def user_queue(self, request):
""" Return queue info for the user, creating if necessary
(queues hold subscriptions)
@method POST
@param request Request object containing "Credentials"
where credentials meet the proper authorization
module requirements. (e.g. for basic auth, use
'username' & 'password', for BrowserID pass
Users have Queues.
Queues hold subscriptions.
Subscriptions hold messages.
If a username already has a queue, return that information, otherwise
create the new queue and return the new info.
"""
self._init(self.app.config)
username = self._get_uid(request)
#TODO: Authenticate the user using the backend auth.
try:
result = self.msg_backend.create_client_queue(username)
return json_response(result)
except Exception, e:
logger.error("Error creating client queue %s" % str(e))
raise HTTPInternalServerError
def get_quota(self, request):
user_id = request.user['userid']
used = self._get_storage(request).get_total_size(user_id)
if not self._get_storage(request).use_quota:
limit = None
else:
limit = self._get_storage(request).quota_size
return json_response((used, limit))
def delete_storage(self, request):
"""Deletes all records for the user.
Will return a precondition error unless an X-Confirm-Delete header
is included.
"""
if 'X-Confirm-Delete' not in request.headers:
raise HTTPJsonBadRequest(WEAVE_INVALID_WRITE)
user_id = request.user['userid']
self._get_storage(request).delete_storage(user_id) # XXX failures ?
return json_response(request.server_time)
def get_item(self, request, full=True): # always full
"""Returns a single WBO object."""
collection_name = request.sync_info['collection']
item_id = request.sync_info['item']
user_id = request.user['userid']
fields = _WBO_FIELDS
storage = self._get_storage(request)
res = storage.get_item(user_id, collection_name, item_id,
fields=fields)
if res is None:
raise HTTPNotFound()
return json_response(res)
def new_token(self, request):
""" Create an return a new valid token
@method GET
@params None
Returns a string containing the new token.
"""
self._init(self.app.config)
try:
token = new_token()
return json_response(token)
except Exception, e:
logger.error("Error generating token %s" % str(e))
raise HTTPInternalServerError
def set_item(self, request):
"""Sets a single WBO object."""
storage = self._get_storage(request)
if storage.use_quota:
left = self._check_quota(request)
else:
left = 0.
user_id = request.user['userid']
collection_name = request.sync_info['collection']
item_id = request.sync_info['item']
if self._was_modified(request, user_id, collection_name):
raise HTTPPreconditionFailed(collection_name)
try:
data = json.loads(request.body)
except ValueError:
raise HTTPJsonBadRequest(WEAVE_MALFORMED_JSON)
try:
wbo = WBO(data)
except ValueError:
raise HTTPJsonBadRequest(WEAVE_INVALID_WBO)
consistent, msg = wbo.validate()
if not consistent:
raise HTTPJsonBadRequest(WEAVE_INVALID_WBO)
if self._has_modifiers(wbo):
wbo['modified'] = request.server_time
try:
res = storage.set_item(user_id, collection_name, item_id,
storage_time=request.server_time, **wbo)
except StorageConflictError:
raise HTTPJsonBadRequest(WEAVE_INVALID_WRITE)
response = json_response(res)
if storage.use_quota and left <= _ONE_MEG:
response.headers['X-Weave-Quota-Remaining'] = str(left)
return response
def delete_collection(self, request, **kw):
"""Deletes the collection and all contents.
Additional request parameters may modify the selection of which
items to delete.
"""
kw = self._convert_args(kw)
collection_name = request.sync_info['collection']
user_id = request.user['userid']
if self._was_modified(request, user_id, collection_name):
raise HTTPPreconditionFailed(collection_name)
self._get_storage(request).delete_items(user_id,
collection_name,
kw.get('ids'), kw['filters'],
limit=kw.get('limit'),
offset=kw.get('offset'),
sort=kw.get('sort'),
storage_time=request.server_time)
return json_response(request.server_time)
def delete_item(self, request):
"""Deletes a single WBO object."""
