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470 lines
14 KiB
470 lines
14 KiB
#!/usr/bin/env python
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#
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# Electrum - lightweight Bitcoin client
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# Copyright (C) 2011 thomasv@gitorious
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import random, socket, ast, re
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import threading, traceback, sys, time, json, Queue
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from version import ELECTRUM_VERSION
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from util import print_error
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DEFAULT_TIMEOUT = 5
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DEFAULT_SERVERS = [ 'ecdsa.org:50001:t',
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'electrum.novit.ro:50001:t',
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'uncle-enzo.info:50001:t',
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'electrum.bytesized-hosting.com:50001:t'] # list of default servers
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proxy_modes = ['none', 'socks4', 'socks5', 'http' ]
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def replace_keys(obj, old_key, new_key):
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if isinstance(obj, dict):
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if old_key in obj:
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obj[new_key] = obj[old_key]
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del obj[old_key]
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for elem in obj.itervalues():
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replace_keys(elem, old_key, new_key)
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elif isinstance(obj, list):
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for elem in obj:
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replace_keys(elem, old_key, new_key)
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def old_to_new(d):
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replace_keys(d, 'blk_hash', 'block_hash')
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replace_keys(d, 'pos', 'index')
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replace_keys(d, 'nTime', 'timestamp')
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replace_keys(d, 'is_in', 'is_input')
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replace_keys(d, 'raw_scriptPubKey', 'raw_output_script')
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def parse_proxy_options(s):
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proxy = { "mode":"socks5", "host":"localhost" }
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args = s.split(':')
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n = 0
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if proxy_modes.count(args[n]) == 1:
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proxy["mode"] = args[n]
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n += 1
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if len(args) > n:
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proxy["host"] = args[n]
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n += 1
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if len(args) > n:
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proxy["port"] = args[n]
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else:
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proxy["port"] = "8080" if proxy["mode"] == "http" else "1080"
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return proxy
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class Interface(threading.Thread):
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def __init__(self, host, port, debug_server, proxy):
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threading.Thread.__init__(self)
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self.daemon = True
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self.host = host
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self.port = port
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self.proxy = proxy
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self.servers = [] # actual list from IRC
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self.rtime = 0
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self.bytes_received = 0
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self.is_connected = True
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self.poll_interval = 1
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#json
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self.message_id = 0
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self.responses = Queue.Queue()
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self.unanswered_requests = {}
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self.debug_server = debug_server
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def init_socket(self):
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pass
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def poke(self):
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# push a fake response so that the getting thread exits its loop
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self.responses.put(None)
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def queue_json_response(self, c):
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if self.debug_server:
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print "<--",c
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msg_id = c.get('id')
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error = c.get('error')
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if error:
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print "received error:", c
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return
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if msg_id is not None:
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method, params = self.unanswered_requests.pop(msg_id)
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result = c.get('result')
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else:
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# notification
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method = c.get('method')
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params = c.get('params')
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if method == 'blockchain.numblocks.subscribe':
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result = params[0]
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params = []
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elif method == 'blockchain.address.subscribe':
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addr = params[0]
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result = params[1]
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params = [addr]
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self.responses.put({'method':method, 'params':params, 'result':result})
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def subscribe(self, addresses):
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messages = []
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for addr in addresses:
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messages.append(('blockchain.address.subscribe', [addr]))
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self.send(messages)
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class PollingInterface(Interface):
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""" non-persistent connection. synchronous calls"""
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def __init__(self, host, port, debug_server, proxy):
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Interface.__init__(self, host, port, debug_server, proxy)
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self.session_id = None
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self.debug_server = debug_server
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def get_history(self, address):
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self.send([('blockchain.address.get_history', [address] )])
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def poll(self):
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pass
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#if is_new or wallet.remote_url:
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# self.was_updated = True
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# is_new = wallet.synchronize()
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# wallet.update_tx_history()
