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#!/usr/bin/perl
# setup.pl
# This script should be run after the webmin archive is unpacked, in order
# to setup the various config files
use POSIX;
use Socket;
# Find install directory
$ENV{'LANG'} = '';
$0 =~ s/\\/\//g;
if ($0 =~ /^(.*)\//) {
chdir($1);
}
$wadir = getcwd();
$wadir =~ s/\\/\//g; # always use / separator on windows
$srcdir = $wadir;
open(VERSION, "$wadir/version") ||
&errorexit("Cannot find the Webmin install directory");
chop($ver = <VERSION>);
close(VERSION);
print "***********************************************************************\n";
print "* Welcome to the Webmin setup script, version $ver *\n";
print "***********************************************************************\n";
print "Webmin is a web-based interface that allows Unix-like operating\n";
print "systems and common Unix services to be easily administered.\n";
print "\n";
# Only root can run this
if ($< != 0) {
&errorexit("The Webmin install script must be run as root");
}
# Use the supplied destination directory, if any
if ($ARGV[0]) {
$wadir = $ARGV[0];
$wadir =~ s/\\/\//g; # always use / separator on windows
print "Installing Webmin from $srcdir to $wadir ...\n";
if (!-d $wadir) {
mkdir($wadir, 0755) || &errorexit("Failed to create $wadir");
}
else {
# Make sure dest dir is not in use
@files = grep { !/rpmsave/ } &files_in_dir($wadir);
if (@files && !-r "$wadir/setup.pl") {
&errorexit("Installation directory $wadir contains other files");
}
}
}
else {
print "Installing Webmin in $wadir ...\n"
}
# Work out perl library path
$ENV{'PERLLIB'} = $wadir;
if ($ENV{'perllib'}) {
$ENV{'PERLLIB'} .= ":".$ENV{'perllib'};
}
# Validate source directory
@allmods = map { s/\/module.info$//; $_ } glob("*/module.info");
if (!@allmods) {
&errorexit("ERROR: Failed to get module list");
}
$allmods = join(" ", @allmods);
print "\n";
chdir($wadir);
# Load package-defined variable overrides
if (-r "$srcdir/setup-pre.pl") {
require "$srcdir/setup-pre.pl";
}
# Ask for webmin config directory
print "***********************************************************************\n";
print "Webmin uses separate directories for configuration files and log files.\n";
print "Unless you want to run multiple versions of Webmin at the same time\n";
print "you can just accept the defaults.\n";
print "\n";
print "Config file directory [/etc/webmin]: ";
if ($ENV{'config_directory'}) {
$config_directory = $ENV{'config_directory'};
}
else {
chop($config_directory = <STDIN>);
}
$config_directory ||= "/etc/webmin";
$config_directory =~ s/\\/\//g;
if ($config_directory !~ /^([a-z]:)?\//i) {
&errorexit("Config directory must be an absolute path");
}
if (!-d $config_directory) {
mkdir($config_directory, 0755) ||
&errorexit("Failed to create directory $config_directory");
}
if (-r "$config_directory/config") {
print "Found existing Webmin configuration in $config_directory\n";
print "\n";
$upgrading=1
}
# We can now load the main Webmin library
$ENV{'WEBMIN_CONFIG'} = $config_directory;
$ENV{'WEBMIN_VAR'} = "/var/webmin"; # not really used
require "$wadir/web-lib.pl";
# Check if upgrading from an old version
if ($upgrading) {
print "\n";
# Get current var path
open(VAR, "$config_directory/var-path");
chop($var_dir = <VAR>);
$var_directory = $var_dir;
close(VAR);
# Force creation if non-existant
mkdir($var_dir, 0755);
# Get current perl path
$perl = &get_perl_path();
