Some chat names, eg. "a/b/c", when using with
MediaFilenameFmt = usermedia/{name}-{context_id}/{type}-{filename}
can create folders like "usermedia/a/b/c--123456/document-filename.123.txt"
This is not intended and unsafe (like a/../../b), and also have problems with other filesystem filename restrictions. Please really sanitize the chat name, sender name and file names. For example, replace " * / : < > ? \ | characters with _.
Lonami
commented
5 years ago 
gumblex
commented
5 years ago
Some chat names, eg. "a/b/c", when using with
MediaFilenameFmt = usermedia/{name}-{context_id}/{type}-{filename}can create folders like "usermedia/a/b/c--123456/document-filename.123.txt"This is not intended and unsafe (like
a/../../b), and also have problems with other filesystem filename restrictions. Please really sanitize the chat name, sender name and file names. For example, replace" * / : < > ? \ |characters with_.