media_mediahaven.module

<?php

/**
 * @file
 * A block module that displays recent blog and forum posts.
 */

/**
 * load configuration settings
 */
include_once dirname(__FILE__) . '/includes/media_mediahaven.variables.inc';
include_once dirname(__FILE__) . '/includes/media_mediahaven.utils.inc';

// Hooks and callbacks for integrating with File Entity module for display.
require_once dirname(__FILE__) . '/includes/media_mediahaven.formatters.inc';
drupal_add_css(drupal_get_path('module', 'media_mediahaven') . '/media_mediahaven.css');

/**
 * Implements hook_menu_local_tasks_alter().
 */
function media_mediahaven_menu_local_tasks_alter(&$data, $router_item, $root_path) {
  // Add action link to 'file/add' on 'admin/content/file/thumbnails' page.
  if ($root_path == 'admin/content/file'||$root_path == 'admin/content/file/thumbnails') {
    $item = menu_get_item('admin/content/media/media_mediahaven/upload');
    if (!empty($item['access'])) {
      $data['actions']['output'][] = array(
        '#theme' => 'menu_local_action',
        '#link' => $item,
        '#weight' => $item['weight'],
      );
    }
  }
}

/**
 * Implements hook_stream_wrappers().
 */
function media_mediahaven_stream_wrappers() {
  return array(
    'mediahaven' => array(
      'name' => t('MediaHaven media'),
      'class' => 'MediaMediaHavenStreamWrapper',
      'description' => t('Media provided by MediaHaven.'),
      'type' => STREAM_WRAPPERS_READ_VISIBLE | STREAM_WRAPPERS_WRITE_VISIBLE,
    ),
  );
}

/**
 * Implements hook_help().
 *
 * Displays help and module information.
 */
function media_mediahaven_help($path, $arg) {
  switch ($path) {
    case "admin/advanced_help#media_mediahaven":
      return '<p>' . t("Advanced Help: Displays links to nodes created on this date") . '</p>';

    case "admin/help#media_mediahaven":
      return '<p>' . t("Help: Displays links to nodes created on this date") . '</p>';
  }
}

/**
 * Implements hook_block_info().
 */
function media_mediahaven_block_info() {
  $blocks['media_mediahaven'] = array(
    // The name that will appear in the block list.
    'info' => t('Mediahaven'),
    // Default setting.
    'cache' => DRUPAL_CACHE_PER_ROLE,
  );
  return $blocks;
}

/**
 * Custom content function.
 *
 * Set beginning and end dates, retrieve posts from database
 * saved in that time period.
 *
 * @return array
 *   A result set of the targeted posts.
 */
function media_mediahaven_contents($display) {
  // $display argument is new.
  // Get today's date.
  $today = getdate();
  // Calculate midnight a week ago.
  $start_time = mktime(0, 0, 0, $today['mon'], ($today['mday'] - 7), $today['year']);
  // Get all posts from one week ago to the present.
  $end_time = time();
  $max_num = variable_get('media_mediahaven_max', 3);
  // Use Database API to retrieve current posts.
  // Published.
  // Most recent first. Query paused here.
  $query = db_select('node', 'n')->fields('n', array('nid', 'title', 'created'))->condition('status', 1)
  ->condition('created', array($start_time, $end_time), 'BETWEEN')->orderBy('created', 'DESC');

  if ($display == 'block') {
    $query->range(0, $max_num);
  }
  // If called by page, query proceeds directly to execute().
  return $query->execute();
}

/**
 * Implements hook_block_view().
 *
 * Prepares the contents of the block.
 */
function media_mediahaven_block_view($delta = '') {
  switch ($delta) {
    case 'media_mediahaven':
      $block['subject'] = t('Mediahaven');
      if (user_access('access content')) {
        // Use our custom function to retrieve data.
        $result = media_mediahaven_contents('block');
        // Array to contain items for the block to render.
        $items = array();
        // Iterate over the resultset and format as links.
        foreach ($result as $node) {
          $items[] = array(
            'data' => l($node->title, 'node/' . $node->nid),
          );
        }
        // No content in the last week.
        if (empty($items)) {
          $block['content'] = t('No posts available.');
        }
        else {
          // Pass data through theme function.
          $block['content'] = theme('item_list', array(
              'items' => $items,
            ));
        }
      }
      return $block;
  }
}

