<?php

class myInformer {
    function getContent($url, $cache_time = 0, $tpl_file = null, $params = null) {
	return getContent($url, $cache_time = 0, $tpl_file = null, $params = null);
    }
}

function getContent($url, $cache_time = 0, $tpl_file = null, $params = null)
{
        $cache_filename = dirname(__FILE__) . '/cache/' . md5($url);
        
        // Очистим кеш, если не нужен
        if (!$cache_time && file_exists($cache_filename)) {
            @unlink($cache_filename);
        }
        
        if (file_exists($cache_filename)) {
            $cache = @unserialize(file_get_contents($cache_filename));
            if (!$cache || $cache['timeout'] < time()) {
                $cache = null;
            }
        }
        
        if (!isset($cache['content'])) {
        
            $content = get($url, $params);
            if (!$content) {
        	$error = 'Empty content';
            }
    		
    	    if (empty($error)) {
        	    if ($tpl_file) {
        		    if (!file_exists($tpl_file)) {
        		        $tpl_file = dirname(__FILE__) . '/templates/' . $tpl_file;
        		        if (!file_exists($tpl_file)) {
        		            print '[ERROR] template not found';
        		            exit;
        		        }
        		    }
        		    
        		    if ($tpl_file) {
        		        
        		    }
        		    $content = preg_replace('!\{content\}!', $content, file_get_contents($tpl_file));
        		}
        		
        		// Перекодируем контент в нужную кодировку, если необходимо
        		if (isset($params['codepage_out'])) {
        		    $content = iconv(isset($params['codepage_in']) ? $params['codepage_in'] : 'utf-8', $params['codepage_out'], $content);
        		}
    	        
    	        // Сохраним в кеше, если в этом есть необходимость
    	        if ($cache_time) {
    	            $cache = array(
    	                'timeout' => time() + $cache_time,
    	                'content' => $content,
    	            );
    	            file_put_contents($cache_filename, serialize($cache));
    	        }
    	        
    		    return $content;
    		}
    		
    		return $error;
        } else {
            return $cache['content'];
        }
}
    
function get($url, $params)
{
        if (function_exists('curl_init')) {
            $ch = curl_init($url);
        
    		if (isset($params['auth'])) {
    		    curl_setopt($ch, CURLOPT_USERPWD, $params['auth']);
    		}
    		curl_setopt($ch, CURLOPT_HEADER, 0);
    	    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    	    curl_setopt($ch, CURLOPT_TIMEOUT, isset($params['timeout']) ? $params['timeout'] : 20);
    	    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
    		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    		curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
    
    		if (isset($params['post']) && is_array($params['post'])) {
    		    curl_setopt($ch, CURLOPT_POST, 1);
    		    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params['post']));
    		}
    	    
    		$content = curl_exec($ch);
    		$error = curl_error($ch);
    		curl_close($ch);
    		
    		if ($error) {
    		    print '[ERROR] ' . $error;
    		    exit;
    		}
        } else {
            $content = '';
            
                $f = fopen($url, 'r');
                stream_set_timeout($f, isset($params['timeout']) ? $params['timeout'] : 20);
                while($tmp = fread($f, 1024)) {
                    $content .= $tmp;
                }
		
		
    }
    return $content;
    
}


function file_put_contents($n, $d, $flag = false) {  
    define('FILE_APPEND', 1);
    $mode = ($flag == FILE_APPEND || strtoupper($flag) == 'FILE_APPEND') ? 'a' : 'w';  
    $f = @fopen($n, $mode);  
    if ($f === false) {  
        return 0;  
    } else {  
        if (is_array($d)) $d = implode($d);  
        $bytes_written = fwrite($f, $d);  
        fclose($f);  
        return $bytes_written;  
    }  
}  


?>