Update vendor libraries and dendrite to s/Sirupsen/sirupsen/ (#304) (#305)

main
Erik Johnston 2017-10-13 14:57:54 +01:00 committed by GitHub
parent 464fb5de1c
commit 32a2b3a5c0
396 changed files with 166341 additions and 3732 deletions

39
vendor/manifest vendored
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@ -7,12 +7,6 @@
"revision": "574d3147eee384229bf96a5d12c207fe7b5234f3",
"branch": "master"
},
{
"importpath": "github.com/Sirupsen/logrus",
"repository": "https://github.com/Sirupsen/logrus",
"revision": "61e43dc76f7ee59a82bdf3d71033dc12bea4c77d",
"branch": "master"
},
{
"importpath": "github.com/alecthomas/gometalinter",
"repository": "https://github.com/alecthomas/gometalinter",
@ -129,7 +123,7 @@
{
"importpath": "github.com/matrix-org/dugong",
"repository": "https://github.com/matrix-org/dugong",
"revision": "f04553160a2b197248e032f4fe23d57b9af20cde",
"revision": "a012152b8769963afc822a9af7a3eceac4d776e8",
"branch": "master"
},
{
@ -263,7 +257,7 @@
{
"importpath": "github.com/sirupsen/logrus",
"repository": "https://github.com/sirupsen/logrus",
"revision": "61e43dc76f7ee59a82bdf3d71033dc12bea4c77d",
"revision": "89742aefa4b206dcf400792f3bd35b542998eb3b",
"branch": "master"
},
{
@ -332,24 +326,38 @@
{
"importpath": "golang.org/x/crypto/bcrypt",
"repository": "https://go.googlesource.com/crypto",
"revision": "0fe963104e9d1877082f8fb38f816fcd97eb1d10",
"revision": "9419663f5a44be8b34ca85f08abc5fe1be11f8a3",
"branch": "master",
"path": "/bcrypt"
},
{
"importpath": "golang.org/x/crypto/blowfish",
"repository": "https://go.googlesource.com/crypto",
"revision": "0fe963104e9d1877082f8fb38f816fcd97eb1d10",
"revision": "9419663f5a44be8b34ca85f08abc5fe1be11f8a3",
"branch": "master",
"path": "/blowfish"
},
{
"importpath": "golang.org/x/crypto/curve25519",
"repository": "https://go.googlesource.com/crypto",
"revision": "9419663f5a44be8b34ca85f08abc5fe1be11f8a3",
"branch": "master",
"path": "/curve25519"
},
{
"importpath": "golang.org/x/crypto/ed25519",
"repository": "https://go.googlesource.com/crypto",
"revision": "77014cf7f9bde4925afeed52b7bf676d5f5b4285",
"revision": "9419663f5a44be8b34ca85f08abc5fe1be11f8a3",
"branch": "master",
"path": "/ed25519"
},
{
"importpath": "golang.org/x/crypto/ssh",
"repository": "https://go.googlesource.com/crypto",
"revision": "9419663f5a44be8b34ca85f08abc5fe1be11f8a3",
"branch": "master",
"path": "/ssh"
},
{
"importpath": "golang.org/x/net/bpf",
"repository": "https://go.googlesource.com/net",
@ -392,6 +400,13 @@
"branch": "master",
"path": "/ipv6"
},
{
"importpath": "golang.org/x/sys/unix",
"repository": "https://go.googlesource.com/sys",
"revision": "43eea11bc92608addb41b8a406b0407495c106f6",
"branch": "master",
"path": "/unix"
},
{
"importpath": "gopkg.in/Shopify/sarama.v1",
"repository": "https://gopkg.in/Shopify/sarama.v1",
@ -413,7 +428,7 @@
{
"importpath": "gopkg.in/gemnasium/logrus-airbrake-hook.v2",
"repository": "https://gopkg.in/gemnasium/logrus-airbrake-hook.v2",
"revision": "bfee1239d796830ca346767650cce5ba90d58c57",
"revision": "e928b033a891c0175fb643d5aa0779e86325eb12",
"branch": "master"
},
{

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@ -1,66 +0,0 @@
# 0.10.0
* feature: Add a test hook (#180)
* feature: `ParseLevel` is now case-insensitive (#326)
* feature: `FieldLogger` interface that generalizes `Logger` and `Entry` (#308)
* performance: avoid re-allocations on `WithFields` (#335)
# 0.9.0
* logrus/text_formatter: don't emit empty msg
* logrus/hooks/airbrake: move out of main repository
* logrus/hooks/sentry: move out of main repository
* logrus/hooks/papertrail: move out of main repository
* logrus/hooks/bugsnag: move out of main repository
* logrus/core: run tests with `-race`
* logrus/core: detect TTY based on `stderr`
* logrus/core: support `WithError` on logger
* logrus/core: Solaris support
# 0.8.7
* logrus/core: fix possible race (#216)
* logrus/doc: small typo fixes and doc improvements
# 0.8.6
* hooks/raven: allow passing an initialized client
# 0.8.5
* logrus/core: revert #208
# 0.8.4
* formatter/text: fix data race (#218)
# 0.8.3
* logrus/core: fix entry log level (#208)
* logrus/core: improve performance of text formatter by 40%
* logrus/core: expose `LevelHooks` type
* logrus/core: add support for DragonflyBSD and NetBSD
* formatter/text: print structs more verbosely
# 0.8.2
* logrus: fix more Fatal family functions
# 0.8.1
* logrus: fix not exiting on `Fatalf` and `Fatalln`
# 0.8.0
* logrus: defaults to stderr instead of stdout
* hooks/sentry: add special field for `*http.Request`
* formatter/text: ignore Windows for colors
# 0.7.3
* formatter/\*: allow configuration of timestamp layout
# 0.7.2
* formatter/text: Add configuration option for time format (#158)

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@ -1,21 +0,0 @@
The MIT License (MIT)
Copyright (c) 2014 Simon Eskildsen
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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@ -1,433 +0,0 @@
# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>&nbsp;[![Build Status](https://travis-ci.org/Sirupsen/logrus.svg?branch=master)](https://travis-ci.org/Sirupsen/logrus)&nbsp;[![GoDoc](https://godoc.org/github.com/Sirupsen/logrus?status.svg)](https://godoc.org/github.com/Sirupsen/logrus)
**Seeing weird case-sensitive problems?** See [this
issue](https://github.com/sirupsen/logrus/issues/451#issuecomment-264332021).
This change has been reverted. I apologize for causing this. I greatly
underestimated the impact this would have. Logrus strives for stability and
backwards compatibility and failed to provide that.
Logrus is a structured logger for Go (golang), completely API compatible with
the standard library logger. [Godoc][godoc]. **Please note the Logrus API is not
yet stable (pre 1.0). Logrus itself is completely stable and has been used in
many large deployments. The core API is unlikely to change much but please
version control your Logrus to make sure you aren't fetching latest `master` on
every build.**
Nicely color-coded in development (when a TTY is attached, otherwise just
plain text):
![Colored](http://i.imgur.com/PY7qMwd.png)
With `log.SetFormatter(&log.JSONFormatter{})`, for easy parsing by logstash
or Splunk:
```json
{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the
ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"}
{"level":"warning","msg":"The group's number increased tremendously!",
"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"}
{"animal":"walrus","level":"info","msg":"A giant walrus appears!",
"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"}
{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.",
"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"}
{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true,
"time":"2014-03-10 19:57:38.562543128 -0400 EDT"}
```
With the default `log.SetFormatter(&log.TextFormatter{})` when a TTY is not
attached, the output is compatible with the
[logfmt](http://godoc.org/github.com/kr/logfmt) format:
```text
time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8
time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true
time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4
time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009
time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true
exit status 1
```
#### Example
The simplest way to use Logrus is simply the package-level exported logger:
```go
package main
import (
log "github.com/Sirupsen/logrus"
)
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
}).Info("A walrus appears")
}
```
Note that it's completely api-compatible with the stdlib logger, so you can
replace your `log` imports everywhere with `log "github.com/Sirupsen/logrus"`
and you'll now have the flexibility of Logrus. You can customize it all you
want:
```go
package main
import (
"os"
log "github.com/Sirupsen/logrus"
)
func init() {
// Log as JSON instead of the default ASCII formatter.
log.SetFormatter(&log.JSONFormatter{})
// Output to stdout instead of the default stderr, could also be a file.
log.SetOutput(os.Stdout)
// Only log the warning severity or above.
log.SetLevel(log.WarnLevel)
}
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(log.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(log.Fields{
"omg": true,
"number": 100,
}).Fatal("The ice breaks!")
// A common pattern is to re-use fields between logging statements by re-using
// the logrus.Entry returned from WithFields()
contextLogger := log.WithFields(log.Fields{
"common": "this is a common field",
"other": "I also should be logged always",
})
contextLogger.Info("I'll be logged with common and other field")
contextLogger.Info("Me too")
}
```
For more advanced usage such as logging to multiple locations from the same
application, you can also create an instance of the `logrus` Logger:
```go
package main
import (
"github.com/Sirupsen/logrus"
)
// Create a new instance of the logger. You can have any number of instances.
var log = logrus.New()
func main() {
// The API for setting attributes is a little different than the package level
// exported logger. See Godoc.
log.Out = os.Stderr
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
}
```
#### Fields
Logrus encourages careful, structured logging though logging fields instead of
long, unparseable error messages. For example, instead of: `log.Fatalf("Failed
to send event %s to topic %s with key %d")`, you should log the much more
discoverable:
```go
log.WithFields(log.Fields{
"event": event,
"topic": topic,
"key": key,
}).Fatal("Failed to send event")
```
We've found this API forces you to think about logging in a way that produces
much more useful logging messages. We've been in countless situations where just
a single added field to a log statement that was already there would've saved us
hours. The `WithFields` call is optional.
In general, with Logrus using any of the `printf`-family functions should be
seen as a hint you should add a field, however, you can still use the
`printf`-family functions with Logrus.
#### Hooks
You can add hooks for logging levels. For example to send errors to an exception
tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to
multiple places simultaneously, e.g. syslog.
Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in
`init`:
```go
import (
log "github.com/Sirupsen/logrus"
"gopkg.in/gemnasium/logrus-airbrake-hook.v2" // the package is named "aibrake"
logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
"log/syslog"
)
func init() {
// Use the Airbrake hook to report errors that have Error severity or above to
// an exception tracker. You can create custom hooks, see the Hooks section.
log.AddHook(airbrake.NewHook(123, "xyz", "production"))
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err != nil {
log.Error("Unable to connect to local syslog daemon")
} else {
log.AddHook(hook)
}
}
```
Note: Syslog hook also support connecting to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). For the detail, please check the [syslog hook README](hooks/syslog/README.md).
| Hook | Description |
| ----- | ----------- |
| [Airbrake](https://github.com/gemnasium/logrus-airbrake-hook) | Send errors to the Airbrake API V3. Uses the official [`gobrake`](https://github.com/airbrake/gobrake) behind the scenes. |
| [Airbrake "legacy"](https://github.com/gemnasium/logrus-airbrake-legacy-hook) | Send errors to an exception tracking service compatible with the Airbrake API V2. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. |
| [Papertrail](https://github.com/polds/logrus-papertrail-hook) | Send errors to the [Papertrail](https://papertrailapp.com) hosted logging service via UDP. |
| [Syslog](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. |
| [Bugsnag](https://github.com/Shopify/logrus-bugsnag/blob/master/bugsnag.go) | Send errors to the Bugsnag exception tracking service. |
| [Sentry](https://github.com/evalphobia/logrus_sentry) | Send errors to the Sentry error logging and aggregation service. |
| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. |
| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) |
| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. |
| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` |
| [Graylog](https://github.com/gemnasium/logrus-graylog-hook) | Hook for logging to [Graylog](http://graylog2.org/) |
| [Raygun](https://github.com/squirkle/logrus-raygun-hook) | Hook for logging to [Raygun.io](http://raygun.io/) |
| [LFShook](https://github.com/rifflock/lfshook) | Hook for logging to the local filesystem |
| [Honeybadger](https://github.com/agonzalezro/logrus_honeybadger) | Hook for sending exceptions to Honeybadger |
| [Mail](https://github.com/zbindenren/logrus_mail) | Hook for sending exceptions via mail |
| [Rollrus](https://github.com/heroku/rollrus) | Hook for sending errors to rollbar |
| [Fluentd](https://github.com/evalphobia/logrus_fluent) | Hook for logging to fluentd |
| [Mongodb](https://github.com/weekface/mgorus) | Hook for logging to mongodb |
| [Influxus] (http://github.com/vlad-doru/influxus) | Hook for concurrently logging to [InfluxDB] (http://influxdata.com/) |
| [InfluxDB](https://github.com/Abramovic/logrus_influxdb) | Hook for logging to influxdb |
| [Octokit](https://github.com/dorajistyle/logrus-octokit-hook) | Hook for logging to github via octokit |
| [DeferPanic](https://github.com/deferpanic/dp-logrus) | Hook for logging to DeferPanic |
| [Redis-Hook](https://github.com/rogierlommers/logrus-redis-hook) | Hook for logging to a ELK stack (through Redis) |
| [Amqp-Hook](https://github.com/vladoatanasov/logrus_amqp) | Hook for logging to Amqp broker (Like RabbitMQ) |
| [KafkaLogrus](https://github.com/goibibo/KafkaLogrus) | Hook for logging to kafka |
| [Typetalk](https://github.com/dragon3/logrus-typetalk-hook) | Hook for logging to [Typetalk](https://www.typetalk.in/) |
| [ElasticSearch](https://github.com/sohlich/elogrus) | Hook for logging to ElasticSearch|
| [Sumorus](https://github.com/doublefree/sumorus) | Hook for logging to [SumoLogic](https://www.sumologic.com/)|
| [Scribe](https://github.com/sagar8192/logrus-scribe-hook) | Hook for logging to [Scribe](https://github.com/facebookarchive/scribe)|
| [Logstash](https://github.com/bshuster-repo/logrus-logstash-hook) | Hook for logging to [Logstash](https://www.elastic.co/products/logstash) |
| [logz.io](https://github.com/ripcurld00d/logrus-logzio-hook) | Hook for logging to [logz.io](https://logz.io), a Log as a Service using Logstash |
| [Logmatic.io](https://github.com/logmatic/logmatic-go) | Hook for logging to [Logmatic.io](http://logmatic.io/) |
| [Pushover](https://github.com/toorop/logrus_pushover) | Send error via [Pushover](https://pushover.net) |
| [PostgreSQL](https://github.com/gemnasium/logrus-postgresql-hook) | Send logs to [PostgreSQL](http://postgresql.org) |
| [Logentrus](https://github.com/puddingfactory/logentrus) | Hook for logging to [Logentries](https://logentries.com/) |
#### Level logging
Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic.
```go
log.Debug("Useful debugging information.")
log.Info("Something noteworthy happened!")
log.Warn("You should probably take a look at this.")
log.Error("Something failed but I'm not quitting.")
// Calls os.Exit(1) after logging
log.Fatal("Bye.")
// Calls panic() after logging
log.Panic("I'm bailing.")
```
You can set the logging level on a `Logger`, then it will only log entries with
that severity or anything above it:
```go
// Will log anything that is info or above (warn, error, fatal, panic). Default.
log.SetLevel(log.InfoLevel)
```
It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose
environment if your application has that.
#### Entries
Besides the fields added with `WithField` or `WithFields` some fields are
automatically added to all logging events:
1. `time`. The timestamp when the entry was created.
2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after
the `AddFields` call. E.g. `Failed to send event.`
3. `level`. The logging level. E.g. `info`.
#### Environments
Logrus has no notion of environment.
If you wish for hooks and formatters to only be used in specific environments,
you should handle that yourself. For example, if your application has a global
variable `Environment`, which is a string representation of the environment you
could do:
```go
import (
log "github.com/Sirupsen/logrus"
)
init() {
// do something here to set environment depending on an environment variable
// or command-line flag
if Environment == "production" {
log.SetFormatter(&log.JSONFormatter{})
} else {
// The TextFormatter is default, you don't actually have to do this.
log.SetFormatter(&log.TextFormatter{})
}
}
```
This configuration is how `logrus` was intended to be used, but JSON in
production is mostly only useful if you do log aggregation with tools like
Splunk or Logstash.
#### Formatters
The built-in logging formatters are:
* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise
without colors.
* *Note:* to force colored output when there is no TTY, set the `ForceColors`
field to `true`. To force no colored output even if there is a TTY set the
`DisableColors` field to `true`
* `logrus.JSONFormatter`. Logs fields as JSON.
Third party logging formatters:
* [`logstash`](https://github.com/bshuster-repo/logrus-logstash-hook). Logs fields as [Logstash](http://logstash.net) Events.
* [`prefixed`](https://github.com/x-cray/logrus-prefixed-formatter). Displays log entry source along with alternative layout.
* [`zalgo`](https://github.com/aybabtme/logzalgo). Invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦.
You can define your formatter by implementing the `Formatter` interface,
requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a
`Fields` type (`map[string]interface{}`) with all your fields as well as the
default ones (see Entries section above):
```go
type MyJSONFormatter struct {
}
log.SetFormatter(new(MyJSONFormatter))
func (f *MyJSONFormatter) Format(entry *Entry) ([]byte, error) {
// Note this doesn't include Time, Level and Message which are available on
// the Entry. Consult `godoc` on information about those fields or read the
// source of the official loggers.
serialized, err := json.Marshal(entry.Data)
if err != nil {
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
}
return append(serialized, '\n'), nil
}
```
#### Logger as an `io.Writer`
Logrus can be transformed into an `io.Writer`. That writer is the end of an `io.Pipe` and it is your responsibility to close it.
```go
w := logger.Writer()
defer w.Close()
srv := http.Server{
// create a stdlib log.Logger that writes to
// logrus.Logger.
ErrorLog: log.New(w, "", 0),
}
```
Each line written to that writer will be printed the usual way, using formatters
and hooks. The level for those entries is `info`.
#### Rotation
Log rotation is not provided with Logrus. Log rotation should be done by an
external program (like `logrotate(8)`) that can compress and delete old log
entries. It should not be a feature of the application-level logger.
#### Tools
| Tool | Description |
| ---- | ----------- |
|[Logrus Mate](https://github.com/gogap/logrus_mate)|Logrus mate is a tool for Logrus to manage loggers, you can initial logger's level, hook and formatter by config file, the logger will generated with different config at different environment.|
|[Logrus Viper Helper](https://github.com/heirko/go-contrib/tree/master/logrusHelper)|An Helper arround Logrus to wrap with spf13/Viper to load configuration with fangs! And to simplify Logrus configuration use some behavior of [Logrus Mate](https://github.com/gogap/logrus_mate). [sample](https://github.com/heirko/iris-contrib/blob/master/middleware/logrus-logger/example) |
#### Testing
Logrus has a built in facility for asserting the presence of log messages. This is implemented through the `test` hook and provides:
* decorators for existing logger (`test.NewLocal` and `test.NewGlobal`) which basically just add the `test` hook
* a test logger (`test.NewNullLogger`) that just records log messages (and does not output any):
```go
logger, hook := NewNullLogger()
logger.Error("Hello error")
assert.Equal(1, len(hook.Entries))
assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
assert.Equal("Hello error", hook.LastEntry().Message)
hook.Reset()
assert.Nil(hook.LastEntry())
```
#### Fatal handlers
Logrus can register one or more functions that will be called when any `fatal`
level message is logged. The registered handlers will be executed before
logrus performs a `os.Exit(1)`. This behavior may be helpful if callers need
to gracefully shutdown. Unlike a `panic("Something went wrong...")` call which can be intercepted with a deferred `recover` a call to `os.Exit(1)` can not be intercepted.
```
...
handler := func() {
// gracefully shutdown something...
}
logrus.RegisterExitHandler(handler)
...
```
#### Thread safety
By default Logger is protected by mutex for concurrent writes, this mutex is invoked when calling hooks and writing logs.
If you are sure such locking is not needed, you can call logger.SetNoLock() to disable the locking.
Situation when locking is not needed includes:
* You have no hooks registered, or hooks calling is already thread-safe.
* Writing to logger.Out is already thread-safe, for example:
1) logger.Out is protected by locks.
2) logger.Out is a os.File handler opened with `O_APPEND` flag, and every write is smaller than 4k. (This allow multi-thread/multi-process writing)
(Refer to http://www.notthewizard.com/2014/06/17/are-files-appends-really-atomic/)

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@ -1,64 +0,0 @@
package logrus
// The following code was sourced and modified from the
// https://bitbucket.org/tebeka/atexit package governed by the following license:
//
// Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import (
"fmt"
"os"
)
var handlers = []func(){}
func runHandler(handler func()) {
defer func() {
if err := recover(); err != nil {
fmt.Fprintln(os.Stderr, "Error: Logrus exit handler error:", err)
}
}()
handler()
}
func runHandlers() {
for _, handler := range handlers {
runHandler(handler)
}
}
// Exit runs all the Logrus atexit handlers and then terminates the program using os.Exit(code)
func Exit(code int) {
runHandlers()
os.Exit(code)
}
// RegisterExitHandler adds a Logrus Exit handler, call logrus.Exit to invoke
// all handlers. The handlers will also be invoked when any Fatal log entry is
// made.
//
// This method is useful when a caller wishes to use logrus to log a fatal
// message but also needs to gracefully shutdown. An example usecase could be
// closing database connections, or sending a alert that the application is
// closing.
func RegisterExitHandler(handler func()) {
handlers = append(handlers, handler)
}

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@ -1,74 +0,0 @@
package logrus
import (
"io/ioutil"
"os/exec"
"testing"
"time"
)
func TestRegister(t *testing.T) {
current := len(handlers)
RegisterExitHandler(func() {})
if len(handlers) != current+1 {
t.Fatalf("can't add handler")
}
}
func TestHandler(t *testing.T) {
gofile := "/tmp/testprog.go"
if err := ioutil.WriteFile(gofile, testprog, 0666); err != nil {
t.Fatalf("can't create go file")
}
outfile := "/tmp/testprog.out"
arg := time.Now().UTC().String()
err := exec.Command("go", "run", gofile, outfile, arg).Run()
if err == nil {
t.Fatalf("completed normally, should have failed")
}
data, err := ioutil.ReadFile(outfile)
if err != nil {
t.Fatalf("can't read output file %s", outfile)
}
if string(data) != arg {
t.Fatalf("bad data")
}
}
var testprog = []byte(`
// Test program for atexit, gets output file and data as arguments and writes
// data to output file in atexit handler.
package main
import (
"github.com/Sirupsen/logrus"
"flag"
"fmt"
"io/ioutil"
)
var outfile = ""
var data = ""
func handler() {
ioutil.WriteFile(outfile, []byte(data), 0666)
}
func badHandler() {
n := 0
fmt.Println(1/n)
}
func main() {
flag.Parse()
outfile = flag.Arg(0)
data = flag.Arg(1)
logrus.RegisterExitHandler(handler)
logrus.RegisterExitHandler(badHandler)
logrus.Fatal("Bye bye")
}
`)

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@ -1,26 +0,0 @@
/*
Package logrus is a structured logger for Go, completely API compatible with the standard library logger.
The simplest way to use Logrus is simply the package-level exported logger:
package main
import (
log "github.com/Sirupsen/logrus"
)
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
"number": 1,
"size": 10,
}).Info("A walrus appears")
}
Output:
time="2015-09-07T08:48:33Z" level=info msg="A walrus appears" animal=walrus number=1 size=10
For a full guide visit https://github.com/Sirupsen/logrus
*/
package logrus

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@ -1,275 +0,0 @@
package logrus
import (
"bytes"
"fmt"
"os"
"sync"
"time"
)
var bufferPool *sync.Pool
func init() {
bufferPool = &sync.Pool{
New: func() interface{} {
return new(bytes.Buffer)
},
}
}
// Defines the key when adding errors using WithError.
var ErrorKey = "error"
// An entry is the final or intermediate Logrus logging entry. It contains all
// the fields passed with WithField{,s}. It's finally logged when Debug, Info,
// Warn, Error, Fatal or Panic is called on it. These objects can be reused and
// passed around as much as you wish to avoid field duplication.
type Entry struct {
Logger *Logger
// Contains all the fields set by the user.
Data Fields
// Time at which the log entry was created
Time time.Time
// Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic
Level Level
// Message passed to Debug, Info, Warn, Error, Fatal or Panic
Message string
// When formatter is called in entry.log(), an Buffer may be set to entry
Buffer *bytes.Buffer
}
func NewEntry(logger *Logger) *Entry {
return &Entry{
Logger: logger,
// Default is three fields, give a little extra room
Data: make(Fields, 5),
}
}
// Returns the string representation from the reader and ultimately the
// formatter.
func (entry *Entry) String() (string, error) {
serialized, err := entry.Logger.Formatter.Format(entry)
if err != nil {
return "", err
}
str := string(serialized)
return str, nil
}
// Add an error as single field (using the key defined in ErrorKey) to the Entry.
func (entry *Entry) WithError(err error) *Entry {
return entry.WithField(ErrorKey, err)
}
// Add a single field to the Entry.
func (entry *Entry) WithField(key string, value interface{}) *Entry {
return entry.WithFields(Fields{key: value})
}
// Add a map of fields to the Entry.
func (entry *Entry) WithFields(fields Fields) *Entry {
data := make(Fields, len(entry.Data)+len(fields))
for k, v := range entry.Data {
data[k] = v
}
for k, v := range fields {
data[k] = v
}
return &Entry{Logger: entry.Logger, Data: data}
}
// This function is not declared with a pointer value because otherwise
// race conditions will occur when using multiple goroutines
func (entry Entry) log(level Level, msg string) {
var buffer *bytes.Buffer
entry.Time = time.Now()
entry.Level = level
entry.Message = msg
if err := entry.Logger.Hooks.Fire(level, &entry); err != nil {
entry.Logger.mu.Lock()
fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
entry.Logger.mu.Unlock()
}
buffer = bufferPool.Get().(*bytes.Buffer)
buffer.Reset()
defer bufferPool.Put(buffer)
entry.Buffer = buffer
serialized, err := entry.Logger.Formatter.Format(&entry)
entry.Buffer = nil
if err != nil {
entry.Logger.mu.Lock()
fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
entry.Logger.mu.Unlock()
} else {
entry.Logger.mu.Lock()
_, err = entry.Logger.Out.Write(serialized)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
}
entry.Logger.mu.Unlock()
}
// To avoid Entry#log() returning a value that only would make sense for
// panic() to use in Entry#Panic(), we avoid the allocation by checking
// directly here.
if level <= PanicLevel {
panic(&entry)
}
}
func (entry *Entry) Debug(args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
entry.log(DebugLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Print(args ...interface{}) {
entry.Info(args...)
}
func (entry *Entry) Info(args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
entry.log(InfoLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Warn(args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
entry.log(WarnLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Warning(args ...interface{}) {
entry.Warn(args...)
}
func (entry *Entry) Error(args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
entry.log(ErrorLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Fatal(args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
entry.log(FatalLevel, fmt.Sprint(args...))
}
Exit(1)
}
func (entry *Entry) Panic(args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
entry.log(PanicLevel, fmt.Sprint(args...))
}
panic(fmt.Sprint(args...))
}
// Entry Printf family functions
func (entry *Entry) Debugf(format string, args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
entry.Debug(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Infof(format string, args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
entry.Info(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Printf(format string, args ...interface{}) {
entry.Infof(format, args...)
}
func (entry *Entry) Warnf(format string, args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
entry.Warn(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Warningf(format string, args ...interface{}) {
entry.Warnf(format, args...)
}
func (entry *Entry) Errorf(format string, args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
entry.Error(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Fatalf(format string, args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
entry.Fatal(fmt.Sprintf(format, args...))
}
Exit(1)
}
func (entry *Entry) Panicf(format string, args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
entry.Panic(fmt.Sprintf(format, args...))
}
}
// Entry Println family functions
func (entry *Entry) Debugln(args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
entry.Debug(entry.sprintlnn(args...))
}
}
func (entry *Entry) Infoln(args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
entry.Info(entry.sprintlnn(args...))
}
}
func (entry *Entry) Println(args ...interface{}) {
entry.Infoln(args...)
}
func (entry *Entry) Warnln(args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
entry.Warn(entry.sprintlnn(args...))
}
}
func (entry *Entry) Warningln(args ...interface{}) {
entry.Warnln(args...)
}
func (entry *Entry) Errorln(args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
entry.Error(entry.sprintlnn(args...))
}
}
func (entry *Entry) Fatalln(args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
entry.Fatal(entry.sprintlnn(args...))
}
Exit(1)
}
func (entry *Entry) Panicln(args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
entry.Panic(entry.sprintlnn(args...))
}
}
// Sprintlnn => Sprint no newline. This is to get the behavior of how
// fmt.Sprintln where spaces are always added between operands, regardless of
// their type. Instead of vendoring the Sprintln implementation to spare a
// string allocation, we do the simplest thing.
func (entry *Entry) sprintlnn(args ...interface{}) string {
msg := fmt.Sprintln(args...)
return msg[:len(msg)-1]
}

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@ -1,77 +0,0 @@
package logrus
import (
"bytes"
"fmt"
"testing"
"github.com/stretchr/testify/assert"
)
func TestEntryWithError(t *testing.T) {
assert := assert.New(t)
defer func() {
ErrorKey = "error"
}()
err := fmt.Errorf("kaboom at layer %d", 4711)
assert.Equal(err, WithError(err).Data["error"])
logger := New()
logger.Out = &bytes.Buffer{}
entry := NewEntry(logger)
assert.Equal(err, entry.WithError(err).Data["error"])
ErrorKey = "err"
assert.Equal(err, entry.WithError(err).Data["err"])
}
func TestEntryPanicln(t *testing.T) {
errBoom := fmt.Errorf("boom time")
defer func() {
p := recover()
assert.NotNil(t, p)
switch pVal := p.(type) {
case *Entry:
assert.Equal(t, "kaboom", pVal.Message)
assert.Equal(t, errBoom, pVal.Data["err"])
default:
t.Fatalf("want type *Entry, got %T: %#v", pVal, pVal)
}
}()
logger := New()
logger.Out = &bytes.Buffer{}
entry := NewEntry(logger)
entry.WithField("err", errBoom).Panicln("kaboom")
}
func TestEntryPanicf(t *testing.T) {
errBoom := fmt.Errorf("boom again")
defer func() {
p := recover()
assert.NotNil(t, p)
switch pVal := p.(type) {
case *Entry:
assert.Equal(t, "kaboom true", pVal.Message)
assert.Equal(t, errBoom, pVal.Data["err"])
default:
t.Fatalf("want type *Entry, got %T: %#v", pVal, pVal)
}
}()
logger := New()
logger.Out = &bytes.Buffer{}
entry := NewEntry(logger)
entry.WithField("err", errBoom).Panicf("kaboom %v", true)
}

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@ -1,50 +0,0 @@
package main
import (
"github.com/Sirupsen/logrus"
)
var log = logrus.New()
func init() {
log.Formatter = new(logrus.JSONFormatter)
log.Formatter = new(logrus.TextFormatter) // default
log.Level = logrus.DebugLevel
}
func main() {
defer func() {
err := recover()
if err != nil {
log.WithFields(logrus.Fields{
"omg": true,
"err": err,
"number": 100,
}).Fatal("The ice breaks!")
}
}()
log.WithFields(logrus.Fields{
"animal": "walrus",
"number": 8,
}).Debug("Started observing beach")
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(logrus.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(logrus.Fields{
"temperature": -4,
}).Debug("Temperature changes")
log.WithFields(logrus.Fields{
"animal": "orca",
"size": 9009,
}).Panic("It's over 9000!")
}

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@ -1,30 +0,0 @@
package main
import (
"github.com/Sirupsen/logrus"
"gopkg.in/gemnasium/logrus-airbrake-hook.v2"
)
var log = logrus.New()
func init() {
log.Formatter = new(logrus.TextFormatter) // default
log.Hooks.Add(airbrake.NewHook(123, "xyz", "development"))
}
func main() {
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(logrus.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(logrus.Fields{
"omg": true,
"number": 100,
}).Fatal("The ice breaks!")
}

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@ -1,193 +0,0 @@
package logrus
import (
"io"
)
var (
// std is the name of the standard logger in stdlib `log`
std = New()
)
func StandardLogger() *Logger {
return std
}
// SetOutput sets the standard logger output.
func SetOutput(out io.Writer) {
std.mu.Lock()
defer std.mu.Unlock()
std.Out = out
}
// SetFormatter sets the standard logger formatter.
func SetFormatter(formatter Formatter) {
std.mu.Lock()
defer std.mu.Unlock()
std.Formatter = formatter
}
// SetLevel sets the standard logger level.
func SetLevel(level Level) {
std.mu.Lock()
defer std.mu.Unlock()
std.Level = level
}
// GetLevel returns the standard logger level.
func GetLevel() Level {
std.mu.Lock()
defer std.mu.Unlock()
return std.Level
}
// AddHook adds a hook to the standard logger hooks.
func AddHook(hook Hook) {
std.mu.Lock()
defer std.mu.Unlock()
std.Hooks.Add(hook)
}
// WithError creates an entry from the standard logger and adds an error to it, using the value defined in ErrorKey as key.
func WithError(err error) *Entry {
return std.WithField(ErrorKey, err)
}
// WithField creates an entry from the standard logger and adds a field to
// it. If you want multiple fields, use `WithFields`.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithField(key string, value interface{}) *Entry {
return std.WithField(key, value)
}
// WithFields creates an entry from the standard logger and adds multiple
// fields to it. This is simply a helper for `WithField`, invoking it
// once for each field.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithFields(fields Fields) *Entry {
return std.WithFields(fields)
}
// Debug logs a message at level Debug on the standard logger.
func Debug(args ...interface{}) {
std.Debug(args...)
}
// Print logs a message at level Info on the standard logger.
func Print(args ...interface{}) {
std.Print(args...)
}
// Info logs a message at level Info on the standard logger.
func Info(args ...interface{}) {
std.Info(args...)
}
// Warn logs a message at level Warn on the standard logger.
func Warn(args ...interface{}) {
std.Warn(args...)
}
// Warning logs a message at level Warn on the standard logger.
func Warning(args ...interface{}) {
std.Warning(args...)
}
// Error logs a message at level Error on the standard logger.
func Error(args ...interface{}) {
std.Error(args...)
}
// Panic logs a message at level Panic on the standard logger.
func Panic(args ...interface{}) {
std.Panic(args...)
}
// Fatal logs a message at level Fatal on the standard logger.
func Fatal(args ...interface{}) {
std.Fatal(args...)
}
// Debugf logs a message at level Debug on the standard logger.
func Debugf(format string, args ...interface{}) {
std.Debugf(format, args...)
}
// Printf logs a message at level Info on the standard logger.
func Printf(format string, args ...interface{}) {
std.Printf(format, args...)
}
// Infof logs a message at level Info on the standard logger.
func Infof(format string, args ...interface{}) {
std.Infof(format, args...)
}
// Warnf logs a message at level Warn on the standard logger.
func Warnf(format string, args ...interface{}) {
std.Warnf(format, args...)
}
// Warningf logs a message at level Warn on the standard logger.
func Warningf(format string, args ...interface{}) {
std.Warningf(format, args...)
}
// Errorf logs a message at level Error on the standard logger.
func Errorf(format string, args ...interface{}) {
std.Errorf(format, args...)
}
// Panicf logs a message at level Panic on the standard logger.
func Panicf(format string, args ...interface{}) {
std.Panicf(format, args...)
}
// Fatalf logs a message at level Fatal on the standard logger.
func Fatalf(format string, args ...interface{}) {
std.Fatalf(format, args...)
}
// Debugln logs a message at level Debug on the standard logger.
func Debugln(args ...interface{}) {
std.Debugln(args...)
}
// Println logs a message at level Info on the standard logger.
func Println(args ...interface{}) {
std.Println(args...)
}
// Infoln logs a message at level Info on the standard logger.
func Infoln(args ...interface{}) {
std.Infoln(args...)
}
// Warnln logs a message at level Warn on the standard logger.
func Warnln(args ...interface{}) {
std.Warnln(args...)
}
// Warningln logs a message at level Warn on the standard logger.
func Warningln(args ...interface{}) {
std.Warningln(args...)
}
// Errorln logs a message at level Error on the standard logger.
func Errorln(args ...interface{}) {
std.Errorln(args...)
}
// Panicln logs a message at level Panic on the standard logger.
func Panicln(args ...interface{}) {
std.Panicln(args...)
}
// Fatalln logs a message at level Fatal on the standard logger.
func Fatalln(args ...interface{}) {
std.Fatalln(args...)
}

