/usr/bin/pgp-fixkey is in signing-party 1.1.4-1.
This file is owned by root:root, with mode 0o755.
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# pgp-fixkey -- remove broken packets from keys
# $Id: pgp-fixkey 317 2007-05-22 08:49:56Z thijs $
#
# Copyright (c) 2004, 2005 Peter Palfrader <peter@palfrader.org>
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. 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.
# 3. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
=pod
=head1 NAME
pgp-fixkey -- remove broken packets from keys
=head1 SYNOPSIS
=over
=item B<pgp-fixkey> [I<keyid> [I<keyid> ...]]
=back
=head1 DESCRIPTION
B<pgp-fixkey> removes broken packets from keys in the GnuPG keyring that make
GnuPG spew ugly warnings. It optionally takes a list of keyids on the command
line and only cleans those keys.
=head1 OPTIONS
=over
=item I<keyid>
Use this key.
=back
=head1 FILES
=over
=item $HOME/.gnupg/pubring.gpg - default GnuPG keyring
=back
=head1 SEE ALSO
caff(1), gpg(1).
=head1 AUTHOR
Peter Palfrader <peter@palfrader.org>
=cut
use strict;
use IO::Handle;
use English;
use File::Path;
use Fcntl;
use IO::Select;
use GnuPG::Interface;
my $REVISION = '$Rev: 317 $';
my ($REVISION_NUMER) = $REVISION =~ /(\d+)/;
my $VERSION = "0.0.0.$REVISION_NUMER";
sub notice($) {
my ($line) = @_;
print STDERR "[NOTICE] $line\n";
};
sub info($) {
my ($line) = @_;
print STDERR "[INFO] $line\n";
};
sub debug($) {
my ($line) = @_;
#print STDERR "[DEBUG] $line\n";
};
sub trace($) {
my ($line) = @_;
#print STDERR "[trace] $line\n";
};
sub trace2($) {
my ($line) = @_;
#print STDERR "[trace2] $line\n";
};
sub make_gpg_fds() {
my %fds = (
stdin => IO::Handle->new(),
stdout => IO::Handle->new(),
stderr => IO::Handle->new(),
status => IO::Handle->new() );
my $handles = GnuPG::Handles->new( %fds );
return ($fds{'stdin'}, $fds{'stdout'}, $fds{'stderr'}, $fds{'status'}, $handles);
};
sub readwrite_gpg($$$$$%) {
my ($in, $inputfd, $stdoutfd, $stderrfd, $statusfd, %options) = @_;
trace("Entering readwrite_gpg.");
my ($first_line, $dummy) = split /\n/, $in;
debug("readwrite_gpg sends ".(defined $first_line ? $first_line : "<nothing>"));
local $INPUT_RECORD_SEPARATOR = undef;
my $sout = IO::Select->new();
my $sin = IO::Select->new();
my $offset = 0;
trace("input is $inputfd; output is $stdoutfd; err is $stderrfd; status is ".(defined $statusfd ? $statusfd : 'undef').".");
$inputfd->blocking(0);
$stdoutfd->blocking(0);
$statusfd->blocking(0) if defined $statusfd;
$stderrfd->blocking(0);
$sout->add($stdoutfd);
$sout->add($stderrfd);
$sout->add($statusfd) if defined $statusfd;
$sin->add($inputfd);
my ($stdout, $stderr, $status) = ("", "", "");
my $exitwhenstatusmatches = $options{'exitwhenstatusmatches'};
trace("doing stuff until we find $exitwhenstatusmatches") if defined $exitwhenstatusmatches;
my $readwrote_stuff_this_time = 0;
my $do_not_wait_on_select = 0;
my ($readyr, $readyw, $written);
while ($sout->count() > 0 || (defined($sin) && ($sin->count() > 0))) {
if (defined $exitwhenstatusmatches) {
if ($status =~ /$exitwhenstatusmatches/m) {
trace("readwrite_gpg found match on $exitwhenstatusmatches");
if ($readwrote_stuff_this_time) {
trace("read/write some more\n");
$do_not_wait_on_select = 1;
} else {
trace("that's it in our while loop.\n");
last;
}
};
};
$readwrote_stuff_this_time = 0;
trace("select waiting for ".($sout->count())." fds.");
($readyr, $readyw, undef) = IO::Select::select($sout, $sin, undef, $do_not_wait_on_select ? 0 : 1);
trace("ready: write: ".(defined $readyw ? scalar @$readyw : 0 )."; read: ".(defined $readyr ? scalar @$readyr : 0));
for my $wfd (@$readyw) {
$readwrote_stuff_this_time = 1;
if (length($in) != $offset) {
trace("writing to $wfd.");
$written = $wfd->syswrite($in, length($in) - $offset, $offset);
$offset += $written;
};
if ($offset == length($in)) {
trace("writing to $wfd done.");
unless ($options{'nocloseinput'}) {
close $wfd;
trace("$wfd closed.");
};
$sin->remove($wfd);
$sin = undef;
}
}
next unless (defined(@$readyr)); # Wait some more.
