Added naive content length to upload struct

libraries/ESP8266WebServer/src/ESP8266WebServer.h

@@ -55,8 +55,9 @@ typedef struct {
   String  filename;
   String  name;
   String  type;
-  size_t  totalSize;    // file size
+  size_t  totalSize;    // total size of uploaded file so far
   size_t  currentSize;  // size of data currently in buf
+  size_t  contentLength; // size of entire post request, file size + headers and other request data.
   uint8_t buf[HTTP_UPLOAD_BUFLEN];
 } HTTPUpload;
 

libraries/ESP8266WebServer/src/Parsing.cpp

@@ -463,6 +463,7 @@ bool ESP8266WebServer::_parseForm(WiFiClient& client, String boundary, uint32_t
             _currentUpload->type = argType;
             _currentUpload->totalSize = 0;
             _currentUpload->currentSize = 0;
+            _currentUpload->contentLength = len;
 #ifdef DEBUG_ESP_HTTP_SERVER
             DEBUG_OUTPUT.print("Start File: ");
             DEBUG_OUTPUT.print(_currentUpload->filename);