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703 lines
20 KiB
703 lines
20 KiB
#!/usr/bin/env python3
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from __future__ import annotations
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import json
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import logging
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import re
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from collections import OrderedDict, defaultdict
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from pathlib import Path
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from typing import Dict # for python38 support, must be used in type aliases
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from typing import List # for python38 support, must be used in type aliases
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from typing import Any, Callable, Iterable, Iterator, cast
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from typing_extensions import ( # for python37 support, is not present in typing there
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Literal,
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TypedDict,
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)
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try:
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import requests
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except ImportError:
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requests = None
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log = logging.getLogger(__name__)
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ROOT = Path(__file__).resolve().parent.parent
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DEFS_DIR = ROOT / "defs"
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class SupportItemBool(TypedDict):
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supported: dict[str, bool]
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unsupported: dict[str, bool]
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class SupportItemVersion(TypedDict):
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supported: dict[str, str]
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unsupported: dict[str, str]
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class SupportData(TypedDict):
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connect: SupportItemBool
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suite: SupportItemBool
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t1b1: SupportItemVersion
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t2t1: SupportItemVersion
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t2b1: SupportItemVersion
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class SupportInfoItem(TypedDict):
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connect: bool
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suite: bool
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t1b1: Literal[False] | str
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t2t1: Literal[False] | str
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t2b1: Literal[False] | str
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SupportInfo = Dict[str, SupportInfoItem]
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class Coin(TypedDict):
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# Necessary fields for BTC - from BTC_CHECKS
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coin_name: str
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coin_shortcut: str
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coin_label: str
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website: str
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github: str
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maintainer: str
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curve_name: str
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address_type: int
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address_type_p2sh: int
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maxfee_kb: int
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minfee_kb: int
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hash_genesis_block: str
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xprv_magic: int
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xpub_magic: int
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xpub_magic_segwit_p2sh: int
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xpub_magic_segwit_native: int
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slip44: int
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segwit: bool
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decred: bool
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fork_id: int
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force_bip143: bool
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default_fee_b: dict[str, int]
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dust_limit: int
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blocktime_seconds: int
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signed_message_header: str
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uri_prefix: str
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min_address_length: int
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max_address_length: int
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bech32_prefix: str
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cashaddr_prefix: str
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# Other fields optionally coming from JSON
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links: dict[str, str]
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curve: str
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decimals: int
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# Mandatory fields added later in coin.update()
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name: str
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shortcut: str
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key: str
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icon: str
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# Special ETH fields
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coingecko_id: str
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chain: str
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chain_id: int
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url: str
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# Special erc20 fields
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symbol: str
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address: str
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address_bytes: bytes
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dup_key_nontoken: bool
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# Special NEM fields
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ticker: str
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# Fields that are being created
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unsupported: bool
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duplicate: bool
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support: SupportInfoItem
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is_testnet: bool
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# Backend-oriented fields
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blockchain_link: dict[str, Any]
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blockbook: list[str]
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bitcore: list[str]
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Coins = List[Coin]
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CoinBuckets = Dict[str, Coins]
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class FidoApp(TypedDict):
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name: str
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webauthn: list[str]
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u2f: list[dict[str, str]]
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use_sign_count: bool
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use_self_attestation: bool
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use_compact: bool
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no_icon: bool
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key: str
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icon: str
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FidoApps = List[FidoApp]
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def load_json(*path: str | Path) -> Any:
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"""Convenience function to load a JSON file from DEFS_DIR."""
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if len(path) == 1 and isinstance(path[0], Path):
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file = path[0]
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else:
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file = Path(DEFS_DIR, *path)
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return json.loads(file.read_text(), object_pairs_hook=OrderedDict)
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def get_btc_testnet_status(name: str) -> bool:
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return any((mark in name.lower()) for mark in ("testnet", "regtest"))
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# ====== CoinsInfo ======
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class CoinsInfo(Dict[str, Coins]):
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"""Collection of information about all known kinds of coins.
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It contains the following lists:
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`bitcoin` for btc-like coins,
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`eth` for ethereum networks,
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`erc20` for ERC20 tokens,
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`nem` for NEM mosaics,
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`misc` for other networks.
