summaryrefslogtreecommitdiff
path: root/share/www/script/test/security_validation.js
blob: d5f8ff3ff063d64a09df34c79768fe1ac1af998b (plain)
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
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

couchTests.security_validation = function(debug) {
  // This tests couchdb's security and validation features. This does
  // not test authentication, except to use test authentication code made
  // specifically for this testing. It is a WWW-Authenticate scheme named
  // X-Couch-Test-Auth, and the user names and passwords are hard coded
  // on the server-side.
  //
  // We could have used Basic authentication, however the XMLHttpRequest
  // implementation for Firefox and Safari, and probably other browsers are
  // broken (Firefox always prompts the user on 401 failures, Safari gives
  // odd security errors when using different name/passwords, perhaps due
  // to cross site scripting prevention). These problems essentially make Basic
  // authentication testing in the browser impossible. But while hard to
  // test automated in the browser, Basic auth may still useful for real
  // world use where these bugs/behaviors don't matter.
  //
  // So for testing purposes we are using this custom X-Couch-Test-Auth.
  // It's identical to Basic auth, except it doesn't even base64 encode
  // the "username:password" string, it's sent completely plain text.
  // Firefox and Safari both deal with this correctly (which is to say
  // they correctly do nothing special).

  var db = new CouchDB("test_suite_db", {"X-Couch-Full-Commit":"false"});
  db.deleteDb();
  db.createDb();
  if (debug) debugger;

  run_on_modified_server(
    [{section: "httpd",
      key: "authentication_handlers",
      value: "{couch_httpd_auth, special_test_authentication_handler}"},
     {section:"httpd",
      key: "WWW-Authenticate",
      value:  "X-Couch-Test-Auth"}],

    function () {
      // try saving document using the wrong credentials
      var wrongPasswordDb = new CouchDB("test_suite_db",
        {"WWW-Authenticate": "X-Couch-Test-Auth Damien Katz:foo"}
      );

      try {
        wrongPasswordDb.save({foo:1,author:"Damien Katz"});
        T(false && "Can't get here. Should have thrown an error 1");
      } catch (e) {
        T(e.error == "unauthorized");
        T(wrongPasswordDb.last_req.status == 401);
      }

      // test force basic login
      var resp = wrongPasswordDb.request("GET", "/_session?basic=true");
      var err = JSON.parse(resp.responseText);
      T(err.error == "unauthorized");
      T(resp.status == 401);

      // Create the design doc that will run custom validation code
      var designDoc = {
        _id:"_design/test",
        language: "javascript",
        validate_doc_update: "(" + (function (newDoc, oldDoc, userCtx, secObj) {
          if (secObj.admin_override) {
            if (userCtx.roles.indexOf('_admin') != -1) {
              // user is admin, they can do anything
              return true;
            }
          }
          // docs should have an author field.
          if (!newDoc._deleted && !newDoc.author) {
            throw {forbidden:
                "Documents must have an author field"};
          }
          if (oldDoc && oldDoc.author != userCtx.name) {
              throw {unauthorized:
                  "You are not the author of this document. You jerk."};
          }
        }).toString() + ")"
      }

      // Save a document normally
      var userDb = new CouchDB("test_suite_db",
        {"WWW-Authenticate": "X-Couch-Test-Auth Damien Katz:pecan pie"}
      );

      T(userDb.save({_id:"testdoc", foo:1, author:"Damien Katz"}).ok);

      // Attempt to save the design as a non-admin
      try {
        userDb.save(designDoc);
        T(false && "Can't get here. Should have thrown an error on design doc");
      } catch (e) {
        T(e.error == "unauthorized");
        T(userDb.last_req.status == 401);
      }

      // set user as the admin
      T(db.setSecObj({
        admins : {names : ["Damien Katz"]}
      }).ok);

      T(userDb.save(designDoc).ok);

      // test the _session API
      var resp = userDb.request("GET", "/_session");
      var user = JSON.parse(resp.responseText).userCtx;
      T(user.name == "Damien Katz");
      // test that the roles are listed properly
      TEquals(user.roles, []);


      // update the document
      var doc = userDb.open("testdoc");
      doc.foo=2;
      T(userDb.save(doc).ok);

      // Save a document that's missing an author field.
      try {
        userDb.save({foo:1});
        T(false && "Can't get here. Should have thrown an error 2");
      } catch (e) {
        T(e.error == "forbidden");
        T(userDb.last_req.status == 403);
      }

      // Now attempt to update the document as a different user, Jan
      var user2Db = new CouchDB("test_suite_db",
        {"WWW-Authenticate": "X-Couch-Test-Auth Jan Lehnardt:apple"}
      );

      var doc = user2Db.open("testdoc");
      doc.foo=3;
      try {
        user2Db.save(doc);
        T(false && "Can't get here. Should have thrown an error 3");
      } catch (e) {
        T(e.error == "unauthorized");
        T(user2Db.last_req.status == 401);
      }

      // Now have Damien change the author to Jan
      doc = userDb.open("testdoc");
      doc.author="Jan Lehnardt";
      T(userDb.save(doc).ok);

      // Now update the document as Jan
      doc = user2Db.open("testdoc");
      doc.foo = 3;
      T(user2Db.save(doc).ok);

      // Damien can't delete it
      try {
        userDb.deleteDoc(doc);
        T(false && "Can't get here. Should have thrown an error 4");
      } catch (e) {
        T(e.error == "unauthorized");
        T(userDb.last_req.status == 401);
      }
      