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# wallet.save()
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# return is_new
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#else:
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# return False
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def run(self):
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self.is_connected = True
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while self.is_connected:
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try:
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if self.session_id:
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self.poll()
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time.sleep(self.poll_interval)
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except socket.gaierror:
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break
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except socket.error:
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break
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except:
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traceback.print_exc(file=sys.stdout)
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break
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self.is_connected = False
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self.poke()
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class HttpStratumInterface(PollingInterface):
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def poll(self):
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self.send([])
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def send(self, messages):
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import urllib2, json, time, cookielib
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if self.proxy["mode"] != "none":
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import socks
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socks.setdefaultproxy(proxy_modes.index(self.proxy["mode"]), self.proxy["host"], int(self.proxy["port"]) )
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socks.wrapmodule(urllib2)
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cj = cookielib.CookieJar()
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opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
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urllib2.install_opener(opener)
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t1 = time.time()
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data = []
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for m in messages:
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method, params = m
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if type(params) != type([]): params = [params]
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data.append( { 'method':method, 'id':self.message_id, 'params':params } )
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self.unanswered_requests[self.message_id] = method, params
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self.message_id += 1
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if data:
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data_json = json.dumps(data)
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else:
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# poll with GET
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data_json = None
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host = 'http://%s:%d'%( self.host, self.port )
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headers = {'content-type': 'application/json'}
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if self.session_id:
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headers['cookie'] = 'SESSION=%s'%self.session_id
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req = urllib2.Request(host, data_json, headers)
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response_stream = urllib2.urlopen(req)
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for index, cookie in enumerate(cj):
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if cookie.name=='SESSION':
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self.session_id = cookie.value
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response = response_stream.read()
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self.bytes_received += len(response)
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if response:
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response = json.loads( response )
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if type(response) is not type([]):
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self.queue_json_response(response)
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else:
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for item in response:
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self.queue_json_response(item)
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if response:
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self.poll_interval = 1
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else:
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if self.poll_interval < 15:
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self.poll_interval += 1
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#print self.poll_interval, response
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self.rtime = time.time() - t1
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self.is_connected = True
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class TcpStratumInterface(Interface):
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"""json-rpc over persistent TCP connection, asynchronous"""
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def __init__(self, host, port, debug_server, proxy):
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Interface.__init__(self, host, port, debug_server, proxy)
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self.debug_server = debug_server
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def init_socket(self):
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global proxy_modes
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if self.proxy["mode"] == "none":
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self.s = socket.socket( socket.AF_INET, socket.SOCK_STREAM )
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else:
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import socks
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self.s = socks.socksocket()
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print "Using Proxy", self.proxy
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self.s.setproxy(proxy_modes.index(self.proxy["mode"]), self.proxy["host"], int(self.proxy["port"]) )
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self.s.settimeout(60)
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self.s.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
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try:
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self.s.connect(( self.host.encode('ascii'), int(self.port)))
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self.is_connected = True
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self.send([('server.version', [ELECTRUM_VERSION])])
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print "Connected to %s:%d"%(self.host,self.port)
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except:
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self.is_connected = False
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print_error("Not connected")
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def run(self):
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try:
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out = ''
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while self.is_connected:
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try: msg = self.s.recv(1024)
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except socket.timeout:
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# ping the server with server.version, as a real ping does not exist yet
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self.send([('server.version', [ELECTRUM_VERSION])])
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continue
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out += msg
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self.bytes_received += len(msg)
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if msg == '':
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self.is_connected = False
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print "Disconnected."
