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Copy pathLW2.pm
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LW2.pm
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# NOPOD NOTICE: the documentation and whitespace have been stripped
# from this file in order to reduce filesize.
#
#!/usr/bin/perl
# LW2 version 2.5
# LW2 Copyright (c) 2009, Jeff Forristal (wiretrip.net)
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# - Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
package LW2;
$LW2::VERSION="2.5";
$PACKAGE='LW2';
BEGIN {
package LW2;
$PACKAGE='LW2';
$LW_SSL_LIB = 0;
$LW_SSL_KEEPALIVE = 0;
$LW_NONBLOCK_CONNECT = 1;
$_SSL_LIBRARY = undef;
eval "use Socket";
if ( !$@ ) {
eval "use Net::SSLeay"; # do we have SSL support?
if ( !$@ ) {
$LW_SSL_LIB = 1;
$_SSL_LIBRARY = 'Net::SSLeay';
Net::SSLeay::load_error_strings();
Net::SSLeay::SSLeay_add_ssl_algorithms();
Net::SSLeay::randomize();
}
else {
eval "use Net::SSL";
if ( !$@ ) {
$LW_SSL_LIB = 2;
$_SSL_LIBRARY = 'Net::SSL';
}
}
if ( $^O !~ /Win32/ ) {
eval "use POSIX qw(:errno_h :fcntl_h)";
if ($@) { $LW_NONBLOCK_CONNECT = 0; }
}
else {
*EINPROGRESS = sub { 10036 };
*EWOULDBLOCK = sub { 10035 };
}
}
} # BEGIN
sub auth_brute_force {
my ( $auth_method, $hrin, $user, $pwordref, $dom, $fail_code ) = @_;
my ( $P, %hout );
$fail_code ||= 401;
return undef if ( !defined $auth_method || length($auth_method) == 0 );
return undef if ( !defined $user || length($user) == 0 );
return undef if ( !( defined $hrin && ref($hrin) ) );
return undef if ( !( defined $pwordref && ref($pwordref) ) );
map {
( $P = $_ ) =~ tr/\r\n//d;
auth_set( $auth_method, $hrin, $user, $P, $dom );
return undef if ( http_do_request( $hrin, \%hout ) );
return $P if ( $hout{whisker}->{code} != $fail_code );
} @$pwordref;
return undef;
}
sub auth_unset {
my $href = shift;
return if ( !defined $href || !ref($href) );
delete $$href{Authorization};
delete $$href{'Proxy-Authorization'};
delete $$href{whisker}->{auth_callback};
delete $$href{whisker}->{auth_proxy_callback};
delete $$href{whisker}->{auth_data};
delete $$href{whisker}->{auth_proxy_data};
}
sub auth_set {
my ( $method, $href, $user, $pass, $domain ) = ( lc(shift), @_ );
return if ( !( defined $href && ref($href) ) );
return if ( !defined $user || !defined $pass );
if ( $method eq 'basic' ) {
$$href{'Authorization'} =
'Basic ' . encode_base64( $user . ':' . $pass, '' );
}
if ( $method eq 'proxy-basic' ) {
$$href{'Proxy-Authorization'} =
'Basic ' . encode_base64( $user . ':' . $pass, '' );
}
if ( $method eq 'ntlm' ) {
http_close($href);
$$href{whisker}->{auth_data} = ntlm_new( $user, $pass, $domain );
$$href{whisker}->{auth_callback} = \&_ntlm_auth_callback;
}
if ( $method eq 'proxy-ntlm' ) {
utils_croak('',"auth_set: proxy-ntlm auth w/ SSL not currently supported")
if ( $href->{whisker}->{ssl} > 0 );
http_close($href);
$$href{whisker}->{auth_proxy_data} = ntlm_new( $user, $pass, $domain );
$$href{whisker}->{auth_proxy_callback} = \&_ntlm_auth_proxy_callback;
}
}
sub cookie_new_jar {
return {};
}
sub cookie_read {
my ( $count, $jarref, $hrs, $hrq, $rej ) = ( 0, @_ );
return 0 if ( !( defined $jarref && ref($jarref) ) );
return 0 if ( !( defined $hrs && ref($hrs) ) );
return 0
if (
!(
defined $$hrs{whisker}->{cookies}
&& ref( $$hrs{whisker}->{cookies} )
)
);
my @opt;
if(defined $hrq && ref($hrq)){
push @opt, $hrq->{whisker}->{host};
my $u = $hrq->{whisker}->{uri};
$u=~s#/.*?$##;
$u='/' if($u eq '');
push @opt, $u, $rej;
}
foreach ( @{ $hrs->{whisker}->{cookies} } ) {
cookie_parse( $jarref, $_ , @opt);
$count++;
}
return $count;
}
sub cookie_parse {
my ( $jarref, $header ) = (shift, shift);
my ( $Dd, $Dp, $R ) = (shift, shift, shift||0);
return if ( !( defined $jarref && ref($jarref) ) );
