Handling PUT Requests on HTTP server.

[Sean Casey]

Hi I'm creating a simple HTTP client and Server that supports GET and PUT requests. For the client side I'm using a DataOutputStream to send the request and the file for a PUT request. I'm having trouble retrieving this on the server side though. I attempted to use a BufferedReader and I read the first line of the response, and then I open a DataInputStream and try to read the file but it's not working. Is this the wrong approach for implementing a PUT request? The GET is working great. If anyone has any ideas or could point to some resource I'd appreciate it.

Thanks for your time.

[Sean Casey]

This is really a problem with IO blocking. I send the file from the client side without a problem, but on the server-side with the following code:

if(cmd.equals("PUT")){

int c;
while ((c = inFromClient.read()) != -1){
System.out.write(c);
}
  

inFromClient is a BufferedReader. My problem is that I never come to the value of -1, after the last line of the file is sent, this loop just blocks. Anyone have any ideas how to prevent this? Thanks.

[Stan James]

I haven't done PUT but here's my code for POST. It's called after reading the headers to a blank line if the verb is post and it is not multi-part. It relies on the content size header which works in my environment but may not be safe in the real world:

private void readPostData() throws UnsupportedEncodingException
{
    String lLength = mRequest.getHeader(Request.CONTENT_LENGTH);
    int lContentLength = Integer.parseInt(lLength.trim());
    byte[] lBuffer = new byte[lContentLength];
    int lBytesRead = 0;
    while (lBytesRead < lContentLength)
    {
        int lChunkSize;
        try
        {
            lChunkSize = mStreamIn.read(lBuffer, lBytesRead, lContentLength - lBytesRead);
        }
        catch (Exception e)
        {
            throw new WikiException("MessageReader.readPostData Error reading request: " + e, e);
        }
        if (lChunkSize < 0)
            throw new WikiException("NewMessageReader.readPostData Unexpected end of input");
        lBytesRead += lChunkSize;
    }
    String lData = new String(lBuffer, 0, lBytesRead);
    Logger.log("MessageReader", "MessageReader.readPostData Data=" + lData);
    parseParameters(lData, "&");
} 

Is PUT significantly different?