2024-10-10

web/include/cache_start.php

@@ -0,0 +1,55 @@
+<?php
+     require_once(dirname(__FILE__)."/db_info.inc.php");
+        //cache head start
+        if(!isset($cache_time)) $cache_time=10;
+        $sid=$OJ_NAME.$_SERVER["HTTP_HOST"];
+        $OJ_CACHE_SHARE=(isset($OJ_CACHE_SHARE)&&$OJ_CACHE_SHARE)&&!isset($_SESSION[$OJ_NAME.'_'.'administrator']);
+        if (!$OJ_CACHE_SHARE&&isset($_SESSION[$OJ_NAME.'_'.'user_id'])){
+                $ip = ($_SERVER['REMOTE_ADDR']);
+                if( !empty( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ){
+                    $REMOTE_ADDR = $_SERVER['HTTP_X_FORWARDED_FOR'];
+                    $tmp_ip=explode(',',$REMOTE_ADDR);
+                    $ip =(htmlentities($tmp_ip[0],ENT_QUOTES,"UTF-8"));
+                }
+                $sid.=session_id().$ip;
+        }
+        if (isset($_SERVER["REQUEST_URI"])){
+                $sid.=$_SERVER["REQUEST_URI"];
+        }
+        
+        $sid=md5($sid);
+        $file = "cache/cache_$sid.html";
+        
+        if($OJ_MEMCACHE ){
+                $mem = new Memcache;
+                if($OJ_SAE)
+                        $mem=memcache_init();
+                else{
+                        $mem->connect($OJ_MEMSERVER,  $OJ_MEMPORT);
+                }
+                $content=$mem->get($file);
+                if($content){
+                         echo $content;
+                         exit();
+                }else{
+                        $use_cache=false;
+                        $write_cache=true;
+                }
+        }else{
+                
+                if (file_exists ( $file ))
+                        $last = filemtime ( $file );
+                else
+                        $last =0;
+                $use_cache=(time () - $last < $cache_time);
+                
+        }
+        if ($use_cache) {
+                //header ( "Location: $file" );
+                include ($file);
+                exit ();
+        } else {
+                ob_start ();
+        }
+//cache head stop
+?>