mirror of
https://codeberg.org/crimeflare/cloudflare-tor
synced 2024-11-15 22:02:43 +00:00
334 lines
12 KiB
Perl
334 lines
12 KiB
Perl
#!/usr/bin/perl -w
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# This Irssi script automatically check incoming http/https links
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# and replace it to archive one if it is MITMed.
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#
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# Irssi /set Options
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# you can view your current settigns by running "/set cflarealt" in Irssi
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#
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# /set cflarealt_debug <on|off> -- (off) if you have a problem try turning this on to debug
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# /set cflarealt_send2channel <on|off> -- (off) send the converted URL publicly to everyone in your channels
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# /set cflarealt_channels <"#channel1, #channel2, etc"> -- Channels to automatically convert. Empty Defaults to all
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#
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# /set cflarealt_shorturl_activate <on|off> -- (off) set it 'on' to use shortner
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# /set cflarealt_shorturl_min <40> -- (40) How long a url has to be to trigger automatic url shortening
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# /set cflarealt_shorturl_useonion <on|off> -- (off) set it 'on' to use .onion
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#
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# /set cflarealt_localdbpath <"string to path"> -- () '/path/database/split/'
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# /set cflarealt_uselocaldb <on|off> -- (off) if 'on', please set path to local database (or the script will die)
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#
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# /set cflarealt_printurl <on|off> -- (off) if 'on' print converted URL
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# /set cflarealt_donotsend <on|off> -- (off) if 'on' do not send converted URL
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#---------------------------------------------------------------------
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##use strict;
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use vars qw($VERSION %IRSSI);
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$VERSION = "20200501";
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%IRSSI = (
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# Special thanks to: "eo, tsaavik"
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authors => "Anonymous",
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contact => 'anonymous@cloudflare-tor.nab',
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name => "irssi_cf_alturl.pl",
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description => "Cloudflare URL replacer",
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license => "WTFPL",
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changed => "$VERSION"
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);
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use Irssi;
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use Irssi::Irc;
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use LWP::Simple;
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use LWP::UserAgent;
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my (
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$cfg_minurllen, $cfg_send2chan, $cfg_useshort, $cfg_shortonion,
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$cfg_isdebug, $cfg_uselocaldb, $cfg_localdbpath, $cfg_chanlist
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);
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my ( $cfg_printurl, $cfg_donotsendurl );
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my @cached = ();
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sub setuphandler {
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Irssi::settings_add_bool( "cflarealt", "cflarealt_send2channel", 0 );
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if ( Irssi::settings_get_bool("cflarealt_send2channel") ) {
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print "cflarealt: sending of shorturl's to public channels enabled";
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$cfg_send2chan = 1;
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}
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Irssi::settings_add_bool( "cflarealt", "cflarealt_shorturl_activate", 0 );
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if ( Irssi::settings_get_bool("cflarealt_shorturl_activate") ) {
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print "cflarealt: URL shortner enabled";
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$cfg_useshort = 1;
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}
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Irssi::settings_add_bool( "cflarealt", "cflarealt_shorturl_useonion", 0 );
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if ( Irssi::settings_get_bool("cflarealt_shorturl_useonion") ) {
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print "cflarealt: URL onion enabled";
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$cfg_shortonion = 1;
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}
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Irssi::settings_add_str( "cflarealt", "cflarealt_channels", "" );
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$cfg_chanlist = Irssi::settings_get_str("cflarealt_channels");
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if ($cfg_chanlist) {
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print "cflarealt: Following channels are now parsed $cfg_chanlist";
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}
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Irssi::settings_add_int( "cflarealt", "cflarealt_shorturl_min", 40 );
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my $old_min_url_length = $cfg_minurllen;
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$cfg_minurllen = Irssi::settings_get_int("cflarealt_shorturl_min");
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if ( $cfg_minurllen != $old_min_url_length ) {
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print "cflarealt: min_url_length sucessfully set to $cfg_minurllen";
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}
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Irssi::settings_add_bool( "cflarealt", "cflarealt_debug", 0 );
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my $old_debug = $cfg_isdebug;
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$cfg_isdebug = Irssi::settings_get_bool("cflarealt_debug");
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if ( $cfg_isdebug != $old_debug ) {
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if ($cfg_isdebug) {
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print "cflarealt: Debug Mode Enabled";
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$cfg_isdebug = 1;
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}
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else {
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print "cflarealt: Debug Mode Disabled";
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$cfg_isdebug = 0;
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}
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}
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Irssi::settings_add_bool( "cflarealt", "cflarealt_uselocaldb", 0 );
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if ( Irssi::settings_get_bool("cflarealt_uselocaldb") ) {
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print "cflarealt: Lookup Local DB enabled";
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$cfg_uselocaldb = 1;
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}
