From f5854d238e4c8aecb5370e56301bd43015ad8ba9 Mon Sep 17 00:00:00 2001 From: Christian Schneppe Date: Mon, 12 Mar 2018 20:58:37 +0100 Subject: integrate trust manager into conversations --- .../de/duenndns/ssl/MemorizingTrustManager.java | 898 --------------------- 1 file changed, 898 deletions(-) delete mode 100644 libs/MemorizingTrustManager/src/de/duenndns/ssl/MemorizingTrustManager.java (limited to 'libs/MemorizingTrustManager/src/de/duenndns/ssl/MemorizingTrustManager.java') diff --git a/libs/MemorizingTrustManager/src/de/duenndns/ssl/MemorizingTrustManager.java b/libs/MemorizingTrustManager/src/de/duenndns/ssl/MemorizingTrustManager.java deleted file mode 100644 index a3aa561ef..000000000 --- a/libs/MemorizingTrustManager/src/de/duenndns/ssl/MemorizingTrustManager.java +++ /dev/null @@ -1,898 +0,0 @@ -/* MemorizingTrustManager - a TrustManager which asks the user about invalid - * certificates and memorizes their decision. - * - * Copyright (c) 2010 Georg Lukas - * - * MemorizingTrustManager.java contains the actual trust manager and interface - * code to create a MemorizingActivity and obtain the results. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -package de.duenndns.ssl; - -import android.app.Activity; -import android.app.Application; -import android.app.NotificationManager; -import android.app.Service; -import android.content.Context; -import android.content.Intent; -import android.net.Uri; -import android.os.Handler; -import android.preference.PreferenceManager; -import android.util.Base64; -import android.util.Log; -import android.util.SparseArray; - -import org.json.JSONArray; -import org.json.JSONException; -import org.json.JSONObject; - -import java.io.BufferedReader; -import java.io.File; -import java.io.FileInputStream; -import java.io.FileNotFoundException; -import java.io.FileOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.net.URL; -import java.security.KeyStore; -import java.security.KeyStoreException; -import java.security.MessageDigest; -import java.security.NoSuchAlgorithmException; -import java.security.cert.Certificate; -import java.security.cert.CertificateEncodingException; -import java.security.cert.CertificateException; -import java.security.cert.CertificateExpiredException; -import java.security.cert.CertificateParsingException; -import java.security.cert.X509Certificate; -import java.text.SimpleDateFormat; -import java.util.ArrayList; -import java.util.Collection; -import java.util.Enumeration; -import java.util.List; -import java.util.Locale; -import java.util.logging.Level; -import java.util.logging.Logger; -import java.util.regex.Pattern; - -import javax.net.ssl.HostnameVerifier; -import javax.net.ssl.HttpsURLConnection; -import javax.net.ssl.SSLSession; -import javax.net.ssl.TrustManager; -import javax.net.ssl.TrustManagerFactory; -import javax.net.ssl.X509TrustManager; - -/** - * A X509 trust manager implementation which asks the user about invalid - * certificates and memorizes their decision. - *

- * The certificate validity is checked using the system default X509 - * TrustManager, creating a query Dialog if the check fails. - *

- * WARNING: This only works if a dedicated thread is used for - * opening sockets! - */ -public class MemorizingTrustManager { - - - private static final Pattern PATTERN_IPV4 = Pattern.compile("\\A(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}\\z"); - private static final Pattern PATTERN_IPV6_HEX4DECCOMPRESSED = Pattern.compile("\\A((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?) ::((?:[0-9A-Fa-f]{1,4}:)*)(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}\\z"); - private static final Pattern PATTERN_IPV6_6HEX4DEC = Pattern.compile("\\A((?:[0-9A-Fa-f]{1,4}:){6,6})(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}\\z"); - private static final Pattern PATTERN_IPV6_HEXCOMPRESSED = Pattern.compile("\\A((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)::((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)\\z"); - private static final Pattern PATTERN_IPV6 = Pattern.compile("\\A(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}\\z"); - - final static String DECISION_INTENT = "de.duenndns.ssl.DECISION"; - final static String DECISION_INTENT_ID = DECISION_INTENT + ".decisionId"; - final static String DECISION_INTENT_CERT = DECISION_INTENT + ".cert"; - final static String DECISION_INTENT_CHOICE = DECISION_INTENT + ".decisionChoice"; - - private final static Logger LOGGER = Logger.getLogger(MemorizingTrustManager.class.getName()); - final static String DECISION_TITLE_ID = DECISION_INTENT + ".titleId"; - private final static int NOTIFICATION_ID = 100509; - - final static String NO_TRUST_ANCHOR = "Trust anchor for certification path not found."; - - static String KEYSTORE_DIR = "KeyStore"; - static String KEYSTORE_FILE = "KeyStore.bks"; - - Context master; - Activity foregroundAct; - NotificationManager notificationManager; - private static int decisionId = 0; - private static SparseArray openDecisions = new SparseArray(); - - Handler masterHandler; - private File keyStoreFile; - private KeyStore appKeyStore; - private X509TrustManager defaultTrustManager; - private X509TrustManager appTrustManager; - private String poshCacheDir; - - /** - * Creates an instance of the MemorizingTrustManager class that falls back to a custom TrustManager. - *

