181995 - File field does not check if file exists before submitting

Status: RESOLVED DUPLICATE of bug 82634

(Core :: DOM: Core & HTML, defect)

Description

[David Mårtensson]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2) Gecko/20021112 MultiZilla/v1.1.18
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2) Gecko/20021112 MultiZilla/v1.1.18

I do not know if this is a bug or intentional but here is the problem:

When using a file field and typing the filename manualy, not using browse there
is no check to see if file exists before submitting. 

This results in the browser sending an empty file.

This behaviour is the same as IE but I can not se any reason for this.

What I would like:
1. Either the browser should complain if the file does not exist.
2. There should be some way to catch this from script. (could possibly be an
security issue, the first alternative whould be better.

Reproducible: Always

Steps to Reproduce:
1. Take any form containing a file field
2. Write an arbitrary filenam which should not match an existing file
3. Submit form

Actual Results:  
Form is submittet containing an empty file

Expected Results:  
I whould have liked mozilla to complain or trigger an event that could be cought.

I can setup an server to test this if neseccary but before I take the time I
wanted to know if this is by design in which case I have to stay with the
current solution to check filesize on the server.

Comment 1

[Alexandru Savulov]

duplicate?

Comment 2

[Vladimir Ermakov]

This was fixed the following way:
- IF the entry is a valid filename that does not exist, we truncate to just
filename (no directories) and treat it like input type=text.
- IF the entry is an invalid filename, we treat it like input type=text.

*** This bug has been marked as a duplicate of 82634 ***