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374 lines
10 KiB
374 lines
10 KiB
import os, sys, re, json
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import platform
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import shutil
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from datetime import datetime
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import urlparse
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import urllib
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import threading
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class NotEnoughFunds(Exception): pass
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class InvalidPassword(Exception):
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def __str__(self):
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from i18n import _
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return _("Incorrect password")
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class MyEncoder(json.JSONEncoder):
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def default(self, obj):
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from transaction import Transaction
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if isinstance(obj, Transaction):
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return obj.as_dict()
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return super(MyEncoder, self).default(obj)
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class DaemonThread(threading.Thread):
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""" daemon thread that terminates cleanly """
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def __init__(self):
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threading.Thread.__init__(self)
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self.parent_thread = threading.currentThread()
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self.running = False
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self.running_lock = threading.Lock()
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def start(self):
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with self.running_lock:
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self.running = True
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return threading.Thread.start(self)
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def is_running(self):
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with self.running_lock:
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return self.running and self.parent_thread.is_alive()
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def stop(self):
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with self.running_lock:
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self.running = False
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def print_error(self, *msg):
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print_error("[%s]"%self.__class__.__name__, *msg)
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is_verbose = False
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def set_verbosity(b):
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global is_verbose
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is_verbose = b
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def print_error(*args):
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if not is_verbose: return
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print_stderr(*args)
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def print_stderr(*args):
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args = [str(item) for item in args]
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sys.stderr.write(" ".join(args) + "\n")
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sys.stderr.flush()
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def print_msg(*args):
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# Stringify args
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args = [str(item) for item in args]
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sys.stdout.write(" ".join(args) + "\n")
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sys.stdout.flush()
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def print_json(obj):
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try:
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s = json.dumps(obj, sort_keys = True, indent = 4, cls=MyEncoder)
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except TypeError:
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s = repr(obj)
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sys.stdout.write(s + "\n")
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sys.stdout.flush()
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def user_dir():
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if "HOME" in os.environ:
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return os.path.join(os.environ["HOME"], ".electrum")
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elif "APPDATA" in os.environ:
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return os.path.join(os.environ["APPDATA"], "Electrum")
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elif "LOCALAPPDATA" in os.environ:
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return os.path.join(os.environ["LOCALAPPDATA"], "Electrum")
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elif 'ANDROID_DATA' in os.environ:
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return "/sdcard/electrum/"
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else:
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#raise Exception("No home directory found in environment variables.")
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return
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def format_satoshis(x, is_diff=False, num_zeros = 0, decimal_point = 8, whitespaces=False):
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from decimal import Decimal
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s = Decimal(x)
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sign, digits, exp = s.as_tuple()
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digits = map(str, digits)
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while len(digits) < decimal_point + 1:
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digits.insert(0,'0')
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digits.insert(-decimal_point,'.')
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s = ''.join(digits).rstrip('0')
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if sign:
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s = '-' + s
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elif is_diff:
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s = "+" + s
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p = s.find('.')
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s += "0"*( 1 + num_zeros - ( len(s) - p ))
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if whitespaces:
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s += " "*( 1 + decimal_point - ( len(s) - p ))
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s = " "*( 13 - decimal_point - ( p )) + s
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return s
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# Takes a timestamp and returns a string with the approximation of the age
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def age(from_date, since_date = None, target_tz=None, include_seconds=False):
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if from_date is None:
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return "Unknown"
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from_date = datetime.fromtimestamp(from_date)
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if since_date is None:
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since_date = datetime.now(target_tz)
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distance_in_time = since_date - from_date
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distance_in_seconds = int(round(abs(distance_in_time.days * 86400 + distance_in_time.seconds)))
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distance_in_minutes = int(round(distance_in_seconds/60))
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if distance_in_minutes <= 1:
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if include_seconds:
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for remainder in [5, 10, 20]:
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if distance_in_seconds < remainder:
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return "less than %s seconds ago" % remainder
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if distance_in_seconds < 40:
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return "half a minute ago"
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elif distance_in_seconds < 60:
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return "less than a minute ago"
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else:
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return "1 minute ago"
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else:
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if distance_in_minutes == 0:
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return "less than a minute ago"
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else:
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return "1 minute ago"
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elif distance_in_minutes < 45:
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return "%s minutes ago" % distance_in_minutes
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elif distance_in_minutes < 90:
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return "about 1 hour ago"
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elif distance_in_minutes < 1440:
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return "about %d hours ago" % (round(distance_in_minutes / 60.0))
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elif distance_in_minutes < 2880:
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return "1 day ago"
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elif distance_in_minutes < 43220:
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return "%d days ago" % (round(distance_in_minutes / 1440))
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elif distance_in_minutes < 86400:
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return "about 1 month ago"
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elif distance_in_minutes < 525600:
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return "%d months ago" % (round(distance_in_minutes / 43200))
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elif distance_in_minutes < 1051200:
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return "about 1 year ago"
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else:
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return "over %d years ago" % (round(distance_in_minutes / 525600))
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# URL decode
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#_ud = re.compile('%([0-9a-hA-H]{2})', re.MULTILINE)
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#urldecode = lambda x: _ud.sub(lambda m: chr(int(m.group(1), 16)), x)
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def parse_URI(uri):
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import bitcoin
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from decimal import Decimal
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if ':' not in uri:
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assert bitcoin.is_address(uri)
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return uri, None, None, None, None
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u = urlparse.urlparse(uri)
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assert u.scheme == 'bitcoin'
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address = u.path
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# python for android fails to parse query
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if address.find('?') > 0:
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address, query = u.path.split('?')
