Shared TDE VNC library sources
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libtdevnc/webclients/java-applet/ssl/tightvnc-1.3dev7_javasrc-vn...

2600 lines
75 KiB

diff -Naur vnc_javasrc.orig/Makefile vnc_javasrc/Makefile
--- vnc_javasrc.orig/Makefile 2004-03-04 08:34:25.000000000 -0500
+++ vnc_javasrc/Makefile 2010-05-18 20:56:26.000000000 -0400
@@ -4,6 +4,7 @@
CP = cp
JC = javac
+JC_ARGS = -target 1.4 -source 1.4
JAR = jar
ARCHIVE = VncViewer.jar
MANIFEST = MANIFEST.MF
@@ -15,25 +16,29 @@
DesCipher.class CapabilityInfo.class CapsContainer.class \
RecordingFrame.class SessionRecorder.class AuthUnixLoginPanel.class \
SocketFactory.class HTTPConnectSocketFactory.class \
- HTTPConnectSocket.class ReloginPanel.class
+ HTTPConnectSocket.class ReloginPanel.class \
+ SSLSocketToMe.class
+
+SSL_CLASSES = SSLSocketToMe*.class TrustDialog.class
SOURCES = VncViewer.java RfbProto.java AuthPanel.java VncCanvas.java \
OptionsFrame.java ClipboardFrame.java ButtonPanel.java \
DesCipher.java CapabilityInfo.java CapsContainer.java \
RecordingFrame.java SessionRecorder.java AuthUnixLoginPanel.java \
SocketFactory.java HTTPConnectSocketFactory.java \
- HTTPConnectSocket.java ReloginPanel.java
+ HTTPConnectSocket.java ReloginPanel.java \
+ SSLSocketToMe.java
all: $(CLASSES) $(ARCHIVE)
$(CLASSES): $(SOURCES)
- $(JC) -target 1.1 -O $(SOURCES)
+ $(JC) $(JC_ARGS) -O $(SOURCES)
$(ARCHIVE): $(CLASSES) $(MANIFEST)
- $(JAR) cfm $(ARCHIVE) $(MANIFEST) $(CLASSES)
+ $(JAR) cfm $(ARCHIVE) $(MANIFEST) $(CLASSES) $(SSL_CLASSES)
install: $(CLASSES) $(ARCHIVE)
- $(CP) $(CLASSES) $(ARCHIVE) $(PAGES) $(INSTALL_DIR)
+ $(CP) $(CLASSES) $(SSL_CLASSES) $(ARCHIVE) $(PAGES) $(INSTALL_DIR)
export:: $(CLASSES) $(ARCHIVE) $(PAGES)
@$(ExportJavaClasses)
diff -Naur vnc_javasrc.orig/RfbProto.java vnc_javasrc/RfbProto.java
--- vnc_javasrc.orig/RfbProto.java 2004-03-04 08:34:25.000000000 -0500
+++ vnc_javasrc/RfbProto.java 2010-11-30 22:05:12.000000000 -0500
@@ -199,7 +199,21 @@
host = h;
port = p;
- if (viewer.socketFactory == null) {
+ if (! viewer.disableSSL) {
+ System.out.println("new SSLSocketToMe");
+ SSLSocketToMe ssl;
+ try {
+ ssl = new SSLSocketToMe(host, port, v);
+ } catch (Exception e) {
+ throw new IOException(e.getMessage());
+ }
+
+ try {
+ sock = ssl.connectSock();
+ } catch (Exception es) {
+ throw new IOException(es.getMessage());
+ }
+ } else if (viewer.socketFactory == null) {
sock = new Socket(host, port);
} else {
try {
@@ -255,7 +269,7 @@
|| (b[10] < '0') || (b[10] > '9') || (b[11] != '\n'))
{
throw new Exception("Host " + host + " port " + port +
- " is not an RFB server");
+ " is not an RFB server: " + b);
}
serverMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0');
@@ -892,6 +906,38 @@
final static int ALT_MASK = InputEvent.ALT_MASK;
+ void writeWheelEvent(MouseWheelEvent evt) throws IOException {
+
+ eventBufLen = 0;
+
+ int x = evt.getX();
+ int y = evt.getY();
+
+ if (x < 0) x = 0;
+ if (y < 0) y = 0;
+
+ int ptrmask;
+
+ int clicks = evt.getWheelRotation();
+ System.out.println("writeWheelEvent: clicks: " + clicks);
+ if (clicks > 0) {
+ ptrmask = 16;
+ } else if (clicks < 0) {
+ ptrmask = 8;
+ } else {
+ return;
+ }
+
+ eventBuf[eventBufLen++] = (byte) PointerEvent;
+ eventBuf[eventBufLen++] = (byte) ptrmask;
+ eventBuf[eventBufLen++] = (byte) ((x >> 8) & 0xff);
+ eventBuf[eventBufLen++] = (byte) (x & 0xff);
+ eventBuf[eventBufLen++] = (byte) ((y >> 8) & 0xff);
+ eventBuf[eventBufLen++] = (byte) (y & 0xff);
+
+ os.write(eventBuf, 0, eventBufLen);
+ }
+
//
// Write a pointer event message. We may need to send modifier key events
// around it to set the correct modifier state.
@@ -992,6 +1038,19 @@
boolean down = (evt.getID() == KeyEvent.KEY_PRESSED);
int key;
+ if (viewer.debugKeyboard) {
+ System.out.println("----------------------------------------");
+ System.out.println("evt.getKeyChar: " + evt.getKeyChar());
+ System.out.println("getKeyText: " + KeyEvent.getKeyText(evt.getKeyCode()));
+ System.out.println("evt.getKeyCode: " + evt.getKeyCode());
+ System.out.println("evt.getID: " + evt.getID());
+ System.out.println("evt.getKeyLocation: " + evt.getKeyLocation());
+ System.out.println("evt.isActionKey: " + evt.isActionKey());
+ System.out.println("evt.isControlDown: " + evt.isControlDown());
+ System.out.println("evt.getModifiers: " + evt.getModifiers());
+ System.out.println("getKeyModifiersText: " + KeyEvent.getKeyModifiersText(evt.getModifiers()));
+ System.out.println("evt.paramString: " + evt.paramString());
+ }
if (evt.isActionKey()) {
//
@@ -1025,6 +1084,13 @@
return;
}
+ if(key == 0xffc2 && viewer.mapF5_to_atsign) {
+ if (viewer.debugKeyboard) {
+ System.out.println("Mapping: F5 -> AT ");
+ }
+ key = 0x40;
+ }
+
} else {
//
@@ -1036,6 +1102,7 @@
key = keyChar;
+
if (key < 0x20) {
if (evt.isControlDown()) {
key += 0x60;
@@ -1121,6 +1188,16 @@
int oldModifiers = 0;
void writeModifierKeyEvents(int newModifiers) {
+ if(viewer.forbid_Ctrl_Alt) {
+ if ((newModifiers & CTRL_MASK) != 0 && (newModifiers & ALT_MASK) != 0) {
+ int orig = newModifiers;
+ newModifiers &= ~ALT_MASK;
+ newModifiers &= ~CTRL_MASK;
+ if (viewer.debugKeyboard) {
+ System.out.println("Ctrl+Alt modifiers: " + orig + " -> " + newModifiers);
+ }
+ }
+ }
if ((newModifiers & CTRL_MASK) != (oldModifiers & CTRL_MASK))
writeKeyEvent(0xffe3, (newModifiers & CTRL_MASK) != 0);
diff -Naur vnc_javasrc.orig/SSLSocketToMe.java vnc_javasrc/SSLSocketToMe.java
--- vnc_javasrc.orig/SSLSocketToMe.java 1969-12-31 19:00:00.000000000 -0500
+++ vnc_javasrc/SSLSocketToMe.java 2010-07-10 19:18:06.000000000 -0400
@@ -0,0 +1,2067 @@
+/*
+ * SSLSocketToMe.java: add SSL encryption to Java VNC Viewer.
+ *
+ * Copyright (c) 2006 Karl J. Runge <runge@karlrunge.com>
+ * All rights reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ *
+ */
+
+import java.net.*;
+import java.io.*;
+import javax.net.ssl.*;
+import java.util.*;
+
+import java.security.*;
+import java.security.cert.*;
+import java.security.spec.*;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateFactory;
+
+import java.awt.*;
+import java.awt.event.*;
+
+public class SSLSocketToMe {
+
+ /* basic member data: */
+ String host;
+ int port;
+ VncViewer viewer;
+
+ boolean debug = true;
+ boolean debug_certs = false;
+
+ /* sockets */
+ SSLSocket socket = null;
+ SSLSocketFactory factory;
+
+ /* fallback for Proxy connection */
+ boolean proxy_in_use = false;
+ boolean proxy_failure = false;
+ public DataInputStream is = null;
+ public OutputStream os = null;
+
+ /* strings from user WRT proxy: */
+ String proxy_auth_string = null;
+ String proxy_dialog_host = null;
+ int proxy_dialog_port = 0;
+
+ Socket proxySock;
+ DataInputStream proxy_is;
+ OutputStream proxy_os;
+
+ /* trust contexts */
+ SSLContext trustloc_ctx;
+ SSLContext trustall_ctx;
+ SSLContext trustsrv_ctx;
+ SSLContext trusturl_ctx;
+ SSLContext trustone_ctx;
+
+ /* corresponding trust managers */
+ TrustManager[] trustAllCerts;
+ TrustManager[] trustSrvCert;
+ TrustManager[] trustUrlCert;
+ TrustManager[] trustOneCert;
+
+ /* client-side SSL auth key (oneTimeKey=...) */
+ KeyManager[] mykey = null;
+
+ boolean user_wants_to_see_cert = true;
+ String cert_fail = null;
+
+ /* cert(s) we retrieve from Web server, VNC server, or serverCert param: */
+ java.security.cert.Certificate[] trustallCerts = null;
+ java.security.cert.Certificate[] trustsrvCerts = null;
+ java.security.cert.Certificate[] trusturlCerts = null;
+
+ /* utility to decode hex oneTimeKey=... and serverCert=... */
+ byte[] hex2bytes(String s) {
+ byte[] bytes = new byte[s.length()/2];
+ for (int i=0; i<s.length()/2; i++) {
+ int j = 2*i;
+ try {
+ int val = Integer.parseInt(s.substring(j, j+2), 16);
+ if (val > 127) {
+ val -= 256;
+ }
+ Integer I = new Integer(val);
+ bytes[i] = Byte.decode(I.toString()).byteValue();
+
+ } catch (Exception e) {
+ ;
+ }
+ }
+ return bytes;
+ }
+
+ SSLSocketToMe(String h, int p, VncViewer v) throws Exception {
+ host = h;
+ port = p;
+ viewer = v;
+
+ debug_certs = v.debugCerts;
+
+ /* we will first try default factory for certification: */
+
+ factory = (SSLSocketFactory) SSLSocketFactory.getDefault();
+
+ dbg("SSL startup: " + host + " " + port);
+
+
+ /* create trust managers to be used if initial handshake fails: */
+
+ trustAllCerts = new TrustManager[] {
+ /*
+ * this one accepts everything. Only used if user
+ * has disabled checking (trustAllVncCerts=yes)
+ * or when we grab the cert to show it to them in
+ * a dialog and ask them to manually verify/accept it.
