mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-29 10:54:02 -05:00
27 lines
1.1 KiB
Go
27 lines
1.1 KiB
Go
|
// Copyright 2023 The Gitea Authors. All rights reserved.
|
||
|
|
// SPDX-License-Identifier: MIT
|
||
|
|
|
||
|
|
package common
|
||
|
|
|
||
|
|
import (
|
||
|
|
"net/http"
|
||
|
|
|
||
|
|
"code.gitea.io/gitea/modules/httplib"
|
||
|
|
)
|
||
|
|
|
||
|
|
// FetchRedirectDelegate helps the "fetch" requests to redirect to the correct location
|
||
|
|
func FetchRedirectDelegate(resp http.ResponseWriter, req *http.Request) {
|
||
|
|
// When use "fetch" to post requests and the response is a redirect, browser's "location.href = uri" has limitations.
|
||
|
|
// 1. change "location" from old "/foo" to new "/foo#hash", the browser will not reload the page.
|
||
|
|
// 2. when use "window.reload()", the hash is not respected, the newly loaded page won't scroll to the hash target.
|
||
|
|
// The typical page is "issue comment" page. The backend responds "/owner/repo/issues/1#comment-2",
|
||
|
|
// then frontend needs this delegate to redirect to the new location with hash correctly.
|
||
|
|
redirect := req.PostFormValue("redirect")
|
||
|
|
if httplib.IsRiskyRedirectURL(redirect) {
|
||
|
|
resp.WriteHeader(http.StatusBadRequest)
|
||
|
|
return
|
||
|
|
}
|
||
|
|
resp.Header().Add("Location", redirect)
|
||
|
|
resp.WriteHeader(http.StatusSeeOther)
|
||
|
|
}
|