Move php directory to php/ to avoid confusion

7 files changed, 750 insertions, 0 deletions

diff --git a/php/classes/Response.class.php b/php/classes/Response.class.php
new file mode 100755
index 0000000..fac7db5
--- /dev/null
+++ b/php/classes/Response.class.php
@@ -0,0 +1,242 @@
+<?php
+/**
+ * The Response class is a do-it-all for getting responses out in different
+ * formats.
+ *
+ * @todo Create sub-classes to split and extend this god object.
+ */
+class Response
+{
+    /**
+     * Indicates response type used for routing.
+     *
+     * Valid strings are 'csv', 'html', 'json' and 'text'.
+     *
+     * @var string $type Response type
+     */
+    private $type;
+
+    /**
+     * Indicates requested response type.
+     *
+     * Valid strings are 'csv', 'html', 'json', 'gyazo' and 'text'.
+     *
+     * @param string|null $response_type Response type
+     */
+    public function __construct($response_type = null)
+    {
+        switch ($response_type) {
+            case 'csv':
+                header('Content-Type: text/csv; charset=UTF-8');
+                $this->type = $response_type;
+                break;
+            case 'html':
+                header('Content-Type: text/html; charset=UTF-8');
+                $this->type = $response_type;
+                break;
+            case 'json':
+                header('Content-Type: application/json; charset=UTF-8');
+                $this->type = $response_type;
+                break;
+            case 'gyazo':
+                // Deprecated API since version 2.0.0, fallback to similar text API
+                header('Content-Type: text/plain; charset=UTF-8');
+                $this->type = 'text';
+                break;
+            case 'text':
+                header('Content-Type: text/plain; charset=UTF-8');
+                $this->type = $response_type;
+                break;
+            default:
+                header('Content-Type: application/json; charset=UTF-8');
+                $this->type = 'json';
+                $this->error(400, 'Invalid response type. Valid options are: csv, html, json, text.');
+                break;
+        }
+    }
+
+    /**
+     * Routes error messages depending on response type.
+     *
+     * @param int $code HTTP status code number.
+     * @param int $desc Descriptive error message.
+     * @return void
+     */
+    public function error($code, $desc)
+    {
+        $response = null;
+
+        switch ($this->type) {
+            case 'csv':
+                $response = $this->csvError($desc);
+                break;
+            case 'html':
+                $response = $this->htmlError($code, $desc);
+                break;
+            case 'json':
+                $response = $this->jsonError($code, $desc);
+                break;
+            case 'text':
+                $response = $this->textError($code, $desc);
+                break;
+        }
+
+        http_response_code(500); // "500 Internal Server Error"
+        echo $response;
+    }
+
+    /**
+     * Routes success messages depending on response type.
+     *
+     * @param mixed[] $files
+     * @return void
+     */
+    public function send($files)
+    {
+        $response = null;
+
+        switch ($this->type) {
+            case 'csv':
+                $response = $this->csvSuccess($files);
+                break;
+            case 'html':
+                $response = $this->htmlSuccess($files);
+                break;
+            case 'json':
+                $response = $this->jsonSuccess($files);
+                break;
+            case 'text':
+                $response = $this->textSuccess($files);
+                break;
+        }
+
+        http_response_code(200); // "200 OK". Success.
+        echo $response;
+    }
+
+    /**
+     * Indicates with CSV body the request was invalid.
+     *
+     * @deprecated 2.1.0 Will be renamed to camelCase format.
+     * @param int $description Descriptive error message.
+     * @return string Error message in CSV format.
+     */
+    private static function csvError($description)
+    {
+        return '"error"'."\r\n"."\"$description\""."\r\n";
+    }
+
+    /**
+     * Indicates with CSV body the request was successful.
+     *
+     * @deprecated 2.1.0 Will be renamed to camelCase format.
+     * @param mixed[] $files
+     * @return string Success message in CSV format.
+     */
+    private static function csvSuccess($files)
+    {
+        $result = '"name","url","hash","size"'."\r\n";
+        foreach ($files as $file) {
+            $result .= '"'.$file['name'].'"'.','.
+                       '"'.$file['url'].'"'.','.
+                       '"'.$file['hash'].'"'.','.
+                       '"'.$file['size'].'"'."\r\n";
+        }
+
+        return $result;
+    }
+
+    /**
+     * Indicates with HTML body the request was invalid.
+     *
+     * @deprecated 2.1.0 Will be renamed to camelCase format.
+     * @param int $code HTTP status code number.
+     * @param int $description Descriptive error message.
+     * @return string Error message in HTML format.
+     */
+    private static function htmlError($code, $description)
+    {
+        return '<p>ERROR: ('.$code.') '.$description.'</p>';
+    }
+
+    /**
+     * Indicates with HTML body the request was successful.
