| /* |
| * 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_function.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_dom_window.h" |
| #include "third_party/blink/renderer/core/frame/local_frame.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/heap/heap.h" |
| #include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h" |
| #include "third_party/blink/renderer/platform/instrumentation/use_counter.h" |
| #include "third_party/blink/renderer/platform/wtf/casting.h" |
| |
| namespace blink { |
| |
| ScheduledAction* ScheduledAction::Create(ScriptState* script_state, |
| ExecutionContext* target, |
| V8Function* handler, |
| const Vector<ScriptValue>& arguments) { |
| if (!script_state->World().IsWorkerWorld()) { |
| if (!BindingSecurity::ShouldAllowAccessToFrame( |
| EnteredDOMWindow(script_state->GetIsolate()), |
| To<Document>(target)->GetFrame(), |
| BindingSecurity::ErrorReportOption::kDoNotReport)) { |
| UseCounter::Count(target, WebFeature::kScheduledActionIgnored); |
| return MakeGarbageCollected<ScheduledAction>(script_state); |
| } |
| } |
| return MakeGarbageCollected<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()), |
| To<Document>(target)->GetFrame(), |
| BindingSecurity::ErrorReportOption::kDoNotReport)) { |
| UseCounter::Count(target, WebFeature::kScheduledActionIgnored); |
| return MakeGarbageCollected<ScheduledAction>(script_state); |
| } |
| } |
| return MakeGarbageCollected<ScheduledAction>(script_state, handler); |
| } |
| |
| ScheduledAction::ScheduledAction(ScriptState* script_state, |
| V8Function* function, |
| const Vector<ScriptValue>& arguments) |
| : script_state_( |
| MakeGarbageCollected<ScriptStateProtectingContext>(script_state)), |
| function_(function), |
| arguments_(arguments) {} |
| |
| ScheduledAction::ScheduledAction(ScriptState* script_state, const String& code) |
| : script_state_( |
| MakeGarbageCollected<ScriptStateProtectingContext>(script_state)), |
| code_(code) {} |
| |
| ScheduledAction::ScheduledAction(ScriptState* script_state) |
| : script_state_( |
| MakeGarbageCollected<ScriptStateProtectingContext>(script_state)) {} |
| |
| ScheduledAction::~ScheduledAction() { |
| // Verify that owning DOMTimer has eagerly disposed. |
| DCHECK(!script_state_); |
| DCHECK(!function_); |
| DCHECK(arguments_.IsEmpty()); |
| DCHECK(code_.IsNull()); |
| } |
| |
| void ScheduledAction::Dispose() { |
| script_state_->Reset(); |
| script_state_.Clear(); |
| if (function_) { |
| // setTimeout is pretty common and heavily used, and we need a special |
| // optimization to let V8 Scavenger GC collect the function object as |
| // soon as possible in order to reduce the memory usage. |
| // See also https://crbug.com/919474 and https://crbug.com/919475 . |
| // |
| // This optimization is safe because this ScheduledAction *owns* |function_| |
| // (i.e. no other objects reference |function_|) and this ScheduledAction |
| // immediately discards |function_| (so never uses it). |
| function_->DisposeV8FunctionImmediatelyToReduceMemoryFootprint(); |
| function_.Clear(); |
| } |
| arguments_.clear(); |
| code_ = String(); |
| } |
| |
| 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 (auto* document = DynamicTo<Document>(context)) { |
| LocalFrame* frame = document->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(To<WorkerGlobalScope>(context)); |
| } |
| } |
| |
| void ScheduledAction::Trace(blink::Visitor* visitor) { |
| visitor->Trace(script_state_); |
| visitor->Trace(function_); |
| } |
| |
| void ScheduledAction::Execute(LocalFrame* frame) { |
| DCHECK(script_state_->ContextIsValid()); |
| |
| // https://html.spec.whatwg.org/C/#timer-initialisation-steps |
| TRACE_EVENT0("v8", "ScheduledAction::execute"); |
| if (function_) { |
| DVLOG(1) << "ScheduledAction::execute " << this << ": have function"; |
| function_->InvokeAndReportException(frame->DomWindow(), arguments_); |
| } else { |
| DVLOG(1) << "ScheduledAction::execute " << this |
| << ": executing from source"; |
| // We're using |SanitizeScriptErrors::kDoNotSanitize| to keep the existing |
| // behavior, but this causes failures on |
| // wpt/html/webappapis/scripting/processing-model-2/compile-error-cross-origin-setTimeout.html |
| // and friends. |
| frame->GetScriptController().ExecuteScriptAndReturnValue( |
| script_state_->GetContext(), |
| ScriptSourceCode(code_, |
| ScriptSourceLocationType::kEvalForScheduledAction), |
| KURL(), SanitizeScriptErrors::kDoNotSanitize); |
| } |
| |
| // The frame might be invalid at this point because JavaScript could have |
| // released it. |
| } |
| |
| void ScheduledAction::Execute(WorkerGlobalScope* worker) { |
| DCHECK(script_state_->ContextIsValid()); |
| DCHECK(worker->GetThread()->IsCurrentThread()); |
| |
| // https://html.spec.whatwg.org/C/#timer-initialisation-steps |
| if (function_) { |
| function_->InvokeAndReportException(worker, arguments_); |
| } else { |
| // We're using |SanitizeScriptErrors::kDoNotSanitize| to keep the existing |
| // behavior, but this causes failures on |
| // wpt/html/webappapis/scripting/processing-model-2/compile-error-cross-origin-setTimeout.html |
| // and friends. |
| worker->ScriptController()->Evaluate( |
| ScriptSourceCode(code_, |
| ScriptSourceLocationType::kEvalForScheduledAction), |
| SanitizeScriptErrors::kDoNotSanitize); |
| } |
| } |
| |
| } // namespace blink |