+ */
+ new X509TrustManager() {
+ public java.security.cert.X509Certificate[]
+ getAcceptedIssuers() {
+ return null;
+ }
+ public void checkClientTrusted(
+ java.security.cert.X509Certificate[] certs,
+ String authType) {
+ /* empty */
+ }
+ public void checkServerTrusted(
+ java.security.cert.X509Certificate[] certs,
+ String authType) {
+ /* empty */
+ dbg("ALL: an untrusted connect to grab cert.");
+ }
+ }
+ };
+
+ trustUrlCert = new TrustManager[] {
+ /*
+ * this one accepts only the retrieved server
+ * cert by SSLSocket by this applet and stored in
+ * trusturlCerts.
+ */
+ new X509TrustManager() {
+ public java.security.cert.X509Certificate[]
+ getAcceptedIssuers() {
+ return null;
+ }
+ public void checkClientTrusted(
+ java.security.cert.X509Certificate[] certs,
+ String authType) throws CertificateException {
+ throw new CertificateException("No Clients (URL)");
+ }
+ public void checkServerTrusted(
+ java.security.cert.X509Certificate[] certs,
+ String authType) throws CertificateException {
+ /* we want to check 'certs' against 'trusturlCerts' */
+ if (trusturlCerts == null) {
+ throw new CertificateException(
+ "No Trust url Certs array.");
+ }
+ if (trusturlCerts.length < 1) {
+ throw new CertificateException(
+ "No Trust url Certs.");
+ }
+ if (certs == null) {
+ throw new CertificateException(
+ "No this-certs array.");
+ }
+ if (certs.length < 1) {
+ throw new CertificateException(
+ "No this-certs Certs.");
+ }
+ if (certs.length != trusturlCerts.length) {
+ throw new CertificateException(
+ "certs.length != trusturlCerts.length " + certs.length + " " + trusturlCerts.length);
+ }
+ boolean ok = true;
+ for (int i = 0; i < certs.length; i++) {
+ if (! trusturlCerts[i].equals(certs[i])) {
+ ok = false;
+ dbg("URL: cert mismatch at i=" + i);
+ dbg("URL: cert mismatch cert" + certs[i]);
+ dbg("URL: cert mismatch url" + trusturlCerts[i]);
+ if (cert_fail == null) {
+ cert_fail = "cert-mismatch";
+ }
+ }
+ if (debug_certs) {
+ dbg("\n***********************************************");
+ dbg("URL: cert info at i=" + i);
+ dbg("URL: cert info cert" + certs[i]);
+ dbg("===============================================");
+ dbg("URL: cert info url" + trusturlCerts[i]);
+ dbg("***********************************************");
+ }
+ }
+ if (!ok) {
+ throw new CertificateException(
+ "Server Cert Chain != URL Cert Chain.");
+ }
+ dbg("URL: trusturlCerts[i] matches certs[i] i=0:" + (certs.length-1));
+ }
+ }
+ };
+
+ trustSrvCert = new TrustManager[] {
+ /*
+ * this one accepts cert given to us in the serverCert
+ * Applet Parameter we were started with. It is
+ * currently a fatal error if the VNC Server's cert
+ * doesn't match it.
+ */
+ new X509TrustManager() {
+ public java.security.cert.X509Certificate[]
+ getAcceptedIssuers() {
+ return null;
+ }
+ public void checkClientTrusted(
+ java.security.cert.X509Certificate[] certs,
+ String authType) throws CertificateException {
+ throw new CertificateException("No Clients (SRV)");
+ }
+ public void checkServerTrusted(
+ java.security.cert.X509Certificate[] certs,
+ String authType) throws CertificateException {
+ /* we want to check 'certs' against 'trustsrvCerts' */
+ if (trustsrvCerts == null) {
+ throw new CertificateException(
+ "No Trust srv Certs array.");
+ }
+ if (trustsrvCerts.length < 1) {
+ throw new CertificateException(
+ "No Trust srv Certs.");
+ }
+ if (certs == null) {
+ throw new CertificateException(
+ "No this-certs array.");
+ }
+ if (certs.length < 1) {
+ throw new CertificateException(
+ "No this-certs Certs.");
+ }
+ if (certs.length != trustsrvCerts.length) {
+ throw new CertificateException(
+ "certs.length != trustsrvCerts.length " + certs.length + " " + trustsrvCerts.length);
+ }
+ boolean ok = true;
+ for (int i = 0; i < certs.length; i++) {
+ if (! trustsrvCerts[i].equals(certs[i])) {
+ ok = false;
+ dbg("SRV: cert mismatch at i=" + i);
+ dbg("SRV: cert mismatch cert" + certs[i]);
+ dbg("SRV: cert mismatch srv" + trustsrvCerts[i]);
+ if (cert_fail == null) {
+ cert_fail = "server-cert-mismatch";
+ }
+ }
+ if (debug_certs) {
+ dbg("\n***********************************************");
+ dbg("SRV: cert info at i=" + i);
+ dbg("SRV: cert info cert" + certs[i]);
+ dbg("===============================================");
+ dbg("SRV: cert info srv" + trustsrvCerts[i]);
+ dbg("***********************************************");
+ }
+ }
+ if (!ok) {
+ throw new CertificateException(
+ "Server Cert Chain != serverCert Applet Parameter Cert Chain.");
+ }
+ dbg("SRV: trustsrvCerts[i] matches certs[i] i=0:" + (certs.length-1));
+ }
+ }
+ };
+
+ trustOneCert = new TrustManager[] {
+ /*
+ * this one accepts only the retrieved server
+ * cert by SSLSocket by this applet we stored in
+ * trustallCerts that user has accepted or applet
+ * parameter trustAllVncCerts=yes is set. This is
+ * for when we reconnect after the user has manually
+ * accepted the trustall cert in the dialog (or set
+ * trustAllVncCerts=yes applet param.)
+ */
+ new X509TrustManager() {
+ public java.security.cert.X509Certificate[]
+ getAcceptedIssuers() {
+ return null;
+ }
+ public void checkClientTrusted(
+ java.security.cert.X509Certificate[] certs,
+ String authType) throws CertificateException {
+ throw new CertificateException("No Clients (ONE)");
+ }
+ public void checkServerTrusted(
+ java.security.cert.X509Certificate[] certs,
+ String authType) throws CertificateException {
+ /* we want to check 'certs' against 'trustallCerts' */
+ if (trustallCerts == null) {
+ throw new CertificateException(
+ "No Trust All Server Certs array.");
+ }
+ if (trustallCerts.length < 1) {
+ throw new CertificateException(
+ "No Trust All Server Certs.");
+ }
+ if (certs == null) {
+ throw new CertificateException(
+ "No this-certs array.");
+ }
+ if (certs.length < 1) {
+ throw new CertificateException(
+ "No this-certs Certs.");
+ }
+ if (certs.length != trustallCerts.length) {
+ throw new CertificateException(
+ "certs.length != trustallCerts.length " + certs.length + " " + trustallCerts.length);
+ }
+ boolean ok = true;
+ for (int i = 0; i < certs.length; i++) {
+ if (! trustallCerts[i].equals(certs[i])) {
+ ok = false;
+ dbg("ONE: cert mismatch at i=" + i);
+ dbg("ONE: cert mismatch cert" + certs[i]);
+ dbg("ONE: cert mismatch all" + trustallCerts[i]);
+ }
+ if (debug_certs) {
+ dbg("\n***********************************************");
+ dbg("ONE: cert info at i=" + i);
+ dbg("ONE: cert info cert" + certs[i]);
+ dbg("===============================================");
+ dbg("ONE: cert info all" + trustallCerts[i]);
+ dbg("***********************************************");
+ }
+ }
+ if (!ok) {
+ throw new CertificateException(
+ "Server Cert Chain != TRUSTALL Cert Chain.");
+ }
+ dbg("ONE: trustallCerts[i] matches certs[i] i=0:" + (certs.length-1));
+ }
+ }
+ };
+
+ /*
+ * The above TrustManagers are used:
+ *
+ * 1) to retrieve the server cert in case of failure to
+ * display it to the user in a dialog.
+ * 2) to subsequently connect to the server if user agrees.
+ */
+
+ /*
+ * build oneTimeKey cert+key if supplied in applet parameter:
+ */
+ if (viewer.oneTimeKey != null && viewer.oneTimeKey.equals("PROMPT")) {
+ ClientCertDialog d = new ClientCertDialog();
+ viewer.oneTimeKey = d.queryUser();
+ }
+ if (viewer.oneTimeKey != null && viewer.oneTimeKey.indexOf(",") > 0) {
+ int idx = viewer.oneTimeKey.indexOf(",");
+
+ String onetimekey = viewer.oneTimeKey.substring(0, idx);
+ byte[] key = hex2bytes(onetimekey);
+ String onetimecert = viewer.oneTimeKey.substring(idx+1);
+ byte[] cert = hex2bytes(onetimecert);
+
+ KeyFactory kf = KeyFactory.getInstance("RSA");
+ PKCS8EncodedKeySpec keysp = new PKCS8EncodedKeySpec ( key );
+ PrivateKey ff = kf.generatePrivate (keysp);
+ if (debug_certs) {
+ dbg("one time key " + ff);
+ }
+
+ CertificateFactory cf = CertificateFactory.getInstance("X.509");
+ Collection c = cf.generateCertificates(new ByteArrayInputStream(cert));
+ Certificate[] certs = new Certificate[c.toArray().length];
+ if (c.size() == 1) {
+ Certificate tmpcert = cf.generateCertificate(new ByteArrayInputStream(cert));
+ if (debug_certs) {
+ dbg("one time cert" + tmpcert);
+ }
+ certs[0] = tmpcert;
+ } else {
+ certs = (Certificate[]) c.toArray();
+ }
+
+ KeyStore ks = KeyStore.getInstance("JKS");
+ ks.load(null, null);
+ ks.setKeyEntry("onetimekey", ff, "".toCharArray(), certs);
+ String da = KeyManagerFactory.getDefaultAlgorithm();
+ KeyManagerFactory kmf = KeyManagerFactory.getInstance(da);
+ kmf.init(ks, "".toCharArray());
+
+ mykey = kmf.getKeyManagers();
+ }
+
+ /*
+ * build serverCert cert if supplied in applet parameter:
+ */
+ if (viewer.serverCert != null) {
+ CertificateFactory cf = CertificateFactory.getInstance("X.509");
+ byte[] cert = hex2bytes(viewer.serverCert);
+ Collection c = cf.generateCertificates(new ByteArrayInputStream(cert));
+ trustsrvCerts = new Certificate[c.toArray().length];
+ if (c.size() == 1) {
+ Certificate tmpcert = cf.generateCertificate(new ByteArrayInputStream(cert));
+ trustsrvCerts[0] = tmpcert;
+ } else {
+ trustsrvCerts = (Certificate[]) c.toArray();
+ }
+ }
+
+ /* the trust loc certs context: */
+ try {
+ trustloc_ctx = SSLContext.getInstance("SSL");
+
+ /*
+ * below is a failed attempt to get jvm's default
+ * trust manager using null (below) makes it so
+ * for HttpsURLConnection the server cannot be
+ * verified (no prompting.)
