authenticate against 'admin' db unless a specific DB is provided

fixes #82 and #54
mongodb · May 22, 2017 · ab0fee2 · ab0fee2
1 parent 600bf49
commit ab0fee2
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Showing 2 changed files with 15 additions and 5 deletions.
diff --git a/flask_pymongo/__init__.py b/flask_pymongo/__init__.py
@@ -125,12 +125,15 @@ def init_app(self, app, config_prefix='MONGO'):
         def key(suffix):
             return '%s_%s' % (config_prefix, suffix)
 
+        auth_database = 'admin'
+
         if key('URI') in app.config:
             # bootstrap configuration from the URL
             parsed = uri_parser.parse_uri(app.config[key('URI')])
-            if not parsed.get('database'):
-                raise ValueError('MongoDB URI does not contain database name')
-            app.config[key('DBNAME')] = parsed['database']
+            if parsed.get('database') is not None:
+                auth_database = parsed['database']
+
+            app.config[key('DBNAME')] = parsed.get('database') or app.name
             app.config[key('READ_PREFERENCE')] = parsed['options'].get('readpreference')
             app.config[key('USERNAME')] = parsed['username']
             app.config[key('PASSWORD')] = parsed['password']
@@ -159,6 +162,9 @@ def key(suffix):
             host = app.config[key('URI')]
 
         else:
+            if key('DBNAME') in app.config:
+                auth_database = app.config[key('DBNAME')]
+
             app.config.setdefault(key('HOST'), 'localhost')
             app.config.setdefault(key('PORT'), 27017)
             app.config.setdefault(key('DBNAME'), app.name)
@@ -270,8 +276,10 @@ def key(suffix):
         if any(auth):
             auth_source = app.config[key('AUTH_SOURCE')]
             auth_mechanism = app.config[key('AUTH_MECHANISM')]
-            db.authenticate(username, password, source=auth_source,
-                            mechanism=auth_mechanism)
+            auth_db = cx[auth_database]
+            auth_db.logout()
+            auth_db.authenticate(username, password, source=auth_source,
+                                 mechanism=auth_mechanism)
 
         app.extensions['pymongo'][config_prefix] = (cx, db)
         app.url_map.converters['ObjectId'] = BSONObjectIdConverter

diff --git a/tests/test_config.py b/tests/test_config.py
@@ -1,6 +1,7 @@
 from util import FlaskRequestTest, FlaskPyMongoTest
 
 import time
+import unittest
 
 import pymongo
 import flask
@@ -159,6 +160,7 @@ def test_uri_prioritised_over_host_and_port(self):
             assert mongo.cx.port == 27017
         assert mongo.db.name == 'database_name'
 
+    @unittest.skip("this should really be a test about auth'ing against admin")
     def test_uri_without_database_errors_sensibly(self):
         self.app.config['MONGO_URI'] = 'mongodb://localhost:27017/'
         self.assertRaises(ValueError, flask_pymongo.PyMongo, self.app)