diff options
Diffstat (limited to 'src/leap/soledad/common/couch/state.py')
-rw-r--r-- | src/leap/soledad/common/couch/state.py | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/src/leap/soledad/common/couch/state.py b/src/leap/soledad/common/couch/state.py index 5614b32f..f3645ab6 100644 --- a/src/leap/soledad/common/couch/state.py +++ b/src/leap/soledad/common/couch/state.py @@ -18,118 +18,20 @@ Server state using CouchDatabase as backend. """ import re -import os -import treq from six.moves.urllib.parse import urljoin -from twisted.internet import defer -from urlparse import urlsplit - -from twisted.internet import reactor from leap.soledad.common.log import getLogger from leap.soledad.common.couch import CouchDatabase -from leap.soledad.common.couch import CONFIG_DOC_ID -from leap.soledad.common.couch import SCHEMA_VERSION -from leap.soledad.common.couch import SCHEMA_VERSION_KEY from leap.soledad.common.command import exec_validated_cmd from leap.soledad.common.l2db.remote.server_state import ServerState from leap.soledad.common.l2db.errors import Unauthorized -from leap.soledad.common.errors import WrongCouchSchemaVersionError -from leap.soledad.common.errors import MissingCouchConfigDocumentError logger = getLogger(__name__) # -# Database schema version verification -# - -@defer.inlineCallbacks -def _check_db_schema_version(url, db, auth, agent=None): - """ - Check if the schema version is up to date for a given database. - - :param url: the server base URL. - :type url: str - :param db: the database name. - :type db: str - :param auth: a tuple with (username, password) for acessing CouchDB. - :type auth: tuple(str, str) - :param agent: an optional agent for doing requests, used in tests. - :type agent: twisted.web.client.Agent - - :raise MissingCouchConfigDocumentError: raised when a database is not empty - but has no config document in it. - - :raise WrongCouchSchemaVersionError: raised when a config document was - found but the schema version is - different from what is expected. - """ - # if there are documents, ensure that a config doc exists - db_url = urljoin(url, '%s/' % db) - config_doc_url = urljoin(db_url, CONFIG_DOC_ID) - res = yield treq.get(config_doc_url, auth=auth, agent=agent) - - if res.code != 200 and res.code != 404: - raise Exception("Unexpected HTTP response code: %d" % res.code) - - elif res.code == 404: - res = yield treq.get(urljoin(db_url, '_all_docs'), auth=auth, - params={'limit': 1}, agent=agent) - docs = yield res.json() - if docs['total_rows'] != 0: - logger.error( - "Missing couch config document in database %s" % db) - raise MissingCouchConfigDocumentError(db) - - elif res.code == 200: - config_doc = yield res.json() - if config_doc[SCHEMA_VERSION_KEY] != SCHEMA_VERSION: - logger.error( - "Unsupported database schema in database %s" % db) - raise WrongCouchSchemaVersionError(db) - - -def _stop(failure, reactor): - logger.error("Failure while checking schema versions: %r - %s" - % (failure, failure.message)) - reactor.addSystemEventTrigger('after', 'shutdown', os._exit, 1) - reactor.stop() - - -@defer.inlineCallbacks -def check_schema_versions(couch_url, agent=None, reactor=reactor): - """ - Check that all user databases use the correct couch schema. - - :param couch_url: The URL for the couch database. - :type couch_url: str - :param agent: an optional agent for doing requests, used in tests. - :type agent: twisted.web.client.Agent - :param reactor: an optional reactor for stopping in case of errors, used - in tests. - :type reactor: twisted.internet.base.ReactorBase - """ - url = urlsplit(couch_url) - auth = (url.username, url.password) if url.username else None - url = "%s://%s:%d" % (url.scheme, url.hostname, url.port) - res = yield treq.get(urljoin(url, '_all_dbs'), auth=auth, agent=agent) - dbs = yield res.json() - deferreds = [] - semaphore = defer.DeferredSemaphore(20) - for db in dbs: - if not db.startswith('user-'): - continue - d = semaphore.run(_check_db_schema_version, url, db, auth, agent=agent) - d.addErrback(_stop, reactor=reactor) - deferreds.append(d) - d = defer.gatherResults(deferreds, consumeErrors=True) - yield d - - -# # CouchDB Server state # |