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Drupal example source code file (user.pages.inc)

This example Drupal source code file (user.pages.inc) is included in the DevDaily.com "Drupal Source Code Warehouse" project. The intent of this project is to help you "Learn Drupal by Example".

PHP - Drupal tags/keywords

account, array, description, form, form_state, function, if, name, php, the, timestamp, to, type, user

The user.pages.inc Drupal example source code

<?php
// $Id: user.pages.inc,v 1.78 2010/12/01 00:29:41 webchick Exp $

/**
 * @file
 * User page callback file for the user module.
 */

/**
 * Menu callback; Retrieve a JSON object containing autocomplete suggestions for existing users.
 */
function user_autocomplete($string = '') {
  $matches = array();
  if ($string) {
    $result = db_select('users')->fields('users', array('name'))->condition('name', db_like($string) . '%', 'LIKE')->range(0, 10)->execute();
    foreach ($result as $user) {
      $matches[$user->name] = check_plain($user->name);
    }
  }

  drupal_json_output($matches);
}

/**
 * Form builder; Request a password reset.
 *
 * @ingroup forms
 * @see user_pass_validate()
 * @see user_pass_submit()
 */
function user_pass() {
  global $user;

  $form['name'] = array(
    '#type' => 'textfield',
    '#title' => t('Username or e-mail address'),
    '#size' => 60,
    '#maxlength' => max(USERNAME_MAX_LENGTH, EMAIL_MAX_LENGTH),
    '#required' => TRUE,
  );
  // Allow logged in users to request this also.
  if ($user->uid > 0) {
    $form['name']['#type'] = 'value';
    $form['name']['#value'] = $user->mail;
    $form['mail'] = array(
      '#prefix' => '<p>',
      '#markup' =>  t('Password reset instructions will be mailed to %email. You must log out to use the password reset link in the e-mail.', array('%email' => $user->mail)),
      '#suffix' => '</p>',
    );
  }
  $form['actions'] = array('#type' => 'actions');
  $form['actions']['submit'] = array('#type' => 'submit', '#value' => t('E-mail new password'));

  return $form;
}

function user_pass_validate($form, &$form_state) {
  $name = trim($form_state['values']['name']);
  // Try to load by email.
  $users = user_load_multiple(array(), array('mail' => $name, 'status' => '1'));
  $account = reset($users);
  if (!$account) {
    // No success, try to load by name.
    $users = user_load_multiple(array(), array('name' => $name, 'status' => '1'));
    $account = reset($users);
  }
  if (isset($account->uid)) {
    form_set_value(array('#parents' => array('account')), $account, $form_state);
  }
  else {
    form_set_error('name', t('Sorry, %name is not recognized as a user name or an e-mail address.', array('%name' => $name)));
  }
}

function user_pass_submit($form, &$form_state) {
  global $language;

  $account = $form_state['values']['account'];
  // Mail one time login URL and instructions using current language.
  _user_mail_notify('password_reset', $account, $language);
  watchdog('user', 'Password reset instructions mailed to %name at %email.', array('%name' => $account->name, '%email' => $account->mail));
  drupal_set_message(t('Further instructions have been sent to your e-mail address.'));

  $form_state['redirect'] = 'user';
  return;
}

/**
 * Menu callback; process one time login link and redirects to the user page on success.
 */
function user_pass_reset($form, &$form_state, $uid, $timestamp, $hashed_pass, $action = NULL) {
  global $user;

