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import json
import sys
import time
import psycopg2
import yaml
from canonicaljson import encode_canonical_json
from signedjson.key import read_signing_keys
from signedjson.sign import sign_json
from unpaddedbase64 import encode_base64
db_binary_type = memoryview
def select_v1_keys(connection):
cursor = connection.cursor()
cursor.execute("SELECT server_name, key_id, verify_key FROM server_signature_keys")
rows = cursor.fetchall()
cursor.close()
results = {}
for server_name, key_id, verify_key in rows:
results.setdefault(server_name, {})[key_id] = encode_base64(verify_key)
return results
def select_v1_certs(connection):
cursor = connection.cursor()
cursor.execute("SELECT server_name, tls_certificate FROM server_tls_certificates")
rows = cursor.fetchall()
cursor.close()
results = {}
for server_name, tls_certificate in rows:
results[server_name] = tls_certificate
return results
def select_v2_json(connection):
cursor = connection.cursor()
cursor.execute("SELECT server_name, key_id, key_json FROM server_keys_json")
rows = cursor.fetchall()
cursor.close()
results = {}
for server_name, key_id, key_json in rows:
results.setdefault(server_name, {})[key_id] = json.loads(
str(key_json).decode("utf-8")
)
return results
def convert_v1_to_v2(server_name, valid_until, keys, certificate):
return {
"old_verify_keys": {},
"server_name": server_name,
"verify_keys": {key_id: {"key": key} for key_id, key in keys.items()},
"valid_until_ts": valid_until,
}
def rows_v2(server, json):
valid_until = json["valid_until_ts"]
key_json = encode_canonical_json(json)
for key_id in json["verify_keys"]:
yield (server, key_id, "-", valid_until, valid_until, db_binary_type(key_json))
def main():
config = yaml.safe_load(open(sys.argv[1]))
valid_until = int(time.time() / (3600 * 24)) * 1000 * 3600 * 24
server_name = config["server_name"]
signing_key = read_signing_keys(open(config["signing_key_path"]))[0]
database = config["database"]
assert database["name"] == "psycopg2", "Can only convert for postgresql"
args = database["args"]
args.pop("cp_max")
args.pop("cp_min")
connection = psycopg2.connect(**args)
keys = select_v1_keys(connection)
certificates = select_v1_certs(connection)
json = select_v2_json(connection)
result = {}
for server in keys:
if server not in json:
v2_json = convert_v1_to_v2(
server, valid_until, keys[server], certificates[server]
)
v2_json = sign_json(v2_json, server_name, signing_key)
result[server] = v2_json
yaml.safe_dump(result, sys.stdout, default_flow_style=False)
rows = [row for server, json in result.items() for row in rows_v2(server, json)]
cursor = connection.cursor()
cursor.executemany(
"INSERT INTO server_keys_json ("
" server_name, key_id, from_server,"
" ts_added_ms, ts_valid_until_ms, key_json"
") VALUES (%s, %s, %s, %s, %s, %s)",
rows,
)
connection.commit()
if __name__ == "__main__":
main()
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