Re: Document Size

No need to get() the file, then:

($size) = head($url) =~ /^Content-Length:\s+(\d+)/im;
[download]

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Comment on Re: Document Size Download Code

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Re: Re: Document Size by echo (Pilgrim) on Oct 05, 2001 at 12:19 UTC
Beware that the Content-Length header is optional though, and many dynamic documents will not output it. Also, some servers tend to do different things with it depending on the request method: `% HEAD http://www.cnn.com/ 200 OK Cache-Control: private,max-age=60 Connection: close Date: Fri, 05 Oct 2001 08:14:42 GMT Server: Netscape-Enterprise/4.1 Content-Length: 0` [download] Then there is the case of servers which will not handle HEAD requests. In the end the only guaranteed way is to use GET and length().	[reply] [d/l]

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Re: Re: Document Size
by echo (Pilgrim) on Oct 05, 2001 at 12:19 UTC

% HEAD http://www.cnn.com/
200 OK
Cache-Control: private,max-age=60
Connection: close
Date: Fri, 05 Oct 2001 08:14:42 GMT
Server: Netscape-Enterprise/4.1
Content-Length: 0
[download]

Then there is the case of servers which will not handle HEAD requests. In the end the only guaranteed way is to use GET and length().

[reply]
[d/l]