diff options
5 files changed, 600 insertions, 112 deletions
diff --git a/common/changes/feature_4994_add-missing-design-doc-exception b/common/changes/feature_4994_add-missing-design-doc-exception new file mode 100644 index 00000000..d5291cc1 --- /dev/null +++ b/common/changes/feature_4994_add-missing-design-doc-exception @@ -0,0 +1 @@ + o Add exceptions to deal with missing design documents. Fixes #4994. diff --git a/common/src/leap/soledad/common/couch.py b/common/src/leap/soledad/common/couch.py index d2414477..45ca4282 100644 --- a/common/src/leap/soledad/common/couch.py +++ b/common/src/leap/soledad/common/couch.py @@ -27,14 +27,23 @@ import socket from couchdb.client import Server -from couchdb.http import ResourceNotFound, Unauthorized -from u1db import errors, query_parser, vectorclock +from couchdb.http import ResourceNotFound, Unauthorized, ServerError +from u1db import query_parser, vectorclock +from u1db.errors import ( + DatabaseDoesNotExist, + InvalidGeneration, + RevisionConflict, + InvalidDocId, + ConflictedDoc, + DocumentDoesNotExist, + DocumentAlreadyDeleted, +) from u1db.backends import CommonBackend, CommonSyncTarget from u1db.remote import http_app from u1db.remote.server_state import ServerState -from leap.soledad.common import USER_DB_PREFIX, ddocs +from leap.soledad.common import USER_DB_PREFIX, ddocs, errors from leap.soledad.common.document import SoledadDocument @@ -153,6 +162,66 @@ class CouchDocument(SoledadDocument): http_app.Document = CouchDocument +def raise_missing_design_doc_error(exc, ddoc_path): + """ + Raise an appropriate exception when catching a ResourceNotFound when + accessing a design document. + + :param exc: The exception cought. + :type exc: ResourceNotFound + :param ddoc_path: A list representing the requested path. + :type ddoc_path: list + + :raise MissingDesignDocError: Raised when tried to access a missing design + document. + :raise MissingDesignDocListFunctionError: Raised when trying to access a + missing list function on a + design document. + :raise MissingDesignDocNamedViewError: Raised when trying to access a + missing named view on a design + document. + :raise MissingDesignDocDeletedError: Raised when trying to access a + deleted design document. + :raise MissingDesignDocUnknownError: Raised when failed to access a design + document for an yet unknown reason. + """ + path = "".join(ddoc_path) + if exc.message[1] == 'missing': + raise errors.MissingDesignDocError(path) + elif exc.message[1] == 'missing function' or \ + exc.message[1].startswith('missing lists function'): + raise errors.MissingDesignDocListFunctionError(path) + elif exc.message[1] == 'missing_named_view': + raise errors.MissingDesignDocNamedViewError(path) + elif exc.message[1] == 'deleted': + raise errors.MissingDesignDocDeletedError(path) + # other errors are unknown for now + raise errors.DesignDocUnknownError(path) + + +def raise_server_error(exc, ddoc_path): + """ + Raise an appropriate exception when catching a ServerError when + accessing a design document. + + :param exc: The exception cought. + :type exc: ResourceNotFound + :param ddoc_path: A list representing the requested path. + :type ddoc_path: list + + :raise MissingDesignDocListFunctionError: Raised when trying to access a + missing list function on a + design document. + :raise MissingDesignDocUnknownError: Raised when failed to access a design + document for an yet unknown reason. + """ + path = "".join(ddoc_path) + if exc.message[1][0] == 'unnamed_error': + raise errors.MissingDesignDocListFunctionError(path) + # other errors are unknown for now + raise errors.DesignDocUnknownError(path) + + class CouchDatabase(CommonBackend): """ A U1DB implementation that uses CouchDB as its persistence layer. @@ -182,7 +251,7 @@ class CouchDatabase(CommonBackend): server[dbname] except ResourceNotFound: if not create: - raise errors.DatabaseDoesNotExist() + raise DatabaseDoesNotExist() return cls(url, dbname) def __init__(self, url, dbname, replica_uid=None, full_commit=True, @@ -318,12 +387,31 @@ class CouchDatabase(CommonBackend): :return: The current