Merge remote-tracking branch 'upstream/main'

zjjhot · zjjhot · commit 531539201296 · 2022-12-28T11:15:50.000+08:00
* upstream/main: Add option to prohibit fork if user reached maximum limit of repositories (go-gitea#21848) Update standard copyright header to use a placeholder year (go-gitea#22254) Add the 'ui.user' section to the cheat sheet (go-gitea#22249) Use complete SHA to create and query commit status (go-gitea#22244)
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -441,7 +441,7 @@ be reviewed by two maintainers and must pass the automatic tests.
 Code that you contribute should use the standard copyright header:
 
 ```
-// Copyright 2022 The Gitea Authors. All rights reserved.
+// Copyright <year> The Gitea Authors. All rights reserved.
 // SPDX-License-Identifier: MIT
 
 ```
diff --git a/custom/conf/app.example.ini b/custom/conf/app.example.ini
@@ -957,6 +957,9 @@ ROUTER = console
 ;; Don't allow download source archive files from UI
 ;DISABLE_DOWNLOAD_SOURCE_ARCHIVES = false
 
+;; Allow fork repositories without maximum number limit
+;ALLOW_FORK_WITHOUT_MAXIMUM_LIMIT = true
+
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;[repository.editor]
diff --git a/docs/content/doc/advanced/config-cheat-sheet.en-us.md b/docs/content/doc/advanced/config-cheat-sheet.en-us.md
@@ -112,6 +112,7 @@ In addition there is _`StaticRootPath`_ which can be set as a built-in at build
 - `ALLOW_ADOPTION_OF_UNADOPTED_REPOSITORIES`: **false**: Allow non-admin users to adopt unadopted repositories
 - `ALLOW_DELETION_OF_UNADOPTED_REPOSITORIES`: **false**: Allow non-admin users to delete unadopted repositories
 - `DISABLE_DOWNLOAD_SOURCE_ARCHIVES`: **false**: Don't allow download source archive files from UI
+- `ALLOW_FORK_WITHOUT_MAXIMUM_LIMIT`: **true**: Allow fork repositories without maximum number limit
 
 ### Repository - Editor (`repository.editor`)
 
@@ -239,6 +240,10 @@ The following configuration set `Content-Type: application/vnd.android.package-a
 - `NOTICE_PAGING_NUM`: **25**: Number of notices that are shown in one page.
 - `ORG_PAGING_NUM`: **50**: Number of organizations that are shown in one page.
 
+### UI - User (`ui.user`)
+
+- `REPO_PAGING_NUM`: **15**: Number of repos that are shown in one page.
+
 ### UI - Metadata (`ui.meta`)
 
 - `AUTHOR`: **Gitea - Git with a cup of tea**: Author meta tag of the homepage.
diff --git a/models/activities/action.go b/models/activities/action.go
@@ -272,7 +272,7 @@ func (a *Action) GetRefLink() string {
 		return a.GetRepoLink() + "/src/branch/" + util.PathEscapeSegments(strings.TrimPrefix(a.RefName, git.BranchPrefix))
 	case strings.HasPrefix(a.RefName, git.TagPrefix):
 		return a.GetRepoLink() + "/src/tag/" + util.PathEscapeSegments(strings.TrimPrefix(a.RefName, git.TagPrefix))
-	case len(a.RefName) == 40 && git.IsValidSHAPattern(a.RefName):
+	case len(a.RefName) == git.SHAFullLength && git.IsValidSHAPattern(a.RefName):
 		return a.GetRepoLink() + "/src/commit/" + a.RefName
 	default:
 		// FIXME: we will just assume it's a branch - this was the old way - at some point we may want to enforce that there is always a ref here.
diff --git a/models/git/commit_status.go b/models/git/commit_status.go
@@ -279,6 +279,10 @@ func NewCommitStatus(opts NewCommitStatusOptions) error {
 		return fmt.Errorf("NewCommitStatus[%s, %s]: no user specified", repoPath, opts.SHA)
 	}
 
+	if _, err := git.NewIDFromString(opts.SHA); err != nil {
+		return fmt.Errorf("NewCommitStatus[%s, %s]: invalid sha: %w", repoPath, opts.SHA, err)
+	}
+
 	ctx, committer, err := db.TxContext(db.DefaultContext)
 	if err != nil {
 		return fmt.Errorf("NewCommitStatus[repo_id: %d, user_id: %d, sha: %s]: %w", opts.Repo.ID, opts.Creator.ID, opts.SHA, err)
diff --git a/models/user/user.go b/models/user/user.go
@@ -275,6 +275,15 @@ func (u *User) CanEditGitHook() bool {
 	return !setting.DisableGitHooks && (u.IsAdmin || u.AllowGitHook)
 }
 
