forked-synapse/synapse/_scripts/hash_password.py
David Robertson 961ee75a9b
Disallow untyped defs in synapse._scripts (#12422)
Of note: 

* No untyped defs in `register_new_matrix_user`

This one might be contraversial. `request_registration` has three
dependency-injection arguments used for testing. I'm removing the
injection of the `requests` module and using `unitest.mock.patch` in the
test cases instead.

Doing `reveal_type(requests)` and `reveal_type(requests.get)` before the
change:

```
synapse/_scripts/register_new_matrix_user.py:45: note: Revealed type is "Any"
synapse/_scripts/register_new_matrix_user.py:46: note: Revealed type is "Any"
```

And after:

```
synapse/_scripts/register_new_matrix_user.py:44: note: Revealed type is "types.ModuleType"
synapse/_scripts/register_new_matrix_user.py:45: note: Revealed type is "def (url: Union[builtins.str, builtins.bytes], params: Union[Union[_typeshed.SupportsItems[Union[builtins.str, builtins.bytes, builtins.int, builtins.float], Union[builtins.str, builtins.bytes, builtins.int, builtins.float, typing.Iterable[Union[builtins.str, builtins.bytes, builtins.int, builtins.float]], None]], Tuple[Union[builtins.str, builtins.bytes, builtins.int, builtins.float], Union[builtins.str, builtins.bytes, builtins.int, builtins.float, typing.Iterable[Union[builtins.str, builtins.bytes, builtins.int, builtins.float]], None]], typing.Iterable[Tuple[Union[builtins.str, builtins.bytes, builtins.int, builtins.float], Union[builtins.str, builtins.bytes, builtins.int, builtins.float, typing.Iterable[Union[builtins.str, builtins.bytes, builtins.int, builtins.float]], None]]], builtins.str, builtins.bytes], None] =, data: Union[Any, None] =, headers: Union[Any, None] =, cookies: Union[Any, None] =, files: Union[Any, None] =, auth: Union[Any, None] =, timeout: Union[Any, None] =, allow_redirects: builtins.bool =, proxies: Union[Any, None] =, hooks: Union[Any, None] =, stream: Union[Any, None] =, verify: Union[Any, None] =, cert: Union[Any, None] =, json: Union[Any, None] =) -> requests.models.Response"
```

* Drive-by comment in `synapse.storage.types`

* No untyped defs in `synapse_port_db`

This was by far the most painful. I'm happy to break this up into
smaller pieces for review if it's not managable as-is.
2022-04-11 12:41:55 +01:00

84 lines
2.1 KiB
Python
Executable File

#!/usr/bin/env python
import argparse
import getpass
import sys
import unicodedata
import bcrypt
import yaml
def prompt_for_pass() -> str:
password = getpass.getpass("Password: ")
if not password:
raise Exception("Password cannot be blank.")
confirm_password = getpass.getpass("Confirm password: ")
if password != confirm_password:
raise Exception("Passwords do not match.")
return password
def main() -> None:
bcrypt_rounds = 12
password_pepper = ""
parser = argparse.ArgumentParser(
description=(
"Calculate the hash of a new password, so that passwords can be reset"
)
)
parser.add_argument(
"-p",
"--password",
default=None,
help="New password for user. Will prompt if omitted.",
)
parser.add_argument(
"-c",
"--config",
type=argparse.FileType("r"),
help=(
"Path to server config file. "
"Used to read in bcrypt_rounds and password_pepper."
),
)
args = parser.parse_args()
if "config" in args and args.config:
config = yaml.safe_load(args.config)
bcrypt_rounds = config.get("bcrypt_rounds", bcrypt_rounds)
password_config = config.get("password_config", None) or {}
password_pepper = password_config.get("pepper", password_pepper)
password = args.password
if not password:
password = prompt_for_pass()
# On Python 2, make sure we decode it to Unicode before we normalise it
if isinstance(password, bytes):
try:
password = password.decode(sys.stdin.encoding)
except UnicodeDecodeError:
print(
"ERROR! Your password is not decodable using your terminal encoding (%s)."
% (sys.stdin.encoding,)
)
pw = unicodedata.normalize("NFKC", password)
hashed = bcrypt.hashpw(
pw.encode("utf8") + password_pepper.encode("utf8"),
bcrypt.gensalt(bcrypt_rounds),
).decode("ascii")
print(hashed)
if __name__ == "__main__":
main()