return if ( !( defined $header && length($header) > 0 ) );
my @C = ( undef, undef, undef, undef, 0 );
$header =~ tr/\r\n//d;
my ($f,%seen,$n,$t) = (1);
while( length($header) ){
$header =~ s/^[ \t]+//;
last if(!($header =~ s/^([^ \t=;]+)//));
my $an = $1;
my $av = undef;
$header =~ s/^[ \t]+//;
if(substr($header,0,1) eq '='){
$header=~s/^=[ \t]*//;
if(substr($header,0,1) eq '"'){
my $p = index($header,'"',1);
last if($p == -1);
$av = substr($header,1,$p-1);
substr($header,0,$p+1)='';
} else {
$av = $1 if($header =~ s/^([^ \t;,]*)//);
}
} else {
my $p = index($header,';');
substr($header,0,$p)='';
}
$header =~ s/^.*?;//;
if($f){
return if(!defined $av);
($f,$n,$C[0])=(0,$an,$av);
} else {
$seen{$an}=$av if(!exists $seen{$an});
}
}
return if(!defined $n || $n eq '');
my $del = 0;
$del++ if($C[0] eq '');
$del++ if(defined $seen{'max-age'} && $seen{'max-age'} eq '0');
if($del){
delete $$jarref{$n} if exists $$jarref{$n};
return;
}
if(defined $seen{domain} && $seen{domain} ne ''){
$t = $seen{domain};
$t='.'.$t if(substr($t,0,1) ne '.' && !_is_ip_address($t));
} else {
$t=$Dd;
}
$t=~s/\.+$// if(defined $t);
$C[1]=$t;
if(defined $seen{path}){
$t = $seen{path};
} else {
$t=$Dp || '/';
}
$t=~s#/+$##;
$t='/' if(substr($t,0,1) ne '/');
$C[2]=$t;
$C[4]=1 if(exists $seen{secure});
return if($R && !_is_valid_cookie_match($C[1], $C[2], $Dd, $Dp));
$$jarref{$n} = \@C;
}
sub _is_ip_address {
my $n = shift;
return 1 if($n=~/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/);
return 0;
}
sub _is_valid_cookie_match {
my ($cd, $cp, $td, $tp) = @_;
return 0 if(index($tp,$cp)!=0);
if(substr($cd,0,1) eq '.'){
if( $td =~ /(.+)$cd$/ ){
return 1 if(index($1,'.') == -1);
}
return 0;
} else {
return 0 if($cd ne $td);
}
return 1;
}
sub cookie_write {
my ( $jarref, $hin, $override ) = @_;
my ( $name, $out ) = ( '', '' );
return if ( !( defined $jarref && ref($jarref) ) );
return if ( !( defined $hin && ref($hin) ) );
$override = $override || 0;
$$hin{'whisker'}->{'ssl'} = $$hin{'whisker'}->{'ssl'} || 0;
foreach $name ( keys %$jarref ) {
next if ( $name eq '' );
if($override){
$out .= "$name=$$jarref{$name}->[0];";
next;
}
next if ( $$hin{'whisker'}->{'ssl'} == 0 && $$jarref{$name}->[4] > 0 );
if ( $$hin{'whisker'}->{'host'} =~ /$$jarref{$name}->[1]$/i
&& $$hin{'whisker'}->{'uri'} =~ /^$$jarref{$name}->[2])/ )
{
$out .= "$name=$$jarref{$name}->[0];";
}
}
if ( $out ne '' ) { $$hin{'Cookie'} = $out; }
}
sub cookie_get {
my ( $jarref, $name ) = @_;
return undef if ( !( defined $jarref && ref($jarref) ) );
if ( defined $$jarref{$name} ) {
return @{ $$jarref{$name} };
}
return undef;
}
sub cookie_get_names {
my ( $jarref, $name ) = @_;
return undef if ( !( defined $jarref && ref($jarref) ) );
return keys %$jarref;
}
sub cookie_get_valid_names {
my ( $jarref, $domain, $url, $ssl ) = @_;
return () if ( !( defined $jarref && ref($jarref) ) );
return () if ( !defined $domain || $domain eq '' );
return () if ( !defined $url || $url eq '' );
$ssl ||= 0;
my (@r, $name);
foreach $name ( keys %$jarref ) {
next if ( $name eq '' );
next if ( $$jarref{$name}->[4] > 0 && $ssl == 0 );
if ( $domain =~ /$$jarref{$name}->[1]$/i
&& $url =~ /^$$jarref{$name}->[2])/i ) {
push @r, $name;
}
}
return @r;
}
sub cookie_set {
my ( $jarref, $name, $value, $domain, $path, $expire, $secure ) = @_;
my @construct;
return if ( !( defined $jarref && ref($jarref) ) );
return if ( $name eq '' );
if ( !defined $value || $value eq '' ) {
delete $$jarref{$name};
return;
}
$path = $path || '/';
$secure = $secure || 0;
@construct = ( $value, $domain, $path, undef, $secure );
$$jarref{$name} = \@construct;
}
%_crawl_config = (
'save_cookies' => 0,
'reuse_cookies' => 1,
'save_offsites' => 0,
'save_non_http' => 0,