+ */
+ if (false) {
+ boolean didit = false;
+ TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+ tmf.init((KeyStore) null);
+ TrustManager [] tml = tmf.getTrustManagers();
+ for (int i = 0; i < tml.length; i++) {
+ TrustManager tm = tml[i];
+ if (tm instanceof X509TrustManager) {
+ TrustManager tm1[] = new TrustManager[1];
+ tm1[0] = tm;
+ trustloc_ctx.init(mykey, tm1, null);
+ didit = true;
+ break;
+ }
+ }
+ if (!didit) {
+ trustloc_ctx.init(mykey, null, null);
+ }
+ } else {
+ /* we have to set trust manager to null */
+ trustloc_ctx.init(mykey, null, null);
+ }
+
+ } catch (Exception e) {
+ String msg = "SSL trustloc_ctx FAILED.";
+ dbg(msg);
+ throw new Exception(msg);
+ }
+
+ /* the trust all certs context: */
+ try {
+ trustall_ctx = SSLContext.getInstance("SSL");
+ trustall_ctx.init(mykey, trustAllCerts, new
+ java.security.SecureRandom());
+
+ } catch (Exception e) {
+ String msg = "SSL trustall_ctx FAILED.";
+ dbg(msg);
+ throw new Exception(msg);
+ }
+
+ /* the trust url certs context: */
+ try {
+ trusturl_ctx = SSLContext.getInstance("SSL");
+ trusturl_ctx.init(mykey, trustUrlCert, new
+ java.security.SecureRandom());
+
+ } catch (Exception e) {
+ String msg = "SSL trusturl_ctx FAILED.";
+ dbg(msg);
+ throw new Exception(msg);
+ }
+
+ /* the trust srv certs context: */
+ try {
+ trustsrv_ctx = SSLContext.getInstance("SSL");
+ trustsrv_ctx.init(mykey, trustSrvCert, new
+ java.security.SecureRandom());
+
+ } catch (Exception e) {
+ String msg = "SSL trustsrv_ctx FAILED.";
+ dbg(msg);
+ throw new Exception(msg);
+ }
+
+ /* the trust the one cert from server context: */
+ try {
+ trustone_ctx = SSLContext.getInstance("SSL");
+ trustone_ctx.init(mykey, trustOneCert, new
+ java.security.SecureRandom());
+
+ } catch (Exception e) {
+ String msg = "SSL trustone_ctx FAILED.";
+ dbg(msg);
+ throw new Exception(msg);
+ }
+ }
+
+ /*
+ * we call this early on to 1) check for a proxy, 2) grab
+ * Browser/JVM accepted HTTPS cert.
+ */
+ public void check_for_proxy_and_grab_vnc_server_cert() {
+
+ trusturlCerts = null;
+ proxy_in_use = false;
+
+ if (viewer.ignoreProxy) {
+ /* applet param says skip it. */
+ /* the downside is we do not set trusturlCerts for comparison later... */
+ /* nor do we autodetect x11vnc for GET=1. */
+ return;
+ }
+
+ dbg("------------------------------------------------");
+ dbg("Into check_for_proxy_and_grab_vnc_server_cert():");
+
+ dbg("TRYING HTTPS:");
+ String ustr = "https://" + host + ":";
+ if (viewer.httpsPort != null) {
+ ustr += viewer.httpsPort;
+ } else {
+ ustr += port;
+ }
+ ustr += viewer.urlPrefix + "/check.https.proxy.connection";
+ dbg("ustr is: " + ustr);
+
+ try {
+ /* prepare for an HTTPS URL connection to host:port */
+ URL url = new URL(ustr);
+ HttpsURLConnection https = (HttpsURLConnection) url.openConnection();
+
+ if (mykey != null) {
+ /* with oneTimeKey (mykey) we can't use the default SSL context */
+ if (trustsrvCerts != null) {
+ dbg("passing trustsrv_ctx to HttpsURLConnection to provide client cert.");
+ https.setSSLSocketFactory(trustsrv_ctx.getSocketFactory());
+ } else if (trustloc_ctx != null) {
+ dbg("passing trustloc_ctx to HttpsURLConnection to provide client cert.");
+ https.setSSLSocketFactory(trustloc_ctx.getSocketFactory());
+ }
+ }
+
+ https.setUseCaches(false);
+ https.setRequestMethod("GET");
+ https.setRequestProperty("Pragma", "No-Cache");
+ https.setRequestProperty("Proxy-Connection", "Keep-Alive");
+ https.setDoInput(true);
+
+ dbg("trying https.connect()");
+ https.connect();
+
+ dbg("trying https.getServerCertificates()");
+ trusturlCerts = https.getServerCertificates();
+
+ if (trusturlCerts == null) {
+ dbg("set trusturlCerts to null!");
+ } else {
+ dbg("set trusturlCerts to non-null");
+ }
+
+ if (https.usingProxy()) {
+ proxy_in_use = true;
+ dbg("An HTTPS proxy is in use. There may be connection problems.");
+ }
+
+ dbg("trying https.getContent()");
+ Object output = https.getContent();
+ dbg("trying https.disconnect()");
+ https.disconnect();
+ if (! viewer.GET) {
+ String header = https.getHeaderField("VNC-Server");
+ if (header != null && header.startsWith("x11vnc")) {
+ dbg("detected x11vnc server (1), setting GET=1");
+ viewer.GET = true;
+ }
+ }
+
+ } catch(Exception e) {
+ dbg("HttpsURLConnection: " + e.getMessage());
+ }
+
+ if (proxy_in_use) {
+ dbg("exit check_for_proxy_and_grab_vnc_server_cert():");
+ dbg("------------------------------------------------");
+ return;
+ } else if (trusturlCerts != null && !viewer.forceProxy) {
+ /* Allow user to require HTTP check? use forceProxy for now. */
+ dbg("SKIPPING HTTP PROXY CHECK: got trusturlCerts, assuming proxy info is correct.");
+ dbg("exit check_for_proxy_and_grab_vnc_server_cert():");
+ dbg("------------------------------------------------");
+ return;
+ }
+
+ /*
+ * XXX need to remember scenario where this extra check
+ * gives useful info. User's Browser proxy settings?
+ */
+ dbg("TRYING HTTP:");
+ ustr = "http://" + host + ":" + port;
+ ustr += viewer.urlPrefix + "/index.vnc";
+ dbg("ustr is: " + ustr);
+
+ try {
+ /* prepare for an HTTP URL connection to the same host:port (but not httpsPort) */
+ URL url = new URL(ustr);
+ HttpURLConnection http = (HttpURLConnection)
+ url.openConnection();
+
+ http.setUseCaches(false);
+ http.setRequestMethod("GET");
+ http.setRequestProperty("Pragma", "No-Cache");
+ http.setRequestProperty("Proxy-Connection", "Keep-Alive");
+ http.setDoInput(true);
+
+ dbg("trying http.connect()");
+ http.connect();
+
+ if (http.usingProxy()) {
+ proxy_in_use = true;
+ dbg("An HTTP proxy is in use. There may be connection problems.");
+ }
+ dbg("trying http.getContent()");
+ Object output = http.getContent();
+ dbg("trying http.disconnect()");
+ http.disconnect();
+ if (! viewer.GET) {
+ String header = http.getHeaderField("VNC-Server");
+ if (header != null && header.startsWith("x11vnc")) {
+ dbg("detected x11vnc server (2), setting GET=1");
+ viewer.GET = true;
+ }
+ }
+ } catch(Exception e) {
+ dbg("HttpURLConnection: " + e.getMessage());
+ }
+ dbg("exit check_for_proxy_and_grab_vnc_server_cert():");
+ dbg("------------------------------------------------");
+ }
+
+ public Socket connectSock() throws IOException {
+ /*
+ * first try a https connection to detect a proxy, and
+ * grab the VNC server cert at the same time:
+ */
+ check_for_proxy_and_grab_vnc_server_cert();
+
+ boolean srv_cert = false;
+
+ if (trustsrvCerts != null) {
+ /* applet parameter suppled serverCert */
+ dbg("viewer.trustSrvCert-0 using trustsrv_ctx");
+ factory = trustsrv_ctx.getSocketFactory();
+ srv_cert = true;
+ } else if (viewer.trustAllVncCerts) {
+ /* trust all certs (no checking) */
+ dbg("viewer.trustAllVncCerts-0 using trustall_ctx");
+ factory = trustall_ctx.getSocketFactory();
+ } else if (trusturlCerts != null) {
+ /* trust certs the Browser/JVM accepted in check_for_proxy... */
+ dbg("using trusturl_ctx");
+ factory = trusturl_ctx.getSocketFactory();
+ } else {
+ /* trust the local defaults */
+ dbg("using trustloc_ctx");
+ factory = trustloc_ctx.getSocketFactory();
+ }
+
+ socket = null;
+
+ try {
+ if (proxy_in_use && viewer.forceProxy) {
+ throw new Exception("forcing proxy (forceProxy)");
+ } else if (viewer.CONNECT != null) {
+ throw new Exception("forcing CONNECT");
+ }
+
+ int timeout = 6;
+ if (timeout > 0) {
+ socket = (SSLSocket) factory.createSocket();
+ InetSocketAddress inetaddr = new InetSocketAddress(host, port);
+ dbg("Using timeout of " + timeout + " secs to: " + host + ":" + port);
+ socket.connect(inetaddr, timeout * 1000);
+ } else {
+ socket = (SSLSocket) factory.createSocket(host, port);
+ }
+
+ } catch (Exception esock) {
+ dbg("socket error: " + esock.getMessage());
+ if (proxy_in_use || viewer.CONNECT != null) {
+ proxy_failure = true;
+ if (proxy_in_use) {
+ dbg("HTTPS proxy in use. Trying to go with it.");
+ } else {
+ dbg("viewer.CONNECT reverse proxy in use. Trying to go with it.");
+ }
+ try {
+ socket = proxy_socket(factory);
+ } catch (Exception e) {
+ dbg("proxy_socket error: " + e.getMessage());
+ }
+ } else {
+ /* n.b. socket is left in error state to cause ex. below. */
+ }
+ }
+
+ try {
+ socket.startHandshake();
+
+ dbg("The Server Connection Verified OK on 1st try.");
+
+ java.security.cert.Certificate[] currentTrustedCerts;
+ BrowserCertsDialog bcd;
+
+ SSLSession sess = socket.getSession();
+ currentTrustedCerts = sess.getPeerCertificates();
+
+ if (viewer.trustAllVncCerts) {
+ dbg("viewer.trustAllVncCerts-1 keeping socket.");
+ } else if (currentTrustedCerts == null || currentTrustedCerts.length < 1) {
+ try {
+ socket.close();
+ } catch (Exception e) {
+ dbg("socket is grumpy.");
+ }
+ socket = null;
+ throw new SSLHandshakeException("no current certs");
+ }
+
+ String serv = "";
+ try {
+ CertInfo ci = new CertInfo(currentTrustedCerts[0]);
+ serv = ci.get_certinfo("CN");
+ } catch (Exception e) {
+ ;
+ }
+
+ if (viewer.trustAllVncCerts) {
+ dbg("viewer.trustAllVncCerts-2 skipping browser certs dialog");
+ user_wants_to_see_cert = false;
+ } else if (viewer.serverCert != null && trustsrvCerts != null) {
+ dbg("viewer.serverCert-1 skipping browser certs dialog");
+ user_wants_to_see_cert = false;
+ } else if (viewer.trustUrlVncCert) {
+ dbg("viewer.trustUrlVncCert-1 skipping browser certs dialog");
+ user_wants_to_see_cert = false;
+ } else {
+ /* have a dialog with the user: */
+ bcd = new BrowserCertsDialog(serv, host + ":" + port);
+ dbg("browser certs dialog begin.");
+ bcd.queryUser();
+ dbg("browser certs dialog finished.");
+
+ if (bcd.showCertDialog) {
+ String msg = "user wants to see cert";
+ dbg(msg);
+ user_wants_to_see_cert = true;
+ if (cert_fail == null) {
+ cert_fail = "user-view";
+ }
+ throw new SSLHandshakeException(msg);
+ } else {
+ user_wants_to_see_cert = false;
+ dbg("browser certs dialog: user said yes, accept it");
+ }
+ }
+
+ } catch (SSLHandshakeException eh) {
+ dbg("SSLHandshakeException: could not automatically verify Server.");
+ dbg("msg: " + eh.getMessage());
+
+
+ /* send a cleanup string just in case: */
+ String getoutstr = "GET /index.vnc HTTP/1.0\r\nConnection: close\r\n\r\n";
+
+ try {
+ OutputStream os = socket.getOutputStream();
+ os.write(getoutstr.getBytes());
+ socket.close();
+ } catch (Exception e) {
+ dbg("socket is grumpy!");
+ }
+
+ /* reload */
+
+ socket = null;
+
+ String reason = null;
+
+ if (srv_cert) {
+ /* for serverCert usage we make this a fatal error. */
+ throw new IOException("Fatal: VNC Server's Cert does not match Applet Parameter 'serverCert=...'");
+ /* see below in TrustDialog were we describe this case to user anyway */
+ }
+
+ /*
+ * Reconnect, trusting any cert, so we can grab
+ * the cert to show it to the user in a dialog
+ * for him to manually accept. This connection
+ * is not used for anything else.
