mirror of
https://github.com/WhatCD/Gazelle.git
synced 2024-12-13 02:46:30 +00:00
233 lines
7.5 KiB
PHP
233 lines
7.5 KiB
PHP
<?
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/*-- Image Start Class ---------------------------------*/
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/*------------------------------------------------------*/
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/* Simplified version of script_start, used for the */
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/* sitewide image proxy. */
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/*------------------------------------------------------*/
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/********************************************************/
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error_reporting(E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR);
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if(isset($_SERVER['http_if_modified_since'])) {
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header("Status: 304 Not Modified");
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die();
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}
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header('Expires: '.date('D, d-M-Y H:i:s \U\T\C',time()+3600*24*120)); //120 days
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header('Last-Modified: '.date('D, d-M-Y H:i:s \U\T\C',time()));
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require('classes/config.php'); //The config contains all site wide configuration information as well as memcached rules
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if (!extension_loaded('gd')) { error('nogd'); }
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require(SERVER_ROOT.'/classes/class_cache.php'); //Require the caching class
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require(SERVER_ROOT.'/classes/class_encrypt.php'); //Require the encryption class
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require(SERVER_ROOT.'/classes/regex.php');
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$Cache = NEW CACHE; //Load the caching class
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$Enc = NEW CRYPT; //Load the encryption class
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if (isset($_COOKIE['session'])) { $LoginCookie=$Enc->decrypt($_COOKIE['session']); }
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if(isset($LoginCookie)) {
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list($SessionID, $UserID)=explode("|~|",$Enc->decrypt($LoginCookie));
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$UserID = (int)$UserID;
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$UserInfo = $Cache->get_value('user_info_'.$UserID);
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$Permissions = $Cache->get_value('perm_'.$UserInfo['PermissionID']);
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}
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function check_perms($PermissionName) {
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global $Permissions;
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return (isset($Permissions['Permissions'][$PermissionName])) ? true : false;
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}
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function error($Type) {
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header('Content-type: image/gif');
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die(file_get_contents(SERVER_ROOT.'/sections/image/'.$Type.'.gif'));
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}
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function invisible($Image) {
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$Count = imagecolorstotal($Image);
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if ($Count == 0) { return false; }
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$TotalAlpha = 0;
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for ($i=0; $i<$Count; ++$i) {
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$Color = imagecolorsforindex($Image,$i);
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$TotalAlpha += $Color['alpha'];
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}
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return (($TotalAlpha/$Count) == 127) ? true : false;
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}
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function is_number($Str) {
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$Return = true;
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if ($Str < 0) { $Return = false; }
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// We're converting input to a int, then string and comparing to original
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$Return = ($Str == strval(intval($Str)) ? true : false);
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return $Return;
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}
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function verysmall($Image) {
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return ((imagesx($Image) * imagesy($Image)) < 25) ? true : false;
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}
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function image_type($Data) {
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if(!strncmp($Data,'GIF',3)) {
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return 'gif';
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}
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if(!strncmp($Data,pack('H*','89504E47'),4)) {
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return 'png';
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}
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if(!strncmp($Data,pack('H*','FFD8'),2)) {
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return 'jpeg';
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}
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if(!strncmp($Data,'BM',2)) {
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return 'bmp';
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}
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if(!strncmp($Data,'II',2) || !strncmp($Data,'MM',2)) {
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return 'tiff';
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}
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}
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function image_height($Type, $Data) {
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$Length = strlen($Data);
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global $URL, $_GET;
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switch($Type) {
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case 'jpeg':
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// See http://www.obrador.com/essentialjpeg/headerinfo.htm
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$i = 4;
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$Data = (substr($Data, $i));
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$Block = unpack('nLength', $Data);
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$Data = substr($Data, $Block['Length']);
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$i+=$Block['Length'];
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$Str []= "Started 4, + ".$Block['Length'];
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while($Data!='') { // iterate through the blocks until we find the start of frame marker (FFC0)
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$Block = unpack('CBlock/CType/nLength', $Data); // Get info about the block
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if($Block['Block'] != '255') { break; } // We should be at the start of a new block
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if($Block['Type'] != '192') { // C0
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$Data = substr($Data, $Block['Length']+2); // Next block
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$Str []= "Started ".$i.", + ".($Block['Length']+2);
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$i+=($Block['Length']+2);
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} else { // We're at the FFC0 block
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$Data = substr($Data, 5); // Skip FF C0 Length(2) precision(1)
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$i+=5;
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$Height = unpack('nHeight', $Data);
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return $Height['Height'];
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}
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}
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break;
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case 'gif':
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$Data = substr($Data, 8);
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$Height = unpack('vHeight', $Data);
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return $Height['Height'];
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case 'png':
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$Data = substr($Data, 20);
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$Height = unpack('NHeight', $Data);
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return $Height['Height'];
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default:
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return 0;
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}
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}
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function send_pm($ToID,$FromID,$Subject,$Body,$ConvID='') {
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global $DB, $Cache;
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if($ToID==0) {
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// Don't allow users to send messages to the system
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return;
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}
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if($ConvID=='') {
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$DB->query("INSERT INTO pm_conversations(Subject) VALUES ('".$Subject."')");
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$ConvID = $DB->inserted_id();
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$DB->query("INSERT INTO pm_conversations_users
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(UserID, ConvID, InInbox, InSentbox, SentDate, ReceivedDate, UnRead) VALUES
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('$ToID', '$ConvID', '1','0','".sqltime()."', '".sqltime()."', '1')");
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if ($FromID != 0) {
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$DB->query("INSERT INTO pm_conversations_users
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(UserID, ConvID, InInbox, InSentbox, SentDate, ReceivedDate, UnRead) VALUES
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('$FromID', '$ConvID', '0','1','".sqltime()."', '".sqltime()."', '0')");
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}
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} else {
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$DB->query("UPDATE pm_conversations_users SET
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InInbox='1',
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UnRead='1',
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ReceivedDate='".sqltime()."'
