[webcrypto] Make all of the crypto.subtle method failures asynchronous.

Source/modules/crypto/NormalizeAlgorithm.cpp

 /*
  * 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
@@ skipping 14 matching lines @@
  * 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 "config.h"
 #include "modules/crypto/NormalizeAlgorithm.h"
 
 #include "bindings/v8/Dictionary.h"
-#include "bindings/v8/ExceptionState.h"
-#include "bindings/v8/ExceptionStatePlaceholder.h"
-#include "core/dom/ExceptionCode.h"
+#include "platform/CryptoResult.h"
 #include "platform/NotImplemented.h"
 #include "public/platform/WebCryptoAlgorithmParams.h"
+#include "public/platform/WebString.h"
 #include "wtf/ArrayBuffer.h"
 #include "wtf/ArrayBufferView.h"
 #include "wtf/HashMap.h"
 #include "wtf/MathExtras.h"
 #include "wtf/Uint8Array.h"
 #include "wtf/Vector.h"
 #include "wtf/text/StringBuilder.h"
 #include "wtf/text/StringHash.h"
 
 namespace WebCore {
@@ skipping 320 matching lines @@
 bool parseAesKeyGenParams(const Dictionary& raw, OwnPtr<blink::WebCryptoAlgorithmParams>& params, const ErrorContext& context, String& errorDetails)
 {
     uint16_t length;
     if (!getUint16(raw, "length", length, context, errorDetails))
         return false;
 
     params = adoptPtr(new blink::WebCryptoAesKeyGenParams(length));
     return true;
 }
 
-bool parseAlgorithm(const Dictionary&, AlgorithmOperation, blink::WebCryptoAlgorithm&, ErrorContext, String&, ExceptionState&);
+bool parseAlgorithm(const Dictionary&, AlgorithmOperation, blink::WebCryptoAlgorithm&, ErrorContext, String&);
 
 bool parseHash(const Dictionary& raw, blink::WebCryptoAlgorithm& hash, ErrorContext context, String& errorDetails)
 {
     Dictionary rawHash;
     if (!raw.get("hash", rawHash)) {
         errorDetails = context.toString("hash", "Missing or not a dictionary");
         return false;
     }
 
     context.add("hash");
-    IgnorableExceptionState exceptionState;
-    return parseAlgorithm(rawHash, Digest, hash, context, errorDetails, exceptionState);
+    return parseAlgorithm(rawHash, Digest, hash, context, errorDetails);
 }
 
 bool parseHmacParams(const Dictionary& raw, OwnPtr<blink::WebCryptoAlgorithmParams>& params, const ErrorContext& context, String& errorDetails)
 {
     blink::WebCryptoAlgorithm hash;
     if (!parseHash(raw, hash, context, errorDetails))
         return false;
 
     params = adoptPtr(new blink::WebCryptoHmacParams(hash));
     return true;
@@ skipping 81 matching lines @@
     case blink::WebCryptoAlgorithmParamsTypeAesGcmParams:
     case blink::WebCryptoAlgorithmParamsTypeRsaOaepParams:
         // TODO
         notImplemented();
         break;
     }
     ASSERT_NOT_REACHED();
     return false;
 }
 
-bool parseAlgorithm(const Dictionary& raw, AlgorithmOperation op, blink::WebCryptoAlgorithm& algorithm, ErrorContext context, String& errorDetails, ExceptionState& exceptionState)
+bool parseAlgorithm(const Dictionary& raw, AlgorithmOperation op, blink::WebCryptoAlgorithm& algorithm, ErrorContext context, String& errorDetails)
 {
     context.add("Algorithm");
 
     if (!raw.isObject()) {
         errorDetails = context.toString("Not an object");
-        exceptionState.throwTypeError(errorDetails);
         return false;
     }
 
     String algorithmName;
     if (!raw.get("name", algorithmName)) {
         errorDetails = context.toString("name", "Missing or not a string");
-        exceptionState.throwDOMException(NotSupportedError, errorDetails);
         return false;
     }
 
     const AlgorithmInfo* info = AlgorithmRegistry::instance().lookupAlgorithmByName(algorithmName);
     if (!info) {
         errorDetails = context.toString("Unrecognized algorithm name");
-        exceptionState.throwDOMException(NotSupportedError, errorDetails);
         return false;
     }
 
     context.add(info->algorithmName);
 
     if (info->paramsForOperation[op] == UnsupportedOp) {
         errorDetails = context.toString("Unsupported operation");
-        exceptionState.throwDOMException(NotSupportedError, errorDetails);
         return false;
     }
 
     blink::WebCryptoAlgorithmParamsType paramsType = static_cast<blink::WebCryptoAlgorithmParamsType>(info->paramsForOperation[op]);
     OwnPtr<blink::WebCryptoAlgorithmParams> params;
     if (!parseAlgorithmParams(raw, paramsType, params, context, errorDetails))
         return false;
 
     algorithm = blink::WebCryptoAlgorithm(info->algorithmId, params.release());
     return true;
 }
 
 } // namespace
 
-bool parseAlgorithm(const Dictionary& raw, AlgorithmOperation op, blink::WebCryptoAlgorithm& algorithm, String& errorDetails, ExceptionState& exceptionState)
+bool parseAlgorithm(const Dictionary& raw, AlgorithmOperation op, blink::WebCryptoAlgorithm& algorithm, CryptoResult* result)
 {
-    return parseAlgorithm(raw, op, algorithm, ErrorContext(), errorDetails, exceptionState);
+    String errorDetails;
+    if (!parseAlgorithm(raw, op, algorithm, ErrorContext(), errorDetails)) {
+        result->completeWithError(errorDetails);
+        return false;
+    }
+    return true;
 }
 
 const char* algorithmIdToName(blink::WebCryptoAlgorithmId id)
 {
     return AlgorithmRegistry::instance().lookupAlgorithmById(id)->algorithmName;
 }
 
 } // namespace WebCore