<?php

/**
 * @file
 * Install and uninstall hooks for Module Grants module
 */

/**
 * Implementation of hook_install().
 */
function module_grants_install() {
/*
  _set_default_permissions('authenticated user', module_grants_monitor_perm());
  if (variable_get('smart_tabs_include_pages', '*') == '*') {
    // Initially restrict Smart tabs to Accessible content page only
    variable_set('smart_tabs_include_pages', "accessible-content\raccessible-content/*");
  }
 */
}

/**
 * Implementation of hook_uninstall().
 * I'm not convinced that deleting these is a good thing, as these will have
 * to be flicked back on when re-installing.
 */
function module_grants_uninstall() {
  variable_del('module_grants_lenient');
  variable_del('module_grants_OR_modules');
  variable_del('show_taxonomy_terms');
}

function _set_default_permissions($role_name, $permissions) {
  if (!is_array($permissions)) {
    return;
  }
  $role = db_fetch_object(db_query("SELECT p.rid, perm FROM {permission} p INNER JOIN {role} r ON p.rid=r.rid WHERE r.name='%s'", $role_name));
  if ($role) {
    $added_perms = $role->perm;
    foreach ($permissions as $perm) {
      if (strpos($role->perm, $perm) === FALSE) {
        $added_perms .= ", $perm";
      }
    }
    if ($added_perms != $role->perm) { // some perms added
      db_query("UPDATE {permission} SET perm='%s' WHERE rid=%d", $added_perms, $role->rid);
    }
  }
}

/**
 * Rename permissions. Core doesn't support apostrophes so strip these out and
 * capitalise the permission name for readibility.
 * Example: "access 'I can edit' tab" is transformed to "access I Can Edit tab".
 * See [#566290], [#572804].
 */
function module_grants_update_6207() {
  $ret = array();
  // permission.perm column contains a comma-separated string of permissions
  $result = db_query("SELECT rid,perm FROM {permission} WHERE perm LIKE '%access \'%\' tab%'");
  while ($permissions = db_fetch_object($result)) {
    // See http://www.php.net/manual/en/function.preg-replace-callback.php
    // Note: using create_function() as PHP 5.2 does not support closures (anonymous functions)
    $sanitized_permissions = preg_replace_callback("/access \'([A-Z a-z]+)\' tab/",
      create_function('$matches', 'return "access ". ucwords($matches[1]) ." tab";'),
      $permissions->perm);
    $ret[] = update_sql("UPDATE {permission} SET perm='". db_escape_string($sanitized_permissions) ."' WHERE rid=$permissions->rid");
  }
  return $ret;
}