examples/image-organizer/php/router.php

   1 <?php
   2 require('config.php');
   3
   4 class BogusAction {
   5         public $action;
   6         public $method;
   7         public $data;
   8         public $tid;
   9 }
  10
  11 $isForm = false;
  12 $isUpload = false;
  13 if(isset($HTTP_RAW_POST_DATA)){
  14         header('Content-Type: text/javascript');
  15         $data = json_decode($HTTP_RAW_POST_DATA);
  16 }else if(isset($_POST['extAction'])){ // form post
  17         $isForm = true;
  18         $isUpload = $_POST['extUpload'] == 'true';
  19         $data = new BogusAction();
  20         $data->action = $_POST['extAction'];
  21         $data->method = $_POST['extMethod'];
  22     $data->tid = isset($_POST['extTID']) ? $_POST['extTID'] : null; // not set for upload
  23         $data->data = array($_POST, $_FILES);
  24 }else{
  25         die('Invalid request.');
  26 }
  27
  28 function doRpc($cdata){
  29     global $API;
  30         try {
  31                 if(!isset($API[$cdata->action])){
  32                         throw new Exception('Call to undefined action: ' . $cdata->action);
  33                 }
  34
  35                 $action = $cdata->action;
  36                 $a = $API[$action];
  37
  38                 doAroundCalls($a['before'], $cdata);
  39
  40                 $method = $cdata->method;
  41                 $mdef = $a['methods'][$method];
  42                 if(!$mdef){
  43                         throw new Exception("Call to undefined method: $method on action $action");
  44                 }
  45                 doAroundCalls($mdef['before'], $cdata);
  46
  47                 $r = array(
  48                         'type'=>'rpc',
  49                         'tid'=>$cdata->tid,
  50                         'action'=>$action,
  51                         'method'=>$method
  52                 );
  53
  54                 require_once("classes/$action.php");
  55                 $o = new $action();
  56
  57                 $params = isset($cdata->data) && is_array($cdata->data) ? $cdata->data : array();
  58
  59                 $r['result'] = call_user_func_array(array($o, $method), $params);
  60
  61                 doAroundCalls($mdef['after'], $cdata, $r);
  62                 doAroundCalls($a['after'], $cdata, $r);
  63         }
  64         catch(Exception $e){
  65                 $r['type'] = 'exception';
  66                 $r['message'] = $e->getMessage();
  67                 $r['where'] = $e->getTraceAsString();
  68         }
  69         return $r;
  70 }
  71
  72
  73 function doAroundCalls(&$fns, &$cdata, &$returnData=null){
  74         if(!$fns){
  75                 return;
  76         }
  77         if(is_array($fns)){
  78                 foreach($fns as $f){
  79                         $f($cdata, $returnData);
  80                 }
  81         }else{
  82                 $fns($cdata, $returnData);
  83         }
  84 }
  85
  86 $response = null;
  87 if(is_array($data)){
  88         $response = array();
  89         foreach($data as $d){
  90                 $response[] = doRpc($d);
  91         }
  92 }else{
  93         $response = doRpc($data);
  94 }
  95 if($isForm && $isUpload){
  96         echo '<html><body><textarea>';
  97         echo json_encode($response);
  98         echo '</textarea></body></html>';
  99 }else{
 100         echo json_encode($response);
 101 }