third_party/blink/renderer/bindings/core/v8/scheduled_action.cc - chromium/src - Git at Google

 /*
  * Copyright (C) 2007-2009 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
  * in the documentation and/or other materials provided with the
  * distribution.
  *     * Neither the name of Google Inc. nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

 #include "third_party/blink/renderer/bindings/core/v8/scheduled_action.h"

 #include "third_party/blink/renderer/bindings/core/v8/binding_security.h"
 #include "third_party/blink/renderer/bindings/core/v8/script_controller.h"
 #include "third_party/blink/renderer/bindings/core/v8/script_source_code.h"
 #include "third_party/blink/renderer/bindings/core/v8/script_value.h"
 #include "third_party/blink/renderer/bindings/core/v8/source_location.h"
 #include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h"
 #include "third_party/blink/renderer/bindings/core/v8/v8_gc_controller.h"
 #include "third_party/blink/renderer/bindings/core/v8/v8_script_runner.h"
 #include "third_party/blink/renderer/bindings/core/v8/worker_or_worklet_script_controller.h"
 #include "third_party/blink/renderer/core/dom/document.h"
 #include "third_party/blink/renderer/core/execution_context/execution_context.h"
 #include "third_party/blink/renderer/core/frame/local_frame.h"
 #include "third_party/blink/renderer/core/frame/use_counter.h"
 #include "third_party/blink/renderer/core/workers/worker_global_scope.h"
 #include "third_party/blink/renderer/core/workers/worker_thread.h"
 #include "third_party/blink/renderer/platform/bindings/script_state.h"
 #include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h"

 namespace blink {

 ScheduledAction* ScheduledAction::Create(ScriptState* script_state,
                                          ExecutionContext* target,
                                          const ScriptValue& handler,
                                          const Vector<ScriptValue>& arguments) {
   DCHECK(handler.IsFunction());
   if (!script_state->World().IsWorkerWorld()) {
     if (!BindingSecurity::ShouldAllowAccessToFrame(
             EnteredDOMWindow(script_state->GetIsolate()),
             ToDocument(target)->GetFrame(),
             BindingSecurity::ErrorReportOption::kDoNotReport)) {
       UseCounter::Count(target, WebFeature::kScheduledActionIgnored);
       return new ScheduledAction(script_state);
     }
   }
   return new ScheduledAction(script_state, handler, arguments);
 }

 ScheduledAction* ScheduledAction::Create(ScriptState* script_state,
                                          ExecutionContext* target,
                                          const String& handler) {
   if (!script_state->World().IsWorkerWorld()) {
     if (!BindingSecurity::ShouldAllowAccessToFrame(
             EnteredDOMWindow(script_state->GetIsolate()),
             ToDocument(target)->GetFrame(),
             BindingSecurity::ErrorReportOption::kDoNotReport)) {
       UseCounter::Count(target, WebFeature::kScheduledActionIgnored);
       return new ScheduledAction(script_state);
     }
   }
   return new ScheduledAction(script_state, handler);
 }

 ScheduledAction::~ScheduledAction() {
   // Verify that owning DOMTimer has eagerly disposed.
   DCHECK(info_.IsEmpty());
 }

 void ScheduledAction::Dispose() {
   code_ = String();
   info_.Clear();
   function_.Clear();
   script_state_.Clear();
 }

 void ScheduledAction::Execute(ExecutionContext* context) {
   if (!script_state_->ContextIsValid()) {
     DVLOG(1) << "ScheduledAction::execute " << this << ": context is empty";
     return;
   }
   // ExecutionContext::CanExecuteScripts() relies on the current context to
   // determine if it is allowed. Enter the scope here.
   ScriptState::Scope scope(script_state_.Get());

   if (context->IsDocument()) {
     LocalFrame* frame = ToDocument(context)->GetFrame();
     if (!frame) {
       DVLOG(1) << "ScheduledAction::execute " << this << ": no frame";
       return;
     }
     if (!context->CanExecuteScripts(kAboutToExecuteScript)) {
       DVLOG(1) << "ScheduledAction::execute " << this
                << ": frame can not execute scripts";
       return;
     }
     Execute(frame);
   } else {
     DVLOG(1) << "ScheduledAction::execute " << this << ": worker scope";
     Execute(ToWorkerGlobalScope(context));
   }
 }

