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roundcubemail/program/steps/mail/import.inc

198 lines
7.3 KiB
PHP

<?php
/**
+-----------------------------------------------------------------------+
| program/steps/mail/import.inc |
| |
| This file is part of the Roundcube Webmail client |
| Copyright (C) 2005-2014, The Roundcube Dev Team |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
| See the README file for a full license statement. |
| |
| PURPOSE: |
| Save the uploaded file(s) as messages to the current IMAP folder |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
| Author: Aleksander Machniak <alec@alec.pl> |
+-----------------------------------------------------------------------+
*/
// clear all stored output properties (like scripts and env vars)
$OUTPUT->reset();
if (is_array($_FILES['_file'])) {
$imported = 0;
$folder = $RCMAIL->storage->get_folder();
foreach ((array)$_FILES['_file']['tmp_name'] as $i => $filepath) {
// Process uploaded file if there is no error
$err = $_FILES['_file']['error'][$i];
if (!$err) {
// check file content type first
$ctype = rcube_mime::file_content_type($filepath, $_FILES['_file']['name'][$i], $_FILES['_file']['type'][$i]);
list($mtype_primary, $mtype_secondary) = explode('/', $ctype);
if (in_array($ctype, array('application/zip', 'application/x-zip'))) {
$filepath = rcmail_zip_extract($filepath);
if (empty($filepath)) {
continue;
}
}
else if (!in_array($mtype_primary, array('text', 'message'))) {
continue;
}
foreach ((array) $filepath as $file) {
// read the first few lines to detect header-like structure
$fp = fopen($file, 'r');
do {
$line = fgets($fp);
}
while ($line !== false && trim($line) == '');
if (!preg_match('/^From .+/', $line) && !preg_match('/^[a-z-_]+:\s+.+/i', $line)) {
continue;
}
$message = $lastline = '';
fseek($fp, 0);
while (($line = fgets($fp)) !== false) {
// importing mbox file, split by From - lines
if ($lastline === '' && strncmp($line, 'From ', 5) === 0 && strlen($line) > 5) {
if (!empty($message)) {
$imported += (int) rcmail_save_message($folder, $message);
}
$message = $line;
$lastline = '';
continue;
}
$message .= $line;
$lastline = rtrim($line);
}
if (!empty($message)) {
$imported += (int) rcmail_save_message($folder, $message);
}
// remove temp files extracted from zip
if (is_array($filepath)) {
unlink($file);
}
}
}
else if ($err == UPLOAD_ERR_INI_SIZE || $err == UPLOAD_ERR_FORM_SIZE) {
$size = $RCMAIL->show_bytes(rcube_utils::max_upload_size());
$msg = $RCMAIL->gettext(array('name' => 'filesizeerror', 'vars' => array('size' => $size)));
$OUTPUT->command('display_message', $msg, 'error');
}
else if ($err) {
$OUTPUT->show_message('fileuploaderror', 'error');
}
}
if ($imported) {
$OUTPUT->show_message($RCMAIL->gettext(array('name' => 'importmessagesuccess', 'nr' => $imported, 'vars' => array('nr' => $imported))), 'confirmation');
$OUTPUT->command('command', 'list');
}
else {
$OUTPUT->show_message('importmessageerror', 'error');
}
}
else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
// if filesize exceeds post_max_size then $_FILES array is empty,
// show filesizeerror instead of fileuploaderror
if ($maxsize = ini_get('post_max_size'))
$msg = $RCMAIL->gettext(array('name' => 'filesizeerror', 'vars' => array('size' => $RCMAIL->show_bytes(parse_bytes($maxsize)))));
else
$msg = $RCMAIL->gettext('fileuploaderror');
$OUTPUT->command('display_message', $msg, 'error');
}
// send html page with JS calls as response
$OUTPUT->send('iframe');
function rcmail_zip_extract($path)
{
if (!class_exists('ZipArchive', false)) {
return;
}
$rcmail = rcmail::get_instance();
$temp_dir = $rcmail->config->get('temp_dir');
$zip = new ZipArchive;
$files = array();
if ($zip->open($path)) {
for ($i = 0; $i < $zip->numFiles; $i++) {
$entry = $zip->getNameIndex($i);
$tmpfname = tempnam($temp_dir, 'zipimport');
if (copy("zip://$path#$entry", $tmpfname)) {
$ctype = rcube_mime::file_content_type($tmpfname, $entry);
list($mtype_primary, $mtype_secondary) = explode('/', $ctype);
if (in_array($mtype_primary, array('text', 'message'))) {
$files[] = $tmpfname;
}
else {
unlink($tmpfname);
}
}
}
$zip->close();
}
return $files;
}
function rcmail_save_message($folder, &$message)
{
if (strncmp($message, 'From ', 5) === 0) {
// Extract the mbox from_line
$pos = strpos($message, "\n");
$from = substr($message, 0, $pos);
$message = substr($message, $pos + 1);
// Read the received date, support only known date formats
// RFC4155: "Sat Jan 3 01:05:34 1996"
$mboxdate_rx = '/^([a-z]{3} [a-z]{3} [0-9 ][0-9] [0-9]{2}:[0-9]{2}:[0-9]{2} [0-9]{4})/i';
// Roundcube/Zipdownload: "12-Dec-2016 10:56:33 +0100"
$imapdate_rx = '/^([0-9]{1,2}-[a-z]{3}-[0-9]{4} [0-9]{2}:[0-9]{2}:[0-9]{2} [0-9+-]{5})/i';
if (($pos = strpos($from, ' ', 6)) && ($dt_str = substr($from, $pos + 1))
&& (preg_match($mboxdate_rx, $dt_str, $m) || preg_match($imapdate_rx, $dt_str, $m))
) {
try {
$date = new DateTime($m[0], new DateTimeZone('UTC'));
}
catch (Exception $e) {
// ignore
}
}
}
// unquote ">From " lines in message body
$message = preg_replace('/\n>([>]*)From /', "\n\\1From ", $message);
$message = rtrim($message);
$rcmail = rcmail::get_instance();
if ($rcmail->storage->save_message($folder, $message, '', false, array(), $date)) {
return true;
}
rcube::raise_error("Failed to import message to $folder", true, false);
return false;
}