Catch "no route to host" errors

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

diff --git a/src/ddns/system.py b/src/ddns/system.py
index cab2942aba4c101eb4da157225527e238d99c579..6a21af85395af68ac149b545d7f8009e5a3cd713 100644 (file)
--- a/src/ddns/system.py
+++ b/src/ddns/system.py
@@ -166,6 +166,11 @@ class DDNSSystem(object):
                        return resp
 
                except urllib2.HTTPError, e:
+                       # Log response header.
+                       logger.debug(_("Response header (Status Code %s):") % e.code)
+                       for k, v in e.hdrs.items():
+                               logger.debug("  %s: %s" % (k, v))
+
                        # 400 - Bad request
                        if e.code == 400:
                                raise DDNSRequestError(e.reason)
@@ -175,6 +180,12 @@ class DDNSSystem(object):
                        elif e.code in (401, 403):
                                raise DDNSAuthenticationError(e.reason)
 
+                       # 404 - Not found
+                       # Either the provider has changed the API, or
+                       # there is an error on the server
+                       elif e.code == 404:
+                               raise DDNSNotFound(e.reason)
+
                        # 500 - Internal Server Error
                        elif e.code == 500:
                                raise DDNSInternalServerError(e.reason)
@@ -188,6 +199,10 @@ class DDNSSystem(object):
 
                except urllib2.URLError, e:
                        if e.reason:
+                               # Name or service not known
+                               if e.reason.errno == -2:
+                                       raise DDNSResolveError
+
                                # Network Unreachable (e.g. no IPv6 access)
                                if e.reason.errno == 101:
                                        raise DDNSNetworkUnreachableError
@@ -196,6 +211,10 @@ class DDNSSystem(object):
                                elif e.reason.errno == 111:
                                        raise DDNSConnectionRefusedError
 
+                               # No route to host
+                               elif e.reason.errno == 113:
+                                       raise DDNSNoRouteToHostError(req.host)
+
                        # Raise all other unhandled exceptions.
                        raise
 
@@ -316,6 +335,10 @@ class DDNSSystem(object):
                        if e.errno == -2:
                                return []
 
+                       # Temporary failure in name resolution
+                       elif e.errno == -3:
+                               raise DDNSResolveError(hostname)
+
                        # No record for requested family available (e.g. no AAAA)
                        elif e.errno == -5:
                                return []