contrib: update generate-seeds.py to ignore torv2 addresses

Author: jonatack

contrib/seeds/generate-seeds.py

@@ -37,7 +37,7 @@
 class BIP155Network(Enum):
     IPV4 = 1
     IPV6 = 2
-    TORV2 = 3
+    TORV2 = 3  # no longer supported
     TORV3 = 4
     I2P = 5
     CJDNS = 6
@@ -46,11 +46,11 @@ def name_to_bip155(addr):
     '''Convert address string to BIP155 (networkID, addr) tuple.'''
     if addr.endswith('.onion'):
         vchAddr = b32decode(addr[0:-6], True)
-        if len(vchAddr) == 10:
-            return (BIP155Network.TORV2, vchAddr)
-        elif len(vchAddr) == 35:
-            assert(vchAddr[34] == 3)
+        if len(vchAddr) == 35:
+            assert vchAddr[34] == 3
             return (BIP155Network.TORV3, vchAddr[:32])
+        elif len(vchAddr) == 10:
+            return (BIP155Network.TORV2, vchAddr)
         else:
             raise ValueError('Invalid onion %s' % vchAddr)
     elif addr.endswith('.b32.i2p'):
@@ -100,7 +100,10 @@ def parse_spec(s):
 
     host = name_to_bip155(host)
 
-    return host + (port, )
+    if host[0] == BIP155Network.TORV2:
+        return None  # TORV2 is no longer supported, so we ignore it
+    else:
+        return host + (port, )
 
 def ser_compact_size(l):
     r = b""
@@ -136,6 +139,8 @@ def process_nodes(g, f, structname):
             continue
 
         spec = parse_spec(line)
+        if spec is None:  # ignore this entry (e.g. no longer supported addresses like TORV2)
+            continue
         blob = bip155_serialize(spec)
         hoststr = ','.join(('0x%02x' % b) for b in blob)
         g.write(f'    {hoststr},\n')