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Fix raw wiki links (#31825)

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Fix #31395

This regression is introduced by #30273. To find out how GitHub handles
this case, I did [some
tests](https://github.com/go-gitea/gitea/issues/31395#issuecomment-2278929115).

I use redirect in this PR instead of checking if the corresponding `.md`
file exists when rendering the link because GitHub also uses redirect.
With this PR, there is no need to resolve the raw wiki link when
rendering a wiki page. If a wiki link points to a raw file, access will
be redirected to the raw link.
This commit is contained in:
Zettat123
2024-08-16 20:40:51 +08:00
committed by GitHub
parent e4f850bf63
commit 2010fbe060
5 changed files with 84 additions and 32 deletions
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64
routers/web/repo/wiki.go
View File

@@ -138,18 +138,41 @@ func wikiContentsByEntry(ctx *context.Context, entry *git.TreeEntry) []byte {
return content
}
// wikiContentsByName returns the contents of a wiki page, along with a boolean
// indicating whether the page exists. Writes to ctx if an error occurs.
func wikiContentsByName(ctx *context.Context, commit *git.Commit, wikiName wiki_service.WebPath) ([]byte, *git.TreeEntry, string, bool) {
// wikiEntryByName returns the entry of a wiki page, along with a boolean
// indicating whether the entry exists. Writes to ctx if an error occurs.
// The last return value indicates whether the file should be returned as a raw file
func wikiEntryByName(ctx *context.Context, commit *git.Commit, wikiName wiki_service.WebPath) (*git.TreeEntry, string, bool, bool) {
isRaw := false
gitFilename := wiki_service.WebPathToGitPath(wikiName)
entry, err := findEntryForFile(commit, gitFilename)
if err != nil && !git.IsErrNotExist(err) {
ctx.ServerError("findEntryForFile", err)
return nil, nil, "", false
} else if entry == nil {
return nil, "", false, false
}
if entry == nil {
// check if the file without ".md" suffix exists
gitFilename := strings.TrimSuffix(gitFilename, ".md")
entry, err = findEntryForFile(commit, gitFilename)
if err != nil && !git.IsErrNotExist(err) {
ctx.ServerError("findEntryForFile", err)
return nil, "", false, false
}
isRaw = true
}
if entry == nil {
return nil, "", true, false
}
return entry, gitFilename, false, isRaw
}
// wikiContentsByName returns the contents of a wiki page, along with a boolean
// indicating whether the page exists. Writes to ctx if an error occurs.
func wikiContentsByName(ctx *context.Context, commit *git.Commit, wikiName wiki_service.WebPath) ([]byte, *git.TreeEntry, string, bool) {
entry, gitFilename, noEntry, _ := wikiEntryByName(ctx, commit, wikiName)
if entry == nil {
return nil, nil, "", true
}
return wikiContentsByEntry(ctx, entry), entry, gitFilename, false
return wikiContentsByEntry(ctx, entry), entry, gitFilename, noEntry
}
func renderViewPage(ctx *context.Context) (*git.Repository, *git.TreeEntry) {
@@ -215,11 +238,14 @@ func renderViewPage(ctx *context.Context) (*git.Repository, *git.TreeEntry) {
isSideBar := pageName == "_Sidebar"
isFooter := pageName == "_Footer"
// lookup filename in wiki - get filecontent, gitTree entry , real filename
data, entry, pageFilename, noEntry := wikiContentsByName(ctx, commit, pageName)
// lookup filename in wiki - get gitTree entry , real filename
entry, pageFilename, noEntry, isRaw := wikiEntryByName(ctx, commit, pageName)
if noEntry {
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/?action=_pages")
}
if isRaw {
ctx.Redirect(util.URLJoin(ctx.Repo.RepoLink, "wiki/raw", string(pageName)))
}
if entry == nil || ctx.Written() {
if wikiRepo != nil {
wikiRepo.Close()
@@ -227,6 +253,15 @@ func renderViewPage(ctx *context.Context) (*git.Repository, *git.TreeEntry) {
return nil, nil
}
// get filecontent
data := wikiContentsByEntry(ctx, entry)
if ctx.Written() {
if wikiRepo != nil {
wikiRepo.Close()
}
return nil, nil
}
var sidebarContent []byte
if !isSideBar {
sidebarContent, _, _, _ = wikiContentsByName(ctx, commit, "_Sidebar")
@@ -442,15 +477,24 @@ func renderEditPage(ctx *context.Context) {
ctx.Data["Title"] = displayName
ctx.Data["title"] = displayName
// lookup filename in wiki - get filecontent, gitTree entry , real filename
data, entry, _, noEntry := wikiContentsByName(ctx, commit, pageName)
// lookup filename in wiki - gitTree entry , real filename
entry, _, noEntry, isRaw := wikiEntryByName(ctx, commit, pageName)
if noEntry {
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/?action=_pages")
}
if isRaw {
ctx.Error(http.StatusForbidden, "Editing of raw wiki files is not allowed")
}
if entry == nil || ctx.Written() {
return
}
// get filecontent
data := wikiContentsByEntry(ctx, entry)
if ctx.Written() {
return
}
ctx.Data["content"] = string(data)
ctx.Data["sidebarPresent"] = false
ctx.Data["sidebarContent"] = ""