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875fbf21 N |
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 | } |