Afbeelding downloaden lukt niet
ik heb een scriptje om afbeeldingen te uploaden, werkend. en nu probeer ik ze te downloaden. via ftp krijg ik het plaatje goed binnen maar als ik een download script ervoor gebruik dan krijg ik een jpeg maar zonder een breedte of hoogte. hoe kan ik dit oplossen?
voorbeeld:
http://home.aim.avans.nl/schmkoen/download.php?f=Tulips.jpg
- stormstar
Code (php)
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<?php
downloads when referrer contains this text
define('ALLOWED_REFERRER', '');
define('BASE_DIR','upload');
define('LOG_DOWNLOADS',true);
define('LOG_FILE','downloads.log');
$allowed_ext = array (
// archives
'zip' => 'application/zip',
// documents
'pdf' => 'application/pdf',
'doc' => 'application/msword',
'xls' => 'application/vnd.ms-excel',
'ppt' => 'application/vnd.ms-powerpoint',
// executables
'exe' => 'application/octet-stream',
// images
'gif' => 'image/gif',
'png' => 'image/png',
'jpg' => 'image/jpeg',
'jpeg' => 'image/jpeg',
// audio
'mp3' => 'audio/mpeg',
'wav' => 'audio/x-wav',
// video
'mpeg' => 'video/mpeg',
'mpg' => 'video/mpeg',
'mpe' => 'video/mpeg',
'mov' => 'video/quicktime',
'avi' => 'video/x-msvideo'
);
if (ALLOWED_REFERRER !== ''
&& (!isset($_SERVER['HTTP_REFERER']) || strpos(strtoupper($_SERVER['HTTP_REFERER']),strtoupper(ALLOWED_REFERRER)) === false)
) {
die("Internal server error. Please contact system administrator.");
}
set_time_limit(0);
if (!isset($_GET['f']) || empty($_GET['f'])) {
die("Please specify file name for download.");
}
$fname = basename($_GET['f']);
function find_file ($dirname, $fname, &$file_path) {
$dir = opendir($dirname);
while ($file = readdir($dir)) {
if (empty($file_path) && $file != '.' && $file != '..') {
if (is_dir($dirname.'/'.$file)) {
find_file($dirname.'/'.$file, $fname, $file_path);
}
else {
if (file_exists($dirname.'/'.$fname)) {
$file_path = $dirname.'/'.$fname;
return;
}
}
}
}
}
$file_path = '';
find_file(BASE_DIR, $fname, $file_path);
if (!is_file($file_path)) {
die("File does not exist. Make sure you specified correct file name.");
}
$fsize = filesize($file_path);
$fext = strtolower(substr(strrchr($fname,"."),1));
if (!array_key_exists($fext, $allowed_ext)) {
die("Not allowed file type.");
}
if ($allowed_ext[$fext] == '') {
$mtype = '';
if (function_exists('mime_content_type')) {
$mtype = mime_content_type($file_path);
}
else if (function_exists('finfo_file')) {
$finfo = finfo_open(FILEINFO_MIME); // return mime type
$mtype = finfo_file($finfo, $file_path);
finfo_close($finfo);
}
if ($mtype == '') {
$mtype = "application/force-download";
}
}
else {
$mtype = $allowed_ext[$fext];
}
if (!isset($_GET['fc']) || empty($_GET['fc'])) {
$asfname = $fname;
}
else {
$asfname = str_replace(array('"',"'",'\\','/'), '', $_GET['fc']);
if ($asfname === '') $asfname = 'NoName';
}
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Type: $mtype");
header("Content-Disposition: attachment; filename=\"$asfname\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . $fsize);
$file = @fopen($file_path,"rb");
if ($file) {
while(!feof($file)) {
print(fread($file, 1024*8));
flush();
