mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-22 06:18:07 +00:00
650 lines
19 KiB
Python
Executable File
650 lines
19 KiB
Python
Executable File
#!/usr/bin/env python3
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import io
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import json
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import logging
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import re
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import sys
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import os
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import glob
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import binascii
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import struct
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import zlib
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from collections import defaultdict
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from hashlib import sha256
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import click
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import coin_info
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from coindef import CoinDef
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try:
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import termcolor
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except ImportError:
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termcolor = None
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try:
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import mako
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import mako.template
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from munch import Munch
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CAN_RENDER = True
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except ImportError:
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CAN_RENDER = False
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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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try:
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import ed25519
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from PIL import Image
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from trezorlib import protobuf
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CAN_BUILD_DEFS = True
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except ImportError:
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CAN_BUILD_DEFS = False
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# ======= Crayon colors ======
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USE_COLORS = False
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def crayon(color, string, bold=False, dim=False):
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if not termcolor or not USE_COLORS:
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return string
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else:
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if bold:
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attrs = ["bold"]
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elif dim:
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attrs = ["dark"]
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else:
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attrs = []
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return termcolor.colored(string, color, attrs=attrs)
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def print_log(level, *args, **kwargs):
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prefix = logging.getLevelName(level)
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if level == logging.DEBUG:
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prefix = crayon("blue", prefix, bold=False)
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elif level == logging.INFO:
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prefix = crayon("blue", prefix, bold=True)
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elif level == logging.WARNING:
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prefix = crayon("red", prefix, bold=False)
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elif level == logging.ERROR:
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prefix = crayon("red", prefix, bold=True)
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print(prefix, *args, **kwargs)
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# ======= Mako management ======
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def c_str_filter(b):
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if b is None:
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return "NULL"
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def hexescape(c):
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return r"\x{:02x}".format(c)
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if isinstance(b, bytes):
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return '"' + "".join(map(hexescape, b)) + '"'
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else:
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return json.dumps(b)
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def black_repr_filter(val):
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if isinstance(val, str):
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if '"' in val:
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return repr(val)
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else:
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return c_str_filter(val)
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elif isinstance(val, bytes):
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return "b" + c_str_filter(val)
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else:
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return repr(val)
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def ascii_filter(s):
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return re.sub("[^ -\x7e]", "_", s)
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def make_support_filter(support_info):
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def supported_on(device, coins):
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for coin in coins:
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if support_info[coin.key].get(device):
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yield coin
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return supported_on
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MAKO_FILTERS = {
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"c_str": c_str_filter,
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"ascii": ascii_filter,
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"black_repr": black_repr_filter,
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}
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def render_file(src, dst, coins, support_info):
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"""Renders `src` template into `dst`.
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`src` is a filename, `dst` is an open file object.
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"""
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template = mako.template.Template(filename=src)
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result = template.render(
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support_info=support_info,
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supported_on=make_support_filter(support_info),
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**coins,
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**MAKO_FILTERS,
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)
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dst.write(result)
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# ====== validation functions ======
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def highlight_key(coin, color):
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"""Return a colorful string where the SYMBOL part is bold."""
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keylist = coin["key"].split(":")
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if keylist[-1].isdigit():
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keylist[-2] = crayon(color, keylist[-2], bold=True)
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else:
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keylist[-1] = crayon(color, keylist[-1], bold=True)
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key = crayon(color, ":".join(keylist))
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name = crayon(None, f"({coin['name']})", dim=True)
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return f"{key} {name}"
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def find_address_collisions(coins, field):
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"""Detects collisions in a given field. Returns buckets of colliding coins."""
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collisions = defaultdict(list)
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for coin in coins:
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value = coin[field]
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collisions[value].append(coin)
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return {k: v for k, v in collisions.items() if len(v) > 1}
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def check_btc(coins):
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check_passed = True
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support_infos = coin_info.support_info(coins)
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# validate individual coin data
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for coin in coins:
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errors = coin_info.validate_btc(coin)
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if errors:
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check_passed = False
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print_log(logging.ERROR, "invalid definition for", coin["name"])
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print("\n".join(errors))
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def collision_str(bucket):
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"""Generate a colorful string out of a bucket of colliding coins."""
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coin_strings = []
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for coin in bucket:
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name = coin["name"]
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prefix = ""
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if name.endswith("Testnet"):
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color = "green"
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elif name == "Bitcoin":
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color = "red"
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elif coin.get("unsupported"):
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color = "grey"
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prefix = crayon("blue", "(X)", bold=True)
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else:
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color = "blue"
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hl = highlight_key(coin, color)
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coin_strings.append(prefix + hl)
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return ", ".join(coin_strings)
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def print_collision_buckets(buckets, prefix, maxlevel=logging.ERROR):
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"""Intelligently print collision buckets.