- * You need to supply the application context. This has to be one of: - * - Application - * - Activity - * - Service - *

- * The context is used for file management, to display the dialog / - * notification and for obtaining translated strings. - * - * @param m Context for the application. - * @param defaultTrustManager Delegate trust management to this TM. If null, the user must accept every certificate. - */ - public MemorizingTrustManager(Context m, X509TrustManager defaultTrustManager) { - init(m); - this.appTrustManager = getTrustManager(appKeyStore); - this.defaultTrustManager = defaultTrustManager; - } - - /** - * Creates an instance of the MemorizingTrustManager class using the system X509TrustManager. - *

- * You need to supply the application context. This has to be one of: - * - Application - * - Activity - * - Service - *

- * The context is used for file management, to display the dialog / - * notification and for obtaining translated strings. - * - * @param m Context for the application. - */ - public MemorizingTrustManager(Context m) { - init(m); - this.appTrustManager = getTrustManager(appKeyStore); - this.defaultTrustManager = getTrustManager(null); - } - - void init(Context m) { - master = m; - masterHandler = new Handler(m.getMainLooper()); - notificationManager = (NotificationManager) master.getSystemService(Context.NOTIFICATION_SERVICE); - - Application app; - if (m instanceof Application) { - app = (Application) m; - } else if (m instanceof Service) { - app = ((Service) m).getApplication(); - } else if (m instanceof Activity) { - app = ((Activity) m).getApplication(); - } else - throw new ClassCastException("MemorizingTrustManager context must be either Activity or Service!"); - - File dir = app.getDir(KEYSTORE_DIR, Context.MODE_PRIVATE); - keyStoreFile = new File(dir + File.separator + KEYSTORE_FILE); - - poshCacheDir = app.getFilesDir().getAbsolutePath() + "/posh_cache/"; - - appKeyStore = loadAppKeyStore(); - } - - - /** - * Binds an Activity to the MTM for displaying the query dialog. - *

- * This is useful if your connection is run from a service that is - * triggered by user interaction -- in such cases the activity is - * visible and the user tends to ignore the service notification. - *

- * You should never have a hidden activity bound to MTM! Use this - * function in onResume() and @see unbindDisplayActivity in onPause(). - * - * @param act Activity to be bound - */ - public void bindDisplayActivity(Activity act) { - foregroundAct = act; - } - - /** - * Removes an Activity from the MTM display stack. - *

- * Always call this function when the Activity added with - * {@link #bindDisplayActivity(Activity)} is hidden. - * - * @param act Activity to be unbound - */ - public void unbindDisplayActivity(Activity act) { - // do not remove if it was overridden by a different activity - if (foregroundAct == act) - foregroundAct = null; - } - - /** - * Changes the path for the KeyStore file. - *

