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https://mau.dev/maunium/synapse.git
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b7ddece2a6
Run `isort`, `flake8` and `black` over the `contrib/` directory and `synctl` script. The latter was already being done in CI, but now the linting script does it too. Fixes https://github.com/matrix-org/synapse/issues/7910
145 lines
4.1 KiB
Python
145 lines
4.1 KiB
Python
# Copyright 2014-2016 OpenMarket Ltd
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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 argparse
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import cgi
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import datetime
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import json
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import sqlite3
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import pydot
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from synapse.events import FrozenEvent
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from synapse.util.frozenutils import unfreeze
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def make_graph(db_name, room_id, file_prefix, limit):
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conn = sqlite3.connect(db_name)
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sql = (
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"SELECT json FROM event_json as j "
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"INNER JOIN events as e ON e.event_id = j.event_id "
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"WHERE j.room_id = ?"
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)
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args = [room_id]
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if limit:
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sql += " ORDER BY topological_ordering DESC, stream_ordering DESC LIMIT ?"
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args.append(limit)
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c = conn.execute(sql, args)
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events = [FrozenEvent(json.loads(e[0])) for e in c.fetchall()]
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events.sort(key=lambda e: e.depth)
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node_map = {}
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state_groups = {}
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graph = pydot.Dot(graph_name="Test")
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for event in events:
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c = conn.execute(
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"SELECT state_group FROM event_to_state_groups WHERE event_id = ?",
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(event.event_id,),
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)
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res = c.fetchone()
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state_group = res[0] if res else None
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if state_group is not None:
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state_groups.setdefault(state_group, []).append(event.event_id)
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t = datetime.datetime.fromtimestamp(
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float(event.origin_server_ts) / 1000
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).strftime("%Y-%m-%d %H:%M:%S,%f")
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content = json.dumps(unfreeze(event.get_dict()["content"]))
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label = (
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"<"
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"<b>%(name)s </b><br/>"
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"Type: <b>%(type)s </b><br/>"
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"State key: <b>%(state_key)s </b><br/>"
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"Content: <b>%(content)s </b><br/>"
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"Time: <b>%(time)s </b><br/>"
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"Depth: <b>%(depth)s </b><br/>"
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"State group: %(state_group)s<br/>"
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">"
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) % {
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"name": event.event_id,
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"type": event.type,
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"state_key": event.get("state_key", None),
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"content": cgi.escape(content, quote=True),
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"time": t,
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"depth": event.depth,
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"state_group": state_group,
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}
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node = pydot.Node(name=event.event_id, label=label)
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node_map[event.event_id] = node
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graph.add_node(node)
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for event in events:
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for prev_id, _ in event.prev_events:
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try:
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end_node = node_map[prev_id]
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except Exception:
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end_node = pydot.Node(name=prev_id, label="<<b>%s</b>>" % (prev_id,))
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node_map[prev_id] = end_node
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graph.add_node(end_node)
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edge = pydot.Edge(node_map[event.event_id], end_node)
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graph.add_edge(edge)
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for group, event_ids in state_groups.items():
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if len(event_ids) <= 1:
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continue
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cluster = pydot.Cluster(str(group), label="<State Group: %s>" % (str(group),))
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for event_id in event_ids:
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cluster.add_node(node_map[event_id])
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graph.add_subgraph(cluster)
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graph.write("%s.dot" % file_prefix, format="raw", prog="dot")
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graph.write_svg("%s.svg" % file_prefix, prog="dot")
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(
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description="Generate a PDU graph for a given room by talking "
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"to the given homeserver to get the list of PDUs. \n"
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"Requires pydot."
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)
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parser.add_argument(
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"-p",
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"--prefix",
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dest="prefix",
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help="String to prefix output files with",
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default="graph_output",
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)
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parser.add_argument("-l", "--limit", help="Only retrieve the last N events.")
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parser.add_argument("db")
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parser.add_argument("room")
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args = parser.parse_args()
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make_graph(args.db, args.room, args.prefix, args.limit)
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