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    1   /*
    2    * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//httpclient/src/java/org/apache/commons/httpclient/params/DefaultHttpParamsFactory.java,v 1.16 2004/11/20 21:48:47 mbecke Exp $
    3    * $Revision: 566065 $
    4    * $Date: 2007-08-15 10:34:30 +0200 (Wed, 15 Aug 2007) $
    5    *
    6    * ====================================================================
    7    *
    8    *  Licensed to the Apache Software Foundation (ASF) under one or more
    9    *  contributor license agreements.  See the NOTICE file distributed with
    10   *  this work for additional information regarding copyright ownership.
    11   *  The ASF licenses this file to You under the Apache License, Version 2.0
    12   *  (the "License"); you may not use this file except in compliance with
    13   *  the License.  You may obtain a copy of the License at
    14   *
    15   *      http://www.apache.org/licenses/LICENSE-2.0
    16   *
    17   *  Unless required by applicable law or agreed to in writing, software
    18   *  distributed under the License is distributed on an "AS IS" BASIS,
    19   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    20   *  See the License for the specific language governing permissions and
    21   *  limitations under the License.
    22   * ====================================================================
    23   *
    24   * This software consists of voluntary contributions made by many
    25   * individuals on behalf of the Apache Software Foundation.  For more
    26   * information on the Apache Software Foundation, please see
    27   * <http://www.apache.org/>.
    28   *
    29   */
    30
    31  package org.apache.commons.httpclient.params;
    32
    33  import java.util.ArrayList;
    34  import java.util.Arrays;
    35
    36  import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
    37  import org.apache.commons.httpclient.HttpVersion;
    38  import org.apache.commons.httpclient.SimpleHttpConnectionManager;
    39  import org.apache.commons.httpclient.cookie.CookiePolicy;
    40  import org.apache.commons.httpclient.util.DateUtil;
    41
    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      /* (non-Javadoc)
    57       * @see org.apache.commons.httpclient.params.HttpParamsFactory#getDefaultParams()
    58       */
    59      public synchronized 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/3.1");
    71          params.setVersion(HttpVersion.HTTP_1_1);
    72          params.setConnectionManagerClass(SimpleHttpConnectionManager.class);
    73          params.setCookiePolicy(CookiePolicy.DEFAULT);
    74          params.setHttpElementCharset("US-ASCII");
    75          params.setContentCharset("ISO-8859-1");
    76          params.setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler());
    77
    78          ArrayList datePatterns = new ArrayList();
    79          datePatterns.addAll(
    80              Arrays.asList(
    81                  new String[] {
    82                      DateUtil.PATTERN_RFC1123,
    83                      DateUtil.PATTERN_RFC1036,
    84                      DateUtil.PATTERN_ASCTIME,
    85                      "EEE, dd-MMM-yyyy HH:mm:ss z",
    86                      "EEE, dd-MMM-yyyy HH-mm-ss z",
    87                      "EEE, dd MMM yy 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-yyyy 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-yy HH:mm:ss z",
    94                      "EEE,dd-MMM-yyyy HH:mm:ss z",
    95                      "EEE, dd-MM-yyyy HH:mm:ss z",
    96                  }
    97              )
    98          );
    99          params.setParameter(HttpMethodParams.DATE_PATTERNS, datePatterns);
    100
    101         // TODO: To be removed. Provided for backward compatibility
    102         String agent = null;
    103         try {
    104             agent = System.getProperty("httpclient.useragent");
    105         } catch (SecurityException ignore) {
    106         }
    107         if (agent != null) {
    108             params.setParameter(HttpMethodParams.USER_AGENT, agent);
    109         }
    110
    111         // TODO: To be removed. Provided for backward compatibility
    112         String preemptiveDefault = null;
    113         try {
    114             preemptiveDefault = System.getProperty("httpclient.authentication.preemptive");
    115         } catch (SecurityException ignore) {
    116         }
    117         if (preemptiveDefault != null) {
    118             preemptiveDefault = preemptiveDefault.trim().toLowerCase();
    119             if (preemptiveDefault.equals("true")) {
    120                 params.setParameter(HttpClientParams.PREEMPTIVE_AUTHENTICATION, Boolean.TRUE);
    121             } else if (preemptiveDefault.equals("false")) {
    122                 params.setParameter(HttpClientParams.PREEMPTIVE_AUTHENTICATION, Boolean.FALSE);
    123             }
    124         }
    125
    126         // TODO: To be removed. Provided for backward compatibility
    127         String defaultCookiePolicy = null;
    128         try {
    129             defaultCookiePolicy = System.getProperty("apache.commons.httpclient.cookiespec");
    130         } catch (SecurityException ignore) {
    131         }
    132         if (defaultCookiePolicy != null) {
    133             if ("COMPATIBILITY".equalsIgnoreCase(defaultCookiePolicy)) {
    134                 params.setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
    135             } else if ("NETSCAPE_DRAFT".equalsIgnoreCase(defaultCookiePolicy)) {
    136                 params.setCookiePolicy(CookiePolicy.NETSCAPE);
    137             } else if ("RFC2109".equalsIgnoreCase(defaultCookiePolicy)) {
    138                 params.setCookiePolicy(CookiePolicy.RFC_2109);
    139             }
    140         }
    141
    142         return params;
    143     }
    144
    145 }