http://www.perlmonks.org?node_id=251788

sulfericacid has asked for the wisdom of the Perl Monks concerning the following question:

This might seem odd to some of you but I'm having an unusual problem, it's not the first time this happened either. My script runs nearly perfect right now..it uploads ONLY image formats onto my server, on the other hand if the file attempted to upload is not the correct format no errors are being displayed. (even though there aren't errors, the file isn't uploaded..so that's good). You will notice throughout my script I commented out all or dies because the stop the script from posting any data other than the form to the screen.

Does anyone have any idea why or die would be affecting my script even if it isn't called?

#!/usr/bin/perl -w open( STDERR, ">>/home/sulfericacid/public_html/test/error.log" ) or die "Cannot open error log, weird...an error opening an error log +: $!"; use warnings; use CGI qw/:standard/; use POSIX; my $mode = 0755; print header, start_html('upload form'); print "Please only upload image formats.<br>"; print start_form( -method => post, -enctype => 'multipart/form-data' ), table( Tr( td("File: "), td( filefield( -name => 'upload', -size => 50, -maxlength => 80 ), ), ), Tr( td(), td( submit( 'button', 'submit' ), ) ) ), end_form(), hr; if ( param() ) { # take form data my $remotefile = param('upload'); # make new variable to prevent overwriting of form data my $filename = $remotefile; # remove all directories in the file name path $filename =~ s/^.*[\\\/]//; # full file path to upload directory (must include filename) my $localfile = "/home/sulfericacid/public_html/upload/files/$file +name"; # full url to upload directory (cannot include filename or an end +slash /) my $url = "http://sulfericacid.perlmonk.org/upload/file"; my $type = uploadInfo($remotefile)->{'Content-Type'}; unless ( $type eq 'image/gif' ) { die "image files only!"; } # open a new file and transfer bit by bit from what's in the buffe +r open( SAVED, ">>$localfile" ); # || die $!; while ( $bytesread = read( $remotefile, $buffer, 1024 ) ) { print SAVED $buffer; } close SAVED; chmod $mode, "$localfile"; # or die "can't chmod: $!"; print qq(File was uploaded to <a href="http://sulfericacid.perlmonk.org/uplo +ad/files/$filename">http://sulfericacid.perlmonk.org/upload/files/$fi +lename</a>); # required since module was not preinstalled on server use lib "/home/sulfericacid/public_html/lib/"; use Image::Info qw(image_info dim); # assigning info to a filename (better be an image) my $info = image_info("/home/sulfericacid/public_html/upload/files/$filenam +e"); # if for any reason we can't open the file, this error trap should +pick it up if ( my $error = $info->{error} ) { die "Can't parse image info: $error\n"; } # unommit next line if you want to use/post the image's color #my $color = $info->{color_type}; # declaring the width and heighth of your image my ( $w, $h ) = dim($info); print "<br>"; print qq(&lt;p style ="background:url($url/$filename)\;width:$w\;height:$h\; +"&gt;); }


"Age is nothing more than an inaccurate number bestowed upon us at birth as just another means for others to judge and classify us"

sulfericacid