#!/usr/bin/perl
# $Id: config-test,v 1.18 1997/08/27 15:17:13 cwilson Exp $
# configuration test for majordomo
# provided with majordomo, modifications by darren stalder <torin@daft.com>
# more mods by Vince Skahan <vince@atc.boeing.com>
#
# execute this by cd to your majordomo dir, then 'wrapper config-test'
#

@requires = ( "ctime.pl",
	     "majordomo_version.pl",
	     "majordomo.pl",
	     "shlock.pl",
	     "config_parse.pl",
	      );

$registration_file = ".majordomo_registration";

$default_uid = 123;

if (!$ENV{'MAJORDOMO_CF'}) {
    print <<"STOP"

\a\aYou're attempting to run $0 the wrong way!
Let's try running it through ./wrapper instead, hmm?
STOP
    ;
    sleep 2;
    if (-x "./wrapper") {
	exec("./wrapper config-test", @ARGV);
    } else {
	print <<"dummy"
Well, shoot, you forget to run 

    make install-wrapper

as well!  Better go do that...
dummy
    ;
	exit 1;
    }
}



&header('');
&header("Config-test for Majordomo");
&header('');
print "\n\n";



&header("Obvious things:");

&header("environment variables");
foreach $e (sort keys %ENV) {
        print "   $e=$ENV{$e}\n";
}

&header("euid/egid checks");

$euid_name=getpwuid($>);
push(@egid_group_numbers,(split(' ',$) )));   # it switches groups...
foreach $groupnum (@egid_group_numbers) {
	$name = getgrgid($groupnum);
	push(@egid_names,$name);
}
print "   effective user  = $euid_name (uid $>)\n";
print "   effective group = @egid_names (gid $) )\n";

&header("uid/gid checks");

$uid_name=getpwuid($<);
push(@gid_group_numbers,(split(' ',$( )));   # it switches groups...
foreach $groupnum (@gid_group_numbers) {
	$name = getgrgid($groupnum);
	push(@gid_names,$name);
}
print "   real      user  = $uid_name (uid $<)\n";
print "   real      group = @gid_names (gid $( )\n";

if ($< == $default_uid) { 		# the default uid
    print <<"idontthinkso"
I think it's highly unlikely that you're using the default
user id of $default_uid for majordomo.  Lemme check...

idontthinkso
    ;
    $name = (getpwuid($default_uid))[0];
    if (! $name ) {
	print <<"ithoughtso"

Hah!  I thought so!  You've forgotten to use the right user id 
in the Makefile.  Make sure that W_USER and W_GROUP are set to 
the correct values in the Makefile, and run 
	make install-wrapper 
again.

ithoughtso
;#'
	exit 1;
    } else {
	print <<"wellokay"
Hmm!  The user with the uid of $default_uid is $name, so
at least the user exists.  If this isn't the majordomo user,
make sure that W_USER and W_GROUP are set to the correct values
in the Makefile, and run 
	make install-wrapper 
again.

wellokay
;#'
    }    
}

&header('');
print "\n\tNon obvious things that cause headaches:\n\n";
&header('');

$cf = $ARGV[0] || $ENV{'MAJORDOMO_CF'};

if (eval "require '$cf'") { 
    &good("'require'd $cf okay.");    
} else {
    &bad("something's wrong with $cf: $@");
}

foreach (@requires) {
    if (require $_) {
	&good("found $_ okay.");
    } else {
	&bad("failed to find $_ in \@INC");
    }
}

print "\n";

print "You're running Majordomo Version $majordomo_version.\n";

print "\n--==> Majordomo home directory is $homedir.\n";

unshift(@INC, $homedir);

&header("Include directories");
foreach (@INC) {
    print "\t$_\n";
}

&header("Home");

if (chdir($homedir)) {
    &good("changedir to $homedir succeeded.");
} else {
    &bad("changedir to $homedir failed, $!");
}
if (open(TEST, ">cftest.$$")) {
    &good("Created a mock lock file.");
    close(TEST);
    unlink("cftest.$$");
}
else {
    &bad("Couldn't create a mock lock file.\n      \$homedir ($homedir) needs to be writable.");
}

