432 lines
12 KiB
PHP
432 lines
12 KiB
PHP
<?php
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// File name: callform.inc.php
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// Description: PHP subroutine to do API between scripts
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// Date: 2002-11-11
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// Author: imacat <imacat@pristine.com.tw>
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// Copyright: Copyright (C) 2002-2007 Pristine Communications
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// Set the include path
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if (!defined("INCPATH_SET")) {
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require_once dirname(__FILE__) . "/incpath.inc.php";
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}
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// Referenced subroutines
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require_once "monica/addget.inc.php";
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require_once "monica/cgiemu.inc.php";
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require_once "monica/formfunc.inc.php";
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require_once "monica/formreg.inc.php";
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require_once "monica/http.inc.php";
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require_once "monica/newsn.inc.php";
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require_once "monica/requri.inc.php";
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require_once "monica/userhome.inc.php";
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// Settings
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define("FORMID_LEN", 9);
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register_form("FORM_THIS", _callform_form_this());
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register_form("FORM_USERS", "/admin/users.php");
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register_form("FORM_GROUPS", "/admin/groups.php");
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register_form("FORM_USERMEM", "/admin/usermem.php");
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register_form("FORM_GROUPMEM", "/admin/groupmem.php");
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register_form("FORM_USERPREF", "/admin/userpref.php");
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register_form("FORM_SCPTPRIV", "/admin/scpptpriv.php");
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register_form("FORM_PIC", "/admin/pic.php");
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register_form("FORM_PAGES", "/admin/pages.php");
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register_form("FORM_NEWS", "/admin/news.php");
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register_form("FORM_LINKCAT", "/admin/linkcat.php");
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register_form("FORM_LINKS", "/admin/links.php");
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if (!defined("USE_SUSPEND_FORM")) {
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define("USE_SUSPEND_FORM", true);
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}
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// call_form: Suspend the current form and call another selection form
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function call_form($form, $args, $import_func)
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{
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// Only work for defined forms
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if (is_null(get_registered_form($form))) {
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trigger_error("Calling undefined form \"$form\".\n", E_USER_ERROR);
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}
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// Record the selection import function
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if (!is_null($import_func)) {
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// Obtain the form
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$FORM =& get_or_post();
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$FORM["import_func"] = $import_func;
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}
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// Suspend the current form
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$formid = suspend_form();
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// Base URL
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$url = get_registered_form($form);
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// Initialize as an empty array
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if (is_null($args)) {
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$args = array();
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}
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// Add the caller
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$args[] = "caller=" . urlencode(REQUEST_PATH);
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// Add the caller form ID
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$args[] = "cformid=" . urlencode($formid);
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// Redirect
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http_303($url . "?" . implode("&", $args));
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// No need to return
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exit;
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}
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// proc_status_redirect: Save the form status, suspend and redirect
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// the form
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function proc_status_redirect(&$status)
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{
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// Obtain the form
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$FORM =& get_or_post();
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// Set the status
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if (!is_null($status)) {
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$FORM["status"] = $status;
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}
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// No more form
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if ( is_array($status)
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&& array_key_exists("isform", $status)
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&& !$status["isform"]) {
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// Find the referring script
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// Back to the page that refer to this form
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if (array_key_exists("referer2", $FORM)) {
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$url = $FORM["referer2"];
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// Back to the user's home on the calling site
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} elseif (array_key_exists("hostport", $FORM)) {
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$url = $FORM["hostport"] . userhome();
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// Default to the current URL
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} else {
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$url = REQUEST_FILE;
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}
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// Do not affect the previous form
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unset($status["isform"]);
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// Do not suspend the form in this case
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// Default to this same script
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} else {
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$url = _callform_form_this();
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// Suspend the current form
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$formid = suspend_form();
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$url = add_get_arg($url, "formid", $formid);
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}
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if (!is_null($status)) {
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$statid = suspend_status($status);
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$url = add_get_arg($url, "statid", $statid);
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}
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// Redirect
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if ($_SERVER["REQUEST_METHOD"] == "POST") {
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http_303($url);
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} else {
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http_307($url);
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}
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// No need to return
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exit;
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}
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// error_redirect: Shortcut to redirect the error form
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function error_redirect(&$status)
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{
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if (!is_null($status)) {
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$status["status"] = "error";
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}
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proc_status_redirect($status);
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// No need to return
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exit;
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}
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// success_redirect: Shortcut to redirect the success form