+// CanForkRepo returns if user login can fork a repository
+// It checks especially that the user can create repos, and potentially more
+func (u *User) CanForkRepo() bool {
+	if setting.Repository.AllowForkWithoutMaximumLimit {
+		return true
+	}
+	return u.CanCreateRepo()
+}
+
 // CanImportLocal returns true if user can migrate repository by local path.
 func (u *User) CanImportLocal() bool {
 	if !setting.ImportLocalPaths || u == nil {
diff --git a/modules/context/api.go b/modules/context/api.go
@@ -387,7 +387,7 @@ func RepoRefForAPI(next http.Handler) http.Handler {
 				return
 			}
 			ctx.Repo.CommitID = ctx.Repo.Commit.ID.String()
-		} else if len(refName) == 40 {
+		} else if len(refName) == git.SHAFullLength {
 			ctx.Repo.CommitID = refName
 			ctx.Repo.Commit, err = ctx.Repo.GitRepo.GetCommit(refName)
 			if err != nil {
diff --git a/modules/context/repo.go b/modules/context/repo.go
@@ -817,7 +817,7 @@ func getRefName(ctx *Context, pathType RepoRefType) string {
 		}
 		// For legacy and API support only full commit sha
 		parts := strings.Split(path, "/")
-		if len(parts) > 0 && len(parts[0]) == 40 {
+		if len(parts) > 0 && len(parts[0]) == git.SHAFullLength {
 			ctx.Repo.TreePath = strings.Join(parts[1:], "/")
 			return parts[0]
 		}
@@ -853,7 +853,7 @@ func getRefName(ctx *Context, pathType RepoRefType) string {
 		return getRefNameFromPath(ctx, path, ctx.Repo.GitRepo.IsTagExist)
 	case RepoRefCommit:
 		parts := strings.Split(path, "/")
-		if len(parts) > 0 && len(parts[0]) >= 7 && len(parts[0]) <= 40 {
+		if len(parts) > 0 && len(parts[0]) >= 7 && len(parts[0]) <= git.SHAFullLength {
 			ctx.Repo.TreePath = strings.Join(parts[1:], "/")
 			return parts[0]
 		}
@@ -962,7 +962,7 @@ func RepoRefByType(refType RepoRefType, ignoreNotExistErr ...bool) func(*Context
 					return
 				}
 				ctx.Repo.CommitID = ctx.Repo.Commit.ID.String()
-			} else if len(refName) >= 7 && len(refName) <= 40 {
+			} else if len(refName) >= 7 && len(refName) <= git.SHAFullLength {
 				ctx.Repo.IsViewCommit = true
 				ctx.Repo.CommitID = refName
 
@@ -972,7 +972,7 @@ func RepoRefByType(refType RepoRefType, ignoreNotExistErr ...bool) func(*Context
 					return
 				}
 				// If short commit ID add canonical link header
-				if len(refName) < 40 {
+				if len(refName) < git.SHAFullLength {
 					ctx.RespHeader().Set("Link", fmt.Sprintf("<%s>; rel=\"canonical\"",
 						util.URLJoin(setting.AppURL, strings.Replace(ctx.Req.URL.RequestURI(), util.PathEscapeSegments(refName), url.PathEscape(ctx.Repo.Commit.ID.String()), 1))))
 				}
diff --git a/modules/git/repo_commit_gogit.go b/modules/git/repo_commit_gogit.go
@@ -41,7 +41,7 @@ func (repo *Repository) RemoveReference(name string) error {
 
 // ConvertToSHA1 returns a Hash object from a potential ID string
 func (repo *Repository) ConvertToSHA1(commitID string) (SHA1, error) {
-	if len(commitID) == 40 {
+	if len(commitID) == SHAFullLength {
 		sha1, err := NewIDFromString(commitID)
 		if err == nil {
 			return sha1, nil
diff --git a/modules/git/repo_commit_nogogit.go b/modules/git/repo_commit_nogogit.go
@@ -137,7 +137,7 @@ func (repo *Repository) getCommitFromBatchReader(rd *bufio.Reader, id SHA1) (*Co
 
