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 package org.apache.commons.httpclient.params;
31
32 import java.util.ArrayList;
33 import java.util.Arrays;
34
35 import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
36 import org.apache.commons.httpclient.HttpVersion;
37 import org.apache.commons.httpclient.SimpleHttpConnectionManager;
38 import org.apache.commons.httpclient.cookie.CookiePolicy;
39 import org.apache.commons.httpclient.util.DateUtil;
40
41 /***
42 * TODO: comment type
43 *
44 * @since 3.0
45 */
46 public class DefaultHttpParamsFactory implements HttpParamsFactory {
47
48 private HttpParams httpParams;
49
50 /***
51 *
52 */
53 public DefaultHttpParamsFactory() {
54 super();
55 }
56
57
58
59
60 public synchronized HttpParams getDefaultParams() {
61 if (httpParams == null) {
62 httpParams = createParams();
63 }
64
65 return httpParams;
66 }
67
68 protected HttpParams createParams() {
69 HttpClientParams params = new HttpClientParams(null);
70
71 params.setParameter(HttpMethodParams.USER_AGENT, "Jakarta Commons-HttpClient/3.0-rc4");
72 params.setVersion(HttpVersion.HTTP_1_1);
73 params.setConnectionManagerClass(SimpleHttpConnectionManager.class);
74 params.setCookiePolicy(CookiePolicy.RFC_2109);
75 params.setHttpElementCharset("US-ASCII");
76 params.setContentCharset("ISO-8859-1");
77 params.setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler());
78
79 ArrayList datePatterns = new ArrayList();
80 datePatterns.addAll(
81 Arrays.asList(
82 new String[] {
83 DateUtil.PATTERN_RFC1123,
84 DateUtil.PATTERN_RFC1036,
85 DateUtil.PATTERN_ASCTIME,
86 "EEE, dd-MMM-yyyy HH:mm:ss z",
87 "EEE, dd-MMM-yyyy HH-mm-ss z",
88 "EEE, dd MMM yy HH:mm:ss z",
89 "EEE dd-MMM-yyyy HH:mm:ss z",
90 "EEE dd MMM yyyy HH:mm:ss z",
91 "EEE dd-MMM-yyyy HH-mm-ss z",
92 "EEE dd-MMM-yy HH:mm:ss z",
93 "EEE dd MMM yy HH:mm:ss z",
94 "EEE,dd-MMM-yy HH:mm:ss z",
95 "EEE,dd-MMM-yyyy HH:mm:ss z",
96 "EEE, dd-MM-yyyy HH:mm:ss z",
97 }
98 )
99 );
100 params.setParameter(HttpMethodParams.DATE_PATTERNS, datePatterns);
101
102
103 String agent = null;
104 try {
105 agent = System.getProperty("httpclient.useragent");
106 } catch (SecurityException ignore) {
107 }
108 if (agent != null) {
109 params.setParameter(HttpMethodParams.USER_AGENT, agent);
110 }
111
112
113 String preemptiveDefault = null;
114 try {
115 preemptiveDefault = System.getProperty("httpclient.authentication.preemptive");
116 } catch (SecurityException ignore) {
117 }
118 if (preemptiveDefault != null) {
119 preemptiveDefault = preemptiveDefault.trim().toLowerCase();
120 if (preemptiveDefault.equals("true")) {
121 params.setParameter(HttpClientParams.PREEMPTIVE_AUTHENTICATION, "on");
122 } else if (preemptiveDefault.equals("false")) {
123 params.setParameter(HttpClientParams.PREEMPTIVE_AUTHENTICATION, "off");
124 }
125 }
126
127
128 String defaultCookiePolicy = null;
129 try {
130 defaultCookiePolicy = System.getProperty("apache.commons.httpclient.cookiespec");
131 } catch (SecurityException ignore) {
132 }
133 if (defaultCookiePolicy != null) {
134 if ("COMPATIBILITY".equalsIgnoreCase(defaultCookiePolicy)) {
135 params.setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
136 } else if ("NETSCAPE_DRAFT".equalsIgnoreCase(defaultCookiePolicy)) {
137 params.setCookiePolicy(CookiePolicy.NETSCAPE);
138 } else if ("RFC2109".equalsIgnoreCase(defaultCookiePolicy)) {
139 params.setCookiePolicy(CookiePolicy.RFC_2109);
140 }
141 }
142
143 return params;
144 }
145
146 }