Componentize component_updater: Move over a bunch of files to the component.

chrome/browser/component_updater/component_updater_configurator.cc

-// Copyright (c) 2012 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/component_updater/component_updater_configurator.h"
-
-#include <algorithm>
-#include <string>
-#include <vector>
-
-#include "base/command_line.h"
-#include "base/compiler_specific.h"
-#include "base/strings/string_util.h"
-#include "base/version.h"
-#include "build/build_config.h"
-#include "chrome/browser/component_updater/component_patcher_operation_out_of_process.h"
-#include "chrome/browser/omaha_query_params/chrome_omaha_query_params_delegate.h"
-#include "chrome/common/chrome_version_info.h"
-#include "components/component_updater/component_updater_switches.h"
-#include "content/public/browser/browser_thread.h"
-#include "net/url_request/url_request_context_getter.h"
-#include "url/gurl.h"
-
-namespace component_updater {
-
-namespace {
-
-// Default time constants.
-const int kDelayOneMinute = 60;
-const int kDelayOneHour = kDelayOneMinute * 60;
-
-// Debug values you can pass to --component-updater=value1,value2.
-// Speed up component checking.
-const char kSwitchFastUpdate[] = "fast-update";
-
-// Add "testrequest=1" attribute to the update check request.
-const char kSwitchRequestParam[] = "test-request";
-
-// Disables pings. Pings are the requests sent to the update server that report
-// the success or the failure of component install or update attempts.
-extern const char kSwitchDisablePings[] = "disable-pings";
-
-// Sets the URL for updates.
-const char kSwitchUrlSource[] = "url-source";
-
-#define COMPONENT_UPDATER_SERVICE_ENDPOINT \
-  "//clients2.google.com/service/update2"
-
-// The default url for the v3 protocol service endpoint. Can be
-// overridden with --component-updater=url-source=someurl.
-const char kDefaultUrlSource[] = "https:" COMPONENT_UPDATER_SERVICE_ENDPOINT;
-
-// The url to send the pings to.
-const char kPingUrl[] = "https:" COMPONENT_UPDATER_SERVICE_ENDPOINT;
-
-// Disables differential updates.
-const char kSwitchDisableDeltaUpdates[] = "disable-delta-updates";
-
-#if defined(OS_WIN)
-// Disables background downloads.
-const char kSwitchDisableBackgroundDownloads[] = "disable-background-downloads";
-#endif  // defined(OS_WIN)
-
-// Returns true if and only if |test| is contained in |vec|.
-bool HasSwitchValue(const std::vector<std::string>& vec, const char* test) {
-  if (vec.empty())
-    return 0;
-  return (std::find(vec.begin(), vec.end(), test) != vec.end());
-}
-
-// If there is an element of |vec| of the form |test|=.*, returns the right-
-// hand side of that assignment. Otherwise, returns an empty string.
-// The right-hand side may contain additional '=' characters, allowing for
-// further nesting of switch arguments.
-std::string GetSwitchArgument(const std::vector<std::string>& vec,
-                              const char* test) {
-  if (vec.empty())
-    return std::string();
-  for (std::vector<std::string>::const_iterator it = vec.begin();
-       it != vec.end();
-       ++it) {
-    const std::size_t found = it->find("=");
-    if (found != std::string::npos) {
-      if (it->substr(0, found) == test) {
-        return it->substr(found + 1);
-      }
-    }
-  }
-  return std::string();
-}
-
-}  // namespace
-
-class ChromeConfigurator : public Configurator {
- public:
-  ChromeConfigurator(const CommandLine* cmdline,
-                     net::URLRequestContextGetter* url_request_getter);
-
-  virtual ~ChromeConfigurator() {}
-
-  virtual int InitialDelay() const OVERRIDE;
-  virtual int NextCheckDelay() OVERRIDE;
-  virtual int StepDelay() const OVERRIDE;
-  virtual int StepDelayMedium() OVERRIDE;
-  virtual int MinimumReCheckWait() const OVERRIDE;
-  virtual int OnDemandDelay() const OVERRIDE;
-  virtual GURL UpdateUrl() const OVERRIDE;
-  virtual GURL PingUrl() const OVERRIDE;
-  virtual base::Version GetBrowserVersion() const OVERRIDE;
-  virtual std::string GetChannel() const OVERRIDE;
-  virtual std::string GetLang() const OVERRIDE;
-  virtual std::string GetOSLongName() const OVERRIDE;
-  virtual std::string ExtraRequestParams() const OVERRIDE;
-  virtual size_t UrlSizeLimit() const OVERRIDE;
-  virtual net::URLRequestContextGetter* RequestContext() const OVERRIDE;
-  virtual scoped_refptr<OutOfProcessPatcher> CreateOutOfProcessPatcher()
-      const OVERRIDE;
-  virtual bool DeltasEnabled() const OVERRIDE;
-  virtual bool UseBackgroundDownloader() const OVERRIDE;
-  virtual scoped_refptr<base::SequencedTaskRunner> GetSequencedTaskRunner()
-      const OVERRIDE;
-  virtual scoped_refptr<base::SingleThreadTaskRunner>
-      GetSingleThreadTaskRunner() const OVERRIDE;
-
- private:
-  net::URLRequestContextGetter* url_request_getter_;
-  std::string extra_info_;
-  std::string url_source_;
-  bool fast_update_;
-  bool pings_enabled_;
-  bool deltas_enabled_;
-  bool background_downloads_enabled_;
-};
-
-ChromeConfigurator::ChromeConfigurator(
-    const CommandLine* cmdline,
-    net::URLRequestContextGetter* url_request_getter)
-    : url_request_getter_(url_request_getter),
-      fast_update_(false),
-      pings_enabled_(false),
-      deltas_enabled_(false),
-      background_downloads_enabled_(false) {
-  // Parse comma-delimited debug flags.
