Scripts to download files from google storage based on sha1 sums

third_party/gsutil/gslib/commands/getwebcfg.py

+# Copyright 2012 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from gslib.command import Command
+from gslib.command import COMMAND_NAME
+from gslib.command import COMMAND_NAME_ALIASES
+from gslib.command import CONFIG_REQUIRED
+from gslib.command import FILE_URIS_OK
+from gslib.command import MAX_ARGS
+from gslib.command import MIN_ARGS
+from gslib.command import PROVIDER_URIS_OK
+from gslib.command import SUPPORTED_SUB_ARGS
+from gslib.command import URIS_START_ARG
+from gslib.exception import CommandException
+from gslib.help_provider import HELP_NAME
+from gslib.help_provider import HELP_NAME_ALIASES
+from gslib.help_provider import HELP_ONE_LINE_SUMMARY
+from gslib.help_provider import HELP_TEXT
+from gslib.help_provider import HelpType
+from gslib.help_provider import HELP_TYPE
+from xml.dom.minidom import parseString as XmlParseString
+
+
+_detailed_help_text = ("""
+<B>SYNOPSIS</B>
+  gsutil getwebcfg bucket_uri
+
+
+<B>DESCRIPTION</B>
+  The Website Configuration feature enables you to configure a Google Cloud
+  Storage bucket to simulate the behavior of a static website. You can define
+  main pages or directory indices (for example, index.html) for buckets and
+  "directories". Also, you can define a custom error page in case a requested
+  resource does not exist.
+
+  The gstuil getwebcfg command gets the web semantics configuration for a
+  bucket, and displays an XML representation of the configuration.
+
+  In Google Cloud Storage, this would look like:
+
+  <?xml version="1.0" ?>
+  <WebsiteConfiguration>
+    <MainPageSuffix>
+      index.html
+    </MainPageSuffix>
+    <NotFoundPage>
+      404.html
+    </NotFoundPage>
+  </WebsiteConfiguration>
+""")
+
+class GetWebcfgCommand(Command):
+  """Implementation of gsutil getwebcfg command."""
+
+  # Command specification (processed by parent class).
+  command_spec = {
+    # Name of command.
+    COMMAND_NAME : 'getwebcfg',
+    # List of command name aliases.
+    COMMAND_NAME_ALIASES : [],
+    # Min number of args required by this command.
+    MIN_ARGS : 1,
+    # Max number of args required by this command, or NO_MAX.
+    MAX_ARGS : 1, # Getopt-style string specifying acceptable sub args.
+    SUPPORTED_SUB_ARGS : '',
+    # True if file URIs acceptable for this command.
+    FILE_URIS_OK : False,
+    # True if provider-only URIs acceptable for this command.
+    PROVIDER_URIS_OK : False,
+    # Index in args of first URI arg.
+    URIS_START_ARG : 1,
+    # True if must configure gsutil before running command.
+    CONFIG_REQUIRED : True,
+  }
+  help_spec = {
+    # Name of command or auxiliary help info for which this help applies.
+    HELP_NAME : 'getwebcfg',
+    # List of help name aliases.
+    HELP_NAME_ALIASES : [],
+    # Type of help)
+    HELP_TYPE : HelpType.COMMAND_HELP,
+    # One line summary of this help.
+    HELP_ONE_LINE_SUMMARY : ('Get the website configuration '
+                             'for one or more buckets'),
+    # The full help text.
+    HELP_TEXT : _detailed_help_text,
+  }
+
+  # Command entry point.
+  def RunCommand(self):
+    uri_args = self.args
+
+    # Iterate over URIs, expanding wildcards, and getting the website
+    # configuration on each.
+    some_matched = False
+    for uri_str in uri_args:
+      for blr in self.WildcardIterator(uri_str):
+        uri = blr.GetUri()
+        if not uri.names_bucket():
+          raise CommandException('URI %s must name a bucket for the %s command'
+                                 % (str(uri), self.command_name))
+        some_matched = True
+        print 'Getting website config on %s...' % uri
+        _, xml_body = uri.get_website_config()
+        print XmlParseString(xml_body).toprettyxml()
+    if not some_matched:
+      raise CommandException('No URIs matched')
+
+    return 0