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Merge pull request #93 from matrix-org/application-services-exclusive

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Application services exclusive flag support
This commit is contained in:
Kegsay 2015-03-02 14:56:32 +00:00
commit 8ad024ea80
10 changed files with 215 additions and 69 deletions
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4
UPGRADE.rst
View file

@ -12,6 +12,10 @@ Servers which use captchas will need to add their public key to::
This is required in order to support registration fallback (typically used on
mobile devices).
The format of stored application services has changed in Synapse. You will need
to run ``python upgrade_appservice_db.py <database file path>`` to convert to
the new format.
Upgrading to v0.7.0
===================

54
scripts/upgrade_appservice_db.py Normal file
View file

@ -0,0 +1,54 @@
from synapse.storage import read_schema
import argparse
import json
import sqlite3
def do_other_deltas(cursor):
cursor.execute("PRAGMA user_version")
row = cursor.fetchone()
if row and row[0]:
user_version = row[0]
# Run every version since after the current version.
for v in range(user_version + 1, 10):
print "Running delta: %d" % (v,)
sql_script = read_schema("delta/v%d" % (v,))
cursor.executescript(sql_script)
def update_app_service_table(cur):
cur.execute("SELECT id, regex FROM application_services_regex")
for row in cur.fetchall():
try:
print "checking %s..." % row[0]
json.loads(row[1])
except ValueError:
# row isn't in json, make it so.
string_regex = row[1]
new_regex = json.dumps({
"regex": string_regex,
"exclusive": True
})
cur.execute(
"UPDATE application_services_regex SET regex=? WHERE id=?",
(new_regex, row[0])
)
def main(dbname):
con = sqlite3.connect(dbname)
cur = con.cursor()
do_other_deltas(cur)
update_app_service_table(cur)
cur.execute("PRAGMA user_version = 14")
cur.close()
con.commit()
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("database")
args = parser.parse_args()
main(args.database)

49
synapse/appservice/__init__.py
View file

@ -46,22 +46,34 @@ class ApplicationService(object):
def _check_namespaces(self, namespaces):
# Sanity check that it is of the form:
# {
# users: ["regex",...],
# aliases: ["regex",...],
# rooms: ["regex",...],
# users: [ {regex: "[A-z]+.*", exclusive: true}, ...],
# aliases: [ {regex: "[A-z]+.*", exclusive: true}, ...],
# rooms: [ {regex: "[A-z]+.*", exclusive: true}, ...],
# }
if not namespaces:
return None
for ns in ApplicationService.NS_LIST:
if ns not in namespaces:
namespaces[ns] = []
continue
if type(namespaces[ns]) != list:
raise ValueError("Bad namespace value for '%s'", ns)
for regex in namespaces[ns]:
if not isinstance(regex, basestring):
raise ValueError("Expected string regex for ns '%s'", ns)
raise ValueError("Bad namespace value for '%s'" % ns)
for regex_obj in namespaces[ns]:
if not isinstance(regex_obj, dict):
raise ValueError("Expected dict regex for ns '%s'" % ns)
if not isinstance(regex_obj.get("exclusive"), bool):
raise ValueError(
"Expected bool for 'exclusive' in ns '%s'" % ns
)
if not isinstance(regex_obj.get("regex"), basestring):
raise ValueError(
"Expected string for 'regex' in ns '%s'" % ns
)
return namespaces
def _matches_regex(self, test_string, namespace_key):
def _matches_regex(self, test_string, namespace_key, return_obj=False):
if not isinstance(test_string, basestring):
logger.error(
"Expected a string to test regex against, but got %s",
@ -69,11 +81,19 @@ class ApplicationService(object):
)
return False
for regex in self.namespaces[namespace_key]:
if re.match(regex, test_string):
for regex_obj in self.namespaces[namespace_key]:
if re.match(regex_obj["regex"], test_string):
if return_obj:
return regex_obj
return True
return False
def _is_exclusive(self, ns_key, test_string):
regex_obj = self._matches_regex(test_string, ns_key, return_obj=True)
if regex_obj:
return regex_obj["exclusive"]
return False
def _matches_user(self, event, member_list):
if (hasattr(event, "sender") and
self.is_interested_in_user(event.sender)):
@ -143,5 +163,14 @@ class ApplicationService(object):
def is_interested_in_room(self, room_id):
return self._matches_regex(room_id, ApplicationService.NS_ROOMS)
def is_exclusive_user(self, user_id):
return self._is_exclusive(ApplicationService.NS_USERS, user_id)
def is_exclusive_alias(self, alias):
return self._is_exclusive(ApplicationService.NS_ALIASES, alias)
def is_exclusive_room(self, room_id):
return self._is_exclusive(ApplicationService.NS_ROOMS, room_id)
def __str__(self):
return "ApplicationService: %s" % (self.__dict__,)

