Question

I have a simple program either a server or client not sure which end it is. I open a port and accept messages on it. this works but it crashed last night when I revived a message via GET not POST. As you may have noticed I am very new to networking.

I am getting the transmission ok (the socket stuff) but i cant read the message.

this is the code i currently use.

//read HTTp header until the message size comes in
            for(int eight = 0; eight < 8; eight++)
            {
                message = in.readLine();
                LOGGER.fatal(eight);
                LOGGER.fatal(message);

                if(message.contains("Content-Length"))
                {
                    try {

                        Pattern pattern = Pattern.compile("\\d+");
                        Matcher matcher = pattern.matcher(message);
                        while (matcher.find()) {
                            sizeInt = Integer.parseInt(matcher.group());
                                               }
                        }

                    catch (Exception e) 
                        {
                            LOGGER.fatal("size not found on header line", e);
                            //System.exit(-1);
                        }                   
                }
            }

            LOGGER.fatal(sizeInt);

            LOGGER.fatal("---------------------------");

            char[] buffer =new char[sizeInt];

            //skip blank line between header and message
            message = in.readLine();

            //read message
            int fullRead = 0;
            int thisRead = 0;
            do
            {
                thisRead = in.read(buffer, fullRead, sizeInt - fullRead);   
                LOGGER.info(fullRead + " of " + sizeInt + " bytes of message read");
                fullRead += thisRead;

            }while(fullRead != sizeInt);

The problem iv’e got is that the GET method does not seen to have the size of the message in bytes and without that I don’t know how the read the message without it hanging.

I’m using java.

Can anyone suggest how I can edit this code to understand a GET message.

Answer 1

A GET request doesn’t have any content – there’s nothing to read. Any data has to be in the headers / URL.