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1
19
20 package com.maverick.http;
21
22 import java.text.MessageFormat  ;
23
24
30 public class HttpAuthenticatorFactory {
31
32 public static final String NTLM = "NTLM"; public static final String BASIC = "Basic"; public static final String DIGEST = "Digest"; public static final String NONE = "None";
37 static org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory.getLog(HttpAuthenticatorFactory.class);
39
40
42 public static HttpAuthenticator createAuthenticator(HttpConnection con, String [] challenges, String authenticationHeader,
43 String authorizationHeader, String pref, String uri)
44 throws UnsupportedAuthenticationException {
45
46 HttpAuthenticator authenticator = null;
47
48 String actualChallenge = "";
50 if (pref != null) {
51
52 boolean prefAvailable = false;
53 for (int x = 0; pref != null && x < challenges.length; x++) {
54 if (challenges[x].toLowerCase().startsWith(pref.toLowerCase())) {
55 prefAvailable = true;
56 actualChallenge = challenges[x];
57 break;
58 }
59 }
60
61 if (prefAvailable) {
62 if (pref.equalsIgnoreCase(BASIC)) {
63 authenticator = new BasicAuthentication(uri, con.getHost(), con.getPort(), con.isSecure());
64 } else if (pref.equalsIgnoreCase(NTLM)) {
65 authenticator = new NTLMAuthentication(uri, con.getHost(), con.getPort(), con.isSecure());
66 } else if (pref.equalsIgnoreCase(DIGEST)) {
67 authenticator = new DigestAuthentication(uri, con.getHost(), con.getPort(), con.isSecure());
68 }
69 }
70 }
71
72 if(authenticator==null) {
73
74 for (int i = 0; i < challenges.length; i++) {
76 String method = getAuthenticationMethod(challenges[i]);
77
78 if (method.equalsIgnoreCase(BASIC)) {
79 authenticator = new BasicAuthentication(uri, con.getHost(), con.getPort(), con.isSecure());
80 } else if (method.equalsIgnoreCase(NTLM)) {
81 authenticator = new NTLMAuthentication(uri, con.getHost(), con.getPort(), con.isSecure());
82 } else if (method.equalsIgnoreCase(DIGEST)) {
83 authenticator = new DigestAuthentication(uri, con.getHost(), con.getPort(), con.isSecure());
84 }
85
86 if (authenticator != null) {
87 actualChallenge = challenges[i];
88 break;
89 }
90 }
91 }
92 if (authenticator != null) {
93 log.info(MessageFormat.format(Messages.getString("HttpAuthenticatorFactory.created"), new Object [] { authenticator.getScheme() }));
97 authenticator.setConnection(con);
98 authenticator.setChallenge(actualChallenge);
99 authenticator.setAuthenicationHeader(authenticationHeader);
100 authenticator.setAuthorizationHeader(authorizationHeader);
101
102 return authenticator;
103 }
104
105 if (pref == null)
106 throw new UnsupportedAuthenticationException(challenges);
107 else
108 throw new UnsupportedAuthenticationException(challenges,
109 MessageFormat.format(Messages.getString("HttpAuthenticatorFactory.notSupported"), new Object [] { pref })); }
111
112 public static String getAuthenticationMethod(String challenge) {
113 String method = challenge;
114
115 if (method != null) {
116 int n = method.indexOf(' ');
117 if (n > -1)
118 method = method.substring(0, n);
119 }
120
121 return method;
122 }
123
124 public String getAuthenticationRealm(String challenge) {
125 String auth = challenge;
126 String realm = "";
128 if (auth != null) {
129 int l;
130 int r = auth.indexOf('=');
131
132 while (r >= 0) {
133 l = auth.lastIndexOf(' ', r);
134 realm = auth.substring(l + 1, r);
135
136 if (realm.equalsIgnoreCase("realm")) { l = r + 2;
138 r = auth.indexOf('"', l);
139 realm = auth.substring(l, r);
140
141 break;
142 }
143
144 r = auth.indexOf('=', r + 1);
145 }
146 }
147
148 return realm;
149 }
150 }
151 |
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