New port numbers
[electrum-nvc.git] / lib / network.py
index 754efad..114edc6 100644 (file)
@@ -4,24 +4,46 @@ from bitcoin import *
 import interface
 from blockchain import Blockchain
 
-DEFAULT_PORTS = {'t':'50001', 's':'50002', 'h':'8081', 'g':'8082'}
+DEFAULT_PORTS = {'t':'40001', 's':'40002', 'h':'7081', 'g':'7082'}
 
 DEFAULT_SERVERS = {
-    #'electrum.coinwallet.me': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
-    'electrum.hachre.de': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
-    'electrum.novit.ro': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
-    'electrum.stepkrav.pw': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
-    #'ecdsa.org': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
-    'electrum.no-ip.org': {'h': '80', 's': '50002', 't': '50001', 'g': '443'},
-    'electrum.drollette.com': {'h': '5000', 's': '50002', 't': '50001', 'g': '8082'},
-    'btc.it-zone.org': {'h': '80', 's': '110', 't': '50001', 'g': '443'},
-    'btc.medoix.com': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
-    'electrum.stupidfoot.com': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
-    #'electrum.pdmc.net': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
-    'electrum.be': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'}
+#    '127.0.0.1': DEFAULT_PORTS,
+    '193.23.181.148': DEFAULT_PORTS,
+    '91.235.143.61': DEFAULT_PORTS,
 }
 
 
+def parse_servers(result):
+    """ parse servers list into dict format"""
+    from version import PROTOCOL_VERSION
+    servers = {}
+    for item in result:
+        host = item[1]
+        out = {}
+        version = None
+        pruning_level = '-'
+        if len(item) > 2:
+            for v in item[2]:
+                if re.match("[stgh]\d*", v):
+                    protocol, port = v[0], v[1:]
+                    if port == '': port = DEFAULT_PORTS[protocol]
+                    out[protocol] = port
+                elif re.match("v(.?)+", v):
+                    version = v[1:]
+                elif re.match("p\d*", v):
+                    pruning_level = v[1:]
+                if pruning_level == '': pruning_level = '0'
+        try: 
+            is_recent = float(version)>=float(PROTOCOL_VERSION)
+        except Exception:
+            is_recent = False
+
+        if out and is_recent:
+            out['pruning'] = pruning_level
+            servers[host] = out
+
+    return servers
+
 
 
 def filter_protocol(servers, p):
@@ -39,7 +61,9 @@ from simple_config import SimpleConfig
 
 class Network(threading.Thread):
 
-    def __init__(self, config = {}):
+    def __init__(self, config=None):
+        if config is None:
+            config = {}  # Do not use mutables as default values!
         threading.Thread.__init__(self)
         self.daemon = True
         self.config = SimpleConfig(config) if type(config) == type({}) else config
@@ -58,13 +82,16 @@ class Network(threading.Thread):
             self.default_server = pick_random_server(self.protocol)
 
         self.irc_servers = [] # returned by interface (list from irc)
-        self.disconnected_servers = []
+        self.pending_servers = set([])
+        self.disconnected_servers = set([])
         self.recent_servers = self.config.get('recent_servers',[]) # successful connections
 
         self.banner = ''
         self.interface = None
         self.proxy = self.config.get('proxy')
         self.heights = {}
+        self.merkle_roots = {}
+        self.utxo_roots = {}
         self.server_lag = 0
 
         dir_path = os.path.join( self.config.path, 'certs')
@@ -75,12 +102,21 @@ class Network(threading.Thread):
         self.subscriptions = {}
         self.subscriptions[self.on_banner] = [('server.banner',[])]
         self.subscriptions[self.on_peers] = [('server.peers.subscribe',[])]
+        self.pending_transactions_for_notifications = []
 
 
     def is_connected(self):
         return self.interface and self.interface.is_connected
 
 
+    def is_up_to_date(self):
+        return self.interface.is_up_to_date()
+
+
+    def main_server(self):
+        return self.interface.server
+
+
     def send_subscriptions(self):
         for cb, sub in self.subscriptions.items():
             self.interface.send(sub, cb)
@@ -94,12 +130,12 @@ class Network(threading.Thread):
                 if message not in self.subscriptions[callback]:
                     self.subscriptions[callback].append(message)
 