generation. :rtype: int + + :raise MissingDesignDocError: Raised when tried to access a missing + design document. + :raise MissingDesignDocListFunctionError: Raised when trying to access + a missing list function on a + design document. + :raise MissingDesignDocNamedViewError: Raised when trying to access a + missing named view on a design + document. + :raise MissingDesignDocDeletedError: Raised when trying to access a + deleted design document. + :raise MissingDesignDocUnknownError: Raised when failed to access a + design document for an yet + unknown reason. """ # query a couch list function - res = self._database.resource( - '_design', 'transactions', '_list', 'generation', 'log') - response = res.get_json() - return response[2]['generation'] + ddoc_path = ['_design', 'transactions', '_list', 'generation', 'log'] + res = self._database.resource(*ddoc_path) + try: + response = res.get_json() + return response[2]['generation'] + except ResourceNotFound as e: + raise_missing_design_doc_error(e, ddoc_path) + except ServerError as e: + raise_server_error(e, ddoc_path) def _get_generation_info(self): """ @@ -331,12 +419,31 @@ class CouchDatabase(CommonBackend): :return: A tuple containing the current generation and transaction id. :rtype: (int, str) + + :raise MissingDesignDocError: Raised when tried to access a missing + design document. + :raise MissingDesignDocListFunctionError: Raised when trying to access + a missing list function on a + design document. + :raise MissingDesignDocNamedViewError: Raised when trying to access a + missing named view on a design + document. + :raise MissingDesignDocDeletedError: Raised when trying to access a + deleted design document. + :raise MissingDesignDocUnknownError: Raised when failed to access a + design document for an yet + unknown reason. """ # query a couch list function - res = self._database.resource( - '_design', 'transactions', '_list', 'generation', 'log') - response = res.get_json() - return (response[2]['generation'], response[2]['transaction_id']) + ddoc_path = ['_design', 'transactions', '_list', 'generation', 'log'] + res = self._database.resource(*ddoc_path) + try: + response = res.get_json() + return (response[2]['generation'], response[2]['transaction_id']) + except ResourceNotFound as e: + raise_missing_design_doc_error(e, ddoc_path) + except ServerError as e: + raise_server_error(e, ddoc_path) def _get_trans_id_for_gen(self, generation): """ @@ -349,16 +456,36 @@ class CouchDatabase(CommonBackend): :rtype: str :raise InvalidGeneration: Raised when the generation does not exist. + :raise MissingDesignDocError: Raised when tried to access a missing + design document. + :raise MissingDesignDocListFunctionError: Raised when trying to access + a missing list function on a + design document. + :raise MissingDesignDocNamedViewError: Raised when trying to access a + missing named view on a design + document. + :raise MissingDesignDocDeletedError: Raised when trying to access a + deleted design document. + :raise MissingDesignDocUnknownError: Raised when failed to access a + design document for an yet + unknown reason. """ if generation == 0: return '' # query a couch list function - res = self._database.resource( - '_design', 'transactions', '_list', 'trans_id_for_gen', 'log') - response = res.get_json(gen=generation) - if response[2] == {}: - raise errors.InvalidGeneration - return response[2]['transaction_id'] + ddoc_path = [ + '_design', 'transactions', '_list', 'trans_id_for_gen', 'log' + ] + res = self._database.resource(*ddoc_path) + try: + response = res.get_json(gen=generation) + if response[2] == {}: + raise InvalidGeneration + return response[2]['transaction_id'] + except ResourceNotFound as e: + raise_missing_design_doc_error(e, ddoc_path) + except ServerError as e: + raise_server_error(e, ddoc_path) def _get_transaction_log(self): """ @@ -366,12 +493,31 @@ class CouchDatabase(CommonBackend): :return: The complete transaction log. :rtype: [(str, str)] + + :raise MissingDesignDocError: Raised when tried to access a missing + design document. + :raise MissingDesignDocListFunctionError: