#!/usr/bin/perl

=head1 create-database.pl

Creates a database for a virtual server

This command creates a new MySQL or PostgreSQL database, and associates it
with an existing virtual server. You must supply the C<--domain> parameter to
specify the server, C<--name> to set the database name, and C<--type> followed by
either C<mysql>, C<postgres> or some plugin database type. It would typically be run
something like :

  create-database.pl --domain foo.com --name foo_phpbb --type mysql

Some database types support additional creation-time options, specified using the C<--opt> flag. At the time of writing, those available for MySQL are :

C<--opt charset name> - Sets the character set (like latin2 or euc-jp) for the new database.

And for PostgreSQL, the options are :

C<--opt encoding name> - Sets the text encoding (like LATIN2 or EUC_JP) for the new database.

=cut

package virtual_server;
if (!$module_name) {
	$main::no_acl_check++;
	$ENV{'WEBMIN_CONFIG'} ||= "/etc/webmin";
	$ENV{'WEBMIN_VAR'} ||= "/var/webmin";
	if ($0 =~ /^(.*)\/[^\/]+$/) {
		chdir($pwd = $1);
		}
	else {
		chop($pwd = `pwd`);
		}
	$0 = "$pwd/create-database.pl";
	require './virtual-server-lib.pl';
	$< == 0 || die "create-database.pl must be run as root";
	}
&licence_status();
@OLDARGV = @ARGV;

# Parse command-line args
while(@ARGV > 0) {
	local $a = shift(@ARGV);
	if ($a eq "--domain") {
		$domain = shift(@ARGV);
		}
	elsif ($a eq "--name") {
		$name = shift(@ARGV);
		}
	elsif ($a eq "--type") {
		$type = shift(@ARGV);
		}
	elsif ($a eq "--opt") {
		local $oname = shift(@ARGV);
		local $ovalue;
		($oname, $ovalue) = split(/\s+/, $oname);
		$ovalue ||= shift(@ARGV);
		$oname && $ovalue ne '' ||
		  &usage("--opt must be followed by an option name and value");
		$opts{$oname} = $ovalue;
		}
	elsif ($a eq "--multiline") {
		$multiline = 1;
		}
	elsif ($a eq "--help") {
		&usage();
		}
	else {
		&usage("Unknown parameter $a");
		}
	}

$domain || &usage("No domain specified");
$name || &usage("No database name specified");
$type || &usage("No database type specified");
$d = &get_domain_by("dom", $domain);
$d || usage("Virtual server $domain does not exist");
@dbs = &domain_databases($d);
$d->{$type} || &usage("The specified database type is not enabled in this virtual server");

# Append prefix, if any
$tmpl = &get_template($d->{'template'});
if ($tmpl->{'mysql_suffix'} ne "none") {
	$prefix = &substitute_domain_template($tmpl->{'mysql_suffix'}, $d);
	$prefix = &fix_database_name($prefix, $type);
	if ($name !~ /^\Q$prefix\E/i) {
		$name = $prefix.$name;
		}
	}

# Validate the name
$name = lc($name);
$err = &validate_database_name($d, $type, $name);
&usage($err) if ($err);

# Check for clash in the virtual server
($clash) = grep { $_->{'name'} eq $name &&
		  $_->{'type'} eq $type } @dbs;
$clash && &usage("A database with the same name and type is already associated with this server");

# Check for a global clash
if (&indexof($type, &list_database_plugins()) >= 0) {
	&plugin_call($type, "database_clash", $d, $name) &&
		&usage("A database called $name already exists");
	}
else {
	$cfunc = "check_".$type."_database_clash";
	&$cfunc($d, $name) && &usage("A database called $name already exists");
	}

# Work out default creation options if needed
if (!%opts) {
	$ofunc = "default_".$type."_creation_opts";
	if (defined(&$ofunc)) {
		$optsref = &$ofunc($d);
		%opts = %$optsref;
		}
	}

# Do it
&set_all_null_print();
if (&indexof($type, &list_database_plugins()) >= 0) {
	$ok = &plugin_call($type, "database_create", $d, $name, \%opts);
	}
else {
	$crfunc = "create_".$type."_database";
	$ok = &$crfunc($d, $name, \%opts);
	}
&save_domain($d);
&refresh_webmin_user($d);
&run_post_actions();
if ($ok) {
	&virtualmin_api_log(\@OLDARGV, $d);
	print "Database $name created successfully\n";
	}
else {
	print "Database creation failed!\n";
	}

sub usage
{
print "$_[0]\n\n" if ($_[0]);
print "Creates a new database associated with some virtual server.\n";
print "\n";
print "virtualmin create-database --domain domain.name\n";
print "                           --name database-name\n";
print "                           --type mysql|postgres\n";
print "                           [--opt \"name value\"]*\n";
exit(1);
}