- * The actual filename relative to the app's directory will be - * app_dirname/filename. - * - * @param dirname directory to store the KeyStore. - * @param filename file name for the KeyStore. - */ - public static void setKeyStoreFile(String dirname, String filename) { - KEYSTORE_DIR = dirname; - KEYSTORE_FILE = filename; - } - - /** - * Get a list of all certificate aliases stored in MTM. - * - * @return an {@link Enumeration} of all certificates - */ - public Enumeration getCertificates() { - try { - return appKeyStore.aliases(); - } catch (KeyStoreException e) { - // this should never happen, however... - throw new RuntimeException(e); - } - } - - /** - * Get a certificate for a given alias. - * - * @param alias the certificate's alias as returned by {@link #getCertificates()}. - * @return the certificate associated with the alias or null if none found. - */ - public Certificate getCertificate(String alias) { - try { - return appKeyStore.getCertificate(alias); - } catch (KeyStoreException e) { - // this should never happen, however... - throw new RuntimeException(e); - } - } - - /** - * Removes the given certificate from MTMs key store. - *

- *

- * WARNING: this does not immediately invalidate the certificate. It is - * well possible that (a) data is transmitted over still existing connections or - * (b) new connections are created using TLS renegotiation, without a new cert - * check. - *

- * - * @param alias the certificate's alias as returned by {@link #getCertificates()}. - * @throws KeyStoreException if the certificate could not be deleted. - */ - public void deleteCertificate(String alias) throws KeyStoreException { - appKeyStore.deleteEntry(alias); - keyStoreUpdated(); - } - - /** - * Creates a new hostname verifier supporting user interaction. - *

- *

This method creates a new {@link HostnameVerifier} that is bound to - * the given instance of {@link MemorizingTrustManager}, and leverages an - * existing {@link HostnameVerifier}. The returned verifier performs the - * following steps, returning as soon as one of them succeeds: - *

