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?path1? @ 73  →  ?path2? @ 81
/file.php
@@ -18,8 +18,8 @@
if (!empty($_FILES['file']) and
is_uploaded_file($_FILES['file']['tmp_name'])) {
if($_FILES['file']['size'] > $config['ALLOWED_ASSET_SIZE'] * 1048576) {
header('File size exceeds '.$config['ALLOWED_ASSET_SIZE'].'MiB.', true, 403);
return;
http_response_code(403);
die('File size exceeds '.$config['ALLOWED_ASSET_SIZE'].'MiB.');
}
# Regular multipart/form-data upload.
$name = $_FILES['file']['name'];
@@ -26,8 +26,8 @@
$data = atomized_get_contents($_FILES['file']['tmp_name']);
} else {
if((int)get_file_size("php://input") > $config['ALLOWED_ASSET_SIZE'] * 1048576) {
header('File size exceeds '.$config['ALLOWED_ASSET_SIZE'].'MiB.', true, 403);
return;
http_response_code(403);
die('File size exceeds '.$config['ALLOWED_ASSET_SIZE'].'MiB.');
}
# Raw POST data.
$name = urldecode(@$_SERVER['HTTP_X_FILE_NAME']);
@@ -41,8 +41,8 @@
if (!isset($fileExtension) ||
!in_array(strtoupper($fileExtension),
array_map('strtoupper', $config['ALLOWED_FILE_EXTENSIONS']))) {
header('File extension not allowed.', true, 403);
return;
http_response_code(403);
die('File extension not allowed.');
}
#### Hash filename.
@@ -73,34 +73,41 @@
$pathPart = pathinfo($userPath.'.'.$fileExtension);
if (strcasecmp(
realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) {
header('Internal server error.', true, 500);
return;
http_response_code(500);
die('Internal server error.');
}
 
#### Store the file.
atomized_put_contents($userPath.'.'.$fileExtension, $data);
$timestamp = atomized_put_contents($userPath.'.'.$fileExtension, $data);
 
### Return the URL to the file.
header('Content-Type: text/plain; charset=utf-8');
echo $file;
echo json_encode(
array(
"hash" => $file,
"timestamp" => $timestamp
)
);
break;
case 'GET':
### If no file has been specified for download then return.
if (!isset($_GET['o']) or empty($_GET['o'])) {
header('File not found.', true, 404);
return;
if (!isset($_GET['hash']) or empty($_GET['hash'])) {
http_response_code(404);
die('File not found.');
}
 
### Find the requested file.
$file = array_shift(
preg_grep(
"/$_GET[o]/",
'/'.$_GET['hash'].'/',
scandir($config['STORE_FOLDER'])
)
);
 
if (!isset($file) or empty($file))
return;
if (!isset($file) or empty($file)) {
http_response_code(404);
die('File not found.');
}
### Check the path for path traversals.
$fileExtension = pathinfo($file, PATHINFO_EXTENSION);
@@ -109,8 +116,8 @@
if (!isset($fileExtension) ||
!in_array(strtoupper($fileExtension),
array_map('strtoupper', $config['ALLOWED_FILE_EXTENSIONS']))) {
header('File extension not allowed.', true, 403);
return;
http_response_code(403);
die('File extension not allowed.');
}
#### Build the user path.
@@ -126,8 +133,8 @@
$pathPart = pathinfo($userPath);
if (strcasecmp(
realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) {
header('Internal server error.', true, 500);
return;
http_response_code(500);
die('Internal server error.');
}
 
### Hook for HTML files to display properly.
@@ -141,8 +148,8 @@
### Open MIME info database and send the content type.
$finfo = finfo_open(FILEINFO_MIME_TYPE);
if (!$finfo) {
header('Internal server error.', true, 500);
return;
http_response_code(500);
die('Internal server error.');
}
header('Content-type: '.finfo_file($finfo, $userPath));
finfo_close($finfo);
@@ -149,6 +156,10 @@
break;
}
### Tell browser not to cache files.
header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
### Send the file along with the inline content disposition.
header('Content-length: '.(int)get_file_size($userPath));
header('Content-Disposition: inline; filename="' . basename($userPath) . '"');