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During the migration the automated script to update the copyright headers accidentally got rid of some of the existing copyright lines. Reinstate them.
162 lines
4.6 KiB
Python
162 lines
4.6 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2016 OpenMarket Ltd
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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import argparse
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import datetime
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import html
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import json
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import pydot
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from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
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from synapse.events import make_event_from_dict
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from synapse.util.frozenutils import unfreeze
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def make_graph(file_name: str, file_prefix: str, limit: int) -> None:
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"""
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Generate a dot and SVG file for a graph of events in the room based on the
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topological ordering by reading line-delimited JSON from a file.
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"""
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print("Reading lines")
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with open(file_name) as f:
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lines = f.readlines()
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print("Read lines")
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# Figure out the room version, assume the first line is the create event.
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room_version = KNOWN_ROOM_VERSIONS[
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json.loads(lines[0]).get("content", {}).get("room_version")
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]
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events = [make_event_from_dict(json.loads(line), room_version) for line in lines]
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print("Loaded events.")
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events.sort(key=lambda e: e.depth)
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print("Sorted events")
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if limit:
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events = events[-int(limit) :]
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node_map = {}
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graph = pydot.Dot(graph_name="Test")
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for event in events:
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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"]), indent=4)
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content = content.replace("\n", "<br/>\n")
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print(content)
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content = []
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for key, value in unfreeze(event.get_dict()["content"]).items():
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if value is None:
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value = "<null>"
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elif isinstance(value, str):
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pass
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else:
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value = json.dumps(value)
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content.append(
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"<b>%s</b>: %s,"
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% (
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html.escape(key, quote=True).encode("ascii", "xmlcharrefreplace"),
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html.escape(value, quote=True).encode("ascii", "xmlcharrefreplace"),
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)
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)
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content = "<br/>\n".join(content)
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print(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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">"
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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": content,
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"time": t,
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"depth": event.depth,
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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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print("Created Nodes")
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for event in events:
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for prev_id in event.prev_event_ids():
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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=f"<<b>{prev_id}</b>>")
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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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print("Created edges")
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graph.write("%s.dot" % file_prefix, format="raw", prog="dot")
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print("Created Dot")
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graph.write_svg("%s.svg" % file_prefix, prog="dot")
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print("Created svg")
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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 reading "
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"from a file with line deliminated events. \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("event_file")
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args = parser.parse_args()
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make_graph(args.event_file, args.prefix, args.limit)
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