- *
    - *
  1. Success, if the wrapped defaultVerifier accepts the certificate.
    2. - *
  2. Success, if the server certificate is stored in the keystore under the given hostname.
    3. - *
  3. Ask the user and return accordingly.
    4. - *
  4. Failure on exception.
    5. - *
- * - * @param defaultVerifier the {@link HostnameVerifier} that should perform the actual check - * @return a new hostname verifier using the MTM's key store - * @throws IllegalArgumentException if the defaultVerifier parameter is null - */ - public DomainHostnameVerifier wrapHostnameVerifier(final HostnameVerifier defaultVerifier, final boolean interactive) { - if (defaultVerifier == null) { - throw new IllegalArgumentException("The default verifier may not be null"); - } - return new MemorizingHostnameVerifier(defaultVerifier, interactive); - } - - X509TrustManager getTrustManager(KeyStore ks) { - try { - TrustManagerFactory tmf = TrustManagerFactory.getInstance("X509"); - tmf.init(ks); - for (TrustManager t : tmf.getTrustManagers()) { - if (t instanceof X509TrustManager) { - return (X509TrustManager) t; - } - } - } catch (Exception e) { - // Here, we are covering up errors. It might be more useful - // however to throw them out of the constructor so the - // embedding app knows something went wrong. - LOGGER.log(Level.SEVERE, "getTrustManager(" + ks + ")", e); - } - return null; - } - - KeyStore loadAppKeyStore() { - KeyStore ks; - try { - ks = KeyStore.getInstance(KeyStore.getDefaultType()); - } catch (KeyStoreException e) { - LOGGER.log(Level.SEVERE, "getAppKeyStore()", e); - return null; - } - try { - ks.load(null, null); - ks.load(new java.io.FileInputStream(keyStoreFile), "MTM".toCharArray()); - } catch (java.io.FileNotFoundException e) { - LOGGER.log(Level.INFO, "getAppKeyStore(" + keyStoreFile + ") - file does not exist"); - } catch (Exception e) { - LOGGER.log(Level.SEVERE, "getAppKeyStore(" + keyStoreFile + ")", e); - } - return ks; - } - - void storeCert(String alias, Certificate cert) { - try { - appKeyStore.setCertificateEntry(alias, cert); - } catch (KeyStoreException e) { - LOGGER.log(Level.SEVERE, "storeCert(" + cert + ")", e); - return; - } - keyStoreUpdated(); - } - - void storeCert(X509Certificate cert) { - storeCert(cert.getSubjectDN().toString(), cert); - } - - void keyStoreUpdated() { - // reload appTrustManager - appTrustManager = getTrustManager(appKeyStore); - - // store KeyStore to file - java.io.FileOutputStream fos = null; - try { - fos = new java.io.FileOutputStream(keyStoreFile); - appKeyStore.store(fos, "MTM".toCharArray()); - } catch (Exception e) { - LOGGER.log(Level.SEVERE, "storeCert(" + keyStoreFile + ")", e); - } finally { - if (fos != null) { - try { - fos.close(); - } catch (IOException e) { - LOGGER.log(Level.SEVERE, "storeCert(" + keyStoreFile + ")", e); - } - } - } - } - - // if the certificate is stored in the app key store, it is considered "known" - private boolean isCertKnown(X509Certificate cert) { - try { - return appKeyStore.getCertificateAlias(cert) != null; - } catch (KeyStoreException e) { - return false; - } - } - - private boolean isExpiredException(Throwable e) { - do { - if (e instanceof CertificateExpiredException) - return true; - e = e.getCause(); - } while (e != null); - return false; - } - - public void checkCertTrusted(X509Certificate[] chain, String authType, String domain, boolean isServer, boolean interactive) - throws CertificateException { - LOGGER.log(Level.FINE, "checkCertTrusted(" + chain + ", " + authType + ", " + isServer + ")"); - try { - LOGGER.log(Level.FINE, "checkCertTrusted: trying appTrustManager"); - if (isServer) - appTrustManager.checkServerTrusted(chain, authType); - else - appTrustManager.checkClientTrusted(chain, authType); - } catch (CertificateException ae) { - LOGGER.log(Level.FINER, "checkCertTrusted: appTrustManager failed", ae); - // if the cert is stored in our appTrustManager, we ignore expiredness - if (isExpiredException(ae)) { - LOGGER.log(Level.INFO, "checkCertTrusted: accepting expired certificate from keystore"); - return; - } - if (isCertKnown(chain[0])) { - LOGGER.log(Level.INFO, "checkCertTrusted: accepting cert already stored in keystore"); - return; - } - try { - if (defaultTrustManager == null) - throw ae; - LOGGER.log(Level.FINE, "checkCertTrusted: trying defaultTrustManager"); - if (isServer) - defaultTrustManager.checkServerTrusted(chain, authType); - else - defaultTrustManager.checkClientTrusted(chain, authType); - } catch (CertificateException e) { - boolean trustSystemCAs = !PreferenceManager.getDefaultSharedPreferences(master).getBoolean("dont_trust_system_cas", false); - if (domain != null && isServer && trustSystemCAs && !isIp(domain)) { - String hash = getBase64Hash(chain[0], "SHA-256"); - List fingerprints = getPoshFingerprints(domain); - if (hash != null && fingerprints.contains(hash)) { - Log.d("mtm", "trusted cert fingerprint of " + domain + " via posh"); - return; - } - } - e.printStackTrace(); - if (interactive) { - interactCert(chain, authType, e); - } else { - throw e; - } - } - } - } - - private List getPoshFingerprints(String domain) { - List cached = getPoshFingerprintsFromCache(domain); - if (cached == null) { - return getPoshFingerprintsFromServer(domain); - } else { - return cached; - } - } - - private List getPoshFingerprintsFromServer(String domain) { - return getPoshFingerprintsFromServer(domain, "https://" + domain + "/.well-known/posh/xmpp-client.json", -1, true); - } - - private List getPoshFingerprintsFromServer(String domain, String url, int maxTtl, boolean followUrl) { - Log.d("mtm", "downloading json for " + domain + " from " + url); - try { - List results = new ArrayList<>(); - HttpsURLConnection connection = (HttpsURLConnection) new URL(url).openConnection(); - connection.setConnectTimeout(5000); - connection.setReadTimeout(5000); - BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream())); - String inputLine; - StringBuilder builder = new StringBuilder(); - while ((inputLine = in.readLine()) != null) { - builder.append(inputLine); - } - JSONObject jsonObject = new JSONObject(builder.toString()); - in.close(); - int expires = jsonObject.getInt("expires"); - if (expires <= 0) { - return new ArrayList<>(); - } - if (maxTtl >= 0) { - expires = Math.min(maxTtl, expires); - } - String redirect; - try { - redirect = jsonObject.getString("url"); - } catch (JSONException e) { - redirect = null; - } - if (followUrl && redirect != null && redirect.toLowerCase().startsWith("https")) { - return getPoshFingerprintsFromServer(domain, redirect, expires, false); - } - JSONArray fingerprints = jsonObject.getJSONArray("fingerprints"); - for (int i = 0; i < fingerprints.length(); i++) { - JSONObject fingerprint = fingerprints.getJSONObject(i); - String sha256 = fingerprint.getString("sha-256"); - if (sha256 != null) { - results.add(sha256); - } - } - writeFingerprintsToCache(domain, results, 1000L * expires + System.currentTimeMillis()); - return results; - } catch (Exception e) { - Log.d("mtm", "error fetching posh " + e.getMessage()); - return new ArrayList<>(); - } - } - - private File getPoshCacheFile(String domain) { - return new File(poshCacheDir + domain + ".json"); - } - - private void writeFingerprintsToCache(String domain, List results, long expires) { - File file = getPoshCacheFile(domain); - file.getParentFile().mkdirs(); - try { - file.createNewFile(); - JSONObject jsonObject = new JSONObject(); - jsonObject.put("expires", expires); - jsonObject.put("fingerprints", new JSONArray(results)); - FileOutputStream outputStream = new FileOutputStream(file); - outputStream.write(jsonObject.toString().getBytes()); - outputStream.flush(); - outputStream.close(); - } catch (Exception e) { - e.printStackTrace(); - } - } - - private List getPoshFingerprintsFromCache(String domain) { - File file = getPoshCacheFile(domain); - try { - InputStream is = new FileInputStream(file); - BufferedReader buf = new BufferedReader(new InputStreamReader(is)); - - String line = buf.readLine(); - StringBuilder sb = new StringBuilder(); - - while (line != null) { - sb.append(line).append("\n"); - line = buf.readLine(); - } - JSONObject jsonObject = new JSONObject(sb.toString()); - is.close(); - long expires = jsonObject.getLong("expires"); - long expiresIn = expires - System.currentTimeMillis(); - if (expiresIn < 0) { - file.delete(); - return null; - } else { - Log.d("mtm", "posh fingerprints expire in " + (expiresIn / 1000) + "s"); - } - List result = new ArrayList<>(); - JSONArray jsonArray = jsonObject.getJSONArray("fingerprints"); - for (int i = 0; i < jsonArray.length(); ++i) { - result.add(jsonArray.getString(i)); - } - return result; - } catch (FileNotFoundException e) { - return null; - } catch (IOException e) { - return null; - } catch (JSONException e) { - file.delete(); - return null; - } - } - - private static boolean isIp(final String server) { - return server != null && ( - PATTERN_IPV4.matcher(server).matches() - || PATTERN_IPV6.matcher(server).matches() - || PATTERN_IPV6_6HEX4DEC.matcher(server).matches() - || PATTERN_IPV6_HEX4DECCOMPRESSED.matcher(server).matches() - || PATTERN_IPV6_HEXCOMPRESSED.matcher(server).matches()); - } - - private static String getBase64Hash(X509Certificate certificate, String digest) throws CertificateEncodingException { - MessageDigest md; - try { - md = MessageDigest.getInstance(digest); - } catch (NoSuchAlgorithmException e) { - return null; - } - md.update(certificate.getEncoded()); - return Base64.encodeToString(md.digest(), Base64.NO_WRAP); - } - - private X509Certificate[] getAcceptedIssuers() { - LOGGER.log(Level.FINE, "getAcceptedIssuers()"); - return defaultTrustManager.getAcceptedIssuers(); - } - - private int createDecisionId(MTMDecision d) { - int myId; - synchronized (openDecisions) { - myId = decisionId; - openDecisions.put(myId, d); - decisionId += 1; - } - return myId; - } - - private static String hexString(byte[] data) { - StringBuffer si = new StringBuffer(); - for (int i = 0; i < data.length; i++) { - si.append(String.format("%02x", data[i])); - if (i < data.length - 1) - si.append(":"); - } - return si.toString(); - } - - private static String certHash(final X509Certificate cert, String digest) { - try { - MessageDigest md = MessageDigest.getInstance(digest); - md.update(cert.getEncoded()); - return hexString(md.digest()); - } catch (java.security.cert.CertificateEncodingException e) { - return e.getMessage(); - } catch (java.security.NoSuchAlgorithmException e) { - return e.getMessage(); - } - } - - private void certDetails(StringBuffer si, X509Certificate c) { - SimpleDateFormat validityDateFormater = new SimpleDateFormat("yyyy-MM-dd"); - si.append("\n"); - si.append(c.getSubjectDN().toString()); - si.append("\n"); - si.append(validityDateFormater.format(c.getNotBefore())); - si.append(" - "); - si.append(validityDateFormater.format(c.getNotAfter())); - si.append("\nSHA-256: "); - si.append(certHash(c, "SHA-256")); - si.append("\nSHA-1: "); - si.append(certHash(c, "SHA-1")); - si.append("\nSigned by: "); - si.append(c.getIssuerDN().toString()); - si.append("\n"); - } - - private String certChainMessage(final X509Certificate[] chain, CertificateException cause) { - Throwable e = cause; - LOGGER.log(Level.FINE, "certChainMessage for " + e); - StringBuffer si = new StringBuffer(); - if (e.getCause() != null) { - e = e.getCause(); - // HACK: there is no sane way to check if the error is a "trust anchor - // not found", so we use string comparison. - if (NO_TRUST_ANCHOR.equals(e.getMessage())) { - si.append(master.getString(R.string.mtm_trust_anchor)); - } else - si.append(e.getLocalizedMessage()); - si.append("\n"); - } - si.append("\n"); - si.append(master.getString(R.string.mtm_connect_anyway)); - si.append("\n\n"); - si.append(master.getString(R.string.mtm_cert_details)); - for (X509Certificate c : chain) { - certDetails(si, c); - } - return si.toString(); - } - - private String hostNameMessage(X509Certificate cert, String hostname) { - StringBuffer si = new StringBuffer(); - - si.append(master.getString(R.string.mtm_hostname_mismatch, hostname)); - si.append("\n\n"); - try { - Collection> sans = cert.getSubjectAlternativeNames(); - if (sans == null) { - si.append(cert.getSubjectDN()); - si.append("\n"); - } else for (List altName : sans) { - Object name = altName.get(1); - if (name instanceof String) { - si.append("["); - si.append((Integer) altName.get(0)); - si.append("] "); - si.append(name); - si.append("\n"); - } - } - } catch (CertificateParsingException e) { - e.printStackTrace(); - si.append("\n"); - } - si.append("\n"); - si.append(master.getString(R.string.mtm_connect_anyway)); - si.append("\n\n"); - si.append(master.getString(R.string.mtm_cert_details)); - certDetails(si, cert); - return si.toString(); - } - - /** - * Returns the top-most entry of the activity stack. - * - * @return the Context of the currently bound UI or the master context if none is bound - */ - Context getUI() { - return (foregroundAct != null) ? foregroundAct : master; - } - - int interact(final String message, final int titleId) { - /* prepare the MTMDecision blocker object */ - MTMDecision choice = new MTMDecision(); - final int myId = createDecisionId(choice); - - masterHandler.post(new Runnable() { - public void run() { - Intent ni = new Intent(master, MemorizingActivity.class); - ni.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); - ni.setData(Uri.parse(MemorizingTrustManager.class.getName() + "/" + myId)); - ni.putExtra(DECISION_INTENT_ID, myId); - ni.putExtra(DECISION_INTENT_CERT, message); - ni.putExtra(DECISION_TITLE_ID, titleId); - - // we try to directly start the activity and fall back to - // making a notification - try { - getUI().startActivity(ni); - } catch (Exception e) { - LOGGER.log(Level.FINE, "startActivity(MemorizingActivity)", e); - } - } - }); - - LOGGER.log(Level.FINE, "openDecisions: " + openDecisions + ", waiting on " + myId); - try { - synchronized (choice) { - choice.wait(); - } - } catch (InterruptedException e) { - LOGGER.log(Level.FINER, "InterruptedException", e); - } - LOGGER.log(Level.FINE, "finished