Quel est un moyen facile d'ignorer totalement ssl avec Java connexions URL?
Je crée une application qui vérifie périodiquement certains flux rss pour le nouveau contenu. Certains de ces flux ne sont accessibles que via https et certains ont des certificats auto-signés ou en quelque sorte cassés. Je veux pouvoir les vérifier quand même.
Veuillez noter que la sécurité n'est pas un problème dans cette application, le but est d'accéder au contenu avec un minimum d'effort.
J'utilise ce code pour contourner la plupart des problèmes de certificat:
/**
* Sets timeout values and user agent header, and ignores self signed ssl
* certificates to enable maximum coverage
*
* @param con
* @return
*/
public static URLConnection configureConnection(URLConnection con)
{
con.setRequestProperty(
"User-Agent",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.95 Safari/537.11");
con.setConnectTimeout(30000);
con.setReadTimeout(40000);
if (con instanceof HttpsURLConnection)
{
HttpsURLConnection conHttps = (HttpsURLConnection) con;
TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager()
{
public Java.security.cert.X509Certificate[] getAcceptedIssuers()
{
return null;
}
public void checkClientTrusted(
Java.security.cert.X509Certificate[] certs, String authType)
{
}
public void checkServerTrusted(
Java.security.cert.X509Certificate[] certs, String authType)
{
}
} };
HostnameVerifier allHostsValid = new HostnameVerifier()
{
@Override
public boolean verify(String arg0, SSLSession arg1)
{
return true;
}
};
// Install the all-trusting trust manager
try
{
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, trustAllCerts, new Java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc
.getSocketFactory());
HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid);
con = conHttps;
} catch (Exception e)
{
}
}
return con;
}
cela fonctionne pour la plupart des sites, mais sur l'un, je reçois toujours cette exception:
javax.net.ssl.SSLHandshakeException: Sun.security.validator.ValidatorException: PKIX path building failed: Sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification pat
h to requested target
at Sun.security.ssl.Alerts.getSSLException(Alerts.Java:192)
at Sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.Java:1715)
at Sun.security.ssl.Handshaker.fatalSE(Handshaker.Java:257)
at Sun.security.ssl.Handshaker.fatalSE(Handshaker.Java:251)
at Sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.Java:1168)
at Sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.Java:153)
at Sun.security.ssl.Handshaker.processLoop(Handshaker.Java:609)
at Sun.security.ssl.Handshaker.process_record(Handshaker.Java:545)
at Sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.Java:963)
at Sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.Java:1208)
at Sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.Java:1235)
at Sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.Java:1219)
at Sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.Java:440)
at Sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.Java:185)
at Sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.Java:1139)
at Java.net.HttpURLConnection.getResponseCode(HttpURLConnection.Java:397)
at Sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.Java:338)
at crawler.RSSReader.getNewArticles(RSSReader.Java:53)
at crawler.Crawler.fetchFeed(Crawler.Java:187)
at crawler.Crawler.main(Crawler.Java:120)
at Sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at Sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.Java:57)
at Sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.Java:43)
at Java.lang.reflect.Method.invoke(Method.Java:622)
at org.Eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.Java:58)
Caused by: Sun.security.validator.ValidatorException: PKIX path building failed: Sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at Sun.security.validator.PKIXValidator.doBuild(PKIXValidator.Java:324)
at Sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.Java:224)
at Sun.security.validator.Validator.validate(Validator.Java:235)
at Sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.Java:147)
at Sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.Java:230)
at Sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.Java:270)
at Sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.Java:1147)
... 20 more
Caused by: Sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at Sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.Java:197)
at Java.security.cert.CertPathBuilder.build(CertPathBuilder.Java:255)
at Sun.security.validator.PKIXValidator.doBuild(PKIXValidator.Java:319)
Est-ce que quelqu'un sait comment je peux résoudre ce problème?
Il y a une solution à ici qui fonctionne gracieusement pour moi. Il suffit d'appeler
SSLUtilities.trustAllHostnames();
SSLUtilities.trustAllHttpsCertificates();
Avant votre connexion SSL.
Vous pouvez également capturer davantage de solutions en recherchant sur Internet Java ssl trustall.
Voici la copie de cette solution (en cas de peut-être un lien cassé à l'avenir):
import Java.security.GeneralSecurityException;
import Java.security.SecureRandom;
import Java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
/**
* This class provide various static methods that relax X509 certificate and
* hostname verification while using the SSL over the HTTP protocol.
