XML-Parser und Modulverwaltung implementiert.

3 files changed, 152 insertions, 0 deletions

diff --git a/code/handlers.inc.php b/code/handlers.inc.php
index 5410de0..a167ba8 100644
--- a/code/handlers.inc.php
+++ b/code/handlers.inc.php
@@ -1,4 +1,6 @@
 <?PHP
+  require_once('code/modules.inc.php');
+  
   $dir = opendir('handlers');
   
   while($file = readdir($dir))
@@ -6,4 +8,7 @@
       include('handlers/' . $file);
   
   closedir($dir);
+  
+  foreach($GLOBALS['modules']->handlers as $file)
+    include($file);
 ?>
diff --git a/code/modules.inc.php b/code/modules.inc.php
index a1bf361..1e84d45 100644
--- a/code/modules.inc.php
+++ b/code/modules.inc.php
@@ -1,5 +1,76 @@
 <?PHP
+  require_once('code/xmlparser.inc.php');
+  
+  function require_mod($file) {
+    if(isset($GLOBALS['modules']->code[$file]))
+      require_once($GLOBALS['modules']->code[$file]);
+    elseif(isset($GLOBALS['modules']->handlers[$file]))
+      require_once($GLOBALS['modules']->handlers[$file]);
+    else
+      require_once($file);
+  }
+  
   class Modules {
+    var $modules;
+    var $code;
+    var $handlers;
     
+    function Modules() {
+      $this->modules = array();
+      $this->code = array();
+      $this->handlers = array();
+      
+      $dir = opendir('modules');
+      
+      while($moddir = readdir($dir)) {
+        if($moddir[0] != '.' && is_dir('modules/' . $moddir)) {
+          $data = $GLOBALS['xmlparser']->ParseFile('modules/' . $moddir . '/module.xml');
+          
+          if(!$data) continue;
+          
+          $info = $GLOBALS['xmlparser']->FindTag($data, 'info');
+          if(!is_array($info)) continue;
+          
+          $name = $GLOBALS['xmlparser']->FindTag($info, 'name');
+          if(!is_array($name)) continue;
+          if(count($name['children']) != 1) continue;
+          if(!is_string($name['children'][0])) continue;
+          
+          $name = $name['children'][0];
+          
+          $this->module[$name] = array('name' => $name, 'code' => array(),
+                                       'handlers' => array());
+          
+          $files = $GLOBALS['xmlparser']->FindTag($data, 'files');
+          if(!is_array($files)) continue;
+          
+          foreach($files['children'] as $file) {
+            if(!is_array($file)) continue;
+            if(count($file['children']) != 1) continue;
+            if(!is_string($file['children'][0])) continue;
+            
+            switch($file['tag']) {
+              case 'code':
+                $filename = 'code/' . $file['children'][0] . '.inc.php';
+                $realname = 'modules/' . $moddir . '/code/' . $file['children'][0] . '.inc.php';
+                
+                $this->code[$filename] = $realname;
+                $this->modules[$name]['code'][$filename] = $realname;
+                break;
+              case 'handler':
+                $filename = 'handlers/' . $file['children'][0] . '.inc.php';
+                $realname = 'modules/' . $moddir . '/handlers/' . $file['children'][0] . '.inc.php';
+                
+                $this->handlers[$filename] = $realname;
+                $this->modules[$name]['handlers'][$filename] = $realname;
+            }
+          }
+        }
+      }
+      
+      closedir($dir);
+    }
   }
+  
+  $GLOBALS['modules'] = new Modules;
 ?>
diff --git a/code/xmlparser.inc.php b/code/xmlparser.inc.php
new file mode 100644
index 0000000..2d53a1f
--- /dev/null
+++ b/code/xmlparser.inc.php
@@ -0,0 +1,76 @@
+<?PHP
+  class XMLParser {
+    var $parser;
+    var $tags;
+    var $depth;
+    
+    function XMLParser() {
+      $this->parser = xml_parser_create();
+      
+      xml_set_object($this->parser, $this);
+      xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0);
+      
+      xml_set_element_handler($this->parser, 'openTagHandler', 'closeTagHandler');
+      xml_set_character_data_handler($this->parser, 'cdataHandler');
+    }
+    
+    function ParseFile($filename) {
+      $this->tags = array();
+      $this->depth = 0;
+      
+      $file = fopen($filename, 'r');
+      
+      while ($xml = fread($file, 4096)) {
+        if(!xml_parse($this->parser, $xml, feof($file))) {
+          $this->tags = null;
+          break;
+        }
+      }
+      
+      fclose($file);
+      
+      return $this->tags[0];
+    }
+    
+    function ParseXML($xml) {
+      $this->tags = array();
+      $this->depth = 0;
+      
+      if(!xml_parse($this->parser, $xml, true))
+        $this->tags = null;
+      
+      return $this->tags[0];
+    }
+    
+    function FindTag($data, $tag, $start = 0) {
+      for($i = $start; $i < count($data['children']); $i++) {
+        if(!is_array($data['children'][$i])) continue;
+        if($data['children'][$i]['tag'] == $tag) return $data['children'][$i];
+      }
+    }
+    
+    function openTagHandler($parser, $name, $attribs) {
+      $this->tags[$this->depth] = array('tag' => $name,
+                                        'attribs' => $attribs,
+                                        'children' => array());
+      
+      $this->depth++;
+    }
+    
+    function closeTagHandler($parser, $name) {
+      $this->depth--;
+      
+      if($this->depth > 0)
+        array_push($this->tags[$this->depth-1]['children'], $this->tags[$this->depth]);
+    }
+    
+    function cdataHandler($parser, $data) {
+      $data = trim($data);
+      
+      if($data != '')
+        array_push($this->tags[$this->depth-1]['children'], $data);
+    }
+  }
+  
+  $GLOBALS['xmlparser'] = new XMLParser;
+?>