bench-forgejo/cmd/serve.go

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// Copyright 2014 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
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package cmd
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import (
"fmt"
"os"
"os/exec"
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"path/filepath"
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"strings"
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"time"
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"github.com/Unknwon/com"
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"github.com/codegangsta/cli"
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"github.com/gogits/gogs/models"
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"github.com/gogits/gogs/modules/httplib"
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"github.com/gogits/gogs/modules/log"
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"github.com/gogits/gogs/modules/setting"
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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",
Usage: "This command should only be called by SSH shell",
Description: `Serv provide access auth for repositories`,
Action: runServ,
Flags: []cli.Flag{
cli.StringFlag{"config, c", "custom/conf/app.ini", "Custom configuration file path", ""},
},
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}
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func setup(logPath string) {
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setting.NewContext()
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log.NewGitLogger(filepath.Join(setting.LogRootPath, logPath))
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if setting.DisableSSH {
println("Gogs: SSH has been disabled")
os.Exit(1)
}
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models.LoadConfigs()
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if setting.UseSQLite3 || setting.UseTiDB {
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workDir, _ := setting.WorkDir()
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os.Chdir(workDir)
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}
models.SetEngine()
}
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func parseCmd(cmd string) (string, string) {
ss := strings.SplitN(cmd, " ", 2)
if len(ss) != 2 {
return "", ""
}
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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 = map[string]models.AccessMode{
"git-upload-pack": models.ACCESS_MODE_READ,
"git-upload-archive": models.ACCESS_MODE_READ,
"git-receive-pack": models.ACCESS_MODE_WRITE,
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}
)
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func fail(userMessage, logMessage string, args ...interface{}) {
fmt.Fprintln(os.Stderr, "Gogs:", userMessage)
log.GitLogger.Fatal(3, logMessage, args...)
}
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func runServ(c *cli.Context) {
if c.IsSet("config") {
setting.CustomConf = c.String("config")
}
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setup("serv.log")
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if len(c.Args()) < 1 {
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fail("Not enough arguments", "Not enough arguments")
}
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cmd := os.Getenv("SSH_ORIGINAL_COMMAND")
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if len(cmd) == 0 {
println("Hi there, You've successfully authenticated, but Gogs does not provide shell access.")
println("If this is unexpected, please log in with password and setup Gogs under another user.")
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return
}
verb, args := parseCmd(cmd)
repoPath := strings.Trim(args, "'")
rr := strings.SplitN(repoPath, "/", 2)
if len(rr) != 2 {
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fail("Invalid repository path", "Invalid repository path: %v", args)
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}
repoUserName := rr[0]
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repoName := strings.TrimSuffix(rr[1], ".git")
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repoUser, err := models.GetUserByName(repoUserName)
if err != nil {
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if models.IsErrUserNotExist(err) {
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fail("Repository owner does not exist", "Unregistered owner: %s", repoUserName)
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}
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fail("Internal error", "Failed to get repository owner(%s): %v", repoUserName, err)
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}
repo, err := models.GetRepositoryByName(repoUser.Id, repoName)
if err != nil {
if models.IsErrRepoNotExist(err) {
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fail(_ACCESS_DENIED_MESSAGE, "Repository does not exist: %s/%s", repoUser.Name, repoName)
}
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fail("Internal error", "Failed to get repository: %v", err)
}
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requestedMode, has := COMMANDS[verb]
if !has {
fail("Unknown git command", "Unknown git command %s", verb)
}
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// Allow anonymous clone for public repositories.
var (
keyID int64
user *models.User
)
if requestedMode == models.ACCESS_MODE_WRITE || repo.IsPrivate {
keys := strings.Split(c.Args()[0], "-")
if len(keys) != 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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key, err := models.GetPublicKeyByID(com.StrTo(keys[1]).MustInt64())
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if err != nil {
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fail("Key ID format error", "Invalid key ID[%s]: %v", c.Args()[0], err)
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}
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keyID = key.ID
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// Check deploy key or user key.
if key.Type == models.KEY_TYPE_DEPLOY {
if key.Mode < requestedMode {
fail("Key permission denied", "Cannot push with deployment key: %d", key.ID)
}
// Check if this deploy key belongs to current repository.
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if !models.HasDeployKey(key.ID, repo.ID) {
fail("Key access denied", "Key access denied: %d-%d", key.ID, repo.ID)
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}
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// Update deploy key activity.
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deployKey, err := models.GetDeployKeyByRepo(key.ID, repo.ID)
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if err != nil {
fail("Internal error", "GetDeployKey: %v", err)
}
deployKey.Updated = time.Now()
if err = models.UpdateDeployKey(deployKey); err != nil {
fail("Internal error", "UpdateDeployKey: %v", err)
}
} else {
user, err = models.GetUserByKeyId(key.ID)
if err != nil {
fail("internal error", "Failed to get user by key ID(%d): %v", keyID, err)
}
mode, err := models.AccessLevel(user, repo)
if err != nil {
fail("Internal error", "Fail to check access: %v", err)
} else if mode < requestedMode {
clientMessage := _ACCESS_DENIED_MESSAGE
if mode >= models.ACCESS_MODE_READ {
clientMessage = "You do not have sufficient authorization for this action"
}
fail(clientMessage,
"User %s does not have level %v access to repository %s",
user.Name, requestedMode, repoPath)
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}
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}
}
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uuid := uuid.NewV4().String()
os.Setenv("uuid", uuid)
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var gitcmd *exec.Cmd
verbs := strings.Split(verb, " ")
if len(verbs) == 2 {
gitcmd = exec.Command(verbs[0], verbs[1], repoPath)
} else {
gitcmd = exec.Command(verb, repoPath)
}
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gitcmd.Dir = setting.RepoRootPath
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gitcmd.Stdout = os.Stdout
gitcmd.Stdin = os.Stdin
gitcmd.Stderr = os.Stderr
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if err = gitcmd.Run(); err != nil {
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fail("Internal error", "Failed to execute git command: %v", err)
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}
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if requestedMode == models.ACCESS_MODE_WRITE {
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tasks, err := models.GetUpdateTasksByUuid(uuid)
if err != nil {
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log.GitLogger.Fatal(2, "GetUpdateTasksByUuid: %v", err)
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}
for _, task := range tasks {
err = models.Update(task.RefName, task.OldCommitId, task.NewCommitId,
user.Name, repoUserName, repoName, user.Id)
if err != nil {
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log.GitLogger.Error(2, "Failed to update: %v", err)
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}
}
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if err = models.DelUpdateTasksByUuid(uuid); err != nil {
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log.GitLogger.Fatal(2, "DelUpdateTasksByUuid: %v", err)
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}
}
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// Send deliver hook request.
resp, err := httplib.Head(setting.AppUrl + setting.AppSubUrl + repoUserName + "/" + repoName + "/hooks/trigger").Response()
if err == nil {
resp.Body.Close()
}
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// Update user key activity.
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if keyID > 0 {
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key, err := models.GetPublicKeyByID(keyID)
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if err != nil {
fail("Internal error", "GetPublicKeyById: %v", err)
}
key.Updated = time.Now()
if err = models.UpdatePublicKey(key); err != nil {
fail("Internal error", "UpdatePublicKey: %v", err)
}
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}
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}