/**
 * Implements hook menu().
 */
function media_mediahaven_menu() {
  $items = array();
  $items['admin/config/media/media_mediahaven'] = array(
    'title' => 'Mediahaven Settings',
    'description' => 'Configuration for media mediahaven module',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('media_mediahaven_form'),
    'access arguments' => array('administer site configuration'),
    'file' => 'includes/media_mediahaven.admin.inc',
    'type' => MENU_NORMAL_ITEM,
  );
  $items['media_mediahaven'] = array(
    'title' => 'Media',
    'page callback' => '_media_mediahaven_page',
    'access arguments' => array('access media_mediahaven content'),
    // Will appear in Navigation menu.
    'type' => MENU_NORMAL_ITEM,
  );
  $items['media_mediahaven/upload'] = array(
    'title' => 'Add Media to MediaHaven',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('media_mediahaven_upload'),
    'access arguments' => array('access media_mediahaven content'),
    'file' => 'includes/media_mediahaven.upload.inc',
    'weight' => -1,
  );
  $items['media/add/media_mediahaven'] = array(
    'title' => 'Add media from Mediahaven',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('media_mediahaven_add'),
    'access arguments' => array('administer site configuration'),
    'type' => MENU_LOCAL_ACTION,
    'file' => 'includes/media_mediahaven.admin.inc',
    'weight' => -1,
  );

  $items['admin/content/media/add/media_mediahaven'] = $items['media/add/media_mediahaven'];
  $items['admin/content/media/media_mediahaven/upload'] = $items['media_mediahaven/upload'];

  return $items;
}

/**
 * Implements hook_permission().
 */
function media_mediahaven_permission() {
  return array(
    'access media_mediahaven content' => array(
      'title' => t('Access content for the Media Tuur module'),
    ),
  );
}

/**
 * Implements hook_media_browser_plugin_info().
 */
function media_mediahaven_media_browser_plugin_info() {
  $info['mediahaven'] = array(
    'title' => t('MediaHaven'),
    'class' => 'MediaMediaHavenBrowser',
  );

  return $info;
}

/**
 * Custom page callback function, declared in current_posts_menu().
 */
function _media_mediahaven_page() {
  $result = media_mediahaven_contents('page');
  // Array to contain items for the page to render.
  $items = array();
  // Iterate over the resultset and format as links.
  foreach ($result as $node) {
    $items[] = array(
      'data' => l($node->title, 'node/' . $node->nid),
    );
  }

  // No content in the last week.
  if (empty($items)) {
    $page_array['media_mediahaven_arguments'] = array(
      // Title serves as page subtitle.
      '#title' => t('All posts from the last week'),
      '#markup' => t('No posts available.'),
    );
    return $page_array;
  }
  else {
    $page_array['media_mediahaven_arguments'] = array(
      '#title' => t('All posts from the last week'),
      '#items' => $items,
      // Theme hook with suggestion.
      '#theme' => 'item_list__media_mediahaven',
    );
    return $page_array;
  }
}

/**
 * Implements hook_form_FORM_ID_alter().
 *
 * This alter enhances the default admin/content/file page making modifications
 *  to the thumbnail view by replacing the existing
 * checkboxes and table with thumbnails.
 */
function media_mediahaven_form_file_entity_edit_alter(&$form, $form_state) {
  // Not implemented.
}

function media_mediahaven_form_file_entity_add_upload_alter(&$form, $form_state) {
  if ($form['#step'] == 1) {
    $form['mediahaven_upload'] = array(
      '#type' => 'checkbox',
      '#title' => t('Upload file to Media Haven'),
      '#default_value' => variable_get('media_mediahaven_upload_choice', FALSE),
    );

    $form['title'] = array(
      '#name' => 'title',
      '#type' => 'textfield',
      '#title' => t('Title of the media object(s)'),
      '#size' => 22,
      '#states' => array(
        'visible' => array(
          ':input[name="mediahaven_upload"]' => array('checked' => TRUE),
        ),
      ),
    );

    $form['description'] = array(
      '#name' => 'description',
      '#type' => 'textarea',
      '#title' => t('Description of the media object(s)'),
      '#states' => array(
        'visible' => array(
          ':input[name="mediahaven_upload"]' => array('checked' => TRUE),
        ),
      ),
    );
    $form['keywords'] = array(
      '#name' => 'keywords',
      '#type' => 'textarea',
      '#title' => t('Keywords'),
      '#description' => t('Enter multiple keywords separated by a comma (,)'),
      '#states' => array(
        'visible' => array(
          ':input[name="mediahaven_upload"]' => array('checked' => TRUE),
        ),
      ),
    );