14
synapse/handlers/directory.py
View file

@ -232,13 +232,23 @@ class DirectoryHandler(BaseHandler):
@defer.inlineCallbacks
def can_modify_alias(self, alias, user_id=None):
# Any application service "interested" in an alias they are regexing on
# can modify the alias.
# Users can only modify the alias if ALL the interested services have
# non-exclusive locks on the alias (or there are no interested services)
services = yield self.store.get_app_services()
interested_services = [
s for s in services if s.is_interested_in_alias(alias.to_string())
]
for service in interested_services:
if user_id == service.sender:
# this user IS the app service
# this user IS the app service so they can do whatever they like
defer.returnValue(True)
return
defer.returnValue(len(interested_services) == 0)
elif service.is_exclusive_alias(alias.to_string()):
# another service has an exclusive lock on this alias.
defer.returnValue(False)
return
# either no interested services, or no service with an exclusive lock
defer.returnValue(True)

11
synapse/handlers/register.py
View file

@ -201,11 +201,12 @@ class RegistrationHandler(BaseHandler):
interested_services = [
s for s in services if s.is_interested_in_user(user_id)
]
if len(interested_services) > 0:
raise SynapseError(
400, "This user ID is reserved by an application service.",
errcode=Codes.EXCLUSIVE
)
for service in interested_services:
if service.is_exclusive_user(user_id):
raise SynapseError(
400, "This user ID is reserved by an application service.",
errcode=Codes.EXCLUSIVE
)
def _generate_token(self, user_id):
# urlsafe variant uses _ and - so use . as the separator and replace

35
synapse/rest/appservice/v1/register.py
View file

@ -48,18 +48,12 @@ class RegisterRestServlet(AppServiceRestServlet):
400, "Missed required keys: as_token(str) / url(str)."
)
namespaces = {
"users": [],
"rooms": [],
"aliases": []
}
if "namespaces" in params:
self._parse_namespace(namespaces, params["namespaces"], "users")
self._parse_namespace(namespaces, params["namespaces"], "rooms")
self._parse_namespace(namespaces, params["namespaces"], "aliases")
app_service = ApplicationService(as_token, as_url, namespaces)
try:
app_service = ApplicationService(
as_token, as_url, params["namespaces"]
)
except ValueError as e:
raise SynapseError(400, e.message)
app_service = yield self.handler.register(app_service)
hs_token = app_service.hs_token
@ -68,23 +62,6 @@ class RegisterRestServlet(AppServiceRestServlet):
"hs_token": hs_token
}))
def _parse_namespace(self, target_ns, origin_ns, ns):
if ns not in target_ns or ns not in origin_ns:
return # nothing to parse / map through to.
possible_regex_list = origin_ns[ns]
if not type(possible_regex_list) == list:
raise SynapseError(400, "Namespace %s isn't an array." % ns)
for regex in possible_regex_list:
if not isinstance(regex, basestring):
raise SynapseError(
400, "Regex '%s' isn't a string in namespace %s" %
(regex, ns)
)
target_ns[ns] = origin_ns[ns]
class UnregisterRestServlet(AppServiceRestServlet):
"""Handles AS registration with the home server.

2
synapse/storage/__init__.py
View file

@ -74,7 +74,7 @@ SCHEMAS = [
# Remember to update this number every time an incompatible change is made to
# database schema files, so the users will be informed on server restarts.
SCHEMA_VERSION = 13
SCHEMA_VERSION = 14
dir_path = os.path.abspath(os.path.dirname(__file__))

