1 files changed, 334 insertions, 0 deletions
diff --git a/phpBB/phpbb/attachment/upload.php b/phpBB/phpbb/attachment/upload.php
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+++ b/phpBB/phpbb/attachment/upload.php
@@ -0,0 +1,334 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb\attachment;
+
+use phpbb\auth\auth;
+use \phpbb\cache\service;
+use \phpbb\config\config;
+use \phpbb\event\dispatcher;
+use \phpbb\language\language;
+use \phpbb\mimetype\guesser;
+use \phpbb\plupload\plupload;
+use \phpbb\user;
+
+/**
+ * Attachment upload class
+ */
+class upload
+{
+	/** @var auth */
+	protected $auth;
+
+	/** @var service */
+	protected $cache;
+
+	/** @var config */
+	protected $config;
+
+	/** @var \phpbb\files\upload Upload class */
+	protected $files_upload;
+
+	/** @var language */
+	protected $language;
+
+	/** @var guesser Mimetype guesser */
+	protected $mimetype_guesser;
+
+	/** @var dispatcher */
+	protected $phpbb_dispatcher;
+
+	/** @var plupload Plupload */
+	protected $plupload;
+
+	/** @var user */
+	protected $user;
+
+	/** @var \phpbb\files\filespec Current filespec instance */
+	private $file;
+
+	/** @var array File data */
+	private $file_data = array(
+		'error'	=> array()
+	);
+
+	/** @var array Extensions array */
+	private $extensions;
+
+	/**
+	 * Constructor for attachments upload class
+	 *
+	 * @param auth $auth
+	 * @param service $cache
+	 * @param config $config
+	 * @param \phpbb\files\upload $files_upload
+	 * @param language $language
+	 * @param guesser $mimetype_guesser
+	 * @param dispatcher $phpbb_dispatcher
+	 * @param plupload $plupload
+	 * @param user $user
+	 * @param $phpbb_root_path
+	 */
+	public function __construct(auth $auth, service $cache, config $config, \phpbb\files\upload $files_upload, language $language, guesser $mimetype_guesser, dispatcher $phpbb_dispatcher, plupload $plupload, user $user, $phpbb_root_path)
+	{
+		$this->auth = $auth;
+		$this->cache = $cache;
+		$this->config = $config;
+		$this->files_upload = $files_upload;
+		$this->language = $language;
+		$this->mimetype_guesser = $mimetype_guesser;
+		$this->phpbb_dispatcher = $phpbb_dispatcher;
+		$this->plupload = $plupload;
+		$this->user = $user;
+		$this->phpbb_root_path = $phpbb_root_path;
+	}
+
+	/**
+	 * Upload Attachment - filedata is generated here
+	 * Uses upload class
+	 *
+	 * @param string			$form_name		The form name of the file upload input
+	 * @param int			$forum_id		The id of the forum
+	 * @param bool			$local			Whether the file is local or not
+	 * @param string			$local_storage	The path to the local file
+	 * @param bool			$is_message		Whether it is a PM or not
+	 * @param array		$local_filedata	An file data object created for the local file
+	 *
+	 * @return array File data array
+	 */
+	public function upload($form_name, $forum_id, $local = false, $local_storage = '', $is_message = false, $local_filedata = array())
+	{
+		$this->init_files_upload($forum_id, $is_message);
+
+		$this->file_data['post_attach'] = $local || $this->files_upload->is_valid($form_name);
+
+		if (!$this->file_data['post_attach'])
+		{
+			$this->file_data['error'][] = $this->language->lang('NO_UPLOAD_FORM_FOUND');
+			return $this->file_data;
+		}
+
+		$this->file = ($local) ? $this->files_upload->handle_upload('files.types.local', $local_storage, $local_filedata) : $this->files_upload->handle_upload('files.types.form', $form_name);
+
+		if ($this->file->init_error())
+		{
+			$this->file_data['post_attach'] = false;
+			return $this->file_data;
+		}
+
+		// Whether the uploaded file is in the image category
+		$is_image = (isset($this->extensions[$this->file->get('extension')]['display_cat'])) ? $this->extensions[$this->file->get('extension')]['display_cat'] == ATTACHMENT_CATEGORY_IMAGE : false;
+
+		if (!$this->auth->acl_get('a_') && !$this->auth->acl_get('m_', $forum_id))
+		{
+			// Check Image Size, if it is an image
+			if ($is_image)
+			{
+				$this->file->upload->set_allowed_dimensions(0, 0, $this->config['img_max_width'], $this->config['img_max_height']);
+			}
+
+			// Admins and mods are allowed to exceed the allowed filesize
+			if (!empty($this->extensions[$this->file->get('extension')]['max_filesize']))
+			{
+				$allowed_filesize = $this->extensions[$this->file->get('extension')]['max_filesize'];
+			}
+			else
+			{
+				$allowed_filesize = ($is_message) ? $this->config['max_filesize_pm'] : $this->config['max_filesize'];
+			}
+
+			$this->file->upload->set_max_filesize($allowed_filesize);
+		}
+
+		$this->file->clean_filename('unique', $this->user->data['user_id'] . '_');
+
+		// Are we uploading an image *and* this image being within the image category?
+		// Only then perform additional image checks.
+		$this->file->move_file($this->config['upload_path'], false, !$is_image);
+
+		// Do we have to create a thumbnail?
