Discussion :

[KING_OF_GRACELAND]

salut,

est il possible de se connecter a un serveur distant ( File System quelqconque ) en HTTPS ( obligé ! ) afin de récupérer plusieurs fichiers de données..et bien sur en java?

si Oui, quels conditions doievent etre satisfaite pour que cela puisse etre possible( login/password, securite, ...etc)

merci

[behess]

tu tapes java https

http://www.javaworld.com/javaworld/j...javatip96.html
http://java.sun.com/products/plugin/1.2/docs/https.html

[KING_OF_GRACELAND]

tu tapes java https

http://www.javaworld.com/javaworld/j...javatip96.html
http://java.sun.com/products/plugin/1.2/docs/https.html

Je ne trouve pas d'exemples ni des tutoriaux ici !! en plus sur google c'est pas tres bien précis ...aurais tu un bon lien?

merci

[behess]

Cela répond à ta question :

oui il est possible de se connecter à distance à un serveur en HTTPS en java et de récupérer des données.

Après si tu veux une réponse plus précise, il va falloir développer ta question

[behess]

Cf le package javax.net.ssl :

http://javasearch.developpez.com/j2s...onnection.html
http://java.sun.com/j2se/1.4.2/docs/...e-summary.html

[KING_OF_GRACELAND]

en effet j'ai essaye de tester un exemple mais j'ai obtenu l'exception suivante

Code :

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Exception in thread "main" javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:174)
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1591)
	at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:187)
	at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:181)
	at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:975)
	at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:123)
	at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:516)
	at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:454)
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:884)
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1096)
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1123)
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1107)
	at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:405)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:166)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:977)
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:234)
	at HTTPSConnector.main(HTTPSConnector.java:32)
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:285)
	at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:191)
	at sun.security.validator.Validator.validate(Validator.java:218)
	at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:126)
	at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:209)
	at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:249)
	at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:954)
	... 12 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:174)
	at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:238)
	at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:280)
	... 18 more

voiçi l'exemple:

Code :

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mport java.net.URL;
import java.io.*;
import javax.net.ssl.HttpsURLConnection;
 
public class HTTPSConnector
{
  public static void main(String[] args)
  throws Exception
  {
    String httpsURL = "https://your.https.url.here/";
    URL myurl = new URL(httpsURL);
    HttpsURLConnection con = (HttpsURLConnection)myurl.openConnection();
    InputStream ins = con.getInputStream();
    InputStreamReader isr=new InputStreamReader(ins);
    BufferedReader in =new BufferedReader(isr);
 
    String inputLine;
 
    while ((inputLine = in.readLine()) != null)
        System.out.println(inputLine);
 
    in.close();
 
  }
}

il parait qu'il faut injecter le certificat dans la connection ( je pense) alors comment palier cela?