-        if self.interface and self.interface.is_connected:
+        if self.is_connected():
             self.interface.send( messages, callback )
 
 
     def send(self, messages, callback):
-        if self.interface and self.interface.is_connected:
+        if self.is_connected():
             self.interface.send( messages, callback )
             return True
         else:
@@ -124,7 +160,7 @@ class Network(threading.Thread):
         choice_list = []
         l = filter_protocol(self.get_servers(), self.protocol)
         for s in l:
-            if s in self.disconnected_servers or s in self.interfaces.keys():
+            if s in self.pending_servers or s in self.disconnected_servers or s in self.interfaces.keys():
                 continue
             else:
                 choice_list.append(s)
@@ -132,7 +168,7 @@ class Network(threading.Thread):
         if not choice_list: 
             if not self.interfaces:
                 # we are probably offline, retry later
-                self.disconnected_servers = []
+                self.disconnected_servers = set([])
             return
         
         server = random.choice( choice_list )
@@ -140,18 +176,21 @@ class Network(threading.Thread):
 
 
     def get_servers(self):
-        out = self.irc_servers if self.irc_servers else DEFAULT_SERVERS
-        for s in self.recent_servers:
-            host, port, protocol = s.split(':')
-            if host not in out:
-                out[host] = { protocol:port }
+        if self.irc_servers:
+            out = self.irc_servers  
+        else:
+            out = DEFAULT_SERVERS
+            for s in self.recent_servers:
+                host, port, protocol = s.split(':')
+                if host not in out:
+                    out[host] = { protocol:port }
         return out
 
     def start_interface(self, server):
         if server in self.interfaces.keys():
             return
         i = interface.Interface(server, self.config)
-        # add it only if it gets connected
+        self.pending_servers.add(server)
         i.start(self.queue)
         return i 
 
@@ -162,27 +201,27 @@ class Network(threading.Thread):
 
     def start_interfaces(self):
         self.interface = self.start_interface(self.default_server)
-        #self.interface = self.interfaces[self.default_server]
 
         for i in range(self.num_server):
             self.start_random_interface()
             
-        if not self.interface:
-            self.interface = self.interfaces.values()[0]
-
 
     def start(self, wait=False):
         self.start_interfaces()
         threading.Thread.start(self)
         if wait:
-            self.interface.connect_event.wait()
-            return self.interface.is_connected
-
+            return self.wait_until_connected()
 
     def wait_until_connected(self):
-        while not self.interface:
-            time.sleep(1)
-        self.interface.connect_event.wait()
+        "wait until connection status is known"
+        if self.config.get('auto_cycle'): 
+            # self.random_server() returns None if all servers have been tried
+            while not self.is_connected() and self.random_server():
+                time.sleep(0.1)
+        else:
+            self.interface.connect_event.wait()
+
+        return self.interface.is_connected
 
 
     def set_parameters(self, host, port, protocol, proxy, auto_connect):
@@ -198,11 +237,11 @@ class Network(threading.Thread):
             self.protocol = protocol
             for i in self.interfaces.values(): i.stop()
             if auto_connect:
-                self.interface = None
+                #self.interface = None
                 return
 
         if auto_connect:
-            if not self.interface:
+            if not self.interface.is_connected:
                 self.switch_to_random_interface()
             else:
                 if self.server_lag > 0:
@@ -216,7 +255,7 @@ class Network(threading.Thread):
             self.switch_to_interface(random.choice(self.interfaces.values()))
 
     def switch_to_interface(self, interface):
-        assert self.interface is None
+        assert not self.interface.is_connected
         server = interface.server
         print_error("switching to", server)
         self.interface = interface
@@ -231,17 +270,17 @@ class Network(threading.Thread):
 
     def stop_interface(self):
         self.interface.stop() 
-        self.interface = None
+
 
     def set_server(self, server):
-        if self.default_server == server and self.interface:
+        if self.default_server == server and self.interface.is_connected:
             return
 
         if self.protocol != server.split(':')[2]:
             return
 
         # stop the interface in order to terminate subscriptions
-        if self.interface:
+        if self.interface.is_connected:
             self.stop_interface()
 
         # notify gui
@@ -295,6 +334,9 @@ class Network(threading.Thread):
                     self.start_random_interface()
                 continue
 