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Accessible as a dict or by attribute: `info["misc"] == info.misc`
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"""
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def as_list(self) -> Coins:
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return sum(self.values(), [])
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def as_dict(self) -> dict[str, Coin]:
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return {coin["key"]: coin for coin in self.as_list()}
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def __getattr__(self, attr: str) -> Coins:
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if attr in self:
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return self[attr]
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else:
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raise AttributeError(attr)
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# ====== coin validation ======
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def check_type(
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val: Any,
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types: type | tuple[type, ...],
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nullable: bool = False,
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empty: bool = False,
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regex: str | None = None,
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choice: list[str] | None = None,
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) -> None:
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# check nullable
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if val is None:
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if nullable:
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return
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else:
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raise ValueError("Missing required value")
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# check type
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if not isinstance(val, types):
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raise TypeError(f"Wrong type (expected: {types})")
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# check empty
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if isinstance(val, (list, dict)) and not empty and not val:
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raise ValueError("Empty collection")
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if isinstance(val, str) and not empty and not val:
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raise ValueError("Empty string")
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# check regex
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if regex is not None:
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if types is not str:
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raise TypeError("Wrong type for regex check")
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assert isinstance(val, str)
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if not re.search(regex, val):
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raise ValueError(f"Value does not match regex {regex}")
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# check choice
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if choice is not None and val not in choice:
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choice_str = ", ".join(choice)
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raise ValueError(f"Value not allowed, use one of: {choice_str}")
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def check_key(
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key: str, types: type | tuple[type, ...], optional: bool = False, **kwargs: Any
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) -> Callable[[Coin], None]:
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def do_check(coin: Coin) -> None:
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if key not in coin:
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if optional:
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return
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else:
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raise KeyError(f"{key}: Missing key")
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try:
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check_type(coin[key], types, **kwargs)
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except Exception as e:
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raise ValueError(f"{key}: {e}") from e
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return do_check
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BTC_CHECKS = [
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check_key("coin_name", str, regex=r"^[A-Z]"),
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check_key("coin_shortcut", str, regex=r"^t?[A-Z]{3,}$"),
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check_key("coin_label", str, regex=r"^x?[A-Z]"),
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check_key("website", str, regex=r"^https://.*[^/]$"),
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check_key("github", str, regex=r"^https://git(hu|la)b.com/.*[^/]$"),
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check_key("maintainer", str),
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check_key(
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"curve_name",
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str,
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choice=[
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"secp256k1",
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"secp256k1_decred",
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"secp256k1_groestl",
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"secp256k1_smart",
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],
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),
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check_key("address_type", int),
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check_key("address_type_p2sh", int),
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check_key("maxfee_kb", int),
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check_key("minfee_kb", int),
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check_key("hash_genesis_block", str, regex=r"^[0-9a-f]{64}$"),
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check_key("xprv_magic", int),
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check_key("xpub_magic", int),
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check_key("xpub_magic_segwit_p2sh", int, nullable=True),
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check_key("xpub_magic_segwit_native", int, nullable=True),
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check_key("slip44", int),
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check_key("segwit", bool),
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check_key("decred", bool),
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check_key("fork_id", int, nullable=True),
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check_key("force_bip143", bool),
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check_key("default_fee_b", dict),
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check_key("dust_limit", int),
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check_key("blocktime_seconds", int),
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check_key("signed_message_header", str),
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check_key("uri_prefix", str, regex=r"^[a-z-\.\+]+$"),
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check_key("min_address_length", int),
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check_key("max_address_length", int),
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check_key("bech32_prefix", str, regex=r"^[a-z-\.\+]+$", nullable=True),
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check_key("cashaddr_prefix", str, regex=r"^[a-z-\.\+]+$", nullable=True),
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]
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def validate_btc(coin: Coin) -> list[str]:
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errors: list[str] = []
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for check in BTC_CHECKS:
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try:
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check(coin)
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except Exception as e:
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errors.append(str(e))
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magics: list[int] = [
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coin[k]
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for k in (
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"xprv_magic",
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"xpub_magic",
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"xpub_magic_segwit_p2sh",
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"xpub_magic_segwit_native",
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)
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if coin[k] is not None
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]
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# each of those must be unique
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# therefore length of list == length of set of unique values
