From 2f73ef1dda56ba7ae588091e0c0e8f71c02bbf32 Mon Sep 17 00:00:00 2001
From: Arne Schwabe <arne@rfc2549.org>
Date: Mon, 30 Apr 2012 02:53:12 +0200
Subject: version 0.4.2

---
 src/de/blinkt/openvpn/OpenVpnManagementThread.java | 140 +++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 src/de/blinkt/openvpn/OpenVpnManagementThread.java

(limited to 'src/de/blinkt/openvpn/OpenVpnManagementThread.java')

diff --git a/src/de/blinkt/openvpn/OpenVpnManagementThread.java b/src/de/blinkt/openvpn/OpenVpnManagementThread.java
new file mode 100644
index 00000000..00d8fe9b
--- /dev/null
+++ b/src/de/blinkt/openvpn/OpenVpnManagementThread.java
@@ -0,0 +1,140 @@
+package de.blinkt.openvpn;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import android.net.LocalSocket;
+import android.util.Log;
+
+public class OpenVpnManagementThread implements Runnable {
+
+	private static final String TAG = "openvpn";
+	private LocalSocket mSocket;
+	private VpnProfile mProfile;
+
+	public OpenVpnManagementThread(VpnProfile profile, LocalSocket mgmtsocket) {
+		mProfile = profile;
+		mSocket = mgmtsocket;
+	}
+
+
+	private String managmentEscape(String unescape) {
+		String escapedString = unescape.replace("\\", "\\\\");
+		escapedString = escapedString.replace("\"","\\\"");
+		escapedString = escapedString.replace("\n","\\n");
+		return '"' + escapedString + '"';
+	}
+
+
+	public void managmentCommand(String cmd) {
+		try {
+			mSocket.getOutputStream().write(cmd.getBytes());
+			mSocket.getOutputStream().flush();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+
+
+	@Override
+	public void run() {
+		Log.i(TAG, "Managment Socket Thread started");
+		byte [] buffer  =new byte[2048];
+	//	mSocket.setSoTimeout(5); // Setting a timeout cannot be that bad
+		InputStream instream = null;
+		try {
+			instream = mSocket.getInputStream();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		String pendingInput="";
+		
+		try {
+
+			while(true) {
+			int numbytesread = instream.read(buffer);
+			if(numbytesread==-1)
+				return;
+			
+			String input = new String(buffer,0,numbytesread,"UTF-8");
+			
+			pendingInput += input;
+			
+			pendingInput=processInput(pendingInput);
+			
+			
+			
+		}
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+
+
+	private String processInput(String pendingInput) {
+		while(pendingInput.contains("\n")) {
+			String[] tokens = pendingInput.split("\\r?\\n", 2);
+			processCommand(tokens[0]);
+			if(tokens.length == 1)
+				// No second part, newline was at the end
+				pendingInput="";
+			else
+				pendingInput=tokens[1];
+		}
+		return pendingInput;
+	}
+
+
+	private void processCommand(String command) {
+		if (command.startsWith(">") && command.contains(":")) {
+			String[] parts = command.split(":",2);
+			String cmd = parts[0].substring(1);
+			String argument = parts[1];
+
+
+			if(cmd.equals("INFO"))
+				logStatusMessage(command);
+			else if (cmd.equals("PASSWORD")) {
+				processPWCommand(argument);
+			} else if (cmd.equals("HOLD")) {
+				managmentCommand("hold release\n");
+			}
+		}
+        Log.i(TAG, "Got unrecognized command" + command);
+
+	}
+
+
+	private void processPWCommand(String argument) {
+		//argument has the form 	Need 'Private Key' password
+		int p1 =argument.indexOf('\'');
+		int p2 = argument.indexOf('\'',p1+1);
+		//String needed = argument.replace("Need '", "").replace("' password", "");
+		String needed = argument.substring(p1+1, p2);
+		
+		String pw=null;
+		
+		if(needed.equals("Private Key")) {
+			pw = mProfile.getPasswordPrivateKey();
+		} else if (needed.equals("Auth")) {
+			String usercmd = String.format("username '%s' %s\n", 
+					needed, managmentEscape(mProfile.mUsername));
+			managmentCommand(usercmd);
+			pw = mProfile.getPasswordAuth();
+		}
+		if(pw!=null) {
+			String cmd = String.format("password '%s' %s\n", needed, managmentEscape(pw));
+			managmentCommand(cmd);
+		}
+		
+	}
+
+
+
+
+	private void logStatusMessage(String command) {
+		// TODO Auto-generated method stub
+		
+	}
+
+}
-- 
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