Add crashpad_database_util and its man page

tools/crashpad_database_util.cc

+// Copyright 2015 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <errno.h>
+#include <getopt.h>
+#include <libgen.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <time.h>
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include "base/files/file_path.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/numerics/safe_conversions.h"
+#include "client/crash_report_database.h"
+#include "client/settings.h"
+#include "tools/tool_support.h"
+#include "util/misc/uuid.h"
+
+namespace crashpad {
+namespace {
+
+void Usage(const std::string& me) {
+  fprintf(stderr,
+"Usage: %s [OPTION]... PID\n"
+"Operate on Crashpad crash report databases.\n"
+"\n"
+"  -d, --database=PATH             operate on the crash report database at PATH\n"
+"      --show-client-id            show the client ID\n"
+"      --show-uploads-enabled      show whether uploads are enabled\n"
+"      --show-last-upload-attempt-time\n"
+"                                  show the last-upload-attempt time\n"
+"      --show-pending-reports      show reports eligible for upload\n"
+"      --show-completed-reports    show reports not eligible for upload\n"
+"      --show-all-report-info      with --show-*-reports, show more information\n"
+"      --show-report=UUID          show report stored under UUID\n"
+"      --set-uploads-enabled=BOOL  enable or disable uploads\n"
+"      --set-last-upload-attempt-time=TIME\n"
+"                                  set the last-upload-attempt time to TIME\n"
+"      --utc                       show and set UTC times instead of local\n"
+"      --help                      display this help and exit\n"
+"      --version                   output version information and exit\n",
+          me.c_str());
+  ToolSupport::UsageTail(me);
+}
+
+struct Options {
+  std::vector<UUID> show_reports;
+  const char* database;
+  const char* set_last_upload_attempt_time_string;
+  time_t set_last_upload_attempt_time;
+  bool show_client_id;
+  bool show_uploads_enabled;
+  bool show_last_upload_attempt_time;
+  bool show_pending_reports;
+  bool show_completed_reports;
+  bool show_all_report_info;
+  bool set_uploads_enabled;
+  bool has_set_uploads_enabled;
+  bool utc;
+};
+
+// Converts |string| to |boolean|, returning true if a conversion could be
+// performed, and false without setting |boolean| if no conversion could be
+// performed. Various string representations of a boolean are recognized
+// case-insensitively.
+bool StringToBool(const char* string, bool* boolean) {
+  const char* const kFalseWords[] = {
+      "0",
+      "false",
+      "no",
+      "off",
+      "disabled",
+      "clear",
+  };
+  const char* const kTrueWords[] = {
+      "1",
+      "true",
+      "yes",
+      "on",
+      "enabled",
+      "set",
+  };
+
+  for (size_t index = 0; index < arraysize(kFalseWords); ++index) {
+    if (strcasecmp(string, kFalseWords[index]) == 0) {
+      *boolean = false;
+      return true;
+    }
+  }
+
+  for (size_t index = 0; index < arraysize(kTrueWords); ++index) {
+    if (strcasecmp(string, kTrueWords[index]) == 0) {
+      *boolean = true;
+      return true;
+    }
+  }
+
+  return false;
+}
+
+// Converts |boolean| to a string, either "true" or "false".
+std::string BoolToString(bool boolean) {
+  return std::string(boolean ? "true" : "false");
+}
+
+// Converts |string| to |time|, returning true if a conversion could be
+// performed, and false without setting |boolean| if no conversion could be
+// performed. Various time formats are recognized, including several string
+// representations and a numeric time_t representation. The special string
+// "never" is recognized as |string| and converts to a |time| value of 0. |utc|,
+// when true, causes |string| to be interpreted as a UTC time rather than a
+// local time when the time zone is ambiguous.