+            if i.server in self.pending_servers:
+                self.pending_servers.remove(i.server)
+
             if i.is_connected:
                 #if i.server in self.interfaces: raise
                 self.interfaces[i.server] = i
@@ -305,24 +347,29 @@ class Network(threading.Thread):
                     self.send_subscriptions()
                     self.trigger_callback('connected')
             else:
-                self.disconnected_servers.append(i.server)
+                self.disconnected_servers.add(i.server)
                 if i.server in self.interfaces:
                     self.interfaces.pop(i.server)
                 if i.server in self.heights:
                     self.heights.pop(i.server)
                 if i == self.interface:
-                    self.interface = None
+                    #self.interface = None
                     self.trigger_callback('disconnected')
 
-            if self.interface is None and self.config.get('auto_cycle'):
+            if not self.interface.is_connected and self.config.get('auto_cycle'):
                 self.switch_to_random_interface()
 
 
     def on_header(self, i, r):
         result = r.get('result')
-        if not result: return
+        if not result:
+            return
         height = result.get('block_height')
+        if not height:
+            return
         self.heights[i.server] = height
+        self.merkle_roots[i.server] = result.get('merkle_root')
+        self.utxo_roots[i.server] = result.get('utxo_root')
         # notify blockchain about the new height
         self.blockchain.queue.put((i,result))
 
@@ -337,7 +384,7 @@ class Network(threading.Thread):
 
     def on_peers(self, i, r):
         if not r: return
-        self.irc_servers = self.parse_servers(r.get('result'))
+        self.irc_servers = parse_servers(r.get('result'))
         self.trigger_callback('peers')
 
     def on_banner(self, i, r):
@@ -352,71 +399,35 @@ class Network(threading.Thread):
 
     
     def synchronous_get(self, requests, timeout=100000000):
-        queue = Queue.Queue()
-        ids = self.interface.send(requests, lambda i,r: queue.put(r))
-        id2 = ids[:]
-        res = {}
-        while ids:
-            r = queue.get(True, timeout)
-            _id = r.get('id')
-            if _id in ids:
-                ids.remove(_id)
-                res[_id] = r.get('result')
-        out = []
-        for _id in id2:
-            out.append(res[_id])
-        return out
+        return self.interface.synchronous_get(requests)
+
 
+    def get_header(self, tx_height):
+        return self.blockchain.read_header(tx_height)
 
-    def retrieve_transaction(self, tx_hash, tx_height=0):
-        import transaction
-        r = self.synchronous_get([ ('blockchain.transaction.get',[tx_hash, tx_height]) ])[0]
-        if r:
-            return transaction.Transaction(r)
+    def get_local_height(self):
+        return self.blockchain.height()
 
 
-    def parse_servers(self, result):
-        """ parse servers list into dict format"""
-        from version import PROTOCOL_VERSION
-        servers = {}
-        for item in result:
-            host = item[1]
-            out = {}
-            version = None
-            pruning_level = '-'
-            if len(item) > 2:
-                for v in item[2]:
-                    if re.match("[stgh]\d*", v):
-                        protocol, port = v[0], v[1:]
-                        if port == '': port = DEFAULT_PORTS[protocol]
-                        out[protocol] = port
-                    elif re.match("v(.?)+", v):
-                        version = v[1:]
-                    elif re.match("p\d*", v):
-                        pruning_level = v[1:]
-                    if pruning_level == '': pruning_level = '0'
-            try: 
-                is_recent = float(version)>=float(PROTOCOL_VERSION)
-            except Exception:
-                is_recent = False
 
-            if out and is_recent:
-                out['pruning'] = pruning_level
-                servers[host] = out
+    #def retrieve_transaction(self, tx_hash, tx_height=0):
+    #    import transaction
+    #    r = self.synchronous_get([ ('blockchain.transaction.get',[tx_hash, tx_height]) ])[0]
+    #    if r:
+    #        return transaction.Transaction(r)
 
-        return servers
 
 
 
 
 if __name__ == "__main__":
-    import simple_config
-    config = simple_config.SimpleConfig({'verbose':True, 'server':'ecdsa.org:50002:s'})
-    network = Network(config)
+    network = NetworkProxy({})
     network.start()
+    print network.get_servers()
 
-    while 1:
-        time.sleep(1)
-
-
+    q = Queue.Queue()
+    network.send([('blockchain.headers.subscribe',[])], q.put)
+    while True:
+        r = q.get(timeout=10000)
+        print r