Mercurial > gemma
annotate pkg/middleware/modifyquery.go @ 4550:aa2d0006e742 iso-areas
Write iso lines between classes to SVG for debugging.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
---|---|
date | Mon, 30 Sep 2019 16:34:55 +0200 |
parents | 04967d6565fa |
children | 5f47eeea988d |
rev | line source |
---|---|
1017
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
1 // This is Free Software under GNU Affero General Public License v >= 3.0 |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
2 // without warranty, see README.md and license for details. |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
3 // |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
4 // SPDX-License-Identifier: AGPL-3.0-or-later |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
5 // License-Filename: LICENSES/AGPL-3.0.txt |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
6 // |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
7 // Copyright (C) 2018 by via donau |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
8 // – Österreichische Wasserstraßen-Gesellschaft mbH |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
9 // Software engineering by Intevation GmbH |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
10 // |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
11 // Author(s): |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de> |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
471
diff
changeset
|
13 |
419
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
14 package middleware |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
15 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
16 import ( |
467
73c7b2d6246e
Used hex-encoded usernames and a stored procedure to decode them to impersonate with the metamorph user.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
438
diff
changeset
|
17 "encoding/hex" |
419
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
18 "log" |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
19 "net/http" |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
20 "net/url" |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
21 "strings" |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
22 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
23 "gemma.intevation.de/gemma/pkg/auth" |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
24 ) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
25 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
26 // ParseQuery is a modified version of the internal query |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
27 // parser of the url.parseQuery of the standard library. |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
28 func ParseQuery( |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
29 m url.Values, |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
30 query string, |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
31 keySep, valueSep string, |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
32 unescape func(string) (string, error), |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
33 ) error { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
34 if unescape == nil { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
35 unescape = url.QueryUnescape |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
36 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
37 for query != "" { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
38 key := query |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
39 if i := strings.Index(key, keySep); i >= 0 { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
40 key, query = key[:i], key[i+1:] |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
41 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
42 } else { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
43 query = "" |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
44 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
45 if key == "" { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
46 continue |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
47 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
48 value := "" |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
49 if i := strings.Index(key, valueSep); i >= 0 { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
50 key, value = key[:i], key[i+1:] |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
51 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
52 key, err := unescape(key) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
53 if err != nil { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
54 return err |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
55 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
56 value, err = unescape(value) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
57 if err != nil { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
58 return err |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
59 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
60 m[key] = append(m[key], value) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
61 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
62 return nil |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
63 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
64 |
1494
04967d6565fa
Added api doc strings for the middleware package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1040
diff
changeset
|
65 // ModifyQuery creates an http.Handler which calls a modify function first before |
04967d6565fa
Added api doc strings for the middleware package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1040
diff
changeset
|
66 // calling the the nested next http.Handler. |
419
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
67 func ModifyQuery(next http.Handler, modify func(*http.Request, url.Values) error) http.Handler { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
68 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
69 return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
70 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
71 // GeoServer query parameters contain ';' as sub key separators. |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
72 // If we would use req.URL.Query() this would be split |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
73 // at the wrong level resulting in broken key/value pairs. |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
74 // So we do the splitting ourselves. |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
75 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
76 parameters := make(url.Values) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
77 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
78 if err := ParseQuery(parameters, req.URL.RawQuery, "&", "=", nil); err != nil { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
79 log.Printf("parsing query failed: %v\n", err) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
80 http.Error(rw, http.StatusText(http.StatusBadRequest), http.StatusBadRequest) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
81 return |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
82 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
83 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
84 if err := modify(req, parameters); err != nil { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
85 log.Printf("modifying query parameters failed: %v\n", err) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
86 http.Error(rw, http.StatusText(http.StatusBadRequest), http.StatusBadRequest) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
87 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
88 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
89 req.URL.RawQuery = parameters.Encode() |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
90 |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
91 next.ServeHTTP(rw, req) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
92 }) |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
93 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
94 |
1494
04967d6565fa
Added api doc strings for the middleware package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1040
diff
changeset
|
95 // InjectUser is a modify function fitting into ModifyQuery to inject the |
04967d6565fa
Added api doc strings for the middleware package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1040
diff
changeset
|
96 // user's name from the current session hex-encoded into the 'env' query parameter. |
04967d6565fa
Added api doc strings for the middleware package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1040
diff
changeset
|
97 // This is used by the GeoServer to restrict the access to this the user/role |
04967d6565fa
Added api doc strings for the middleware package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1040
diff
changeset
|
98 // to show show the requested map. |
419
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
99 func InjectUser(req *http.Request, parameters url.Values) error { |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
100 // To prevent SQL injections |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
101 parameters.Del("env") |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
102 |
471
1b08432a0e5d
Cosmetics.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
467
diff
changeset
|
103 if session, ok := auth.GetSession(req); ok { |
1040
aac42dacb503
Stopped log spamming from OGC proxy and stopped leaking injected user names into log.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
104 // log.Printf("info: injecting user %s\n", session.User) |
467
73c7b2d6246e
Used hex-encoded usernames and a stored procedure to decode them to impersonate with the metamorph user.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
438
diff
changeset
|
105 parameters.Set("env", "user:"+hex.EncodeToString([]byte(session.User))) |
419
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
106 } |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
107 return nil |
6627c48363a0
First attempt for user injection of proxy for using GeoServer with role based security.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
108 } |