# Get old os name and version
&read_file("$config_directory/config", \%gconfig);
$os_type = $gconfig{'os_type'};
$os_version = $gconfig{'os_version'};
$real_os_type = $gconfig{'real_os_type'};
$real_os_version = $gconfig{'real_os_version'};
&get_miniserv_config(\%miniserv);
$oldwadir = $miniserv{'root'};
$path_separator = $gconfig{'os_type'} eq 'windows' ? ';' : ':';
$null_file = $gconfig{'os_type'} eq 'windows' ? "NUL" : "/dev/null";
if (!$miniserv{'inetd'}) {
# Stop old version
if ($os_type eq "windows") {
system("$config_directory/stop.bat >/dev/null 2>&1");
}
else {
system("$config_directory/stop >/dev/null 2>&1");
}
}
# Copy files to target directory
©_to_wadir();
# Update ACLs
system("$perl "."e_path("$wadir/newmods.pl")." $config_directory $allmods");
# Update miniserv.conf with new root directory and mime types file
$miniserv{'root'} = $wadir;
$miniserv{'mimetypes'} = "$wadir/mime.types";
&put_miniserv_config(\%miniserv);
# Check for third-party modules in old version
if ($wadir ne $oldwadir) {
print "Checking for third-party modules ..\n";
if ($ENV{'webmin_upgrade"'}) {
$autothird = 1;
}
system("$perl "."e_path("$wadir/thirdparty.pl")." "."e_path($wadir)." "."e_path($oldwadir)." $autothird");
print "..done\n";
print "\n";
}
# Remove old cache of module infos
unlink("$config_directory/module.infos.cache");
}
else {
# Config directory exists .. make sure it is not in use
@files = grep { !/rpmsave/ } &files_in_dir($config_directory);
if (@files && $config_directory ne "/etc/webmin") {
&errorexit("Config directory $config_directory is not empty");
}
# Ask for log directory
print "Log file directory [/var/webmin]: ";
if ($ENV{'var_dir'}) {
$var_dir = $ENV{'var_dir'};
}
else {
chop($var_dir = <STDIN>);
}
$var_dir ||= "/var/webmin";
$var_dir =~ s/\\/\//g;
$var_directory = $var_dir;
if ($var_dir !~ /^([a-z]:)?\//i) {
&errorexit("Log file directory must be an absolute path");
}
if ($var_dir eq "/" || $var_dir =~ /^[a-z]:\/$/) {
&errorexit("Log directory cannot be /");
}
if (!-d $var_dir) {
mkdir($var_dir, 0755) ||
&errorexit("Failed to create directory $var_dir");
}
print "\n";
# No need to ask where Perl is, because we already have it!
$perl = &has_command($^X) || $^X;
if (!-x $perl) {
&errorexit("Failed to find Perl at $perl");
}
if ($] < 5.002) {
&errorexit("Detected old perl version. Webmin requires perl 5.002 or better to run");
}
print "Perl seems to be installed ok\n";
print "\n";
# Ask for operating system type
print "***********************************************************************\n";
$autoos = $ENV{'autoos'} || 2;
$temp = &tempname();
$ex = system("$perl "."e_path("$srcdir/oschooser.pl")." "."e_path("$srcdir/os_list.txt")." $temp $autoos");
exit($ex) if ($ex);
&read_env_file($temp, \%osinfo);
$os_type = $osinfo{'os_type'};
$os_version = $osinfo{'os_version'};
$real_os_type = $osinfo{'real_os_type'};
$real_os_version = $osinfo{'real_os_version'};
$gconfig{'os_type'} = $os_type;
$gconfig{'os_version'} = $os_version;
$gconfig{'real_os_type'} = $real_os_type;
$gconfig{'real_os_version'} = $real_os_version;
$path_separator = $gconfig{'os_type'} eq 'windows' ? ';' : ':';
$null_file = $gconfig{'os_type'} eq 'windows' ? "NUL" : "/dev/null";
unlink($temp);
print "Operating system name: $real_os_type\n";
print "Operating system version: $real_os_version\n";
print "\n";
if ($os_type eq "windows") {
# Check Windows dependencies
if (!&has_command("process.exe")) {
