A fork of Gitea (see branch `mj`) adding Majority Judgment Polls 𐄷 over Issues and Merge Requests. https://git.mieuxvoter.fr
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// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2019 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 wiki
import (
"fmt"
"net/url"
"os"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
repo_module "code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/sync"
"code.gitea.io/gitea/modules/util"
"github.com/unknwon/com"
)
var (
reservedWikiNames = []string{"_pages", "_new", "_edit", "raw"}
wikiWorkingPool = sync.NewExclusivePool()
)
func nameAllowed(name string) error {
if util.IsStringInSlice(name, reservedWikiNames) {
return models.ErrWikiReservedName{
Title: name,
}
}
return nil
}
// NameToSubURL converts a wiki name to its corresponding sub-URL.
func NameToSubURL(name string) string {
return url.QueryEscape(strings.ReplaceAll(name, " ", "-"))
}
// NormalizeWikiName normalizes a wiki name
func NormalizeWikiName(name string) string {
return strings.ReplaceAll(name, "-", " ")
}
// NameToFilename converts a wiki name to its corresponding filename.
func NameToFilename(name string) string {
name = strings.ReplaceAll(name, " ", "-")
return url.QueryEscape(name) + ".md"
}
// FilenameToName converts a wiki filename to its corresponding page name.
func FilenameToName(filename string) (string, error) {
if !strings.HasSuffix(filename, ".md") {
return "", models.ErrWikiInvalidFileName{
FileName: filename,
}
}
basename := filename[:len(filename)-3]
unescaped, err := url.QueryUnescape(basename)
if err != nil {
return "", err
}
return NormalizeWikiName(unescaped), nil
}
// InitWiki initializes a wiki for repository,
// it does nothing when repository already has wiki.
func InitWiki(repo *models.Repository) error {
if repo.HasWiki() {
return nil
}
if err := git.InitRepository(repo.WikiPath(), true); err != nil {
return fmt.Errorf("InitRepository: %v", err)
} else if err = repo_module.CreateDelegateHooks(repo.WikiPath()); err != nil {
return fmt.Errorf("createDelegateHooks: %v", err)
}
return nil
}
// updateWikiPage adds a new page to the repository wiki.
func updateWikiPage(doer *models.User, repo *models.Repository, oldWikiName, newWikiName, content, message string, isNew bool) (err error) {
if err = nameAllowed(newWikiName); err != nil {
return err
}
wikiWorkingPool.CheckIn(com.ToStr(repo.ID))
defer wikiWorkingPool.CheckOut(com.ToStr(repo.ID))
if err = InitWiki(repo); err != nil {
return fmt.Errorf("InitWiki: %v", err)
}
hasMasterBranch := git.IsBranchExist(repo.WikiPath(), "master")
basePath, err := models.CreateTemporaryPath("update-wiki")
if err != nil {
return err
}
defer func() {
if err := models.RemoveTemporaryPath(basePath); err != nil {
log.Error("Merge: RemoveTemporaryPath: %s", err)
}
}()
cloneOpts := git.CloneRepoOptions{
Bare: true,
Shared: true,
}
if hasMasterBranch {
cloneOpts.Branch = "master"
}
if err := git.Clone(repo.WikiPath(), basePath, cloneOpts); err != nil {
log.Error("Failed to clone repository: %s (%v)", repo.FullName(), err)
return fmt.Errorf("Failed to clone repository: %s (%v)", repo.FullName(), err)
}
gitRepo, err := git.OpenRepository(basePath)
if err != nil {
log.Error("Unable to open temporary repository: %s (%v)", basePath, err)
return fmt.Errorf("Failed to open new temporary repository in: %s %v", basePath, err)
}
defer gitRepo.Close()
if hasMasterBranch {
if err := gitRepo.ReadTreeToIndex("HEAD"); err != nil {
log.Error("Unable to read HEAD tree to index in: %s %v", basePath, err)
return fmt.Errorf("Unable to read HEAD tree to index in: %s %v", basePath, err)
}
}
newWikiPath := NameToFilename(newWikiName)
if isNew {
filesInIndex, err := gitRepo.LsFiles(newWikiPath)
if err != nil {
log.Error("%v", err)
return err
}
if util.IsStringInSlice(newWikiPath, filesInIndex) {
return models.ErrWikiAlreadyExist{
Title: newWikiPath,
}
}
} else {
oldWikiPath := NameToFilename(oldWikiName)
filesInIndex, err := gitRepo.LsFiles(oldWikiPath)
if err != nil {
log.Error("%v", err)
return err
}
if util.IsStringInSlice(oldWikiPath, filesInIndex) {
err := gitRepo.RemoveFilesFromIndex(oldWikiPath)
if err != nil {
log.Error("%v", err)
return err
}
}
}
// FIXME: The wiki doesn't have lfs support at present - if this changes need to check attributes here
objectHash, err := gitRepo.HashObject(strings.NewReader(content))
if err != nil {
log.Error("%v", err)
return err
}
if err := gitRepo.AddObjectToIndex("100644", objectHash, newWikiPath); err != nil {
log.Error("%v", err)
return err
}
tree, err := gitRepo.WriteTree()
if err != nil {
log.Error("%v", err)
return err
}
commitTreeOpts := git.CommitTreeOpts{
Message: message,
}
committer := doer.NewGitSig()
sign, signingKey, signer, _ := repo.SignWikiCommit(doer)
if sign {
commitTreeOpts.KeyID = signingKey
if repo.GetTrustModel() == models.CommitterTrustModel || repo.GetTrustModel() == models.CollaboratorCommitterTrustModel {
committer = signer
}
} else {
commitTreeOpts.NoGPGSign = true
}
if hasMasterBranch {
commitTreeOpts.Parents = []string{"HEAD"}
}
commitHash, err := gitRepo.CommitTree(doer.NewGitSig(), committer, tree, commitTreeOpts)
if err != nil {
log.Error("%v", err)
return err
}
if err := git.Push(basePath, git.PushOptions{
Remote: "origin",
Branch: fmt.Sprintf("%s:%s%s", commitHash.String(), git.BranchPrefix, "master"),
Env: models.FullPushingEnvironment(
doer,
doer,
repo,
repo.Name+".wiki",
0,
),
}); err != nil {
log.Error("%v", err)
if git.IsErrPushOutOfDate(err) || git.IsErrPushRejected(err) {
return err
}
return fmt.Errorf("Push: %v", err)
}
return nil
}
// AddWikiPage adds a new wiki page with a given wikiPath.
