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// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package repository
import (
"fmt"
"os"
"path/filepath"
"runtime"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
)
func getHookTemplates() (hookNames, hookTpls, giteaHookTpls []string) {
hookNames = []string{"pre-receive", "update", "post-receive"}
hookTpls = []string{
// for pre-receive
fmt.Sprintf(`#!/usr/bin/env %s
# AUTO GENERATED BY GITEA, DO NOT MODIFY
data=$(cat)
exitcodes=""
hookname=$(basename $0)
GIT_DIR=${GIT_DIR:-$(dirname $0)/..}
for hook in ${GIT_DIR}/hooks/${hookname}.d/*; do
test -x "${hook}" && test -f "${hook}" || continue
echo "${data}" | "${hook}"
exitcodes="${exitcodes} $?"
done
for i in ${exitcodes}; do
[ ${i} -eq 0 ] || exit ${i}
done
`, setting.ScriptType),
// for update
fmt.Sprintf(`#!/usr/bin/env %s
# AUTO GENERATED BY GITEA, DO NOT MODIFY
exitcodes=""
hookname=$(basename $0)
GIT_DIR=${GIT_DIR:-$(dirname $0/..)}
for hook in ${GIT_DIR}/hooks/${hookname}.d/*; do
test -x "${hook}" && test -f "${hook}" || continue
"${hook}" $1 $2 $3
exitcodes="${exitcodes} $?"
done
for i in ${exitcodes}; do
[ ${i} -eq 0 ] || exit ${i}
done
`, setting.ScriptType),
// for post-receive
fmt.Sprintf(`#!/usr/bin/env %s
# AUTO GENERATED BY GITEA, DO NOT MODIFY
data=$(cat)
exitcodes=""
hookname=$(basename $0)
GIT_DIR=${GIT_DIR:-$(dirname $0)/..}
for hook in ${GIT_DIR}/hooks/${hookname}.d/*; do
test -x "${hook}" && test -f "${hook}" || continue
echo "${data}" | "${hook}"
exitcodes="${exitcodes} $?"
done
for i in ${exitcodes}; do
[ ${i} -eq 0 ] || exit ${i}
done
`, setting.ScriptType),
}
giteaHookTpls = []string{
// for pre-receive
fmt.Sprintf(`#!/usr/bin/env %s
# AUTO GENERATED BY GITEA, DO NOT MODIFY
%s hook --config=%s pre-receive
`, setting.ScriptType, util.ShellEscape(setting.AppPath), util.ShellEscape(setting.CustomConf)),
// for update
fmt.Sprintf(`#!/usr/bin/env %s
# AUTO GENERATED BY GITEA, DO NOT MODIFY
%s hook --config=%s update $1 $2 $3
`, setting.ScriptType, util.ShellEscape(setting.AppPath), util.ShellEscape(setting.CustomConf)),
// for post-receive
fmt.Sprintf(`#!/usr/bin/env %s
# AUTO GENERATED BY GITEA, DO NOT MODIFY
%s hook --config=%s post-receive
`, setting.ScriptType, util.ShellEscape(setting.AppPath), util.ShellEscape(setting.CustomConf)),
}
// although only new git (>=2.29) supports proc-receive, it's still good to create its hook, in case the user upgrades git
hookNames = append(hookNames, "proc-receive")
hookTpls = append(hookTpls,
fmt.Sprintf(`#!/usr/bin/env %s
# AUTO GENERATED BY GITEA, DO NOT MODIFY
%s hook --config=%s proc-receive
`, setting.ScriptType, util.ShellEscape(setting.AppPath), util.ShellEscape(setting.CustomConf)))
giteaHookTpls = append(giteaHookTpls, "")
return hookNames, hookTpls, giteaHookTpls
}
// CreateDelegateHooks creates all the hooks scripts for the repo
func CreateDelegateHooks(repoPath string) (err error) {
hookNames, hookTpls, giteaHookTpls := getHookTemplates()
hookDir := filepath.Join(repoPath, "hooks")
for i, hookName := range hookNames {
oldHookPath := filepath.Join(hookDir, hookName)
newHookPath := filepath.Join(hookDir, hookName+".d", "gitea")
if err := os.MkdirAll(filepath.Join(hookDir, hookName+".d"), os.ModePerm); err != nil {
return fmt.Errorf("create hooks dir '%s': %w", filepath.Join(hookDir, hookName+".d"), err)
}
// WARNING: This will override all old server-side hooks
