mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
synced 2024-10-01 08:25:44 -04:00
327 lines
9.7 KiB
Python
Executable File
327 lines
9.7 KiB
Python
Executable File
#!/usr/bin/env python
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from synapse.storage import SCHEMA_VERSION, read_schema
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from synapse.storage._base import SQLBaseStore
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from synapse.storage.signatures import SignatureStore
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from synapse.storage.event_federation import EventFederationStore
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from unpaddedbase64 import encode_base64, decode_base64
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from synapse.crypto.event_signing import compute_event_signature
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from synapse.events.builder import EventBuilder
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from synapse.events.utils import prune_event
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from synapse.crypto.event_signing import check_event_content_hash
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from signedjson.sign import verify_signed_json, SignatureVerifyException
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from signedjson.key import decode_verify_key_bytes
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from canonicaljson import encode_canonical_json
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import argparse
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# import dns.resolver
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import hashlib
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import httplib
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import json
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import sqlite3
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import urllib2
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delta_sql = """
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CREATE TABLE IF NOT EXISTS event_json(
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event_id TEXT NOT NULL,
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room_id TEXT NOT NULL,
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internal_metadata NOT NULL,
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json BLOB NOT NULL,
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CONSTRAINT ev_j_uniq UNIQUE (event_id)
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);
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CREATE INDEX IF NOT EXISTS event_json_id ON event_json(event_id);
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CREATE INDEX IF NOT EXISTS event_json_room_id ON event_json(room_id);
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PRAGMA user_version = 10;
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"""
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class Store(object):
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_get_event_signatures_txn = SignatureStore.__dict__["_get_event_signatures_txn"]
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_get_event_content_hashes_txn = SignatureStore.__dict__["_get_event_content_hashes_txn"]
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_get_event_reference_hashes_txn = SignatureStore.__dict__["_get_event_reference_hashes_txn"]
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_get_prev_event_hashes_txn = SignatureStore.__dict__["_get_prev_event_hashes_txn"]
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_get_prev_events_and_state = EventFederationStore.__dict__["_get_prev_events_and_state"]
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_get_auth_events = EventFederationStore.__dict__["_get_auth_events"]
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cursor_to_dict = SQLBaseStore.__dict__["cursor_to_dict"]
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_simple_select_onecol_txn = SQLBaseStore.__dict__["_simple_select_onecol_txn"]
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_simple_select_list_txn = SQLBaseStore.__dict__["_simple_select_list_txn"]
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_simple_insert_txn = SQLBaseStore.__dict__["_simple_insert_txn"]
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def _generate_event_json(self, txn, rows):
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events = []
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for row in rows:
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d = dict(row)
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d.pop("stream_ordering", None)
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d.pop("topological_ordering", None)
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d.pop("processed", None)
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if "origin_server_ts" not in d:
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d["origin_server_ts"] = d.pop("ts", 0)
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else:
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d.pop("ts", 0)
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d.pop("prev_state", None)
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d.update(json.loads(d.pop("unrecognized_keys")))
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d["sender"] = d.pop("user_id")
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d["content"] = json.loads(d["content"])
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if "age_ts" not in d:
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# For compatibility
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d["age_ts"] = d.get("origin_server_ts", 0)
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d.setdefault("unsigned", {})["age_ts"] = d.pop("age_ts")
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outlier = d.pop("outlier", False)
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# d.pop("membership", None)
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d.pop("state_hash", None)
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d.pop("replaces_state", None)
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b = EventBuilder(d)
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b.internal_metadata.outlier = outlier
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events.append(b)
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for i, ev in enumerate(events):
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signatures = self._get_event_signatures_txn(
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txn, ev.event_id,
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)
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ev.signatures = {
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n: {
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k: encode_base64(v) for k, v in s.items()
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}
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for n, s in signatures.items()
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}
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hashes = self._get_event_content_hashes_txn(
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txn, ev.event_id,
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)
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ev.hashes = {
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k: encode_base64(v) for k, v in hashes.items()
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}
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prevs = self._get_prev_events_and_state(txn, ev.event_id)
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ev.prev_events = [
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(e_id, h)
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for e_id, h, is_state in prevs
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if is_state == 0
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]
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# ev.auth_events = self._get_auth_events(txn, ev.event_id)
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hashes = dict(ev.auth_events)
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for e_id, hash in ev.prev_events:
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if e_id in hashes and not hash:
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hash.update(hashes[e_id])
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#
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# if hasattr(ev, "state_key"):
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# ev.prev_state = [
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# (e_id, h)
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# for e_id, h, is_state in prevs
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# if is_state == 1
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# ]
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return [e.build() for e in events]
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store = Store()
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# def get_key(server_name):
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# print "Getting keys for: %s" % (server_name,)
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# targets = []
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# if ":" in server_name:
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# target, port = server_name.split(":")
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# targets.append((target, int(port)))
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# try:
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# answers = dns.resolver.query("_matrix._tcp." + server_name, "SRV")
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# for srv in answers:
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# targets.append((srv.target, srv.port))
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# except dns.resolver.NXDOMAIN:
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# targets.append((server_name, 8448))
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# except:
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# print "Failed to lookup keys for %s" % (server_name,)