+bool StringToTime(const char* string, time_t* time, bool utc) {
+  if (strcasecmp(string, "never") == 0) {
+    *time = 0;
+    return true;
+  }
+
+  const char* end = string + strlen(string);
+
+  const char* const kFormats[] = {
+      "%Y-%m-%d %H:%M:%S %Z",
+      "%Y-%m-%d %H:%M:%S",
+      "%+",
+  };
+
+  for (size_t index = 0; index < arraysize(kFormats); ++index) {
+    tm time_tm;
+    const char* strptime_result = strptime(string, kFormats[index], &time_tm);
+    if (strptime_result == end) {
+      if (utc) {
+        *time = timegm(&time_tm);
+      } else {
+        *time = timelocal(&time_tm);
+      }
+
+      return true;
+    }
+  }
+
+  char* end_result;
+  errno = 0;
+  long long strtoll_result = strtoll(string, &end_result, 0);
+  if (end_result == end && errno == 0 &&
+      base::IsValueInRangeForNumericType<time_t>(strtoll_result)) {
+    *time = strtoll_result;
+    return true;
+  }
+
+  return false;
+}
+
+// Converst |time_tt| to a string, and returns it. |utc| determines whether the
+// converted time will reference local time or UTC. If |time_tt| is 0, the
+// string "never" will be returned as a special case.
+std::string TimeToString(time_t time_tt, bool utc) {
+  if (time_tt == 0) {
+    return std::string("never");
+  }
+
+  tm time_tm;
+  if (utc) {
+    gmtime_r(&time_tt, &time_tm);
+  } else {
+    localtime_r(&time_tt, &time_tm);
+  }
+
+  char string[64];
+  CHECK_NE(
+      strftime(string, arraysize(string), "%Y-%m-%d %H:%M:%S %Z", &time_tm),
+      0u);
+
+  return std::string(string);
+}
+
+// Shows information about a single |report|. |space_count| is the number of
+// spaces to print before each line that is printed. |utc| determines whether
+// times should be shown in UTC or the local time zone.
+void ShowReport(const CrashReportDatabase::Report& report,
+                size_t space_count,
+                bool utc) {
+  std::string spaces(space_count, ' ');
+
+  printf("%sPath: %s\n", spaces.c_str(), report.file_path.value().c_str());
+  if (!report.id.empty()) {
+    printf("%sRemote ID: %s\n", spaces.c_str(), report.id.c_str());
+  }
+  printf("%sCreation time: %s\n",
+         spaces.c_str(),
+         TimeToString(report.creation_time, utc).c_str());
+  printf("%sUploaded: %s\n",
+         spaces.c_str(),
+         BoolToString(report.uploaded).c_str());
+  printf("%sLast upload attempt time: %s\n",
+         spaces.c_str(),
+         TimeToString(report.last_upload_attempt_time, utc).c_str());
+  printf("%sUpload attempts: %d\n", spaces.c_str(), report.upload_attempts);
+}
+
+// Shows information about a vector of |reports|. |space_count| is the number of
+// spaces to print before each line that is printed. |options| will be consulted
+// to determine whether to show expanded information
+// (options.show_all_report_info) and what time zone to use when showing
+// expanded information (options.utc).
+void ShowReports(const std::vector<CrashReportDatabase::Report>& reports,
+                 size_t space_count,
+                 const Options& options) {
+  std::string spaces(space_count, ' ');
+  const char* colon = options.show_all_report_info ? ":" : "";
+
+  for (const CrashReportDatabase::Report& report : reports) {
+    printf("%s%s%s\n", spaces.c_str(), report.uuid.ToString().c_str(), colon);
+    if (options.show_all_report_info) {
+      ShowReport(report, space_count + 2, options.utc);
+    }
+  }
+}
+
+int DatabaseUtilMain(int argc, char* argv[]) {
+  const std::string me(basename(argv[0]));
+
+  enum OptionFlags {
+    // “Short” (single-character) options.
+    kOptionDatabase = 'd',
+
+    // Long options without short equivalents.
+    kOptionLastChar = 255,
+    kOptionShowClientID,
+    kOptionShowUploadsEnabled,
+    kOptionShowLastUploadAttemptTime,
+    kOptionShowPendingReports,
+    kOptionShowCompletedReports,
+    kOptionShowAllReportInfo,
+    kOptionShowReport,
+    kOptionSetUploadsEnabled,
+    kOptionSetLastUploadAttemptTime,
+    kOptionUTC,
+
+    // Standard options.