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@ -1,45 +0,0 @@
package logrus
import "time"
const DefaultTimestampFormat = time.RFC3339
// The Formatter interface is used to implement a custom Formatter. It takes an
// `Entry`. It exposes all the fields, including the default ones:
//
// * `entry.Data["msg"]`. The message passed from Info, Warn, Error ..
// * `entry.Data["time"]`. The timestamp.
// * `entry.Data["level"]. The level the entry was logged at.
//
// Any additional fields added with `WithField` or `WithFields` are also in
// `entry.Data`. Format is expected to return an array of bytes which are then
// logged to `logger.Out`.
type Formatter interface {
Format(*Entry) ([]byte, error)
}
// This is to not silently overwrite `time`, `msg` and `level` fields when
// dumping it. If this code wasn't there doing:
//
// logrus.WithField("level", 1).Info("hello")
//
// Would just silently drop the user provided level. Instead with this code
// it'll logged as:
//
// {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."}
//
// It's not exported because it's still using Data in an opinionated way. It's to
// avoid code duplication between the two default formatters.
func prefixFieldClashes(data Fields) {
if t, ok := data["time"]; ok {
data["fields.time"] = t
}
if m, ok := data["msg"]; ok {
data["fields.msg"] = m
}
if l, ok := data["level"]; ok {
data["fields.level"] = l
}
}

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@ -1,98 +0,0 @@
package logrus
import (
"fmt"
"testing"
"time"
)
// smallFields is a small size data set for benchmarking
var smallFields = Fields{
"foo": "bar",
"baz": "qux",
"one": "two",
"three": "four",
}
// largeFields is a large size data set for benchmarking
var largeFields = Fields{
"foo": "bar",
"baz": "qux",
"one": "two",
"three": "four",
"five": "six",
"seven": "eight",
"nine": "ten",
"eleven": "twelve",
"thirteen": "fourteen",
"fifteen": "sixteen",
"seventeen": "eighteen",
"nineteen": "twenty",
"a": "b",
"c": "d",
"e": "f",
"g": "h",
"i": "j",
"k": "l",
"m": "n",
"o": "p",
"q": "r",
"s": "t",
"u": "v",
"w": "x",
"y": "z",
"this": "will",
"make": "thirty",
"entries": "yeah",
}
var errorFields = Fields{
"foo": fmt.Errorf("bar"),
"baz": fmt.Errorf("qux"),
}
func BenchmarkErrorTextFormatter(b *testing.B) {
doBenchmark(b, &TextFormatter{DisableColors: true}, errorFields)
}
func BenchmarkSmallTextFormatter(b *testing.B) {
doBenchmark(b, &TextFormatter{DisableColors: true}, smallFields)
}
func BenchmarkLargeTextFormatter(b *testing.B) {
doBenchmark(b, &TextFormatter{DisableColors: true}, largeFields)
}
func BenchmarkSmallColoredTextFormatter(b *testing.B) {
doBenchmark(b, &TextFormatter{ForceColors: true}, smallFields)
}
func BenchmarkLargeColoredTextFormatter(b *testing.B) {
doBenchmark(b, &TextFormatter{ForceColors: true}, largeFields)
}
func BenchmarkSmallJSONFormatter(b *testing.B) {
doBenchmark(b, &JSONFormatter{}, smallFields)
}
func BenchmarkLargeJSONFormatter(b *testing.B) {
doBenchmark(b, &JSONFormatter{}, largeFields)
}
func doBenchmark(b *testing.B, formatter Formatter, fields Fields) {
entry := &Entry{
Time: time.Time{},
Level: InfoLevel,
Message: "message",
Data: fields,
}
var d []byte
var err error
for i := 0; i < b.N; i++ {
d, err = formatter.Format(entry)
if err != nil {
b.Fatal(err)
}
b.SetBytes(int64(len(d)))
}
}

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@ -1,122 +0,0 @@
package logrus
import (
"testing"
"github.com/stretchr/testify/assert"
)
type TestHook struct {
Fired bool
}
func (hook *TestHook) Fire(entry *Entry) error {
hook.Fired = true
return nil
}
func (hook *TestHook) Levels() []Level {
return []Level{
DebugLevel,
InfoLevel,
WarnLevel,
ErrorLevel,
FatalLevel,
PanicLevel,
}
}
func TestHookFires(t *testing.T) {
hook := new(TestHook)
LogAndAssertJSON(t, func(log *Logger) {
log.Hooks.Add(hook)
assert.Equal(t, hook.Fired, false)
log.Print("test")
}, func(fields Fields) {
assert.Equal(t, hook.Fired, true)
})
}
type ModifyHook struct {
}
func (hook *ModifyHook) Fire(entry *Entry) error {
entry.Data["wow"] = "whale"
return nil
}
func (hook *ModifyHook) Levels() []Level {
return []Level{
DebugLevel,
InfoLevel,
WarnLevel,
ErrorLevel,
FatalLevel,
PanicLevel,
}
}
func TestHookCanModifyEntry(t *testing.T) {
hook := new(ModifyHook)
LogAndAssertJSON(t, func(log *Logger) {
log.Hooks.Add(hook)
log.WithField("wow", "elephant").Print("test")
}, func(fields Fields) {
assert.Equal(t, fields["wow"], "whale")
})
}
func TestCanFireMultipleHooks(t *testing.T) {
hook1 := new(ModifyHook)
hook2 := new(TestHook)
LogAndAssertJSON(t, func(log *Logger) {
log.Hooks.Add(hook1)
log.Hooks.Add(hook2)
log.WithField("wow", "elephant").Print("test")
}, func(fields Fields) {
assert.Equal(t, fields["wow"], "whale")
assert.Equal(t, hook2.Fired, true)
})
}
type ErrorHook struct {
Fired bool
}
func (hook *ErrorHook) Fire(entry *Entry) error {
hook.Fired = true
return nil
}
func (hook *ErrorHook) Levels() []Level {
return []Level{
ErrorLevel,
}
}
func TestErrorHookShouldntFireOnInfo(t *testing.T) {
hook := new(ErrorHook)
LogAndAssertJSON(t, func(log *Logger) {
log.Hooks.Add(hook)
log.Info("test")
}, func(fields Fields) {
assert.Equal(t, hook.Fired, false)
})
}
func TestErrorHookShouldFireOnError(t *testing.T) {
hook := new(ErrorHook)
LogAndAssertJSON(t, func(log *Logger) {
log.Hooks.Add(hook)
log.Error("test")
}, func(fields Fields) {
assert.Equal(t, hook.Fired, true)
})
}

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@ -1,34 +0,0 @@
package logrus
// A hook to be fired when logging on the logging levels returned from
// `Levels()` on your implementation of the interface. Note that this is not
// fired in a goroutine or a channel with workers, you should handle such
// functionality yourself if your call is non-blocking and you don't wish for
// the logging calls for levels returned from `Levels()` to block.
type Hook interface {
Levels() []Level
Fire(*Entry) error
}
// Internal type for storing the hooks on a logger instance.
type LevelHooks map[Level][]Hook
// Add a hook to an instance of logger. This is called with
// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface.
func (hooks LevelHooks) Add(hook Hook) {
for _, level := range hook.Levels() {
hooks[level] = append(hooks[level], hook)
}
}
// Fire all the hooks for the passed level. Used by `entry.log` to fire
// appropriate hooks for a log entry.
func (hooks LevelHooks) Fire(level Level, entry *Entry) error {
for _, hook := range hooks[level] {
if err := hook.Fire(entry); err != nil {
return err
}
}
return nil
}

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@ -1,39 +0,0 @@
# Syslog Hooks for Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>
## Usage
```go
import (
"log/syslog"
"github.com/Sirupsen/logrus"
logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
)
func main() {
log := logrus.New()
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err == nil {
log.Hooks.Add(hook)
}
}
```
If you want to connect to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). Just assign empty string to the first two parameters of `NewSyslogHook`. It should look like the following.
```go
import (
"log/syslog"
"github.com/Sirupsen/logrus"
logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
)
func main() {
log := logrus.New()
hook, err := logrus_syslog.NewSyslogHook("", "", syslog.LOG_INFO, "")
if err == nil {
log.Hooks.Add(hook)
}
}
```

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@ -1,54 +0,0 @@
// +build !windows,!nacl,!plan9
package logrus_syslog
import (
"fmt"
"github.com/Sirupsen/logrus"
"log/syslog"
"os"
)
// SyslogHook to send logs via syslog.
type SyslogHook struct {
Writer *syslog.Writer
SyslogNetwork string
SyslogRaddr string
}
// Creates a hook to be added to an instance of logger. This is called with
// `hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_DEBUG, "")`
// `if err == nil { log.Hooks.Add(hook) }`
func NewSyslogHook(network, raddr string, priority syslog.Priority, tag string) (*SyslogHook, error) {
w, err := syslog.Dial(network, raddr, priority, tag)
return &SyslogHook{w, network, raddr}, err
}
func (hook *SyslogHook) Fire(entry *logrus.Entry) error {
line, err := entry.String()
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err)
return err
}
switch entry.Level {
case logrus.PanicLevel:
return hook.Writer.Crit(line)
case logrus.FatalLevel:
return hook.Writer.Crit(line)
case logrus.ErrorLevel:
return hook.Writer.Err(line)
case logrus.WarnLevel:
return hook.Writer.Warning(line)
case logrus.InfoLevel:
return hook.Writer.Info(line)
case logrus.DebugLevel:
return hook.Writer.Debug(line)
default:
return nil
}
}
func (hook *SyslogHook) Levels() []logrus.Level {
return logrus.AllLevels
}

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@ -1,26 +0,0 @@
package logrus_syslog
import (
"github.com/Sirupsen/logrus"
"log/syslog"
"testing"
)
func TestLocalhostAddAndPrint(t *testing.T) {
log := logrus.New()
hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err != nil {
t.Errorf("Unable to connect to local syslog.")
}
log.Hooks.Add(hook)
for _, level := range hook.Levels() {
if len(log.Hooks[level]) != 1 {
t.Errorf("SyslogHook was not added. The length of log.Hooks[%v]: %v", level, len(log.Hooks[level]))
}
}
log.Info("Congratulations!")
}

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@ -1,67 +0,0 @@
package test
import (
"io/ioutil"
"github.com/Sirupsen/logrus"
)
// test.Hook is a hook designed for dealing with logs in test scenarios.
type Hook struct {
Entries []*logrus.Entry
}
// Installs a test hook for the global logger.
func NewGlobal() *Hook {
hook := new(Hook)
logrus.AddHook(hook)
return hook
}
// Installs a test hook for a given local logger.
func NewLocal(logger *logrus.Logger) *Hook {
hook := new(Hook)
logger.Hooks.Add(hook)
return hook
}
// Creates a discarding logger and installs the test hook.
func NewNullLogger() (*logrus.Logger, *Hook) {
logger := logrus.New()
logger.Out = ioutil.Discard
return logger, NewLocal(logger)
}
func (t *Hook) Fire(e *logrus.Entry) error {
t.Entries = append(t.Entries, e)
return nil
}
func (t *Hook) Levels() []logrus.Level {
return logrus.AllLevels
}
// LastEntry returns the last entry that was logged or nil.
func (t *Hook) LastEntry() (l *logrus.Entry) {
if i := len(t.Entries) - 1; i < 0 {
return nil
} else {
return t.Entries[i]
}
}
// Reset removes all Entries from this test hook.
func (t *Hook) Reset() {
t.Entries = make([]*logrus.Entry, 0)
}

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@ -1,39 +0,0 @@
package test
import (
"testing"
"github.com/Sirupsen/logrus"
"github.com/stretchr/testify/assert"
)
func TestAllHooks(t *testing.T) {
assert := assert.New(t)
logger, hook := NewNullLogger()
assert.Nil(hook.LastEntry())
assert.Equal(0, len(hook.Entries))
logger.Error("Hello error")
assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
assert.Equal("Hello error", hook.LastEntry().Message)
assert.Equal(1, len(hook.Entries))
logger.Warn("Hello warning")
assert.Equal(logrus.WarnLevel, hook.LastEntry().Level)
assert.Equal("Hello warning", hook.LastEntry().Message)
assert.Equal(2, len(hook.Entries))
hook.Reset()
assert.Nil(hook.LastEntry())
assert.Equal(0, len(hook.Entries))
hook = NewGlobal()
logrus.Error("Hello error")
assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
assert.Equal("Hello error", hook.LastEntry().Message)
assert.Equal(1, len(hook.Entries))
}

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@ -1,74 +0,0 @@
package logrus
import (
"encoding/json"
"fmt"
)
type fieldKey string
type FieldMap map[fieldKey]string
const (
FieldKeyMsg = "msg"
FieldKeyLevel = "level"
FieldKeyTime = "time"
)
func (f FieldMap) resolve(key fieldKey) string {
if k, ok := f[key]; ok {
return k
}
return string(key)
}
type JSONFormatter struct {
// TimestampFormat sets the format used for marshaling timestamps.
TimestampFormat string
// DisableTimestamp allows disabling automatic timestamps in output
DisableTimestamp bool
// FieldMap allows users to customize the names of keys for various fields.
// As an example:
// formatter := &JSONFormatter{
// FieldMap: FieldMap{
// FieldKeyTime: "@timestamp",
// FieldKeyLevel: "@level",
// FieldKeyLevel: "@message",
// },
// }
FieldMap FieldMap
}
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
data := make(Fields, len(entry.Data)+3)
for k, v := range entry.Data {
switch v := v.(type) {
case error:
// Otherwise errors are ignored by `encoding/json`
// https://github.com/Sirupsen/logrus/issues/137
data[k] = v.Error()
default:
data[k] = v
}
}
prefixFieldClashes(data)
timestampFormat := f.TimestampFormat
if timestampFormat == "" {
timestampFormat = DefaultTimestampFormat
}
if !f.DisableTimestamp {
data[f.FieldMap.resolve(FieldKeyTime)] = entry.Time.Format(timestampFormat)
}
data[f.FieldMap.resolve(FieldKeyMsg)] = entry.Message
data[f.FieldMap.resolve(FieldKeyLevel)] = entry.Level.String()
serialized, err := json.Marshal(data)
if err != nil {
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
}
return append(serialized, '\n'), nil
}

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@ -1,199 +0,0 @@
package logrus
import (
"encoding/json"
"errors"
"strings"
"testing"
)
func TestErrorNotLost(t *testing.T) {
formatter := &JSONFormatter{}
b, err := formatter.Format(WithField("error", errors.New("wild walrus")))
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
entry := make(map[string]interface{})
err = json.Unmarshal(b, &entry)
if err != nil {
t.Fatal("Unable to unmarshal formatted entry: ", err)
}
if entry["error"] != "wild walrus" {
t.Fatal("Error field not set")
}
}
func TestErrorNotLostOnFieldNotNamedError(t *testing.T) {
formatter := &JSONFormatter{}
b, err := formatter.Format(WithField("omg", errors.New("wild walrus")))
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
entry := make(map[string]interface{})
err = json.Unmarshal(b, &entry)
if err != nil {
t.Fatal("Unable to unmarshal formatted entry: ", err)
}
if entry["omg"] != "wild walrus" {
t.Fatal("Error field not set")
}
}
func TestFieldClashWithTime(t *testing.T) {
formatter := &JSONFormatter{}
b, err := formatter.Format(WithField("time", "right now!"))
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
entry := make(map[string]interface{})
err = json.Unmarshal(b, &entry)
if err != nil {
t.Fatal("Unable to unmarshal formatted entry: ", err)
}
if entry["fields.time"] != "right now!" {
t.Fatal("fields.time not set to original time field")
}
if entry["time"] != "0001-01-01T00:00:00Z" {
t.Fatal("time field not set to current time, was: ", entry["time"])
}
}
func TestFieldClashWithMsg(t *testing.T) {
formatter := &JSONFormatter{}
b, err := formatter.Format(WithField("msg", "something"))
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
entry := make(map[string]interface{})
err = json.Unmarshal(b, &entry)
if err != nil {
t.Fatal("Unable to unmarshal formatted entry: ", err)
}
if entry["fields.msg"] != "something" {
t.Fatal("fields.msg not set to original msg field")
}
}
func TestFieldClashWithLevel(t *testing.T) {
formatter := &JSONFormatter{}
b, err := formatter.Format(WithField("level", "something"))
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
entry := make(map[string]interface{})
err = json.Unmarshal(b, &entry)
if err != nil {
t.Fatal("Unable to unmarshal formatted entry: ", err)
}
if entry["fields.level"] != "something" {
t.Fatal("fields.level not set to original level field")
}
}
func TestJSONEntryEndsWithNewline(t *testing.T) {
formatter := &JSONFormatter{}
b, err := formatter.Format(WithField("level", "something"))
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
if b[len(b)-1] != '\n' {
t.Fatal("Expected JSON log entry to end with a newline")
}
}
func TestJSONMessageKey(t *testing.T) {
formatter := &JSONFormatter{
FieldMap: FieldMap{
FieldKeyMsg: "message",
},
}
b, err := formatter.Format(&Entry{Message: "oh hai"})
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
s := string(b)
if !(strings.Contains(s, "message") && strings.Contains(s, "oh hai")) {
t.Fatal("Expected JSON to format message key")
}
}
func TestJSONLevelKey(t *testing.T) {
formatter := &JSONFormatter{
FieldMap: FieldMap{
FieldKeyLevel: "somelevel",
},
}
b, err := formatter.Format(WithField("level", "something"))
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
s := string(b)
if !strings.Contains(s, "somelevel") {
t.Fatal("Expected JSON to format level key")
}
}
func TestJSONTimeKey(t *testing.T) {
formatter := &JSONFormatter{
FieldMap: FieldMap{
FieldKeyTime: "timeywimey",
},
}
b, err := formatter.Format(WithField("level", "something"))
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
s := string(b)
if !strings.Contains(s, "timeywimey") {
t.Fatal("Expected JSON to format time key")
}
}
func TestJSONDisableTimestamp(t *testing.T) {
formatter := &JSONFormatter{
DisableTimestamp: true,
}
b, err := formatter.Format(WithField("level", "something"))
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
s := string(b)
if strings.Contains(s, FieldKeyTime) {
t.Error("Did not prevent timestamp", s)
}
}
func TestJSONEnableTimestamp(t *testing.T) {
formatter := &JSONFormatter{}
b, err := formatter.Format(WithField("level", "something"))
if err != nil {
t.Fatal("Unable to format entry: ", err)
}
s := string(b)
if !strings.Contains(s, FieldKeyTime) {
t.Error("Timestamp not present", s)
}
}

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@ -1,308 +0,0 @@
package logrus
import (
"io"
"os"
"sync"
)
type Logger struct {
// The logs are `io.Copy`'d to this in a mutex. It's common to set this to a
// file, or leave it default which is `os.Stderr`. You can also set this to
// something more adventorous, such as logging to Kafka.
Out io.Writer
// Hooks for the logger instance. These allow firing events based on logging
// levels and log entries. For example, to send errors to an error tracking
// service, log to StatsD or dump the core on fatal errors.
Hooks LevelHooks
// All log entries pass through the formatter before logged to Out. The
// included formatters are `TextFormatter` and `JSONFormatter` for which
// TextFormatter is the default. In development (when a TTY is attached) it
// logs with colors, but to a file it wouldn't. You can easily implement your
// own that implements the `Formatter` interface, see the `README` or included
// formatters for examples.
Formatter Formatter
// The logging level the logger should log at. This is typically (and defaults
// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
// logged. `logrus.Debug` is useful in
Level Level
// Used to sync writing to the log. Locking is enabled by Default
mu MutexWrap
// Reusable empty entry
entryPool sync.Pool
}
type MutexWrap struct {
lock sync.Mutex
disabled bool
}
func (mw *MutexWrap) Lock() {
if !mw.disabled {
mw.lock.Lock()
}
}
func (mw *MutexWrap) Unlock() {
if !mw.disabled {
mw.lock.Unlock()
}
}
func (mw *MutexWrap) Disable() {
mw.disabled = true
}
// Creates a new logger. Configuration should be set by changing `Formatter`,
// `Out` and `Hooks` directly on the default logger instance. You can also just
// instantiate your own:
//
// var log = &Logger{
// Out: os.Stderr,
// Formatter: new(JSONFormatter),
// Hooks: make(LevelHooks),
// Level: logrus.DebugLevel,
// }
//
// It's recommended to make this a global instance called `log`.
func New() *Logger {
return &Logger{
Out: os.Stderr,
Formatter: new(TextFormatter),
Hooks: make(LevelHooks),
Level: InfoLevel,
}
}
func (logger *Logger) newEntry() *Entry {
entry, ok := logger.entryPool.Get().(*Entry)
if ok {
return entry
}
return NewEntry(logger)
}
func (logger *Logger) releaseEntry(entry *Entry) {
logger.entryPool.Put(entry)
}
// Adds a field to the log entry, note that it doesn't log until you call
// Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
// If you want multiple fields, use `WithFields`.
func (logger *Logger) WithField(key string, value interface{}) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithField(key, value)
}
// Adds a struct of fields to the log entry. All it does is call `WithField` for
// each `Field`.
func (logger *Logger) WithFields(fields Fields) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithFields(fields)
}
// Add an error as single field to the log entry. All it does is call
// `WithError` for the given `error`.
func (logger *Logger) WithError(err error) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithError(err)
}
func (logger *Logger) Debugf(format string, args ...interface{}) {
if logger.Level >= DebugLevel {
entry := logger.newEntry()
entry.Debugf(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Infof(format string, args ...interface{}) {
if logger.Level >= InfoLevel {
entry := logger.newEntry()
entry.Infof(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Printf(format string, args ...interface{}) {
entry := logger.newEntry()
entry.Printf(format, args...)
logger.releaseEntry(entry)
}
func (logger *Logger) Warnf(format string, args ...interface{}) {
if logger.Level >= WarnLevel {
entry := logger.newEntry()
entry.Warnf(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Warningf(format string, args ...interface{}) {
if logger.Level >= WarnLevel {
entry := logger.newEntry()
entry.Warnf(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Errorf(format string, args ...interface{}) {
if logger.Level >= ErrorLevel {
entry := logger.newEntry()
entry.Errorf(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Fatalf(format string, args ...interface{}) {
if logger.Level >= FatalLevel {
entry := logger.newEntry()
entry.Fatalf(format, args...)
logger.releaseEntry(entry)
}
Exit(1)
}
func (logger *Logger) Panicf(format string, args ...interface{}) {
if logger.Level >= PanicLevel {
entry := logger.newEntry()
entry.Panicf(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Debug(args ...interface{}) {
if logger.Level >= DebugLevel {
entry := logger.newEntry()
entry.Debug(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Info(args ...interface{}) {
if logger.Level >= InfoLevel {
entry := logger.newEntry()
entry.Info(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Print(args ...interface{}) {
entry := logger.newEntry()
entry.Info(args...)
logger.releaseEntry(entry)
}
func (logger *Logger) Warn(args ...interface{}) {
if logger.Level >= WarnLevel {
entry := logger.newEntry()
entry.Warn(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Warning(args ...interface{}) {
if logger.Level >= WarnLevel {
entry := logger.newEntry()
entry.Warn(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Error(args ...interface{}) {
if logger.Level >= ErrorLevel {
entry := logger.newEntry()
entry.Error(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Fatal(args ...interface{}) {
if logger.Level >= FatalLevel {
entry := logger.newEntry()
entry.Fatal(args...)
logger.releaseEntry(entry)
}
Exit(1)
}
func (logger *Logger) Panic(args ...interface{}) {
if logger.Level >= PanicLevel {
entry := logger.newEntry()
entry.Panic(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Debugln(args ...interface{}) {
if logger.Level >= DebugLevel {
entry := logger.newEntry()
entry.Debugln(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Infoln(args ...interface{}) {
if logger.Level >= InfoLevel {
entry := logger.newEntry()
entry.Infoln(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Println(args ...interface{}) {
entry := logger.newEntry()
entry.Println(args...)
logger.releaseEntry(entry)
}
func (logger *Logger) Warnln(args ...interface{}) {
if logger.Level >= WarnLevel {
entry := logger.newEntry()
entry.Warnln(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Warningln(args ...interface{}) {
if logger.Level >= WarnLevel {
entry := logger.newEntry()
entry.Warnln(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Errorln(args ...interface{}) {
if logger.Level >= ErrorLevel {
entry := logger.newEntry()
entry.Errorln(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Fatalln(args ...interface{}) {
if logger.Level >= FatalLevel {
entry := logger.newEntry()
entry.Fatalln(args...)
logger.releaseEntry(entry)
}
Exit(1)
}
func (logger *Logger) Panicln(args ...interface{}) {
if logger.Level >= PanicLevel {
entry := logger.newEntry()
entry.Panicln(args...)
logger.releaseEntry(entry)
}
}
//When file is opened with appending mode, it's safe to
//write concurrently to a file (within 4k message on Linux).
//In these cases user can choose to disable the lock.
func (logger *Logger) SetNoLock() {
logger.mu.Disable()
}

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@ -1,61 +0,0 @@
package logrus
import (
"os"
"testing"
)
// smallFields is a small size data set for benchmarking
var loggerFields = Fields{
"foo": "bar",
"baz": "qux",
"one": "two",
"three": "four",
}
func BenchmarkDummyLogger(b *testing.B) {
nullf, err := os.OpenFile("/dev/null", os.O_WRONLY, 0666)
if err != nil {
b.Fatalf("%v", err)
}
defer nullf.Close()
doLoggerBenchmark(b, nullf, &TextFormatter{DisableColors: true}, smallFields)
}
func BenchmarkDummyLoggerNoLock(b *testing.B) {
nullf, err := os.OpenFile("/dev/null", os.O_WRONLY|os.O_APPEND, 0666)
if err != nil {
b.Fatalf("%v", err)
}
defer nullf.Close()
doLoggerBenchmarkNoLock(b, nullf, &TextFormatter{DisableColors: true}, smallFields)
}
func doLoggerBenchmark(b *testing.B, out *os.File, formatter Formatter, fields Fields) {
logger := Logger{
Out: out,
Level: InfoLevel,
Formatter: formatter,
}
entry := logger.WithFields(fields)
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
entry.Info("aaa")
}
})
}
func doLoggerBenchmarkNoLock(b *testing.B, out *os.File, formatter Formatter, fields Fields) {
logger := Logger{
Out: out,
Level: InfoLevel,
Formatter: formatter,
}
logger.SetNoLock()
entry := logger.WithFields(fields)
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
entry.Info("aaa")
}
})
}

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@ -1,143 +0,0 @@
package logrus
import (
"fmt"
"log"
"strings"
)
// Fields type, used to pass to `WithFields`.
type Fields map[string]interface{}
// Level type
type Level uint8
// Convert the Level to a string. E.g. PanicLevel becomes "panic".
func (level Level) String() string {
switch level {
case DebugLevel:
return "debug"
case InfoLevel:
return "info"
case WarnLevel:
return "warning"
case ErrorLevel:
return "error"
case FatalLevel:
return "fatal"
case PanicLevel:
return "panic"
}
return "unknown"
}
// ParseLevel takes a string level and returns the Logrus log level constant.
func ParseLevel(lvl string) (Level, error) {
switch strings.ToLower(lvl) {
case "panic":
return PanicLevel, nil
case "fatal":
return FatalLevel, nil
case "error":
return ErrorLevel, nil
case "warn", "warning":
return WarnLevel, nil
case "info":
return InfoLevel, nil
case "debug":
return DebugLevel, nil
}
var l Level
return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
}
// A constant exposing all logging levels
var AllLevels = []Level{
PanicLevel,
FatalLevel,
ErrorLevel,
WarnLevel,
InfoLevel,
DebugLevel,
}
// These are the different logging levels. You can set the logging level to log
// on your instance of logger, obtained with `logrus.New()`.
const (
// PanicLevel level, highest level of severity. Logs and then calls panic with the
// message passed to Debug, Info, ...
PanicLevel Level = iota
// FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the
// logging level is set to Panic.
FatalLevel
// ErrorLevel level. Logs. Used for errors that should definitely be noted.
// Commonly used for hooks to send errors to an error tracking service.
ErrorLevel
// WarnLevel level. Non-critical entries that deserve eyes.
WarnLevel
// InfoLevel level. General operational entries about what's going on inside the
// application.
InfoLevel
// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
DebugLevel
)
// Won't compile if StdLogger can't be realized by a log.Logger
var (
_ StdLogger = &log.Logger{}
_ StdLogger = &Entry{}
_ StdLogger = &Logger{}
)
// StdLogger is what your logrus-enabled library should take, that way
// it'll accept a stdlib logger and a logrus logger. There's no standard
// interface, this is the closest we get, unfortunately.
type StdLogger interface {
Print(...interface{})
Printf(string, ...interface{})
Println(...interface{})
Fatal(...interface{})
Fatalf(string, ...interface{})
Fatalln(...interface{})
Panic(...interface{})
Panicf(string, ...interface{})
Panicln(...interface{})
}
// The FieldLogger interface generalizes the Entry and Logger types
type FieldLogger interface {
WithField(key string, value interface{}) *Entry
WithFields(fields Fields) *Entry
WithError(err error) *Entry
Debugf(format string, args ...interface{})
Infof(format string, args ...interface{})
Printf(format string, args ...interface{})
Warnf(format string, args ...interface{})
Warningf(format string, args ...interface{})
Errorf(format string, args ...interface{})
Fatalf(format string, args ...interface{})
Panicf(format string, args ...interface{})
Debug(args ...interface{})
Info(args ...interface{})
Print(args ...interface{})
Warn(args ...interface{})
Warning(args ...interface{})
Error(args ...interface{})
Fatal(args ...interface{})
Panic(args ...interface{})
Debugln(args ...interface{})
Infoln(args ...interface{})
Println(args ...interface{})
Warnln(args ...interface{})
Warningln(args ...interface{})
Errorln(args ...interface{})
Fatalln(args ...interface{})
Panicln(args ...interface{})
}

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@ -1,361 +0,0 @@
package logrus
import (
"bytes"
"encoding/json"
"strconv"
"strings"
"sync"
"testing"
"github.com/stretchr/testify/assert"
)
func LogAndAssertJSON(t *testing.T, log func(*Logger), assertions func(fields Fields)) {
var buffer bytes.Buffer
var fields Fields
logger := New()
logger.Out = &buffer
logger.Formatter = new(JSONFormatter)
log(logger)
err := json.Unmarshal(buffer.Bytes(), &fields)
assert.Nil(t, err)
assertions(fields)
}
func LogAndAssertText(t *testing.T, log func(*Logger), assertions func(fields map[string]string)) {
var buffer bytes.Buffer
logger := New()
logger.Out = &buffer
logger.Formatter = &TextFormatter{
DisableColors: true,
}
log(logger)
fields := make(map[string]string)
for _, kv := range strings.Split(buffer.String(), " ") {
if !strings.Contains(kv, "=") {
continue
}
kvArr := strings.Split(kv, "=")
key := strings.TrimSpace(kvArr[0])
val := kvArr[1]
if kvArr[1][0] == '"' {
var err error
val, err = strconv.Unquote(val)
assert.NoError(t, err)
}
fields[key] = val
}
assertions(fields)
}
func TestPrint(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Print("test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test")
assert.Equal(t, fields["level"], "info")
})
}
func TestInfo(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Info("test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test")
assert.Equal(t, fields["level"], "info")
})
}
func TestWarn(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Warn("test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test")
assert.Equal(t, fields["level"], "warning")
})
}
func TestInfolnShouldAddSpacesBetweenStrings(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Infoln("test", "test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test test")
})
}
func TestInfolnShouldAddSpacesBetweenStringAndNonstring(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Infoln("test", 10)
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test 10")
})
}
func TestInfolnShouldAddSpacesBetweenTwoNonStrings(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Infoln(10, 10)
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "10 10")
})
}
func TestInfoShouldAddSpacesBetweenTwoNonStrings(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Infoln(10, 10)
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "10 10")
})
}
func TestInfoShouldNotAddSpacesBetweenStringAndNonstring(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Info("test", 10)
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test10")
})
}
func TestInfoShouldNotAddSpacesBetweenStrings(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Info("test", "test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "testtest")
})
}
func TestWithFieldsShouldAllowAssignments(t *testing.T) {
var buffer bytes.Buffer
var fields Fields
logger := New()
logger.Out = &buffer
logger.Formatter = new(JSONFormatter)
localLog := logger.WithFields(Fields{
"key1": "value1",
})
localLog.WithField("key2", "value2").Info("test")
err := json.Unmarshal(buffer.Bytes(), &fields)
assert.Nil(t, err)
assert.Equal(t, "value2", fields["key2"])
assert.Equal(t, "value1", fields["key1"])
buffer = bytes.Buffer{}
fields = Fields{}
localLog.Info("test")
err = json.Unmarshal(buffer.Bytes(), &fields)
assert.Nil(t, err)
_, ok := fields["key2"]
assert.Equal(t, false, ok)
assert.Equal(t, "value1", fields["key1"])
}
func TestUserSuppliedFieldDoesNotOverwriteDefaults(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.WithField("msg", "hello").Info("test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test")
})
}
func TestUserSuppliedMsgFieldHasPrefix(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.WithField("msg", "hello").Info("test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test")
assert.Equal(t, fields["fields.msg"], "hello")
})
}
func TestUserSuppliedTimeFieldHasPrefix(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.WithField("time", "hello").Info("test")
}, func(fields Fields) {
assert.Equal(t, fields["fields.time"], "hello")
})
}
func TestUserSuppliedLevelFieldHasPrefix(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.WithField("level", 1).Info("test")
}, func(fields Fields) {
assert.Equal(t, fields["level"], "info")
assert.Equal(t, fields["fields.level"], 1.0) // JSON has floats only
})
}
func TestDefaultFieldsAreNotPrefixed(t *testing.T) {
LogAndAssertText(t, func(log *Logger) {
ll := log.WithField("herp", "derp")
ll.Info("hello")
ll.Info("bye")
}, func(fields map[string]string) {
for _, fieldName := range []string{"fields.level", "fields.time", "fields.msg"} {
if _, ok := fields[fieldName]; ok {
t.Fatalf("should not have prefixed %q: %v", fieldName, fields)
}
}
})
}
func TestDoubleLoggingDoesntPrefixPreviousFields(t *testing.T) {
var buffer bytes.Buffer
var fields Fields
logger := New()
logger.Out = &buffer
logger.Formatter = new(JSONFormatter)
llog := logger.WithField("context", "eating raw fish")
llog.Info("looks delicious")
err := json.Unmarshal(buffer.Bytes(), &fields)
assert.NoError(t, err, "should have decoded first message")
assert.Equal(t, len(fields), 4, "should only have msg/time/level/context fields")
assert.Equal(t, fields["msg"], "looks delicious")
assert.Equal(t, fields["context"], "eating raw fish")
buffer.Reset()
llog.Warn("omg it is!")
err = json.Unmarshal(buffer.Bytes(), &fields)
assert.NoError(t, err, "should have decoded second message")
assert.Equal(t, len(fields), 4, "should only have msg/time/level/context fields")
assert.Equal(t, fields["msg"], "omg it is!")
assert.Equal(t, fields["context"], "eating raw fish")
assert.Nil(t, fields["fields.msg"], "should not have prefixed previous `msg` entry")
}
func TestConvertLevelToString(t *testing.T) {
assert.Equal(t, "debug", DebugLevel.String())
assert.Equal(t, "info", InfoLevel.String())
assert.Equal(t, "warning", WarnLevel.String())
assert.Equal(t, "error", ErrorLevel.String())
assert.Equal(t, "fatal", FatalLevel.String())
assert.Equal(t, "panic", PanicLevel.String())
}
func TestParseLevel(t *testing.T) {
l, err := ParseLevel("panic")
assert.Nil(t, err)
assert.Equal(t, PanicLevel, l)
l, err = ParseLevel("PANIC")
assert.Nil(t, err)
assert.Equal(t, PanicLevel, l)
l, err = ParseLevel("fatal")
assert.Nil(t, err)
assert.Equal(t, FatalLevel, l)
l, err = ParseLevel("FATAL")
assert.Nil(t, err)
assert.Equal(t, FatalLevel, l)
l, err = ParseLevel("error")
assert.Nil(t, err)
assert.Equal(t, ErrorLevel, l)
l, err = ParseLevel("ERROR")
assert.Nil(t, err)
assert.Equal(t, ErrorLevel, l)
l, err = ParseLevel("warn")
assert.Nil(t, err)
assert.Equal(t, WarnLevel, l)
l, err = ParseLevel("WARN")
assert.Nil(t, err)
assert.Equal(t, WarnLevel, l)
l, err = ParseLevel("warning")
assert.Nil(t, err)
assert.Equal(t, WarnLevel, l)
l, err = ParseLevel("WARNING")
assert.Nil(t, err)
assert.Equal(t, WarnLevel, l)
l, err = ParseLevel("info")
assert.Nil(t, err)
assert.Equal(t, InfoLevel, l)
l, err = ParseLevel("INFO")
assert.Nil(t, err)
assert.Equal(t, InfoLevel, l)
l, err = ParseLevel("debug")
assert.Nil(t, err)
assert.Equal(t, DebugLevel, l)
l, err = ParseLevel("DEBUG")
assert.Nil(t, err)
assert.Equal(t, DebugLevel, l)
l, err = ParseLevel("invalid")
assert.Equal(t, "not a valid logrus Level: \"invalid\"", err.Error())
}
func TestGetSetLevelRace(t *testing.T) {
wg := sync.WaitGroup{}
for i := 0; i < 100; i++ {
wg.Add(1)
go func(i int) {
defer wg.Done()
if i%2 == 0 {
SetLevel(InfoLevel)
} else {
GetLevel()
}
}(i)
}
wg.Wait()
}
func TestLoggingRace(t *testing.T) {
logger := New()
var wg sync.WaitGroup
wg.Add(100)
for i := 0; i < 100; i++ {
go func() {
logger.Info("info")
wg.Done()
}()
}
wg.Wait()
}
// Compile test
func TestLogrusInterface(t *testing.T) {
var buffer bytes.Buffer
fn := func(l FieldLogger) {
b := l.WithField("key", "value")
b.Debug("Test")
}
// test logger
logger := New()
logger.Out = &buffer
fn(logger)
// test Entry
e := logger.WithField("another", "value")
fn(e)
}