  // When processing the one-time login link, we have to make sure that a user
  // isn't already logged in.
  if ($user->uid) {
    // The existing user is already logged in.
    if ($user->uid == $uid) {
      drupal_set_message(t('You are logged in as %user. <a href="!user_edit">Change your password.</a>', array('%user' => $user->name, '!user_edit' => url("user/$user->uid/edit"))));
    }
    // A different user is already logged in on the computer.
    else {
      $reset_link_account = user_load($uid);
      if (!empty($reset_link_account)) {
        drupal_set_message(t('Another user (%other_user) is already logged into the site on this computer, but you tried to use a one-time link for user %resetting_user. Please <a href="!logout">logout</a> and try using the link again.',
          array('%other_user' => $user->name, '%resetting_user' => $reset_link_account->name, '!logout' => url('user/logout'))));
      } else {
        // Invalid one-time link specifies an unknown user.
        drupal_set_message(t('The one-time login link you clicked is invalid.'));
      }
    }
    drupal_goto();
  }
  else {
    // Time out, in seconds, until login URL expires. 24 hours = 86400 seconds.
    $timeout = 86400;
    $current = REQUEST_TIME;
    // Some redundant checks for extra security ?
    $users = user_load_multiple(array($uid), array('status' => '1'));
    if ($timestamp <= $current && $account = reset($users)) {
      // No time out for first time login.
      if ($account->login && $current - $timestamp > $timeout) {
        drupal_set_message(t('You have tried to use a one-time login link that has expired. Please request a new one using the form below.'));
        drupal_goto('user/password');
      }
      elseif ($account->uid && $timestamp >= $account->login && $timestamp <= $current && $hashed_pass == user_pass_rehash($account->pass, $timestamp, $account->login)) {
        // First stage is a confirmation form, then login
        if ($action == 'login') {
          watchdog('user', 'User %name used one-time login link at time %timestamp.', array('%name' => $account->name, '%timestamp' => $timestamp));
          // Set the new user.
          $user = $account;
          // user_login_finalize() also updates the login timestamp of the
          // user, which invalidates further use of the one-time login link.
          user_login_finalize();
          drupal_set_message(t('You have just used your one-time login link. It is no longer necessary to use this link to log in. Please change your password.'));
          // Let the user's password be changed without the current password check.
          $token = drupal_hash_base64(drupal_random_bytes(55));
          $_SESSION['pass_reset_' . $user->uid] = $token;
          drupal_goto('user/' . $user->uid . '/edit', array('query' => array('pass-reset-token' => $token)));
        }
        else {
          $form['message'] = array('#markup' => t('<p>This is a one-time login for %user_name and will expire on %expiration_date.</p><p>Click on this button to log in to the site and change your password.</p>', array('%user_name' => $account->name, '%expiration_date' => format_date($timestamp + $timeout))));
          $form['help'] = array('#markup' => '<p>' . t('This login can be used only once.') . '</p>');
          $form['actions'] = array('#type' => 'actions');
          $form['actions']['submit'] = array('#type' => 'submit', '#value' => t('Log in'));
          $form['#action'] = url("user/reset/$uid/$timestamp/$hashed_pass/login");
          return $form;
        }
      }
      else {
        drupal_set_message(t('You have tried to use a one-time login link that has either been used or is no longer valid. Please request a new one using the form below.'));
        drupal_goto('user/password');
      }
    }
    else {
      // Deny access, no more clues.
      // Everything will be in the watchdog's URL for the administrator to check.
      drupal_access_denied();
    }
  }
}

/**
 * Menu callback; logs the current user out, and redirects to the home page.
 */
function user_logout() {
  global $user;

  watchdog('user', 'Session closed for %name.', array('%name' => $user->name));

  module_invoke_all('user_logout', $user);

  // Destroy the current session, and reset $user to the anonymous user.
  session_destroy();

  drupal_goto();
}

/**
 * Process variables for user-profile.tpl.php.
 *
 * The $variables array contains the following arguments:
 * - $account
 *
 * @see user-profile.tpl.php
 */
function template_preprocess_user_profile(&$variables) {
  $account = $variables['elements']['#account'];

  // Helpful $user_profile variable for templates.
  foreach (element_children($variables['elements']) as $key) {
    $variables['user_profile'][$key] = $variables['elements'][$key];
  }

  // Preprocess fields.
  field_attach_preprocess('user', $account, $variables['elements'], $variables);
}

/**
 * Process variables for user-profile-item.tpl.php.
 *
 * The $variables array contains the following arguments:
 * - $element
 *
 * @see user-profile-item.tpl.php
 */
function template_preprocess_user_profile_item(&$variables) {
  $variables['title'] = $variables['element']['#title'];
  $variables['value'] = $variables['element']['#markup'];
  $variables['attributes'] = '';
  if (isset($variables['element']['#attributes'])) {
    $variables['attributes'] = drupal_attributes($variables['element']['#attributes']);
  }
}

