Extensions: Move cast_channel and hid APIs to extensions/.

chrome/browser/extensions/api/cast_channel/cast_message_util.cc

-// 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 "chrome/browser/extensions/api/cast_channel/cast_message_util.h"
-
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/values.h"
-#include "chrome/browser/extensions/api/cast_channel/cast_channel.pb.h"
-#include "chrome/common/extensions/api/cast_channel.h"
-
-namespace {
-static const char kAuthNamespace[] =
-    "urn:x-cast:com.google.cast.tp.deviceauth";
-// Sender and receiver IDs to use for platform messages.
-static const char kPlatformSenderId[] = "sender-0";
-static const char kPlatformReceiverId[] = "receiver-0";
-}  // namespace
-
-namespace extensions {
-namespace api {
-namespace cast_channel {
-
-bool MessageInfoToCastMessage(const MessageInfo& message,
-                              CastMessage* message_proto) {
-  DCHECK(message_proto);
-  if (!message.data)
-    return false;
-
-  message_proto->set_protocol_version(CastMessage_ProtocolVersion_CASTV2_1_0);
-  message_proto->set_source_id(message.source_id);
-  message_proto->set_destination_id(message.destination_id);
-  message_proto->set_namespace_(message.namespace_);
-  // Determine the type of the base::Value and set the message payload
-  // appropriately.
-  std::string data;
-  base::BinaryValue* real_value;
-  switch (message.data->GetType()) {
-    // JS string
-    case base::Value::TYPE_STRING:
-      if (message.data->GetAsString(&data)) {
-        message_proto->set_payload_type(CastMessage_PayloadType_STRING);
-        message_proto->set_payload_utf8(data);
-      }
-      break;
-    // JS ArrayBuffer
-    case base::Value::TYPE_BINARY:
-      real_value = static_cast<base::BinaryValue*>(message.data.get());
-      if (real_value->GetBuffer()) {
-        message_proto->set_payload_type(CastMessage_PayloadType_BINARY);
-        message_proto->set_payload_binary(real_value->GetBuffer(),
-                                          real_value->GetSize());
-      }
-      break;
-    default:
-      // Unknown value type.  message_proto will remain uninitialized because
-      // payload_type is unset.
-      break;
-  }
-  return message_proto->IsInitialized();
-}
-
-bool CastMessageToMessageInfo(const CastMessage& message_proto,
-                              MessageInfo* message) {
-  DCHECK(message);
-  message->source_id = message_proto.source_id();
-  message->destination_id = message_proto.destination_id();
-  message->namespace_ = message_proto.namespace_();
-  // Determine the type of the payload and fill base::Value appropriately.
-  scoped_ptr<base::Value> value;
-  switch (message_proto.payload_type()) {
-  case CastMessage_PayloadType_STRING:
-    if (message_proto.has_payload_utf8())
-      value.reset(new base::StringValue(message_proto.payload_utf8()));
-    break;
-  case CastMessage_PayloadType_BINARY:
-    if (message_proto.has_payload_binary())
-      value.reset(base::BinaryValue::CreateWithCopiedBuffer(
-        message_proto.payload_binary().data(),
-        message_proto.payload_binary().size()));
-    break;
-  default:
-    // Unknown payload type. value will remain unset.
-    break;
-  }
-  if (value.get()) {
-    DCHECK(!message->data.get());
-    message->data.reset(value.release());
-    return true;
-  } else {
-    return false;
-  }
-}
-
-std::string CastMessageToString(const CastMessage& message_proto) {
-  std::string out("{");
-  out += "namespace = " + message_proto.namespace_();
-  out += ", sourceId = " + message_proto.source_id();
-  out += ", destId = " + message_proto.destination_id();
-  out += ", type = " + base::IntToString(message_proto.payload_type());
-  out += ", str = \"" + message_proto.payload_utf8() + "\"}";
-  return out;
-}
-
-std::string AuthMessageToString(const DeviceAuthMessage& message) {
-  std::string out("{");
-  if (message.has_challenge()) {
-    out += "challenge: {}, ";
-  }
-  if (message.has_response()) {
-    out += "response: {signature: (";
-    out += base::UintToString(message.response().signature().length());
-    out += " bytes), certificate: (";
-    out += base::UintToString(
-        message.response().client_auth_certificate().length());
-    out += " bytes)}";
-  }
-  if (message.has_error()) {
-    out += ", error: {";
-    out += base::IntToString(message.error().error_type());
-    out += "}";
-  }
-  out += "}";
-  return out;
-}
-
-void CreateAuthChallengeMessage(CastMessage* message_proto) {
-  CHECK(message_proto);
-  DeviceAuthMessage auth_message;
-  auth_message.mutable_challenge();
-  std::string auth_message_string;
-  auth_message.SerializeToString(&auth_message_string);
-
-  message_proto->set_protocol_version(CastMessage_ProtocolVersion_CASTV2_1_0);
-  message_proto->set_source_id(kPlatformSenderId);
-  message_proto->set_destination_id(kPlatformReceiverId);
-  message_proto->set_namespace_(kAuthNamespace);
-  message_proto->set_payload_type(CastMessage_PayloadType_BINARY);
-  message_proto->set_payload_binary(auth_message_string);
-}
-
-bool IsAuthMessage(const CastMessage& message) {
-  return message.namespace_() == kAuthNamespace;
-}
-
-}  // namespace cast_channel
-}  // namespace api
-}  // namespace extensions