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package Symantec::PCAnywhere::Profile::CHF; |
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use strict; |
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use warnings; |
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=head1 NAME |
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Symantec::PCAnywhere::Profile::CHF - Encodes and decodes Symantec pcAnywhere connection |
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profiles |
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=head1 SYNOPSIS |
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use Symantec::PCAnywhere::Profile::CHF; |
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# Load CHF file from file |
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my $chf = new Symantec::PCAnywhere::Profile::CHF(filename => $filename); |
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# Load CHF data directly |
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my $chf = new Symantec::PCAnywhere::Profile::CHF(data => $data); |
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my $results = $chf->get_attrs( |
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Location, |
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Password, |
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Hostname, |
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DataPort |
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); |
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while (my ($attr, $value) = each (%$results)) { |
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print "$attr\t= $value\n"; |
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} |
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# Create an empty CHF |
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my $chf = new Symantec::PCAnywhere::Profile::CHF; |
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$chf->set_attrs( |
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PhoneNumber => 7652314, |
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AreaCode => 999, |
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IPAddress => '10.10.128.99', |
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ControlPort => 5900 |
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); |
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# Print the binary CHF file |
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print $chf->encode; |
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=head1 DESCRIPTION |
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This module is responsible for decoding of a pcAnywhere .CHF file |
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that describes a remote system the client wishes to connect to. |
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CHF files seem to always be the same size (3308 bytes), which is helpful |
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for decoding. |
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See this module's base class (L) for more |
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information on the decoding mechanism. |
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=head1 VERSION |
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Version 0.06 |
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=cut |
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our $VERSION = '0.06'; |
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use warnings; |
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use base qw(Symantec::PCAnywhere::Profile); |
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use Compress::Zlib; |
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use MIME::Base64; |
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# Compressed and encoded template CHF |
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my $chf_template = uncompress(decode_base64(<<'TEMPLATE')); |
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eJz7t4qB4Q0PAwMjEBpwMzA45STmZTOAgYJzYk4OwygYBaNgRADGgXYAkQDsTq6BdsUooBPg5Q5x |
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DtD3DKDACKSUzczAxAgElDpqFIyCUTAKhhL4P9AOGGAAAOhdCT4= |
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TEMPLATE |
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my %FIELDS_CHF = ( |
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# off len type |
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# ---- --- ---- |
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ConnectionName => [ 16, 182, 0 ], |
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FilePassword => [ 280, 128, 0 ], |
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SaveSessionFile => [ 744, 128, 0 ], |
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ScriptFileName => [ 889, 128, 0 ], |
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PhoneNumber => [ 1038, 31, 0 ], |
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Location => [ 1069, 128, 0 ], |
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AreaCode => [ 1210, 40, 0 ], |
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IPAddress => [ 1324, 128, 0 ], |
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ConxType => [ 1701, 64, 0 ], |
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ConnCount => [ 1913, 1, 2 ], |
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RetrySecs => [ 1914, 1, 2 ], |
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Gateway => [ 1928, 24, 0 ], |
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Hostname => [ 1940, 128, 0 ], |
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Domain_Logname => [ 2093, 128, 0 ], |
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Password => [ 2222, 128, 0 ], |
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# TODO: Find what is missing between these |
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DenyLowerEncr => [ 3050, 1, 2 ], |
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EncrLevel => [ 3052, 1, 2 ], |
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PrivKeyContainer => [ 3053, 48, 0 ], |
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CertCommonName => [ 3103, 48, 0 ], |
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DataPort => [ 3154, 2, 3 ], |
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ControlPort => [ 3156, 2, 3 ], |
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); |
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=head1 METHODS |
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Here is the public API; see this module's base class documentation for more |
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information on the inner workings of the encoding and decoding process, as well |
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as additional useful methods. |
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=over 4 |
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=item new |
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my $chf = new Symantec::PCAnywhere::Profile::CHF; |
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my $chf = new Symantec::PCAnywhere::Profile::CHF(-filename => $filename); |
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my $chf = new Symantec::PCAnywhere::Profile::CHF(filename => $filename); |
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my $chf = new Symantec::PCAnywhere::Profile::CHF(-data => $chfdata); |
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my $chf = new Symantec::PCAnywhere::Profile::CHF(data => $chfdata); |
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The "new" constructor takes any number of arguments and sets the appropriate |
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flags internally before returning a new object. The arguments are considered as |
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a list of key-value pairs which are inserted into the object data. |
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=cut |
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sub new { |
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my $type = shift; |
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my %defaults = ( |
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fields => \%FIELDS_CHF, |
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template => $chf_template, |
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); |
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my $self = $type->SUPER::new(%defaults, @_); |
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return $self; |
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} |
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=item _decode_pca_file |
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Provided with XOR-encoded CHF data, un-obscure the whole |
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thing into the "clear" format. The return value is the same |
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length as the input string, but after XOR decoding. |
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=cut |
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143
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sub _decode_pca_file ($$) { |
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my $self = shift; |
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my $rawdata = $self->{data}; |
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my $part1 = substr($rawdata, 0, 444); |
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my $part2 = substr($rawdata, 444); |
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return $self->_rawdecode(255, 0, $part1) |
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. $self->_rawdecode(255, 0x54, $part2); |
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} |
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=item _encode_pca_file |
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Provided with XOR-unencoded CHF data, obscure the whole |
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thing into the "encrypted" format. The return value is the |
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same length as the input string, but after XOR encoding. |
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161
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=cut |
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sub _encode_pca_file ($$) { |
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my $self = shift; |
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my $rawdata = $self->{decoded}; |
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my $part1 = substr($rawdata, 0, 444); |
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my $part2 = substr($rawdata, 444); |
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return $self->_rawencode(255, 0, $part1) |
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. $self->_rawencode(255, 0x54, $part2); |
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} |
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174
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=back |
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=head1 SEE ALSO |
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178
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This module is based very heavily on the work of Stephen Friedl at |
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http://www.unixwiz.net/tools/pcainfo.htmlZ<>. |
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=head1 TO DO |
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183
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Very early in the file is a "description" field that we are not |
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quite decoding properly. |
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The "hostname" and "IP Address" fields seem to be redundant, |
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and this requires more research. |
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189
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There are still plenty of big unused fields in the .CHF file, |
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and we ought to find out what they are used for. Try looking |
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at the other protocols (ISDN, SPX, NETBIOS, etc.) |
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Based on http://www.cpan.org/modules/00modlist.long.html#ID2_GuidelinesfZ<>, |
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refactor code to pass references to lists instead of lists. |
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196
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=head1 BUGS / CAVEATS |
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They're in there somewhere. Let me know what you find. |
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200
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=head1 AUTHOR |
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202
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Darren Kulp, Ekulp@thekulp.comE, based on code from |
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Stephen J. Friedl, (http://unixwiz.net/) |
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205
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=head1 COPYRIGHT AND LICENSE |
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207
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This code is in the public domain. Contains code placed in the public domain |
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2002 by Stephen Friedl. |
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210
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"Symantec" and "pcAnywhere" are trademarks of Symantec Corp. |
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212
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=cut |
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1; |
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__END__ |