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Refactor UrlTitles plugin

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Moved logic from get_title.pl applet to plugin.
Removed get_title.pl applet.
ProcessManager::execute_process() can now take a reader subref.
This commit is contained in:
Pragmatic Software 2022-02-27 16:58:01 -08:00
parent 66856441e4
commit 02cc7fc488
6 changed files with 297 additions and 264 deletions
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220
applets/get_title.pl vendored
View File

@ -1,220 +0,0 @@
#!/usr/bin/perl -w
# SPDX-FileCopyrightText: 2021 Pragmatic Software <pragma78@gmail.com>
# SPDX-License-Identifier: MIT
# Quick and dirty by :pragma
# Update: Did I say quick and dirty? I meant lazy and filthy. I should rewrite this completely.
use LWP::UserAgent;
use HTML::Entities;
use Text::Levenshtein qw(fastdistance);
use Time::HiRes qw(gettimeofday);
if ($#ARGV <= 0) {
print "Usage: title nick URL\n";
exit;
}
my $nick = shift(@ARGV);
my $arguments = join("%20", @ARGV);
print STDERR "nick: [$nick], args: [$arguments]\n";
$arguments =~ s/\W$//;
exit if $arguments =~ m{https?://matrix\.to}i;
exit if $arguments =~ m{https?://.*\.c$}i;
exit if $arguments =~ m{https?://.*\.h$}i;
exit if $arguments =~ m{https?://ibb.co/}i;
exit if $arguments =~ m{https?://.*onlinegdb.com}i;
exit if $arguments =~ m{googlesource.com/}i;
exit if $arguments =~ m{https?://git}i and $arguments !~ /commit/i and $arguments !~ /github.com/;
exit if $arguments =~ m{https://.*swissborg.com}i;
exit if $arguments =~ m{https://streamable.com}i;
exit if $arguments =~ m{https://matrix.org}i;
exit if $arguments =~ m{https://freenode.net/news/spam-shake}i;
exit if $arguments =~ m{https://twitter.com/ISCdotORG}i;
exit if $arguments =~ m{https://evestigatorsucks.com}i;
exit if $arguments =~ m{https://MattSTrout.com}i;
exit if $arguments =~ m{https://encyclopediadramatica.rs/Freenodegate}i;
exit if $arguments =~ m{https://bryanostergaard.com}i;
exit if $arguments =~ m{https://williampitcock.com}i;
exit if $arguments =~ m{https?://coliru\..*}i;
exit if $arguments =~ m{https://www.youtube.com/user/l0de/live}i;
exit if $arguments =~ m{localhost}i;
exit if $arguments =~ m{127}i;
exit if $arguments =~ m{192.168}i;
exit if $arguments =~ m{file://}i;
exit if $arguments =~ m{\.\.}i;
exit if $arguments =~ m{https?://www.irccloud.com/pastebin}i;
exit if $arguments =~ m{http://smuj.ca/cl}i;
exit if $arguments =~ m{/man\d+/}i;
exit if $arguments =~ m{godbolt.org}i;
exit if $arguments =~ m{man\.cgi}i;
exit if $arguments =~ m{wandbox}i;
exit if $arguments =~ m{ebay.com/itm}i;
exit if $arguments =~ m/prntscr.com/i;
exit if $arguments =~ m/imgbin.org/i;
exit if $arguments =~ m/jsfiddle.net/i;
exit if $arguments =~ m/port70.net/i;
exit if $arguments =~ m/notabug.org/i;
exit if $arguments =~ m/flickr.com/i;
exit if $arguments =~ m{www.open-std.org/jtc1/sc22/wg14/www/docs/dr}i;
exit if $arguments =~ m/cheezburger/i;
exit if $arguments =~ m/rafb.me/i;
exit if $arguments =~ m/rextester.com/i;
exit if $arguments =~ m/explosm.net/i;
exit if $arguments =~ m/stackoverflow.com/i;
exit if $arguments =~ m/scratch.mit.edu/i;
exit if $arguments =~ m/c-faq.com/i;
exit if $arguments =~ m/imgur.com/i;
exit if $arguments =~ m/sprunge.us/i;
exit if $arguments =~ m/pastebin.ws/i;
exit if $arguments =~ m/hastebin.com/i;
exit if $arguments =~ m/lmgtfy.com/i;
exit if $arguments =~ m/gyazo/i;
exit if $arguments =~ m/imagebin/i;
exit if $arguments =~ m/\/wiki\//i;
exit if $arguments =~ m!github.com/.*/tree/.*/source/.*!i;
