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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 "MediaKeyError.h"
#include <wtf/Uint8Array.h>
namespace WebCore {
class MockCDMSession : public CDMSession {
public:
static PassOwnPtr<MockCDMSession> create() { return adoptPtr(new MockCDMSession()); }
virtual ~MockCDMSession() { }
virtual const String& sessionId() const OVERRIDE { return m_sessionId; }
virtual PassRefPtr<Uint8Array> generateKeyRequest(const String& mimeType, Uint8Array* initData, String& destinationURL, unsigned short& errorCode, unsigned long& systemCode) OVERRIDE;
virtual void releaseKeys() OVERRIDE;
virtual bool update(Uint8Array*, RefPtr<Uint8Array>& nextMessage, unsigned short& errorCode, unsigned long& systemCode) OVERRIDE;
protected:
MockCDMSession();
String m_sessionId;
};
bool MockCDM::supportsKeySytem(const String& keySystem)
{
return equalIgnoringCase(keySystem, "com.webcore.mock");
}
bool MockCDM::supportsMIMEType(const String& mimeType)
{
return equalIgnoringCase(mimeType, "video/mock");
}
PassOwnPtr<CDMSession> MockCDM::createSession()
{
return MockCDMSession::create();
}
static Uint8Array* initDataPrefix()
{
static const unsigned char prefixData[] = {'m', 'o', 'c', 'k'};
DEFINE_STATIC_LOCAL(RefPtr<Uint8Array>, prefix, ());
static bool initialized = false;
if (!initialized) {
initialized = true;
prefix = Uint8Array::create(prefixData, sizeof(prefixData) / sizeof(prefixData[0]));
}
return prefix.get();
}
static Uint8Array* keyPrefix()
{
static const unsigned char prefixData[] = {'k', 'e', 'y'};
DEFINE_STATIC_LOCAL(RefPtr<WTF::Uint8Array>, prefix, ());
static bool initialized = false;
if (!initialized) {
initialized = true;
prefix = Uint8Array::create(prefixData, sizeof(prefixData) / sizeof(prefixData[0]));
}
return prefix.get();
}
static Uint8Array* keyRequest()
{
static const unsigned char requestData[] = {'r', 'e', 'q', 'u', 'e', 's', 't'};
DEFINE_STATIC_LOCAL(RefPtr<WTF::Uint8Array>, request, ());
static bool initialized = false;
if (!initialized) {
initialized = true;
request = Uint8Array::create(requestData, sizeof(requestData) / sizeof(requestData[0]));
}
return request.get();
}
static String generateSessionId()
{
static int monotonicallyIncreasingSessionId = 0;
return String::number(monotonicallyIncreasingSessionId++);
}
MockCDMSession::MockCDMSession()
: m_sessionId(generateSessionId())
{
}
PassRefPtr<Uint8Array> MockCDMSession::generateKeyRequest(const String&, Uint8Array* initData, String&, unsigned short& errorCode, unsigned long&)
{
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 0;
}
}
return keyRequest();
}
void MockCDMSession::releaseKeys()
{
// no-op
}
bool MockCDMSession::update(Uint8Array* key, RefPtr<Uint8Array>&, unsigned short& errorCode, unsigned long&)
{
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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