360 lines
10 KiB
Go
360 lines
10 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
|
|
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package wiki
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
"strings"
|
|
|
|
repo_model "code.gitea.io/gitea/models/repo"
|
|
system_model "code.gitea.io/gitea/models/system"
|
|
"code.gitea.io/gitea/models/unit"
|
|
user_model "code.gitea.io/gitea/models/user"
|
|
"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"
|
|
asymkey_service "code.gitea.io/gitea/services/asymkey"
|
|
)
|
|
|
|
// TODO: use clustered lock (unique queue? or *abuse* cache)
|
|
var wikiWorkingPool = sync.NewExclusivePool()
|
|
|
|
const (
|
|
DefaultRemote = "origin"
|
|
DefaultBranch = "master"
|
|
)
|
|
|
|
// InitWiki initializes a wiki for repository,
|
|
// it does nothing when repository already has wiki.
|
|
func InitWiki(ctx context.Context, repo *repo_model.Repository) error {
|
|
if repo.HasWiki() {
|
|
return nil
|
|
}
|
|
|
|
if err := git.InitRepository(ctx, repo.WikiPath(), true); err != nil {
|
|
return fmt.Errorf("InitRepository: %w", err)
|
|
} else if err = repo_module.CreateDelegateHooks(repo.WikiPath()); err != nil {
|
|
return fmt.Errorf("createDelegateHooks: %w", err)
|
|
} else if _, _, err = git.NewCommand(ctx, "symbolic-ref", "HEAD", git.BranchPrefix+DefaultBranch).RunStdString(&git.RunOpts{Dir: repo.WikiPath()}); err != nil {
|
|
return fmt.Errorf("unable to set default wiki branch to master: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// prepareGitPath try to find a suitable file path with file name by the given raw wiki name.
|
|
// return: existence, prepared file path with name, error
|
|
func prepareGitPath(gitRepo *git.Repository, wikiPath WebPath) (bool, string, error) {
|
|
unescaped := string(wikiPath) + ".md"
|
|
gitPath := WebPathToGitPath(wikiPath)
|
|
|
|
// Look for both files
|
|
filesInIndex, err := gitRepo.LsTree(DefaultBranch, unescaped, gitPath)
|
|
if err != nil {
|
|
if strings.Contains(err.Error(), "Not a valid object name master") {
|
|
return false, gitPath, nil
|
|
}
|
|
log.Error("%v", err)
|
|
return false, gitPath, err
|
|
}
|
|
|
|
foundEscaped := false
|
|
for _, filename := range filesInIndex {
|
|
switch filename {
|
|
case unescaped:
|
|
// if we find the unescaped file return it
|
|
return true, unescaped, nil
|
|
case gitPath:
|
|
foundEscaped = true
|
|
}
|
|
}
|
|
|
|
// If not return whether the escaped file exists, and the escaped filename to keep backwards compatibility.
|
|
return foundEscaped, gitPath, nil
|
|
}
|
|
|
|
// updateWikiPage adds a new page or edits an existing page in repository wiki.
|
|
func updateWikiPage(ctx context.Context, doer *user_model.User, repo *repo_model.Repository, oldWikiName, newWikiName WebPath, content, message string, isNew bool) (err error) {
|
|
err = repo.MustNotBeArchived()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if err = validateWebPath(newWikiName); err != nil {
|
|
return err
|
|
}
|
|
wikiWorkingPool.CheckIn(fmt.Sprint(repo.ID))
|
|
defer wikiWorkingPool.CheckOut(fmt.Sprint(repo.ID))
|
|
|
|
if err = InitWiki(ctx, repo); err != nil {
|
|
return fmt.Errorf("InitWiki: %w", err)
|
|
}
|
|
|
|
hasMasterBranch := git.IsBranchExist(ctx, repo.WikiPath(), DefaultBranch)
|
|
|
|
basePath, err := repo_module.CreateTemporaryPath("update-wiki")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() {
|
|
if err := repo_module.RemoveTemporaryPath(basePath); err != nil {
|
|
log.Error("Merge: RemoveTemporaryPath: %s", err)
|
|
}
|
|
}()
|
|
|
|
cloneOpts := git.CloneRepoOptions{
|
|
Bare: true,
|
|
Shared: true,
|
|
}
|
|
|
|
if hasMasterBranch {
|
|
cloneOpts.Branch = DefaultBranch
|
|
}
|
|
|
|
if err := git.Clone(ctx, 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 (%w)", repo.FullName(), err)
|
|
}
|
|
|
|
gitRepo, err := git.OpenRepository(ctx, 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 %w", 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("fnable to read HEAD tree to index in: %s %w", basePath, err)
|
|
}
|
|
}
|
|
|
|
isWikiExist, newWikiPath, err := prepareGitPath(gitRepo, newWikiName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if isNew {
|
|
if isWikiExist {
|
|
return repo_model.ErrWikiAlreadyExist{
|
|
Title: newWikiPath,
|
|
}
|
|
}
|
|
} else {
|
|
// avoid check existence again if wiki name is not changed since gitRepo.LsFiles(...) is not free.