&errorexit("The command process.exe must be installed to run Webmin on Windows");
}
eval "use Win32::Daemon";
if ($@) {
&errorexit("The Perl module Win32::Daemon must be installed to run Webmin on Windows");
}
}
# Ask for web server port, name and password
print "***********************************************************************\n";
print "Webmin uses its own password protected web server to provide access\n";
print "to the administration programs. The setup script needs to know :\n";
print " - What port to run the web server on. There must not be another\n";
print " web server already using this port.\n";
print " - The login name required to access the web server.\n";
print " - The password required to access the web server.\n";
print " - If the webserver should use SSL (if your system supports it).\n";
print " - Whether to start webmin at boot time.\n";
print "\n";
print "Web server port (default 10000): ";
if ($ENV{'port'}) {
$port = $ENV{'port'};
}
else {
chop($port = <STDIN>);
}
$port ||= 10000;
if ($port < 1 || $port > 65535) {
&errorexit("$port is not a valid port number");
}
socket(FOO, PF_INET, SOCK_STREAM, getprotobyname("tcp"));
setsockopt(FOO, SOL_SOCKET, SO_REUSEADDR, pack("l", 1));
bind(FOO, pack_sockaddr_in($port, INADDR_ANY)) ||
&errorexit("TCP port $port is already in use by another program");
close(FOO);
print "Login name (default admin): ";
if ($ENV{'login'}) {
$login = $ENV{'login'};
}
else {
chop($login = <STDIN>);
}
$login ||= "admin";
if ($login =~ /:/) {
&errorexit("Username contains a : character");
}
if ($login =~ /\s/) {
&errorexit("Username contains a space");
}
if ($login eq "webmin") {
&errorexit("Username 'webmin' is reserved for internal use");
}
print "Login password: ";
if ($ENV{'password'}) {
$password = $ENV{'password'};
}
elsif ($ENV{'crypt'}) {
$crypt = $ENV{'crypt'};
}
else {
chop($password = <STDIN>);
print "Password again: ";
chop($password2 = <STDIN>);
if ($password ne $password2) {
&errorexit("Passwords don't match");
}
if ($password =~ /:/) {
&errorexit("Password contains a : character");
}
}
# Ask the user if SSL should be used
if ($ENV{'ssl'} ne '') {
$ssl = $ENV{'ssl'};
}
else {
$ssl = 0;
eval "use Net::SSLeay";
if (!$@) {
print "Use SSL (y/n): ";
chop($sslyn = <STDIN>);
if ($sslyn =~ /^y/i) {
$ssl = 1;
}
}
else {
print "The Perl SSLeay library is not installed. SSL not available.\n"
}
}
# Don't use SSL if missing Net::SSLeay
if ($ssl) {
eval "use Net::SSLeay";
if ($@) {
$ssl = 0;
}
}
# Ask whether to run at boot time
if ($ENV{'atboot'}) {
$atboot = $ENV{'atboot'};
}
else {
$atboot = 0;
print "Start Webmin at boot time (y/n): ";
chop($atbootyn = <STDIN>);
if ($atbootyn =~ /^y/i) {
$atboot = 1;
}
}
$makeboot = $atboot;
# Copy files to target directory
print "***********************************************************************\n";
©_to_wadir();
# Create webserver config file
open(PERL, ">$config_directory/perl-path");
print PERL $perl,"\n";
close(PERL);
open(VAR, ">$config_directory/var-path");
print VAR $var_dir,"\n";
close(VAR);
print "Creating web server config files..";
$ufile = "$config_directory/miniserv.users";
$kfile = "$config_directory/miniserv.pem";
%miniserv = ( 'port' => $port,
'root' => $wadir,
'mimetypes' => "$wadir/mime.types",
'addtype_cgi' => 'internal/cgi',
'realm' => 'Webmin Server',
'logfile' => "$var_dir/miniserv.log",
'errorlog' => "$var_dir/miniserv.error",