'follow_moves' => 1,
'url_limit' => 1000,
'use_params' => 0,
'params_double_record' => 0,
'skip_ext' => {
gif => 1,
jpg => 1,
png => 1,
gz => 1,
swf => 1,
pdf => 1,
zip => 1,
wav => 1,
mp3 => 1,
asf => 1,
tgz => 1
},
'save_skipped' => 0,
'save_referrers' => 0,
'use_referrers' => 1,
'do_head' => 0,
'callback' => 0,
'netloc_bug' => 1,
'normalize_uri' => 1,
'source_callback' => 0
);
%_crawl_linktags = (
'a' => 'href',
'applet' => [qw(codebase archive code)],
'area' => 'href',
'base' => 'href',
'bgsound' => 'src',
'blockquote' => 'cite',
'body' => 'background',
'del' => 'cite',
'embed' => [qw(src pluginspage)],
'form' => 'action',
'frame' => [qw(src longdesc)],
'iframe' => [qw(src longdesc)],
'ilayer' => 'background',
'img' => [qw(src lowsrc longdesc usemap)],
'input' => [qw(src usemap)],
'ins' => 'cite',
'isindex' => 'action',
'head' => 'profile',
'layer' => [qw(background src)],
'link' => 'href',
'object' => [qw(codebase data archive usemap)],
'q' => 'cite',
'script' => 'src',
'table' => 'background',
'td' => 'background',
'th' => 'background',
'xmp' => 'href',
);
sub crawl_new {
my ( $start, $depth, $reqref, $trackref ) = @_;
my %X;
return undef if ( !defined $start || !defined $depth );
return undef if ( !defined $reqref || !ref($reqref) );
$trackref = {} if ( !defined $trackref || !ref($trackref) );
$X{track} = $trackref;
$X{request} = $reqref;
$X{depth} = $depth || 2;
$X{start} = $start;
$X{magic} = 7340;
$X{reset} = sub {
$X{errors} = []; # all errors encountered
$X{urls} = []; # temp; used to hold all URLs on page
$X{server_tags} = {}; # all server tags found
$X{referrers} = {}; # who refers to what URLs
$X{offsites} = {}; # all URLs that point offsite
$X{response} = {}; # temp; the response hash
$X{non_http} = {}; # all non_http URLs found
$X{cookies} = {}; # all cookies found
$X{forms} = {}; # all forms found
$X{jar} = {}; # temp; cookie jar
$X{url_queue} = []; # temp; URLs to still fetch
$X{config} = {};
%{ $X{config} } = %_crawl_config;
%{ $X{track} } = ();
$X{parsed_page_count} = 0;
};
$X{crawl} = sub { crawl( \%X, @_ ) };
$X{reset}->();
return \%X;
}
{ # START OF CRAWL CONTAINER
sub crawl {
my ( $C, $START, $MAX_DEPTH ) = @_;
return undef if ( !defined $C || !ref($C) || $C->{magic} != 7340 );
my $CONFIG = $C->{config};
my $TRACK = $C->{track};
my $URLS = $C->{urls};
my $RESP = $C->{response};
my $REQ = $C->{request};
my $Q = $C->{url_queue};
$START ||= $C->{start};
$C->{depth} = $MAX_DEPTH || $C->{depth};
my ( $COUNT, $T, @ST ) = ( 0, '' );
my @v = uri_split($START);
my $error = undef;
$error = 'Start protocol not http or https'
if ( $v[1] ne 'http' && $v[1] ne 'https' );
$error = 'Bad start host' if ( !defined $v[2] || $v[2] eq '' );
push( @{ $C->{errors} }, $error ) && return undef if ( defined $error );
@ST = ( $v[2], $v[3], $v[0], 1, '', '' );
$REQ->{whisker}->{ssl} = 1 if ( $v[1] eq 'https' );
$REQ->{whisker}->{host} = $ST[0];
$REQ->{whisker}->{port} = $ST[1];
$REQ->{whisker}->{lowercase_incoming_headers} = 1;
$REQ->{whisker}->{ignore_duplicate_headers} = 0;
delete $REQ->{whisker}->{parameters};
http_fixup_request($REQ);
push @$Q, \@ST;
while (@$Q) {
@ST = @{ shift @$Q };
next if ( defined $TRACK->{ $ST[2] } && $TRACK->{ $ST[2] } ne '?' );
if ( $ST[3] > $C->{depth} ) {
$TRACK->{ $ST[2] } = '?' if ( $CONFIG->{save_skipped} > 0 );
next;
}
$ST[4] = uri_get_dir( $ST[2] );
$REQ->{whisker}->{uri} = $ST[2];
if ( $ST[5] ne '' && $CONFIG->{use_referrers} > 0 ) {
$REQ->{Referrer} = $ST[5];
}
my $result = _crawl_do_request( $REQ, $RESP, $C );
if ( $result == 1 || $result == 2 ) {
push @{ $C->{errors} }, "$ST[2]: $RESP->{whisker}->{error}";
next;
}
$COUNT++;
$TRACK->{ $ST[2] } = $RESP->{whisker}->{code}
if ( $result == 0 || $result == 4 );
$TRACK->{ $ST[2] } = '?'
