init.inc

完美的在线教育系统

<?php

/**
 * Initialisation code + library of functions to process to the initialisation in
 * a varied set of ways.
 * This script is a modified version that can only be used with the php extension >= 3.2.32
 * and PHP version 4.2 or higher
 */
/**
 * Faking the register_globals code - very bad thing - should escape all vars
 */
if (isset ($HTTP_GET_VARS)) {
	while (list ($var, $val) = each($HTTP_GET_VARS)) {
		$$var = $val;
	}
}
if (isset ($HTTP_POST_VARS)) {
	while (list ($var, $val) = each($HTTP_POST_VARS)) {
		$$var = $val;
	}
}
if (isset ($HTTP_COOKIE_VARS)) {
	while (list ($var, $val) = each($HTTP_COOKIE_VARS)) {
		$$var = $val;
	}
}
if (isset ($HTTP_SERVER_VARS)) {
	while (list ($var, $val) = each($HTTP_SERVER_VARS)) {
		$$var = $val;
	}
}

$self = $PHP_SELF;

/**
 * Setting default values for variables that will be used globally
 */
if ($ps == "")
	$ps = 20;
if ($np == "")
	$np = 0;
if ($o == "")
	$o = 0;
if ($resultslimit <= 0)
	$resultslimit = 0;

if ($excerptsize == "")
	$excerptsize = 256;
if ($excerptpadding == "")
	$excerptsize = 40;

if (($dt != 'back') && ($dt != 'er') && ($dt != 'range'))
	$dt = '';
if ($dp == "")
	$dp = 0;
if (($dx != 0) && ($dx != -1) && ($dx != 1))
	$dx = 0;
if ($dy < 1970)
	$dy = 1970;
if (($dm < 0) || ($dm > 11))
	$dm = 0;
if (($dd <= 0) || ($dd > 31))
	$dd = "01";

$db = urldecode($db);
$de = urldecode($de);
$type = urldecode($type);

$url = urldecode($url);

if ($db == "")
	$db = '01/01/1970';
if ($de == "")
	$de = '31/12/2020';

if ($hlbeg == "")
	$hlbeg = '<b>';
if ($hlend == "")
	$hlend = '</b>';

if ($storedocurl == "")
	$storedocurl = '/cgi-bin/storedoc.cgi';

if (isset ($q)) {
	$q = urldecode($q);
	$have_query_flag = 1;
} else {
	$have_query_flag = 0;
}

$query_orig = $q;

if (isset ($CHARSET_SAVED_QUERY_STRING)) {
	$q_local = urldecode($CHARSET_SAVED_QUERY_STRING);
	if (preg_match('/q=([^&]*)\&/', $q_local, $param)) {
		$q_local = urlencode($param[1]);
	}
	elseif (preg_match('/q=(.*)$/', $q_local, $param)) {
		$q_local = urlencode($param[1]);
	} else {
		$q_local = urlencode($q);
	}
	$q_string = $CHARSET_SAVED_QUERY_STRING;
} else {
	$q_local = urlencode(stripslashes($q));
	$q_string = $QUERY_STRING;
}

$db_local = urlencode($db);
$de_local = urlencode($de);
$type_local = urlencode($type);

$url_local = urlencode($url);

if (($MAX_NP > 0) && ($np > $MAX_NP))
	$np = $MAX_NP;
if (($MAX_PS > 0) && ($ps > $MAX_PS))
	$ps = $MAX_PS;

/**
 * Initialisation function. Gets the global variables defined all over and prepares
 * the udm agent accordingly.
 * 
 */
function init() {
	global $q, $q_string, $query_orig, $have_query_flag, $have_spell_flag, $auto_wild;
	global $tag, $tag_arr, $cat, $cat_arr, $np, $ps, $lang, $lang_arr, $wm, $wf, $ul, $m;
	global $dt, $dp, $dx, $dm, $dd, $dy, $db, $de, $s, $resultslimit;
	global $trackquery, $localcharset, $browsercharset, $stopwordtable_arr, $stopwordfile_arr;
	global $minwordlength, $maxwordlength, $phrase, $cache;
	global $ispelluseprefixes, $crosswords, $ispellmode, $spell_host;
	global $affix_file, $spell_file, $vardir, $datadir, $sp, $sy;
	global $dbaddr, $dbmode, $udm_agent, $hlbeg, $hlend, $detectclones;
	global $phpver, $synonym_arr, $searchd_arr, $ul_arr;
	global $REMOTE_ADDR, $storedaddr, $type_arr, $type, $groupbysite, $site;
	global $excerptsize, $excerptpadding, $dateformat, $suggest;
	global $XMLOutput;

	ParseQString();

	/*
	   if (preg_match("/^(\d+)\.(\d+)\.(\d+)/",phpversion(),$param)) {
		$phpver=$param[1];
	   	if ($param[2] < 9) {
	   		$phpver .= "0$param[2]";
	   	} else {
	   		$phpver .= "$param[2]";
	   	}
	        if ($param[3] < 9) {
	   		$phpver .= "0$param[3]";
	   	} else {
	   		$phpver .= "$param[3]";
	   	}
	   } else {
	   	print "Cannot determine php version: <b>".phpversion()."</b>\n";
	   	exit;
	   }
	*/
	$have_spell_flag = 0;