+    kOptionHelp = -2,
+    kOptionVersion = -3,
+  };
+
+  const option long_options[] = {
+      {"database", required_argument, nullptr, kOptionDatabase},
+      {"show-client-id", no_argument, nullptr, kOptionShowClientID},
+      {"show-uploads-enabled", no_argument, nullptr, kOptionShowUploadsEnabled},
+      {"show-last-upload-attempt-time",
+       no_argument,
+       nullptr,
+       kOptionShowLastUploadAttemptTime},
+      {"show-pending-reports", no_argument, nullptr, kOptionShowPendingReports},
+      {"show-completed-reports",
+       no_argument,
+       nullptr,
+       kOptionShowCompletedReports},
+      {"show-all-report-info", no_argument, nullptr, kOptionShowAllReportInfo},
+      {"show-report", required_argument, nullptr, kOptionShowReport},
+      {"set-uploads-enabled",
+       required_argument,
+       nullptr,
+       kOptionSetUploadsEnabled},
+      {"set-last-upload-attempt-time",
+       required_argument,
+       nullptr,
+       kOptionSetLastUploadAttemptTime},
+      {"utc", no_argument, nullptr, kOptionUTC},
+      {"help", no_argument, nullptr, kOptionHelp},
+      {"version", no_argument, nullptr, kOptionVersion},
+      {nullptr, 0, nullptr, 0},
+  };
+
+  Options options = {};
+
+  int opt;
+  while ((opt = getopt_long(argc, argv, "d:", long_options, nullptr)) != -1) {
+    switch (opt) {
+      case kOptionDatabase: {
+        options.database = optarg;
+        break;
+      }
+      case kOptionShowClientID: {
+        options.show_client_id = true;
+        break;
+      }
+      case kOptionShowUploadsEnabled: {
+        options.show_uploads_enabled = true;
+        break;
+      }
+      case kOptionShowLastUploadAttemptTime: {
+        options.show_last_upload_attempt_time = true;
+        break;
+      }
+      case kOptionShowPendingReports: {
+        options.show_pending_reports = true;
+        break;
+      }
+      case kOptionShowCompletedReports: {
+        options.show_completed_reports = true;
+        break;
+      }
+      case kOptionShowAllReportInfo: {
+        options.show_all_report_info = true;
+        break;
+      }
+      case kOptionShowReport: {
+        UUID uuid;
+        if (!uuid.InitializeFromString(optarg)) {
+          ToolSupport::UsageHint(me, "--show-report requires a UUID");
+          return EXIT_FAILURE;
+        }
+        options.show_reports.push_back(uuid);
+        break;
+      }
+      case kOptionSetUploadsEnabled: {
+        if (!StringToBool(optarg, &options.set_uploads_enabled)) {
+          ToolSupport::UsageHint(me, "--set-uploads-enabled requires a BOOL");
+          return EXIT_FAILURE;
+        }
+        options.has_set_uploads_enabled = true;
+        break;
+      }
+      case kOptionSetLastUploadAttemptTime: {
+        options.set_last_upload_attempt_time_string = optarg;
+        break;
+      }
+      case kOptionUTC: {
+        options.utc = true;
+        break;
+      }
+      case kOptionHelp: {
+        Usage(me);
+        return EXIT_SUCCESS;
+      }
+      case kOptionVersion: {
+        ToolSupport::Version(me);
+        return EXIT_SUCCESS;
+      }
+      default: {
+        ToolSupport::UsageHint(me, nullptr);
+        return EXIT_FAILURE;
+      }
+    }
+  }
+  argc -= optind;
+  argv += optind;
+
+  if (!options.database) {
+    ToolSupport::UsageHint(me, "--database is required");
+    return EXIT_FAILURE;
+  }
+
+  // This conversion couldn’t happen in the option-processing loop above because
+  // it depends on options.utc, which may have been set after
+  // options.set_last_upload_attempt_time_string.
+  if (options.set_last_upload_attempt_time_string) {
+    if (!StringToTime(options.set_last_upload_attempt_time_string,
+                      &options.set_last_upload_attempt_time,
+                      options.utc)) {
+      ToolSupport::UsageHint(me,
+                             "--set-last-upload-attempt-time requires a TIME");
+      return EXIT_FAILURE;
+    }
+  }
+
+  const size_t show_operations = options.show_client_id +
+                                 options.show_uploads_enabled +
+                                 options.show_last_upload_attempt_time +
+                                 options.show_pending_reports +
+                                 options.show_completed_reports +
+                                 options.show_reports.size();
+  const size_t set_operations =
+      options.has_set_uploads_enabled +
+      (options.set_last_upload_attempt_time_string != nullptr);
+
+  if (show_operations + set_operations == 0) {
+    ToolSupport::UsageHint(me, "nothing to do");
+    return EXIT_FAILURE;
+  }
+
+  scoped_ptr<CrashReportDatabase> database(
+      CrashReportDatabase::Initialize(base::FilePath(options.database)));
+  if (!database) {
+    return EXIT_FAILURE;
+  }
+
+  Settings* settings = database->GetSettings();
+
+  // Handle the “show” options before the “set” options so that when they’re
+  // specified together, the “show” option reflects the initial state.
