--- a/jdk/src/java.rmi/share/classes/sun/rmi/transport/proxy/CGIHandler.java Sat May 14 08:03:03 2016 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,423 +0,0 @@
-/*
- * Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-package sun.rmi.transport.proxy;
-
-import java.io.*;
-import java.net.*;
-import java.util.Hashtable;
-
-/**
- * CGIClientException is thrown when an error is detected
- * in a client's request.
- */
-class CGIClientException extends Exception {
- private static final long serialVersionUID = 8147981687059865216L;
-
- public CGIClientException(String s) {
- super(s);
- }
-
- public CGIClientException(String s, Throwable cause) {
- super(s, cause);
- }
-}
-
-/**
- * CGIServerException is thrown when an error occurs here on the server.
- */
-class CGIServerException extends Exception {
-
- private static final long serialVersionUID = 6928425456704527017L;
-
- public CGIServerException(String s) {
- super(s);
- }
-
- public CGIServerException(String s, Throwable cause) {
- super(s, cause);
- }
-}
-
-/**
- * CGICommandHandler is the interface to an object that handles a
- * particular supported command.
- */
-interface CGICommandHandler {
-
- /**
- * Return the string form of the command
- * to be recognized in the query string.
- */
- public String getName();
-
- /**
- * Execute the command with the given string as parameter.
- */
- public void execute(String param) throws CGIClientException, CGIServerException;
-}
-
-/**
- * The CGIHandler class contains methods for executing as a CGI program.
- * The main function interprets the query string as a command of the form
- * "{@code <command>=<parameters>}".
- *
- * This class depends on the CGI 1.0 environment variables being set as
- * properties of the same name in this Java VM.
- *
- * All data and methods of this class are static because they are specific
- * to this particular CGI process.
- */
-public final class CGIHandler {
-
- /* get CGI parameters that we need */
- static int ContentLength;
- static String QueryString;
- static String RequestMethod;
- static String ServerName;
- static int ServerPort;
-
- static {
- java.security.AccessController.doPrivileged(
- new java.security.PrivilegedAction<Void>() {
- public Void run() {
- ContentLength =
- Integer.getInteger("CONTENT_LENGTH", 0).intValue();
- QueryString = System.getProperty("QUERY_STRING", "");
- RequestMethod = System.getProperty("REQUEST_METHOD", "");
- ServerName = System.getProperty("SERVER_NAME", "");
- ServerPort = Integer.getInteger("SERVER_PORT", 0).intValue();
- return null;
- }
- });
- }
-
- /* list of handlers for supported commands */
- private static CGICommandHandler commands[] = {
- new CGIForwardCommand(),
- new CGIGethostnameCommand(),
- new CGIPingCommand(),
- new CGITryHostnameCommand()
- };
-
- /* construct table mapping command strings to handlers */
- private static Hashtable<String, CGICommandHandler> commandLookup;
- static {
- commandLookup = new Hashtable<>();
- for (int i = 0; i < commands.length; ++ i)
- commandLookup.put(commands[i].getName(), commands[i]);
- }
-
- /* prevent instantiation of this class */
- private CGIHandler() {}
-
- /**
- * Execute command given in query string on URL. The string before
- * the first '=' is interpreted as the command name, and the string
- * after the first '=' is the parameters to the command.
- */
- public static void main(String args[])
- {
- try {
- String command, param;
- int delim = QueryString.indexOf('=');
- if (delim == -1) {
- command = QueryString;
- param = "";
- }
- else {
- command = QueryString.substring(0, delim);
- param = QueryString.substring(delim + 1);
- }
- CGICommandHandler handler =
- commandLookup.get(command);
- if (handler != null)
- try {
- handler.execute(param);
- } catch (CGIClientException e) {
- e.printStackTrace();
- returnClientError(e.getMessage());
- } catch (CGIServerException e) {
- e.printStackTrace();
- returnServerError(e.getMessage());
- }
- else
- returnClientError("invalid command.");
- } catch (Exception e) {
- e.printStackTrace();
- returnServerError("internal error: " + e.getMessage());
- }
- System.exit(0);
- }
-
- /**
- * Return an HTML error message indicating there was error in
- * the client's request.
- */
- private static void returnClientError(String message)
- {
- System.out.println("Status: 400 Bad Request: " + message);
- System.out.println("Content-type: text/html");
- System.out.println("");
- System.out.println("<HTML>" +
- "<HEAD><TITLE>Java RMI Client Error" +
- "</TITLE></HEAD>" +
- "<BODY>");
- System.out.println("<H1>Java RMI Client Error</H1>");
- System.out.println("");
- System.out.println(message);
- System.out.println("</BODY></HTML>");
- System.exit(1);
- }
-
- /**
- * Return an HTML error message indicating an error occurred
- * here on the server.
- */
- private static void returnServerError(String message)
- {
- System.out.println("Status: 500 Server Error: " + message);
- System.out.println("Content-type: text/html");
- System.out.println("");
- System.out.println("<HTML>" +
- "<HEAD><TITLE>Java RMI Server Error" +
- "</TITLE></HEAD>" +
- "<BODY>");
- System.out.println("<H1>Java RMI Server Error</H1>");
- System.out.println("");
- System.out.println(message);
- System.out.println("</BODY></HTML>");
- System.exit(1);
- }
-}
-
-/**
- * "forward" command: Forward request body to local port on the server,
- * and send response back to client.
