forked from LBRYCommunity/lbry-sdk
117 lines
3.1 KiB
Python
117 lines
3.1 KiB
Python
import logging
|
|
import os
|
|
import re
|
|
from decimal import Decimal
|
|
import json
|
|
from .constants import NO_SIGNATURE
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
def normalize_version(v):
|
|
return [int(x) for x in re.sub(r'(\.0+)*$', '', v).split(".")]
|
|
|
|
|
|
def json_decode(x):
|
|
try:
|
|
return json.loads(x, parse_float=Decimal)
|
|
except:
|
|
return x
|
|
|
|
|
|
def user_dir():
|
|
if "HOME" in os.environ:
|
|
return os.path.join(os.environ["HOME"], ".lbryum")
|
|
elif "APPDATA" in os.environ:
|
|
return os.path.join(os.environ["APPDATA"], "LBRYum")
|
|
elif "LOCALAPPDATA" in os.environ:
|
|
return os.path.join(os.environ["LOCALAPPDATA"], "LBRYum")
|
|
elif 'ANDROID_DATA' in os.environ:
|
|
try:
|
|
import jnius
|
|
env = jnius.autoclass('android.os.Environment')
|
|
_dir = env.getExternalStorageDirectory().getPath()
|
|
return _dir + '/lbryum/'
|
|
except ImportError:
|
|
pass
|
|
return "/sdcard/lbryum/"
|
|
else:
|
|
# raise Exception("No home directory found in environment variables.")
|
|
return
|
|
|
|
|
|
def format_satoshis(x, is_diff=False, num_zeros=0, decimal_point=8, whitespaces=False):
|
|
from locale import localeconv
|
|
if x is None:
|
|
return 'unknown'
|
|
x = int(x) # Some callers pass Decimal
|
|
scale_factor = pow(10, decimal_point)
|
|
integer_part = "{:n}".format(int(abs(x) / scale_factor))
|
|
if x < 0:
|
|
integer_part = '-' + integer_part
|
|
elif is_diff:
|
|
integer_part = '+' + integer_part
|
|
dp = localeconv()['decimal_point']
|
|
fract_part = ("{:0" + str(decimal_point) + "}").format(abs(x) % scale_factor)
|
|
fract_part = fract_part.rstrip('0')
|
|
if len(fract_part) < num_zeros:
|
|
fract_part += "0" * (num_zeros - len(fract_part))
|
|
result = integer_part + dp + fract_part
|
|
if whitespaces:
|
|
result += " " * (decimal_point - len(fract_part))
|
|
result = " " * (15 - len(result)) + result
|
|
return result.decode('utf8')
|
|
|
|
|
|
def rev_hex(s):
|
|
return s.decode('hex')[::-1].encode('hex')
|
|
|
|
|
|
def int_to_hex(i, length=1):
|
|
s = hex(i)[2:].rstrip('L')
|
|
s = "0" * (2 * length - len(s)) + s
|
|
return rev_hex(s)
|
|
|
|
|
|
def hex_to_int(s):
|
|
return int('0x' + s[::-1].encode('hex'), 16)
|
|
|
|
|
|
def var_int(i):
|
|
# https://en.bitcoin.it/wiki/Protocol_specification#Variable_length_integer
|
|
if i < 0xfd:
|
|
return int_to_hex(i)
|
|
elif i <= 0xffff:
|
|
return "fd" + int_to_hex(i, 2)
|
|
elif i <= 0xffffffff:
|
|
return "fe" + int_to_hex(i, 4)
|
|
else:
|
|
return "ff" + int_to_hex(i, 8)
|
|
|
|
|
|
# This function comes from bitcointools, bct-LICENSE.txt.
|
|
def long_hex(bytes):
|
|
return bytes.encode('hex_codec')
|
|
|
|
|
|
# This function comes from bitcointools, bct-LICENSE.txt.
|
|
def short_hex(bytes):
|
|
t = bytes.encode('hex_codec')
|
|
if len(t) < 11:
|
|
return t
|
|
return t[0:4] + "..." + t[-4:]
|
|
|
|
|
|
def parse_sig(x_sig):
|
|
s = []
|
|
for sig in x_sig:
|
|
if sig[-2:] == '01':
|
|
s.append(sig[:-2])
|
|
else:
|
|
assert sig == NO_SIGNATURE
|
|
s.append(None)
|
|
return s
|
|
|
|
|
|
def is_extended_pubkey(x_pubkey):
|
|
return x_pubkey[0:2] in ['fe', 'ff']
|