+		$this->file_data['thumbnail'] = ($is_image && $this->config['img_create_thumbnail']) ? 1 : 0;
+
+		// Make sure the image category only holds valid images...
+		$this->check_image($is_image);
+
+		if (count($this->file->error))
+		{
+			$this->file->remove();
+			$this->file_data['error'] = array_merge($this->file_data['error'], $this->file->error);
+			$this->file_data['post_attach'] = false;
+
+			return $this->file_data;
+		}
+
+		$this->fill_file_data();
+
+		$filedata = $this->file_data;
+
+		/**
+		 * Event to modify uploaded file before submit to the post
+		 *
+		 * @event core.modify_uploaded_file
+		 * @var	array	filedata	Array containing uploaded file data
+		 * @var	bool	is_image	Flag indicating if the file is an image
+		 * @since 3.1.0-RC3
+		 */
+		$vars = array(
+			'filedata',
+			'is_image',
+		);
+		extract($this->phpbb_dispatcher->trigger_event('core.modify_uploaded_file', compact($vars)));
+		$this->file_data = $filedata;
+		unset($filedata);
+
+		// Check for attachment quota and free space
+		if (!$this->check_attach_quota() || !$this->check_disk_space())
+		{
+			return $this->file_data;
+		}
+
+		// Create Thumbnail
+		$this->create_thumbnail();
+
+		return $this->file_data;
+	}
+
+	/**
+	 * Create thumbnail for file if necessary
+	 *
+	 * @return array Updated $filedata
+	 */
+	protected function create_thumbnail()
+	{
+		if ($this->file_data['thumbnail'])
+		{
+			$source = $this->file->get('destination_file');
+			$destination = $this->file->get('destination_path') . '/thumb_' . $this->file->get('realname');
+
+			if (!create_thumbnail($source, $destination, $this->file->get('mimetype')))
+			{
+				$this->file_data['thumbnail'] = 0;
+			}
+		}
+	}
+
+	/**
+	 * Init files upload class
+	 *
+	 * @param int $forum_id Forum ID
+	 * @param bool $is_message Whether attachment is inside PM or not
+	 */
+	protected function init_files_upload($forum_id, $is_message)
+	{
+		if ($this->config['check_attachment_content'] && isset($this->config['mime_triggers']))
+		{
+			$this->files_upload->set_disallowed_content(explode('|', $this->config['mime_triggers']));
+		}
+		else if (!$this->config['check_attachment_content'])
+		{
+			$this->files_upload->set_disallowed_content(array());
+		}
+
+		$this->extensions = $this->cache->obtain_attach_extensions((($is_message) ? false : (int) $forum_id));
+		$this->files_upload->set_allowed_extensions(array_keys($this->extensions['_allowed_']));
+	}
+
+	/**
+	 * Check if uploaded file is really an image
+	 *
+	 * @param bool $is_image Whether file is image
+	 */
+	protected function check_image($is_image)
+	{
+		// Make sure the image category only holds valid images...
+		if ($is_image && !$this->file->is_image())
+		{
+			$this->file->remove();
+
+			if ($this->plupload && $this->plupload->is_active())
+			{
+				$this->plupload->emit_error(104, 'ATTACHED_IMAGE_NOT_IMAGE');
+			}
+
+			// If this error occurs a user tried to exploit an IE Bug by renaming extensions
+			// Since the image category is displaying content inline we need to catch this.
+			$this->file->set_error($this->language->lang('ATTACHED_IMAGE_NOT_IMAGE'));
+		}
+	}
+
+	/**
+	 * Check if attachment quota was reached
+	 *
+	 * @return bool False if attachment quota was reached, true if not
+	 */
+	protected function check_attach_quota()
+	{
+		if ($this->config['attachment_quota'])
+		{
+			if (intval($this->config['upload_dir_size']) + $this->file->get('filesize') > $this->config['attachment_quota'])
+			{
+				$this->file_data['error'][] = $this->language->lang('ATTACH_QUOTA_REACHED');
+				$this->file_data['post_attach'] = false;
+
+				$this->file->remove();
+
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	/**
+	 * Check if there is enough free space available on disk
+	 *
+	 * @return bool True if disk space is available, false if not
+	 */
+	protected function check_disk_space()
+	{
+		if ($free_space = @disk_free_space($this->phpbb_root_path . $this->config['upload_path']))
+		{
+			if ($free_space <= $this->file->get('filesize'))
+			{
+				if ($this->auth->acl_get('a_'))
+				{
+					$this->file_data['error'][] = $this->language->lang('ATTACH_DISK_FULL');
+				}
+				else
+				{
+					$this->file_data['error'][] = $this->language->lang('ATTACH_QUOTA_REACHED');
+				}
+				$this->file_data['post_attach'] = false;
+
+				$this->file->remove();
+
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	/**
+	 * Fills file data with file information and current time as filetime
+	 */
+	protected function fill_file_data()
+	{
+		$this->file_data['filesize'] = $this->file->get('filesize');
+		$this->file_data['mimetype'] = $this->file->get('mimetype');
+		$this->file_data['extension'] = $this->file->get('extension');
+		$this->file_data['physical_filename'] = $this->file->get('realname');
+		$this->file_data['real_filename'] = $this->file->get('uploadname');
+		$this->file_data['filetime'] = time();
+	}
+}