- */
-final class CGIForwardCommand implements CGICommandHandler {
-
- public String getName() {
- return "forward";
- }
-
- @SuppressWarnings("deprecation")
- private String getLine (DataInputStream socketIn) throws IOException {
- return socketIn.readLine();
- }
-
- public void execute(String param) throws CGIClientException, CGIServerException
- {
- if (!CGIHandler.RequestMethod.equals("POST"))
- throw new CGIClientException("can only forward POST requests");
-
- int port;
- try {
- port = Integer.parseInt(param);
- } catch (NumberFormatException e) {
- throw new CGIClientException("invalid port number.", e);
- }
- if (port <= 0 || port > 0xFFFF)
- throw new CGIClientException("invalid port: " + port);
- if (port < 1024)
- throw new CGIClientException("permission denied for port: " +
- port);
-
- byte buffer[];
- Socket socket;
- try {
- socket = new Socket(InetAddress.getLocalHost(), port);
- } catch (IOException e) {
- throw new CGIServerException("could not connect to local port", e);
- }
-
- /*
- * read client's request body
- */
- DataInputStream clientIn = new DataInputStream(System.in);
- buffer = new byte[CGIHandler.ContentLength];
- try {
- clientIn.readFully(buffer);
- } catch (EOFException e) {
- throw new CGIClientException("unexpected EOF reading request body", e);
- } catch (IOException e) {
- throw new CGIClientException("error reading request body", e);
- }
-
- /*
- * send to local server in HTTP
- */
- try {
- DataOutputStream socketOut =
- new DataOutputStream(socket.getOutputStream());
- socketOut.writeBytes("POST / HTTP/1.0\r\n");
- socketOut.writeBytes("Content-length: " +
- CGIHandler.ContentLength + "\r\n\r\n");
- socketOut.write(buffer);
- socketOut.flush();
- } catch (IOException e) {
- throw new CGIServerException("error writing to server", e);
- }
-
- /*
- * read response
- */
- DataInputStream socketIn;
- try {
- socketIn = new DataInputStream(socket.getInputStream());
- } catch (IOException e) {
- throw new CGIServerException("error reading from server", e);
- }
- String key = "Content-length:".toLowerCase();
- boolean contentLengthFound = false;
- String line;
- int responseContentLength = -1;
- do {
- try {
- line = getLine(socketIn);
- } catch (IOException e) {
- throw new CGIServerException("error reading from server", e);
- }
- if (line == null)
- throw new CGIServerException(
- "unexpected EOF reading server response");
-
- if (line.toLowerCase().startsWith(key)) {
- if (contentLengthFound) {
- throw new CGIServerException(
- "Multiple Content-length entries found.");
- } else {
- responseContentLength =
- Integer.parseInt(line.substring(key.length()).trim());
- contentLengthFound = true;
- }
- }
- } while ((line.length() != 0) &&
- (line.charAt(0) != '\r') && (line.charAt(0) != '\n'));
-
- if (!contentLengthFound || responseContentLength < 0)
- throw new CGIServerException(
- "missing or invalid content length in server response");
- buffer = new byte[responseContentLength];
- try {
- socketIn.readFully(buffer);
- } catch (EOFException e) {
- throw new CGIServerException(
- "unexpected EOF reading server response", e);
- } catch (IOException e) {
- throw new CGIServerException("error reading from server", e);
- }
-
- /*
- * send response back to client
- */
- System.out.println("Status: 200 OK");
- System.out.println("Content-type: application/octet-stream");
- System.out.println("");
- try {
- System.out.write(buffer);
- } catch (IOException e) {
- throw new CGIServerException("error writing response", e);
- }
- System.out.flush();
- }
-}
-
-/**
- * "gethostname" command: Return the host name of the server as the
- * response body
- */
-final class CGIGethostnameCommand implements CGICommandHandler {
-
- public String getName() {
- return "gethostname";
- }
-
- public void execute(String param)
- {
- System.out.println("Status: 200 OK");
- System.out.println("Content-type: application/octet-stream");
- System.out.println("Content-length: " +
- CGIHandler.ServerName.length());
- System.out.println("");
- System.out.print(CGIHandler.ServerName);
- System.out.flush();
- }
-}
-
-/**
- * "ping" command: Return an OK status to indicate that connection
- * was successful.
- */
-final class CGIPingCommand implements CGICommandHandler {
-
- public String getName() {
- return "ping";
- }
-
- public void execute(String param)
- {
- System.out.println("Status: 200 OK");
- System.out.println("Content-type: application/octet-stream");
- System.out.println("Content-length: 0");
- System.out.println("");
- }
-}
-
-/**
- * "tryhostname" command: Return a human readable message describing
- * what host name is available to local Java VMs.
- */
-final class CGITryHostnameCommand implements CGICommandHandler {
-
- public String getName() {
- return "tryhostname";
- }
-
- public void execute(String param)
- {
- System.out.println("Status: 200 OK");
- System.out.println("Content-type: text/html");
- System.out.println("");
- System.out.println("<HTML>" +
- "<HEAD><TITLE>Java RMI Server Hostname Info" +
- "</TITLE></HEAD>" +
- "<BODY>");
- System.out.println("<H1>Java RMI Server Hostname Info</H1>");
- System.out.println("<H2>Local host name available to Java VM:</H2>");
- System.out.print("<P>InetAddress.getLocalHost().getHostName()");
- try {
- String localHostName = InetAddress.getLocalHost().getHostName();
-
- System.out.println(" = " + localHostName);
- } catch (UnknownHostException e) {
- System.out.println(" threw java.net.UnknownHostException");
- }
-
- System.out.println("<H2>Server host information obtained through CGI interface from HTTP server:</H2>");
- System.out.println("<P>SERVER_NAME = " + CGIHandler.ServerName);
- System.out.println("<P>SERVER_PORT = " + CGIHandler.ServerPort);
- System.out.println("</BODY></HTML>");
- }
-}