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Janitors' Tools - Bulk node retitler

by Corion (Pope)
on Jul 16, 2003 at 17:31 UTC ( #274951=sourcecode: print w/ replies, xml ) Need Help??

Category: Perlmonks.org Related Scripts
Author/Contact Info bulk-node-retitler@corion.net
Description:

From time to time, a janitor has to clean up a thread where the original poster chose a bad title for his question. If the janitor is too late, there are many nodes to retitle. This WWW::Mechanize script automates this process.

Of course, this script will only work, if you are a janitor, and it will break horribly if the PerlMonks HTML changes enough.

Update: castaway noted that the retitler broke due to recent changes in how internal links are done. The current version fixes that.

#!/usr/bin/perl -w
use strict;
use WWW::Mechanize;
use URI::URL;
use POSIX;
use HTML::Entities qw( encode_entities );

# Bulk node retitler

my ($old,$new,$node_id) = @ARGV;
die "Need the part to look for" unless $old;
die "Need something to replace it with " unless defined $new;
die "Need a node id" unless $node_id;

$old = qr/$old/;

my $agent = WWW::Mechanize->new();
$agent->env_proxy();

my ($user,$password) = ($ENV{PERLMONKS_USER},$ENV{PERLMONKS_PASS});
die "No Perlmonks password found" unless $password;
die "No Perlmonks user found" unless $user;

# Login and get the node-to-be-retitled
$agent->get("http://www.perlmonks.org/index.pl?node_id=$node_id");
$agent->form(2);
$agent->current_form->value('user', $user);
$agent->current_form->value('passwd', $password );
$agent->current_form->value('expires', '+10y');
$agent->click('login');

die "No title found in node $node_id\n"
  unless $agent->content =~ m!<title>\s*(.+?)\s*</title>!ism;
my $fulltitle = $1;

my @links = @{$agent->links};
my $counter = -1;
my @node_ids = map { $counter++;
                     ($_->[1] =~ m!^(?:Re(\^\d+)?:\s*)*\Q$fulltitle\E!
+i and $_->[0] =~ m!^(?:/index.pl)?\?node_id=(\d+)$!i) ? $1 : ()
                   } @links;

my $history = sprintf "<p><small>%s Edit by [%s]: Changed title from '
+%s'</small></p>",
                  strftime('%Y%m%d',gmtime()),$user, encode_entities($
+fulltitle);

retitle_node($node_id,$old,$new,$history);
retitle_node($_,$old,$new)
  for (@node_ids);

sub retitle_node {
  my ($node_id,$old,$new,$history) = @_;
  $agent->get(sprintf 'http://www.perlmonks.org/index.pl?displaytype=e
+ditors;node_id=%s', $node_id);
  $agent->form(2);
  my $old_title = $agent->current_form->value('update_title');
  my $new_title = $old_title;
  $new_title =~ s!$old!$new!;
  if ($new_title ne $old_title) {
    warn "Retitling $old_title to $new_title\n";
    $agent->current_form->value('update_title', $new_title);
    if ($history) {
      my $doctext = $agent->current_form->value('update_doctext') . $h
+istory;
      $agent->current_form->value('update_doctext', $doctext);
    };
    $agent->current_form->value('blah','update');
    $agent->click('blah');
    # Maybe also /msg the respective user ...
  };
  $agent->follow_link( text => 'display');
};

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