chrome/common/sync_util.cc

// Copyright 2015 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/common/sync_util.h"

#include "base/command_line.h"
#include "base/logging.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/chrome_version_info.h"
#include "url/gurl.h"

namespace {

// Converts VersionInfo::Channel to string for user-agent string.
std::string ChannelToString(chrome::VersionInfo::Channel channel) {
  switch (channel) {
    case chrome::VersionInfo::CHANNEL_UNKNOWN:
      return "unknown";
    case chrome::VersionInfo::CHANNEL_CANARY:
      return "canary";
    case chrome::VersionInfo::CHANNEL_DEV:
      return "dev";
    case chrome::VersionInfo::CHANNEL_BETA:
      return "beta";
    case chrome::VersionInfo::CHANNEL_STABLE:
      return "stable";
    default:
      NOTREACHED();
      return "unknown";
  }
}
}  // namespace

namespace internal {
const char* kSyncServerUrl = "https://clients4.google.com/chrome-sync";

const char* kSyncDevServerUrl = "https://clients4.google.com/chrome-sync/dev";
}  // namespace internal

GURL GetSyncServiceURL(const base::CommandLine& command_line) {
  // By default, dev, canary, and unbranded Chromium users will go to the
  // development servers. Development servers have more features than standard
  // sync servers. Users with officially-branded Chrome stable and beta builds
  // will go to the standard sync servers.
  GURL result(internal::kSyncDevServerUrl);

  chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
  if (channel == chrome::VersionInfo::CHANNEL_STABLE ||
      channel == chrome::VersionInfo::CHANNEL_BETA) {
    result = GURL(internal::kSyncServerUrl);
  }

  // Override the sync server URL from the command-line, if sync server
  // command-line argument exists.
  if (command_line.HasSwitch(switches::kSyncServiceURL)) {
    std::string value(
        command_line.GetSwitchValueASCII(switches::kSyncServiceURL));
    if (!value.empty()) {
      GURL custom_sync_url(value);
      if (custom_sync_url.is_valid()) {
        result = custom_sync_url;
      } else {
        LOG(WARNING) << "The following sync URL specified at the command-line "
                     << "is invalid: " << value;
      }
    }
  }
  return result;
}

std::string MakeDesktopUserAgentForSync(
    const chrome::VersionInfo& version_info) {
  std::string system = "";
#if defined(OS_WIN)
  system = "WIN ";
#elif defined(OS_LINUX)
  system = "LINUX ";
#elif defined(OS_FREEBSD)
  system = "FREEBSD ";
#elif defined(OS_OPENBSD)
  system = "OPENBSD ";
#elif defined(OS_MACOSX)
  system = "MAC ";
#endif
  return MakeUserAgentForSync(version_info, system);
}

std::string MakeUserAgentForSync(const chrome::VersionInfo& version_info,
                                 const std::string& system) {
  std::string user_agent;
  user_agent = "Chrome ";
  user_agent += system;
  user_agent += version_info.Version();
  user_agent += " (" + version_info.LastChange() + ")";
  if (!version_info.IsOfficialBuild()) {
    user_agent += "-devel";
  } else {
    user_agent +=
        " channel(" + ChannelToString(version_info.GetChannel()) + ")";
  }
  return user_agent;
}