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Code Releases Activity

Multiple Escaping Improvements (#17551)

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There are multiple places where Gitea does not properly escape URLs that it is building and there are multiple places where it builds urls when there is already a simpler function available to use this.
    
This is an extensive PR attempting to fix these issues.

1. The first commit in this PR looks through all href, src and links in the Gitea codebase and has attempted to catch all the places where there is potentially incomplete escaping.
2. Whilst doing this we will prefer to use functions that create URLs over recreating them by hand.
3. All uses of strings should be directly escaped - even if they are not currently expected to contain escaping characters. The main benefit to doing this will be that we can consider relaxing the constraints on user names and reponames in future. 
4. The next commit looks at escaping in the wiki and re-considers the urls that are used there. Using the improved escaping here wiki files containing '/'. (This implementation will currently still place all of the wiki files the root directory of the repo but this would not be difficult to change.)
5. The title generation in feeds is now properly escaped.
6. EscapePound is no longer needed - urls should be PathEscaped / QueryEscaped as necessary but then re-escaped with Escape when creating html with locales Signed-off-by: Andrew Thornton <art27@cantab.net>

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath
2021-11-16 18:18:25 +00:00
committed by GitHub
parent 7e1ae38097
commit bbffcc3aec
153 changed files with 891 additions and 712 deletions
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65
routers/web/repo/wiki.go
View File

@ -180,7 +180,7 @@ func renderViewPage(ctx *context.Context) (*git.Repository, *git.TreeEntry) {
ctx.Data["Pages"] = pages
// get requested pagename
pageName := wiki_service.NormalizeWikiName(ctx.Params(":page"))
pageName := wiki_service.NormalizeWikiName(ctx.Params("*"))
if len(pageName) == 0 {
pageName = "Home"
}
@ -193,7 +193,7 @@ func renderViewPage(ctx *context.Context) (*git.Repository, *git.TreeEntry) {
//lookup filename in wiki - get filecontent, gitTree entry , real filename
data, entry, pageFilename, noEntry := wikiContentsByName(ctx, commit, pageName)
if noEntry {
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/_pages")
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/?action=_pages")
}
if entry == nil || ctx.Written() {
if wikiRepo != nil {
@ -276,7 +276,7 @@ func renderRevisionPage(ctx *context.Context) (*git.Repository, *git.TreeEntry)
}
// get requested pagename
pageName := wiki_service.NormalizeWikiName(ctx.Params(":page"))
pageName := wiki_service.NormalizeWikiName(ctx.Params("*"))
if len(pageName) == 0 {
pageName = "Home"
}
@ -291,7 +291,7 @@ func renderRevisionPage(ctx *context.Context) (*git.Repository, *git.TreeEntry)
//lookup filename in wiki - get filecontent, gitTree entry , real filename
data, entry, pageFilename, noEntry := wikiContentsByName(ctx, commit, pageName)
if noEntry {
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/_pages")
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/?action=_pages")
}
if entry == nil || ctx.Written() {
if wikiRepo != nil {
@ -352,7 +352,7 @@ func renderEditPage(ctx *context.Context) {
}()
// get requested pagename
pageName := wiki_service.NormalizeWikiName(ctx.Params(":page"))
pageName := wiki_service.NormalizeWikiName(ctx.Params("*"))
if len(pageName) == 0 {
pageName = "Home"
}
@ -365,7 +365,7 @@ func renderEditPage(ctx *context.Context) {
//lookup filename in wiki - get filecontent, gitTree entry , real filename
data, entry, _, noEntry := wikiContentsByName(ctx, commit, pageName)
if noEntry {
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/_pages")
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/?action=_pages")
}
if entry == nil || ctx.Written() {
return
@ -378,6 +378,32 @@ func renderEditPage(ctx *context.Context) {
ctx.Data["footerContent"] = ""
}
// WikiPost renders post of wiki page
func WikiPost(ctx *context.Context) {
switch ctx.FormString("action") {
case "_new":
if !ctx.Repo.CanWrite(unit.TypeWiki) {
ctx.NotFound(ctx.Req.URL.RequestURI(), nil)
return
}
NewWikiPost(ctx)
return
case "_delete":
if !ctx.Repo.CanWrite(unit.TypeWiki) {
ctx.NotFound(ctx.Req.URL.RequestURI(), nil)
return
}
DeleteWikiPagePost(ctx)
return
}
if !ctx.Repo.CanWrite(unit.TypeWiki) {
ctx.NotFound(ctx.Req.URL.RequestURI(), nil)
return
}
EditWikiPost(ctx)
}
// Wiki renders single wiki page
func Wiki(ctx *context.Context) {
ctx.Data["PageIsWiki"] = true
@ -389,6 +415,29 @@ func Wiki(ctx *context.Context) {
return
}
switch ctx.FormString("action") {
case "_pages":
WikiPages(ctx)
return
case "_revision":
WikiRevision(ctx)
return
case "_edit":
if !ctx.Repo.CanWrite(unit.TypeWiki) {
ctx.NotFound(ctx.Req.URL.RequestURI(), nil)
return
}
EditWiki(ctx)
return
case "_new":
if !ctx.Repo.CanWrite(unit.TypeWiki) {
ctx.NotFound(ctx.Req.URL.RequestURI(), nil)
return
}
NewWiki(ctx)
return
}
wikiRepo, entry := renderViewPage(ctx)
defer func() {
if wikiRepo != nil {
@ -652,7 +701,7 @@ func EditWikiPost(ctx *context.Context) {
return
}
oldWikiName := wiki_service.NormalizeWikiName(ctx.Params(":page"))
oldWikiName := wiki_service.NormalizeWikiName(ctx.Params("*"))
newWikiName := wiki_service.NormalizeWikiName(form.Title)
if len(form.Message) == 0 {
@ -669,7 +718,7 @@ func EditWikiPost(ctx *context.Context) {
// DeleteWikiPagePost delete wiki page
func DeleteWikiPagePost(ctx *context.Context) {
wikiName := wiki_service.NormalizeWikiName(ctx.Params(":page"))
wikiName := wiki_service.NormalizeWikiName(ctx.Params("*"))
if len(wikiName) == 0 {
wikiName = "Home"
}