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if len(magics) != len(set(magics)):
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errors.append("XPUB/XPRV magic numbers must be unique")
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if coin["address_type"] == coin["address_type_p2sh"]:
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errors.append("address_type must be distinct from address_type_p2sh")
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if not coin["maxfee_kb"] >= coin["minfee_kb"]:
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errors.append("max fee must not be smaller than min fee")
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if not coin["max_address_length"] >= coin["min_address_length"]:
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errors.append("max address length must not be smaller than min address length")
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if coin["is_testnet"] and coin["slip44"] != 1:
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errors.append("testnet coins must use slip44 coin type 1")
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if coin["segwit"]:
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if coin["bech32_prefix"] is None:
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errors.append("bech32_prefix must be defined for segwit-enabled coin")
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if coin["xpub_magic_segwit_p2sh"] is None:
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errors.append(
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"xpub_magic_segwit_p2sh must be defined for segwit-enabled coin"
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)
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else:
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if coin["bech32_prefix"] is not None:
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errors.append("bech32_prefix must not be defined for segwit-disabled coin")
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if coin["xpub_magic_segwit_p2sh"] is not None:
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errors.append(
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"xpub_magic_segwit_p2sh must not be defined for segwit-disabled coin"
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)
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return errors
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# ======= Coin json loaders =======
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def _load_btc_coins() -> Coins:
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"""Load btc-like coins from `bitcoin/*.json`"""
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coins: Coins = []
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for file in DEFS_DIR.glob("bitcoin/*.json"):
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coin: Coin = load_json(file)
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coin.update(
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name=coin["coin_label"],
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shortcut=coin["coin_shortcut"],
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key=f"bitcoin:{coin['coin_shortcut']}",
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icon=str(file.with_suffix(".png")),
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is_testnet=get_btc_testnet_status(coin["coin_label"]),
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)
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coins.append(coin)
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return coins
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def _load_builtin_ethereum_networks() -> Coins:
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"""Load ethereum networks from `ethereum/networks.json`"""
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chains_data = load_json("ethereum", "networks.json")
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networks: Coins = []
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for chain_data in chains_data:
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chain_data["key"] = f"eth:{chain_data['shortcut']}:{chain_data['chain_id']}"
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# is_testnet is present in the JSON
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networks.append(cast(Coin, chain_data))
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return networks
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def _load_builtin_erc20_tokens() -> Coins:
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"""Load ERC20 tokens from `ethereum/tokens.json`."""
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tokens_data = load_json("ethereum", "tokens.json")
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all_tokens: Coins = []
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for chain_id_and_chain, tokens in tokens_data.items():
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chain_id, chain = chain_id_and_chain.split(";", maxsplit=1)
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for token in tokens:
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token.update(
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chain=chain,
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chain_id=int(chain_id),
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address=token["address"].lower(),
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address_bytes=bytes.fromhex(token["address"][2:]),
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symbol=token["shortcut"],
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key=f"erc20:{chain}:{token['shortcut']}",
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is_testnet=False,
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)
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all_tokens.append(cast(Coin, token))
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return all_tokens
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def _load_nem_mosaics() -> Coins:
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"""Loads NEM mosaics from `nem/nem_mosaics.json`"""
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mosaics: Coins = load_json("nem/nem_mosaics.json")
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for mosaic in mosaics:
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shortcut = mosaic["ticker"].strip()
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mosaic.update(
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shortcut=shortcut,
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key=f"nem:{shortcut}",
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is_testnet=False,
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)
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return mosaics
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def _load_misc() -> Coins:
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"""Loads miscellaneous networks from `misc/misc.json`"""
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others: Coins = load_json("misc/misc.json")
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for other in others:
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other.update(
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key=f"misc:{other['shortcut']}",
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is_testnet=False,
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)
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return others
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def _load_fido_apps() -> FidoApps:
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"""Load FIDO apps from `fido/*.json`"""
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apps: FidoApps = []
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for file in sorted(DEFS_DIR.glob("fido/*.json")):
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app_name = file.stem.lower()
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app = load_json(file)
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app.setdefault("use_sign_count", None)
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app.setdefault("use_self_attestation", None)
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app.setdefault("use_compact", None)
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app.setdefault("u2f", [])
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app.setdefault("webauthn", [])
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icon_file = file.with_suffix(".png")
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if not icon_file.exists():
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icon_path = None
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else:
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icon_path = str(icon_file)
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app.update(key=app_name, icon=icon_path)
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apps.append(app)
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return apps
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# ====== support info ======
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RELEASES_URL = "https://data.trezor.io/firmware/{}/releases.json"
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MISSING_SUPPORT_MEANS_NO = ("connect", "suite")
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VERSIONED_SUPPORT_INFO = ("T1B1", "T2T1", "T2B1")
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def get_support_data() -> SupportData:
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"""Get raw support data from `support.json`."""