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function success_redirect(&$status)
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{
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if (!is_null($status)) {
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$status["status"] = "success";
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}
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proc_status_redirect($status);
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// No need to return
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exit;
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}
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// goto_form: Goto a specific form
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function goto_form(&$FORM, $url = null)
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{
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// Add the caller infomation
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if (is_called_form()) {
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// Obtain the current form
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$CURFORM =& curform();
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// Add the caller infomation
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$FORM["caller"] = $CURFORM["caller"];
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$FORM["cformid"] = $CURFORM["cformid"];
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}
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// Suspend the supplied form
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$formid = suspend_form($FORM);
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// Base URL
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// Default to this same script
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if (is_null($url)) {
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$url = REQUEST_FILE;
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}
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// Add the form ID
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$url = add_get_arg($url, "formid", $formid);
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// Redirect
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if ($_SERVER["REQUEST_METHOD"] == "POST") {
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http_303($url);
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} else {
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http_307($url);
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}
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// No need to return
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exit;
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}
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// suspend_form: Suspend the current form to $_SESSION
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function suspend_form($FORM = null)
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{
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// Obtain the form
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if (is_null($FORM)) {
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$FORM =& get_or_post();
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}
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// Initialize the form deposit
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if (!array_key_exists("saveforms", $_SESSION)) {
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$_SESSION["saveforms"] = array();
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}
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// Generate a new random form ID
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$formid = new_sn_assoc($_SESSION["saveforms"]);
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// Save the current form
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$_SESSION["saveforms"][$formid] = $FORM;
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// Save the form ID
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$_SESSION["saveforms"][$formid]["formid"] = $formid;
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$_SESSION["saveforms"][$formid]["ownerscript"] = REQUEST_PATH;
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// Return the form ID
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return $formid;
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}
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// retrieve_form: Retrieve a previously suspended form from $_SESSION
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// Return empty array instead of empty, to be merged directly
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function &retrieve_form($formid = null)
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{
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// Cache the result
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static $cache = array();
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// Return the cache
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if (is_null($formid)) {
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// $cache[0] is the default (previous form)
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if (array_key_exists(0, $cache)) {
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return $cache[0];
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}
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} else {
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if (array_key_exists($formid, $cache)) {
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return $cache[$formid];
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}
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}
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// Session not in use, return null in all cases
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if (!isset($_SESSION)) {
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if (is_null($formid)) {
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$cache[0] = array();
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return $cache[0];
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} else {
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$cache[$formid] = array();
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return $cache[$formid];
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}
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}
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// Initialize the form deposit
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if (!array_key_exists("saveforms", $_SESSION)) {
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$_SESSION["saveforms"] = array();
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if (is_null($formid)) {
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$cache[0] = array();
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return $cache[0];
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} else {
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$cache[$formid] = array();
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return $cache[$formid];
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}
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}
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// Obtain the previous suspended form if form not specified
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if (is_null($formid)) {
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// Obtain the form
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$FORM =& get_or_post();
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// Return empty if not set
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if (!array_key_exists("formid", $FORM)) {
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$cache[0] = array();
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return $cache[0];
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}
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$formid = $FORM["formid"];
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// There is no such previously suspended form
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if (!array_key_exists($formid, $_SESSION["saveforms"])) {
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$cache[$formid] = array();
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$cache[0] = array();
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return $cache[0];
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}
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$cache[$formid] = $_SESSION["saveforms"][$formid];
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$cache[0] =& $cache[$formid];
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} else {
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// There is no such previously suspended form
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if (!array_key_exists($formid, $_SESSION["saveforms"])) {
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$cache[$formid] = array();
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return $cache[$formid];
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}
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$cache[$formid] = $_SESSION["saveforms"][$formid];
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}
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// Import the selection if needed
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if ( array_key_exists("import_func", $cache[$formid])
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&& function_exists($cache[$formid]["import_func"])) {
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$cache[$formid] = call_user_func($cache[$formid]["import_func"],
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$cache[$formid]);
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}
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// Return the form
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return $cache[$formid];
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}
