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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/browser/media/android/media_drm_credential_manager.h"
#include "base/android/jni_android.h"
#include "base/android/scoped_java_ref.h"
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/location.h"
#include "base/message_loop/message_loop_proxy.h"
#include "jni/MediaDrmCredentialManager_jni.h"
#include "media/base/android/media_drm_bridge.h"
#include "url/gurl.h"
#include "widevine_cdm_version.h" // In SHARED_INTERMEDIATE_DIR.
using base::android::ScopedJavaGlobalRef;
namespace {
void MediaDrmCredentialManagerCallback(
const ScopedJavaGlobalRef<jobject>& j_media_drm_credential_manager_callback,
bool succeeded) {
JNIEnv* env = base::android::AttachCurrentThread();
content::Java_MediaDrmCredentialManagerCallback_onCredentialResetFinished(
env, j_media_drm_credential_manager_callback.obj(), succeeded);
}
} // namespace
namespace content {
MediaDrmCredentialManager::MediaDrmCredentialManager() {};
MediaDrmCredentialManager::~MediaDrmCredentialManager() {};
// static
MediaDrmCredentialManager* MediaDrmCredentialManager::GetInstance() {
return Singleton<MediaDrmCredentialManager>::get();
}
void MediaDrmCredentialManager::ResetCredentials(
const ResetCredentialsCB& reset_credentials_cb) {
// Ignore reset request if one is already in progress.
if (!reset_credentials_cb_.is_null())
return;
reset_credentials_cb_ = reset_credentials_cb;
// First reset the L3 credential.
if (!ResetCredentialsInternal(media::MediaDrmBridge::SECURITY_LEVEL_3)) {
// TODO(qinmin): We should post a task instead.
base::ResetAndReturn(&reset_credentials_cb_).Run(false);
}
}
// static
void ResetCredentials(
JNIEnv* env,
jclass clazz,
jobject j_media_drm_credential_manager_callback) {
MediaDrmCredentialManager* media_drm_credential_manager =
MediaDrmCredentialManager::GetInstance();
ScopedJavaGlobalRef<jobject> j_scoped_media_drm_credential_manager_callback;
j_scoped_media_drm_credential_manager_callback.Reset(
env, j_media_drm_credential_manager_callback);
MediaDrmCredentialManager::ResetCredentialsCB callback_runner =
base::Bind(&MediaDrmCredentialManagerCallback,
j_scoped_media_drm_credential_manager_callback);
media_drm_credential_manager->ResetCredentials(callback_runner);
}
void MediaDrmCredentialManager::OnResetCredentialsCompleted(
SecurityLevel security_level, bool success) {
if (security_level == media::MediaDrmBridge::SECURITY_LEVEL_3 && success) {
if (ResetCredentialsInternal(media::MediaDrmBridge::SECURITY_LEVEL_1))
return;
success = false;
}
base::ResetAndReturn(&reset_credentials_cb_).Run(success);
media_drm_bridge_.reset();
}
bool MediaDrmCredentialManager::ResetCredentialsInternal(
SecurityLevel security_level) {
media_drm_bridge_ =
media::MediaDrmBridge::CreateSessionless(kWidevineKeySystem);
if (!media_drm_bridge_)
return false;
ResetCredentialsCB reset_credentials_cb =
base::Bind(&MediaDrmCredentialManager::OnResetCredentialsCompleted,
base::Unretained(this), security_level);
if (!media_drm_bridge_->SetSecurityLevel(security_level)) {
// No need to reset credentials for unsupported |security_level|.
base::MessageLoopProxy::current()->PostTask(
FROM_HERE, base::Bind(reset_credentials_cb, true));
return true;
}
media_drm_bridge_->ResetDeviceCredentials(reset_credentials_cb);
return true;
}
// static
bool MediaDrmCredentialManager::RegisterMediaDrmCredentialManager(JNIEnv* env) {
return RegisterNativesImpl(env);
}
} // namespace content
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