| // Copyright 2016 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/browser_watcher/postmortem_report_collector.h" |
| |
| #include <utility> |
| |
| #include "base/debug/activity_analyzer.h" |
| #include "base/files/file_enumerator.h" |
| #include "base/files/file_util.h" |
| #include "base/logging.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "base/path_service.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "components/browser_watcher/postmortem_minidump_writer.h" |
| #include "third_party/crashpad/crashpad/client/settings.h" |
| #include "third_party/crashpad/crashpad/util/misc/uuid.h" |
| |
| using base::FilePath; |
| |
| namespace browser_watcher { |
| |
| using base::debug::GlobalActivityAnalyzer; |
| using base::debug::ThreadActivityAnalyzer; |
| using crashpad::CrashReportDatabase; |
| |
| PostmortemReportCollector::PostmortemReportCollector( |
| const std::string& product_name, |
| const std::string& version_number, |
| const std::string& channel_name) |
| : product_name_(product_name), |
| version_number_(version_number), |
| channel_name_(channel_name) {} |
| |
| int PostmortemReportCollector::CollectAndSubmitForUpload( |
| const base::FilePath& debug_info_dir, |
| const base::FilePath::StringType& debug_file_pattern, |
| const std::set<base::FilePath>& excluded_debug_files, |
| crashpad::CrashReportDatabase* report_database) { |
| DCHECK_NE(true, debug_info_dir.empty()); |
| DCHECK_NE(true, debug_file_pattern.empty()); |
| DCHECK_NE(nullptr, report_database); |
| |
| // Collect the list of files to harvest. |
| std::vector<FilePath> debug_files = GetDebugStateFilePaths( |
| debug_info_dir, debug_file_pattern, excluded_debug_files); |
| |
| // Determine the crashpad client id. |
| crashpad::UUID client_id; |
| crashpad::Settings* settings = report_database->GetSettings(); |
| if (settings) { |
| // If GetSettings() or GetClientID() fails client_id will be left at its |
| // default value, all zeroes, which is appropriate. |
| settings->GetClientID(&client_id); |
| } |
| |
| // Process each stability file. |
| int success_cnt = 0; |
| for (const FilePath& file : debug_files) { |
| CollectionStatus status = |
| CollectAndSubmit(client_id, file, report_database); |
| // TODO(manzagop): consider making this a stability metric. |
| UMA_HISTOGRAM_ENUMERATION("ActivityTracker.Collect.Status", status, |
| COLLECTION_STATUS_MAX); |
| if (status == SUCCESS) |
| ++success_cnt; |
| } |
| |
| return success_cnt; |
| } |
| |
| std::vector<FilePath> PostmortemReportCollector::GetDebugStateFilePaths( |
| const base::FilePath& debug_info_dir, |
| const base::FilePath::StringType& debug_file_pattern, |
| const std::set<FilePath>& excluded_debug_files) { |
| DCHECK_NE(true, debug_info_dir.empty()); |
| DCHECK_NE(true, debug_file_pattern.empty()); |
| |
| std::vector<FilePath> paths; |
| base::FileEnumerator enumerator(debug_info_dir, false /* recursive */, |
| base::FileEnumerator::FILES, |
| debug_file_pattern); |
| FilePath path; |
| for (path = enumerator.Next(); !path.empty(); path = enumerator.Next()) { |
| if (excluded_debug_files.find(path) == excluded_debug_files.end()) |
| paths.push_back(path); |
| } |
| return paths; |
| } |
| |
| PostmortemReportCollector::CollectionStatus |
| PostmortemReportCollector::CollectAndSubmit( |
| const crashpad::UUID& client_id, |
| const FilePath& file, |
| crashpad::CrashReportDatabase* report_database) { |
| DCHECK_NE(nullptr, report_database); |
| |
| // Note: the code below involves two notions of report: chrome internal state |
| // reports and the crashpad reports they get wrapped into. |
| |
| // Collect the data from the debug file to a proto. |
| std::unique_ptr<StabilityReport> report_proto; |
| CollectionStatus status = Collect(file, &report_proto); |
| if (status != SUCCESS) { |
| // The file was empty, or there was an error collecting the data. Detailed |
| // logging happens within the Collect function. |
| if (!base::DeleteFile(file, false)) |
| LOG(ERROR) << "Failed to delete " << file.value(); |
| return status; |
| } |
| DCHECK_NE(nullptr, report_proto.get()); |
| |
| // Prepare a crashpad report. |
