Added myself to the AUTHORS file.

[squirrelmail.git] / functions / plugin.php

diff --git a/functions/plugin.php b/functions/plugin.php
index cb845ea943044c7c17daf3fa9595c7e395cd2baf..a6371dfa62e1c744e720e055451b2051090fe31e 100644 (file)
--- a/functions/plugin.php
+++ b/functions/plugin.php
@@ -12,37 +12,79 @@
  **
  ** Documentation on how to write plugins might show up some time.
  **
+ ** $Id$
  **/
 
 
-   $plugin_php = true;
+   if (defined('plugin_php'))
+      return;
+   define('plugin_php', true);
+
+   global $plugin_general_debug, $squirrelmail_plugin_hooks;
+   $plugin_general_debug = false;
+   
+   $squirrelmail_plugin_hooks = array();
 
    // This function adds a plugin
    function use_plugin ($name) {
+      global $plugin_general_debug;
+      
       if (file_exists('../plugins/'.$name.'/setup.php')) {
+         if ($plugin_general_debug)
+           echo "plugin:  --  Loading $name/setup.php<br>\n";
          include ('../plugins/'.$name.'/setup.php');
          $function = 'squirrelmail_plugin_init_'.$name;
-         $function();
+         if (function_exists($function))
+        {
+           if ($plugin_general_debug)
+              echo "plugin:  ---- Executing $function to init plugin<br>\n";
+            $function($plugin_general_debug);
+        }
+        elseif ($plugin_general_debug)
+           echo "plugin:  -- Init function $function doesn't exist.<br>\n";
       }
+      elseif ($plugin_general_debug)
+         echo "plugin:  Couldn't find $name/setup.php<br>\n";
    }
 
    // This function executes a hook
    function do_hook ($name) {
       global $squirrelmail_plugin_hooks;
-      if (is_array($squirrelmail_plugin_hooks[$name])) {
-         reset($squirrelmail_plugin_hooks[$name]);
-         
-         while (list ($id, $function) = 
-                each ($squirrelmail_plugin_hooks[$name])) {
+      $Data = func_get_args();
+      if (isset($squirrelmail_plugin_hooks[$name]) && 
+          is_array($squirrelmail_plugin_hooks[$name])) {
+         foreach ($squirrelmail_plugin_hooks[$name] as $id => $function) {
             // Add something to set correct gettext domain for plugin
-            $function();
+            if (function_exists($function)) {
+                $function($Data);
+            }
          }
       }
-   }
+      
+      // Variable-length argument lists have a slight problem when
+      // passing values by reference.  Pity.  This is a workaround.
+      return $Data;
+  }
 
    // On startup, register all plugins configured for use
-   if (is_array($plugins))
-      while (list ($id, $name) = each ($plugins))
+   if (isset($plugins) && is_array($plugins))
+      foreach ($plugins as $id => $name)
+      {
+         if ($plugin_general_debug)
+           echo "plugin:  Attempting load of plugin $name<br>\n";
          use_plugin($name);
+      }
+
+   if ($plugin_general_debug)
+   {
+      echo "plugin:  Hook list<br>\n";
+      foreach ($squirrelmail_plugin_hooks as $Hook => $Plugins)
+      {
+          foreach ($Plugins as $Name => $Func)
+         {
+             echo "[$Hook][$Name] = $Func<br>\n";
+         }
+      }
+   }
 
 ?>