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forgejo/modules/git/submodule.go
zeripath 71e73db2ff
Manage port in submodule refurl (#11305)
* Manage port in submodule refurl

Fix #11304

Signed-off-by: Andrew Thornton <art27@cantab.net>

* fix lint

Signed-off-by: Andrew Thornton <art27@cantab.net>

* URLJoin is causes a cyclic dependency and possibly isn't what what we want anyway

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Protect against leading .. in scp syntax

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: Lauris BH <lauris@nix.lv>
2020-05-07 11:25:52 -03:00

124 lines
3 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// Copyright 2015 The Gogs 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 git
import (
"fmt"
"net"
"net/url"
"path"
"regexp"
"strings"
)
var scpSyntax = regexp.MustCompile(`^([a-zA-Z0-9_]+@)?([a-zA-Z0-9._-]+):(.*)$`)
// SubModule submodule is a reference on git repository
type SubModule struct {
Name string
URL string
}
// SubModuleFile represents a file with submodule type.
type SubModuleFile struct {
*Commit
refURL string
refID string
}
// NewSubModuleFile create a new submodule file
func NewSubModuleFile(c *Commit, refURL, refID string) *SubModuleFile {
return &SubModuleFile{
Commit: c,
refURL: refURL,
refID: refID,
}
}
func getRefURL(refURL, urlPrefix, repoFullName string) string {
if refURL == "" {
return ""
}
refURI := strings.TrimSuffix(refURL, ".git")
prefixURL, _ := url.Parse(urlPrefix)
urlPrefixHostname, _, err := net.SplitHostPort(prefixURL.Host)
if err != nil {
urlPrefixHostname = prefixURL.Host
}
if strings.HasSuffix(urlPrefix, "/") {
urlPrefix = urlPrefix[:len(urlPrefix)-1]
}
// FIXME: Need to consider branch - which will require changes in modules/git/commit.go:GetSubModules
// Relative url prefix check (according to git submodule documentation)
if strings.HasPrefix(refURI, "./") || strings.HasPrefix(refURI, "../") {
return urlPrefix + path.Clean(path.Join("/", repoFullName, refURI))
}
if !strings.Contains(refURI, "://") {
// scp style syntax which contains *no* port number after the : (and is not parsed by net/url)
// ex: git@try.gitea.io:go-gitea/gitea
match := scpSyntax.FindAllStringSubmatch(refURI, -1)
if len(match) > 0 {
m := match[0]
refHostname := m[2]
pth := m[3]
if !strings.HasPrefix(pth, "/") {
pth = "/" + pth
}
if urlPrefixHostname == refHostname {
return urlPrefix + path.Clean(path.Join("/", pth))
}
return "http://" + refHostname + pth
}
}
ref, err := url.Parse(refURI)
if err != nil {
return ""
}
refHostname, _, err := net.SplitHostPort(ref.Host)
if err != nil {
refHostname = ref.Host
}
supportedSchemes := []string{"http", "https", "git", "ssh", "git+ssh"}
for _, scheme := range supportedSchemes {
if ref.Scheme == scheme {
if urlPrefixHostname == refHostname {
return urlPrefix + path.Clean(path.Join("/", ref.Path))
} else if ref.Scheme == "http" || ref.Scheme == "https" {
if len(ref.User.Username()) > 0 {
return ref.Scheme + "://" + fmt.Sprintf("%v", ref.User) + "@" + ref.Host + ref.Path
}
return ref.Scheme + "://" + ref.Host + ref.Path
} else {
return "http://" + refHostname + ref.Path
}
}
}
return ""
}
// RefURL guesses and returns reference URL.
func (sf *SubModuleFile) RefURL(urlPrefix string, repoFullName string) string {
return getRefURL(sf.refURL, urlPrefix, repoFullName)
}
// RefID returns reference ID.
func (sf *SubModuleFile) RefID() string {
return sf.refID
}