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Merge pull request #964 from phsmit/access_rewriteserv
Rewrite/simplify gogs serve
This commit is contained in:
commit
8d17ff8ce7
2 changed files with 54 additions and 85 deletions
135
cmd/serve.go
135
cmd/serve.go
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@ -21,6 +21,10 @@ import (
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"github.com/gogits/gogs/modules/uuid"
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)
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const (
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ACCESS_DENIED_MESSAGE = "Repository does not exist or you do not have access"
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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 should only be called by SSH shell",
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@ -51,72 +55,58 @@ func setup(logPath string) {
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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, strings.Replace(args, "'/", "'", 1)
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return ss[0], strings.Replace(ss[1], "'/", "'", 1)
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}
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var (
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COMMANDS_READONLY = map[string]models.AccessMode{
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"git-upload-pack": models.ACCESS_MODE_WRITE,
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"git upload-pack": models.ACCESS_MODE_WRITE,
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"git-upload-archive": models.ACCESS_MODE_WRITE,
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}
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COMMANDS_WRITE = map[string]models.AccessMode{
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"git-receive-pack": models.ACCESS_MODE_READ,
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"git receive-pack": models.ACCESS_MODE_READ,
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COMMANDS = map[string]models.AccessMode{
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"git-upload-pack": models.ACCESS_MODE_READ,
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"git-upload-archive": models.ACCESS_MODE_READ,
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"git-receive-pack": models.ACCESS_MODE_WRITE,
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}
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)
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func In(b string, sl map[string]models.AccessMode) bool {
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_, e := sl[b]
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return e
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}
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func runServ(c *cli.Context) {
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if c.IsSet("config") {
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setting.CustomConf = c.String("config")
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}
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setup("serv.log")
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if len(c.Args()) < 1 {
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log.GitLogger.Fatal(2, "Not enough arguments")
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fail := func(userMessage, logMessage string, args ...interface{}) {
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fmt.Fprintln(os.Stderr, "Gogs: ", userMessage)
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log.GitLogger.Fatal(2, logMessage, args...)
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}
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if len(c.Args()) < 1 {
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fail("Not enough arguments", "Not enough arugments")
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}
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keys := strings.Split(c.Args()[0], "-")
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if len(keys) != 2 {
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println("Gogs: auth file format error")
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log.GitLogger.Fatal(2, "Invalid auth file format: %s", os.Args[2])
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fail("key-id format error", "Invalid key id: %s", c.Args()[0])
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}
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keyId, err := com.StrTo(keys[1]).Int64()
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if err != nil {
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println("Gogs: auth file format error")
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log.GitLogger.Fatal(2, "Invalid auth file format: %v", err)
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fail("key-id format error", "Invalid key id: %s", err)
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}
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user, err := models.GetUserByKeyId(keyId)
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if err != nil {
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if err == models.ErrUserNotKeyOwner {
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println("Gogs: you are not the owner of SSH key")
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log.GitLogger.Fatal(2, "Invalid owner of SSH key: %d", keyId)
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}
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println("Gogs: internal error:", err.Error())
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log.GitLogger.Fatal(2, "Fail to get user by key ID(%d): %v", keyId, err)
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fail("internal error", "Fail to get user by key ID(%d): %v", keyId, err)
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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", user.Name, "! You've successfully authenticated, but Gogs does not provide shell access.")
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println("If this is what you do not expect, please log in with password and setup Gogs under another user.")
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if user.IsAdmin {
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println("If this is unexpected, please log in with password and setup Gogs under another user.")
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}
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return
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}
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@ -124,67 +114,47 @@ func runServ(c *cli.Context) {
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repoPath := strings.Trim(args, "'")
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rr := strings.SplitN(repoPath, "/", 2)
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if len(rr) != 2 {
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println("Gogs: unavailable repository", args)
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log.GitLogger.Fatal(2, "Unavailable repository: %v", args)
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fail("Invalid repository path", "Invalide repository path: %v", args)
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}
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repoUserName := rr[0]
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repoName := strings.TrimSuffix(rr[1], ".git")
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isWrite := In(verb, COMMANDS_WRITE)
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isRead := In(verb, COMMANDS_READONLY)
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repoUser, err := models.GetUserByName(repoUserName)
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if err != nil {
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if err == models.ErrUserNotExist {
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println("Gogs: given repository owner are not registered")
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log.GitLogger.Fatal(2, "Unregistered owner: %s", repoUserName)
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fail("Repository owner does not exist", "Unregistered owner: %s", repoUserName)
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}
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println("Gogs: internal error:", err.Error())
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log.GitLogger.Fatal(2, "Fail to get repository owner(%s): %v", repoUserName, err)
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fail("Internal error", "Fail to get repository owner(%s): %v", repoUserName, err)
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}
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// Access check.