16
synapse/storage/appservice.py
View file

@ -13,6 +13,8 @@
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import simplejson
from simplejson import JSONDecodeError
from twisted.internet import defer
from synapse.api.constants import Membership
@ -25,12 +27,18 @@ from ._base import SQLBaseStore
logger = logging.getLogger(__name__)
def log_failure(failure):
logger.error("Failed to detect application services: %s", failure.value)
logger.error(failure.getTraceback())
class ApplicationServiceStore(SQLBaseStore):
def __init__(self, hs):
super(ApplicationServiceStore, self).__init__(hs)
self.services_cache = []
self.cache_defer = self._populate_cache()
self.cache_defer.addErrback(log_failure)
@defer.inlineCallbacks
def unregister_app_service(self, token):
@ -130,11 +138,11 @@ class ApplicationServiceStore(SQLBaseStore):
)
for (ns_int, ns_str) in enumerate(ApplicationService.NS_LIST):
if ns_str in service.namespaces:
for regex in service.namespaces[ns_str]:
for regex_obj in service.namespaces[ns_str]:
txn.execute(
"INSERT INTO application_services_regex("
"as_id, namespace, regex) values(?,?,?)",
(as_id, ns_int, regex)
(as_id, ns_int, simplejson.dumps(regex_obj))
)
return True
@ -311,10 +319,12 @@ class ApplicationServiceStore(SQLBaseStore):
try:
services[as_token]["namespaces"][
ApplicationService.NS_LIST[ns_int]].append(
res["regex"]
simplejson.loads(res["regex"])
)
except IndexError:
logger.error("Bad namespace enum '%s'. %s", ns_int, res)
except JSONDecodeError:
logger.error("Bad regex object '%s'", res["regex"])
# TODO get last successful txn id f.e. service
for service in services.values():

