1 import os, sys, re, json
4 from datetime import datetime
8 class MyEncoder(json.JSONEncoder):
9 def default(self, obj):
10 from transaction import Transaction
11 if isinstance(obj, Transaction):
13 return super(MyEncoder, self).default(obj)
20 def print_error(*args):
21 if not is_verbose: return
22 args = [str(item) for item in args]
23 sys.stderr.write(" ".join(args) + "\n")
28 args = [str(item) for item in args]
29 sys.stdout.write(" ".join(args) + "\n")
34 s = json.dumps(obj, sort_keys = True, indent = 4, cls=MyEncoder)
37 sys.stdout.write(s + "\n")
42 if "HOME" in os.environ:
43 return os.path.join(os.environ["HOME"], ".electrum")
44 elif "APPDATA" in os.environ:
45 return os.path.join(os.environ["APPDATA"], "Electrum")
46 elif "LOCALAPPDATA" in os.environ:
47 return os.path.join(os.environ["LOCALAPPDATA"], "Electrum")
48 elif 'ANDROID_DATA' in os.environ:
49 return "/sdcard/electrum/"
51 #raise Exception("No home directory found in environment variables.")
55 """Find the path to the application data directory; add an electrum folder and return path."""
56 if platform.system() == "Windows":
57 return os.path.join(os.environ["APPDATA"], "Electrum")
58 elif platform.system() == "Linux":
59 return os.path.join(sys.prefix, "share", "electrum")
60 elif (platform.system() == "Darwin" or
61 platform.system() == "DragonFly" or
62 platform.system() == "OpenBSD" or
63 platform.system() == "NetBSD"):
64 return "/Library/Application Support/Electrum"
66 raise Exception("Unknown system")
69 def get_resource_path(*args):
70 return os.path.join(".", *args)
74 """Return path to the data folder."""
76 prefix_path = os.path.dirname(sys.argv[0])
77 local_data = os.path.join(prefix_path, "data")
81 def format_satoshis(x, is_diff=False, num_zeros = 0, decimal_point = 8, whitespaces=False):
82 from decimal import Decimal
84 sign, digits, exp = s.as_tuple()
85 digits = map(str, digits)
86 while len(digits) < decimal_point + 1:
88 digits.insert(-decimal_point,'.')
89 s = ''.join(digits).rstrip('0')
96 s += "0"*( 1 + num_zeros - ( len(s) - p ))
98 s += " "*( 1 + decimal_point - ( len(s) - p ))
99 s = " "*( 13 - decimal_point - ( p )) + s
103 # Takes a timestamp and returns a string with the approximation of the age
104 def age(from_date, since_date = None, target_tz=None, include_seconds=False):
105 if from_date is None:
108 from_date = datetime.fromtimestamp(from_date)
109 if since_date is None:
110 since_date = datetime.now(target_tz)
112 distance_in_time = since_date - from_date
113 distance_in_seconds = int(round(abs(distance_in_time.days * 86400 + distance_in_time.seconds)))
114 distance_in_minutes = int(round(distance_in_seconds/60))
116 if distance_in_minutes <= 1:
118 for remainder in [5, 10, 20]:
119 if distance_in_seconds < remainder:
120 return "less than %s seconds ago" % remainder
121 if distance_in_seconds < 40:
122 return "half a minute ago"
123 elif distance_in_seconds < 60:
124 return "less than a minute ago"
126 return "1 minute ago"
128 if distance_in_minutes == 0:
129 return "less than a minute ago"
131 return "1 minute ago"
132 elif distance_in_minutes < 45:
133 return "%s minutes ago" % distance_in_minutes
134 elif distance_in_minutes < 90:
135 return "about 1 hour ago"
136 elif distance_in_minutes < 1440:
137 return "about %d hours ago" % (round(distance_in_minutes / 60.0))
138 elif distance_in_minutes < 2880:
140 elif distance_in_minutes < 43220:
141 return "%d days ago" % (round(distance_in_minutes / 1440))
142 elif distance_in_minutes < 86400:
143 return "about 1 month ago"
144 elif distance_in_minutes < 525600:
145 return "%d months ago" % (round(distance_in_minutes / 43200))
146 elif distance_in_minutes < 1051200:
147 return "about 1 year ago"
149 return "over %d years ago" % (round(distance_in_minutes / 525600))
155 _ud = re.compile('%([0-9a-hA-H]{2})', re.MULTILINE)
156 urldecode = lambda x: _ud.sub(lambda m: chr(int(m.group(1), 16)), x)
159 from decimal import Decimal
161 o = url[8:].split('?')
164 params = o[1].split('&')
168 amount = label = message = signature = identity = ''
174 m = re.match('([0-9\.]+)X([0-9])', uv)
176 k = int(m.group(2)) - 8
177 amount = Decimal(m.group(1)) * pow( Decimal(10) , k)
184 elif k == 'signature':
185 identity, signature = uv.split(':')
186 url = url.replace('&%s=%s'%(k,v),'')
190 return address, amount, label, message, signature, identity, url
193 # Python bug (http://bugs.python.org/issue1927) causes raw_input
194 # to be redirected improperly between stdin/stderr on Unix systems
195 def raw_input(prompt=None):
197 sys.stdout.write(prompt)
198 return builtin_raw_input()
200 builtin_raw_input = __builtin__.raw_input
201 __builtin__.raw_input = raw_input