custom_fb_feed.module

<?php

/**
 * Implements hook_menu().
 */
function custom_fb_feed_menu() {
  $items = array();
  $items['admin/config/services/custom_fb_feed'] = array(
    'title' => 'Custom Facebook Feed',
    'description' => 'Configuration for Custom Facebook Feed module',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('_custom_fb_feed_settings'),
    'access arguments' => array('access administration pages'),
    'type' => MENU_NORMAL_ITEM,
  );
  return $items;
}

function _custom_fb_feed_settings($form, &$form_state) {
  $form['custom_fb_feed_page_name'] = array(
    '#type' => 'textfield',
    '#title' => t('Facebook Page Name'),
    '#default_value' => variable_get('custom_fb_feed_page_name'),
    '#required' => TRUE,
  );
  $form['custom_fb_feed_app_id'] = array(
    '#type' => 'textfield',
    '#title' => t('Facebook App ID'),
    '#default_value' => variable_get('custom_fb_feed_app_id'),
    '#required' => TRUE,
  );
  $form['custom_fb_feed_secret_key'] = array(
    '#type' => 'textfield',
    '#title' => t('Facebook Secret Key'),
    '#default_value' => variable_get('custom_fb_feed_secret_key'),
    '#required' => TRUE,
  );
  $form['custom_fb_feed_feeds_number'] = array(
    '#type' => 'textfield',
    '#title' => t('Number of Feeds'),
    '#default_value' => variable_get('custom_fb_feed_feeds_number', 10),
    '#size' => 2,
    '#maxlength' => 2,
    '#element_validate' => array('element_validate_integer_positive'),
  );
  return system_settings_form($form);
}


/**
 * Implements hook_block_info().
 */
function custom_fb_feed_block_info() {
  $blocks = array();
  $blocks['fb_feed'] = array(
    'info' => t('Facebook feed'),
  );
  return $blocks;
}

/**
 * Implements hook_block_view().
 */
function custom_fb_feed_block_view($delta='') {
  $block = array();
  switch($delta) {
    case 'fb_feed':
      $block['subject'] = t('Facebook feed');
      $block['content'] = _custom_fb_feed_block_view();
      break;
  }
  return $block;
}

/**
 * Implements hook_theme().
 */
function custom_fb_feed_theme($existing, $type, $theme, $path) {
  return array(
    'custom_fb_feed_facebook' => array(
      'variables' => array('facebook' => NULL),
      'template' => 'custom_fb_feed_facebook',
    ),
  );
}


function _custom_fb_feed_block_view() {
  $feed = array();
  $page_name = variable_get('custom_fb_feed_page_name');
  $app_id = variable_get('custom_fb_feed_app_id');
  $secret = variable_get('custom_fb_feed_secret_key');
  $limit = variable_get('custom_fb_feed_feeds_number', 10);
  $url = "https://graph.facebook.com/" . $page_name . "/feed?limit=" . $limit . "&access_token=" . $app_id . "|" . $secret . "&posts&fields=id,picture,type,story,from,message,status_type,object_id,name,caption,description,link,created_time,comments.limit(1).summary(true),likes.limit(1).summary(true)";
  $request = drupal_http_request($url);
  if ($request->status_message == "OK") {
    $json_response = drupal_json_decode($request->data);
    foreach ($json_response['data'] as $value) {
      $feed[] = $value;
    }
  }
  return theme('custom_fb_feed_facebook', array('facebook' => $feed));
}