class backup_migrate_destination_s3 in Backup and Migrate 7.3

A destination for sending database backups to an s3 server.

Hierarchy

• class \backup_migrate_item
  • class \backup_migrate_location
    • class \backup_migrate_destination
      • class \backup_migrate_destination_remote
        • class \backup_migrate_destination_s3

1 string reference to 'backup_migrate_destination_s3'

backup_migrate_backup_migrate_destination_subtypes in includes/destinations.inc

Implements hook_backup_migrate_destination_subtypes().

File

includes/destinations.s3.inc, line 13

Functions to handle the s3 backup destination.

class backup_migrate_destination_s3 extends backup_migrate_destination_remote {
  public $supported_ops = array(
    'scheduled backup',
    'manual backup',
    'remote backup',
    'restore',
    'list files',
    'configure',
    'delete',
  );
  public $s3 = NULL;
  public $cache_files = TRUE;

  /**
   * Save to to the s3 destination.
   */
  public function _save_file($file, $settings) {
    if ($s3 = $this
      ->s3_object()) {
      $path = $file
        ->filename();
      if ($s3
        ->putObject($s3
        ->inputFile($file
        ->filepath(), FALSE), $this
        ->get_bucket(), $this
        ->remote_path($file
        ->filename()), S3::ACL_PRIVATE)) {
        return $file;
      }
    }
    return FALSE;
  }

  /**
   * Load from the s3 destination.
   */
  public function load_file($file_id) {
    require_once dirname(__FILE__) . '/files.inc';
    $file = new backup_file(array(
      'filename' => $file_id,
    ));
    if ($s3 = $this
      ->s3_object()) {
      $data = $s3
        ->getObject($this
        ->get_bucket(), $this
        ->remote_path($file_id), $file
        ->filepath());
      if (!$data->error) {
        return $file;
      }
    }
    return NULL;
  }

  /**
   * Delete from the s3 destination.
   */
  public function _delete_file($file_id) {
    if ($s3 = $this
      ->s3_object()) {
      $s3
        ->deleteObject($this
        ->get_bucket(), $this
        ->remote_path($file_id));
    }
  }

  /**
   * List all files from the s3 destination.
   */
  public function _list_files() {
    require_once dirname(__FILE__) . '/files.inc';
    $files = array();
    if ($s3 = $this
      ->s3_object()) {
      $s3_files = $s3
        ->getBucket($this
        ->get_bucket(), $this
        ->get_subdir());
      foreach ((array) $s3_files as $id => $file) {
        $info = array(
          'filename' => $this
            ->local_path($file['name']),
          'filesize' => $file['size'],
          'filetime' => $file['time'],
        );
        $files[$info['filename']] = new backup_file($info);
      }
    }
    return $files;
  }

  /**
   * Get the form for the settings for this filter.
   */
  public function edit_form() {

    // Check for the library.
    $this
      ->s3_object();
    $form = parent::edit_form();
    $form['scheme']['#type'] = 'value';
    $form['scheme']['#value'] = 'https';
    $form['host']['#default_value'] = @$this->dest_url['host'] ? $this->dest_url['host'] : 's3.amazonaws.com';
    $form['path']['#title'] = 'S3 Bucket';
    $form['path']['#default_value'] = $this
      ->get_bucket();
    $form['path']['#description'] = 'This bucket must already exist. It will not be created for you.';
    $form['user']['#title'] = 'Access Key ID';
    $form['pass']['#title'] = 'Secret Access Key';
    $form['subdir'] = array(
      '#type' => 'textfield',
      '#title' => t('Subdirectory'),
      '#default_value' => $this
        ->get_subdir(),
      '#weight' => 25,
    );
    $form['settings']['#weight'] = 50;
    return $form;
  }

  /**
   * Submit the form for the settings for the s3 destination.
   */
  public function edit_form_submit($form, &$form_state) {

    // Append the subdir onto the path.
    if (!empty($form_state['values']['subdir'])) {
      $form_state['values']['path'] .= '/' . trim($form_state['values']['subdir'], '/');
    }
    parent::edit_form_submit($form, $form_state);
  }