&header("temp directory");
if (! defined $TMPDIR) {
    &bad("\$TMPDIR not defined by majordomo.cf");
}
elsif (-d $TMPDIR) {
    if (open(TEST, ">$TMPDIR/cftest.$$")) {
	&good("Created a temp file in \$TMPDIR ($TMPDIR).");
	close(TEST);
	unlink("$TMPDIR/cftest.$$");
    }
    else {
	&bad("Couldn't create a file in $TMPDIR.");
    }
}
else {
    &bad("\$TMPDIR ($TMPDIR) does not exist.");
}

&header("list directory");

if (-d $listdir) {
    if (-r $listdir && -w $listdir && -x $listdir) {
	&good("list directory $listdir has good permissions.");
    } else {
	&bad("list directory $listdir has bad permissions");
    }
} else {
    print "Hmmm, list directory $listdir doesn't exist\n or isn't a directory.\n";
    print "Let me try to make it for you...\n";
    if ( mkdir( $listdir, 0777) ) {
	&good("list directory $listdir created.\n");
    } else {
	&bad("Couldn't create $listdir, $!");
    }
}

&header("log");

if ( ! -e $log ) {
    print "Logfile $log didn't exist, trying to create...\n ";
    if (open(A, ">$log") && close(A) ) { # sesame
	print "okay, now chmod'ing..\n";
	chmod (0664, $log) || &bad( "chmod on $log failed, $!");
    } else {
	&bad("Couldn't create logfile $log, $!\n");
    }
}

if ( -f $log && -r $log && -w $log) {
    &good("logfile $log exists and is writeable.");
} else {
    &bad("logfile $log exists, but is not writeable or isn't a file.");
}

&header ("Mailers");
if ($mailer) {
    print "You have defined a mailer for delivery.\n";
    if ($mailer =~ /sendmail.*\s-t/i) {
	print "Whoa!  You have given the \"-t\" option to sendmail.  This can cause mail\n";
	print "loops when used for outbound delivery.\n";
	$BAD++;
    }
    ($x = $mailer) =~ s/\s.*$//;  # Remove everything after and including
                                  # the first space
}
elsif ($sendmail_command) {
    print "You haven't defined a \$mailer to be used for delivery, but you have\n";
    print "defined \$sendmail_command.  Majordomo will use\n";
    print "$sendmail_command -f\\\$sender\n";
    print "to deliver mail to the list unless you define list-specific cases.\n";
    $x = $sendmail_command;
}
else {
    print "You have defined neither \$mailer, nor \$sendmail_command.\n";
    print "Majordomo will use\n";
    print "/usr/lib/sendmail -f\\\$sender\n";
    print "to deliver mail to the list.\n";
    $x = "/usr/lib/sendmail";
}
    
print "Attempting to verify that this is a valid mailer...";
if ( -x $x ) {
    print "looks okay.\n";
} else {
    print "nope, $x is not executable\n";
    $BAD++;
}

if ($bounce_mailer) {
    print "You have defined a mailer for delivering administrative messages.\n";
    ($x = $mailer) =~ s/\s.*$//;  # Remove everything after and including
                                  # the first space
}
elsif ($sendmail_command) {
    print "You haven't defined a \$bounce_mailer to be used for delivering\n";
    print "administrative messages, but you have defined \$sendmail_command.\n";
    print "Majordomo will use\n";
    print "$sendmail_command -f\\\$sender -t\n";
    print "to deliver administrative mail.\n";
    $x = $sendmail_command;
}
else {
    print "You have defined neither \$mailer, nor \$sendmail_command.\n";
    print "Majordomo will use\n";
    print "/usr/lib/sendmail -f\\\$sender -t\n";
    print "to deliver administrative mail.\n";
    $x = "/usr/lib/sendmail";
}
    
print "Attempting to verify that this is a valid mailer...";
if ( -x $x ) {
    print "looks okay.\n";
} else {
    print "nope, $x is not executable\n";
    $BAD++;
}


