From a1be4b7f61994110d2618a1a7e5ca7638e5fb681 Mon Sep 17 00:00:00 2001 From: Omer Katz Date: Tue, 30 Sep 2014 17:07:09 +0300 Subject: [PATCH] VPCs can now be filtered by id. --- moto/ec2/models.py | 19 +++++++++++++++++-- moto/ec2/responses/vpcs.py | 5 ++++- moto/ec2/utils.py | 22 +++++++++++++++++----- tests/test_ec2/test_vpcs.py | 14 +++++++++++++- 4 files changed, 51 insertions(+), 9 deletions(-) diff --git a/moto/ec2/models.py b/moto/ec2/models.py index 20fe46b25..734fa34c2 100644 --- a/moto/ec2/models.py +++ b/moto/ec2/models.py @@ -1133,6 +1133,12 @@ class VPC(TaggedEC2Instance): def physical_resource_id(self): return self.id + def get_filter_value(self, filter_name): + msg = "The filter '{0}' for DescribeVPCs has not been" \ + " implemented in Moto yet. Feel free to open an issue at" \ + " https://github.com/spulec/moto/issues".format(filter_name) + raise NotImplementedError(msg) + class VPCBackend(object): def __init__(self): @@ -1158,8 +1164,17 @@ class VPCBackend(object): raise InvalidVPCIdError(vpc_id) return self.vpcs.get(vpc_id) - def get_all_vpcs(self): - return self.vpcs.values() + def get_all_vpcs(self, vpc_ids=None, filters=None): + if vpc_ids: + vpcs = [vpc for vpc in self.vpcs.values() if vpc.id in vpc_ids] + else: + vpcs = self.vpcs.values() + + if filters: + for (_filter, _filter_value) in filters.items(): + vpcs = [ vpc for vpc in vpcs if vpc.get_filter_value(_filter) in _filter_value ] + + return vpcs def delete_vpc(self, vpc_id): # Delete route table if only main route table remains. diff --git a/moto/ec2/responses/vpcs.py b/moto/ec2/responses/vpcs.py index bdb3fe84a..380016d6b 100644 --- a/moto/ec2/responses/vpcs.py +++ b/moto/ec2/responses/vpcs.py @@ -3,6 +3,7 @@ from jinja2 import Template from moto.core.responses import BaseResponse from moto.ec2.models import ec2_backend +from moto.ec2.utils import filters_from_querystring, vpc_ids_from_querystring class VPCs(BaseResponse): @@ -19,7 +20,9 @@ class VPCs(BaseResponse): return template.render(vpc=vpc) def describe_vpcs(self): - vpcs = ec2_backend.get_all_vpcs() + vpc_ids = vpc_ids_from_querystring(self.querystring) + filters = filters_from_querystring(self.querystring) + vpcs = ec2_backend.get_all_vpcs(vpc_ids=vpc_ids, filters=filters) template = Template(DESCRIBE_VPCS_RESPONSE) return template.render(vpcs=vpcs) diff --git a/moto/ec2/utils.py b/moto/ec2/utils.py index fe11188b1..181732856 100644 --- a/moto/ec2/utils.py +++ b/moto/ec2/utils.py @@ -84,6 +84,7 @@ def random_public_ip(): return '54.214.{0}.{1}'.format(random.choice(range(255)), random.choice(range(255))) + def random_ip(): return "127.{0}.{1}.{2}".format( random.randint(0, 255), @@ -97,7 +98,7 @@ def generate_route_id(route_table_id, cidr_block): def split_route_id(route_id): - values = string.split(route_id,'~') + values = string.split(route_id, '~') return values[0], values[1] @@ -125,6 +126,14 @@ def route_table_ids_from_querystring(querystring_dict): return route_table_ids +def vpc_ids_from_querystring(querystring_dict): + vpc_ids = [] + for key, value in querystring_dict.items(): + if 'VpcId' in key: + vpc_ids.append(value[0]) + return vpc_ids + + def sequence_from_querystring(parameter, querystring_dict): parameter_values = [] for key, value in querystring_dict.items(): @@ -201,13 +210,14 @@ def filters_from_querystring(querystring_dict): if match: filter_index = match.groups()[0] value_prefix = "Filter.{0}.Value".format(filter_index) - filter_values = [filter_value[0] for filter_key, filter_value in querystring_dict.items() if filter_key.startswith(value_prefix)] + filter_values = [filter_value[0] for filter_key, filter_value in querystring_dict.items() if + filter_key.startswith(value_prefix)] response_values[value[0]] = filter_values return response_values def dict_from_querystring(parameter, querystring_dict): - use_dict={} + use_dict = {} for key, value in querystring_dict.items(): match = re.search(r"{0}.(\d).(\w+)".format(parameter), key) if match: @@ -216,7 +226,7 @@ def dict_from_querystring(parameter, querystring_dict): if not use_dict.get(use_dict_index): use_dict[use_dict_index] = {} - use_dict[use_dict_index][use_dict_element_property]=value[0] + use_dict[use_dict_index][use_dict_element_property] = value[0] return use_dict @@ -249,7 +259,9 @@ def passes_filter_dict(instance, filter_dict): if tag_value not in filter_values: return False else: - raise NotImplementedError("Filter dicts have not been implemented in Moto for '%s' yet. Feel free to open an issue at https://github.com/spulec/moto/issues", filter_name) + raise NotImplementedError( + "Filter dicts have not been implemented in Moto for '%s' yet. Feel free to open an issue at https://github.com/spulec/moto/issues", + filter_name) return True diff --git a/tests/test_ec2/test_vpcs.py b/tests/test_ec2/test_vpcs.py index 05a5e865e..1bbe26dbe 100644 --- a/tests/test_ec2/test_vpcs.py +++ b/tests/test_ec2/test_vpcs.py @@ -1,6 +1,6 @@ from __future__ import unicode_literals # Ensure 'assert_raises' context manager support for Python 2.6 -import tests.backport_assert_raises +#import tests.backport_assert_raises from nose.tools import assert_raises import boto @@ -62,3 +62,15 @@ def test_vpc_tagging(): vpc = conn.get_all_vpcs()[0] vpc.tags.should.have.length_of(1) vpc.tags["a key"].should.equal("some value") + +@mock_ec2 +def test_vpc_get_by_id(): + conn = boto.connect_vpc() + vpc1 = conn.create_vpc("10.0.0.0/16") + vpc2 = conn.create_vpc("10.0.0.0/16") + vpc3 = conn.create_vpc("10.0.0.0/16") + + vpcs = conn.get_all_vpcs(vpc_ids=[vpc1.id, vpc2.id]) + vpcs.should.have.length_of(2) + vpcs[0].id.should.be.equal(vpc1.id) + vpcs[1].id.should.be.equal(vpc2.id) \ No newline at end of file