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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.HttpVersion;
36 import org.apache.commons.httpclient.SimpleHttpConnectionManager;
37 import org.apache.commons.httpclient.cookie.CookiePolicy;
38 import org.apache.commons.httpclient.util.DateParser;
39
40 /***
41 * TODO: comment type
42 *
43 * @since 3.0
44 */
45 public class DefaultHttpParamsFactory implements HttpParamsFactory {
46
47 private HttpParams httpParams;
48
49 /***
50 *
51 */
52 public DefaultHttpParamsFactory() {
53 super();
54 }
55
56
57
58
59 public HttpParams getDefaultParams() {
60 if (httpParams == null) {
61 httpParams = createParams();
62 }
63
64 return httpParams;
65 }
66
67 protected HttpParams createParams() {
68 HttpClientParams params = new HttpClientParams(null);
69
70 params.setParameter(HttpMethodParams.USER_AGENT, "Jakarta Commons-HttpClient/3.0-alpha1");
71 params.setVersion(HttpVersion.HTTP_1_1);
72 params.setConnectionManagerClass(SimpleHttpConnectionManager.class);
73 params.setCookiePolicy(CookiePolicy.RFC_2109);
74 params.setHttpElementCharset("US-ASCII");
75 params.setContentCharset("ISO-8859-1");
76
77 ArrayList datePatterns = new ArrayList();
78 datePatterns.addAll(
79 Arrays.asList(
80 new String[] {
81 DateParser.PATTERN_RFC1123,
82 DateParser.PATTERN_RFC1036,
83 DateParser.PATTERN_ASCTIME,
84 "EEE, dd-MMM-yyyy HH:mm:ss z",
85 "EEE, dd-MMM-yyyy HH-mm-ss z",
86 "EEE, dd MMM yy HH:mm:ss z",
87 "EEE dd-MMM-yyyy HH:mm:ss z",
88 "EEE dd MMM yyyy HH:mm:ss z",
89 "EEE dd-MMM-yyyy HH-mm-ss z",
90 "EEE dd-MMM-yy HH:mm:ss z",
91 "EEE dd MMM yy HH:mm:ss z",
92 "EEE,dd-MMM-yy HH:mm:ss z",
93 "EEE,dd-MMM-yyyy HH:mm:ss z",
94 "EEE, dd-MM-yyyy HH:mm:ss z",
95 }
96 )
97 );
98 params.setParameter(DateParser.KEY_DATE_PATTERNS, datePatterns);
99
100
101 String agent = null;
102 try {
103 agent = System.getProperty("httpclient.useragent");
104 } catch (SecurityException ignore) {
105 }
106 if (agent != null) {
107 params.setParameter(HttpMethodParams.USER_AGENT, agent);
108 }
109
110
111 String preemptiveDefault = null;
112 try {
113 preemptiveDefault = System.getProperty("httpclient.authentication.preemptive");
114 } catch (SecurityException ignore) {
115 }
116 if (preemptiveDefault != null) {
117 preemptiveDefault = preemptiveDefault.trim().toLowerCase();
118 if (preemptiveDefault.equals("true")) {
119 params.setParameter(HttpClientParams.PREEMPTIVE_AUTHENTICATION, "on");
120 } else if (preemptiveDefault.equals("false")) {
121 params.setParameter(HttpClientParams.PREEMPTIVE_AUTHENTICATION, "off");
122 }
123 }
124
125
126 String defaultCookiePolicy = null;
127 try {
128 defaultCookiePolicy = System.getProperty("apache.commons.httpclient.cookiespec");
129 } catch (SecurityException ignore) {
130 }
131 if (defaultCookiePolicy != null) {
132 if ("COMPATIBILITY".equalsIgnoreCase(defaultCookiePolicy)) {
133 params.setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
134 } else if ("NETSCAPE_DRAFT".equalsIgnoreCase(defaultCookiePolicy)) {
135 params.setCookiePolicy(CookiePolicy.NETSCAPE);
136 } else if ("RFC2109".equalsIgnoreCase(defaultCookiePolicy)) {
137 params.setCookiePolicy(CookiePolicy.RFC_2109);
138 }
139 }
140
141 return params;
142 }
143
144 }