diff options
Diffstat (limited to 'common/src/leap/soledad')
| -rw-r--r-- | common/src/leap/soledad/common/couch.py | 84 | ||||
| -rw-r--r-- | common/src/leap/soledad/common/tests/test_couch_operations_atomicity.py | 6 | ||||
| -rw-r--r-- | common/src/leap/soledad/common/tests/test_server.py | 54 |
3 files changed, 52 insertions, 92 deletions
diff --git a/common/src/leap/soledad/common/couch.py b/common/src/leap/soledad/common/couch.py index 456d4fdf..d16563d3 100644 --- a/common/src/leap/soledad/common/couch.py +++ b/common/src/leap/soledad/common/couch.py @@ -35,7 +35,6 @@ from couchdb.client import Server from couchdb.http import ( ResourceConflict, ResourceNotFound, - Unauthorized, ServerError, Session, ) @@ -48,6 +47,7 @@ from u1db.errors import ( ConflictedDoc, DocumentDoesNotExist, DocumentAlreadyDeleted, + Unauthorized, ) from u1db.backends import CommonBackend, CommonSyncTarget from u1db.remote import http_app @@ -1354,14 +1354,6 @@ class CouchSyncTarget(CommonSyncTarget): source_replica_transaction_id) -class NotEnoughCouchPermissions(Exception): - """ - Raised when failing to assert for enough permissions on underlying Couch - Database. - """ - pass - - class CouchServerState(ServerState): """ Inteface of the WSGI server with the CouchDB backend. @@ -1381,65 +1373,6 @@ class CouchServerState(ServerState): self._couch_url = couch_url self._shared_db_name = shared_db_name self._tokens_db_name = tokens_db_name - try: - self._check_couch_permissions() - except NotEnoughCouchPermissions: - logger.error("Not enough permissions on underlying couch " - "database (%s)." % self._couch_url) - except (socket.error, socket.gaierror, socket.herror, - socket.timeout), e: - logger.error("Socket problem while trying to reach underlying " - "couch database: (%s, %s)." % - (self._couch_url, e)) - - def _check_couch_permissions(self): - """ - Assert that Soledad Server has enough permissions on the underlying - couch database. - - Soledad Server has to be able to do the following in the couch server: - - * Create, read and write from/to 'shared' db. - * Create, read and write from/to 'user-<anything>' dbs. - * Read from 'tokens' db. - - This function tries to perform the actions above using the "low level" - couch library to ensure that Soledad Server can do everything it needs - on the underlying couch database. - - :param couch_url: The URL of the couch database. - :type couch_url: str - - @raise NotEnoughCouchPermissions: Raised in case there are not enough - permissions to read/write/create the needed couch databases. - :rtype: bool - """ - - def _open_couch_db(dbname): - server = Server(url=self._couch_url) - try: - server[dbname] - except ResourceNotFound: - server.create(dbname) - return server[dbname] - - def _create_delete_test_doc(db): - doc_id, _ = db.save({'test': 'document'}) - doc = db[doc_id] - db.delete(doc) - - try: - # test read/write auth for shared db - _create_delete_test_doc( - _open_couch_db(self._shared_db_name)) - # test read/write auth for user-<something> db - _create_delete_test_doc( - _open_couch_db('%stest-db' % USER_DB_PREFIX)) - # test read auth for tokens db - tokensdb = _open_couch_db(self._tokens_db_name) - tokensdb.info() - except Unauthorized: - raise NotEnoughCouchPermissions(self._couch_url) def open_database(self, dbname): """ @@ -1451,7 +1384,6 @@ class CouchServerState(ServerState): :return: The CouchDatabase object. :rtype: CouchDatabase """ - # TODO: open couch return CouchDatabase.open_database( self._couch_url + '/' + dbname, create=False) @@ -1460,16 +1392,20 @@ class CouchServerState(ServerState): """ Ensure couch database exists. + Usually, this method is used by the server to ensure the existence of + a database. In our setup, the Soledad user that accesses the underlying + couch server should never have permission to create (or delete) + databases. But, in case it ever does, by raising an exception here we + have one more guarantee that no modified client will be able to + enforce creation of a database when syncing. + :param dbname: The name of the database to ensure. :type dbname: str :return: The CouchDatabase object and the replica uid. :rtype: (CouchDatabase, str) """ - db = CouchDatabase.open_database( - self._couch_url + '/' + dbname, - create=True) - return db, db._replica_uid + raise Unauthorized() def delete_database(self, dbname): """ @@ -1478,7 +1414,7 @@ class CouchServerState(ServerState): :param dbname: The name of the database to delete. :type dbname: str """ - CouchDatabase.delete_database(self._couch_url + '/' + dbname) + raise