for my $rfd (@$readyr) {
$readwrote_stuff_this_time = 1;
if ($rfd->eof) {
trace("reading from $rfd done.");
$sout->remove($rfd);
close($rfd);
next;
}
trace("reading from $rfd.");
if ($rfd == $stdoutfd) {
$stdout .= <$rfd>;
trace2("stdout is now $stdout\n================");
next;
}
if (defined $statusfd && $rfd == $statusfd) {
$status .= <$rfd>;
trace2("status is now $status\n================");
next;
}
if ($rfd == $stderrfd) {
$stderr .= <$rfd>;
trace2("stderr is now $stderr\n================");
next;
}
}
}
trace("readwrite_gpg done.");
return ($stdout, $stderr, $status);
};
my $KEYEDIT_PROMPT = '^\[GNUPG:\] GET_LINE keyedit.prompt';
my $KEYEDIT_DELUID_PROMPT = '^\[GNUPG:\] GET_BOOL keyedit.remove.uid.okay';
my $KEYEDIT_DELSIG_PROMPT = '^\[GNUPG:\] GET_BOOL keyedit.delsig';
my $KEYEDIT_KEYEDIT_OR_DELSIG_PROMPT = '^\[GNUPG:\] (GET_BOOL keyedit.delsig|GET_LINE keyedit.prompt)';
my $KEYEDIT_DELSUBKEY_PROMPT = '^\[GNUPG:\] GET_BOOL keyedit.remove.subkey';
sub usage() {
print STDERR "pgp-fixkey $VERSION - (c) 2004, 2005 Peter Palfrader\n";
print STDERR "Usage: $PROGRAM_NAME [<keyid> [<keyid> ...]]\n";
exit 1;
};
my @KEYIDS;
for my $keyid (@ARGV) {
$keyid =~ s/^0x//i;
unless ($keyid =~ /^[A-Za-z0-9]{8}([A-Za-z0-9]{8})?$/) {
print STDERR "$keyid is not a keyid.\n";
usage();
};
push @KEYIDS, uc($keyid);
};
# find a list of all interesting keys.
if (scalar @KEYIDS == 0) {
my $gpg = GnuPG::Interface->new();
$gpg->options->meta_interactive( 0 );
my ($inputfd, $stdoutfd, $stderrfd, $statusfd, $handles) = make_gpg_fds();
$gpg->options->hash_init( 'extra_args' => [ '--with-colons', '--fast-list-mode', '--fixed-list-mode' ] );
my $pid = $gpg->list_sigs(handles => $handles);
my ($stdout, $stderr, $status) = readwrite_gpg('', $inputfd, $stdoutfd, $stderrfd, $statusfd);
waitpid $pid, 0;
if ($stdout eq '') {
die ("No data from gpg for list-sigs\n");
};
my $thiskey = undef;
for my $line (split /\n/, $stdout) {
debug("Checking line $line");
my ($type, undef, undef, undef, $keyid, $created, undef, undef, undef, undef) = split /:/, $line;
if ($type eq 'pub') {
$thiskey = $keyid;
debug("Found key $thiskey");
} elsif (!defined $thiskey) {
next;
} elsif ($type eq 'sig' || $type eq 'rev') {
if (($keyid eq '0' x 16) || ($created eq "") || ($created == 0)) {
push @KEYIDS, $thiskey;
info("Key $thiskey needs cleaning.");
$thiskey = undef;
};
};
};
}
KEYS:
for my $keyid (@KEYIDS) {
# get key listing
#################
my $gpg = GnuPG::Interface->new();
$gpg->options->meta_interactive( 0 );
my ($inputfd, $stdoutfd, $stderrfd, $statusfd, $handles) = make_gpg_fds();
$gpg->options->hash_init( 'extra_args' => [ '--with-colons', '--fixed-list-mode' ] );
my $pid = $gpg->list_public_keys(handles => $handles, command_args => [ $keyid ]);
my ($stdout, $stderr, $status) = readwrite_gpg('', $inputfd, $stdoutfd, $stderrfd, $statusfd);
waitpid $pid, 0;
if ($stdout eq '') {
warn ("No data from gpg for list-key $keyid\n");
next;
};
my $keyinfo = $stdout;
my @publine = grep { /^pub/ } (split /\n/, $stdout);