if ( ( $result == 3 || $result == 5 )
&& $CONFIG->{save_skipped} > 0 );
if ( defined $RESP->{server} && !ref( $RESP->{server} ) ) {
$C->{server_tags}->{ $RESP->{server} }++;
}
if ( defined $RESP->{'set-cookie'} ) {
if ( $CONFIG->{save_cookies} > 0 ) {
if ( ref( $RESP->{'set-cookie'} ) ) {
$C->{cookies}->{$_}++
foreach ( @{ $RESP->{'set-cookie'} } );
}
else {
$C->{cookies}->{ $RESP->{'set-cookie'} }++;
}
}
cookie_read( $C->{jar}, $RESP )
if ( $CONFIG->{reuse_cookies} > 0 );
}
next if ( $result == 4 || $result == 5 );
next if ( scalar @$Q > $CONFIG->{url_limit} );
if ( $result == 0 ) { # page should be parsed
if ( $CONFIG->{source_callback} != 0
&& ref( $CONFIG->{source_callback} ) eq 'CODE' )
{
&{ $CONFIG->{source_callback} }($C);
}
html_find_tags( \$RESP->{whisker}->{data},
\&_crawl_extract_links_test, 0, $C, \%_crawl_linktags );
$C->{parsed_page_count}++;
}
push @$URLS, $RESP->{location} if ( $result == 3 );
foreach $T (@$URLS) {
$T =~ tr/\0\r\n//d;
next if ( length($T) == 0 );
next if ( $T =~ /^#/i ); # fragment
push @{ $C->{referrers}->{$T} }, $ST[2]
if ( $CONFIG->{save_referrers} > 0 );
if ( $T =~ /^([a-zA-Z0-9]*):/
&& lc($1) ne 'http'
&& lc($1) ne 'https' )
{
push @{ $C->{non_http}->{$T} }, $ST[2]
if ( $CONFIG->{save_non_http} > 0 );
next;
}
if ( substr( $T, 0, 2 ) eq '//' && $CONFIG->{netloc_bug} > 0 ) {
if ( $REQ->{whisker}->{ssl} > 0 ) { $T = 'https:' . $T; }
else { $T = 'http:' . $T; }
}
if ( $CONFIG->{callback} != 0 ) {
next if &{ $CONFIG->{callback} }( $T, $C );
}
$T = uri_absolute( $T, $ST[4], $CONFIG->{normalize_uri} );
@v = uri_split($T);
if ( ( defined $v[2] && $v[2] ne $ST[0] )
|| ( $v[3] > 0 && $v[3] != $ST[1] ) )
{
$C->{offsites}->{ uri_join(@v) }++
if ( $CONFIG->{save_offsites} > 0 );
next;
}
if ( $v[0] =~ /\.([a-z0-9]+)$/i ) {
if ( defined $CONFIG->{skip_ext}->{ lc($1) } ) {
$TRACK->{ $v[0] } = '?'
if ( $CONFIG->{save_skipped} > 0 );
next;
}
}
if ( defined $v[4] && $CONFIG->{use_params} > 0 ) {
$TRACK->{ $v[0] } = '?'