exit if $arguments =~ m!github.com/.*/commits/.*!i;
#exit if $arguments =~ m/github.com/i and $arguments !~ m/commit/i;
exit if $arguments =~ m!/blob/!i;
exit if $arguments =~ m/wiki.osdev.org/i;
exit if $arguments =~ m/wikipedia.org/i;
exit if $arguments =~ m/everfall.com/i;
exit if $arguments =~ m/fukung.net/i;
exit if $arguments =~ m/\/paste\//i;
exit if $arguments =~ m/paste\./i;
exit if $arguments =~ m/pastie/i;
exit if $arguments =~ m/ideone.com/i;
exit if $arguments =~ m/codepad.org/i;
exit if $arguments =~ m/^http\:\/\/past(e|ing)\./i;
exit if $arguments =~ m/paste.*\.(?:com|org|net|ch|ca|de|uk|info)/i;
exit if $arguments =~ m/pasting.*\.(?:com|org|net|ca|de|uk|info|ch)/i;
print STDERR "fetching title\n";
my $ua = LWP::UserAgent->new;
if ($arguments =~ /youtube|youtu.be|googlevideo|twitter/) {
$ua->agent("Googlebot");
$ua->max_size(1200 * 1024);
} else {
$ua->agent("Mozilla/5.0");
$ua->max_size(200 * 1024);
}
my $response = $ua->get("$arguments");
if (not $response->is_success) {
#print "Couldn't get link.\n";
use Data::Dumper;
print STDERR Dumper $response;
die "Couldn't get link: $arguments";
}
my $text = $response->decoded_content;
if ($text =~ m/<title>(.*?)<\/title>/msi) { $t = $1; }
else {
use Data::Dumper;
print STDERR Dumper $response;
print STDERR "No title for link.\n";
exit;
}
my $quote = chr(226) . chr(128) . chr(156);
my $quote2 = chr(226) . chr(128) . chr(157);
my $dash = chr(226) . chr(128) . chr(147);
$t =~ s/\s+/ /g;
$t =~ s/^\s+//g;
$t =~ s/\s+$//g;
$t =~ s/<[^>]+>//g;
$t =~ s/<\/[^>]+>//g;
$t =~ s/$quote/"/g;
$t =~ s/$quote2/"/g;
$t =~ s/$dash/-/g;
$t =~ s/&quot;/"/g;
$t =~ s/&#8220;/"/g;
$t =~ s/&#8221;/"/g;
$t =~ s/&amp;/&/g;
$t =~ s/&nsb;/ /g;
$t =~ s/&#39;/'/g;
$t =~ s/&lt;/</g;
$t =~ s/&gt;/>/g;
$t =~ s/&laquo;/<</g;
$t =~ s/&raquo;/>>/g;
$t =~ s/&gt;/>/g;
$t =~ s/&bull;/-/g;
$t =~ s/<em>//g;
$t =~ s/<\/em>//g;
if (length $t > 300) {
$t = substr($t, 0, 300);
$t = "$t [...]";
}
# $nick =~ s/^(.)(.*)/$1|$2/;
$t = decode_entities($t);
$t =~ s/^\s+//;
$t =~ s/\s+$//;
my ($file) = $arguments =~ m/.*\/(.*)$/;
$file =~ s/[_-]/ /g;
my $distance = fastdistance(lc $file, lc $t);
my $length = (length $file > length $t) ? length $file : length $t;
if ($distance / $length < 0.75) { exit; }
print STDERR "passed distance, checking title\n";
exit if $t !~ m/\s/; # exit if title is only one word -- this isn't usually interesting
exit if $t =~ m{christel}i;
exit if $t =~ m{^Loading}i;
exit if $t =~ m{streamable}i;
exit if $t =~ m{freenode}i;
exit if $t =~ m{ico scam}i;
exit if $t =~ m{^IBM Knowledge Center$}i;
exit if $t =~ m{Freenode head of infrastructure}i;
exit if $t =~ m{ISC on Twitter}i;
exit if $t =~ m{spambot.*freenode}i;
exit if $t =~ m{freenode.*spambot}i;
exit if $t =~ m{christel};
exit if $t =~ m/^Coliru Viewer$/i;
exit if $t =~ m/^Gerrit Code Review$/i;
exit if $t =~ m/^Public Git Hosting -/i;
exit if $t =~ m/git\/blob/i;
exit if $t =~ m/\sdiff\s/i;
exit if $t =~ m/- Google Search$/;
exit if $t =~ m/linux cross reference/i;
exit if $t =~ m/screenshot/i;
exit if $t =~ m/pastebin/i;
exit if $t =~ m/past[ea]/i;
exit if $t =~ m/^[0-9_-]+$/;
exit if $t =~ m/^Index of \S+$/;
exit if $t =~ m/(?:sign up|login)/i;
print STDERR "passed spam filters\n";
my @data;
if (open my $fh, "<", "last-title-$nick.dat") {
@data = <$fh>;
close $fh;
chomp $data[0];
exit if $t eq $data[0] and scalar gettimeofday - $data[1] < 1800;
}
open my $fh, ">", "last-title-$nick.dat";
print $fh "$t\n";
print $fh scalar gettimeofday, "\n";
close $fh;
print "Title of $nick\'s link: $t\n" if length $t;