+     *
+     * @deprecated 2.1.0 Will be renamed to camelCase format.
+     * @param mixed[] $files
+     * @return string Success message in HTML format.
+     */
+    private static function htmlSuccess($files)
+    {
+        $result = '';
+
+        foreach ($files as $file) {
+            $result .=  '<a href="'.$file['url'].'">'.$file['url'].'</a><br>';
+        }
+
+        return $result;
+    }
+
+    /**
+     * Indicates with JSON body the request was invalid.
+     *
+     * @deprecated 2.1.0 Will be renamed to camelCase format.
+     * @param int $code HTTP status code number.
+     * @param int $description Descriptive error message.
+     * @return string Error message in pretty-printed JSON format.
+     */
+    private static function jsonError($code, $description)
+    {
+        return json_encode(array(
+            'success' => false,
+            'errorcode' => $code,
+            'description' => $description,
+        ), JSON_PRETTY_PRINT);
+    }
+
+    /**
+     * Indicates with JSON body the request was successful.
+     *
+     * @deprecated 2.1.0 Will be renamed to camelCase format.
+     * @param mixed[] $files
+     * @return string Success message in pretty-printed JSON format.
+     */
+    private static function jsonSuccess($files)
+    {
+        return json_encode(array(
+            'success' => true,
+            'files' => $files,
+        ), JSON_PRETTY_PRINT);
+    }
+
+    /**
+     * Indicates with plain text body the request was invalid.
+     *
+     * @deprecated 2.1.0 Will be renamed to camelCase format.
+     * @param int $code HTTP status code number.
+     * @param int $description Descriptive error message.
+     * @return string Error message in plain text format.
+     */
+    private static function text_error($code, $description)
+    {
+        return 'ERROR: ('.$code.') '.$description;
+    }
+
+    /**
+     * Indicates with plain text body the request was successful.
+     *
+     * @deprecated 2.1.0 Will be renamed to camelCase format.
+     * @param mixed[] $files
+     * @return string Success message in plain text format.
+     */
+    private static function text_success($files)
+    {
+        $result = '';
+
+        foreach ($files as $file) {
+            $result .= $file['url']."\n";
+        }
+
+        return $result;
+    }
+}
diff --git a/php/classes/UploadException.class.php b/php/classes/UploadException.class.php
new file mode 100755
index 0000000..7740ee6
--- /dev/null
+++ b/php/classes/UploadException.class.php
@@ -0,0 +1,120 @@
+<?php
+
+/**
+ * Returns a human readable error description for file upload errors.
+ *
+ * @author Dan Brown <danbrown@php.net>
+ * @author Michiel Thalen
+ * @copyright
+ * -------------------------------------------------------------------- 
+ *                   The PHP License, version 3.01
+ * Copyright (c) 1999 - 2014 The PHP Group. All rights reserved.
+ * -------------------------------------------------------------------- 
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, is permitted provided that the following conditions
+ * are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in
+ *      the documentation and/or other materials provided with the
+ *      distribution.
+ *
+ *   3. The name "PHP" must not be used to endorse or promote products
+ *      derived from this software without prior written permission. For
+ *      written permission, please contact group@php.net.
+ *
+ *   4. Products derived from this software may not be called "PHP", nor
+ *      may "PHP" appear in their name, without prior written permission
+ *      from group@php.net.  You may indicate that your software works in
+ *      conjunction with PHP by saying "Foo for PHP" instead of calling
+ *      it "PHP Foo" or "phpfoo"
+ *
+ *   5. The PHP Group may publish revised and/or new versions of the
+ *      license from time to time. Each version will be given a
+ *      distinguishing version number.
+ *      Once covered code has been published under a particular version
+ *      of the license, you may always continue to use it under the terms
+ *      of that version. You may also choose to use such covered code
+ *      under the terms of any subsequent version of the license
+ *      published by the PHP Group. No one other than the PHP Group has
+ *      the right to modify the terms applicable to covered code created
+ *      under this License.
+ *
+ *   6. Redistributions of any form whatsoever must retain the following
+ *      acknowledgment:
+ *      "This product includes PHP software, freely available from
+ *      <http://www.php.net/software/>".
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PHP DEVELOPMENT TEAM ``AS IS'' AND 
+ * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 
+ * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE PHP
+ * DEVELOPMENT TEAM OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * -------------------------------------------------------------------- 
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the PHP Group.
+ *
+ * The PHP Group can be contacted via Email at group@php.net.
+ *
+ * For more information on the PHP Group and the PHP project, 
+ * please see <http://www.php.net>.
+ *
+ * PHP includes the Zend Engine, freely available at
+ * <http://www.zend.com>.