87
tests/appservice/test_appservice.py
View file

@ -18,6 +18,13 @@ from mock import Mock, PropertyMock
from tests import unittest
def _regex(regex, exclusive=True):
return {
"regex": regex,
"exclusive": exclusive
}
class ApplicationServiceTestCase(unittest.TestCase):
def setUp(self):
@ -36,21 +43,21 @@ class ApplicationServiceTestCase(unittest.TestCase):
def test_regex_user_id_prefix_match(self):
self.service.namespaces[ApplicationService.NS_USERS].append(
"@irc_.*"
_regex("@irc_.*")
)
self.event.sender = "@irc_foobar:matrix.org"
self.assertTrue(self.service.is_interested(self.event))
def test_regex_user_id_prefix_no_match(self):
self.service.namespaces[ApplicationService.NS_USERS].append(
"@irc_.*"
_regex("@irc_.*")
)
self.event.sender = "@someone_else:matrix.org"
self.assertFalse(self.service.is_interested(self.event))
def test_regex_room_member_is_checked(self):
self.service.namespaces[ApplicationService.NS_USERS].append(
"@irc_.*"
_regex("@irc_.*")
)
self.event.sender = "@someone_else:matrix.org"
self.event.type = "m.room.member"
@ -59,30 +66,78 @@ class ApplicationServiceTestCase(unittest.TestCase):
def test_regex_room_id_match(self):
self.service.namespaces[ApplicationService.NS_ROOMS].append(
"!some_prefix.*some_suffix:matrix.org"
_regex("!some_prefix.*some_suffix:matrix.org")
)
self.event.room_id = "!some_prefixs0m3th1nGsome_suffix:matrix.org"
self.assertTrue(self.service.is_interested(self.event))
def test_regex_room_id_no_match(self):
self.service.namespaces[ApplicationService.NS_ROOMS].append(
"!some_prefix.*some_suffix:matrix.org"
_regex("!some_prefix.*some_suffix:matrix.org")
)
self.event.room_id = "!XqBunHwQIXUiqCaoxq:matrix.org"
self.assertFalse(self.service.is_interested(self.event))
def test_regex_alias_match(self):
self.service.namespaces[ApplicationService.NS_ALIASES].append(
"#irc_.*:matrix.org"
_regex("#irc_.*:matrix.org")
)
self.assertTrue(self.service.is_interested(
self.event,
aliases_for_event=["#irc_foobar:matrix.org", "#athing:matrix.org"]
))
def test_non_exclusive_alias(self):
self.service.namespaces[ApplicationService.NS_ALIASES].append(
_regex("#irc_.*:matrix.org", exclusive=False)
)
self.assertFalse(self.service.is_exclusive_alias(
"#irc_foobar:matrix.org"
))
def test_non_exclusive_room(self):
self.service.namespaces[ApplicationService.NS_ROOMS].append(
_regex("!irc_.*:matrix.org", exclusive=False)
)
self.assertFalse(self.service.is_exclusive_room(
"!irc_foobar:matrix.org"
))
def test_non_exclusive_user(self):
self.service.namespaces[ApplicationService.NS_USERS].append(
_regex("@irc_.*:matrix.org", exclusive=False)
)
self.assertFalse(self.service.is_exclusive_user(
"@irc_foobar:matrix.org"
))
def test_exclusive_alias(self):
self.service.namespaces[ApplicationService.NS_ALIASES].append(
_regex("#irc_.*:matrix.org", exclusive=True)
)
self.assertTrue(self.service.is_exclusive_alias(
"#irc_foobar:matrix.org"
))
def test_exclusive_user(self):
self.service.namespaces[ApplicationService.NS_USERS].append(
_regex("@irc_.*:matrix.org", exclusive=True)
)
self.assertTrue(self.service.is_exclusive_user(
"@irc_foobar:matrix.org"
))
def test_exclusive_room(self):
self.service.namespaces[ApplicationService.NS_ROOMS].append(
_regex("!irc_.*:matrix.org", exclusive=True)
)
self.assertTrue(self.service.is_exclusive_room(
"!irc_foobar:matrix.org"
))
def test_regex_alias_no_match(self):
self.service.namespaces[ApplicationService.NS_ALIASES].append(
"#irc_.*:matrix.org"
_regex("#irc_.*:matrix.org")
)
self.assertFalse(self.service.is_interested(
self.event,
@ -91,10 +146,10 @@ class ApplicationServiceTestCase(unittest.TestCase):
def test_regex_multiple_matches(self):
self.service.namespaces[ApplicationService.NS_ALIASES].append(
"#irc_.*:matrix.org"
_regex("#irc_.*:matrix.org")
)
self.service.namespaces[ApplicationService.NS_USERS].append(
"@irc_.*"
_regex("@irc_.*")
)
self.event.sender = "@irc_foobar:matrix.org"
self.assertTrue(self.service.is_interested(
@ -104,10 +159,10 @@ class ApplicationServiceTestCase(unittest.TestCase):
def test_restrict_to_rooms(self):
self.service.namespaces[ApplicationService.NS_ROOMS].append(
"!flibble_.*:matrix.org"
_regex("!flibble_.*:matrix.org")
)
self.service.namespaces[ApplicationService.NS_USERS].append(
"@irc_.*"
_regex("@irc_.*")
)
self.event.sender = "@irc_foobar:matrix.org"
self.event.room_id = "!wibblewoo:matrix.org"
@ -118,10 +173,10 @@ class ApplicationServiceTestCase(unittest.TestCase):
def test_restrict_to_aliases(self):
self.service.namespaces[ApplicationService.NS_ALIASES].append(
"#xmpp_.*:matrix.org"
_regex("#xmpp_.*:matrix.org")
)
self.service.namespaces[ApplicationService.NS_USERS].append(
"@irc_.*"
_regex("@irc_.*")
)
self.event.sender = "@irc_foobar:matrix.org"
self.assertFalse(self.service.is_interested(
@ -132,10 +187,10 @@ class ApplicationServiceTestCase(unittest.TestCase):
def test_restrict_to_senders(self):
self.service.namespaces[ApplicationService.NS_ALIASES].append(
"#xmpp_.*:matrix.org"
_regex("#xmpp_.*:matrix.org")
)
self.service.namespaces[ApplicationService.NS_USERS].append(
"@irc_.*"
_regex("@irc_.*")
)
self.event.sender = "@xmpp_foobar:matrix.org"
self.assertFalse(self.service.is_interested(
@ -146,7 +201,7 @@ class ApplicationServiceTestCase(unittest.TestCase):
def test_member_list_match(self):
self.service.namespaces[ApplicationService.NS_USERS].append(
"@irc_.*"
_regex("@irc_.*")
)
join_list = [
Mock(

12
tests/storage/test_appservice.py
View file

@ -50,9 +50,15 @@ class ApplicationServiceStoreTestCase(unittest.TestCase):
def test_update_and_retrieval_of_service(self):
url = "https://matrix.org/appservices/foobar"
hs_token = "hstok"
user_regex = ["@foobar_.*:matrix.org"]
alias_regex = ["#foobar_.*:matrix.org"]
room_regex = []
user_regex = [
{"regex": "@foobar_.*:matrix.org", "exclusive": True}
]
alias_regex = [
{"regex": "#foobar_.*:matrix.org", "exclusive": False}
]
room_regex = [
]
service = ApplicationService(
url=url, hs_token=hs_token, token=self.as_token, namespaces={
ApplicationService.NS_USERS: user_regex,