+ */
+ factory = trustall_ctx.getSocketFactory();
+ if (proxy_failure) {
+ socket = proxy_socket(factory);
+ } else {
+ socket = (SSLSocket) factory.createSocket(host, port);
+ }
+
+ if (debug_certs) {
+ dbg("trusturlCerts: " + trusturlCerts);
+ dbg("trustsrvCerts: " + trustsrvCerts);
+ }
+ if (trusturlCerts == null && cert_fail == null) {
+ cert_fail = "missing-certs";
+ }
+
+ try {
+ socket.startHandshake();
+
+ dbg("The TrustAll Server Cert-grab Connection (trivially) Verified OK.");
+
+ /* grab the cert: */
+ try {
+ SSLSession sess = socket.getSession();
+ trustallCerts = sess.getPeerCertificates();
+ } catch (Exception e) {
+ throw new Exception("Could not get " +
+ "Peer Certificate");
+ }
+ if (debug_certs) {
+ dbg("trustallCerts: " + trustallCerts);
+ }
+
+ if (viewer.trustAllVncCerts) {
+ dbg("viewer.trustAllVncCerts-3. skipping dialog, trusting everything.");
+ } else if (! browser_cert_match()) {
+ /*
+ * close socket now, we will reopen after
+ * dialog if user agrees to use the cert.
+ */
+ try {
+ OutputStream os = socket.getOutputStream();
+ os.write(getoutstr.getBytes());
+ socket.close();
+ } catch (Exception e) {
+ dbg("socket is grumpy!!");
+ }
+ socket = null;
+
+ /* dialog with user to accept cert or not: */
+
+ TrustDialog td= new TrustDialog(host, port,
+ trustallCerts);
+
+ if (cert_fail == null) {
+ ;
+ } else if (cert_fail.equals("user-view")) {
+ reason = "Reason for this Dialog:\n\n"
+ + " You Asked to View the Certificate.";
+ } else if (cert_fail.equals("server-cert-mismatch")) {
+ /* this is now fatal error, see above. */
+ reason = "Reason for this Dialog:\n\n"
+ + " The VNC Server's Certificate does not match the Certificate\n"
+ + " specified in the supplied 'serverCert' Applet Parameter.";
+ } else if (cert_fail.equals("cert-mismatch")) {
+ reason = "Reason for this Dialog:\n\n"
+ + " The VNC Server's Certificate does not match the Website's\n"
+ + " HTTPS Certificate (that you previously accepted; either\n"
+ + " manually or automatically via Certificate Authority.)";
+ } else if (cert_fail.equals("missing-certs")) {
+ reason = "Reason for this Dialog:\n\n"
+ + " Not all Certificates could be obtained to check.";
+ }
+
+ if (! td.queryUser(reason)) {
+ String msg = "User decided against it.";
+ dbg(msg);
+ throw new IOException(msg);
+ }
+ }
+
+ } catch (Exception ehand2) {
+ dbg("** Could not TrustAll Verify Server!");
+
+ throw new IOException(ehand2.getMessage());
+ }
+
+ /* reload again: */
+
+ if (socket != null) {
+ try {
+ socket.close();
+ } catch (Exception e) {
+ dbg("socket is grumpy!!!");
+ }
+ socket = null;
+ }
+
+ /*
+ * Now connect a 3rd time, using the cert
+ * retrieved during connection 2 (sadly, that
+ * the user likely blindly agreed to...)
+ */
+
+ factory = trustone_ctx.getSocketFactory();
+ if (proxy_failure) {
+ socket = proxy_socket(factory);
+ } else {
+ socket = (SSLSocket) factory.createSocket(host, port);
+ }
+
+ try {
+ socket.startHandshake();
+ dbg("TrustAll/TrustOne Server Connection Verified #3.");
+
+ } catch (Exception ehand3) {
+ dbg("** Could not TrustAll/TrustOne Verify Server #3.");
+
+ throw new IOException(ehand3.getMessage());
+ }
+ }
+
+ /* we have socket (possibly null) at this point, so proceed: */
+
+ /* handle x11vnc GET=1, if applicable: */
+ if (socket != null && viewer.GET) {
+ String str = "GET ";
+ str += viewer.urlPrefix;
+ str += "/request.https.vnc.connection";
+ str += " HTTP/1.0\r\n";
+ str += "Pragma: No-Cache\r\n";
+ str += "\r\n";
+
+ System.out.println("sending: " + str);
+ OutputStream os = socket.getOutputStream();
+ String type = "os";
+
+ if (type == "os") {
+ os.write(str.getBytes());
+ os.flush();
+ System.out.println("used OutputStream");
+ } else if (type == "bs") {
+ BufferedOutputStream bs = new BufferedOutputStream(os);
+ bs.write(str.getBytes());
+ bs.flush();
+ System.out.println("used BufferedOutputStream");
+ } else if (type == "ds") {
+ DataOutputStream ds = new DataOutputStream(os);
+ ds.write(str.getBytes());
+ ds.flush();
+ System.out.println("used DataOutputStream");
+ }
+ if (false) {
+ String rep = "";
+ DataInputStream is = new DataInputStream(
+ new BufferedInputStream(socket.getInputStream(), 16384));
+ while (true) {
+ rep += readline(is);
+ if (rep.indexOf("\r\n\r\n") >= 0) {
+ break;
+ }
+ }
+ System.out.println("rep: " + rep);
+ }
+ }
+
+ dbg("SSL returning socket to caller.");
+ dbg("");
+
+ /* could be null, let caller handle that. */
+ return (Socket) socket;
+ }
+
+ boolean browser_cert_match() {
+ String msg = "Browser URL accept previously accepted cert";
+
+ if (user_wants_to_see_cert) {
+ return false;
+ }
+
+ if (viewer.serverCert != null || trustsrvCerts != null) {
+ if (cert_fail == null) {
+ cert_fail = "server-cert-mismatch";
+ }
+ }
+ if (trustallCerts != null && trusturlCerts != null) {
+ if (trustallCerts.length == trusturlCerts.length) {
+ boolean ok = true;
+ /* check toath trustallCerts (socket) equals trusturlCerts (browser) */
+ for (int i = 0; i < trusturlCerts.length; i++) {
+ if (! trustallCerts[i].equals(trusturlCerts[i])) {
+ dbg("BCM: cert mismatch at i=" + i);
+ dbg("BCM: cert mismatch url" + trusturlCerts[i]);
+ dbg("BCM: cert mismatch all" + trustallCerts[i]);
+ ok = false;
+ }
+ }
+ if (ok) {
+ System.out.println(msg);
+ if (cert_fail == null) {
+ cert_fail = "did-not-fail";
+ }
+ return true;
+ } else {
+ if (cert_fail == null) {
+ cert_fail = "cert-mismatch";
+ }
+ return false;
+ }
+ }
+ }
+ if (cert_fail == null) {
+ cert_fail = "missing-certs";
+ }
+ return false;
+ }
+
+ private void dbg(String s) {
+ if (debug) {
+ System.out.println(s);
+ }
+ }
+
+ private int gint(String s) {
+ int n = -1;
+ try {
+ Integer I = new Integer(s);
+ n = I.intValue();
+ } catch (Exception ex) {
+ return -1;
+ }
+ return n;
+ }
+
+ /* this will do the proxy CONNECT negotiation and hook us up. */
+
+ private void proxy_helper(String proxyHost, int proxyPort) {
+
+ boolean proxy_auth = false;
+ String proxy_auth_basic_realm = "";
+ String hp = host + ":" + port;
+ dbg("proxy_helper: " + proxyHost + ":" + proxyPort + " hp: " + hp);
+
+ /* we loop here a few times trying for the password case */
+ for (int k=0; k < 2; k++) {
+ dbg("proxy_in_use psocket: " + k);
+
+ if (proxySock != null) {
+ try {
+ proxySock.close();
+ } catch (Exception e) {
+ dbg("proxy socket is grumpy.");
+ }
+ }
+
+ proxySock = psocket(proxyHost, proxyPort);
+ if (proxySock == null) {
+ dbg("1-a sadly, returning a null socket");
+ return;
+ }
+
+ String req1 = "CONNECT " + hp + " HTTP/1.1\r\n"
+ + "Host: " + hp + "\r\n";
+
+ dbg("requesting via proxy: " + req1);
+
+ if (proxy_auth) {
+ if (proxy_auth_string == null) {
+ ProxyPasswdDialog pp = new ProxyPasswdDialog(proxyHost, proxyPort, proxy_auth_basic_realm);
+ pp.queryUser();
+ proxy_auth_string = pp.getAuth();
+ }
+ //dbg("auth1: " + proxy_auth_string);
+
+ String auth2 = Base64Coder.encodeString(proxy_auth_string);
