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Detect connection, valid URL, 404 page [message #14268]

Thu, 21 February 2008 12:24

Engeor
Messages: 12
Registered: January 2008

Promising Member

If I try to load a file that does not exists on the server then the http server returns 404 page. In this case HttpClient returns no error so I search returned buffer for 404 inside <TITLE> tag.

1) Is there any better way how to detect that file does not exists on the server?
2) How to detect non-existing server? (Another way that wait for timeout).

Engeor

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Re: Detect connection, valid URL, 404 page [message #14294 is a reply to message #14268]

Thu, 21 February 2008 20:20

Engeor
Messages: 12
Registered: January 2008

Promising Member

I didn't realized that the content of the file that is returned by server in case that the desired file wasn't found is not defined. This is why searching for 404 is not good idea. Now I look into header for "Last-Modified" because dynamically generated files haven't this line in header. Generally, it is not optimal as well but it suits my need because I download only static files.

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