ding_user_consent_token.module

<?php
/**
 * @file
 * Ding user consent token functionality.
 */

/**
 * ding_user_consent_token_quick_accept form builder
 */
function ding_user_consent_token_quick_accept($form, &$form_state) {
  global $user;
  $account = (isset($form_state['user'])) ? $form_state['user'] : NULL;
  if (!isset($account)) {
    $account = $user;
  }
  if (ding_user_is_provider_user($account)) {
    $consent_id = (isset($form_state['consent_id'])) ? $form_state['consent_id'] : 'loan_history_store';
    // Try to get the user consent
    try {
      $consent = ding_user_consent_get_consent($consent_id);
    }
    catch (Exception $e) {
      // Catch the DingProviderConsentException, which is thrown if the user has been presented with the 
      // consent options yet or if the user has denied consent but consent is required for this type.
      $consent = NULL;
    }
    // If the user is valid but hasn't given consent, present a submit form which allows the user to instantly
    // give consent.
    if (!$consent) {
      $html_id = drupal_html_id('ding-user-consent-submit');
      
      $form['ding_user_consent_submit'] = array(
        '#type' => 'submit',
        '#value' => t('Allow storage of loans and other personal data'),
        '#attributes' => array('id' => $html_id),
        '#ajax' => array(
          'callback' => 'ding_user_consent_token_quick_accept_callback',
          'wrapper' => $html_id,
          'method' => 'replace',
          'effect' => 'fade',
        ),
      );
      // In case the hide description state is not set, display a short description of this form.
      if (!isset($form_state['hide_description']) || !$form_state['hide_description']) {
        $description = variable_get($consent_id . '_description_token', '');
        $description = (is_array($description)) ? $description['value'] : $description;
        $form['ding_user_consent'] = array(
          '#type' => 'item',
          '#markup' => $description,
        );
      }
    }
    else {
      // if consent has been given display a short message.
      $description = variable_get($consent_id . '_description_token_given', '');
      $description = (is_array($description)) ? $description['value'] : $description;
      $form['ding_user_consent'] = array(
        '#type' => 'item',
        '#prefix' => '<span class="consent-given-icon"></span>',
        '#markup' => token_replace($description, array('user' => $account)),
      );
    }
  }
  else {
    // Provide a link to login before allowing her to give consent.
    $form['ding_user_consent'] = array(
      '#type' => 'item',
      '#markup' => t('Please !login as a user of the library to use this function', array('!login' => l(t('login'), 'user'))),
    );
  }
  
  return $form;
}

/**
 * Submit function for ding_user_consent_token_quick_accept_submit form submit
 */
function ding_user_consent_token_quick_accept_submit($form, &$form_state) {
  global $user;
  if (!empty($form['#user'])) {
    $account = $form['#user'];
  } else {
    $account = $user;
  }
  $consent_id = (isset($form_state['consent_id'])) ? $form_state['consent_id'] : 'loan_history_store';
  $result = ding_provider_invoke('user_consent', 'add', $account, $consent_id, 1);
  if ($result) {
    if (empty($account->data['consent']) || !isset($account->data['consent'])) {
      $su = clone $account;
      $auth_res['user']['data'] = array('consent' => 1);
      ding_user_update_user($auth_res, $su);
    }
    drupal_set_message(t('Thank you for allowing us to store your personal data.'));
    module_invoke_all('ding_user_consent_changed', array($consent_id => 1));
  }
}

/**
 * Submit function for ding_user_consent_token_quick_accept_callback
 */
function ding_user_consent_token_quick_accept_callback($form, $form_state) {
  $description = variable_get($consent_id . '_description_token_given', '');
  $description = (is_array($description)) ? $description['value'] : $description;
  $return = array();
  $return['ding_user_consent'] = array(
    '#type' => 'item',
    '#prefix' => '<span class="consent-given-icon"></span>',
    '#markup' => $description,
  );
  return $return;
}

/**
 * Implements hook_token_info().
 */
function ding_user_consent_token_token_info() {
  $type = array(
    'name' => t('Ding user consent'), 
    'description' => t('Tokens related to user consent.'), 
  );

  // Core tokens for nodes.
  $consent['consent'] = array(
    'name' => t("User consent status"), 
    'description' => t("The states of the current users consent settings."),
  );

  return array(
    'types' => array('ding_user_consent' => $type), 
    'tokens' => array('ding_user_consent' => $consent),
  );
}

/**
 * Implements hook_tokens
 */
function ding_user_consent_token_tokens($type, $tokens, array $data = array(), array $options = array()) {
  $url_options = array('absolute' => TRUE);
  if (isset($options['language'])) {
    $url_options['language'] = $options['language'];
    $language_code = $options['language']->language;
  }
  else {
    $language_code = NULL;
  }
  $sanitize = !empty($options['sanitize']);

  $replacements = array();

  if ($type == 'ding_user_consent') {

    foreach ($tokens as $name => $original) {
      $args = explode(':', $name);
      $consent_id = (isset($args[1])) ? $args[1] : 'loan_history_store';
      
      $form_state = array('consent_id' => $consent_id);
      if(isset($args[2])) {
        switch ($args[2]) {
          // Simple key values on the node.
          case 'accept':
            $form_state += array('hide_description' => TRUE);
            break;
        }
      }
      $form = drupal_build_form('ding_user_consent_token_quick_accept', $form_state);
      $consent_form = drupal_render($form);
      
      $replacements[$original] = $consent_form;
    }
  }

  return $replacements;
}