 ScheduledAction::ScheduledAction(ScriptState* script_state,
                                  const ScriptValue& function,
                                  const Vector<ScriptValue>& arguments)
     : script_state_(script_state), info_(script_state->GetIsolate()) {
   DCHECK(function.IsFunction());
   function_.Set(script_state->GetIsolate(),
                 v8::Local<v8::Function>::Cast(function.V8Value()));
   info_.ReserveCapacity(arguments.size());
   for (const ScriptValue& argument : arguments)
     info_.Append(argument.V8Value());
 }

 ScheduledAction::ScheduledAction(ScriptState* script_state, const String& code)
     : script_state_(script_state),
       info_(script_state->GetIsolate()),
       code_(code) {}

 ScheduledAction::ScheduledAction(ScriptState* script_state)
     : script_state_(script_state), info_(script_state->GetIsolate()) {}

 void ScheduledAction::Execute(LocalFrame* frame) {
   DCHECK(script_state_->ContextIsValid());

   TRACE_EVENT0("v8", "ScheduledAction::execute");
   if (!function_.IsEmpty()) {
     DVLOG(1) << "ScheduledAction::execute " << this << ": have function";
     v8::Local<v8::Function> function =
         function_.NewLocal(script_state_->GetIsolate());
     ScriptState* script_state_for_func =
         ScriptState::From(function->CreationContext());
     if (!script_state_for_func->ContextIsValid()) {
       DVLOG(1) << "ScheduledAction::execute " << this
                << ": function's context is empty";
       return;
     }
     Vector<v8::Local<v8::Value>> info;
     CreateLocalHandlesForArgs(&info);
     V8ScriptRunner::CallFunction(
         function, frame->GetDocument(), script_state_->GetContext()->Global(),
         info.size(), info.data(), script_state_->GetIsolate());
   } else {
     DVLOG(1) << "ScheduledAction::execute " << this
              << ": executing from source";
     frame->GetScriptController().ExecuteScriptAndReturnValue(
         script_state_->GetContext(),
         ScriptSourceCode(code_,
                          ScriptSourceLocationType::kEvalForScheduledAction));
   }

   // The frame might be invalid at this point because JavaScript could have
   // released it.
 }

 void ScheduledAction::Execute(WorkerGlobalScope* worker) {
   DCHECK(worker->GetThread()->IsCurrentThread());

   if (!script_state_->ContextIsValid()) {
     DVLOG(1) << "ScheduledAction::execute " << this << ": context is empty";
     return;
   }

   if (!function_.IsEmpty()) {
     ScriptState::Scope scope(script_state_.Get());
     v8::Local<v8::Function> function =
         function_.NewLocal(script_state_->GetIsolate());
     ScriptState* script_state_for_func =
         ScriptState::From(function->CreationContext());
     if (!script_state_for_func->ContextIsValid()) {
       DVLOG(1) << "ScheduledAction::execute " << this
                << ": function's context is empty";
       return;
     }
     Vector<v8::Local<v8::Value>> info;
     CreateLocalHandlesForArgs(&info);
     V8ScriptRunner::CallFunction(
         function, worker, script_state_->GetContext()->Global(), info.size(),
         info.data(), script_state_->GetIsolate());
   } else {
     worker->ScriptController()->Evaluate(ScriptSourceCode(
         code_, ScriptSourceLocationType::kEvalForScheduledAction));
   }
 }

 void ScheduledAction::CreateLocalHandlesForArgs(
     Vector<v8::Local<v8::Value>>* handles) {
   handles->ReserveCapacity(info_.Size());
   for (size_t i = 0; i < info_.Size(); ++i)
     handles->push_back(info_.Get(i));
 }