Raised when trying to access + a missing list function on a + design document. + :raise MissingDesignDocNamedViewError: Raised when trying to access a + missing named view on a design + document. + :raise MissingDesignDocDeletedError: Raised when trying to access a + deleted design document. + :raise MissingDesignDocUnknownError: Raised when failed to access a + design document for an yet + unknown reason. """ # query a couch view - res = self._database.resource( - '_design', 'transactions', '_view', 'log') - response = res.get_json() - return map(lambda row: (row['id'], row['value']), response[2]['rows']) + ddoc_path = ['_design', 'transactions', '_view', 'log'] + res = self._database.resource(*ddoc_path) + try: + response = res.get_json() + return map( + lambda row: (row['id'], row['value']), + response[2]['rows']) + except ResourceNotFound as e: + raise_missing_design_doc_error(e, ddoc_path) def _get_doc(self, doc_id, check_for_conflicts=False): """ @@ -472,6 +618,19 @@ class CouchDatabase(CommonBackend): :raise RevisionConflict: Raised when trying to update a document but couch revisions mismatch. + :raise MissingDesignDocError: Raised when tried to access a missing + design document. + :raise MissingDesignDocListFunctionError: Raised when trying to access + a missing list function on a + design document. + :raise MissingDesignDocNamedViewError: Raised when trying to access a + missing named view on a design + document. + :raise MissingDesignDocDeletedError: Raised when trying to access a + deleted design document. + :raise MissingDesignDocUnknownError: Raised when failed to access a + design document for an yet + unknown reason. """ trans_id = self._allocate_transaction_id() # encode content @@ -489,26 +648,29 @@ class CouchDatabase(CommonBackend): doc.get_conflicts())) )[:-1] # exclude \n # perform the request - resource = self._database.resource( - '_design', 'docs', '_update', 'put', doc.doc_id) - response = resource.put_json( - body={ - 'couch_rev': old_doc.couch_rev - if old_doc is not None else None, - 'u1db_rev': doc.rev, - 'content': content, - 'trans_id': trans_id, - 'conflicts': conflicts, - 'update_conflicts': update_conflicts, - }, - headers={'content-type': 'application/json'}) - # the document might have been updated in between, so we check for the - # return message - msg = response[2].read() - if msg == 'ok': - return - elif msg == 'revision conflict': - raise errors.RevisionConflict() + ddoc_path = ['_design', 'docs', '_update', 'put', doc.doc_id] + resource = self._database.resource(*ddoc_path) + try: + response = resource.put_json( + body={ + 'couch_rev': old_doc.couch_rev + if old_doc is not None else None, + 'u1db_rev': doc.rev, + 'content': content, + 'trans_id': trans_id, + 'conflicts': conflicts, + 'update_conflicts': update_conflicts, + }, + headers={'content-type': 'application/json'}) + # the document might have been updated in between, so we check for + # the return message + msg = response[2].read() + if msg == 'ok': + return + elif msg == 'revision conflict': + raise RevisionConflict() + except ResourceNotFound as e: + raise_missing_design_doc_error(e, ddoc_path) def put_doc(self, doc): """ @@ -522,26 +684,26 @@ class CouchDatabase(CommonBackend): :return: new_doc_rev - The new revision identifier for the document. The Document object will also be updated. - :raise errors.InvalidDocId: Raised if the document's id is invalid. - :raise errors.DocumentTooBig: Raised if the document size is too big. - :raise errors.ConflictedDoc: Raised if the document has conflicts. + :raise InvalidDocId: Raised if the document's id is invalid. + :raise DocumentTooBig: Raised if the document size is too big. + :raise ConflictedDoc: Raised if the document has conflicts. """ if doc.doc_id is None: - raise errors.InvalidDocId() + raise InvalidDocId() self._check_doc_id(doc.doc_id) self._check_doc_size(doc) old_doc = self._get_doc(doc.doc_id, check_for_conflicts=True) if old_doc and old_doc.has_conflicts: - raise errors.ConflictedDoc() + raise ConflictedDoc() if old_doc and doc.rev is None and old_doc.is_tombstone(): new_rev = self._allocate_doc_rev(old_doc.rev) else: if old_doc is not None: if old_doc.rev != doc.rev: - raise errors.RevisionConflict() + raise RevisionConflict() else: if doc.rev is not None: - raise errors.RevisionConflict() + raise RevisionConflict() new_rev = self._allocate_doc_rev(doc.rev) doc.rev = new_rev self._put_doc(old_doc, doc) @@ -563,32 +725,53 @@ class CouchDatabase(CommonBackend): to the last intervening change and sorted by generation (old changes first) :rtype: (int, str, [(str, int, str)]) + + :raise MissingDesignDocError: Raised when tried to access a missing + design document. + :raise MissingDesignDocListFunctionError: Raised when trying to access + a missing list function on a + design document. + :raise MissingDesignDocNamedViewError: Raised when trying to access a + missing named view on a design + document. + :raise MissingDesignDocDeletedError: Raised when trying to access a + deleted design document. + :raise MissingDesignDocUnknownError: Raised when failed to access a + design document for an yet + unknown reason. """ # query a couch list function - res = self._database.resource( - '_design', 'transactions', '_list', 'whats_changed', 'log') - response = res.get_json(old_gen=old_generation) - results = map( - lambda row: - (row['generation'], row['doc_id'], row['transaction_id']), - response[2]['transactions']) - results.reverse() - cur_gen = old_generation - seen = set() - changes = [] - newest_trans_id = '' - for generation, doc_id, trans_id in results: - if doc_id not in seen: - changes.append((doc_id, generation, trans_id)) - seen.add(doc_id) - if changes: - cur_gen = changes[0][1] # max generation - newest_trans_id = changes[0][2] - changes.reverse() - else: - cur_gen, newest_trans_id = self._get_generation_info() + ddoc_path = [ + '_design', 'transactions', '_list', 'whats_changed', 'log' + ] + res = self._database.resource(*ddoc_path) + try: + response = res.get_json(old_gen=old_generation) + results = map( + lambda row: + (row['generation'], row['doc_id'], row['transaction_id']), + response[2]['transactions']) + results.reverse() + cur_gen = old_generation + seen = set() + changes = [] + newest_trans_id = '' + for generation, doc_id, trans_id in results: + if doc_id not in seen: + changes.append((doc_id, generation, trans_id)) + seen.add(doc_id) + if changes: + cur_gen = changes[0][1] # max generation + newest_trans_id = changes[0][2] + changes.reverse() + else: + cur_gen, newest_trans_id = self._get_generation_info() - return cur_gen, newest_trans_id, changes + return cur_gen, newest_trans_id, changes + except ResourceNotFound as e: + raise_missing_design_doc_error(e, ddoc_path) + except ServerError as e: + raise_server_error(e, ddoc_path) def delete_doc(self, doc): """ @@ -600,22 +783,22 @@ class CouchDatabase(CommonBackend): :param doc: The document to mark as deleted. :type doc: CouchDocument. - :raise errors.DocumentDoesNotExist: Raised if the document does not + :raise DocumentDoesNotExist: Raised if the document does not exist. - :raise errors.RevisionConflict: Raised if the revisions do not match. - :raise errors.DocumentAlreadyDeleted: Raised if the document is + :raise RevisionConflict: Raised if the revisions do not match. + :raise DocumentAlreadyDeleted: Raised if the document is already deleted. - :raise errors.ConflictedDoc: Raised if the doc has conflicts. + :raise ConflictedDoc: Raised if the doc has conflicts. """ old_doc = self._get_doc(doc.doc_id, check_for_conflicts=True) if old_doc is None: - raise errors.DocumentDoesNotExist + raise DocumentDoesNotExist if old_doc.rev != doc.rev: - raise errors.RevisionConflict() + raise RevisionConflict() if old_doc.is_tombstone(): - raise errors.DocumentAlreadyDeleted + raise DocumentAlreadyDeleted if old_doc.has_conflicts: - raise errors.ConflictedDoc() + raise ConflictedDoc() new_rev = self._allocate_doc_rev(doc.rev) doc.rev = new_rev doc.make_tombstone() @@ -737,17 +920,34 @@ class CouchDatabase(CommonBackend): :param other_transaction_id: The transaction id associated with the generation. :type other_transaction_id: str + + :raise