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@ -1,8 +0,0 @@
// +build appengine
package logrus
// IsTerminal returns true if stderr's file descriptor is a terminal.
func IsTerminal() bool {
return true
}

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@ -1,10 +0,0 @@
// +build darwin freebsd openbsd netbsd dragonfly
// +build !appengine
package logrus
import "syscall"
const ioctlReadTermios = syscall.TIOCGETA
type Termios syscall.Termios

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@ -1,22 +0,0 @@
// Based on ssh/terminal:
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux darwin freebsd openbsd netbsd dragonfly
// +build !appengine
package logrus
import (
"syscall"
"unsafe"
)
// IsTerminal returns true if stderr's file descriptor is a terminal.
func IsTerminal() bool {
fd := syscall.Stderr
var termios Termios
_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
return err == 0
}

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@ -1,15 +0,0 @@
// +build solaris,!appengine
package logrus
import (
"os"
"golang.org/x/sys/unix"
)
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal() bool {
_, err := unix.IoctlGetTermios(int(os.Stdout.Fd()), unix.TCGETA)
return err == nil
}

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@ -1,27 +0,0 @@
// Based on ssh/terminal:
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows,!appengine
package logrus
import (
"syscall"
"unsafe"
)
var kernel32 = syscall.NewLazyDLL("kernel32.dll")
var (
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
)
// IsTerminal returns true if stderr's file descriptor is a terminal.
func IsTerminal() bool {
fd := syscall.Stderr
var st uint32
r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0)
return r != 0 && e == 0
}

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@ -1,166 +0,0 @@
package logrus
import (
"bytes"
"fmt"
"runtime"
"sort"
"strings"
"time"
)
const (
nocolor = 0
red = 31
green = 32
yellow = 33
blue = 34
gray = 37
)
var (
baseTimestamp time.Time
isTerminal bool
)
func init() {
baseTimestamp = time.Now()
isTerminal = IsTerminal()
}
type TextFormatter struct {
// Set to true to bypass checking for a TTY before outputting colors.
ForceColors bool
// Force disabling colors.
DisableColors bool
// Disable timestamp logging. useful when output is redirected to logging
// system that already adds timestamps.
DisableTimestamp bool
// Enable logging the full timestamp when a TTY is attached instead of just
// the time passed since beginning of execution.
FullTimestamp bool
// TimestampFormat to use for display when a full timestamp is printed
TimestampFormat string
// The fields are sorted by default for a consistent output. For applications
// that log extremely frequently and don't use the JSON formatter this may not
// be desired.
DisableSorting bool
}
func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
var b *bytes.Buffer
keys := make([]string, 0, len(entry.Data))
for k := range entry.Data {
keys = append(keys, k)
}
if !f.DisableSorting {
sort.Strings(keys)
}
if entry.Buffer != nil {
b = entry.Buffer
} else {
b = &bytes.Buffer{}
}
prefixFieldClashes(entry.Data)
isColorTerminal := isTerminal && (runtime.GOOS != "windows")
isColored := (f.ForceColors || isColorTerminal) && !f.DisableColors
timestampFormat := f.TimestampFormat
if timestampFormat == "" {
timestampFormat = DefaultTimestampFormat
}
if isColored {
f.printColored(b, entry, keys, timestampFormat)
} else {
if !f.DisableTimestamp {
f.appendKeyValue(b, "time", entry.Time.Format(timestampFormat))
}
f.appendKeyValue(b, "level", entry.Level.String())
if entry.Message != "" {
f.appendKeyValue(b, "msg", entry.Message)
}
for _, key := range keys {
f.appendKeyValue(b, key, entry.Data[key])
}
}
b.WriteByte('\n')
return b.Bytes(), nil
}
func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, timestampFormat string) {
var levelColor int
switch entry.Level {
case DebugLevel:
levelColor = gray
case WarnLevel:
levelColor = yellow
case ErrorLevel, FatalLevel, PanicLevel:
levelColor = red
default:
levelColor = blue
}
levelText := strings.ToUpper(entry.Level.String())[0:4]
if f.DisableTimestamp {
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m %-44s ", levelColor, levelText, entry.Message)
} else if !f.FullTimestamp {
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), entry.Message)
} else {
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), entry.Message)
}
for _, k := range keys {
v := entry.Data[k]
fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=", levelColor, k)
f.appendValue(b, v)
}
}
func needsQuoting(text string) bool {
for _, ch := range text {
if !((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch <= '9') ||
ch == '-' || ch == '.') {
return true
}
}
return false
}
func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
b.WriteString(key)
b.WriteByte('=')
f.appendValue(b, value)
b.WriteByte(' ')
}
func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
switch value := value.(type) {
case string:
if !needsQuoting(value) {
b.WriteString(value)
} else {
fmt.Fprintf(b, "%q", value)
}
case error:
errmsg := value.Error()
if !needsQuoting(errmsg) {
b.WriteString(errmsg)
} else {
fmt.Fprintf(b, "%q", errmsg)
}
default:
fmt.Fprint(b, value)
}
}

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@ -1,71 +0,0 @@
package logrus
import (
"bytes"
"errors"
"testing"
"time"
"strings"
)
func TestQuoting(t *testing.T) {
tf := &TextFormatter{DisableColors: true}
checkQuoting := func(q bool, value interface{}) {
b, _ := tf.Format(WithField("test", value))
idx := bytes.Index(b, ([]byte)("test="))
cont := bytes.Contains(b[idx+5:], []byte{'"'})
if cont != q {
if q {
t.Errorf("quoting expected for: %#v", value)
} else {
t.Errorf("quoting not expected for: %#v", value)
}
}
}
checkQuoting(false, "abcd")
checkQuoting(false, "v1.0")
checkQuoting(false, "1234567890")
checkQuoting(true, "/foobar")
checkQuoting(true, "x y")
checkQuoting(true, "x,y")
checkQuoting(false, errors.New("invalid"))
checkQuoting(true, errors.New("invalid argument"))
}
func TestTimestampFormat(t *testing.T) {
checkTimeStr := func(format string) {
customFormatter := &TextFormatter{DisableColors: true, TimestampFormat: format}
customStr, _ := customFormatter.Format(WithField("test", "test"))
timeStart := bytes.Index(customStr, ([]byte)("time="))
timeEnd := bytes.Index(customStr, ([]byte)("level="))
timeStr := customStr[timeStart+5 : timeEnd-1]
if timeStr[0] == '"' && timeStr[len(timeStr)-1] == '"' {
timeStr = timeStr[1 : len(timeStr)-1]
}
if format == "" {
format = time.RFC3339
}
_, e := time.Parse(format, (string)(timeStr))
if e != nil {
t.Errorf("time string \"%s\" did not match provided time format \"%s\": %s", timeStr, format, e)
}
}
checkTimeStr("2006-01-02T15:04:05.000000000Z07:00")
checkTimeStr("Mon Jan _2 15:04:05 2006")
checkTimeStr("")
}
func TestDisableTimestampWithColoredOutput(t *testing.T) {
tf := &TextFormatter{DisableTimestamp: true, ForceColors: true}
b, _ := tf.Format(WithField("test", "test"))
if strings.Contains(string(b), "[0000]") {
t.Error("timestamp not expected when DisableTimestamp is true")
}
}
// TODO add tests for sorting etc., this requires a parser for the text
// formatter output.

View File

@ -1,53 +0,0 @@
package logrus
import (
"bufio"
"io"
"runtime"
)
func (logger *Logger) Writer() *io.PipeWriter {
return logger.WriterLevel(InfoLevel)
}
func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
reader, writer := io.Pipe()
var printFunc func(args ...interface{})
switch level {
case DebugLevel:
printFunc = logger.Debug
case InfoLevel:
printFunc = logger.Info
case WarnLevel:
printFunc = logger.Warn
case ErrorLevel:
printFunc = logger.Error
case FatalLevel:
printFunc = logger.Fatal
case PanicLevel:
printFunc = logger.Panic
default:
printFunc = logger.Print
}
go logger.writerScanner(reader, printFunc)
runtime.SetFinalizer(writer, writerFinalizer)
return writer
}
func (logger *Logger) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
scanner := bufio.NewScanner(reader)
for scanner.Scan() {
printFunc(scanner.Text())
}
if err := scanner.Err(); err != nil {
logger.Errorf("Error while reading from Writer: %s", err)
}
reader.Close()
}
func writerFinalizer(writer *io.PipeWriter) {
writer.Close()
}

View File

@ -1,5 +1,5 @@
# dugong
Logging utilities for [logrus](https://github.com/Sirupsen/logrus).
Logging utilities for [logrus](https://github.com/sirupsen/logrus).
To develop on this library, you need logrus on your GOPATH:

View File

@ -1,3 +1,50 @@
# 1.0.3
* Replace example files with testable examples
# 1.0.2
* bug: quote non-string values in text formatter (#583)
* Make (*Logger) SetLevel a public method
# 1.0.1
* bug: fix escaping in text formatter (#575)
# 1.0.0
* Officially changed name to lower-case
* bug: colors on Windows 10 (#541)
* bug: fix race in accessing level (#512)
# 0.11.5
* feature: add writer and writerlevel to entry (#372)
# 0.11.4
* bug: fix undefined variable on solaris (#493)
# 0.11.3
* formatter: configure quoting of empty values (#484)
* formatter: configure quoting character (default is `"`) (#484)
* bug: fix not importing io correctly in non-linux environments (#481)
# 0.11.2
* bug: fix windows terminal detection (#476)
# 0.11.1
* bug: fix tty detection with custom out (#471)
# 0.11.0
* performance: Use bufferpool to allocate (#370)
* terminal: terminal detection for app-engine (#343)
* feature: exit handler (#375)
# 0.10.0
* feature: Add a test hook (#180)

View File

@ -1,17 +1,24 @@
# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>&nbsp;[![Build Status](https://travis-ci.org/Sirupsen/logrus.svg?branch=master)](https://travis-ci.org/Sirupsen/logrus)&nbsp;[![GoDoc](https://godoc.org/github.com/Sirupsen/logrus?status.svg)](https://godoc.org/github.com/Sirupsen/logrus)
**Seeing weird case-sensitive problems?** See [this
issue](https://github.com/sirupsen/logrus/issues/451#issuecomment-264332021).
This change has been reverted. I apologize for causing this. I greatly
underestimated the impact this would have. Logrus strives for stability and
backwards compatibility and failed to provide that.
# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>&nbsp;[![Build Status](https://travis-ci.org/sirupsen/logrus.svg?branch=master)](https://travis-ci.org/sirupsen/logrus)&nbsp;[![GoDoc](https://godoc.org/github.com/sirupsen/logrus?status.svg)](https://godoc.org/github.com/sirupsen/logrus)
Logrus is a structured logger for Go (golang), completely API compatible with
the standard library logger. [Godoc][godoc]. **Please note the Logrus API is not
yet stable (pre 1.0). Logrus itself is completely stable and has been used in
many large deployments. The core API is unlikely to change much but please
version control your Logrus to make sure you aren't fetching latest `master` on
every build.**
the standard library logger.
**Seeing weird case-sensitive problems?** It's in the past been possible to
import Logrus as both upper- and lower-case. Due to the Go package environment,
this caused issues in the community and we needed a standard. Some environments
experienced problems with the upper-case variant, so the lower-case was decided.
Everything using `logrus` will need to use the lower-case:
`github.com/sirupsen/logrus`. Any package that isn't, should be changed.
To fix Glide, see [these
comments](https://github.com/sirupsen/logrus/issues/553#issuecomment-306591437).
For an in-depth explanation of the casing issue, see [this
comment](https://github.com/sirupsen/logrus/issues/570#issuecomment-313933276).
**Are you interested in assisting in maintaining Logrus?** Currently I have a
lot of obligations, and I am unable to provide Logrus with the maintainership it
needs. If you'd like to help, please reach out to me at `simon at author's
username dot com`.
Nicely color-coded in development (when a TTY is attached, otherwise just
plain text):
@ -52,6 +59,12 @@ time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x20822
exit status 1
```
#### Case-sensitivity
The organization's name was changed to lower-case--and this will not be changed
back. If you are getting import conflicts due to case sensitivity, please use
the lower-case import: `github.com/sirupsen/logrus`.
#### Example
The simplest way to use Logrus is simply the package-level exported logger:
@ -60,7 +73,7 @@ The simplest way to use Logrus is simply the package-level exported logger:
package main
import (
log "github.com/Sirupsen/logrus"
log "github.com/sirupsen/logrus"
)
func main() {
@ -71,7 +84,7 @@ func main() {
```
Note that it's completely api-compatible with the stdlib logger, so you can
replace your `log` imports everywhere with `log "github.com/Sirupsen/logrus"`
replace your `log` imports everywhere with `log "github.com/sirupsen/logrus"`
and you'll now have the flexibility of Logrus. You can customize it all you
want:
@ -80,14 +93,15 @@ package main
import (
"os"
log "github.com/Sirupsen/logrus"
log "github.com/sirupsen/logrus"
)
func init() {
// Log as JSON instead of the default ASCII formatter.
log.SetFormatter(&log.JSONFormatter{})
// Output to stdout instead of the default stderr, could also be a file.
// Output to stdout instead of the default stderr
// Can be any io.Writer, see below for File example
log.SetOutput(os.Stdout)
// Only log the warning severity or above.
@ -129,7 +143,8 @@ application, you can also create an instance of the `logrus` Logger:
package main
import (
"github.com/Sirupsen/logrus"
"os"
"github.com/sirupsen/logrus"
)
// Create a new instance of the logger. You can have any number of instances.
@ -138,7 +153,15 @@ var log = logrus.New()
func main() {
// The API for setting attributes is a little different than the package level
// exported logger. See Godoc.
log.Out = os.Stderr
log.Out = os.Stdout
// You could set this to any `io.Writer` such as a file
// file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY, 0666)
// if err == nil {
// log.Out = file
// } else {
// log.Info("Failed to log to file, using default stderr")
// }
log.WithFields(logrus.Fields{
"animal": "walrus",
@ -149,7 +172,7 @@ func main() {
#### Fields
Logrus encourages careful, structured logging though logging fields instead of
Logrus encourages careful, structured logging through logging fields instead of
long, unparseable error messages. For example, instead of: `log.Fatalf("Failed
to send event %s to topic %s with key %d")`, you should log the much more
discoverable:
@ -171,6 +194,20 @@ In general, with Logrus using any of the `printf`-family functions should be
seen as a hint you should add a field, however, you can still use the
`printf`-family functions with Logrus.
#### Default Fields
Often it's helpful to have fields _always_ attached to log statements in an
application or parts of one. For example, you may want to always log the
`request_id` and `user_ip` in the context of a request. Instead of writing
`log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})` on
every line, you can create a `logrus.Entry` to pass around instead:
```go
requestLogger := log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})
requestLogger.Info("something happened on that request") # will log request_id and user_ip
requestLogger.Warn("something not great happened")
```
#### Hooks
You can add hooks for logging levels. For example to send errors to an exception
@ -182,9 +219,9 @@ Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in
```go
import (
log "github.com/Sirupsen/logrus"
log "github.com/sirupsen/logrus"
"gopkg.in/gemnasium/logrus-airbrake-hook.v2" // the package is named "aibrake"
logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
logrus_syslog "github.com/sirupsen/logrus/hooks/syslog"
"log/syslog"
)
@ -206,42 +243,54 @@ Note: Syslog hook also support connecting to local syslog (Ex. "/dev/log" or "/v
| Hook | Description |
| ----- | ----------- |
| [Airbrake](https://github.com/gemnasium/logrus-airbrake-hook) | Send errors to the Airbrake API V3. Uses the official [`gobrake`](https://github.com/airbrake/gobrake) behind the scenes. |
| [Airbrake "legacy"](https://github.com/gemnasium/logrus-airbrake-legacy-hook) | Send errors to an exception tracking service compatible with the Airbrake API V2. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. |
| [Papertrail](https://github.com/polds/logrus-papertrail-hook) | Send errors to the [Papertrail](https://papertrailapp.com) hosted logging service via UDP. |
| [Syslog](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. |
| [Bugsnag](https://github.com/Shopify/logrus-bugsnag/blob/master/bugsnag.go) | Send errors to the Bugsnag exception tracking service. |
| [Sentry](https://github.com/evalphobia/logrus_sentry) | Send errors to the Sentry error logging and aggregation service. |
| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. |
| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) |
| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. |
| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` |
| [Graylog](https://github.com/gemnasium/logrus-graylog-hook) | Hook for logging to [Graylog](http://graylog2.org/) |
| [Raygun](https://github.com/squirkle/logrus-raygun-hook) | Hook for logging to [Raygun.io](http://raygun.io/) |
| [LFShook](https://github.com/rifflock/lfshook) | Hook for logging to the local filesystem |
| [Honeybadger](https://github.com/agonzalezro/logrus_honeybadger) | Hook for sending exceptions to Honeybadger |
| [Mail](https://github.com/zbindenren/logrus_mail) | Hook for sending exceptions via mail |
| [Rollrus](https://github.com/heroku/rollrus) | Hook for sending errors to rollbar |
| [Fluentd](https://github.com/evalphobia/logrus_fluent) | Hook for logging to fluentd |
| [Mongodb](https://github.com/weekface/mgorus) | Hook for logging to mongodb |
| [Influxus] (http://github.com/vlad-doru/influxus) | Hook for concurrently logging to [InfluxDB] (http://influxdata.com/) |
| [InfluxDB](https://github.com/Abramovic/logrus_influxdb) | Hook for logging to influxdb |
| [Octokit](https://github.com/dorajistyle/logrus-octokit-hook) | Hook for logging to github via octokit |
| [DeferPanic](https://github.com/deferpanic/dp-logrus) | Hook for logging to DeferPanic |
| [Redis-Hook](https://github.com/rogierlommers/logrus-redis-hook) | Hook for logging to a ELK stack (through Redis) |
| [Airbrake](https://github.com/gemnasium/logrus-airbrake-hook) | Send errors to the Airbrake API V3. Uses the official [`gobrake`](https://github.com/airbrake/gobrake) behind the scenes. |
| [Amazon Kinesis](https://github.com/evalphobia/logrus_kinesis) | Hook for logging to [Amazon Kinesis](https://aws.amazon.com/kinesis/) |
| [Amqp-Hook](https://github.com/vladoatanasov/logrus_amqp) | Hook for logging to Amqp broker (Like RabbitMQ) |
| [KafkaLogrus](https://github.com/goibibo/KafkaLogrus) | Hook for logging to kafka |
| [Typetalk](https://github.com/dragon3/logrus-typetalk-hook) | Hook for logging to [Typetalk](https://www.typetalk.in/) |
| [AzureTableHook](https://github.com/kpfaulkner/azuretablehook/) | Hook for logging to Azure Table Storage|
| [Bugsnag](https://github.com/Shopify/logrus-bugsnag/blob/master/bugsnag.go) | Send errors to the Bugsnag exception tracking service. |
| [DeferPanic](https://github.com/deferpanic/dp-logrus) | Hook for logging to DeferPanic |
| [Discordrus](https://github.com/kz/discordrus) | Hook for logging to [Discord](https://discordapp.com/) |
| [ElasticSearch](https://github.com/sohlich/elogrus) | Hook for logging to ElasticSearch|
| [Sumorus](https://github.com/doublefree/sumorus) | Hook for logging to [SumoLogic](https://www.sumologic.com/)|
| [Scribe](https://github.com/sagar8192/logrus-scribe-hook) | Hook for logging to [Scribe](https://github.com/facebookarchive/scribe)|
| [Logstash](https://github.com/bshuster-repo/logrus-logstash-hook) | Hook for logging to [Logstash](https://www.elastic.co/products/logstash) |
| [logz.io](https://github.com/ripcurld00d/logrus-logzio-hook) | Hook for logging to [logz.io](https://logz.io), a Log as a Service using Logstash |
| [Logmatic.io](https://github.com/logmatic/logmatic-go) | Hook for logging to [Logmatic.io](http://logmatic.io/) |
| [Pushover](https://github.com/toorop/logrus_pushover) | Send error via [Pushover](https://pushover.net) |
| [PostgreSQL](https://github.com/gemnasium/logrus-postgresql-hook) | Send logs to [PostgreSQL](http://postgresql.org) |
| [Firehose](https://github.com/beaubrewer/logrus_firehose) | Hook for logging to [Amazon Firehose](https://aws.amazon.com/kinesis/firehose/)
| [Fluentd](https://github.com/evalphobia/logrus_fluent) | Hook for logging to fluentd |
| [Go-Slack](https://github.com/multiplay/go-slack) | Hook for logging to [Slack](https://slack.com) |
| [Graylog](https://github.com/gemnasium/logrus-graylog-hook) | Hook for logging to [Graylog](http://graylog2.org/) |
| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. |
| [Honeybadger](https://github.com/agonzalezro/logrus_honeybadger) | Hook for sending exceptions to Honeybadger |
| [InfluxDB](https://github.com/Abramovic/logrus_influxdb) | Hook for logging to influxdb |
| [Influxus](http://github.com/vlad-doru/influxus) | Hook for concurrently logging to [InfluxDB](http://influxdata.com/) |
| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` |
| [KafkaLogrus](https://github.com/tracer0tong/kafkalogrus) | Hook for logging to Kafka |
| [LFShook](https://github.com/rifflock/lfshook) | Hook for logging to the local filesystem |
| [Logentries](https://github.com/jcftang/logentriesrus) | Hook for logging to [Logentries](https://logentries.com/) |
| [Logentrus](https://github.com/puddingfactory/logentrus) | Hook for logging to [Logentries](https://logentries.com/) |
| [Logmatic.io](https://github.com/logmatic/logmatic-go) | Hook for logging to [Logmatic.io](http://logmatic.io/) |
| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) |
| [Logstash](https://github.com/bshuster-repo/logrus-logstash-hook) | Hook for logging to [Logstash](https://www.elastic.co/products/logstash) |
| [Mail](https://github.com/zbindenren/logrus_mail) | Hook for sending exceptions via mail |
| [Mattermost](https://github.com/shuLhan/mattermost-integration/tree/master/hooks/logrus) | Hook for logging to [Mattermost](https://mattermost.com/) |
| [Mongodb](https://github.com/weekface/mgorus) | Hook for logging to mongodb |
| [NATS-Hook](https://github.com/rybit/nats_logrus_hook) | Hook for logging to [NATS](https://nats.io) |
| [Octokit](https://github.com/dorajistyle/logrus-octokit-hook) | Hook for logging to github via octokit |
| [Papertrail](https://github.com/polds/logrus-papertrail-hook) | Send errors to the [Papertrail](https://papertrailapp.com) hosted logging service via UDP. |
| [PostgreSQL](https://github.com/gemnasium/logrus-postgresql-hook) | Send logs to [PostgreSQL](http://postgresql.org) |
| [Pushover](https://github.com/toorop/logrus_pushover) | Send error via [Pushover](https://pushover.net) |
| [Raygun](https://github.com/squirkle/logrus-raygun-hook) | Hook for logging to [Raygun.io](http://raygun.io/) |
| [Redis-Hook](https://github.com/rogierlommers/logrus-redis-hook) | Hook for logging to a ELK stack (through Redis) |
| [Rollrus](https://github.com/heroku/rollrus) | Hook for sending errors to rollbar |
| [Scribe](https://github.com/sagar8192/logrus-scribe-hook) | Hook for logging to [Scribe](https://github.com/facebookarchive/scribe)|
| [Sentry](https://github.com/evalphobia/logrus_sentry) | Send errors to the Sentry error logging and aggregation service. |
| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. |
| [Stackdriver](https://github.com/knq/sdhook) | Hook for logging to [Google Stackdriver](https://cloud.google.com/logging/) |
| [Sumorus](https://github.com/doublefree/sumorus) | Hook for logging to [SumoLogic](https://www.sumologic.com/)|
| [Syslog](https://github.com/sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. |
| [Syslog TLS](https://github.com/shinji62/logrus-syslog-ng) | Send errors to remote syslog server with TLS support. |
| [Telegram](https://github.com/rossmcdonald/telegram_hook) | Hook for logging errors to [Telegram](https://telegram.org/) |
| [TraceView](https://github.com/evalphobia/logrus_appneta) | Hook for logging to [AppNeta TraceView](https://www.appneta.com/products/traceview/) |
| [Typetalk](https://github.com/dragon3/logrus-typetalk-hook) | Hook for logging to [Typetalk](https://www.typetalk.in/) |
| [logz.io](https://github.com/ripcurld00d/logrus-logzio-hook) | Hook for logging to [logz.io](https://logz.io), a Log as a Service using Logstash |
| [SQS-Hook](https://github.com/tsarpaul/logrus_sqs) | Hook for logging to [Amazon Simple Queue Service (SQS)](https://aws.amazon.com/sqs/) |
#### Level logging
@ -290,7 +339,7 @@ could do:
```go
import (
log "github.com/Sirupsen/logrus"
log "github.com/sirupsen/logrus"
)
init() {
@ -317,11 +366,15 @@ The built-in logging formatters are:
without colors.
* *Note:* to force colored output when there is no TTY, set the `ForceColors`
field to `true`. To force no colored output even if there is a TTY set the
`DisableColors` field to `true`
`DisableColors` field to `true`. For Windows, see
[github.com/mattn/go-colorable](https://github.com/mattn/go-colorable).
* All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#TextFormatter).
* `logrus.JSONFormatter`. Logs fields as JSON.
* All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#JSONFormatter).
Third party logging formatters:
* [`FluentdFormatter`](https://github.com/joonix/log). Formats entries that can by parsed by Kubernetes and Google Container Engine.
* [`logstash`](https://github.com/bshuster-repo/logrus-logstash-hook). Logs fields as [Logstash](http://logstash.net) Events.
* [`prefixed`](https://github.com/x-cray/logrus-prefixed-formatter). Displays log entry source along with alternative layout.
* [`zalgo`](https://github.com/aybabtme/logzalgo). Invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦.
@ -367,6 +420,18 @@ srv := http.Server{
Each line written to that writer will be printed the usual way, using formatters
and hooks. The level for those entries is `info`.
This means that we can override the standard library logger easily:
```go
logger := logrus.New()
logger.Formatter = &logrus.JSONFormatter{}
// Use logrus for standard log output
// Note that `log` here references stdlib's log
// Not logrus imported under the name `log`.
log.SetOutput(logger.Writer())
```
#### Rotation
Log rotation is not provided with Logrus. Log rotation should be done by an
@ -378,7 +443,7 @@ entries. It should not be a feature of the application-level logger.
| Tool | Description |
| ---- | ----------- |
|[Logrus Mate](https://github.com/gogap/logrus_mate)|Logrus mate is a tool for Logrus to manage loggers, you can initial logger's level, hook and formatter by config file, the logger will generated with different config at different environment.|
|[Logrus Viper Helper](https://github.com/heirko/go-contrib/tree/master/logrusHelper)|An Helper arround Logrus to wrap with spf13/Viper to load configuration with fangs! And to simplify Logrus configuration use some behavior of [Logrus Mate](https://github.com/gogap/logrus_mate). [sample](https://github.com/heirko/iris-contrib/blob/master/middleware/logrus-logger/example) |
|[Logrus Viper Helper](https://github.com/heirko/go-contrib/tree/master/logrusHelper)|An Helper around Logrus to wrap with spf13/Viper to load configuration with fangs! And to simplify Logrus configuration use some behavior of [Logrus Mate](https://github.com/gogap/logrus_mate). [sample](https://github.com/heirko/iris-contrib/blob/master/middleware/logrus-logger/example) |
#### Testing
@ -388,15 +453,24 @@ Logrus has a built in facility for asserting the presence of log messages. This
* a test logger (`test.NewNullLogger`) that just records log messages (and does not output any):
```go
logger, hook := NewNullLogger()
logger.Error("Hello error")
import(
"github.com/sirupsen/logrus"
"github.com/sirupsen/logrus/hooks/test"
"github.com/stretchr/testify/assert"
"testing"
)
assert.Equal(1, len(hook.Entries))
assert.Equal(logrus.ErrorLevel, hook.LastEntry().Level)
assert.Equal("Hello error", hook.LastEntry().Message)
func TestSomething(t*testing.T){
logger, hook := test.NewNullLogger()
logger.Error("Helloerror")
hook.Reset()
assert.Nil(hook.LastEntry())
assert.Equal(t, 1, len(hook.Entries))
assert.Equal(t, logrus.ErrorLevel, hook.LastEntry().Level)
assert.Equal(t, "Helloerror", hook.LastEntry().Message)
hook.Reset()
assert.Nil(t, hook.LastEntry())
}
```
#### Fatal handlers

View File

@ -1,7 +1,7 @@
package logrus
// The following code was sourced and modified from the
// https://bitbucket.org/tebeka/atexit package governed by the following license:
// https://github.com/tebeka/atexit package governed by the following license:
//
// Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
//

View File

@ -2,7 +2,10 @@ package logrus
import (
"io/ioutil"
"log"
"os"
"os/exec"
"path/filepath"
"testing"
"time"
)
@ -11,30 +14,36 @@ func TestRegister(t *testing.T) {
current := len(handlers)
RegisterExitHandler(func() {})
if len(handlers) != current+1 {
t.Fatalf("can't add handler")
t.Fatalf("expected %d handlers, got %d", current+1, len(handlers))
}
}
func TestHandler(t *testing.T) {
gofile := "/tmp/testprog.go"
tempDir, err := ioutil.TempDir("", "test_handler")
if err != nil {
log.Fatalf("can't create temp dir. %q", err)
}
defer os.RemoveAll(tempDir)
gofile := filepath.Join(tempDir, "gofile.go")
if err := ioutil.WriteFile(gofile, testprog, 0666); err != nil {
t.Fatalf("can't create go file")
t.Fatalf("can't create go file. %q", err)
}
outfile := "/tmp/testprog.out"
outfile := filepath.Join(tempDir, "outfile.out")
arg := time.Now().UTC().String()
err := exec.Command("go", "run", gofile, outfile, arg).Run()
err = exec.Command("go", "run", gofile, outfile, arg).Run()
if err == nil {
t.Fatalf("completed normally, should have failed")
}
data, err := ioutil.ReadFile(outfile)
if err != nil {
t.Fatalf("can't read output file %s", outfile)
t.Fatalf("can't read output file %s. %q", outfile, err)
}
if string(data) != arg {
t.Fatalf("bad data")
t.Fatalf("bad data. Expected %q, got %q", data, arg)
}
}
@ -44,7 +53,7 @@ var testprog = []byte(`
package main
import (
"github.com/Sirupsen/logrus"
"github.com/sirupsen/logrus"
"flag"
"fmt"
"io/ioutil"

View File

@ -0,0 +1,14 @@
version: "{build}"
platform: x64
clone_folder: c:\gopath\src\github.com\sirupsen\logrus
environment:
GOPATH: c:\gopath
branches:
only:
- master
install:
- set PATH=%GOPATH%\bin;c:\go\bin;%PATH%
- go version
build_script:
- go get -t
- go test

View File

@ -7,7 +7,7 @@ The simplest way to use Logrus is simply the package-level exported logger:
package main
import (
log "github.com/Sirupsen/logrus"
log "github.com/sirupsen/logrus"
)
func main() {
@ -21,6 +21,6 @@ The simplest way to use Logrus is simply the package-level exported logger:
Output:
time="2015-09-07T08:48:33Z" level=info msg="A walrus appears" animal=walrus number=1 size=10
For a full guide visit https://github.com/Sirupsen/logrus
For a full guide visit https://github.com/sirupsen/logrus
*/
package logrus