if ($#publine < 0) {
warn ("No public key found for $keyid.\n");
next;
}
my (undef, undef, undef, undef, $longkeyid, undef, undef, undef, undef, undef, undef, $flags) = split /:/, pop @publine;
my $can_encrypt = $flags =~ /E/;
unless (defined $longkeyid) {
warn ("Didn't find public keyid in edit dialog of key $keyid.\n");
next;
};
my @UIDS;
my $uid_number = 0;
my $this_uid_text = '';
$uid_number++;
debug("Doing key $keyid, uid $uid_number");
# prune it
##########
$gpg = GnuPG::Interface->new();
$gpg->options->hash_init(
'extra_args' => [ '--with-colons', '--fixed-list-mode', '--command-fd=0', '--no-tty' ] );
($inputfd, $stdoutfd, $stderrfd, $statusfd, $handles) = make_gpg_fds();
$pid = $gpg->wrap_call(
commands => [ '--edit' ],
command_args => [ $keyid ],
handles => $handles );
debug("Starting edit session");
($stdout, $stderr, $status) = readwrite_gpg('', $inputfd, $stdoutfd, $stderrfd, $statusfd, exitwhenstatusmatches => $KEYEDIT_PROMPT, nocloseinput => 1);
# mark all uids
###################
my $number_of_subkeys = 0;
my $i = 1;
my $have_one = 0;
my $is_uat = 0;
my $delete_some = 0;
debug("Parsing stdout output.");
for my $line (split /\n/, $stdout) {
debug("Checking line $line");
my ($type, undef, undef, undef, undef, undef, undef, undef, undef, $uidtext) = split /:/, $line;
if ($type eq 'sub') {
$number_of_subkeys++;
};
next unless ($type eq 'uid' || $type eq 'uat');
debug("line is interesting.");
debug("mark uid.");
readwrite_gpg("$i\n", $inputfd, $stdoutfd, $stderrfd, $statusfd, exitwhenstatusmatches => $KEYEDIT_PROMPT, nocloseinput => 1);
$i++;
};
debug("Parsing stdout output done.");
# delete signatures
###################
($stdout, $stderr, $status) =
readwrite_gpg("delsig\n", $inputfd, $stdoutfd, $stderrfd, $statusfd, exitwhenstatusmatches => $KEYEDIT_DELSIG_PROMPT, nocloseinput => 1);
while($status =~ /$KEYEDIT_DELSIG_PROMPT/m) {
# sig:?::17:EA2199412477CAF8:1058095214:::::13x:
my @sigline = grep { /^sig/ } (split /\n/, $stdout);
$stdout =~ s/\n/\\n/g;
notice("[sigremoval] why are there ".(scalar @sigline)." siglines in that part of the dialog!? got: $stdout") if scalar @sigline >= 2; # XXX
my $line = pop @sigline;
my $answer = "no";
if (defined $line) { # only if we found a sig here - we never remove revocation packets for instance
debug("[sigremoval] doing line $line.");
my (undef, undef, undef, undef, $signer, $created, undef, undef, undef) = split /:/, $line;
if (($signer eq '0' x 16) || ($created == 0)) {
debug("[sigremoval] not interested in that sig ($signer, created: $created).");
$answer = "yes";
};
} else {
debug("[sigremoval] no sig line here, only got: ".$stdout);
};
($stdout, $stderr, $status) =
readwrite_gpg($answer."\n", $inputfd, $stdoutfd, $stderrfd, $statusfd, exitwhenstatusmatches => $KEYEDIT_KEYEDIT_OR_DELSIG_PROMPT, nocloseinput => 1);
};
readwrite_gpg("save\n", $inputfd, $stdoutfd, $stderrfd, $statusfd);
waitpid $pid, 0;
}
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