2
lib/PBot/Core/Applets.pm
View File

@ -109,7 +109,7 @@ sub launch_applet {
}
if (length $stderr) {
if (open(my $fh, '>>', "$applet-stderr")) {
if (open(my $fh, '>>:encoding(UTF-8)', "$applet-stderr")) {
print $fh $stderr;
close $fh;
} else {

8
lib/PBot/Core/ProcessManager.pm
View File

@ -55,7 +55,7 @@ sub remove_process {
}
sub execute_process {
my ($self, $context, $subref, $timeout) = @_;
my ($self, $context, $subref, $timeout, $reader_subref) = @_;
$timeout //= 30; # default timeout 30 seconds
@ -141,7 +141,11 @@ sub execute_process {
$self->add_process($context->{pid}, $context);
# add reader handler
$self->{pbot}->{select_handler}->add_reader($reader, sub { $self->process_pipe_reader($context->{pid}, @_) });
if (defined $reader_subref) {
$self->{pbot}->{select_handler}->add_reader($reader, sub { $reader_subref->($context->{pid}, @_) });
} else {
$self->{pbot}->{select_handler}->add_reader($reader, sub { $self->process_pipe_reader($context->{pid}, @_) });
}
# return empty string since reader will handle the output when child is finished
return '';

2
lib/PBot/Core/Storage/DualIndexHashObject.pm
View File

@ -111,7 +111,7 @@ sub save {
$self->{pbot}->{logger}->log("Saving $self->{name} to $filename\n");
if (not $self->get_data('$metadata$', '$metadata$', 'update_version')) {
$self->add('$metadata$', '$metadata$', { update_version => PBot::VERSION::BUILD_REVISION });
$self->add('$metadata$', '$metadata$', { update_version => PBot::VERSION::BUILD_REVISION }, 1, 1);
}
$self->set('$metadata$', '$metadata$', 'name', $self->{name}, 1);

