405 lines
10 KiB
Perl
405 lines
10 KiB
Perl
# one of hexchat contributors said this on freenode's #hexchat
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# 2017-11-26 15:36 < TingPing> eleksir, the hexchat api isn't thread safe
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# on practice it developes to memory leak
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use HexChat qw(:all);
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use threads;
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use threads::shared;
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use strict;
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use warnings "all";
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use MIME::Base64;
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use URI::URL;
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use HTTP::Tiny; # Note that HexChat-2.12.4 bundled perl do not support https via this module, they just miss ssl support at all
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# activeperl 5.20.* crashes, so do not replace bundled perl with activeperl
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my $IMAGEMAGICK = undef; # use on demand
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if ($^O ne 'cygwin') { # cygwin 2.882 64-bit hag broken Image::Magick
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$IMAGEMAGICK = eval {
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require Image::Magick;
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import Image::Magick qw(ping);
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return 1;
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}
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}
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sub dlfunc($); # thread, that checks and downloads stuff
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sub is_picture($);
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sub urlencode($);
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sub hookfn;
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sub loadliststatus($);
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sub loadlist($);
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sub savelist(@);
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sub savesetting(@);
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sub dl_cmd;
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sub freehooks;
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my $wgetpath; share($wgetpath);
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my $script_name = "Image URL Downloader";
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HexChat::register($script_name, '1.0', 'Automatically downloads image URLs via HTTP::Tiny', \&freehooks);
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HexChat::print("$script_name loaded\n");
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my $help = 'Usage:
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/dl enable nick|domain <name> - enable nick or domain blacklist
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/dl disable nick|domain <name> - disable nick or domain blacklist
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/dl add nick|domain <name> - adds nick or domain to apropriate blacklist
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/dl del nick|domain <name> - removes nick or domain from apropriate blacklist
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/dl show - show blacklists
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/dl info - same as above
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';
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my @hooks;
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push @hooks, HexChat::hook_print('Channel Message', \&hookfn);
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push @hooks, HexChat::hook_print('Channel Msg Hilight', \&hookfn);
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push @hooks, HexChat::hook_print('Channel Action', \&hookfn);
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push @hooks, HexChat::hook_print('Channel Action Hilight', \&hookfn);
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push @hooks, HexChat::hook_command('dl', \&dl_cmd);
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my $active = 0;
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share($active);
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sub hookfn {
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my ($nick, $text, $modechar) = @{$_[0]};
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my $nicklist = loadliststatus('dl_nicklist');
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if ($nicklist != 0) {
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my @nicklist = loadlist('dl_nicks');
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foreach (@nicklist) {
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next unless(defined($_));
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next if($_ eq '');
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if ($_ eq $nick) {
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undef $nick; undef $text; undef $modechar;
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undef $nicklist;
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@nicklist = -1; undef @nicklist;
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return HexChat::EAT_NONE;
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}
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}
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@nicklist = -1; undef @nicklist;
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}
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undef $nicklist;
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my @words = split(/\s+/, $text);
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foreach (@words) {
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my $str = $_;
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next unless(substr($str, 0, 4) eq 'http');
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if ($str =~ m{https?://([a-zA-Z0-9.-]+\.[a-zA-Z]+)/(?:.*)}) {
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my $domain = $1;
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my $domainlist = loadliststatus('dl_domainlist');
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if ($domainlist != 0) {
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my @domainlist = loadlist('dl_domains');
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foreach (@domainlist) {
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next unless(defined($_));
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next if($_ eq '');
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if ($_ eq $domain) {
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undef $nick; undef $text; undef $modechar;
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@words = -1; undef @words;
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undef $str; undef $domain;
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undef $domainlist;
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@domainlist = -1; undef @domainlist;
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return HexChat::EAT_NONE;
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}
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}
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@domainlist = -1, undef @domainlist;
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}
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undef $domainlist;
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$active = 1;
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my $t = undef;
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do {
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$t = threads->create('dlfunc', $str);
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sleep 1 unless(defined($t));
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} unless (defined($t));
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$t->detach;
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undef $t;
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if ($active == 1) {
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HexChat::hook_timer( 100, sub { return REMOVE if ($active == 0); return KEEP; } );
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}
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}
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}
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@words = -1; undef @words;
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undef $nick; undef $text; undef $modechar;