    $form['#validate'][] = 'media_mediahaven_add_file_entity_validate';
    $form['#submit'][] = 'media_mediahaven_add_file_entity_submit';
  }

  if ($form['#step'] == 3) {
    if ($form_state['values']['mediahaven_upload'] == 1) {
      $form['scheme']['#default_value'] = 'mediahaven';
      unset($form['scheme']['#options']['public']);
    }
  }
}

function media_mediahaven_add_file_entity_validate($form, &$form_state) {
  if ($form_state['values']['mediahaven_upload'] == 1) {
    module_load_include('inc', 'media_mediahaven', 'includes/media_mediahaven.upload');

    $upload = $form_state['values']['upload'];
    $upload = file_load($upload);
    $url = file_create_url($upload->uri);
    $url = str_replace('http://' . $_SERVER['HTTP_HOST'], '', $url);
    $url = $_SERVER['DOCUMENT_ROOT'] . $url;

    $filename = $upload->filename;
    $info = pathinfo($filename);
    $filename = str_replace('.' . $info['extension'], '', $filename);
    $metadata_file = '/tmp/' . $filename . '.xml';
    $metadata = media_mediahaven_build_metadata($form_state['values']);
    media_mediahaven_generate_metadata($metadata_file, $metadata);

    $result = media_mediahaven_rest_client()->upload($url, $metadata_file, variable_get('media_mediahaven_ingestspace_id','5ebefe86-279c-4e19-857c-23ec0e975278'));
    $result = json_decode($result);

    if ($result) {
      $form_state['storage']['fragmentid'] = $result->fragmentId;
    } else {
      form_set_error('mediahaven_upload', t('Error processing file to Mediahaven. This file could already exists.'));
    }
  }
}

function media_mediahaven_add_file_entity_submit($form, &$form_state) {
  if ($form_state['values']['mediahaven_upload'] == 1) {
    $fragmentid = $form_state['storage']['fragmentid'];

    //Alter the file
    $fid = $form_state['values']['upload'];
    $file = file_load($fid);

    $uri = file_stream_wrapper_uri_normalize("mediahaven://f/" . $fragmentid);
    $file->uri = $uri;

    file_save($file);
  }
}

/**
 * Implements hook form_file_entity_admin_file_alter().
 */
function media_mediahaven_form_file_entity_admin_file_alter(&$form, $form_state) {
  if (!empty($form_state['values']['operation'])) {
    // The form is being rebuilt because an operation requiring confirmation
    // We don't want to be messing with it in this case.
    return;
  }

  if (arg(3) == 'thumbnails') {

    if (empty($form['admin']['files'])) {
      // Display empty text if there are no files.
      $form['admin']['files'] = array(
        '#markup' => '<p>' . $form['files']['#empty'] . '</p>',
      );
    }
    else {
      $files = file_load_multiple(array_keys($form['admin']['files']));

      $form['admin']['files'] = array(
        '#tree' => TRUE,
        '#prefix' => '<div class="media-display-thumbnails media-clear clearfix"><ul id="media-browser-library-list" class="media-list-thumbnails">',
        '#suffix' => '</ul></div>',
      );

      foreach ($files as $file) {
        if (strstr($file->uri, 'mediahaven://')) {
          $preview = media_mediahaven_get_thumbnail_preview($file, TRUE);
        }
        else {
          $preview = media_get_thumbnail_preview($file, TRUE);
        }
        $form['admin']['files'][$file->fid] = array(
          '#type' => 'checkbox',
          '#title' => '',
          '#prefix' => '<li>' . drupal_render($preview),
          '#suffix' => '</li>',
        );
      }
    }
  }
}

/**
 * Retrieve the thumbnail for a file.
 */
function media_mediahaven_get_thumbnail_preview($file, $link = NULL) {
  // If a file has an invalid type, allow file_view_file() to work.
  if (!file_type_is_enabled($file->type)) {
    $file->type = file_get_type($file);
  }

  $preview = file_view_file($file, 'preview');
  $preview['#show_names'] = TRUE;
  $preview['#add_link'] = $link;
  $preview['#theme_wrappers'][] = 'media_mediahaven_thumbnail';

  return $preview;
}

/**
 * Implements hook_theme().
 */
function media_mediahaven_theme($existing, $type, $theme, $path) {
  return array(
    // The default media file list form element.
    'media_file_list' => array(
      'variables' => array('element' => NULL),
    ),
    // A preview of the uploaded file.
    'media_mediahaven_thumbnail' => array(
      'render element' => 'element',
      'file' => 'includes/media_mediahaven.theme.inc',
    ),
    'media_mediahaven_video' => array(
      'variables' => array('uri' => NULL, 'options' => array()),
      'file' => 'media_mediahaven.theme.inc',
      'path' => $path . '/includes',
      'template' => 'media-mediahaven-video',
    ),
  );
}

