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	* add test to check if null code points are being inserted * add logic to detect and replace null code points before insertion into db * lints * add license to test * change approach to null substitution * add type hint for SearchEntry * Add changelog entry Signed-off-by: H.Shay <shaysquared@gmail.com> * updated changelog * update chanelog message * remove duplicate changelog * Update synapse/storage/databases/main/events.py remove extra space Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com> * rename and move test file, update tests, delete old test file * fix typo in comments * update _find_highlights_in_postgres to replace null byte with space * replace null byte in sqlite search insertion * beef up and reorganize test for this pr * update changelog * add type hints and update docstring * check db engine directly vs using env variable * refactor tests to be less repetetive * move rplace logic into seperate function * requested changes * Fix typo. * Update synapse/storage/databases/main/search.py Co-authored-by: reivilibre <olivier@librepush.net> * Update changelog.d/10820.misc Co-authored-by: Aaron Raimist <aaron@raim.ist> Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com> Co-authored-by: reivilibre <olivier@librepush.net> Co-authored-by: Aaron Raimist <aaron@raim.ist>
		
			
				
	
	
		
			75 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			75 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
# Copyright 2021 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import synapse.rest.admin
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from synapse.rest.client import login, room
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from synapse.storage.engines import PostgresEngine
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from tests.unittest import HomeserverTestCase
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class NullByteInsertionTest(HomeserverTestCase):
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    servlets = [
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        synapse.rest.admin.register_servlets_for_client_rest_resource,
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        login.register_servlets,
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        room.register_servlets,
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    ]
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    def test_null_byte(self):
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        """
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        Postgres/SQLite don't like null bytes going into the search tables. Internally
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        we replace those with a space.
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        Ensure this doesn't break anything.
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        """
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        # Register a user and create a room, create some messages
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        self.register_user("alice", "password")
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        access_token = self.login("alice", "password")
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        room_id = self.helper.create_room_as("alice", tok=access_token)
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        # Send messages and ensure they don't cause an internal server
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        # error
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        for body in ["hi\u0000bob", "another message", "hi alice"]:
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            response = self.helper.send(room_id, body, tok=access_token)
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            self.assertIn("event_id", response)
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        # Check that search works for the message where the null byte was replaced
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        store = self.hs.get_datastore()
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        result = self.get_success(
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            store.search_msgs([room_id], "hi bob", ["content.body"])
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        )
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        self.assertEquals(result.get("count"), 1)
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        if isinstance(store.database_engine, PostgresEngine):
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            self.assertIn("hi", result.get("highlights"))
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            self.assertIn("bob", result.get("highlights"))
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        # Check that search works for an unrelated message
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        result = self.get_success(
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            store.search_msgs([room_id], "another", ["content.body"])
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        )
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        self.assertEquals(result.get("count"), 1)
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        if isinstance(store.database_engine, PostgresEngine):
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            self.assertIn("another", result.get("highlights"))
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        # Check that search works for a search term that overlaps with the message
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        # containing a null byte and an unrelated message.
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        result = self.get_success(store.search_msgs([room_id], "hi", ["content.body"]))
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        self.assertEquals(result.get("count"), 2)
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        result = self.get_success(
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            store.search_msgs([room_id], "hi alice", ["content.body"])
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        )
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        if isinstance(store.database_engine, PostgresEngine):
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            self.assertIn("alice", result.get("highlights"))
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