user.pages.inc

<?php


/**
 * @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;
    $form['name'] = array(
        '#type' => 'textfield',
        '#title' => t('Username or e-mail address'),
        '#size' => 60,
        '#maxlength' => max(USERNAME_MAX_LENGTH, EMAIL_MAX_LENGTH),
        '#required' => TRUE,
        '#default_value' => isset($_GET['name']) ? $_GET['name'] : '',
    );
    // Allow logged in users to request this also.
    if ($user->uid > 0) {
        $form['name']['#type'] = 'value';
        $form['name']['#value'] = $user->mail;
        $form['mail'] = array(
            '#prefix' => '<p>',
            // As of https://www.drupal.org/node/889772 the user no longer must log
            // out (if they are still logged in when using the password reset link,
            // they will be logged out automatically then), but this text is kept as
            // is to avoid breaking translations as well as to encourage the user to
            // log out manually at a time of their own choosing (when it will not
            // interrupt anything else they may have been in the middle of doing).
'#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;
}

/**
 * Form validation handler for user_pass().
 *
 * @see user_pass_submit()
 */
function user_pass_validate($form, &$form_state) {
    if (isset($form_state['values']['name']) && !is_scalar($form_state['values']['name'])) {
        form_set_error('name', t('An illegal value has been detected. Please contact the site administrator.'));
        return;
    }
    $user_pass_reset_ip_window = variable_get('user_pass_reset_ip_window', 3600);
    // Do not allow any password reset from the current user's IP if the limit
    // has been reached. Default is 50 attempts allowed in one hour. This is
    // independent of the per-user limit to catch attempts from one IP to request
    // resets for many different user accounts. We have a reasonably high limit
    // since there may be only one apparent IP for all users at an institution.
    if (!flood_is_allowed('pass_reset_ip', variable_get('user_pass_reset_ip_limit', 50), $user_pass_reset_ip_window)) {
        form_set_error('name', t('Sorry, too many password reset attempts from your IP address. This IP address is temporarily blocked. Try again later or <a href="@url">request a new password</a>.', array(
            '@url' => url('user/password'),
        )));
        return;
    }
    // Always register an per-IP event.
    flood_register_event('pass_reset_ip', $user_pass_reset_ip_window);
    $name = trim($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)) {
        // Register user flood events based on the uid only, so they can be cleared
        // when a password is reset successfully.
        $identifier = $account->uid;
        $user_pass_reset_user_window = variable_get('user_pass_reset_user_window', 21600);
        $user_pass_reset_user_limit = variable_get('user_pass_reset_user_limit', 5);
        // Don't allow password reset if the limit for this user has been reached.
        // Default is to allow 5 passwords resets every 6 hours.
        if (!flood_is_allowed('pass_reset_user', $user_pass_reset_user_limit, $user_pass_reset_user_window, $identifier)) {
            form_set_error('name', format_plural($user_pass_reset_user_limit, 'Sorry, there has been more than one password reset attempt for this account. It is temporarily blocked. Try again later or <a href="@url">login with your password</a>.', 'Sorry, there have been more than @count password reset attempts for this account. It is temporarily blocked. Try again later or <a href="@url">login with your password</a>.', array(
                '@url' => url('user/login'),
            )));
            return;
        }
        // Register a per-user event.
        flood_register_event('pass_reset_user', $user_pass_reset_user_window, $identifier);
        form_set_value(array(
            '#parents' => array(
                'account',
            ),
        ), $account, $form_state);
    }
}

/**
 * Form submission handler for user_pass().
 *
 * @see user_pass_validate()
 */
function user_pass_submit($form, &$form_state) {
    global $language;
    $name = $form_state['values']['name'];
    if (isset($form_state['values']['account'])) {
        $account = $form_state['values']['account'];
        // Mail one time login URL and instructions using current language.
        $mail = _user_mail_notify('password_reset', $account, $language);
        if (!empty($mail)) {
            watchdog('user', 'Password reset instructions mailed to %name at %email.', array(
                '%name' => $account->name,
                '%email' => $account->mail,
            ));
        }
    }
    else {
        watchdog('user', 'Password reset form was submitted with an unknown or inactive account: %name.', array(
            '%name' => $name,
        ));
    }
    $password_reset_text = variable_get('user_password_reset_text', t('If %identifier is a valid account, an email will be sent with instructions to reset your password.'));
    drupal_set_message(format_string($password_reset_text, array(
        '%identifier' => $name,
    )));
    $form_state['redirect'] = 'user';
    return;
}

