/usr/sbin/lighty-enable-mod is in lighttpd 1.4.45-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 | #!/usr/bin/perl -w
#
# Copyright (c) 2006 Krzysztof Krzyzaniak
#
# Contains changes from:
# - Tobias Gruetzmacher <tobias@portfolio16.de>
# - Arno Toell <debian@toell.net>
#
# You may distribute under the terms of either the GNU General Public
# License[1] or the Artistic License[2].
#
# [1] http://www.gnu.org/licenses/gpl.html
# [2] http://www.perl.com/pub/a/language/misc/Artistic.html
#
use strict;
use Term::ReadLine;
use File::Basename;
use File::Glob ':glob';
use File::stat;
#--- some initializations
my $confdir = "/etc/lighttpd/";
my %available = ();
my %enabled = ();
my @todo = ();
my $enabling = 1;
#--- some defaults
use constant {
EXIT_OK => 0,
EXIT_FAILURE => 1,
EXIT_NO_ACTION => 2
};
#--- first check if we enabling or disabling
if ($0 =~ /disable-mod$/) {
#--- disabling mode
$enabling = 0;
}
sub mydie {
my $reason = shift;
print($reason);
exit(EXIT_FAILURE);
}
#--- list of available modules
my @files = bsd_glob($confdir.'conf-available/*.conf');
foreach my $file (@files) {
if (basename($file) =~ /^\d+\-([\w\-\.]+)\.conf$/) {
$available{$1} = $file;
}
}
#--- list of already enabled modules
@files = bsd_glob($confdir.'conf-enabled/*.conf');
foreach my $file (@files) {
if (basename($file) =~ /^\d+\-([\w\-\.]+)\.conf$/) {
$enabled{$1} = $file;
}
}
unless (defined($ARGV[0])) {
print "Disabled modules: ";
foreach (sort(keys %available)) {
if (!defined($enabled{$_})) {
print qq{$_ };
}
}
print "\n";
print "Enabled modules: ";
foreach (sort(keys %enabled)) {
print qq{$_ };
}
print "\n";
my $prompt = $enabling ? 'Enable module: ' : 'Disable module: ';
my $term = new Term::ReadLine $prompt;
my $OUT = $term->OUT || \*STDOUT;
my $var = lc($term->readline($prompt));
@todo = split(/ /, $var);
}
else {
@todo = @ARGV;
}
my $exit_status = EXIT_OK;
#--- activate (link) or deactivate (remove) module
foreach my $do (@todo) {
if (! exists($available{$do})) {
print("Ignoring unknown module: $do\n");
$exit_status = EXIT_NO_ACTION;
next;
}
if ($enabling) {
next unless defined($available{$do});
my $target = sprintf("%s/conf-enabled/%s", $confdir,basename($available{$do}));
my $source = $available{$do};
my $st = stat($target);
unless ( -f $target ) {
# scan for a dependency line
local *MOD;
open(MOD, "< $source") || mydie("can't read $source: $!");
while(my $i = <MOD>) {
if ($i =~ m/# -\*- depends: ([-\w, ]+) -\*-/) {
my @matches = split(/,\s+/, $1);
for my $module (@matches) {
if (exists $available{$module} and ! exists $enabled{$module}) {
print("Met dependency: $module\n");
push(@todo, $module);
}
elsif (exists $available{$module} and exists $enabled{$module}) {
# Do nothing
}
else
{
mydie("Unresolved dependency: $module\n");
}
}
last;
}
}
close(MOD);
if (symlink("../conf-available/" . basename($available{$do}), $target)) {
print "Enabling $do: ok\n";
}
else {
print "failure: $!\n";
$exit_status = EXIT_FAILURE;
}
}
else {
print "already enabled\n";
# Set exit status only, if no more severe problem
# occured so far
$exit_status = EXIT_NO_ACTION if $exit_status != EXIT_FAILURE;
}
}
else {
if (defined($enabled{$do})) {
print qq{Disabling $do\n};
my $target = sprintf("%s/conf-enabled/%s", $confdir,basename($enabled{$do}));
my $source = $available{$do};
# scan for a reverse dependency line
foreach my $available_module (keys %available) {
if ($available_module eq $do) {
next;
}
local *MOD;
open(MOD, "< $available{$available_module}") || mydie("can't read $available{$available_module}: $!");
while(my $i = <MOD>) {
if ($i =~ m/# -\*- depends: ([-\w, ]+) -\*-/) {
my @matches = split(/,\s+/, $1);
for my $module (@matches) {
if ($module eq $do && exists $enabled{$available_module}) {
print("Reverse dependency met: Disabling $available_module too\n");
push(@todo, $available_module);
}
}
last;
}
}
}
close(MOD);
unlink($target);
} else {
print qq{Already disabled $do\n};
$exit_status = EXIT_NO_ACTION if $exit_status != EXIT_FAILURE;
}
}
}
print "Run \"service lighttpd force-reload\" to enable changes\n";
exit($exit_status);
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