collection_name = request.sync_info['collection']
item_id = request.sync_info['item']
user_id = request.user['userid']
if self._was_modified(request, user_id, collection_name):
raise HTTPPreconditionFailed(collection_name)
self._get_storage(request).delete_item(user_id, collection_name,
item_id,
storage_time=request.server_time)
# Not logging this event for now. Infrasec may want it again in future
#
#if collection_name == 'crypto' and item_id == 'keys':
# msg = 'Crypto keys deleted'
# username = request.user['username']
# log_cef(msg, 5, request.environ, self.app.config, username)
return json_response(request.server_time)
def test_response_conversions(self):
data = {'some': 'data'}
resp = text_response(data)
self.assertEquals(resp.body, "{'some': 'data'}")
self.assertEquals(resp.content_type, 'text/plain')
data = "abc"
resp = whoisi_response(data)
self.assertEquals(
resp.body,
'\x00\x00\x00\x03"a"\x00\x00\x00\x03"b"\x00\x00\x00\x03"c"')
self.assertEquals(resp.content_type, 'application/whoisi')
request = Request({})
request.accept = 'application/whoisi'
resp = convert_response(request, data)
self.assertEquals(
resp.body,
'\x00\x00\x00\x03"a"\x00\x00\x00\x03"b"\x00\x00\x00\x03"c"')
self.assertEquals(resp.content_type, 'application/whoisi')
resp = newlines_response(data)
self.assertEquals(resp.body, '"a"\n"b"\n"c"\n')
self.assertEquals(resp.content_type, 'application/newlines')
request = Request({})
request.accept = 'application/newlines'
resp = convert_response(request, data)
self.assertEquals(resp.body, '"a"\n"b"\n"c"\n')
self.assertEquals(resp.content_type, 'application/newlines')
data = {'some': 'data'}
resp = json_response(data)
self.assertEquals(resp.body, '{"some": "data"}')
self.assertEquals(resp.content_type, 'application/json')
request = Request({})
resp = convert_response(request, data)
self.assertEquals(resp.body, '{"some": "data"}')
self.assertEquals(resp.content_type, 'application/json')
def test_response_conversions(self):
data = {'some': 'data'}
resp = text_response(data)
self.assertEquals(resp.body, "{'some': 'data'}")
self.assertEquals(resp.content_type, 'text/plain')
data = "abc"
resp = whoisi_response(data)
self.assertEquals(resp.body,
'\x00\x00\x00\x03"a"\x00\x00\x00\x03"b"\x00\x00\x00\x03"c"')
self.assertEquals(resp.content_type, 'application/whoisi')
request = Request({})
request.accept = 'application/whoisi'
resp = convert_response(request, data)
self.assertEquals(resp.body,
'\x00\x00\x00\x03"a"\x00\x00\x00\x03"b"\x00\x00\x00\x03"c"')
self.assertEquals(resp.content_type, 'application/whoisi')
resp = newlines_response(data)
self.assertEquals(resp.body, '"a"\n"b"\n"c"\n')
self.assertEquals(resp.content_type, 'application/newlines')
request = Request({})
request.accept = 'application/newlines'
resp = convert_response(request, data)
self.assertEquals(resp.body, '"a"\n"b"\n"c"\n')
self.assertEquals(resp.content_type, 'application/newlines')
data = {'some': 'data'}
resp = json_response(data)
self.assertEquals(resp.body, '{"some": "data"}')
self.assertEquals(resp.content_type, 'application/json')
request = Request({})
resp = convert_response(request, data)
self.assertEquals(resp.body, '{"some": "data"}')
self.assertEquals(resp.content_type, 'application/json')
def get_user_details(self, request, **kw):
"""Returns a JSON blob of account details for the current user."""
return json_response({
'userid': request.user['userid'],
'syncNode': request.user['syncNode'],
})
return text_response(syncnode)
# Assign a new node using the backend.
# This assumes it will remember the assignment, and optimally that
# it will cache it in the user's syncNode property for our reference.
try:
new_node = self.nodes.get_best_node('sync', user=request.user)
except NodeAlreadyWrittenError, e:
new_node = e.node
except Exception:
self.logger.error(traceback.format_exc())
self.logger.error("Node assignment failed")
return json_response(None)
if new_node is None:
return json_response(None)
if new_node != "null":
if not new_node.startswith('http'):
new_node = 'https://' + new_node
if not new_node.endswith('/'):
new_node = new_node + '/'
return text_response(new_node)
def password_reset(self, request, **data):
"""Sends an e-mail for a password reset request."""
if self.reset is None:
self.logger.debug('reset attempted, but no resetcode library '
'installed')
raise HTTPServiceUnavailable()
def return_fallback(self):
if self.fallback_node is None:
return json_response(None)
return self.fallback_node
def get_user_details(self, request, **kw):
"""Returns a JSON blob of account details for the current user."""
return json_response({
'userid': request.user['userid'],
'syncNode': request.user['syncNode'],
})
def get_collection_usage(self, request):
user_id = request.user['userid']
storage = self._get_storage(request)
return json_response(storage.get_collection_sizes(user_id))
class StorageController(object):
def __init__(self, app):
self.app = app
self.logger = self.app.logger
self.batch_size = app.config.get('storage.batch_size', 100)
self.batch_max_count = app.config.get('storage.batch_max_count',
100)
self.batch_max_bytes = app.config.get('storage.batch_max_bytes',
1024 * 1024)
def _has_modifiers(self, data):
return 'payload' in data
def _get_storage(self, request):
return self.app.get_storage(request)
def _was_modified(self, request, user_id, collection_name):
"""Checks the X-If-Unmodified-Since header."""