if (connection_status()!=0) {
@fclose($file);
die();
}
}
@fclose($file);
}
if (!LOG_DOWNLOADS) die();
$f = @fopen(LOG_FILE, 'a+');
if ($f) {
@fputs($f, date("m.d.Y g:ia")." ".$_SERVER['REMOTE_ADDR']." ".$fname."\n");
@fclose($f);
}
?>
downloads when referrer contains this text
define('ALLOWED_REFERRER', '');
define('BASE_DIR','upload');
define('LOG_DOWNLOADS',true);
define('LOG_FILE','downloads.log');
$allowed_ext = array (
// archives
'zip' => 'application/zip',
// documents
'pdf' => 'application/pdf',
'doc' => 'application/msword',
'xls' => 'application/vnd.ms-excel',
'ppt' => 'application/vnd.ms-powerpoint',
// executables
'exe' => 'application/octet-stream',
// images
'gif' => 'image/gif',
'png' => 'image/png',
'jpg' => 'image/jpeg',
'jpeg' => 'image/jpeg',
// audio
'mp3' => 'audio/mpeg',
'wav' => 'audio/x-wav',
// video
'mpeg' => 'video/mpeg',
'mpg' => 'video/mpeg',
'mpe' => 'video/mpeg',
'mov' => 'video/quicktime',
'avi' => 'video/x-msvideo'
);
if (ALLOWED_REFERRER !== ''
&& (!isset($_SERVER['HTTP_REFERER']) || strpos(strtoupper($_SERVER['HTTP_REFERER']),strtoupper(ALLOWED_REFERRER)) === false)
) {
die("Internal server error. Please contact system administrator.");
}
set_time_limit(0);
if (!isset($_GET['f']) || empty($_GET['f'])) {
die("Please specify file name for download.");
}
$fname = basename($_GET['f']);
function find_file ($dirname, $fname, &$file_path) {
$dir = opendir($dirname);
while ($file = readdir($dir)) {
if (empty($file_path) && $file != '.' && $file != '..') {
if (is_dir($dirname.'/'.$file)) {
find_file($dirname.'/'.$file, $fname, $file_path);
}
else {
if (file_exists($dirname.'/'.$fname)) {
$file_path = $dirname.'/'.$fname;
return;
}
}
}
}
}
$file_path = '';
find_file(BASE_DIR, $fname, $file_path);
if (!is_file($file_path)) {
die("File does not exist. Make sure you specified correct file name.");
}
$fsize = filesize($file_path);
$fext = strtolower(substr(strrchr($fname,"."),1));
if (!array_key_exists($fext, $allowed_ext)) {
die("Not allowed file type.");
}
if ($allowed_ext[$fext] == '') {
$mtype = '';
if (function_exists('mime_content_type')) {
$mtype = mime_content_type($file_path);
}
else if (function_exists('finfo_file')) {
$finfo = finfo_open(FILEINFO_MIME); // return mime type
$mtype = finfo_file($finfo, $file_path);
finfo_close($finfo);
}
if ($mtype == '') {
$mtype = "application/force-download";
}
}
else {
$mtype = $allowed_ext[$fext];
}
if (!isset($_GET['fc']) || empty($_GET['fc'])) {
$asfname = $fname;
}
else {
$asfname = str_replace(array('"',"'",'\\','/'), '', $_GET['fc']);
if ($asfname === '') $asfname = 'NoName';
}
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Type: $mtype");
header("Content-Disposition: attachment; filename=\"$asfname\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . $fsize);
$file = @fopen($file_path,"rb");
if ($file) {
while(!feof($file)) {
print(fread($file, 1024*8));
flush();
if (connection_status()!=0) {
@fclose($file);
die();
}
}
@fclose($file);
}
if (!LOG_DOWNLOADS) die();
$f = @fopen(LOG_FILE, 'a+');
if ($f) {
@fputs($f, date("m.d.Y g:ia")." ".$_SERVER['REMOTE_ADDR']." ".$fname."\n");
@fclose($f);
}
?>