 }  // namespace blink
	/*
	* Copyright (C) 2007-2009 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
	* in the documentation and/or other materials provided with the
	* distribution.
	* * Neither the name of Google Inc. nor the names of its
	* contributors may be used to endorse or promote products derived from
	* this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#include "third_party/blink/renderer/bindings/core/v8/scheduled_action.h"

	#include "third_party/blink/renderer/bindings/core/v8/binding_security.h"
	#include "third_party/blink/renderer/bindings/core/v8/script_controller.h"
	#include "third_party/blink/renderer/bindings/core/v8/script_source_code.h"
	#include "third_party/blink/renderer/bindings/core/v8/script_value.h"
	#include "third_party/blink/renderer/bindings/core/v8/source_location.h"
	#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h"
	#include "third_party/blink/renderer/bindings/core/v8/v8_gc_controller.h"
	#include "third_party/blink/renderer/bindings/core/v8/v8_script_runner.h"
	#include "third_party/blink/renderer/bindings/core/v8/worker_or_worklet_script_controller.h"
	#include "third_party/blink/renderer/core/dom/document.h"
	#include "third_party/blink/renderer/core/execution_context/execution_context.h"
	#include "third_party/blink/renderer/core/frame/local_frame.h"
	#include "third_party/blink/renderer/core/frame/use_counter.h"
	#include "third_party/blink/renderer/core/workers/worker_global_scope.h"
	#include "third_party/blink/renderer/core/workers/worker_thread.h"
	#include "third_party/blink/renderer/platform/bindings/script_state.h"
	#include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h"

	namespace blink {

	ScheduledAction* ScheduledAction::Create(ScriptState* script_state,
	ExecutionContext* target,
	const ScriptValue& handler,
	const Vector<ScriptValue>& arguments) {
	DCHECK(handler.IsFunction());
	if (!script_state->World().IsWorkerWorld()) {
	if (!BindingSecurity::ShouldAllowAccessToFrame(
	EnteredDOMWindow(script_state->GetIsolate()),
	ToDocument(target)->GetFrame(),
	BindingSecurity::ErrorReportOption::kDoNotReport)) {
	UseCounter::Count(target, WebFeature::kScheduledActionIgnored);
	return new ScheduledAction(script_state);
	}
	}
	return new ScheduledAction(script_state, handler, arguments);
	}

	ScheduledAction* ScheduledAction::Create(ScriptState* script_state,
	ExecutionContext* target,
	const String& handler) {
	if (!script_state->World().IsWorkerWorld()) {
	if (!BindingSecurity::ShouldAllowAccessToFrame(
	EnteredDOMWindow(script_state->GetIsolate()),
	ToDocument(target)->GetFrame(),
	BindingSecurity::ErrorReportOption::kDoNotReport)) {
	UseCounter::Count(target, WebFeature::kScheduledActionIgnored);
	return new ScheduledAction(script_state);
	}
	}
	return new ScheduledAction(script_state, handler);
	}

	ScheduledAction::~ScheduledAction() {
	// Verify that owning DOMTimer has eagerly disposed.
	DCHECK(info_.IsEmpty());
	}

	void ScheduledAction::Dispose() {
	code_ = String();
	info_.Clear();
	function_.Clear();
	script_state_.Clear();
	}

	void ScheduledAction::Execute(ExecutionContext* context) {
	if (!script_state_->ContextIsValid()) {
	DVLOG(1) << "ScheduledAction::execute " << this << ": context is empty";
	return;
	}
	// ExecutionContext::CanExecuteScripts() relies on the current context to
	// determine if it is allowed. Enter the scope here.
	ScriptState::Scope scope(script_state_.Get());

	if (context->IsDocument()) {
	LocalFrame* frame = ToDocument(context)->GetFrame();
	if (!frame) {
	DVLOG(1) << "ScheduledAction::execute " << this << ": no frame";
	return;
	}
	if (!context->CanExecuteScripts(kAboutToExecuteScript)) {
	DVLOG(1) << "ScheduledAction::execute " << this
	<< ": frame can not execute scripts";
	return;
	}
	Execute(frame);
	} else {
	DVLOG(1) << "ScheduledAction::execute " << this << ": worker scope";
	Execute(ToWorkerGlobalScope(context));
	}
	}

