| /**************************************************************** |
| * Licensed to the Apache Software Foundation (ASF) under one * |
| * or more contributor license agreements. See the NOTICE file * |
| * distributed with this work for additional information * |
| * regarding copyright ownership. The ASF 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.apache.james.jmap.draft.methods; |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.function.Function; |
| import java.util.stream.Collectors; |
| |
| import jakarta.inject.Inject; |
| |
| import org.apache.james.core.Username; |
| import org.apache.james.jmap.draft.exceptions.JmapFieldNotSupportedException; |
| import org.apache.james.jmap.draft.model.AuthenticatedRequest; |
| import org.apache.james.jmap.methods.ErrorResponse; |
| import org.apache.james.jmap.methods.JmapResponse; |
| import org.apache.james.jmap.methods.JmapResponseWriter; |
| import org.apache.james.jmap.methods.Method; |
| import org.apache.james.jmap.model.InvocationResponse; |
| import org.apache.james.mailbox.MailboxSession; |
| import org.apache.james.util.MDCBuilder; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import reactor.core.publisher.Flux; |
| import reactor.core.publisher.Mono; |
| |
| public class RequestHandler { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(RequestHandler.class); |
| |
| private final JmapRequestParser jmapRequestParser; |
| private final JmapResponseWriter jmapResponseWriter; |
| private final Map<Method.Request.Name, Method> methods; |
| |
| @Inject |
| public RequestHandler(Set<Method> methods, JmapRequestParser jmapRequestParser, JmapResponseWriter jmapResponseWriter) { |
| this.jmapRequestParser = jmapRequestParser; |
| this.jmapResponseWriter = jmapResponseWriter; |
| this.methods = methods.stream() |
| .collect(Collectors.toMap(Method::requestHandled, Function.identity())); |
| } |
| |
| public Flux<InvocationResponse> handle(AuthenticatedRequest request) { |
| Optional<MailboxSession> mailboxSession = Optional.ofNullable(request.getMailboxSession()); |
| try (Closeable closeable = |
| MDCBuilder.create() |
| .addToContextIfPresent(MDCBuilder.USER, mailboxSession.map(MailboxSession::getUser).map(Username::asString)) |
| .addToContextIfPresent(MDCBuilder.SESSION_ID, mailboxSession.map(MailboxSession::getSessionId) |
| .map(MailboxSession.SessionId::getValue) |
| .map(l -> Long.toString(l))) |
| .addToContext(MDCBuilder.ACTION, request.getMethodName().getName()) |
| .build()) { |
| return Optional.ofNullable(methods.get(request.getMethodName())) |
| .map(extractAndProcess(request)) |
| .map(jmapResponseWriter::formatMethodResponse) |
| .orElseThrow(() -> new IllegalStateException("unknown method " + request.getMethodName())); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private Function<Method, Flux<JmapResponse>> extractAndProcess(AuthenticatedRequest request) { |
| MailboxSession mailboxSession = request.getMailboxSession(); |
| return (Method method) -> |
| Mono.fromCallable(() -> jmapRequestParser.extractJmapRequest(request, method.requestType())) |
| .flatMapMany(jmapRequest -> method.process(jmapRequest, request.getMethodCallId(), mailboxSession)) |
| .onErrorResume(JmapFieldNotSupportedException.class, e -> errorNotImplemented(e, request)) |
| .onErrorResume( |
| e -> e.getCause() instanceof JmapFieldNotSupportedException, |
| e -> errorNotImplemented((JmapFieldNotSupportedException) e.getCause(), request)) |
| .onErrorResume(IOException.class, e -> error(request, generateInvalidArgumentError(e.getMessage()))); |
| } |
| |
| public ErrorResponse generateInvalidArgumentError(String description) { |
| return ErrorResponse.builder() |
| .type("invalidArguments") |
| .description(description) |
| .build(); |
| } |
| |
| private Flux<JmapResponse> errorNotImplemented(JmapFieldNotSupportedException error, AuthenticatedRequest request) { |
| return Flux.just( |
| JmapResponse.builder() |
| .methodCallId(request.getMethodCallId()) |
| .error(generateInvalidArgumentError("The field '" + error.getField() + "' of '" + error.getIssuer() + "' is not supported")) |
| .build()); |
| } |
| |
| private Flux<JmapResponse> error(AuthenticatedRequest request, ErrorResponse error) { |
| return Flux.just( |
| JmapResponse.builder() |
| .methodCallId(request.getMethodCallId()) |
| .error(error) |
| .build()); |
| } |
| } |