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// Copyright 2018 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.
#include "third_party/blink/renderer/core/trustedtypes/trusted_type_policy.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_create_html_callback.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_create_script_callback.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_create_url_callback.h"
#include "third_party/blink/renderer/core/trustedtypes/trusted_html.h"
#include "third_party/blink/renderer/core/trustedtypes/trusted_script.h"
#include "third_party/blink/renderer/core/trustedtypes/trusted_script_url.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/bindings/to_v8.h"
#include "third_party/blink/renderer/platform/runtime_enabled_features.h"
namespace blink {
TrustedTypePolicy::TrustedTypePolicy(const String& policy_name,
TrustedTypePolicyOptions* policy_options)
: name_(policy_name), policy_options_(policy_options) {
DCHECK(policy_options_);
}
TrustedHTML* TrustedTypePolicy::createHTML(ScriptState* script_state,
const String& input,
const HeapVector<ScriptValue>& args,
ExceptionState& exception_state) {
return CreateHTML(script_state->GetIsolate(), input, args, exception_state);
}
TrustedScript* TrustedTypePolicy::createScript(
ScriptState* script_state,
const String& input,
const HeapVector<ScriptValue>& args,
ExceptionState& exception_state) {
return CreateScript(script_state->GetIsolate(), input, args, exception_state);
}
TrustedScriptURL* TrustedTypePolicy::createScriptURL(
ScriptState* script_state,
const String& input,
const HeapVector<ScriptValue>& args,
ExceptionState& exception_state) {
return CreateScriptURL(script_state->GetIsolate(), input, args,
exception_state);
}
TrustedHTML* TrustedTypePolicy::CreateHTML(v8::Isolate* isolate,
const String& input,
const HeapVector<ScriptValue>& args,
ExceptionState& exception_state) {
if (!policy_options_->hasCreateHTML()) {
exception_state.ThrowTypeError(
"Policy " + name_ +
"'s TrustedTypePolicyOptions did not specify a 'createHTML' member.");
return nullptr;
}
v8::TryCatch try_catch(isolate);
String html;
if (!policy_options_->createHTML()->Invoke(nullptr, input, args).To(&html)) {
DCHECK(try_catch.HasCaught());
exception_state.RethrowV8Exception(try_catch.Exception());
return nullptr;
}
return MakeGarbageCollected<TrustedHTML>(html);
}
TrustedScript* TrustedTypePolicy::CreateScript(
v8::Isolate* isolate,
const String& input,
const HeapVector<ScriptValue>& args,
ExceptionState& exception_state) {
if (!policy_options_->hasCreateScript()) {
exception_state.ThrowTypeError(
"Policy " + name_ +
"'s TrustedTypePolicyOptions did not specify a 'createScript' member.");
return nullptr;
}
v8::TryCatch try_catch(isolate);
String script;
if (!policy_options_->createScript()
->Invoke(nullptr, input, args)
.To(&script)) {
DCHECK(try_catch.HasCaught());
exception_state.RethrowV8Exception(try_catch.Exception());
return nullptr;
}
return MakeGarbageCollected<TrustedScript>(script);
}
TrustedScriptURL* TrustedTypePolicy::CreateScriptURL(
v8::Isolate* isolate,
const String& input,
const HeapVector<ScriptValue>& args,
ExceptionState& exception_state) {
if (!policy_options_->hasCreateScriptURL()) {
exception_state.ThrowTypeError("Policy " + name_ +
"'s TrustedTypePolicyOptions did not "
"specify a 'createScriptURL' member.");
return nullptr;
}
v8::TryCatch try_catch(isolate);
String script_url;
if (!policy_options_->createScriptURL()
->Invoke(nullptr, input, args)
.To(&script_url)) {
DCHECK(try_catch.HasCaught());
exception_state.RethrowV8Exception(try_catch.Exception());
return nullptr;
}
return MakeGarbageCollected<TrustedScriptURL>(script_url);
}
bool TrustedTypePolicy::HasCreateHTML() {
return policy_options_->hasCreateHTML();
}
bool TrustedTypePolicy::HasCreateScript() {
return policy_options_->hasCreateScript();
}
bool TrustedTypePolicy::HasCreateScriptURL() {
return policy_options_->hasCreateScriptURL();
}
String TrustedTypePolicy::name() const {
return name_;
}
void TrustedTypePolicy::Trace(Visitor* visitor) const {
visitor->Trace(policy_options_);
ScriptWrappable::Trace(visitor);
}
} // namespace blink
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