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| <?php
// File to download
$remoteFile = 'http://www.yahoo.com/';
// Local file for saving
$localFile = "YahooHome.htm";
// Time to cache in hours
$cacheTime = 24;
// Connection time out
$connTimeout = 10;
if(file_exists($localFile) && (time() - ($cacheTime * 3600) < filemtime($localFile))){
readfile($localFile);
}else{
$url = parse_url($remoteFile);
$host = $url['host'];
$path = isset($url['path']) ? $url['path'] : '/';
if (isset($url['query'])) {
$path .= '?' . $url['query'];
}
$port = isset($url['port']) ? $url['port'] : '80';
$fp = @fsockopen($host, '80', $errno, $errstr, $connTimeout );
if(!$fp){
// If connection failed, return the cached file
if(file_exists($localFile)){
readfile($localFile);
}
}else{
// Header Info
$header = "GET $path HTTP/1.0\r\n";
$header .= "Host: $host\r\n";
$header .= "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6\r\n";
$header .= "Accept: */*\r\n";
$header .= "Accept-Language: en-us,en;q=0.5\r\n";
$header .= "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n";
$header .= "Keep-Alive: 300\r\n";
$header .= "Connection: keep-alive\r\n";
$header .= "Referer: http://$host\r\n\r\n";
$response = '';
fputs($fp, $header);
// Get the file content
while($line = fread($fp, 4096)){
$response .= $line;
}
fclose( $fp );
// Remove Header Info
$pos = strpos($response, "\r\n\r\n");
$response = substr($response, $pos + 4);
echo $response;
// Save the file content
if(!file_exists($localFile)){
// Create the file, if it doesn't exist already
fopen($localFile, 'w');
}
if(is_writable($localFile)) {
if($fp = fopen($localFile, 'w')){
fwrite($fp, $response);
fclose($fp);
}
}
}
}
?> | |
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| Remote File Size
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