 // ConvertToSHA1 returns a Hash object from a potential ID string
 func (repo *Repository) ConvertToSHA1(commitID string) (SHA1, error) {
-	if len(commitID) == 40 && IsValidSHAPattern(commitID) {
+	if len(commitID) == SHAFullLength && IsValidSHAPattern(commitID) {
 		sha1, err := NewIDFromString(commitID)
 		if err == nil {
 			return sha1, nil
diff --git a/modules/git/repo_index.go b/modules/git/repo_index.go
@@ -16,7 +16,7 @@ import (
 
 // ReadTreeToIndex reads a treeish to the index
 func (repo *Repository) ReadTreeToIndex(treeish string, indexFilename ...string) error {
-	if len(treeish) != 40 {
+	if len(treeish) != SHAFullLength {
 		res, _, err := NewCommand(repo.Ctx, "rev-parse", "--verify").AddDynamicArguments(treeish).RunStdString(&RunOpts{Dir: repo.Path})
 		if err != nil {
 			return err
diff --git a/modules/git/repo_tree_gogit.go b/modules/git/repo_tree_gogit.go
@@ -19,7 +19,7 @@ func (repo *Repository) getTree(id SHA1) (*Tree, error) {
 
 // GetTree find the tree object in the repository.
 func (repo *Repository) GetTree(idStr string) (*Tree, error) {
-	if len(idStr) != 40 {
+	if len(idStr) != SHAFullLength {
 		res, _, err := NewCommand(repo.Ctx, "rev-parse", "--verify").AddDynamicArguments(idStr).RunStdString(&RunOpts{Dir: repo.Path})
 		if err != nil {
 			return nil, err
diff --git a/modules/git/repo_tree_nogogit.go b/modules/git/repo_tree_nogogit.go
@@ -66,7 +66,7 @@ func (repo *Repository) getTree(id SHA1) (*Tree, error) {
 
 // GetTree find the tree object in the repository.
 func (repo *Repository) GetTree(idStr string) (*Tree, error) {
-	if len(idStr) != 40 {
+	if len(idStr) != SHAFullLength {
 		res, err := repo.GetRefCommitID(idStr)
 		if err != nil {
 			return nil, err
diff --git a/modules/git/sha1.go b/modules/git/sha1.go
@@ -17,6 +17,9 @@ const EmptySHA = "0000000000000000000000000000000000000000"
 // EmptyTreeSHA is the SHA of an empty tree
 const EmptyTreeSHA = "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
 
+// SHAFullLength is the full length of a git SHA
+const SHAFullLength = 40
+
 // SHAPattern can be used to determine if a string is an valid sha
 var shaPattern = regexp.MustCompile(`^[0-9a-f]{4,40}$`)
 
@@ -50,7 +53,7 @@ func MustIDFromString(s string) SHA1 {
 func NewIDFromString(s string) (SHA1, error) {
 	var id SHA1
 	s = strings.TrimSpace(s)
-	if len(s) != 40 {
+	if len(s) != SHAFullLength {
 		return id, fmt.Errorf("Length must be 40: %s", s)
 	}
 	b, err := hex.DecodeString(s)
diff --git a/modules/setting/repository.go b/modules/setting/repository.go
@@ -48,6 +48,7 @@ var (
 		AllowAdoptionOfUnadoptedRepositories    bool
 		AllowDeleteOfUnadoptedRepositories      bool
 		DisableDownloadSourceArchives           bool
+		AllowForkWithoutMaximumLimit            bool
 
 		// Repository editor settings
 		Editor struct {
@@ -160,6 +161,7 @@ var (
 		DisableMigrations:                       false,
 		DisableStars:                            false,
 		DefaultBranch:                           "main",
+		AllowForkWithoutMaximumLimit:            true,
 
 		// Repository editor settings
 		Editor: struct {
diff --git a/routers/api/v1/repo/fork.go b/routers/api/v1/repo/fork.go
@@ -141,7 +141,7 @@ func CreateFork(ctx *context.APIContext) {
 		Description: repo.Description,
 	})
 	if err != nil {
-		if repo_model.IsErrRepoAlreadyExist(err) {
+		if repo_model.IsErrReachLimitOfRepo(err) || repo_model.IsErrRepoAlreadyExist(err) {
 			ctx.Error(http.StatusConflict, "ForkRepository", err)
 		} else {
 			ctx.Error(http.StatusInternalServerError, "ForkRepository", err)
diff --git a/routers/api/v1/repo/status.go b/routers/api/v1/repo/status.go
@@ -183,6 +183,7 @@ func getCommitStatuses(ctx *context.APIContext, sha string) {
 		ctx.Error(http.StatusBadRequest, "ref/sha not given", nil)
 		return
 	}
+	sha = utils.MustConvertToSHA1(ctx.Context, sha)
 	repo := ctx.Repo.Repository
 
 	listOptions := utils.GetListOptions(ctx)
diff --git a/routers/api/v1/utils/git.go b/routers/api/v1/utils/git.go
@@ -33,6 +33,8 @@ func ResolveRefOrSha(ctx *context.APIContext, ref string) string {
 		}
 	}
 
