100 lines
2.7 KiB
PHP
100 lines
2.7 KiB
PHP
<?php
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/**
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* plugin.php
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*
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* Copyright (c) 1999-2002 The SquirrelMail Project Team
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* Licensed under the GNU GPL. For full terms see the file COPYING.
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*
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* This file provides the framework for a plugin architecture.
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*
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* Documentation on how to write plugins might show up some time.
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*
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* $Id$
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*/
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global $squirrelmail_plugin_hooks;
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$squirrelmail_plugin_hooks = array();
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/* This function adds a plugin. */
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function use_plugin ($name) {
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if (file_exists(SM_PATH . "plugins/$name/setup.php")) {
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include_once(SM_PATH . "plugins/$name/setup.php");
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$function = "squirrelmail_plugin_init_$name";
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if (function_exists($function)) {
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$function();
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}
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}
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}
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/* This function executes a hook. */
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function do_hook ($name) {
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global $squirrelmail_plugin_hooks;
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$data = func_get_args();
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$ret = '';
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if (isset($squirrelmail_plugin_hooks[$name])
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&& is_array($squirrelmail_plugin_hooks[$name])) {
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foreach ($squirrelmail_plugin_hooks[$name] as $function) {
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/* Add something to set correct gettext domain for plugin. */
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if (function_exists($function)) {
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$function($data);
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}
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}
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}
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/* Variable-length argument lists have a slight problem when */
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/* passing values by reference. Pity. This is a workaround. */
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return $data;
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}
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/* This function executes a hook. */
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function do_hook_function($name,$parm=NULL) {
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global $squirrelmail_plugin_hooks;
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$ret = '';
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if (isset($squirrelmail_plugin_hooks[$name])
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&& is_array($squirrelmail_plugin_hooks[$name])) {
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foreach ($squirrelmail_plugin_hooks[$name] as $function) {
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/* Add something to set correct gettext domain for plugin. */
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if (function_exists($function)) {
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$ret = $function($parm);
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}
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}
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}
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/* Variable-length argument lists have a slight problem when */
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/* passing values by reference. Pity. This is a workaround. */
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return $ret;
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}
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/**
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* This function checks whether the user's USER_AGENT is known to
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* be broken. If so, returns true and the plugin is invisible to the
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* offending browser.
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*/
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function soupNazi(){
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$soup_menu = array('Mozilla/3','Mozilla/2','Mozilla/1', 'Opera 4',
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'Opera/4', 'OmniWeb', 'Lynx');
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foreach($soup_menu as $browser) {
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if(stristr($_SERVER['HTTP_USER_AGENT'], $browser)) {
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return 1;
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}
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}
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return 0;
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}
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/*************************************/
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/*** MAIN PLUGIN LOADING CODE HERE ***/
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/*************************************/
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/* On startup, register all plugins configured for use. */
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if (isset($plugins) && is_array($plugins)) {
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foreach ($plugins as $name) {
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use_plugin($name);
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}
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}
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?>
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