new protocol

[electrum-server.git] / server.py

diff --git a/server.py b/server.py
index 9b2fc49..5802a8d 100755 (executable)
--- a/server.py
+++ b/server.py
@@ -25,7 +25,7 @@ Todo:
 """
 
 
-import time, socket, operator, thread, ast, sys,re
+import time, json, socket, operator, thread, ast, sys,re
 import psycopg2, binascii
 
 from Abe.abe import hash_to_address, decode_check_address
@@ -353,7 +353,7 @@ def send_tx(tx):
     respdata = urllib.urlopen(bitcoind_url, postdata).read()
     r = loads(respdata)
     if r['error'] != None:
-        out = "error: transaction rejected by memorypool"
+        out = "error: transaction rejected by memorypool\n"+tx
     else:
         out = r['result']
     return out
@@ -443,6 +443,11 @@ def new_session(version, addresses):
     sessions[session_id]['last_time'] = time.time()
     return out
 
+def subscribe_to_address(session_id, address):
+    sessions[session_id]['addresses'][address] = ''
+    sessions[session_id]['last_time'] = time.time()
+
+
 def update_session(session_id,addresses):
     sessions[session_id]['addresses'] = {}
     for a in addresses:
@@ -450,7 +455,7 @@ def update_session(session_id,addresses):
     sessions[session_id]['last_time'] = time.time()
     return 'ok'
 
-def listen_thread(store):
+def native_server_thread():
     s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
     s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
     s.bind((config.get('server','host'), config.getint('server','port')))
@@ -458,14 +463,13 @@ def listen_thread(store):
     while not stopping:
         conn, addr = s.accept()
         try:
-            thread.start_new_thread(client_thread, (addr, conn,))
+            thread.start_new_thread(native_client_thread, (addr, conn,))
         except:
             # can't start new thread if there is no memory..
             traceback.print_exc(file=sys.stdout)
 
 
-
-def client_thread(ipaddr,conn):
+def native_client_thread(ipaddr,conn):
     #print "client thread", ipaddr
     try:
         ipaddr = ipaddr[0]
@@ -497,6 +501,8 @@ def client_thread(ipaddr,conn):
         conn.close()
 
 
+
+# used by the native handler
 def do_command(cmd, data, ipaddr):
 
     timestr = time.strftime("[%d/%m/%Y-%H:%M:%S]")
@@ -602,6 +608,70 @@ def do_command(cmd, data, ipaddr):
 
 
 
+####################################################################
+
+def tcp_server_thread():
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    s.bind((config.get('server','host'), 50001))
+    s.listen(1)
+    while not stopping:
+        conn, addr = s.accept()
+        try:
+            thread.start_new_thread(tcp_client_thread, (addr, conn,))
+        except:
+            # can't start new thread if there is no memory..
+            traceback.print_exc(file=sys.stdout)
+
+
+
+def tcp_client_thread(ipaddr,conn):
+    """ use a persistent connection. put commands in a queue."""
+    print "persistent client thread", ipaddr
+    global sessions
+
+    session_id = random_string(10)
+    sessions[session_id] = { 'addresses':{}, 'version':'unknown' }
+
+    ipaddr = ipaddr[0]
+    msg = ''
+
+    while True:
+        d = conn.recv(1024)
+        msg += d
+        if not d: break
+        while True:
+            s = msg.find('\n')
+            if s ==-1:
+                break
+            else:
+                c = msg[0:s]
+                msg = msg[s+1:]
+                c = json.loads(c)
+                try:
+                    cmd = c['method']
+                    data = c['params']
+                except:
+                    print "syntax error", repr(c), ipaddr
+                    continue
+
+                out = None
+                if cmd == 'blockchain.address.subscribe':
+                    subscribe_to_address(session_id,data)
+                elif cmd == 'client.version':
+                    sessions[session_id]['version'] = data
+                elif cmd == 'server.banner':
+                    out = json.dumps( { 'method':'server.banner', 'result':config.get('server','banner').replace('\\n','\n') } )
+                else:
+                    print "unknown command", cmd
+
+                if out:
+                    conn.send(out+'\n')
+
+
+
+####################################################################
+
 
 def memorypool_update(store):
     ds = BCDataStream.BCDataStream()
@@ -683,7 +753,7 @@ def irc_thread():
 
 
 
-def jsonrpc_thread(store):
+def http_server_thread(store):
     # see http://code.google.com/p/jsonrpclib/
     from SocketServer import ThreadingMixIn
     from jsonrpclib.SimpleJSONRPCServer import SimpleJSONRPCServer
@@ -750,8 +820,11 @@ if __name__ == '__main__':
     store.tx_cache = {}
     store.mempool_keys = {}
 
-    thread.start_new_thread(listen_thread, (store,))
-    thread.start_new_thread(jsonrpc_thread, (store,))
+    # supported protocols
+    thread.start_new_thread(native_server_thread, ())
+    thread.start_new_thread(tcp_server_thread, ())
+    thread.start_new_thread(http_server_thread, (store,))
+
     thread.start_new_thread(clean_session_thread, ())
     if (config.get('server','irc') == 'yes' ):
        thread.start_new_thread(irc_thread, ())