Merging in latest boto.

boto/cloudformation/connection.py

Index: boto/cloudformation/connection.py
diff --git a/boto/cloudformation/connection.py b/boto/cloudformation/connection.py
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+# Copyright (c) 2006-2009 Mitch Garnaat http://garnaat.org/
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish, dis-
+# tribute, sublicense, and/or sell copies of the Software, and to permit
+# persons to whom the Software is furnished to do so, subject to the fol-
+# lowing conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
+# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+try:
+    import simplejson as json
+except:
+    import json
+
+import boto
+from boto.cloudformation.stack import Stack, StackSummary, StackEvent
+from boto.cloudformation.stack import StackResource, StackResourceSummary
+from boto.cloudformation.template import Template
+from boto.connection import AWSQueryConnection
+from boto.regioninfo import RegionInfo
+
+class CloudFormationConnection(AWSQueryConnection):
+
+    """
+    A Connection to the CloudFormation Service.
+    """
+    DefaultRegionName = 'us-east-1'
+    DefaultRegionEndpoint = 'cloudformation.us-east-1.amazonaws.com'
+    APIVersion = '2010-05-15'
+
+    valid_states = ("CREATE_IN_PROGRESS", "CREATE_FAILED", "CREATE_COMPLETE",
+            "ROLLBACK_IN_PROGRESS", "ROLLBACK_FAILED", "ROLLBACK_COMPLETE",
+            "DELETE_IN_PROGRESS", "DELETE_FAILED", "DELETE_COMPLETE")
+
+    def __init__(self, aws_access_key_id=None, aws_secret_access_key=None,
+                 is_secure=True, port=None, proxy=None, proxy_port=None,
+                 proxy_user=None, proxy_pass=None, debug=0,
+                 https_connection_factory=None, region=None, path='/', converter=None):
+        if not region:
+            region = RegionInfo(self, self.DefaultRegionName,
+                self.DefaultRegionEndpoint, CloudFormationConnection)
+        self.region = region
+        AWSQueryConnection.__init__(self, aws_access_key_id, aws_secret_access_key,
+                                    is_secure, port, proxy, proxy_port, proxy_user, proxy_pass,
+                                    self.region.endpoint, debug, https_connection_factory, path)
+
+    def _required_auth_capability(self):
+        return ['cloudformation']
+
+    def encode_bool(self, v):
+        v = bool(v)
+        return {True: "true", False: "false"}[v]
+
+    def create_stack(self, stack_name, template_body=None, template_url=None,
+            parameters=[], notification_arns=[], disable_rollback=False,
+            timeout_in_minutes=None):
+        """
+        Creates a CloudFormation Stack as specified by the template.
+
+        :type stack_name: string
+        :param stack_name: The name of the Stack, must be unique amoung running
+                            Stacks
+
+        :type template_body: string
+        :param template_body: The template body (JSON string)
+
+        :type template_url: string
+        :param template_url: An S3 URL of a stored template JSON document. If
+                            both the template_body and template_url are
+                            specified, the template_body takes precedence
+
+        :type parameters: list of tuples
+        :param parameters: A list of (key, value) pairs for template input
+                            parameters.
+
+        :type notification_arns: list of strings
+        :param notification_arns: A list of SNS topics to send Stack event
+                            notifications to
+
+        :type disable_rollback: bool
+        :param disable_rollback: Indicates whether or not to rollback on
+                            failure
+
+        :type timeout_in_minutes: int
+        :param timeout_in_minutes: Maximum amount of time to let the Stack
+                            spend creating itself. If this timeout is exceeded,
+                            the Stack will enter the CREATE_FAILED state
+
+        :rtype: string
+        :return: The unique Stack ID
+        """
+        params = {'ContentType': "JSON", 'StackName': stack_name,
+                'DisableRollback': self.encode_bool(disable_rollback)}
+        if template_body:
+            params['TemplateBody'] = template_body
+        if template_url:
+            params['TemplateURL'] = template_url
+        if template_body and template_url:
+            boto.log.warning("If both TemplateBody and TemplateURL are"
+                " specified, only TemplateBody will be honored by the API")
+        if len(parameters) > 0:
+            for i, (key, value) in enumerate(parameters):
+                params['Parameters.member.%d.ParameterKey' % (i+1)] = key
+                params['Parameters.member.%d.ParameterValue' % (i+1)] = value
+        if len(notification_arns) > 0:
+            self.build_list_params(params, notification_arns, "NotificationARNs.member")
+        if timeout_in_minutes:
+            params['TimeoutInMinutes'] = int(timeout_in_minutes)
+
+        response = self.make_request('CreateStack', params, '/', 'POST')
+        body = response.read()
+        if response.status == 200:
+            body = json.loads(body)
+            return body['CreateStackResponse']['CreateStackResult']['StackId']
+        else:
+            boto.log.error('%s %s' % (response.status, response.reason))
+            boto.log.error('%s' % body)
+            raise self.ResponseError(response.status, response.reason, body)
+
+    def delete_stack(self, stack_name_or_id):
+        params = {'ContentType': "JSON", 'StackName': stack_name_or_id}
+        # TODO: change this to get_status ?
