function linkchecker_impersonate_user in Link checker 6.2

Same name and namespace in other branches

1. 7 linkchecker.module \linkchecker_impersonate_user()

Impersonates another user. http://drupal.org/node/287292#comment-3162350

Each time this function is called, the active user is saved and $new_user becomes the active user. Multiple calls to this function can be nested, and session saving will be disabled until all impersonation attempts have been reverted using linkchecker_revert_user().

Parameters

$new_user: User to impersonate, either a UID or a user object.

Return value

Current user object.

See also

linkchecker_revert_user()

3 calls to linkchecker_impersonate_user()

LinkCheckerUserImpersonatingUserTestCase::testLinkCheckerImpersonateUser in tests/linkchecker_extract_links.test

linkchecker_revert_user in ./linkchecker.module

Reverts to the previous user after impersonating.

_linkchecker_status_handling in ./linkchecker.module

Status code handling.

6 string references to 'linkchecker_impersonate_user'

linkchecker_admin_settings_form in includes/linkchecker.admin.inc

@file Administrative page callbacks for the linkchecker module.

linkchecker_admin_settings_form_validate in includes/linkchecker.admin.inc

linkchecker_install in ./linkchecker.install

Implementation of hook_install().

linkchecker_uninstall in ./linkchecker.install

Implementation of hook_uninstall().

linkchecker_update_6217 in ./linkchecker.install

#1450672: Set user 1 as default user to impersonate content updates.

... See full list

File

./linkchecker.module, line 1916

This module periodically check links in given node types, blocks, cck fields, etc.

Code

function linkchecker_impersonate_user($new_user = NULL) {
  global $user;
  static $user_original;
  if (!isset($new_user)) {
    if (isset($user_original) && !empty($user_original)) {

      // Restore the previous user from the stack.
      $user = array_pop($user_original);

      // Re-enable session saving if we are no longer impersonating a user.
      if (empty($user_original)) {
        session_save_session(TRUE);
      }
    }
  }
  else {

    // Push the original user onto the stack and prevent session saving.
    $user_original[] = $user;
    session_save_session(FALSE);
    if (is_numeric($new_user)) {
      $user = user_load($new_user);
    }
    else {
      $user = is_object($new_user) ? $new_user : (object) $new_user;
    }
  }
  return $user;
}