325
lib/PBot/Plugin/UrlTitles.pm
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@ -2,7 +2,7 @@
#
# Purpose: Display titles of URLs in channel messages.
# SPDX-FileCopyrightText: 2021 Pragmatic Software <pragma78@gmail.com>
# SPDX-FileCopyrightText: 2021, 2022 Pragmatic Software <pragma78@gmail.com>
# SPDX-License-Identifier: MIT
package PBot::Plugin::UrlTitles;
@ -10,12 +10,36 @@ use parent 'PBot::Plugin::Base';
use PBot::Imports;
use Encode;
use Text::Levenshtein::XS qw(distance);
use LWP::UserAgent::Paranoid;
use HTML::Entities;
use JSON::XS;
use constant {
TIMEOUT => 30,
USER_AGENT => 'Mozilla/5.0 (compatible)',
MAX_SIZE => 1024 * 200,
};
sub initialize {
my ($self, %conf) = @_;
$self->{pbot}->{registry}->add_default('text', 'general', 'show_url_titles', $conf{show_url_titles} // 1);
$self->{pbot}->{registry}->add_default('array', 'general', 'show_url_titles_channels', $conf{show_url_titles_channels} // '.*');
$self->{pbot}->{registry}->add_default('array', 'general', 'show_url_titles_ignore_channels', $conf{show_url_titles_ignore_channels} // 'none');
# remember recent titles so we don't repeat them too often
my $filename = $self->{pbot}->{registry}->get_value('general', 'data_dir') . '/url-title.hist';
$self->{history} = PBot::Core::Storage::DualIndexHashObject->new(
pbot => $self->{pbot},
name => 'URL title history',
filename => $filename,
);
$self->{history}->load;
# can be overridden per-channel
$self->{pbot}->{registry}->add_default('text', 'general', 'show_url_titles', $conf{show_url_titles} // 1);
# listen to these handlers
$self->{pbot}->{event_dispatcher}->register_handler('irc.public', sub { $self->show_url_titles(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.caction', sub { $self->show_url_titles(@_) });
}
@ -26,58 +50,283 @@ sub unload {
$self->{pbot}->{event_dispatcher}->remove_handler('irc.caction');
}
sub show_url_titles {
my ($self, $event_type, $event) = @_;
my $channel = $event->{event}->{to}[0];
my ($nick, $user, $host) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host);
my $msg = $event->{event}->{args}[0];
sub is_ignored_url {
my ($self, $url) = @_;
return 0 if not $msg =~ m/https?:\/\/[^\s]/;
return 0 if $event->{interpreted};
return 1 if $url =~ m{https?://matrix\.to}i;
return 1 if $url =~ m{https?://.*\.c$}i;
return 1 if $url =~ m{https?://.*\.h$}i;
return 1 if $url =~ m{https?://ibb.co/}i;
return 1 if $url =~ m{https?://.*onlinegdb.com}i;
return 1 if $url =~ m{googlesource.com/}i;
return 1 if $url =~ m{https?://git}i and $url !~ /commit/i and $url !~ /github.com/;
return 1 if $url =~ m{https://.*swissborg.com}i;
return 1 if $url =~ m{https://streamable.com}i;
return 1 if $url =~ m{https://matrix.org}i;
return 1 if $url =~ m{https?://coliru\..*}i;
return 1 if $url =~ m{localhost}i;
return 1 if $url =~ m{127}i;
return 1 if $url =~ m{192.168}i;
return 1 if $url =~ m{file://}i;
return 1 if $url =~ m{\.\.}i;
return 1 if $url =~ m{https?://www.irccloud.com/pastebin}i;
return 1 if $url =~ m{http://smuj.ca/cl}i;
return 1 if $url =~ m{/man\d+/}i;
return 1 if $url =~ m{godbolt.org}i;
return 1 if $url =~ m{man\.cgi}i;
return 1 if $url =~ m{wandbox}i;
return 1 if $url =~ m{ebay.com/itm}i;
return 1 if $url =~ m/prntscr.com/i;
return 1 if $url =~ m/imgbin.org/i;
return 1 if $url =~ m/jsfiddle.net/i;
return 1 if $url =~ m/port70.net/i;
return 1 if $url =~ m/notabug.org/i;
return 1 if $url =~ m/flickr.com/i;
return 1 if $url =~ m{www.open-std.org/jtc1/sc22/wg14/www/docs/dr}i;
return 1 if $url =~ m/cheezburger/i;
return 1 if $url =~ m/rafb.me/i;
return 1 if $url =~ m/rextester.com/i;
return 1 if $url =~ m/explosm.net/i;
return 1 if $url =~ m/stackoverflow.com/i;