+ //dbg("auth2: " + auth2);
+
+ req1 += "Proxy-Authorization: Basic " + auth2 + "\r\n";
+ //dbg("req1: " + req1);
+
+ dbg("added Proxy-Authorization: Basic ... to request");
+ }
+ req1 += "\r\n";
+
+ try {
+ proxy_os.write(req1.getBytes());
+ String reply = readline(proxy_is);
+
+ dbg("proxy replied: " + reply.trim());
+
+ if (reply.indexOf("HTTP/1.") == 0 && reply.indexOf(" 407 ") > 0) {
+ proxy_auth = true;
+ proxySock.close();
+ } else if (reply.indexOf("HTTP/1.") < 0 && reply.indexOf(" 200") < 0) {
+ proxySock.close();
+ proxySock = psocket(proxyHost, proxyPort);
+ if (proxySock == null) {
+ dbg("2-a sadly, returning a null socket");
+ return;
+ }
+ }
+ } catch(Exception e) {
+ dbg("some proxy socket problem: " + e.getMessage());
+ }
+
+ /* read the rest of the HTTP headers */
+ while (true) {
+ String line = readline(proxy_is);
+ dbg("proxy line: " + line.trim());
+ if (proxy_auth) {
+ String uc = line.toLowerCase();
+ if (uc.indexOf("proxy-authenticate:") == 0) {
+ if (uc.indexOf(" basic ") >= 0) {
+ int idx = uc.indexOf(" realm");
+ if (idx >= 0) {
+ proxy_auth_basic_realm = uc.substring(idx+1);
+ }
+ }
+ }
+ }
+ if (line.equals("\r\n") || line.equals("\n")) {
+ break;
+ }
+ }
+ if (!proxy_auth || proxy_auth_basic_realm.equals("")) {
+ /* we only try once for the non-password case: */
+ break;
+ }
+ }
+ }
+
+ public SSLSocket proxy_socket(SSLSocketFactory factory) {
+ Properties props = null;
+ String proxyHost = null;
+ int proxyPort = 0;
+ String proxyHost_nossl = null;
+ int proxyPort_nossl = 0;
+ String str;
+
+ /* see if we can guess the proxy info from Properties: */
+ try {
+ props = System.getProperties();
+ } catch (Exception e) {
+ /* sandboxed applet might not be able to read it. */
+ dbg("props failed: " + e.getMessage());
+ }
+ if (viewer.proxyHost != null) {
+ dbg("Using supplied proxy " + viewer.proxyHost + " " + viewer.proxyPort + " applet parameters.");
+ proxyHost = viewer.proxyHost;
+ if (viewer.proxyPort != null) {
+ proxyPort = gint(viewer.proxyPort);
+ } else {
+ proxyPort = 8080;
+ }
+
+ } else if (props != null) {
+ dbg("\n---------------\nAll props:");
+ props.list(System.out);
+ dbg("\n---------------\n\n");
+
+ /* scrape throught properties looking for proxy info: */
+
+ for (Enumeration e = props.propertyNames(); e.hasMoreElements(); ) {
+ String s = (String) e.nextElement();
+ String v = System.getProperty(s);
+ String s2 = s.toLowerCase();
+ String v2 = v.toLowerCase();
+
+ if (s2.indexOf("proxy.https.host") >= 0) {
+ proxyHost = v2;
+ continue;
+ }
+ if (s2.indexOf("proxy.https.port") >= 0) {
+ proxyPort = gint(v2);
+ continue;
+ }
+ if (s2.indexOf("proxy.http.host") >= 0) {
+ proxyHost_nossl = v2;
+ continue;
+ }
+ if (s2.indexOf("proxy.http.port") >= 0) {
+ proxyPort_nossl = gint(v2);
+ continue;
+ }
+ }
+
+ for (Enumeration e = props.propertyNames(); e.hasMoreElements(); ) {
+ String s = (String) e.nextElement();
+ String v = System.getProperty(s);
+ String s2 = s.toLowerCase();
+ String v2 = v.toLowerCase();
+
+ if (proxyHost != null && proxyPort > 0) {
+ break;
+ }
+
+ // look for something like: javaplugin.proxy.config.list = http=10.0.2.1:8082
+ if (s2.indexOf("proxy") < 0 && v2.indexOf("proxy") < 0) {
+ continue;
+ }
+ if (v2.indexOf("http") < 0) {
+ continue;
+ }
+
+ String[] pieces = v.split("[,;]");
+ for (int i = 0; i < pieces.length; i++) {
+ String p = pieces[i];
+ int j = p.indexOf("https");
+ if (j < 0) {
+ j = p.indexOf("http");
+ if (j < 0) {
+ continue;
+ }
+ }
+ j = p.indexOf("=", j);
+ if (j < 0) {
+ continue;
+ }
+ p = p.substring(j+1);
+ String [] hp = p.split(":");
+ if (hp.length != 2) {
+ continue;
+ }
+ if (hp[0].length() > 1 && hp[1].length() > 1) {
+
+ proxyPort = gint(hp[1]);
+ if (proxyPort < 0) {
+ continue;
+ }
+ proxyHost = new String(hp[0]);
+ break;
+ }
+ }
+ }
+ }
+ if (proxyHost != null) {
+ if (proxyHost_nossl != null && proxyPort_nossl > 0) {
+ dbg("Using http proxy info instead of https.");
+ proxyHost = proxyHost_nossl;
+ proxyPort = proxyPort_nossl;
+ }
+ }
+
+ if (proxy_in_use) {
+ if (proxy_dialog_host != null && proxy_dialog_port > 0) {
+ proxyHost = proxy_dialog_host;
+ proxyPort = proxy_dialog_port;
+ }
+ if (proxyHost != null) {
+ dbg("Lucky us! we figured out the Proxy parameters: " + proxyHost + " " + proxyPort);
+ } else {
+ /* ask user to help us: */
+ ProxyDialog pd = new ProxyDialog(proxyHost, proxyPort);
+ pd.queryUser();
+ proxyHost = pd.getHost();
+ proxyPort = pd.getPort();
+ proxy_dialog_host = new String(proxyHost);
+ proxy_dialog_port = proxyPort;
+ dbg("User said host: " + pd.getHost() + " port: " + pd.getPort());
+ }
+
+ proxy_helper(proxyHost, proxyPort);
+ if (proxySock == null) {
+ return null;
+ }
+ } else if (viewer.CONNECT != null) {
+ dbg("viewer.CONNECT psocket:");
+ proxySock = psocket(host, port);
+ if (proxySock == null) {
+ dbg("1-b sadly, returning a null socket");
+ return null;
+ }
+ }
+
+ if (viewer.CONNECT != null) {
+ String hp = viewer.CONNECT;
+ String req2 = "CONNECT " + hp + " HTTP/1.1\r\n"
+ + "Host: " + hp + "\r\n\r\n";
+
+ dbg("requesting2: " + req2);
+
+ try {
+ proxy_os.write(req2.getBytes());
+ String reply = readline(proxy_is);
+
+ dbg("proxy replied2: " + reply.trim());
+
+ if (reply.indexOf("HTTP/1.") < 0 && reply.indexOf(" 200") < 0) {
+ proxySock.close();
+ proxySock = psocket(proxyHost, proxyPort);
+ if (proxySock == null) {
+ dbg("2-b sadly, returning a null socket");
+ return null;
+ }
+ }
+ } catch(Exception e) {
+ dbg("proxy socket problem-2: " + e.getMessage());
+ }
+
+ while (true) {
+ String line = readline(proxy_is);
+ dbg("proxy line2: " + line.trim());
+ if (line.equals("\r\n") || line.equals("\n")) {
+ break;
+ }
+ }
+ }
+
+ Socket sslsock = null;
+ try {
+ sslsock = factory.createSocket(proxySock, host, port, true);
+ } catch(Exception e) {
+ dbg("sslsock prob: " + e.getMessage());
+ dbg("3 sadly, returning a null socket");
+ }
+
+ return (SSLSocket) sslsock;
+ }
+
+ Socket psocket(String h, int p) {
+ Socket psock = null;
+ try {
+ psock = new Socket(h, p);
+ proxy_is = new DataInputStream(new BufferedInputStream(
+ psock.getInputStream(), 16384));
+ proxy_os = psock.getOutputStream();
+ } catch(Exception e) {
+ dbg("psocket prob: " + e.getMessage());
+ return null;
+ }
+
+ return psock;
+ }
+
+ String readline(DataInputStream i) {
+ byte[] ba = new byte[1];
+ String s = new String("");
+ ba[0] = 0;
+ try {
+ while (ba[0] != 0xa) {
+ ba[0] = (byte) i.readUnsignedByte();
+ s += new String(ba);
+ }
+ } catch (Exception e) {
+ ;
+ }
+ return s;
+ }
+}
+
+class TrustDialog implements ActionListener {
+ String msg, host, text;
+ int port;
+ java.security.cert.Certificate[] trustallCerts = null;
+ boolean viewing_cert = false;
+ boolean trust_this_session = false;
+
+ /*
+ * this is the gui to show the user the cert and info and ask
+ * them if they want to continue using this cert.
