Mercurial > gemma

annotate pkg/auth/middleware.go @ 414:c1047fd04a3a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Moved project specific Go packages to new pkg folder.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 15 Aug 2018 17:30:50 +0200
parents auth/middleware.go@a7b2db8b3d18
children 62c909dd3098
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
119
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package auth
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
3 import (
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
4 "context"
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
5 "net/http"
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
6 "strings"
119
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
7 )
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9 type contextType int
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
11 const (
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
12 sessionKey contextType = iota
119
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13 tokenKey
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
14 )
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
15
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
16 func GetSession(req *http.Request) (*Session, bool) {
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
17 session, ok := req.Context().Value(sessionKey).(*Session)
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
18 return session, ok
119
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19 }
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
21 func GetToken(req *http.Request) (string, bool) {
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
22 token, ok := req.Context().Value(tokenKey).(string)
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
23 return token, ok
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
24 }
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
25
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
26 func SessionMiddleware(next http.Handler) http.Handler {
119
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
27
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
28 return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
29
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
30 auth := req.Header.Get("X-Gemma-Auth")
119
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
31
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
32 token := strings.TrimSpace(auth)
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
33 if token == "" {
119
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
34 http.Error(rw, http.StatusText(http.StatusUnauthorized), http.StatusUnauthorized)
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
35 return
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
36 }
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
37
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
38 session := ConnPool.Session(token)
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
39 if session == nil {
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
40 http.Error(rw, http.StatusText(http.StatusUnauthorized), http.StatusUnauthorized)
119
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
41 return
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
42 }
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
43
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
44 ctx := req.Context()
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
45 ctx = context.WithValue(ctx, sessionKey, session)
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
46 ctx = context.WithValue(ctx, tokenKey, token)
119
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
47 req = req.WithContext(ctx)
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
48
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
49 next.ServeHTTP(rw, req)
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
50 })
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
51 }
128
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
52
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
53 func SessionChecker(next http.Handler, check func(*Session) bool) http.Handler {
128
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
54 return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
55 claims, ok := GetSession(req)
128
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
56 if !ok || !check(claims) {
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
57 http.Error(rw, http.StatusText(http.StatusUnauthorized), http.StatusUnauthorized)
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
58 return
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
59 }
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
60 next.ServeHTTP(rw, req)
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
61 })
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
62 }
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
63
134
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
64 func HasRole(roles ...string) func(*Session) bool {
0c56c56a1c44 Removed the JWT layer from the session management.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 128
diff changeset
65 return func(session *Session) bool {
128
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
66 for _, r1 := range roles {
326
a7b2db8b3d18 Added type for roles.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 237
diff changeset
67 if session.Roles.Has(r1) {
a7b2db8b3d18 Added type for roles.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 237
diff changeset
68 return true
128
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
69 }
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
70 }
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
71 return false
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
72 }
441a8ee637c5 Added claims checker + example.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 119
diff changeset
73 }
226
63dd5216eee4 Refactored gemma server to be more REST-like.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 134
diff changeset
74
237
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 230
diff changeset
75 func EnsureRole(roles ...string) func(http.Handler) http.Handler {
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 230
diff changeset
76 return func(handler http.Handler) http.Handler {
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 230
diff changeset
77 return SessionMiddleware(SessionChecker(handler, HasRole(roles...)))
226
63dd5216eee4 Refactored gemma server to be more REST-like.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 134
diff changeset
78 }
63dd5216eee4 Refactored gemma server to be more REST-like.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 134
diff changeset
79 }