+ */
+
+class UploadException extends Exception
+{
+    public function __construct($code)
+    {
+        $message = $this->codeToMessage($code);
+        parent::__construct($message, 500);
+    }
+
+    private function codeToMessage($code)
+    {
+        switch ($code) {
+            case UPLOAD_ERR_INI_SIZE:
+                $message = 'The uploaded file exceeds the upload_max_filesize directive in php.ini';
+                break;
+            case UPLOAD_ERR_FORM_SIZE:
+                $message = 'The uploaded file exceeds the MAX_FILE_SIZE directive that was '.
+                           'specified in the HTML form';
+                break;
+            case UPLOAD_ERR_PARTIAL:
+                $message = 'The uploaded file was only partially uploaded';
+                break;
+            case UPLOAD_ERR_NO_FILE:
+                $message = 'No file was uploaded';
+                break;
+            case UPLOAD_ERR_NO_TMP_DIR:
+                $message = 'Missing a temporary folder';
+                break;
+            case UPLOAD_ERR_CANT_WRITE:
+                $message = 'Failed to write file to disk';
+                break;
+            case UPLOAD_ERR_EXTENSION:
+                $message = 'File upload stopped by extension';
+                break;
+
+            default:
+                $message = 'Unknown upload error';
+                break;
+        }
+
+        return $message;
+    }
+}
diff --git a/php/classes/UploadedFile.class.php b/php/classes/UploadedFile.class.php
new file mode 100644
index 0000000..03b7429
--- /dev/null
+++ b/php/classes/UploadedFile.class.php
@@ -0,0 +1,33 @@
+<?php
+
+class UploadedFile
+{
+    /* Public attributes */
+    public $name;
+    public $mime;
+    public $size;
+    public $tempfile;
+    public $error;
+
+    /**
+     * SHA-1 checksum
+     *
+     * @deprecated 2.1.0 To be replaced with SHA-256 hashing.
+     * @var string 40 digit hexadecimal hash (160 bits)
+     */
+    private $sha1;
+
+    /**
+     * Generates the SHA-1 or returns the cached SHA-1 hash for the file.
+     *
+     * @return string|false $sha1
+     */
+    public function getSha1()
+    {
+        if (!$this->sha1) {
+            $this->sha1 = sha1_file($this->tempfile);
+        }
+
+        return $this->sha1;
+    }
+}
diff --git a/php/grill.php b/php/grill.php
new file mode 100644
index 0000000..5984b12
--- /dev/null
+++ b/php/grill.php
@@ -0,0 +1,17 @@
+<?php
+
+$images = array(
+    'img/2.png',
+    'img/3.png',
+    'img/4.png',
+    'img/5.png',
+    'img/6.png',
+    'img/7.png',
+    'img/8.png',
+    'img/9.png',
+    'img/10.png',
+);
+
+if (headers_sent() === false) {
+    header('Location: '.$images[array_rand($images)], true, 303);
+}
diff --git a/php/includes/database.inc.php b/php/includes/database.inc.php
new file mode 100644
index 0000000..7a1d4f9
--- /dev/null
+++ b/php/includes/database.inc.php
@@ -0,0 +1,30 @@
+<?php
+
+/**
+ * Prepares a PDO connection between Pomf and a database server.
+ *
+ * @copyright Copyright (c) 2013 Peter Lejeck <peter.lejeck@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+require_once 'settings.inc.php';
+
+/* NOTE: we don't have to unref the PDO because we're not long-running */
+$db = new PDO(POMF_DB_CONN, POMF_DB_USER, POMF_DB_PASS);
diff --git a/php/includes/settings.inc.php b/php/includes/settings.inc.php
new file mode 100644
index 0000000..872fde0
--- /dev/null
+++ b/php/includes/settings.inc.php
@@ -0,0 +1,100 @@
+<?php
+
+/**
+ * User configurable settings for Pomf.
+ *
+ * @copyright Copyright (c) 2013, 2014 Peter Lejeck <peter.lejeck@gmail.com>
+ * @copyright Copyright (c) 2015 cenci0 <alchimist94@gmail.com>
+ * @copyright Copyright (c) 2015, 2016 the Pantsu.cat developers
+ * <hostmaster@pantsu.cat>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * PDO connection socket
+ *
+ * Database connection to use for communication. Currently, MySQL is the only
+ * DSN prefix supported.
+ *
+ * @see http://php.net/manual/en/ref.pdo-mysql.connection.php PHP manual for
+ * PDO_MYSQL DSN.
+ * @param string POMF_DB_CONN DSN:host|unix_socket=hostname|path;dbname=database
+ */
+define('POMF_DB_CONN', 'mysql:unix_socket=/tmp/mysql.sock;dbname=pomf');
+
+/**
+ * PDO database login credentials
+ */
+
+/** @param string POMF_DB_NAME Database username */
+define('POMF_DB_USER', 'pomf');
+/** @param string POMF_DB_PASS Database password */
+define('POMF_DB_PASS', '***');
+
+/**
+ * File system location where to store uploaded files
+ *
+ * @param string Path to directory with trailing delimiter
+ */
+define('POMF_FILES_ROOT', '/mnt/pantsu/http/files/');
+
+/**
+ * Maximum number of iterations while generating a new filename
+ *
+ * Pomf uses an algorithm to generate random filenames. Sometimes a file may
+ * exist under a randomly generated filename, so we count tries and keep trying.