/**
 * Process variables for user-profile-category.tpl.php.
 *
 * The $variables array contains the following arguments:
 * - $element
 *
 * @see user-profile-category.tpl.php
 */
function template_preprocess_user_profile_category(&$variables) {
  $variables['title'] = check_plain($variables['element']['#title']);
  $variables['profile_items'] = $variables['element']['#children'];
  $variables['attributes'] = '';
  if (isset($variables['element']['#attributes'])) {
    $variables['attributes'] = drupal_attributes($variables['element']['#attributes']);
  }
}

/**
 * Form builder; edit a user account or one of their profile categories.
 *
 * @ingroup forms
 * @see user_account_form()
 * @see user_account_form_validate()
 * @see user_profile_form_validate()
 * @see user_profile_form_submit()
 * @see user_cancel_confirm_form_submit()
 */
function user_profile_form($form, &$form_state, $account, $category = 'account') {
  global $user;

  // During initial form build, add the entity to the form state for use during
  // form building and processing. During a rebuild, use what is in the form
  // state.
  if (!isset($form_state['user'])) {
    $form_state['user'] = $account;
  }
  else {
    $account = $form_state['user'];
  }

  // @todo Legacy support. Modules are encouraged to access the entity using
  //   $form_state. Remove in Drupal 8.
  $form['#user'] = $account;
  $form['#user_category'] = $category;

  if ($category == 'account') {
    user_account_form($form, $form_state);
    // Attach field widgets.
    field_attach_form('user', $account, $form, $form_state);
  }

  $form['actions'] = array('#type' => 'actions');
  $form['actions']['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Save'),
  );
  if ($category == 'account') {
    $form['actions']['cancel'] = array(
      '#type' => 'submit',
      '#value' => t('Cancel account'),
      '#submit' => array('user_edit_cancel_submit'),
      '#access' => $account->uid > 1 && (($account->uid == $user->uid && user_access('cancel account')) || user_access('administer users')),
    );
  }

  $form['#validate'][] = 'user_profile_form_validate';
  // Add the final user profile form submit handler.
  $form['#submit'][] = 'user_profile_form_submit';

  return $form;
}

/**
 * Validation function for the user account and profile editing form.
 */
function user_profile_form_validate($form, &$form_state) {
  entity_form_field_validate('user', $form, $form_state);
}

/**
 * Submit function for the user account and profile editing form.
 */
function user_profile_form_submit($form, &$form_state) {
  $account = $form_state['user'];
  $category = $form['#user_category'];
  // Remove unneeded values.
  form_state_values_clean($form_state);

  // Before updating the account entity, keep an unchanged copy for use with
  // user_save() later. This is necessary for modules implementing the user
  // hooks to be able to react on changes by comparing the values of $account
  // and $edit.
  $account_unchanged = clone $account;

  entity_form_submit_build_entity('user', $account, $form, $form_state);

  // Populate $edit with the properties of $account, which have been edited on
  // this form by taking over all values, which appear in the form values too.
  $edit = array_intersect_key((array) $account, $form_state['values']);

  user_save($account_unchanged, $edit, $category);
  $form_state['values']['uid'] = $account->uid;

  if ($category == 'account' && !empty($edit['pass'])) {
    // Remove the password reset tag since a new password was saved.
    unset($_SESSION['pass_reset_'. $account->uid]);
  }
  // Clear the page cache because pages can contain usernames and/or profile information:
  cache_clear_all();

  drupal_set_message(t('The changes have been saved.'));
}

/**
 * Submit function for the 'Cancel account' button on the user edit form.
 */
function user_edit_cancel_submit($form, &$form_state) {
  $destination = array();
  if (isset($_GET['destination'])) {
    $destination = drupal_get_destination();
    unset($_GET['destination']);
  }
  // Note: We redirect from user/uid/edit to user/uid/cancel to make the tabs disappear.
  $form_state['redirect'] = array("user/" . $form['#user']->uid . "/cancel", array('query' => $destination));
}