unmodified = request.headers.get('X-If-Unmodified-Since')
if unmodified is None:
return False
unmodified = round_time(unmodified)
storage = self._get_storage(request)
max = storage.get_collection_max_timestamp(user_id,
collection_name)
if max is None:
return False
return max > unmodified
def get_storage(self, request):
# XXX returns a 400 if the root is called
raise HTTPBadRequest()
def get_collections(self, request, **metrics):
"""Returns a hash of collections associated with the account,
Along with the last modified timestamp for each collection
"""
# metrics are additional parameters used by the various clients
# to mark the logs for stats. We also want to send a CEF log when
# this happens
#
# Disabled for now, since CEF doesn't need them at the moment
#
#if metrics != {}:
# username = request.user['username']
# values = ['%s=%s' % (key, value)
# for key, value in metrics.items()]
# log_cef('Daily metric call', 5, request.environ, self.app.config,
# username=username, msg=','.join(values))
user_id = request.user['userid']
storage = self._get_storage(request)
collections = storage.get_collection_timestamps(user_id)
response = convert_response(request, collections)
response.headers['X-Weave-Records'] = str(len(collections))
return response
def get_collection_counts(self, request):
"""Returns a hash of collections associated with the account,
Along with the total number of items for each collection.
"""
user_id = request.user['userid']
counts = self._get_storage(request).get_collection_counts(user_id)
response = convert_response(request, counts)
response.headers['X-Weave-Records'] = str(len(counts))
return response
def get_quota(self, request):
user_id = request.user['userid']
used = self._get_storage(request).get_total_size(user_id)
if not self._get_storage(request).use_quota:
limit = None
else:
limit = self._get_storage(request).quota_size
return json_response((used, limit))
def get_collection_usage(self, request):
user_id = request.user['userid']
storage = self._get_storage(request)
return json_response(storage.get_collection_sizes(user_id))
def _convert_args(self, kw):
"""Converts incoming arguments for GET and DELETE on collections.
This function will also raise a 400 on bad args.
Unknown args are just dropped.
XXX see if we want to raise a 400 in that case
"""
args = {}
filters = {}
convert_name = {'older': 'modified',
'newer': 'modified',
'index_above': 'sortindex',
'index_below': 'sortindex'}
for arg in ('older', 'newer', 'index_above', 'index_below'):
value = kw.get(arg)
if value is None:
continue
try:
if arg in ('older', 'newer'):
value = round_time(value)
else:
value = float(value)
except ValueError:
raise HTTPBadRequest('Invalid value for "%s"' % arg)
if arg in ('older', 'index_below'):
filters[convert_name[arg]] = '<', value
else:
filters[convert_name[arg]] = '>', value
# convert limit and offset
limit = offset = None
for arg in ('limit', 'offset'):
value = kw.get(arg)
if value is None:
continue
try:
value = int(value)
except ValueError:
raise HTTPBadRequest('Invalid value for "%s"' % arg)
if arg == 'limit':
limit = value
else:
offset = value
# we can't have offset without limit
if limit is not None:
args['limit'] = limit
if offset is not None and limit is not None:
args['offset'] = offset
for arg in ('predecessorid', 'parentid'):
value = kw.get(arg)
if value is None:
continue
filters[arg] = '=', value
# XXX should we control id lengths ?
for arg in ('ids',):
value = kw.get(arg)
if value is None:
continue
filters['id'] = 'in', value.split(',')
sort = kw.get('sort')
if sort in ('oldest', 'newest', 'index'):
args['sort'] = sort
args['full'] = kw.get('full', False)
args['filters'] = filters
return args
def get_collection(self, request, **kw):
"""Returns a list of the WBO ids contained in a collection."""
kw = self._convert_args(kw)
collection_name = request.sync_info['collection']
user_id = request.user['userid']
full = kw['full']
if not full:
fields = ['id']
else:
fields = _WBO_FIELDS
storage = self._get_storage(request)
res = storage.get_items(user_id, collection_name, fields,
kw['filters'],
kw.get('limit'), kw.get('offset'),
kw.get('sort'))
if not full:
res = [line['id'] for line in res]
response = convert_response(request, res)
response.headers['X-Weave-Records'] = str(len(res))
return response
def get_item(self, request, full=True): # always full
"""Returns a single WBO object."""
collection_name = request.sync_info['collection']
item_id = request.sync_info['item']
user_id = request.user['userid']
fields = _WBO_FIELDS
storage = self._get_storage(request)
res = storage.get_item(user_id, collection_name, item_id,
fields=fields)
if res is None:
raise HTTPNotFound()
return json_response(res)
def _check_quota(self, request):
"""Checks the quota.
