From 9389e043e4cc47fe2aa3c5b7083f1e468728d13e Mon Sep 17 00:00:00 2001
From: moneromooo <moneromoo@nowhere.nowhere.nowhere>
Date: Fri, 26 Dec 2014 12:16:08 +0000
Subject: [PATCH] Handle multi-character prefixes in address sanity checking

---
 tipbot.py | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/tipbot.py b/tipbot.py
index f3e4f51..eca22dd 100644
--- a/tipbot.py
+++ b/tipbot.py
@@ -388,13 +388,18 @@ def CheckDisableWithdraw():
   if disable_withdraw_on_error:
     DisableWithdraw(None,None)
 
+def IsValidAddress(address):
+  if len(address) < address_length[0] or len(address) > address_length[1]:
+    return False
+  for prefix in address_prefix:
+    if address.startswith(prefix):
+      return True
+  return False
+
 def Withdraw(nick,data):
   address=data[0]
   amount=data[1]
-  if len(address) < address_length[0] or len(address) > address_length[1]:
-    SendTo(nick, "Invalid address")
-    return
-  if not address[0] in address_prefix:
+  if not IsValidAddress(address):
     SendTo(nick, "Invalid address")
     return
   if amount: