cypherpunks/stop_cloudflare
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stop_cloudflare
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Code Issues Releases Activity

20190505v

This commit is contained in:
unethical 2019-05-04 14:03:22 +00:00
parent 8b3dc3cc97
commit 4413334f89
1 changed files with 132 additions and 55 deletions
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187
tool/irssi_cf_alturl.pl
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@ -1,15 +1,27 @@
#!/usr/bin/perl -w
# This Irssi script automatically check incoming http/https links
# and replace it to archive one if it is MITMed.
#
# Irssi /set Options
# you can view your current settigns by running "/set cflarealt" in Irssi
#
# /set cflarealt_debug <on|off> -- (off) if you have a problem try turning this on to debug
# /set cflarealt_send2channel <on|off> -- (off) send the converted URL publicly to everyone in your channels
# /set cflarealt_channels <"#channel1, #channel2, etc"> -- Channels to automatically convert. Empty Defaults to all
# /set cflarealt_shorturl_activate <on|off> -- (off) set it 'on' to use shortner
# /set cflarealt_shorturl_min <40> -- (40) How long a url has to be to trigger automatic url shortening
#
# Optional manual usage is
# /cflarealt http://yourlongurl.com/blahblahblah
#---------------------------------------------------------------------
use strict;
##use strict;
use vars qw($VERSION %IRSSI);
$VERSION = "20190501";
%IRSSI = (
$VERSION = "20190505";
%IRSSI = (
# Special thanks to: "eo, tsaavik"
authors => "Anonymous",
contact => 'nobody@cloudflare-tor.nab',
contact => 'anonymous@cloudflare-tor.nab',
name => "irssi_cf_alturl.pl",
description => "Cloudflare URL replacer",
license => "WTFPL",
@ -21,15 +33,49 @@ use Irssi::Irc;
use LWP::Simple;
use LWP::UserAgent;
my ( $min_url_length, $send_to_channel, $debug, $channel_list );
my ( $cfg_minurllen, $cfg_send2chan, $cfg_useshort, $cfg_isdebug, $cfg_chanlist );
my @cached = ();
sub setuphandler {
$send_to_channel = 1;
$channel_list = '';
my $old_min_url_length = $min_url_length;
$min_url_length = 0;
my $old_debug = $debug;
$debug = 0;
Irssi::settings_add_bool( "cflarealt", "cflarealt_send2channel", 0 );
if ( Irssi::settings_get_bool("cflarealt_send2channel") ) {
print "cflarealt: sending of shorturl's to public channels enabled";
$cfg_send2chan = 1;
}
Irssi::settings_add_bool( "cflarealt", "cflarealt_shorturl_activate", 0 );
if ( Irssi::settings_get_bool("cflarealt_shorturl_activate") ) {
print "cflarealt: URL shortner enabled";
$cfg_useshort = 1;
}
Irssi::settings_add_str( "cflarealt", "cflarealt_channels", "" );
$cfg_chanlist = Irssi::settings_get_str("cflarealt_channels");
if ($cfg_chanlist) {
print "cflarealt: Following channels are now parsed $cfg_chanlist";
}
Irssi::settings_add_int( "cflarealt", "cflarealt_shorturl_min", 40 );
my $old_min_url_length = $cfg_minurllen;
$cfg_minurllen = Irssi::settings_get_int("cflarealt_shorturl_min");
if ( $cfg_minurllen != $old_min_url_length ) {
print "cflarealt: min_url_length sucessfully set to $cfg_minurllen";
}
Irssi::settings_add_bool( "cflarealt", "cflarealt_debug", 0 );
my $old_debug = $cfg_isdebug;
$cfg_isdebug = Irssi::settings_get_bool("cflarealt_debug");
if ( $cfg_isdebug != $old_debug ) {
if ($cfg_isdebug) {
print "cflarealt: Debug Mode Enabled";
$cfg_isdebug = 1;
}
else {
print "cflarealt: Debug Mode Disabled";
$cfg_isdebug = 0;
}
}
}
sub GotUrl {
@ -38,20 +84,26 @@ sub GotUrl {
Irssi::print("Not connected to server");
return;
}
return unless ( goodchan($target) );
$data =~ s/^\s+//;
$data =~ s/\s+$//;
my @urls = ();
my ( $url, $a, $return, $char, $ch, $result, $choice ) = "";
my ( $url, $a, $return, $char, $ch, $result ) = "";
my $same = 0;
my $sitewas = "t";
my @chars = ();
return unless ( ( $data =~ /\bhttp\:/ ) || ( $data =~ /\bhttps\:/ ) );
deb("$target triggered GotUrl() with url: $data");