  /**
   * Generate a filepath with the correct prefix.
   */
  public function remote_path($path) {
    if ($subdir = $this
      ->get_subdir()) {
      $path = $subdir . '/' . $path;
    }
    return $path;
  }

  /**
   * Generate a filepath with the correct prefix.
   */
  public function local_path($path) {
    if ($subdir = $this
      ->get_subdir()) {
      $path = str_replace($subdir . '/', '', $path);
    }
    return $path;
  }

  /**
   * Get the bucket which is the first part of the path.
   */
  public function get_bucket() {
    $parts = explode('/', @$this->dest_url['path']);
    return $parts[0];
  }

  /**
   * Get the bucket which is the first part of the path.
   */
  public function get_subdir() {

    // Support the older style of subdir saving.
    if ($subdir = $this
      ->settings('subdir')) {
      return $subdir;
    }
    $parts = explode('/', @$this->dest_url['path']);
    array_shift($parts);
    return implode('/', array_filter($parts));
  }

  /**
   *
   */
  public function s3_object() {

    // Try to use libraries module if available to find the path.
    if (function_exists('libraries_get_path')) {
      $library_paths[] = libraries_get_path('s3-php5-curl');
    }
    else {
      $library_paths[] = 'sites/all/libraries/s3-php5-curl';
    }
    $library_paths[] = drupal_get_path('module', 'backup_migrate') . '/includes/s3-php5-curl';
    $library_paths[] = drupal_get_path('module', 'backup_migrate') . '/includes';
    foreach ($library_paths as $path) {
      if (file_exists($path . '/S3.php')) {
        require_once $path . '/S3.php';
        if (!$this->s3 && !empty($this->dest_url['user'])) {

