/**
* 输出、文件下载
* 默认以附件方式下载；$download为false时则为输出文件
*/
function file_put_out($file, $download = false)
{
if (!is_file($file)) {
show_json('not a file!');
}
if (!file_exists($file)) {
show_json('file not exists', false);
}
if (!is_readable($file)) {
show_json('file not readable', false);
}
set_time_limit(0);
ob_clean();
//清除之前所有输出缓冲 TODO
$mime = get_file_mime(get_path_ext($file));
if ($download || strstr($mime, 'application/') && $mime != 'application/x-shockwave-flash') {
//下载或者application则设置下载头
$filename = get_path_this($file);
//解决在IE中下载时中文乱码问题
if (preg_match('/MSIE/', $_SERVER['HTTP_USER_AGENT']) || preg_match('/Trident/', $_SERVER['HTTP_USER_AGENT'])) {
if ($GLOBALS['config']['system_os'] != 'windows') {
//win主机 ie浏览器；中文文件下载urlencode问题
$filename = str_replace('+', '%20', urlencode($filename));
}
}
header("Content-Type: application/octet-stream");
header("Content-Disposition: attachment;filename=" . $filename);
} else {
//缓存文件
header('Expires: ' . date('D, d M Y H:i:s', time() + 3600 * 24 * 20) . ' GMT');
header("Cache-Pragma: public");
header("Cache-Control: cache, must-revalidate");
if (isset($_SERVER['If-Modified-Since']) && strtotime($_SERVER['If-Modified-Since']) == filemtime($file)) {
header('HTTP/1.1 304 Not Modified');
header('Last-Modified: ' . date('D, d M Y H:i:s', filemtime($file)) . ' GMT');
//304
exit;
} else {
header('Last-Modified: ' . date('D, d M Y H:i:s', filemtime($file)) . ' GMT', true, 200);
}
$etag = '"' . md5(date('D, d M Y H:i:s', filemtime($file))) . '"';
if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && $_SERVER['HTTP_IF_NONE_MATCH'] == $etag) {
header('HTTP/1.1 304 Not Modified');
header('Etag: ' . $etag);
exit;
} else {
header('Etag: ' . $etag);
}
}
header("X-Powered-By: kodExplorer.");
header("Content-Type: " . $mime);
header("Accept-Ranges: bytes");
$size = get_filesize($file);
$length = $size;
// Content length
$start = 0;
// Start byte
$end = $size - 1;
// End byte
if (isset($_SERVER['HTTP_RANGE']) || isset($_GET['start'])) {
//分段请求；视频拖拽
$c_start = $start;
$c_end = $end;
if (isset($_GET['start'])) {
$c_start = intval($_GET['start']);
} else {
//range
list(, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
if (strpos($range, ',') !== false) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes {$start}-{$end}/{$size}");
exit;
}
if ($range == '-') {
$c_start = $size - substr($range, 1);
} else {
$range = explode('-', $range);
$c_start = $range[0];
$c_end = isset($range[1]) && is_numeric($range[1]) ? $range[1] : $size;
}
$c_end = $c_end > $end ? $end : $c_end;
if ($c_start > $c_end || $c_start > $size - 1 || $c_end >= $size) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes {$start}-{$end}/{$size}");
exit;
}
}
$start = $c_start;
$end = $c_end;
$length = $end - $start + 1;
header('HTTP/1.1 206 Partial Content');
}
header("Content-Range: bytes {$start}-{$end}/{$size}");
header("Content-Length: " . $length);
//header("X-Sendfile: $file");exit;
if (!($fp = @fopen($file, "rb"))) {
exit;
}
fseek($fp, $start);
while (!feof($fp)) {
set_time_limit(0);
print fread($fp, 1024 * 4);
//输出文件
flush();
ob_flush();
}
fclose($fp);
}
/**
* 文件代理输出
*/
function file_proxy_out($file)
{
if (!file_exists($file)) {
show_json('file not exists', false);
}
$mime = get_file_mime(get_path_ext($file));
header("Cache-Control:public");
header("Content-Type:" . $mime);
header("Content-Length: " . filesize($file));
//输出总长
$fp = fopen($file, "rb");
set_time_limit(0);
while (!feof($fp)) {
print fread($fp, 1024 * 8);
//输出文件
