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    1   /* Copyright 2004, 2005 Acegi Technology Pty Limited
    2    *
    3    * Licensed under the Apache License, Version 2.0 (the "License");
    4    * you may not use this file except in compliance with the License.
    5    * You may obtain a copy of the License at
    6    *
    7    *     http://www.apache.org/licenses/LICENSE-2.0
    8    *
    9    * Unless required by applicable law or agreed to in writing, software
    10   * distributed under the License is distributed on an "AS IS" BASIS,
    11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12   * See the License for the specific language governing permissions and
    13   * limitations under the License.
    14   */
    15  package org.acegisecurity.captcha;
    16
    17  /***
    18   * <p>
    19   * return false if thresold is greater than millis since last captcha test has occured;<br>
    20   * Default keyword : REQUIRES_CAPTCHA_AFTER_THRESOLD_IN_MILLIS
    21   * </p>
    22   *
    23   * @author Marc-Antoine Garrigue
    24   * @version $Id: AlwaysTestAfterTimeInMillisCaptchaChannelProcessor.java,v 1.2 2005/11/17 00:55:49 benalex Exp $
    25   */
    26  public class AlwaysTestAfterTimeInMillisCaptchaChannelProcessor
    27      extends CaptchaChannelProcessorTemplate {
    28      //~ Static fields/initializers =============================================
    29
    30      /*** Keyword for this channelProcessor */
    31      public static final String DEFAULT_KEYWORD = "REQUIRES_CAPTCHA_AFTER_THRESOLD_IN_MILLIS";
    32
    33      //~ Constructors ===========================================================
    34
    35      /***
    36       * Constructor
    37       */
    38      public AlwaysTestAfterTimeInMillisCaptchaChannelProcessor() {
    39          super();
    40          this.setKeyword(DEFAULT_KEYWORD);
    41      }
    42
    43      //~ Methods ================================================================
    44
    45      /***
    46       * Verify wheter the context is valid concerning humanity
    47       *
    48       * @param context the CaptchaSecurityContext
    49       *
    50       * @return true if valid, false otherwise
    51       */
    52      boolean isContextValidConcerningHumanity(CaptchaSecurityContext context) {
    53          if ((System.currentTimeMillis()
    54              - context.getLastPassedCaptchaDateInMillis()) < getThresold()) {
    55              logger.debug(
    56                  "context is valid : last passed captcha date - current time < thresold");
    57
    58              return true;
    59          } else {
    60              logger.debug(
    61                  "context is not valid : last passed captcha date - current time > thresold");
    62
    63              return false;
    64          }
    65      }
    66  }