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# gpg2keys_mailto - talk to a email keyserver
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# Copyright (C) 2001, 2002 Free Software Foundation, Inc.
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# This file is part of GnuPG.
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# GnuPG is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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# GnuPG is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, see <http://www.gnu.org/licenses/>.
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$Getopt::Std::STANDARD_HELP_VERSION=1;
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$sendmail="@SENDMAIL@ -t";
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sub VERSION_MESSAGE ()
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print STDOUT "gpg2keys_mailto (GnuPG) @VERSION@\n";
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--help Print this help
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--version Print the version
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-o FILE Write output to FILE
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open(STDOUT,">$opt_o") || die "Can't open output file $opt_o\n";
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open(STDIN,$ARGV[0]) || die "Can't open input file $ARGV[0]\n";
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($login,$name)=(getpwuid($<))[0,6];
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$from="$name <$login>";
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elsif($1=~/^no-verbose$/i)
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$program="(unknown)" if(!defined($program));
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if(!defined($address))
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print STDERR "gpgkeys: no address provided\n";
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($address,$args)=split(/\?/,$address);
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@pairs = split(/&/, $args);
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foreach $pair (@pairs)
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($hdr, $val) = split(/=/, $pair);
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$hdr =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
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$val =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
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# we only handle "from" right now
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print "OPTION OUTOFBAND\n\n";
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# Email keyservers get and search the same way
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if($command=~/get/i || $command=~/search/i)
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if($command=~/search/i)
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open(MAIL,"|$sendmail") || die "ERROR: Can't open $sendmail\n";
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print MAIL "From: $from\n";
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print MAIL "To: $address\n";
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# mail keyservers don't like long-form keyids
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if(substr($key,0,2) eq "0x")
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$key=substr($key,-8);
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print MAIL "Subject: GET 0x$key\n\n";
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print MAIL "Subject: GET $key\n\n";
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print MAIL "GnuPG $program email keyserver request\n";
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# Tell GnuPG not to expect a key
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print "KEY $key OUTOFBAND\n";
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print STDERR "gpgkeys: key $key requested from $address\n";
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if($command=~/send/i)
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open(MAIL,"|$sendmail") || die "ERROR: Can't open $sendmail\n";
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print MAIL "From: $name <$login>\n";
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print MAIL "To: $address\n";
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print MAIL "Subject: ADD\n\n";
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if(/^KEY (\S+) BEGIN$/)
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print STDERR "gpgkeys: key $key sent to $address\n";