Merge branch 'zihaoyu-route53_checker_ip_ranges' into develop

Adds support for getting health checker IP ranges from Route53. Fixes #2792.

boto/route53/connection.py

@@ -306,6 +306,23 @@ def get_list_health_checks(self, maxitems=None, marker=None):
         h.parse(body)
         return e
 
+    def get_checker_ip_ranges(self):
+        """
+        Return a list of Route53 healthcheck IP ranges
+        """
+        uri = '/%s/checkeripranges' % self.Version
+        response = self.make_request('GET', uri)
+        body = response.read()
+        boto.log.debug(body)
+        if response.status >= 300:
+            raise exception.DNSServerError(response.status,
+                                           response.reason,
+                                           body)
+        e = boto.jsonresponse.Element(list_marker='CheckerIpRanges', item_marker=('member',))
+        h = boto.jsonresponse.XmlHandler(e, None)
+        h.parse(body)
+        return e
+
     def delete_health_check(self, health_check_id):
         """
         Delete a health check

tests/unit/route53/test_connection.py

@@ -529,6 +529,36 @@ def test_create_health_check_ip_address(self):
         self.assertEqual(response['CreateHealthCheckResponse']['HealthCheck']['Id'], '34778cf8-e31e-4974-bad0-b108bd1623d3')
 
 
+@attr(route53=True)
+class TestGetCheckerIpRanges(AWSMockServiceTestCase):
+    connection_class = Route53Connection
+
+    def default_body(self):
+        return b"""
+<GetCheckerIpRangesResponse xmlns="https://route53.amazonaws.com/doc/2013-04-01/">
+   <CheckerIpRanges>
+      <member>54.183.255.128/26</member>
+      <member>54.228.16.0/26</member>
+      <member>54.232.40.64/26</member>
+      <member>177.71.207.128/26</member>
+      <member>176.34.159.192/26</member>
+   </CheckerIpRanges>
+</GetCheckerIpRangesResponse>
+        """
+
+    def test_get_checker_ip_ranges(self):
+        self.set_http_response(status_code=200)
+        response = self.service_connection.get_checker_ip_ranges()
+        ip_ranges = response['GetCheckerIpRangesResponse']['CheckerIpRanges']
+
+        self.assertEqual(len(ip_ranges), 5)
+        self.assertIn('54.183.255.128/26', ip_ranges)
+        self.assertIn('54.228.16.0/26', ip_ranges)
+        self.assertIn('54.232.40.64/26', ip_ranges)
+        self.assertIn('177.71.207.128/26', ip_ranges)
+        self.assertIn('176.34.159.192/26', ip_ranges)
+
+
 @attr(route53=True)
 class TestCreateHealthCheckRoute53FQDN(AWSMockServiceTestCase):
     connection_class = Route53Connection