1 import os, sys, re, json
4 from datetime import datetime
9 class MyEncoder(json.JSONEncoder):
10 def default(self, obj):
11 from transaction import Transaction
12 if isinstance(obj, Transaction):
14 return super(MyEncoder, self).default(obj)
21 def print_error(*args):
22 if not is_verbose: return
23 args = [str(item) for item in args]
24 sys.stderr.write(" ".join(args) + "\n")
29 args = [str(item) for item in args]
30 sys.stdout.write(" ".join(args) + "\n")
35 s = json.dumps(obj, sort_keys = True, indent = 4, cls=MyEncoder)
38 sys.stdout.write(s + "\n")
43 if "HOME" in os.environ:
44 return os.path.join(os.environ["HOME"], ".electrum")
45 elif "APPDATA" in os.environ:
46 return os.path.join(os.environ["APPDATA"], "Electrum")
47 elif "LOCALAPPDATA" in os.environ:
48 return os.path.join(os.environ["LOCALAPPDATA"], "Electrum")
50 #raise BaseException("No home directory found in environment variables.")
54 """Find the path to the application data directory; add an electrum folder and return path."""
55 if platform.system() == "Windows":
56 return os.path.join(os.environ["APPDATA"], "Electrum")
57 elif platform.system() == "Linux":
58 return os.path.join(sys.prefix, "share", "electrum")
59 elif (platform.system() == "Darwin" or
60 platform.system() == "DragonFly" or
61 platform.system() == "NetBSD"):
62 return "/Library/Application Support/Electrum"
64 raise Exception("Unknown system")
67 def get_resource_path(*args):
68 return os.path.join(".", *args)
72 """Return path to the data folder."""
74 prefix_path = os.path.dirname(sys.argv[0])
75 local_data = os.path.join(prefix_path, "data")
79 def format_satoshis(x, is_diff=False, num_zeros = 0, decimal_point = 8, whitespaces=False):
80 from decimal import Decimal
82 sign, digits, exp = s.as_tuple()
83 digits = map(str, digits)
84 while len(digits) < decimal_point + 1:
86 digits.insert(-decimal_point,'.')
87 s = ''.join(digits).rstrip('0')
94 s += "0"*( 1 + num_zeros - ( len(s) - p ))
96 s += " "*( 1 + decimal_point - ( len(s) - p ))
97 s = " "*( 13 - decimal_point - ( p )) + s
101 # Takes a timestamp and returns a string with the approximation of the age
102 def age(from_date, since_date = None, target_tz=None, include_seconds=False):
103 if from_date is None:
106 from_date = datetime.fromtimestamp(from_date)
107 if since_date is None:
108 since_date = datetime.now(target_tz)
110 distance_in_time = since_date - from_date
111 distance_in_seconds = int(round(abs(distance_in_time.days * 86400 + distance_in_time.seconds)))
112 distance_in_minutes = int(round(distance_in_seconds/60))
114 if distance_in_minutes <= 1:
116 for remainder in [5, 10, 20]:
117 if distance_in_seconds < remainder:
118 return "less than %s seconds ago" % remainder
119 if distance_in_seconds < 40:
120 return "half a minute ago"
121 elif distance_in_seconds < 60:
122 return "less than a minute ago"
124 return "1 minute ago"
126 if distance_in_minutes == 0:
127 return "less than a minute ago"
129 return "1 minute ago"
130 elif distance_in_minutes < 45:
131 return "%s minutes ago" % distance_in_minutes
132 elif distance_in_minutes < 90:
133 return "about 1 hour ago"
134 elif distance_in_minutes < 1440:
135 return "about %d hours ago" % (round(distance_in_minutes / 60.0))
136 elif distance_in_minutes < 2880:
138 elif distance_in_minutes < 43220:
139 return "%d days ago" % (round(distance_in_minutes / 1440))
140 elif distance_in_minutes < 86400:
141 return "about 1 month ago"
142 elif distance_in_minutes < 525600:
143 return "%d months ago" % (round(distance_in_minutes / 43200))
144 elif distance_in_minutes < 1051200:
145 return "about 1 year ago"
147 return "over %d years ago" % (round(distance_in_minutes / 525600))
153 _ud = re.compile('%([0-9a-hA-H]{2})', re.MULTILINE)
154 urldecode = lambda x: _ud.sub(lambda m: chr(int(m.group(1), 16)), x)
157 o = url[8:].split('?')
160 params = o[1].split('&')
164 amount = label = message = signature = identity = ''
168 if k == 'amount': amount = uv
169 elif k == 'message': message = uv
170 elif k == 'label': label = uv
171 elif k == 'signature':
172 identity, signature = uv.split(':')
173 url = url.replace('&%s=%s'%(k,v),'')
177 return address, amount, label, message, signature, identity, url