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Irssi::settings_add_str( "cflarealt", "cflarealt_localdbpath", "" );
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$cfg_localdbpath = Irssi::settings_get_str("cflarealt_localdbpath");
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if ($cfg_localdbpath) {
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print "cflarealt: DB path set to $cfg_localdbpath";
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}
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Irssi::settings_add_bool( "cflarealt", "cflarealt_printurl", 0 );
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if ( Irssi::settings_get_bool("cflarealt_printurl") ) {
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print "cflarealt: print URL enabled";
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$cfg_printurl = 1;
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}
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Irssi::settings_add_bool( "cflarealt", "cflarealt_donotsend", 0 );
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if ( Irssi::settings_get_bool("cflarealt_donotsend") ) {
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print "cflarealt: dont-send enabled";
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$cfg_donotsendurl = 1;
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}
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}
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sub GotUrl {
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my ( $server, $data, $nick, $addr, $target ) = @_;
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if ( !$server || !$server->{connected} ) {
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Irssi::print("Not connected to server");
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return;
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}
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return unless ( goodchan($target) );
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$data =~ s/^\s+//;
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$data =~ s/\s+$//;
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my @urls = ();
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my @knownShortFQDN = ( 'tinyurl.com', 'bit.ly' );
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my ( $url, $a, $return, $char, $ch ) = "";
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my $same = 0;
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return unless ( ( $data =~ /\bhttp\:/ ) || ( $data =~ /\bhttps\:/ ) );
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deb("$target triggered GotUrl() with url: $data");
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# split on whitespace and get the url(s) out
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# done this way in case there are more than
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# one url per line.
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foreach ( split( /\s/, $data ) ) {
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if ( ( $_ =~ /^http\:/ ) || ( $_ =~ /^https\:/ ) ) {
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foreach $a (@urls) {
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if ( $_ eq $a ) {
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# incase they use the same url on the line.
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$same = 1;
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next;
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}
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}
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if ( $same == 0 ) {
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$same = 0;
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push( @urls, $_ );
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}
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}
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}
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my ( $myurl, $fqdn, $junk, $mytype );
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my ( $url, $browser, $response, $answer );
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my ( $line, $ifoundit );
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foreach (@urls) {
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$myurl = $_;
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( $junk, $fqdn ) = split( /\/\//, $myurl, 2 );
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( $fqdn, $junk ) = split( /\//, $fqdn, 2 );
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$mytype = '';
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if ( length($fqdn) >= 4 ) {
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## Start of Act
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## ACT0. If ShortURL, expand it. (knownShortFQDN)
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if ( grep( /^$fqdn$/, @knownShortFQDN ) ) {
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deb("$target Expand $fqdn");
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$browser = LWP::UserAgent->new;
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$answer = HTTP::Request->new( GET => $myurl );
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$response = $browser->request($answer);
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if ( $response->is_success and $response->previous ) {
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if ( $myurl ne $response->request->uri ) {
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$junk = $response->request->uri;
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if ( index( $junk, 'http' ) == 0 ) {
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deb("$target Expanded $fqdn");
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$myurl = $junk;
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( $junk, $fqdn ) = split( /\/\//, $myurl, 2 );
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( $fqdn, $junk ) = split( /\//, $fqdn, 2 );
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}
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}
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}
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}
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## ACT1: Update URL if Cloudflared
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if ( grep( /^$fqdn$/, @cached ) ) {
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deb("$target Found in Cache $fqdn");
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$mytype = '^B^C3[Archive]^O ';
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$myurl = 'https://web.archive.org/web/' . $myurl;
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}
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else {
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if ( $cfg_uselocaldb == 1 ) {
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deb("$target Lookup local DB about $fqdn");
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open( CFSFILE,
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$cfg_localdbpath
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. "cloudflare_"
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. substr( $fqdn, 0, 1 )
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. ".txt" )
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or die "file not found for $fqdn";
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$ifoundit = 0;
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while (<CFSFILE>) {
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$line = $_;
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$line =~ s/\R//g;
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if ( $line eq $fqdn ) {
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$ifoundit = 1;
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last;
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}
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}
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close CFSFILE;