/**
 * Menu callback; process one time login link and redirects to the user page on success.
 *
 * In order to never disclose password reset hashes via referrer headers or
 * web browser history, this function always issues a redirect when a valid
 * password reset hash is in the URL.
 */
function user_pass_reset($form, &$form_state, $uid, $timestamp, $hashed_pass, $action = NULL) {
    global $user;
    // Check for a reset hash in the session. Immediately remove it (to prevent it
    // from being reused, for example if this page is visited again via the
    // browser history) and store it for later use.
    if (isset($_SESSION['pass_reset_hash'])) {
        $session_reset_hash = $_SESSION['pass_reset_hash'];
        unset($_SESSION['pass_reset_hash']);
    }
    else {
        $session_reset_hash = NULL;
    }
    // When processing the one-time login link, we have to make sure that a user
    // isn't already logged in.
    if ($user->uid) {
        // The existing user is already logged in. Log them out and reload the
        // current page so the password reset process can continue.
        if ($user->uid == $uid) {
            // Preserve the current destination (if any) and ensure the redirect goes
            // back to the current page; any custom destination set in
            // hook_user_logout() and intended for regular logouts would not be
            // appropriate here.
            $destination = array();
            if (isset($_GET['destination'])) {
                $destination = drupal_get_destination();
            }
            user_logout_current_user();
            unset($_GET['destination']);
            drupal_goto(current_path(), array(
                'query' => drupal_get_query_parameters() + $destination,
            ));
        }
        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'),
                )), 'warning');
            }
            else {
                // Invalid one-time link specifies an unknown user.
                drupal_set_message(t('The one-time login link you clicked is invalid.'), 'error');
            }
            drupal_goto();
        }
    }
    else {
        // Time out, in seconds, until login URL expires. Defaults to 24 hours =
        // 86400 seconds.
        $timeout = variable_get('user_password_reset_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.'), 'error');
                drupal_goto('user/password');
            }
            // Validate the reset hash from the URL or from the session.
            $is_valid = FALSE;
            if ($account->uid && $timestamp >= $account->login && $timestamp <= $current) {
                // If the reset hash in the URL is valid, put it in the session and
                // redirect to the same URL but with the hash replaced by an invalid
                // one ("confirm"). This prevents disclosing the hash via referrer
                // headers or web browser history.
                if ($hashed_pass == user_pass_rehash($account->pass, $timestamp, $account->login, $account->uid, $account->mail)) {
                    if ($action === 'login') {
                        // The 'login' action redirects directly to the user edit form.
                        $is_valid = TRUE;
                    }
                    else {
                        $_SESSION['pass_reset_hash'] = $hashed_pass;
                        $args = arg();
                        foreach ($args as &$arg) {
                            if ($arg == $hashed_pass) {
                                $arg = 'confirm';
                            }
                        }
                        $path = implode('/', $args);
                        drupal_goto($path, array(
                            'query' => drupal_get_query_parameters(),
                        ));
                    }
                }
                elseif ($session_reset_hash && $session_reset_hash == user_pass_rehash($account->pass, $timestamp, $account->login, $account->uid, $account->mail)) {
                    $is_valid = TRUE;
                }
            }
            if ($is_valid) {
                // First stage is a confirmation form, then login
                if ($action == 'login') {
                    // 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();
                    // Clear any password reset flood events for this user.
                    flood_clear_event('pass_reset_user', $account->uid);
                    watchdog('user', 'User %name used one-time login link at time %timestamp.', array(
                        '%name' => $account->name,
                        '%timestamp' => $timestamp,
                    ));
                    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_random_key();
                    $_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}/{$timestamp}/{$session_reset_hash}/login");
                    // Prevent the browser from storing this page so that the token will
                    // not be visible in the form action if the back button is used to
                    // revisit this page.
                    drupal_add_http_header('Cache-Control', 'no-store');
                    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.'), 'error');
                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();
            drupal_exit();
        }
    }
}

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

/**
 * Logs the current user out.
 */
function user_logout_current_user() {
    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();
}

/**
 * Process variables for user-profile.tpl.php.
 *
 * @param array $variables
 *   An associative array containing:
 *   - elements: An associative array containing the user information and any
 *     fields attached to the user. Properties used:
 *     - #account: The user account of the profile being viewed.
 *
 * @see user-profile.tpl.php
 */
function template_preprocess_user_profile(&$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.
        $langcode = entity_language('user', $account);
        field_attach_form('user', $account, $form, $form_state, $langcode);
    }
    $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;
}

/**
 * Form validation handler for user_profile_form().
 *
 * @see user_profile_form_submit()
 */
function user_profile_form_validate($form, &$form_state) {
    entity_form_field_validate('user', $form, $form_state);
}

/**
 * Form submission handler for user_profile_form().
 *
 * @see user_profile_form_validate()
 */
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.
    $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, $account->uid, $account->mail)) {
            $edit = array(
                'user_cancel_notify' => isset($account->data['user_cancel_notify']) ? $account->data['user_cancel_notify'] : variable_get('user_mail_status_canceled_notify', FALSE),
            );
            user_cancel($edit, $account->uid, $account->data['user_cancel_method']);
            // Since user_cancel() is not invoked via Form API, batch processing needs
            // to be invoked manually and should redirect to the front page after
            // completion.
            batch_process('');
        }
        else {
            drupal_set_message(t('You have tried to use an account cancellation link that has expired. Please request a new one using the form below.'), 'error');
            drupal_goto("user/{$account->uid}/cancel");
        }
    }
    return MENU_ACCESS_DENIED;
}

/**
 * Page callback: Displays the user page.
 *
 * Displays user profile if user is logged in, or login form for anonymous
 * users.
 *
 * @return
 *   A render array for either a user profile or a login form.
 *
 * @see user_view_page()
 * @see user_login()
 */
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');
    }
}