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return HexChat::EAT_NONE;
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}
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sub dlfunc($) {
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my $url = shift;
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my $extension = is_picture($url);
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if (defined($extension)) {
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my $savepath = sprintf("%s/imgsave", HexChat::get_info("configdir"));
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if ($^O eq 'MSWin32') {
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$savepath = $ENV{'USERPROFILE'} . '/Pictures';
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}
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mkdir ($savepath) unless (-d $savepath);
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if ( (lc($url) =~ /\.(gif|jpeg|png|webm|mp4)$/) and ($1 eq $extension) ){
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$savepath = $savepath . "/" . s/[^\w!., -#\:\?]/_/gr;
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} else {
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$savepath = $savepath . "/" . s/[^\w!., -#]\:\?/_/gr . ".$extension";
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}
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$url = urlencode($url);
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my $http = HTTP::Tiny->new();
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$http->mirror($url, $savepath);
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undef $http;
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if (($^O ne 'cygwin') and defined($IMAGEMAGICK)) {
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eval {
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if ((-f $savepath) and ($savepath =~ /(png|jpe?g|gif)$/i)){
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my $im = Image::Magick->new();
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my $rename = 1;
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my (undef, undef, undef, $format) = $im->Ping($savepath);
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if (defined($format)) {
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$rename = 0 if (($format eq 'JPEG') and ($savepath =~ /jpe?g$/i));
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$rename = 0 if (($format eq 'GIF') and ($savepath =~ /gif$/i));
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$rename = 0 if (($format =~ /^PNG/) and ($savepath =~ /png$/i));
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rename $savepath, sprintf("%s.%s", $savepath, lc($format)) if ($rename == 1);
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}
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undef $im; undef $rename;
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}
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}
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}
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undef $savepath;
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}
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$active = 0;
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undef $url; undef $extension;
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}
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sub is_picture($) {
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my $url = shift;
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$url = urlencode($url);
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my $r = undef;
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my $http = HTTP::Tiny->new();
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$r = $http->request('HEAD', $url);
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undef $url;
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undef $http;
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if ($r->{'success'} and defined($r->{'headers'}->{'content-type'})) {
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if ($r->{'headers'}->{'content-type'} =~ /^image\/gif/) { $r = 'gif'; }
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elsif ($r->{'headers'}->{'content-type'} =~ /^image\/jpe?g/){ $r = 'jpeg';}
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elsif ($r->{'headers'}->{'content-type'} =~ /^image\/png/) { $r = 'png'; }
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elsif ($r->{'headers'}->{'content-type'} =~ /^video\/webm/) { $r = 'webm';}
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elsif ($r->{'headers'}->{'content-type'} =~ /^video\/mp4/) { $r = 'mp4'; }
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else { $r = undef; }
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} else {
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$r = undef;
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}
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return $r;
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}
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sub urlencode($) {
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my $url = shift;
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my $urlobj = url $url;
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$url = $urlobj->as_string;
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undef $urlobj;
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return $url;
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}
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sub loadliststatus($){
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my $listtype = shift;
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my $list = HexChat::plugin_pref_get($listtype);
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unless (defined($list)) {
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savesetting('list', '0');
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$list = 0;
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}
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undef $listtype;
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return $list;
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}
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sub loadlist($){
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my $setting = shift;
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my $val = HexChat::plugin_pref_get($setting);
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unless (defined($val)) {
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savesetting($setting, encode_base64('', ''));
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$val = '';
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}
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my @values = map { decode_base64($_); } split(/ /, $val);
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undef $setting; undef $val;
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return @values;
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}
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sub savelist(@) {
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my $setting = shift;
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my @list = map { encode_base64($_, ''); } @_;
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my $value = join(' ', @list);
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@list = -1; undef @list;
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return savesetting($setting, $value);
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}
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sub savesetting(@) {
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my $setting = shift;
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my $value = shift;
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if (HexChat::plugin_pref_set($setting, $value) == 0) {
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HexChat::printf("Unable to save settings for %s\n", $script_name);
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undef $setting; undef $value;
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return undef;
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}
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undef $setting;
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return 1;
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}
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sub dl_cmd {
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shift(@{$_[0]});
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my $cmd = shift(@{$_[0]});
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my $entity = shift(@{$_[0]});