View File

@ -35,6 +35,7 @@ type Entry struct {
Time time.Time
// Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic
// This field will be set on entry firing and the value will be equal to the one in Logger struct field.
Level Level
// Message passed to Debug, Info, Warn, Error, Fatal or Panic
@ -93,7 +94,10 @@ func (entry Entry) log(level Level, msg string) {
entry.Level = level
entry.Message = msg
if err := entry.Logger.Hooks.Fire(level, &entry); err != nil {
entry.Logger.mu.Lock()
err := entry.Logger.Hooks.Fire(level, &entry)
entry.Logger.mu.Unlock()
if err != nil {
entry.Logger.mu.Lock()
fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
entry.Logger.mu.Unlock()
@ -126,7 +130,7 @@ func (entry Entry) log(level Level, msg string) {
}
func (entry *Entry) Debug(args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
if entry.Logger.level() >= DebugLevel {
entry.log(DebugLevel, fmt.Sprint(args...))
}
}
@ -136,13 +140,13 @@ func (entry *Entry) Print(args ...interface{}) {
}
func (entry *Entry) Info(args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
if entry.Logger.level() >= InfoLevel {
entry.log(InfoLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Warn(args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
if entry.Logger.level() >= WarnLevel {
entry.log(WarnLevel, fmt.Sprint(args...))
}
}
@ -152,20 +156,20 @@ func (entry *Entry) Warning(args ...interface{}) {
}
func (entry *Entry) Error(args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
if entry.Logger.level() >= ErrorLevel {
entry.log(ErrorLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Fatal(args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
if entry.Logger.level() >= FatalLevel {
entry.log(FatalLevel, fmt.Sprint(args...))
}
Exit(1)
}
func (entry *Entry) Panic(args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
if entry.Logger.level() >= PanicLevel {
entry.log(PanicLevel, fmt.Sprint(args...))
}
panic(fmt.Sprint(args...))
@ -174,13 +178,13 @@ func (entry *Entry) Panic(args ...interface{}) {
// Entry Printf family functions
func (entry *Entry) Debugf(format string, args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
if entry.Logger.level() >= DebugLevel {
entry.Debug(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Infof(format string, args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
if entry.Logger.level() >= InfoLevel {
entry.Info(fmt.Sprintf(format, args...))
}
}
@ -190,7 +194,7 @@ func (entry *Entry) Printf(format string, args ...interface{}) {
}
func (entry *Entry) Warnf(format string, args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
if entry.Logger.level() >= WarnLevel {
entry.Warn(fmt.Sprintf(format, args...))
}
}
@ -200,20 +204,20 @@ func (entry *Entry) Warningf(format string, args ...interface{}) {
}
func (entry *Entry) Errorf(format string, args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
if entry.Logger.level() >= ErrorLevel {
entry.Error(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Fatalf(format string, args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
if entry.Logger.level() >= FatalLevel {
entry.Fatal(fmt.Sprintf(format, args...))
}
Exit(1)
}
func (entry *Entry) Panicf(format string, args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
if entry.Logger.level() >= PanicLevel {
entry.Panic(fmt.Sprintf(format, args...))
}
}
@ -221,13 +225,13 @@ func (entry *Entry) Panicf(format string, args ...interface{}) {
// Entry Println family functions
func (entry *Entry) Debugln(args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
if entry.Logger.level() >= DebugLevel {
entry.Debug(entry.sprintlnn(args...))
}
}
func (entry *Entry) Infoln(args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
if entry.Logger.level() >= InfoLevel {
entry.Info(entry.sprintlnn(args...))
}
}
@ -237,7 +241,7 @@ func (entry *Entry) Println(args ...interface{}) {
}
func (entry *Entry) Warnln(args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
if entry.Logger.level() >= WarnLevel {
entry.Warn(entry.sprintlnn(args...))
}
}
@ -247,20 +251,20 @@ func (entry *Entry) Warningln(args ...interface{}) {
}
func (entry *Entry) Errorln(args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
if entry.Logger.level() >= ErrorLevel {
entry.Error(entry.sprintlnn(args...))
}
}
func (entry *Entry) Fatalln(args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
if entry.Logger.level() >= FatalLevel {
entry.Fatal(entry.sprintlnn(args...))
}
Exit(1)
}
func (entry *Entry) Panicln(args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
if entry.Logger.level() >= PanicLevel {
entry.Panic(entry.sprintlnn(args...))
}
}

View File

@ -0,0 +1,69 @@
package logrus_test
import (
"github.com/sirupsen/logrus"
"os"
)
func Example_basic() {
var log = logrus.New()
log.Formatter = new(logrus.JSONFormatter)
log.Formatter = new(logrus.TextFormatter) //default
log.Formatter.(*logrus.TextFormatter).DisableTimestamp = true // remove timestamp from test output
log.Level = logrus.DebugLevel
log.Out = os.Stdout
// file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY, 0666)
// if err == nil {
// log.Out = file
// } else {
// log.Info("Failed to log to file, using default stderr")
// }
defer func() {
err := recover()
if err != nil {
entry := err.(*logrus.Entry)
log.WithFields(logrus.Fields{
"omg": true,
"err_animal": entry.Data["animal"],
"err_size": entry.Data["size"],
"err_level": entry.Level,
"err_message": entry.Message,
"number": 100,
}).Error("The ice breaks!") // or use Fatal() to force the process to exit with a nonzero code
}
}()
log.WithFields(logrus.Fields{
"animal": "walrus",
"number": 8,
}).Debug("Started observing beach")
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(logrus.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(logrus.Fields{
"temperature": -4,
}).Debug("Temperature changes")
log.WithFields(logrus.Fields{
"animal": "orca",
"size": 9009,
}).Panic("It's over 9000!")
// Output:
// level=debug msg="Started observing beach" animal=walrus number=8
// level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
// level=warning msg="The group's number increased tremendously!" number=122 omg=true
// level=debug msg="Temperature changes" temperature=-4
// level=panic msg="It's over 9000!" animal=orca size=9009
// level=error msg="The ice breaks!" err_animal=orca err_level=panic err_message="It's over 9000!" err_size=9009 number=100 omg=true
}

View File

@ -0,0 +1,35 @@
package logrus_test
import (
"github.com/sirupsen/logrus"
"gopkg.in/gemnasium/logrus-airbrake-hook.v2"
"os"
)
func Example_hook() {
var log = logrus.New()
log.Formatter = new(logrus.TextFormatter) // default
log.Formatter.(*logrus.TextFormatter).DisableTimestamp = true // remove timestamp from test output
log.Hooks.Add(airbrake.NewHook(123, "xyz", "development"))
log.Out = os.Stdout
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(logrus.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(logrus.Fields{
"omg": true,
"number": 100,
}).Error("The ice breaks!")
// Output:
// level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
// level=warning msg="The group's number increased tremendously!" number=122 omg=true
// level=error msg="The ice breaks!" number=100 omg=true
}

View File

@ -1,50 +0,0 @@
package main
import (
"github.com/Sirupsen/logrus"
)
var log = logrus.New()
func init() {
log.Formatter = new(logrus.JSONFormatter)
log.Formatter = new(logrus.TextFormatter) // default
log.Level = logrus.DebugLevel
}
func main() {
defer func() {
err := recover()
if err != nil {
log.WithFields(logrus.Fields{
"omg": true,
"err": err,
"number": 100,
}).Fatal("The ice breaks!")
}
}()
log.WithFields(logrus.Fields{
"animal": "walrus",
"number": 8,
}).Debug("Started observing beach")
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(logrus.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(logrus.Fields{
"temperature": -4,
}).Debug("Temperature changes")
log.WithFields(logrus.Fields{
"animal": "orca",
"size": 9009,
}).Panic("It's over 9000!")
}

View File

@ -1,30 +0,0 @@
package main
import (
"github.com/Sirupsen/logrus"
"gopkg.in/gemnasium/logrus-airbrake-hook.v2"
)
var log = logrus.New()
func init() {
log.Formatter = new(logrus.TextFormatter) // default
log.Hooks.Add(airbrake.NewHook(123, "xyz", "development"))
}
func main() {
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(logrus.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(logrus.Fields{
"omg": true,
"number": 100,
}).Fatal("The ice breaks!")
}

View File

@ -31,14 +31,14 @@ func SetFormatter(formatter Formatter) {
func SetLevel(level Level) {
std.mu.Lock()
defer std.mu.Unlock()
std.Level = level
std.SetLevel(level)
}
// GetLevel returns the standard logger level.
func GetLevel() Level {
std.mu.Lock()
defer std.mu.Unlock()
return std.Level
return std.level()
}
// AddHook adds a hook to the standard logger hooks.

View File

@ -2,7 +2,7 @@ package logrus
import "time"
const DefaultTimestampFormat = time.RFC3339
const defaultTimestampFormat = time.RFC3339
// The Formatter interface is used to implement a custom Formatter. It takes an
// `Entry`. It exposes all the fields, including the default ones:

View File

@ -80,11 +80,14 @@ func BenchmarkLargeJSONFormatter(b *testing.B) {
}
func doBenchmark(b *testing.B, formatter Formatter, fields Fields) {
logger := New()
entry := &Entry{
Time: time.Time{},
Level: InfoLevel,
Message: "message",
Data: fields,
Logger: logger,
}
var d []byte
var err error

View File

@ -1,6 +1,7 @@
package logrus
import (
"sync"
"testing"
"github.com/stretchr/testify/assert"
@ -120,3 +121,24 @@ func TestErrorHookShouldFireOnError(t *testing.T) {
assert.Equal(t, hook.Fired, true)
})
}
func TestAddHookRace(t *testing.T) {
var wg sync.WaitGroup
wg.Add(2)
hook := new(ErrorHook)
LogAndAssertJSON(t, func(log *Logger) {
go func() {
defer wg.Done()
log.AddHook(hook)
}()
go func() {
defer wg.Done()
log.Error("test")
}()
wg.Wait()
}, func(fields Fields) {
// the line may have been logged
// before the hook was added, so we can't
// actually assert on the hook
})
}

View File

@ -5,13 +5,13 @@
```go
import (
"log/syslog"
"github.com/Sirupsen/logrus"
logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
"github.com/sirupsen/logrus"
lSyslog "github.com/sirupsen/logrus/hooks/syslog"
)
func main() {
log := logrus.New()
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
hook, err := lSyslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err == nil {
log.Hooks.Add(hook)
@ -24,16 +24,16 @@ If you want to connect to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "
```go
import (
"log/syslog"
"github.com/Sirupsen/logrus"
logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
"github.com/sirupsen/logrus"
lSyslog "github.com/sirupsen/logrus/hooks/syslog"
)
func main() {
log := logrus.New()
hook, err := logrus_syslog.NewSyslogHook("", "", syslog.LOG_INFO, "")
hook, err := lSyslog.NewSyslogHook("", "", syslog.LOG_INFO, "")
if err == nil {
log.Hooks.Add(hook)
}
}
```
```

View File

@ -1,12 +1,13 @@
// +build !windows,!nacl,!plan9
package logrus_syslog
package syslog
import (
"fmt"
"github.com/Sirupsen/logrus"
"log/syslog"
"os"
"github.com/sirupsen/logrus"
)
// SyslogHook to send logs via syslog.

View File

@ -1,9 +1,10 @@
package logrus_syslog
package syslog
import (
"github.com/Sirupsen/logrus"
"log/syslog"
"testing"
"github.com/sirupsen/logrus"
)
func TestLocalhostAddAndPrint(t *testing.T) {

View File

@ -1,17 +1,25 @@
// The Test package is used for testing logrus. It is here for backwards
// compatibility from when logrus' organization was upper-case. Please use
// lower-case logrus and the `null` package instead of this one.
package test
import (
"io/ioutil"
"sync"
"github.com/Sirupsen/logrus"
"github.com/sirupsen/logrus"
)
// test.Hook is a hook designed for dealing with logs in test scenarios.
// Hook is a hook designed for dealing with logs in test scenarios.
type Hook struct {
// Entries is an array of all entries that have been received by this hook.
// For safe access, use the AllEntries() method, rather than reading this
// value directly.
Entries []*logrus.Entry
mu sync.RWMutex
}
// Installs a test hook for the global logger.
// NewGlobal installs a test hook for the global logger.
func NewGlobal() *Hook {
hook := new(Hook)
@ -21,7 +29,7 @@ func NewGlobal() *Hook {
}
// Installs a test hook for a given local logger.
// NewLocal installs a test hook for a given local logger.
func NewLocal(logger *logrus.Logger) *Hook {
hook := new(Hook)
@ -31,7 +39,7 @@ func NewLocal(logger *logrus.Logger) *Hook {
}
// Creates a discarding logger and installs the test hook.
// NewNullLogger creates a discarding logger and installs the test hook.
func NewNullLogger() (*logrus.Logger, *Hook) {
logger := logrus.New()
@ -42,6 +50,8 @@ func NewNullLogger() (*logrus.Logger, *Hook) {
}
func (t *Hook) Fire(e *logrus.Entry) error {
t.mu.Lock()
defer t.mu.Unlock()
t.Entries = append(t.Entries, e)
return nil
}
@ -51,17 +61,35 @@ func (t *Hook) Levels() []logrus.Level {
}
// LastEntry returns the last entry that was logged or nil.
func (t *Hook) LastEntry() (l *logrus.Entry) {
if i := len(t.Entries) - 1; i < 0 {
func (t *Hook) LastEntry() *logrus.Entry {
t.mu.RLock()
defer t.mu.RUnlock()
i := len(t.Entries) - 1
if i < 0 {
return nil
} else {
return t.Entries[i]
}
// Make a copy, for safety
e := *t.Entries[i]
return &e
}
// AllEntries returns all entries that were logged.
func (t *Hook) AllEntries() []*logrus.Entry {
t.mu.RLock()
defer t.mu.RUnlock()
// Make a copy so the returned value won't race with future log requests
entries := make([]*logrus.Entry, len(t.Entries))
for i, entry := range t.Entries {
// Make a copy, for safety
e := *entry
entries[i] = &e
}
return entries
}
// Reset removes all Entries from this test hook.
func (t *Hook) Reset() {
t.mu.Lock()
defer t.mu.Unlock()
t.Entries = make([]*logrus.Entry, 0)
}

View File

@ -3,7 +3,7 @@ package test
import (
"testing"
"github.com/Sirupsen/logrus"
"github.com/sirupsen/logrus"
"github.com/stretchr/testify/assert"
)

View File

@ -6,8 +6,11 @@ import (
)
type fieldKey string
// FieldMap allows customization of the key names for default fields.
type FieldMap map[fieldKey]string
// Default key names for the default fields
const (
FieldKeyMsg = "msg"
FieldKeyLevel = "level"
@ -22,6 +25,7 @@ func (f FieldMap) resolve(key fieldKey) string {
return string(key)
}
// JSONFormatter formats logs into parsable json
type JSONFormatter struct {
// TimestampFormat sets the format used for marshaling timestamps.
TimestampFormat string
@ -29,25 +33,26 @@ type JSONFormatter struct {
// DisableTimestamp allows disabling automatic timestamps in output
DisableTimestamp bool
// FieldMap allows users to customize the names of keys for various fields.
// FieldMap allows users to customize the names of keys for default fields.
// As an example:
// formatter := &JSONFormatter{
// FieldMap: FieldMap{
// FieldKeyTime: "@timestamp",
// FieldKeyLevel: "@level",
// FieldKeyLevel: "@message",
// FieldKeyMsg: "@message",
// },
// }
FieldMap FieldMap
}
// Format renders a single log entry
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
data := make(Fields, len(entry.Data)+3)
for k, v := range entry.Data {
switch v := v.(type) {
case error:
// Otherwise errors are ignored by `encoding/json`
// https://github.com/Sirupsen/logrus/issues/137
// https://github.com/sirupsen/logrus/issues/137
data[k] = v.Error()
default:
data[k] = v
@ -57,7 +62,7 @@ func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
timestampFormat := f.TimestampFormat
if timestampFormat == "" {
timestampFormat = DefaultTimestampFormat
timestampFormat = defaultTimestampFormat
}
if !f.DisableTimestamp {

View File

@ -4,6 +4,7 @@ import (
"io"
"os"
"sync"
"sync/atomic"
)
type Logger struct {
@ -24,7 +25,7 @@ type Logger struct {
Formatter Formatter
// The logging level the logger should log at. This is typically (and defaults
// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
// logged. `logrus.Debug` is useful in
// logged.
Level Level
// Used to sync writing to the log. Locking is enabled by Default
mu MutexWrap
@ -112,7 +113,7 @@ func (logger *Logger) WithError(err error) *Entry {
}
func (logger *Logger) Debugf(format string, args ...interface{}) {
if logger.Level >= DebugLevel {
if logger.level() >= DebugLevel {
entry := logger.newEntry()
entry.Debugf(format, args...)
logger.releaseEntry(entry)
@ -120,7 +121,7 @@ func (logger *Logger) Debugf(format string, args ...interface{}) {
}
func (logger *Logger) Infof(format string, args ...interface{}) {
if logger.Level >= InfoLevel {
if logger.level() >= InfoLevel {
entry := logger.newEntry()
entry.Infof(format, args...)
logger.releaseEntry(entry)
@ -134,7 +135,7 @@ func (logger *Logger) Printf(format string, args ...interface{}) {
}
func (logger *Logger) Warnf(format string, args ...interface{}) {
if logger.Level >= WarnLevel {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warnf(format, args...)
logger.releaseEntry(entry)
@ -142,7 +143,7 @@ func (logger *Logger) Warnf(format string, args ...interface{}) {
}
func (logger *Logger) Warningf(format string, args ...interface{}) {
if logger.Level >= WarnLevel {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warnf(format, args...)
logger.releaseEntry(entry)
@ -150,7 +151,7 @@ func (logger *Logger) Warningf(format string, args ...interface{}) {
}
func (logger *Logger) Errorf(format string, args ...interface{}) {
if logger.Level >= ErrorLevel {
if logger.level() >= ErrorLevel {
entry := logger.newEntry()
entry.Errorf(format, args...)
logger.releaseEntry(entry)
@ -158,7 +159,7 @@ func (logger *Logger) Errorf(format string, args ...interface{}) {
}
func (logger *Logger) Fatalf(format string, args ...interface{}) {
if logger.Level >= FatalLevel {
if logger.level() >= FatalLevel {
entry := logger.newEntry()
entry.Fatalf(format, args...)
logger.releaseEntry(entry)
@ -167,7 +168,7 @@ func (logger *Logger) Fatalf(format string, args ...interface{}) {
}
func (logger *Logger) Panicf(format string, args ...interface{}) {
if logger.Level >= PanicLevel {
if logger.level() >= PanicLevel {
entry := logger.newEntry()
entry.Panicf(format, args...)
logger.releaseEntry(entry)
@ -175,7 +176,7 @@ func (logger *Logger) Panicf(format string, args ...interface{}) {
}
func (logger *Logger) Debug(args ...interface{}) {
if logger.Level >= DebugLevel {
if logger.level() >= DebugLevel {
entry := logger.newEntry()
entry.Debug(args...)
logger.releaseEntry(entry)
@ -183,7 +184,7 @@ func (logger *Logger) Debug(args ...interface{}) {
}
func (logger *Logger) Info(args ...interface{}) {
if logger.Level >= InfoLevel {
if logger.level() >= InfoLevel {
entry := logger.newEntry()
entry.Info(args...)
logger.releaseEntry(entry)
@ -197,7 +198,7 @@ func (logger *Logger) Print(args ...interface{}) {
}
func (logger *Logger) Warn(args ...interface{}) {
if logger.Level >= WarnLevel {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warn(args...)
logger.releaseEntry(entry)
@ -205,7 +206,7 @@ func (logger *Logger) Warn(args ...interface{}) {
}
func (logger *Logger) Warning(args ...interface{}) {
if logger.Level >= WarnLevel {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warn(args...)
logger.releaseEntry(entry)
@ -213,7 +214,7 @@ func (logger *Logger) Warning(args ...interface{}) {
}
func (logger *Logger) Error(args ...interface{}) {
if logger.Level >= ErrorLevel {
if logger.level() >= ErrorLevel {
entry := logger.newEntry()
entry.Error(args...)
logger.releaseEntry(entry)
@ -221,7 +222,7 @@ func (logger *Logger) Error(args ...interface{}) {
}
func (logger *Logger) Fatal(args ...interface{}) {
if logger.Level >= FatalLevel {
if logger.level() >= FatalLevel {
entry := logger.newEntry()
entry.Fatal(args...)
logger.releaseEntry(entry)
@ -230,7 +231,7 @@ func (logger *Logger) Fatal(args ...interface{}) {
}
func (logger *Logger) Panic(args ...interface{}) {
if logger.Level >= PanicLevel {
if logger.level() >= PanicLevel {
entry := logger.newEntry()
entry.Panic(args...)
logger.releaseEntry(entry)
@ -238,7 +239,7 @@ func (logger *Logger) Panic(args ...interface{}) {
}
func (logger *Logger) Debugln(args ...interface{}) {
if logger.Level >= DebugLevel {
if logger.level() >= DebugLevel {
entry := logger.newEntry()
entry.Debugln(args...)
logger.releaseEntry(entry)
@ -246,7 +247,7 @@ func (logger *Logger) Debugln(args ...interface{}) {
}
func (logger *Logger) Infoln(args ...interface{}) {
if logger.Level >= InfoLevel {
if logger.level() >= InfoLevel {
entry := logger.newEntry()
entry.Infoln(args...)
logger.releaseEntry(entry)
@ -260,7 +261,7 @@ func (logger *Logger) Println(args ...interface{}) {
}
func (logger *Logger) Warnln(args ...interface{}) {
if logger.Level >= WarnLevel {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warnln(args...)
logger.releaseEntry(entry)
@ -268,7 +269,7 @@ func (logger *Logger) Warnln(args ...interface{}) {
}
func (logger *Logger) Warningln(args ...interface{}) {
if logger.Level >= WarnLevel {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warnln(args...)
logger.releaseEntry(entry)
@ -276,7 +277,7 @@ func (logger *Logger) Warningln(args ...interface{}) {
}
func (logger *Logger) Errorln(args ...interface{}) {
if logger.Level >= ErrorLevel {
if logger.level() >= ErrorLevel {
entry := logger.newEntry()
entry.Errorln(args...)
logger.releaseEntry(entry)
@ -284,7 +285,7 @@ func (logger *Logger) Errorln(args ...interface{}) {
}
func (logger *Logger) Fatalln(args ...interface{}) {
if logger.Level >= FatalLevel {
if logger.level() >= FatalLevel {
entry := logger.newEntry()
entry.Fatalln(args...)
logger.releaseEntry(entry)
@ -293,7 +294,7 @@ func (logger *Logger) Fatalln(args ...interface{}) {
}
func (logger *Logger) Panicln(args ...interface{}) {
if logger.Level >= PanicLevel {
if logger.level() >= PanicLevel {
entry := logger.newEntry()
entry.Panicln(args...)
logger.releaseEntry(entry)
@ -306,3 +307,17 @@ func (logger *Logger) Panicln(args ...interface{}) {
func (logger *Logger) SetNoLock() {
logger.mu.Disable()
}
func (logger *Logger) level() Level {
return Level(atomic.LoadUint32((*uint32)(&logger.Level)))
}
func (logger *Logger) SetLevel(level Level) {
atomic.StoreUint32((*uint32)(&logger.Level), uint32(level))
}
func (logger *Logger) AddHook(hook Hook) {
logger.mu.Lock()
defer logger.mu.Unlock()
logger.Hooks.Add(hook)
}

View File

@ -10,7 +10,7 @@ import (
type Fields map[string]interface{}
// Level type
type Level uint8
type Level uint32
// Convert the Level to a string. E.g. PanicLevel becomes "panic".
func (level Level) String() string {

View File

@ -359,3 +359,28 @@ func TestLogrusInterface(t *testing.T) {
e := logger.WithField("another", "value")
fn(e)
}
// Implements io.Writer using channels for synchronization, so we can wait on
// the Entry.Writer goroutine to write in a non-racey way. This does assume that
// there is a single call to Logger.Out for each message.
type channelWriter chan []byte
func (cw channelWriter) Write(p []byte) (int, error) {
cw <- p
return len(p), nil
}
func TestEntryWriter(t *testing.T) {
cw := channelWriter(make(chan []byte, 1))
log := New()
log.Out = cw
log.Formatter = new(JSONFormatter)
log.WithField("foo", "bar").WriterLevel(WarnLevel).Write([]byte("hello\n"))
bs := <-cw
var fields Fields
err := json.Unmarshal(bs, &fields)
assert.Nil(t, err)
assert.Equal(t, fields["foo"], "bar")
assert.Equal(t, fields["level"], "warning")
}

View File

@ -1,8 +0,0 @@
// +build appengine
package logrus
// IsTerminal returns true if stderr's file descriptor is a terminal.
func IsTerminal() bool {
return true
}

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@ -3,8 +3,8 @@
package logrus
import "syscall"
import "golang.org/x/sys/unix"
const ioctlReadTermios = syscall.TIOCGETA
const ioctlReadTermios = unix.TIOCGETA
type Termios syscall.Termios
type Termios unix.Termios

View File

@ -7,8 +7,8 @@
package logrus
import "syscall"
import "golang.org/x/sys/unix"
const ioctlReadTermios = syscall.TCGETS
const ioctlReadTermios = unix.TCGETS
type Termios syscall.Termios
type Termios unix.Termios

View File

@ -1,22 +0,0 @@
// Based on ssh/terminal:
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux darwin freebsd openbsd netbsd dragonfly
// +build !appengine
package logrus
import (
"syscall"
"unsafe"
)
// IsTerminal returns true if stderr's file descriptor is a terminal.
func IsTerminal() bool {
fd := syscall.Stderr
var termios Termios
_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
return err == 0
}

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@ -1,15 +0,0 @@
// +build solaris,!appengine
package logrus
import (
"os"
"golang.org/x/sys/unix"
)
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal() bool {
_, err := unix.IoctlGetTermios(int(os.Stdout.Fd()), unix.TCGETA)
return err == nil
}

View File

@ -1,27 +0,0 @@
// Based on ssh/terminal:
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows,!appengine
package logrus
import (
"syscall"
"unsafe"
)
var kernel32 = syscall.NewLazyDLL("kernel32.dll")
var (
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
)
// IsTerminal returns true if stderr's file descriptor is a terminal.
func IsTerminal() bool {
fd := syscall.Stderr
var st uint32
r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0)
return r != 0 && e == 0
}

View File

@ -3,10 +3,14 @@ package logrus
import (
"bytes"
"fmt"
"runtime"
"io"
"os"
"sort"
"strings"
"sync"
"time"
"golang.org/x/crypto/ssh/terminal"
)
const (
@ -14,20 +18,19 @@ const (
red = 31
green = 32
yellow = 33
blue = 34
blue = 36
gray = 37
)
var (
baseTimestamp time.Time
isTerminal bool
)
func init() {
baseTimestamp = time.Now()
isTerminal = IsTerminal()
}
// TextFormatter formats logs into text
type TextFormatter struct {
// Set to true to bypass checking for a TTY before outputting colors.
ForceColors bool
@ -50,8 +53,32 @@ type TextFormatter struct {
// that log extremely frequently and don't use the JSON formatter this may not
// be desired.
DisableSorting bool
// QuoteEmptyFields will wrap empty fields in quotes if true
QuoteEmptyFields bool
// Whether the logger's out is to a terminal
isTerminal bool
sync.Once
}
func (f *TextFormatter) init(entry *Entry) {
if entry.Logger != nil {
f.isTerminal = f.checkIfTerminal(entry.Logger.Out)
}
}
func (f *TextFormatter) checkIfTerminal(w io.Writer) bool {
switch v := w.(type) {
case *os.File:
return terminal.IsTerminal(int(v.Fd()))
default:
return false
}
}
// Format renders a single log entry
func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
var b *bytes.Buffer
keys := make([]string, 0, len(entry.Data))
@ -70,12 +97,13 @@ func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
prefixFieldClashes(entry.Data)
isColorTerminal := isTerminal && (runtime.GOOS != "windows")
isColored := (f.ForceColors || isColorTerminal) && !f.DisableColors
f.Do(func() { f.init(entry) })
isColored := (f.ForceColors || f.isTerminal) && !f.DisableColors
timestampFormat := f.TimestampFormat
if timestampFormat == "" {
timestampFormat = DefaultTimestampFormat
timestampFormat = defaultTimestampFormat
}
if isColored {
f.printColored(b, entry, keys, timestampFormat)
@ -125,12 +153,15 @@ func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []strin
}
}
func needsQuoting(text string) bool {
func (f *TextFormatter) needsQuoting(text string) bool {
if f.QuoteEmptyFields && len(text) == 0 {
return true
}
for _, ch := range text {
if !((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch <= '9') ||
ch == '-' || ch == '.') {
ch == '-' || ch == '.' || ch == '_' || ch == '/' || ch == '@' || ch == '^' || ch == '+') {
return true
}
}
@ -138,29 +169,23 @@ func needsQuoting(text string) bool {
}
func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
if b.Len() > 0 {
b.WriteByte(' ')
}
b.WriteString(key)
b.WriteByte('=')
f.appendValue(b, value)
b.WriteByte(' ')
}
func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
switch value := value.(type) {
case string:
if !needsQuoting(value) {
b.WriteString(value)
} else {
fmt.Fprintf(b, "%q", value)
}
case error:
errmsg := value.Error()
if !needsQuoting(errmsg) {
b.WriteString(errmsg)
} else {
fmt.Fprintf(b, "%q", errmsg)
}
default:
fmt.Fprint(b, value)
stringVal, ok := value.(string)
if !ok {
stringVal = fmt.Sprint(value)
}
if !f.needsQuoting(stringVal) {
b.WriteString(stringVal)
} else {
b.WriteString(fmt.Sprintf("%q", stringVal))
}
}

View File

@ -3,18 +3,38 @@ package logrus
import (
"bytes"
"errors"
"fmt"
"strings"
"testing"
"time"
"strings"
)
func TestFormatting(t *testing.T) {
tf := &TextFormatter{DisableColors: true}
testCases := []struct {
value string
expected string
}{
{`foo`, "time=\"0001-01-01T00:00:00Z\" level=panic test=foo\n"},
}
for _, tc := range testCases {
b, _ := tf.Format(WithField("test", tc.value))
if string(b) != tc.expected {
t.Errorf("formatting expected for %q (result was %q instead of %q)", tc.value, string(b), tc.expected)
}
}
}
func TestQuoting(t *testing.T) {
tf := &TextFormatter{DisableColors: true}
checkQuoting := func(q bool, value interface{}) {
b, _ := tf.Format(WithField("test", value))
idx := bytes.Index(b, ([]byte)("test="))
cont := bytes.Contains(b[idx+5:], []byte{'"'})
cont := bytes.Contains(b[idx+5:], []byte("\""))
if cont != q {
if q {
t.Errorf("quoting expected for: %#v", value)
@ -24,14 +44,67 @@ func TestQuoting(t *testing.T) {
}
}
checkQuoting(false, "")
checkQuoting(false, "abcd")
checkQuoting(false, "v1.0")
checkQuoting(false, "1234567890")
checkQuoting(true, "/foobar")
checkQuoting(false, "/foobar")
checkQuoting(false, "foo_bar")
checkQuoting(false, "foo@bar")
checkQuoting(false, "foobar^")
checkQuoting(false, "+/-_^@f.oobar")
checkQuoting(true, "foobar$")
checkQuoting(true, "&foobar")
checkQuoting(true, "x y")
checkQuoting(true, "x,y")
checkQuoting(false, errors.New("invalid"))
checkQuoting(true, errors.New("invalid argument"))
// Test for quoting empty fields.
tf.QuoteEmptyFields = true
checkQuoting(true, "")
checkQuoting(false, "abcd")
checkQuoting(true, errors.New("invalid argument"))
}
func TestEscaping(t *testing.T) {
tf := &TextFormatter{DisableColors: true}
testCases := []struct {
value string
expected string
}{
{`ba"r`, `ba\"r`},
{`ba'r`, `ba'r`},
}
for _, tc := range testCases {
b, _ := tf.Format(WithField("test", tc.value))
if !bytes.Contains(b, []byte(tc.expected)) {
t.Errorf("escaping expected for %q (result was %q instead of %q)", tc.value, string(b), tc.expected)
}
}
}
func TestEscaping_Interface(t *testing.T) {
tf := &TextFormatter{DisableColors: true}
ts := time.Now()
testCases := []struct {
value interface{}
expected string
}{
{ts, fmt.Sprintf("\"%s\"", ts.String())},
{errors.New("error: something went wrong"), "\"error: something went wrong\""},
}
for _, tc := range testCases {
b, _ := tf.Format(WithField("test", tc.value))
if !bytes.Contains(b, []byte(tc.expected)) {
t.Errorf("escaping expected for %q (result was %q instead of %q)", tc.value, string(b), tc.expected)
}
}
}
func TestTimestampFormat(t *testing.T) {
@ -40,10 +113,7 @@ func TestTimestampFormat(t *testing.T) {
customStr, _ := customFormatter.Format(WithField("test", "test"))
timeStart := bytes.Index(customStr, ([]byte)("time="))
timeEnd := bytes.Index(customStr, ([]byte)("level="))
timeStr := customStr[timeStart+5 : timeEnd-1]
if timeStr[0] == '"' && timeStr[len(timeStr)-1] == '"' {
timeStr = timeStr[1 : len(timeStr)-1]
}
timeStr := customStr[timeStart+5+len("\"") : timeEnd-1-len("\"")]
if format == "" {
format = time.RFC3339
}

View File

@ -11,39 +11,48 @@ func (logger *Logger) Writer() *io.PipeWriter {
}
func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
return NewEntry(logger).WriterLevel(level)
}
func (entry *Entry) Writer() *io.PipeWriter {
return entry.WriterLevel(InfoLevel)
}
func (entry *Entry) WriterLevel(level Level) *io.PipeWriter {
reader, writer := io.Pipe()
var printFunc func(args ...interface{})
switch level {
case DebugLevel:
printFunc = logger.Debug
printFunc = entry.Debug
case InfoLevel:
printFunc = logger.Info
printFunc = entry.Info
case WarnLevel:
printFunc = logger.Warn
printFunc = entry.Warn
case ErrorLevel:
printFunc = logger.Error
printFunc = entry.Error
case FatalLevel:
printFunc = logger.Fatal
printFunc = entry.Fatal
case PanicLevel:
printFunc = logger.Panic
printFunc = entry.Panic
default:
printFunc = logger.Print
printFunc = entry.Print
}
go logger.writerScanner(reader, printFunc)
go entry.writerScanner(reader, printFunc)
runtime.SetFinalizer(writer, writerFinalizer)
return writer
}
func (logger *Logger) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
func (entry *Entry) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
scanner := bufio.NewScanner(reader)
for scanner.Scan() {
printFunc(scanner.Text())
}
if err := scanner.Err(); err != nil {
logger.Errorf("Error while reading from Writer: %s", err)
entry.Errorf("Error while reading from Writer: %s", err)
}
reader.Close()
}

View File

@ -12,9 +12,10 @@ import (
"crypto/subtle"
"errors"
"fmt"
"golang.org/x/crypto/blowfish"
"io"
"strconv"
"golang.org/x/crypto/blowfish"
)
const (
@ -205,7 +206,6 @@ func bcrypt(password []byte, cost int, salt []byte) ([]byte, error) {
}
func expensiveBlowfishSetup(key []byte, cost uint32, salt []byte) (*blowfish.Cipher, error) {
csalt, err := base64Decode(salt)
if err != nil {
return nil, err
@ -213,7 +213,8 @@ func expensiveBlowfishSetup(key []byte, cost uint32, salt []byte) (*blowfish.Cip
// Bug compatibility with C bcrypt implementations. They use the trailing
// NULL in the key string during expansion.
ckey := append(key, 0)
// We copy the key to prevent changing the underlying array.
ckey := append(key[:len(key):len(key)], 0)
c, err := blowfish.NewSaltedCipher(ckey, csalt)
if err != nil {