'pidfile' => "$var_dir/miniserv.pid",
'logtime' => 168,
'ppath' => $ppath,
'ssl' => $ssl,
'env_WEBMIN_CONFIG' => $config_directory,
'env_WEBMIN_VAR' => $var_dir,
'atboot' => $atboot,
'logout' => "$config_directory/logout-flag",
'listen' => 10000,
'denyfile' => "\\.pl\$",
'log' => 1,
'blockhost_failures' => 5,
'blockhost_time' => 60,
'syslog' => $os_type eq 'windows' ? 0 : 1,
'userfile' => $ufile,
'keyfile' => $kfile,
'preload' => 'main=web-lib-funcs.pl',
);
if ($ENV{'allow'}) {
$miniserv{'allow'} = $ENV{'allow'};
}
if ($ENV{'session'} eq '') {
$miniserv{'session'} = $os_type eq 'windows' ? 0 : 1;
}
else {
$miniserv{'session'} = $ENV{'session'};
}
if ($os_type eq 'windows') {
$miniserv{'no_pam'} = 1;
}
elsif ($ENV{'pam'}) {
$miniserv{'pam'} = $ENV{'pam'};
}
if ($os_type eq 'windows') {
$miniserv{'nofork'} = 1;
$miniserv{'restartflag'} = "$var_dir/restart.flag";
$miniserv{'reloadflag'} = "$var_dir/reload.flag";
$miniserv{'forkcgis'} = 1; # Avoid memory leaks
}
&put_miniserv_config(\%miniserv);
# Test MD5 password encryption
if (&unix_crypt("test", "\\$1\\$A9wB3O18\\$zaZgqrEmb9VNltWTL454R/") eq "\\$1\\$A9wB3O18\\$zaZgqrEmb9VNltWTL454R/") {
$md5pass = 1;
}
# Create users file
open(UFILE, ">$ufile");
if ($crypt) {
print UFILE "$login:$crypt:0\n";
}
elsif ($md5pass) {
print UFILE $login,":",&unix_crypt($password, "\$1\$XXXXXXXX"),"\n";
}
else {
print UFILE $login,":",&unix_crypt($password, "XX"),"\n";
}
close(UFILE);
chmod(0600, $ufile);
# Generate cert
if (system("openssl version >/dev/null 2>&1") == 0) {
# We can generate a new SSL key for this host
$host = &get_system_hostname();
$cert = &tempname();
$key = &tempname();
open(SSL, "| openssl req -newkey rsa:512 -x509 -nodes -out $cert -keyout $key -days 1825 >/dev/null 2>&1");
print SSL ".\n";
print SSL ".\n";
print SSL ".\n";
print SSL "Webmin Webserver on $host\n";
print SSL ".\n";
print SSL "*\n";
print SSL "root\@$host\n";
$ok = close(SSL);
if (!$?) {
open(CERTIN, $cert);
open(KEYIN, $key);
open(OUT, ">$kfile");
while(<CERTIN>) {
print OUT $_;
}
while(<KEYIN>) {
print OUT $_;
}
close(CERTIN);
close(KEYIN);
close(OUT);
}
unlink($cert, $key);
}
if (!-r $kfile) {
# Fall back to the built-in key
©_source_dest("$wadir/miniserv.pem", $kfile);
}
chmod(0600, $kfile);
print "..done\n";
print "\n";
print "Creating access control file..\n";
$afile = "$config_directory/webmin.acl";
open(AFILE, ">$afile");
if ($ENV{'defaultmods'}) {
print AFILE "$login: $ENV{'defaultmods'}\n";
}
else {
print AFILE "$login: $allmods\n";
}
close(AFILE);
chmod(0600, $afile);
print "..done\n";
print "\n";
if ($login ne "root" && $login ne "admin") {
# Allow use of RPC by this user
open(ACL, ">$config_directory/$login.acl");
print ACL "rpc=1\n";
close(ACL);
}
}
if (!$ENV{'noperlpath"'} && $os_type ne 'windows') {
print "Inserting path to perl into scripts..\n";
system("(find "."e_path($wadir)." -name '*.cgi' -print ; find "."e_path($wadir)." -name '*.pl' -print) | $perl "."e_path("$wadir/perlpath.pl")." $perl -");
print "..done\n";
print "\n";
}
print "Creating start and stop scripts..\n";
if ($os_type eq "windows") {
open(START, ">>$config_directory/start.bat");
print START "$perl \"$wadir/miniserv.pl\" $config_directory/miniserv.conf\n";
close(START);
$start_cmd = "sc start ".($ENV{'bootscript'} || "webmin");
open(STOP, ">>$config_directory/stop.bat");
print STOP "echo Not implemented\n";
close(STOP);
}
else {
open(START, ">$config_directory/start");
