/usr/sbin/moin-mass-migrate is in python-moinmoin 1.9.7-1ubuntu2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | #!/usr/bin/perl
# based on ikiwiki-mass-rebuild, part of ikiwiki, written by Joey Hess
use warnings;
use strict;
sub supplemental_groups {
my $user=shift;
my @list;
while (my @fields=getgrent()) {
if (grep { $_ eq $user } split(' ', $fields[3])) {
push @list, $fields[2];
}
}
return @list;
}
sub samelists {
my %a=map { $_ => 1 } split(' ', shift());
my %b=map { $_ => 1 } split(' ', shift());
foreach my $i (keys %b) {
if (! exists $a{$i}) {
return 0;
}
}
foreach my $i (keys %a) {
if (! exists $b{$i}) {
return 0;
}
}
return 1;
}
sub processline {
my $user=shift;
my $url=shift;
if (! getpwnam("$user")) {
print STDERR "warning: user $user does not exist\n";
return
}
# TODO: add sanity check for $url
print "Processing moin wiki at $url as user $user ...\n";
# su is not used because it passes arguments through the shell,
# which might not be safe.
defined(my $pid = fork) or die "Can’t fork: $!";
if (! $pid) {
my ($uuid, $ugid) = (getpwnam($user))[2, 3];
my $grouplist=join(" ", $ugid, $ugid, supplemental_groups($user));
if (! samelists(($)=$grouplist), $grouplist)) {
die "failed to set egid $grouplist: $!";
}
$(=$ugid;
$<=$uuid;
$>=$uuid;
if ($< != $uuid || $> != $uuid || $( != $ugid) {
die "failed to drop permissions to $user";
}
%ENV=(
PATH => $ENV{PATH},
HOME => (getpwnam($user))[7],
);
exec("moin", "--wiki-url", $url, "migration", "data", @ARGV);
die "failed to run moin: $!";
}
waitpid($pid,0);
if ($?) {
print STDERR "Processing moin wiki at $url as user $user failed with code $?\n";
}
}
sub processlist {
my $file=shift;
my $forceuser=shift;
my $list;
open ($list, "<$file") || die "$file: $!";
while (<$list>) {
chomp;
s/^\s+//;
s/\s+$//;
next if /^#/ || ! length;
if (/^([^\s]+)\s+([^\s]+)$/) {
my $user=$1;
my $url=$2;
if (defined $forceuser && $forceuser ne $user) {
print STDERR "warning: in $file line $., attempt to set user to $user, but user forced to $forceuser. Skipping\n";
}
processline($user, $url);
# We once supported a middle config_dir value...
} elsif (/^([^\s]+)\s+([^\s]+)\s+([^\s]+)$/) {
my $user=$1;
my $url=$3;
print STDERR "\nWARNING: $file line $., deprecated 3-value format (not \"USER URL\"). Stripping middle value\n\n";
if (defined $forceuser && $forceuser ne $user) {
print STDERR "warning: in $file line $., attempt to set user to $user, but user forced to $forceuser. Skipping\n";
}
processline($user, $url);
}
elsif (/^([^\s]+)$/) {
my $user=$1;
my $home=(getpwnam($user))[7];
if (defined $home && -d $home) {
my $dotfile="$home/.moin/wikilist";
if (-e $dotfile) {
processlist($dotfile, $user);
}
}
}
}
close $list;
}
my $wikilist="/etc/moin/wikilist";
if (-e $wikilist) {
processlist($wikilist);
}
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