<?php
// File name:	request.inc.php
// Description:	PHP subroutine to handle the user requests
// Date:	2006-04-03
// Author:	imacat <imacat@pristine.com.tw>
// Copyright:	Copyright (C) 2006-2007 Pristine Communications

// Set the include path
if (!defined("INCPATH_SET")) {
    require_once dirname(__FILE__) . "/incpath.inc.php";
}
// Referenced subroutines
require_once "monica/callform.inc.php";
require_once "monica/chkfunc.inc.php";
require_once "monica/formfunc.inc.php";
require_once "monica/gettext.inc.php";
require_once "monica/guest.inc.php";
require_once "monica/sql.inc.php";

// Settings
if (!defined("USER_REQ_EXPIRE")) {
    define("USER_REQ_EXPIRE", 72);
}

// fetch_curreq: Fetch the current request
function fetch_curreq()
{
    // The error status
    static $error = null;
    // Fetched before
    if (array_key_exists("REQUEST", $GLOBALS)) {
        return $error;
    }
    // Obtain the current form
    $FORM =& curform();
    // No item specified
    if (!array_key_exists("req", $FORM)) {
        $error = array("msg"=>NC_("Please specify the request."),
            "isform"=>false);
        return $error;
    }
    $sn =& $FORM["req"];
    
    // Find the record
    if (!check_sn($sn)) {
        $error = array("msg"=>NC_("Invalid request S/N: %s."),
            "margs"=>array($FORM["req"]),
            "isform"=>false);
        return $error;
    }
    $cols = array();
    $select = "SELECT * FROM userreq WHERE sn=$sn;\n";
    $result = sql_query($select);
    if (sql_num_rows($result) != 1) {
        $error = array("msg"=>NC_("Invalid request S/N: %s."),
            "margs"=>array($FORM["req"]),
            "isform"=>false);
        return $error;
    }
    
    $row = sql_fetch_assoc($result);
    // Obtain the request arguments
    $row["_args"] = $row["args"];
    parse_str($row["_args"], $row["args"]);
    // Obtain the user information
    if (!is_null($row["usr"])) {
        $row["_usr"] = $row["usr"];
        $select = "SELECT * FROM users WHERE sn=" . $row["_usr"] . ";\n";
        $result = sql_query($select);
        $row["usr"] = sql_fetch_assoc($result);
    }
    
    // Local extension
    if (function_exists("fetch_curreq_script")) {
        $row = fetch_curreq_script($row);
    }
    $GLOBALS["REQUEST"] = $row;
    is_form(true);
    if (    !array_key_exists("step", curform())
            && array_key_exists("step", $row["args"])) {
        form_step($row["args"]["step"]);
    }
    // OK
    return null;
}

// is_userreq: If a request is requested
function is_userreq($isreq = null)
{
    // Cache the result
    static $cache;
    // Use "isreq" to alter the cache
    if (!is_null($isreq)) {
        // A status is provided
        if (is_array($isreq)) {
            if (array_key_exists("isreq", $isreq)) {
                $cache = $isreq["isreq"];
                settype($cache, "boolean");
            }
        // A scalar value
        } else {
            $cache = $isreq;
            settype($cache, "boolean");
        }
    }
    // Return the cache
    if (isset($cache)) {
        return $cache;
    }
    
    // Obtain the current form
    $FORM =& curform();
    // No valid form infomation
    if (!array_key_exists("req", $FORM)) {
        $cache = false;
        return $cache;
    }
    // "isreq" was specified
    $status =& retrieve_status();
    if (is_array($status) && array_key_exists("isreq", $status)) {
        $cache = $status["isreq"];
        return $cache;
    }
    // Yes, we have a request here
    $cache = true;
    return $cache;
}

// expire_userreq: Expire user requests
function expire_userreq()
{
    $delete = "DELETE FROM userreq"
        . " WHERE expire IS NOT NULL"
        . " AND expire<now();\n";
    gsql_query($delete);
    return;
}

?>