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103 lines
3.6 KiB
PHP
103 lines
3.6 KiB
PHP
<?php
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/*
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* upload2usb.php
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* Upload2USB App Helper Functions
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*/
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set_exception_handler(function (Throwable $exception) {
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error_log('UPLOAD2USB ERROR: ' . (string)$exception);
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include ("error.php");
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});
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//return the first removable USB drive location
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function getTargetUSBDriveLocation () {
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// Get the first removal USB drive using
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// lsblk --output NAME,TRAN,RM,MOUNTPOINT --pairs |grep RM=\"1\" | grep -v MOUNTPOINT=\"\" |grep -oP '[^/]MOUNTPOINT="\K[^"]*' -m 1
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// lsblk --output NAME,TRAN,RM,MOUNTPOINT --pairs |grep RM=\"1\" | grep -v MOUNTPOINT=\"\" | cut -d " " -f 4 | cut -d "=" -f 2
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# error if 1<>usb sticks are installed
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$rmv_usb_path_count = shell_exec('lsblk --output NAME,TRAN,RM,MOUNTPOINT --pairs |grep RM=\"1\" | grep -v MOUNTPOINT=\"\" | cut -d " " -f 4 | wc -l');
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if ($rmv_usb_path_count == 0) {
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throw new RuntimeException('0 USB sticks found. <br/><br/>');
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} elseif ($rmv_usb_path_count > 1) {
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throw new RuntimeException('More than 1 USB sticks installed. <br/><br/>');
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}
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$rmv_usb_path = trim(str_replace('"', '', shell_exec('lsblk --output NAME,TRAN,RM,MOUNTPOINT --pairs |grep RM=\"1\" | grep -v MOUNTPOINT=\"\" | cut -d " " -f 4 | cut -d "=" -f 2')));
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if (empty($rmv_usb_path)) {
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throw new RuntimeException('Not able to find USB stick. <br/><br/>');
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} else {
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return $rmv_usb_path . "/";
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}
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}
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//returns folder path where file will be stored, if create_folder_p = 1, it will create the folder if it doesn't exist
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function getTargetFolderPath ($create_folder_p) {
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$parent_dir = getTargetUSBDriveLocation();
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$today_folder_name = "UPLOADS." . date("Y-m-d");
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$target_folder_path = $parent_dir . $today_folder_name;
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if (!file_exists($target_folder_path) && $create_folder_p) {
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mkdir($target_folder_path, 0777) or throw new RuntimeException("Not able to create upload directory. <br/>Make sure 'usb_lib_umask0000_for_kolibri' is set to 'True'. <br/><br/>");
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}
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return $target_folder_path;
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}
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//return number of files within a specified folder
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function getFileCount ($folder_path) {
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return count(glob($folder_path . "/*"));
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}
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//check if file mimetype is acceptable for upload
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function isFileMimeTypeAcceptable ($file) {
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$mimetype = strtolower(mime_content_type($file));
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$invalid_mimetypes_str = array ("compress", "octet", "xml", "zip");
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foreach ($invalid_mimetypes_str as $invalid_mt_str) {
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if (str_contains($mimetype, $invalid_mt_str)) {
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return false;
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}
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}
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return true;
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}
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//check file content to see if it's unique or not
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function isFileContentUnique ($target_folder_path, $file) {
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$file_to_upload_md5 = md5_file($file);
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$usb_dir = array_diff(scandir($target_folder_path), array('..', '.'));
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foreach ($usb_dir as $dir_file) {
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$dir_file = $target_folder_path . "/" . $dir_file;
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if (!is_dir($dir_file)) {
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$dir_file_md5 = md5_file($dir_file);
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if ($file_to_upload_md5 == $dir_file_md5) {
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return false;
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}
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}
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}
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return true;
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}
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//return unique filename
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function getUniqueFileName ($target_folder_path, $filename) {
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$new_filename = $filename;
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$counter = 1;
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while (file_exists($target_folder_path . "/" . $new_filename)) {
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$counter++;
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$new_filename = pathinfo($filename,8) . '-'. $counter . "." . pathinfo($filename,4);
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}
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return $new_filename;
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}
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// Check file size - we are not going to check file size for now.
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// elseif ($_FILES["uploaded_file"]["size"] > 5000000) {
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// $upload_msg = "Your file is too large.";
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// $upload_ok = 0;
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// }
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?>
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