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// Copyright 2017 The Gitea 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 (
"bufio"
"bytes"
"fmt"
"os"
"path/filepath"
"strconv"
"strings"
"code.gitea.io/git"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/private"
"code.gitea.io/gitea/modules/setting"
"github.com/urfave/cli"
)
var (
// CmdHook represents the available hooks sub-command.
CmdHook = cli.Command{
Name: "hook",
Usage: "Delegate commands to corresponding Git hooks",
Description: "This should only be called by Git",
Flags: []cli.Flag{
cli.StringFlag{
Name: "config, c",
Value: "custom/conf/app.ini",
Usage: "Custom configuration file path",
},
},
Subcommands: []cli.Command{
subcmdHookPreReceive,
subcmdHookUpadte,
subcmdHookPostReceive,
},
}
subcmdHookPreReceive = cli.Command{
Name: "pre-receive",
Usage: "Delegate pre-receive Git hook",
Description: "This command should only be called by Git",
Action: runHookPreReceive,
}
subcmdHookUpadte = cli.Command{
Name: "update",
Usage: "Delegate update Git hook",
Description: "This command should only be called by Git",
Action: runHookUpdate,
}
subcmdHookPostReceive = cli.Command{
Name: "post-receive",
Usage: "Delegate post-receive Git hook",
Description: "This command should only be called by Git",
Action: runHookPostReceive,
}
)
func hookSetup(logPath string) {
setting.NewContext()
log.NewGitLogger(filepath.Join(setting.LogRootPath, logPath))
models.LoadConfigs()
}
func runHookPreReceive(c *cli.Context) error {
if len(os.Getenv("SSH_ORIGINAL_COMMAND")) == 0 {
return nil
}
if c.IsSet("config") {
setting.CustomConf = c.String("config")
} else if c.GlobalIsSet("config") {
setting.CustomConf = c.GlobalString("config")
}
hookSetup("hooks/pre-receive.log")
// the environment setted on serv command
repoID, _ := strconv.ParseInt(os.Getenv(models.ProtectedBranchRepoID), 10, 64)
isWiki := (os.Getenv(models.EnvRepoIsWiki) == "true")
username := os.Getenv(models.EnvRepoUsername)
reponame := os.Getenv(models.EnvRepoName)
userIDStr := os.Getenv(models.EnvPusherID)
repoPath := models.RepoPath(username, reponame)
buf := bytes.NewBuffer(nil)
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
buf.Write(scanner.Bytes())
buf.WriteByte('\n')
// TODO: support news feeds for wiki
if isWiki {
continue
}
fields := bytes.Fields(scanner.Bytes())
if len(fields) != 3 {
continue
}
oldCommitID := string(fields[0])
newCommitID := string(fields[1])
refFullName := string(fields[2])
branchName := strings.TrimPrefix(refFullName, git.BranchPrefix)
protectBranch, err := private.GetProtectedBranchBy(repoID, branchName)
if err != nil {
log.GitLogger.Fatal(2, "retrieve protected branches information failed")
}
if protectBranch != nil && protectBranch.IsProtected() {
// detect force push
if git.EmptySHA != oldCommitID {
output, err := git.NewCommand("rev-list", "--max-count=1", oldCommitID, "^"+newCommitID).RunInDir(repoPath)
if err != nil {
fail("Internal error", "Fail to detect force push: %v", err)
} else if len(output) > 0 {
fail(fmt.Sprintf("branch %s is protected from force push", branchName), "")
}
}
// check and deletion
if newCommitID == git.EmptySHA {
fail(fmt.Sprintf("branch %s is protected from deletion", branchName), "")
} else {
userID, _ := strconv.ParseInt(userIDStr, 10, 64)
canPush, err := private.CanUserPush(protectBranch.ID, userID)
if err != nil {
fail("Internal error", "Fail to detect user can push: %v", err)
} else if !canPush {
fail(fmt.Sprintf("protected branch %s can not be pushed to", branchName), "")
}
}
}
}
return nil
}
func runHookUpdate(c *cli.Context) error {
if len(os.Getenv("SSH_ORIGINAL_COMMAND")) == 0 {
return nil
}
if c.IsSet("config") {
setting.CustomConf = c.String("config")
} else if c.GlobalIsSet("config") {
setting.CustomConf = c.GlobalString("config")
}
hookSetup("hooks/update.log")
return nil
}
func runHookPostReceive(c *cli.Context) error {
if len(os.Getenv("SSH_ORIGINAL_COMMAND")) == 0 {
return nil
}
if c.IsSet("config") {
setting.CustomConf = c.String("config")
} else if c.GlobalIsSet("config") {
setting.CustomConf = c.GlobalString("config")
}
hookSetup("hooks/post-receive.log")
// the environment setted on serv command
repoUser := os.Getenv(models.EnvRepoUsername)
isWiki := (os.Getenv(models.EnvRepoIsWiki) == "true")
repoName := os.Getenv(models.EnvRepoName)
pusherID, _ := strconv.ParseInt(os.Getenv(models.EnvPusherID), 10, 64)
pusherName := os.Getenv(models.EnvPusherName)
buf := bytes.NewBuffer(nil)
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
buf.Write(scanner.Bytes())
buf.WriteByte('\n')
// TODO: support news feeds for wiki
if isWiki {
continue
}
fields := bytes.Fields(scanner.Bytes())
if len(fields) != 3 {
continue
}
oldCommitID := string(fields[0])
newCommitID := string(fields[1])
refFullName := string(fields[2])
if err := private.PushUpdate(models.PushUpdateOptions{
RefFullName: refFullName,
OldCommitID: oldCommitID,
NewCommitID: newCommitID,
PusherID: pusherID,
PusherName: pusherName,
RepoUserName: repoUser,
RepoName: repoName,
}); err != nil {
log.GitLogger.Error(2, "Update: %v", err)
}
}
return nil
}
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