| // Copyright 2014 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 "components/component_updater/component_updater_utils.h" |
| |
| #include <stdint.h> |
| #include <cmath> |
| |
| #include "base/files/file_path.h" |
| #include "base/files/file_util.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 "components/component_updater/component_updater_configurator.h" |
| #include "components/component_updater/crx_update_item.h" |
| #include "components/crx_file/id_util.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_t 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'); |
| } |
| } |
| |
| DCHECK(crx_file::id_util::IdIsValid(id)); |
| |
| 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 |