*
* @author Francis Labrie
*/
public final class SSLUtilities {
/**
* Hostname verifier for the Sun's deprecated API.
*
* @deprecated see {@link #_hostnameVerifier}.
*/
private static com.Sun.net.ssl.HostnameVerifier __hostnameVerifier;
/**
* Thrust managers for the Sun's deprecated API.
*
* @deprecated see {@link #_trustManagers}.
*/
private static com.Sun.net.ssl.TrustManager[] __trustManagers;
/**
* Hostname verifier.
*/
private static HostnameVerifier _hostnameVerifier;
/**
* Thrust managers.
*/
private static TrustManager[] _trustManagers;
/**
* Set the default Hostname Verifier to an instance of a fake class that
* trust all hostnames. This method uses the old deprecated API from the
* com.Sun.ssl package.
*
* @deprecated see {@link #_trustAllHostnames()}.
*/
private static void __trustAllHostnames() {
// Create a trust manager that does not validate certificate chains
if(__hostnameVerifier == null) {
__hostnameVerifier = new _FakeHostnameVerifier();
} // if
// Install the all-trusting Host name verifier
com.Sun.net.ssl.HttpsURLConnection.
setDefaultHostnameVerifier(__hostnameVerifier);
} // __trustAllHttpsCertificates
/**
* Set the default X509 Trust Manager to an instance of a fake class that
* trust all certificates, even the self-signed ones. This method uses the
* old deprecated API from the com.Sun.ssl package.
*
* @deprecated see {@link #_trustAllHttpsCertificates()}.
*/
private static void __trustAllHttpsCertificates() {
com.Sun.net.ssl.SSLContext context;
// Create a trust manager that does not validate certificate chains
if(__trustManagers == null) {
__trustManagers = new com.Sun.net.ssl.TrustManager[]
{new _FakeX509TrustManager()};
} // if
// Install the all-trusting trust manager
try {
context = com.Sun.net.ssl.SSLContext.getInstance("SSL");
context.init(null, __trustManagers, new SecureRandom());
} catch(GeneralSecurityException gse) {
throw new IllegalStateException(gse.getMessage());
} // catch
com.Sun.net.ssl.HttpsURLConnection.
setDefaultSSLSocketFactory(context.getSocketFactory());
} // __trustAllHttpsCertificates
/**
* Return true if the protocol handler property Java.
* protocol.handler.pkgs is set to the Sun's com.Sun.net.ssl.
* internal.www.protocol deprecated one, false
* otherwise.
*
* @return true if the protocol handler
* property is set to the Sun's deprecated one, false
* otherwise.
*/
private static boolean isDeprecatedSSLProtocol() {
return("com.Sun.net.ssl.internal.www.protocol".equals(System.
getProperty("Java.protocol.handler.pkgs")));
} // isDeprecatedSSLProtocol
/**
* Set the default Hostname Verifier to an instance of a fake class that
* trust all hostnames.
*/
private static void _trustAllHostnames() {
// Create a trust manager that does not validate certificate chains
if(_hostnameVerifier == null) {
_hostnameVerifier = new FakeHostnameVerifier();
} // if
// Install the all-trusting Host name verifier:
HttpsURLConnection.setDefaultHostnameVerifier(_hostnameVerifier);
} // _trustAllHttpsCertificates
/**
* Set the default X509 Trust Manager to an instance of a fake class that
* trust all certificates, even the self-signed ones.
*/
private static void _trustAllHttpsCertificates() {
SSLContext context;
// Create a trust manager that does not validate certificate chains
if(_trustManagers == null) {
_trustManagers = new TrustManager[] {new FakeX509TrustManager()};
} // if
// Install the all-trusting trust manager:
try {
context = SSLContext.getInstance("SSL");
context.init(null, _trustManagers, new SecureRandom());
} catch(GeneralSecurityException gse) {
throw new IllegalStateException(gse.getMessage());
} // catch
HttpsURLConnection.setDefaultSSLSocketFactory(context.
getSocketFactory());
} // _trustAllHttpsCertificates
/**
* Set the default Hostname Verifier to an instance of a fake class that
* trust all hostnames.
*/
public static void trustAllHostnames() {
// Is the deprecated protocol setted?
if(isDeprecatedSSLProtocol()) {
__trustAllHostnames();
} else {
_trustAllHostnames();
} // else
} // trustAllHostnames
/**
* Set the default X509 Trust Manager to an instance of a fake class that
* trust all certificates, even the self-signed ones.