+ */
+
+ Button ok, cancel, viewcert;
+ TextArea textarea;
+ Checkbox accept, deny;
+ Dialog dialog;
+
+ String s1 = "Accept this certificate temporarily for this session";
+ String s2 = "Do not accept this certificate and do not connect to"
+ + " this VNC server";
+ String ln = "\n---------------------------------------------------\n\n";
+
+ TrustDialog (String h, int p, java.security.cert.Certificate[] s) {
+ host = h;
+ port = p;
+ trustallCerts = s;
+
+ msg = "VNC Server " + host + ":" + port + " Not Verified";
+ }
+
+ public boolean queryUser(String reason) {
+
+ /* create and display the dialog for unverified cert. */
+
+ Frame frame = new Frame(msg);
+
+ dialog = new Dialog(frame, true);
+
+ String infostr = "";
+ if (trustallCerts.length == 1) {
+ CertInfo ci = new CertInfo(trustallCerts[0]);
+ infostr = ci.get_certinfo("all");
+ }
+ if (reason != null) {
+ reason += "\n\n";
+ }
+
+ text = "\n"
++ "Unable to verify the identity of\n"
++ "\n"
++ " " + host + ":" + port + "\n"
++ "\n"
++ infostr
++ "\n"
++ "as a trusted VNC server.\n"
++ "\n"
++ reason
++ "In General not being able to verify the VNC Server and/or your seeing this Dialog\n"
++ "is due to one of the following:\n"
++ "\n"
++ " - Your requesting to View the Certificate before accepting.\n"
++ "\n"
++ " - The VNC server is using a Self-Signed Certificate or a Certificate\n"
++ " Authority not recognized by your Web Browser or Java Plugin runtime.\n"
++ "\n"
++ " - The use of an Apache SSL portal scheme employing CONNECT proxying AND\n"
++ " the Apache Web server has a certificate *different* from the VNC server's.\n"
++ "\n"
++ " - No previously accepted Certificate (via Web Broswer/Java Plugin) could be\n"
++ " obtained by this applet to compare the VNC Server Certificate against.\n"
++ "\n"
++ " - The VNC Server's Certificate does not match the one specified in the\n"
++ " supplied 'serverCert' Java Applet Parameter.\n"
++ "\n"
++ " - A Man-In-The-Middle attack impersonating as the VNC server that you wish\n"
++ " to connect to. (Wouldn't that be exciting!!)\n"
++ "\n"
++ "By safely copying the VNC server's Certificate (or using a common Certificate\n"
++ "Authority certificate) you can configure your Web Browser and Java Plugin to\n"
++ "automatically authenticate this VNC Server.\n"
++ "\n"
++ "If you do so, then you will only have to click \"Yes\" when this VNC Viewer\n"
++ "applet asks you whether to trust your Browser/Java Plugin's acceptance of the\n"
++ "certificate (except for the Apache portal case above where they don't match.)\n"
++ "\n"
++ "You can also set the applet parameter 'trustUrlVncCert=yes' to automatically\n"
++ "accept certificates already accepted/trusted by your Web Browser/Java Plugin,\n"
++ "and thereby see no dialog from this VNC Viewer applet.\n"
+;
+
+ /* the accept / do-not-accept radio buttons: */
+ CheckboxGroup checkbox = new CheckboxGroup();
+ accept = new Checkbox(s1, true, checkbox);
+ deny = new Checkbox(s2, false, checkbox);
+
+ /* put the checkboxes in a panel: */
+ Panel check = new Panel();
+ check.setLayout(new GridLayout(2, 1));
+
+ check.add(accept);
+ check.add(deny);
+
+ /* make the 3 buttons: */
+ ok = new Button("OK");
+ cancel = new Button("Cancel");
+ viewcert = new Button("View Certificate");
+
+ ok.addActionListener(this);
+ cancel.addActionListener(this);
+ viewcert.addActionListener(this);
+
+ /* put the buttons in their own panel: */
+ Panel buttonrow = new Panel();
+ buttonrow.setLayout(new FlowLayout(FlowLayout.LEFT));
+ buttonrow.add(viewcert);
+ buttonrow.add(ok);
+ buttonrow.add(cancel);
+
+ /* label at the top: */
+ Label label = new Label(msg, Label.CENTER);
+ label.setFont(new Font("Helvetica", Font.BOLD, 16));
+
+ /* textarea in the middle */
+ textarea = new TextArea(text, 38, 64,
+ TextArea.SCROLLBARS_VERTICAL_ONLY);
+ textarea.setEditable(false);
+
+ /* put the two panels in their own panel at bottom: */
+ Panel bot = new Panel();
+ bot.setLayout(new GridLayout(2, 1));
+ bot.add(check);
+ bot.add(buttonrow);
+
+ /* now arrange things inside the dialog: */
+ dialog.setLayout(new BorderLayout());
+
+ dialog.add("North", label);
+ dialog.add("South", bot);
+ dialog.add("Center", textarea);
+
+ dialog.pack();
+ dialog.resize(dialog.preferredSize());
+
+ dialog.show(); /* block here til OK or Cancel pressed. */
+
+ return trust_this_session;
+ }
+
+ public synchronized void actionPerformed(ActionEvent evt) {
+
+ if (evt.getSource() == viewcert) {
+ /* View Certificate button clicked */
+ if (viewing_cert) {
+ /* show the original info text: */
+ textarea.setText(text);
+ viewcert.setLabel("View Certificate");
+ viewing_cert = false;
+ } else {
+ int i;
+ /* show all (likely just one) certs: */
+ textarea.setText("");
+ for (i=0; i < trustallCerts.length; i++) {
+ int j = i + 1;
+ textarea.append("Certificate[" +
+ j + "]\n\n");
+ textarea.append(
+ trustallCerts[i].toString());
+ textarea.append(ln);
+ }
+ viewcert.setLabel("View Info");
+ viewing_cert = true;
+
+ textarea.setCaretPosition(0);
+ }
+
+ } else if (evt.getSource() == ok) {
+ /* OK button clicked */
+ if (accept.getState()) {
+ trust_this_session = true;
+ } else {
+ trust_this_session = false;
+ }
+ //dialog.dispose();
+ dialog.hide();
+
+ } else if (evt.getSource() == cancel) {
+ /* Cancel button clicked */
+ trust_this_session = false;
+
+ //dialog.dispose();
+ dialog.hide();
+ }
+ }
+
+ String get_certinfo() {
+ String all = "";
+ String fields[] = {"CN", "OU", "O", "L", "C"};
+ int i;
+ if (trustallCerts.length < 1) {
+ all = "";
+ return all;
+ }
+ String cert = trustallCerts[0].toString();
+
+ /*
+ * For now we simply scrape the cert string, there must
+ * be an API for this... perhaps optionValue?
+ */
+
+ for (i=0; i < fields.length; i++) {
+ int f, t, t1, t2;
+ String sub, mat = fields[i] + "=";
+
+ f = cert.indexOf(mat, 0);
+ if (f > 0) {
+ t1 = cert.indexOf(", ", f);
+ t2 = cert.indexOf("\n", f);
+ if (t1 < 0 && t2 < 0) {
+ continue;
+ } else if (t1 < 0) {
+ t = t2;
+ } else if (t2 < 0) {
+ t = t1;
+ } else if (t1 < t2) {
+ t = t1;
+ } else {
+ t = t2;
+ }
+ if (t > f) {
+ sub = cert.substring(f, t);
+ all = all + " " + sub + "\n";
+ }
+ }
+ }
+ return all;
+ }
+}
+
+class ProxyDialog implements ActionListener {
+ String guessedHost = null;
+ String guessedPort = null;
+ /*
+ * this is the gui to show the user the cert and info and ask
+ * them if they want to continue using this cert.
+ */
+
+ Button ok;
+ Dialog dialog;
+ TextField entry;
+ String reply = "";
+
+ ProxyDialog (String h, int p) {
+ guessedHost = h;
+ try {
+ guessedPort = Integer.toString(p);
+ } catch (Exception e) {
+ guessedPort = "8080";
+ }
+ }
+
+ public void queryUser() {
+
+ /* create and display the dialog for unverified cert. */
+
+ Frame frame = new Frame("Need Proxy host:port");
+
+ dialog = new Dialog(frame, true);
+
+
+ Label label = new Label("Please Enter your https Proxy info as host:port", Label.CENTER);
+ //label.setFont(new Font("Helvetica", Font.BOLD, 16));
+ entry = new TextField(30);
+ ok = new Button("OK");
+ ok.addActionListener(this);
+
+ String guess = "";
+ if (guessedHost != null) {
+ guess = guessedHost + ":" + guessedPort;
+ }
+ entry.setText(guess);
+
+ dialog.setLayout(new BorderLayout());
+ dialog.add("North", label);
+ dialog.add("Center", entry);
+ dialog.add("South", ok);
+ dialog.pack();
+ dialog.resize(dialog.preferredSize());
+
+ dialog.show(); /* block here til OK or Cancel pressed. */
+ return;
+ }
+
+ public String getHost() {
+ int i = reply.indexOf(":");
+ if (i < 0) {
+ return "unknown";
+ }
+ String h = reply.substring(0, i);
+ return h;
+ }
+
+ public int getPort() {
+ int i = reply.indexOf(":");
+ int p = 8080;
+ if (i < 0) {
+ return p;
+ }
+ i++;
+ String ps = reply.substring(i);
+ try {
+ Integer I = new Integer(ps);
+ p = I.intValue();
+ } catch (Exception e) {
+ ;
+ }
+ return p;
+ }
+
+ public synchronized void actionPerformed(ActionEvent evt) {
+ System.out.println(evt.getActionCommand());
+ if (evt.getSource() == ok) {
+ reply = entry.getText();
+ //dialog.dispose();
+ dialog.hide();
+ }
+ }
+}
+
+class ProxyPasswdDialog implements ActionListener {
+ String guessedHost = null;
+ String guessedPort = null;
+ String guessedUser = null;
+ String guessedPasswd = null;
+ String realm = null;
+ /*
+ * this is the gui to show the user the cert and info and ask
+ * them if they want to continue using this cert.