View File

@ -224,3 +224,20 @@ func BenchmarkGeneration(b *testing.B) {
GenerateFromPassword(passwd, 10)
}
}
// See Issue https://github.com/golang/go/issues/20425.
func TestNoSideEffectsFromCompare(t *testing.T) {
source := []byte("passw0rd123456")
password := source[:len(source)-6]
token := source[len(source)-6:]
want := make([]byte, len(source))
copy(want, source)
wantHash := []byte("$2a$10$LK9XRuhNxHHCvjX3tdkRKei1QiCDUKrJRhZv7WWZPuQGRUM92rOUa")
_ = CompareHashAndPassword(wantHash, password)
got := bytes.Join([][]byte{password, token}, []byte(""))
if !bytes.Equal(got, want) {
t.Errorf("got=%q want=%q", got, want)
}
}

View File

@ -12,7 +12,7 @@ type CryptTest struct {
out []byte
}
// Test vector values are from http://www.schneier.com/code/vectors.txt.
// Test vector values are from https://www.schneier.com/code/vectors.txt.
var encryptTests = []CryptTest{
{
[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},

View File

@ -6,7 +6,7 @@
package blowfish // import "golang.org/x/crypto/blowfish"
// The code is a port of Bruce Schneier's C implementation.
// See http://www.schneier.com/blowfish.html.
// See https://www.schneier.com/blowfish.html.
import "strconv"

View File

@ -4,7 +4,7 @@
// The startup permutation array and substitution boxes.
// They are the hexadecimal digits of PI; see:
// http://www.schneier.com/code/constants.txt.
// https://www.schneier.com/code/constants.txt.
package blowfish

View File

@ -0,0 +1,8 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This code was translated into a form compatible with 6a from the public
// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
#define REDMASK51 0x0007FFFFFFFFFFFF

View File

@ -0,0 +1,20 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This code was translated into a form compatible with 6a from the public
// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
// +build amd64,!gccgo,!appengine
// These constants cannot be encoded in non-MOVQ immediates.
// We access them directly from memory instead.
DATA ·_121666_213(SB)/8, $996687872
GLOBL ·_121666_213(SB), 8, $8
DATA ·_2P0(SB)/8, $0xFFFFFFFFFFFDA
GLOBL ·_2P0(SB), 8, $8
DATA ·_2P1234(SB)/8, $0xFFFFFFFFFFFFE
GLOBL ·_2P1234(SB), 8, $8

View File

@ -0,0 +1,65 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build amd64,!gccgo,!appengine
// func cswap(inout *[4][5]uint64, v uint64)
TEXT ·cswap(SB),7,$0
MOVQ inout+0(FP),DI
MOVQ v+8(FP),SI
SUBQ $1, SI
NOTQ SI
MOVQ SI, X15
PSHUFD $0x44, X15, X15
MOVOU 0(DI), X0
MOVOU 16(DI), X2
MOVOU 32(DI), X4
MOVOU 48(DI), X6
MOVOU 64(DI), X8
MOVOU 80(DI), X1
MOVOU 96(DI), X3
MOVOU 112(DI), X5
MOVOU 128(DI), X7
MOVOU 144(DI), X9
MOVO X1, X10
MOVO X3, X11
MOVO X5, X12
MOVO X7, X13
MOVO X9, X14
PXOR X0, X10
PXOR X2, X11
PXOR X4, X12
PXOR X6, X13
PXOR X8, X14
PAND X15, X10
PAND X15, X11
PAND X15, X12
PAND X15, X13
PAND X15, X14
PXOR X10, X0
PXOR X10, X1
PXOR X11, X2
PXOR X11, X3
PXOR X12, X4
PXOR X12, X5
PXOR X13, X6
PXOR X13, X7
PXOR X14, X8
PXOR X14, X9
MOVOU X0, 0(DI)
MOVOU X2, 16(DI)
MOVOU X4, 32(DI)
MOVOU X6, 48(DI)
MOVOU X8, 64(DI)
MOVOU X1, 80(DI)
MOVOU X3, 96(DI)
MOVOU X5, 112(DI)
MOVOU X7, 128(DI)
MOVOU X9, 144(DI)
RET

View File

@ -0,0 +1,834 @@
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// We have an implementation in amd64 assembly so this code is only run on
// non-amd64 platforms. The amd64 assembly does not support gccgo.
// +build !amd64 gccgo appengine
package curve25519
import (
"encoding/binary"
)
// This code is a port of the public domain, "ref10" implementation of
// curve25519 from SUPERCOP 20130419 by D. J. Bernstein.
// fieldElement represents an element of the field GF(2^255 - 19). An element
// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
// t[3]+2^102 t[4]+...+2^230 t[9]. Bounds on each t[i] vary depending on
// context.
type fieldElement [10]int32
func feZero(fe *fieldElement) {
for i := range fe {
fe[i] = 0
}
}
func feOne(fe *fieldElement) {
feZero(fe)
fe[0] = 1
}
func feAdd(dst, a, b *fieldElement) {
for i := range dst {
dst[i] = a[i] + b[i]
}
}
func feSub(dst, a, b *fieldElement) {
for i := range dst {
dst[i] = a[i] - b[i]
}
}
func feCopy(dst, src *fieldElement) {
for i := range dst {
dst[i] = src[i]
}
}
// feCSwap replaces (f,g) with (g,f) if b == 1; replaces (f,g) with (f,g) if b == 0.
//
// Preconditions: b in {0,1}.
func feCSwap(f, g *fieldElement, b int32) {
b = -b
for i := range f {
t := b & (f[i] ^ g[i])
f[i] ^= t
g[i] ^= t
}
}
// load3 reads a 24-bit, little-endian value from in.
func load3(in []byte) int64 {
var r int64
r = int64(in[0])
r |= int64(in[1]) << 8
r |= int64(in[2]) << 16
return r
}
// load4 reads a 32-bit, little-endian value from in.
func load4(in []byte) int64 {
return int64(binary.LittleEndian.Uint32(in))
}
func feFromBytes(dst *fieldElement, src *[32]byte) {
h0 := load4(src[:])
h1 := load3(src[4:]) << 6
h2 := load3(src[7:]) << 5
h3 := load3(src[10:]) << 3
h4 := load3(src[13:]) << 2
h5 := load4(src[16:])
h6 := load3(src[20:]) << 7
h7 := load3(src[23:]) << 5
h8 := load3(src[26:]) << 4
h9 := load3(src[29:]) << 2
var carry [10]int64
carry[9] = (h9 + 1<<24) >> 25
h0 += carry[9] * 19
h9 -= carry[9] << 25
carry[1] = (h1 + 1<<24) >> 25
h2 += carry[1]
h1 -= carry[1] << 25
carry[3] = (h3 + 1<<24) >> 25
h4 += carry[3]
h3 -= carry[3] << 25
carry[5] = (h5 + 1<<24) >> 25
h6 += carry[5]
h5 -= carry[5] << 25
carry[7] = (h7 + 1<<24) >> 25
h8 += carry[7]
h7 -= carry[7] << 25
carry[0] = (h0 + 1<<25) >> 26
h1 += carry[0]
h0 -= carry[0] << 26
carry[2] = (h2 + 1<<25) >> 26
h3 += carry[2]
h2 -= carry[2] << 26
carry[4] = (h4 + 1<<25) >> 26
h5 += carry[4]
h4 -= carry[4] << 26
carry[6] = (h6 + 1<<25) >> 26
h7 += carry[6]
h6 -= carry[6] << 26
carry[8] = (h8 + 1<<25) >> 26
h9 += carry[8]
h8 -= carry[8] << 26
dst[0] = int32(h0)
dst[1] = int32(h1)
dst[2] = int32(h2)
dst[3] = int32(h3)
dst[4] = int32(h4)
dst[5] = int32(h5)
dst[6] = int32(h6)
dst[7] = int32(h7)
dst[8] = int32(h8)
dst[9] = int32(h9)
}
// feToBytes marshals h to s.
// Preconditions:
// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
//
// Write p=2^255-19; q=floor(h/p).
// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
//
// Proof:
// Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
// Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4.
//
// Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
// Then 0<y<1.
//
// Write r=h-pq.
// Have 0<=r<=p-1=2^255-20.
// Thus 0<=r+19(2^-255)r<r+19(2^-255)2^255<=2^255-1.
//
// Write x=r+19(2^-255)r+y.
// Then 0<x<2^255 so floor(2^(-255)x) = 0 so floor(q+2^(-255)x) = q.
//
// Have q+2^(-255)x = 2^(-255)(h + 19 2^(-25) h9 + 2^(-1))
// so floor(2^(-255)(h + 19 2^(-25) h9 + 2^(-1))) = q.
func feToBytes(s *[32]byte, h *fieldElement) {
var carry [10]int32
q := (19*h[9] + (1 << 24)) >> 25
q = (h[0] + q) >> 26
q = (h[1] + q) >> 25
q = (h[2] + q) >> 26
q = (h[3] + q) >> 25
q = (h[4] + q) >> 26
q = (h[5] + q) >> 25
q = (h[6] + q) >> 26
q = (h[7] + q) >> 25
q = (h[8] + q) >> 26
q = (h[9] + q) >> 25
// Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20.
h[0] += 19 * q
// Goal: Output h-2^255 q, which is between 0 and 2^255-20.
carry[0] = h[0] >> 26
h[1] += carry[0]
h[0] -= carry[0] << 26
carry[1] = h[1] >> 25
h[2] += carry[1]
h[1] -= carry[1] << 25
carry[2] = h[2] >> 26
h[3] += carry[2]
h[2] -= carry[2] << 26
carry[3] = h[3] >> 25
h[4] += carry[3]
h[3] -= carry[3] << 25
carry[4] = h[4] >> 26
h[5] += carry[4]
h[4] -= carry[4] << 26
carry[5] = h[5] >> 25
h[6] += carry[5]
h[5] -= carry[5] << 25
carry[6] = h[6] >> 26
h[7] += carry[6]
h[6] -= carry[6] << 26
carry[7] = h[7] >> 25
h[8] += carry[7]
h[7] -= carry[7] << 25
carry[8] = h[8] >> 26
h[9] += carry[8]
h[8] -= carry[8] << 26
carry[9] = h[9] >> 25
h[9] -= carry[9] << 25
// h10 = carry9
// Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20.
// Have h[0]+...+2^230 h[9] between 0 and 2^255-1;
// evidently 2^255 h10-2^255 q = 0.
// Goal: Output h[0]+...+2^230 h[9].
s[0] = byte(h[0] >> 0)
s[1] = byte(h[0] >> 8)
s[2] = byte(h[0] >> 16)
s[3] = byte((h[0] >> 24) | (h[1] << 2))
s[4] = byte(h[1] >> 6)
s[5] = byte(h[1] >> 14)
s[6] = byte((h[1] >> 22) | (h[2] << 3))
s[7] = byte(h[2] >> 5)
s[8] = byte(h[2] >> 13)
s[9] = byte((h[2] >> 21) | (h[3] << 5))
s[10] = byte(h[3] >> 3)
s[11] = byte(h[3] >> 11)
s[12] = byte((h[3] >> 19) | (h[4] << 6))
s[13] = byte(h[4] >> 2)
s[14] = byte(h[4] >> 10)
s[15] = byte(h[4] >> 18)
s[16] = byte(h[5] >> 0)
s[17] = byte(h[5] >> 8)
s[18] = byte(h[5] >> 16)
s[19] = byte((h[5] >> 24) | (h[6] << 1))
s[20] = byte(h[6] >> 7)
s[21] = byte(h[6] >> 15)
s[22] = byte((h[6] >> 23) | (h[7] << 3))
s[23] = byte(h[7] >> 5)
s[24] = byte(h[7] >> 13)
s[25] = byte((h[7] >> 21) | (h[8] << 4))
s[26] = byte(h[8] >> 4)
s[27] = byte(h[8] >> 12)
s[28] = byte((h[8] >> 20) | (h[9] << 6))
s[29] = byte(h[9] >> 2)
s[30] = byte(h[9] >> 10)
s[31] = byte(h[9] >> 18)
}
// feMul calculates h = f * g
// Can overlap h with f or g.
//
// Preconditions:
// |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
// |g| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
//
// Postconditions:
// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
//
// Notes on implementation strategy:
//
// Using schoolbook multiplication.
// Karatsuba would save a little in some cost models.
//
// Most multiplications by 2 and 19 are 32-bit precomputations;
// cheaper than 64-bit postcomputations.
//
// There is one remaining multiplication by 19 in the carry chain;
// one *19 precomputation can be merged into this,
// but the resulting data flow is considerably less clean.
//
// There are 12 carries below.
// 10 of them are 2-way parallelizable and vectorizable.
// Can get away with 11 carries, but then data flow is much deeper.
//
// With tighter constraints on inputs can squeeze carries into int32.
func feMul(h, f, g *fieldElement) {
f0 := f[0]
f1 := f[1]
f2 := f[2]
f3 := f[3]
f4 := f[4]
f5 := f[5]
f6 := f[6]
f7 := f[7]
f8 := f[8]
f9 := f[9]
g0 := g[0]
g1 := g[1]
g2 := g[2]
g3 := g[3]
g4 := g[4]
g5 := g[5]
g6 := g[6]
g7 := g[7]
g8 := g[8]
g9 := g[9]
g1_19 := 19 * g1 // 1.4*2^29
g2_19 := 19 * g2 // 1.4*2^30; still ok
g3_19 := 19 * g3
g4_19 := 19 * g4
g5_19 := 19 * g5
g6_19 := 19 * g6
g7_19 := 19 * g7
g8_19 := 19 * g8
g9_19 := 19 * g9
f1_2 := 2 * f1
f3_2 := 2 * f3
f5_2 := 2 * f5
f7_2 := 2 * f7
f9_2 := 2 * f9
f0g0 := int64(f0) * int64(g0)
f0g1 := int64(f0) * int64(g1)
f0g2 := int64(f0) * int64(g2)
f0g3 := int64(f0) * int64(g3)
f0g4 := int64(f0) * int64(g4)
f0g5 := int64(f0) * int64(g5)
f0g6 := int64(f0) * int64(g6)
f0g7 := int64(f0) * int64(g7)
f0g8 := int64(f0) * int64(g8)
f0g9 := int64(f0) * int64(g9)
f1g0 := int64(f1) * int64(g0)
f1g1_2 := int64(f1_2) * int64(g1)
f1g2 := int64(f1) * int64(g2)
f1g3_2 := int64(f1_2) * int64(g3)
f1g4 := int64(f1) * int64(g4)
f1g5_2 := int64(f1_2) * int64(g5)
f1g6 := int64(f1) * int64(g6)
f1g7_2 := int64(f1_2) * int64(g7)
f1g8 := int64(f1) * int64(g8)
f1g9_38 := int64(f1_2) * int64(g9_19)
f2g0 := int64(f2) * int64(g0)
f2g1 := int64(f2) * int64(g1)
f2g2 := int64(f2) * int64(g2)
f2g3 := int64(f2) * int64(g3)
f2g4 := int64(f2) * int64(g4)
f2g5 := int64(f2) * int64(g5)
f2g6 := int64(f2) * int64(g6)
f2g7 := int64(f2) * int64(g7)
f2g8_19 := int64(f2) * int64(g8_19)
f2g9_19 := int64(f2) * int64(g9_19)
f3g0 := int64(f3) * int64(g0)
f3g1_2 := int64(f3_2) * int64(g1)
f3g2 := int64(f3) * int64(g2)
f3g3_2 := int64(f3_2) * int64(g3)
f3g4 := int64(f3) * int64(g4)
f3g5_2 := int64(f3_2) * int64(g5)
f3g6 := int64(f3) * int64(g6)
f3g7_38 := int64(f3_2) * int64(g7_19)
f3g8_19 := int64(f3) * int64(g8_19)
f3g9_38 := int64(f3_2) * int64(g9_19)
f4g0 := int64(f4) * int64(g0)
f4g1 := int64(f4) * int64(g1)
f4g2 := int64(f4) * int64(g2)
f4g3 := int64(f4) * int64(g3)
f4g4 := int64(f4) * int64(g4)
f4g5 := int64(f4) * int64(g5)
f4g6_19 := int64(f4) * int64(g6_19)
f4g7_19 := int64(f4) * int64(g7_19)
f4g8_19 := int64(f4) * int64(g8_19)
f4g9_19 := int64(f4) * int64(g9_19)
f5g0 := int64(f5) * int64(g0)
f5g1_2 := int64(f5_2) * int64(g1)
f5g2 := int64(f5) * int64(g2)
f5g3_2 := int64(f5_2) * int64(g3)
f5g4 := int64(f5) * int64(g4)
f5g5_38 := int64(f5_2) * int64(g5_19)
f5g6_19 := int64(f5) * int64(g6_19)
f5g7_38 := int64(f5_2) * int64(g7_19)
f5g8_19 := int64(f5) * int64(g8_19)
f5g9_38 := int64(f5_2) * int64(g9_19)
f6g0 := int64(f6) * int64(g0)
f6g1 := int64(f6) * int64(g1)
f6g2 := int64(f6) * int64(g2)
f6g3 := int64(f6) * int64(g3)
f6g4_19 := int64(f6) * int64(g4_19)
f6g5_19 := int64(f6) * int64(g5_19)
f6g6_19 := int64(f6) * int64(g6_19)
f6g7_19 := int64(f6) * int64(g7_19)
f6g8_19 := int64(f6) * int64(g8_19)
f6g9_19 := int64(f6) * int64(g9_19)
f7g0 := int64(f7) * int64(g0)
f7g1_2 := int64(f7_2) * int64(g1)
f7g2 := int64(f7) * int64(g2)
f7g3_38 := int64(f7_2) * int64(g3_19)
f7g4_19 := int64(f7) * int64(g4_19)
f7g5_38 := int64(f7_2) * int64(g5_19)
f7g6_19 := int64(f7) * int64(g6_19)
f7g7_38 := int64(f7_2) * int64(g7_19)
f7g8_19 := int64(f7) * int64(g8_19)
f7g9_38 := int64(f7_2) * int64(g9_19)
f8g0 := int64(f8) * int64(g0)
f8g1 := int64(f8) * int64(g1)
f8g2_19 := int64(f8) * int64(g2_19)
f8g3_19 := int64(f8) * int64(g3_19)
f8g4_19 := int64(f8) * int64(g4_19)
f8g5_19 := int64(f8) * int64(g5_19)
f8g6_19 := int64(f8) * int64(g6_19)
f8g7_19 := int64(f8) * int64(g7_19)
f8g8_19 := int64(f8) * int64(g8_19)
f8g9_19 := int64(f8) * int64(g9_19)
f9g0 := int64(f9) * int64(g0)
f9g1_38 := int64(f9_2) * int64(g1_19)
f9g2_19 := int64(f9) * int64(g2_19)
f9g3_38 := int64(f9_2) * int64(g3_19)
f9g4_19 := int64(f9) * int64(g4_19)
f9g5_38 := int64(f9_2) * int64(g5_19)
f9g6_19 := int64(f9) * int64(g6_19)
f9g7_38 := int64(f9_2) * int64(g7_19)
f9g8_19 := int64(f9) * int64(g8_19)
f9g9_38 := int64(f9_2) * int64(g9_19)
h0 := f0g0 + f1g9_38 + f2g8_19 + f3g7_38 + f4g6_19 + f5g5_38 + f6g4_19 + f7g3_38 + f8g2_19 + f9g1_38
h1 := f0g1 + f1g0 + f2g9_19 + f3g8_19 + f4g7_19 + f5g6_19 + f6g5_19 + f7g4_19 + f8g3_19 + f9g2_19
h2 := f0g2 + f1g1_2 + f2g0 + f3g9_38 + f4g8_19 + f5g7_38 + f6g6_19 + f7g5_38 + f8g4_19 + f9g3_38
h3 := f0g3 + f1g2 + f2g1 + f3g0 + f4g9_19 + f5g8_19 + f6g7_19 + f7g6_19 + f8g5_19 + f9g4_19
h4 := f0g4 + f1g3_2 + f2g2 + f3g1_2 + f4g0 + f5g9_38 + f6g8_19 + f7g7_38 + f8g6_19 + f9g5_38
h5 := f0g5 + f1g4 + f2g3 + f3g2 + f4g1 + f5g0 + f6g9_19 + f7g8_19 + f8g7_19 + f9g6_19
h6 := f0g6 + f1g5_2 + f2g4 + f3g3_2 + f4g2 + f5g1_2 + f6g0 + f7g9_38 + f8g8_19 + f9g7_38
h7 := f0g7 + f1g6 + f2g5 + f3g4 + f4g3 + f5g2 + f6g1 + f7g0 + f8g9_19 + f9g8_19
h8 := f0g8 + f1g7_2 + f2g6 + f3g5_2 + f4g4 + f5g3_2 + f6g2 + f7g1_2 + f8g0 + f9g9_38
h9 := f0g9 + f1g8 + f2g7 + f3g6 + f4g5 + f5g4 + f6g3 + f7g2 + f8g1 + f9g0
var carry [10]int64
// |h0| <= (1.1*1.1*2^52*(1+19+19+19+19)+1.1*1.1*2^50*(38+38+38+38+38))
// i.e. |h0| <= 1.2*2^59; narrower ranges for h2, h4, h6, h8
// |h1| <= (1.1*1.1*2^51*(1+1+19+19+19+19+19+19+19+19))
// i.e. |h1| <= 1.5*2^58; narrower ranges for h3, h5, h7, h9
carry[0] = (h0 + (1 << 25)) >> 26
h1 += carry[0]
h0 -= carry[0] << 26
carry[4] = (h4 + (1 << 25)) >> 26
h5 += carry[4]
h4 -= carry[4] << 26
// |h0| <= 2^25
// |h4| <= 2^25
// |h1| <= 1.51*2^58
// |h5| <= 1.51*2^58
carry[1] = (h1 + (1 << 24)) >> 25
h2 += carry[1]
h1 -= carry[1] << 25
carry[5] = (h5 + (1 << 24)) >> 25
h6 += carry[5]
h5 -= carry[5] << 25
// |h1| <= 2^24; from now on fits into int32
// |h5| <= 2^24; from now on fits into int32
// |h2| <= 1.21*2^59
// |h6| <= 1.21*2^59
carry[2] = (h2 + (1 << 25)) >> 26
h3 += carry[2]
h2 -= carry[2] << 26
carry[6] = (h6 + (1 << 25)) >> 26
h7 += carry[6]
h6 -= carry[6] << 26
// |h2| <= 2^25; from now on fits into int32 unchanged
// |h6| <= 2^25; from now on fits into int32 unchanged
// |h3| <= 1.51*2^58
// |h7| <= 1.51*2^58
carry[3] = (h3 + (1 << 24)) >> 25
h4 += carry[3]
h3 -= carry[3] << 25
carry[7] = (h7 + (1 << 24)) >> 25
h8 += carry[7]
h7 -= carry[7] << 25
// |h3| <= 2^24; from now on fits into int32 unchanged
// |h7| <= 2^24; from now on fits into int32 unchanged
// |h4| <= 1.52*2^33
// |h8| <= 1.52*2^33
carry[4] = (h4 + (1 << 25)) >> 26
h5 += carry[4]
h4 -= carry[4] << 26
carry[8] = (h8 + (1 << 25)) >> 26
h9 += carry[8]
h8 -= carry[8] << 26
// |h4| <= 2^25; from now on fits into int32 unchanged
// |h8| <= 2^25; from now on fits into int32 unchanged
// |h5| <= 1.01*2^24
// |h9| <= 1.51*2^58
carry[9] = (h9 + (1 << 24)) >> 25
h0 += carry[9] * 19
h9 -= carry[9] << 25
// |h9| <= 2^24; from now on fits into int32 unchanged
// |h0| <= 1.8*2^37
carry[0] = (h0 + (1 << 25)) >> 26
h1 += carry[0]
h0 -= carry[0] << 26
// |h0| <= 2^25; from now on fits into int32 unchanged
// |h1| <= 1.01*2^24
h[0] = int32(h0)
h[1] = int32(h1)
h[2] = int32(h2)
h[3] = int32(h3)
h[4] = int32(h4)
h[5] = int32(h5)
h[6] = int32(h6)
h[7] = int32(h7)
h[8] = int32(h8)
h[9] = int32(h9)
}
// feSquare calculates h = f*f. Can overlap h with f.
//
// Preconditions:
// |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
//
// Postconditions:
// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
func feSquare(h, f *fieldElement) {
f0 := f[0]
f1 := f[1]
f2 := f[2]
f3 := f[3]
f4 := f[4]
f5 := f[5]
f6 := f[6]
f7 := f[7]
f8 := f[8]
f9 := f[9]
f0_2 := 2 * f0
f1_2 := 2 * f1
f2_2 := 2 * f2
f3_2 := 2 * f3
f4_2 := 2 * f4
f5_2 := 2 * f5
f6_2 := 2 * f6
f7_2 := 2 * f7
f5_38 := 38 * f5 // 1.31*2^30
f6_19 := 19 * f6 // 1.31*2^30
f7_38 := 38 * f7 // 1.31*2^30
f8_19 := 19 * f8 // 1.31*2^30
f9_38 := 38 * f9 // 1.31*2^30
f0f0 := int64(f0) * int64(f0)
f0f1_2 := int64(f0_2) * int64(f1)
f0f2_2 := int64(f0_2) * int64(f2)
f0f3_2 := int64(f0_2) * int64(f3)
f0f4_2 := int64(f0_2) * int64(f4)
f0f5_2 := int64(f0_2) * int64(f5)
f0f6_2 := int64(f0_2) * int64(f6)
f0f7_2 := int64(f0_2) * int64(f7)
f0f8_2 := int64(f0_2) * int64(f8)
f0f9_2 := int64(f0_2) * int64(f9)
f1f1_2 := int64(f1_2) * int64(f1)
f1f2_2 := int64(f1_2) * int64(f2)
f1f3_4 := int64(f1_2) * int64(f3_2)
f1f4_2 := int64(f1_2) * int64(f4)
f1f5_4 := int64(f1_2) * int64(f5_2)
f1f6_2 := int64(f1_2) * int64(f6)
f1f7_4 := int64(f1_2) * int64(f7_2)
f1f8_2 := int64(f1_2) * int64(f8)
f1f9_76 := int64(f1_2) * int64(f9_38)
f2f2 := int64(f2) * int64(f2)
f2f3_2 := int64(f2_2) * int64(f3)
f2f4_2 := int64(f2_2) * int64(f4)
f2f5_2 := int64(f2_2) * int64(f5)
f2f6_2 := int64(f2_2) * int64(f6)
f2f7_2 := int64(f2_2) * int64(f7)
f2f8_38 := int64(f2_2) * int64(f8_19)
f2f9_38 := int64(f2) * int64(f9_38)
f3f3_2 := int64(f3_2) * int64(f3)
f3f4_2 := int64(f3_2) * int64(f4)
f3f5_4 := int64(f3_2) * int64(f5_2)
f3f6_2 := int64(f3_2) * int64(f6)
f3f7_76 := int64(f3_2) * int64(f7_38)
f3f8_38 := int64(f3_2) * int64(f8_19)
f3f9_76 := int64(f3_2) * int64(f9_38)
f4f4 := int64(f4) * int64(f4)
f4f5_2 := int64(f4_2) * int64(f5)
f4f6_38 := int64(f4_2) * int64(f6_19)
f4f7_38 := int64(f4) * int64(f7_38)
f4f8_38 := int64(f4_2) * int64(f8_19)
f4f9_38 := int64(f4) * int64(f9_38)
f5f5_38 := int64(f5) * int64(f5_38)
f5f6_38 := int64(f5_2) * int64(f6_19)
f5f7_76 := int64(f5_2) * int64(f7_38)
f5f8_38 := int64(f5_2) * int64(f8_19)
f5f9_76 := int64(f5_2) * int64(f9_38)
f6f6_19 := int64(f6) * int64(f6_19)
f6f7_38 := int64(f6) * int64(f7_38)
f6f8_38 := int64(f6_2) * int64(f8_19)
f6f9_38 := int64(f6) * int64(f9_38)
f7f7_38 := int64(f7) * int64(f7_38)
f7f8_38 := int64(f7_2) * int64(f8_19)
f7f9_76 := int64(f7_2) * int64(f9_38)
f8f8_19 := int64(f8) * int64(f8_19)
f8f9_38 := int64(f8) * int64(f9_38)
f9f9_38 := int64(f9) * int64(f9_38)
h0 := f0f0 + f1f9_76 + f2f8_38 + f3f7_76 + f4f6_38 + f5f5_38
h1 := f0f1_2 + f2f9_38 + f3f8_38 + f4f7_38 + f5f6_38
h2 := f0f2_2 + f1f1_2 + f3f9_76 + f4f8_38 + f5f7_76 + f6f6_19
h3 := f0f3_2 + f1f2_2 + f4f9_38 + f5f8_38 + f6f7_38
h4 := f0f4_2 + f1f3_4 + f2f2 + f5f9_76 + f6f8_38 + f7f7_38
h5 := f0f5_2 + f1f4_2 + f2f3_2 + f6f9_38 + f7f8_38
h6 := f0f6_2 + f1f5_4 + f2f4_2 + f3f3_2 + f7f9_76 + f8f8_19
h7 := f0f7_2 + f1f6_2 + f2f5_2 + f3f4_2 + f8f9_38
h8 := f0f8_2 + f1f7_4 + f2f6_2 + f3f5_4 + f4f4 + f9f9_38
h9 := f0f9_2 + f1f8_2 + f2f7_2 + f3f6_2 + f4f5_2
var carry [10]int64
carry[0] = (h0 + (1 << 25)) >> 26
h1 += carry[0]
h0 -= carry[0] << 26
carry[4] = (h4 + (1 << 25)) >> 26
h5 += carry[4]
h4 -= carry[4] << 26
carry[1] = (h1 + (1 << 24)) >> 25
h2 += carry[1]
h1 -= carry[1] << 25
carry[5] = (h5 + (1 << 24)) >> 25
h6 += carry[5]
h5 -= carry[5] << 25
carry[2] = (h2 + (1 << 25)) >> 26
h3 += carry[2]
h2 -= carry[2] << 26
carry[6] = (h6 + (1 << 25)) >> 26
h7 += carry[6]
h6 -= carry[6] << 26
carry[3] = (h3 + (1 << 24)) >> 25
h4 += carry[3]
h3 -= carry[3] << 25
carry[7] = (h7 + (1 << 24)) >> 25
h8 += carry[7]
h7 -= carry[7] << 25
carry[4] = (h4 + (1 << 25)) >> 26
h5 += carry[4]
h4 -= carry[4] << 26
carry[8] = (h8 + (1 << 25)) >> 26
h9 += carry[8]
h8 -= carry[8] << 26
carry[9] = (h9 + (1 << 24)) >> 25
h0 += carry[9] * 19
h9 -= carry[9] << 25
carry[0] = (h0 + (1 << 25)) >> 26
h1 += carry[0]
h0 -= carry[0] << 26
h[0] = int32(h0)
h[1] = int32(h1)
h[2] = int32(h2)
h[3] = int32(h3)
h[4] = int32(h4)
h[5] = int32(h5)
h[6] = int32(h6)
h[7] = int32(h7)
h[8] = int32(h8)
h[9] = int32(h9)
}
// feMul121666 calculates h = f * 121666. Can overlap h with f.
//
// Preconditions:
// |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
//
// Postconditions:
// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
func feMul121666(h, f *fieldElement) {
h0 := int64(f[0]) * 121666
h1 := int64(f[1]) * 121666
h2 := int64(f[2]) * 121666
h3 := int64(f[3]) * 121666
h4 := int64(f[4]) * 121666
h5 := int64(f[5]) * 121666
h6 := int64(f[6]) * 121666
h7 := int64(f[7]) * 121666
h8 := int64(f[8]) * 121666
h9 := int64(f[9]) * 121666
var carry [10]int64
carry[9] = (h9 + (1 << 24)) >> 25
h0 += carry[9] * 19
h9 -= carry[9] << 25
carry[1] = (h1 + (1 << 24)) >> 25
h2 += carry[1]
h1 -= carry[1] << 25
carry[3] = (h3 + (1 << 24)) >> 25
h4 += carry[3]
h3 -= carry[3] << 25
carry[5] = (h5 + (1 << 24)) >> 25
h6 += carry[5]
h5 -= carry[5] << 25
carry[7] = (h7 + (1 << 24)) >> 25
h8 += carry[7]
h7 -= carry[7] << 25
carry[0] = (h0 + (1 << 25)) >> 26
h1 += carry[0]
h0 -= carry[0] << 26
carry[2] = (h2 + (1 << 25)) >> 26
h3 += carry[2]
h2 -= carry[2] << 26
carry[4] = (h4 + (1 << 25)) >> 26
h5 += carry[4]
h4 -= carry[4] << 26
carry[6] = (h6 + (1 << 25)) >> 26
h7 += carry[6]
h6 -= carry[6] << 26
carry[8] = (h8 + (1 << 25)) >> 26
h9 += carry[8]
h8 -= carry[8] << 26
h[0] = int32(h0)
h[1] = int32(h1)
h[2] = int32(h2)
h[3] = int32(h3)
h[4] = int32(h4)
h[5] = int32(h5)
h[6] = int32(h6)
h[7] = int32(h7)
h[8] = int32(h8)
h[9] = int32(h9)
}
// feInvert sets out = z^-1.
func feInvert(out, z *fieldElement) {
var t0, t1, t2, t3 fieldElement
var i int
feSquare(&t0, z)
for i = 1; i < 1; i++ {
feSquare(&t0, &t0)
}
feSquare(&t1, &t0)
for i = 1; i < 2; i++ {
feSquare(&t1, &t1)
}
feMul(&t1, z, &t1)
feMul(&t0, &t0, &t1)
feSquare(&t2, &t0)
for i = 1; i < 1; i++ {
feSquare(&t2, &t2)
}
feMul(&t1, &t1, &t2)
feSquare(&t2, &t1)
for i = 1; i < 5; i++ {
feSquare(&t2, &t2)
}
feMul(&t1, &t2, &t1)
feSquare(&t2, &t1)
for i = 1; i < 10; i++ {
feSquare(&t2, &t2)
}
feMul(&t2, &t2, &t1)
feSquare(&t3, &t2)
for i = 1; i < 20; i++ {
feSquare(&t3, &t3)
}
feMul(&t2, &t3, &t2)
feSquare(&t2, &t2)
for i = 1; i < 10; i++ {
feSquare(&t2, &t2)
}
feMul(&t1, &t2, &t1)
feSquare(&t2, &t1)
for i = 1; i < 50; i++ {
feSquare(&t2, &t2)
}
feMul(&t2, &t2, &t1)
feSquare(&t3, &t2)
for i = 1; i < 100; i++ {
feSquare(&t3, &t3)
}
feMul(&t2, &t3, &t2)
feSquare(&t2, &t2)
for i = 1; i < 50; i++ {
feSquare(&t2, &t2)
}
feMul(&t1, &t2, &t1)
feSquare(&t1, &t1)
for i = 1; i < 5; i++ {
feSquare(&t1, &t1)
}
feMul(out, &t1, &t0)
}
func scalarMult(out, in, base *[32]byte) {
var e [32]byte
copy(e[:], in[:])
e[0] &= 248
e[31] &= 127
e[31] |= 64
var x1, x2, z2, x3, z3, tmp0, tmp1 fieldElement
feFromBytes(&x1, base)
feOne(&x2)
feCopy(&x3, &x1)
feOne(&z3)
swap := int32(0)
for pos := 254; pos >= 0; pos-- {
b := e[pos/8] >> uint(pos&7)
b &= 1
swap ^= int32(b)
feCSwap(&x2, &x3, swap)
feCSwap(&z2, &z3, swap)
swap = int32(b)
feSub(&tmp0, &x3, &z3)
feSub(&tmp1, &x2, &z2)
feAdd(&x2, &x2, &z2)
feAdd(&z2, &x3, &z3)
feMul(&z3, &tmp0, &x2)
feMul(&z2, &z2, &tmp1)
feSquare(&tmp0, &tmp1)
feSquare(&tmp1, &x2)
feAdd(&x3, &z3, &z2)
feSub(&z2, &z3, &z2)
feMul(&x2, &tmp1, &tmp0)
feSub(&tmp1, &tmp1, &tmp0)
feSquare(&z2, &z2)
feMul121666(&z3, &tmp1)
feSquare(&x3, &x3)
feAdd(&tmp0, &tmp0, &z3)
feMul(&z3, &x1, &z2)
feMul(&z2, &tmp1, &tmp0)
}
feCSwap(&x2, &x3, swap)
feCSwap(&z2, &z3, swap)
feInvert(&z2, &z2)
feMul(&x2, &x2, &z2)
feToBytes(out, &x2)
}

