<?php
/* $Id: sqlvalidator.lib.php,v 1.6 2002/10/23 04:17:26 robbat2 Exp $ */
// vim: expandtab sw=4 ts=4 sts=4:


/**
 * SQL Validator interface for phpMyAdmin
 *
 * Copyright 2002 Robin Johnson <robbat2@users.sourceforge.net>
 * http://www.orbis-terrarum.net/?l=people.robbat2
 *
 * This function uses the Mimer SQL Validator service
 * <http://developer.mimer.com/validator/index.htm> from phpMyAdmin
 *
 * Copyright for Server side validator systems:
 * "All SQL statements are stored anonymously for statistical purposes.
 * Mimer SQL Validator, Copyright 2002 Upright Database Technology.
 * All rights reserved."
 *
 * All data is transported over HTTP-SOAP
 * And uses the PEAR SOAP Module
 *
 * Install instructions for PEAR SOAP
 * Make sure you have a really recent PHP with PEAR support
 * run this: "pear install Mail_Mime Net_DIME SOAP"
 *
 * Enable the SQL Validator options in the configuration file
 * $cfg['SQLQuery']['Validate'] = TRUE;
 * $cfg['SQLValidator']['use']  = FALSE;
 *
 * Also set a username and password if you have a private one
 */


if (!defined('PMA_SQL_VALIDATOR_INCLUDED')) {
    define('PMA_SQL_VALIDATOR_INCLUDED', 1);

    // We need the PEAR libraries, so do a minimum version check first
    // I'm not sure if PEAR was available before this point
    // For now we actually use a configuration flag
    if ($cfg['SQLValidator']['use'] == TRUE)  {
        // We cannot check && !defined(PMA_SQL_VALIDATOR_CLASS_INCLUDED))
        // as it will produce a nasty warning message
        include('./libraries/sqlvalidator.class.php');
    } // if ($cfg['SQLValidator']['use'] == TRUE)


    /**
     * This function utilizes the Mimer SQL Validator service
     * to validate an SQL query
     *
     * <http://developer.mimer.com/validator/index.htm>
     *
     * @param   string   SQL query to validate
     *
     * @return  string   Validator result string
     *
     * @global  array    The PMA configuration array
     */
    function PMA_validateSQL($sql)
    {
        global $cfg;

        $str = '';

        if ($cfg['SQLValidator']['use']) {
            if (!(isset($GLOBALS['sqlvalidator_error'])
                && !$GLOBALS['sqlvalidator_error'])) {
                // create new class instance
                $srv = new PMA_SQLValidator();

                // Checks for username settings
                // The class defaults to anonymous with an empty password
                // automatically
                if ($cfg['SQLValidator']['username'] != '') {
                    $srv->setCredentials($cfg['SQLValidator']['username'], $cfg['SQLValidator']['password']);
                }

                // Identify ourselves to the server properly...
                $srv->appendCallingProgram('phpMyAdmin', PMA_VERSION);

                // ... and specify what database system we are using
                $srv->setTargetDbms('MySQL', PMA_MYSQL_STR_VERSION);

                // Log on to service
                $srv->start();

                // Do service validation
                $str = $srv->validationString($sql);

            } else {
                $str = sprintf($GLOBALS['strValidatorError'], '<a href="./Documentation.html#faqsqlvalidator" target="documentation">', '</a>');

            }

        } // end if

        /*
        else {
            // The service is not available so note that properly
            $str = $GLOBALS['strValidatorDisabled'];
        } // end if... else...
        */

        // Gives string back to caller
        return $str;
    } // end of the "PMA_validateSQL()" function

} // $__PMA_SQL_VALIDATOR__

?>