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repo, err := models.GetRepositoryByName(repoUser.Id, repoName)
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if err != nil {
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if err == models.ErrRepoNotExist {
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println("Gogs: given repository does not exist")
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log.GitLogger.Fatal(2, "Repository does not exist: %s/%s", repoUser.Name, repoName)
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if user.Id == repoUser.Id || repoUser.IsOwnedBy(user.Id) {
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fail("Repository does not exist", "Repository does not exist: %s/%s", repoUser.Name, repoName)
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} else {
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fail(ACCESS_DENIED_MESSAGE, "Repository does not exist: %s/%s", repoUser.Name, repoName)
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}
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}
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println("Gogs: internal error:", err.Error())
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log.GitLogger.Fatal(2, "Fail to get repository: %v", err)
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fail("Internal error", "Fail to get repository: %v", err)
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}
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switch {
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case isWrite:
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has, err := models.HasAccess(user, repo, models.ACCESS_MODE_WRITE)
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if err != nil {
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println("Gogs: internal error:", err.Error())
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log.GitLogger.Fatal(2, "Fail to check write access:", err)
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} else if !has {
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println("You have no right to write this repository")
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log.GitLogger.Fatal(2, "User %s has no right to write repository %s", user.Name, repoPath)
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}
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requestedMode, has := COMMANDS[verb]
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if !has {
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fail("Unknown git command", "Unknown git command %s", verb)
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}
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if repo.IsMirror {
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println("You can't write to a mirror repository")
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log.GitLogger.Fatal(2, "User %s tried to write to a mirror repository %s", user.Name, repoPath)
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mode, err := models.AccessLevel(user, repo)
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if err != nil {
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fail("Internal error", "HasAccess fail: %v", err)
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} else if mode < requestedMode {
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clientMessage := ACCESS_DENIED_MESSAGE
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if mode >= models.ACCESS_MODE_READ {
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clientMessage = "You do not have sufficient authorization for this action"
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}
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case isRead:
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if !repo.IsPrivate {
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break
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}
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has, err := models.HasAccess(user, repo, models.ACCESS_MODE_READ)
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if err != nil {
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println("Gogs: internal error:", err.Error())
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log.GitLogger.Fatal(2, "Fail to check read access:", err)
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} else if !has {
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println("You have no right to access this repository")
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log.GitLogger.Fatal(2, "User %s has no right to read repository %s", user.Name, repoPath)
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}
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default:
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println("Unknown command: " + cmd)
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return
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fail(clientMessage,
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"User %s does not have level %v access to repository %s",
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user.Name, requestedMode, repoPath)
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}
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uuid := uuid.NewV4().String()
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@ -202,11 +172,10 @@ func runServ(c *cli.Context) {
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gitcmd.Stdin = os.Stdin
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gitcmd.Stderr = os.Stderr
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if err = gitcmd.Run(); err != nil {
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println("Gogs: internal error:", err.Error())
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log.GitLogger.Fatal(2, "Fail to execute git command: %v", err)
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fail("Internal error", "Fail to execute git command: %v", err)
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}
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if isWrite {
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if requestedMode == models.ACCESS_MODE_WRITE {
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tasks, err := models.GetUpdateTasksByUuid(uuid)
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if err != nil {
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log.GitLogger.Fatal(2, "GetUpdateTasksByUuid: %v", err)
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@ -228,10 +197,10 @@ func runServ(c *cli.Context) {
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// Update key activity.
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key, err := models.GetPublicKeyById(keyId)
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if err != nil {
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log.GitLogger.Fatal(2, "GetPublicKeyById: %v", err)
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fail("Internal error", "GetPublicKeyById: %v", err)
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}
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key.Updated = time.Now()
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if err = models.UpdatePublicKey(key); err != nil {
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log.GitLogger.Fatal(2, "UpdatePublicKey: %v", err)
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fail("Internal error", "UpdatePublicKey: %v", err)
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}
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}
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@ -40,7 +40,7 @@ var (
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ErrUserHasOrgs = errors.New("User still have membership of organization")
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ErrUserAlreadyExist = errors.New("User already exist")
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ErrUserNotExist = errors.New("User does not exist")
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ErrUserNotKeyOwner = errors.New("User does not the owner of public key")
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ErrPublicKeyNotExist = errors.New("Public key does not exist")
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ErrEmailAlreadyUsed = errors.New("E-mail already used")
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ErrEmailNotExist = errors.New("E-mail does not exist")
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ErrEmailNotActivated = errors.New("E-mail address has not been activated")
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@ -518,7 +518,7 @@ func GetUserByKeyId(keyId int64) (*User, error) {
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if err != nil {
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return nil, err
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} else if !has {
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return nil, ErrUserNotKeyOwner
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return nil, ErrPublicKeyNotExist
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}
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return user, nil
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}
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