flush();
ob_flush();
}
fclose($fp);
exit;
}
/**
* Output, file download
* Default attachment download; $ download is false when compared to the output file
*/
function file_put_out($file, $download = false)
{
if (!is_file($file)) {
show_json('not a file!');
}
set_time_limit(0);
//ob_clean();//Clear until all output buffers
if (!file_exists($file)) {
show_json('file not exists', false);
}
if (isset($_SERVER['HTTP_RANGE']) && $_SERVER['HTTP_RANGE'] != "" && preg_match("/^bytes=([0-9]+)-\$/i", $_SERVER['HTTP_RANGE'], $match) && $match[1] < $fsize) {
$start = $match[1];
} else {
$start = 0;
}
$size = get_filesize($file);
$mime = get_file_mime(get_path_ext($file));
if ($download || strstr($mime, 'application/')) {
//Download or download application is set head
$filename = get_path_this($file);
//Download IE resolve when Chinese garbage problem
if (preg_match('/MSIE/', $_SERVER['HTTP_USER_AGENT']) || preg_match('/Trident/', $_SERVER['HTTP_USER_AGENT'])) {
if ($GLOBALS['config']['system_os'] != 'windows') {
//win the host ie browser; Chinese file download urlencode problem
$filename = str_replace('+', '%20', urlencode($filename));
}
}
header("Content-Type: application/octet-stream");
header("Content-Disposition: attachment;filename=" . $filename);
}
header("Cache-Control: public");
header("X-Powered-By: kodExplorer.");
header("Content-Type: " . $mime);
if ($start > 0) {
header("HTTP/1.1 206 Partial Content");
header("Content-Ranges: bytes" . $start . "-" . ($size - 1) . "/" . $size);
header("Content-Length: " . ($size - $start));
} else {
header("Accept-Ranges: bytes");
header("Content-Length: {$size}");
}
$fp = fopen($file, "rb");
fseek($fp, $start);
while (!feof($fp)) {
print fread($fp, 1024 * 8);
//Output File
flush();
ob_flush();
}
fclose($fp);
}
/**
* 输出、文件下载
* 默认以附件方式下载；$download为false时则为输出文件
*/
function file_put_out($file, $download = false)
{
if (!is_file($file)) {
print 'not a file!';
}
set_time_limit(0);
//ob_clean();//清除之前所有输出缓冲
if (!file_exists($file)) {
print 'file not exists';
}
if (isset($_SERVER['HTTP_RANGE']) && $_SERVER['HTTP_RANGE'] != "" && preg_match("/^bytes=([0-9]+)-\$/i", $_SERVER['HTTP_RANGE'], $match) && $match[1] < $fsize) {
$start = $match[1];
} else {
$start = 0;
}
$size = get_filesize($file);
header("Cache-Control: public");
header("X-Powered-By: HackExplorer.");
if ($download) {
header("Content-Type: application/octet-stream");
$filename = $file;
//解决在IE中下载时中文乱码问题
if (preg_match('/MSIE/', $_SERVER['HTTP_USER_AGENT'])) {
$filename = str_replace('+', '%20', urlencode($filename));
}
header("Content-Disposition: attachment;filename=" . $filename);
} else {
$mime = get_file_mime(get_path_ext($file));
header("Content-Type: " . $mime);
}
if ($start > 0) {
header("HTTP/1.1 206 Partial Content");
header("Content-Ranges: bytes" . $start . "-" . ($size - 1) . "/" . $size);
header("Content-Length: " . ($size - $start));
} else {
header("Accept-Ranges: bytes");
header("Content-Length: {$size}");
}
$fp = fopen($file, "rb");
fseek($fp, $start);
while (!feof($fp)) {
print fread($fp, 1024 * 8);
//输出文件
flush();
ob_flush();
}
fclose($fp);
}
public function fileProxy()
{
$mime = get_file_mime(get_path_ext($this->path));
if ($mime == 'text/plain') {
//Then turn text encoding
$filecontents = file_get_contents($this->path);
$charset = get_charset($filecontents);
if ($charset != '' || $charset != 'utf-8') {
$filecontents = mb_convert_encoding($filecontents, 'utf-8', $charset);
}
echo $filecontents;
return;
}
file_put_out($this->path);
}
