internal/httpd/routes.go

 1package httpd
 2
 3import "net/http"
 4
 5// Route is one entry in the explicit route table. The view-only guarantee is
 6// structural: Handler() consults web.mode when building the table, and the
 7// route test asserts no mutating route exists in view_only mode.
 8type Route struct {
 9	Method  string
10	Pattern string // without method prefix
11	// Mutating marks routes that can change server state. The git transport
12	// POSTs are not mutating: upload-pack is a pure read, and the
13	// receive-pack endpoint is a static refusal that writes nothing.
14	Mutating bool
15	Handler  http.HandlerFunc
16}
17
18// Routes returns the route table for the configured web.mode.
19func (s *Server) Routes() []Route {
20	// Git smart transport (anonymous, public repos only).
21	routes := []Route{
22		{Method: "GET", Pattern: "/{owner}/{repo}/info/refs", Handler: s.infoRefs},
23		{Method: "POST", Pattern: "/{owner}/{repo}/git-upload-pack", Handler: s.uploadPack},
24		{Method: "POST", Pattern: "/{owner}/{repo}/git-receive-pack", Handler: s.receivePackRefusal},
25	}
26
27	// Web UI, read-only. These exist in every mode.
28	routes = append(routes,
29		Route{Method: "GET", Pattern: "/{$}", Handler: s.index},
30		Route{Method: "GET", Pattern: "/static/style.css", Handler: s.stylesheet},
31		Route{Method: "GET", Pattern: "/{owner}/{repo}", Handler: s.repoHome},
32		Route{Method: "GET", Pattern: "/{owner}/{repo}/tree/{ref}/{path...}", Handler: s.tree},
33		Route{Method: "GET", Pattern: "/{owner}/{repo}/blob/{ref}/{path...}", Handler: s.blob},
34		Route{Method: "GET", Pattern: "/{owner}/{repo}/raw/{ref}/{path...}", Handler: s.raw},
35		Route{Method: "GET", Pattern: "/{owner}/{repo}/log", Handler: s.log},
36		Route{Method: "GET", Pattern: "/{owner}/{repo}/log/{ref}", Handler: s.log},
37		Route{Method: "GET", Pattern: "/{owner}/{repo}/commit/{sha}", Handler: s.commit},
38		Route{Method: "GET", Pattern: "/{owner}/{repo}/refs", Handler: s.refs},
39		Route{Method: "GET", Pattern: "/{owner}/{repo}/archive/{file}", Handler: s.archive},
40		Route{Method: "GET", Pattern: "/{owner}/{repo}/issues", Handler: s.issues},
41		Route{Method: "GET", Pattern: "/{owner}/{repo}/issues/{n}", Handler: s.issue},
42		Route{Method: "GET", Pattern: "/{owner}/{repo}/mrs", Handler: s.mrs},
43		Route{Method: "GET", Pattern: "/{owner}/{repo}/mrs/{n}", Handler: s.mr},
44	)
45
46	// The JSON API is its own opt-in surface, independent of web.mode.
47	if s.cfg.API.Enabled {
48		routes = append(routes,
49			Route{Method: "POST", Pattern: "/api/v1/cmd", Mutating: true, Handler: s.apiCmd},
50		)
51	}
52
53	// Account-mode routes exist only when web.mode = "accounts". In
54	// view_only they are never registered — the structural guarantee.
55	if s.cfg.Web.Mode == "accounts" {
56		routes = append(routes,
57			Route{Method: "GET", Pattern: "/login", Handler: s.login, Mutating: true}, // consumes a one-time token
58			Route{Method: "POST", Pattern: "/logout", Mutating: true,
59				Handler: s.checkOrigin(s.logout)},
60			Route{Method: "GET", Pattern: "/new", Handler: s.requireUser(s.newRepoForm)},
61			Route{Method: "POST", Pattern: "/new", Mutating: true,
62				Handler: s.checkOrigin(s.requireUser(s.newRepoSubmit))},
63			Route{Method: "POST", Pattern: "/{owner}/{repo}/issues/new", Mutating: true,
64				Handler: s.checkOrigin(s.requireUser(s.issueCreateSubmit))},
65			Route{Method: "POST", Pattern: "/{owner}/{repo}/issues/{n}/comment", Mutating: true,
66				Handler: s.checkOrigin(s.requireUser(s.issueCommentSubmit))},
67			Route{Method: "POST", Pattern: "/{owner}/{repo}/mrs/{n}/comment", Mutating: true,
68				Handler: s.checkOrigin(s.requireUser(s.mrCommentSubmit))},
69			Route{Method: "GET", Pattern: "/{owner}/{repo}/edit/{ref}/{path...}",
70				Handler: s.requireUser(s.editForm)},
71			Route{Method: "POST", Pattern: "/{owner}/{repo}/edit/{ref}/{path...}", Mutating: true,
72				Handler: s.checkOrigin(s.requireUser(s.editSubmit))},
73		)
74	}
75	return routes
76}
77
78func (s *Server) Handler() http.Handler {
79	mux := http.NewServeMux()
80	for _, r := range s.Routes() {
81		mux.HandleFunc(r.Method+" "+r.Pattern, r.Handler)
82	}
83	return mux
84}