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/*
* 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
* 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/modules/crypto/crypto_result_impl.h"
#include "base/compiler_specific.h"
#include "base/containers/span.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/platform/web_crypto_algorithm.h"
#include "third_party/blink/renderer/bindings/core/v8/dictionary.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/bindings/core/v8/to_v8_traits.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_object_builder.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_throw_dom_exception.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_crypto_key.h"
#include "third_party/blink/renderer/core/dom/dom_exception.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/core/typed_arrays/dom_array_buffer.h"
#include "third_party/blink/renderer/modules/crypto/crypto_key.h"
#include "third_party/blink/renderer/modules/crypto/normalize_algorithm.h"
#include "third_party/blink/renderer/platform/bindings/script_state.h"
#include "third_party/blink/renderer/platform/bindings/v8_throw_exception.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
namespace blink {
static void RejectWithTypeError(const String& error_details,
ScriptPromiseResolverBase* resolver) {
// Duplicate some of the checks done by ScriptPromiseResolverBase.
if (!resolver->GetExecutionContext() ||
resolver->GetExecutionContext()->IsContextDestroyed())
return;
ScriptState::Scope scope(resolver->GetScriptState());
v8::Isolate* isolate = resolver->GetScriptState()->GetIsolate();
resolver->Reject(V8ThrowException::CreateTypeError(isolate, error_details));
}
ExceptionCode WebCryptoErrorToExceptionCode(WebCryptoErrorType error_type) {
switch (error_type) {
case kWebCryptoErrorTypeNotSupported:
return ToExceptionCode(DOMExceptionCode::kNotSupportedError);
case kWebCryptoErrorTypeSyntax:
return ToExceptionCode(DOMExceptionCode::kSyntaxError);
case kWebCryptoErrorTypeInvalidAccess:
return ToExceptionCode(DOMExceptionCode::kInvalidAccessError);
case kWebCryptoErrorTypeData:
return ToExceptionCode(DOMExceptionCode::kDataError);
case kWebCryptoErrorTypeOperation:
return ToExceptionCode(DOMExceptionCode::kOperationError);
case kWebCryptoErrorTypeType:
return ToExceptionCode(ESErrorType::kTypeError);
}
}
CryptoResultImpl::~CryptoResultImpl() {
DCHECK(!resolver_);
}
void CryptoResultImpl::Trace(Visitor* visitor) const {
visitor->Trace(resolver_);
ExecutionContextLifecycleObserver::Trace(visitor);
CryptoResult::Trace(visitor);
}
void CryptoResultImpl::ClearResolver() {
resolver_ = nullptr;
}
void CryptoResultImpl::CompleteWithError(WebCryptoErrorType error_type,
const WebString& error_details) {
if (!resolver_)
return;
ScriptState* resolver_script_state = resolver_->GetScriptState();
if (!IsInParallelAlgorithmRunnable(resolver_->GetExecutionContext(),
resolver_script_state)) {
return;
}
ScriptState::Scope script_state_scope(resolver_script_state);
ExceptionCode exception_code = WebCryptoErrorToExceptionCode(error_type);
// Handle TypeError separately, as it cannot be created using
// DOMException.
if (exception_code == ToExceptionCode(ESErrorType::kTypeError)) {
RejectWithTypeError(error_details, resolver_);
} else if (IsDOMExceptionCode(exception_code)) {
resolver_->Reject(V8ThrowDOMException::CreateOrDie(
resolver_script_state->GetIsolate(),
static_cast<DOMExceptionCode>(exception_code), error_details));
} else {
NOTREACHED();
}
ClearResolver();
}
void CryptoResultImpl::CompleteWithBuffer(base::span<const uint8_t> bytes) {
if (!resolver_)
return;
auto* buffer = DOMArrayBuffer::Create(bytes);
if (type_ == ResolverType::kTyped) {
resolver_->DowncastTo<DOMArrayBuffer>()->Resolve(buffer);
} else {
ScriptState* script_state = resolver_->GetScriptState();
ScriptState::Scope scope(script_state);
resolver_->DowncastTo<IDLAny>()->Resolve(buffer->ToV8(script_state));
}
ClearResolver();
}
void CryptoResultImpl::CompleteWithJson(std::string_view utf8_data) {
if (!resolver_)
return;
ScriptState* script_state = resolver_->GetScriptState();
ScriptState::Scope scope(script_state);
if (utf8_data.size() > v8::String::kMaxLength) {
// TODO(crbug.com/1316976): this should probably raise an exception instead.
LOG(FATAL) << "Result string is longer than v8::String::kMaxLength";
}
v8::TryCatch try_catch(script_state->GetIsolate());
v8::Local<v8::Value> json_dictionary =
FromJSONString(script_state, String::FromUTF8(utf8_data));
CHECK_EQ(type_, ResolverType::kAny);
if (try_catch.HasCaught()) {
resolver_->Reject(try_catch.Exception());
} else {
resolver_->DowncastTo<IDLAny>()->Resolve(json_dictionary);
}
ClearResolver();
}
void CryptoResultImpl::CompleteWithBoolean(bool b) {
if (!resolver_)
return;
CHECK_EQ(type_, ResolverType::kAny);
resolver_->DowncastTo<IDLAny>()->Resolve(
v8::Boolean::New(resolver_->GetScriptState()->GetIsolate(), b));
ClearResolver();
}
void CryptoResultImpl::CompleteWithKey(const WebCryptoKey& key) {
if (!resolver_)
return;
auto* result = MakeGarbageCollected<CryptoKey>(key);
if (type_ == ResolverType::kTyped) {
resolver_->DowncastTo<CryptoKey>()->Resolve(result);
} else {
ScriptState* script_state = resolver_->GetScriptState();
ScriptState::Scope scope(script_state);
resolver_->DowncastTo<IDLAny>()->Resolve(result->ToV8(script_state));
}
ClearResolver();
}
void CryptoResultImpl::CompleteWithKeyPair(const WebCryptoKey& public_key,
const WebCryptoKey& private_key) {
if (!resolver_)
return;
ScriptState* script_state = resolver_->GetScriptState();
ScriptState::Scope scope(script_state);
V8ObjectBuilder key_pair(script_state);
key_pair.Add("publicKey", MakeGarbageCollected<CryptoKey>(public_key));
key_pair.Add("privateKey", MakeGarbageCollected<CryptoKey>(private_key));
CHECK_EQ(type_, ResolverType::kAny);
resolver_->DowncastTo<IDLAny>()->Resolve(key_pair.V8Object());
ClearResolver();
}
void CryptoResultImpl::Cancel() {
cancel_->Cancel();
ClearResolver();
}
} // namespace blink
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