print START "#!/bin/sh\n";
print START "echo Starting Webmin server in $wadir\n";
print START "trap '' 1\n";
print START "LANG=\n";
print START "export LANG\n";
print START "unset PERLIO\n";
print START "export PERLIO\n";
print START "PERLLIB=$perllib\n";
print START "export PERLLIB\n";
if ($os_type eq "hpux") {
print START "exec '$wadir/miniserv.pl' $config_directory/miniserv.conf &\n";
}
else {
print START "exec '$wadir/miniserv.pl' $config_directory/miniserv.conf\n";
}
close(START);
$start_cmd = "$config_directory/start";
open(STOP, ">$config_directory/stop");
print STOP "#!/bin/sh\n";
print STOP "echo Stopping Webmin server in $wadir\n";
print STOP "pidfile=\`grep \"^pidfile=\" $config_directory/miniserv.conf | sed -e 's/pidfile=//g'\`\n";
print STOP "kill \`cat \$pidfile\`\n";
close(STOP);
open(RESTART, ">$config_directory/restart");
print RESTART "#!/bin/sh\n";
print RESTART "$config_directory/stop && $config_directory/start\n";
close(RESTART);
chmod(0755, "$config_directory/start", "$config_directory/stop",
"$config_directory/restart");
}
print "..done\n";
print "\n";
if ($upgrading) {
print "Updating config files..\n";
}
else {
print "Copying config files..\n";
}
system("$perl "."e_path("$wadir/copyconfig.pl")." "."e_path("$os_type/$real_os_type")." "."e_path("$os_version/$real_os_version")." "."e_path($wadir)." ".$config_directory." \"\" ".$allmods);
if (!$upgrading) {
# Store the OS and version
&read_file("$config_directory/config", \%gconfig);
$gconfig{'os_type'} = $os_type;
$gconfig{'os_version'} = $os_version;
$gconfig{'real_os_type'} = $real_os_type;
$gconfig{'real_os_version'} = $real_os_version;
$gconfig{'log'} = 1;
&write_file("$config_directory/config", \%gconfig);
}
open(VER, ">$config_directory/version");
print VER $ver,"\n";
close(VER);
print "..done\n";
print "\n";
# Set passwd_ fields in miniserv.conf from global config
&get_miniserv_config(\%miniserv);
foreach $field ("passwd_file", "passwd_uindex", "passwd_pindex", "passwd_cindex", "passwd_mindex") {
if ($gconfig{$field}) {
$miniserv{$field} = $gconfig{$field};
}
}
if (!defined($miniserv{'passwd_mode'})) {
$miniserv{'passwd_mode'} = 0;
}
# If Perl crypt supports MD5, then make it the default
if ($md5pass) {
$gconfig{'md5pass'} = 1;
}
# Set a special theme if none was set before
if ($ENV{'theme'}) {
$theme = $ENV{'theme'};
}
elsif (open(THEME, "$wadir/defaulttheme")) {
chop($theme = <THEME>);
close(THEME);
}
if ($theme && -d "$wadir/$theme") {
$gconfig{'theme'} = $theme;
$miniserv{'preroot'} = $theme;
}
# Set the product field in the global config
$gconfig{'product'} ||= "webmin";
if ($makeboot) {
print "Configuring Webmin to start at boot time..\n";
chdir("$wadir/init");
system("$perl "."e_path("$wadir/init/atboot.pl")." ".$ENV{'bootscript'});
print "..done\n";
print "\n";
}
# If password delays are not specifically disabled, enable them
if (!defined($miniserv{'passdelay'}) && $os_type ne 'windows') {
$miniserv{'passdelay'} = 1;
}
# Save configs
&put_miniserv_config(\%miniserv);
&write_file("$config_directory/config", \%gconfig);
if (!$ENV{'nouninstall'} && $os_type ne "windows") {
print "Creating uninstall script $config_directory/uninstall.sh ..\n";
open(UN, ">$config_directory/uninstall.sh");
print UN <<EOF;
#!/bin/sh
printf "Are you sure you want to uninstall Webmin? (y/n) : "
read answer
printf "\n"
if [ "\$answer" = "y" ]; then
$config_directory/stop
echo "Running uninstall scripts .."