| CrashReportDatabase::NewReport* new_report = nullptr; |
| CrashReportDatabase::OperationStatus database_status = |
| report_database->PrepareNewCrashReport(&new_report); |
| if (database_status != CrashReportDatabase::kNoError) { |
| LOG(ERROR) << "PrepareNewCrashReport failed"; |
| return PREPARE_NEW_CRASH_REPORT_FAILED; |
| } |
| CrashReportDatabase::CallErrorWritingCrashReport |
| call_error_writing_crash_report(report_database, new_report); |
| |
| // Write the report to a minidump. |
| if (!WriteReportToMinidump(*report_proto, client_id, new_report->uuid, |
| reinterpret_cast<FILE*>(new_report->handle))) { |
| return WRITE_TO_MINIDUMP_FAILED; |
| } |
| |
| // If the file cannot be deleted, do not report its contents. Note this can |
| // lead to under reporting and retries. However, under reporting is |
| // preferable to the over reporting that would happen with a file that |
| // cannot be deleted. |
| // TODO(manzagop): metrics for the number of non-deletable files. |
| if (!base::DeleteFile(file, false)) { |
| LOG(ERROR) << "Failed to delete " << file.value(); |
| return DEBUG_FILE_DELETION_FAILED; |
| } |
| |
| // Finalize the report wrt the report database. Note that this doesn't trigger |
| // an immediate upload, but Crashpad will eventually upload the report (as of |
| // writing, the delay is on the order of up to 15 minutes). |
| call_error_writing_crash_report.Disarm(); |
| crashpad::UUID unused_report_id; |
| database_status = report_database->FinishedWritingCrashReport( |
| new_report, &unused_report_id); |
| if (database_status != CrashReportDatabase::kNoError) { |
| LOG(ERROR) << "FinishedWritingCrashReport failed"; |
| return FINISHED_WRITING_CRASH_REPORT_FAILED; |
| } |
| |
| return SUCCESS; |
| } |
| |
| PostmortemReportCollector::CollectionStatus PostmortemReportCollector::Collect( |
| const base::FilePath& debug_state_file, |
| std::unique_ptr<StabilityReport>* report) { |
| DCHECK_NE(nullptr, report); |
| report->reset(); |
| |
| // Create a global analyzer. |
| std::unique_ptr<GlobalActivityAnalyzer> global_analyzer = |
| GlobalActivityAnalyzer::CreateWithFile(debug_state_file); |
| if (!global_analyzer) |
| return ANALYZER_CREATION_FAILED; |
| |
| // Early exit if there is no data. |
| ThreadActivityAnalyzer* thread_analyzer = global_analyzer->GetFirstAnalyzer(); |
| if (!thread_analyzer) { |
| // No data. This case happens in the case of a clean exit. |
| return DEBUG_FILE_NO_DATA; |
| } |
| |
| // Iterate through the thread analyzers, fleshing out the report. |
| report->reset(new StabilityReport()); |
| ProcessState* process_state = (*report)->add_process_states(); |
| |
| for (; thread_analyzer != nullptr; |
| thread_analyzer = global_analyzer->GetNextAnalyzer()) { |
| // Only valid analyzers are expected per contract of GetFirstAnalyzer / |
| // GetNextAnalyzer. |
| DCHECK(thread_analyzer->IsValid()); |
| |
| ThreadState* thread_state = process_state->add_threads(); |
| thread_state->set_thread_name(thread_analyzer->GetThreadName()); |
| // TODO(manzagop): flesh this out. |
| } |
| |
| return SUCCESS; |
| } |
| |
| bool PostmortemReportCollector::WriteReportToMinidump( |
| const StabilityReport& report, |
| const crashpad::UUID& client_id, |
| const crashpad::UUID& report_id, |
| base::PlatformFile minidump_file) { |
| MinidumpInfo minidump_info; |
| minidump_info.client_id = client_id; |
| minidump_info.report_id = report_id; |
| // TODO(manzagop): replace this information, i.e. the reporter's attributes, |
| // by that of the reportee. Doing so requires adding this information to the |
| // stability report. In the meantime, there is a tolerable information |
| // mismatch after upgrades. |
| minidump_info.product_name = product_name(); |
| minidump_info.version_number = version_number(); |
| minidump_info.channel_name = channel_name(); |
| #if defined(ARCH_CPU_X86) |
| minidump_info.platform = std::string("Win32"); |
| #elif defined(ARCH_CPU_X86_64) |
| minidump_info.platform = std::string("Win64"); |
| #endif |
| |
| return WritePostmortemDump(minidump_file, report, minidump_info); |
| } |
| |
| } // namespace browser_watcher |