Web File Validation

[Chase Preuninger]

I want users to give me the url to a file on he web other than html,
htm, jsp, asp, etc. Then I need to validate that it exists, and then I
need to make sure that it is <i>someName<b>.</b>someType</i>. any
Ideas???

 

[Chase Preuninger]

Sorry I guess html dosent work.

 

[Jeff Higgins]

I want users to give me the url to a file on he web other than html,
htm, jsp, asp, etc. Then I need to validate that it exists, and then I
need to make sure that it is <i>someName<b>.</b>someType</i>. any
Ideas???

Politely ask within your group of users for a URL to a file
(other than html, htm, jsp, asp, etc.) on 'he web'.

<http://java.sun.com/docs/books/tutorialNB/download/tutorial.zip>

If you mean to say the Internet rather than 'he web' then see:

The Java Tutorial - Custom Networking Trail
<http://java.sun.com/docs/books/tutorial/networking/TOC.html>
in particular the Working with URLs section,
<http://java.sun.com/docs/books/tutorial/networking/urls/index.html>
and its' subsection Parsing a URL.
http://java.sun.com/docs/books/tutorial/networking/urls/urlInfo.html

 

[Roedy Green]

I want users to give me the url to a file on he web other than html,
htm, jsp, asp, etc. Then I need to validate that it exists, and then I
need to make sure that it is <i>someName<b>.</b>someType</i>. any
Ideas???

try downloading the file with a GET and aborting. You can also try a
HTTP HEAD, though I suspect some websites will not let you do that.

 

[Chase Preuninger]

I have been designing a web site where the users basically enter a
file and I will index it in my database. I need to make sure the file
exists, and that the file has a valid extension, and that it is a
valid type. The reason I need to validate it is because it do not
actually upload the file; I just create a link to it on my site.

IE. www.google.com is invalid.
www.google.com/file.exe is valid.