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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/media/webcontentdecryptionmodule_impl.h"
#include <map>
#include <vector>
#include "base/basictypes.h"
#include "base/bind.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "content/renderer/media/cdm_session_adapter.h"
#include "content/renderer/media/crypto/key_systems.h"
#include "content/renderer/media/webcontentdecryptionmodulesession_impl.h"
#include "media/base/media_keys.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/web/WebSecurityOrigin.h"
#include "url/gurl.h"
#if defined(ENABLE_PEPPER_CDMS)
#include "content/renderer/media/crypto/pepper_cdm_wrapper_impl.h"
#endif
namespace blink {
class WebFrame;
}
namespace content {
WebContentDecryptionModuleImpl* WebContentDecryptionModuleImpl::Create(
blink::WebLocalFrame* frame,
const blink::WebSecurityOrigin& security_origin,
const base::string16& key_system) {
DCHECK(frame);
DCHECK(!security_origin.isNull());
DCHECK(!key_system.empty());
// TODO(ddorwin): Guard against this in supported types check and remove this.
// Chromium only supports ASCII key systems.
if (!IsStringASCII(key_system)) {
NOTREACHED();
return NULL;
}
std::string key_system_ascii = base::UTF16ToASCII(key_system);
if (!IsConcreteSupportedKeySystem(key_system_ascii))
return NULL;
// If unique security origin, don't try to create the CDM.
if (security_origin.isUnique() || security_origin.toString() == "null") {
DLOG(ERROR) << "CDM use not allowed for unique security origin.";
return NULL;
}
scoped_refptr<CdmSessionAdapter> adapter(new CdmSessionAdapter());
GURL security_origin_as_gurl(security_origin.toString());
if (!adapter->Initialize(
#if defined(ENABLE_PEPPER_CDMS)
base::Bind(&PepperCdmWrapperImpl::Create, frame),
#endif
key_system_ascii,
security_origin_as_gurl)) {
return NULL;
}
return new WebContentDecryptionModuleImpl(adapter);
}
WebContentDecryptionModuleImpl::WebContentDecryptionModuleImpl(
scoped_refptr<CdmSessionAdapter> adapter)
: adapter_(adapter) {}
WebContentDecryptionModuleImpl::~WebContentDecryptionModuleImpl() {
}
// The caller owns the created session.
blink::WebContentDecryptionModuleSession*
WebContentDecryptionModuleImpl::createSession(
blink::WebContentDecryptionModuleSession::Client* client) {
return adapter_->CreateSession(client);
}
media::Decryptor* WebContentDecryptionModuleImpl::GetDecryptor() {
return adapter_->GetDecryptor();
}
#if defined(OS_ANDROID)
int WebContentDecryptionModuleImpl::GetCdmId() const {
return adapter_->GetCdmId();
}
#endif // defined(OS_ANDROID)
} // namespace content
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