peer script

scripts/peers

@@ -1,17 +1,79 @@
 #!/usr/bin/env python
 
-import time, electrum
+import time, electrum, Queue
+from electrum import Interface, SimpleConfig
+from electrum.network import filter_protocol, parse_servers
+from collections import defaultdict
 
-electrum.set_verbosity(False)     # default is True
+# 1. start interface and wait for connection
-network = electrum.Network({'auto_cycle':True})
+interface = electrum.Interface('ecdsa.net:50002:s')
-network.register_callback('peers',lambda: electrum.print_json(network.irc_servers.keys()))
+interface.start(wait = True)
+if not interface.is_connected:
+    print "not connected"
+    exit()
 
-if not network.start(wait=True):
+# 2. get list of peers
-    print "Not connected"
+q = Queue.Queue()
-    exit(1)
+interface.send([('server.peers.subscribe',[])], lambda i,x: q.put(x))
+r = q.get(timeout=10000)
+peers = parse_servers(r.get('result'))
+peers = filter_protocol(peers,'s')
 
-print "Connected to", network.interface.server
+# start interfaces
-while not network.irc_servers:
+config = SimpleConfig()
-    time.sleep(1)
+interfaces = map ( lambda server: Interface(server, config), peers )
+results_queue = Queue.Queue()
+reached_servers = []
+for i in interfaces: i.start(q)
+
+while peers:
+    i = q.get(timeout=1)
+    peers.remove(i.server)
+    if i.is_connected:
+        i.send([('blockchain.headers.subscribe',[])], lambda i,x: results_queue.put((i,x)))
+        reached_servers.append(i.server)
+
+def analyze(results):
+    out = {}
+    dd = {}
+    for k, v in results.items():
+        height = v.get('block_height')
+        merkle = v.get('merkle_root')
+        utxo = v.get('utxo_root')
+        d = dd.get(merkle, defaultdict(int))
+        d[utxo] += 1
+        dd[merkle] = d
+
+    refs = {}
+    for merkle, d in dd.items():
+        v = d.values()
+        m = max(v)
+        ref = d.keys()[v.index(m)]
+        refs[merkle] = ref, m
+
+    for k, v in results.items():
+        height = v.get('block_height')
+        merkle = v.get('merkle_root')
+        utxo = v.get('utxo_root')
+        ref_utxo, num = refs.get(merkle)
+
+        if ref_utxo != utxo and num > 1:
+            out[k] = height, merkle, utxo
+
+    return out
 
 
+results = {}
+while reached_servers:
+    i, r = results_queue.get(timeout=10000)
+    results[i.server] = r.get('result')
+    reached_servers.remove(i.server)
+
+electrum.print_json(results)
+out = analyze(results)
+if out:
+    print "faulty servers:"
+    electrum.print_json(out)
+else:
+    print "ok"
+

scripts/servers

@@ -22,7 +22,7 @@ while servers:
     i = q.get(timeout=1000)
     servers.remove(i.server)
     if i.is_connected:
-        i.send([('blockchain.numblocks.subscribe',[])], lambda i,x: results_queue.put((i,x)))
+        i.send([('blockchain.headers.subscribe',[])], lambda i,x: results_queue.put((i,x)))
         reached_servers.append(i.server)
         i.status = "ok"
     else:
@@ -32,7 +32,7 @@ d = defaultdict(int)
 
 while reached_servers:
     i, r = results_queue.get(timeout=1000)
-    i.blocks = r.get('result')
+    i.blocks = r.get('result').get('block_height')
     d[i.blocks] += 1
     reached_servers.remove(i.server)