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root / drupal7 / sites / all / modules / acl / acl.admin.inc @ cfceb792

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<?php
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/**
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 * @file
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 * Implementations of administration functions for the acl module.
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 */
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/**
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 * Implementation of acl_get_usernames().
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 */
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function _acl_get_usernames($acl_id) {
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  $users = array();
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  $result = db_query("SELECT u.uid, u.name FROM {users} u LEFT JOIN {acl_user} aclu ON aclu.uid = u.uid WHERE acl_id = :acl_id", array(
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    'acl_id' => $acl_id));
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  foreach ($result as $user) {
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    $users[$user->uid] = _acl_format_username($user);
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  }
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  return $users;
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}
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/**
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 * Implementation of acl_edit_form().
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 */
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function _acl_edit_form($acl_id, $label = NULL, $new_acl = FALSE) {
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  $users = array();
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  if (!$new_acl) {
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    // Ensure the ACL in question even exists.
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    if (!($record = db_query("SELECT name, number FROM {acl} WHERE acl_id = :acl_id", array(
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      'acl_id' => $acl_id,
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    ))->fetchAssoc())) {
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      return array();
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    }
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    $users = _acl_get_usernames($acl_id);
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  }
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  if (!isset($label)) {
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    $label = (isset($record['name']) ? $record['name'] : (isset($record['number']) ? $record['number'] : $acl_id));
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  }
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  $form = array(
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    '#type' => 'fieldset',
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    '#collapsible' => TRUE,
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    '#title' => check_plain($label),
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    '#tree' => TRUE,
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  );
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  $form['acl_id'] = array(
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    '#type' => 'value',
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    '#value' => $acl_id,
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  );
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  $form['deletions'] = array(
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    '#type' => 'checkboxes',
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    '#options' => array(),
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  ); // placeholder
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  $form['delete_button'] = array(
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    '#type' => 'button',
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    '#name' => 'acl_' . $acl_id,
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    '#value' => t('Remove Checked'),
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    '#submit' => FALSE,
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  );
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  $form['add'] = array(
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    '#type' => 'textfield',
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    '#title' => t('Add user'),
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    '#maxlength' => 60,
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    '#size' => 40,
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    '#autocomplete_path' => 'user/autocomplete',
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  );
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  $form['add_button'] = array(
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    '#type' => 'button',
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    '#name' => 'acl_' . $acl_id,
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    '#value' => t('Add User'),
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    '#submit' => FALSE,
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  );
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  $form['user_list'] = array(
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    '#type' => 'hidden',
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    '#default_value' => serialize($users),
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  );
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  $form['#after_build'] = array('_acl_edit_form_after_build');
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  return $form;
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}
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/**
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 * Process a form that had our buttons on it.
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 */
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function _acl_edit_form_after_build($form, &$form_state) {
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  // We can't use the form values because it's the entire structure
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  // and we have no clue where our values actually are. That's
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  // ok tho cause #value still works for us.
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  $user_list = acl_edit_form_get_user_list($form);
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  if (isset($form_state['triggering_element']) && $form_state['triggering_element']['#value'] == $form['delete_button']['#value']) {
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    $deletions = $form['deletions']['#value'];
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    foreach ($deletions as $uid) {
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      unset($user_list[$uid]);
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      unset($form['deletions']['#value'][$uid]);
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    }
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  }
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  elseif (isset($form_state['triggering_element']) && $form_state['triggering_element']['#value'] == $form['add_button']['#value'] && !empty($form['add']['#value'])) {
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    $user = db_query("SELECT uid, name FROM {users} WHERE name = :name", array(
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      'name' => $form['add']['#value'],
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    ))->fetchObject();
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    if (!$user) {
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      form_error($form['add'], t("Invalid user specified."));
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    }
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    else {
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      $user_list[$user->uid] = _acl_format_username($user);
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      $form['add']['#value'] = NULL;
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    }
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  }
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  if (count($user_list) != 0) {
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    $form['deletions']['#type'] = 'checkboxes';
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    $form['deletions']['#title'] = t("Current users");
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    $form['deletions']['#options'] = $user_list;
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    $form['deletions']['#value'] = array(); // don't carry value through.
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    $form['deletions'] = form_builder(!empty($form['#post']) ? $form['#post']['form_id'] : 'acl_form', $form['deletions'], $form_state);
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  }
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  else {
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    $form['delete_button']['#type'] = 'value';
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  }
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  $form['user_list']['#value'] = serialize($user_list);
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  return $form;
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}
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/**
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 * Write the results of a form.
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 *
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 * The module that embedded our form must call this function!
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 */
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function acl_save_form($form, $priority = NULL) {
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  $users = acl_edit_form_get_user_list($form);
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  db_delete('acl_user')
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    ->condition('acl_id', $form['acl_id'])
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    ->execute();
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  foreach ($users as $uid => $name) {
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    db_insert('acl_user')
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    ->fields(array(
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      'acl_id' => $form['acl_id'],
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      'uid' => $uid,
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    ))
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    ->execute();
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  }
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  if (isset($priority)) {
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    db_update('acl_node')
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      ->fields(array(
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        'priority' => $priority,
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      ))
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      ->condition('acl_id', $form['acl_id'])
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      ->execute();
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  }
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}
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/**
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 * Decode and return the list of users.
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 *
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 * @param array $form
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 *   The ACL form or form_state array.
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 * @param bool $get_default
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 *   (optional) In the case of a form array, whether to return the
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 *   '#default_value' (or the '#value').
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 *
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 * @return array
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 *   An array of $uid => $username.
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 */
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function acl_edit_form_get_user_list($form, $get_default = FALSE) {
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  if (is_array($form['user_list'])) {
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    return unserialize($form['user_list'][$get_default ? '#default_value' : '#value']);
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  }
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  return unserialize($form['user_list']);
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}
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