function admin_screen()
{
$searches = \Pressbooks\Modules\SearchAndReplace\Search::get_searches();
if (isset($_POST['search_pattern']) && !wp_verify_nonce($_POST['pressbooks-search-and-replace-nonce'], 'search')) {
return;
}
$search_pattern = $replace_pattern = '';
if (isset($_POST['search_pattern'])) {
$search_pattern = stripslashes($_POST['search_pattern']);
}
if (isset($_POST['replace_pattern'])) {
$replace_pattern = stripslashes($_POST['replace_pattern']);
}
$search_pattern = str_replace("\\'", "'", $search_pattern);
$replace_pattern = str_replace("\\'", "'", $replace_pattern);
$orderby = 'asc';
if (isset($_POST['orderby']) && 'desc' === $_POST['orderby']) {
$orderby = 'desc';
}
$limit = isset($_POST['limit']) ? intval($_POST['limit']) : 0;
$offset = 0;
$source = isset($_POST['source']) ? stripslashes($_POST['source']) : '';
if (\Pressbooks\Modules\SearchAndReplace\Search::valid_search($source) && (isset($_POST['search']) || isset($_POST['replace']) || isset($_POST['replace_and_save']))) {
$searcher = new $source();
// Make sure no one sneaks in with a replace
if (!current_user_can('administrator')) {
unset($_POST['replace']);
unset($_POST['replace_and_save']);
$_POST['search'] = 'search';
}
$results = array();
if (isset($_POST['search'])) {
$results = $searcher->search_for_pattern($search_pattern, $limit, $offset, $orderby);
} elseif (isset($_POST['replace'])) {
$results = $searcher->search_and_replace($search_pattern, $replace_pattern, $limit, $offset, $orderby);
} elseif (isset($_POST['replace_and_save'])) {
$results = $searcher->search_and_replace($search_pattern, $replace_pattern, $limit, $offset, $orderby, true);
}
if (!is_array($results)) {
$this->render_error($results);
} elseif (isset($_POST['replace_and_save'])) {
?>
<div class="updated" id="message" onclick="this.parentNode.removeChild (this)">
<p><?php
printf(_n('%d occurrence replaced.', '%d occurrences replaced.', count($results)), count($results));
?>
</p>
</div>
<?php
}
$this->render('search', array('search' => $search_pattern, 'replace' => $replace_pattern, 'searches' => $searches, 'source' => $source));
if (is_array($results) && !isset($_POST['replace_and_save'])) {
$this->render('results', array('search' => $searcher, 'results' => $results));
}
} else {
$this->render('search', array('search' => $search_pattern, 'replace' => $replace_pattern, 'searches' => $searches, 'source' => $source));
}
}
static function valid_search($class)
{
$classes = \Pressbooks\Modules\SearchAndReplace\Search::get_searches();
foreach ($classes as $item) {
if (strcasecmp(get_class($item), $class) === 0) {
return true;
}
}
return false;
}