Unauthorized() def _set_couch_url(self, url): """ diff --git a/common/src/leap/soledad/common/tests/test_couch_operations_atomicity.py b/common/src/leap/soledad/common/tests/test_couch_operations_atomicity.py index 5384d465..3c457cc5 100644 --- a/common/src/leap/soledad/common/tests/test_couch_operations_atomicity.py +++ b/common/src/leap/soledad/common/tests/test_couch_operations_atomicity.py @@ -33,11 +33,17 @@ from leap.soledad.common.tests.test_target import ( make_leap_document_for_test, token_leap_sync_target, ) +from leap.soledad.common.tests.test_server import _couch_ensure_database REPEAT_TIMES = 20 +# monkey path CouchServerState so it can ensure databases. + +CouchServerState.ensure_database = _couch_ensure_database + + class CouchAtomicityTestCase(CouchDBTestCase, TestCaseWithServer): @staticmethod diff --git a/common/src/leap/soledad/common/tests/test_server.py b/common/src/leap/soledad/common/tests/test_server.py index 06595ed2..f8d2a64f 100644 --- a/common/src/leap/soledad/common/tests/test_server.py +++ b/common/src/leap/soledad/common/tests/test_server.py @@ -51,6 +51,17 @@ from leap.soledad.server import SoledadApp, LockResource from leap.soledad.server.auth import URLToAuthorization +# monkey path CouchServerState so it can ensure databases. + +def _couch_ensure_database(self, dbname): + db = CouchDatabase.open_database( + self._couch_url + '/' + dbname, + create=True) + return db, db._replica_uid + +CouchServerState.ensure_database = _couch_ensure_database + + class ServerAuthorizationTestCase(BaseLeapTest): """ Tests related to Soledad server authorization. @@ -340,15 +351,16 @@ class EncryptedSyncTestCase( _, doclist = sol1.get_all_docs() self.assertEqual([], doclist) doc1 = sol1.create_doc(json.loads(simple_doc)) - # sync with server - sol1._server_url = self.getURL() - sol1.sync() - # assert doc was sent to couch db + # ensure remote db exists before syncing db = CouchDatabase( self._couch_url, # the name of the user database is "user-<uuid>". 'user-user-uuid', ) + # sync with server + sol1._server_url = self.getURL() + sol1.sync() + # assert doc was sent to couch db _, doclist = db.get_all_docs() self.assertEqual(1, len(doclist)) couchdoc = doclist[0] @@ -395,15 +407,16 @@ class EncryptedSyncTestCase( _, doclist = sol1.get_all_docs() self.assertEqual([], doclist) doc1 = sol1.create_doc(json.loads(simple_doc)) - # sync with server - sol1._server_url = self.getURL() - sol1.sync() - # assert doc was sent to couch db + # ensure remote db exists before syncing db = CouchDatabase( self._couch_url, # the name of the user database is "user-<uuid>". 'user-user-uuid', ) + # sync with server + sol1._server_url = self.getURL() + sol1.sync() + # assert doc was sent to couch db _, doclist = db.get_all_docs() self.assertEqual(1, len(doclist)) couchdoc = doclist[0] @@ -454,6 +467,12 @@ class EncryptedSyncTestCase( self.assertEqual([], doclist) content = binascii.hexlify(os.urandom(length/2)) # len() == length doc1 = sol1.create_doc({'data': content}) + # ensure remote db exists before syncing + db = CouchDatabase( + self._couch_url, + # the name of the user database is "user-<uuid>". + 'user-user-uuid', + ) # sync with server sol1._server_url = self.getURL() sol1.sync() @@ -473,11 +492,6 @@ class EncryptedSyncTestCase( # assert incoming doc is equal to the first sent doc self.assertEqual(doc1, doc2) # delete remote database - db = CouchDatabase( - self._couch_url, - # the name of the user database is "user-<uuid>". - 'user-user-uuid', - ) db.delete_database() @@ -497,6 +511,12 @@ class EncryptedSyncTestCase( # create many small files for i in range(0, number_of_docs): sol1.create_doc(json.loads(simple_doc)) + # ensure remote db exists before syncing + db = CouchDatabase( + self._couch_url, + # the name of the user database is "user-<uuid>". + 'user-user-uuid', + ) # sync with server sol1._server_url = self.getURL() sol1.sync() @@ -516,11 +536,6 @@ class EncryptedSyncTestCase( for doc in doclist: self.assertEqual(sol1.get_doc(doc.doc_id), doc) # delete remote database - db = CouchDatabase( - self._couch_url, - # the name of the user database is "user-<uuid>". - 'user-user-uuid', - ) db.delete_database() class LockResourceTestCase( @@ -542,6 +557,9 @@ class LockResourceTestCase( CouchDBTestCase.setUp(self) self.tempdir = tempfile.mkdtemp(prefix="leap_tests-") self._couch_url = 'http://localhost:' + str(self.wrapper.port) + # create the databases + CouchDatabase(self._couch_url, 'shared') + CouchDatabase(self._couch_url, 'tokens') self._state = CouchServerState( self._couch_url, 'shared', 'tokens') |