forgejo/cmd/serve.go
Unknwon 338af89d56 #2650 fix possbility that use email as pusher user name
Remove the possibility of using email as user name when user actually push
through combination of email and password with HTTP.

Also refactor update action function to replcae tons of arguments with
single PushUpdateOptions struct.
And define the user who pushes code as pusher, therefore variable names shouldn't
be confusing any more.
2016-02-17 22:47:06 -05:00

292 lines
7.8 KiB
Go

// 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.
package cmd
import (
"crypto/tls"
"fmt"
"os"
"os/exec"
"path/filepath"
"strings"
"time"
"github.com/Unknwon/com"
"github.com/codegangsta/cli"
"github.com/gogits/gogs/models"
"github.com/gogits/gogs/modules/base"
"github.com/gogits/gogs/modules/httplib"
"github.com/gogits/gogs/modules/log"
"github.com/gogits/gogs/modules/setting"
"github.com/gogits/gogs/modules/uuid"
)
const (
_ACCESS_DENIED_MESSAGE = "Repository does not exist or you do not have access"
)
var CmdServ = cli.Command{
Name: "serv",
Usage: "This command should only be called by SSH shell",
Description: `Serv provide access auth for repositories`,
Action: runServ,
Flags: []cli.Flag{
stringFlag("config, c", "custom/conf/app.ini", "Custom configuration file path"),
},
}
func setup(logPath string) {
setting.NewContext()
log.NewGitLogger(filepath.Join(setting.LogRootPath, logPath))
if setting.DisableSSH {
println("Gogs: SSH has been disabled")
os.Exit(1)
}
models.LoadConfigs()
if setting.UseSQLite3 || setting.UseTiDB {
workDir, _ := setting.WorkDir()
os.Chdir(workDir)
}
models.SetEngine()
}
func parseCmd(cmd string) (string, string) {
ss := strings.SplitN(cmd, " ", 2)
if len(ss) != 2 {
return "", ""
}
return ss[0], strings.Replace(ss[1], "'/", "'", 1)
}
var (
allowedCommands = 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,
}
)
func fail(userMessage, logMessage string, args ...interface{}) {
fmt.Fprintln(os.Stderr, "Gogs:", userMessage)
if len(logMessage) > 0 {
if !setting.ProdMode {
fmt.Fprintf(os.Stderr, logMessage+"\n", args...)
}
log.GitLogger.Fatal(3, logMessage, args...)
return
}
log.GitLogger.Close()
os.Exit(1)
}
func handleUpdateTask(uuid string, user, repoUser *models.User, reponame string, isWiki bool) {
task, err := models.GetUpdateTaskByUUID(uuid)
if err != nil {
if models.IsErrUpdateTaskNotExist(err) {
log.GitLogger.Trace("No update task is presented: %s", uuid)
return
}
log.GitLogger.Fatal(2, "GetUpdateTaskByUUID: %v", err)
} else if err = models.DeleteUpdateTaskByUUID(uuid); err != nil {
log.GitLogger.Fatal(2, "DeleteUpdateTaskByUUID: %v", err)
}
if isWiki {
return
}
if err = models.PushUpdate(models.PushUpdateOptions{
RefName: task.RefName,
OldCommitID: task.OldCommitID,
NewCommitID: task.NewCommitID,
PusherID: user.Id,
PusherName: user.Name,
RepoUserName: repoUser.Name,
RepoName: reponame,
}); err != nil {
log.GitLogger.Error(2, "Update: %v", err)
}
// Ask for running deliver hook and test pull request tasks.
reqURL := setting.LocalURL + repoUser.Name + "/" + reponame + "/tasks/trigger?branch=" +
strings.TrimPrefix(task.RefName, "refs/heads/") + "&secret=" + base.EncodeMD5(repoUser.Salt)
log.GitLogger.Trace("Trigger task: %s", reqURL)
resp, err := httplib.Head(reqURL).SetTLSClientConfig(&tls.Config{
InsecureSkipVerify: true,
}).Response()
if err == nil {
resp.Body.Close()
if resp.StatusCode/100 != 2 {
log.GitLogger.Error(2, "Fail to trigger task: not 2xx response code")
}
} else {
log.GitLogger.Error(2, "Fail to trigger task: %v", err)
}
}
func runServ(c *cli.Context) {
if c.IsSet("config") {
setting.CustomConf = c.String("config")
}
setup("serv.log")
if len(c.Args()) < 1 {
fail("Not enough arguments", "Not enough arguments")
}
cmd := os.Getenv("SSH_ORIGINAL_COMMAND")
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.")
return
}
verb, args := parseCmd(cmd)
repoPath := strings.ToLower(strings.Trim(args, "'"))
rr := strings.SplitN(repoPath, "/", 2)
if len(rr) != 2 {
fail("Invalid repository path", "Invalid repository path: %v", args)
}
username := strings.ToLower(rr[0])
reponame := strings.ToLower(strings.TrimSuffix(rr[1], ".git"))
isWiki := false
if strings.HasSuffix(reponame, ".wiki") {
isWiki = true
reponame = reponame[:len(reponame)-5]
}
repoUser, err := models.GetUserByName(username)
if err != nil {
if models.IsErrUserNotExist(err) {
fail("Repository owner does not exist", "Unregistered owner: %s", username)
}
fail("Internal error", "Failed to get repository owner (%s): %v", username, err)
}
repo, err := models.GetRepositoryByName(repoUser.Id, reponame)
if err != nil {
if models.IsErrRepoNotExist(err) {
fail(_ACCESS_DENIED_MESSAGE, "Repository does not exist: %s/%s", repoUser.Name, reponame)
}
fail("Internal error", "Failed to get repository: %v", err)
}
requestedMode, has := allowedCommands[verb]
if !has {
fail("Unknown git command", "Unknown git command %s", verb)
}
// Prohibit push to mirror repositories.
if requestedMode > models.ACCESS_MODE_READ && repo.IsMirror {
fail("mirror repository is read-only", "")
}
// 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 {
fail("Key ID format error", "Invalid key argument: %s", c.Args()[0])
}
key, err := models.GetPublicKeyByID(com.StrTo(keys[1]).MustInt64())
if err != nil {
fail("Invalid key ID", "Invalid key ID[%s]: %v", c.Args()[0], err)
}
keyID = key.ID
// 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.
if !models.HasDeployKey(key.ID, repo.ID) {
fail("Key access denied", "Deploy key access denied: [key_id: %d, repo_id: %d]", key.ID, repo.ID)
}
// Update deploy key activity.
deployKey, err := models.GetDeployKeyByRepo(key.ID, repo.ID)
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)
}
}
}
uuid := uuid.NewV4().String()
os.Setenv("uuid", uuid)
// Special handle for Windows.
if setting.IsWindows {
verb = strings.Replace(verb, "-", " ", 1)
}
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)
}
gitcmd.Dir = setting.RepoRootPath
gitcmd.Stdout = os.Stdout
gitcmd.Stdin = os.Stdin
gitcmd.Stderr = os.Stderr
if err = gitcmd.Run(); err != nil {
fail("Internal error", "Failed to execute git command: %v", err)
}
if requestedMode == models.ACCESS_MODE_WRITE {
handleUpdateTask(uuid, user, repoUser, reponame, isWiki)
}
// Update user key activity.
if keyID > 0 {
key, err := models.GetPublicKeyByID(keyID)
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)
}
}
}