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* Mail - Filter / and ? from filenames when saving to VFS or disk

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This commit is contained in:
nathangray 2018-01-15 11:52:15 -07:00
parent 7a2f0a8f24
commit 8a8b8864fc
3 changed files with 146 additions and 7 deletions
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34
mail/inc/class.mail_ui.inc.php
View File

@ -2761,11 +2761,13 @@ $filter['before']= date("d-M-Y", $cutoffdate2);
{
$headers = Horde_Mime_Headers::parseHeaders($message);
$subject = str_replace('$$','__',Mail::decode_header($headers['SUBJECT']));
$subject = $this->clean_subject_for_filename($subject);
Api\Header\Content::safe($message, $subject.".eml", $mime='message/rfc822', $size=0, true, true);
echo $message;
}
else
{
$subject = $this->clean_subject_for_filename($subject);
Api\Header\Content::safe($message, $subject.".eml", $mime='text/html', $size=0, true, false);
print '<pre>'. htmlspecialchars($message, ENT_NOQUOTES|ENT_SUBSTITUTE, 'utf-8') .'</pre>';
}
@ -2844,11 +2846,11 @@ $filter['before']= date("d-M-Y", $cutoffdate2);
if (Vfs::is_dir($path))
{
$headers = $this->mail_bo->getMessageHeader($uid,$partID,true,false,$mailbox);
$file = $dir . '/'.preg_replace('$[\f\n\t\v\\:*#?<>\|/]$',"_",$headers['SUBJECT']).'.eml';
$file = $dir . '/'.$this->clean_subject_for_filename($headers['SUBJECT']).'.eml';
}
else
{
$file = $path;
$file = $dir . '/' . $this->clean_subject_for_filename(str_replace($dir.'/', '', $path));
}
// Check if file already exists, then try to assign a none existance filename
@ -2915,7 +2917,8 @@ $filter['before']= date("d-M-Y", $cutoffdate2);
else
{
$dir = Vfs::dirname($path);
$filename = Vfs::basename($path);
// Need to deal with any ? here, or basename will truncate
$filename = $this->clean_subject_for_filename(str_replace('?','_',Vfs::basename($path)));
}
if (!Vfs::is_writable($dir))
@ -2996,7 +2999,7 @@ $filter['before']= date("d-M-Y", $cutoffdate2);
$attachment = $this->mail_bo->getAttachment($params['uid'],$params['part'],$params['is_winmail'],false);
}
$file = $dir. '/' . ($filename ? $filename : preg_replace('$[\f\n\t\v\\:*#?<>\|/]$',"_",$attachment['filename']));
$file = $dir. '/' . ($filename ? $filename : $this->clean_subject_for_filename($attachment['filename']));
$counter = 1;
$tmp_file = $file;
@ -3031,6 +3034,25 @@ $filter['before']= date("d-M-Y", $cutoffdate2);
return $res;
}
/**
* Make the provided filename safe to store in the VFS
*
* Some characters found in subjects that cause problems if we try to put
* them as filenames (Windows) so we remove any characters that might result
* in additional directories, or issues on Windows.
*
* Under Windows the characters < > ? " : | \ / * are not allowed.
* % causes problems with VFS UI
*
* @param string $filename
* @return Cleaned filename, with problematic characters replaced with '_'.
*/
protected function clean_subject_for_filename($filename)
{
static $filter_pattern = '$[\f\n\t\v\\:*#?<>%"\|/\\\?]$';
return preg_replace($filter_pattern, "_", $filename);
}
/**
* Zip all attachments and send to user
* @param string $message_id = null
@ -3070,7 +3092,7 @@ $filter['before']= date("d-M-Y", $cutoffdate2);
// Add subject to path, so it gets used as the file name, replacing ':'
// as it seems to cause an error
$path = $temp_path . '/' . ($header['SUBJECT'] ? Vfs::encodePathComponent(str_replace(':','-', $header['SUBJECT'])) : lang('mail')) .'/';
$path = $temp_path . '/' . ($header['SUBJECT'] ? Vfs::encodePathComponent($this->clean_subject_for_filename(str_replace(':','-', $header['SUBJECT']))) : lang('mail')) .'/';
if(!Vfs::mkdir($path, 0700, true))
{
echo "Unable to open temp directory $path";
@ -3109,7 +3131,7 @@ $filter['before']= date("d-M-Y", $cutoffdate2);
pathinfo($file['filename'], PATHINFO_EXTENSION);
}
// Strip special characters to make sure the files are visible for all OS (windows has issues)
$target_name = iconv($file['charset'] ? $file['charset'] : $GLOBALS['egw_info']['server']['system_charset'], 'ASCII//IGNORE', $file['filename']);
$target_name = $this->clean_subject_for_filename(iconv($file['charset'] ? $file['charset'] : $GLOBALS['egw_info']['server']['system_charset'], 'ASCII//IGNORE', $file['filename']));
if (!($fp = Vfs::fopen($path.$target_name,'wb')) ||
!(!fseek($attachment['attachment'], 0, SEEK_SET) && stream_copy_to_stream($attachment['attachment'], $fp)))

