Added files missing from revision 159.

grit/format/policy_templates/writers/ios_plist_writer.py

Index: grit/format/policy_templates/writers/ios_plist_writer.py
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--- grit/format/policy_templates/writers/ios_plist_writer.py	(revision 0)
+++ grit/format/policy_templates/writers/ios_plist_writer.py	(working copy)
@@ -0,0 +1,122 @@
+#!/usr/bin/env python
+# Copyright (c) 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+import base64
+
+from xml.dom import minidom
+from grit.format.policy_templates.writers import plist_writer
+
+
+# This writer outputs a Property List with an example for each of the policies
+# supported on iOS. This plist can be pushed to Chrome on iOS via the MDM API
+# introduced in iOS 7.
+
+CHROME_POLICY_COMMENT = '''\
+ ChromePolicy is the preferred key to configure Chrome.
+         Each of the keys in this <dict> configures a Chrome policy.
+         All of the Chrome policies are configured with an example
+         value below.
+         Note that it's not necessary to configure all of them. '''
+
+ENCODED_CHROME_POLICY_COMMENT = '''\
+ EncodedChromePolicy contains a Property List file, encoded in Base64,
+         which contains the same policies that can go in ChromePolicy.
+         This key can be used by vendors that restrict the app configuration
+         types to strings.
+         The value of this string can be validated by running these
+         commands in Mac OS X:
+
+         # (first, copy-paste the string into a file named "policy.plist")
+         # base64 -D < policy.plist > decoded_policy.plist
+         # plutil -lint decoded_policy.plist
+
+         plutil should indicate that decoded_policy.plist is valid,
+         otherwise Chrome will reject the encoded string too.
+
+         This command can be used to pretty-print the plist file:
+
+         # plutil -convert xml1 decoded_policy.plist
+
+         Note that <ChromePolicy> is the preferred key to configure Chrome.
+         If <ChromePolicy> is present then <EncodedChromePolicy> is ignored. '''
+
+def GetWriter(config):
+  '''Factory method for creating IOSPlistWriter objects.
+  See the constructor of TemplateWriter for description of
+  arguments.
+  '''
+  return IOSPlistWriter(['ios'], config)
+
+
+class IOSPlistWriter(plist_writer.PListWriter):
+  '''Class for generating policy templates in the iOS plist format.
+  It is used by PolicyTemplateGenerator to write plist files.
+  '''
+
+  # Overridden.
+  def IsPolicySupported(self, policy):
+    # Output examples only for policies that are supported on iOS.
+    for support_on in policy['supported_on']:
+      if ('ios' in support_on['platforms'] and
+          support_on['until_version'] == '' and
+          super(IOSPlistWriter, self).IsPolicySupported(policy)):
+        return True
+    return False
+
+  def _WriteValue(self, parent, value):
+    if type(value) == bool:
+      self.AddElement(parent, 'true' if value else 'false')
+    elif type(value) == int:
+      self.AddElement(parent, 'integer', {}, str(value))
+    elif type(value) == str:
+      self.AddElement(parent, 'string', {}, value)
+    elif type(value) == list:
+      array = self.AddElement(parent, 'array')
+      for element in value:
+        self._WriteValue(array, element)
+    elif type(value) == dict:
+      dic = self.AddElement(parent, 'dict')
+      for k, v in sorted(value.iteritems()):
+        self.AddElement(dic, 'key', {}, k)
+        self._WriteValue(dic, v)
+    else:
+      raise ValueError('Unsupported type in example value: ' + type(value))
+
+  # Overridden.
+  def WritePolicy(self, policy):
+    for dict in [self._dict, self._encoded_dict]:
+      self.AddElement(dict, 'key', {}, policy['name'])
+      self._WriteValue(dict, policy['example_value'])
+
+  # Overridden.
+  # |self._plist| is created in super.Init().
+  def BeginTemplate(self):
+    self._plist.attributes['version'] = '1.0'
+    self._root_dict = self.AddElement(self._plist, 'dict')
+    self.AddComment(self._root_dict, CHROME_POLICY_COMMENT)
+    self._dict = self._AddKeyValuePair(self._root_dict, 'ChromePolicy', 'dict')
+
+    self._encoded_plist.attributes['version'] = '1.0'
+    self._encoded_dict = self.AddElement(self._encoded_plist, 'dict')
+
+  # Overridden.
+  def EndTemplate(self):
+    # Add the "EncodedChromePolicy" entry.
+    encoded = base64.b64encode(self._encoded_doc.toxml())
+    self.AddComment(self._root_dict, ENCODED_CHROME_POLICY_COMMENT)
+    self._AddStringKeyValuePair(self._root_dict, 'EncodedChromePolicy', encoded)
+
+  # Overridden.
+  def Init(self):
+    super(IOSPlistWriter, self).Init()
+    # Create a secondary DOM for the EncodedChromePolicy Plist, which will be
+    # serialized and encoded in EndTemplate.
+    self._encoded_doc = self.CreatePlistDocument()
+    self._encoded_plist = self._encoded_doc.documentElement
+
+  # Overridden.
+  def GetTemplateText(self):
+    return self.ToPrettyXml(self._doc, encoding='UTF-8')
Property changes on: grit/format/policy_templates/writers/ios_plist_writer.py
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