+
+  if (options.show_client_id) {
+    UUID client_id;
+    if (!settings->GetClientID(&client_id)) {
+      return EXIT_FAILURE;
+    }
+
+    const char* prefix = (show_operations > 1) ? "Client ID: " : "";
+
+    printf("%s%s\n", prefix, client_id.ToString().c_str());
+  }
+
+  if (options.show_uploads_enabled) {
+    bool uploads_enabled;
+    if (!settings->GetUploadsEnabled(&uploads_enabled)) {
+      return EXIT_FAILURE;
+    }
+
+    const char* prefix = (show_operations > 1) ? "Uploads enabled: " : "";
+
+    printf("%s%s\n", prefix, BoolToString(uploads_enabled).c_str());
+  }
+
+  if (options.show_last_upload_attempt_time) {
+    time_t last_upload_attempt_time;
+    if (!settings->GetLastUploadAttemptTime(&last_upload_attempt_time)) {
+      return EXIT_FAILURE;
+    }
+
+    const char* prefix =
+        (show_operations > 1) ? "Last upload attempt time: " : "";
+
+    printf("%s%s (%ld)\n",
+           prefix,
+           TimeToString(last_upload_attempt_time, options.utc).c_str(),
+           implicit_cast<long>(last_upload_attempt_time));
+  }
+
+  if (options.show_pending_reports) {
+    std::vector<CrashReportDatabase::Report> pending_reports;
+    if (database->GetPendingReports(&pending_reports) !=
+        CrashReportDatabase::kNoError) {
+      return EXIT_FAILURE;
+    }
+
+    if (show_operations > 1) {
+      printf("Pending reports:\n");
+    }
+
+    ShowReports(pending_reports, show_operations > 1 ? 2 : 0, options);
+  }
+
+  if (options.show_completed_reports) {
+    std::vector<CrashReportDatabase::Report> completed_reports;
+    if (database->GetCompletedReports(&completed_reports) !=
+        CrashReportDatabase::kNoError) {
+      return EXIT_FAILURE;
+    }
+
+    if (show_operations > 1) {
+      printf("Completed reports:\n");
+    }
+
+    ShowReports(completed_reports, show_operations > 1 ? 2 : 0, options);
+  }
+
+  for (const UUID& uuid : options.show_reports) {
+    CrashReportDatabase::Report report;
+    CrashReportDatabase::OperationStatus status =
+        database->LookUpCrashReport(uuid, &report);
+    if (status == CrashReportDatabase::kNoError) {
+      if (show_operations > 1) {
+        printf("Report %s:\n", uuid.ToString().c_str());
+      }
+      ShowReport(report, show_operations > 1 ? 2 : 0, options.utc);
+    } else if (status == CrashReportDatabase::kReportNotFound) {
+      // If only asked to do one thing, a failure to find the single requested
+      // report should result in a failure exit status.
+      if (show_operations + set_operations == 1) {
+        fprintf(stderr, "%s: Report not found\n", me.c_str());
+        return EXIT_FAILURE;
+      }
+      printf("Report %s not found\n", uuid.ToString().c_str());
+    } else {
+      return EXIT_FAILURE;
+    }
+  }
+
+  if (options.has_set_uploads_enabled &&
+      !settings->SetUploadsEnabled(options.set_uploads_enabled)) {
+    return EXIT_FAILURE;
+  }
+
+  if (options.set_last_upload_attempt_time_string &&
+      !settings->SetLastUploadAttemptTime(
+          options.set_last_upload_attempt_time)) {
+    return EXIT_FAILURE;
+  }
+
+  return EXIT_SUCCESS;
+}
+
+}  // namespace
+}  // namespace crashpad
+
+int main(int argc, char* argv[]) {
+  return crashpad::DatabaseUtilMain(argc, argv);
+}