3
mail/js/app.js
View File

@ -2999,7 +2999,8 @@ app.classes.mail = AppJS.extend(
var _id = _elems[i].id;
var dataElem = egw.dataGetUIDdata(_id);
var subject = dataElem? dataElem.data.subject: _elems[i].subject;
var filename = subject.replace(/[\f\n\t\v]/g,"_")|| 'unknown';
// Replace these now, they really cause problems later
var filename = subject.replace(/[\f\n\t\v\/\\\?]/g,"_")|| 'unknown';
ids.push(_id);
names.push(filename+'.eml');
}

116
mail/tests/SaveToVfsTest.php Normal file
View File

@ -0,0 +1,116 @@
<?php
/**
* Test the save to VFS functions
*
* @link http://www.egroupware.org
* @author Nathan Gray
* @package mail
* @copyright (c) 2018 by Nathan Gray
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
*/
namespace EGroupware\Mail;
require_once realpath(__DIR__.'/../../api/tests/AppTest.php'); // Application test base
use Egroupware\Api;
class SaveToVfsTest extends \EGroupware\Api\AppTest
{
// Mail object under test
protected $ui = null;
/**
* Create a custom status we can use to test
*/
public static function setUpBeforeClass()
{
parent::setUpBeforeClass();
}
public static function tearDownAfterClass()
{
// Have to remove custom status first, before the DB is gone
parent::tearDownAfterClass();
}
public function setUp()
{
$this->ui = new VfsTestMailUi(false);
}
public function tearDown()
{
$this->ui = null;
}
/**
* Test that we make nice filenames for the VFS
*
* Under Windows the characters < > ? " : | \ / * are not allowed.
* % causes problems with VFS UI
*
* @param String $filename
* @dataProvider filenameProvider
*/
public function testVfsFilename($filename, $replacements)
{
$cleaned = $this->ui->clean_subject_for_filename($filename);
$this->assertNotContains('<', $cleaned);
$this->assertNotContains('>', $cleaned);
$this->assertNotContains('"', $cleaned);
$this->assertNotContains('#', $cleaned);
$this->assertNotContains(':', $cleaned);
$this->assertNotContains('|', $cleaned);
$this->assertNotContains('\\', $cleaned);
$this->assertNotContains('*', $cleaned);
$this->assertNotContains('/', $cleaned);
$this->assertNotContains('?', $cleaned);
// Length should stay the same
$this->assertEquals(strlen($filename), strlen($cleaned));
if(!$replacements)
{
$this->assertEquals($filename, $cleaned);
}
else
{
$this->assertNotEquals($filename, $cleaned);
}
}
public function filenameProvider()
{
return array(
array('Normal! All allowed (!@$^&) {\'} []', false),
array('Contains a >', true),
array('Contains a <', true),
array('Contains a "', true),
array('Contains a #', true),
array('Contains a :', true),
array('Contains a |', true),
array('Contains a \ ', true),
array('Contains a *', true),
array('Contains a /', true),
array('Contains a ?', true),
array('Contains a %', true),
array('This one contains them all < > " : | \ * / ? % are not allowed', true)
);
}
}
class VfsTestMailUi extends \mail_ui
{
// Expose for testing
public function clean_subject_for_filename($filename)
{
return parent::clean_subject_for_filename($filename);
}
}