      // admin must save with author field unless admin override
      var resp = db.request("GET", "/_session");
      var user = JSON.parse(resp.responseText).userCtx;
      T(user.name == null);
      // test that we are admin
      TEquals(user.roles, ["_admin"]);
      
      // can't save the doc even though we are admin
      var doc = db.open("testdoc");
      doc.foo=3;
      try {
        db.save(doc);
        T(false && "Can't get here. Should have thrown an error 3");
      } catch (e) {
        T(e.error == "unauthorized");
        T(db.last_req.status == 401);
      }

      // now turn on admin override
      T(db.setDbProperty("_security", {admin_override : true}).ok);
      T(db.save(doc).ok);

      // try to do something lame
      try {
        db.setDbProperty("_security", ["foo"]);
        T(false && "can't do this");
      } catch(e) {}

      // go back to normal
      T(db.setDbProperty("_security", {admin_override : false}).ok);

      // Now delete document
      T(user2Db.deleteDoc(doc).ok);

      // now test bulk docs
      var docs = [{_id:"bahbah",author:"Damien Katz",foo:"bar"},{_id:"fahfah",foo:"baz"}];

      // Create the docs
      var results = db.bulkSave(docs);

      T(results[0].rev)
      T(results[0].error == undefined)
      T(results[1].rev === undefined)
      T(results[1].error == "forbidden")

      T(db.open("bahbah"));
      T(db.open("fahfah") == null);


      // now all or nothing with a failure
      var docs = [{_id:"booboo",author:"Damien Katz",foo:"bar"},{_id:"foofoo",foo:"baz"}];

      // Create the docs
      var results = db.bulkSave(docs, {all_or_nothing:true});

      T(results.errors.length == 1);
      T(results.errors[0].error == "forbidden");
      T(db.open("booboo") == null);
      T(db.open("foofoo") == null);

      // Now test replication
      var AuthHeaders = {"WWW-Authenticate": "X-Couch-Test-Auth Christopher Lenz:dog food"};
      var host = CouchDB.host;
      var dbPairs = [
        {source:"test_suite_db_a",
          target:"test_suite_db_b"},

        {source:"test_suite_db_a",
          target:{url: window.location.protocol + "//" + host + "/test_suite_db_b",
                  headers: AuthHeaders}},

        {source:{url:window.location.protocol + "//" + host + "/test_suite_db_a",
                 headers: AuthHeaders},
          target:"test_suite_db_b"},

        {source:{url:window.location.protocol + "//" + host + "/test_suite_db_a",
                 headers: AuthHeaders},
         target:{url:window.location.protocol + "//" + host + "/test_suite_db_b",
                 headers: AuthHeaders}},
      ]
      var adminDbA = new CouchDB("test_suite_db_a", {"X-Couch-Full-Commit":"false"});
      var adminDbB = new CouchDB("test_suite_db_b", {"X-Couch-Full-Commit":"false"});
      var dbA = new CouchDB("test_suite_db_a",
          {"WWW-Authenticate": "X-Couch-Test-Auth Christopher Lenz:dog food"});
      var dbB = new CouchDB("test_suite_db_b",
          {"WWW-Authenticate": "X-Couch-Test-Auth Christopher Lenz:dog food"});
      var xhr;
      for (var testPair = 0; testPair < dbPairs.length; testPair++) {
        var A = dbPairs[testPair].source
        var B = dbPairs[testPair].target

        adminDbA.deleteDb();
        adminDbA.createDb();
        adminDbB.deleteDb();
        adminDbB.createDb();

        // save and replicate a documents that will and will not pass our design
        // doc validation function.
        dbA.save({_id:"foo1",value:"a",author:"Noah Slater"});
        dbA.save({_id:"foo2",value:"a",author:"Christopher Lenz"});
        dbA.save({_id:"bad1",value:"a"});

        T(CouchDB.replicate(A, B, {headers:AuthHeaders}).ok);
        T(CouchDB.replicate(B, A, {headers:AuthHeaders}).ok);

        T(dbA.open("foo1"));
        T(dbB.open("foo1"));
        T(dbA.open("foo2"));
        T(dbB.open("foo2"));

        // save the design doc to dbA
        delete designDoc._rev; // clear rev from previous saves
        adminDbA.save(designDoc);

        // no affect on already saved docs
        T(dbA.open("bad1"));

        // Update some docs on dbB. Since the design hasn't replicated, anything
        // is allowed.

        // this edit will fail validation on replication to dbA (no author)
        T(dbB.save({_id:"bad2",value:"a"}).ok);

        // this edit will fail security on replication to dbA (wrong author
        //  replicating the change)
        var foo1 = dbB.open("foo1");
        foo1.value = "b";
        dbB.save(foo1);

        // this is a legal edit
        var foo2 = dbB.open("foo2");
        foo2.value = "b";
        dbB.save(foo2);

        var results = CouchDB.replicate(B, A, {headers:AuthHeaders});

        T(results.ok);

        T(results.history[0].docs_written == 1);
        T(results.history[0].doc_write_failures == 2);

        // bad2 should not be on dbA
        T(dbA.open("bad2") == null);

        // The edit to foo1 should not have replicated.
        T(dbA.open("foo1").value == "a");

        // The edit to foo2 should have replicated.
        T(dbA.open("foo2").value == "b");
      }
    });
};