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

chrome/browser/component_updater/component_updater_utils.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/component_updater/component_updater_utils.h"
-
-#include <cmath>
-
-#include "base/file_util.h"
-#include "base/files/file_path.h"
-#include "base/guid.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_piece.h"
-#include "base/strings/string_util.h"
-#include "base/strings/stringprintf.h"
-#include "base/sys_info.h"
-#include "base/win/windows_version.h"
-#include "chrome/browser/component_updater/component_updater_configurator.h"
-#include "chrome/browser/component_updater/crx_update_item.h"
-#include "components/omaha_query_params/omaha_query_params.h"
-#include "net/base/load_flags.h"
-#include "net/url_request/url_fetcher.h"
-#include "net/url_request/url_request_context_getter.h"
-#include "net/url_request/url_request_status.h"
-
-using omaha_query_params::OmahaQueryParams;
-
-namespace component_updater {
-
-namespace {
-
-// Returns the amount of physical memory in GB, rounded to the nearest GB.
-int GetPhysicalMemoryGB() {
-  const double kOneGB = 1024 * 1024 * 1024;
-  const int64 phys_mem = base::SysInfo::AmountOfPhysicalMemory();
-  return static_cast<int>(std::floor(0.5 + phys_mem / kOneGB));
-}
-
-}  // namespace
-
-std::string BuildProtocolRequest(const std::string& browser_version,
-                                 const std::string& channel,
-                                 const std::string& lang,
-                                 const std::string& os_long_name,
-                                 const std::string& request_body,
-                                 const std::string& additional_attributes) {
-  const std::string prod_id(
-      OmahaQueryParams::GetProdIdString(OmahaQueryParams::CHROME));
-
-  std::string request(
-      "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
-      "<request protocol=\"3.0\" ");
-
-  if (!additional_attributes.empty())
-    base::StringAppendF(&request, "%s ", additional_attributes.c_str());
-
-  // Chrome version and platform information.
-  base::StringAppendF(
-      &request,
-      "version=\"%s-%s\" prodversion=\"%s\" "
-      "requestid=\"{%s}\" lang=\"%s\" updaterchannel=\"%s\" prodchannel=\"%s\" "
-      "os=\"%s\" arch=\"%s\" nacl_arch=\"%s\"",
-      prod_id.c_str(),
-      browser_version.c_str(),           // "version"
-      browser_version.c_str(),           // "prodversion"
-      base::GenerateGUID().c_str(),      // "requestid"
-      lang.c_str(),                      // "lang",
-      channel.c_str(),                   // "updaterchannel"
-      channel.c_str(),                   // "prodchannel"
-      OmahaQueryParams::GetOS(),         // "os"
-      OmahaQueryParams::GetArch(),       // "arch"
-      OmahaQueryParams::GetNaclArch());  // "nacl_arch"
-#if defined(OS_WIN)
-  const bool is_wow64(base::win::OSInfo::GetInstance()->wow64_status() ==
-                      base::win::OSInfo::WOW64_ENABLED);
-  if (is_wow64)
-    base::StringAppendF(&request, " wow64=\"1\"");
-#endif
-  base::StringAppendF(&request, ">");
-
-  // HW platform information.
-  base::StringAppendF(&request,
-                      "<hw physmemory=\"%d\"/>",
-                      GetPhysicalMemoryGB());  // "physmem" in GB.
-
-  // OS version and platform information.
-  base::StringAppendF(
-      &request,
-      "<os platform=\"%s\" version=\"%s\" arch=\"%s\"/>",
-      os_long_name.c_str(),                                    // "platform"
-      base::SysInfo().OperatingSystemVersion().c_str(),        // "version"
-      base::SysInfo().OperatingSystemArchitecture().c_str());  // "arch"
-
-  // The actual payload of the request.
-  base::StringAppendF(&request, "%s</request>", request_body.c_str());
-
-  return request;
-}
-
-net::URLFetcher* SendProtocolRequest(
-    const GURL& url,
-    const std::string& protocol_request,
-    net::URLFetcherDelegate* url_fetcher_delegate,
-    net::URLRequestContextGetter* url_request_context_getter) {
-  net::URLFetcher* url_fetcher(net::URLFetcher::Create(
-      0, url, net::URLFetcher::POST, url_fetcher_delegate));
-
-  url_fetcher->SetUploadData("application/xml", protocol_request);
-  url_fetcher->SetRequestContext(url_request_context_getter);
-  url_fetcher->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
-                            net::LOAD_DO_NOT_SAVE_COOKIES |
-                            net::LOAD_DISABLE_CACHE);
-  url_fetcher->SetAutomaticallyRetryOn5xx(false);
-  url_fetcher->Start();
-
-  return url_fetcher;
-}
-
-bool FetchSuccess(const net::URLFetcher& fetcher) {
-  return GetFetchError(fetcher) == 0;
-}
-
-int GetFetchError(const net::URLFetcher& fetcher) {
-  const net::URLRequestStatus::Status status(fetcher.GetStatus().status());
-  switch (status) {
-    case net::URLRequestStatus::IO_PENDING:
-    case net::URLRequestStatus::CANCELED:
-      // Network status is a small positive number.
-      return status;
-
-    case net::URLRequestStatus::SUCCESS: {
-      // Response codes are positive numbers, greater than 100.
-      const int response_code(fetcher.GetResponseCode());
-      if (response_code == 200)
-        return 0;
-      else
-        return response_code ? response_code : -1;
-    }
-
-    case net::URLRequestStatus::FAILED: {
-      // Network errors are small negative numbers.
-      const int error = fetcher.GetStatus().error();
-      return error ? error : -1;
-    }
-
-    default:
-      return -1;
-  }
-}
-
-bool HasDiffUpdate(const CrxUpdateItem* update_item) {
-  return !update_item->crx_diffurls.empty();
-}
-
-bool IsHttpServerError(int status_code) {
-  return 500 <= status_code && status_code < 600;
-}
-
-bool DeleteFileAndEmptyParentDirectory(const base::FilePath& filepath) {
-  if (!base::DeleteFile(filepath, false))
-    return false;
-
-  const base::FilePath dirname(filepath.DirName());
-  if (!base::IsDirectoryEmpty(dirname))
-    return true;
-
-  return base::DeleteFile(dirname, false);
-}
-
-// Produces an extension-like friendly id.
-std::string HexStringToID(const std::string& hexstr) {
-  std::string id;
-  for (size_t i = 0; i < hexstr.size(); ++i) {
-    int val = 0;
-    if (base::HexStringToInt(
-            base::StringPiece(hexstr.begin() + i, hexstr.begin() + i + 1),
-            &val)) {
-      id.append(1, val + 'a');
-    } else {
-      id.append(1, 'a');
-    }
-  }
-
-  // TODO(tommycli): Add back the DCHECK validating the generated id. This
-  // requires moving the extension id_util functions into components/crx_file.
-
-  return id;
-}
-
-std::string GetCrxComponentID(const CrxComponent& component) {
-  return HexStringToID(base::StringToLowerASCII(
-      base::HexEncode(&component.pk_hash[0], component.pk_hash.size() / 2)));
-}
-
-}  // namespace component_updater