	ScheduledAction::ScheduledAction(ScriptState* script_state,
	const ScriptValue& function,
	const Vector<ScriptValue>& arguments)
	: script_state_(script_state), info_(script_state->GetIsolate()) {
	DCHECK(function.IsFunction());
	function_.Set(script_state->GetIsolate(),
	v8::Local<v8::Function>::Cast(function.V8Value()));
	info_.ReserveCapacity(arguments.size());
	for (const ScriptValue& argument : arguments)
	info_.Append(argument.V8Value());
	}

	ScheduledAction::ScheduledAction(ScriptState* script_state, const String& code)
	: script_state_(script_state),
	info_(script_state->GetIsolate()),
	code_(code) {}

	ScheduledAction::ScheduledAction(ScriptState* script_state)
	: script_state_(script_state), info_(script_state->GetIsolate()) {}

	void ScheduledAction::Execute(LocalFrame* frame) {
	DCHECK(script_state_->ContextIsValid());

	TRACE_EVENT0("v8", "ScheduledAction::execute");
	if (!function_.IsEmpty()) {
	DVLOG(1) << "ScheduledAction::execute " << this << ": have function";
	v8::Local<v8::Function> function =
	function_.NewLocal(script_state_->GetIsolate());
	ScriptState* script_state_for_func =
	ScriptState::From(function->CreationContext());
	if (!script_state_for_func->ContextIsValid()) {
	DVLOG(1) << "ScheduledAction::execute " << this
	<< ": function's context is empty";
	return;
	}
	Vector<v8::Local<v8::Value>> info;
	CreateLocalHandlesForArgs(&info);
	V8ScriptRunner::CallFunction(
	function, frame->GetDocument(), script_state_->GetContext()->Global(),
	info.size(), info.data(), script_state_->GetIsolate());
	} else {
	DVLOG(1) << "ScheduledAction::execute " << this
	<< ": executing from source";
	frame->GetScriptController().ExecuteScriptAndReturnValue(
	script_state_->GetContext(),
	ScriptSourceCode(code_,
	ScriptSourceLocationType::kEvalForScheduledAction));
	}

	// The frame might be invalid at this point because JavaScript could have
	// released it.
	}

	void ScheduledAction::Execute(WorkerGlobalScope* worker) {
	DCHECK(worker->GetThread()->IsCurrentThread());

	if (!script_state_->ContextIsValid()) {
	DVLOG(1) << "ScheduledAction::execute " << this << ": context is empty";
	return;
	}

	if (!function_.IsEmpty()) {
	ScriptState::Scope scope(script_state_.Get());
	v8::Local<v8::Function> function =
	function_.NewLocal(script_state_->GetIsolate());
	ScriptState* script_state_for_func =
	ScriptState::From(function->CreationContext());
	if (!script_state_for_func->ContextIsValid()) {
	DVLOG(1) << "ScheduledAction::execute " << this
	<< ": function's context is empty";
	return;
	}
	Vector<v8::Local<v8::Value>> info;
	CreateLocalHandlesForArgs(&info);
	V8ScriptRunner::CallFunction(
	function, worker, script_state_->GetContext()->Global(), info.size(),
	info.data(), script_state_->GetIsolate());
	} else {
	worker->ScriptController()->Evaluate(ScriptSourceCode(
	code_, ScriptSourceLocationType::kEvalForScheduledAction));
	}
	}

	void ScheduledAction::CreateLocalHandlesForArgs(
	Vector<v8::Local<v8::Value>>* handles) {
	handles->ReserveCapacity(info_.Size());
	for (size_t i = 0; i < info_.Size(); ++i)
	handles->push_back(info_.Get(i));
	}

	} // namespace blink