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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package curve25519
import (
"fmt"
"testing"
)
const expectedHex = "89161fde887b2b53de549af483940106ecc114d6982daa98256de23bdf77661a"
func TestBaseScalarMult(t *testing.T) {
var a, b [32]byte
in := &a
out := &b
a[0] = 1
for i := 0; i < 200; i++ {
ScalarBaseMult(out, in)
in, out = out, in
}
result := fmt.Sprintf("%x", in[:])
if result != expectedHex {
t.Errorf("incorrect result: got %s, want %s", result, expectedHex)
}
}
func BenchmarkScalarBaseMult(b *testing.B) {
var in, out [32]byte
in[0] = 1
b.SetBytes(32)
for i := 0; i < b.N; i++ {
ScalarBaseMult(&out, &in)
}
}

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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package curve25519 provides an implementation of scalar multiplication on
// the elliptic curve known as curve25519. See https://cr.yp.to/ecdh.html
package curve25519 // import "golang.org/x/crypto/curve25519"
// basePoint is the x coordinate of the generator of the curve.
var basePoint = [32]byte{9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
// ScalarMult sets dst to the product in*base where dst and base are the x
// coordinates of group points and all values are in little-endian form.
func ScalarMult(dst, in, base *[32]byte) {
scalarMult(dst, in, base)
}
// ScalarBaseMult sets dst to the product in*base where dst and base are the x
// coordinates of group points, base is the standard generator and all values
// are in little-endian form.
func ScalarBaseMult(dst, in *[32]byte) {
ScalarMult(dst, in, &basePoint)
}

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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This code was translated into a form compatible with 6a from the public
// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
// +build amd64,!gccgo,!appengine
#include "const_amd64.h"
// func freeze(inout *[5]uint64)
TEXT ·freeze(SB),7,$0-8
MOVQ inout+0(FP), DI
MOVQ 0(DI),SI
MOVQ 8(DI),DX
MOVQ 16(DI),CX
MOVQ 24(DI),R8
MOVQ 32(DI),R9
MOVQ $REDMASK51,AX
MOVQ AX,R10
SUBQ $18,R10
MOVQ $3,R11
REDUCELOOP:
MOVQ SI,R12
SHRQ $51,R12
ANDQ AX,SI
ADDQ R12,DX
MOVQ DX,R12
SHRQ $51,R12
ANDQ AX,DX
ADDQ R12,CX
MOVQ CX,R12
SHRQ $51,R12
ANDQ AX,CX
ADDQ R12,R8
MOVQ R8,R12
SHRQ $51,R12
ANDQ AX,R8
ADDQ R12,R9
MOVQ R9,R12
SHRQ $51,R12
ANDQ AX,R9
IMUL3Q $19,R12,R12
ADDQ R12,SI
SUBQ $1,R11
JA REDUCELOOP
MOVQ $1,R12
CMPQ R10,SI
CMOVQLT R11,R12
CMPQ AX,DX
CMOVQNE R11,R12
CMPQ AX,CX
CMOVQNE R11,R12
CMPQ AX,R8
CMOVQNE R11,R12
CMPQ AX,R9
CMOVQNE R11,R12
NEGQ R12
ANDQ R12,AX
ANDQ R12,R10
SUBQ R10,SI
SUBQ AX,DX
SUBQ AX,CX
SUBQ AX,R8
SUBQ AX,R9
MOVQ SI,0(DI)
MOVQ DX,8(DI)
MOVQ CX,16(DI)
MOVQ R8,24(DI)
MOVQ R9,32(DI)
RET

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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build amd64,!gccgo,!appengine
package curve25519
// These functions are implemented in the .s files. The names of the functions
// in the rest of the file are also taken from the SUPERCOP sources to help
// people following along.
//go:noescape
func cswap(inout *[5]uint64, v uint64)
//go:noescape
func ladderstep(inout *[5][5]uint64)
//go:noescape
func freeze(inout *[5]uint64)
//go:noescape
func mul(dest, a, b *[5]uint64)
//go:noescape
func square(out, in *[5]uint64)
// mladder uses a Montgomery ladder to calculate (xr/zr) *= s.
func mladder(xr, zr *[5]uint64, s *[32]byte) {
var work [5][5]uint64
work[0] = *xr
setint(&work[1], 1)
setint(&work[2], 0)
work[3] = *xr
setint(&work[4], 1)
j := uint(6)
var prevbit byte
for i := 31; i >= 0; i-- {
for j < 8 {
bit := ((*s)[i] >> j) & 1
swap := bit ^ prevbit
prevbit = bit
cswap(&work[1], uint64(swap))
ladderstep(&work)
j--
}
j = 7
}
*xr = work[1]
*zr = work[2]
}
func scalarMult(out, in, base *[32]byte) {
var e [32]byte
copy(e[:], (*in)[:])
e[0] &= 248
e[31] &= 127
e[31] |= 64
var t, z [5]uint64
unpack(&t, base)
mladder(&t, &z, &e)
invert(&z, &z)
mul(&t, &t, &z)
pack(out, &t)
}
func setint(r *[5]uint64, v uint64) {
r[0] = v
r[1] = 0
r[2] = 0
r[3] = 0
r[4] = 0
}
// unpack sets r = x where r consists of 5, 51-bit limbs in little-endian
// order.
func unpack(r *[5]uint64, x *[32]byte) {
r[0] = uint64(x[0]) |
uint64(x[1])<<8 |
uint64(x[2])<<16 |
uint64(x[3])<<24 |
uint64(x[4])<<32 |
uint64(x[5])<<40 |
uint64(x[6]&7)<<48
r[1] = uint64(x[6])>>3 |
uint64(x[7])<<5 |
uint64(x[8])<<13 |
uint64(x[9])<<21 |
uint64(x[10])<<29 |
uint64(x[11])<<37 |
uint64(x[12]&63)<<45
r[2] = uint64(x[12])>>6 |
uint64(x[13])<<2 |
uint64(x[14])<<10 |
uint64(x[15])<<18 |
uint64(x[16])<<26 |
uint64(x[17])<<34 |
uint64(x[18])<<42 |
uint64(x[19]&1)<<50
r[3] = uint64(x[19])>>1 |
uint64(x[20])<<7 |
uint64(x[21])<<15 |
uint64(x[22])<<23 |
uint64(x[23])<<31 |
uint64(x[24])<<39 |
uint64(x[25]&15)<<47
r[4] = uint64(x[25])>>4 |
uint64(x[26])<<4 |
uint64(x[27])<<12 |
uint64(x[28])<<20 |
uint64(x[29])<<28 |
uint64(x[30])<<36 |
uint64(x[31]&127)<<44
}
// pack sets out = x where out is the usual, little-endian form of the 5,
// 51-bit limbs in x.
func pack(out *[32]byte, x *[5]uint64) {
t := *x
freeze(&t)
out[0] = byte(t[0])
out[1] = byte(t[0] >> 8)
out[2] = byte(t[0] >> 16)
out[3] = byte(t[0] >> 24)
out[4] = byte(t[0] >> 32)
out[5] = byte(t[0] >> 40)
out[6] = byte(t[0] >> 48)
out[6] ^= byte(t[1]<<3) & 0xf8
out[7] = byte(t[1] >> 5)
out[8] = byte(t[1] >> 13)
out[9] = byte(t[1] >> 21)
out[10] = byte(t[1] >> 29)
out[11] = byte(t[1] >> 37)
out[12] = byte(t[1] >> 45)
out[12] ^= byte(t[2]<<6) & 0xc0
out[13] = byte(t[2] >> 2)
out[14] = byte(t[2] >> 10)
out[15] = byte(t[2] >> 18)
out[16] = byte(t[2] >> 26)
out[17] = byte(t[2] >> 34)
out[18] = byte(t[2] >> 42)
out[19] = byte(t[2] >> 50)
out[19] ^= byte(t[3]<<1) & 0xfe
out[20] = byte(t[3] >> 7)
out[21] = byte(t[3] >> 15)
out[22] = byte(t[3] >> 23)
out[23] = byte(t[3] >> 31)
out[24] = byte(t[3] >> 39)
out[25] = byte(t[3] >> 47)
out[25] ^= byte(t[4]<<4) & 0xf0
out[26] = byte(t[4] >> 4)
out[27] = byte(t[4] >> 12)
out[28] = byte(t[4] >> 20)
out[29] = byte(t[4] >> 28)
out[30] = byte(t[4] >> 36)
out[31] = byte(t[4] >> 44)
}
// invert calculates r = x^-1 mod p using Fermat's little theorem.
func invert(r *[5]uint64, x *[5]uint64) {
var z2, z9, z11, z2_5_0, z2_10_0, z2_20_0, z2_50_0, z2_100_0, t [5]uint64
square(&z2, x) /* 2 */
square(&t, &z2) /* 4 */
square(&t, &t) /* 8 */
mul(&z9, &t, x) /* 9 */
mul(&z11, &z9, &z2) /* 11 */
square(&t, &z11) /* 22 */
mul(&z2_5_0, &t, &z9) /* 2^5 - 2^0 = 31 */
square(&t, &z2_5_0) /* 2^6 - 2^1 */
for i := 1; i < 5; i++ { /* 2^20 - 2^10 */
square(&t, &t)
}
mul(&z2_10_0, &t, &z2_5_0) /* 2^10 - 2^0 */
square(&t, &z2_10_0) /* 2^11 - 2^1 */
for i := 1; i < 10; i++ { /* 2^20 - 2^10 */
square(&t, &t)
}
mul(&z2_20_0, &t, &z2_10_0) /* 2^20 - 2^0 */
square(&t, &z2_20_0) /* 2^21 - 2^1 */
for i := 1; i < 20; i++ { /* 2^40 - 2^20 */
square(&t, &t)
}
mul(&t, &t, &z2_20_0) /* 2^40 - 2^0 */
square(&t, &t) /* 2^41 - 2^1 */
for i := 1; i < 10; i++ { /* 2^50 - 2^10 */
square(&t, &t)
}
mul(&z2_50_0, &t, &z2_10_0) /* 2^50 - 2^0 */
square(&t, &z2_50_0) /* 2^51 - 2^1 */
for i := 1; i < 50; i++ { /* 2^100 - 2^50 */
square(&t, &t)
}
mul(&z2_100_0, &t, &z2_50_0) /* 2^100 - 2^0 */
square(&t, &z2_100_0) /* 2^101 - 2^1 */
for i := 1; i < 100; i++ { /* 2^200 - 2^100 */
square(&t, &t)
}
mul(&t, &t, &z2_100_0) /* 2^200 - 2^0 */
square(&t, &t) /* 2^201 - 2^1 */
for i := 1; i < 50; i++ { /* 2^250 - 2^50 */
square(&t, &t)
}
mul(&t, &t, &z2_50_0) /* 2^250 - 2^0 */
square(&t, &t) /* 2^251 - 2^1 */
square(&t, &t) /* 2^252 - 2^2 */
square(&t, &t) /* 2^253 - 2^3 */
square(&t, &t) /* 2^254 - 2^4 */
square(&t, &t) /* 2^255 - 2^5 */
mul(r, &t, &z11) /* 2^255 - 21 */
}

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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This code was translated into a form compatible with 6a from the public
// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
// +build amd64,!gccgo,!appengine
#include "const_amd64.h"
// func mul(dest, a, b *[5]uint64)
TEXT ·mul(SB),0,$16-24
MOVQ dest+0(FP), DI
MOVQ a+8(FP), SI
MOVQ b+16(FP), DX
MOVQ DX,CX
MOVQ 24(SI),DX
IMUL3Q $19,DX,AX
MOVQ AX,0(SP)
MULQ 16(CX)
MOVQ AX,R8
MOVQ DX,R9
MOVQ 32(SI),DX
IMUL3Q $19,DX,AX
MOVQ AX,8(SP)
MULQ 8(CX)
ADDQ AX,R8
ADCQ DX,R9
MOVQ 0(SI),AX
MULQ 0(CX)
ADDQ AX,R8
ADCQ DX,R9
MOVQ 0(SI),AX
MULQ 8(CX)
MOVQ AX,R10
MOVQ DX,R11
MOVQ 0(SI),AX
MULQ 16(CX)
MOVQ AX,R12
MOVQ DX,R13
MOVQ 0(SI),AX
MULQ 24(CX)
MOVQ AX,R14
MOVQ DX,R15
MOVQ 0(SI),AX
MULQ 32(CX)
MOVQ AX,BX
MOVQ DX,BP
MOVQ 8(SI),AX
MULQ 0(CX)
ADDQ AX,R10
ADCQ DX,R11
MOVQ 8(SI),AX
MULQ 8(CX)
ADDQ AX,R12
ADCQ DX,R13
MOVQ 8(SI),AX
MULQ 16(CX)
ADDQ AX,R14
ADCQ DX,R15
MOVQ 8(SI),AX
MULQ 24(CX)
ADDQ AX,BX
ADCQ DX,BP
MOVQ 8(SI),DX
IMUL3Q $19,DX,AX
MULQ 32(CX)
ADDQ AX,R8
ADCQ DX,R9
MOVQ 16(SI),AX
MULQ 0(CX)
ADDQ AX,R12
ADCQ DX,R13
MOVQ 16(SI),AX
MULQ 8(CX)
ADDQ AX,R14
ADCQ DX,R15
MOVQ 16(SI),AX
MULQ 16(CX)
ADDQ AX,BX
ADCQ DX,BP
MOVQ 16(SI),DX
IMUL3Q $19,DX,AX
MULQ 24(CX)
ADDQ AX,R8
ADCQ DX,R9
MOVQ 16(SI),DX
IMUL3Q $19,DX,AX
MULQ 32(CX)
ADDQ AX,R10
ADCQ DX,R11
MOVQ 24(SI),AX
MULQ 0(CX)
ADDQ AX,R14
ADCQ DX,R15
MOVQ 24(SI),AX
MULQ 8(CX)
ADDQ AX,BX
ADCQ DX,BP
MOVQ 0(SP),AX
MULQ 24(CX)
ADDQ AX,R10
ADCQ DX,R11
MOVQ 0(SP),AX
MULQ 32(CX)
ADDQ AX,R12
ADCQ DX,R13
MOVQ 32(SI),AX
MULQ 0(CX)
ADDQ AX,BX
ADCQ DX,BP
MOVQ 8(SP),AX
MULQ 16(CX)
ADDQ AX,R10
ADCQ DX,R11
MOVQ 8(SP),AX
MULQ 24(CX)
ADDQ AX,R12
ADCQ DX,R13
MOVQ 8(SP),AX
MULQ 32(CX)
ADDQ AX,R14
ADCQ DX,R15
MOVQ $REDMASK51,SI
SHLQ $13,R9:R8
ANDQ SI,R8
SHLQ $13,R11:R10
ANDQ SI,R10
ADDQ R9,R10
SHLQ $13,R13:R12
ANDQ SI,R12
ADDQ R11,R12
SHLQ $13,R15:R14
ANDQ SI,R14
ADDQ R13,R14
SHLQ $13,BP:BX
ANDQ SI,BX
ADDQ R15,BX
IMUL3Q $19,BP,DX
ADDQ DX,R8
MOVQ R8,DX
SHRQ $51,DX
ADDQ R10,DX
MOVQ DX,CX
SHRQ $51,DX
ANDQ SI,R8
ADDQ R12,DX
MOVQ DX,R9
SHRQ $51,DX
ANDQ SI,CX
ADDQ R14,DX
MOVQ DX,AX
SHRQ $51,DX
ANDQ SI,R9
ADDQ BX,DX
MOVQ DX,R10
SHRQ $51,DX
ANDQ SI,AX
IMUL3Q $19,DX,DX
ADDQ DX,R8
ANDQ SI,R10
MOVQ R8,0(DI)
MOVQ CX,8(DI)
MOVQ R9,16(DI)
MOVQ AX,24(DI)
MOVQ R10,32(DI)
RET

View File

@ -0,0 +1,132 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This code was translated into a form compatible with 6a from the public
// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
// +build amd64,!gccgo,!appengine
#include "const_amd64.h"
// func square(out, in *[5]uint64)
TEXT ·square(SB),7,$0-16
MOVQ out+0(FP), DI
MOVQ in+8(FP), SI
MOVQ 0(SI),AX
MULQ 0(SI)
MOVQ AX,CX
MOVQ DX,R8
MOVQ 0(SI),AX
SHLQ $1,AX
MULQ 8(SI)
MOVQ AX,R9
MOVQ DX,R10
MOVQ 0(SI),AX
SHLQ $1,AX
MULQ 16(SI)
MOVQ AX,R11
MOVQ DX,R12
MOVQ 0(SI),AX
SHLQ $1,AX
MULQ 24(SI)
MOVQ AX,R13
MOVQ DX,R14
MOVQ 0(SI),AX
SHLQ $1,AX
MULQ 32(SI)
MOVQ AX,R15
MOVQ DX,BX
MOVQ 8(SI),AX
MULQ 8(SI)
ADDQ AX,R11
ADCQ DX,R12
MOVQ 8(SI),AX
SHLQ $1,AX
MULQ 16(SI)
ADDQ AX,R13
ADCQ DX,R14
MOVQ 8(SI),AX
SHLQ $1,AX
MULQ 24(SI)
ADDQ AX,R15
ADCQ DX,BX
MOVQ 8(SI),DX
IMUL3Q $38,DX,AX
MULQ 32(SI)
ADDQ AX,CX
ADCQ DX,R8
MOVQ 16(SI),AX
MULQ 16(SI)
ADDQ AX,R15
ADCQ DX,BX
MOVQ 16(SI),DX
IMUL3Q $38,DX,AX
MULQ 24(SI)
ADDQ AX,CX
ADCQ DX,R8
MOVQ 16(SI),DX
IMUL3Q $38,DX,AX
MULQ 32(SI)
ADDQ AX,R9
ADCQ DX,R10
MOVQ 24(SI),DX
IMUL3Q $19,DX,AX
MULQ 24(SI)
ADDQ AX,R9
ADCQ DX,R10
MOVQ 24(SI),DX
IMUL3Q $38,DX,AX
MULQ 32(SI)
ADDQ AX,R11
ADCQ DX,R12
MOVQ 32(SI),DX
IMUL3Q $19,DX,AX
MULQ 32(SI)
ADDQ AX,R13
ADCQ DX,R14
MOVQ $REDMASK51,SI
SHLQ $13,R8:CX
ANDQ SI,CX
SHLQ $13,R10:R9
ANDQ SI,R9
ADDQ R8,R9
SHLQ $13,R12:R11
ANDQ SI,R11
ADDQ R10,R11
SHLQ $13,R14:R13
ANDQ SI,R13
ADDQ R12,R13
SHLQ $13,BX:R15
ANDQ SI,R15
ADDQ R14,R15
IMUL3Q $19,BX,DX
ADDQ DX,CX
MOVQ CX,DX
SHRQ $51,DX
ADDQ R9,DX
ANDQ SI,CX
MOVQ DX,R8
SHRQ $51,DX
ADDQ R11,DX
ANDQ SI,R8
MOVQ DX,R9
SHRQ $51,DX
ADDQ R13,DX
ANDQ SI,R9
MOVQ DX,AX
SHRQ $51,DX
ADDQ R15,DX
ANDQ SI,AX
MOVQ DX,R10
SHRQ $51,DX
IMUL3Q $19,DX,DX
ADDQ DX,CX
ANDQ SI,R10
MOVQ CX,0(DI)
MOVQ R8,8(DI)
MOVQ R9,16(DI)
MOVQ AX,24(DI)
MOVQ R10,32(DI)
RET

View File

@ -3,7 +3,7 @@
// license that can be found in the LICENSE file.
// Package ed25519 implements the Ed25519 signature algorithm. See
// http://ed25519.cr.yp.to/.
// https://ed25519.cr.yp.to/.
//
// These functions are also compatible with the “Ed25519” function defined in
// https://tools.ietf.org/html/draft-irtf-cfrg-eddsa-05.
@ -13,10 +13,10 @@ package ed25519
// from SUPERCOP.
import (
"bytes"
"crypto"
cryptorand "crypto/rand"
"crypto/sha512"
"crypto/subtle"
"errors"
"io"
"strconv"
@ -177,5 +177,5 @@ func Verify(publicKey PublicKey, message, sig []byte) bool {
var checkR [32]byte
R.ToBytes(&checkR)
return subtle.ConstantTimeCompare(sig[:32], checkR[:]) == 1
return bytes.Equal(sig[:32], checkR[:])
}

View File

@ -91,7 +91,7 @@ func TestCryptoSigner(t *testing.T) {
func TestGolden(t *testing.T) {
// sign.input.gz is a selection of test cases from
// http://ed25519.cr.yp.to/python/sign.input
// https://ed25519.cr.yp.to/python/sign.input
testDataZ, err := os.Open("testdata/sign.input.gz")
if err != nil {
t.Fatal(err)

View File

@ -0,0 +1,683 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package agent implements the ssh-agent protocol, and provides both
// a client and a server. The client can talk to a standard ssh-agent
// that uses UNIX sockets, and one could implement an alternative
// ssh-agent process using the sample server.
//
// References:
// [PROTOCOL.agent]: http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/PROTOCOL.agent?rev=HEAD
package agent // import "golang.org/x/crypto/ssh/agent"
import (
"bytes"
"crypto/dsa"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rsa"
"encoding/base64"
"encoding/binary"
"errors"
"fmt"
"io"
"math/big"
"sync"
"golang.org/x/crypto/ed25519"
"golang.org/x/crypto/ssh"
)
// Agent represents the capabilities of an ssh-agent.
type Agent interface {
// List returns the identities known to the agent.
List() ([]*Key, error)
// Sign has the agent sign the data using a protocol 2 key as defined
// in [PROTOCOL.agent] section 2.6.2.
Sign(key ssh.PublicKey, data []byte) (*ssh.Signature, error)
// Add adds a private key to the agent.
Add(key AddedKey) error
// Remove removes all identities with the given public key.
Remove(key ssh.PublicKey) error
// RemoveAll removes all identities.
RemoveAll() error
// Lock locks the agent. Sign and Remove will fail, and List will empty an empty list.
Lock(passphrase []byte) error
// Unlock undoes the effect of Lock
Unlock(passphrase []byte) error
// Signers returns signers for all the known keys.
Signers() ([]ssh.Signer, error)
}
// ConstraintExtension describes an optional constraint defined by users.
type ConstraintExtension struct {
// ExtensionName consist of a UTF-8 string suffixed by the
// implementation domain following the naming scheme defined
// in Section 4.2 of [RFC4251], e.g. "foo@example.com".
ExtensionName string
// ExtensionDetails contains the actual content of the extended
// constraint.
ExtensionDetails []byte
}
// AddedKey describes an SSH key to be added to an Agent.
type AddedKey struct {
// PrivateKey must be a *rsa.PrivateKey, *dsa.PrivateKey or
// *ecdsa.PrivateKey, which will be inserted into the agent.
PrivateKey interface{}
// Certificate, if not nil, is communicated to the agent and will be
// stored with the key.
Certificate *ssh.Certificate
// Comment is an optional, free-form string.
Comment string
// LifetimeSecs, if not zero, is the number of seconds that the
// agent will store the key for.
LifetimeSecs uint32
// ConfirmBeforeUse, if true, requests that the agent confirm with the
// user before each use of this key.
ConfirmBeforeUse bool
// ConstraintExtensions are the experimental or private-use constraints
// defined by users.
ConstraintExtensions []ConstraintExtension
}
// See [PROTOCOL.agent], section 3.
const (
agentRequestV1Identities = 1
agentRemoveAllV1Identities = 9
// 3.2 Requests from client to agent for protocol 2 key operations
agentAddIdentity = 17
agentRemoveIdentity = 18
agentRemoveAllIdentities = 19
agentAddIdConstrained = 25
// 3.3 Key-type independent requests from client to agent
agentAddSmartcardKey = 20
agentRemoveSmartcardKey = 21
agentLock = 22
agentUnlock = 23
agentAddSmartcardKeyConstrained = 26
// 3.7 Key constraint identifiers
agentConstrainLifetime = 1
agentConstrainConfirm = 2
agentConstrainExtension = 3
)
// maxAgentResponseBytes is the maximum agent reply size that is accepted. This
// is a sanity check, not a limit in the spec.
const maxAgentResponseBytes = 16 << 20
// Agent messages:
// These structures mirror the wire format of the corresponding ssh agent
// messages found in [PROTOCOL.agent].
// 3.4 Generic replies from agent to client
const agentFailure = 5
type failureAgentMsg struct{}
const agentSuccess = 6
type successAgentMsg struct{}
// See [PROTOCOL.agent], section 2.5.2.
const agentRequestIdentities = 11
type requestIdentitiesAgentMsg struct{}
// See [PROTOCOL.agent], section 2.5.2.
const agentIdentitiesAnswer = 12
type identitiesAnswerAgentMsg struct {
NumKeys uint32 `sshtype:"12"`
Keys []byte `ssh:"rest"`
}
// See [PROTOCOL.agent], section 2.6.2.
const agentSignRequest = 13
type signRequestAgentMsg struct {
KeyBlob []byte `sshtype:"13"`
Data []byte
Flags uint32
}
// See [PROTOCOL.agent], section 2.6.2.
// 3.6 Replies from agent to client for protocol 2 key operations
const agentSignResponse = 14
type signResponseAgentMsg struct {
SigBlob []byte `sshtype:"14"`
}
type publicKey struct {
Format string
Rest []byte `ssh:"rest"`
}
// 3.7 Key constraint identifiers
type constrainLifetimeAgentMsg struct {
LifetimeSecs uint32 `sshtype:"1"`
}
type constrainExtensionAgentMsg struct {
ExtensionName string `sshtype:"3"`
ExtensionDetails []byte
// Rest is a field used for parsing, not part of message
Rest []byte `ssh:"rest"`
}
// Key represents a protocol 2 public key as defined in
// [PROTOCOL.agent], section 2.5.2.
type Key struct {
Format string
Blob []byte
Comment string
}
func clientErr(err error) error {
return fmt.Errorf("agent: client error: %v", err)
}
// String returns the storage form of an agent key with the format, base64
// encoded serialized key, and the comment if it is not empty.
func (k *Key) String() string {
s := string(k.Format) + " " + base64.StdEncoding.EncodeToString(k.Blob)
if k.Comment != "" {
s += " " + k.Comment
}
return s
}
// Type returns the public key type.
func (k *Key) Type() string {
return k.Format
}
// Marshal returns key blob to satisfy the ssh.PublicKey interface.
func (k *Key) Marshal() []byte {
return k.Blob
}
// Verify satisfies the ssh.PublicKey interface.
func (k *Key) Verify(data []byte, sig *ssh.Signature) error {
pubKey, err := ssh.ParsePublicKey(k.Blob)
if err != nil {
return fmt.Errorf("agent: bad public key: %v", err)
}
return pubKey.Verify(data, sig)
}
type wireKey struct {
Format string
Rest []byte `ssh:"rest"`
}
func parseKey(in []byte) (out *Key, rest []byte, err error) {
var record struct {
Blob []byte
Comment string
Rest []byte `ssh:"rest"`
}
if err := ssh.Unmarshal(in, &record); err != nil {
return nil, nil, err
}
var wk wireKey
if err := ssh.Unmarshal(record.Blob, &wk); err != nil {
return nil, nil, err
}
return &Key{
Format: wk.Format,
Blob: record.Blob,
Comment: record.Comment,
}, record.Rest, nil
}
// client is a client for an ssh-agent process.
type client struct {
// conn is typically a *net.UnixConn
conn io.ReadWriter
// mu is used to prevent concurrent access to the agent
mu sync.Mutex
}
// NewClient returns an Agent that talks to an ssh-agent process over
// the given connection.
func NewClient(rw io.ReadWriter) Agent {
return &client{conn: rw}
}
// call sends an RPC to the agent. On success, the reply is
// unmarshaled into reply and replyType is set to the first byte of
// the reply, which contains the type of the message.
func (c *client) call(req []byte) (reply interface{}, err error) {
c.mu.Lock()
defer c.mu.Unlock()
msg := make([]byte, 4+len(req))
binary.BigEndian.PutUint32(msg, uint32(len(req)))
copy(msg[4:], req)
if _, err = c.conn.Write(msg); err != nil {
return nil, clientErr(err)
}
var respSizeBuf [4]byte
if _, err = io.ReadFull(c.conn, respSizeBuf[:]); err != nil {
return nil, clientErr(err)
}
respSize := binary.BigEndian.Uint32(respSizeBuf[:])
if respSize > maxAgentResponseBytes {
return nil, clientErr(err)
}
buf := make([]byte, respSize)
if _, err = io.ReadFull(c.conn, buf); err != nil {
return nil, clientErr(err)
}
reply, err = unmarshal(buf)
if err != nil {
return nil, clientErr(err)
}
return reply, err
}
func (c *client) simpleCall(req []byte) error {
resp, err := c.call(req)
if err != nil {
return err
}
if _, ok := resp.(*successAgentMsg); ok {
return nil
}
return errors.New("agent: failure")
}
func (c *client) RemoveAll() error {
return c.simpleCall([]byte{agentRemoveAllIdentities})
}
func (c *client) Remove(key ssh.PublicKey) error {
req := ssh.Marshal(&agentRemoveIdentityMsg{
KeyBlob: key.Marshal(),
})
return c.simpleCall(req)
}
func (c *client) Lock(passphrase []byte) error {
req := ssh.Marshal(&agentLockMsg{
Passphrase: passphrase,
})
return c.simpleCall(req)
}
func (c *client) Unlock(passphrase []byte) error {
req := ssh.Marshal(&agentUnlockMsg{
Passphrase: passphrase,
})
return c.simpleCall(req)
}
// List returns the identities known to the agent.
func (c *client) List() ([]*Key, error) {
// see [PROTOCOL.agent] section 2.5.2.
req := []byte{agentRequestIdentities}
msg, err := c.call(req)
if err != nil {
return nil, err
}
switch msg := msg.(type) {
case *identitiesAnswerAgentMsg:
if msg.NumKeys > maxAgentResponseBytes/8 {
return nil, errors.New("agent: too many keys in agent reply")
}
keys := make([]*Key, msg.NumKeys)
data := msg.Keys
for i := uint32(0); i < msg.NumKeys; i++ {
var key *Key
var err error
if key, data, err = parseKey(data); err != nil {
return nil, err
}
keys[i] = key
}
return keys, nil
case *failureAgentMsg:
return nil, errors.New("agent: failed to list keys")
}
panic("unreachable")
}
// Sign has the agent sign the data using a protocol 2 key as defined
// in [PROTOCOL.agent] section 2.6.2.
func (c *client) Sign(key ssh.PublicKey, data []byte) (*ssh.Signature, error) {
req := ssh.Marshal(signRequestAgentMsg{
KeyBlob: key.Marshal(),
Data: data,
})
msg, err := c.call(req)
if err != nil {
return nil, err
}
switch msg := msg.(type) {
case *signResponseAgentMsg:
var sig ssh.Signature
if err := ssh.Unmarshal(msg.SigBlob, &sig); err != nil {
return nil, err
}
return &sig, nil
case *failureAgentMsg:
return nil, errors.New("agent: failed to sign challenge")
}
panic("unreachable")
}
// unmarshal parses an agent message in packet, returning the parsed
// form and the message type of packet.
func unmarshal(packet []byte) (interface{}, error) {
if len(packet) < 1 {
return nil, errors.New("agent: empty packet")
}
var msg interface{}
switch packet[0] {
case agentFailure:
return new(failureAgentMsg), nil
case agentSuccess:
return new(successAgentMsg), nil
case agentIdentitiesAnswer:
msg = new(identitiesAnswerAgentMsg)
case agentSignResponse:
msg = new(signResponseAgentMsg)
case agentV1IdentitiesAnswer:
msg = new(agentV1IdentityMsg)
default:
return nil, fmt.Errorf("agent: unknown type tag %d", packet[0])
}
if err := ssh.Unmarshal(packet, msg); err != nil {
return nil, err
}
return msg, nil
}
type rsaKeyMsg struct {
Type string `sshtype:"17|25"`
N *big.Int
E *big.Int
D *big.Int
Iqmp *big.Int // IQMP = Inverse Q Mod P
P *big.Int
Q *big.Int
Comments string
Constraints []byte `ssh:"rest"`
}
type dsaKeyMsg struct {
Type string `sshtype:"17|25"`
P *big.Int
Q *big.Int
G *big.Int
Y *big.Int
X *big.Int
Comments string
Constraints []byte `ssh:"rest"`
}
type ecdsaKeyMsg struct {
Type string `sshtype:"17|25"`
Curve string
KeyBytes []byte
D *big.Int
Comments string
Constraints []byte `ssh:"rest"`
}
type ed25519KeyMsg struct {
Type string `sshtype:"17|25"`
Pub []byte
Priv []byte
Comments string
Constraints []byte `ssh:"rest"`
}
// Insert adds a private key to the agent.
func (c *client) insertKey(s interface{}, comment string, constraints []byte) error {
var req []byte
switch k := s.(type) {
case *rsa.PrivateKey:
if len(k.Primes) != 2 {
return fmt.Errorf("agent: unsupported RSA key with %d primes", len(k.Primes))
}
k.Precompute()
req = ssh.Marshal(rsaKeyMsg{
Type: ssh.KeyAlgoRSA,
N: k.N,
E: big.NewInt(int64(k.E)),
D: k.D,
Iqmp: k.Precomputed.Qinv,
P: k.Primes[0],
Q: k.Primes[1],
Comments: comment,
Constraints: constraints,
})
case *dsa.PrivateKey:
req = ssh.Marshal(dsaKeyMsg{
Type: ssh.KeyAlgoDSA,
P: k.P,
Q: k.Q,
G: k.G,
Y: k.Y,
X: k.X,
Comments: comment,
Constraints: constraints,
})
case *ecdsa.PrivateKey:
nistID := fmt.Sprintf("nistp%d", k.Params().BitSize)
req = ssh.Marshal(ecdsaKeyMsg{
Type: "ecdsa-sha2-" + nistID,
Curve: nistID,
KeyBytes: elliptic.Marshal(k.Curve, k.X, k.Y),
D: k.D,
Comments: comment,
Constraints: constraints,
})
case *ed25519.PrivateKey:
req = ssh.Marshal(ed25519KeyMsg{
Type: ssh.KeyAlgoED25519,
Pub: []byte(*k)[32:],
Priv: []byte(*k),
Comments: comment,
Constraints: constraints,
})
default:
return fmt.Errorf("agent: unsupported key type %T", s)
}
// if constraints are present then the message type needs to be changed.
if len(constraints) != 0 {
req[0] = agentAddIdConstrained
}
resp, err := c.call(req)
if err != nil {
return err
}
if _, ok := resp.(*successAgentMsg); ok {
return nil
}
return errors.New("agent: failure")
}
type rsaCertMsg struct {
Type string `sshtype:"17|25"`
CertBytes []byte
D *big.Int
Iqmp *big.Int // IQMP = Inverse Q Mod P
P *big.Int
Q *big.Int
Comments string
Constraints []byte `ssh:"rest"`
}
type dsaCertMsg struct {
Type string `sshtype:"17|25"`
CertBytes []byte
X *big.Int
Comments string
Constraints []byte `ssh:"rest"`
}
type ecdsaCertMsg struct {
Type string `sshtype:"17|25"`
CertBytes []byte
D *big.Int
Comments string
Constraints []byte `ssh:"rest"`
}
type ed25519CertMsg struct {
Type string `sshtype:"17|25"`
CertBytes []byte
Pub []byte
Priv []byte
Comments string
Constraints []byte `ssh:"rest"`
}
// Add adds a private key to the agent. If a certificate is given,
// that certificate is added instead as public key.
func (c *client) Add(key AddedKey) error {
var constraints []byte
if secs := key.LifetimeSecs; secs != 0 {
constraints = append(constraints, ssh.Marshal(constrainLifetimeAgentMsg{secs})...)
}
if key.ConfirmBeforeUse {
constraints = append(constraints, agentConstrainConfirm)
}
if cert := key.Certificate; cert == nil {
return c.insertKey(key.PrivateKey, key.Comment, constraints)
} else {
return c.insertCert(key.PrivateKey, cert, key.Comment, constraints)
}
}
func (c *client) insertCert(s interface{}, cert *ssh.Certificate, comment string, constraints []byte) error {
var req []byte
switch k := s.(type) {
case *rsa.PrivateKey:
if len(k.Primes) != 2 {
return fmt.Errorf("agent: unsupported RSA key with %d primes", len(k.Primes))
}
k.Precompute()
req = ssh.Marshal(rsaCertMsg{
Type: cert.Type(),
CertBytes: cert.Marshal(),
D: k.D,
Iqmp: k.Precomputed.Qinv,
P: k.Primes[0],
Q: k.Primes[1],
Comments: comment,
Constraints: constraints,
})
case *dsa.PrivateKey:
req = ssh.Marshal(dsaCertMsg{
Type: cert.Type(),
CertBytes: cert.Marshal(),
X: k.X,
Comments: comment,
Constraints: constraints,
})
case *ecdsa.PrivateKey:
req = ssh.Marshal(ecdsaCertMsg{
Type: cert.Type(),
CertBytes: cert.Marshal(),
D: k.D,
Comments: comment,
Constraints: constraints,
})
case *ed25519.PrivateKey:
req = ssh.Marshal(ed25519CertMsg{
Type: cert.Type(),
CertBytes: cert.Marshal(),
Pub: []byte(*k)[32:],
Priv: []byte(*k),
Comments: comment,
Constraints: constraints,
})
default:
return fmt.Errorf("agent: unsupported key type %T", s)
}
// if constraints are present then the message type needs to be changed.
if len(constraints) != 0 {
req[0] = agentAddIdConstrained
}
signer, err := ssh.NewSignerFromKey(s)
if err != nil {
return err
}
if bytes.Compare(cert.Key.Marshal(), signer.PublicKey().Marshal()) != 0 {
return errors.New("agent: signer and cert have different public key")
}
resp, err := c.call(req)
if err != nil {
return err
}
if _, ok := resp.(*successAgentMsg); ok {
return nil
}
return errors.New("agent: failure")
}
// Signers provides a callback for client authentication.
func (c *client) Signers() ([]ssh.Signer, error) {
keys, err := c.List()
if err != nil {
return nil, err
}
var result []ssh.Signer
for _, k := range keys {
result = append(result, &agentKeyringSigner{c, k})
}
return result, nil
}
type agentKeyringSigner struct {
agent *client
pub ssh.PublicKey
}
func (s *agentKeyringSigner) PublicKey() ssh.PublicKey {
return s.pub
}
func (s *agentKeyringSigner) Sign(rand io.Reader, data []byte) (*ssh.Signature, error) {
// The agent has its own entropy source, so the rand argument is ignored.
return s.agent.Sign(s.pub, data)
}

