Bad file detected

[sensei116]

Bug Description

Hi.

I have an issue using the latest version of e107.
When I try to upload any PPTX (for example) file to my site, I get an error message on my screen telling me that "Bad file is detected".
What was done previously:

1. E107 was installed the first.
2. I added two new formats to filetypes.xml. The extensions are now displayed in my admin area and the file size quota is correct.
3. I added the new extensions to uploader JS file where the file filter categories are established.

Now I am able to select the necessary file, then I see it in the list for uploads waiting for being started, but then, when I press "upload" button, I get the error message.

How to Reproduce

Steps to reproduce the behavior:

1. Go to filetypes.xml
2. Add necessary extension records.
3. Try to upload the file

Expected Behavior

Files are uploadable after extension is in filetypes.xml.

Screenshots

Server Information

PHP Operating System

Linux DCS-KAZLAB-ROOT 4.19.0-5-amd64 #1 SMP Debian 4.19.37-5+deb10u2 (2019-08-08) x86_64
PHP Version

PHP Version 7.3.31-1~deb10u1
PHP Modules

apache2handler
calendar
Core
ctype
curl
date
dom
exif
fileinfo
filter
ftp
gd
gettext
hash
iconv
json
libxml
mbstring
mysqli
mysqlnd
openssl
pcre
PDO
pdo_mysql
Phar
posix
readline
Reflection
session
shmop
SimpleXML
sockets
sodium
SPL
standard
sysvmsg
sysvsem
sysvshm
tokenizer
wddx
xml
xmlreader
xmlwriter
xsl
Zend OPcache
zlib
Client Information

Your user agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0
Other HTTP headers
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.5
Host: duckduckgo.com
TE: trailers
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0
SEC-FETCH-DEST: document
SEC-FETCH-MODE: navigate
SEC-FETCH-SITE: none
SEC-FETCH-USER: ?1
SSL-JA3-HASH: be12eb3bab3313e8d159fd00f469cae2
UPGRADE-INSECURE-REQUESTS: 1

[sensei116]

It looks that I have found a workaround:

1. Open filetypes.xml, add your new extension.
   

2. Open MediaManager.js, add these extensions too.
   

3. Open upload_handler.php, add them again.
   

4. Open file_class.php, do it again.
   

Then everything works (if you do not use 2.3.0).

But, can it be, that all these units get extensions list just from filetypes.xml?
It looks the proper way then.