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my $value = join(' ', @{$_[0]});
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HexChat::print("\n");
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my $msg = undef;
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if (defined($cmd)) {
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if ($cmd eq 'enable') {
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if($entity eq 'nick') {
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if (defined(savesetting('dl_nicklist', '1'))) {
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$msg = "Nicks blacklist now enabled\n";
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}
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} elsif ($entity eq 'domain') {
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if (defined(savesetting('dl_domainlist', '1'))) {
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$msg = "Domains blacklist now enabled\n";
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}
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}
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} elsif ($cmd eq 'disable') {
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if($entity eq 'nick') {
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if (defined(savesetting('dl_nicklist', '0'))) {
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$msg = "Nicks blacklist now disabled\n";
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}
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} elsif ($entity eq 'domain') {
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if (defined(savesetting('dl_domainlist', '0'))) {
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$msg = "Domains blacklist now disabled\n";
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}
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}
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} elsif (($cmd eq 'show') or ($cmd eq 'info')) {
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$msg = '';
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if (loadliststatus('dl_nicklist') == 0) {
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$msg .= "Nicks blacklist: disabled\n";
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} else {
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$msg .= "Nicks blacklist: enabled\n";
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}
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$msg .= "Blacklisted nicks = " . join( ', ', loadlist('dl_nicks')) ."\n";
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if (loadliststatus('dl_domainlist') == 0) {
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$msg .= "Domains blacklist: disabled\n";
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} else {
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$msg .= "Domains blacklist: enabled\n";
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}
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$msg .= "Blacklisted domains = " . join( ', ', loadlist('dl_domains')) . "\n";
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} elsif ($cmd eq 'add') {
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if ((defined($entity)) and (defined($value))) {
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if ($entity eq 'nick') {
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my @nicks = (loadlist('dl_nicks'), $value);
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unless (defined(savelist('dl_nicks', @nicks))) {
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undef $cmd; undef $entity; undef $value; undef $msg;
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@nicks = -1; undef @nicks;
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return HexChat::EAT_ALL;
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}
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$msg = sprintf("Nicks blacklist now: %s\n", join(', ', @nicks));
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@nicks = -1; undef @nicks;
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} elsif ($entity eq 'domain') {
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my @domains = (loadlist('dl_domains'), $value);
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unless (defined(savelist('dl_domains', @domains))) {
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undef $cmd; undef $entity; undef $value; undef $msg;
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@domains = -1; undef @domains;
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return HexChat::EAT_ALL;
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}
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$msg = sprintf("Domains blacklist now: %s\n", join(', ', @domains));
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@domains = -1; undef @domains;
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}
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}
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} elsif ($cmd eq 'del') {
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if ((defined($entity)) and (defined($value))) {
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if ($entity eq 'nick') {
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my @list = loadlist('dl_nicks');
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my @nicklist;
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foreach (@list) {
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next if ($_ eq $value);
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push @nicklist, $_;
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}
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@list = -1; undef @list;
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unless (defined(savelist('dl_nicks', @nicklist))) {
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undef $cmd; undef $entity; undef $value; undef $msg;
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@nicklist = -1; undef @nicklist;
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return HexChat::EAT_ALL;
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}
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$msg = sprintf("Nicks blacklist now: %s\n", join(', ', @nicklist));
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@nicklist = -1; undef @nicklist;
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} elsif ($entity eq 'domain') {
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my @list = loadlist('dl_domains');
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my @domainlist;
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foreach (@list) {
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next if ($_ eq $value);
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push @domainlist, $_;
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}
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@list = -1; undef @list;
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unless (defined(savelist('dl_domains', @domainlist))) {
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undef $cmd; undef $entity; undef $value; undef $msg;
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@domainlist = -1; undef @domainlist;
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return HexChat::EAT_ALL;
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}
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$msg = sprintf("Domains blacklist now: %s\n", join(', ', @domainlist));
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@domainlist = -1; undef @domainlist;
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}
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}
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}
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}
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unless(defined($msg)) {
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HexChat::print($help);
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} else {
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HexChat::print($msg);
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}
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undef $cmd; undef $entity; undef $value; undef $msg;
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return HexChat::EAT_ALL;
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}
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sub freehooks {
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foreach (@hooks) {
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HexChat::unhook($_);
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}
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return HexChat::EAT_ALL;
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}
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