          // The hostname can be overridden.
          $host = 's3.amazonaws.com';
          if (isset($this->dest_url['host'])) {
            $host = $this->dest_url['host'];
          }
          $this->s3 = new S3($this->dest_url['user'], $this->dest_url['pass'], FALSE, $host);
        }
        return $this->s3;
      }
    }
    drupal_set_message(t('Due to drupal.org code hosting policies, the S3 library needed to use an S3 destination is no longer distributed with this module. You must download the library from !link and place it in one of these locations: %locations.', array(
      '%locations' => implode(', ', $library_paths),
      '!link' => l('http://undesigned.org.za/2007/10/22/amazon-s3-php-class', 'http://undesigned.org.za/2007/10/22/amazon-s3-php-class'),
    )), 'error', FALSE);
    return NULL;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
backup_migrate_destination::$cache_expire	public	property	24 hours, i.e. 24 * 60 * 60 seconds.
backup_migrate_destination::$db_table	public	property	Overrides backup_migrate_location::$db_table
backup_migrate_destination::$default_values	public	property	Overrides backup_migrate_location::$default_values
backup_migrate_destination::$destination_type	public	property
backup_migrate_destination::$fetch_time	public	property
backup_migrate_destination::$plural	public	property	Overrides backup_migrate_location::$plural
backup_migrate_destination::$singular	public	property	Overrides backup_migrate_location::$singular
backup_migrate_destination::$title_plural	public	property	Overrides backup_migrate_location::$title_plural
backup_migrate_destination::$title_singular	public	property	Overrides backup_migrate_location::$title_singular
backup_migrate_destination::$type_name	public	property	Overrides backup_migrate_location::$type_name
backup_migrate_destination::$weight	public	property		1
backup_migrate_destination::can_delete_file	public	function	Determine if we can read the given file.
backup_migrate_destination::can_read_file	public	function	Determine if we can read the given file. Overrides backup_migrate_location::can_read_file	1
backup_migrate_destination::confirm_destination	public	function	Check that a destination is valid.	1
backup_migrate_destination::count_files	public	function	Count all the available files in the given destination.
backup_migrate_destination::create_info_file	public	function	Create an ini file and write the meta data.
backup_migrate_destination::delete_confirm_message	public	function	Get a message to send to the user when confirming the deletion of the item. Overrides backup_migrate_location::delete_confirm_message
backup_migrate_destination::delete_file	public	function	Delete the file with the given destination specific id.
backup_migrate_destination::file_cache_clear	public	function	Retrieve the file list.
backup_migrate_destination::file_cache_get	public	function	Retrieve the file list.
backup_migrate_destination::file_cache_set	public	function	Cache the file list.
backup_migrate_destination::file_exists	public	function	Check if the file exists in the list of available files.
backup_migrate_destination::get_action_links	public	function	Get the action links for a destination. Overrides backup_migrate_location::get_action_links
backup_migrate_destination::get_file_links	public	function	Get the action links for a file on a given destination.
backup_migrate_destination::get_menu_items	public	function	Add the menu items specific to the destination type. Overrides backup_migrate_item::get_menu_items
backup_migrate_destination::get_remote	public	function	Get a boolean representing if the destination is remote or local.
backup_migrate_destination::list_files	public	function	List all the available files in the given destination.
backup_migrate_destination::load_files_info	public	function	Load up the file's metadata from the accompanying .info file if applicable.
backup_migrate_destination::save_file	public	function	Save the given file to the destination.	3
backup_migrate_destination::save_file_info	public	function	Save the file metadata.
backup_migrate_destination::settings_default	public	function	Get the form for the settings for this destination type. Overrides backup_migrate_location::settings_default
backup_migrate_destination::settings_form	public	function	Get the form for the settings for this destination. Overrides backup_migrate_location::settings_form
backup_migrate_destination::settings_form_submit	public	function	Submit the settings form. Any values returned will be saved. Overrides backup_migrate_location::settings_form_submit
backup_migrate_destination::settings_form_validate	public	function	Validate the form for the settings for this destination. Overrides backup_migrate_location::settings_form_validate	1
backup_migrate_destination::strings	public	function	This function is not supposed to be called. Overrides backup_migrate_location::strings
backup_migrate_destination::_file_info_file	public	function	Create the info file object.
backup_migrate_destination::_file_info_filename	public	function	Determine the file name of the info file for a file.
backup_migrate_destination_remote::get_display_location	public	function	The location to display is the url without the password. Overrides backup_migrate_location::get_display_location
backup_migrate_destination_remote::get_location	public	function	The location is a URI so parse it and store the parts. Overrides backup_migrate_location::get_location
backup_migrate_destination_remote::set_location	public	function	Return the location with the password. Overrides backup_migrate_location::set_location
backup_migrate_destination_s3::$cache_files	public	property	Overrides backup_migrate_destination::$cache_files
backup_migrate_destination_s3::$s3	public	property
backup_migrate_destination_s3::$supported_ops	public	property	Overrides backup_migrate_destination::$supported_ops
backup_migrate_destination_s3::edit_form	public	function	Get the form for the settings for this filter. Overrides backup_migrate_destination_remote::edit_form
backup_migrate_destination_s3::edit_form_submit	public	function	Submit the form for the settings for the s3 destination. Overrides backup_migrate_destination_remote::edit_form_submit
backup_migrate_destination_s3::get_bucket	public	function	Get the bucket which is the first part of the path.