MissingDesignDocError: Raised when tried to access a missing + design document. + :raise MissingDesignDocListFunctionError: Raised when trying to access + a missing list function on a + design document. + :raise MissingDesignDocNamedViewError: Raised when trying to access a + missing named view on a design + document. + :raise MissingDesignDocDeletedError: Raised when trying to access a + deleted design document. + :raise MissingDesignDocUnknownError: Raised when failed to access a + design document for an yet + unknown reason. """ # query a couch update function - res = self._database.resource( - '_design', 'syncs', '_update', 'put', 'u1db_sync_log') - res.put_json( - body={ - 'other_replica_uid': other_replica_uid, - 'other_generation': other_generation, - 'other_transaction_id': other_transaction_id, - }, - headers={'content-type': 'application/json'}) + ddoc_path = ['_design', 'syncs', '_update', 'put', 'u1db_sync_log'] + res = self._database.resource(*ddoc_path) + try: + res.put_json( + body={ + 'other_replica_uid': other_replica_uid, + 'other_generation': other_generation, + 'other_transaction_id': other_transaction_id, + }, + headers={'content-type': 'application/json'}) + except ResourceNotFound as e: + raise_missing_design_doc_error(e, ddoc_path) def _add_conflict(self, doc, my_doc_rev, my_content): """ @@ -774,7 +974,7 @@ class CouchDatabase(CommonBackend): """ Delete the conflicted revisions from the list of conflicts of C{doc}. - Note that thie method does not actually update the backed; rather, it + Note that this method does not actually update the backend; rather, it updates the CouchDocument object which will provide the conflict data when the atomic document update is made. @@ -842,6 +1042,20 @@ class CouchDatabase(CommonBackend): :param conflicted_doc_revs: A list of revisions that the new content supersedes. :type conflicted_doc_revs: [str] + + :raise MissingDesignDocError: Raised when tried to access a missing + design document. + :raise MissingDesignDocListFunctionError: Raised when trying to access + a missing list function on a + design document. + :raise MissingDesignDocNamedViewError: Raised when trying to access a + missing named view on a design + document. + :raise MissingDesignDocDeletedError: Raised when trying to access a + deleted design document. + :raise MissingDesignDocUnknownError: Raised when failed to access a + design document for an yet + unknown reason. """ cur_doc = self._get_doc(doc.doc_id, check_for_conflicts=True) new_rev = self._ensure_maximal_rev(cur_doc.rev, @@ -855,8 +1069,10 @@ class CouchDatabase(CommonBackend): self._add_conflict(doc, new_rev, doc.get_json()) self._delete_conflicts(doc, superseded_revs) # perform request to resolve document in server - resource = self._database.resource( - '_design', 'docs', '_update', 'resolve_doc', doc.doc_id) + ddoc_path = [ + '_design', 'docs', '_update', 'resolve_doc', doc.doc_id + ] + resource = self._database.resource(*ddoc_path) conflicts = None if doc.has_conflicts: conflicts = binascii.b2a_base64( @@ -864,12 +1080,15 @@ class CouchDatabase(CommonBackend): map(lambda cdoc: (cdoc.rev, cdoc.content), doc.get_conflicts())) )[:-1] # exclude \n - response = resource.put_json( - body={ - 'couch_rev': cur_doc.couch_rev, - 'conflicts': conflicts, - }, - headers={'content-type': 'application/json'}) + try: + response = resource.put_json( + body={ + 'couch_rev': cur_doc.couch_rev, + 'conflicts': conflicts, + }, + headers={'content-type': 'application/json'}) + except ResourceNotFound as e: + raise_missing_design_doc_error(e, ddoc_path) def _put_doc_if_newer(self, doc, save_conflict, replica_uid, replica_gen, replica_trans_id=''): diff --git a/common/src/leap/soledad/common/errors.py b/common/src/leap/soledad/common/errors.py index c41e0b0f..f241ee06 100644 --- a/common/src/leap/soledad/common/errors.py +++ b/common/src/leap/soledad/common/errors.py @@ -25,11 +25,17 @@ from u1db import errors from u1db.remote import http_errors +class SoledadError(errors.U1DBError): + """ + Base Soledad HTTP errors. + """ + pass + # -# LockResource: a lock based on a document