List of usage examples for java.lang Iterable toString
public String toString()
From source file:net.java.sip.communicator.impl.certificate.CertificateServiceImpl.java
public X509TrustManager getTrustManager(final Iterable<String> identitiesToTest, final CertificateMatcher clientVerifier, final CertificateMatcher serverVerifier) throws GeneralSecurityException { // obtain the default X509 trust manager X509TrustManager defaultTm = null; TrustManagerFactory tmFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm()); //workaround for https://bugs.openjdk.java.net/browse/JDK-6672015 KeyStore ks = null;//from w ww.j ava 2 s . c o m String tsType = System.getProperty("javax.net.ssl.trustStoreType", null); if ("Windows-ROOT".equals(tsType)) { try { ks = KeyStore.getInstance(tsType); ks.load(null, null); int numEntries = keyStoreAppendIndex(ks); logger.info( "Using Windows-ROOT. Aliases sucessfully renamed on " + numEntries + " root certificates."); } catch (Exception e) { logger.error("Could not rename Windows-ROOT aliases", e); } } tmFactory.init(ks); for (TrustManager m : tmFactory.getTrustManagers()) { if (m instanceof X509TrustManager) { defaultTm = (X509TrustManager) m; break; } } if (defaultTm == null) throw new GeneralSecurityException("No default X509 trust manager found"); final X509TrustManager tm = defaultTm; return new X509TrustManager() { private boolean serverCheck; public X509Certificate[] getAcceptedIssuers() { return tm.getAcceptedIssuers(); } public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException { serverCheck = true; checkCertTrusted(chain, authType); } public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException { serverCheck = false; checkCertTrusted(chain, authType); } private void checkCertTrusted(X509Certificate[] chain, String authType) throws CertificateException { // check and default configurations for property // if missing default is null - false String defaultAlwaysTrustMode = CertificateVerificationActivator.getResources() .getSettingsString(CertificateService.PNAME_ALWAYS_TRUST); if (config.getBoolean(PNAME_ALWAYS_TRUST, Boolean.parseBoolean(defaultAlwaysTrustMode))) return; try { // check the certificate itself (issuer, validity) try { chain = tryBuildChain(chain); } catch (Exception e) { } // don't care and take the chain as is if (serverCheck) tm.checkServerTrusted(chain, authType); else tm.checkClientTrusted(chain, authType); if (identitiesToTest == null || !identitiesToTest.iterator().hasNext()) return; else if (serverCheck) serverVerifier.verify(identitiesToTest, chain[0]); else clientVerifier.verify(identitiesToTest, chain[0]); // ok, globally valid cert } catch (CertificateException e) { String thumbprint = getThumbprint(chain[0], THUMBPRINT_HASH_ALGORITHM); String message = null; List<String> propNames = new LinkedList<String>(); List<String> storedCerts = new LinkedList<String>(); String appName = R.getSettingsString("service.gui.APPLICATION_NAME"); if (identitiesToTest == null || !identitiesToTest.iterator().hasNext()) { String propName = PNAME_CERT_TRUST_PREFIX + ".server." + thumbprint; propNames.add(propName); message = R.getI18NString("service.gui." + "CERT_DIALOG_DESCRIPTION_TXT_NOHOST", new String[] { appName }); // get the thumbprints from the permanent allowances String hashes = config.getString(propName); if (hashes != null) for (String h : hashes.split(",")) storedCerts.add(h); // get the thumbprints from the session allowances List<String> sessionCerts = sessionAllowedCertificates.get(propName); if (sessionCerts != null) storedCerts.addAll(sessionCerts); } else { if (serverCheck) { message = R.getI18NString("service.gui." + "CERT_DIALOG_DESCRIPTION_TXT", new String[] { appName, identitiesToTest.toString() }); } else { message = R.getI18NString("service.gui." + "CERT_DIALOG_PEER_DESCRIPTION_TXT", new String[] { appName, identitiesToTest.toString() }); } for (String identity : identitiesToTest) { String propName = PNAME_CERT_TRUST_PREFIX + ".param." + identity; propNames.add(propName); // get