| 1 | package be.nikiroo.utils; |
| 2 | |
| 3 | import java.net.Authenticator; |
| 4 | import java.net.PasswordAuthentication; |
| 5 | |
| 6 | /** |
| 7 | * Simple proxy helper to select a default internet proxy. |
| 8 | * |
| 9 | * @author niki |
| 10 | */ |
| 11 | public class Proxy { |
| 12 | /** |
| 13 | * Use the system proxy. |
| 14 | */ |
| 15 | static public void useSystemProxy() { |
| 16 | useSystemProxy(null, null); |
| 17 | } |
| 18 | |
| 19 | /** |
| 20 | * Use the system proxy with the given login/password, for authenticated |
| 21 | * proxies. |
| 22 | * |
| 23 | * @param user |
| 24 | * the user name or login |
| 25 | * @param password |
| 26 | * the password |
| 27 | */ |
| 28 | static public void useSystemProxy(String user, String password) { |
| 29 | System.setProperty("java.net.useSystemProxies", "true"); |
| 30 | auth(user, password); |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * Use the give proxy. |
| 35 | * |
| 36 | * @param host |
| 37 | * the proxy host name or IP address |
| 38 | * @param port |
| 39 | * the port to use |
| 40 | */ |
| 41 | static public void useProxy(String host, int port) { |
| 42 | useProxy(host, port, null, null); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Use the given proxy with the given login/password, for authenticated |
| 47 | * proxies. |
| 48 | * |
| 49 | * @param user |
| 50 | * the user name or login |
| 51 | * @param password |
| 52 | * the password |
| 53 | * @param host |
| 54 | * the proxy host name or IP address |
| 55 | * @param port |
| 56 | * the port to use |
| 57 | * @param user |
| 58 | * the user name or login |
| 59 | * @param password |
| 60 | * the password |
| 61 | */ |
| 62 | static public void useProxy(String host, int port, String user, |
| 63 | String password) { |
| 64 | System.setProperty("http.proxyHost", "proxy.stluc.ucl.ac.be"); |
| 65 | System.setProperty("http.proxyPort", "8080"); |
| 66 | auth(user, password); |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Select the default authenticator for proxy requests. |
| 71 | * |
| 72 | * @param user |
| 73 | * the user name or login |
| 74 | * @param password |
| 75 | * the password |
| 76 | */ |
| 77 | static private void auth(final String user, final String password) { |
| 78 | if (user != null && password != null) { |
| 79 | Authenticator proxy = new Authenticator() { |
| 80 | @Override |
| 81 | protected PasswordAuthentication getPasswordAuthentication() { |
| 82 | if (getRequestorType() == RequestorType.PROXY) { |
| 83 | return new PasswordAuthentication(user, |
| 84 | password.toCharArray()); |
| 85 | } |
| 86 | return null; |
| 87 | } |
| 88 | }; |
| 89 | Authenticator.setDefault(proxy); |
| 90 | } |
| 91 | } |
| 92 | } |