Ada*_*iss 6 php header force-download
我正在使用强制下载主要下载网站上的拉链和mp3(http://pr1pad.kissyour.net) - 跟踪谷歌分析,数据库中的下载并隐藏真正的下载路径:
就是这样:
extending CI model
... - bunch of code
function _fullread ($sd, $len) {
$ret = '';
$read = 0;
while ($read < $len && ($buf = fread($sd, $len - $read))) {
$read += strlen($buf);
$ret .= $buf;
}
return $ret;
}
function download(){
/* DOWNLOAD ITSELF */
ini_set('memory_limit', '160M');
apache_setenv('no-gzip', '1');
ob_end_flush();
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public",FALSE);
header("Content-Description: File Transfer");
header("Content-type: application/octet-stream");
if (isset($_SERVER['HTTP_USER_AGENT']) &&
(strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false))
header('Content-Type: application/force-download'); //IE HEADER
header("Accept-Ranges: bytes");
header("Content-Disposition: attachment; filename=\"" . basename("dir-with- files/".$filename) . "\";");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . filesize("dir-with-files/".$filename));
// Send file for download
if ($stream = fopen("dir-with-files/$filename", 'rb')){
while(!feof($stream) && connection_status() == 0){
//reset time limit for big files
set_time_limit(0);
print($this->_fullread($stream,1024*16));
flush();
}
fclose($stream);
}
}
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这是在LAMP上使用CI 1.7.2 - 这是我自己的方法,从各种互联网上的各种方法放在一起,因为在开发期间,出现了这些问题: - 服务器限制.ini_set没有帮助,所以我使用缓冲_fullread而不是正常fread,这是使用@readonly
- ob_end_flush(),因为网站在CI1.7.2中做了,我需要清理缓冲区
现在......它不起作用.它确实,然后它停止显示预期的大小/下载时间 - 我试图清理它,当我清理代码时,发生了一些事情,我不知道什么和任何以前的版本 - 它没有工作(没有无论如何改变设置) - 编辑:不工作=将所有内容输出到浏览器窗口.
所以我说,拧紧它,我会看到这里.
所以,我基本上寻找脚本或函数,我可以把它放到我的输出模型,并将做:
先感谢您.
编辑:现在我感觉更加紧张,从那时起/之前,因为我试图强制下载.htaccess - 虽然它有效,但它有很少的小/主要(选择你的)问题
现在,虽然我删除了.htaccess,但它仍然等待下载完成(就像它首先下载到缓存一样)并且它只是得到connected并显示打开/保存对话框.
所以,我使用了这个代码(它是在互联网上找到的可恢复的http下载的修改版本)
function _output_file($file, $path)
{
$size = filesize($path.$file);
@ob_end_clean(); //turn off output buffering to decrease cpu usage
// required for IE, otherwise Content-Disposition may be ignored
if(ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');
header('Content-Type: application/force-download');
header('Content-Disposition: attachment; filename="'.basename($file).'"');
header("Content-Transfer-Encoding: binary");
header('Accept-Ranges: bytes');
/* The three lines below basically make the
download non-cacheable */
header("Cache-control: no-cache, pre-check=0, post-check=0");
header("Cache-control: private");
header('Pragma: private');
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
// multipart-download and download resuming support
if(isset($_SERVER['HTTP_RANGE']))
{
list($a, $range) = explode("=",$_SERVER['HTTP_RANGE'],2);
list($range) = explode(",",$range,2);
list($range, $range_end) = explode("-", $range);
$range=intval($range);
if(!$range_end) {
$range_end=$size-1;
} else {
$range_end=intval($range_end);
}
$new_length = $range_end-$range+1;
header("HTTP/1.1 206 Partial Content");
header("Content-Length: $new_length");
header("Content-Range: bytes $range-$range_end/$size");
} else {
$new_length=$size;
header("Content-Length: ".$size);
}
/* output the file itself */
$chunksize = 1*(1024*1024); //you may want to change this
$bytes_send = 0;
if ($file = fopen($path.$file, 'rb'))
{
if(isset($_SERVER['HTTP_RANGE']))
fseek($file, $range);
while
(!feof($file) &&
(!connection_aborted()) &&
($bytes_send<$new_length) )
{
$buffer = fread($file, $chunksize);
print($buffer); //echo($buffer); // is also possible
flush();
$bytes_send += strlen($buffer);
}
fclose($file);
} else die('Error - can not open file.');
die();
}
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然后在模型中:
function download_file($filename){
/*
DOWNLOAD
*/
$path = "datadirwithmyfiles/"; //directory
//track analytics
include('includes/Galvanize.php'); //great plugin
$GA = new Galvanize('UA-XXXXXXX-7');
$GA->trackPageView();
$this->_output_file($filename, $path);
}
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它在Win/MAC上提到的所有浏览器中都能正常工作 - 到目前为止,没有问题.