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pq = urlparse.parse_qs(query)
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else:
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pq = urlparse.parse_qs(u.query)
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for k, v in pq.items():
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if len(v)!=1:
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raise Exception('Duplicate Key', k)
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amount = label = message = request_url = ''
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if 'amount' in pq:
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am = pq['amount'][0]
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m = re.match('([0-9\.]+)X([0-9])', am)
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if m:
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k = int(m.group(2)) - 8
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amount = Decimal(m.group(1)) * pow( Decimal(10) , k)
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else:
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amount = Decimal(am) * 100000000
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if 'message' in pq:
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message = pq['message'][0].decode('utf8')
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if 'label' in pq:
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label = pq['label'][0]
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if 'r' in pq:
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request_url = pq['r'][0]
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if request_url != '':
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return address, amount, label, message, request_url
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assert bitcoin.is_address(address)
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return address, amount, label, message, request_url
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def create_URI(addr, amount, message):
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import bitcoin
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if not bitcoin.is_address(addr):
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return ""
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query = []
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if amount:
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query.append('amount=%s'%format_satoshis(amount))
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if message:
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if type(message) == unicode:
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message = message.encode('utf8')
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query.append('message=%s'%urllib.quote(message))
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p = urlparse.ParseResult(scheme='bitcoin', netloc='', path=addr, params='', query='&'.join(query), fragment='')
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return urlparse.urlunparse(p)
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# Python bug (http://bugs.python.org/issue1927) causes raw_input
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# to be redirected improperly between stdin/stderr on Unix systems
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def raw_input(prompt=None):
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if prompt:
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sys.stdout.write(prompt)
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return builtin_raw_input()
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import __builtin__
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builtin_raw_input = __builtin__.raw_input
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__builtin__.raw_input = raw_input
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def parse_json(message):
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n = message.find('\n')
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if n==-1:
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return None, message
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try:
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j = json.loads( message[0:n] )
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except:
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j = None
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return j, message[n+1:]
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class timeout(Exception):
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pass
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import socket
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import errno
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import json
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import ssl
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import traceback
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import time
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class SocketPipe:
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def __init__(self, socket):
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self.socket = socket
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self.message = ''
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self.set_timeout(0.1)
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def set_timeout(self, t):
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self.socket.settimeout(t)
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def get(self):
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while True:
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response, self.message = parse_json(self.message)
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if response:
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return response
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try:
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data = self.socket.recv(1024)
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except socket.timeout:
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raise timeout
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except ssl.SSLError:
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raise timeout
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except socket.error, err:
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if err.errno == 60:
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raise timeout
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elif err.errno in [11, 10035]:
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print_error("socket errno", err.errno)
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time.sleep(0.1)
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continue
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else:
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print_error("pipe: socket error", err)
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data = ''
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except:
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traceback.print_exc(file=sys.stderr)
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data = ''
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if not data:
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self.socket.close()
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return None
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self.message += data
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def send(self, request):
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out = json.dumps(request) + '\n'
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self._send(out)
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def send_all(self, requests):
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out = ''.join(map(lambda x: json.dumps(x) + '\n', requests))
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self._send(out)
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def _send(self, out):
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while out:
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try:
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sent = self.socket.send(out)
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out = out[sent:]
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except ssl.SSLError as e:
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print_error("SSLError:", e)
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time.sleep(0.1)
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continue
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except socket.error as e:
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if e[0] in (errno.EWOULDBLOCK,errno.EAGAIN):
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print_error("EAGAIN: retrying")
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time.sleep(0.1)
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continue
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elif e[0] in ['timed out', 'The write operation timed out']:
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print_error("socket timeout, retry")
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time.sleep(0.1)
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continue
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else:
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traceback.print_exc(file=sys.stdout)
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raise e
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import Queue
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class QueuePipe:
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def __init__(self, send_queue=None, get_queue=None):
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self.send_queue = send_queue if send_queue else Queue.Queue()
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self.get_queue = get_queue if get_queue else Queue.Queue()
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self.set_timeout(0.1)
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def get(self):
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try:
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return self.get_queue.get(timeout=self.timeout)
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except Queue.Empty:
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raise timeout
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def get_all(self):
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responses = []
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while True:
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try:
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r = self.get_queue.get_nowait()
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responses.append(r)
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except Queue.Empty:
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break
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return responses
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def set_timeout(self, t):
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self.timeout = t
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def send(self, request):
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self.send_queue.put(request)
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def send_all(self, requests):
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for request in requests:
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self.send(request)
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