backup_migrate_destination_s3::get_subdir	public	function	Get the bucket which is the first part of the path.
backup_migrate_destination_s3::load_file	public	function	Load from the s3 destination. Overrides backup_migrate_destination::load_file
backup_migrate_destination_s3::local_path	public	function	Generate a filepath with the correct prefix.
backup_migrate_destination_s3::remote_path	public	function	Generate a filepath with the correct prefix.
backup_migrate_destination_s3::s3_object	public	function
backup_migrate_destination_s3::_delete_file	public	function	Delete from the s3 destination. Overrides backup_migrate_destination::_delete_file
backup_migrate_destination_s3::_list_files	public	function	List all files from the s3 destination. Overrides backup_migrate_destination::_list_files
backup_migrate_destination_s3::_save_file	public	function	Save to to the s3 destination. Overrides backup_migrate_destination::_save_file
backup_migrate_item::$settings_path	public	property
backup_migrate_item::$show_in_list	public	property
backup_migrate_item::$storage	public	property
backup_migrate_item::all_items	public	function	Get all of the given items.
backup_migrate_item::decode_db_row	public	function	Decode a loaded db row (unserialize necessary fields).
backup_migrate_item::delete	public	function	Delete the item from the database.
backup_migrate_item::edit_form_validate	public	function	Validate the edit form for the item.	4
backup_migrate_item::export	public	function	Return as an exported array of values.
backup_migrate_item::from_array	public	function	Load an existing item from an array.
backup_migrate_item::generate_id	public	function	Return a random (very very likely unique) string id for a new item.
backup_migrate_item::get	public	function	Get the member with the given key.
backup_migrate_item::get_actions	public	function	Get the rendered action links for a destination.
backup_migrate_item::get_default_values	public	function	Get the default values for standard parameters.	2
backup_migrate_item::get_id	public	function	Get the primary id for this item (if any is set).
backup_migrate_item::get_list	public	function	Get a table of all items of this type.	1
backup_migrate_item::get_list_header	public	function	Get header for a lost of this type.
backup_migrate_item::get_machine_name_field	public	function	Get the machine name field name from the schema.
backup_migrate_item::get_primary_key	public	function	Get the primary key field title from the schema.
backup_migrate_item::get_schema	public	function	Get the schema for the item type.
backup_migrate_item::get_serialized_fields	public	function	Return the fields which must be serialized before saving to the db.
backup_migrate_item::get_settings_path	public	function	Get the columns needed to list the type.	1
backup_migrate_item::item	public	function	A particular item.
backup_migrate_item::item_exists	public	function	A particular item.
backup_migrate_item::load_row	public	function	Load an existing item from an database (serialized) array.
backup_migrate_item::revert_confirm_message	public	function	The message to send to the user when confirming the deletion of the item.
backup_migrate_item::save	public	function	Save the item to the database.
backup_migrate_item::set_id	public	function	Set the primary id for this item (if any is set).
backup_migrate_item::show_in_list	public	function	Get the columns needed to list the type.
backup_migrate_item::to_array	public	function	Return as an array of values.	1
backup_migrate_item::unique_id	public	function	Make sure this item has a unique id.
backup_migrate_item::_merge_defaults	public	function	Merge parameters with the given defaults.
backup_migrate_item::__construct	public	function	Set the basic info pulled from the db or generated programatically.	5
backup_migrate_location::$subtype	public	property
backup_migrate_location::backup_settings_default	public	function	Get the form for the settings for this filter.	3
backup_migrate_location::backup_settings_form	public	function	Get the form for the settings for this filter.	3
backup_migrate_location::backup_settings_form_submit	public	function	Submit the settings form. Any values returned will be saved.
backup_migrate_location::backup_settings_form_validate	public	function	Get the form for the settings for this filter.
backup_migrate_location::create	public	function	Create a new location of the correct type. Overrides backup_migrate_item::create
backup_migrate_location::file_types	public	function	Retrieve a list of filetypes supported by this source/destination.	3
backup_migrate_location::get_list_column_info	public	function	Get the columns needed to list the type. Overrides backup_migrate_item::get_list_column_info
backup_migrate_location::get_list_row	public	function	Get a row of data to be used in a list of items of this type. Overrides backup_migrate_item::get_list_row	1
backup_migrate_location::get_name	public	function	Get the name of the item. Overrides backup_migrate_item::get_name
backup_migrate_location::get_subtype_name	public	function	Get the type name of this location for display to the user.
backup_migrate_location::glue_url	public	function	Glue a URLs component parts back into a URL.
backup_migrate_location::location_types	public	function	Get the available location types.	1
backup_migrate_location::op	public	function	Does this location support the given operation.
backup_migrate_location::ops	public	function
backup_migrate_location::remove_op	public	function	Remove the given op from the support list.
backup_migrate_location::restore_settings_default	public	function	Get the form for the settings for this filter.
backup_migrate_location::restore_settings_form	public	function	Get the form for the settings for this filter.
backup_migrate_location::restore_settings_form_submit	public	function	Submit the settings form. Any values returned will be saved.
backup_migrate_location::restore_settings_form_validate	public	function	Get the form for the settings for this filter.
backup_migrate_location::settings	public	function
backup_migrate_location::set_name	public	function
backup_migrate_location::set_url	public	function	Break a URL into it's component parts.
backup_migrate_location::url	public	function	Get a url from the parts.