# split on whitespace and get the url(s) out
# done this way in case there are more than
# one url per line.
foreach ( split( /\s/, $data ) ) {
if ( ( $_ =~ /^http\:/ ) || ( $_ =~ /^https\:/ ) ) {
foreach $a (@urls) {
if ( $_ eq $a ) {
# incase they use the same url on the line.
$same = 1;
next;
}
@ -62,59 +114,84 @@ sub GotUrl {
}
}
}
my ( $myurl, $fqdn, $junk );
my ( $url, $browser, $response, $answer );
foreach (@urls) {
@chars = split( //, $_ );
foreach $char (@chars) {
if ( $char !~ /[A-Za-z0-9]/ ) {
$ch = sprintf( "%%%02x", ord($char) );
$result .= $ch;
$myurl = $_;
( $junk, $fqdn ) = split( /\/\//, $myurl, 2 );
( $fqdn, $junk ) = split( /\//, $fqdn, 2 );
if ( length($fqdn) >= 4 ) {
## Start of Act
## ACT1: Update URL if Cloudflared
if ( grep( /^$fqdn$/, @cached ) ) {
deb("$target Found in Cache $fqdn");
$myurl = 'https://web.archive.org/web/' . $myurl;
}
else {
$result .= $char;
deb("$target Asking API about $fqdn");
$answer = '';
$url = 'https://searxes.danwin1210.me/collab/open/ismitm.php?f='
. $fqdn;
$browser = LWP::UserAgent->new;
$browser->agent("Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0");
$response = $browser->get($url);
$answer = $response->content;
if ( $answer == '[true,true]' ) {
push( @cached, $fqdn );
$myurl = 'https://web.archive.org/web/' . $myurl;
}
}
## ACT2: Short URL __if__ enabled and long
if ( $cfg_useshort == 1 ) {
if ( length($myurl) > $cfg_minurllen ) {
# Should change from tinyurl because it is Cloudflare.
# What is the alternative solution?
deb("$target Creating Short URL for $myurl");
$url = 'https://tinyurl.com/api-create.php?url=' . $result;
$browser = LWP::UserAgent->new;
$browser->agent("Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0");
$response = $browser->get($url);
$answer = $response->content;
if ( index( $answer, 'http://tinyurl.com/' ) == 0 ) {
$myurl = $answer;
}
}
}
##ACT3: Shout Result
if ( $cfg_send2chan == 1 ) {
$server->command("msg $target $myurl");
}
else {
$server->print( "$target", "$myurl", MSGLEVEL_CLIENTCRAP );
}
## End of Act
}
$choice = 'searxesmitmdb';
deb("mitmtest(\$server, $target, $result)");
mitmtest( $server, $target, $result );
deb("$target process done for input $myurl");
}
if ( $#cached > 500 ) {
@cached = ();
}
return;
}
sub mitmtest {
my ( $server, $chan, $longurl ) = @_;
my ($fqdn) = $longurl =~ m!(https?://[^:/]+)!;
my ( $junk, $fqdn ) = split( /\/\//, $fqdn, 2 );
my $scanned_url;
## FQDN is ok
if (length($fqdn) >= 4) {
my $url = 'https://searxes.danwin1210.me/collab/open/ismitm.php?f=' . $fqdn;
my $browser = LWP::UserAgent->new;
$browser->agent("cloudflare cflare_alt.pl");
my $response = $browser->get($url);
$scanned_url = $response->content;
}
## if the array[1] is true => it is MITM
if ( $scanned_url == '[true,true]' ) {
$scanned_url = 'https://web.archive.org/web/' . $longurl;
}
else {
$scanned_url = $longurl;
}
if ( $response->is_success ) {
if ( $send_to_channel == 1 ) {
$server->command("msg $chan $scanned_url");
}
else {
$server->print( "$chan", "$scanned_url", MSGLEVEL_CLIENTCRAP );
}
}
else {
deb("ERROR: service is down or not pingable");
}
sub deb($) {
Irssi::print(shift) if ( $cfg_isdebug == 1 );
}
sub deb($) {
Irssi::print(shift) if ( $debug == 1 );
sub goodchan {
my $chan = shift;
return ("OK") if ( !$cfg_chanlist );
foreach ( split( /\,/, $cfg_chanlist ) ) {
return ("$_") if ( $_ =~ /$chan/i );
}
return undef;
}
setuphandler();