Scripts to download files from google storage based on sha1 sums

third_party/gsutil/boto/sqs/jsonmessage.py

+# Copyright (c) 2006-2008 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.
+import base64
+
+from boto.sqs.message import MHMessage
+from boto.exception import SQSDecodeError
+from boto.compat import json
+
+
+class JSONMessage(MHMessage):
+    """
+    Acts like a dictionary but encodes it's data as a Base64 encoded JSON payload.
+    """
+
+    def decode(self, value):
+        try:
+            value = base64.b64decode(value)
+            value = json.loads(value)
+        except:
+            raise SQSDecodeError('Unable to decode message', self)
+        return value
+
+    def encode(self, value):
+        value = json.dumps(value)
+        return base64.b64encode(value)