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forgejo/modules/lfs/endpoint.go
Yarden Shoham 43d1183f67
escape filename when assemble URL (#22850) (#22871)
Backport #22850

Fixes: #22843 

### Cause:

affdd40296/services/repository/files/content.go (L161)

Previously, we did not escape the **"%"** that might be in "treePath"
when call "url.parse()".


![image](https://user-images.githubusercontent.com/33891828/218066318-5a909e50-2a17-46e6-b32f-684b2aa4b91f.png)

This function will check whether "%" is the beginning of an escape
character. Obviously, the "%" in the example (hello%mother.txt) is not
that. So, the function will return a error.

### Solution:
We can escape "treePath" by call "url.PathEscape()" function firstly.

### Screenshot:

![image](https://user-images.githubusercontent.com/33891828/218069781-1a030f8b-18d0-4804-b0f8-73997849ef43.png)

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: sillyguodong <33891828+sillyguodong@users.noreply.github.com>
Co-authored-by: Andrew Thornton <art27@cantab.net>
2023-02-12 09:39:52 +00:00

104 lines
1.9 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package lfs
import (
"net/url"
"os"
"path"
"path/filepath"
"strings"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/util"
)
// DetermineEndpoint determines an endpoint from the clone url or uses the specified LFS url.
func DetermineEndpoint(cloneurl, lfsurl string) *url.URL {
if len(lfsurl) > 0 {
return endpointFromURL(lfsurl)
}
return endpointFromCloneURL(cloneurl)
}
func endpointFromCloneURL(rawurl string) *url.URL {
ep := endpointFromURL(rawurl)
if ep == nil {
return ep
}
ep.Path = strings.TrimSuffix(ep.Path, "/")
if ep.Scheme == "file" {
return ep
}
if path.Ext(ep.Path) == ".git" {
ep.Path += "/info/lfs"
} else {
ep.Path += ".git/info/lfs"
}
return ep
}
func endpointFromURL(rawurl string) *url.URL {
if strings.HasPrefix(rawurl, "/") {
return endpointFromLocalPath(rawurl)
}
u, err := url.Parse(rawurl)
if err != nil {
log.Error("lfs.endpointFromUrl: %v", err)
return nil
}
switch u.Scheme {
case "http", "https":
return u
case "git":
u.Scheme = "https"
return u
case "file":
return u
default:
if _, err := os.Stat(rawurl); err == nil {
return endpointFromLocalPath(rawurl)
}
log.Error("lfs.endpointFromUrl: unknown url")
return nil
}
}
func endpointFromLocalPath(path string) *url.URL {
var slash string
if abs, err := filepath.Abs(path); err == nil {
if !strings.HasPrefix(abs, "/") {
slash = "/"
}
path = abs
}
var gitpath string
if filepath.Base(path) == ".git" {
gitpath = path
path = filepath.Dir(path)
} else {
gitpath = filepath.Join(path, ".git")
}
if _, err := os.Stat(gitpath); err == nil {
path = gitpath
} else if _, err := os.Stat(path); err != nil {
return nil
}
path = "file://" + slash + util.PathEscapeSegments(filepath.ToSlash(path))
u, _ := url.Parse(path)
return u
}