/**
 * Provides a form for adding media items from MediaHaven search.
 */
function media_mediahaven_browser_add($form, &$form_state = array()) {
  module_load_include('inc', 'media', 'includes/media.browser');

  // Our search term can come from the form, or from the pager.
  $term = isset($form_state['values']['search']) ? $form_state['values']['search'] : (isset($_GET['search']) ? $_GET['search'] : '');
  $tagsearch = isset($form_state['values']['facet_search']) ? $form_state['values']['facet_search'] : (isset($_GET['facet_search']) ? $_GET['facet_search'] : '');
  $tagsearchstring = '';
  $termssearchstring = '';
  
  if (!empty($term)) {
    $termssearchstring = str_replace(' ','+',$term);	
  }

  if (!empty($tagsearch)) {
    $tagsearch = explode("\n", $tagsearch);
    $tagsearchstring = array();

    foreach ($tagsearch as $tag) {
      $tagsearchstring[] = '+(' . $tag . ')';
    }

    $tagsearchstring = implode(' ', $tagsearchstring);
  }

  $selected = isset($form_state['values']['facet_selected']) ? $form_state['values']['facet_selected'] : (isset($_GET['facet_selected']) ? $_GET['facet_selected'] : '');

  if (!empty($selected)) {
    $selected = explode("\n", $selected);
  }

  $form['search'] = array(
    '#type' => 'textfield',
    '#title' => t('Search'),
    '#description' => t('Input a phrase or tags to search.'),
    '#default_value' => $term,
  );

  //Show selected facets
  if (!empty($selected)) {
    $markup = '';
    foreach ($selected as $index => $selectedterm) {
      $markup .= l($selectedterm, '<front>', array('attributes' => array('class' => array('facetdeletelink'), 'data' => $index))) . '<br />';
    }

    $markup = '<strong>' . t('You have filtered on') . ':</strong><br />' . $markup;
    $form['facetsselected'] = array(
      '#markup' => $markup,
    );
  }

  $form['facet_selected'] = array(
    '#type' => 'textarea',
    '#title' => t('Facet selected'),
    '#default_value' => $selected,
    '#prefix' => '<div style="display: none;">',
    '#suffix' => '</div>'
  );

  $form['facet_search'] = array(
    '#type' => 'textarea',
    '#title' => t('Facet search'),
    '#default_value' => $tagsearch,
    '#prefix' => '<div style="display: none;">',
    '#suffix' => '</div>',
  );

  if(empty($tagsearchstring) && empty($termssearchstring))
  {
    $facets = json_decode(media_mediahaven_rest_client()->getFacets('*'));
  } else {
    $facets = json_decode(media_mediahaven_rest_client()->getFacets($termssearchstring . ' ' . $tagsearchstring));
  }

  if (isset($facets->facet) && is_array($facets->facet)) {
    $first = TRUE;

    foreach ($facets->facet as $facet) {
      $name = $facet->name;
      $title = $facet->title;
      $tags = array();

      foreach ($facet->value as $tag) {
        $tags[] = l(sprintf('%s (%d)', $tag->label, $tag->count), $tag->atom, array('attributes' => array('class' => array('facetlink'), 'data' => $tag->label)));
      }

      if (!empty($tags)) {
        $form["fieldset_{$name}"] = array(
          '#type' => 'fieldset',
          '#title' => $title,
          '#collapsible' => TRUE,
          '#collapsed' => ($first ? FALSE : TRUE),
        );

        $form["fieldset_{$name}"]['tags'] = array(
          '#markup' => theme('item_list', array('items' => $tags)),
        );
      }

      $first = FALSE;
    }
  }

  $form['apply'] = array(
    '#type' => 'button',
    '#value' => t('Apply'),
  );

  // This is our half-assed pager.
  $page = isset($_GET['page-yt']) ? $_GET['page-yt'] : 0;
  if (isset($form_state['values']['search'])) {
    // Reset the pager when we press apply.
    $page = 0;
  }

  if (!empty($tagsearchstring)) {
    $search = json_decode(media_mediahaven_rest_client()->search(urldecode($tagsearchstring), $page * 15, 15), TRUE);
  }

  if (!empty($term)) {
    $search = json_decode(media_mediahaven_rest_client()->search($term, $page * 15, 15), TRUE);
  }