*/
public static void trustAllHttpsCertificates() {
// Is the deprecated protocol setted?
if(isDeprecatedSSLProtocol()) {
__trustAllHttpsCertificates();
} else {
_trustAllHttpsCertificates();
} // else
} // trustAllHttpsCertificates
/**
* This class implements a fake hostname verificator, trusting any Host
* name. This class uses the old deprecated API from the com.Sun.
* ssl package.
*
* @author Francis Labrie
*
* @deprecated see {@link SSLUtilities.FakeHostnameVerifier}.
*/
public static class _FakeHostnameVerifier
implements com.Sun.net.ssl.HostnameVerifier {
/**
* Always return true, indicating that the Host name is an
* acceptable match with the server's authentication scheme.
*
* @param hostname the Host name.
* @param session the SSL session used on the connection to
* Host.
* @return the true boolean value
* indicating the Host name is trusted.
*/
public boolean verify(String hostname, String session) {
return(true);
} // verify
} // _FakeHostnameVerifier
/**
* This class allow any X509 certificates to be used to authenticate the
* remote side of a secure socket, including self-signed certificates. This
* class uses the old deprecated API from the com.Sun.ssl
* package.
*
* @author Francis Labrie
*
* @deprecated see {@link SSLUtilities.FakeX509TrustManager}.
*/
public static class _FakeX509TrustManager
implements com.Sun.net.ssl.X509TrustManager {
/**
* Empty array of certificate authority certificates.
*/
private static final X509Certificate[] _AcceptedIssuers =
new X509Certificate[] {};
/**
* Always return true, trusting for client SSL
* chain peer certificate chain.
*
* @param chain the peer certificate chain.
* @return the true boolean value
* indicating the chain is trusted.
*/
public boolean isClientTrusted(X509Certificate[] chain) {
return(true);
} // checkClientTrusted
/**
* Always return true, trusting for server SSL
* chain peer certificate chain.
*
* @param chain the peer certificate chain.
* @return the true boolean value
* indicating the chain is trusted.
*/
public boolean isServerTrusted(X509Certificate[] chain) {
return(true);
} // checkServerTrusted
/**
* Return an empty array of certificate authority certificates which
* are trusted for authenticating peers.
*
* @return a empty array of issuer certificates.
*/
public X509Certificate[] getAcceptedIssuers() {
return(_AcceptedIssuers);
} // getAcceptedIssuers
} // _FakeX509TrustManager
/**
* This class implements a fake hostname verificator, trusting any Host
* name.
*
* @author Francis Labrie
*/
public static class FakeHostnameVerifier implements HostnameVerifier {
/**
* Always return true, indicating that the Host name is
* an acceptable match with the server's authentication scheme.
*
* @param hostname the Host name.
* @param session the SSL session used on the connection to
* Host.
* @return the true boolean value
* indicating the Host name is trusted.
*/
public boolean verify(String hostname,
javax.net.ssl.SSLSession session) {
return(true);
} // verify
} // FakeHostnameVerifier
/**
* This class allow any X509 certificates to be used to authenticate the
* remote side of a secure socket, including self-signed certificates.
*
* @author Francis Labrie
*/
public static class FakeX509TrustManager implements X509TrustManager {
/**
* Empty array of certificate authority certificates.
*/
private static final X509Certificate[] _AcceptedIssuers =
new X509Certificate[] {};
/**
* Always trust for client SSL chain peer certificate
* chain with any authType authentication types.
*
* @param chain the peer certificate chain.
* @param authType the authentication type based on the client
* certificate.
*/
public void checkClientTrusted(X509Certificate[] chain,
String authType) {
} // checkClientTrusted
/**
* Always trust for server SSL chain peer certificate
* chain with any authType exchange algorithm types.
*
* @param chain the peer certificate chain.
* @param authType the key exchange algorithm used.
*/
public void checkServerTrusted(X509Certificate[] chain,
String authType) {
} // checkServerTrusted
/**
* Return an empty array of certificate authority certificates which
* are trusted for authenticating peers.
*
* @return a empty array of issuer certificates.
*/
public X509Certificate[] getAcceptedIssuers() {
return(_AcceptedIssuers);
} // getAcceptedIssuers
} // FakeX509TrustManager
} // SSLUtilities