in the shared database. +# LockResource errors # -class InvalidTokenError(errors.U1DBError): +class InvalidTokenError(SoledadError): """ Exception raised when trying to unlock shared database with invalid token. """ @@ -38,7 +44,7 @@ class InvalidTokenError(errors.U1DBError): status = 401 -class NotLockedError(errors.U1DBError): +class NotLockedError(SoledadError): """ Exception raised when trying to unlock shared database when it is not locked. @@ -48,7 +54,7 @@ class NotLockedError(errors.U1DBError): status = 404 -class AlreadyLockedError(errors.U1DBError): +class AlreadyLockedError(SoledadError): """ Exception raised when trying to lock shared database but it is already locked. @@ -58,7 +64,7 @@ class AlreadyLockedError(errors.U1DBError): status = 403 -class LockTimedOutError(errors.U1DBError): +class LockTimedOutError(SoledadError): """ Exception raised when timing out while trying to lock the shared database. """ @@ -67,7 +73,7 @@ class LockTimedOutError(errors.U1DBError): status = 408 -class CouldNotObtainLockError(errors.U1DBError): +class CouldNotObtainLockError(SoledadError): """ Exception raised when timing out while trying to lock the shared database. """ @@ -76,10 +82,64 @@ class CouldNotObtainLockError(errors.U1DBError): status = 500 +# +# CouchDatabase errors +# + +class MissingDesignDocError(SoledadError): + """ + Raised when trying to access a missing couch design document. + """ + + wire_description = "missing design document" + status = 500 + + +class MissingDesignDocNamedViewError(SoledadError): + """ + Raised when trying to access a missing named view on a couch design + document. + """ + + wire_description = "missing design document named function" + status = 500 + + +class MissingDesignDocListFunctionError(SoledadError): + """ + Raised when trying to access a missing list function on a couch design + document. + """ + + wire_description = "missing design document list function" + status = 500 + + +class MissingDesignDocDeletedError(SoledadError): + """ + Raised when trying to access a deleted couch design document. + """ + + wire_description = "design document was deleted" + status = 500 + + +class DesignDocUnknownError(SoledadError): + """ + Raised when trying to access a couch design document and getting an + unknown error. + """ + + wire_description = "missing design document unknown error" + status = 500 + + # update u1db "wire description to status" and "wire description to exception" # maps. for e in [InvalidTokenError, NotLockedError, AlreadyLockedError, - LockTimedOutError, CouldNotObtainLockError]: + LockTimedOutError, CouldNotObtainLockError, MissingDesignDocError, + MissingDesignDocListFunctionError, MissingDesignDocNamedViewError, + MissingDesignDocDeletedError, DesignDocUnknownError]: http_errors.wire_description_to_status.update({ e.wire_description: e.status}) errors.wire_description_to_exc.update({ diff --git a/common/src/leap/soledad/common/tests/test_couch.py b/common/src/leap/soledad/common/tests/test_couch.py index 72346333..0e07575d 100644 --- a/common/src/leap/soledad/common/tests/test_couch.py +++ b/common/src/leap/soledad/common/tests/test_couch.py @@ -24,16 +24,17 @@ import re import copy import shutil from base64 import b64decode +from mock import Mock from couchdb.client import Server -from u1db import errors +from u1db import errors as u1db_errors from leap.common.files import mkdir_p from leap.soledad.common.tests import u1db_tests as tests from leap.soledad.common.tests.u1db_tests import test_backends from leap.soledad.common.tests.u1db_tests import test_sync -from leap.soledad.common import couch +from leap.soledad.common import couch, errors import simplejson as json @@ -356,7 +357,7 @@ class IndexedCouchDatabase(couch.CouchDatabase): def __init__(self, url, dbname, replica_uid=None, full_commit=True, session=None, ensure_ddocs=True): old_class.