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Re: Re: CGI file upload - endless loop??

by lpoht (Sexton)
on Jul 19, 2002 at 19:17 UTC ( [id://183393]=note: print w/replies, xml ) Need Help??


in reply to Re: CGI file upload - endless loop??
in thread CGI file upload - endless loop??

First, thanks for your response sedhed. I tried your script and using the form I posted earlier on this thread, came up with some confusing results. Note that I added a text field on the form to make sure that it was sending something in the post. When I uploaded a small text file, the CGI responded with "Got squat" (even though the text field had text in it). When I uploaded a larger (90kb) image file, Netscape responded (client side)"A network error occurred while Netscape was sending data. (Network error: Connection Aborted). Try Connecting again." IE responded with "Cannot find server or DNS error". I added the line $cgi_lib::maxdata = 2000000; to make sure that size limitations wern't the problem. This code did not fix the problem. I can upload a 70kb file (getting "got squat" as the answer), but not a 90kb (or larger) file. The script is running on a PII 400Mhz server, which is on the same LAN as my machine, so bandwidth is not an issue (100BaseT ethernet). Any ideas? Thanks for your help.

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Re: Re: Re: CGI file upload - endless loop??
by sedhed (Scribe) on Jul 19, 2002 at 21:07 UTC

    Well first things first... The syntax for setting upload limits is:

    $CGI::POST_MAX=1024 * 200; # max 200k posts # also, though it's already a default... $CGI::DISABLE_UPLOADS = 0;

    I don't know where your got the $cgi_lib::maxdata line, but it's not going to to anything. Note that CGI.pm is entirely different from cgi-lib.pl, and CGI.pm is the generally recommended tool. Sounds like you might be looking at docs or code that were written for cgi-lib.pl.

    To narrow the problem, you could try a simple form with no file fields, just a text box or two, and see how the simple test script responds.

    I've posted a copy of the test script at http://lmsg.net/cgi-bin/lc1/formtest.cgi, feel free to point your form at it for testing. (Max 200k posts is set.)

    Update, typo: changed from /cgi/ to /cgi-bin/

    If the test script works on my server, but not yours, I suspect you might have networking and/or server problems. On the other hand, if it doesn't work for you on my server, I suspect you have client/browser problems, since your sample form works nicely for me when pointed at the above URL. I get...


      Got Something:
    • file: C:\temp\test.jpg
    • Submit: Add Image

    What OSes are involved, and what web server software are you using? Also, be sure to clear your browser cache when doing testing like this, I tell ya the wierdest stuff can happen with IE's caching :)

    Good luck....

      Thanks, the problem was that Perl had defaulted to disabe uploads. Adding $CGI::DISABLE_UPLOADS = 0; worked. Thanks again!!

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