3 from decimal import Decimal
5 from PyQt4.QtGui import *
6 from PyQt4.QtCore import *
7 import PyQt4.QtCore as QtCore
8 import PyQt4.QtGui as QtGui
10 from electrum_gui.qrcodewidget import QRCodeWidget
11 from electrum_gui import bmp, pyqrnative
12 from electrum_gui.i18n import _
15 ALIAS_REGEXP = '^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$'
19 from electrum_gui import BasePlugin
20 class Plugin(BasePlugin):
22 def __init__(self, gui):
23 BasePlugin.__init__(self, gui, 'aliases', 'Aliases', _('Retrieve aliases using http.'))
24 self.aliases = self.config.get('aliases', {}) # aliases for addresses
25 self.authorities = self.config.get('authorities', {}) # trusted addresses
26 self.receipts = self.config.get('receipts',{}) # signed URIs
29 def timer_actions(self):
30 if self.gui.payto_e.hasFocus():
32 r = unicode( self.gui.payto_e.text() )
33 if r != self.gui.previous_payto_e:
34 self.gui.previous_payto_e = r
36 if re.match('^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$', r):
38 to_address = self.get_alias(r, True, self.gui.show_message, self.gui.question)
42 s = r + ' <' + to_address + '>'
43 self.gui.payto_e.setText(s)
46 def get_alias(self, alias, interactive = False, show_message=None, question = None):
48 target, signing_address, auth_name = read_alias(self, alias)
49 except BaseException, e:
50 # raise exception if verify fails (verify the chain)
52 show_message("Alias error: " + str(e))
55 print target, signing_address, auth_name
58 a = self.aliases.get(alias)
60 msg = "Warning: the alias '%s' is self-signed.\nThe signing address is %s.\n\nDo you want to add this alias to your list of contacts?"%(alias,signing_address)
61 if interactive and question( msg ):
62 self.aliases[alias] = (signing_address, target)
66 if signing_address != a[0]:
67 msg = "Warning: the key of alias '%s' has changed since your last visit! It is possible that someone is trying to do something nasty!!!\nDo you accept to change your trusted key?"%alias
68 if interactive and question( msg ):
69 self.aliases[alias] = (signing_address, target)
73 if signing_address not in self.authorities.keys():
74 msg = "The alias: '%s' links to %s\n\nWarning: this alias was signed by an unknown key.\nSigning authority: %s\nSigning address: %s\n\nDo you want to add this key to your list of trusted keys?"%(alias,target,auth_name,signing_address)
75 if interactive and question( msg ):
76 self.authorities[signing_address] = auth_name
81 self.aliases[alias] = (signing_address, target)
87 def read_alias(self, alias):
90 m1 = re.match('([\w\-\.]+)@((\w[\w\-]+\.)+[\w\-]+)', alias)
91 m2 = re.match('((\w[\w\-]+\.)+[\w\-]+)', alias)
93 url = 'https://' + m1.group(2) + '/bitcoin.id/' + m1.group(1)
95 url = 'https://' + alias + '/bitcoin.id'
99 lines = urllib.urlopen(url).readlines()
104 line = lines[0].strip().split(':')
107 target = signing_addr = line[0]
109 target, auth_name, signing_addr, signature = line
110 msg = "alias:%s:%s:%s"%(alias,target,auth_name)
112 EC_KEY.verify_message(signing_addr, signature, msg)
114 # other lines are signed updates
115 for line in lines[1:]:
117 if not line: continue
118 line = line.split(':')
121 target, signature = line
122 EC_KEY.verify_message(previous, signature, "alias:%s:%s"%(alias,target))
124 if not is_valid(target):
125 raise ValueError("Invalid bitcoin address")
127 return target, signing_addr, auth_name
130 def set_url(self, url, show_message, question):
131 payto, amount, label, message, signature, identity, url = util.parse_url(url)
133 if re.match('^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$', identity):
134 signing_address = get_alias(identity, True, show_message, question)
135 elif is_valid(identity):
136 signing_address = identity
138 signing_address = None
139 if not signing_address:
142 EC_KEY.verify_message(signing_address, signature, url )
143 self.receipt = (signing_address, signature, url)
145 show_message('Warning: the URI contains a bad signature.\nThe identity of the recipient cannot be verified.')
146 address = amount = label = identity = message = ''
148 if re.match('^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$', address):
149 payto_address = get_alias(address, True, show_message, question)
151 address = address + ' <' + payto_address + '>'
153 return address, amount, label, message, signature, identity, url
157 def update_contacts_tab(self, l):
159 for alias, v in self.aliases.items():
161 alias_targets.append(target)
162 item = QTreeWidgetItem( [ target, alias, '-'] )
163 item.setBackgroundColor(0, QColor('lightgray'))
164 item.setData(0,32,False)
165 item.setData(0,33,alias + ' <' + target + '>')
166 l.insertTopLevelItem(0,item)
169 def update_completions(self, l):
170 l[:] = l + self.aliases.keys()
173 def create_contact_menu(self, menu, item):
174 label = unicode(item.text(1))
175 if label in self.aliases.keys():
176 addr = unicode(item.text(0))
177 label = unicode(item.text(1))
178 menu.addAction(_("View alias details"), lambda: self.show_contact_details(label))
179 menu.addAction(_("Delete alias"), lambda: delete_alias(self, label))
182 def show_contact_details(self, m):
183 a = self.aliases.get(m)
185 if a[0] in self.authorities.keys():
186 s = self.authorities.get(a[0])
189 msg = _('Alias:')+' '+ m + '\n'+_('Target address:')+' '+ a[1] + '\n\n'+_('Signed by:')+' ' + s + '\n'+_('Signing address:')+' ' + a[0]
190 QMessageBox.information(self.gui, 'Alias', msg, 'OK')
193 def delete_alias(self, x):
194 if self.gui.question(_("Do you want to remove")+" %s "%x +_("from your list of contacts?")):
195 if x in self.aliases:
197 self.update_history_tab()
198 self.update_contacts_tab()
199 self.update_completions()