Implement cross-origin attributes using access check interceptors.

third_party/WebKit/Source/bindings/scripts/v8_methods.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 25 matching lines @@
 
 from idl_definitions import IdlArgument, IdlOperation
 from idl_types import IdlTypeBase, IdlUnionType, inherits_interface
 from v8_globals import includes
 import v8_types
 import v8_utilities
 from v8_utilities import (has_extended_attribute_value, is_unforgeable,
                           is_legacy_interface_type_checking)
 
 
-# Methods with any of these require custom method registration code in the
-# interface's configure*Template() function.
-CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES = frozenset([
-    'DoNotCheckSecurity',
-])
-
-
 def method_is_visible(method, interface_is_partial):
     if 'overloads' in method:
         return method['overloads']['visible'] and not (method['overloads']['has_partial_overloads'] and interface_is_partial)
     return method['visible'] and 'overload_index' not in method
 
 
 def conditionally_exposed(method):
     exposed = method['overloads']['exposed_test_all'] if 'overloads' in method else method['exposed_test']
     secure_context = method['overloads']['secure_context_test_all'] if 'overloads' in method else method['secure_context_test']
     return exposed or secure_context
 
 
 def filter_conditionally_exposed(methods, interface_is_partial):
     return [method for method in methods if (
         method_is_visible(method, interface_is_partial) and conditionally_exposed(method))]
 
 
 def custom_registration(method):
+    # TODO(dcheng): Currently, bindings must create a function object for each
+    # realm as a hack to support the incumbent realm. Remove the need for custom
+    # registration when Blink properly supports the incumbent realm.
+    if method['is_cross_origin']:
+        return True
     if 'overloads' in method:
-        return (method['overloads']['has_custom_registration_all'] or
-                method['overloads']['runtime_determined_lengths'] or
+        return (method['overloads']['runtime_determined_lengths'] or
                 (method['overloads']['runtime_enabled_function_all'] and not conditionally_exposed(method)))
-    return (method['has_custom_registration'] or
-            (method['runtime_enabled_function'] and not conditionally_exposed(method)))
+    return method['runtime_enabled_function'] and not conditionally_exposed(method)
 
 
 def filter_custom_registration(methods, interface_is_partial):
     return [method for method in methods if (
         method_is_visible(method, interface_is_partial) and custom_registration(method))]
 
 
 def filter_method_configuration(methods, interface_is_partial):
     return [method for method in methods if
             method_is_visible(method, interface_is_partial) and
@@ skipping 55 matching lines @@
     is_call_with_script_arguments = has_extended_attribute_value(method, 'CallWith', 'ScriptArguments')
     if is_call_with_script_arguments:
         includes.update(['bindings/core/v8/ScriptCallStack.h',
                          'core/inspector/ScriptArguments.h'])
     is_call_with_script_state = has_extended_attribute_value(method, 'CallWith', 'ScriptState')
     is_call_with_this_value = has_extended_attribute_value(method, 'CallWith', 'ThisValue')
     if is_call_with_script_state or is_call_with_this_value:
         includes.add('bindings/core/v8/ScriptState.h')
 
     # [CheckSecurity]
-    is_do_not_check_security = 'DoNotCheckSecurity' in extended_attributes
+    is_cross_origin = 'CrossOrigin' in extended_attributes
     is_check_security_for_receiver = (
         has_extended_attribute_value(interface, 'CheckSecurity', 'Receiver') and
-        not is_do_not_check_security)
+        not is_cross_origin)
     is_check_security_for_return_value = (
         has_extended_attribute_value(method, 'CheckSecurity', 'ReturnValue'))
     if is_check_security_for_receiver or is_check_security_for_return_value:
         includes.add('bindings/core/v8/BindingSecurity.h')
 
     is_ce_reactions = 'CEReactions' in extended_attributes
     if is_ce_reactions:
         includes.add('core/dom/custom/CEReactionsScope.h')
     is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
     if is_custom_element_callbacks:
@@ skipping 18 matching lines @@
 
     return {
         'activity_logging_world_list': v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
         'arguments': argument_contexts,
         'argument_declarations_for_private_script':
             argument_declarations_for_private_script(interface, method),
         'cpp_type': (v8_types.cpp_template_type('Nullable', idl_type.cpp_type)
                      if idl_type.is_explicit_nullable else idl_type.cpp_type),
         'cpp_value': this_cpp_value,
         'cpp_type_initializer': idl_type.cpp_type_initializer,
-        'custom_registration_extended_attributes':
-            CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES.intersection(
-                extended_attributes.iterkeys()),
         'deprecate_as': v8_utilities.deprecate_as(method),  # [DeprecateAs]
         'do_not_test_new_object': 'DoNotTestNewObject' in extended_attributes,
         'exposed_test': v8_utilities.exposed(method, interface),  # [Exposed]
-        # TODO(yukishiino): Retire has_custom_registration flag.  Should be
-        # replaced with V8DOMConfiguration::PropertyLocationConfiguration.
-        'has_custom_registration':
-            v8_utilities.has_extended_attribute(
-                method, CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES),
         'has_exception_state':
             is_raises_exception or
             is_check_security_for_receiver or
             any(argument for argument in arguments
                 if (argument.idl_type.name == 'SerializedScriptValue' or
                     argument_conversion_needs_exception_state(method, argument))),
         'has_optional_argument_without_default_value':
             any(True for argument_context in argument_contexts
                 if argument_context['is_optional_without_default_value']),
         'idl_type': idl_type.base_type,
         'is_call_with_execution_context': has_extended_attribute_value(method, 'CallWith', 'ExecutionContext'),
         'is_call_with_script_arguments': is_call_with_script_arguments,
         'is_call_with_script_state': is_call_with_script_state,
         'is_call_with_this_value': is_call_with_this_value,
         'is_ce_reactions': is_ce_reactions,
         'is_check_security_for_receiver': is_check_security_for_receiver,
         'is_check_security_for_return_value': is_check_security_for_return_value,
+        'is_cross_origin': 'CrossOrigin' in extended_attributes,
         'is_custom': 'Custom' in extended_attributes and
             not (is_custom_call_prologue or is_custom_call_epilogue),
         'is_custom_call_prologue': is_custom_call_prologue,
         'is_custom_call_epilogue': is_custom_call_epilogue,
         'is_custom_element_callbacks': is_custom_element_callbacks,
-        'is_do_not_check_security': is_do_not_check_security,
         'is_explicit_nullable': idl_type.is_explicit_nullable,
         'is_implemented_in_private_script': is_implemented_in_private_script,
         'is_new_object': 'NewObject' in extended_attributes,
         'is_partial_interface_member':
             'PartialInterfaceImplementedAs' in extended_attributes,
         'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
         'is_post_message': is_post_message,
         'is_raises_exception': is_raises_exception,
         'is_static': is_static,
         'is_unforgeable': is_unforgeable(interface, method),
@@ skipping 282 matching lines @@
     return method.idl_type and method.idl_type.name == 'Promise'
 
 IdlOperation.returns_promise = property(method_returns_promise)
 
 
 def argument_conversion_needs_exception_state(method, argument):
     idl_type = argument.idl_type
     return (idl_type.v8_conversion_needs_exception_state or
             argument.is_variadic or
             (method.returns_promise and idl_type.is_string_type))