--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ch/ethz/ssh2/transport/HTTPProxyClientTransportManager.java	Thu Jul 31 16:33:38 2014 -0700
@@ -0,0 +1,103 @@
+package ch.ethz.ssh2.transport;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.LineNumberReader;
+import java.io.OutputStream;
+import java.net.InetSocketAddress;
+import java.net.Socket;
+
+import ch.ethz.ssh2.HTTPProxyData;
+import ch.ethz.ssh2.HTTPProxyException;
+import ch.ethz.ssh2.crypto.Base64;
+import ch.ethz.ssh2.util.StringEncoder;
+
+/**
+ * @version $Id: HTTPProxyClientTransportManager.java 155 2014-04-28 12:01:19Z dkocher@sudo.ch $
+ */
+public class HTTPProxyClientTransportManager extends ClientTransportManager {
+
+    /**
+     * Used to tell the library that the connection shall be established through a proxy server.
+     */
+
+    private HTTPProxyData pd;
+
+    private final Socket sock;
+
+    public HTTPProxyClientTransportManager(final Socket socket, final HTTPProxyData pd) {
+        super(socket);
+        this.sock = socket;
+        this.pd = pd;
+    }
+
+    @Override
+    protected void connect(final String hostname, final int port, final int connectTimeout) throws IOException {
+        sock.connect(new InetSocketAddress(pd.proxyHost, pd.proxyPort), connectTimeout);
+        // Tell the proxy where we actually want to connect to
+        StringBuilder sb = new StringBuilder();
+        sb.append("CONNECT ");
+        sb.append(hostname);
+        sb.append(':');
+        sb.append(port);
+        sb.append(" HTTP/1.0\r\n");
+
+        if ((pd.proxyUser != null) && (pd.proxyPass != null)) {
+            String credentials = pd.proxyUser + ":" + pd.proxyPass;
+            char[] encoded = Base64.encode(StringEncoder.GetBytes(credentials));
+            sb.append("Proxy-Authorization: Basic ");
+            sb.append(encoded);
+            sb.append("\r\n");
+        }
+
+        if (pd.requestHeaderLines != null) {
+            for (int i = 0; i < pd.requestHeaderLines.length; i++) {
+                if (pd.requestHeaderLines[i] != null) {
+                    sb.append(pd.requestHeaderLines[i]);
+                    sb.append("\r\n");
+                }
+            }
+        }
+
+        sb.append("\r\n");
+        OutputStream out = sock.getOutputStream();
+        out.write(StringEncoder.GetBytes(sb.toString()));
+        out.flush();
+        // Parse the HTTP response
+        InputStream in = sock.getInputStream();
+        final LineNumberReader reader = new LineNumberReader(new InputStreamReader(in));
+        String httpReponse = reader.readLine();
+
+        if (!httpReponse.startsWith("HTTP/")) {
+            throw new IOException("The proxy did not send back a valid HTTP response.");
+        }
+
+        // "HTTP/1.X XYZ X" => 14 characters minimum
+
+        if ((httpReponse.length() < 14) || (httpReponse.charAt(8) != ' ') || (httpReponse.charAt(12) != ' ')) {
+            throw new IOException("The proxy did not send back a valid HTTP response.");
+        }
+
+        int errorCode;
+
+        try {
+            errorCode = Integer.parseInt(httpReponse.substring(9, 12));
+        }
+        catch (NumberFormatException ignore) {
+            throw new IOException("The proxy did not send back a valid HTTP response.");
+        }
+
+        if ((errorCode < 0) || (errorCode > 999)) {
+            throw new IOException("The proxy did not send back a valid HTTP response.");
+        }
+
+        if (errorCode != 200) {
+            throw new HTTPProxyException(httpReponse.substring(13), errorCode);
+        }
+
+        while (reader.readLine() != null) {
+            // Read until empty line
+        }
+    }
+}