__init__(self, url, dbname, replica_uid, full_commit, - session, ensure_ddocs=True) + session, ensure_ddocs=ensure_ddocs) self._indexes = {} def _put_doc(self, old_doc, doc): @@ -372,7 +373,7 @@ class IndexedCouchDatabase(couch.CouchDatabase): if self._indexes[index_name]._definition == list( index_expressions): return - raise errors.IndexNameTakenError + raise u1db_errors.IndexNameTakenError index = InMemoryIndex(index_name, list(index_expressions)) _, all_docs = self.get_all_docs() for doc in all_docs: @@ -392,7 +393,7 @@ class IndexedCouchDatabase(couch.CouchDatabase): try: index = self._indexes[index_name] except KeyError: - raise errors.IndexDoesNotExist + raise u1db_errors.IndexDoesNotExist doc_ids = index.lookup(key_values) result = [] for doc_id in doc_ids: @@ -405,7 +406,7 @@ class IndexedCouchDatabase(couch.CouchDatabase): try: index = self._indexes[index_name] except KeyError: - raise errors.IndexDoesNotExist + raise u1db_errors.IndexDoesNotExist if isinstance(start_value, basestring): start_value = (start_value,) if isinstance(end_value, basestring): @@ -420,7 +421,7 @@ class IndexedCouchDatabase(couch.CouchDatabase): try: index = self._indexes[index_name] except KeyError: - raise errors.IndexDoesNotExist + raise u1db_errors.IndexDoesNotExist keys = index.keys() # XXX inefficiency warning return list(set([tuple(key.split('\x01')) for key in keys])) @@ -461,4 +462,208 @@ class CouchDatabaseSyncTests(test_sync.DatabaseSyncTests, CouchDBTestCase): test_sync.DatabaseSyncTests.tearDown(self) +class CouchDatabaseExceptionsTests(CouchDBTestCase): + + def setUp(self): + CouchDBTestCase.setUp(self) + self.db = couch.CouchDatabase( + 'http://127.0.0.1:%d' % self.wrapper.port, 'test', + ensure_ddocs=False) # note that we don't enforce ddocs here + + def tearDown(self): + self.db.delete_database() + + def test_missing_design_doc_raises(self): + """ + Test that all methods that access design documents will raise if the + design docs are not present. + """ + # _get_generation() + self.assertRaises( + errors.MissingDesignDocError, + self.db._get_generation) + # _get_generation_info() + self.assertRaises( + errors.MissingDesignDocError, + self.db._get_generation_info) + # _get_trans_id_for_gen() + self.assertRaises( + errors.MissingDesignDocError, + self.db._get_trans_id_for_gen, 1) + # _get_transaction_log() + self.assertRaises( + errors.MissingDesignDocError, + self.db._get_transaction_log) + # create_doc() + self.assertRaises( + errors.MissingDesignDocError, + self.db.create_doc, {}) + # whats_changed() + self.assertRaises( + errors.MissingDesignDocError, + self.db.whats_changed) + # _do_set_replica_gen_and_trans_id() + self.assertRaises( + errors.MissingDesignDocError, + self.db._do_set_replica_gen_and_trans_id, 1, 2, 3) + # fake a conflict so we can test resolve_doc() + first_rev = self.db._allocate_doc_rev(None) + doc = couch.CouchDocument( + doc_id='mydoc', rev=self.db._allocate_doc_rev(first_rev)) + self.db._get_doc = Mock(return_value=doc) + self.assertRaises( + errors.MissingDesignDocError, + self.db.resolve_doc, doc, [first_rev]) + + def test_missing_design_doc_functions_raises(self): + """ + Test that all methods that access design documents list functions + will raise if the functions are not present. + """ + self.db = couch.CouchDatabase( + 'http://127.0.0.1:%d' % self.wrapper.port, 'test', + ensure_ddocs=True) + # erase views from _design/transactions + transactions = self.db._database['_design/transactions'] + transactions['lists'] = {} + self.db._database.save(transactions) + # _get_generation() + self.assertRaises( + errors.MissingDesignDocListFunctionError, + self.db._get_generation) + # _get_generation_info() + self.assertRaises( + errors.MissingDesignDocListFunctionError, + self.db._get_generation_info) + # _get_trans_id_for_gen() + self.assertRaises( + errors.MissingDesignDocListFunctionError, + self.db._get_trans_id_for_gen, 1) + # whats_changed() + self.assertRaises( + errors.MissingDesignDocListFunctionError, + self.db.whats_changed) + + def test_absent_design_doc_functions_raises(self): + """ + Test that all methods that access design documents list functions + will raise if the functions are not present. + """ + self.db = couch.CouchDatabase( + 'http://127.0.0.1:%d' % self.wrapper.port, 'test', + ensure_ddocs=True) + # erase views from _design/transactions + transactions = self.db._database['_design/transactions'] + del transactions['lists'] + self.db._database.save(transactions) + # _get_generation() + self.assertRaises( + errors.MissingDesignDocListFunctionError, + self.db._get_generation) + # _get_generation_info() + self.assertRaises( + errors.MissingDesignDocListFunctionError, + self.db._get_generation_info) + # _get_trans_id_for_gen() + self.assertRaises( + errors.MissingDesignDocListFunctionError, + self.db._get_trans_id_for_gen, 1) + # whats_changed() + self.assertRaises( + errors.MissingDesignDocListFunctionError, + self.db.whats_changed) + + def test_missing_design_doc_named_views_raises(self): + """ + Test that all methods that access design documents' named views will + raise if the views are not present. + """ + self.db = couch.CouchDatabase( + 'http://127.0.0.1:%d' % self.wrapper.port, 'test', + ensure_ddocs=True) + # erase views from _design/docs + docs = self.db._database['_design/docs'] + del docs['views'] + self.db._database.save(docs) + # erase views from _design/syncs + syncs = self.db._database['_design/syncs'] + del syncs['views'] + self.db._database.save(syncs) + # erase views from _design/transactions + transactions = self.db._database['_design/transactions'] + del transactions['views'] + self.db._database.save(transactions) + # _get_generation() + self.assertRaises( + errors.MissingDesignDocNamedViewError, + self.db._get_generation) + # _get_generation_info() + self.assertRaises( + errors.MissingDesignDocNamedViewError, + self.db._get_generation_info) + # _get_trans_id_for_gen() + self.assertRaises( + errors.MissingDesignDocNamedViewError, + self.db._get_trans_id_for_gen, 1) + # _get_transaction_log() + self.assertRaises( + errors.MissingDesignDocNamedViewError, + self.db._get_transaction_log) + # whats_changed() + self.assertRaises( + errors.MissingDesignDocNamedViewError, + self.db.whats_changed) + + def test_deleted_design_doc_raises(self): + """ + Test that all methods that access design documents will raise if the + design docs are not present. + """ + self.db = couch.CouchDatabase( + 'http://127.0.0.1:%d' % self.wrapper.port, 'test', + ensure_ddocs=True) + # delete _design/docs + del self.db._database['_design/docs'] + # delete _design/syncs + del self.db._database['_design/syncs'] + # delete _design/transactions + del self.db._database['_design/transactions'] + # _get_generation() + self.assertRaises( + errors.MissingDesignDocDeletedError, + self.db._get_generation) + # _get_generation_info() + self.assertRaises( + errors.MissingDesignDocDeletedError, + self.db._get_generation_info) + # _get_trans_id_for_gen() + self.assertRaises( + errors.MissingDesignDocDeletedError, + self.db._get_trans_id_for_gen, 1) + # _get_transaction_log() + self.assertRaises( + errors.MissingDesignDocDeletedError, + self.db._get_transaction_log) + # create_doc() + self.assertRaises( + errors.MissingDesignDocDeletedError, + self.db.create_doc, {}) + # whats_changed() + self.assertRaises( + errors.MissingDesignDocDeletedError, + self.db.whats_changed) + # _do_set_replica_gen_and_trans_id() + self.assertRaises( + errors.MissingDesignDocDeletedError, + self.db._do_set_replica_gen_and_trans_id, 1, 2, 3) + # fake a conflict so we can test resolve_doc() + first_rev = self.db._allocate_doc_rev(None) + doc = couch.CouchDocument( + doc_id='mydoc', rev=self.db._allocate_doc_rev(first_rev)) + self.db._get_doc = Mock(return_value=doc) + self.assertRaises( + errors.MissingDesignDocDeletedError, + self.db.resolve_doc, doc, [first_rev]) + + load_tests = tests.load_with_scenarios diff --git a/server/changes/feature_4994-catch-resource-not-found-when-accessing-design-docs b/server/changes/feature_4994-catch-resource-not-found-when-accessing-design-docs new file mode 100644 index 00000000..f37a8c18 --- /dev/null +++ b/server/changes/feature_4994-catch-resource-not-found-when-accessing-design-docs @@ -0,0 +1,3 @@ + o Catch couchdb.http.ResourceNotFound exceptions when accessing design + documents on couch backend, and raise appropriate missing design documents + exceptions. Fixes #4994. |