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292 lines
10 KiB
PHP
292 lines
10 KiB
PHP
<?php
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/**
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+-----------------------------------------------------------------------+
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| program/steps/mail/attachments.inc |
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| This file is part of the Roundcube Webmail client |
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| Copyright (C) 2005-2013, The Roundcube Dev Team |
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| Licensed under the GNU General Public License version 3 or |
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| any later version with exceptions for skins & plugins. |
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| See the README file for a full license statement. |
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| PURPOSE: |
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| Upload, remove, display attachments in compose form |
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+-----------------------------------------------------------------------+
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| Author: Thomas Bruederli <roundcube@gmail.com> |
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+-----------------------------------------------------------------------+
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*/
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// Upload progress update
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if (!empty($_GET['_progress'])) {
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$RCMAIL->upload_progress();
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}
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$COMPOSE_ID = rcube_utils::get_input_value('_id', rcube_utils::INPUT_GPC);
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$COMPOSE = null;
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if ($COMPOSE_ID && $_SESSION['compose_data_' . $COMPOSE_ID]) {
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$SESSION_KEY = 'compose_data_' . $COMPOSE_ID;
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$COMPOSE =& $_SESSION[$SESSION_KEY];
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}
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if (!$COMPOSE) {
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die("Invalid session var!");
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}
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$file_id = rcube_utils::get_input_value('_file', rcube_utils::INPUT_GPC);
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$file_id = preg_replace('/^rcmfile/', '', $file_id) ?: 'unknown';
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// remove an attachment
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if ($RCMAIL->action == 'remove-attachment') {
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if ($attachment = $COMPOSE['attachments'][$file_id]) {
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$attachment = $RCMAIL->plugins->exec_hook('attachment_delete', $attachment);
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}
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if ($attachment['status']) {
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if (is_array($COMPOSE['attachments'][$file_id])) {
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$RCMAIL->session->remove($SESSION_KEY . '.attachments.' . $file_id);
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$OUTPUT->command('remove_from_attachment_list', "rcmfile$file_id");
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}
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}
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$OUTPUT->send();
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exit;
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}
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// rename an attachment
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if ($RCMAIL->action == 'rename-attachment') {
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$filename = rcube_utils::get_input_value('_name', rcube_utils::INPUT_POST);
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$filename = trim($filename);
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if (strlen($filename)
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&& ($attachment = $COMPOSE['attachments'][$file_id])
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&& is_array($attachment)
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) {
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$attachment['name'] = $filename;
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$RCMAIL->session->remove($SESSION_KEY . '.attachments. ' . $file_id);
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$RCMAIL->session->append($SESSION_KEY . '.attachments', $attachment['id'], $attachment);
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$OUTPUT->command('rename_attachment_handler', "rcmfile$file_id", $filename);
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}
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$OUTPUT->send();
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exit;
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}
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if ($RCMAIL->action == 'display-attachment') {
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$RCMAIL->display_uploaded_file($COMPOSE['attachments'][$file_id]);
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exit;
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}
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/***** attachment upload action *****/
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// clear all stored output properties (like scripts and env vars)
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$OUTPUT->reset();
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$uploadid = rcube_utils::get_input_value('_uploadid', rcube_utils::INPUT_GPC);
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$uri = rcube_utils::get_input_value('_uri', rcube_utils::INPUT_POST);
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// handle dropping a reference to an attachment part of some message
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if ($uri) {
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$url = parse_url($uri);
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parse_str($url['query'], $params);
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if (strlen($params['_mbox']) && $params['_uid'] && $params['_part']) {
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// @TODO: at some point we might support drag-n-drop between
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// two different accounts on the same server, for now make sure
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// this is the same server and the same user
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list($host, $port) = explode(':', $_SERVER['HTTP_HOST']);
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if ($host == $url['host'] && $port == $url['port']
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&& $RCMAIL->get_user_name() == rawurldecode($url['user'])
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) {
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$message = new rcube_message($params['_uid'], $params['_mbox']);
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if ($message && !empty($message->headers)) {
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$attachment = rcmail_save_attachment($message, $params['_part'], $COMPOSE_ID);
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}
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}
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}
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$plugin = $RCMAIL->plugins->exec_hook('attachment_from_uri', array(
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'attachment' => $attachment, 'uri' => $uri, 'compose_id' => $COMPOSE_ID));
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if ($plugin['attachment']) {
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rcmail_attachment_success($plugin['attachment'], $uploadid);
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}
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else {
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$OUTPUT->command('display_message', $RCMAIL->gettext('filelinkerror'), 'error');
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$OUTPUT->command('remove_from_attachment_list', $uploadid);
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}
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$OUTPUT->send();
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return;
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}
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// handle file(s) upload
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if (is_array($_FILES['_attachments']['tmp_name'])) {
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$multiple = count($_FILES['_attachments']['tmp_name']) > 1;
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$errors = array();
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foreach ($_FILES['_attachments']['tmp_name'] as $i => $filepath) {
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// Process uploaded attachment if there is no error
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$err = $_FILES['_attachments']['error'][$i];
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if (!$err) {
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$filename = $_FILES['_attachments']['name'][$i];
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$filesize = $_FILES['_attachments']['size'][$i];
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$filetype = rcube_mime::file_content_type($filepath, $filename, $_FILES['_attachments']['type'][$i]);
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if ($err = rcmail_check_message_size($filesize, $filetype)) {
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if (!in_array($err, $errors)) {
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$OUTPUT->command('display_message', $err, 'error');
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$OUTPUT->command('remove_from_attachment_list', $uploadid);
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$errors[] = $err;
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}
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continue;