  $empty = FALSE;
  $files = array();
  if (!isset($search) || !isset($search['totalNrOfResults']) || $search['totalNrOfResults'] == 0) {
    $empty = TRUE;
  }
  else {
    foreach ($search['mediaDataList'] as $media) {

      // Create a temporary file object for our retrieved video.
      $file = media_mediahaven_mediadata_to_file($media);

      if (!isset($file->fid)) {
        $file->fid = 0;
      }
      $uri = $file->uri;

      media_browser_build_media_item($file);

      $file->preview = l($file->preview, 'media/browser', array(
          'html' => TRUE,
          'attributes' => array(
            'data-uri' => $uri,
          ),
          'query' => array('render' => 'media-popup', 'uri' => $uri),
        ));
      $form['media'][$uri] = array(
        '#markup' => $file->preview,
        '#prefix' => '<li>',
        '#suffix' => '</li>',
      );
      $files[$uri] = $file;
    }
  }

  if (!count($files)) {
    $empty = TRUE;
  }

  if ($empty) {
    $form['empty'] = array(
      '#markup' => '<div class="empty-message">' . t('No media match your search criteria. Please try again.') . '</div>',
    );
  }

  $query = $_GET;
  if ($term !== '') {
    $query['search'] = $term;
  }

  if (!empty($tagsearchstring)) {
    $query['facet_search'] = $tagsearchstring;
  }

  $dest = $query['q'];
  unset($query['q']);
  $prev = $next = '';
  if ($page) {
    $query['page-yt'] = $page - 1;
    $prev = l(t('previous'), $dest, array('query' => $query));
  }
  $query['page-yt'] = $page + 1;
  if (!$empty && $search['totalNrOfResults'] > ($page + 1) * 15) {
    $next = l(t('next'), $dest, array('query' => $query));
  }

  $form['submitted-media'] = array(
    '#type' => 'hidden',
    '#default_value' => FALSE,
  );

  // Add the files to JS so that they are accessible inside the browser.
  drupal_add_js(array('media' => array('files' => $files)), 'setting');

  // Add media browser javascript and CSS.
  drupal_add_js(drupal_get_path('module', 'media_mediahaven') .
    '/js/media-mediahaven.browser.js'
  );

  $form['actions'] = array('#type' => 'actions');
  $form['actions']['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Submit'),
  );

  $form['media']['#prefix'] = '<div id="container">';
  if (isset($search) && $search['totalNrOfResults'] > 0) {
    $form['media']['#prefix'] .= '<div>' . t('Number of results:') . ' ' . $search['totalNrOfResults'] . '<span style="float:right">' . $prev . ' ' . $next . '</span></div>';
  }
  $form['media']['#prefix'] .= '<div id="scrollbox"><ul id="media-browser-library-list" class="media-list-thumbnails">';
  $form['media']['#suffix'] = '</ul><div id="status"></div></div></div>';
  return $form;
}

/**
 * Submit the selected media file.
 *
 * @param unknown $form
 *   the form
 * @param unknown $form_state
 *   formstate
 */
function media_mediahaven_browser_add_submit($form, &$form_state) {
  $uri = $form_state['values']['submitted-media'];
  try {
    // Save the remote file.
    $file = file_uri_to_object($uri, TRUE);

    if (!$file->fid) {
      $fragment_id = media_mediahaven_uri_parse_fragmentid($uri);
      $media_data = media_mediahaven_rest_client()->getMediaObject($fragment_id);
      $file = media_mediahaven_mediadata_to_file(json_decode($media_data, TRUE));
      file_save($file);
    }
  }
  catch(Exception$e) {
    form_set_error('url', $e->getMessage());
    return;
  }

  if (!$file->fid) {
    form_set_error('url', t('The file %file could not be saved. An unknown error has occurred.', array('%file' => $uri)));
    return;
  }
  else {
    $form_state['file'] = $file;
  }
}

/**
 * Before saving the file.
 *
 * @param unknown $file
 *   the file
 */
function media_mediahaven_file_presave($file) {
  if (stristr($file->uri, 'mediahaven://')) {
    $file->metadata['height'] = variable_get('media_mediahaven_thumb_height',150);
    $file->metadata['width'] = variable_get('media_mediahaven_thumb_width',150);

    if (($file->type) == 'image') {
      $file->filemime = 'image/mediahaven';
    }
    elseif (($file->type) == 'video') {
      $file->filemime = 'video/mediahaven';
    }
  }
}