adm_config_set.php

<?php
# MantisBT - A PHP based bugtracking system

# MantisBT is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# MantisBT is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with MantisBT.  If not, see <http://www.gnu.org/licenses/>.

/**
 * This page sets a configuration setting
 *
 * @package MantisBT
 * @copyright Copyright 2000 - 2002  Kenzaburo Ito - kenito@300baud.org
 * @copyright Copyright 2002  MantisBT Team - mantisbt-dev@lists.sourceforge.net
 * @link http://www.mantisbt.org
 *
 * @uses core.php
 * @uses access_api.php
 * @uses config_api.php
 * @uses constant_inc.php
 * @uses form_api.php
 * @uses gpc_api.php
 * @uses print_api.php
 * @uses project_api.php
 * @uses utility_api.php
 */

require_once( '../core.php' );
require_api( 'access_api.php' );
require_api( 'config_api.php' );
require_api( 'constant_inc.php' );
require_api( 'form_api.php' );
require_api( 'gpc_api.php' );
require_api( 'print_api.php' );
require_api( 'project_api.php' );
require_api( 'utility_api.php' );

form_security_validate( 'adm_config_set' );

$f_user_id = gpc_get_int( 'user_id' );
$f_project_id = gpc_get_int( 'project_id' );
$f_config_option = gpc_get_string( 'config_option' );
$f_type = gpc_get_string( 'type' );
$f_value = gpc_get_string( 'value' );

if ( is_blank( $f_config_option ) ) {
	throw new MantisBT\Exception\Field\EmptyField( 'config_option' );
}

access_ensure_global_level( config_get( 'set_configuration_threshold' ) );

if ( $f_project_id != ALL_PROJECTS ) {
	project_ensure_exists( $f_project_id );
}

# make sure that configuration option specified is a valid one.
$t_not_found_value = '***CONFIG OPTION NOT FOUND***';
if ( config_get_global( $f_config_option, $t_not_found_value ) === $t_not_found_value ) {
	throw new MantisBT\Exception\Configuration\OptionNotFound( $f_config_option );
}

# make sure that configuration option specified can be stored in the database
if ( !config_can_set_in_database( $f_config_option ) ) {
	throw new MantisBT\Exception\Configuration\OptionCanNotBeSetInDatabase( $f_config_option );
}

if ( $f_type === 'default' ) {
	$t_config_global_value = config_get_global( $f_config_option );
	if ( is_string( $t_config_global_value ) ) {
		$t_type = 'string';
	} else if ( is_int( $t_config_global_value ) ) {
		$t_type = 'integer';
	} else { # note that we consider bool and float as complex.  We use ON/OFF for bools which map to numeric.
		$t_type = 'complex';
	}
} else {
	$t_type = $f_type;
}

if ( $t_type === 'string' ) {
	$t_value = $f_value;
} else if ( $t_type === 'integer' ) {
	$t_value = (integer)$f_value;
} else {
	# We support these kind of variables here:
	# 1. constant values (like the ON/OFF switches): they are defined as constants mapping to numeric values
	# 2. simple arrays with the form: array( a, b, c, d )
	# 3. associative arrays with the form: array( a=>1, b=>2, c=>3, d=>4 )
	# TODO: allow multi-dimensional arrays, allow commas and => within strings
	$t_full_string = trim( $f_value );
	if ( preg_match('/array[\s]*\((.*)\)/s', $t_full_string, $t_match ) === 1 ) {
		// we have an array here
		$t_values = explode( ',', trim( $t_match[1] ) );
		foreach ( $t_values as $key => $value ) {
			if ( !trim( $value ) ) {
				continue;
			}
			$t_split = explode( '=>', $value, 2 );
			if ( count( $t_split ) == 2 ) {
				// associative array
				$t_new_key = constant_replace( trim( $t_split[0], " \t\n\r\0\x0B\"'" ) );
				$t_new_value = constant_replace( trim( $t_split[1], " \t\n\r\0\x0B\"'" ) );
				$t_value[ $t_new_key ] = $t_new_value;
			} else {
				// regular array
				$t_value[ $key ] = constant_replace( trim( $value, " \t\n\r\0\x0B\"'" ) );
			}
		}
	} else {
		// scalar value
		$t_value = constant_replace( trim( $t_full_string ) );
	}
}

config_set( $f_config_option, $t_value, $f_user_id, $f_project_id );

form_security_purge( 'adm_config_set' );

print_successful_redirect( 'adm_config_report.php' );


/**
 * Check if the passed string is a constant and return its value
 * @param string $p_name constant name
 * @return string
 */
function constant_replace( $p_name ) {
	$t_result = $p_name;
	if ( is_string( $p_name ) && defined( $p_name ) ) {
		// we have a constant
		$t_result = constant( $p_name );
	}
	return $t_result;
}