void CefCrashReportUploadThread::ProcessPendingReport()

in libcef/common/cef_crash_report_upload_thread.cc [56:127]
54 lines of code
15 McCabe index (conditional complexity)

void CefCrashReportUploadThread::ProcessPendingReport(
    const CrashReportDatabase::Report& report) {
  // Always allow upload if it's been explicitly requested by the user.
  if (!report.upload_explicitly_requested) {
    if (!UploadsEnabled()) {
      // Don’t attempt an upload if there’s no URL or if uploads have been
      // disabled in the database’s settings.
      database_->SkipReportUpload(
          report.uuid, Metrics::CrashSkippedReason::kUploadsDisabled);
      return;
    }

    if (MaxUploadsExceeded()) {
      // Don't send uploads if the rate limit has been exceeded.
      database_->SkipReportUpload(
          report.uuid, Metrics::CrashSkippedReason::kUploadThrottled);
      return;
    }
  }

  if (BackoffPending()) {
    // Try again later.
    return;
  }

  std::unique_ptr<const CrashReportDatabase::UploadReport> upload_report;
  CrashReportDatabase::OperationStatus status =
      database_->GetReportForUploading(report.uuid, &upload_report);
  switch (status) {
    case CrashReportDatabase::kNoError:
      break;

    case CrashReportDatabase::kBusyError:
      return;

    case CrashReportDatabase::kReportNotFound:
    case CrashReportDatabase::kFileSystemError:
    case CrashReportDatabase::kDatabaseError:
      // In these cases, SkipReportUpload() might not work either, but it’s best
      // to at least try to get the report out of the way.
      database_->SkipReportUpload(report.uuid,
                                  Metrics::CrashSkippedReason::kDatabaseError);
      return;

    case CrashReportDatabase::kCannotRequestUpload:
      NOTREACHED();
      return;
  }

  std::string response_body;
  UploadResult upload_result =
      UploadReport(upload_report.get(), &response_body);
  switch (upload_result) {
    case UploadResult::kSuccess:
      // The upload completed successfully.
      database_->RecordUploadComplete(std::move(upload_report), response_body);
      if (MaxUploadsEnabled())
        recent_upload_ct_++;
      ResetBackoff();
      break;
    case UploadResult::kPermanentFailure:
      // The upload should never be retried.
      database_->SkipReportUpload(report.uuid,
                                  Metrics::CrashSkippedReason::kUploadFailed);
      break;
    case UploadResult::kRetry:
      // The upload will be retried after a reasonable backoff delay. Since we
      // didn't successfully upload it we won't count it against the rate limit.
      IncreaseBackoff();
      break;
  }
}