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   1  <?php
   2  
   3  /**
   4   * @file
   5   * Provides wrapper functions for the s3 amazon webservices.
   6   */
   7  /*
   8   * Implementation of hook_perm().
   9   */
  10  function video_s3_perm() {
  11    return array('administer amazon s3');
  12  }
  13  
  14  /*
  15   * Implmentation of hook_help().
  16   */
  17  
  18  function video_s3_help($path, $arg) {
  19    switch ($path) {
  20      case 'admin/settings/video/amazon_s3':
  21        $output = t('Use Amazon Simple Storage Service (Amazon S3) to store your video files.  This frees up bandwidth from your site, providing a faster experience for your users.  Simply enable this module and enter your authentication details and you\'re done!');
  22        return $output;
  23    }
  24  }
  25  
  26  /*
  27   * Implementation of hook_menu().
  28   */
  29  
  30  function video_s3_menu() {
  31    $items = array();
  32    $items['admin/settings/video/amazon_s3/bucket/%/delete'] = array(
  33      'title' => 'Delete Bucket',
  34      'page callback' => 'video_s3_bucket_delete',
  35      'page arguments' => array(5),
  36      'access arguments' => array('administer amazon s3'),
  37      'file' => 'video_s3.admin.inc',
  38      'type' => MENU_CALLBACK,
  39    );
  40    return $items;
  41  }
  42  
  43  /*
  44   * Implementation of hook_cron().
  45   */
  46  
  47  function video_s3_cron() {
  48    if (!_video_s3_is_active_fs()) {
  49      return;
  50    }
  51  
  52    module_load_include('lib.inc', 'video_s3');
  53    $s3 = new video_amazon_s3();
  54    $s3->connect();
  55    // Lets run our queue.
  56    $s3->queue();
  57  }
  58  
  59  /**
  60   * Implementation of hook_video_delete.
  61   * we can use hook_file_delete()
  62   */
  63  function video_s3_video_delete($file) {
  64    module_load_include('lib.inc', 'video_s3');
  65    $s3 = new video_amazon_s3();
  66    $s3->connect();
  67    // Lets run our queue.
  68    $s3->delete($file->fid);
  69  }
  70  
  71  /**
  72   * Implementation of hook_video_update.
  73   * Submit handler to update our s3 table to include the node id.
  74   */
  75  function video_s3_video_update($form, &$form_state) {
  76    //lets update our video rending table to include the node id created
  77    if (isset($form_state['nid']) && isset($form_state['values']['video_id']) && is_array($form_state['values']['video_id'])) {
  78      foreach ($form_state['values']['video_id'] as $fid) {
  79        //lets update our table to include the nid
  80        db_query("UPDATE {video_s3} SET nid=%d WHERE fid=%d", $form_state['nid'], $fid);
  81      }
  82    }
  83  }
  84  
  85  /**
  86   * Implementing hook_video_insert
  87   * @param <type> $element
  88   * @param <type> $form_state
  89   */
  90  function video_s3_video_insert(&$element, &$form_state) {
  91    if (!_video_s3_is_active_fs()) {
  92      return;
  93    }
  94  
  95    $file = $element['#value'];
  96    //we need to check if this fid has already been added to the database AND that there is in fact a fid
  97    if (is_array($file) && isset($file['fid']) && !empty($file['fid'])) {
  98      module_load_include('lib.inc', 'video_s3');
  99      $s3 = new video_amazon_s3();
 100      $s3->connect();
 101      // Lets verify that we haven't added this video already.  Multiple validation fails will cause this to be ran more than once
 102      if (!$video = $s3->verify($file['fid'])) {
 103        // Video has not been added to the queue yet so lets add it.
 104        $s3->insert($file['fid']);
 105        drupal_set_message(t('Video submission queued for transfer to your Amazon S3 server. Will be there shortly.'));
 106      }
 107    }
 108  }
 109  
 110  function video_s3_get_object_info($object) {
 111    module_load_include('lib.inc', 'video_s3');
 112    $s3 = new video_amazon_s3();
 113    $s3->connect();
 114    return $s3->get_object_info($object);
 115  }
 116  
 117  /**
 118   * @param string $objectUri
 119   * @deprecated Use video_amazon_s3::get_authenticated_url($objectUri)
 120   */
 121  function video_s3_get_authenticated_url($objectUri) {
 122    module_load_include('lib.inc', 'video_s3');
 123    $s3 = new video_amazon_s3();
 124    $s3->connect();
 125    return $s3->get_authenticated_url($objectUri);
 126  }
 127  
 128  function video_s3_get_object($object, $save_to = false) {
 129    module_load_include('lib.inc', 'video_s3');
 130    $s3 = new video_amazon_s3();
 131    $s3->connect();
 132    return $s3->get_object($object, $save_to);
 133  }
 134  
 135  /*
 136   * Deletes a bucket from your Amazon S3 server.
 137   */
 138  
 139  function video_s3_bucket_delete($bucket) {
 140    module_load_include('lib.inc', 'video_s3');
 141    $s3 = new video_amazon_s3();
 142    $s3->connect();
 143    $buckets = $s3->s3->listBuckets();
 144    if (is_array($buckets) && in_array($bucket, $buckets)) {
 145      if ($s3->s3->deleteBucket($bucket)) {
 146        drupal_set_message(t('Successfully deleted the bucket %bucket', array('%bucket' => $bucket)));
 147      } else {
 148        drupal_set_message(t('Could not delete the bucket %bucket', array('%bucket' => $bucket)), 'error');
 149      }
 150    } else {
 151      drupal_set_message(t('The bucket %bucket does not exist for deletion.', array('%bucket' => $bucket)), 'error');
 152    }
 153    drupal_goto('admin/settings/video/amazon_s3');
 154  }
 155  
 156  function _video_s3_is_active_fs() {
 157    return variable_get('vid_filesystem', 'drupal') === 'video_s3';
 158  }