blob: bd3680df61c15ad77e1a248ed2a9766dbc2a4ee4 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
package com.btr.proxy.util;
import java.net.Proxy;
import java.net.ProxySelector;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.btr.proxy.selector.fixed.FixedProxySelector;
import com.btr.proxy.selector.pac.PacProxySelector;
import com.btr.proxy.selector.pac.PacScriptSource;
import com.btr.proxy.selector.pac.UrlPacScriptSource;
import com.btr.proxy.util.Logger.LogLevel;
/*****************************************************************************
* Small helper class for some common utility methods.
*
* @author Bernd Rosstauscher (proxyvole@rosstauscher.de) Copyright 2009
****************************************************************************/
public class ProxyUtil {
public static final int DEFAULT_HTTP_PROXY_PORT = 80;
public static final int DEFAULT_SOCKS_PROXY_PORT = 1080;
private static List<Proxy> noProxyList;
private static Pattern pattern = Pattern.compile("^\\s*(\\w*?):?/*([^:/]+):?(\\d*)/?");
/*************************************************************************
* Parse host and port out of a proxy variable.
*
* @param proxyVar the proxy string. example: http://192.168.10.9:8080/
* @return a FixedProxySelector using this settings, null on parse error.
************************************************************************/
public static ProxySelector parseProxySettings(String proxyVar) {
return parseProxySettings(proxyVar, Proxy.Type.HTTP, 0);
}
public static ProxySelector parseProxySettings(String proxyVar, Proxy.Type fallback, int fallbackPort) {
if (proxyVar == null || proxyVar.trim().length() == 0) {
return null;
}
Matcher matcher = pattern.matcher(proxyVar);
if (matcher.matches()) {
String host = matcher.group(2);
int port = -1;
if (!"".equals(matcher.group(3))) {
port = Integer.parseInt(matcher.group(3));
}
String stype = matcher.group(1).toLowerCase();
Proxy.Type type;
if (stype.isEmpty()) {
type = fallback;
} else if (stype.startsWith("socks")) {
type = Proxy.Type.SOCKS;
} else {
type = Proxy.Type.HTTP;
}
if (port == -1 && fallbackPort > 0) {
port = fallbackPort;
}
if (port == -1) {
if (type == Proxy.Type.HTTP) {
port = DEFAULT_HTTP_PROXY_PORT;
} else if (type == Proxy.Type.SOCKS) {
port = DEFAULT_SOCKS_PROXY_PORT;
}
}
return new FixedProxySelector(type, host.trim(), port);
} else {
return null;
}
}
/*************************************************************************
* Gets an unmodifiable proxy list that will have as it's only entry an
* DIRECT proxy.
*
* @return a list with a DIRECT proxy in it.
************************************************************************/
public static synchronized List<Proxy> noProxyList() {
if (noProxyList == null) {
ArrayList<Proxy> list = new ArrayList<Proxy>(1);
list.add(Proxy.NO_PROXY);
noProxyList = Collections.unmodifiableList(list);
}
return noProxyList;
}
/*************************************************************************
* Build a PAC proxy selector for the given URL.
*
* @param url to fetch the PAC script from.
* @return a PacProxySelector or null if it is not possible to build a
* working
* selector.
************************************************************************/
public static PacProxySelector buildPacSelectorForUrl(final String url) {
Logger.log(ProxyUtil.class, LogLevel.TRACE, "Fetching PAC script from {0}", url);
final AtomicReference<PacProxySelector> result = new AtomicReference<>();
Thread t = new Thread() {
@Override
public void run() {
PacScriptSource pacSource = new UrlPacScriptSource(url);
if (pacSource.isScriptValid()) {
result.set(new PacProxySelector(pacSource));
}
}
};
t.start();
try {
t.join(2500);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
return result.get();
}
}
|