View File

@ -0,0 +1,379 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package agent
import (
"bytes"
"crypto/rand"
"errors"
"net"
"os"
"os/exec"
"path/filepath"
"strconv"
"testing"
"time"
"golang.org/x/crypto/ssh"
)
// startOpenSSHAgent executes ssh-agent, and returns an Agent interface to it.
func startOpenSSHAgent(t *testing.T) (client Agent, socket string, cleanup func()) {
if testing.Short() {
// ssh-agent is not always available, and the key
// types supported vary by platform.
t.Skip("skipping test due to -short")
}
bin, err := exec.LookPath("ssh-agent")
if err != nil {
t.Skip("could not find ssh-agent")
}
cmd := exec.Command(bin, "-s")
out, err := cmd.Output()
if err != nil {
t.Fatalf("cmd.Output: %v", err)
}
/* Output looks like:
SSH_AUTH_SOCK=/tmp/ssh-P65gpcqArqvH/agent.15541; export SSH_AUTH_SOCK;
SSH_AGENT_PID=15542; export SSH_AGENT_PID;
echo Agent pid 15542;
*/
fields := bytes.Split(out, []byte(";"))
line := bytes.SplitN(fields[0], []byte("="), 2)
line[0] = bytes.TrimLeft(line[0], "\n")
if string(line[0]) != "SSH_AUTH_SOCK" {
t.Fatalf("could not find key SSH_AUTH_SOCK in %q", fields[0])
}
socket = string(line[1])
line = bytes.SplitN(fields[2], []byte("="), 2)
line[0] = bytes.TrimLeft(line[0], "\n")
if string(line[0]) != "SSH_AGENT_PID" {
t.Fatalf("could not find key SSH_AGENT_PID in %q", fields[2])
}
pidStr := line[1]
pid, err := strconv.Atoi(string(pidStr))
if err != nil {
t.Fatalf("Atoi(%q): %v", pidStr, err)
}
conn, err := net.Dial("unix", string(socket))
if err != nil {
t.Fatalf("net.Dial: %v", err)
}
ac := NewClient(conn)
return ac, socket, func() {
proc, _ := os.FindProcess(pid)
if proc != nil {
proc.Kill()
}
conn.Close()
os.RemoveAll(filepath.Dir(socket))
}
}
// startKeyringAgent uses Keyring to simulate a ssh-agent Server and returns a client.
func startKeyringAgent(t *testing.T) (client Agent, cleanup func()) {
c1, c2, err := netPipe()
if err != nil {
t.Fatalf("netPipe: %v", err)
}
go ServeAgent(NewKeyring(), c2)
return NewClient(c1), func() {
c1.Close()
c2.Close()
}
}
func testOpenSSHAgent(t *testing.T, key interface{}, cert *ssh.Certificate, lifetimeSecs uint32) {
agent, _, cleanup := startOpenSSHAgent(t)
defer cleanup()
testAgentInterface(t, agent, key, cert, lifetimeSecs)
}
func testKeyringAgent(t *testing.T, key interface{}, cert *ssh.Certificate, lifetimeSecs uint32) {
agent, cleanup := startKeyringAgent(t)
defer cleanup()
testAgentInterface(t, agent, key, cert, lifetimeSecs)
}
func testAgentInterface(t *testing.T, agent Agent, key interface{}, cert *ssh.Certificate, lifetimeSecs uint32) {
signer, err := ssh.NewSignerFromKey(key)
if err != nil {
t.Fatalf("NewSignerFromKey(%T): %v", key, err)
}
// The agent should start up empty.
if keys, err := agent.List(); err != nil {
t.Fatalf("RequestIdentities: %v", err)
} else if len(keys) > 0 {
t.Fatalf("got %d keys, want 0: %v", len(keys), keys)
}
// Attempt to insert the key, with certificate if specified.
var pubKey ssh.PublicKey
if cert != nil {
err = agent.Add(AddedKey{
PrivateKey: key,
Certificate: cert,
Comment: "comment",
LifetimeSecs: lifetimeSecs,
})
pubKey = cert
} else {
err = agent.Add(AddedKey{PrivateKey: key, Comment: "comment", LifetimeSecs: lifetimeSecs})
pubKey = signer.PublicKey()
}
if err != nil {
t.Fatalf("insert(%T): %v", key, err)
}
// Did the key get inserted successfully?
if keys, err := agent.List(); err != nil {
t.Fatalf("List: %v", err)
} else if len(keys) != 1 {
t.Fatalf("got %v, want 1 key", keys)
} else if keys[0].Comment != "comment" {
t.Fatalf("key comment: got %v, want %v", keys[0].Comment, "comment")
} else if !bytes.Equal(keys[0].Blob, pubKey.Marshal()) {
t.Fatalf("key mismatch")
}
// Can the agent make a valid signature?
data := []byte("hello")
sig, err := agent.Sign(pubKey, data)
if err != nil {
t.Fatalf("Sign(%s): %v", pubKey.Type(), err)
}
if err := pubKey.Verify(data, sig); err != nil {
t.Fatalf("Verify(%s): %v", pubKey.Type(), err)
}
// If the key has a lifetime, is it removed when it should be?
if lifetimeSecs > 0 {
time.Sleep(time.Second*time.Duration(lifetimeSecs) + 100*time.Millisecond)
keys, err := agent.List()
if err != nil {
t.Fatalf("List: %v", err)
}
if len(keys) > 0 {
t.Fatalf("key not expired")
}
}
}
func TestAgent(t *testing.T) {
for _, keyType := range []string{"rsa", "dsa", "ecdsa", "ed25519"} {
testOpenSSHAgent(t, testPrivateKeys[keyType], nil, 0)
testKeyringAgent(t, testPrivateKeys[keyType], nil, 0)
}
}
func TestCert(t *testing.T) {
cert := &ssh.Certificate{
Key: testPublicKeys["rsa"],
ValidBefore: ssh.CertTimeInfinity,
CertType: ssh.UserCert,
}
cert.SignCert(rand.Reader, testSigners["ecdsa"])
testOpenSSHAgent(t, testPrivateKeys["rsa"], cert, 0)
testKeyringAgent(t, testPrivateKeys["rsa"], cert, 0)
}
// netPipe is analogous to net.Pipe, but it uses a real net.Conn, and
// therefore is buffered (net.Pipe deadlocks if both sides start with
// a write.)
func netPipe() (net.Conn, net.Conn, error) {
listener, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
listener, err = net.Listen("tcp", "[::1]:0")
if err != nil {
return nil, nil, err
}
}
defer listener.Close()
c1, err := net.Dial("tcp", listener.Addr().String())
if err != nil {
return nil, nil, err
}
c2, err := listener.Accept()
if err != nil {
c1.Close()
return nil, nil, err
}
return c1, c2, nil
}
func TestAuth(t *testing.T) {
agent, _, cleanup := startOpenSSHAgent(t)
defer cleanup()
a, b, err := netPipe()
if err != nil {
t.Fatalf("netPipe: %v", err)
}
defer a.Close()
defer b.Close()
if err := agent.Add(AddedKey{PrivateKey: testPrivateKeys["rsa"], Comment: "comment"}); err != nil {
t.Errorf("Add: %v", err)
}
serverConf := ssh.ServerConfig{}
serverConf.AddHostKey(testSigners["rsa"])
serverConf.PublicKeyCallback = func(c ssh.ConnMetadata, key ssh.PublicKey) (*ssh.Permissions, error) {
if bytes.Equal(key.Marshal(), testPublicKeys["rsa"].Marshal()) {
return nil, nil
}
return nil, errors.New("pubkey rejected")
}
go func() {
conn, _, _, err := ssh.NewServerConn(a, &serverConf)
if err != nil {
t.Fatalf("Server: %v", err)
}
conn.Close()
}()
conf := ssh.ClientConfig{
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
}
conf.Auth = append(conf.Auth, ssh.PublicKeysCallback(agent.Signers))
conn, _, _, err := ssh.NewClientConn(b, "", &conf)
if err != nil {
t.Fatalf("NewClientConn: %v", err)
}
conn.Close()
}
func TestLockOpenSSHAgent(t *testing.T) {
agent, _, cleanup := startOpenSSHAgent(t)
defer cleanup()
testLockAgent(agent, t)
}
func TestLockKeyringAgent(t *testing.T) {
agent, cleanup := startKeyringAgent(t)
defer cleanup()
testLockAgent(agent, t)
}
func testLockAgent(agent Agent, t *testing.T) {
if err := agent.Add(AddedKey{PrivateKey: testPrivateKeys["rsa"], Comment: "comment 1"}); err != nil {
t.Errorf("Add: %v", err)
}
if err := agent.Add(AddedKey{PrivateKey: testPrivateKeys["dsa"], Comment: "comment dsa"}); err != nil {
t.Errorf("Add: %v", err)
}
if keys, err := agent.List(); err != nil {
t.Errorf("List: %v", err)
} else if len(keys) != 2 {
t.Errorf("Want 2 keys, got %v", keys)
}
passphrase := []byte("secret")
if err := agent.Lock(passphrase); err != nil {
t.Errorf("Lock: %v", err)
}
if keys, err := agent.List(); err != nil {
t.Errorf("List: %v", err)
} else if len(keys) != 0 {
t.Errorf("Want 0 keys, got %v", keys)
}
signer, _ := ssh.NewSignerFromKey(testPrivateKeys["rsa"])
if _, err := agent.Sign(signer.PublicKey(), []byte("hello")); err == nil {
t.Fatalf("Sign did not fail")
}
if err := agent.Remove(signer.PublicKey()); err == nil {
t.Fatalf("Remove did not fail")
}
if err := agent.RemoveAll(); err == nil {
t.Fatalf("RemoveAll did not fail")
}
if err := agent.Unlock(nil); err == nil {
t.Errorf("Unlock with wrong passphrase succeeded")
}
if err := agent.Unlock(passphrase); err != nil {
t.Errorf("Unlock: %v", err)
}
if err := agent.Remove(signer.PublicKey()); err != nil {
t.Fatalf("Remove: %v", err)
}
if keys, err := agent.List(); err != nil {
t.Errorf("List: %v", err)
} else if len(keys) != 1 {
t.Errorf("Want 1 keys, got %v", keys)
}
}
func testOpenSSHAgentLifetime(t *testing.T) {
agent, _, cleanup := startOpenSSHAgent(t)
defer cleanup()
testAgentLifetime(t, agent)
}
func testKeyringAgentLifetime(t *testing.T) {
agent, cleanup := startKeyringAgent(t)
defer cleanup()
testAgentLifetime(t, agent)
}
func testAgentLifetime(t *testing.T, agent Agent) {
for _, keyType := range []string{"rsa", "dsa", "ecdsa"} {
// Add private keys to the agent.
err := agent.Add(AddedKey{
PrivateKey: testPrivateKeys[keyType],
Comment: "comment",
LifetimeSecs: 1,
})
if err != nil {
t.Fatalf("add: %v", err)
}
// Add certs to the agent.
cert := &ssh.Certificate{
Key: testPublicKeys[keyType],
ValidBefore: ssh.CertTimeInfinity,
CertType: ssh.UserCert,
}
cert.SignCert(rand.Reader, testSigners[keyType])
err = agent.Add(AddedKey{
PrivateKey: testPrivateKeys[keyType],
Certificate: cert,
Comment: "comment",
LifetimeSecs: 1,
})
if err != nil {
t.Fatalf("add: %v", err)
}
}
time.Sleep(1100 * time.Millisecond)
if keys, err := agent.List(); err != nil {
t.Errorf("List: %v", err)
} else if len(keys) != 0 {
t.Errorf("Want 0 keys, got %v", len(keys))
}
}

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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package agent_test
import (
"log"
"net"
"os"
"golang.org/x/crypto/ssh"
"golang.org/x/crypto/ssh/agent"
)
func ExampleClientAgent() {
// ssh-agent has a UNIX socket under $SSH_AUTH_SOCK
socket := os.Getenv("SSH_AUTH_SOCK")
conn, err := net.Dial("unix", socket)
if err != nil {
log.Fatalf("net.Dial: %v", err)
}
agentClient := agent.NewClient(conn)
config := &ssh.ClientConfig{
User: "username",
Auth: []ssh.AuthMethod{
// Use a callback rather than PublicKeys
// so we only consult the agent once the remote server
// wants it.
ssh.PublicKeysCallback(agentClient.Signers),
},
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
}
sshc, err := ssh.Dial("tcp", "localhost:22", config)
if err != nil {
log.Fatalf("Dial: %v", err)
}
// .. use sshc
sshc.Close()
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package agent
import (
"errors"
"io"
"net"
"sync"
"golang.org/x/crypto/ssh"
)
// RequestAgentForwarding sets up agent forwarding for the session.
// ForwardToAgent or ForwardToRemote should be called to route
// the authentication requests.
func RequestAgentForwarding(session *ssh.Session) error {
ok, err := session.SendRequest("auth-agent-req@openssh.com", true, nil)
if err != nil {
return err
}
if !ok {
return errors.New("forwarding request denied")
}
return nil
}
// ForwardToAgent routes authentication requests to the given keyring.
func ForwardToAgent(client *ssh.Client, keyring Agent) error {
channels := client.HandleChannelOpen(channelType)
if channels == nil {
return errors.New("agent: already have handler for " + channelType)
}
go func() {
for ch := range channels {
channel, reqs, err := ch.Accept()
if err != nil {
continue
}
go ssh.DiscardRequests(reqs)
go func() {
ServeAgent(keyring, channel)
channel.Close()
}()
}
}()
return nil
}
const channelType = "auth-agent@openssh.com"
// ForwardToRemote routes authentication requests to the ssh-agent
// process serving on the given unix socket.
func ForwardToRemote(client *ssh.Client, addr string) error {
channels := client.HandleChannelOpen(channelType)
if channels == nil {
return errors.New("agent: already have handler for " + channelType)
}
conn, err := net.Dial("unix", addr)
if err != nil {
return err
}
conn.Close()
go func() {
for ch := range channels {
channel, reqs, err := ch.Accept()
if err != nil {
continue
}
go ssh.DiscardRequests(reqs)
go forwardUnixSocket(channel, addr)
}
}()
return nil
}
func forwardUnixSocket(channel ssh.Channel, addr string) {
conn, err := net.Dial("unix", addr)
if err != nil {
return
}
var wg sync.WaitGroup
wg.Add(2)
go func() {
io.Copy(conn, channel)
conn.(*net.UnixConn).CloseWrite()
wg.Done()
}()
go func() {
io.Copy(channel, conn)
channel.CloseWrite()
wg.Done()
}()
wg.Wait()
conn.Close()
channel.Close()
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package agent
import (
"bytes"
"crypto/rand"
"crypto/subtle"
"errors"
"fmt"
"sync"
"time"
"golang.org/x/crypto/ssh"
)
type privKey struct {
signer ssh.Signer
comment string
expire *time.Time
}
type keyring struct {
mu sync.Mutex
keys []privKey
locked bool
passphrase []byte
}
var errLocked = errors.New("agent: locked")
// NewKeyring returns an Agent that holds keys in memory. It is safe
// for concurrent use by multiple goroutines.
func NewKeyring() Agent {
return &keyring{}
}
// RemoveAll removes all identities.
func (r *keyring) RemoveAll() error {
r.mu.Lock()
defer r.mu.Unlock()
if r.locked {
return errLocked
}
r.keys = nil
return nil
}
// removeLocked does the actual key removal. The caller must already be holding the
// keyring mutex.
func (r *keyring) removeLocked(want []byte) error {
found := false
for i := 0; i < len(r.keys); {
if bytes.Equal(r.keys[i].signer.PublicKey().Marshal(), want) {
found = true
r.keys[i] = r.keys[len(r.keys)-1]
r.keys = r.keys[:len(r.keys)-1]
continue
} else {
i++
}
}
if !found {
return errors.New("agent: key not found")
}
return nil
}
// Remove removes all identities with the given public key.
func (r *keyring) Remove(key ssh.PublicKey) error {
r.mu.Lock()
defer r.mu.Unlock()
if r.locked {
return errLocked
}
return r.removeLocked(key.Marshal())
}
// Lock locks the agent. Sign and Remove will fail, and List will return an empty list.
func (r *keyring) Lock(passphrase []byte) error {
r.mu.Lock()
defer r.mu.Unlock()
if r.locked {
return errLocked
}
r.locked = true
r.passphrase = passphrase
return nil
}
// Unlock undoes the effect of Lock
func (r *keyring) Unlock(passphrase []byte) error {
r.mu.Lock()
defer r.mu.Unlock()
if !r.locked {
return errors.New("agent: not locked")
}
if len(passphrase) != len(r.passphrase) || 1 != subtle.ConstantTimeCompare(passphrase, r.passphrase) {
return fmt.Errorf("agent: incorrect passphrase")
}
r.locked = false
r.passphrase = nil
return nil
}
// expireKeysLocked removes expired keys from the keyring. If a key was added
// with a lifetimesecs contraint and seconds >= lifetimesecs seconds have
// ellapsed, it is removed. The caller *must* be holding the keyring mutex.
func (r *keyring) expireKeysLocked() {
for _, k := range r.keys {
if k.expire != nil && time.Now().After(*k.expire) {
r.removeLocked(k.signer.PublicKey().Marshal())
}
}
}
// List returns the identities known to the agent.
func (r *keyring) List() ([]*Key, error) {
r.mu.Lock()
defer r.mu.Unlock()
if r.locked {
// section 2.7: locked agents return empty.
return nil, nil
}
r.expireKeysLocked()
var ids []*Key
for _, k := range r.keys {
pub := k.signer.PublicKey()
ids = append(ids, &Key{
Format: pub.Type(),
Blob: pub.Marshal(),
Comment: k.comment})
}
return ids, nil
}
// Insert adds a private key to the keyring. If a certificate
// is given, that certificate is added as public key. Note that
// any constraints given are ignored.
func (r *keyring) Add(key AddedKey) error {
r.mu.Lock()
defer r.mu.Unlock()
if r.locked {
return errLocked
}
signer, err := ssh.NewSignerFromKey(key.PrivateKey)
if err != nil {
return err
}
if cert := key.Certificate; cert != nil {
signer, err = ssh.NewCertSigner(cert, signer)
if err != nil {
return err
}
}
p := privKey{
signer: signer,
comment: key.Comment,
}
if key.LifetimeSecs > 0 {
t := time.Now().Add(time.Duration(key.LifetimeSecs) * time.Second)
p.expire = &t
}
r.keys = append(r.keys, p)
return nil
}
// Sign returns a signature for the data.
func (r *keyring) Sign(key ssh.PublicKey, data []byte) (*ssh.Signature, error) {
r.mu.Lock()
defer r.mu.Unlock()
if r.locked {
return nil, errLocked
}
r.expireKeysLocked()
wanted := key.Marshal()
for _, k := range r.keys {
if bytes.Equal(k.signer.PublicKey().Marshal(), wanted) {
return k.signer.Sign(rand.Reader, data)
}
}
return nil, errors.New("not found")
}
// Signers returns signers for all the known keys.
func (r *keyring) Signers() ([]ssh.Signer, error) {
r.mu.Lock()
defer r.mu.Unlock()
if r.locked {
return nil, errLocked
}
r.expireKeysLocked()
s := make([]ssh.Signer, 0, len(r.keys))
for _, k := range r.keys {
s = append(s, k.signer)
}
return s, nil
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package agent
import "testing"
func addTestKey(t *testing.T, a Agent, keyName string) {
err := a.Add(AddedKey{
PrivateKey: testPrivateKeys[keyName],
Comment: keyName,
})
if err != nil {
t.Fatalf("failed to add key %q: %v", keyName, err)
}
}
func removeTestKey(t *testing.T, a Agent, keyName string) {
err := a.Remove(testPublicKeys[keyName])
if err != nil {
t.Fatalf("failed to remove key %q: %v", keyName, err)
}
}
func validateListedKeys(t *testing.T, a Agent, expectedKeys []string) {
listedKeys, err := a.List()
if err != nil {
t.Fatalf("failed to list keys: %v", err)
return
}
actualKeys := make(map[string]bool)
for _, key := range listedKeys {
actualKeys[key.Comment] = true
}
matchedKeys := make(map[string]bool)
for _, expectedKey := range expectedKeys {
if !actualKeys[expectedKey] {
t.Fatalf("expected key %q, but was not found", expectedKey)
} else {
matchedKeys[expectedKey] = true
}
}
for actualKey := range actualKeys {
if !matchedKeys[actualKey] {
t.Fatalf("key %q was found, but was not expected", actualKey)
}
}
}
func TestKeyringAddingAndRemoving(t *testing.T) {
keyNames := []string{"dsa", "ecdsa", "rsa", "user"}
// add all test private keys
k := NewKeyring()
for _, keyName := range keyNames {
addTestKey(t, k, keyName)
}
validateListedKeys(t, k, keyNames)
// remove a key in the middle
keyToRemove := keyNames[1]
keyNames = append(keyNames[:1], keyNames[2:]...)
removeTestKey(t, k, keyToRemove)
validateListedKeys(t, k, keyNames)
// remove all keys
err := k.RemoveAll()
if err != nil {
t.Fatalf("failed to remove all keys: %v", err)
}
validateListedKeys(t, k, []string{})
}

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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package agent
import (
"crypto/dsa"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rsa"
"encoding/binary"
"errors"
"fmt"
"io"
"log"
"math/big"
"golang.org/x/crypto/ed25519"
"golang.org/x/crypto/ssh"
)
// Server wraps an Agent and uses it to implement the agent side of
// the SSH-agent, wire protocol.
type server struct {
agent Agent
}
func (s *server) processRequestBytes(reqData []byte) []byte {
rep, err := s.processRequest(reqData)
if err != nil {
if err != errLocked {
// TODO(hanwen): provide better logging interface?
log.Printf("agent %d: %v", reqData[0], err)
}
return []byte{agentFailure}
}
if err == nil && rep == nil {
return []byte{agentSuccess}
}
return ssh.Marshal(rep)
}
func marshalKey(k *Key) []byte {
var record struct {
Blob []byte
Comment string
}
record.Blob = k.Marshal()
record.Comment = k.Comment
return ssh.Marshal(&record)
}
// See [PROTOCOL.agent], section 2.5.1.
const agentV1IdentitiesAnswer = 2
type agentV1IdentityMsg struct {
Numkeys uint32 `sshtype:"2"`
}
type agentRemoveIdentityMsg struct {
KeyBlob []byte `sshtype:"18"`
}
type agentLockMsg struct {
Passphrase []byte `sshtype:"22"`
}
type agentUnlockMsg struct {
Passphrase []byte `sshtype:"23"`
}
func (s *server) processRequest(data []byte) (interface{}, error) {
switch data[0] {
case agentRequestV1Identities:
return &agentV1IdentityMsg{0}, nil
case agentRemoveAllV1Identities:
return nil, nil
case agentRemoveIdentity:
var req agentRemoveIdentityMsg
if err := ssh.Unmarshal(data, &req); err != nil {
return nil, err
}
var wk wireKey
if err := ssh.Unmarshal(req.KeyBlob, &wk); err != nil {
return nil, err
}
return nil, s.agent.Remove(&Key{Format: wk.Format, Blob: req.KeyBlob})
case agentRemoveAllIdentities:
return nil, s.agent.RemoveAll()
case agentLock:
var req agentLockMsg
if err := ssh.Unmarshal(data, &req); err != nil {
return nil, err
}
return nil, s.agent.Lock(req.Passphrase)
case agentUnlock:
var req agentUnlockMsg
if err := ssh.Unmarshal(data, &req); err != nil {
return nil, err
}
return nil, s.agent.Unlock(req.Passphrase)
case agentSignRequest:
var req signRequestAgentMsg
if err := ssh.Unmarshal(data, &req); err != nil {
return nil, err
}
var wk wireKey
if err := ssh.Unmarshal(req.KeyBlob, &wk); err != nil {
return nil, err
}
k := &Key{
Format: wk.Format,
Blob: req.KeyBlob,
}
sig, err := s.agent.Sign(k, req.Data) // TODO(hanwen): flags.
if err != nil {
return nil, err
}
return &signResponseAgentMsg{SigBlob: ssh.Marshal(sig)}, nil
case agentRequestIdentities:
keys, err := s.agent.List()
if err != nil {
return nil, err
}
rep := identitiesAnswerAgentMsg{
NumKeys: uint32(len(keys)),
}
for _, k := range keys {
rep.Keys = append(rep.Keys, marshalKey(k)...)
}
return rep, nil
case agentAddIdConstrained, agentAddIdentity:
return nil, s.insertIdentity(data)
}
return nil, fmt.Errorf("unknown opcode %d", data[0])
}
func parseConstraints(constraints []byte) (lifetimeSecs uint32, confirmBeforeUse bool, extensions []ConstraintExtension, err error) {
for len(constraints) != 0 {
switch constraints[0] {
case agentConstrainLifetime:
lifetimeSecs = binary.BigEndian.Uint32(constraints[1:5])
constraints = constraints[5:]
case agentConstrainConfirm:
confirmBeforeUse = true
constraints = constraints[1:]
case agentConstrainExtension:
var msg constrainExtensionAgentMsg
if err = ssh.Unmarshal(constraints, &msg); err != nil {
return 0, false, nil, err
}
extensions = append(extensions, ConstraintExtension{
ExtensionName: msg.ExtensionName,
ExtensionDetails: msg.ExtensionDetails,
})
constraints = msg.Rest
default:
return 0, false, nil, fmt.Errorf("unknown constraint type: %d", constraints[0])
}
}
return
}
func setConstraints(key *AddedKey, constraintBytes []byte) error {
lifetimeSecs, confirmBeforeUse, constraintExtensions, err := parseConstraints(constraintBytes)
if err != nil {
return err
}
key.LifetimeSecs = lifetimeSecs
key.ConfirmBeforeUse = confirmBeforeUse
key.ConstraintExtensions = constraintExtensions
return nil
}
func parseRSAKey(req []byte) (*AddedKey, error) {
var k rsaKeyMsg
if err := ssh.Unmarshal(req, &k); err != nil {
return nil, err
}
if k.E.BitLen() > 30 {
return nil, errors.New("agent: RSA public exponent too large")
}
priv := &rsa.PrivateKey{
PublicKey: rsa.PublicKey{
E: int(k.E.Int64()),
N: k.N,
},
D: k.D,
Primes: []*big.Int{k.P, k.Q},
}
priv.Precompute()
addedKey := &AddedKey{PrivateKey: priv, Comment: k.Comments}
if err := setConstraints(addedKey, k.Constraints); err != nil {
return nil, err
}
return addedKey, nil
}
func parseEd25519Key(req []byte) (*AddedKey, error) {
var k ed25519KeyMsg
if err := ssh.Unmarshal(req, &k); err != nil {
return nil, err
}
priv := ed25519.PrivateKey(k.Priv)
addedKey := &AddedKey{PrivateKey: &priv, Comment: k.Comments}
if err := setConstraints(addedKey, k.Constraints); err != nil {
return nil, err
}
return addedKey, nil
}
func parseDSAKey(req []byte) (*AddedKey, error) {
var k dsaKeyMsg
if err := ssh.Unmarshal(req, &k); err != nil {
return nil, err
}
priv := &dsa.PrivateKey{
PublicKey: dsa.PublicKey{
Parameters: dsa.Parameters{
P: k.P,
Q: k.Q,
G: k.G,
},
Y: k.Y,
},
X: k.X,
}
addedKey := &AddedKey{PrivateKey: priv, Comment: k.Comments}
if err := setConstraints(addedKey, k.Constraints); err != nil {
return nil, err
}
return addedKey, nil
}
func unmarshalECDSA(curveName string, keyBytes []byte, privScalar *big.Int) (priv *ecdsa.PrivateKey, err error) {
priv = &ecdsa.PrivateKey{
D: privScalar,
}
switch curveName {
case "nistp256":
priv.Curve = elliptic.P256()
case "nistp384":
priv.Curve = elliptic.P384()
case "nistp521":
priv.Curve = elliptic.P521()
default:
return nil, fmt.Errorf("agent: unknown curve %q", curveName)
}
priv.X, priv.Y = elliptic.Unmarshal(priv.Curve, keyBytes)
if priv.X == nil || priv.Y == nil {
return nil, errors.New("agent: point not on curve")
}
return priv, nil
}
func parseEd25519Cert(req []byte) (*AddedKey, error) {
var k ed25519CertMsg
if err := ssh.Unmarshal(req, &k); err != nil {
return nil, err
}
pubKey, err := ssh.ParsePublicKey(k.CertBytes)
if err != nil {
return nil, err
}
priv := ed25519.PrivateKey(k.Priv)
cert, ok := pubKey.(*ssh.Certificate)
if !ok {
return nil, errors.New("agent: bad ED25519 certificate")
}
addedKey := &AddedKey{PrivateKey: &priv, Certificate: cert, Comment: k.Comments}
if err := setConstraints(addedKey, k.Constraints); err != nil {
return nil, err
}
return addedKey, nil
}
func parseECDSAKey(req []byte) (*AddedKey, error) {
var k ecdsaKeyMsg
if err := ssh.Unmarshal(req, &k); err != nil {
return nil, err
}
priv, err := unmarshalECDSA(k.Curve, k.KeyBytes, k.D)
if err != nil {
return nil, err
}
addedKey := &AddedKey{PrivateKey: priv, Comment: k.Comments}
if err := setConstraints(addedKey, k.Constraints); err != nil {
return nil, err
}
return addedKey, nil
}
func parseRSACert(req []byte) (*AddedKey, error) {
var k rsaCertMsg
if err := ssh.Unmarshal(req, &k); err != nil {
return nil, err
}
pubKey, err := ssh.ParsePublicKey(k.CertBytes)
if err != nil {
return nil, err
}
cert, ok := pubKey.(*ssh.Certificate)
if !ok {
return nil, errors.New("agent: bad RSA certificate")
}
// An RSA publickey as marshaled by rsaPublicKey.Marshal() in keys.go
var rsaPub struct {
Name string
E *big.Int
N *big.Int
}
if err := ssh.Unmarshal(cert.Key.Marshal(), &rsaPub); err != nil {
return nil, fmt.Errorf("agent: Unmarshal failed to parse public key: %v", err)
}
if rsaPub.E.BitLen() > 30 {
return nil, errors.New("agent: RSA public exponent too large")
}
priv := rsa.PrivateKey{
PublicKey: rsa.PublicKey{
E: int(rsaPub.E.Int64()),
N: rsaPub.N,
},
D: k.D,
Primes: []*big.Int{k.Q, k.P},
}
priv.Precompute()
addedKey := &AddedKey{PrivateKey: &priv, Certificate: cert, Comment: k.Comments}
if err := setConstraints(addedKey, k.Constraints); err != nil {
return nil, err
}
return addedKey, nil
}
func parseDSACert(req []byte) (*AddedKey, error) {
var k dsaCertMsg
if err := ssh.Unmarshal(req, &k); err != nil {
return nil, err
}
pubKey, err := ssh.ParsePublicKey(k.CertBytes)
if err != nil {
return nil, err
}
cert, ok := pubKey.(*ssh.Certificate)
if !ok {
return nil, errors.New("agent: bad DSA certificate")
}
// A DSA publickey as marshaled by dsaPublicKey.Marshal() in keys.go
var w struct {
Name string
P, Q, G, Y *big.Int
}
if err := ssh.Unmarshal(cert.Key.Marshal(), &w); err != nil {
return nil, fmt.Errorf("agent: Unmarshal failed to parse public key: %v", err)
}
priv := &dsa.PrivateKey{
PublicKey: dsa.PublicKey{
Parameters: dsa.Parameters{
P: w.P,
Q: w.Q,
G: w.G,
},
Y: w.Y,
},
X: k.X,
}
addedKey := &AddedKey{PrivateKey: priv, Certificate: cert, Comment: k.Comments}
if err := setConstraints(addedKey, k.Constraints); err != nil {
return nil, err
}
return addedKey, nil
}
func parseECDSACert(req []byte) (*AddedKey, error) {
var k ecdsaCertMsg
if err := ssh.Unmarshal(req, &k); err != nil {
return nil, err
}
pubKey, err := ssh.ParsePublicKey(k.CertBytes)
if err != nil {
return nil, err
}
cert, ok := pubKey.(*ssh.Certificate)
if !ok {
return nil, errors.New("agent: bad ECDSA certificate")
}
// An ECDSA publickey as marshaled by ecdsaPublicKey.Marshal() in keys.go
var ecdsaPub struct {
Name string
ID string
Key []byte
}
if err := ssh.Unmarshal(cert.Key.Marshal(), &ecdsaPub); err != nil {
return nil, err
}
priv, err := unmarshalECDSA(ecdsaPub.ID, ecdsaPub.Key, k.D)
if err != nil {
return nil, err
}
addedKey := &AddedKey{PrivateKey: priv, Certificate: cert, Comment: k.Comments}
if err := setConstraints(addedKey, k.Constraints); err != nil {
return nil, err
}
return addedKey, nil
}
func (s *server) insertIdentity(req []byte) error {
var record struct {
Type string `sshtype:"17|25"`
Rest []byte `ssh:"rest"`
}
if err := ssh.Unmarshal(req, &record); err != nil {
return err
}
var addedKey *AddedKey
var err error
switch record.Type {
case ssh.KeyAlgoRSA:
addedKey, err = parseRSAKey(req)
case ssh.KeyAlgoDSA:
addedKey, err = parseDSAKey(req)
case ssh.KeyAlgoECDSA256, ssh.KeyAlgoECDSA384, ssh.KeyAlgoECDSA521:
addedKey, err = parseECDSAKey(req)
case ssh.KeyAlgoED25519:
addedKey, err = parseEd25519Key(req)
case ssh.CertAlgoRSAv01:
addedKey, err = parseRSACert(req)
case ssh.CertAlgoDSAv01:
addedKey, err = parseDSACert(req)
case ssh.CertAlgoECDSA256v01, ssh.CertAlgoECDSA384v01, ssh.CertAlgoECDSA521v01:
addedKey, err = parseECDSACert(req)
case ssh.CertAlgoED25519v01:
addedKey, err = parseEd25519Cert(req)
default:
return fmt.Errorf("agent: not implemented: %q", record.Type)
}
if err != nil {
return err
}
return s.agent.Add(*addedKey)
}
// ServeAgent serves the agent protocol on the given connection. It
// returns when an I/O error occurs.
func ServeAgent(agent Agent, c io.ReadWriter) error {
s := &server{agent}
var length [4]byte
for {
if _, err := io.ReadFull(c, length[:]); err != nil {
return err
}
l := binary.BigEndian.Uint32(length[:])
if l > maxAgentResponseBytes {
// We also cap requests.
return fmt.Errorf("agent: request too large: %d", l)
}
req := make([]byte, l)
if _, err := io.ReadFull(c, req); err != nil {
return err
}
repData := s.processRequestBytes(req)
if len(repData) > maxAgentResponseBytes {
return fmt.Errorf("agent: reply too large: %d bytes", len(repData))
}
binary.BigEndian.PutUint32(length[:], uint32(len(repData)))
if _, err := c.Write(length[:]); err != nil {
return err
}
if _, err := c.Write(repData); err != nil {
return err
}
}
}