+	sha = MustConvertToSHA1(ctx.Context, sha)
+
 	if ctx.Repo.GitRepo != nil {
 		err := ctx.Repo.GitRepo.AddLastCommitCache(ctx.Repo.Repository.GetCommitsCountCacheKey(ref, ref != sha), ctx.Repo.Repository.FullName(), sha)
 		if err != nil {
@@ -65,3 +67,30 @@ func searchRefCommitByType(ctx *context.APIContext, refType, filter string) (str
 	}
 	return "", "", nil
 }
+
+// ConvertToSHA1 returns a full-length SHA1 from a potential ID string
+func ConvertToSHA1(ctx *context.Context, commitID string) (git.SHA1, error) {
+	if len(commitID) == git.SHAFullLength && git.IsValidSHAPattern(commitID) {
+		sha1, err := git.NewIDFromString(commitID)
+		if err == nil {
+			return sha1, nil
+		}
+	}
+
+	gitRepo, closer, err := git.RepositoryFromContextOrOpen(ctx, ctx.Repo.Repository.RepoPath())
+	if err != nil {
+		return git.SHA1{}, fmt.Errorf("RepositoryFromContextOrOpen: %w", err)
+	}
+	defer closer.Close()
+
+	return gitRepo.ConvertToSHA1(commitID)
+}
+
+// MustConvertToSHA1 returns a full-length SHA1 string from a potential ID string, or returns origin input if it can't convert to SHA1
+func MustConvertToSHA1(ctx *context.Context, commitID string) string {
+	sha, err := ConvertToSHA1(ctx, commitID)
+	if err != nil {
+		return commitID
+	}
+	return sha.String()
+}
diff --git a/routers/web/repo/commit.go b/routers/web/repo/commit.go
@@ -283,7 +283,7 @@ func Diff(ctx *context.Context) {
 		}
 		return
 	}
-	if len(commitID) != 40 {
+	if len(commitID) != git.SHAFullLength {
 		commitID = commit.ID.String()
 	}
 
diff --git a/routers/web/repo/pull.go b/routers/web/repo/pull.go
@@ -182,6 +182,15 @@ func getForkRepository(ctx *context.Context) *repo_model.Repository {
 func Fork(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("new_fork")
 
+	if ctx.Doer.CanForkRepo() {
+		ctx.Data["CanForkRepo"] = true
+	} else {
+		maxCreationLimit := ctx.Doer.MaxCreationLimit()
+		msg := ctx.TrN(maxCreationLimit, "repo.form.reach_limit_of_creation_1", "repo.form.reach_limit_of_creation_n", maxCreationLimit)
+		ctx.Data["Flash"] = ctx.Flash
+		ctx.Flash.Error(msg)
+	}
+
 	getForkRepository(ctx)
 	if ctx.Written() {
 		return
@@ -254,6 +263,10 @@ func ForkPost(ctx *context.Context) {
 	if err != nil {
 		ctx.Data["Err_RepoName"] = true
 		switch {
+		case repo_model.IsErrReachLimitOfRepo(err):
+			maxCreationLimit := ctxUser.MaxCreationLimit()
+			msg := ctx.TrN(maxCreationLimit, "repo.form.reach_limit_of_creation_1", "repo.form.reach_limit_of_creation_n", maxCreationLimit)
+			ctx.RenderWithErr(msg, tplFork, &form)
 		case repo_model.IsErrRepoAlreadyExist(err):
 			ctx.RenderWithErr(ctx.Tr("repo.settings.new_owner_has_same_repo"), tplFork, &form)
 		case db.IsErrNameReserved(err):
diff --git a/services/pull/check.go b/services/pull/check.go
@@ -199,19 +199,19 @@ func getMergeCommit(ctx context.Context, pr *issues_model.PullRequest) (*git.Com
 		return nil, fmt.Errorf("ReadFile(%s): %w", headFile, err)
 	}
 	commitID := string(commitIDBytes)
-	if len(commitID) < 40 {
+	if len(commitID) < git.SHAFullLength {
 		return nil, fmt.Errorf(`ReadFile(%s): invalid commit-ID "%s"`, headFile, commitID)
 	}
-	cmd := commitID[:40] + ".." + pr.BaseBranch
+	cmd := commitID[:git.SHAFullLength] + ".." + pr.BaseBranch
 
