--- restws.module.original	2013-03-25 15:05:32.335380229 -0700
+++ restws.module	2013-03-25 15:05:15.850378571 -0700
@@ -133,6 +133,50 @@
       try {
         $method = $op . 'Resource';
         if ($op == 'create') {
+
+     /**
+      * Add image field support (base64)
+      * @author BLE
+      * @version 1.1
+      */
+          // intercept payload and convert for manipulation
+          $payload_array = json_decode($payload);
+          // get field information for specified entity and type (bundle)
+          $fields_info = field_info_instances($resource_name, $payload_array->{"type"});
+          // loop through each field looking for image type
+          foreach ($fields_info as $field_name => $value) {
+            $field_info = field_info_field($field_name);
+            $type = $field_info['type'];
+            if ($type == "image") {
+              // get base64 image string
+              $base64_data = (isset($payload_array->$field_name)) ? $payload_array->$field_name : null;
+              // remove base64 prefix metadata, if exists
+              $result = preg_split('/^data\:image\/(.*)\;base64\,/', $base64_data, -1, PREG_SPLIT_NO_EMPTY);
+              if (count($result) > 0) {
+                // replace any spaces with base64-compliant '+' signs and convert to binary image
+                $data = base64_decode(str_replace(' ', '+', $result[0]));
+                // base64 string may not have included a metadata prefix so create instance to determine mime type
+                $finfo = finfo_open();
+                $mime_type = finfo_buffer($finfo, $data, FILEINFO_MIME_TYPE);
+                finfo_close($finfo);
+                // get and validate image extension from mime type
+                $ext = str_replace('image/', '', $mime_type);
+                if ($ext == "png" || $ext == "gif" || $ext == "jpeg") {
+                  // create filename (format: entity_name_timestamp.ext, e.g. favorite_color_survey_1363723712.png)
+                  $filename = $payload_array->{"type"} . "_" . time() . "." . $ext;
+                  // save binary image in Drupal site's public file directory
+                  if ($file = file_save_data($data, "public://" . $filename)) {
+                    file_save($file);
+                    // replace the base64 image string in the payload with the file id reference of the newly created image
+                    $payload_array->$field_name = array('fid' => $file->fid);
+                  }
+                }
+              }
+            }
+          }
+          // convert the payload back to a json string
+          $payload = json_encode($payload_array);
+
           print $format->$method($resource, $payload);
           drupal_add_http_header('Status', '201 Created');
         }