text: // Copyright 2020 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/ash/policy/reporting/install_event_log_uploader_base.h"
  
  #include <algorithm>
  
  #include "ash/constants/ash_switches.h"
  #include "base/command_line.h"
  
  namespace policy {
  
  namespace {
  
  // The backoff time starts at |kMinRetryBackoffMs| and doubles after each upload
  // failure until it reaches |kMaxRetryBackoffMs|, from which point on it remains
  // constant. The backoff is reset to |kMinRetryBackoffMs| after the next
  // successful upload or if the upload request is canceled.
  const int kMinRetryBackoffMs = 10 * 1000;            // 10 seconds
  const int kMaxRetryBackoffMs = 24 * 60 * 60 * 1000;  // 24 hours
  
  // If install-log-fast-upload-for-tests flag is enabled, do not increase retry
  // backoff.
  bool FastUploadForTestsEnabled() {
    return base::CommandLine::ForCurrentProcess()->HasSwitch(
        chromeos::switches::kInstallLogFastUploadForTests);
  }
  
  }  // namespace
  
  InstallEventLogUploaderBase::InstallEventLogUploaderBase(
      CloudPolicyClient* client,
      Profile* profile)
      : client_(client),
        profile_(profile),
        retry_backoff_ms_(kMinRetryBackoffMs) {
    DCHECK(client_);
    client_->AddObserver(this);
  }
  
  InstallEventLogUploaderBase::InstallEventLogUploaderBase(Profile* profile)
      : client_(nullptr),
        profile_(profile),
        retry_backoff_ms_(kMinRetryBackoffMs) {}
  
  InstallEventLogUploaderBase::~InstallEventLogUploaderBase() {
    if (client_)
      client_->RemoveObserver(this);
  }
  
  void InstallEventLogUploaderBase::RequestUpload() {
    CheckDelegateSet();
    if (upload_requested_)
      return;
  
    upload_requested_ = true;
  
    // If the client is set - ensure that it is also registered.
    // Otherwise start Serialization.
    if ((client_ && client_->is_registered()) || !client_) {
      StartSerialization();
    }
  }
  
  void InstallEventLogUploaderBase::CancelUpload() {
    CancelClientUpload();
    upload_requested_ = false;
    retry_backoff_ms_ = kMinRetryBackoffMs;
  }
  
  void InstallEventLogUploaderBase::OnRegistrationStateChanged(
      CloudPolicyClient* client) {
    DCHECK(client_);
    if (!upload_requested_)
      return;
  
    if (client->is_registered()) {
      StartSerialization();
    } else {
      CancelUpload();
      RequestUpload();
    }
  }
  
  void InstallEventLogUploaderBase::OnUploadDone(bool success) {
    if (success) {
      upload_requested_ = false;
      retry_backoff_ms_ = kMinRetryBackoffMs;
      OnUploadSuccess();
      return;
    }
    PostTaskForStartSerialization();
    if (FastUploadForTestsEnabled())
      return;
    retry_backoff_ms_ = std::min(retry_backoff_ms_ << 1, kMaxRetryBackoffMs);
  }
  
  }  // namespace policy
  