 	// Get the commit from BaseBranch where the pull request got merged
 	mergeCommit, _, err := git.NewCommand(ctx, "rev-list", "--ancestry-path", "--merges", "--reverse").AddDynamicArguments(cmd).
 		RunStdString(&git.RunOpts{Dir: "", Env: []string{"GIT_INDEX_FILE=" + indexTmpPath, "GIT_DIR=" + pr.BaseRepo.RepoPath()}})
 	if err != nil {
 		return nil, fmt.Errorf("git rev-list --ancestry-path --merges --reverse: %w", err)
-	} else if len(mergeCommit) < 40 {
+	} else if len(mergeCommit) < git.SHAFullLength {
 		// PR was maybe fast-forwarded, so just use last commit of PR
-		mergeCommit = commitID[:40]
+		mergeCommit = commitID[:git.SHAFullLength]
 	}
 
 	gitRepo, err := git.OpenRepository(ctx, pr.BaseRepo.RepoPath())
@@ -220,9 +220,9 @@ func getMergeCommit(ctx context.Context, pr *issues_model.PullRequest) (*git.Com
 	}
 	defer gitRepo.Close()
 
-	commit, err := gitRepo.GetCommit(mergeCommit[:40])
+	commit, err := gitRepo.GetCommit(mergeCommit[:git.SHAFullLength])
 	if err != nil {
-		return nil, fmt.Errorf("GetMergeCommit[%v]: %w", mergeCommit[:40], err)
+		return nil, fmt.Errorf("GetMergeCommit[%v]: %w", mergeCommit[:git.SHAFullLength], err)
 	}
 
 	return commit, nil
diff --git a/services/pull/merge.go b/services/pull/merge.go
@@ -839,7 +839,7 @@ func MergedManually(pr *issues_model.PullRequest, doer *user_model.User, baseGit
 			return models.ErrInvalidMergeStyle{ID: pr.BaseRepo.ID, Style: repo_model.MergeStyleManuallyMerged}
 		}
 
-		if len(commitID) < 40 {
+		if len(commitID) < git.SHAFullLength {
 			return fmt.Errorf("Wrong commit ID")
 		}
 
diff --git a/services/pull/temp_repo.go b/services/pull/temp_repo.go
@@ -166,7 +166,7 @@ func createTemporaryRepo(ctx context.Context, pr *issues_model.PullRequest) (str
 	var headBranch string
 	if pr.Flow == issues_model.PullRequestFlowGithub {
 		headBranch = git.BranchPrefix + pr.HeadBranch
-	} else if len(pr.HeadCommitID) == 40 { // for not created pull request
+	} else if len(pr.HeadCommitID) == git.SHAFullLength { // for not created pull request
 		headBranch = pr.HeadCommitID
 	} else {
 		headBranch = pr.GetGitRefName()
diff --git a/services/repository/files/commit.go b/services/repository/files/commit.go
@@ -29,9 +29,12 @@ func CreateCommitStatus(ctx context.Context, repo *repo_model.Repository, creato
 	}
 	defer closer.Close()
 
-	if _, err := gitRepo.GetCommit(sha); err != nil {
+	if commit, err := gitRepo.GetCommit(sha); err != nil {
 		gitRepo.Close()
 		return fmt.Errorf("GetCommit[%s]: %w", sha, err)
+	} else if len(sha) != git.SHAFullLength {
+		// use complete commit sha
+		sha = commit.ID.String()
 	}
 	gitRepo.Close()
 
diff --git a/services/repository/files/tree.go b/services/repository/files/tree.go
@@ -49,7 +49,7 @@ func GetTreeBySHA(ctx context.Context, repo *repo_model.Repository, gitRepo *git
 	copy(treeURL[apiURLLen:], "/git/trees/")
 
 	// 40 is the size of the sha1 hash in hexadecimal format.
-	copyPos := len(treeURL) - 40
+	copyPos := len(treeURL) - git.SHAFullLength
 
 	if perPage <= 0 || perPage > setting.API.DefaultGitTreesPerPage {
 		perPage = setting.API.DefaultGitTreesPerPage
diff --git a/services/repository/fork.go b/services/repository/fork.go
@@ -51,6 +51,13 @@ type ForkRepoOptions struct {
 
