Merging in latest boto.

boto/sns/__init__.py

 # Copyright (c) 2010-2011 Mitch Garnaat http://garnaat.org/
 # Copyright (c) 2010-2011, Eucalyptus Systems, Inc.
 #
 # 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.
 
 # this is here for backward compatibility
 # originally, the SNSConnection class was defined here
 from connection import SNSConnection
+from boto.regioninfo import RegionInfo
+
+def regions():
+    """
+    Get all available regions for the SNS service.
+
+    :rtype: list
+    :return: A list of :class:`boto.regioninfo.RegionInfo` instances
+    """
+    return [RegionInfo(name='us-east-1',
+                       endpoint='sns.us-east-1.amazonaws.com',
+                       connection_cls=SNSConnection),
+            RegionInfo(name='eu-west-1',
+                       endpoint='sns.eu-west-1.amazonaws.com',
+                       connection_cls=SNSConnection),
+            RegionInfo(name='us-west-1',
+                       endpoint='sns.us-west-1.amazonaws.com',
+                       connection_cls=SNSConnection),
+            RegionInfo(name='ap-northeast-1',
+                       endpoint='sns.ap-northeast-1.amazonaws.com',
+                       connection_cls=SNSConnection),
+            RegionInfo(name='ap-southeast-1',
+                       endpoint='sns.ap-southeast-1.amazonaws.com',
+                       connection_cls=SNSConnection),
+            ]
+
+def connect_to_region(region_name, **kw_params):
+    """
+    Given a valid region name, return a 
+    :class:`boto.sns.connection.SNSConnection`.
+
+    :type: str
+    :param region_name: The name of the region to connect to.
+    
+    :rtype: :class:`boto.sns.connection.SNSConnection` or ``None``
+    :return: A connection to the given region, or None if an invalid region
+             name is given
+    """
+    for region in regions():
+        if region.name == region_name:
+            return region.connect(**kw_params)
+    return None
+
+def get_region(region_name, **kw_params):
+    """
+    Find and return a :class:`boto.regioninfo.RegionInfo` object
+    given a region name.
+
+    :type: str
+    :param: The name of the region.
+
+    :rtype: :class:`boto.regioninfo.RegionInfo`
+    :return: The RegionInfo object for the given region or None if
+             an invalid region name is provided.
+    """
+    for region in regions(**kw_params):
+        if region.name == region_name:
+            return region
+    return None