Fix crash when no proxy is configured.

[oddments/ddns.git] / ddns / system.py

diff --git a/ddns/system.py b/ddns/system.py
index 6840b7d656d398a8ef1dded2c8babfd1a34be01c..1e1fa0b867ffffda2c847085081acb845021ad27 100644 (file)
--- a/ddns/system.py
+++ b/ddns/system.py
@@ -1,4 +1,23 @@
 #!/usr/bin/python
+###############################################################################
+#                                                                             #
+# ddns - A dynamic DNS client for IPFire                                      #
+# Copyright (C) 2012 IPFire development team                                  #
+#                                                                             #
+# This program is free software: you can redistribute it and/or modify        #
+# it under the terms of the GNU General Public License as published by        #
+# the Free Software Foundation, either version 3 of the License, or           #
+# (at your option) any later version.                                         #
+#                                                                             #
+# This program is distributed in the hope that it will be useful,             #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
+# GNU General Public License for more details.                                #
+#                                                                             #
+# You should have received a copy of the GNU General Public License           #
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
+#                                                                             #
+###############################################################################
 
 import re
 import urllib2
@@ -29,7 +48,7 @@ class DDNSSystem(object):
                proxy = self.core.settings.get("proxy")
 
                # Strip http:// at the beginning.
-               if proxy.startswith("http://"):
+               if proxy and proxy.startswith("http://"):
                        proxy = proxy[7:]
 
                return proxy