func AddWikiPage(doer *models.User, repo *models.Repository, wikiName, content, message string) error {
return updateWikiPage(doer, repo, "", wikiName, content, message, true)
}
// EditWikiPage updates a wiki page identified by its wikiPath,
// optionally also changing wikiPath.
func EditWikiPage(doer *models.User, repo *models.Repository, oldWikiName, newWikiName, content, message string) error {
return updateWikiPage(doer, repo, oldWikiName, newWikiName, content, message, false)
}
// DeleteWikiPage deletes a wiki page identified by its path.
func DeleteWikiPage(doer *models.User, repo *models.Repository, wikiName string) (err error) {
wikiWorkingPool.CheckIn(com.ToStr(repo.ID))
defer wikiWorkingPool.CheckOut(com.ToStr(repo.ID))
if err = InitWiki(repo); err != nil {
return fmt.Errorf("InitWiki: %v", err)
}
basePath, err := models.CreateTemporaryPath("update-wiki")
if err != nil {
return err
}
defer func() {
if err := models.RemoveTemporaryPath(basePath); err != nil {
log.Error("Merge: RemoveTemporaryPath: %s", err)
}
}()
if err := git.Clone(repo.WikiPath(), basePath, git.CloneRepoOptions{
Bare: true,
Shared: true,
Branch: "master",
}); err != nil {
log.Error("Failed to clone repository: %s (%v)", repo.FullName(), err)
return fmt.Errorf("Failed to clone repository: %s (%v)", repo.FullName(), err)
}
gitRepo, err := git.OpenRepository(basePath)
if err != nil {
log.Error("Unable to open temporary repository: %s (%v)", basePath, err)
return fmt.Errorf("Failed to open new temporary repository in: %s %v", basePath, err)
}
defer gitRepo.Close()
if err := gitRepo.ReadTreeToIndex("HEAD"); err != nil {
log.Error("Unable to read HEAD tree to index in: %s %v", basePath, err)
return fmt.Errorf("Unable to read HEAD tree to index in: %s %v", basePath, err)
}
wikiPath := NameToFilename(wikiName)
filesInIndex, err := gitRepo.LsFiles(wikiPath)
found := false
for _, file := range filesInIndex {
if file == wikiPath {
found = true
break
}
}
if found {
err := gitRepo.RemoveFilesFromIndex(wikiPath)
if err != nil {
return err
}
} else {
return os.ErrNotExist
}
// FIXME: The wiki doesn't have lfs support at present - if this changes need to check attributes here
tree, err := gitRepo.WriteTree()
if err != nil {
return err
}
message := "Delete page '" + wikiName + "'"
commitTreeOpts := git.CommitTreeOpts{
Message: message,
Parents: []string{"HEAD"},
}
committer := doer.NewGitSig()
sign, signingKey, signer, _ := repo.SignWikiCommit(doer)
if sign {
commitTreeOpts.KeyID = signingKey
if repo.GetTrustModel() == models.CommitterTrustModel || repo.GetTrustModel() == models.CollaboratorCommitterTrustModel {
committer = signer
}
} else {
commitTreeOpts.NoGPGSign = true
}
commitHash, err := gitRepo.CommitTree(doer.NewGitSig(), committer, tree, commitTreeOpts)
if err != nil {
return err
}
if err := git.Push(basePath, git.PushOptions{
Remote: "origin",
Branch: fmt.Sprintf("%s:%s%s", commitHash.String(), git.BranchPrefix, "master"),
Env: models.PushingEnvironment(doer, repo),
}); err != nil {
if git.IsErrPushOutOfDate(err) || git.IsErrPushRejected(err) {
return err
}
return fmt.Errorf("Push: %v", err)
}
return nil
}