+ */
+
+ Button ok;
+ Dialog dialog;
+ TextField entry1;
+ TextField entry2;
+ String reply1 = "";
+ String reply2 = "";
+
+ ProxyPasswdDialog (String h, int p, String realm) {
+ guessedHost = h;
+ try {
+ guessedPort = Integer.toString(p);
+ } catch (Exception e) {
+ guessedPort = "8080";
+ }
+ this.realm = realm;
+ }
+
+ public void queryUser() {
+
+ /* create and display the dialog for unverified cert. */
+
+ Frame frame = new Frame("Proxy Requires Username and Password");
+
+ dialog = new Dialog(frame, true);
+
+ //Label label = new Label("Please Enter your Web Proxy Username in the top Entry and Password in the bottom Entry", Label.CENTER);
+ TextArea label = new TextArea("Please Enter your Web Proxy\nUsername in the Top Entry and\nPassword in the Bottom Entry,\nand then press OK.", 4, 20, TextArea.SCROLLBARS_NONE);
+ entry1 = new TextField(30);
+ entry2 = new TextField(30);
+ entry2.setEchoChar('*');
+ ok = new Button("OK");
+ ok.addActionListener(this);
+
+ dialog.setLayout(new BorderLayout());
+ dialog.add("North", label);
+ dialog.add("Center", entry1);
+ dialog.add("South", entry2);
+ dialog.add("East", ok);
+ dialog.pack();
+ dialog.resize(dialog.preferredSize());
+
+ dialog.show(); /* block here til OK or Cancel pressed. */
+ return;
+ }
+
+ public String getAuth() {
+ return reply1 + ":" + reply2;
+ }
+
+ public synchronized void actionPerformed(ActionEvent evt) {
+ System.out.println(evt.getActionCommand());
+ if (evt.getSource() == ok) {
+ reply1 = entry1.getText();
+ reply2 = entry2.getText();
+ //dialog.dispose();
+ dialog.hide();
+ }
+ }
+}
+
+class ClientCertDialog implements ActionListener {
+
+ Button ok;
+ Dialog dialog;
+ TextField entry;
+ String reply = "";
+
+ ClientCertDialog() {
+ ;
+ }
+
+ public String queryUser() {
+
+ /* create and display the dialog for unverified cert. */
+
+ Frame frame = new Frame("Enter SSL Client Cert+Key String");
+
+ dialog = new Dialog(frame, true);
+
+
+ Label label = new Label("Please Enter the SSL Client Cert+Key String 308204c0...,...522d2d0a", Label.CENTER);
+ entry = new TextField(30);
+ ok = new Button("OK");
+ ok.addActionListener(this);
+
+ dialog.setLayout(new BorderLayout());
+ dialog.add("North", label);
+ dialog.add("Center", entry);
+ dialog.add("South", ok);
+ dialog.pack();
+ dialog.resize(dialog.preferredSize());
+
+ dialog.show(); /* block here til OK or Cancel pressed. */
+ return reply;
+ }
+
+ public synchronized void actionPerformed(ActionEvent evt) {
+ System.out.println(evt.getActionCommand());
+ if (evt.getSource() == ok) {
+ reply = entry.getText();
+ //dialog.dispose();
+ dialog.hide();
+ }
+ }
+}
+
+class BrowserCertsDialog implements ActionListener {
+ Button yes, no;
+ Dialog dialog;
+ String vncServer;
+ String hostport;
+ public boolean showCertDialog = true;
+
+ BrowserCertsDialog(String serv, String hp) {
+ vncServer = serv;
+ hostport = hp;
+ }
+
+ public void queryUser() {
+
+ /* create and display the dialog for unverified cert. */
+
+ Frame frame = new Frame("Use Browser/JVM Certs?");
+
+ dialog = new Dialog(frame, true);
+
+ String m = "";
+m += "\n";
+m += "This VNC Viewer applet does not have its own keystore to track\n";
+m += "SSL certificates, and so cannot authenticate the certificate\n";
+m += "of the VNC Server:\n";
+m += "\n";
+m += " " + hostport + "\n\n " + vncServer + "\n";
+m += "\n";
+m += "on its own.\n";
+m += "\n";
+m += "However, it has noticed that your Web Browser and/or Java VM Plugin\n";
+m += "has previously accepted the same certificate. You may have set\n";
+m += "this up permanently or just for this session, or the server\n";
+m += "certificate was signed by a CA cert that your Web Browser or\n";
+m += "Java VM Plugin has.\n";
+m += "\n";
+m += "If the VNC Server connection times out while you are reading this\n";
+m += "dialog, then restart the connection and try again.\n";
+m += "\n";
+m += "Should this VNC Viewer applet now connect to the above VNC server?\n";
+m += "\n";
+
+ TextArea textarea = new TextArea(m, 22, 64,
+ TextArea.SCROLLBARS_VERTICAL_ONLY);
+ textarea.setEditable(false);
+ yes = new Button("Yes");
+ yes.addActionListener(this);
+ no = new Button("No, Let Me See the Certificate.");
+ no.addActionListener(this);
+
+ dialog.setLayout(new BorderLayout());
+ dialog.add("North", textarea);
+ dialog.add("Center", yes);
+ dialog.add("South", no);
+ dialog.pack();
+ dialog.resize(dialog.preferredSize());
+
+ dialog.show(); /* block here til Yes or No pressed. */
+ System.out.println("done show()");
+ return;
+ }
+
+ public synchronized void actionPerformed(ActionEvent evt) {
+ System.out.println(evt.getActionCommand());
+ if (evt.getSource() == yes) {
+ showCertDialog = false;
+ //dialog.dispose();
+ dialog.hide();
+ } else if (evt.getSource() == no) {
+ showCertDialog = true;
+ //dialog.dispose();
+ dialog.hide();
+ }
+ System.out.println("done actionPerformed()");
+ }
+}
+
+class CertInfo {
+ String fields[] = {"CN", "OU", "O", "L", "C"};
+ java.security.cert.Certificate cert;
+ String certString = "";
+
+ CertInfo(java.security.cert.Certificate c) {
+ cert = c;
+ certString = cert.toString();
+ }
+
+ String get_certinfo(String which) {
+ int i;
+ String cs = new String(certString);
+ String all = "";
+
+ /*
+ * For now we simply scrape the cert string, there must
+ * be an API for this... perhaps optionValue?
+ */
+ for (i=0; i < fields.length; i++) {
+ int f, t, t1, t2;
+ String sub, mat = fields[i] + "=";
+
+ f = cs.indexOf(mat, 0);
+ if (f > 0) {
+ t1 = cs.indexOf(", ", f);
+ t2 = cs.indexOf("\n", f);
+ if (t1 < 0 && t2 < 0) {
+ continue;
+ } else if (t1 < 0) {
+ t = t2;
+ } else if (t2 < 0) {
+ t = t1;
+ } else if (t1 < t2) {
+ t = t1;
+ } else {
+ t = t2;
+ }
+ if (t > f) {
+ sub = cs.substring(f, t);
+ all = all + " " + sub + "\n";
+ if (which.equals(fields[i])) {
+ return sub;
+ }
+ }
+ }
+ }
+ if (which.equals("all")) {
+ return all;
+ } else {
+ return "";
+ }
+ }
+}
+
+class Base64Coder {
+
+ // Mapping table from 6-bit nibbles to Base64 characters.
+ private static char[] map1 = new char[64];
+ static {
+ int i=0;
+ for (char c='A'; c<='Z'; c++) map1[i++] = c;
+ for (char c='a'; c<='z'; c++) map1[i++] = c;
+ for (char c='0'; c<='9'; c++) map1[i++] = c;
+ map1[i++] = '+'; map1[i++] = '/'; }
+
+ // Mapping table from Base64 characters to 6-bit nibbles.
+ private static byte[] map2 = new byte[128];
+ static {
+ for (int i=0; i<map2.length; i++) map2[i] = -1;
+ for (int i=0; i<64; i++) map2[map1[i]] = (byte)i; }
+
+ /**
+ * Encodes a string into Base64 format.
+ * No blanks or line breaks are inserted.
+ * @param s a String to be encoded.
+ * @return A String with the Base64 encoded data.
+ */
+ public static String encodeString (String s) {
+ return new String(encode(s.getBytes())); }
+
+ /**
+ * Encodes a byte array into Base64 format.
+ * No blanks or line breaks are inserted.
+ * @param in an array containing the data bytes to be encoded.
+ * @return A character array with the Base64 encoded data.
+ */
+ public static char[] encode (byte[] in) {
+ return encode(in,in.length); }
+
+ /**
+ * Encodes a byte array into Base64 format.
+ * No blanks or line breaks are inserted.
+ * @param in an array containing the data bytes to be encoded.
+ * @param iLen number of bytes to process in <code>in</code>.
+ * @return A character array with the Base64 encoded data.
+ */
+ public static char[] encode (byte[] in, int iLen) {
+ int oDataLen = (iLen*4+2)/3; // output length without padding
+ int oLen = ((iLen+2)/3)*4; // output length including padding
+ char[] out = new char[oLen];
+ int ip = 0;
+ int op = 0;
+ while (ip < iLen) {
+ int i0 = in[ip++] & 0xff;
+ int i1 = ip < iLen ? in[ip++] & 0xff : 0;
+ int i2 = ip < iLen ? in[ip++] & 0xff : 0;
+ int o0 = i0 >>> 2;
+ int o1 = ((i0 & 3) << 4) | (i1 >>> 4);
+ int o2 = ((i1 & 0xf) << 2) | (i2 >>> 6);
+ int o3 = i2 & 0x3F;
+ out[op++] = map1[o0];
+ out[op++] = map1[o1];
+ out[op] = op < oDataLen ? map1[o2] : '='; op++;
+ out[op] = op < oDataLen ? map1[o3] : '='; op++; }
+ return out; }
+
+ /**
+ * Decodes a string from Base64 format.
+ * @param s a Base64 String to be decoded.
+ * @return A String containing the decoded data.
+ * @throws IllegalArgumentException if the input is not valid Base64 encoded data.
+ */
+ public static String decodeString (String s) {
+ return new String(decode(s)); }
+
+ /**
+ * Decodes a byte array from Base64 format.
+ * @param s a Base64 String to be decoded.
+ * @return An array containing the decoded data bytes.
+ * @throws IllegalArgumentException if the input is not valid Base64 encoded data.
+ */
+ public static byte[] decode (String s) {
+ return decode(s.toCharArray()); }
+
+ /**
+ * Decodes a byte array from Base64 format.
+ * No blanks or line breaks are allowed within the Base64 encoded data.
+ * @param in a character array containing the Base64 encoded data.
+ * @return An array containing the decoded data bytes.
+ * @throws IllegalArgumentException if the input is not valid Base64 encoded data.
+ */
+ public static byte[] decode (char[] in) {
+ int iLen = in.length;
+ if (iLen%4 != 0) throw new IllegalArgumentException ("Length of Base64 encoded input string is not a multiple of 4.");
+ while (iLen > 0 && in[iLen-1] == '=') iLen--;
+ int oLen = (iLen*3) / 4;
+ byte[] out = new byte[oLen];
+ int ip = 0;
+ int op = 0;
+ while (ip < iLen) {
+ int i0 = in[ip++];
+ int i1 = in[ip++];
+ int i2 = ip < iLen ? in[ip++] : 'A';
+ int i3 = ip < iLen ? in[ip++] : 'A';
+ if (i0 > 127 || i1 > 127 || i2 > 127 || i3 > 127)
+ throw new IllegalArgumentException ("Illegal character in Base64 encoded data.");
+ int b0 = map2[i0];
+ int b1 = map2[i1];
+ int b2 = map2[i2];
+ int b3 = map2[i3];
+ if (b0 < 0 || b1 < 0 || b2 < 0 || b3 < 0)
+ throw new IllegalArgumentException ("Illegal character in Base64 encoded data.");
+ int o0 = ( b0 <<2) | (b1>>>4);
+ int o1 = ((b1 & 0xf)<<4) | (b2>>>2);
+ int o2 = ((b2 & 3)<<6) | b3;
+ out[op++] = (byte)o0;
+ if (op<oLen) out[op++] = (byte)o1;
+ if (op<oLen) out[op++] = (byte)o2; }
+ return out; }
+
+ // Dummy constructor.
+ private Base64Coder() {}
+
+}
diff -Naur vnc_javasrc.orig/VncCanvas.java vnc_javasrc/VncCanvas.java
--- vnc_javasrc.orig/VncCanvas.java 2004-10-10 02:15:54.000000000 -0400
+++ vnc_javasrc/VncCanvas.java 2010-11-30 21:01:15.000000000 -0500
@@ -28,13 +28,14 @@
import java.lang.*;
import java.util.zip.*;
+import java.util.Collections;
//
// VncCanvas is a subclass of Canvas which draws a VNC desktop on it.
//
class VncCanvas extends Canvas
- implements KeyListener, MouseListener, MouseMotionListener {
+ implements KeyListener, MouseListener, MouseMotionListener, MouseWheelListener {
VncViewer viewer;
RfbProto rfb;
@@ -81,6 +82,20 @@
cm8 = new DirectColorModel(8, 7, (7 << 3), (3 << 6));
cm24 = new DirectColorModel(24, 0xFF0000, 0x00FF00, 0x0000FF);
+ // kludge to not show any Java cursor in the canvas since we are
+ // showing the soft cursor (should be a user setting...)