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return load_json("support.json")
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def latest_releases() -> dict[str, Any]:
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"""Get latest released firmware versions for all models"""
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if not requests:
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raise RuntimeError("requests library is required for getting release info")
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latest: dict[str, Any] = {}
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for model in VERSIONED_SUPPORT_INFO:
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# TODO: support new UPPERCASE model names in RELEASES_URL
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url_model = model.lower() # need to be e.g. t1b1 for now
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releases = requests.get(RELEASES_URL.format(url_model)).json()
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latest[model] = max(tuple(r["version"]) for r in releases)
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return latest
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def support_info_single(support_data: SupportData, coin: Coin) -> SupportInfoItem:
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"""Extract a support dict from `support.json` data.
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Returns a dict of support values for each "device", i.e., `support.json`
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top-level key.
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The support value for each device is determined in order of priority:
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* if the coin has an entry in `unsupported`, its support is `False`
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* if the coin has an entry in `supported` its support is that entry
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(usually a version string, or `True` for connect/suite)
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* if the coin doesn't have an entry, its support status is `None`
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"""
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support_info_item = {}
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key = coin["key"]
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for device, values in support_data.items():
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assert isinstance(values, dict)
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if key in values["unsupported"]:
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support_value: Any = False
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elif key in values["supported"]:
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support_value = values["supported"][key]
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elif device in MISSING_SUPPORT_MEANS_NO:
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support_value = False
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else:
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support_value = None
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support_info_item[device] = support_value
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return cast(SupportInfoItem, support_info_item)
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def support_info(coins: Iterable[Coin] | CoinsInfo | dict[str, Coin]) -> SupportInfo:
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"""Generate Trezor support information.
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Takes a collection of coins and generates a support-info entry for each.
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The support-info is a dict with keys based on `support.json` keys.
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These are usually: "T1B1", "T2T1", "T2B1", "connect" and "suite".
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The `coins` argument can be a `CoinsInfo` object, a list or a dict of
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coin items.
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Support information is taken from `support.json`.
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"""
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if isinstance(coins, CoinsInfo):
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coins = coins.as_list()
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elif isinstance(coins, dict):
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coins = coins.values()
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support_data = get_support_data()
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support: SupportInfo = {}
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for coin in coins:
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support[coin["key"]] = support_info_single(support_data, coin)
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return support
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# ====== data cleanup functions ======
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def _ensure_mandatory_values(coins: Coins) -> None:
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"""Checks that every coin has the mandatory fields: name, shortcut, key"""
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for coin in coins:
|
|
if not all(coin.get(k) for k in ("name", "shortcut", "key")):
|
|
raise ValueError(coin)
|
|
|
|
|
|
def symbol_from_shortcut(shortcut: str) -> tuple[str, str]:
|
|
symsplit = shortcut.split(" ", maxsplit=1)
|
|
return symsplit[0], symsplit[1] if len(symsplit) > 1 else ""
|
|
|
|
|
|
def mark_duplicate_shortcuts(coins: Coins) -> CoinBuckets:
|
|
"""Finds coins with identical symbols and sets their `duplicate` field.
|
|
|
|
"Symbol" here means the first part of `shortcut` (separated by space),
|
|
so, e.g., "BTL (Battle)" and "BTL (Bitlle)" have the same symbol "BTL".
|
|
|
|
The result of this function is a dictionary of _buckets_, each of which is
|
|
indexed by the duplicated symbol, or `_override`. The `_override` bucket will
|
|
contain all coins that are set to `true` in `duplicity_overrides.json`.
|
|
|
|
Each coin in every bucket will have its "duplicate" property set to True, unless
|
|
it's explicitly marked as `false` in `duplicity_overrides.json`.