if ( $CONFIG->{params_double_record} > 0
&& !defined $TRACK->{ $v[0] } );
$v[0] = $v[0] . '?' . $v[4];
}
next
if ( defined $TRACK->{ $v[0] } )
; # we've processed this already
push @$Q, [ $ST[0], $ST[1], $v[0], $ST[3] + 1, '', $ST[2] ];
} # foreach
@$URLS = (); # reset for next round
} # while
return $COUNT;
} # end sub crawl
sub _crawl_extract_links_test {
my ( $TAG, $hr, $dr, $start, $len, $OBJ ) = ( lc(shift), @_ );
return undef if ( !scalar %$hr ); # fastpath quickie
my $t = $_crawl_linktags{$TAG};
while ( my ( $key, $val ) = each %$hr ) { # normalize element values
$$hr{ lc($key) } = $val;
}
if ( $TAG eq 'meta'
&& defined $$hr{'http-equiv'}
&& $$hr{'http-equiv'} eq 'refresh'
&& defined $$hr{'content'}
&& $$hr{'content'} =~ m/url=(.+)/i )
{
push( @{ $OBJ->{urls} }, $1 );
}
elsif ( ref($t) ) {
foreach (@$t) {
push( @{ $OBJ->{urls} }, $$hr{$_} ) if ( defined $$hr{$_} );
}
}
else {
push( @{ $OBJ->{urls} }, $$hr{$t} ) if ( defined $$hr{$t} );
}
if ( $TAG eq 'form' && defined $$hr{action} ) {
my $u = $OBJ->{response}->{whisker}->{uri};
$OBJ->{forms}->{ uri_absolute( $$hr{action}, $u, 1 ) }++;
}
return undef;
}
sub _crawl_do_request_ex {
my ( $hrin, $hrout, $OBJ ) = @_;
my $ret;
$ret = http_do_request( $hrin, $hrout );
return ( 2, $ret )
if ( $ret == 2 ); # if there was connection error, do not continue
if ( $ret == 0 ) { # successful request
if ( $$hrout{whisker}->{code} < 308
&& $$hrout{whisker}->{code} > 300 )
{
if ( $OBJ->{config}->{follow_moves} > 0 ) {
return ( 3, $ret )
if ( defined $$hrout{location}
&& !ref( $$hrout{location} ) );
}
return ( 5, $ret ); # not avail
}
if ( $$hrout{whisker}->{code} == 200 ) {
if ( defined $$hrout{'content-type'}
&& $$hrout{'content-type'} !~ /^text\/htm/i )
{
return ( 4, $ret );
}
}
}
return ( -1, $ret ); # fallthrough
}
sub _crawl_do_request {
my ( $hrin, $hrout, $OBJ ) = @_;
my ( $cret, $lwret );
if ( $OBJ->{config}->{do_head} && $$hrin{whisker}->{method} ne 'HEAD' )
{
my $save = $$hrin{whisker}->{method};
$$hrin{whisker}->{method} = 'HEAD';
( $cret, $lwret ) = _crawl_do_request_ex( $hrin, $hrout, $OBJ );
$$hrin{whisker}->{method} = $save;
return $cret if ( $cret > 0 );
if ( $lwret == 0 ) { # successful request
if ( $$hrout{whisker}->{code} == 501 ) { # HEAD not allowed
$OBJ->{config}->{do_head} = 0; # no more HEAD requests
}
}
}
( $cret, $lwret ) = _crawl_do_request_ex( $hrin, $hrout, $OBJ );
return $lwret if ( $cret < 0 );
return $cret;
}
} # CRAWL_CONTAINER
sub dump {
my %what = @_;
my ( $final, $k, $v ) = ('');
while ( ( $k, $v ) = each %what ) {
return undef if ( ref($k) || !ref($v) );
$final .= "\$$k = " . _dump( 1, $v, 1 );
$final =~ s#,\n$##;
$final .= ";\n";
}
return $final;
}
sub dump_writefile {
my $file = shift;
my $output = &dump(@_);
return 1 if ( !open( OUT, ">$file" ) || !defined $output );
binmode(OUT);
print OUT $output;
close(OUT);
}
sub _dump { # dereference and dump an element
my ( $t, $ref, $depth ) = @_;
my ( $out, $k, $v ) = ('');
$depth ||= 1;
return 'undef' if ( $depth > 128 );
if ( !defined $ref ) {
return 'undef';
}
elsif ( ref($ref) eq 'HASH' ) {
