/*
* Zed Attack Proxy (ZAP) and its related class files.
*
* ZAP is an HTTP/HTTPS proxy for assessing web application security.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.zaproxy.zap.spider.filters;
import org.apache.commons.httpclient.URI;
import org.apache.log4j.Logger;
/**
* A FetchFilter is used to filter which resources should be fetched and processed by the Spider and
* which shouldn't. This filter is applied before adding the resource in the processing queue.
*/
public abstract class FetchFilter {
/**
* The FetchStatus enum is used as the status returned by a FetchFilter, stating if the uri is
* accepted or, if not, why was it not accepted.
*/
public enum FetchStatus {
/** The uri is VALID. */
VALID,
/** The uri is VALID and is a seed. **/
SEED,
/** The uri is out of context. */
OUT_OF_CONTEXT,
/** The uri is out of scope. */
OUT_OF_SCOPE,
/** The uri has an illegal protocol. */
ILLEGAL_PROTOCOL,
/** The The uri is skipped because of user rules. */
USER_RULES
};
/** The Constant log. */
protected static final Logger log = Logger.getLogger(FetchFilter.class);
/**
* Checks if the uri must be ignored and not processed and return the filter status.
*
* @param uri the uri to be processed
* @return the fetch status, stating if the uri is accepted or, if not, why was it not accepted.
*/
public abstract FetchStatus checkFilter(URI uri);
}