1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
// Copyright 2014 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 cmd
import (
//"container/list"
"fmt"
"os"
"os/exec"
"path"
"strconv"
"strings"
"github.com/codegangsta/cli"
qlog "github.com/qiniu/log"
//"github.com/gogits/git"
"github.com/gogits/gogs/models"
"github.com/gogits/gogs/modules/base"
)
var (
COMMANDS_READONLY = map[string]int{
"git-upload-pack": models.AU_WRITABLE,
"git upload-pack": models.AU_WRITABLE,
"git-upload-archive": models.AU_WRITABLE,
}
COMMANDS_WRITE = map[string]int{
"git-receive-pack": models.AU_READABLE,
"git receive-pack": models.AU_READABLE,
}
)
var CmdServ = cli.Command{
Name: "serv",
Usage: "This command should only be called by SSH shell",
Description: `Serv provide access auth for repositories`,
Action: runServ,
Flags: []cli.Flag{},
}
func newLogger(execDir string) {
logPath := execDir + "/log/serv.log"
os.MkdirAll(path.Dir(logPath), os.ModePerm)
f, err := os.OpenFile(logPath, os.O_WRONLY|os.O_APPEND|os.O_CREATE, os.ModePerm)
if err != nil {
qlog.Fatal(err)
}
qlog.SetOutput(f)
//qlog.SetOutputLevel(qlog.Ldebug)
qlog.Info("Start logging serv...")
}
func parseCmd(cmd string) (string, string) {
ss := strings.SplitN(cmd, " ", 2)
if len(ss) != 2 {
return "", ""
}
verb, args := ss[0], ss[1]
if verb == "git" {
ss = strings.SplitN(args, " ", 2)
args = ss[1]
verb = fmt.Sprintf("%s %s", verb, ss[0])
}
return verb, strings.Replace(args, "'/", "'", 1)
}
func In(b string, sl map[string]int) bool {
_, e := sl[b]
return e
}
func runServ(k *cli.Context) {
execDir, _ := base.ExecDir()
newLogger(execDir)
base.NewConfigContext()
models.LoadModelsConfig()
if models.UseSQLite3 {
os.Chdir(execDir)
}
models.SetEngine()
keys := strings.Split(os.Args[2], "-")
if len(keys) != 2 {
println("auth file format error")
qlog.Fatal("auth file format error")
}
keyId, err := strconv.ParseInt(keys[1], 10, 64)
if err != nil {
println("auth file format error")
qlog.Fatal("auth file format error", err)
}
user, err := models.GetUserByKeyId(keyId)
if err != nil {
println("You have no right to access")
qlog.Fatalf("SSH visit error: %v", err)
}
cmd := os.Getenv("SSH_ORIGINAL_COMMAND")
if cmd == "" {
println("Hi", user.Name, "! You've successfully authenticated, but Gogs does not provide shell access.")
return
}
verb, args := parseCmd(cmd)
repoPath := strings.Trim(args, "'")
rr := strings.SplitN(repoPath, "/", 2)
if len(rr) != 2 {
println("Unavailable repository", args)
qlog.Fatalf("Unavailable repository %v", args)
}
repoUserName := rr[0]
repoName := strings.TrimSuffix(rr[1], ".git")
isWrite := In(verb, COMMANDS_WRITE)
isRead := In(verb, COMMANDS_READONLY)
repoUser, err := models.GetUserByName(repoUserName)
if err != nil {
println("You have no right to access")
qlog.Fatalf("Get user failed: %v", err)
}
// access check
switch {
case isWrite:
has, err := models.HasAccess(user.LowerName, path.Join(repoUserName, repoName), models.AU_WRITABLE)
if err != nil {
println("Internal error:", err)
qlog.Fatal(err)
} else if !has {
println("You have no right to write this repository")
qlog.Fatalf("User %s has no right to write repository %s", user.Name, repoPath)
}
case isRead:
repo, err := models.GetRepositoryByName(repoUser.Id, repoName)
if err != nil {
println("Get repository error:", err)
qlog.Fatal("Get repository error: " + err.Error())
}
if !repo.IsPrivate {
break
}
has, err := models.HasAccess(user.Name, path.Join(repoUserName, repoName), models.AU_READABLE)
if err != nil {
println("Internal error")
qlog.Fatal(err)
}
if !has {
has, err = models.HasAccess(user.Name, path.Join(repoUserName, repoName), models.AU_WRITABLE)
if err != nil {
println("Internal error")
qlog.Fatal(err)
}
}
if !has {
println("You have no right to access this repository")
qlog.Fatal("You have no right to access this repository")
}
default:
println("Unknown command")
qlog.Fatal("Unknown command")
}
models.SetRepoEnvs(user.Id, user.Name, repoName, repoUserName)
gitcmd := exec.Command(verb, repoPath)
gitcmd.Dir = base.RepoRootPath
gitcmd.Stdout = os.Stdout
gitcmd.Stdin = os.Stdin
gitcmd.Stderr = os.Stderr
if err = gitcmd.Run(); err != nil {
println("execute command error:", err.Error())
qlog.Fatal("execute command error: " + err.Error())
}
//refName := os.Getenv("refName")
//oldCommitId := os.Getenv("oldCommitId")
//newCommitId := os.Getenv("newCommitId")
//qlog.Error("get envs:", refName, oldCommitId, newCommitId)
// update
//models.Update(refName, oldCommitId, newCommitId, repoUserName, repoName, user.Id)
}
|
