oppi.li
1// Copyright 2019 The Gitea Authors. All rights reserved.
2// Copyright 2015 The Gogs Authors. All rights reserved.
3// SPDX-License-Identifier: MIT
4
5package git
6
7import (
8 "fmt"
9 "net"
10 "net/url"
11 "path"
12 "regexp"
13 "strings"
14)
15
16var scpSyntax = regexp.MustCompile(`^([a-zA-Z0-9_]+@)?([a-zA-Z0-9._-]+):(.*)$`)
17
18// SubModule submodule is a reference on git repository
19type SubModule struct {
20 Name string
21 URL string
22}
23
24// SubModuleFile represents a file with submodule type.
25type SubModuleFile struct {
26 *Commit
27
28 refURL string
29 refID string
30}
31
32// NewSubModuleFile create a new submodule file
33func NewSubModuleFile(c *Commit, refURL, refID string) *SubModuleFile {
34 return &SubModuleFile{
35 Commit: c,
36 refURL: refURL,
37 refID: refID,
38 }
39}
40
41func getRefURL(refURL, urlPrefix, repoFullName, sshDomain string) string {
42 if refURL == "" {
43 return ""
44 }
45
46 refURI := strings.TrimSuffix(refURL, ".git")
47
48 prefixURL, _ := url.Parse(urlPrefix)
49 urlPrefixHostname, _, err := net.SplitHostPort(prefixURL.Host)
50 if err != nil {
51 urlPrefixHostname = prefixURL.Host
52 }
53
54 urlPrefix = strings.TrimSuffix(urlPrefix, "/")
55
56 // FIXME: Need to consider branch - which will require changes in modules/git/commit.go:GetSubModules
57 // Relative url prefix check (according to git submodule documentation)
58 if strings.HasPrefix(refURI, "./") || strings.HasPrefix(refURI, "../") {
59 return urlPrefix + path.Clean(path.Join("/", repoFullName, refURI))
60 }
61
62 if !strings.Contains(refURI, "://") {
63 // scp style syntax which contains *no* port number after the : (and is not parsed by net/url)
64 // ex: git@try.gitea.io:go-gitea/gitea
65 match := scpSyntax.FindAllStringSubmatch(refURI, -1)
66 if len(match) > 0 {
67 m := match[0]
68 refHostname := m[2]
69 pth := m[3]
70
71 if !strings.HasPrefix(pth, "/") {
72 pth = "/" + pth
73 }
74
75 if urlPrefixHostname == refHostname || refHostname == sshDomain {
76 return urlPrefix + path.Clean(path.Join("/", pth))
77 }
78 return "http://" + refHostname + pth
79 }
80 }
81
82 ref, err := url.Parse(refURI)
83 if err != nil {
84 return ""
85 }
86
87 refHostname, _, err := net.SplitHostPort(ref.Host)
88 if err != nil {
89 refHostname = ref.Host
90 }
91
92 supportedSchemes := []string{"http", "https", "git", "ssh", "git+ssh"}
93
94 for _, scheme := range supportedSchemes {
95 if ref.Scheme == scheme {
96 if ref.Scheme == "http" || ref.Scheme == "https" {
97 if len(ref.User.Username()) > 0 {
98 return ref.Scheme + "://" + fmt.Sprintf("%v", ref.User) + "@" + ref.Host + ref.Path
99 }
100 return ref.Scheme + "://" + ref.Host + ref.Path
101 } else if urlPrefixHostname == refHostname || refHostname == sshDomain {
102 return urlPrefix + path.Clean(path.Join("/", ref.Path))
103 }
104 return "http://" + refHostname + ref.Path
105 }
106 }
107
108 return ""
109}
110
111// RefURL guesses and returns reference URL.
112func (sf *SubModuleFile) RefURL(urlPrefix, repoFullName, sshDomain string) string {
113 return getRefURL(sf.refURL, urlPrefix, repoFullName, sshDomain)
114}
115
116// RefID returns reference ID.
117func (sf *SubModuleFile) RefID() string {
118 return sf.refID
119}