+++ /dev/null
-<?php
-/**
- * Handles POST uploads, generates filenames, moves files around and commits
- * uploaded metadata to database.
- */
-
-require_once 'classes/Response.class.php';
-require_once 'classes/UploadException.class.php';
-require_once 'classes/UploadedFile.class.php';
-require_once 'includes/database.inc.php';
-
-/**
- * Generates a random name for the file, retrying until we get an unused one.
- *
- * @param UploadedFile $file
- *
- * @return string
- */
-function generateName($file)
-{
- global $db;
- global $doubledots;
-
- // We start at N retries, and --N until we give up
- $tries = POMF_FILES_RETRIES;
- $length = POMF_FILES_LENGTH;
- //Get EXT
- $ext = pathinfo($file->name, PATHINFO_EXTENSION);
- //Get mime
- $finfo = finfo_open(FILEINFO_MIME_TYPE);
- $type_mime = finfo_file($finfo, $file->tempfile);
- finfo_close($finfo);
-
- // Check if extension is a double-dot extension and, if true, override $ext
- $revname = strrev($file->name);
- foreach ($doubledots as $ddot) {
- if (stripos($revname, $ddot) === 0) {
- $ext = strrev($ddot);
- }
- }
-
- do {
- // Iterate until we reach the maximum number of retries
- if ($tries-- === 0) {
- http_response_code(500);
- throw new Exception(
- 'Gave up trying to find an unused name',
- 500
- ); // HTTP status code "500 Internal Server Error"
- }
-
- $chars = ID_CHARSET;
- $name = '';
- for ($i = 0; $i < $length; ++$i) {
- $name .= $chars[mt_rand(0, strlen($chars))];
- }
-
- // Add the extension to the file name
- if (isset($ext) && $ext !== '') {
- $name .= '.'.$ext;
- }
-
- //Check if mime is blacklisted
- if (in_array($type_mime, unserialize(CONFIG_BLOCKED_MIME))) {
- http_response_code(415);
- throw new Exception ('Extension type not allowed.');
- exit(0);
- }
-
-
- //Check if EXT is blacklisted
- if (in_array($ext, unserialize(CONFIG_BLOCKED_EXTENSIONS))) {
- http_response_code(415);
- throw new Exception ('Extension type not allowed.');
- exit(0);
- }
-
- // Check blacklist DB
- $q = $db->prepare('SELECT hash, COUNT(*) AS count FROM blacklistedfiles WHERE hash = (:hash)');
- $q->bindValue(':hash', $file->getSha1(), PDO::PARAM_STR);
- $q->execute();
- $result = $q->fetch();
- if ($result['count'] > 0) {
- http_response_code(415);
- throw new UploadException(UPLOAD_ERR_BLACKLISTED);
- exit(0);
- }
-
- // Check if a file with the same name does already exist in the database
- $q = $db->prepare('SELECT COUNT(filename) FROM files WHERE filename = (:name)');
- $q->bindValue(':name', $name, PDO::PARAM_STR);
- $q->execute();
- $result = $q->fetchColumn();
- // If it does, generate a new name
- } while ($result > 0);
- return $name;
- }
-
-/**
- * Handles the uploading and db entry for a file.
- *
- * @param UploadedFile $file
- *
- * @return array
- */
-function uploadFile($file)
-{
- global $db;
- global $FILTER_MODE;
- global $FILTER_MIME;
-
- // Handle file errors
- if ($file->error) {
- throw new UploadException($file->error);
- }
-
- // Generate a name for the file
- $newname = generateName($file);
-
- // Get IP
- $ip = $_SERVER['REMOTE_ADDR'];
-
- // Store the file's full file path in memory
- $uploadFile = POMF_FILES_ROOT . $newname;
-
- // Attempt to move it to the static directory
- if (!move_uploaded_file($file->tempfile, $uploadFile)) {
- http_response_code(500);
- throw new Exception(
- 'Failed to move file to destination',
- 500
- ); // HTTP status code "500 Internal Server Error"
- }
-
- // Need to change permissions for the new file to make it world readable
- if (!chmod($uploadFile, 0644)) {
- http_response_code(500);
- throw new Exception(
- 'Failed to change file permissions',
- 500
- ); // HTTP status code "500 Internal Server Error"
- }
-
- // Add it to the database
- if(LOG_IP == 'yes'){
- $q = $db->prepare('INSERT INTO files (hash, originalname, filename, size, date, ip) VALUES (:hash, :orig, :name, :size, :date, :ip)');
- }else{
- $q = $db->prepare('INSERT INTO files (hash, originalname, filename, size, date) VALUES (:hash, :orig, :name, :size, :date)');
- }
- // Common parameters binding
- $q->bindValue(':hash', $file->getSha1(), PDO::PARAM_STR);
- $q->bindValue(':orig', strip_tags($file->name), PDO::PARAM_STR);
- $q->bindValue(':name', $newname, PDO::PARAM_STR);
- $q->bindValue(':size', $file->size, PDO::PARAM_INT);
- $q->bindValue(':date', time(), PDO::PARAM_INT);
- $q->bindValue(':ip', $ip, PDO::PARAM_STR);
- $q->execute();
-
- return array(
- 'hash' => $file->getSha1(),
- 'name' => $file->name,
- 'url' => POMF_URL.rawurlencode($newname),
- 'size' => $file->size,
- );
-}
-
-/**
- * Reorder files array by file.
- *
- * @param $_FILES
- *
- * @return array
- */
-function diverseArray($files)
-{
- $result = array();
-
- foreach ($files as $key1 => $value1) {
- foreach ($value1 as $key2 => $value2) {
- $result[$key2][$key1] = $value2;
- }
- }
-
- return $result;
-}
-
-/**
- * Reorganize the $_FILES array into something saner.
- *
- * @param $_FILES
- *
- * @return array
- */
-function refiles($files)
-{
- $result = array();
- $files = diverseArray($files);
-
- foreach ($files as $file) {
- $f = new UploadedFile();
- $f->name = $file['name'];
- $f->mime = $file['type'];
- $f->size = $file['size'];
- $f->tempfile = $file['tmp_name'];
- $f->error = $file['error'];
- $result[] = $f;
- }
-
- return $result;
-}
-
-$type = isset($_GET['output']) ? $_GET['output'] : 'json';
-$response = new Response($type);
-
-if (isset($_FILES['files'])) {
- $uploads = refiles($_FILES['files']);
-
- try {
- foreach ($uploads as $upload) {
- $res[] = uploadFile($upload);
- }
- $response->send($res);
- } catch (Exception $e) {
- $response->error($e->getCode(), $e->getMessage());
- }
-} else {
- $response->error(400, 'No input file(s)');
-}