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135 lines
3.8 KiB
135 lines
3.8 KiB
"""
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Reference client implementation consuming trezorctl's script interface
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(ScriptUI class) available by using `--script` flag in any trezorctl command.
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Function `get_address()` is showing the communication with ScriptUI
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on a specific example
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"""
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import os
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import subprocess
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from typing import Dict, List, Optional, Tuple, Union
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import click
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def parse_args_from_line(line: str) -> Tuple[str, Dict[str, Union[str, bool]]]:
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# ?PIN code=123
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# ?PASSPHRASE available_on_device
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command, *args = line.split(" ")
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result: Dict[str, Union[str, bool]] = {}
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for arg in args:
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if "=" in arg:
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key, value = arg.split("=")
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result[key] = value
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else:
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result[arg] = True
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return command, result
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def get_pin_from_user(code: Optional[str] = None) -> str:
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# ?PIN
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# ?PIN code=Current
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while True:
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try:
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pin = click.prompt(
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f"Enter PIN (code: {code})",
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hide_input=True,
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default="",
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show_default=False,
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)
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except click.Abort:
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return "CANCEL"
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if not all(c in "123456789" for c in pin):
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click.echo("PIN must only be numbers 1-9")
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continue
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return ":" + pin
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def show_button_request(
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code: Optional[str] = None, pages: Optional[str] = None, name: Optional[str] = None
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) -> None:
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# ?BUTTON code=Other
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# ?BUTTON code=SignTx pages=2
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# ?BUTTON code=ProtectCall name=confirm_set_pin
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print(f"Please confirm action on Trezor (code={code} name={name} pages={pages})")
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def get_passphrase_from_user(available_on_device: bool = False) -> str:
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# ?PASSPHRASE
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# ?PASSPHRASE available_on_device
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if available_on_device:
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if click.confirm("Enter passphrase on device?", default=True):
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return "ON_DEVICE"
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env_passphrase = os.getenv("PASSPHRASE")
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if env_passphrase:
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if click.confirm("Use env PASSPHRASE?", default=False):
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return ":" + env_passphrase
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while True:
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try:
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passphrase = click.prompt("Enter passphrase", hide_input=True, default="")
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except click.Abort:
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return "CANCEL"
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passphrase2 = click.prompt(
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"Enter passphrase again", hide_input=True, default=""
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)
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if passphrase != passphrase2:
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click.echo("Passphrases do not match")
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continue
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return ":" + passphrase
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def get_address() -> str:
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args = """
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trezorctl --script get-address -n "m/49'/0'/0'/0/0"
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""".strip()
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p = subprocess.Popen( # type: ignore [No overloads for "__new__" match the provided arguments]
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args,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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text=True,
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shell=True,
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bufsize=0,
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)
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assert p.stdout is not None
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assert p.stdin is not None
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text_result: List[str] = []
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while True:
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line = p.stdout.readline().strip()
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if not line:
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break
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if line.startswith("?"):
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command, args = parse_args_from_line(line)
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if command == "?PIN":
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response = get_pin_from_user(**args)
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p.stdin.write(response + "\n")
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elif command == "?PASSPHRASE":
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response = get_passphrase_from_user(**args)
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p.stdin.write(response + "\n")
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elif command == "?BUTTON":
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show_button_request(**args)
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else:
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print("Unrecognized script command:", line)
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text_result.append(line)
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print(line)
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address = text_result[-1]
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print("Address:", address)
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return address
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def clear_session_to_enable_pin():
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os.system("trezorctl clear-session")
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if __name__ == "__main__":
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get_address()
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clear_session_to_enable_pin()
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