forgejo/modules/lfs/endpoint.go
Philip Peterson 03508b33a8
[FEAT] Allow pushmirror to use publickey authentication
- Continuation of https://github.com/go-gitea/gitea/pull/18835 (by
@Gusted, so it's fine to change copyright holder to Forgejo).
- Add the option to use SSH for push mirrors, this would allow for the
deploy keys feature to be used and not require tokens to be used which
cannot be limited to a specific repository. The private key is stored
encrypted (via the `keying` module) on the database and NEVER given to
the user, to avoid accidental exposure and misuse.
- CAVEAT: This does require the `ssh` binary to be present, which may
not be available in containerized environments, this could be solved by
adding a SSH client into forgejo itself and use the forgejo binary as
SSH command, but should be done in another PR.
- CAVEAT: Mirroring of LFS content is not supported, this would require
the previous stated problem to be solved due to LFS authentication (an
attempt was made at forgejo/forgejo#2544).
- Integration test added.
- Resolves #4416
2024-08-22 17:05:07 +02:00

108 lines
1.9 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
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 "ssh":
u.Scheme = "https"
u.User = nil
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
}