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// is_first_form: If it is a first form
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function is_first_form()
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{
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// Obtain the form
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$FORM =& get_or_post();
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// Return empty if not set
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return !array_key_exists("formid", $FORM);
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}
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// is_called_form: If this is a called form
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function is_called_form($FORM = null)
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{
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if (!USE_SUSPEND_FORM) {
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return false;
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}
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// Obtain the current form
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if (is_null($FORM)) {
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$FORM =& curform();
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}
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// Full caller infomation provided
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return array_key_exists("caller", $FORM)
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&& array_key_exists("cformid", $FORM);
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}
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// args_addcaller: Add the caller infomation to the GET argument list
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function args_addcaller(&$args)
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{
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if (is_called_form()) {
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// Obtain the current form
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$FORM =& curform();
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// Add the caller infomation
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$args[] = "caller=" . urlencode($FORM["caller"]);
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$args[] = "cformid=" . urlencode($FORM["cformid"]);
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}
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return;
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}
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// suspend_status: Suspend the current status to $_SESSION
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function suspend_status($status)
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{
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// Bounce
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if (is_null($status)) {
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return null;
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}
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// Initialize the status deposit
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if (!array_key_exists("savestats", $_SESSION)) {
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$_SESSION["savestats"] = array();
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}
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// Generate a new random status ID
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$id = new_sn_assoc($_SESSION["savestats"]);
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// Save the current status
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$_SESSION["savestats"][$id] = $status;
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// Save the status ID
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$_SESSION["savestats"][$id]["id"] = $id;
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// Return the status ID
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return $id;
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}
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// retrieve_status: Retrieve a previously suspended status from $_SESSION
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function &retrieve_status($statid = null)
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{
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// Cache the result
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static $cache = array();
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// Return the cache
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if (is_null($statid)) {
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// $cache[0] is the default (previous form)
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if (array_key_exists(0, $cache)) {
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return $cache[0];
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}
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} else {
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if (array_key_exists($statid, $cache)) {
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return $cache[$statid];
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}
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}
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// Session not in use, return null in all cases
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if (!isset($_SESSION)) {
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if (is_null($statid)) {
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$cache[0] = null;
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return $cache[0];
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} else {
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$cache[$statid] = null;
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return $cache[$statid];
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}
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}
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// Initialize the status deposit
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if (!array_key_exists("savestats", $_SESSION)) {
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$_SESSION["savestats"] = array();
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if (is_null($statid)) {
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$cache[0] = null;
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return $cache[0];
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} else {
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$cache[$statid] = null;
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return $cache[$statid];
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}
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}
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// Obtain the previous suspended status if status not specified
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if (is_null($statid)) {
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// Obtain the form
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$FORM =& get_or_post();
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// Return empty if not set
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if (!array_key_exists("statid", $FORM)) {
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$cache[0] = null;
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return $cache[0];
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}
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$statid = $FORM["statid"];
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// There is no such previously suspended status
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if (!array_key_exists($statid, $_SESSION["savestats"])) {
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$cache[$statid] = null;
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$cache[0] = null;
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return $cache[0];
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}
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$cache[$statid] = $_SESSION["savestats"][$statid];
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$cache[0] =& $cache[$statid];
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} else {
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// There is no such previously suspended status
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if (!array_key_exists($statid, $_SESSION["savestats"])) {
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$cache[$statid] = null;
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return $cache[$statid];
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}
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$cache[$statid] = $_SESSION["savestats"][$statid];
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}
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// Return the status
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return $cache[$statid];
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}
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// _callform_form_this: Find the processing script
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function _callform_form_this()
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{
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static $cache;
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if (isset($cache)) {
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return $cache;
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}
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$FORM =& get_or_post();
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$cache = (array_key_exists("referer", $FORM)? $FORM["referer"]:
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REQUEST_FILE);
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return $cache;
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}
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?>
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