159 lines
3.3 KiB
Go
159 lines
3.3 KiB
Go
package main
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import (
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"fmt"
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"os"
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"os/exec"
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"strconv"
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"strings"
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"github.com/codegangsta/cli"
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"github.com/gogits/gogs/models"
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)
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var (
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COMMANDS_READONLY = map[string]int{
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"git-upload-pack": models.AU_WRITABLE,
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"git upload-pack": models.AU_WRITABLE,
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"git-upload-archive": models.AU_WRITABLE,
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}
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COMMANDS_WRITE = map[string]int{
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"git-receive-pack": models.AU_READABLE,
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"git receive-pack": models.AU_READABLE,
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}
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)
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var CmdServ = cli.Command{
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Name: "serv",
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Usage: "This command just should be called by ssh shell",
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Description: `
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gogs serv provide access auth for repositories`,
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Action: runServ,
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Flags: []cli.Flag{
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//cli.BoolFlag{"update, u", "update pakcage(s) and dependencies if any"},
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//cli.BoolFlag{"verbose, v", "show process details"},
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},
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}
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func In(b string, sl map[string]int) bool {
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_, e := sl[b]
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return e
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}
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func runServ(*cli.Context) {
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keys := strings.Split(os.Args[2], "-")
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if len(keys) != 2 {
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fmt.Println("auth file format error")
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return
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}
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keyId, err := strconv.ParseInt(keys[1], 10, 64)
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if err != nil {
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fmt.Println("auth file format error")
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return
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}
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user, err := models.GetUserByKeyId(keyId)
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if err != nil {
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fmt.Println("You have no right to access")
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return
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}
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cmd := os.Getenv("SSH_ORIGINAL_COMMAND")
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if cmd == "" {
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println("Hi %s! You've successfully authenticated, but Gogits does not provide shell access.\n", user.Name)
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return
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}
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verb, args := parseCmd(cmd)
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rRepo := strings.Trim(args, "'")
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rr := strings.SplitN(rRepo, "/", 2)
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if len(rr) != 2 {
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println("Unavilable repository", args)
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return
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}
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repoName := rr[1]
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if strings.HasSuffix(repoName, ".git") {
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repoName = repoName[:len(repoName)-4]
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}
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isWrite := In(verb, COMMANDS_WRITE)
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isRead := In(verb, COMMANDS_READONLY)
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switch {
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case isWrite:
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has, err := models.HasAccess(user.Name, repoName, models.AU_WRITABLE)
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if err != nil {
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println("Inernel error:", err)
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return
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}
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if !has {
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println("You have no right to write this repository")
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return
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}
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case isRead:
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has, err := models.HasAccess(user.Name, repoName, models.AU_READABLE)
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if err != nil {
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println("Inernel error")
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return
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}
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if !has {
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has, err = models.HasAccess(user.Name, repoName, models.AU_WRITABLE)
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if err != nil {
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println("Inernel error")
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return
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}
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}
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if !has {
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println("You have no right to access this repository")
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return
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}
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default:
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println("Unknown command")
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return
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}
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isExist, err := models.IsRepositoryExist(user, repoName)
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if err != nil {
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println("Inernel error:", err.Error())
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return
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}
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if !isExist {
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if isRead {
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println("Repository", user.Name+"/"+repoName, "is not exist")
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return
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} else if isWrite {
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_, err := models.CreateRepository(user, repoName)
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if err != nil {
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println("Create repository failed")
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return
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}
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}
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}
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gitcmd := exec.Command(verb, rRepo)
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gitcmd.Dir = models.RepoRootPath
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gitcmd.Stdout = os.Stdout
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gitcmd.Stdin = os.Stdin
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gitcmd.Stderr = os.Stderr
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err = gitcmd.Run()
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if err != nil {
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println("execute command error:", err.Error())
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}
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}
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func parseCmd(cmd string) (string, string) {
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ss := strings.SplitN(cmd, " ", 2)
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if len(ss) != 2 {
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return "", ""
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}
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verb, args := ss[0], ss[1]
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if verb == "git" {
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ss = strings.SplitN(args, " ", 2)
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args = ss[1]
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verb = fmt.Sprintf("%s %s", verb, ss[0])
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}
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return verb, args
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}
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