ScriptPromise SubtleCrypto::importKey(ScriptState* scriptState, const String& rawFormat, const ArrayBufferOrArrayBufferViewOrDictionary& keyData, const AlgorithmIdentifier& rawAlgorithm, bool extractable, const Vector<String>& rawKeyUsages)
{
RefPtrWillBeRawPtr<CryptoResultImpl> result = CryptoResultImpl::create(scriptState);
ScriptPromise promise = result->promise();
if (!canAccessWebCrypto(scriptState, result.get()))
return promise;
WebCryptoKeyFormat format;
if (!CryptoKey::parseFormat(rawFormat, format, result.get()))
return promise;
if (keyData.isDictionary()) {
if (format != WebCryptoKeyFormatJwk) {
result->completeWithError(WebCryptoErrorTypeData, "Key data must be a buffer for non-JWK formats");
return promise;
}
} else if (format == WebCryptoKeyFormatJwk) {
result->completeWithError(WebCryptoErrorTypeData, "Key data must be an object for JWK import");
return promise;
}
WebCryptoKeyUsageMask keyUsages;
if (!CryptoKey::parseUsageMask(rawKeyUsages, keyUsages, result.get()))
return promise;
WebCryptoAlgorithm algorithm;
if (!parseAlgorithm(rawAlgorithm, WebCryptoOperationImportKey, algorithm, result.get()))
return promise;
const unsigned char* ptr = nullptr;
unsigned len = 0;
CString jsonUtf8;
if (keyData.isArrayBuffer()) {
ptr = static_cast<const unsigned char*>(keyData.getAsArrayBuffer()->data());
len = keyData.getAsArrayBuffer()->byteLength();
} else if (keyData.isArrayBufferView()) {
ptr = static_cast<const unsigned char*>(keyData.getAsArrayBufferView()->baseAddress());
len = keyData.getAsArrayBufferView()->byteLength();
} else if (keyData.isDictionary()) {
if (!copyJwkDictionaryToJson(keyData.getAsDictionary(), jsonUtf8, result.get()))
return promise;
ptr = reinterpret_cast<const unsigned char*>(jsonUtf8.data());
len = jsonUtf8.length();
}
histogramAlgorithm(scriptState->executionContext(), algorithm);
Platform::current()->crypto()->importKey(format, ptr, len, algorithm, extractable, keyUsages, result->result());
return promise;
}
v8::Local<v8::Value> toV8(const ArrayBufferOrArrayBufferViewOrDictionary& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate) {
switch (impl.m_type) {
case ArrayBufferOrArrayBufferViewOrDictionary::SpecificTypeNone:
return v8::Null(isolate);
case ArrayBufferOrArrayBufferViewOrDictionary::SpecificTypeArrayBuffer:
return toV8(impl.getAsArrayBuffer(), creationContext, isolate);
case ArrayBufferOrArrayBufferViewOrDictionary::SpecificTypeArrayBufferView:
return toV8(impl.getAsArrayBufferView(), creationContext, isolate);
case ArrayBufferOrArrayBufferViewOrDictionary::SpecificTypeDictionary:
return impl.getAsDictionary().v8Value();
default:
NOTREACHED();
}
return v8::Local<v8::Value>();
}