&header("Checking majordomo.cf");

print "Checking to see if there are new variables that should be in\n";
print "your majordomo.cf file...";

open($cf, $cf) || &bad("Couldn't open $cf for reading, $!");
open(S, 'sample.cf') || &bad("Couldn't open sample.cf for reading, $!");

while (<S>) {
    next unless /^\s*(\$\w+(('|::)\w+)*)/;
    $config{$1} = 2;
}

while (<$cf>) {
    next unless /^\s*(\$\w+(('|::)\w+)*)/;
    $config{$1} = 1 unless defined $config{$1}; # Keeps -w happy
    $config{$1} |= 1;
}

close (S);
close $cf;

# $config{whatever} == 1 if only in their majordomo.cf,
#	== 2 if only in sample.cf, 
#	== 3 if in both.
#

foreach (sort keys %config) {
    push (@new, $_) if $config{$_} == 2;
    push (@unknown, $_) if $config{$_} == 1;
}

if ($#new >= 0) {
    print "\nNew configuration variables (see sample.cf):\n";
    foreach (@new) { print "\t$_\n"; }
}

if ($#unknown >= 0) {
    print "\nUnknown configuration variables in existing majordomo.cf:\n";
    foreach (@unknown) { print "\t$_\n"; }
}

if ($#new == -1 && $#unknown == -1) {
    print "Nope, none that I see.\n";
}

print "\nHave you configured where Majordomo is?\n";
print "\t\$whereami is $whereami\n";
if ($whereami eq "example.com") {
    &bad("\$whereami hasn't been changed yet!");
} else {
    &good("yup!");
}

&header("end of tests");

print "\n\n";

if ($BAD) {
    print "$BAD bad ", $BAD == 1 ? "thing was" : "things were", " found.\n";
    print "Please fix before attempting to run Majordomo.\n";
} else {
    print <<"ZOT";
Nothing bad found!  Majordomo _should_ work correctly.

If it doesn't, check your configuration file 
	($cf) 
closely, and if it still looks okay, consider asking the majordomo-users
mailing list at "majordomo-users\@greatcircle.com" for assistance.  Be sure
and fully specify what your problems are, and what type of machine (and
operating system) you are using.

Enjoy!

ZOT

#'

    if ( ! -e $registration_file ||
	`cat $registration_file` ne $majordomo_version) {
	print <<"ZOT";
I see you haven't registered this version of Majordomo.
By registering, you will be notified of patches and further releases
of Majordomo.  Shall I send email to majordomo-registration\@greatcircle.com
to register this version?  (I'll cc $whoami_owner)
ZOT

#'
    print "[yes] ";
	if ( <> !~ /n/i) {
	    open(RF,">$registration_file") 
		|| die "couldn't create $registration_file, $!";
	    print RF $majordomo_version;
	    close RF;

	    $sendmail_command = "/usr/lib/sendmail"
		unless defined $sendmail_command;
	    $bounce_mailer = "$sendmail_command -f\$sender -t"
		unless defined $bounce_mailer;
	    &set_abort_addr($whoami_owner);
	    &set_mail_from($whoami); $x = $whoami; # Keeps -w happy
	    &set_mail_sender($whoami_owner);
	    &set_mailer($bounce_mailer);

	    &sendmail(REG, "majordomo-registration\@greatcircle.com,$whoami_owner", 
		      "Majordomo Registration");
	    print REG "Majordomo Version: $majordomo_version\n";
	    print REG "Perl version $]\n";
	    print REG "Majordomo Owner:  $whoami_owner\n";
	    print REG "Uname: " . `uname -a`;
	    close REG;
	} else {
	    print "Ooooh, like to live dangerously, eh?!\n\n";
	}	
    }	

}    


######################################################################
sub good { print "Good: $_[0]\n"; }

sub bad { print "BAD:  $_[0]\n"; $BAD++;}

sub header {
    if (length $_[0]) {
	print '-' x ( ( 60 - (length($_[0]) + 2) ) / 2),
	" $_[0] ", '-' x ( ( 60 - (length($_[0]) + 2) ) / 2), "\n";
    } else {
	print '-' x 60, "\n";
    }
}

#
# that's all folks