[Java lista] RSA kulcsos kódolás

[Andras Dobrosi]

package hu.remedios.mpp.common;

import java.net.*;
import javax.net.ssl.*;
import java.security.*;
import java.io.*;

/**
 * @author andris
 *
 */
public class LightClient {
    private boolean httpsMode;

    private String keystoreFileName;

    private HttpsURLConnection httpsconn;

    private HttpURLConnection httpconn;

    private String urlstr;

    private PrintWriter pout;

    private int lastResponseCode;

    private String lastResponseContent;

    private String keyStorePassword;

    private String truststoreFileName;

    private String trustStorePassword;


    public LightClient() {
    }
    public LightClient(String keystoreFileName, String keyStorePassword,
String truststoreFileName, String trustStorePassword) {
        init(keystoreFileName, keyStorePassword, truststoreFileName,
trustStorePassword);
    }

    public void init (String keystoreFileName, String keyStorePassword,
String truststoreFileName, String trustStorePassword) {
        this.keystoreFileName = keystoreFileName;
        this.keyStorePassword = keyStorePassword;
        this.truststoreFileName = truststoreFileName;
        this.trustStorePassword = trustStorePassword;
    }

    private void open(String method, String urlstr) {
        try {
            this.urlstr = urlstr;
            httpsMode = urlstr.startsWith("https://");
            HostnameVerifier hv = new HostnameVerifier() {
                public boolean verify(String urlHostName, SSLSession
session) {
                    System.out.println("Warning: URL Host: "+urlHostName+"
vs. "+session.getPeerHost());
                    return true;
                }
            };

            HttpsURLConnection.setDefaultHostnameVerifier(hv);

            URL url = new URL(urlstr);

            if(httpsMode) {
                System.setProperty("java.protocol.handler.pkgs","
javax.net.ssl");
                Security.setProperty("java.protocol.handler.pkgs","
javax.net.ssl");
                System.setProperty("javax.net.ssl.keyStore",
keystoreFileName);
System.out.println("keystore file: " + keystoreFileName);
                System.setProperty("javax.net.ssl.keyStorePassword",
keyStorePassword);
                System.setProperty("javax.net.ssl.trustStore",
truststoreFileName);
                System.setProperty("javax.net.ssl.trustStorePassword",
trustStorePassword);
                httpsconn = (HttpsURLConnection) url.openConnection();
                httpconn = (HttpURLConnection)httpsconn;
                // read results...
            } else {
                httpconn = (HttpURLConnection) url.openConnection();
            }

            httpconn.setRequestMethod(method);
            httpconn.setDoInput(true);
            if(method.equalsIgnoreCase("POST")) {
                httpconn.setDoOutput(true);
                pout = new PrintWriter(new OutputStreamWriter(httpconn
                        .getOutputStream()), true);
            }


        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void close() {
        if(pout != null) pout.close();
        httpconn.disconnect();
    }

    private String receiveResponse() throws IOException {
        String res = "";
        String line = "";

        lastResponseCode = httpconn.getResponseCode();
        System.out.println("ResponseCode:" + lastResponseCode);
        if (lastResponseCode < 500/*HttpURLConnection.HTTP_OK*/)
            System.out.println("Posted ok!");
        else {
            System.out.println("Bad post...\n");
            throw new IOException();
        }
        InputStream s1 = httpconn.getInputStream();
        BufferedReader in = new BufferedReader(new InputStreamReader(s1));
        while ((line = in.readLine()) != null)
            res += line;
        lastResponseContent = res;

        return res;

    }

    /**
     * @param xml
     * @throws IOException
     */
    public void get(String urlstr) throws IOException {
        System.out.println("GET " + urlstr);
        open("GET", urlstr);
        System.out.println(receiveResponse());
        close();
    }
    public void post(String urlstr, String xml) throws IOException {
        System.out.println("POST " + urlstr);
        open("POST", urlstr);
        pout.print(xml);
        pout.flush();
        System.out.println("response:" + receiveResponse());
        close();
    }
    public int getLastResponseCode() {
        return lastResponseCode;
    }
    public String getLastResponseContent() {
        return lastResponseContent;
    }

    public static void main(String[] args) {
        try {
            LightClient lc = new LightClient(args[2], args[3], args[4],
args[5]);
            try {
                if(args[0].equalsIgnoreCase("POST")) {
                    lc.post(args[1], "Hello World!");
                } else if(args[0].equalsIgnoreCase("GET")) {
                    lc.get(args[1]);
                } else throw new ArrayIndexOutOfBoundsException();
                System.out.println("Code:" + lc.getLastResponseCode());
                System.out.println("Content:" + lc.getLastResponseContent
());
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            System.out.println("Content:" + lc.getLastResponseContent());

        } catch (ArrayIndexOutOfBoundsException e) {
            System.out.println("java LightClient <POST|GET>
<keystoreFileName> <keyStorePassword> <truststoreFileName>
<trustStorePassword>");
        }
    }
    /**
     * @return Returns the urlstr.
     */
    public String getUrlstr() {
        return urlstr;
    }
    /**
     * @param urlstr The urlstr to set.
     */
    public void setUrlstr(String urlstr) {
        this.urlstr = urlstr;
    }
}

On 10/19/06, Olaj Péter <polaj at iqs.hu> wrote:
>
> Sziasztok!
>
> Egy Java progiból adatokat kellene küldeni és fogadni egy külső
> rendszertől kódolva. A külső rendszer (nem Java, PHP) üzemeltetői adják
> meg a .cert, .key kulcsokat és a passpharse-t. Kaptam egy PHP progit,
> amiben működik a dolog a kulcsokkal, szépen kódol és dekódol, viszont a
> Javas megvalósítással elakadtam. Tud valaki küldeni esetleg egy működő
> kódrészletet? Vagy valami példát, linket, stb?
>
> Köszönettel
> Olaj Péter
> _______________________________________________
> Javalist mailing list
> Javalist at javagrund.hu
> http://javagrund.hu/mailman/listinfo/javalist
>
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