if err = util.Remove(oldHookPath); err != nil && !os.IsNotExist(err) {
return fmt.Errorf("unable to pre-remove old hook file '%s' prior to rewriting: %w ", oldHookPath, err)
}
if err = os.WriteFile(oldHookPath, []byte(hookTpls[i]), 0o777); err != nil {
return fmt.Errorf("write old hook file '%s': %w", oldHookPath, err)
}
if err = ensureExecutable(oldHookPath); err != nil {
return fmt.Errorf("Unable to set %s executable. Error %w", oldHookPath, err)
}
if err = util.Remove(newHookPath); err != nil && !os.IsNotExist(err) {
return fmt.Errorf("unable to pre-remove new hook file '%s' prior to rewriting: %w", newHookPath, err)
}
if err = os.WriteFile(newHookPath, []byte(giteaHookTpls[i]), 0o777); err != nil {
return fmt.Errorf("write new hook file '%s': %w", newHookPath, err)
}
if err = ensureExecutable(newHookPath); err != nil {
return fmt.Errorf("Unable to set %s executable. Error %w", oldHookPath, err)
}
}
return nil
}
func checkExecutable(filename string) bool {
// windows has no concept of a executable bit
if runtime.GOOS == "windows" {
return true
}
fileInfo, err := os.Stat(filename)
if err != nil {
return false
}
return (fileInfo.Mode() & 0o100) > 0
}
func ensureExecutable(filename string) error {
fileInfo, err := os.Stat(filename)
if err != nil {
return err
}
if (fileInfo.Mode() & 0o100) > 0 {
return nil
}
mode := fileInfo.Mode() | 0o100
return os.Chmod(filename, mode)
}
// CheckDelegateHooks checks the hooks scripts for the repo
func CheckDelegateHooks(repoPath string) ([]string, error) {
hookNames, hookTpls, giteaHookTpls := getHookTemplates()
hookDir := filepath.Join(repoPath, "hooks")
results := make([]string, 0, 10)
for i, hookName := range hookNames {
oldHookPath := filepath.Join(hookDir, hookName)
newHookPath := filepath.Join(hookDir, hookName+".d", "gitea")
cont := false
isExist, err := util.IsExist(oldHookPath)
if err != nil {
results = append(results, fmt.Sprintf("unable to check if %s exists. Error: %v", oldHookPath, err))
}
if err == nil && !isExist {
results = append(results, fmt.Sprintf("old hook file %s does not exist", oldHookPath))
cont = true
}
isExist, err = util.IsExist(oldHookPath + ".d")
if err != nil {
results = append(results, fmt.Sprintf("unable to check if %s exists. Error: %v", oldHookPath+".d", err))
}
if err == nil && !isExist {
results = append(results, fmt.Sprintf("hooks directory %s does not exist", oldHookPath+".d"))
cont = true
}
isExist, err = util.IsExist(newHookPath)
if err != nil {
results = append(results, fmt.Sprintf("unable to check if %s exists. Error: %v", newHookPath, err))
}
if err == nil && !isExist {
results = append(results, fmt.Sprintf("new hook file %s does not exist", newHookPath))
cont = true
}
if cont {
continue
}
contents, err := os.ReadFile(oldHookPath)
if err != nil {
return results, err
}
if string(contents) != hookTpls[i] {
results = append(results, fmt.Sprintf("old hook file %s is out of date", oldHookPath))
}
if !checkExecutable(oldHookPath) {
results = append(results, fmt.Sprintf("old hook file %s is not executable", oldHookPath))
}
contents, err = os.ReadFile(newHookPath)
if err != nil {
return results, err
}
if string(contents) != giteaHookTpls[i] {
results = append(results, fmt.Sprintf("new hook file %s is out of date", newHookPath))
}
if !checkExecutable(newHookPath) {
results = append(results, fmt.Sprintf("new hook file %s is not executable", newHookPath))
}
}
return results, nil
}
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