Subversion Repositories oidplus

<?php

/*

 * OIDplus 2.0

 * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

spl_autoload_register(function ($fq_class_name) {

        static $class_refs = null;

        // We only load based on the last element of the class name (ignore namespace)

        // If there are multiple classes matching that name we just include all class files

        $path = explode('\\',$fq_class_name);

        $class_name = array_pop($path);

        $namespace = implode('\\',$path);

        if (is_null($class_refs)) {

                $valid_plugin_folders = array(

                        'adminPages',

                        'auth',

                        'database',

                        'design',

                        'language',

                        'logger',

                        'objectTypes',

                        'publicPages',

                        'raPages',

                        'sqlSlang',

                        'captcha'

                );

                $func = function(&$class_refs, $class_files, $namespace='') {

                        foreach ($class_files as $filename) {

                                $cn = strtolower(basename($filename));

                                $cn = preg_replace('@(\\.class){0,1}\\.phps{0,1}$@', '', $cn);

                                if (!empty($namespace)) {

                                        if (substr($namespace,-1,1) !== '\\') $namespace .= '\\';

                                        $cn = strtolower($namespace) . $cn;

                                }

                                if (!isset($class_refs[$cn])) {

                                        $class_refs[$cn] = array($filename);

                                } else {

                                        $class_refs[$cn][] = $filename;

                                }

                        }

                };

                $class_files = array();

                // Global namespace / OIDplus

                // (the last has the highest priority)

                foreach ($valid_plugin_folders as $folder) {

                        $class_files = array_merge($class_files, glob(__DIR__ . '/../plugins/'.'*'.'/'.$folder.'/'.'*'.'/'.'*'.'.class.php'));

                }

                $class_files = array_merge($class_files, glob(__DIR__ . '/classes/'.'*'.'.class.php'));

                $class_files = array_merge($class_files, glob(__DIR__ . '/../vendor/danielmarschall/fileformats/'.'*'.'.class.php'));

                $class_files = array_merge($class_files, glob(__DIR__ . '/../vendor/danielmarschall/php_utils/'.'*'.'.class.php'));

                $class_files = array_merge($class_files, glob(__DIR__ . '/../vendor/danielmarschall/oidconverter/php/'.'*'.'.class.phps'));

                $func($class_refs, $class_files);

        }

        $class_name = strtolower($class_name);

        if (isset($class_refs[$class_name])) {

                foreach ($class_refs[$class_name] as $inc) {

                        require $inc;

                }

                unset($class_refs[$class_name]); // this emulates a "require_once" and is faster

        }

});

/*

 * Interfaces starting with INTF_OID are "optional interfaces". If they are not found by previous autoloaders,

 * then they will be defined by a "fake interface" that contains nothing.

 * For OIDplus, INTF_OID interfaces are used if plugins communicate with other plugins, i.e.

 * a plugin offers a service which another plugin can use. However, if one of the plugins does not exist,

 * PHP shall not crash! So, this idea of "optional interfaces" was born.

 * Previously, we used "implementsFeature()" which acted like Microsoft COM's GUID interfaces,

 * but this had the downside that types could not be checked.

 */

spl_autoload_register(function ($fq_class_name) {

        $path = explode('\\',$fq_class_name);

        $class_name = array_pop($path);

        $namespace = implode('\\',$path);

        if (str_starts_with($class_name, "INTF_OID_")) {

                if (($namespace != "ViaThinkSoft\\OIDplus") && str_starts_with($class_name, "INTF_OID_1_3_6_1_4_1_37476_")) {

                        throw new Exception(_L('Third-party plugin tries to access a ViaThinkSoft-INTF_OID interface "%1", but is not in the ViaThinkSoft\\OIDplus namespace', $fq_class_name));

                }

                if (($namespace == "ViaThinkSoft\\OIDplus") && !str_starts_with($class_name, "INTF_OID_1_3_6_1_4_1_37476_")) {

                        throw new Exception(_L('ViaThinkSoft plugin tries to access a Third-Party-INTF_OID interface "%1", but is not in the third-party namespace', $fq_class_name));

                }

                $fake_content = "";

                if ($namespace) $fake_content .= "namespace $namespace;\n\n";

                $fake_content .= "interface $class_name { }\n\n";

                eval($fake_content);

        }

});