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Re^2: LWP - 500 Internal Error

by oalvi (Initiate)
on Sep 01, 2009 at 13:25 UTC ( #792638=note: print w/ replies, xml ) Need Help??


in reply to Re: LWP - 500 Internal Error
in thread LWP - 500 Internal Error

Hi and Thank for the link, Was my thread, vry interesting too - but i didn't think I could start from there anew. Anyway, I tried adding the sfprint debug, doesn't work for me yet.

# !C:\Perl\bin use strict; use warnings; use LWP::UserAgent; @ARGV = qw[ http://www.eserve.com.sa/ ]; my $url = shift or die "URL expected\n"; my $useragent = LWP::UserAgent->new; $useragent->proxy(['http', 'ftp','https'], 'http://192.168.5.5:8080/') +; $useragent -> timeout( 20 ); my $request = HTTP::Request->new( GET => $url ); my $response = $useragent->request($request); my $err = sprintf "(%d)(%s)(%d)(%s)\n", $!,$!,$^E,$^E; print $useragent->proxy('http'),"\n"; print $response->status_line, "\n"; print "Err : $err \n";

I get this error

http://192.168.5.5:8080/ 200 OK Err : (9)(Bad file descriptor)(0)()

Seems it ran everything alrights, something simple here I must be missing


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Re^3: LWP - 500 Internal Error
by Anonymous Monk on Sep 01, 2009 at 13:39 UTC
    200 OK means there was no error
      Hi,

      yes, that particular link worked fine, 200 OK. What I meant to ask about was the error

      Err : (9)(Bad file descriptor)(0)()

      as the output of

      my $err = sprintf "(%d)(%s)(%d)(%s)\n", $!,$!,$^E,$^E; print "Err : $err \n";

      I was expecting as mentioned in the link you sent that this particular part of the code would work like a sniffer and decipher more information as to why it fails

      Really appreciate the feedback

        I was expecting as mentioned in the link you sent that this particular part of the code would work like a sniffer and decipher more information as to why it fails

        Like I said in that link you use $err to get more info about which Unknown Error it is. You only look if the request fails, and only because "Unknown Error" is diagnostically useless. $! expands to "Unknown Error" for too many errors, like

        (100)(Unknown error)(100)(Cannot create another system semaphore) (101)(Unknown error)(101)(The exclusive semaphore is owned by another +process) (102)(Unknown error)(102)(The semaphore is set and cannot be closed) (103)(Unknown error)(103)(The semaphore cannot be set again) (104)(Unknown error)(104)(Cannot request exclusive semaphores at inter +rupt time) (105)(Unknown error)(105)(The previous ownership of this semaphore has + ended) (106)(Unknown error)(106)(Insert the diskette for drive %1)
        You're also supposed to look at print $response->dump,"\n"; on error, because it might contain more than "Unknown Error"

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