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For each bucket, if there are any collision with a mainnet, print it.
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If the collision is with unsupported networks or testnets, it's just INFO.
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If the collision is with supported mainnets, it's WARNING.
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If the collision with any supported network includes Bitcoin, it's an ERROR.
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"""
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failed = False
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for key, bucket in buckets.items():
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mainnets = [c for c in bucket if not c["name"].endswith("Testnet")]
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have_bitcoin = False
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for coin in mainnets:
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if coin["name"] == "Bitcoin":
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have_bitcoin = True
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if all(v is False for k, v in support_infos[coin["key"]].items()):
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coin["unsupported"] = True
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supported_mainnets = [c for c in mainnets if not c.get("unsupported")]
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supported_networks = [c for c in bucket if not c.get("unsupported")]
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if len(mainnets) > 1:
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if have_bitcoin and len(supported_networks) > 1:
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# ANY collision with Bitcoin is bad
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level = maxlevel
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failed = True
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elif len(supported_mainnets) > 1:
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# collision between supported networks is still pretty bad
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level = logging.WARNING
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else:
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# collision between some unsupported networks is OK
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level = logging.INFO
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print_log(level, f"prefix {key}:", collision_str(bucket))
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return failed
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# slip44 collisions
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print("Checking SLIP44 prefix collisions...")
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slip44 = find_address_collisions(coins, "slip44")
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if print_collision_buckets(slip44, "key"):
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check_passed = False
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# only check address_type on coins that don't use cashaddr
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nocashaddr = [coin for coin in coins if not coin.get("cashaddr_prefix")]
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print("Checking address_type collisions...")
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address_type = find_address_collisions(nocashaddr, "address_type")
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if print_collision_buckets(address_type, "address type"):
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check_passed = False
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print("Checking address_type_p2sh collisions...")
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address_type_p2sh = find_address_collisions(nocashaddr, "address_type_p2sh")
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# we ignore failed checks on P2SH, because reasons
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print_collision_buckets(address_type_p2sh, "address type", logging.WARNING)
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return check_passed
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def check_dups(buckets, print_at_level=logging.ERROR):
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"""Analyze and pretty-print results of `coin_info.mark_duplicate_shortcuts`.
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`print_at_level` can be one of logging levels.
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The results are buckets of colliding symbols.
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If the collision is only between ERC20 tokens, it's DEBUG.
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If the collision includes one non-token, it's INFO.
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If the collision includes more than one non-token, it's ERROR and printed always.
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"""
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def coin_str(coin):
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"""Colorize coins. Tokens are cyan, nontokens are red. Coins that are NOT
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marked duplicate get a green asterisk.
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"""
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if coin_info.is_token(coin):
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color = "cyan"
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else:
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color = "red"
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highlighted = highlight_key(coin, color)
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if not coin.get("duplicate"):
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prefix = crayon("green", "*", bold=True)
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else:
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prefix = ""
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return f"{prefix}{highlighted}"
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check_passed = True
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for symbol in sorted(buckets.keys()):
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bucket = buckets[symbol]
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if not bucket:
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continue
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nontokens = [coin for coin in bucket if not coin_info.is_token(coin)]
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# string generation
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dup_str = ", ".join(coin_str(coin) for coin in bucket)
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if not nontokens:
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level = logging.DEBUG
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elif len(nontokens) == 1:
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level = logging.INFO
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else:
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level = logging.ERROR
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check_passed = False
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# deciding whether to print
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if level < print_at_level:
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continue
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if symbol == "_override":
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print_log(level, "force-set duplicates:", dup_str)
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else:
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print_log(level, f"duplicate symbol {symbol}:", dup_str)
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return check_passed
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def check_backends(coins):
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check_passed = True
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for coin in coins:
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genesis_block = coin.get("hash_genesis_block")
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if not genesis_block:
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continue
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backends = coin.get("blockbook", []) + coin.get("bitcore", [])
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for backend in backends:
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print("checking", backend, "... ", end="", flush=True)
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try:
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j = requests.get(backend + "/api/block-index/0").json()
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if j["blockHash"] != genesis_block:
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raise RuntimeError("genesis block mismatch")
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except Exception as e:
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print(e)
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check_passed = False
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else:
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print("OK")
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return check_passed
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def check_icons(coins):
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check_passed = True
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for coin in coins:
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key = coin["key"]
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icon_file = coin.get("icon")
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if not icon_file:
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print(key, ": missing icon")
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check_passed = False
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continue