|
|
"""
|
|
dup_symbols: CoinBuckets = defaultdict(list)
|
|
|
|
for coin in coins:
|
|
symbol, _ = symbol_from_shortcut(coin["shortcut"].lower())
|
|
dup_symbols[symbol].append(coin)
|
|
|
|
dup_symbols = {k: v for k, v in dup_symbols.items() if len(v) > 1}
|
|
# mark duplicate symbols
|
|
for values in dup_symbols.values():
|
|
for coin in values:
|
|
coin["duplicate"] = True
|
|
|
|
return dup_symbols
|
|
|
|
|
|
def apply_duplicity_overrides(coins: Coins) -> Coins:
|
|
overrides = load_json("duplicity_overrides.json")
|
|
override_bucket: Coins = []
|
|
for coin in coins:
|
|
override_value = overrides.get(coin["key"])
|
|
if override_value is True:
|
|
override_bucket.append(coin)
|
|
if override_value is not None:
|
|
coin["duplicate"] = override_value
|
|
|
|
return override_bucket
|
|
|
|
|
|
def find_duplicate_keys(all_coins: Coins) -> None:
|
|
dups: CoinBuckets = defaultdict(list)
|
|
for coin in all_coins:
|
|
dups[coin["key"]].append(coin)
|
|
|
|
for coins in dups.values():
|
|
if len(coins) <= 1:
|
|
continue
|
|
coin = coins[0]
|
|
raise ValueError(f"Duplicate key {coin['key']}")
|
|
|
|
|
|
def fill_blockchain_links(all_coins: CoinsInfo) -> None:
|
|
blockchain_links = load_json("blockchain_link.json")
|
|
for coins in all_coins.values():
|
|
for coin in coins:
|
|
link = blockchain_links.get(coin["key"])
|
|
coin["blockchain_link"] = link
|
|
if link and link["type"] == "blockbook":
|
|
coin["blockbook"] = link["url"]
|
|
else:
|
|
coin["blockbook"] = []
|
|
|
|
|
|
def _btc_sort_key(coin: Coin) -> str:
|
|
if coin["name"] in ("Bitcoin", "Testnet", "Regtest"):
|
|
return "000000" + coin["name"]
|
|
else:
|
|
return coin["name"]
|
|
|
|
|
|
def collect_coin_info() -> CoinsInfo:
|
|
"""Returns all definition as dict organized by coin type.
|
|
`coins` for btc-like coins,
|
|
`eth` for ethereum networks,
|
|
`erc20` for ERC20 tokens,
|
|
`nem` for NEM mosaics,
|
|
`misc` for other networks.
|
|
"""
|
|
all_coins = CoinsInfo(
|
|
bitcoin=_load_btc_coins(),
|
|
eth=_load_builtin_ethereum_networks(),
|
|
erc20=_load_builtin_erc20_tokens(),
|
|
nem=_load_nem_mosaics(),
|
|
misc=_load_misc(),
|
|
)
|
|
|
|
for coins in all_coins.values():
|
|
_ensure_mandatory_values(coins)
|
|
|
|
fill_blockchain_links(all_coins)
|
|
|
|
return all_coins
|
|
|
|
|
|
def sort_coin_infos(all_coins: CoinsInfo) -> None:
|
|
for k, coins in all_coins.items():
|
|
if k == "bitcoin":
|
|
coins.sort(key=_btc_sort_key)
|
|
elif k == "nem":
|
|
# do not sort nem
|
|
pass
|
|
elif k == "eth":
|
|
# sort ethereum networks by chain_id
|
|
coins.sort(key=lambda c: c["chain_id"])
|
|
else:
|
|
coins.sort(key=lambda c: c["key"].upper())
|
|
|
|
|
|
def coin_info_with_duplicates() -> tuple[CoinsInfo, CoinBuckets]:
|
|
"""Collects coin info, detects duplicates but does not remove them.
|
|
|
|
Returns the CoinsInfo object and duplicate buckets.
|
|
"""
|
|
all_coins = collect_coin_info()
|
|
coin_list = all_coins.as_list()
|
|
# generate duplicity buckets based on shortcuts
|
|
buckets = mark_duplicate_shortcuts(all_coins.as_list())
|
|
# ensure the whole list has unique keys
|
|
find_duplicate_keys(coin_list)
|
|
# apply duplicity overrides
|
|
buckets["_override"] = apply_duplicity_overrides(coin_list)
|
|
sort_coin_infos(all_coins)
|
|
|
|
return all_coins, buckets
|
|
|
|
|
|
def coin_info() -> CoinsInfo:
|
|
"""Collects coin info, fills out support info and returns the result.
|
|
|
|
Does not auto-delete duplicates. This should now be based on support info.
|
|
"""
|
|
all_coins, _ = coin_info_with_duplicates()
|
|
return all_coins
|
|
|
|
|
|
def fido_info() -> FidoApps:
|
|
"""Returns info about known FIDO/U2F apps."""
|
|
return _load_fido_apps()
|
|
|
|
|
|
def search(coins: CoinsInfo | Coins, keyword: str) -> Iterator[Any]:
|
|
kwl = keyword.lower()
|
|
if isinstance(coins, CoinsInfo):
|
|
coins = coins.as_list()
|
|
|
|
for coin in coins:
|
|
key = coin["key"].lower()
|
|
name = coin["name"].lower()
|
|
shortcut = coin["shortcut"].lower()
|
|
symbol, suffix = symbol_from_shortcut(shortcut)
|
|
if (
|
|
kwl == key
|
|
or kwl in name
|
|
or kwl == shortcut
|
|
or kwl == symbol
|
|
or kwl in suffix
|
|
):
|
|
yield coin
|