/**
* Helper to evaluate xpath and return matching elements as direct paths for javascript side to highlight them
*/
public function evaluate()
{
if (!PMXI_Plugin::getInstance()->getAdminCurrentScreen()->is_ajax) {
// call is only valid when send with ajax
wp_redirect(add_query_arg('action', 'element', $this->baseUrl));
die;
}
// HTTP headers for no cache etc
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
$xpath = new DOMXPath($this->data['dom']);
$post = $this->input->post(array('xpath' => '', 'show_element' => 1, 'root_element' => PMXI_Plugin::$session->source['root_element'], 'delimiter' => '', 'is_csv' => 0));
$wp_uploads = wp_upload_dir();
if (!check_ajax_referer('wp_all_import_secure', 'security', false)) {
$this->errors->add('form-validation', __('Security check', 'wp_all_import_plugin'));
} elseif ('' == $post['xpath']) {
$this->errors->add('form-validation', __('Your XPath is empty.<br/><br/>Please enter an XPath expression, or click "get default XPath" to get the default XPath.', 'wp_all_import_plugin'));
} else {
$source = PMXI_Plugin::$session->get('source');
// counting selected elements
if ('' != $post['delimiter'] and $post['delimiter'] != PMXI_Plugin::$session->is_csv) {
include_once PMXI_Plugin::ROOT_DIR . '/libraries/XmlImportCsvParse.php';
PMXI_Plugin::$session->set('is_csv', $post['delimiter']);
wp_all_import_remove_source(PMXI_Plugin::$session->filePath, false);
$csv = new PMXI_CsvParser(array('filename' => PMXI_Plugin::$session->get('csv_path'), 'xpath' => '', 'delimiter' => $post['delimiter'], 'targetDir' => rtrim(str_replace(basename(PMXI_Plugin::$session->filePath), '', PMXI_Plugin::$session->filePath), '/')));
$filePath = $csv->xml_path;
PMXI_Plugin::$session->set('filePath', $filePath);
PMXI_Plugin::$session->set('local_paths', array($filePath));
}
// counting selected elements
PMXI_Plugin::$session->set('xpath', $post['xpath']);
$current_xpath = '';
if ($post['show_element'] == 1) {
PMXI_Plugin::$session->set('count', $this->data['node_list_count'] = 0);
} else {
$this->data['node_list_count'] = PMXI_Plugin::$session->count;
}
$xpath_elements = explode('[', $post['xpath']);
$xpath_parts = explode('/', $xpath_elements[0]);
$source['root_element'] = $xpath_parts[1];
PMXI_Plugin::$session->set('source', $source);
PMXI_Plugin::$session->save_data();
$loop = 0;
foreach (PMXI_Plugin::$session->local_paths as $key => $path) {
$file = new PMXI_Chunk($path, array('element' => $source['root_element'], 'encoding' => PMXI_Plugin::$session->encoding));
// loop through the file until all lines are read
while ($xml = $file->read()) {
if (!empty($xml)) {
PMXI_Import_Record::preprocessXml($xml);
$xml = "<?xml version=\"1.0\" encoding=\"" . PMXI_Plugin::$session->encoding . "\"?>" . "\n" . $xml;
$dom = new DOMDocument('1.0', PMXI_Plugin::$session->encoding);
$old = libxml_use_internal_errors(true);
$dom->loadXML($xml);
libxml_use_internal_errors($old);
$xpath = new DOMXPath($dom);
if ($elements = @$xpath->query($post['xpath']) and $elements->length) {
if ($post['show_element'] == 1) {
$this->data['node_list_count'] += $elements->length;
PMXI_Plugin::$session->set('count', $this->data['node_list_count']);
if (!$loop) {
$this->data['dom'] = $dom;
}
}
$loop += $elements->length;
if ($post['show_element'] > 1 and $loop == $post['show_element']) {
$this->data['dom'] = $dom;
break 2;
}
unset($dom, $xpath, $elements);
}
}
}
unset($file);
}
if (!$this->data['node_list_count']) {
$this->errors->add('form-validation', __('There are no elements to import based on your XPath.<br/><br/>If you are in Step 2, you probably specified filtering options that don’t match any elements present in your file.<br/>If you are seeing this error elsewhere, it means that while the XPath expression for your initial import matched some elements in your file previously, there are now zero elements in the file that match this expression.<br/>You can edit the XPath for your import by going to the Manage Imports -> Import Settings page.', 'wp_all_import_plugin'));
}
}
PMXI_Plugin::$session->save_data();
$this->data['is_csv'] = $post['is_csv'];
ob_start();
if (!$this->errors->get_error_codes()) {
$xpath = new DOMXPath($this->data['dom']);
$this->data['elements'] = $elements = @$xpath->query($post['xpath']);
// prevent parsing warning to be displayed
$paths = array();
$this->data['paths'] =& $paths;
if (PMXI_Plugin::getInstance()->getOption('highlight_limit') and $elements->length <= PMXI_Plugin::getInstance()->getOption('highlight_limit')) {
foreach ($elements as $el) {
if (!$el instanceof DOMElement) {
continue;
}
$p = PMXI_Render::get_xml_path($el, $xpath) and $paths[] = $p;
}
}
$this->render();
} else {
$this->error();
}
$html = ob_get_clean();
ob_start();
if (!empty($elements->length)) {
PMXI_Render::render_xml_elements_for_filtring($elements->item(0));
}
$render_element = ob_get_clean();
exit(json_encode(array('result' => true, 'html' => $html, 'root_element' => $source['root_element'], 'count' => $this->data['node_list_count'], 'render_element' => $render_element)));
}
</th>
<th><?php
_e('Value', 'wp_all_import_plugin');
?>
</th>
<th> </th>
</tr>
<tr>
<td style="width:25%;">
<select id="pmxi_xml_element">
<option value=""><?php
_e('Select Element', 'wp_all_import_plugin');
?>
</option>
<?php
PMXI_Render::render_xml_elements_for_filtring($elements->item(0));
?>
</select>
</td>
<td style="width:25%;">
<select id="pmxi_rule">
<option value=""><?php
_e('Select Rule', 'wp_all_import_plugin');
?>
</option>
<option value="equals"><?php
_e('equals', 'wp_all_import_plugin');
?>
</option>
<option value="not_equals"><?php
_e('not equals', 'wp_all_import_plugin');
