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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.
package cmd
import (
"bufio"
"bytes"
"crypto/tls"
"fmt"
"os"
"os/exec"
"path/filepath"
"strings"
"github.com/Unknwon/com"
"github.com/urfave/cli"
log "gopkg.in/clog.v1"
"github.com/gogits/git-module"
"github.com/gogits/gogs/models"
"github.com/gogits/gogs/modules/httplib"
"github.com/gogits/gogs/modules/setting"
http "github.com/gogits/gogs/routers/repo"
)
var (
Hook = cli.Command{
Name: "hook",
Usage: "Delegate commands to corresponding Git hooks",
Description: "All sub-commands should only be called by Git",
Flags: []cli.Flag{
stringFlag("config, c", "custom/conf/app.ini", "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 runHookPreReceive(c *cli.Context) error {
if len(os.Getenv("SSH_ORIGINAL_COMMAND")) == 0 {
return nil
}
setup(c, "hooks/pre-receive.log", true)
isWiki := strings.Contains(os.Getenv(http.ENV_REPO_CUSTOM_HOOKS_PATH), ".wiki.git/")
buf := bytes.NewBuffer(nil)
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
buf.Write(scanner.Bytes())
buf.WriteByte('\n')
if isWiki {
continue
}
fields := bytes.Fields(scanner.Bytes())
if len(fields) != 3 {
continue
}
oldCommitID := string(fields[0])
newCommitID := string(fields[1])
branchName := strings.TrimPrefix(string(fields[2]), git.BRANCH_PREFIX)
// Branch protection
repoID := com.StrTo(os.Getenv(http.ENV_REPO_ID)).MustInt64()
protectBranch, err := models.GetProtectBranchOfRepoByName(repoID, branchName)
if err != nil {
if models.IsErrBranchNotExist(err) {
continue
}
fail("Internal error", "GetProtectBranchOfRepoByName [repo_id: %d, branch: %s]: %v", repoID, branchName, err)
}
if !protectBranch.Protected {
continue
}
// Check if whitelist is enabled
userID := com.StrTo(os.Getenv(http.ENV_AUTH_USER_ID)).MustInt64()
if protectBranch.EnableWhitelist && !models.IsUserInProtectBranchWhitelist(repoID, userID, branchName) {
fail(fmt.Sprintf("Branch '%s' is protected and you are not in the push whitelist", branchName), "")
}
// Check if branch allows direct push
if protectBranch.RequirePullRequest {
fail(fmt.Sprintf("Branch '%s' is protected and commits must be merged through pull request", branchName), "")
}
// check and deletion
if newCommitID == git.EMPTY_SHA {
fail(fmt.Sprintf("Branch '%s' is protected from deletion", branchName), "")
}
// Check force push
output, err := git.NewCommand("rev-list", oldCommitID, "^"+newCommitID).Run()
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), "")
}
}
customHooksPath := filepath.Join(os.Getenv(http.ENV_REPO_CUSTOM_HOOKS_PATH), "pre-receive")
if !com.IsFile(customHooksPath) {
return nil
}
hookCmd := exec.Command(customHooksPath)
hookCmd.Stdout = os.Stdout
hookCmd.Stdin = buf
hookCmd.Stderr = os.Stderr
if err := hookCmd.Run(); err != nil {
fail("Internal error", "Fail to execute custom pre-receive hook: %v", err)
}
return nil
}
func runHookUpdate(c *cli.Context) error {
if len(os.Getenv("SSH_ORIGINAL_COMMAND")) == 0 {
return nil
}
setup(c, "hooks/update.log", false)
args := c.Args()
if len(args) != 3 {
fail("Arguments received are not equal to three", "Arguments received are not equal to three")
} else if len(args[0]) == 0 {
fail("First argument 'refName' is empty", "First argument 'refName' is empty")
}
customHooksPath := filepath.Join(os.Getenv(http.ENV_REPO_CUSTOM_HOOKS_PATH), "update")
if !com.IsFile(customHooksPath) {
return nil
}
hookCmd := exec.Command(customHooksPath, args...)
hookCmd.Stdout = os.Stdout
hookCmd.Stdin = os.Stdin
hookCmd.Stderr = os.Stderr
if err := hookCmd.Run(); err != nil {
fail("Internal error", "Fail to execute custom pre-receive hook: %v", err)
}
return nil
}
func runHookPostReceive(c *cli.Context) error {
if len(os.Getenv("SSH_ORIGINAL_COMMAND")) == 0 {
return nil
}
setup(c, "hooks/post-receive.log", true)
isWiki := strings.Contains(os.Getenv(http.ENV_REPO_CUSTOM_HOOKS_PATH), ".wiki.git/")
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
}
options := models.PushUpdateOptions{
OldCommitID: string(fields[0]),
NewCommitID: string(fields[1]),
RefFullName: string(fields[2]),
PusherID: com.StrTo(os.Getenv(http.ENV_AUTH_USER_ID)).MustInt64(),
PusherName: os.Getenv(http.ENV_AUTH_USER_NAME),
RepoUserName: os.Getenv(http.ENV_REPO_OWNER_NAME),
RepoName: os.Getenv(http.ENV_REPO_NAME),
}
if err := models.PushUpdate(options); err != nil {
log.Error(2, "PushUpdate: %v", err)
}
// Ask for running deliver hook and test pull request tasks.
reqURL := setting.LocalURL + options.RepoUserName + "/" + options.RepoName + "/tasks/trigger?branch=" +
strings.TrimPrefix(options.RefFullName, git.BRANCH_PREFIX) +
"&secret=" + os.Getenv(http.ENV_REPO_OWNER_SALT_MD5) +
"&pusher=" + os.Getenv(http.ENV_AUTH_USER_ID)
log.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.Error(2, "Fail to trigger task: not 2xx response code")
}
} else {
log.Error(2, "Fail to trigger task: %v", err)
}
}
customHooksPath := filepath.Join(os.Getenv(http.ENV_REPO_CUSTOM_HOOKS_PATH), "post-receive")
if !com.IsFile(customHooksPath) {
return nil
}
hookCmd := exec.Command(customHooksPath)
hookCmd.Stdout = os.Stdout
hookCmd.Stdin = buf
hookCmd.Stderr = os.Stderr
if err := hookCmd.Run(); err != nil {
fail("Internal error", "Fail to execute custom post-receive hook: %v", err)
}
return nil
}