|
|
isOldWikiExist := true
|
|
oldWikiPath := newWikiPath
|
|
if oldWikiName != newWikiName {
|
|
isOldWikiExist, oldWikiPath, err = prepareGitPath(gitRepo, oldWikiName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if isOldWikiExist {
|
|
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, _ := asymkey_service.SignWikiCommit(ctx, repo.WikiPath(), doer)
|
|
if sign {
|
|
commitTreeOpts.KeyID = signingKey
|
|
if repo.GetTrustModel() == repo_model.CommitterTrustModel || repo.GetTrustModel() == repo_model.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(gitRepo.Ctx, basePath, git.PushOptions{
|
|
Remote: DefaultRemote,
|
|
Branch: fmt.Sprintf("%s:%s%s", commitHash.String(), git.BranchPrefix, DefaultBranch),
|
|
Env: repo_module.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: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// AddWikiPage adds a new wiki page with a given wikiPath.
|
|
func AddWikiPage(ctx context.Context, doer *user_model.User, repo *repo_model.Repository, wikiName WebPath, content, message string) error {
|
|
return updateWikiPage(ctx, doer, repo, "", wikiName, content, message, true)
|
|
}
|
|
|
|
// EditWikiPage updates a wiki page identified by its wikiPath,
|
|
// optionally also changing wikiPath.
|
|
func EditWikiPage(ctx context.Context, doer *user_model.User, repo *repo_model.Repository, oldWikiName, newWikiName WebPath, content, message string) error {
|
|
return updateWikiPage(ctx, doer, repo, oldWikiName, newWikiName, content, message, false)
|
|
}
|
|
|
|
// DeleteWikiPage deletes a wiki page identified by its path.
|
|
func DeleteWikiPage(ctx context.Context, doer *user_model.User, repo *repo_model.Repository, wikiName WebPath) (err error) {
|
|
err = repo.MustNotBeArchived()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
wikiWorkingPool.CheckIn(fmt.Sprint(repo.ID))
|
|
defer wikiWorkingPool.CheckOut(fmt.Sprint(repo.ID))
|
|
|
|
if err = InitWiki(ctx, repo); err != nil {
|
|
return fmt.Errorf("InitWiki: %w", err)
|
|
}
|
|
|
|
basePath, err := repo_module.CreateTemporaryPath("update-wiki")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() {
|
|
if err := repo_module.RemoveTemporaryPath(basePath); err != nil {
|
|
log.Error("Merge: RemoveTemporaryPath: %s", err)
|
|
}
|
|
}()
|
|
|
|
if err := git.Clone(ctx, repo.WikiPath(), basePath, git.CloneRepoOptions{
|
|
Bare: true,
|
|
Shared: true,
|
|
Branch: DefaultBranch,
|
|
}); err != nil {
|
|
log.Error("Failed to clone repository: %s (%v)", repo.FullName(), err)
|
|
return fmt.Errorf("failed to clone repository: %s (%w)", repo.FullName(), err)
|
|
}
|
|
|
|
gitRepo, err := git.OpenRepository(ctx, 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 %w", 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 %w", basePath, err)
|
|
}
|
|
|
|
found, wikiPath, err := prepareGitPath(gitRepo, wikiName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
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 := fmt.Sprintf("Delete page %q", wikiName)
|
|
commitTreeOpts := git.CommitTreeOpts{
|
|
Message: message,
|
|
Parents: []string{"HEAD"},
|
|
}
|
|
|
|
committer := doer.NewGitSig()
|
|
|
|
sign, signingKey, signer, _ := asymkey_service.SignWikiCommit(ctx, repo.WikiPath(), doer)
|
|
if sign {
|
|
commitTreeOpts.KeyID = signingKey
|
|
if repo.GetTrustModel() == repo_model.CommitterTrustModel || repo.GetTrustModel() == repo_model.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(gitRepo.Ctx, basePath, git.PushOptions{
|
|
Remote: DefaultRemote,
|
|
Branch: fmt.Sprintf("%s:%s%s", commitHash.String(), git.BranchPrefix, DefaultBranch),
|
|
Env: repo_module.FullPushingEnvironment(
|
|
doer,
|
|
doer,
|
|
repo,
|
|
repo.Name+".wiki",
|
|
0,
|
|
),
|
|
}); err != nil {
|
|
if git.IsErrPushOutOfDate(err) || git.IsErrPushRejected(err) {
|
|
return err
|
|
}
|
|
return fmt.Errorf("Push: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// DeleteWiki removes the actual and local copy of repository wiki.
|
|
func DeleteWiki(ctx context.Context, repo *repo_model.Repository) error {
|
|
if err := repo_model.UpdateRepositoryUnits(repo, nil, []unit.Type{unit.TypeWiki}); err != nil {
|
|
return err
|
|
}
|
|
|
|
system_model.RemoveAllWithNotice(ctx, "Delete repository wiki", repo.WikiPath())
|
|
return nil
|
|
}
|