forked from openshift/origin
-
Notifications
You must be signed in to change notification settings - Fork 0
/
routing.go
117 lines (101 loc) · 3.02 KB
/
routing.go
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
package githttp
import (
"net/http"
"os"
"regexp"
"strings"
)
type Service struct {
Method string
Handler func(HandlerReq) error
Rpc string
}
type HandlerReq struct {
w http.ResponseWriter
r *http.Request
Rpc string
Dir string
File string
}
// Routing regexes
var (
_serviceRpcUpload = regexp.MustCompile("(.*?)/git-upload-pack$")
_serviceRpcReceive = regexp.MustCompile("(.*?)/git-receive-pack$")
_getInfoRefs = regexp.MustCompile("(.*?)/info/refs$")
_getHead = regexp.MustCompile("(.*?)/HEAD$")
_getAlternates = regexp.MustCompile("(.*?)/objects/info/alternates$")
_getHttpAlternates = regexp.MustCompile("(.*?)/objects/info/http-alternates$")
_getInfoPacks = regexp.MustCompile("(.*?)/objects/info/packs$")
_getInfoFile = regexp.MustCompile("(.*?)/objects/info/[^/]*$")
_getLooseObject = regexp.MustCompile("(.*?)/objects/[0-9a-f]{2}/[0-9a-f]{38}$")
_getPackFile = regexp.MustCompile("(.*?)/objects/pack/pack-[0-9a-f]{40}\\.pack$")
_getIdxFile = regexp.MustCompile("(.*?)/objects/pack/pack-[0-9a-f]{40}\\.idx$")
)
func (g *GitHttp) services() map[*regexp.Regexp]Service {
return map[*regexp.Regexp]Service{
_serviceRpcUpload: Service{"POST", g.serviceRpc, "upload-pack"},
_serviceRpcReceive: Service{"POST", g.serviceRpc, "receive-pack"},
_getInfoRefs: Service{"GET", g.getInfoRefs, ""},
_getHead: Service{"GET", g.getTextFile, ""},
_getAlternates: Service{"GET", g.getTextFile, ""},
_getHttpAlternates: Service{"GET", g.getTextFile, ""},
_getInfoPacks: Service{"GET", g.getInfoPacks, ""},
_getInfoFile: Service{"GET", g.getTextFile, ""},
_getLooseObject: Service{"GET", g.getLooseObject, ""},
_getPackFile: Service{"GET", g.getPackFile, ""},
_getIdxFile: Service{"GET", g.getIdxFile, ""},
}
}
// getService return's the service corresponding to the
// current http.Request's URL
// as well as the name of the repo
func (g *GitHttp) getService(path string) (string, *Service) {
for re, service := range g.services() {
if m := re.FindStringSubmatch(path); m != nil {
return m[1], &service
}
}
// No match
return "", nil
}
// Request handling function
func (g *GitHttp) requestHandler(w http.ResponseWriter, r *http.Request) {
// Get service for URL
repo, service := g.getService(r.URL.Path)
// No url match
if service == nil {
renderNotFound(w)
return
}
// Bad method
if service.Method != r.Method {
renderMethodNotAllowed(w, r)
return
}
// Rpc type
rpc := service.Rpc
// Get specific file
file := strings.Replace(r.URL.Path, repo+"/", "", 1)
// Resolve directory
dir, err := g.getGitDir(repo)
// Repo not found on disk
if err != nil {
renderNotFound(w)
return
}
// Build request info for handler
hr := HandlerReq{w, r, rpc, dir, file}
// Call handler
if err := service.Handler(hr); err != nil {
if os.IsNotExist(err) {
renderNotFound(w)
return
}
switch err.(type) {
case *ErrorNoAccess:
renderNoAccess(w)
return
}
http.Error(w, err.Error(), 500)
}
}