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try:
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icon = Image.open(icon_file)
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except Exception:
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print(key, ": failed to open icon file", icon_file)
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check_passed = False
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continue
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if icon.size != (96, 96) or icon.mode != "RGBA":
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print(key, ": bad icon format (must be RGBA 96x96)")
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check_passed = False
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return check_passed
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IGNORE_NONUNIFORM_KEYS = frozenset(("unsupported", "duplicate", "notes"))
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def check_key_uniformity(coins):
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keysets = defaultdict(list)
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for coin in coins:
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keyset = frozenset(coin.keys()) | IGNORE_NONUNIFORM_KEYS
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keysets[keyset].append(coin)
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if len(keysets) <= 1:
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return True
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buckets = list(keysets.values())
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buckets.sort(key=lambda x: len(x))
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majority = buckets[-1]
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rest = sum(buckets[:-1], [])
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reference_keyset = set(majority[0].keys())
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for coin in rest:
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key = coin["key"]
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keyset = set(coin.keys())
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missing = ", ".join(reference_keyset - keyset)
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if missing:
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print_log(logging.ERROR, f"coin {key} has missing keys: {missing}")
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additional = ", ".join(keyset - reference_keyset)
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if additional:
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print_log(logging.ERROR, f"coin {key} has superfluous keys: {additional}")
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return False
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# ====== coindefs generators ======
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def convert_icon(icon):
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"""Convert PIL icon to TOIF format"""
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# TODO: move this to python-trezor at some point
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DIM = 32
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icon = icon.resize((DIM, DIM), Image.LANCZOS)
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# remove alpha channel, replace with black
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bg = Image.new("RGBA", icon.size, (0, 0, 0, 255))
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icon = Image.alpha_composite(bg, icon)
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# process pixels
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pix = icon.load()
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data = bytes()
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for y in range(DIM):
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for x in range(DIM):
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r, g, b, _ = pix[x, y]
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c = ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | ((b & 0xF8) >> 3)
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data += struct.pack(">H", c)
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z = zlib.compressobj(level=9, wbits=10)
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zdata = z.compress(data) + z.flush()
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zdata = zdata[2:-4] # strip header and checksum
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return zdata
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def coindef_from_dict(coin):
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proto = CoinDef()
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for fname, _, fflags in CoinDef.FIELDS.values():
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val = coin.get(fname)
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if val is None and fflags & protobuf.FLAG_REPEATED:
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val = []
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elif fname == "signed_message_header":
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val = val.encode("utf-8")
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elif fname == "hash_genesis_block":
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val = binascii.unhexlify(val)
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setattr(proto, fname, val)
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return proto
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def serialize_coindef(proto, icon):
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proto.icon = icon
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buf = io.BytesIO()
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protobuf.dump_message(buf, proto)
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return buf.getvalue()
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def sign(data):
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h = sha256(data).digest()
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sign_key = ed25519.SigningKey(b"A" * 32)
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return sign_key.sign(h)
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# ====== click command handlers ======
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@click.group()
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@click.option(
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"--colors/--no-colors",
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"-c/-C",
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default=sys.stdout.isatty(),
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help="Force colored output on/off",
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)
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def cli(colors):
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global USE_COLORS
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USE_COLORS = colors
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@cli.command()
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# fmt: off
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@click.option("--backend/--no-backend", "-b", default=False, help="Check blockbook/bitcore responses")
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@click.option("--icons/--no-icons", default=True, help="Check icon files")
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@click.option("-d", "--show-duplicates", type=click.Choice(("all", "nontoken", "errors")),
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default="errors", help="How much information about duplicate shortcuts should be shown.")
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# fmt: on
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def check(backend, icons, show_duplicates):
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"""Validate coin definitions.
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Checks that every btc-like coin is properly filled out, reports duplicate symbols,
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missing or invalid icons, backend responses, and uniform key information --
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i.e., that all coins of the same type have the same fields in their JSON data.
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Uniformity check ignores NEM mosaics and ERC20 tokens, where non-uniformity is
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expected.
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The `--show-duplicates` option can be set to:
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- all: all shortcut collisions are shown, including colliding ERC20 tokens
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- nontoken: only collisions that affect non-ERC20 coins are shown
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- errors: only collisions between non-ERC20 tokens are shown. This is the default,
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as a collision between two or more non-ERC20 tokens is an error.
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In the output, duplicate ERC tokens will be shown in cyan; duplicate non-tokens
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in red. An asterisk (*) next to symbol name means that even though it was detected
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as duplicate, it is still included in results.
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The collision detection checks that SLIP44 numbers don't collide between different
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mainnets (testnet collisions are allowed), that `address_prefix` doesn't collide
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with Bitcoin (other collisions are reported as warnings). `address_prefix_p2sh`
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is also checked but we have a bunch of collisions there and can't do much
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about them, so it's not an error.
