move start_session into wallet methods. replace get_servers with network dialog

gui_qt.py

@@ -920,8 +920,17 @@ class ElectrumWindow(QMainWindow):
             status = "Please choose a server."
             server = random.choice( DEFAULT_SERVERS )
 
+        if not wallet.interface.servers:
+            servers_list = []
+            from interface import DEFAULT_SERVERS
+            for x in DEFAULT_SERVERS:
+                h,port,protocol = x.split(':')
+                servers_list.append( (h,[(protocol,port)] ) )
+        else:
+            servers_list = wallet.interface.servers
+            
         plist = {}
-        for item in wallet.interface.servers:
+        for item in servers_list:
             host, pp = item
             z = {}
             for item2 in pp:
@@ -988,11 +997,15 @@ class ElectrumWindow(QMainWindow):
         vbox.addLayout(hbox)
 
         if wallet.interface.servers:
-            servers_list = QTreeWidget(parent)
-            servers_list.setHeaderLabels( [ 'Active servers'] )
-            servers_list.setMaximumHeight(150)
+            label = 'Active Servers'
+        else:
+            label = 'Default Servers'
+        
+        servers_list_widget = QTreeWidget(parent)
+        servers_list_widget.setHeaderLabels( [ label ] )
+        servers_list_widget.setMaximumHeight(150)
         for host in plist.keys():
-                servers_list.addTopLevelItem(QTreeWidgetItem( [ host ] ))
+            servers_list_widget.addTopLevelItem(QTreeWidgetItem( [ host ] ))
 
         def do_set_line(x):
             host = unicode(x.text(0))
@@ -1005,14 +1018,8 @@ class ElectrumWindow(QMainWindow):
             host_line.setText( host + ':' + port + ':' + protocol)
             set_button(protocol)
 
-            servers_list.connect(servers_list, SIGNAL('itemClicked(QTreeWidgetItem*, int)'), do_set_line)
-            vbox.addWidget(servers_list)
-        else:
-            hbox = QHBoxLayout()
-            hbox.addWidget(QLabel('No nodes available'))
-            b = EnterButton("Find nodes", lambda: wallet.interface.get_servers(wallet) )
-            hbox.addWidget(b)
-            vbox.addLayout(hbox)
+        servers_list_widget.connect(servers_list_widget, SIGNAL('itemClicked(QTreeWidgetItem*, int)'), do_set_line)
+        vbox.addWidget(servers_list_widget)
 
         vbox.addLayout(ok_cancel_buttons(d))
         d.setLayout(vbox) 

interface.py

@@ -20,6 +20,8 @@
 import random, socket, ast, re
 import threading, traceback, sys, time, json, Queue
 
+from version import ELECTRUM_VERSION
+
 DEFAULT_TIMEOUT = 5
 DEFAULT_SERVERS = [ 'ecdsa.org:50001:t', 'electrum.novit.ro:50001:t', 'electrum.bitcoins.sk:50001:t']  # list of default servers
 
@@ -93,31 +95,6 @@ class Interface(threading.Thread):
         self.send(messages)
 
 
-    def get_servers(self, wallet):
-        # loop over default servers
-        # requesting servers could be an independent process
-        addresses = wallet.all_addresses()
-        version = wallet.electrum_version
-
-        for server in DEFAULT_SERVERS:
-            print "connecting to", server
-            try:
-                self.host = server
-                self.start_session(addresses, version)
-                wallet.host = self.host
-                break
-            except socket.timeout:
-                continue
-            except socket.error:
-                continue
-            except:
-                traceback.print_exc(file=sys.stdout)
-
-
-    def start_session(self, addresses, version):
-        #print "Starting new session: %s:%d"%(self.host,self.port)
-        self.send([('server.version', [version]), ('server.banner',[]), ('blockchain.numblocks.subscribe',[]), ('server.peers.subscribe',[])])
-        self.subscribe(addresses)
 
 
 class PollingInterface(Interface):
@@ -240,6 +217,7 @@ class TcpStratumInterface(Interface):
         try:
             self.s.connect(( self.host, self.port))
             self.is_connected = True
+            self.send([('server.version', [ELECTRUM_VERSION])])
         except:
             self.is_connected = False
             print "not connected"
@@ -367,21 +345,12 @@ class WalletSynchronizer(threading.Thread):
             InterfaceClass = TcpStratumInterface
 
         self.interface = InterfaceClass(host, port)
+        self.interface.start()
         self.wallet.interface = self.interface
 
-        with self.wallet.lock:
-            self.wallet.addresses_waiting_for_status = []
-            self.wallet.addresses_waiting_for_history = []
-            addresses = self.wallet.all_addresses()
-            version = self.wallet.electrum_version
-            for addr in addresses:
-                self.wallet.addresses_waiting_for_status.append(addr)
+        if self.interface.is_connected:
+            self.wallet.start_session(self.interface)
 
-        try:
-            self.interface.start()
-            self.interface.start_session(addresses,version)
-        except:
-            self.interface.is_connected = False
 
 
     def run(self):

wallet.py

@@ -947,4 +947,18 @@ class Wallet:
         self.up_to_date_event.wait()
 
 
+    def start_session(self, interface):
+        self.interface = interface
+        with self.lock:
+            self.addresses_waiting_for_status = []
+            self.addresses_waiting_for_history = []
+            addresses = self.all_addresses()
+            for addr in addresses:
+                self.addresses_waiting_for_status.append(addr)
+
+        self.interface.send([('server.banner',[]), ('blockchain.numblocks.subscribe',[]), ('server.peers.subscribe',[])])
+        self.interface.subscribe(addresses)
+
+
+