 // ForkRepository forks a repository
 func ForkRepository(ctx context.Context, doer, owner *user_model.User, opts ForkRepoOptions) (*repo_model.Repository, error) {
+	// Fork is prohibited, if user has reached maximum limit of repositories
+	if !owner.CanForkRepo() {
+		return nil, repo_model.ErrReachLimitOfRepo{
+			Limit: owner.MaxRepoCreation,
+		}
+	}
+
 	forkedRepo, err := repo_model.GetUserFork(ctx, opts.BaseRepo.ID, owner.ID)
 	if err != nil {
 		return nil, err
diff --git a/services/repository/fork_test.go b/services/repository/fork_test.go
diff --git a/templates/repo/pulls/fork.tmpl b/templates/repo/pulls/fork.tmpl
diff --git a/tests/integration/repo_commits_test.go b/tests/integration/repo_commits_test.go

Original file line number	Diff line number	Diff line change
`@@ -387,7 +387,7 @@ func RepoRefForAPI(next http.Handler) http.Handler {`
`387`	`387`	`return`
`388`	`388`	`}`
`389`	`389`	`ctx.Repo.CommitID = ctx.Repo.Commit.ID.String()`
`390`		`- } else if len(refName) == 40 {`
	`390`	`+ } else if len(refName) == git.SHAFullLength {`
`391`	`391`	`ctx.Repo.CommitID = refName`
`392`	`392`	`ctx.Repo.Commit, err = ctx.Repo.GitRepo.GetCommit(refName)`
`393`	`393`	`if err != nil {`
Original file line number	Diff line number	Diff line change
`@@ -817,7 +817,7 @@ func getRefName(ctx *Context, pathType RepoRefType) string {`
`817`	`817`	`}`
`818`	`818`	`// For legacy and API support only full commit sha`
`819`	`819`	`parts := strings.Split(path, "/")`
`820`		`- if len(parts) > 0 && len(parts[0]) == 40 {`
	`820`	`+ if len(parts) > 0 && len(parts[0]) == git.SHAFullLength {`
`821`	`821`	`ctx.Repo.TreePath = strings.Join(parts[1:], "/")`
`822`	`822`	`return parts[0]`
`823`	`823`	`}`
`@@ -853,7 +853,7 @@ func getRefName(ctx *Context, pathType RepoRefType) string {`
`853`	`853`	`return getRefNameFromPath(ctx, path, ctx.Repo.GitRepo.IsTagExist)`
`854`	`854`	`case RepoRefCommit:`
`855`	`855`	`parts := strings.Split(path, "/")`
`856`		`- if len(parts) > 0 && len(parts[0]) >= 7 && len(parts[0]) <= 40 {`
	`856`	`+ if len(parts) > 0 && len(parts[0]) >= 7 && len(parts[0]) <= git.SHAFullLength {`
`857`	`857`	`ctx.Repo.TreePath = strings.Join(parts[1:], "/")`
`858`	`858`	`return parts[0]`
`859`	`859`	`}`
`@@ -962,7 +962,7 @@ func RepoRefByType(refType RepoRefType, ignoreNotExistErr ...bool) func(*Context`
`962`	`962`	`return`
`963`	`963`	`}`
`964`	`964`	`ctx.Repo.CommitID = ctx.Repo.Commit.ID.String()`
`965`		`- } else if len(refName) >= 7 && len(refName) <= 40 {`
	`965`	`+ } else if len(refName) >= 7 && len(refName) <= git.SHAFullLength {`
`966`	`966`	`ctx.Repo.IsViewCommit = true`
`967`	`967`	`ctx.Repo.CommitID = refName`
`968`	`968`
`@@ -972,7 +972,7 @@ func RepoRefByType(refType RepoRefType, ignoreNotExistErr ...bool) func(*Context`
`972`	`972`	`return`
`973`	`973`	`}`
`974`	`974`	`// If short commit ID add canonical link header`
`975`		`- if len(refName) < 40 {`
	`975`	`+ if len(refName) < git.SHAFullLength {`
`976`	`976`	`ctx.RespHeader().Set("Link", fmt.Sprintf("<%s>; rel=\"canonical\"",`
`977`	`977`	`util.URLJoin(setting.AppURL, strings.Replace(ctx.Req.URL.RequestURI(), util.PathEscapeSegments(refName), url.PathEscape(ctx.Repo.Commit.ID.String()), 1))))`
`978`	`978`	`}`