return 1 if $url =~ m/scratch.mit.edu/i;
return 1 if $url =~ m/c-faq.com/i;
return 1 if $url =~ m/imgur.com/i;
return 1 if $url =~ m/sprunge.us/i;
return 1 if $url =~ m/pastebin.ws/i;
return 1 if $url =~ m/hastebin.com/i;
return 1 if $url =~ m/lmgtfy.com/i;
return 1 if $url =~ m/gyazo/i;
return 1 if $url =~ m/imagebin/i;
return 1 if $url =~ m/\/wiki\//i;
return 1 if $url =~ m!github.com/.*/tree/.*/source/.*!i;
return 1 if $url =~ m!github.com/.*/commits/.*!i;
return 1 if $url =~ m!/blob/!i;
return 1 if $url =~ m/wiki.osdev.org/i;
return 1 if $url =~ m/wikipedia.org/i;
return 1 if $url =~ m/fukung.net/i;
return 1 if $url =~ m/\/paste\//i;
return 1 if $url =~ m/paste\./i;
return 1 if $url =~ m/pastie/i;
return 1 if $url =~ m/ideone.com/i;
return 1 if $url =~ m/codepad.org/i;
return 1 if $url =~ m/^http\:\/\/past(e|ing)\./i;
return 1 if $url =~ m/past(?:e|ing).*\.(?:com|org|net|ch|ca|de|uk|info)/i;
if ($self->{pbot}->{ignorelist}->is_ignored($channel, "$nick!$user\@$host")) {
# not ignored
return 0;
}
sub is_ignored_title {
my ($self, $title) = @_;
return 1 if $title =~ m{^Loading}i;
return 1 if $title =~ m{streamable}i;
return 1 if $title =~ m{^IBM Knowledge Center$}i;
return 1 if $title =~ m{Freenode head of infrastructure}i;
return 1 if $title =~ m/^Coliru Viewer$/i;
return 1 if $title =~ m/^Gerrit Code Review$/i;
return 1 if $title =~ m/^Public Git Hosting -/i;
return 1 if $title =~ m/git\/blob/i;
return 1 if $title =~ m/\sdiff\s/i;
return 1 if $title =~ m/- Google Search$/;
return 1 if $title =~ m/linux cross reference/i;
return 1 if $title =~ m/screenshot/i;
return 1 if $title =~ m/pastebin/i;
return 1 if $title =~ m/past[ea]/i;
return 1 if $title =~ m/^[0-9_-]+$/;
return 1 if $title =~ m/^Index of \S+$/;
return 1 if $title =~ m/(?:sign up|login)/i;
# not ignored
return 0;
}
sub get_title {
my ($self, $context) = @_;
my $url = $context->{arguments};
my $ua = LWP::UserAgent::Paranoid->new(request_timeout => TIMEOUT);
$ua->agent(USER_AGENT);
$ua->max_size(MAX_SIZE);
my $response = $ua->get($url);
if (not $response->is_success) {
$self->{pbot}->{logger}->log("Error getting URL [$url]\n");
return 0;
}
my $title;
if ($response->title) {
$title = decode('UTF-8', $response->title);
} else {
my $text = $response->decoded_content;
if ($text =~ m/<title>(.*?)<\/title>/msi) {
$title = $1;
}
}
if (not defined $title or not length $title) {
$self->{pbot}->{logger}->log("No title for URL [$url]\n");
return 0;
}
$title = decode_entities($title);
# disregard one-word titles; these aren't usually interesting
# (and are usually already present in the URL itself)
return 0 if $title !~ /\s/;
# truncate long title
if (length $title > 400) {
$title = substr($title, 0, 400);
$title = "$title [...]";
}
# fuzzy compare file against title
my ($file) = $url =~ m/.*\/(.*)$/;
$file =~ s/[_-]+/ /g;
my $distance = distance(lc $file, lc $title);
my $length = (length $file > length $title) ? length $file : length $title;
# disregard title if 75%+ similiar to file
return 0 if $distance / $length < 0.75;
# disregard ignored titles
return 0 if $self->is_ignored_title($title);
# send result back to parent
$context->{result} = $title;
}
sub title_pipe_reader {
my ($self, $pid, $buf) = @_;
# retrieve context object from child
my $context = decode_json $buf or do {
$self->{pbot}->{logger}->log("Failed to decode bad json: [$buf]\n");
return;
};
# context is no longer forked
delete $context->{pid};
my $title = delete $context->{result};
return 0 if not defined $title or not length $title;
# disregard recent titles (15 min)
my $data = $self->{history}->get_data($context->{from}, $title);
if (defined $data) {
if (time - $data->{timestamp} < 900) {