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WHERE UserID='$ToID'
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AND ConvID='$ConvID'");
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$DB->query("UPDATE pm_conversations_users SET
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InSentbox='1',
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SentDate='".sqltime()."'
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WHERE UserID='$FromID'
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AND ConvID='$ConvID'");
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}
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$DB->query("INSERT INTO pm_messages
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(SenderID, ConvID, SentDate, Body) VALUES
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('$FromID', '$ConvID', '".sqltime()."', '".$Body."')");
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// Clear the caches of the inbox and sentbox
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//$DB->query("SELECT UnRead from pm_conversations_users WHERE ConvID='$ConvID' AND UserID='$ToID'");
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$DB->query("SELECT COUNT(ConvID) FROM pm_conversations_users WHERE UnRead = '1' and UserID='$ToID' AND InInbox = '1'");
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list($UnRead) = $DB->next_record(MYSQLI_BOTH, FALSE);
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$Cache->cache_value('inbox_new_'.$ToID, $UnRead);
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//if ($UnRead == 0) {
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// $Cache->increment('inbox_new_'.$ToID);
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//}
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return $ConvID;
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}
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function send_irc($Raw) {
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$IRCSocket = fsockopen(SOCKET_LISTEN_ADDRESS, SOCKET_LISTEN_PORT);
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fwrite($IRCSocket, $Raw);
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fclose($IRCSocket);
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}
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function display_str($Str) {
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if ($Str === NULL || $Str === FALSE || is_array($Str)) {
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return '';
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}
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if ($Str!='' && !is_number($Str)) {
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$Str=make_utf8($Str);
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$Str=mb_convert_encoding($Str,"HTML-ENTITIES","UTF-8");
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$Str=preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,5};)/m","&",$Str);
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$Replace = array(
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"'",'"',"<",">",
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'€','‚','ƒ','„','…','†','‡','ˆ','‰','Š','‹','Œ','Ž','‘','’','“','”','•','–','—','˜','™','š','›','œ','ž','Ÿ'
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);
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$With=array(
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''','"','<','>',
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'€','‚','ƒ','„','…','†','‡','ˆ','‰','Š','‹','Œ','Ž','‘','’','“','”','•','–','—','˜','™','š','›','œ','ž','Ÿ'
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);
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$Str=str_replace($Replace,$With,$Str);
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}
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return $Str;
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}
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function make_utf8($Str) {
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if ($Str!="") {
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if (is_utf8($Str)) { $Encoding="UTF-8"; }
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if (empty($Encoding)) { $Encoding=mb_detect_encoding($Str,'UTF-8, ISO-8859-1'); }
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if (empty($Encoding)) { $Encoding="ISO-8859-1"; }
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if ($Encoding=="UTF-8") { return $Str; }
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else { return @mb_convert_encoding($Str,"UTF-8",$Encoding); }
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}
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}
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function is_utf8($Str) {
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return preg_match('%^(?:
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[\x09\x0A\x0D\x20-\x7E] // ASCII
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| [\xC2-\xDF][\x80-\xBF] // non-overlong 2-byte
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| \xE0[\xA0-\xBF][\x80-\xBF] // excluding overlongs
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| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} // straight 3-byte
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| \xED[\x80-\x9F][\x80-\xBF] // excluding surrogates
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| \xF0[\x90-\xBF][\x80-\xBF]{2} // planes 1-3
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| [\xF1-\xF3][\x80-\xBF]{3} // planes 4-15
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| \xF4[\x80-\x8F][\x80-\xBF]{2} // plane 16
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)*$%xs', $Str
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);
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}
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require(SERVER_ROOT.'/sections/image/index.php');
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?>
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