-  std::vector<std::string> switch_values;
-  Tokenize(cmdline->GetSwitchValueASCII(switches::kComponentUpdater),
-           ",",
-           &switch_values);
-  fast_update_ = HasSwitchValue(switch_values, kSwitchFastUpdate);
-  pings_enabled_ = !HasSwitchValue(switch_values, kSwitchDisablePings);
-  deltas_enabled_ = !HasSwitchValue(switch_values, kSwitchDisableDeltaUpdates);
-
-#if defined(OS_WIN)
-  background_downloads_enabled_ =
-      !HasSwitchValue(switch_values, kSwitchDisableBackgroundDownloads);
-#else
-  background_downloads_enabled_ = false;
-#endif
-
-  url_source_ = GetSwitchArgument(switch_values, kSwitchUrlSource);
-  if (url_source_.empty()) {
-    url_source_ = kDefaultUrlSource;
-  }
-
-  if (HasSwitchValue(switch_values, kSwitchRequestParam))
-    extra_info_ += "testrequest=\"1\"";
-}
-
-int ChromeConfigurator::InitialDelay() const {
-  return fast_update_ ? 1 : (6 * kDelayOneMinute);
-}
-
-int ChromeConfigurator::NextCheckDelay() {
-  return fast_update_ ? 3 : (6 * kDelayOneHour);
-}
-
-int ChromeConfigurator::StepDelayMedium() {
-  return fast_update_ ? 3 : (15 * kDelayOneMinute);
-}
-
-int ChromeConfigurator::StepDelay() const {
-  return fast_update_ ? 1 : 1;
-}
-
-int ChromeConfigurator::MinimumReCheckWait() const {
-  return fast_update_ ? 30 : (6 * kDelayOneHour);
-}
-
-int ChromeConfigurator::OnDemandDelay() const {
-  return fast_update_ ? 2 : (30 * kDelayOneMinute);
-}
-
-GURL ChromeConfigurator::UpdateUrl() const {
-  return GURL(url_source_);
-}
-
-GURL ChromeConfigurator::PingUrl() const {
-  return pings_enabled_ ? GURL(kPingUrl) : GURL();
-}
-
-base::Version ChromeConfigurator::GetBrowserVersion() const {
-  return base::Version(chrome::VersionInfo().Version());
-}
-
-std::string ChromeConfigurator::GetChannel() const {
-  return ChromeOmahaQueryParamsDelegate::GetChannelString();
-}
-
-std::string ChromeConfigurator::GetLang() const {
-  return ChromeOmahaQueryParamsDelegate::GetLang();
-}
-
-std::string ChromeConfigurator::GetOSLongName() const {
-  return chrome::VersionInfo().OSType();
-}
-
-std::string ChromeConfigurator::ExtraRequestParams() const {
-  return extra_info_;
-}
-
-size_t ChromeConfigurator::UrlSizeLimit() const {
-  return 1024ul;
-}
-
-net::URLRequestContextGetter* ChromeConfigurator::RequestContext() const {
-  return url_request_getter_;
-}
-
-scoped_refptr<OutOfProcessPatcher>
-ChromeConfigurator::CreateOutOfProcessPatcher() const {
-  return make_scoped_refptr(new ChromeOutOfProcessPatcher);
-}
-
-bool ChromeConfigurator::DeltasEnabled() const {
-  return deltas_enabled_;
-}
-
-bool ChromeConfigurator::UseBackgroundDownloader() const {
-  return background_downloads_enabled_;
-}
-
-scoped_refptr<base::SequencedTaskRunner>
-ChromeConfigurator::GetSequencedTaskRunner() const {
-  return content::BrowserThread::GetBlockingPool()
-      ->GetSequencedTaskRunnerWithShutdownBehavior(
-          content::BrowserThread::GetBlockingPool()->GetSequenceToken(),
-          base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
-}
-
-scoped_refptr<base::SingleThreadTaskRunner>
-ChromeConfigurator::GetSingleThreadTaskRunner() const {
-  return content::BrowserThread::GetMessageLoopProxyForThread(
-      content::BrowserThread::FILE);
-}
-
-Configurator* MakeChromeComponentUpdaterConfigurator(
-    const base::CommandLine* cmdline,
-    net::URLRequestContextGetter* context_getter) {
-  return new ChromeConfigurator(cmdline, context_getter);
-}
-
-}  // namespace component_updater