return 0;
}
}
# update history
$data = {
timestamp => time,
hostmask => $context->{hostmask},
};
$self->{history}->add($context->{from}, $title, $data, 0, 1);
# set result
$context->{result} = "Title of $context->{nick}'s link: $title";
# send result off to bot to be handled
$context->{checkflood} = 1;
$self->{pbot}->{interpreter}->handle_result($context);
}
sub show_url_titles {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host) = (
$event->{event}->nick,
$event->{event}->user,
$event->{event}->host
);
my ($channel, $msg) = (
$event->{event}->{to}[0],
$event->{event}->{args}[0]
);
# get show_url_titles for channel or true if not defined
my $enabled = $self->{pbot}->{registry}->get_value($channel, 'show_url_titles') // 1;
# disabled in channel
return 0 if !$enabled;
return 0 if $self->{pbot}->{registry}->get_value($channel, 'no_url_titles');
# disabled globally (unless allowed by channel)
return 0 if !$self->{pbot}->{registry}->get_value('general', 'show_url_titles') && !$enabled;
# message already handled by bot command
return 0 if $event->{interpreted};
# no url in message
return 0 if not $msg =~ m/https?:\/\/[^\s]/;
# ignored user
return 0 if $self->{pbot}->{ignorelist}->is_ignored($channel, "$nick!$user\@$host");
# no titles for unidentified users in +z channels
my $chanmodes = $self->{pbot}->{channels}->get_meta($channel, 'MODE');
if (defined $chanmodes and $chanmodes =~ m/z/) {
my $account = $self->{pbot}->{messagehistory}->{database}->get_message_account($nick, $user, $host);
my $nickserv = $self->{pbot}->{messagehistory}->{database}->get_current_nickserv_account($account);
return 0 if not defined $nickserv or not length $nickserv;
}
if ( $self->{pbot}->{registry}->get_value('general', 'show_url_titles')
and not $self->{pbot}->{registry}->get_value($channel, 'no_url_titles')
and not grep { $channel =~ /$_/i } $self->{pbot}->{registry}->get_value('general', 'show_url_titles_ignore_channels')
and grep { $channel =~ /$_/i } $self->{pbot}->{registry}->get_value('general', 'show_url_titles_channels'))
{
my $count = 0;
while ($msg =~ s/(https?:\/\/[^\s]+)//i && ++$count <= 3) {
my $url = $1;
my $count = 0;
if ($self->{pbot}->{antispam}->is_spam('url', $url)) {
$self->{pbot}->{logger}->log("Ignoring spam URL $url\n");
next;
}
while ($msg =~ s/(https?:\/\/[^\s]+)//i && ++$count <= 3) {
my $url = $1;
my $context = {
from => $channel,
nick => $nick,
user => $user,
host => $host,
hostmask => "$nick!$user\@$host",
command => "title $nick $url",
root_channel => $channel,
root_keyword => "title",
keyword => "title",
arguments => "$nick $url",
suppress_no_output => 1,
};
$url =~ s/\W$//;
$url =~ s,https://mobile.twitter.com,https://twitter.com,i;
$self->{pbot}->{applets}->execute_applet($context);
if ($self->{pbot}->{antispam}->is_spam('url', $url)) {
$self->{pbot}->{logger}->log("Ignoring spam URL $url\n");
next;
}
if ($self->is_ignored_url($url)) {
$self->{pbot}->{logger}->log("Ignoring URL $url\n");
next;
}
my $context = {
from => $channel,
nick => $nick,
user => $user,
host => $host,
hostmask => "$nick!$user\@$host",
command => "title $nick $url",
root_channel => $channel,
root_keyword => "title",
keyword => "title",
arguments => $url,
suppress_no_output => 1,
};
$self->{pbot}->{process_manager}->execute_process(
$context,
sub { $self->get_title(@_) },
30,
sub { $self->title_pipe_reader(@_) },
);
}
return 0;
}

4
lib/PBot/VERSION.pm
View File

@ -25,8 +25,8 @@ use PBot::Imports;
# These are set by the /misc/update_version script
use constant {
BUILD_NAME => "PBot",
BUILD_REVISION => 4503,
BUILD_DATE => "2022-02-24",
BUILD_REVISION => 4505,
BUILD_DATE => "2022-02-27",
};
sub initialize {}