improved page
[electrum-server.git] / server.py
index 31df0c2..7896f8e 100644 (file)
--- a/server.py
+++ b/server.py
@@ -34,19 +34,22 @@ try:
     f = open('/etc/electrum.conf','r')
     data = f.read()
     f.close()
-    HOST, PORT, SERVER_MESSAGE = ast.literal_eval(data)
+    HOST, PORT, PASSWORD, SERVER_MESSAGE = ast.literal_eval(data)
 except:
     print "could not read /etc/electrum.conf"
     SERVER_MESSAGE = "Welcome to Electrum"
     HOST = 'ecdsa.org'
     PORT = 50000
+    PASSWORD = ''
 
 
-
+stopping = False
+block_number = -1
 sessions = {}
 sessions_last_time = {}
 dblock = thread.allocate_lock()
 
+peer_list = {}
 
 class MyStore(Datastore_class):
 
@@ -278,15 +281,17 @@ def send_tx(tx):
 
 
 def listen_thread(store):
-
     s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
     s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
     s.bind((HOST, PORT))
     s.listen(1)
-    while True:
+    while not stopping:
         conn, addr = s.accept()
         thread.start_new_thread(client_thread, (addr, conn,))
 
+def random_string(N):
+    import random, string
+    return ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(N))
 
 def client_thread(ipaddr,conn):
     #print "client thread", ipaddr
@@ -309,11 +314,9 @@ def client_thread(ipaddr,conn):
             return
 
         if cmd=='b':
-            out = "%d"%store.get_block_number(1)
-
+            out = "%d"%block_number
         elif cmd=='session':
-            import random, string
-            session_id = ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(10))
+            session_id = random_string(10)
             try:
                 addresses = ast.literal_eval(data)
             except:
@@ -323,7 +326,6 @@ def client_thread(ipaddr,conn):
 
             print time.asctime(), "session", ipaddr, session_id, addresses[0], len(addresses)
 
-            clean_sessions()
             sessions[session_id] = {}
             for a in addresses:
                 sessions[session_id][a] = ''
@@ -345,7 +347,7 @@ def client_thread(ipaddr,conn):
                     if last_status != status:
                         sessions[session_id][addr] = status
                         ret[addr] = status
-                out = repr( (store.get_block_number(1), ret ) )
+                out = repr( (block_number, ret ) )
 
         elif cmd == 'h': 
             # history
@@ -353,9 +355,26 @@ def client_thread(ipaddr,conn):
             h = store.get_txpoints( addr )
             out = repr(h)
 
+        elif cmd == 'load': 
+            if PASSWORD == data:
+                out = repr( len(sessions) )
+            else:
+                out = 'wrong password'
+
         elif cmd =='tx':        
-            # transaction
             out = send_tx(data)
+
+        elif cmd == 'stop':
+            global stopping
+            if PASSWORD == data:
+                stopping = True
+                out = 'ok'
+            else:
+                out = 'wrong password'
+
+        elif cmd == 'peers':
+            out = repr(peer_list.values())
+
         else:
             out = None
 
@@ -398,21 +417,84 @@ def memorypool_update(store):
 
 
 
-def clean_sessions():
-    t = time.time()
-    for k,t0 in sessions_last_time.items():
-        if t - t0 > 60:
-            print "lost session",k
-            sessions.pop(k)
-            sessions_last_time.pop(k)
+def clean_session_thread():
+    while not stopping:
+        time.sleep(30)
+        t = time.time()
+        for k,t0 in sessions_last_time.items():
+            if t - t0 > 60:
+                print "lost session",k
+                sessions.pop(k)
+                sessions_last_time.pop(k)
             
 
+def irc_thread():
+    global peer_list
+    NICK = 'E_'+random_string(10)
+    while not stopping:
+        try:
+            s = socket.socket()
+            s.connect(('irc.freenode.net', 6667))
+            s.send('USER '+NICK+' '+NICK+' bla :'+NICK+'\n') 
+            s.send('NICK '+NICK+'\n') 
+            s.send('JOIN #electrum\n')
+            t = 0
+            while not stopping:
+                line = s.recv(2048)
+                line = line.rstrip('\r\n')
+                line = line.split()
+                if line[0]=='PING': 
+                    s.send('PONG '+line[1]+'\n')
+                elif '353' in line: # answer to /names
+                    k = line.index('353')
+                    try:
+                        k2 = line.index('366')
+                    except:
+                        continue
+                    for item in line[k+1:k2]:
+                        if item[0:2] == 'E_':
+                            s.send('USERHOST %s\n'%item)
+                elif '302' in line: # answer to /userhost
+                    k = line.index('302')
+                    name = line[k+2].split('=')[0]
+                    host = line[k+2].split('@')[1]
+                    peer_list[name] = host
+                elif time.time() - t > 5*60:
+                    s.send('NAMES #electrum\n')
+                    t = time.time()
+        except:
+            traceback.print_exc(file=sys.stdout)
+        finally:
+            s.close()
+
 
 import traceback
 
 
 if __name__ == '__main__':
 
+    if len(sys.argv)>1:
+        cmd = sys.argv[1]
+        if cmd == 'load':
+            request = "('load','%s')#"%PASSWORD
+        elif cmd == 'peers':
+            request = "('peers','')#"
+        elif cmd == 'stop':
+            request = "('stop','%s')#"%PASSWORD
+
+        s = socket.socket( socket.AF_INET, socket.SOCK_STREAM)
+        s.connect(( HOST, PORT))
+        s.send( request )
+        out = ''
+        while 1:
+            msg = s.recv(1024)
+            if msg: out += msg
+            else: break
+        s.close()
+        print out
+        sys.exit(0)
+
+
     print "starting Electrum server"
     conf = DataStore.CONFIG_DEFAULTS
     args, argv = readconf.parse_argv( [], conf)
@@ -421,15 +503,19 @@ if __name__ == '__main__':
     store = MyStore(args)
 
     thread.start_new_thread(listen_thread, (store,))
+    thread.start_new_thread(clean_session_thread, ())
+    thread.start_new_thread(irc_thread, ())
 
-    while True:
+    while not stopping:
         try:
             dblock.acquire()
             store.catch_up()
             memorypool_update(store)
+            block_number = store.get_block_number(1)
             dblock.release()
         except:
             traceback.print_exc(file=sys.stdout)
-            print "continuing..."
         time.sleep(10)
 
+    print "server stopped"
+