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while True:
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s = out.find('\n')
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if s==-1: break
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c = out[0:s]
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out = out[s+1:]
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c = json.loads(c)
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self.queue_json_response(c)
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except:
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traceback.print_exc(file=sys.stdout)
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self.is_connected = False
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print "Poking"
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self.poke()
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def send(self, messages):
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out = ''
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for m in messages:
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method, params = m
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request = json.dumps( { 'id':self.message_id, 'method':method, 'params':params } )
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self.unanswered_requests[self.message_id] = method, params
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if self.debug_server:
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print "-->",request
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self.message_id += 1
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out += request + '\n'
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while out:
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sent = self.s.send( out )
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out = out[sent:]
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def get_history(self, addr):
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self.send([('blockchain.address.get_history', [addr])])
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class WalletSynchronizer(threading.Thread):
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def __init__(self, wallet, loop=False, servers_loaded_callback=None, proxy=None):
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threading.Thread.__init__(self)
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self.daemon = True
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self.wallet = wallet
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self.loop = loop
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self.proxy = proxy
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self.init_interface()
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self.servers_loaded_callback = servers_loaded_callback
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def init_interface(self):
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try:
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host, port, protocol = self.wallet.server.split(':')
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port = int(port)
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except:
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self.wallet.pick_random_server()
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host, port, protocol = self.wallet.server.split(':')
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port = int(port)
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#print protocol, host, port
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if protocol == 't':
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InterfaceClass = TcpStratumInterface
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elif protocol == 'h':
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InterfaceClass = HttpStratumInterface
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else:
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print_error("Error: Unknown protocol")
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InterfaceClass = TcpStratumInterface
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self.interface = InterfaceClass(host, port, self.wallet.debug_server, self.proxy)
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self.wallet.interface = self.interface
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def handle_response(self, r):
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if r is None:
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return
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method = r['method']
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params = r['params']
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result = r['result']
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if method == 'server.banner':
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self.wallet.banner = result
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self.wallet.was_updated = True
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elif method == 'server.peers.subscribe':
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servers = []
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for item in result:
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s = []
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host = item[1]
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ports = []
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version = None
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if len(item) > 2:
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for v in item[2]:
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if re.match("[th]\d+", v):
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ports.append((v[0], v[1:]))
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if re.match("v(.?)+", v):
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version = v[1:]
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if ports and version:
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servers.append((host, ports))
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self.interface.servers = servers
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# servers_loaded_callback is None for commands, but should
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# NEVER be None when using the GUI.
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if self.servers_loaded_callback is not None:
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self.servers_loaded_callback()
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elif method == 'blockchain.address.subscribe':
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addr = params[0]
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self.wallet.receive_status_callback(addr, result)
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elif method == 'blockchain.address.get_history':
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addr = params[0]
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self.wallet.receive_history_callback(addr, result)
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self.wallet.was_updated = True
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elif method == 'blockchain.transaction.broadcast':
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self.wallet.tx_result = result
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self.wallet.tx_event.set()
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elif method == 'blockchain.numblocks.subscribe':
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self.wallet.blocks = result
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self.wallet.was_updated = True
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elif method == 'server.version':
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pass
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else:
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print_error("Error: Unknown message:" + method + ", " + params + ", " + result)
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def start_interface(self):
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self.interface.init_socket()
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self.interface.start()
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if self.interface.is_connected:
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self.wallet.start_session(self.interface)
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def run(self):
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import socket, time
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self.start_interface()
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while True:
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while self.interface.is_connected:
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new_addresses = self.wallet.synchronize()
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if new_addresses:
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self.interface.subscribe(new_addresses)
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if self.wallet.is_up_to_date():
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if not self.wallet.up_to_date:
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self.wallet.up_to_date = True
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self.wallet.was_updated = True
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self.wallet.up_to_date_event.set()
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else:
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if self.wallet.up_to_date:
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self.wallet.up_to_date = False
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self.wallet.was_updated = True
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if self.wallet.was_updated:
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self.wallet.trigger_callbacks()
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self.wallet.was_updated = False
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response = self.interface.responses.get()
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self.handle_response(response)
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self.wallet.trigger_callbacks()
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if self.loop:
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time.sleep(5)
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# Server has been changed. Copy callback for new interface.
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self.proxy = self.interface.proxy
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self.init_interface()
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self.start_interface()
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continue
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else:
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break
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