+        response = self.make_request('DeleteStack', params, '/', 'GET')
+        body = response.read()
+        if response.status == 200:
+            return json.loads(body)
+        else:
+            boto.log.error('%s %s' % (response.status, response.reason))
+            boto.log.error('%s' % body)
+            raise self.ResponseError(response.status, response.reason, body)
+
+    def describe_stack_events(self, stack_name_or_id=None, next_token=None):
+        params = {}
+        if stack_name_or_id:
+            params['StackName'] = stack_name_or_id
+        if next_token:
+            params['NextToken'] = next_token
+        return self.get_list('DescribeStackEvents', params, [('member',
+            StackEvent)])
+
+    def describe_stack_resource(self, stack_name_or_id, logical_resource_id):
+        params = {'ContentType': "JSON", 'StackName': stack_name_or_id,
+                'LogicalResourceId': logical_resource_id}
+        response = self.make_request('DescribeStackResource', params, '/', 'GET')
+        body = response.read()
+        if response.status == 200:
+            return json.loads(body)
+        else:
+            boto.log.error('%s %s' % (response.status, response.reason))
+            boto.log.error('%s' % body)
+            raise self.ResponseError(response.status, response.reason, body)
+
+    def describe_stack_resources(self, stack_name_or_id=None,
+            logical_resource_id=None,
+            physical_resource_id=None):
+        params = {}
+        if stack_name_or_id:
+            params['StackName'] = stack_name_or_id
+        if logical_resource_id:
+            params['LogicalResourceId'] = logical_resource_id
+        if physical_resource_id:
+            params['PhysicalResourceId'] = physical_resource_id
+        return self.get_list('DescribeStackResources', params, [('member',
+            StackResource)])
+
+    def describe_stacks(self, stack_name_or_id=None):
+        params = {}
+        if stack_name_or_id:
+            params['StackName'] = stack_name_or_id
+        return self.get_list('DescribeStacks', params, [('member', Stack)])
+
+    def get_template(self, stack_name_or_id):
+        params = {'ContentType': "JSON", 'StackName': stack_name_or_id}
+        response = self.make_request('GetTemplate', params, '/', 'GET')
+        body = response.read()
+        if response.status == 200:
+            return json.loads(body)
+        else:
+            boto.log.error('%s %s' % (response.status, response.reason))
+            boto.log.error('%s' % body)
+            raise self.ResponseError(response.status, response.reason, body)
+
+    def list_stack_resources(self, stack_name_or_id, next_token=None):
+        params = {'StackName': stack_name_or_id}
+        if next_token:
+            params['NextToken'] = next_token
+        return self.get_list('ListStackResources', params, [('member',
+            StackResourceSummary)])
+
+    def list_stacks(self, stack_status_filters=[], next_token=None):
+        params = {}
+        if next_token:
+            params['NextToken'] = next_token
+        if len(stack_status_filters) > 0:
+            self.build_list_params(params, stack_status_filters,
+                "StackStatusFilter.member")
+
+        return self.get_list('ListStacks', params, [('member',
+            StackSummary)])
+
+    def validate_template(self, template_body=None, template_url=None):
+        params = {}
+        if template_body:
+            params['TemplateBody'] = template_body
+        if template_url:
+            params['TemplateUrl'] = template_url
+        if template_body and template_url:
+            boto.log.warning("If both TemplateBody and TemplateURL are"
+                " specified, only TemplateBody will be honored by the API")
+        return self.get_object('ValidateTemplate', params, Template,
+                verb="POST")