Add the rest library : read the wanted output format, and display it if it is available

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@1229 bf3deb0d-5f1a-0410-827f-c0cc1f45334c

rest.php

@@ -0,0 +1,28 @@
+<?php
+require_once ("domframework/http.php");
+class rest
+{
+  public $allowedtypes = array ("json", "xml", "txt", "csv");
+
+  /** Display the message (which can be a string, an array, an integer...)
+      into the type asked by the client if it is allowed.
+      By default, the JSON type is used */
+  function display ($message, $code=200)
+  {
+    $http = new http;
+    $text = $http->codetext ($code);
+    header ($_SERVER["SERVER_PROTOCOL"]." $code $text");
+    $type = reset ($this->allowedtypes);
+    if (isset ($_SERVER["HTTP_ACCEPT"]))
+    {
+      $type = $http->bestChoice ($_SERVER["HTTP_ACCEPT"], $this->allowedtypes,
+                                 $type);
+    }
+    
+    require_once ("domframework/output$type.php");
+    $constr = "output$type";
+    $method = "out";
+    $obj = new $constr ();
+    $obj->$method ($message);
+  }
+}