/**
 * Form builder; confirm form for cancelling user account.
 *
 * @ingroup forms
 * @see user_edit_cancel_submit()
 */
function user_cancel_confirm_form($form, &$form_state, $account) {
  global $user;

  $form['_account'] = array('#type' => 'value', '#value' => $account);

  // Display account cancellation method selection, if allowed.
  $default_method = variable_get('user_cancel_method', 'user_cancel_block');
  $admin_access = user_access('administer users');
  $can_select_method = $admin_access || user_access('select account cancellation method');
  $form['user_cancel_method'] = array(
    '#type' => 'item',
    '#title' => ($account->uid == $user->uid ? t('When cancelling your account') : t('When cancelling the account')),
    '#access' => $can_select_method,
  );
  $form['user_cancel_method'] += user_cancel_methods();

  // Allow user administrators to skip the account cancellation confirmation
  // mail (by default), as long as they do not attempt to cancel their own
  // account.
  $override_access = $admin_access && ($account->uid != $user->uid);
  $form['user_cancel_confirm'] = array(
    '#type' => 'checkbox',
    '#title' => t('Require e-mail confirmation to cancel account.'),
    '#default_value' => ($override_access ? FALSE : TRUE),
    '#access' => $override_access,
    '#description' => t('When enabled, the user must confirm the account cancellation via e-mail.'),
  );
  // Also allow to send account canceled notification mail, if enabled.
  $default_notify = variable_get('user_mail_status_canceled_notify', FALSE);
  $form['user_cancel_notify'] = array(
    '#type' => 'checkbox',
    '#title' => t('Notify user when account is canceled.'),
    '#default_value' => ($override_access ? FALSE : $default_notify),
    '#access' => $override_access && $default_notify,
    '#description' => t('When enabled, the user will receive an e-mail notification after the account has been cancelled.'),
  );

  // Prepare confirmation form page title and description.
  if ($account->uid == $user->uid) {
    $question = t('Are you sure you want to cancel your account?');
  }
  else {
    $question = t('Are you sure you want to cancel the account %name?', array('%name' => $account->name));
  }
  $description = '';
  if ($can_select_method) {
    $description = t('Select the method to cancel the account above.');
    foreach (element_children($form['user_cancel_method']) as $element) {
      unset($form['user_cancel_method'][$element]['#description']);
    }
  }
  else {
    // The radio button #description is used as description for the confirmation
    // form.
    foreach (element_children($form['user_cancel_method']) as $element) {
      if ($form['user_cancel_method'][$element]['#default_value'] == $form['user_cancel_method'][$element]['#return_value']) {
        $description = $form['user_cancel_method'][$element]['#description'];
      }
      unset($form['user_cancel_method'][$element]['#description']);
    }
  }

  // Always provide entity id in the same form key as in the entity edit form.
  $form['uid'] = array('#type' => 'value', '#value' => $account->uid);
  return confirm_form($form,
    $question,
    'user/' . $account->uid,
    $description . ' ' . t('This action cannot be undone.'),
    t('Cancel account'), t('Cancel'));
}

/**
 * Submit handler for the account cancellation confirm form.
 *
 * @see user_cancel_confirm_form()
 * @see user_multiple_cancel_confirm_submit()
 */
function user_cancel_confirm_form_submit($form, &$form_state) {
  global $user;
  $account = $form_state['values']['_account'];

  // Cancel account immediately, if the current user has administrative
  // privileges, no confirmation mail shall be sent, and the user does not
  // attempt to cancel the own account.
  if (user_access('administer users') && empty($form_state['values']['user_cancel_confirm']) && $account->uid != $user->uid) {
    user_cancel($form_state['values'], $account->uid, $form_state['values']['user_cancel_method']);

    $form_state['redirect'] = 'admin/people';
  }
  else {
    // Store cancelling method and whether to notify the user in $account for
    // user_cancel_confirm().
    $edit = array(
      'user_cancel_method' => $form_state['values']['user_cancel_method'],
      'user_cancel_notify' => $form_state['values']['user_cancel_notify'],
    );
    $account = user_save($account, $edit);
    _user_mail_notify('cancel_confirm', $account);
    drupal_set_message(t('A confirmation request to cancel your account has been sent to your e-mail address.'));
    watchdog('user', 'Sent account cancellation request to %name %email.', array('%name' => $account->name, '%email' => '<' . $account->mail . '>'), WATCHDOG_NOTICE);

