Added gsutil to depot tools

third_party/gsutil/boto/boto/auth_handler.py

Index: third_party/gsutil/boto/boto/auth_handler.py
diff --git a/third_party/gsutil/boto/boto/auth_handler.py b/third_party/gsutil/boto/boto/auth_handler.py
new file mode 100644
index 0000000000000000000000000000000000000000..ab2d31703361bc0fdaffa6da2d7a415a3e314112
--- /dev/null
+++ b/third_party/gsutil/boto/boto/auth_handler.py
@@ -0,0 +1,58 @@
+# Copyright 2010 Google 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.
+
+"""
+Defines an interface which all Auth handlers need to implement.
+"""
+
+from plugin import Plugin
+
+class NotReadyToAuthenticate(Exception):
+  pass
+
+class AuthHandler(Plugin):
+
+    capability = []
+
+    def __init__(self, host, config, provider):
+        """Constructs the handlers.
+        :type host: string
+        :param host: The host to which the request is being sent.
+
+        :type config: boto.pyami.Config 
+        :param config: Boto configuration.
+
+        :type provider: boto.provider.Provider  
+        :param provider: Provider details.
+
+        Raises:
+            NotReadyToAuthenticate: if this handler is not willing to
+                authenticate for the given provider and config.
+        """
+        pass
+
+    def add_auth(self, http_request):
+        """Invoked to add authentication details to request.
+
+        :type http_request: boto.connection.HTTPRequest
+        :param http_request: HTTP request that needs to be authenticated.
+        """
+        pass