hpdl
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<?php
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/*
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$Id: navigation_history.php 5 2005-01-31 01:40:15Z hpdl $
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osCommerce, Open Source E-Commerce Solutions
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http://www.oscommerce.com
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Copyright (c) 2003 osCommerce
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Released under the GNU General Public License
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*/
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class navigationHistory {
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var $path, $snapshot, $set_global;
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function navigationHistory() {
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$this->reset();
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$this->setGlobal();
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}
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function reset() {
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$this->path = array();
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$this->snapshot = array();
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}
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function add_current_page() {
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if (PHP_VERSION < 4.1) {
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global $_SERVER;
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}
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global $request_type, $cPath;
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if ($this->set_global) {
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global $_GET, $_POST;
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}
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$set = 'true';
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for ($i=0, $n=sizeof($this->path); $i<$n; $i++) {
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if ($this->path[$i]['page'] == basename($_SERVER['PHP_SELF'])) {
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if (isset($cPath)) {
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if (!isset($this->path[$i]['get']['cPath'])) {
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continue;
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} else {
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if ($this->path[$i]['get']['cPath'] == $cPath) {
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array_splice($this->path, ($i+1));
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$set = 'false';
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break;
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} else {
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$old_cPath = explode('_', $this->path[$i]['get']['cPath']);
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$new_cPath = explode('_', $cPath);
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for ($j=0, $n2=sizeof($old_cPath); $j<$n2; $j++) {
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if ($old_cPath[$j] != $new_cPath[$j]) {
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array_splice($this->path, ($i));
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$set = 'true';
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break 2;
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}
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}
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}
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}
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} else {
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array_splice($this->path, $i);
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$set = 'true';
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break;
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}
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}
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}
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if ($set == 'true') {
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$this->path[] = array('page' => basename($_SERVER['PHP_SELF']),
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'mode' => $request_type,
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'get' => $_GET,
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'post' => $_POST);
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}
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}
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function remove_current_page() {
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if (PHP_VERSION < 4.1) {
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global $_SERVER;
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}
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$last_entry_position = sizeof($this->path) - 1;
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if ($this->path[$last_entry_position]['page'] == basename($_SERVER['PHP_SELF'])) {
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unset($this->path[$last_entry_position]);
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}
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}
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function set_snapshot($page = '') {
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if (PHP_VERSION < 4.1) {
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global $_SERVER;
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}
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global $request_type;
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if ($this->set_global) {
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global $_GET, $_POST;
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}
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if (is_array($page)) {
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$this->snapshot = array('page' => $page['page'],
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'mode' => $page['mode'],
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'get' => $page['get'],
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'post' => $page['post']);
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} else {
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$this->snapshot = array('page' => basename($_SERVER['PHP_SELF']),
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'mode' => $request_type,
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'get' => $_GET,
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'post' => $_POST);
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}
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}
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function clear_snapshot() {
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$this->snapshot = array();
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}
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function set_path_as_snapshot($history = 0) {
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$pos = (sizeof($this->path)-1-$history);
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$this->snapshot = array('page' => $this->path[$pos]['page'],
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'mode' => $this->path[$pos]['mode'],
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'get' => $this->path[$pos]['get'],
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'post' => $this->path[$pos]['post']);
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}
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function setGlobal() {
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$this->set_global = (PHP_VERSION < 4.1) ? true : false;
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}
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function debug() {
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global $osC_Session;
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for ($i=0, $n=sizeof($this->path); $i<$n; $i++) {
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echo $this->path[$i]['page'] . '?';
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while (list($key, $value) = each($this->path[$i]['get'])) {
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echo $key . '=' . $value . '&';
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}
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if (sizeof($this->path[$i]['post']) > 0) {
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echo '<br>';
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while (list($key, $value) = each($this->path[$i]['post'])) {
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echo ' <b>' . $key . '=' . $value . '</b><br>';
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}
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}
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echo '<br>';
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}
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if (sizeof($this->snapshot) > 0) {
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echo '<br><br>';
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echo $this->snapshot['mode'] . ' ' . $this->snapshot['page'] . '?' . tep_array_to_string($this->snapshot['get'], array($osC_Session->name)) . '<br>';
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}
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}
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}
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?>
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