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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/webcontentdecryptionmodulesession_impl.h"
#include "base/callback_helpers.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 "third_party/WebKit/public/platform/WebURL.h"
namespace content {
WebContentDecryptionModuleSessionImpl::WebContentDecryptionModuleSessionImpl(
uint32 session_id,
Client* client,
const scoped_refptr<CdmSessionAdapter>& adapter)
: adapter_(adapter),
client_(client),
session_id_(session_id) {
}
WebContentDecryptionModuleSessionImpl::
~WebContentDecryptionModuleSessionImpl() {
adapter_->RemoveSession(session_id_);
}
blink::WebString WebContentDecryptionModuleSessionImpl::sessionId() const {
return web_session_id_;
}
void WebContentDecryptionModuleSessionImpl::initializeNewSession(
const blink::WebString& mime_type,
const uint8* init_data, size_t init_data_length) {
// TODO(ddorwin): Guard against this in supported types check and remove this.
// Chromium only supports ASCII MIME types.
if (!IsStringASCII(mime_type)) {
NOTREACHED();
OnSessionError(media::MediaKeys::kUnknownError, 0);
return;
}
adapter_->InitializeNewSession(
session_id_, base::UTF16ToASCII(mime_type), init_data, init_data_length);
}
void WebContentDecryptionModuleSessionImpl::update(const uint8* response,
size_t response_length) {
DCHECK(response);
adapter_->UpdateSession(session_id_, response, response_length);
}
void WebContentDecryptionModuleSessionImpl::release() {
adapter_->ReleaseSession(session_id_);
}
void WebContentDecryptionModuleSessionImpl::OnSessionCreated(
const std::string& web_session_id) {
// Due to heartbeat messages, OnSessionCreated() can get called multiple
// times.
// TODO(jrummell): Once all CDMs are updated to support reference ids,
// OnSessionCreated() should only be called once, and the second check can be
// removed.
blink::WebString id = blink::WebString::fromUTF8(web_session_id);
DCHECK(web_session_id_.isEmpty() || web_session_id_ == id)
<< "Session ID may not be changed once set.";
web_session_id_ = id;
}
void WebContentDecryptionModuleSessionImpl::OnSessionMessage(
const std::vector<uint8>& message,
const std::string& destination_url) {
client_->message(message.empty() ? NULL : &message[0],
message.size(),
GURL(destination_url));
}
void WebContentDecryptionModuleSessionImpl::OnSessionReady() {
client_->ready();
}
void WebContentDecryptionModuleSessionImpl::OnSessionClosed() {
client_->close();
}
void WebContentDecryptionModuleSessionImpl::OnSessionError(
media::MediaKeys::KeyError error_code,
uint32 system_code) {
client_->error(static_cast<Client::MediaKeyErrorCode>(error_code),
system_code);
}
} // namespace content
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