$out .= "{\n";
while ( ( $k, $v ) = each %$ref ) {
$out .= "\t" x $t;
$out .= _dumpd($k) . ' => ';
if ( ref($v) ) { $out .= _dump( $t + 1, $v, $depth + 1 ); }
else { $out .= _dumpd($v); }
$out .= ",\n" unless ( substr( $out, -2, 2 ) eq ",\n" );
}
$out =~ s#,\n$#\n#;
$out .= "\t" x ( $t - 1 );
$out .= "},\n";
}
elsif ( ref($ref) eq 'ARRAY' ) {
$out .= "[";
if ( ~~@$ref ) {
$out .= "\n";
foreach $v (@$ref) {
$out .= "\t" x $t;
if ( ref($v) ) { $out .= _dump( $t + 1, $v, $depth + 1 ); }
else { $out .= _dumpd($v); }
$out .= ",\n" unless ( substr( $out, -2, 2 ) eq ",\n" );
}
$out =~ s#,\n$#\n#;
$out .= "\t" x ( $t - 1 );
}
$out .= "],\n";
}
elsif ( ref($ref) eq 'SCALAR' ) {
$out .= _dumpd($$ref);
}
elsif ( ref($ref) eq 'REF' ) {
$out .= _dump( $t, $$ref, $depth + 1 );
}
elsif ( ref($ref) ) { # unknown/unsupported ref
$out .= "undef";
}
else { # normal scalar
$out .= _dumpd($ref);
}
return $out;
}
sub _dumpd { # escape a scalar string
my $v = shift;
return 'undef' if ( !defined $v );
return "''" if ( $v eq '' );
return "$v" if ( $v eq '0' || $v !~ tr/0-9//c && $v !~ m#^0+# );
if ( $v !~ tr/ !-~//c ) {
$v =~ s/(['\\])/\\$1/g;
return "'$v'";
}
$v =~ s#\\#\\\\#g;
$v =~ s#"#\\"#g;
$v =~ s#\r#\\r#g;
$v =~ s#\n#\\n#g;
$v =~ s#\t#\\t#g;
$v =~ s#\$#\\\$#g;
$v =~ s#([^!-~ ])#sprintf('\\x%02x',ord($1))#eg;
return "\"$v\"";
}
{ # package variables
my $MIMEBASE64_TRYLOADING = 1;
sub encode_base64 {
if ($MIMEBASE64_TRYLOADING) {
eval "require MIME::Base64";
$MIMEBASE64_TRYLOADING = 0;
}
goto &MIME::Base64::encode_base64 if ($MIME::Base64::VERSION);
my $res = "";
my $eol = $_[1];
$eol = "\n" unless defined $eol;
pos( $_[0] ) = 0;
while ( $_[0] =~ /(.{1,45})/gs ) {
$res .= substr( pack( 'u', $1 ), 1 );
chop($res);
}
$res =~ tr|` -_|AA-Za-z0-9+/|;
my $padding = ( 3 - length( $_[0] ) % 3 ) % 3;
$res =~ s/.{$padding}$/'=' x $padding/e if $padding;
if ( length $eol ) {
$res =~ s/(.{1,76})/$1$eol/g;
}
$res;
}
sub decode_base64 {
if ($MIMEBASE64_TRYLOADING) {
eval "require MIME::Base64";
$MIMEBASE64_TRYLOADING = 0;
}
goto &MIME::Base64::decode_base64 if ($MIME::Base64::VERSION);
my $str = shift;
my $res = "";
$str =~ tr|A-Za-z0-9+=/||cd;
$str =~ s/=+$//; # remove padding
$str =~ tr|A-Za-z0-9+/| -_|; # convert to uuencoded format
while ( $str =~ /(.{1,60})/gs ) {
my $len = chr( 32 + length($1) * 3 / 4 ); # compute length byte
$res .= unpack( "u", $len . $1 ); # uudecode
}
$res;
}
} # end package variables
sub encode_uri_hex { # normal hex encoding
my $str = shift;
$str =~ s/([^\/])/sprintf("%%%02x",ord($1))/ge;
return $str;
}
sub encode_uri_randomhex { # random normal hex encoding
my @T = split( //, shift );
my $s;
foreach (@T) {
if (m#[;=:&@\?]#) {
$s .= $_;
next;
}
if ( ( rand() * 2 ) % 2 == 1 ) { $s .= sprintf( "%%%02x", ord($_) ); }
else { $s .= $_; }
}
return $s;
}
sub encode_uri_randomcase {
my ( $x, $uri ) = ( '', shift );
return $uri if ( $uri !~ tr/a-zA-Z// ); # fast-path
my @T = split( //, $uri );
for ( $x = 0 ; $x < ( scalar @T ) ; $x++ ) {
if ( ( rand() * 2 ) % 2 == 1 ) {
$T[$x] =~ tr/A-Za-z/a-zA-Z/;