	$stopwordtable_arr = array ();
	$stopwordfile_arr = array ();
	$synonym_arr = array ();
	$searchd_arr = array ();

	read_template();

	if ($sp == '')
		$sp = 0;
	if ($sy == '')
		$sy = 0;

	$udm_agent = udm_alloc_agent_array($dbaddr);
	udm_set_agent_param($udm_agent, UDM_PARAM_PAGE_SIZE, $ps);
	udm_set_agent_param($udm_agent, UDM_PARAM_PAGE_NUM, $np);

	$trackquery = strtolower($trackquery);
	if ($trackquery == 'yes') {
		udm_set_agent_param($udm_agent, UDM_PARAM_TRACK_MODE, UDM_ENABLED);
	} else {
		udm_set_agent_param($udm_agent, UDM_PARAM_TRACK_MODE, UDM_DISABLED);
	}

	$cache = strtolower($cache);
	if ($cache == 'yes') {
		udm_set_agent_param($udm_agent, UDM_PARAM_CACHE_MODE, UDM_ENABLED);
	} else {
		udm_set_agent_param($udm_agent, UDM_PARAM_CACHE_MODE, UDM_DISABLED);
	}

	$ispelluseprefixes = strtolower($ispelluseprefixes);
	if ($ispelluseprefixes == 'yes') {
		udm_set_agent_param($udm_agent, UDM_PARAM_ISPELL_PREFIXES, UDM_ENABLED);
	} else {
		udm_set_agent_param($udm_agent, UDM_PARAM_ISPELL_PREFIXES, UDM_DISABLED);
	}

	$crosswords = strtolower($crosswords);
	if ($crosswords == 'yes') {
		udm_set_agent_param($udm_agent, UDM_PARAM_CROSS_WORDS, UDM_ENABLED);
	} else {
		udm_set_agent_param($udm_agent, UDM_PARAM_CROSS_WORDS, UDM_DISABLED);
	}

	if ($localcharset != '') {
		udm_set_agent_param($udm_agent, UDM_PARAM_CHARSET, $localcharset);
		if (!udm_check_charset($udm_agent, $localcharset)) {
			print_template('top');
			flush();
			print_error_local("Incorrect localcharset $localcharset");
		}
	}

	if ($localcharset == '')
		udm_set_agent_param($udm_agent, UDM_PARAM_CHARSET, 'utf-8');
	if ($browsercharset != '') {
		if (!udm_check_charset($udm_agent, $browsercharset)) {
			print_template('top');
			flush();
			print_error_local("Incorrect browsercharset $browsercharset");
		}
		udm_set_agent_param($udm_agent, UDM_PARAM_BROWSER_CHARSET, $browsercharset);
		if($XMLOutput != 1){
			header("Content-Type: text/html; charset=$browsercharset");
		}else{
			header("Content-Type: text/xml");
			echo "<?xml version='1.0' encoding=\"$browsercharset\" ?>\n";
		}
	} else {
		udm_set_agent_param($udm_agent, UDM_PARAM_BROWSER_CHARSET, 'utf-8');
		if($XMLOutput != 1){
			header("Content-Type: text/html; charset=utf-8");
		}else{
			header("Content-Type: text/xml");
			echo "<?xml version='1.0' encoding=\"utf-8\" ?>\n";
		}
	}
	if ($hlbeg == '')
		$hlbeg = '<font color="000088"><b>';
	udm_set_agent_param($udm_agent, UDM_PARAM_HLBEG, $hlbeg);

	if ($hlend == '')
		$hlend = '</b></font>';
	udm_set_agent_param($udm_agent, UDM_PARAM_HLEND, $hlend);

	for ($i = 0; $i < count($stopwordfile_arr); $i += 1) {
		if ($stopwordfile_arr[$i] != '') {
			udm_set_agent_param($udm_agent, UDM_PARAM_STOPFILE, $stopwordfile_arr[$i]);
		}
	}

	if ($sy) {
		for ($i = 0; $i < count($synonym_arr); $i += 1) {
			if ($synonym_arr[$i] != '') {
				udm_set_agent_param($udm_agent, UDM_PARAM_SYNONYM, $synonym_arr[$i]);
			}
		}
	}

	udm_set_agent_param($udm_agent, UDM_PARAM_QSTRING, $q_string);
	udm_set_agent_param($udm_agent, UDM_PARAM_REMOTE_ADDR, $REMOTE_ADDR);

	if ($have_query_flag)
		udm_set_agent_param($udm_agent, UDM_PARAM_QUERY, $query_orig);
	if ($storedaddr != '')
		udm_set_agent_param($udm_agent, UDM_PARAM_STORED, $storedaddr);

	$groupbysite = strtolower($groupbysite);
	if ($groupbysite == 'yes') {
		udm_set_agent_param($udm_agent, UDM_PARAM_GROUPBYSITE, UDM_ENABLED);
	} else {
		udm_set_agent_param($udm_agent, UDM_PARAM_GROUPBYSITE, UDM_DISABLED);