wait on " + myId + ": " + choice.state); - return choice.state; - } - - void interactCert(final X509Certificate[] chain, String authType, CertificateException cause) - throws CertificateException { - switch (interact(certChainMessage(chain, cause), R.string.mtm_accept_cert)) { - case MTMDecision.DECISION_ALWAYS: - storeCert(chain[0]); // only store the server cert, not the whole chain - case MTMDecision.DECISION_ONCE: - break; - default: - throw (cause); - } - } - - boolean interactHostname(X509Certificate cert, String hostname) { - switch (interact(hostNameMessage(cert, hostname), R.string.mtm_accept_servername)) { - case MTMDecision.DECISION_ALWAYS: - storeCert(hostname, cert); - case MTMDecision.DECISION_ONCE: - return true; - default: - return false; - } - } - - protected static void interactResult(int decisionId, int choice) { - MTMDecision d; - synchronized (openDecisions) { - d = openDecisions.get(decisionId); - openDecisions.remove(decisionId); - } - if (d == null) { - LOGGER.log(Level.SEVERE, "interactResult: aborting due to stale decision reference!"); - return; - } - synchronized (d) { - d.state = choice; - d.notify(); - } - } - - class MemorizingHostnameVerifier implements DomainHostnameVerifier { - private final HostnameVerifier defaultVerifier; - private final boolean interactive; - - public MemorizingHostnameVerifier(HostnameVerifier wrapped, boolean interactive) { - this.defaultVerifier = wrapped; - this.interactive = interactive; - } - - @Override - public boolean verify(String domain, String hostname, SSLSession session) { - LOGGER.log(Level.FINE, "hostname verifier for " + domain + ", trying default verifier first"); - // if the default verifier accepts the hostname, we are done - if (defaultVerifier instanceof DomainHostnameVerifier) { - if (((DomainHostnameVerifier) defaultVerifier).verify(domain, hostname, session)) { - return true; - } - } else { - if (defaultVerifier.verify(domain, session)) { - return true; - } - } - - // otherwise, we check if the hostname is an alias for this cert in our keystore - try { - X509Certificate cert = (X509Certificate) session.getPeerCertificates()[0]; - //Log.d(TAG, "cert: " + cert); - if (cert.equals(appKeyStore.getCertificate(domain.toLowerCase(Locale.US)))) { - LOGGER.log(Level.FINE, "certificate for " + domain + " is in our keystore. accepting."); - return true; - } else { - LOGGER.log(Level.FINE, "server " + domain + " provided wrong certificate, asking user."); - if (interactive) { - return interactHostname(cert, domain); - } else { - return false; - } - } - } catch (Exception e) { - e.printStackTrace(); - return false; - } - } - - @Override - public boolean verify(String domain, SSLSession sslSession) { - return verify(domain, null, sslSession); - } - } - - public X509TrustManager getNonInteractive(String domain) { - return new NonInteractiveMemorizingTrustManager(domain); - } - - public X509TrustManager getInteractive(String domain) { - return new InteractiveMemorizingTrustManager(domain); - } - - public X509TrustManager getNonInteractive() { - return new NonInteractiveMemorizingTrustManager(null); - } - - public X509TrustManager getInteractive() { - return new InteractiveMemorizingTrustManager(null); - } - - private class NonInteractiveMemorizingTrustManager implements X509TrustManager { - - private final String domain; - - public NonInteractiveMemorizingTrustManager(String domain) { - this.domain = domain; - } - - @Override - public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException { - MemorizingTrustManager.this.checkCertTrusted(chain, authType, domain, false, false); - } - - @Override - public void checkServerTrusted(X509Certificate[] chain, String authType) - throws CertificateException { - MemorizingTrustManager.this.checkCertTrusted(chain, authType, domain, true, false); - } - - @Override - public X509Certificate[] getAcceptedIssuers() { - return MemorizingTrustManager.this.getAcceptedIssuers(); - } - - } - - private class InteractiveMemorizingTrustManager implements X509TrustManager { - private final String domain; - - public InteractiveMemorizingTrustManager(String domain) { - this.domain = domain; - } - - @Override - public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException { - MemorizingTrustManager.this.checkCertTrusted(chain, authType, domain, false, true); - } - - @Override - public void checkServerTrusted(X509Certificate[] chain, String authType) - throws CertificateException { - MemorizingTrustManager.this.checkCertTrusted(chain, authType, domain, true, true); - } - - @Override - public X509Certificate[] getAcceptedIssuers() { - return MemorizingTrustManager.this.getAcceptedIssuers(); - } - } -} -- cgit v1.2.3