| 1 | #!/usr/bin/env perl |
| 2 | |
| 3 | use 5.38.2; |
| 4 | use strict; |
| 5 | use warnings; |
| 6 | |
| 7 | use Getopt::Long qw(GetOptions); |
| 8 | |
| 9 | sub usage { |
| 10 | print("Usage: urlref.pl [--get-code|--help]\n |
| 11 | run without args to add URL\n"); |
| 12 | exit 0; |
| 13 | } |
| 14 | |
| 15 | my $getcode; |
| 16 | |
| 17 | GetOptions( |
| 18 | "get-code=s" => \$getcode, |
| 19 | "help" => \&usage, |
| 20 | ) or die "\nif you want to get a URL, supply a code: --get-code [CODE]\n"; |
| 21 | |
| 22 | sub encode { |
| 23 | my @chars = ("A".."Z","0".."9","_"); |
| 24 | |
| 25 | my $string; |
| 26 | $string .= $chars[int(rand(@chars))] for 1..3; |
| 27 | |
| 28 | return $string; |
| 29 | } |
| 30 | |
| 31 | sub addurl { |
| 32 | my $url = <STDIN>; |
| 33 | chomp $url; |
| 34 | my $code = encode($url); |
| 35 | |
| 36 | if (!length $url == 0) { |
| 37 | print("code is: $code\n"); |
| 38 | |
| 39 | my $filename = "links.txt"; |
| 40 | |
| 41 | open(my $fh, ">>", "$filename") or die "could not open $filename: $!"; |
| 42 | print $fh "$code $url\n"; |
| 43 | close $fh; |
| 44 | |
| 45 | print("saved URL to file: $filename\n"); |
| 46 | } else { |
| 47 | die("no URL given"); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | if ($getcode) { |
| 52 | my $filename = "links.txt"; |
| 53 | |
| 54 | open(my $fh, "<", "$filename") or die "could not open $filename: $!"; |
| 55 | while(my $line = <$fh>) { |
| 56 | if($line =~ /^$getcode\s/) { |
| 57 | print("URL is: $line"); |
| 58 | } |
| 59 | } |
| 60 | close $fh; |
| 61 | } else { |
| 62 | addurl |
| 63 | } |