(cd "$wadir" ; WEBMIN_CONFIG=$config_directory WEBMIN_VAR=$var_dir LANG= "$wadir/run-uninstalls.pl")
echo "Deleting $wadir .."
rm -rf "$wadir"
echo "Deleting $config_directory .."
rm -rf "$config_directory"
echo "Done!"
fi
EOF
chmod(0755, "$config_directory/uninstall.sh");
print "..done\n";
print "\n";
}
if ($os_type ne "windows") {
print "Changing ownership and permissions ..\n";
system("chown -R root $config_directory");
system("chgrp -R bin $config_directory");
system("chmod -R og-rw $config_directory");
system("chmod 755 $config_directory/{sendmail,qmailadmin,postfix}*/config >/dev/null 2>&1");
system("chmod 755 $config_directory/{sendmail,qmailadmin,postfix}*/autoreply.pl >/dev/null 2>&1");
system("chmod 755 $config_directory/{sendmail,qmailadmin,postfix}*/filter.pl >/dev/null 2>&1");
system("chmod 755 $config_directory/squid*/squid-auth.pl >/dev/null 2>&1");
system("chmod 755 $config_directory/squid*/users >/dev/null 2>&1");
system("chmod 755 $config_directory/cron*/range.pl >/dev/null 2>&1");
system("chmod +r $config_directory/version");
if (!$ENV{'nochown'}) {
system("chown -R root \"$wadir\"");
system("chgrp -R bin \"$wadir\"");
system("chmod -R og-w \"$wadir\"");
system("chmod -R a+rx \"$wadir\"");
}
if ($var_dir ne "/var") {
system("chown -R root $var_dir");
system("chgrp -R bin $var_dir");
system("chmod -R og-rwx $var_dir");
}
print "..done\n";
print "\n";
}
# Save target directory if one was specified
if ($wadir ne $srcdir) {
open(INSTALL, ">$config_directory/install-dir");
print INSTALL $wadir,"\n";
close(INSTALL);
}
else {
unlink("$config_directory/install-dir");
}
if (!$ENV{'nopostinstall'}) {
print "Running postinstall scripts ..\n";
chdir($wadir);
system("$perl "."e_path("$wadir/run-postinstalls.pl"));
print "..done\n";
print "\n";
}
# Run package-defined post-install script
if (-r "$srcdir/setup-post.pl") {
require "$srcdir/setup-post.pl";
}
if (!$ENV{'nostart'}) {
if (!$miniserv{'inetd'}) {
print "Attempting to start Webmin mini web server..\n";
$ex = system($start_cmd);
if ($ex) {
&errorexit("Failed to start web server!");
}
print "..done\n";
print "\n";
}
print "***********************************************************************\n";
print "Webmin has been installed and started successfully. Use your web\n";
print "browser to go to\n";
print "\n";
$host = &get_system_hostname();
if ($ssl) {
print " https://$host:$miniserv{'port'}/\n";
}
else {
print " http://$host:$miniserv{'port'}/\n";
}
print "\n";
print "and login with the name and password you entered previously.\n";
print "\n";
if ($ssl) {
print "Because Webmin uses SSL for encryption only, the certificate\n";
print "it uses is not signed by one of the recognized CAs such as\n";
print "Verisign. When you first connect to the Webmin server, your\n";
print "browser will ask you if you want to accept the certificate\n";
print "presented, as it does not recognize the CA. Say yes.\n";
print "\n";
}
}
if ($oldwadir ne $wadir && $upgrading && !$ENV{'deletedold'}) {
print "The directory from the previous version of Webmin\n";
print " $oldwadir\n";
print "Can now be safely deleted to free up disk space, assuming\n";
print "that all third-party modules have been copied to the new\n";
print "version.\n";
print "\n";
}
sub errorexit
{
print "ERROR: ",@_,"\n";
print "\n";
exit(1);
}
sub copy_to_wadir
{
if ($wadir ne $srcdir) {
print "Copying files to $wadir ..\n";
if (&has_command("tar")) {
# Unix tar exists
system("cd "."e_path($srcdir)." && tar cf - . | (cd "."e_path($wadir)." ; tar xf -)");
}
else {
# Looks like Windows .. use xcopy command
system("xcopy \"$srcdir\" \"$wadir\" /Y /E /I");
}
print "..done\n";
print "\n";
}
}
sub files_in_dir
{
opendir(DIR, $_[0]);
local @rv = grep { $_ ne "." && $_ ne ".." } readdir(DIR);
closedir(DIR);
return @rv;
}
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