}
}
return join( '', @T );
}
sub encode_unicode {
my ( $c, $r ) = ( '', '' );
foreach $c ( split( //, shift ) ) {
$r .= pack( "v", ord($c) );
}
return $r;
}
sub decode_unicode {
my $str = $_[0];
return $str if ( $str !~ tr/!-~//c ); # fastpath
my ( $lead, $count, $idx );
my $out = '';
my $len = length($str);
my ( $ptr, $no, $nu ) = ( 0, 0, 0 );
while ( $ptr < $len ) {
my $c = substr( $str, $ptr, 1 );
if ( ord($c) >= 0xc0 && ord($c) <= 0xfd ) {
$count = 0;
$c = ord($c) << 1;
while ( ( $c & 0x80 ) == 0x80 ) {
$c <<= 1;
last if ( $count++ == 4 );
}
$c = ( $c & 0xff );
for ( $idx = 1 ; $idx < $count ; $idx++ ) {
my $o = ord( substr( $str, $ptr + $idx, 1 ) );
$no = 1 if ( $o != 0x80 );
$nu = 1 if ( $o < 0x80 || $o > 0xbf );
}
my $o = ord( substr( $str, $ptr + $idx, 1 ) );
$nu = 1 if ( $o < 0x80 || $o > 0xbf );
if ($nu) {
$out .= substr( $str, $ptr++, 1 );
}
else {
if ($no) {
$out .= "\xff"; # generic replacement char
}
else {
my $prior =
ord( substr( $str, $ptr + $count - 1, 1 ) ) << 6;
$out .= pack( "C",
(( ord( substr( $str, $ptr + $count, 1 ) ) & 0x7f ) +
$prior ) & 255 );
}
$ptr += $count + 1;
}
$no = $nu = 0;
}
else {
$out .= $c;
$ptr++;
}
}
return $out;
}
sub encode_anti_ids {
my ( $rhin, $modes ) = ( shift, shift );
my ( @T, $x, $c, $s, $y );
my $ENCODED = 0;
my $W = $$rhin{'whisker'};
return if ( !( defined $rhin && ref($rhin) ) );
$$rhin{'whisker'}->{'uri_orig'} = $$rhin{'whisker'}->{'uri'};
if ( $modes =~ /4/ ) {
$s = '';
if ( $$W{'uri'} =~ m#^/# ) {
$y = &utils_randstr;
$s .= $y while ( length($s) < 512 );
$$W{'uri'} = "/$s/.." . $$W{'uri'};
}
}
if ( $modes =~ /7/ ) {
$$W{'uri'} = encode_uri_randomcase( $$W{'uri'} );
}
if ( $modes =~ /2/ ) {
$$W{'uri'} =~ s#/#/./#g;
}
if ( $modes =~ /8/ ) {
$$W{'uri'} =~ s#/#\\#g;
$$W{'uri'} =~ s#^\\#/#;
$$W{'uri'} =~ s#^([a-zA-Z0-9_]+):\\#$1://#;
$$W{'uri'} =~ s#\\$#/#;
}
if ( $modes =~ /1/ ) {
if ( $ENCODED == 0 ) {
$$W{'uri'} = encode_uri_randomhex( $$W{'uri'} );
$ENCODED = 1;
}
}
if ( $modes =~ /5/ ) {
( $s, $y ) = ( &utils_randstr, &utils_randstr );
$$W{'uri'} = "/$s.html%3F$y=/../$$W{'uri'}";
}
if ( $modes =~ /3/ ) {
$s = &utils_randstr;
$$W{'uri'} = "/%20HTTP/1.1%0d%0aAccept%3a%20$s/../..$$W{'uri'}";
}
if ( $modes =~ /6/ ) {
$$W{'http_space1'} = "\t";
}
if ( $modes =~ /A/i ) {
$$W{'http_space1'} = $$W{'http_space2'} = "\x0d";
}
if ( $modes =~ /B/i ) {
$$W{'http_space1'} = $$W{'http_space2'} = "\x0b";
}
}
%_forms_ELEMENTS = (
'form' => 1,
'input' => 1,
'textarea' => 1,
'button' => 1,
'select' => 1,
'option' => 1,
'/select' => 1
);
sub forms_read {
my $dr = shift;
return undef if ( !ref($dr) || length($$dr) == 0 );
my $A = [ {}, [] ];
html_find_tags( $dr, \&_forms_parse_callback, 0, $A, \%_forms_ELEMENTS );
if ( scalar %{ $A->[0] } ) {
push( @{ $A->[1] }, $A->[0] );
}
return $A->[1];
}
sub forms_write {
my $hr = shift;
return undef if ( !ref($hr) || !( scalar %$hr ) );
return undef if ( !defined $$hr{"\0"} );
my $t = '<form name="' . $$hr{"\0"}->[0] . '" method="';
$t .= $$hr{"\0"}->[1] . '" action="' . $$hr{"\0"}->[2] . '"';
if ( defined $$hr{"\0"}->[3] ) {