+ * If this value is exceeded, we give up trying to generate a new filename.
+ *
+ * @param int POMF_FILES_RETRIES Number of attempts to retry
+ */
+define('POMF_FILES_RETRIES', 15);
+
+/**
+ * The length of generated filename (without file extension)
+ *
+ * @param int POMF_FILES_LENGTH Number of random alphabetical ASCII characters
+ * to use
+ */
+define('POMF_FILES_LENGTH', 6);
+
+/**
+ * URI to prepend to links for uploaded files
+ *
+ * @param string POMF_URL URI with trailing delimiter
+ */
+define('POMF_URL', 'https://i.pantsu.cat/');
+
+/**
+ * Double dot file extensions
+ *
+ * Pomf keeps the last file extension for the uploaded file. In other words, an
+ * uploaded file with `.tar.gz` extension will be given a random filename which
+ * ends in `.gz` unless configured here to ignore discards for `.tar.gz`.
+ *
+ * @param string[] $doubledots Array of double dot file extensions strings
+ * without the first prefixing dot
+ */
+$doubledots = array_map('strrev', array(
+    'tar.gz',
+    'tar.bz',
+    'tar.bz2',
+    'tar.xz',
+    'user.js',
+));
diff --git a/php/upload.php b/php/upload.php
new file mode 100644
index 0000000..476120b
--- /dev/null
+++ b/php/upload.php
@@ -0,0 +1,208 @@
+<?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;
+    $ext = pathinfo($file->name, PATHINFO_EXTENSION);
+
+    // 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) {
+            throw new Exception('Gave up trying to find an unused name',
+                500); // HTTP status code "500 Internal Server Error"
+        }
+
+        $chars = range('a', 'z');
+        $name = '';
+        for ($i = 0; $i < $length; ++$i) {
+            $name .= $chars[array_rand($chars)];
+        }
+
+        // Add the extension to the file name
+        if (isset($ext) && $ext !== '') {
+            $name .= '.'.strip_tags($ext);
+        }
+
+        // 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 $db;
+
+    // Handle file errors
+    if ($file->error) {
+        throw new UploadException($file->error);
+    }
+
+    // Check if a file with the same hash and size (a file which is the same)
+    // does already exist in the database; if it does, return the proper link
+    // and data. PHP deletes the temporary file just uploaded automatically.
+    $q = $db->prepare('SELECT filename, COUNT(*) AS count FROM files WHERE hash = (:hash) '.
+                      'AND size = (:size)');
+    $q->bindValue(':hash', $file->getSha1(), PDO::PARAM_STR);
+    $q->bindValue(':size', $file->size,       PDO::PARAM_INT);
+    $q->execute();
+    $result = $q->fetch();
+    if ($result['count'] > 0) {
+        return array(
+            'hash' => $file->getSha1(),
+            'name' => $file->name,
+            'url' => POMF_URL.$result['filename'],
+            'size' => $file->size,
+        );
+    }
+
+    // Generate a name for the file
+    $newname = generateName($file);
+
+    // 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, $uploadFile)) {
+        throw new Exception('Failed to move file to destination',
+            500); // HTTP status code "500 Internal Server Error"
+    }
+
+    // Need to change permissions for the new file to make it world readable
+    if (!chmod($uploadFile, 0644)) {
+        throw new Exception('Failed to change file permissions',
+            500); // HTTP status code "500 Internal Server Error"
+    }
+
+    // Add it to the database
+    // 'expire' support is deprecated since version 2.1.0. It may be
+    // removed in a future release.
+    $q = $db->prepare('INSERT INTO files (hash, originalname, filename, size, date, '.
+                      'expire, delid) VALUES (:hash, :orig, :name, :size, :date, '.
+                      ':exp, :del)');
+
+    // 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', date('Y-m-d'),           PDO::PARAM_STR);
+    $q->bindValue(':exp',  null,                    PDO::PARAM_STR); // Deprecated since version 2.1.0
+    $q->bindValue(':del',  sha1($file->tempfile),   PDO::PARAM_STR);
+    $q->execute();
+
+    return array(
+        'hash' => $file->getSha1(),
+        'name' => $file->name,
+        'url' => POMF_URL.$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'];
+        // 'expire' doesn't exist neither in $_FILES nor in UploadedFile;
+        // it was never implemented and has been deprecated since version 2.1.0.
+        //$f->expire   = $file['expire'];
+        $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)');
+}