+ Cursor dot = Toolkit.getDefaultToolkit().createCustomCursor(
+ Toolkit.getDefaultToolkit().createImage(new byte[4]), new Point(0,0),
+ "dot");
+ this.setCursor(dot);
+
+ // while we are at it... get rid of the keyboard traversals that
+ // make it so we can't type a Tab character:
+ this.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
+ Collections.EMPTY_SET);
+ this.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
+ Collections.EMPTY_SET);
+
colors = new Color[256];
for (int i = 0; i < 256; i++)
colors[i] = new Color(cm8.getRGB(i));
@@ -169,6 +184,7 @@
inputEnabled = true;
addMouseListener(this);
addMouseMotionListener(this);
+ addMouseWheelListener(this);
if (viewer.showControls) {
viewer.buttonPanel.enableRemoteAccessControls(true);
}
@@ -177,6 +193,7 @@
inputEnabled = false;
removeMouseListener(this);
removeMouseMotionListener(this);
+ removeMouseWheelListener(this);
if (viewer.showControls) {
viewer.buttonPanel.enableRemoteAccessControls(false);
}
@@ -1190,6 +1207,9 @@
public void mouseDragged(MouseEvent evt) {
processLocalMouseEvent(evt, true);
}
+ public void mouseWheelMoved(MouseWheelEvent evt) {
+ processLocalMouseWheelEvent(evt);
+ }
public void processLocalKeyEvent(KeyEvent evt) {
if (viewer.rfb != null && rfb.inNormalProtocol) {
@@ -1221,6 +1241,19 @@
evt.consume();
}
+ public void processLocalMouseWheelEvent(MouseWheelEvent evt) {
+ if (viewer.rfb != null && rfb.inNormalProtocol) {
+ synchronized(rfb) {
+ try {
+ rfb.writeWheelEvent(evt);
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ rfb.notify();
+ }
+ }
+ }
+
public void processLocalMouseEvent(MouseEvent evt, boolean moved) {
if (viewer.rfb != null && rfb.inNormalProtocol) {
if (moved) {
@@ -1387,9 +1420,9 @@
result = cm8.getRGB(pixBuf[i]);
} else {
result = 0xFF000000 |
- (pixBuf[i * 4 + 1] & 0xFF) << 16 |
- (pixBuf[i * 4 + 2] & 0xFF) << 8 |
- (pixBuf[i * 4 + 3] & 0xFF);
+ (pixBuf[i * 4 + 2] & 0xFF) << 16 |
+ (pixBuf[i * 4 + 1] & 0xFF) << 8 |
+ (pixBuf[i * 4 + 0] & 0xFF);
}
} else {
result = 0; // Transparent pixel
@@ -1403,9 +1436,9 @@
result = cm8.getRGB(pixBuf[i]);
} else {
result = 0xFF000000 |
- (pixBuf[i * 4 + 1] & 0xFF) << 16 |
- (pixBuf[i * 4 + 2] & 0xFF) << 8 |
- (pixBuf[i * 4 + 3] & 0xFF);
+ (pixBuf[i * 4 + 2] & 0xFF) << 16 |
+ (pixBuf[i * 4 + 1] & 0xFF) << 8 |
+ (pixBuf[i * 4 + 0] & 0xFF);
}
} else {
result = 0; // Transparent pixel
diff -Naur vnc_javasrc.orig/VncViewer.java vnc_javasrc/VncViewer.java
--- vnc_javasrc.orig/VncViewer.java 2004-03-04 08:34:25.000000000 -0500
+++ vnc_javasrc/VncViewer.java 2010-03-27 17:57:04.000000000 -0400
@@ -29,6 +29,7 @@
import java.awt.event.*;
import java.io.*;
import java.net.*;
+import java.util.*;
public class VncViewer extends java.applet.Applet
implements java.lang.Runnable, WindowListener {
@@ -80,7 +81,7 @@
// Variables read from parameter values.
String socketFactory;
String host;
- int port;
+ int port, vncserverport;
boolean showControls;
boolean offerRelogin;
boolean showOfflineDesktop;
@@ -88,6 +89,24 @@
int deferCursorUpdates;
int deferUpdateRequests;
+ boolean disableSSL;
+ boolean GET;
+ String CONNECT;
+ String urlPrefix;
+ String httpsPort;
+ String oneTimeKey;
+ String serverCert;
+ String proxyHost;
+ String proxyPort;
+ boolean forceProxy;
+ boolean ignoreProxy;
+ boolean trustAllVncCerts;
+ boolean trustUrlVncCert;
+ boolean debugCerts;
+ boolean debugKeyboard;
+ boolean mapF5_to_atsign;
+ boolean forbid_Ctrl_Alt;
+
// Reference to this applet for inter-applet communication.
public static java.applet.Applet refApplet;
@@ -282,10 +301,24 @@
validate();
}
- while (!tryAuthenticate()) {
- authenticator.retry();
- authenticatorUnixLogin.retry();
- }
+ if (false) {
+ /* a bug on retries: 'Error: bad position: 8' sun.awt.X11.XTextFieldPeer.setCaretPosition(XTextFieldPeer.java:215) */
+ while (!tryAuthenticate()) {
+ authenticator.retry();
+ authenticatorUnixLogin.retry();
+ }
+ } else {
+ /* just try once and not forever... */
+ if (!tryAuthenticate()) {
+ showConnectionStatus("Authentication Failed.");
+ showMessage("Authentication Failed.");
+ if (!offerRelogin) {
+ fatalError("auth failed.");
+ }
+ } else {
+ //showConnectionStatus("Authentication OK.");
+ }
+ }
}
@@ -428,7 +461,10 @@
gbc.ipadx = 100;
gbc.ipady = 50;
gridbag.setConstraints(authPanel, gbc);
+ try {
vncContainer.add(authPanel);
+ } catch (Exception e) {
+ }
if (inSeparateFrame) {
vncFrame.pack();
@@ -590,9 +626,28 @@
fatalError("HOST parameter not specified");
}
}
+ Date d = new Date();
+ System.out.println("-\nSSL VNC Java Applet starting. " + d);
- String str = readParameter("PORT", true);
- port = Integer.parseInt(str);
+ port = 0;
+ String str = readParameter("PORT", false);
+ if (str != null) {
+ port = Integer.parseInt(str);
+ }
+ // When there is a proxy VNCSERVERPORT may be inaccessible (inside firewall).
+ vncserverport = 0;
+ str = readParameter("VNCSERVERPORT", false);
+ if (str != null) {
+ vncserverport = Integer.parseInt(str);
+ }
+ if (port == 0 && vncserverport == 0) {
+ fatalError("Neither PORT nor VNCSERVERPORT parameters specified");
+ }
+ if (port == 0) {
+ // Nevertheless, fall back to vncserverport if we have to.
+ System.out.println("using vncserverport: '" + vncserverport + "' for PORT.");
+ port = vncserverport;
+ }
if (inAnApplet) {
str = readParameter("Open New Window", false);
@@ -626,6 +681,121 @@
// SocketFactory.
socketFactory = readParameter("SocketFactory", false);
+
+ // SSL
+ disableSSL = false;
+ str = readParameter("DisableSSL", false);
+ if (str != null && str.equalsIgnoreCase("Yes"))
+ disableSSL = true;
+
+ httpsPort = readParameter("httpsPort", false);
+
+ // Extra GET, CONNECT string:
+ CONNECT = readParameter("CONNECT", false);
+ if (CONNECT != null) {
+ CONNECT = CONNECT.replaceAll(" ", ":");
+ }
+
+ GET = false;
+ str = readParameter("GET", false);
+ if (str != null && str.equalsIgnoreCase("Yes")) {
+ GET = true;
+ }
+ if (str != null && str.equalsIgnoreCase("1")) {
+ GET = true;
+ }
+
+ urlPrefix = readParameter("urlPrefix", false);
+ if (urlPrefix != null) {
+ urlPrefix = urlPrefix.replaceAll("%2F", "/");
+ urlPrefix = urlPrefix.replaceAll("%2f", "/");
+ urlPrefix = urlPrefix.replaceAll("_2F_", "/");
+ if (urlPrefix.indexOf("/") != 0) {
+ urlPrefix = "/" + urlPrefix;
+ }
+ } else {
+ urlPrefix = "";
+ }
+ System.out.println("urlPrefix: '" + urlPrefix + "'");
+
+ oneTimeKey = readParameter("oneTimeKey", false);
+ if (oneTimeKey != null) {
+ System.out.println("oneTimeKey is set.");
+ }
+
+ serverCert = readParameter("serverCert", false);
+ if (serverCert != null) {
+ System.out.println("serverCert is set.");
+ }
+
+ forceProxy = false;
+ proxyHost = null;
+ proxyPort = null;
+ str = readParameter("forceProxy", false);
+ if (str != null) {
+ if (str.equalsIgnoreCase("Yes")) {
+ forceProxy = true;
+ } else if (str.equalsIgnoreCase("No")) {
+ forceProxy = false;
+ } else {
+ forceProxy = true;
+ String[] pieces = str.split(" ");
+ proxyHost = new String(pieces[0]);
+ if (pieces.length >= 2) {
+ proxyPort = new String(pieces[1]);
+ } else {
+ proxyPort = new String("8080");
+ }
+ }
+ }
+ str = readParameter("proxyHost", false);
+ if (str != null) {
+ proxyHost = new String(str);
+ }
+ str = readParameter("proxyPort", false);
+ if (str != null) {
+ proxyPort = new String(str);
+ }
+ if (proxyHost != null && proxyPort == null) {
+ proxyPort = new String("8080");
+ }
+
+ ignoreProxy = false;
+ str = readParameter("ignoreProxy", false);
+ if (str != null && str.equalsIgnoreCase("Yes")) {
+ ignoreProxy = true;
+ }
+
+ trustAllVncCerts = false;
+ str = readParameter("trustAllVncCerts", false);
+ if (str != null && str.equalsIgnoreCase("Yes")) {
+ trustAllVncCerts = true;
+ }
+ trustUrlVncCert = false;
+ str = readParameter("trustUrlVncCert", false);
+ if (str != null && str.equalsIgnoreCase("Yes")) {
+ trustUrlVncCert = true;
+ }
+ debugCerts = false;
+ str = readParameter("debugCerts", false);
+ if (str != null && str.equalsIgnoreCase("Yes")) {
+ debugCerts = true;
+ }
+ debugKeyboard = false;
+ str = readParameter("debugKeyboard", false);
+ if (str != null && str.equalsIgnoreCase("Yes")) {
+ debugKeyboard = true;
+ }
+ mapF5_to_atsign = false;
+ str = readParameter("mapF5_to_atsign", false);
+ if (str != null && str.equalsIgnoreCase("Yes")) {
+ mapF5_to_atsign = true;
+ }
+ forbid_Ctrl_Alt = false;
+ str = readParameter("forbid_Ctrl_Alt", false);
+ if (str != null && str.equalsIgnoreCase("Yes")) {
+ forbid_Ctrl_Alt = true;
+ }
}
public String readParameter(String name, boolean required) {