$t .= ' ' . join( ' ', @{ $$hr{"\0"}->[3] } );
}
$t .= ">\n";
my ( $name, $ar );
while ( ( $name, $ar ) = each(%$hr) ) {
next if ( $name eq "\0" );
next if ( $name eq '' && $ar->[0]->[0] eq '' );
foreach $a (@$ar) {
my $P = '';
$P = ' ' . join( ' ', @{ $$a[2] } ) if ( defined $$a[2] );
$t .= "\t";
if ( $$a[0] eq 'textarea' ) {
$t .= "<textarea name=\"$name\"$P>$$a[1]";
$t .= "</textarea>\n";
}
elsif ( $$a[0] =~ m/^input-(.+)$/ ) {
$t .= "<input type=\"$1\" name=\"$name\" ";
$t .= "value=\"$$a[1]\"$P>\n";
}
elsif ( $$a[0] eq 'option' ) {
$t .= "\t<option value=\"$$a[1]\"$P>$$a[1]\n";
}
elsif ( $$a[0] eq 'select' ) {
$t .= "<select name=\"$name\"$P>\n";
}
elsif ( $$a[0] eq '/select' ) {
$t .= "</select$P>\n";
}
else { # button
$t .= "<button name=\"$name\" value=\"$$a[1]\">\n";
}
}
}
$t .= "</form>\n";
return $t;
}
{ # these are 'private' static variables for &_forms_parse_html
my $CURRENT_SELECT = undef;
my $UNKNOWNS = 0;
sub _forms_parse_callback {
my ( $TAG, $hr, $dr, $start, $len, $ar ) = ( lc(shift), @_ );
my ( $saveparam, $parr, $key ) = ( 0, undef, '' );
my $_forms_CURRENT = $ar->[0];
my $_forms_FOUND = $ar->[1];
if ( scalar %$hr ) {
while ( my ( $key, $val ) = each %$hr ) {
if ( $key =~ tr/A-Z// ) {
delete $$hr{$key};
if ( defined $val ) { $$hr{ lc($key) } = $val; }
else { $$hr{ lc($key) } = undef; }
}
}
}
if ( $TAG eq 'form' ) {
if ( scalar %$_forms_CURRENT ) { # save last form
push( @$_forms_FOUND, $_forms_CURRENT );
$ar->[0] = {};
$_forms_CURRENT = $ar->[0];
}
$_forms_CURRENT->{"\0"} =
[ $$hr{name}, $$hr{method}, $$hr{action}, [] ];
delete $$hr{'name'};
delete $$hr{'method'};
delete $$hr{'action'};
$key = "\0";
$UNKNOWNS = 0;
}
elsif ( $TAG eq 'input' ) {
$$hr{type} = 'text' if ( !defined $$hr{type} );
$$hr{name} = 'unknown' . $UNKNOWNS++ if ( !defined $$hr{name} );
$$hr{value} = undef if ( !defined $$hr{value} );
$key = $$hr{name};
push @{ $_forms_CURRENT->{$key} },
[ 'input-' . $$hr{type}, $$hr{value}, [] ];
delete $$hr{'name'};
delete $$hr{'type'};
delete $$hr{'value'};
}
elsif ( $TAG eq 'select' ) {
$$hr{name} = 'unknown' . $UNKNOWNS++ if ( !defined $$hr{name} );
$key = $$hr{name};
push @{ $_forms_CURRENT->{$key} }, [ 'select', undef, [] ];
$CURRENT_SELECT = $key;
delete $$hr{name};
}
elsif ( $TAG eq '/select' ) {
push @{ $_forms_CURRENT->{$CURRENT_SELECT} },
[ '/select', undef, [] ];
$CURRENT_SELECT = undef;
return undef;
}
elsif ( $TAG eq 'option' ) {
return undef if ( !defined $CURRENT_SELECT );
if ( !defined $$hr{value} ) {
my $stop = index( $$dr, '<', $start + $len );
return undef if ( $stop == -1 ); # MAJOR PUKE
$$hr{value} =
substr( $$dr, $start + $len, ( $stop - $start - $len ) );
$$hr{value} =~ tr/\r\n//d;
}
push @{ $_forms_CURRENT->{$CURRENT_SELECT} },
[ 'option', $$hr{value}, [] ];
delete $$hr{value};
}
elsif ( $TAG eq 'textarea' ) {
my $stop = $start + $len;
$$hr{value} = $$hr{'='};
delete $$hr{'='};
$$hr{name} = 'unknown' . $UNKNOWNS++ if ( !defined $$hr{name} );
$key = $$hr{name};
push @{ $_forms_CURRENT->{$key} }, [ 'textarea', $$hr{value}, [] ];
delete $$hr{'name'};