If under the treshold, adds a header
If the quota is reached, issues a 400
"""
user_id = request.user['userid']
storage = self._get_storage(request)
left = storage.get_size_left(user_id)
if left < _ONE_MEG:
left = storage.get_size_left(user_id, recalculate=True)
if left <= 0.: # no space left
raise HTTPJsonBadRequest(WEAVE_OVER_QUOTA)
return left
def set_item(self, request):
"""Sets a single WBO object."""
storage = self._get_storage(request)
if storage.use_quota:
left = self._check_quota(request)
else:
left = 0.
user_id = request.user['userid']
collection_name = request.sync_info['collection']
item_id = request.sync_info['item']
if self._was_modified(request, user_id, collection_name):
raise HTTPPreconditionFailed(collection_name)
try:
data = json.loads(request.body)
except ValueError:
raise HTTPJsonBadRequest(WEAVE_MALFORMED_JSON)
try:
wbo = WBO(data)
except ValueError:
raise HTTPJsonBadRequest(WEAVE_INVALID_WBO)
consistent, msg = wbo.validate()
if not consistent:
raise HTTPJsonBadRequest(WEAVE_INVALID_WBO)
if self._has_modifiers(wbo):
wbo['modified'] = request.server_time
try:
res = storage.set_item(user_id, collection_name, item_id,
storage_time=request.server_time, **wbo)
except StorageConflictError:
raise HTTPJsonBadRequest(WEAVE_INVALID_WRITE)
response = json_response(res)
if storage.use_quota and left <= _ONE_MEG:
response.headers['X-Weave-Quota-Remaining'] = str(left)
return response
def delete_item(self, request):
"""Deletes a single WBO object."""
collection_name = request.sync_info['collection']
item_id = request.sync_info['item']
user_id = request.user['userid']
if self._was_modified(request, user_id, collection_name):
raise HTTPPreconditionFailed(collection_name)
self._get_storage(request).delete_item(user_id, collection_name,
item_id,
storage_time=request.server_time)
# Not logging this event for now. Infrasec may want it again in future
#
#if collection_name == 'crypto' and item_id == 'keys':
# msg = 'Crypto keys deleted'
# username = request.user['username']
# log_cef(msg, 5, request.environ, self.app.config, username)
return json_response(request.server_time)
def set_collection(self, request):
"""Sets a batch of WBO objects into a collection."""
user_id = request.user['userid']
collection_name = request.sync_info['collection']
if self._was_modified(request, user_id, collection_name):
raise HTTPPreconditionFailed(collection_name)
try:
wbos = json.loads(request.body)
except ValueError:
raise HTTPJsonBadRequest(WEAVE_MALFORMED_JSON)
if not isinstance(wbos, (tuple, list)):
# thats a batch of one
try:
id_ = str(wbos['id'])
except (KeyError, TypeError):
raise HTTPJsonBadRequest(WEAVE_INVALID_WBO)
if '/' in id_:
raise HTTPJsonBadRequest(WEAVE_INVALID_WBO)
request.sync_info['item'] = id_
return self.set_item(request)
res = {'success': [], 'failed': {}}
# Sanity-check each of the WBOs.
# Limit the batch based on both count and payload size.
kept_wbos = []
total_bytes = 0
for count, wbo in enumerate(wbos):
try:
wbo = WBO(wbo)
except ValueError:
res['failed'][''] = ['invalid wbo']
continue
if 'id' not in wbo:
res['failed'][''] = ['invalid id']
continue
consistent, msg = wbo.validate()
item_id = wbo['id']
if not consistent:
res['failed'][item_id] = [msg]
continue
if count >= self.batch_max_count:
res['failed'][item_id] = ['retry wbo']
continue
if 'payload' in wbo:
total_bytes += len(wbo['payload'])
if total_bytes >= self.batch_max_bytes:
res['failed'][item_id] = ['retry bytes']
continue
if self._has_modifiers(wbo):
wbo['modified'] = request.server_time
kept_wbos.append(wbo)
storage = self._get_storage(request)
if storage.use_quota:
left = self._check_quota(request)
else:
left = 0.
storage_time = request.server_time
for wbos in batch(kept_wbos, size=self.batch_size):
wbos = list(wbos) # to avoid exhaustion
try:
storage.set_items(user_id, collection_name,
wbos, storage_time=storage_time)
except Exception, e: # we want to swallow the 503 in that case
# something went wrong
self.logger.error('Could not set items')
self.logger.error(str(e))
for wbo in wbos:
res['failed'][wbo['id']] = "db error"
else:
res['success'].extend([wbo['id'] for wbo in wbos])
res['modified'] = storage_time
response = json_response(res)
if storage.use_quota and left <= 1024:
response.headers['X-Weave-Quota-Remaining'] = str(left)
return response
def return_fallback(self):
if self.fallback_node is None:
return json_response(None)
return self.fallback_node
