Remove & changelog (#5548)

changelog.d/5548.misc

+Remove non-functioning check_event_hash.py dev script.

scripts-dev/check_event_hash.py

-import argparse
-import hashlib
-import json
-import logging
-import sys
-
-from unpaddedbase64 import encode_base64
-
-from synapse.crypto.event_signing import (
-    check_event_content_hash,
-    compute_event_reference_hash,
-)
-
-
-class dictobj(dict):
-    def __init__(self, *args, **kargs):
-        dict.__init__(self, *args, **kargs)
-        self.__dict__ = self
-
-    def get_dict(self):
-        return dict(self)
-
-    def get_full_dict(self):
-        return dict(self)
-
-    def get_pdu_json(self):
-        return dict(self)
-
-
-def main():
-    parser = argparse.ArgumentParser()
-    parser.add_argument(
-        "input_json", nargs="?", type=argparse.FileType("r"), default=sys.stdin
-    )
-    args = parser.parse_args()
-    logging.basicConfig()
-
-    event_json = dictobj(json.load(args.input_json))
-
-    algorithms = {"sha256": hashlib.sha256}
-
-    for alg_name in event_json.hashes:
-        if check_event_content_hash(event_json, algorithms[alg_name]):
-            print("PASS content hash %s" % (alg_name,))
-        else:
-            print("FAIL content hash %s" % (alg_name,))
-
-    for algorithm in algorithms.values():
-        name, h_bytes = compute_event_reference_hash(event_json, algorithm)
-        print("Reference hash %s: %s" % (name, encode_base64(h_bytes)))
-
-
-if __name__ == "__main__":
-    main()