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# return {}
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#
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# for target, port in targets:
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# url = "https://%s:%i/_matrix/key/v1" % (target, port)
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# try:
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# keys = json.load(urllib2.urlopen(url, timeout=2))
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# verify_keys = {}
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# for key_id, key_base64 in keys["verify_keys"].items():
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# verify_key = decode_verify_key_bytes(
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# key_id, decode_base64(key_base64)
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# )
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# verify_signed_json(keys, server_name, verify_key)
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# verify_keys[key_id] = verify_key
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# print "Got keys for: %s" % (server_name,)
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# return verify_keys
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# except urllib2.URLError:
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# pass
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# except urllib2.HTTPError:
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# pass
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# except httplib.HTTPException:
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# pass
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#
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# print "Failed to get keys for %s" % (server_name,)
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# return {}
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def reinsert_events(cursor, server_name, signing_key):
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print "Running delta: v10"
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cursor.executescript(delta_sql)
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cursor.execute(
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"SELECT * FROM events ORDER BY rowid ASC"
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)
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print "Getting events..."
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rows = store.cursor_to_dict(cursor)
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events = store._generate_event_json(cursor, rows)
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print "Got events from DB."
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algorithms = {
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"sha256": hashlib.sha256,
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}
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key_id = "%s:%s" % (signing_key.alg, signing_key.version)
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verify_key = signing_key.verify_key
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verify_key.alg = signing_key.alg
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verify_key.version = signing_key.version
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server_keys = {
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server_name: {
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key_id: verify_key
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}
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}
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i = 0
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N = len(events)
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for event in events:
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if i % 100 == 0:
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print "Processed: %d/%d events" % (i,N,)
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i += 1
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# for alg_name in event.hashes:
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# if check_event_content_hash(event, algorithms[alg_name]):
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# pass
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# else:
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# pass
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# print "FAIL content hash %s %s" % (alg_name, event.event_id, )
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have_own_correctly_signed = False
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for host, sigs in event.signatures.items():
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pruned = prune_event(event)
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for key_id in sigs:
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if host not in server_keys:
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server_keys[host] = {} # get_key(host)
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if key_id in server_keys[host]:
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try:
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verify_signed_json(
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pruned.get_pdu_json(),
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host,
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server_keys[host][key_id]
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)
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if host == server_name:
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have_own_correctly_signed = True
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except SignatureVerifyException:
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print "FAIL signature check %s %s" % (
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key_id, event.event_id
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)
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# TODO: Re sign with our own server key
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if not have_own_correctly_signed:
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sigs = compute_event_signature(event, server_name, signing_key)
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event.signatures.update(sigs)
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pruned = prune_event(event)
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for key_id in event.signatures[server_name]:
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verify_signed_json(
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pruned.get_pdu_json(),
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server_name,
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server_keys[server_name][key_id]
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)
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event_json = encode_canonical_json(
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event.get_dict()
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).decode("UTF-8")
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metadata_json = encode_canonical_json(
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event.internal_metadata.get_dict()
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).decode("UTF-8")
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store._simple_insert_txn(
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cursor,
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table="event_json",
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values={
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"event_id": event.event_id,
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"room_id": event.room_id,
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"internal_metadata": metadata_json,
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"json": event_json,
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},
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or_replace=True,
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)
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def main(database, server_name, signing_key):
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conn = sqlite3.connect(database)
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cursor = conn.cursor()
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# Do other deltas:
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cursor.execute("PRAGMA user_version")
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row = cursor.fetchone()
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if row and row[0]:
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user_version = row[0]
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# Run every version since after the current version.
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for v in range(user_version + 1, 10):
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print "Running delta: %d" % (v,)
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sql_script = read_schema("delta/v%d" % (v,))
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cursor.executescript(sql_script)
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reinsert_events(cursor, server_name, signing_key)
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conn.commit()
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print "Success!"
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument("database")
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parser.add_argument("server_name")
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parser.add_argument(
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"signing_key", type=argparse.FileType('r'),
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)
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args = parser.parse_args()
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signing_key = signedjson.key.read_signing_keys(args.signing_key)
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main(args.database, args.server_name, signing_key[0])
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