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/*
* Copyright (C) 2013 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "config.h"
#include "MockCDM.h"
#if ENABLE(ENCRYPTED_MEDIA_V2)
#include "CDM.h"
#include "CDMSession.h"
#include "MediaKeyError.h"
#include <runtime/JSCInlines.h>
#include <runtime/TypedArrayInlines.h>
#include <runtime/Uint8Array.h>
namespace WebCore {
class MockCDMSession : public CDMSession {
public:
MockCDMSession(CDMSessionClient*);
virtual ~MockCDMSession() { }
virtual void setClient(CDMSessionClient* client) override { m_client = client; }
virtual const String& sessionId() const override { return m_sessionId; }
virtual RefPtr<Uint8Array> generateKeyRequest(const String& mimeType, Uint8Array* initData, String& destinationURL, unsigned short& errorCode, uint32_t& systemCode) override;
virtual void releaseKeys() override;
virtual bool update(Uint8Array*, RefPtr<Uint8Array>& nextMessage, unsigned short& errorCode, uint32_t& systemCode) override;
protected:
CDMSessionClient* m_client;
String m_sessionId;
};
bool MockCDM::supportsKeySystem(const String& keySystem)
{
return equalLettersIgnoringASCIICase(keySystem, "com.webcore.mock");
}
bool MockCDM::supportsKeySystemAndMimeType(const String& keySystem, const String& mimeType)
{
if (!supportsKeySystem(keySystem))
return false;
return equalLettersIgnoringASCIICase(mimeType, "video/mock");
}
bool MockCDM::supportsMIMEType(const String& mimeType)
{
return equalLettersIgnoringASCIICase(mimeType, "video/mock");
}
std::unique_ptr<CDMSession> MockCDM::createSession(CDMSessionClient* client)
{
return std::make_unique<MockCDMSession>(client);
}
static Uint8Array* initDataPrefix()
{
const unsigned char prefixData[] = { 'm', 'o', 'c', 'k' };
static Uint8Array* prefix = Uint8Array::create(prefixData, WTF_ARRAY_LENGTH(prefixData)).leakRef();
return prefix;
}
static Uint8Array* keyPrefix()
{
static const unsigned char prefixData[] = {'k', 'e', 'y'};
static Uint8Array* prefix = Uint8Array::create(prefixData, WTF_ARRAY_LENGTH(prefixData)).leakRef();
return prefix;
}
static Uint8Array* keyRequest()
{
static const unsigned char requestData[] = {'r', 'e', 'q', 'u', 'e', 's', 't'};
static Uint8Array* request = Uint8Array::create(requestData, WTF_ARRAY_LENGTH(requestData)).leakRef();
return request;
}
static String generateSessionId()
{
static int monotonicallyIncreasingSessionId = 0;
return String::number(monotonicallyIncreasingSessionId++);
}
MockCDMSession::MockCDMSession(CDMSessionClient* client)
: m_client(client)
, m_sessionId(generateSessionId())
{
}
RefPtr<Uint8Array> MockCDMSession::generateKeyRequest(const String&, Uint8Array* initData, String&, unsigned short& errorCode, uint32_t&)
{
for (unsigned i = 0; i < initDataPrefix()->length(); ++i) {
if (!initData || i >= initData->length() || initData->item(i) != initDataPrefix()->item(i)) {
errorCode = MediaKeyError::MEDIA_KEYERR_UNKNOWN;
return nullptr;
}
}
return keyRequest();
}
void MockCDMSession::releaseKeys()
{
// no-op
}
bool MockCDMSession::update(Uint8Array* key, RefPtr<Uint8Array>&, unsigned short& errorCode, uint32_t&)
{
for (unsigned i = 0; i < keyPrefix()->length(); ++i) {
if (i >= key->length() || key->item(i) != keyPrefix()->item(i)) {
errorCode = MediaKeyError::MEDIA_KEYERR_CLIENT;
return false;
}
}
return true;
}
}
#endif // ENABLE(ENCRYPTED_MEDIA_V2)
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