dendrite/serverkeyapi/serverkeyapi.go

108 lines
3.2 KiB
Go

package serverkeyapi
import (
"crypto/ed25519"
"encoding/base64"
"github.com/gorilla/mux"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/config"
"github.com/matrix-org/dendrite/serverkeyapi/api"
"github.com/matrix-org/dendrite/serverkeyapi/internal"
"github.com/matrix-org/dendrite/serverkeyapi/inthttp"
"github.com/matrix-org/dendrite/serverkeyapi/storage"
"github.com/matrix-org/dendrite/serverkeyapi/storage/cache"
"github.com/matrix-org/gomatrixserverlib"
"github.com/sirupsen/logrus"
)
// AddInternalRoutes registers HTTP handlers for the internal API. Invokes functions
// on the given input API.
func AddInternalRoutes(router *mux.Router, intAPI api.ServerKeyInternalAPI, caches *caching.Caches) {
inthttp.AddRoutes(intAPI, router, caches)
}
// NewInternalAPI returns a concerete implementation of the internal API. Callers
// can call functions directly on the returned API or via an HTTP interface using AddInternalRoutes.
func NewInternalAPI(
cfg *config.ServerKeyAPI,
fedClient gomatrixserverlib.KeyClient,
caches *caching.Caches,
) api.ServerKeyInternalAPI {
innerDB, err := storage.NewDatabase(
&cfg.Database,
cfg.Matrix.ServerName,
cfg.Matrix.PrivateKey.Public().(ed25519.PublicKey),
cfg.Matrix.KeyID,
)
if err != nil {
logrus.WithError(err).Panicf("failed to connect to server key database")
}
serverKeyDB, err := cache.NewKeyDatabase(innerDB, caches)
if err != nil {
logrus.WithError(err).Panicf("failed to set up caching wrapper for server key database")
}
internalAPI := internal.ServerKeyAPI{
ServerName: cfg.Matrix.ServerName,
ServerPublicKey: cfg.Matrix.PrivateKey.Public().(ed25519.PublicKey),
ServerKeyID: cfg.Matrix.KeyID,
ServerKeyValidity: cfg.Matrix.KeyValidityPeriod,
OldServerKeys: cfg.Matrix.OldVerifyKeys,
FedClient: fedClient,
OurKeyRing: gomatrixserverlib.KeyRing{
KeyFetchers: []gomatrixserverlib.KeyFetcher{},
KeyDatabase: serverKeyDB,
},
}
addDirectFetcher := func() {
internalAPI.OurKeyRing.KeyFetchers = append(
internalAPI.OurKeyRing.KeyFetchers,
&gomatrixserverlib.DirectKeyFetcher{
Client: fedClient,
},
)
}
if cfg.PreferDirectFetch {
addDirectFetcher()
} else {
defer addDirectFetcher()
}
var b64e = base64.StdEncoding.WithPadding(base64.NoPadding)
for _, ps := range cfg.KeyPerspectives {
perspective := &gomatrixserverlib.PerspectiveKeyFetcher{
PerspectiveServerName: ps.ServerName,
PerspectiveServerKeys: map[gomatrixserverlib.KeyID]ed25519.PublicKey{},
Client: fedClient,
}
for _, key := range ps.Keys {
rawkey, err := b64e.DecodeString(key.PublicKey)
if err != nil {
logrus.WithError(err).WithFields(logrus.Fields{
"server_name": ps.ServerName,
"public_key": key.PublicKey,
}).Warn("Couldn't parse perspective key")
continue
}
perspective.PerspectiveServerKeys[key.KeyID] = rawkey
}
internalAPI.OurKeyRing.KeyFetchers = append(
internalAPI.OurKeyRing.KeyFetchers,
perspective,
)
logrus.WithFields(logrus.Fields{
"server_name": ps.ServerName,
"num_public_keys": len(ps.Keys),
}).Info("Enabled perspective key fetcher")
}
return &internalAPI
}