src/third_party/WebKit/Source/bindings/modules/v8/custom/V8CryptoKeyCustom.cpp

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "config.h"
   6 #include "bindings/modules/v8/V8CryptoKey.h"
   7
   8 #include "bindings/core/v8/Dictionary.h"
   9 #include "bindings/core/v8/V8Binding.h"
  10 #include "bindings/core/v8/V8Uint8Array.h"
  11 #include "public/platform/WebCryptoKeyAlgorithm.h"
  12 #include "wtf/Uint8Array.h"
  13
  14 namespace blink {
  15
  16 class DictionaryBuilder : public blink::WebCryptoKeyAlgorithmDictionary {
  17 public:
  18     DictionaryBuilder(v8::Local<v8::Object> holder, v8::Isolate* isolate)
  19         : m_holder(holder)
  20         , m_isolate(isolate)
  21         , m_dictionary(Dictionary::createEmpty(isolate))
  22     {
  23     }
  24
  25     virtual void setString(const char* propertyName, const char* value)
  26     {
  27         m_dictionary.set(propertyName, value);
  28     }
  29
  30     virtual void setUint(const char* propertyName, unsigned value)
  31     {
  32         m_dictionary.set(propertyName, value);
  33     }
  34
  35     virtual void setAlgorithm(const char* propertyName, const blink::WebCryptoAlgorithm& algorithm)
  36     {
  37         ASSERT(algorithm.paramsType() == blink::WebCryptoAlgorithmParamsTypeNone);
  38
  39         Dictionary algorithmValue = Dictionary::createEmpty(m_isolate);
  40         algorithmValue.set("name", blink::WebCryptoAlgorithm::lookupAlgorithmInfo(algorithm.id())->name);
  41         m_dictionary.set(propertyName, algorithmValue);
  42     }
  43
  44     virtual void setUint8Array(const char* propertyName, const blink::WebVector<unsigned char>& vector)
  45     {
  46         m_dictionary.set(propertyName, toV8(DOMUint8Array::create(vector.data(), vector.size()), m_holder, m_isolate));
  47     }
  48
  49     const Dictionary& dictionary() const { return m_dictionary; }
  50
  51 private:
  52     v8::Local<v8::Object> m_holder;
  53     v8::Isolate* m_isolate;
  54     Dictionary m_dictionary;
  55 };
  56
  57 void V8CryptoKey::algorithmAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info)
  58 {
  59     CryptoKey* impl = V8CryptoKey::toImpl(info.Holder());
  60
  61     DictionaryBuilder builder(info.Holder(), info.GetIsolate());
  62     impl->key().algorithm().writeToDictionary(&builder);
  63
  64     v8SetReturnValue(info, builder.dictionary().v8Value());
  65 }
  66
  67 } // namespace blink