/*
* This file is part of the Wayback archival access software
* (http://archive-access.sourceforge.net/projects/wayback/).
*
* Licensed to the Internet Archive (IA) by one or more individual
* contributors.
*
* The IA licenses this file to You 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.archive.wayback.proxy;
import java.util.Date;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.archive.wayback.RequestParser;
import org.archive.wayback.archivalurl.requestparser.PathDatePrefixQueryRequestParser;
import org.archive.wayback.archivalurl.requestparser.PathDateRangeQueryRequestParser;
import org.archive.wayback.archivalurl.requestparser.PathPrefixDatePrefixQueryRequestParser;
import org.archive.wayback.archivalurl.requestparser.PathPrefixDateRangeQueryRequestParser;
import org.archive.wayback.archivalurl.requestparser.ReplayRequestParser;
import org.archive.wayback.core.WaybackRequest;
import org.archive.wayback.exception.BadQueryException;
import org.archive.wayback.exception.BetterRequestException;
import org.archive.wayback.memento.MementoUtils;
import org.archive.wayback.requestparser.CompositeRequestParser;
import org.archive.wayback.requestparser.FormRequestParser;
import org.archive.wayback.requestparser.OpenSearchRequestParser;
import org.archive.wayback.util.bdb.BDBMap;
import org.archive.wayback.webapp.AccessPoint;
/**
*
*
* @author brad
* @version $Date$, $Revision$
*/
public class ProxyArchivalRequestParser extends CompositeRequestParser {
private ProxyReplayRequestParser prrp = new ProxyReplayRequestParser(this);
protected RequestParser[] getRequestParsers() {
prrp.init();
RequestParser[] theParsers = {
prrp,
new PathDatePrefixQueryRequestParser(this),
new PathDateRangeQueryRequestParser(this),
new PathPrefixDatePrefixQueryRequestParser(this),
new PathPrefixDateRangeQueryRequestParser(this),
new ReplayRequestParser(this),
new OpenSearchRequestParser(this),
new FormRequestParser(this)
};
return theParsers;
}
public List<String> getLocalhostNames() {
return prrp.getLocalhostNames();
}
public void setLocalhostNames(List<String> localhostNames) {
prrp.setLocalhostNames(localhostNames);
}
public WaybackRequest parse(HttpServletRequest httpRequest,
AccessPoint wbContext) throws BadQueryException, BetterRequestException {
WaybackRequest wbRequest = super.parse(httpRequest, wbContext);
if (wbRequest != null) {
// First, try memento Accept-Datetime:
String replayDateStr = httpRequest.getHeader(MementoUtils.ACCEPT_DATETIME);
if (replayDateStr != null) {
Date date = MementoUtils.parseAcceptDateTimeHeader(replayDateStr);
if (date != null) {
wbRequest.setReplayDate(date);
wbRequest.setAnchorDate(date);
wbRequest.setMementoTimegate();
return wbRequest;
}
}
// Now, try custom timestamp header
replayDateStr = httpRequest.getHeader("Proxy-Timestamp");
if (replayDateStr == null) {
String id = httpRequest.getHeader("Proxy-Id");
if (id == null) {
id = httpRequest.getRemoteAddr();
}
// Get the id from the request.
// If no id, use the ip-address instead.
// Check if the parser parsed a replay request and found a
// timestamp. If so, then we need to store the timestamp and
// redirect, which is done with a BetterRequestException:
if (wbRequest.isReplayRequest()) {
String replayTimestamp = wbRequest.getReplayTimestamp();
if (replayTimestamp != null) {
BDBMap.addTimestampForId(httpRequest.getContextPath(),
id, replayTimestamp);
throw new BetterRequestException(wbRequest.getRequestUrl());
}
}
// Then get the timestamp (or rather datestr) matching this id.
// TODO: This is hacky - need generic way to store session data
replayDateStr = BDBMap.getTimestampForId(httpRequest.getContextPath(), id);
}
wbRequest.setReplayTimestamp(replayDateStr);
wbRequest.setAnchorTimestamp(replayDateStr);
}
return wbRequest;
}
/**
* @return the addDefaults
*/
public boolean isAddDefaults() {
return prrp.isAddDefaults();
}
/**
* @param addDefaults the addDefaults to set
*/
public void setAddDefaults(boolean addDefaults) {
prrp.setAddDefaults(addDefaults);
}
}