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In the collision checks, Bitcoin is shown in red, other mainnets in blue,
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testnets in green and unsupported networks in gray, marked with `(X)` for
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non-colored output.
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"""
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if backend and requests is None:
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raise click.ClickException("You must install requests for backend check")
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if icons and not CAN_BUILD_DEFS:
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raise click.ClickException("Missing requirements for icon check")
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defs, buckets = coin_info.coin_info_with_duplicates()
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all_checks_passed = True
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print("Checking BTC-like coins...")
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if not check_btc(defs.bitcoin):
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all_checks_passed = False
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if show_duplicates == "all":
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dup_level = logging.DEBUG
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elif show_duplicates == "nontoken":
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dup_level = logging.INFO
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else:
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dup_level = logging.ERROR
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print("Checking unexpected duplicates...")
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if not check_dups(buckets, dup_level):
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all_checks_passed = False
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if icons:
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print("Checking icon files...")
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if not check_icons(defs.bitcoin):
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all_checks_passed = False
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if backend:
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print("Checking backend responses...")
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if not check_backends(defs.bitcoin):
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all_checks_passed = False
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print("Checking key uniformity...")
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for cointype, coinlist in defs.items():
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if cointype in ("erc20", "nem"):
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continue
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if not check_key_uniformity(coinlist):
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all_checks_passed = False
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if not all_checks_passed:
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print("Some checks failed.")
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sys.exit(1)
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else:
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print("Everything is OK.")
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@cli.command()
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@click.option("-o", "--outfile", type=click.File(mode="w"), default="./coins.json")
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def coins_json(outfile):
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"""Generate coins.json for consumption in python-trezor and Connect/Wallet"""
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coins = coin_info.coin_info().bitcoin
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support_info = coin_info.support_info(coins)
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by_name = {}
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for coin in coins:
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coin["support"] = support_info[coin["key"]]
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by_name[coin["name"]] = coin
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with outfile:
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json.dump(by_name, outfile, indent=4, sort_keys=True)
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outfile.write("\n")
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@cli.command()
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@click.option("-o", "--outfile", type=click.File(mode="w"), default="./coindefs.json")
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def coindefs(outfile):
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"""Generate signed coin definitions for python-trezor and others
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This is currently unused but should enable us to add new coins without having to
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update firmware.
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"""
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coins = coin_info.coin_info().bitcoin
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coindefs = {}
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for coin in coins:
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key = coin["key"]
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icon = Image.open(coin["icon"])
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ser = serialize_coindef(coindef_from_dict(coin), convert_icon(icon))
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sig = sign(ser)
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definition = binascii.hexlify(sig + ser).decode("ascii")
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coindefs[key] = definition
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with outfile:
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json.dump(coindefs, outfile, indent=4, sort_keys=True)
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outfile.write("\n")
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@cli.command()
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# fmt: off
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@click.argument("paths", metavar="[path]...", nargs=-1)
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@click.option("-o", "--outfile", type=click.File("w"), help="Alternate output file")
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@click.option("-v", "--verbose", is_flag=True, help="Print rendered file names")
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# fmt: on
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def render(paths, outfile, verbose):
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"""Generate source code from Mako templates.
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For every "foo.bar.mako" filename passed, runs the template and
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saves the result as "foo.bar". For every directory name passed,
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processes all ".mako" files found in that directory.
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If `-o` is specified, renders a single file into the specified outfile.
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If no arguments are given, processes the current directory.
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"""
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if not CAN_RENDER:
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raise click.ClickException("Please install 'mako' and 'munch'")
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if outfile and (len(paths) != 1 or not os.path.isfile(paths[0])):
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raise click.ClickException("Option -o can only be used with single input file")
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# prepare defs
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defs = coin_info.coin_info()
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support_info = coin_info.support_info(defs)
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# munch dicts - make them attribute-accessible
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for key, value in defs.items():
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defs[key] = [Munch(coin) for coin in value]
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for key, value in support_info.items():
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support_info[key] = Munch(value)
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def do_render(src, dst):
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if verbose:
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click.echo("Rendering {} => {}".format(src, dst))
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render_file(src, dst, defs, support_info)
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# single in-out case
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if outfile:
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do_render(paths[0], outfile)
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return
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# find files in directories
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if not paths:
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paths = ["."]
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files = []
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for path in paths:
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if not os.path.exists(path):
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click.echo("Path {} does not exist".format(path))
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elif os.path.isdir(path):
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files += glob.glob(os.path.join(path, "*.mako"))
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else:
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files.append(path)
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# render each file
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for file in files:
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if not file.endswith(".mako"):
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click.echo("File {} does not end with .mako".format(file))
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else:
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target = file[: -len(".mako")]
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with open(target, "w") as dst:
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do_render(file, dst)
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if __name__ == "__main__":
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cli()
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