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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package agent
import (
"crypto"
"crypto/rand"
"fmt"
pseudorand "math/rand"
"reflect"
"strings"
"testing"
"golang.org/x/crypto/ssh"
)
func TestServer(t *testing.T) {
c1, c2, err := netPipe()
if err != nil {
t.Fatalf("netPipe: %v", err)
}
defer c1.Close()
defer c2.Close()
client := NewClient(c1)
go ServeAgent(NewKeyring(), c2)
testAgentInterface(t, client, testPrivateKeys["rsa"], nil, 0)
}
func TestLockServer(t *testing.T) {
testLockAgent(NewKeyring(), t)
}
func TestSetupForwardAgent(t *testing.T) {
a, b, err := netPipe()
if err != nil {
t.Fatalf("netPipe: %v", err)
}
defer a.Close()
defer b.Close()
_, socket, cleanup := startOpenSSHAgent(t)
defer cleanup()
serverConf := ssh.ServerConfig{
NoClientAuth: true,
}
serverConf.AddHostKey(testSigners["rsa"])
incoming := make(chan *ssh.ServerConn, 1)
go func() {
conn, _, _, err := ssh.NewServerConn(a, &serverConf)
if err != nil {
t.Fatalf("Server: %v", err)
}
incoming <- conn
}()
conf := ssh.ClientConfig{
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
}
conn, chans, reqs, err := ssh.NewClientConn(b, "", &conf)
if err != nil {
t.Fatalf("NewClientConn: %v", err)
}
client := ssh.NewClient(conn, chans, reqs)
if err := ForwardToRemote(client, socket); err != nil {
t.Fatalf("SetupForwardAgent: %v", err)
}
server := <-incoming
ch, reqs, err := server.OpenChannel(channelType, nil)
if err != nil {
t.Fatalf("OpenChannel(%q): %v", channelType, err)
}
go ssh.DiscardRequests(reqs)
agentClient := NewClient(ch)
testAgentInterface(t, agentClient, testPrivateKeys["rsa"], nil, 0)
conn.Close()
}
func TestV1ProtocolMessages(t *testing.T) {
c1, c2, err := netPipe()
if err != nil {
t.Fatalf("netPipe: %v", err)
}
defer c1.Close()
defer c2.Close()
c := NewClient(c1)
go ServeAgent(NewKeyring(), c2)
testV1ProtocolMessages(t, c.(*client))
}
func testV1ProtocolMessages(t *testing.T, c *client) {
reply, err := c.call([]byte{agentRequestV1Identities})
if err != nil {
t.Fatalf("v1 request all failed: %v", err)
}
if msg, ok := reply.(*agentV1IdentityMsg); !ok || msg.Numkeys != 0 {
t.Fatalf("invalid request all response: %#v", reply)
}
reply, err = c.call([]byte{agentRemoveAllV1Identities})
if err != nil {
t.Fatalf("v1 remove all failed: %v", err)
}
if _, ok := reply.(*successAgentMsg); !ok {
t.Fatalf("invalid remove all response: %#v", reply)
}
}
func verifyKey(sshAgent Agent) error {
keys, err := sshAgent.List()
if err != nil {
return fmt.Errorf("listing keys: %v", err)
}
if len(keys) != 1 {
return fmt.Errorf("bad number of keys found. expected 1, got %d", len(keys))
}
buf := make([]byte, 128)
if _, err := rand.Read(buf); err != nil {
return fmt.Errorf("rand: %v", err)
}
sig, err := sshAgent.Sign(keys[0], buf)
if err != nil {
return fmt.Errorf("sign: %v", err)
}
if err := keys[0].Verify(buf, sig); err != nil {
return fmt.Errorf("verify: %v", err)
}
return nil
}
func addKeyToAgent(key crypto.PrivateKey) error {
sshAgent := NewKeyring()
if err := sshAgent.Add(AddedKey{PrivateKey: key}); err != nil {
return fmt.Errorf("add: %v", err)
}
return verifyKey(sshAgent)
}
func TestKeyTypes(t *testing.T) {
for k, v := range testPrivateKeys {
if err := addKeyToAgent(v); err != nil {
t.Errorf("error adding key type %s, %v", k, err)
}
if err := addCertToAgentSock(v, nil); err != nil {
t.Errorf("error adding key type %s, %v", k, err)
}
}
}
func addCertToAgentSock(key crypto.PrivateKey, cert *ssh.Certificate) error {
a, b, err := netPipe()
if err != nil {
return err
}
agentServer := NewKeyring()
go ServeAgent(agentServer, a)
agentClient := NewClient(b)
if err := agentClient.Add(AddedKey{PrivateKey: key, Certificate: cert}); err != nil {
return fmt.Errorf("add: %v", err)
}
return verifyKey(agentClient)
}
func addCertToAgent(key crypto.PrivateKey, cert *ssh.Certificate) error {
sshAgent := NewKeyring()
if err := sshAgent.Add(AddedKey{PrivateKey: key, Certificate: cert}); err != nil {
return fmt.Errorf("add: %v", err)
}
return verifyKey(sshAgent)
}
func TestCertTypes(t *testing.T) {
for keyType, key := range testPublicKeys {
cert := &ssh.Certificate{
ValidPrincipals: []string{"gopher1"},
ValidAfter: 0,
ValidBefore: ssh.CertTimeInfinity,
Key: key,
Serial: 1,
CertType: ssh.UserCert,
SignatureKey: testPublicKeys["rsa"],
Permissions: ssh.Permissions{
CriticalOptions: map[string]string{},
Extensions: map[string]string{},
},
}
if err := cert.SignCert(rand.Reader, testSigners["rsa"]); err != nil {
t.Fatalf("signcert: %v", err)
}
if err := addCertToAgent(testPrivateKeys[keyType], cert); err != nil {
t.Fatalf("%v", err)
}
if err := addCertToAgentSock(testPrivateKeys[keyType], cert); err != nil {
t.Fatalf("%v", err)
}
}
}
func TestParseConstraints(t *testing.T) {
// Test LifetimeSecs
var msg = constrainLifetimeAgentMsg{pseudorand.Uint32()}
lifetimeSecs, _, _, err := parseConstraints(ssh.Marshal(msg))
if err != nil {
t.Fatalf("parseConstraints: %v", err)
}
if lifetimeSecs != msg.LifetimeSecs {
t.Errorf("got lifetime %v, want %v", lifetimeSecs, msg.LifetimeSecs)
}
// Test ConfirmBeforeUse
_, confirmBeforeUse, _, err := parseConstraints([]byte{agentConstrainConfirm})
if err != nil {
t.Fatalf("%v", err)
}
if !confirmBeforeUse {
t.Error("got comfirmBeforeUse == false")
}
// Test ConstraintExtensions
var data []byte
var expect []ConstraintExtension
for i := 0; i < 10; i++ {
var ext = ConstraintExtension{
ExtensionName: fmt.Sprintf("name%d", i),
ExtensionDetails: []byte(fmt.Sprintf("details: %d", i)),
}
expect = append(expect, ext)
data = append(data, agentConstrainExtension)
data = append(data, ssh.Marshal(ext)...)
}
_, _, extensions, err := parseConstraints(data)
if err != nil {
t.Fatalf("%v", err)
}
if !reflect.DeepEqual(expect, extensions) {
t.Errorf("got extension %v, want %v", extensions, expect)
}
// Test Unknown Constraint
_, _, _, err = parseConstraints([]byte{128})
if err == nil || !strings.Contains(err.Error(), "unknown constraint") {
t.Errorf("unexpected error: %v", err)
}
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// IMPLEMENTATION NOTE: To avoid a package loop, this file is in three places:
// ssh/, ssh/agent, and ssh/test/. It should be kept in sync across all three
// instances.
package agent
import (
"crypto/rand"
"fmt"
"golang.org/x/crypto/ssh"
"golang.org/x/crypto/ssh/testdata"
)
var (
testPrivateKeys map[string]interface{}
testSigners map[string]ssh.Signer
testPublicKeys map[string]ssh.PublicKey
)
func init() {
var err error
n := len(testdata.PEMBytes)
testPrivateKeys = make(map[string]interface{}, n)
testSigners = make(map[string]ssh.Signer, n)
testPublicKeys = make(map[string]ssh.PublicKey, n)
for t, k := range testdata.PEMBytes {
testPrivateKeys[t], err = ssh.ParseRawPrivateKey(k)
if err != nil {
panic(fmt.Sprintf("Unable to parse test key %s: %v", t, err))
}
testSigners[t], err = ssh.NewSignerFromKey(testPrivateKeys[t])
if err != nil {
panic(fmt.Sprintf("Unable to create signer for test key %s: %v", t, err))
}
testPublicKeys[t] = testSigners[t].PublicKey()
}
// Create a cert and sign it for use in tests.
testCert := &ssh.Certificate{
Nonce: []byte{}, // To pass reflect.DeepEqual after marshal & parse, this must be non-nil
ValidPrincipals: []string{"gopher1", "gopher2"}, // increases test coverage
ValidAfter: 0, // unix epoch
ValidBefore: ssh.CertTimeInfinity, // The end of currently representable time.
Reserved: []byte{}, // To pass reflect.DeepEqual after marshal & parse, this must be non-nil
Key: testPublicKeys["ecdsa"],
SignatureKey: testPublicKeys["rsa"],
Permissions: ssh.Permissions{
CriticalOptions: map[string]string{},
Extensions: map[string]string{},
},
}
testCert.SignCert(rand.Reader, testSigners["rsa"])
testPrivateKeys["cert"] = testPrivateKeys["ecdsa"]
testSigners["cert"], err = ssh.NewCertSigner(testCert, testSigners["ecdsa"])
if err != nil {
panic(fmt.Sprintf("Unable to create certificate signer: %v", err))
}
}

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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ssh
import (
"errors"
"io"
"net"
"testing"
)
type server struct {
*ServerConn
chans <-chan NewChannel
}
func newServer(c net.Conn, conf *ServerConfig) (*server, error) {
sconn, chans, reqs, err := NewServerConn(c, conf)
if err != nil {
return nil, err
}
go DiscardRequests(reqs)
return &server{sconn, chans}, nil
}
func (s *server) Accept() (NewChannel, error) {
n, ok := <-s.chans
if !ok {
return nil, io.EOF
}
return n, nil
}
func sshPipe() (Conn, *server, error) {
c1, c2, err := netPipe()
if err != nil {
return nil, nil, err
}
clientConf := ClientConfig{
User: "user",
}
serverConf := ServerConfig{
NoClientAuth: true,
}
serverConf.AddHostKey(testSigners["ecdsa"])
done := make(chan *server, 1)
go func() {
server, err := newServer(c2, &serverConf)
if err != nil {
done <- nil
}
done <- server
}()
client, _, reqs, err := NewClientConn(c1, "", &clientConf)
if err != nil {
return nil, nil, err
}
server := <-done
if server == nil {
return nil, nil, errors.New("server handshake failed.")
}
go DiscardRequests(reqs)
return client, server, nil
}
func BenchmarkEndToEnd(b *testing.B) {
b.StopTimer()
client, server, err := sshPipe()
if err != nil {
b.Fatalf("sshPipe: %v", err)
}
defer client.Close()
defer server.Close()
size := (1 << 20)
input := make([]byte, size)
output := make([]byte, size)
b.SetBytes(int64(size))
done := make(chan int, 1)
go func() {
newCh, err := server.Accept()
if err != nil {
b.Fatalf("Client: %v", err)
}
ch, incoming, err := newCh.Accept()
go DiscardRequests(incoming)
for i := 0; i < b.N; i++ {
if _, err := io.ReadFull(ch, output); err != nil {
b.Fatalf("ReadFull: %v", err)
}
}
ch.Close()
done <- 1
}()
ch, in, err := client.OpenChannel("speed", nil)
if err != nil {
b.Fatalf("OpenChannel: %v", err)
}
go DiscardRequests(in)
b.ResetTimer()
b.StartTimer()
for i := 0; i < b.N; i++ {
if _, err := ch.Write(input); err != nil {
b.Fatalf("WriteFull: %v", err)
}
}
ch.Close()
b.StopTimer()
<-done
}

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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ssh
import (
"io"
"sync"
)
// buffer provides a linked list buffer for data exchange
// between producer and consumer. Theoretically the buffer is
// of unlimited capacity as it does no allocation of its own.
type buffer struct {
// protects concurrent access to head, tail and closed
*sync.Cond
head *element // the buffer that will be read first
tail *element // the buffer that will be read last
closed bool
}
// An element represents a single link in a linked list.
type element struct {
buf []byte
next *element
}
// newBuffer returns an empty buffer that is not closed.
func newBuffer() *buffer {
e := new(element)
b := &buffer{
Cond: newCond(),
head: e,
tail: e,
}
return b
}
// write makes buf available for Read to receive.
// buf must not be modified after the call to write.
func (b *buffer) write(buf []byte) {
b.Cond.L.Lock()
e := &element{buf: buf}
b.tail.next = e
b.tail = e
b.Cond.Signal()
b.Cond.L.Unlock()
}
// eof closes the buffer. Reads from the buffer once all
// the data has been consumed will receive io.EOF.
func (b *buffer) eof() {
b.Cond.L.Lock()
b.closed = true
b.Cond.Signal()
b.Cond.L.Unlock()
}
// Read reads data from the internal buffer in buf. Reads will block
// if no data is available, or until the buffer is closed.
func (b *buffer) Read(buf []byte) (n int, err error) {
b.Cond.L.Lock()
defer b.Cond.L.Unlock()
for len(buf) > 0 {
// if there is data in b.head, copy it
if len(b.head.buf) > 0 {
r := copy(buf, b.head.buf)
buf, b.head.buf = buf[r:], b.head.buf[r:]
n += r
continue
}
// if there is a next buffer, make it the head
if len(b.head.buf) == 0 && b.head != b.tail {
b.head = b.head.next
continue
}
// if at least one byte has been copied, return
if n > 0 {
break
}
// if nothing was read, and there is nothing outstanding
// check to see if the buffer is closed.
if b.closed {
err = io.EOF
break
}
// out of buffers, wait for producer
b.Cond.Wait()
}
return
}

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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ssh
import (
"io"
"testing"
)
var alphabet = []byte("abcdefghijklmnopqrstuvwxyz")
func TestBufferReadwrite(t *testing.T) {
b := newBuffer()
b.write(alphabet[:10])
r, _ := b.Read(make([]byte, 10))
if r != 10 {
t.Fatalf("Expected written == read == 10, written: 10, read %d", r)
}
b = newBuffer()
b.write(alphabet[:5])
r, _ = b.Read(make([]byte, 10))
if r != 5 {
t.Fatalf("Expected written == read == 5, written: 5, read %d", r)
}
b = newBuffer()
b.write(alphabet[:10])
r, _ = b.Read(make([]byte, 5))
if r != 5 {
t.Fatalf("Expected written == 10, read == 5, written: 10, read %d", r)
}
b = newBuffer()
b.write(alphabet[:5])
b.write(alphabet[5:15])
r, _ = b.Read(make([]byte, 10))
r2, _ := b.Read(make([]byte, 10))
if r != 10 || r2 != 5 || 15 != r+r2 {
t.Fatal("Expected written == read == 15")
}
}
func TestBufferClose(t *testing.T) {
b := newBuffer()
b.write(alphabet[:10])
b.eof()
_, err := b.Read(make([]byte, 5))
if err != nil {
t.Fatal("expected read of 5 to not return EOF")
}
b = newBuffer()
b.write(alphabet[:10])
b.eof()
r, err := b.Read(make([]byte, 5))
r2, err2 := b.Read(make([]byte, 10))
if r != 5 || r2 != 5 || err != nil || err2 != nil {
t.Fatal("expected reads of 5 and 5")
}
b = newBuffer()
b.write(alphabet[:10])
b.eof()
r, err = b.Read(make([]byte, 5))
r2, err2 = b.Read(make([]byte, 10))
r3, err3 := b.Read(make([]byte, 10))
if r != 5 || r2 != 5 || r3 != 0 || err != nil || err2 != nil || err3 != io.EOF {
t.Fatal("expected reads of 5 and 5 and 0, with EOF")
}
b = newBuffer()
b.write(make([]byte, 5))
b.write(make([]byte, 10))
b.eof()
r, err = b.Read(make([]byte, 9))
r2, err2 = b.Read(make([]byte, 3))
r3, err3 = b.Read(make([]byte, 3))
r4, err4 := b.Read(make([]byte, 10))
if err != nil || err2 != nil || err3 != nil || err4 != io.EOF {
t.Fatalf("Expected EOF on forth read only, err=%v, err2=%v, err3=%v, err4=%v", err, err2, err3, err4)
}
if r != 9 || r2 != 3 || r3 != 3 || r4 != 0 {
t.Fatal("Expected written == read == 15", r, r2, r3, r4)
}
}

View File

@ -0,0 +1,519 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ssh
import (
"bytes"
"errors"
"fmt"
"io"
"net"
"sort"
"time"
)
// These constants from [PROTOCOL.certkeys] represent the algorithm names
// for certificate types supported by this package.
const (
CertAlgoRSAv01 = "ssh-rsa-cert-v01@openssh.com"
CertAlgoDSAv01 = "ssh-dss-cert-v01@openssh.com"
CertAlgoECDSA256v01 = "ecdsa-sha2-nistp256-cert-v01@openssh.com"
CertAlgoECDSA384v01 = "ecdsa-sha2-nistp384-cert-v01@openssh.com"
CertAlgoECDSA521v01 = "ecdsa-sha2-nistp521-cert-v01@openssh.com"
CertAlgoED25519v01 = "ssh-ed25519-cert-v01@openssh.com"
)
// Certificate types distinguish between host and user
// certificates. The values can be set in the CertType field of
// Certificate.
const (
UserCert = 1
HostCert = 2
)
// Signature represents a cryptographic signature.
type Signature struct {
Format string
Blob []byte
}
// CertTimeInfinity can be used for OpenSSHCertV01.ValidBefore to indicate that
// a certificate does not expire.
const CertTimeInfinity = 1<<64 - 1
// An Certificate represents an OpenSSH certificate as defined in
// [PROTOCOL.certkeys]?rev=1.8.
type Certificate struct {
Nonce []byte
Key PublicKey
Serial uint64
CertType uint32
KeyId string
ValidPrincipals []string
ValidAfter uint64
ValidBefore uint64
Permissions
Reserved []byte
SignatureKey PublicKey
Signature *Signature
}
// genericCertData holds the key-independent part of the certificate data.
// Overall, certificates contain an nonce, public key fields and
// key-independent fields.
type genericCertData struct {
Serial uint64
CertType uint32
KeyId string
ValidPrincipals []byte
ValidAfter uint64
ValidBefore uint64
CriticalOptions []byte
Extensions []byte
Reserved []byte
SignatureKey []byte
Signature []byte
}
func marshalStringList(namelist []string) []byte {
var to []byte
for _, name := range namelist {
s := struct{ N string }{name}
to = append(to, Marshal(&s)...)
}
return to
}
type optionsTuple struct {
Key string
Value []byte
}
type optionsTupleValue struct {
Value string
}
// serialize a map of critical options or extensions
// issue #10569 - per [PROTOCOL.certkeys] and SSH implementation,
// we need two length prefixes for a non-empty string value
func marshalTuples(tups map[string]string) []byte {
keys := make([]string, 0, len(tups))
for key := range tups {
keys = append(keys, key)
}
sort.Strings(keys)
var ret []byte
for _, key := range keys {
s := optionsTuple{Key: key}
if value := tups[key]; len(value) > 0 {
s.Value = Marshal(&optionsTupleValue{value})
}
ret = append(ret, Marshal(&s)...)
}
return ret
}
// issue #10569 - per [PROTOCOL.certkeys] and SSH implementation,
// we need two length prefixes for a non-empty option value
func parseTuples(in []byte) (map[string]string, error) {
tups := map[string]string{}
var lastKey string
var haveLastKey bool
for len(in) > 0 {
var key, val, extra []byte
var ok bool
if key, in, ok = parseString(in); !ok {
return nil, errShortRead
}
keyStr := string(key)
// according to [PROTOCOL.certkeys], the names must be in
// lexical order.
if haveLastKey && keyStr <= lastKey {
return nil, fmt.Errorf("ssh: certificate options are not in lexical order")
}
lastKey, haveLastKey = keyStr, true
// the next field is a data field, which if non-empty has a string embedded
if val, in, ok = parseString(in); !ok {
return nil, errShortRead
}
if len(val) > 0 {
val, extra, ok = parseString(val)
if !ok {
return nil, errShortRead
}
if len(extra) > 0 {
return nil, fmt.Errorf("ssh: unexpected trailing data after certificate option value")
}
tups[keyStr] = string(val)
} else {
tups[keyStr] = ""
}
}
return tups, nil
}
func parseCert(in []byte, privAlgo string) (*Certificate, error) {
nonce, rest, ok := parseString(in)
if !ok {
return nil, errShortRead
}
key, rest, err := parsePubKey(rest, privAlgo)
if err != nil {
return nil, err
}
var g genericCertData
if err := Unmarshal(rest, &g); err != nil {
return nil, err
}
c := &Certificate{
Nonce: nonce,
Key: key,
Serial: g.Serial,
CertType: g.CertType,
KeyId: g.KeyId,
ValidAfter: g.ValidAfter,
ValidBefore: g.ValidBefore,
}
for principals := g.ValidPrincipals; len(principals) > 0; {
principal, rest, ok := parseString(principals)
if !ok {
return nil, errShortRead
}
c.ValidPrincipals = append(c.ValidPrincipals, string(principal))
principals = rest
}
c.CriticalOptions, err = parseTuples(g.CriticalOptions)
if err != nil {
return nil, err
}
c.Extensions, err = parseTuples(g.Extensions)
if err != nil {
return nil, err
}
c.Reserved = g.Reserved
k, err := ParsePublicKey(g.SignatureKey)
if err != nil {
return nil, err
}
c.SignatureKey = k
c.Signature, rest, ok = parseSignatureBody(g.Signature)
if !ok || len(rest) > 0 {
return nil, errors.New("ssh: signature parse error")
}
return c, nil
}
type openSSHCertSigner struct {
pub *Certificate
signer Signer
}
// NewCertSigner returns a Signer that signs with the given Certificate, whose
// private key is held by signer. It returns an error if the public key in cert
// doesn't match the key used by signer.
func NewCertSigner(cert *Certificate, signer Signer) (Signer, error) {
if bytes.Compare(cert.Key.Marshal(), signer.PublicKey().Marshal()) != 0 {
return nil, errors.New("ssh: signer and cert have different public key")
}
return &openSSHCertSigner{cert, signer}, nil
}
func (s *openSSHCertSigner) Sign(rand io.Reader, data []byte) (*Signature, error) {
return s.signer.Sign(rand, data)
}
func (s *openSSHCertSigner) PublicKey() PublicKey {
return s.pub
}
const sourceAddressCriticalOption = "source-address"
// CertChecker does the work of verifying a certificate. Its methods
// can be plugged into ClientConfig.HostKeyCallback and
// ServerConfig.PublicKeyCallback. For the CertChecker to work,
// minimally, the IsAuthority callback should be set.
type CertChecker struct {
// SupportedCriticalOptions lists the CriticalOptions that the
// server application layer understands. These are only used
// for user certificates.
SupportedCriticalOptions []string
// IsUserAuthority should return true if the key is recognized as an
// authority for the given user certificate. This allows for
// certificates to be signed by other certificates. This must be set
// if this CertChecker will be checking user certificates.
IsUserAuthority func(auth PublicKey) bool
// IsHostAuthority should report whether the key is recognized as
// an authority for this host. This allows for certificates to be
// signed by other keys, and for those other keys to only be valid
// signers for particular hostnames. This must be set if this
// CertChecker will be checking host certificates.
IsHostAuthority func(auth PublicKey, address string) bool
// Clock is used for verifying time stamps. If nil, time.Now
// is used.
Clock func() time.Time
// UserKeyFallback is called when CertChecker.Authenticate encounters a
// public key that is not a certificate. It must implement validation
// of user keys or else, if nil, all such keys are rejected.
UserKeyFallback func(conn ConnMetadata, key PublicKey) (*Permissions, error)
// HostKeyFallback is called when CertChecker.CheckHostKey encounters a
// public key that is not a certificate. It must implement host key
// validation or else, if nil, all such keys are rejected.
HostKeyFallback HostKeyCallback
// IsRevoked is called for each certificate so that revocation checking
// can be implemented. It should return true if the given certificate
// is revoked and false otherwise. If nil, no certificates are
// considered to have been revoked.
IsRevoked func(cert *Certificate) bool
}
// CheckHostKey checks a host key certificate. This method can be
// plugged into ClientConfig.HostKeyCallback.
func (c *CertChecker) CheckHostKey(addr string, remote net.Addr, key PublicKey) error {
cert, ok := key.(*Certificate)
if !ok {
if c.HostKeyFallback != nil {
return c.HostKeyFallback(addr, remote, key)
}
return errors.New("ssh: non-certificate host key")
}
if cert.CertType != HostCert {
return fmt.Errorf("ssh: certificate presented as a host key has type %d", cert.CertType)
}
if !c.IsHostAuthority(cert.SignatureKey, addr) {
return fmt.Errorf("ssh: no authorities for hostname: %v", addr)
}
hostname, _, err := net.SplitHostPort(addr)
if err != nil {
return err
}
// Pass hostname only as principal for host certificates (consistent with OpenSSH)
return c.CheckCert(hostname, cert)
}
// Authenticate checks a user certificate. Authenticate can be used as
// a value for ServerConfig.PublicKeyCallback.
func (c *CertChecker) Authenticate(conn ConnMetadata, pubKey PublicKey) (*Permissions, error) {
cert, ok := pubKey.(*Certificate)
if !ok {
if c.UserKeyFallback != nil {
return c.UserKeyFallback(conn, pubKey)
}
return nil, errors.New("ssh: normal key pairs not accepted")
}
if cert.CertType != UserCert {
return nil, fmt.Errorf("ssh: cert has type %d", cert.CertType)
}
if !c.IsUserAuthority(cert.SignatureKey) {
return nil, fmt.Errorf("ssh: certificate signed by unrecognized authority")
}
if err := c.CheckCert(conn.User(), cert); err != nil {
return nil, err
}
return &cert.Permissions, nil
}
// CheckCert checks CriticalOptions, ValidPrincipals, revocation, timestamp and
// the signature of the certificate.
func (c *CertChecker) CheckCert(principal string, cert *Certificate) error {
if c.IsRevoked != nil && c.IsRevoked(cert) {
return fmt.Errorf("ssh: certicate serial %d revoked", cert.Serial)
}
for opt, _ := range cert.CriticalOptions {
// sourceAddressCriticalOption will be enforced by
// serverAuthenticate
if opt == sourceAddressCriticalOption {
continue
}
found := false
for _, supp := range c.SupportedCriticalOptions {
if supp == opt {
found = true
break
}
}
if !found {
return fmt.Errorf("ssh: unsupported critical option %q in certificate", opt)
}
}
if len(cert.ValidPrincipals) > 0 {
// By default, certs are valid for all users/hosts.
found := false
for _, p := range cert.ValidPrincipals {
if p == principal {
found = true
break
}
}
if !found {
return fmt.Errorf("ssh: principal %q not in the set of valid principals for given certificate: %q", principal, cert.ValidPrincipals)
}
}
clock := c.Clock
if clock == nil {
clock = time.Now
}
unixNow := clock().Unix()
if after := int64(cert.ValidAfter); after < 0 || unixNow < int64(cert.ValidAfter) {
return fmt.Errorf("ssh: cert is not yet valid")
}
if before := int64(cert.ValidBefore); cert.ValidBefore != uint64(CertTimeInfinity) && (unixNow >= before || before < 0) {
return fmt.Errorf("ssh: cert has expired")
}
if err := cert.SignatureKey.Verify(cert.bytesForSigning(), cert.Signature); err != nil {
return fmt.Errorf("ssh: certificate signature does not verify")
}
return nil
}
// SignCert sets c.SignatureKey to the authority's public key and stores a
// Signature, by authority, in the certificate.
func (c *Certificate) SignCert(rand io.Reader, authority Signer) error {
c.Nonce = make([]byte, 32)
if _, err := io.ReadFull(rand, c.Nonce); err != nil {
return err
}
c.SignatureKey = authority.PublicKey()
sig, err := authority.Sign(rand, c.bytesForSigning())
if err != nil {
return err
}
c.Signature = sig
return nil
}
var certAlgoNames = map[string]string{
KeyAlgoRSA: CertAlgoRSAv01,
KeyAlgoDSA: CertAlgoDSAv01,
KeyAlgoECDSA256: CertAlgoECDSA256v01,
KeyAlgoECDSA384: CertAlgoECDSA384v01,
KeyAlgoECDSA521: CertAlgoECDSA521v01,
KeyAlgoED25519: CertAlgoED25519v01,
}
// certToPrivAlgo returns the underlying algorithm for a certificate algorithm.
// Panics if a non-certificate algorithm is passed.
func certToPrivAlgo(algo string) string {
for privAlgo, pubAlgo := range certAlgoNames {
if pubAlgo == algo {
return privAlgo
}
}
panic("unknown cert algorithm")
}
func (cert *Certificate) bytesForSigning() []byte {
c2 := *cert
c2.Signature = nil
out := c2.Marshal()
// Drop trailing signature length.
return out[:len(out)-4]
}
// Marshal serializes c into OpenSSH's wire format. It is part of the
// PublicKey interface.
func (c *Certificate) Marshal() []byte {
generic := genericCertData{
Serial: c.Serial,
CertType: c.CertType,
KeyId: c.KeyId,
ValidPrincipals: marshalStringList(c.ValidPrincipals),
ValidAfter: uint64(c.ValidAfter),
ValidBefore: uint64(c.ValidBefore),
CriticalOptions: marshalTuples(c.CriticalOptions),
Extensions: marshalTuples(c.Extensions),
Reserved: c.Reserved,
SignatureKey: c.SignatureKey.Marshal(),
}
if c.Signature != nil {
generic.Signature = Marshal(c.Signature)
}
genericBytes := Marshal(&generic)
keyBytes := c.Key.Marshal()
_, keyBytes, _ = parseString(keyBytes)
prefix := Marshal(&struct {
Name string
Nonce []byte
Key []byte `ssh:"rest"`
}{c.Type(), c.Nonce, keyBytes})
result := make([]byte, 0, len(prefix)+len(genericBytes))
result = append(result, prefix...)
result = append(result, genericBytes...)
return result
}
// Type returns the key name. It is part of the PublicKey interface.
func (c *Certificate) Type() string {
algo, ok := certAlgoNames[c.Key.Type()]
if !ok {
panic("unknown cert key type " + c.Key.Type())
}
return algo
}
// Verify verifies a signature against the certificate's public
// key. It is part of the PublicKey interface.
func (c *Certificate) Verify(data []byte, sig *Signature) error {
return c.Key.Verify(data, sig)
}
func parseSignatureBody(in []byte) (out *Signature, rest []byte, ok bool) {
format, in, ok := parseString(in)
if !ok {
return
}
out = &Signature{
Format: string(format),
}
if out.Blob, in, ok = parseString(in); !ok {
return
}
return out, in, ok
}
func parseSignature(in []byte) (out *Signature, rest []byte, ok bool) {
sigBytes, rest, ok := parseString(in)
if !ok {
return
}
out, trailing, ok := parseSignatureBody(sigBytes)
if !ok || len(trailing) > 0 {
return nil, nil, false
}
return
}

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