the thumbprints from the permanent allowances String hashes = config.getString(propName); if (hashes != null) for (String h : hashes.split(",")) storedCerts.add(h); // get the thumbprints from the session allowances List<String> sessionCerts = sessionAllowedCertificates.get(propName); if (sessionCerts != null) storedCerts.addAll(sessionCerts); } } if (!storedCerts.contains(thumbprint)) { switch (verify(chain, message)) { case DO_NOT_TRUST: logger.info("Untrusted certificate", e); throw new CertificateException("The peer provided certificate with Subject <" + chain[0].getSubjectDN() + "> is not trusted", e); case TRUST_ALWAYS: for (String propName : propNames) { String current = config.getString(propName); String newValue = thumbprint; if (current != null) newValue += "," + current; config.setProperty(propName, newValue); } break; case TRUST_THIS_SESSION_ONLY: for (String propName : propNames) getSessionCertEntry(propName).add(thumbprint); break; } } // ok, we've seen this certificate before } } private X509Certificate[] tryBuildChain(X509Certificate[] chain) throws IOException, URISyntaxException, CertificateException { // Only try to build chains for servers that send only their // own cert, but no issuer. This also matches self signed (will // be ignored later) and Root-CA signed certs. In this case we // throw the Root-CA away after the lookup if (chain.length != 1) return chain; // ignore self signed certs if (chain[0].getIssuerDN().equals(chain[0].getSubjectDN())) return chain; // prepare for the newly created chain List<X509Certificate> newChain = new ArrayList<X509Certificate>(chain.length + 4); for (X509Certificate cert : chain) { newChain.add(cert); } // search from the topmost certificate upwards CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); X509Certificate current = chain[chain.length - 1]; boolean foundParent; int chainLookupCount = 0; do { foundParent = false; // extract the url(s) where the parent certificate can be // found byte[] aiaBytes = current.getExtensionValue(Extension.authorityInfoAccess.getId()); if (aiaBytes == null) break; AuthorityInformationAccess aia = AuthorityInformationAccess .getInstance(X509ExtensionUtil.fromExtensionValue(aiaBytes)); // the AIA may contain different URLs and types, try all // of them for (AccessDescription ad : aia.getAccessDescriptions()) { // we are only interested in the issuer certificate, // not in OCSP urls the like if (!ad.getAccessMethod().equals(AccessDescription.id_ad_caIssuers)) continue; GeneralName gn = ad.getAccessLocation(); if (!(gn.getTagNo() == GeneralName.uniformResourceIdentifier && gn.getName() instanceof DERIA5String)) continue; URI uri = new URI(((DERIA5String) gn.getName()).getString()); // only http(s) urls; LDAP is taken care of in the // default implementation if (!(uri.getScheme().equalsIgnoreCase("http") || uri.getScheme().equals("https"))) continue; X509Certificate cert = null; // try to get cert from cache first to avoid consecutive // (slow) http lookups AiaCacheEntry cache = aiaCache.get(uri); if (cache != null && cache.cacheDate.after(new Date())) { cert = cache.cert; } else { // download if no cache entry or if it is expired if (logger.isDebugEnabled()) logger.debug("Downloading parent certificate for <" + current.getSubjectDN() + "> from <" + uri + ">"); try { InputStream is = HttpUtils.openURLConnection(uri.toString()).getContent(); cert = (X509Certificate) certFactory.generateCertificate(is); } catch (Exception e) { logger.debug("Could not download from <" + uri + ">"); } // cache for 10mins aiaCache.put(uri, new AiaCacheEntry(new Date(new Date().getTime() + 10 * 60 * 1000), cert)); } if (cert != null) { if (!cert.getIssuerDN().equals(cert.getSubjectDN())) { newChain.add(cert); foundParent = true; current = cert; break; // an AD was valid, ignore others } else logger.debug("Parent is self-signed, ignoring"); } } chainLookupCount++; } while (foundParent && chainLookupCount < 10); chain = newChain.toArray(chain); return chain; } }; }