From 254ee6f47eebfc00462c10756a92066e82cc1a96 Mon Sep 17 00:00:00 2001
From: Andrew Branson <andrew@andrewbranson.net>
Date: Tue, 21 Jun 2011 15:46:02 +0200
Subject: Initial commit

---
 .../c2kernel/utils/server/HTTPRequestHandler.java  | 155 +++++++++++++++++++++
 1 file changed, 155 insertions(+)
 create mode 100755 source/com/c2kernel/utils/server/HTTPRequestHandler.java

(limited to 'source/com/c2kernel/utils/server/HTTPRequestHandler.java')

diff --git a/source/com/c2kernel/utils/server/HTTPRequestHandler.java b/source/com/c2kernel/utils/server/HTTPRequestHandler.java
new file mode 100755
index 0000000..1cad863
--- /dev/null
+++ b/source/com/c2kernel/utils/server/HTTPRequestHandler.java
@@ -0,0 +1,155 @@
+package com.c2kernel.utils.server;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.Socket;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.NoSuchElementException;
+import java.util.StringTokenizer;
+
+import com.c2kernel.utils.Logger;
+
+public class HTTPRequestHandler implements SocketHandler {
+
+    protected HashMap headers = new HashMap();
+    protected String method;
+    protected String resource;
+    protected String version;
+    protected String returnMIME;
+    protected String statusCode;
+    protected String postData;
+    protected final static String CRLF = "\r\n";
+    protected BufferedReader request;
+    protected Socket currentSocket = null;
+   
+    public HTTPRequestHandler() { }
+    
+    public String getName() {
+        return "HTTP Server";
+    }
+
+    public boolean isBusy() {
+        return (currentSocket!=null);
+    }
+
+    public void setSocket(Socket newSocket) {
+        currentSocket = newSocket;
+    }
+    
+    public void shutdown() {
+        try {
+            if (currentSocket != null) currentSocket.close();
+        } catch (IOException e) {
+            Logger.error("Error shutting down HTTP connection");
+        }
+        currentSocket = null;
+    }
+        
+    public void run() {
+        Thread.currentThread().setName("HTTP Request Handler");
+        try {
+            request = new BufferedReader(new InputStreamReader(currentSocket.getInputStream()));    
+            // parse the request
+            boolean firstLine = true;
+            String headerLine;
+            do {
+                headerLine = request.readLine();
+                if (headerLine == null)
+                    throw new IOException("Disconnected");
+                if (firstLine) { // request line
+                    StringTokenizer params = new StringTokenizer(headerLine);
+                    try {
+                        method = params.nextToken();
+                        resource = params.nextToken();
+                        version = params.nextToken();
+                    } catch (NoSuchElementException ex1) { } // incomplete request line - doesn't matter
+                    firstLine = false;
+                }
+                else { // headers
+                    int split = headerLine.indexOf(": ");
+                    if (split >= 0) 
+                        headers.put(
+                            headerLine.substring(0, split),
+                            headerLine.substring(split+2)
+                            );
+                }
+            } while (!headerLine.equals(CRLF) && !headerLine.equals(""));
+
+            String response = null;
+
+            try {
+                
+                if (headers.containsKey("Content-length")) { // read POST data
+                    StringBuffer postBuffer = new StringBuffer();
+                    int received = 0; int length = Integer.parseInt((String)headers.get("Content-length"));
+                    try {
+                        while (received < length) {
+                            String postLine = request.readLine();
+                            postBuffer.append(postLine);
+                            received+=postLine.length();
+                        }
+                    } catch (IOException ex) {
+                        Logger.error("Error reading post data. "+received+" bytes of "+length+" received. ("+(received*100.0/length)+"%");
+                        Logger.error(ex);
+                        throw ex;
+                    }
+                }
+                // Got the params, generate response
+                
+                returnMIME = "text/xml";
+                statusCode = "200 OK";
+
+                response = processRequest();
+            } catch (Exception ex3) {
+                response = error("500 Server Error", ex3.getClass().getName()+"<br>"+ex3.getMessage());
+            }
+            System.out.println(new Date().toString()+" "+currentSocket.getInetAddress()+" "+method+" "+resource+" "+statusCode);
+
+            OutputStream output = currentSocket.getOutputStream();
+            
+            statusCode = "HTTP/1.0 "+statusCode+CRLF;
+            output.write(statusCode.getBytes());
+            
+            returnMIME = "Content-type: "+returnMIME+CRLF;
+            output.write(returnMIME.getBytes());
+            
+            String contentLength = "Content-Length: "+response.length()+CRLF;
+            output.write(contentLength.getBytes());
+            
+            // Possible: last mod?
+            // end of headers
+            output.write(CRLF.getBytes());
+            
+            // write the content
+            output.write(response.getBytes());
+            request.close();
+            output.close();
+            currentSocket.close();
+        } catch (IOException ex2) { 
+            Logger.error(ex2);
+        } // aborted connection probably
+        currentSocket = null;
+    }
+    
+    /* This is a dummy method that doesn't support anything.
+     * Override it.
+     */
+    
+    public String processRequest() {
+        return error("501 Not Implemented", "The method "+method+" you have requested is not supported by this server.");
+    }
+    
+    public String error(String code, String desc) {
+        statusCode = code;
+        returnMIME = "text/html";
+        return ("<HTML>" + 
+            "<HEAD><TITLE>"+code+"</TITLE></HEAD>" +
+            "<BODY><h1>"+code+"</h1>" +
+            "<p>"+desc+
+            "<hr><p><small>Cristal Item HTTP server</small></BODY></HTML>");
+    }
+}
+        
-- 
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