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}
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$attachment = $RCMAIL->plugins->exec_hook('attachment_upload', array(
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'path' => $filepath,
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'name' => $filename,
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'size' => $filesize,
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'mimetype' => $filetype,
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'group' => $COMPOSE_ID,
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));
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}
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if (!$err && $attachment['status'] && !$attachment['abort']) {
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// store new attachment in session
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unset($attachment['status'], $attachment['abort']);
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$RCMAIL->session->append($SESSION_KEY . '.attachments', $attachment['id'], $attachment);
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rcmail_attachment_success($attachment, $uploadid);
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}
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else { // upload failed
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if ($err == UPLOAD_ERR_INI_SIZE || $err == UPLOAD_ERR_FORM_SIZE) {
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$size = $RCMAIL->show_bytes(rcube_utils::max_upload_size());
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$msg = $RCMAIL->gettext(array('name' => 'filesizeerror', 'vars' => array('size' => $size)));
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}
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else if ($attachment['error']) {
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$msg = $attachment['error'];
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}
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else {
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$msg = $RCMAIL->gettext('fileuploaderror');
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}
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if ($attachment['error'] || $err != UPLOAD_ERR_NO_FILE) {
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if (!in_array($msg, $errors)) {
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$OUTPUT->command('display_message', $msg, 'error');
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$OUTPUT->command('remove_from_attachment_list', $uploadid);
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$errors[] = $msg;
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}
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}
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}
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}
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}
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else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
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// if filesize exceeds post_max_size then $_FILES array is empty,
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// show filesizeerror instead of fileuploaderror
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if ($maxsize = ini_get('post_max_size')) {
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$msg = $RCMAIL->gettext(array(
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'name' => 'filesizeerror',
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'vars' => array('size' => $RCMAIL->show_bytes(parse_bytes($maxsize)))
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));
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}
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else {
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$msg = $RCMAIL->gettext('fileuploaderror');
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}
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$OUTPUT->command('display_message', $msg, 'error');
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$OUTPUT->command('remove_from_attachment_list', $uploadid);
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}
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// send html page with JS calls as response
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$OUTPUT->command('auto_save_start', false);
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$OUTPUT->send('iframe');
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function rcmail_attachment_success($attachment, $uploadid)
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{
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global $RCMAIL, $COMPOSE;
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$id = $attachment['id'];
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if (($icon = $COMPOSE['deleteicon']) && is_file($icon)) {
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$button = html::img(array(
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'src' => $icon,
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'alt' => $RCMAIL->gettext('delete')
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));
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}
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else if ($COMPOSE['textbuttons']) {
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$button = rcube::Q($RCMAIL->gettext('delete'));
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}
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else {
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$button = '';
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}
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$link_content = sprintf('%s <span class="attachment-size"> (%s)</span>',
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rcube::Q($attachment['name']), $RCMAIL->show_bytes($attachment['size']));
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$content_link = html::a(array(
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'href' => "#load",
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'class' => 'filename',
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'onclick' => sprintf("return %s.command('load-attachment','rcmfile%s', this, event)", rcmail_output::JS_OBJECT_NAME, $id),
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), $link_content);
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$delete_link = html::a(array(
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'href' => "#delete",
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'onclick' => sprintf("return %s.command('remove-attachment','rcmfile%s', this, event)", rcmail_output::JS_OBJECT_NAME, $id),
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'title' => $RCMAIL->gettext('delete'),
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'class' => 'delete',
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'aria-label' => $RCMAIL->gettext('delete') . ' ' . $attachment['name'],
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), $button);
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$content = $COMPOSE['icon_pos'] == 'left' ? $delete_link.$content_link : $content_link.$delete_link;
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$RCMAIL->output->command('add2attachment_list', "rcmfile$id", array(
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'html' => $content,
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'name' => $attachment['name'],
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'mimetype' => $attachment['mimetype'],
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'classname' => rcube_utils::file2class($attachment['mimetype'], $attachment['name']),
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'complete' => true), $uploadid);
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}
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/**
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* Checks if the attached file will fit in message size limit.
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* Calculates size of all attachments and compares with the limit.
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*
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* @param int $filesize File size
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* @param string $filetype File mimetype
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*
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* @return string Error message if the limit is exceeded
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*/
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function rcmail_check_message_size($filesize, $filetype)
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{
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global $RCMAIL, $COMPOSE;
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$limit = parse_bytes($RCMAIL->config->get('max_message_size'));
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$size = 10 * 1024; // size of message body
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if (!$limit) {
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return;
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}
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// add size of already attached files
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foreach ((array) $COMPOSE['attachments'] as $att) {
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// All attachments are base64-encoded except message/rfc822 (see sendmail.inc)
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$multip = $att['mimetype'] == 'message/rfc822' ? 1 : 1.33;
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$size += $att['size'] * $multip;
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}
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// add size of the new attachment
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$multip = $filetype == 'message/rfc822' ? 1 : 1.33;
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$size += $filesize * $multip;
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if ($size > $limit) {
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$limit = $RCMAIL->show_bytes($limit);
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return $RCMAIL->gettext(array('name' => 'msgsizeerror', 'vars' => array('size' => $limit)));
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}
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}
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