Revert "Use Horde_Stream_Temp"

This reverts commit 693c430.

framework/ActiveSync/lib/Horde/ActiveSync/Wbxml/Decoder.php

@@ -79,8 +79,8 @@ public function readWbxmlHeader()
         $this->_readVersion();
         if ($this->version != self::WBXML_VERSION) {
             // Not Wbxml - save the byte we already read.
-            $this->_getTempStream();
-            $this->_buffer->add(chr($this->version));
+            $this->_buffer = fopen('php://temp/maxmemory:2097152', 'r+');
+            fwrite($this->_buffer, chr($this->version));
             $this->_isWbxml = false;
             return;
         } else {
@@ -120,9 +120,14 @@ public function isWbxml()
     public function getFullInputStream()
     {
         // Ensure the buffer was created
-        $this->_getTempStream();
-        $this->_buffer->add($this->_stream);
-        $this->_buffer->rewind();
+        if (!isset($this->_buffer)) {
+            $this->_buffer = fopen('php://temp/maxmemory:2097152', 'r+');
+        }
+        while (!feof($this->_stream)) {
+            fwrite($this->_buffer, fread($this->_stream, 8192));
+        }
+        rewind($this->_buffer);
+
         return $this->_buffer;
     }
 
@@ -708,18 +713,4 @@ private function _getMapping($cp, $id)
         }
     }
 
-    /**
-     * Return the temporary buffer stream.
-     *
-     * @return stream
-     */
-    protected function _getTempStream()
-    {
-        if (!isset($this->_buffer)) {
-            $this->_buffer = new Horde_Stream_Temp();
-        }
-
-        return $this->_buffer;
-    }
-
-}
+}