116 lines
4.0 KiB
Java
116 lines
4.0 KiB
Java
/*
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* This file is part of BlueMap, licensed under the MIT License (MIT).
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*
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* Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
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* Copyright (c) contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package de.bluecolored.bluemap.common.web;
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import de.bluecolored.bluemap.api.debug.DebugDump;
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import de.bluecolored.bluemap.common.web.http.HttpRequest;
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import de.bluecolored.bluemap.common.web.http.HttpRequestHandler;
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import de.bluecolored.bluemap.common.web.http.HttpResponse;
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import de.bluecolored.bluemap.common.web.http.HttpStatusCode;
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import org.intellij.lang.annotations.Language;
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import java.util.LinkedList;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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@DebugDump
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public class RoutingRequestHandler implements HttpRequestHandler {
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public LinkedList<Route> routes;
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public RoutingRequestHandler() {
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this.routes = new LinkedList<>();
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}
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public void register(@Language("RegExp") String pattern, HttpRequestHandler handler) {
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register(Pattern.compile(pattern), handler);
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}
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public void register(@Language("RegExp") String pattern, String replacementRoute, HttpRequestHandler handler) {
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register(Pattern.compile(pattern), replacementRoute, handler);
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}
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public void register(Pattern pattern, HttpRequestHandler handler) {
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this.routes.addFirst(new Route(pattern, handler));
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}
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public void register(Pattern pattern, String replacementRoute, HttpRequestHandler handler) {
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this.routes.addFirst(new Route(pattern, replacementRoute, handler));
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}
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@Override
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public HttpResponse handle(HttpRequest request) {
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String path = request.getPath();
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// normalize path
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if (path.startsWith("/")) path = path.substring(1);
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if (path.isEmpty()) path = "/";
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for (Route route : routes) {
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Matcher matcher = route.getRoutePattern().matcher(path);
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if (matcher.matches()) {
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request.setPath(matcher.replaceFirst(route.getReplacementRoute()));
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return route.getHandler().handle(request);
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}
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}
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return new HttpResponse(HttpStatusCode.BAD_REQUEST);
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}
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@DebugDump
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private static class Route {
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private final Pattern routePattern;
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private final HttpRequestHandler handler;
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private final String replacementRoute;
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public Route(Pattern routePattern, HttpRequestHandler handler) {
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this.routePattern = routePattern;
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this.replacementRoute = "$0";
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this.handler = handler;
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}
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public Route(Pattern routePattern, String replacementRoute, HttpRequestHandler handler) {
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this.routePattern = routePattern;
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this.replacementRoute = replacementRoute;
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this.handler = handler;
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}
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public Pattern getRoutePattern() {
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return routePattern;
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}
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public HttpRequestHandler getHandler() {
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return handler;
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}
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public String getReplacementRoute() {
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return replacementRoute;
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}
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}
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}
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