    $form_state['redirect'] = "user/$account->uid";
  }
}

/**
 * Helper function to return available account cancellation methods.
 *
 * See documentation of hook_user_cancel_methods_alter().
 *
 * @return
 *   An array containing all account cancellation methods as form elements.
 *
 * @see hook_user_cancel_methods_alter()
 * @see user_admin_settings()
 * @see user_cancel_confirm_form()
 * @see user_multiple_cancel_confirm()
 */
function user_cancel_methods() {
  $methods = array(
    'user_cancel_block' => array(
      'title' => t('Disable the account and keep its content.'),
      'description' => t('Your account will be blocked and you will no longer be able to log in. All of your content will remain attributed to your user name.'),
    ),
    'user_cancel_block_unpublish' => array(
      'title' => t('Disable the account and unpublish its content.'),
      'description' => t('Your account will be blocked and you will no longer be able to log in. All of your content will be hidden from everyone but administrators.'),
    ),
    'user_cancel_reassign' => array(
      'title' => t('Delete the account and make its content belong to the %anonymous-name user.', array('%anonymous-name' => variable_get('anonymous', t('Anonymous')))),
      'description' => t('Your account will be removed and all account information deleted. All of your content will be assigned to the %anonymous-name user.', array('%anonymous-name' => variable_get('anonymous', t('Anonymous')))),
    ),
    'user_cancel_delete' => array(
      'title' => t('Delete the account and its content.'),
      'description' => t('Your account will be removed and all account information deleted. All of your content will also be deleted.'),
      'access' => user_access('administer users'),
    ),
  );
  // Allow modules to customize account cancellation methods.
  drupal_alter('user_cancel_methods', $methods);

  // Turn all methods into real form elements.
  $default_method = variable_get('user_cancel_method', 'user_cancel_block');
  foreach ($methods as $name => $method) {
    $form[$name] = array(
      '#type' => 'radio',
      '#title' => $method['title'],
      '#description' => (isset($method['description']) ? $method['description'] : NULL),
      '#return_value' => $name,
      '#default_value' => $default_method,
      '#parents' => array('user_cancel_method'),
    );
  }
  return $form;
}

/**
 * Menu callback; Cancel a user account via e-mail confirmation link.
 *
 * @see user_cancel_confirm_form()
 * @see user_cancel_url()
 */
function user_cancel_confirm($account, $timestamp = 0, $hashed_pass = '') {
  // Time out in seconds until cancel URL expires; 24 hours = 86400 seconds.
  $timeout = 86400;
  $current = REQUEST_TIME;

  // Basic validation of arguments.
  if (isset($account->data['user_cancel_method']) && !empty($timestamp) && !empty($hashed_pass)) {
    // Validate expiration and hashed password/login.
    if ($timestamp <= $current && $current - $timestamp < $timeout && $account->uid && $timestamp >= $account->login && $hashed_pass == user_pass_rehash($account->pass, $timestamp, $account->login)) {
      $edit = array(
        'user_cancel_notify' => isset($account->data['user_cancel_notify']) ? $account->data['user_cancel_notify'] : variable_get('user_mail_status_canceled_notify', FALSE),
      );
      user_cancel($edit, $account->uid, $account->data['user_cancel_method']);
      // Since user_cancel() is not invoked via Form API, batch processing needs
      // to be invoked manually and should redirect to the front page after
      // completion.
      batch_process('');
    }
    else {
      drupal_set_message(t('You have tried to use an account cancellation link that has expired. Please request a new one using the form below.'));
      drupal_goto("user/$account->uid/cancel");
    }
  }
  drupal_access_denied();
}

/**
 * Access callback for path /user.
 *
 * Displays user profile if user is logged in, or login form for anonymous
 * users.
 */
function user_page() {
  global $user;
  if ($user->uid) {
    menu_set_active_item('user/' . $user->uid);
    return menu_execute_active_handler(NULL, FALSE);
  }
  else {
    return drupal_get_form('user_login');
  }
}

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