Remove some code duplication for guessing IP addresses.

diff --git a/src/ddns/system.py b/src/ddns/system.py
index 59dc218..08df265 100644 (file)
--- a/src/ddns/system.py
+++ b/src/ddns/system.py
@@ -57,13 +57,13 @@ class DDNSSystem(object):
 
                return proxy
 
 
                return proxy
 

-       def guess_external_ipv6_address(self):
+       def _guess_external_ip_address(self, url, timeout=10):

                """
                        Sends a request to an external web server
                        to determine the current default IP address.
                """
                try:
                """
                        Sends a request to an external web server
                        to determine the current default IP address.
                """
                try:

-                       response = self.send_request("http://checkip6.dns.lightningwirelabs.com", timeout=10)
+                       response = self.send_request(url, timeout=timeout)

 
                # If the server could not be reached, we will return nothing.
                except DDNSNetworkError:
 
                # If the server could not be reached, we will return nothing.
                except DDNSNetworkError:


@@ -78,26 +78,19 @@ class DDNSSystem(object):
 
                return match.group(1)
 
 
                return match.group(1)
 

-       def guess_external_ipv4_address(self):
+       def guess_external_ipv6_address(self):

                """
                        Sends a request to the internet to determine
                """
                        Sends a request to the internet to determine

-                       the public IP address.
-
-                       XXX does not work for IPv6.
+                       the public IPv6 address.

                """
                """

-               try:
-                       response = self.send_request("http://checkip4.dns.lightningwirelabs.com", timeout=10)
-
-               # If the server could not be reached, we will return nothing.
-               except DDNSNetworkError:
-                       return
+               return self._guess_external_ip_address("http://checkip6.dns.lightningwirelabs.com")

 
 

-               if response.code == 200:
-                       match = re.search(r"Your IP address is: (\d+.\d+.\d+.\d+)", response.read())
-                       if match is None:
-                               return
-
-                       return match.group(1)
+       def guess_external_ipv4_address(self):
+               """
+                       Sends a request to the internet to determine
+                       the public IPv4 address.
+               """
+               return self._guess_external_ip_address("http://checkip4.dns.lightningwirelabs.com")

 
        def send_request(self, url, method="GET", data=None, username=None, password=None, timeout=30):
                assert method in ("GET", "POST")
 
        def send_request(self, url, method="GET", data=None, username=None, password=None, timeout=30):
                assert method in ("GET", "POST")