[undertow-dev] UTF8 form parsing

Hello, I am using utf-8 as default encoding for the web and it didn't worked out of the box with Undertow and EagerFormParsingHandler. It turned out that MultiPartParserDefinition has a default iso-8859-1 encoding and that it's quite hard to change it. You have to create a custom FormParserFactory containing a MultiPartParserDefinition with the right setDefaultEncoding() that's a lot of work for something that common and I had to spend half an hour looking at Undertow sources to understand how it work and why my input was garbage. The assumption that Browsers will add a "; charset=UTF-8" to the Content type is false (at least with google chrome). My temporary hack is to override EagerFormParsingHandler and modify the request CONTENT_TYPE header to add the UTF-8 charset and then setNext my real HttpHandler (I had less mental friction doing this than learning how to create my custom FormParserFactor). new EagerFormParsingHandler(){ override def handleRequest(x:HttpServerExchange){ val ct = x.getRequestHeaders().get(Headers.CONTENT_TYPE).getLast() x.getRequestHeaders().put(Headers.CONTENT_TYPE, ct+"; charset=UTF-8") super.handleRequest(x) } }.setNext(new HttpHandler(){ def handleRequest(x:HttpServerExchange){ ... } }) Now that I know it I can create my own Utf8FormParsingHandler but I imagine that other users will want to be able to define the encoding out of the box. Maybe with a new self documenting contructor like : new EagerFormParsingHandler(encoding:String, nextHandler:HttpHandler) Best regards Laurent