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if ( $ifoundit == 1 ) {
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push( @cached, $fqdn );
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$mytype = '^B^C3[Archive]^O ';
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$myurl = 'https://web.archive.org/web/' . $myurl;
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}
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}
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else {
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deb("$target Asking API about $fqdn");
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$answer = '';
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$url =
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'https://api.wodferndripvpe6ib4uz4rtngrnzichnirgn7t5x64gxcyroopbhsuqd.onion/_/ismitm.php?f='
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. $fqdn;
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$browser = LWP::UserAgent->new;
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$browser->agent("Mozilla/5.0 (Windows NT 6.1; rv:78.0) Gecko/20100101 Firefox/78.0");
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$response = $browser->get($url);
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$answer = $response->content;
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if ( $answer eq '[true,true]' ) {
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push( @cached, $fqdn );
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$mytype = '^B^C3[Archive]^O ';
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$myurl = 'https://web.archive.org/web/' . $myurl;
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}
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}
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}
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## ACT2: Short URL __if__ enabled and long
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if ( $cfg_useshort == 1 ) {
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if ( length($myurl) > $cfg_minurllen ) {
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if ( $cfg_shortonion == 1 ) {
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deb("$target Creating Short Onion for $myurl");
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$url = 'http://hbfkuwcbzhcht33fetbiajuh7i6gqupgnyupxcmujiky34drzmpajrid.onion/?i=new&url=' . $myurl;
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$browser = LWP::UserAgent->new;
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$browser->agent("Mozilla/5.0 (Windows NT 6.1; rv:78.0) Gecko/20100101 Firefox/78.0");
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$response = $browser->get($url);
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$answer = $response->content;
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if (
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index( $answer,
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'http://hbfkuwcbzhcht33fetbiajuh7i6gqupgnyupxcmujiky34drzmpajrid.onion/?' ) == 0
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)
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{
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if ( $mytype eq '' ) {
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$mytype = '^B^C7[Onion]^O ';
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}
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else {
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$mytype = '^B^C2[Onion,Archive]^O ';
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}
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$myurl = $answer;
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}
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}
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else {
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deb("$target Creating Short URL for $myurl");
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$url =
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'https://ux.nu/api/short?format=plain&url=' . $myurl;
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$browser = LWP::UserAgent->new;
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$browser->agent("Mozilla/5.0 (Windows NT 6.1; rv:78.0) Gecko/20100101 Firefox/78.0");
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$response = $browser->get($url);
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$answer = $response->content;
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if ( index( $answer, 'https://ux.nu/' ) == 0 ) {
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if ( $mytype eq '' ) {
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$mytype = '^B^C7[Short]^O ';
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}
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else {
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$mytype = '^B^C2[Short,Archive]^O ';
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}
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$myurl = $answer;
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}
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}
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}
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}
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##ACT3: Result
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if ( $cfg_printurl == 1 ) {
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Irssi::print("URL: $mytype$myurl");
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}
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if ( $cfg_donotsendurl != 1 ) {
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if ( $cfg_send2chan == 1 ) {
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$server->command("msg $target $myurl");
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}
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else {
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$server->print( "$target", "$mytype$myurl",
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MSGLEVEL_CLIENTCRAP );
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}
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}
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## End of Act
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}
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deb("$target process done for input $myurl");
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}
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## Cleanup cache
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if ( $#cached > 500 ) {
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@cached = ();
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}
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return;
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}
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sub deb($) {
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Irssi::print(shift) if ( $cfg_isdebug == 1 );
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}
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sub goodchan {
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my $chan = shift;
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return ("OK") if ( !$cfg_chanlist );
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foreach ( split( /\,/, $cfg_chanlist ) ) {
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return ("$_") if ( $_ =~ /$chan/i );
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}
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return undef;
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}
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setuphandler();
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Irssi::signal_add( "setup changed", "setuphandler" );
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Irssi::signal_add_last( "message public", "GotUrl" );
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Irssi::signal_add_last( "ctcp action", "GotUrl" );
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