Files
tcms/bl-kernel/ajax/logo-upload.php
T
Ty Clifford cebb0d3af1 -
2026-07-03 07:31:09 -04:00

82 lines
2.5 KiB
PHP

<?php defined('BLUDIT') or die('Bludit CMS.');
header('Content-Type: application/json');
/*
| Upload site logo
| The final filename is the site's name and the extension is the same as the file uploaded
|
| @_FILES['inputFile'] multipart/form-data File from form
|
| @return array
*/
if (!isset($_FILES['inputFile'])) {
ajaxResponse(1, 'Error trying to upload the site logo.');
}
// Check path traversal on $filename
if (Text::stringContains($_FILES['inputFile']['name'], DS, false)) {
$message = 'Path traversal detected.';
Log::set($message, LOG_TYPE_ERROR);
ajaxResponse(1, $message);
}
// Block dotfiles
if (strpos($_FILES['inputFile']['name'], '.') === 0) {
$message = 'File type not allowed.';
Log::set($message, LOG_TYPE_ERROR);
ajaxResponse(1, $message);
}
// File extension
$fileExtension = Filesystem::extension($_FILES['inputFile']['name']);
$fileExtension = Text::lowercase($fileExtension);
if (!in_array($fileExtension, $GLOBALS['ALLOWED_IMG_EXTENSION'])) {
$message = $L->g('File type is not supported. Allowed types:') . ' ' . implode(', ', $GLOBALS['ALLOWED_IMG_EXTENSION']);
Log::set($message, LOG_TYPE_ERROR);
ajaxResponse(1, $message);
}
// File MIME Type
$fileMimeType = Filesystem::mimeType($_FILES['inputFile']['tmp_name']);
if ($fileMimeType !== false) {
if (!in_array($fileMimeType, $GLOBALS['ALLOWED_IMG_MIMETYPES'])) {
$message = $L->g('File mime type is not supported. Allowed types:') . ' ' . implode(', ', $GLOBALS['ALLOWED_IMG_MIMETYPES']);
Log::set($message, LOG_TYPE_ERROR);
ajaxResponse(1, $message);
}
}
// Final filename
$filename = 'logo.' . $fileExtension;
if (Text::isNotEmpty($site->title())) {
$sanitizedTitle = Text::removeSpecialCharacters($site->title(), '-');
$sanitizedTitle = Text::removeQuotes($sanitizedTitle);
$sanitizedTitle = Text::removeSpaces($sanitizedTitle, '-');
$sanitizedTitle = trim($sanitizedTitle, '-');
if (Text::isNotEmpty($sanitizedTitle)) {
$filename = $sanitizedTitle . '.' . $fileExtension;
}
}
// Delete old image
$oldFilename = $site->logo(false);
if ($oldFilename) {
Filesystem::rmfile(PATH_UPLOADS . $oldFilename);
}
// Move from temporary directory to uploads
Filesystem::mv($_FILES['inputFile']['tmp_name'], PATH_UPLOADS . $filename);
// Permissions
chmod(PATH_UPLOADS . $filename, 0644);
// Store the filename in the database
$site->set(array('logo' => $filename));
ajaxResponse(0, 'Image uploaded.', array(
'filename' => $filename,
'absoluteURL' => DOMAIN_UPLOADS . $filename,
'absolutePath' => PATH_UPLOADS . $filename
));