Admin: 1 версия

2010-06-01T07:20:02Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:47Z

Новая страница

== Accessing a Password-Protected URL ==



<source lang="java">

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.Authenticator;
import java.net.InetAddress;
import java.net.PasswordAuthentication;
import java.net.URL;
public class Main {
public static void main(String[] argv) throws Exception {
Authenticator.setDefault(new MyAuthenticator());
URL url = new URL("http://hostname:80/index.html");
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
String str;
while ((str = in.readLine()) != null) {
System.out.println(str);
}
in.close();
}
}
class MyAuthenticator extends Authenticator {

protected PasswordAuthentication getPasswordAuthentication() {
String promptString = getRequestingPrompt();
System.out.println(promptString);
String hostname = getRequestingHost();
System.out.println(hostname);
InetAddress ipaddr = getRequestingSite();
System.out.println(ipaddr);
int port = getRequestingPort();
String username = "name";
String password = "password";
return new PasswordAuthentication(username, password.toCharArray());
}
}

</source>



== Certification for HTTPS ==



<source lang="java">

import java.io.FileOutputStream;
import java.io.ObjectOutputStream;
import java.security.cert.CertPath;
import java.security.cert.CertificateFactory;
import java.util.ArrayList;
import java.util.List;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
public class MainClass {
public static void main(String args[]) throws Exception {
SSLSocketFactory factory = HttpsURLConnection.getDefaultSSLSocketFactory();
SSLSocket socket = (SSLSocket) factory.createSocket("127.0.0.1", 9999);
socket.startHandshake();
SSLSession session = socket.getSession();
java.security.cert.Certificate[] servercerts = session.getPeerCertificates();
List mylist = new ArrayList();
for (int i = 0; i < servercerts.length; i++) {
mylist.add(servercerts[i]);
}
CertificateFactory cf = CertificateFactory.getInstance("X.509");
CertPath cp = cf.generateCertPath(mylist);
FileOutputStream f = new FileOutputStream("CertPath.dat");
ObjectOutputStream b = new ObjectOutputStream(f);
b.writeObject(cp);
}
}

</source>



== Disabling Certificate Validation in an HTTPS Connection ==



<source lang="java">

import java.net.URL;
import java.security.cert.X509Certificate;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
public class Main {
public static void main(String[] argv) throws Exception {
TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(X509Certificate[] certs, String authType) {
}
public void checkServerTrusted(X509Certificate[] certs, String authType) {
}
} };
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, trustAllCerts, new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
URL url = new URL("https://hostname/index.html");
}
}

</source>



== Dump a page using the HTTPS protocol ==



<source lang="java">

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class Main {
public static void main(String[] argv) throws Exception {
URL url = new URL("https://www.server.ru");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null)
System.out.println(inputLine);
in.close();
}
}

</source>



== Read data from a URL ==



<source lang="java">

//Corrected version by Quentin Nerden (kenden at gmail dot com)

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class WebReader {
static void getData(String address) throws Exception {
URL page = new URL(address);
StringBuffer text = new StringBuffer();
HttpURLConnection conn = (HttpURLConnection) page.openConnection();
conn.connect();
InputStreamReader in = new InputStreamReader((InputStream) conn.getContent());

BufferedReader buff = new BufferedReader(in);
String line = buff.readLine();
while (line != null) {
text.append(line + "\n");
line = buff.readLine();
}
System.out.println(text.toString());
}
public static void main(String[] arguments) throws Exception {
getData("http://jexp.ru");
}
}

</source>

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Java/Network Protocol/HttpsURLConnection - История изменений

Admin: 1 версия

в 18:01, 31 мая 2010