chat.module

<?php

/**
 * Implements hook_permission().
 */
function chat_permission() {
  return array(
    'administer sms' => array(
      'title' => t('Administer Chat SMS'),
    ),
  );
}

function chat_menu() {
  $items['sms/%'] = array(
    'title' => 'SMS',
    'page callback' => 'smsentity_view_entity',
    'page arguments' => array(1),
    'access callback' => TRUE,
  );
  $items['api'] = array(
    'title' => 'SMS POST API',
    'page callback' => 'sms_api',
    'access callback' => TRUE,
  );
  return $items;
}

function sms_api() {
//  dsm($_REQUEST);
  $message = urldecode($_REQUEST['text']);
  $prefix = substr($message, 0, 4);
  if (strtolower($prefix) == 'chat') {
    $message = trim(substr($message, 4));
    $new_sms = entity_create('sms', array(
      'type' => 'sms', //bundle
      'mobile' => check_plain($_REQUEST['phone']),
      'message' => $message,
        ))->save();
    dsm($new_sms);
  }
  return "Message Posted";
}

function chat_entity_info() {
  $info = array();
  // Our custom sms entity needs to be defined here.
  // See http://drupal.org/node/1026420 and http://drupal.org/node/878804
  // for more documentation.
  $info['sms'] = array(
    // Human readable label.
    'label' => t('SMS'),
    // Table for storing entity data, defined in hook_schema().
    'base table' => 'sms',
    // This helps Entity API know how to query your custom table.
    'entity keys' => array(
      'id' => 'id',
      'label' => 'mobile',
    ),
    // These are the default controllers.
    // 'entity class' => 'Entity',
    'entity class' => 'SMSEntity',
    // This is a uri function provided by the Entity contrib module.
    // It's a simple wrapper around the uri method in the controller class.
    'uri callback' => 'entity_class_uri',
    // 'controller class' => 'DrupalDefaultEntityController',
    // Other options provided by the EntityAPI contrib module:
    // 'controller class' => 'EntityAPIController ',
    // 'controller class' => 'EntityAPIControllerExportable',
    'controller class' => 'SMSEntityController',
    // The information below is used to extend the EntityDefaultUIController
    'admin ui' => array(
      'path' => 'admin/sms',
      'controller class' => 'SMSEntityUIController',
      'menu wildcard' => '%entity_object',
      'file' => 'sms.admin.inc',
    ),
    //Inside of the default ui controller, there is some code that requires this
    //for creating the appropriate hook_menu equivalents
    'module' => 'chat',
    // Access callback to determine permisisons.
    'access callback' => 'sms_access_callback',
    // Tell FieldAPI that fields can be attached to our sms entity
    'fieldable' => TRUE,
    'bundles' => array(
      'sms' => array(
        'label' => t('SMS'),
        'admin' => array(
          'path' => 'admin/sms',
          'access arguments' => array('administer sms'),
        ),
      ),
    ),
    // Add views support
    'module' => 'chat',
    'views controller class' => 'SMSEntityViewsController',
  );

  return $info;
}

/**
 * Our custom entity class.
 *
 * The Entity class we're overriding is in
 * sites/all/modules/contrib/entity/includes/entity.inc
 */
class SMSEntity extends Entity {

  /**
   * Override this in order to implement a custom default URI.
   */
  protected function defaultUri() {
    return array('path' => 'sms/' . $this->identifier());
  }

}

/**
 * Callback for /sms/ID page.
 *
 * Just a place to render a complete sms entity.
 */
function smsentity_view_entity($smsid) {
  $sms = entity_load_single('sms', $smsid);
  drupal_set_title($sms->mobile);
  $sms_entity = entity_view('sms', array($smsid => $sms));
  return $sms_entity;
}

class SMSEntityController extends EntityAPIController {

  public function buildContent($entity, $view_mode = 'full', $langcode = NULL) {
    $build = parent::buildContent($entity, $view_mode, $langcode);

    $build['mobile'] = array(
      '#type' => 'markup',
      '#markup' => $entity->mobile,
    );

    $build['message'] = array(
      '#type' => 'markup',
      '#markup' => $entity->message,
    );

    return $build;
  }

  /**
   * Override save method.
   *
   * Populate created and updated dates automatically.
   */
  public function save($entity, DatabaseTransaction $transaction = NULL) {
    if (isset($entity->is_new)) {
      $entity->created_at = REQUEST_TIME;
    }

    $entity->message = trim($entity->message);

    return parent::save($entity, $transaction);
  }

}

/**
 * Check access permissions for sms entities.
 */
function sms_access_callback($op, $sms = NULL, $account = NULL) {
  if (user_access('administer sms', $account)) {
    return TRUE;
  }
  return FALSE;
}

/**
 * Our custom controller for the admin ui.
 *
 * The EntityDefaultUIController can be found in
 * sites/all/modules/contrib/entity/includes/entity.ui.inc
 */
class SMSEntityUIController extends EntityDefaultUIController {

  protected function overviewTableHeaders($conditions, $rows, $additional_header = array()) {
    $header = parent::overviewTableHeaders($conditions, $rows, array('Message', 'Received'));
    return $header;
  }

  protected function overviewTableRow($conditions, $id, $entity, $additional_cols = array()) {
    $diff = time() - $entity->created_at;
    $time_ago = format_interval($diff);
    $row = parent::overviewTableRow($conditions, $id, $entity, array($entity->message, $time_ago));
    // Add your custom data here
    return $row;
  }

}

class SMSEntityViewsController extends EntityDefaultViewsController {

  /**
   *  Add extra fields to views_data().
   */
  public function views_data() {
    $data = parent::views_data();
    // Add your custom data here
    return $data;
  }

}

/**
 * Implements hook_entity_property_info().
 */
function chat_entity_property_info() {
  $info = array();
  $properties = &$info['sms']['properties'];
  $properties['id'] = array(
    'label' => t('SMS ID'),
    'description' => t('The uniquie ID of the sms.'),
    'type' => 'integer',
    'schema field' => 'id',
  );
  $properties['mobile'] = array(
    'label' => t('Mobile No'),
    'description' => t('Mobile No'),
    'type' => 'text',
    'schema field' => 'mobile',
  );
  $properties['message'] = array(
    'label' => t('Embedcode'),
    'description' => t('SMS Message'),
    'type' => 'text',
    'schema field' => 'message',
  );
  $properties['created_at'] = array(
    'label' => t('Created date'),
    'description' => t('Date the SMS was created'),
    'type' => 'date',
    'schema field' => 'created_at',
  );

  return $info;
}