--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.net.http/share/classes/jdk/internal/net/http/ResponseBodyHandlers.java Wed Feb 07 21:45:37 2018 +0000
@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.internal.net.http;
+
+import java.io.IOException;
+import java.net.URI;
+import java.nio.file.OpenOption;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.security.AccessControlContext;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ConcurrentMap;
+import java.util.function.Function;
+import java.net.http.HttpHeaders;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.net.http.HttpResponse.BodyHandler;
+import java.net.http.HttpResponse.BodySubscriber;
+import jdk.internal.net.http.ResponseSubscribers.PathSubscriber;
+import static jdk.internal.net.http.common.Utils.unchecked;
+
+public final class ResponseBodyHandlers {
+
+ private ResponseBodyHandlers() { }
+
+ /**
+ * A Path body handler.
+ *
+ * Note: Exists mainly too allow setting of the senders ACC post creation of
+ * the handler.
+ */
+ public static class PathBodyHandler implements UntrustedBodyHandler<Path> {
+ private final Path file;
+ private final OpenOption[]openOptions;
+ private volatile AccessControlContext acc;
+
+ public PathBodyHandler(Path file, OpenOption... openOptions) {
+ this.file = file;
+ this.openOptions = openOptions;
+ }
+
+ @Override
+ public void setAccessControlContext(AccessControlContext acc) {
+ this.acc = acc;
+ }
+
+ @Override
+ public BodySubscriber<Path> apply(int statusCode, HttpHeaders headers) {
+ PathSubscriber bs = (PathSubscriber) asFileImpl(file, openOptions);
+ bs.setAccessControlContext(acc);
+ return bs;
+ }
+ }
+
+ /** With push promise Map implementation */
+ public static class PushPromisesHandlerWithMap<T>
+ implements HttpResponse.PushPromiseHandler<T>
+ {
+ private final ConcurrentMap<HttpRequest,CompletableFuture<HttpResponse<T>>> pushPromisesMap;
+ private final Function<HttpRequest,BodyHandler<T>> pushPromiseHandler;
+
+ public PushPromisesHandlerWithMap(Function<HttpRequest,BodyHandler<T>> pushPromiseHandler,
+ ConcurrentMap<HttpRequest,CompletableFuture<HttpResponse<T>>> pushPromisesMap) {
+ this.pushPromiseHandler = pushPromiseHandler;
+ this.pushPromisesMap = pushPromisesMap;
+ }
+
+ @Override
+ public void applyPushPromise(
+ HttpRequest initiatingRequest, HttpRequest pushRequest,
+ Function<BodyHandler<T>,CompletableFuture<HttpResponse<T>>> acceptor)
+ {
+ URI initiatingURI = initiatingRequest.uri();
+ URI pushRequestURI = pushRequest.uri();
+ if (!initiatingURI.getHost().equalsIgnoreCase(pushRequestURI.getHost()))
+ return;
+
+ int initiatingPort = initiatingURI.getPort();
+ if (initiatingPort == -1 ) {
+ if ("https".equalsIgnoreCase(initiatingURI.getScheme()))
+ initiatingPort = 443;
+ else
+ initiatingPort = 80;
+ }
+ int pushPort = pushRequestURI.getPort();
+ if (pushPort == -1 ) {
+ if ("https".equalsIgnoreCase(pushRequestURI.getScheme()))
+ pushPort = 443;
+ else
+ pushPort = 80;
+ }
+ if (initiatingPort != pushPort)
+ return;
+
+ CompletableFuture<HttpResponse<T>> cf =
+ acceptor.apply(pushPromiseHandler.apply(pushRequest));
+ pushPromisesMap.put(pushRequest, cf);
+ }
+ }
+
+ // Similar to Path body handler, but for file download. Supports setting ACC.
+ public static class FileDownloadBodyHandler implements UntrustedBodyHandler<Path> {
+ private final Path directory;
+ private final OpenOption[]openOptions;
+ private volatile AccessControlContext acc;
+
+ public FileDownloadBodyHandler(Path directory, OpenOption... openOptions) {
+ this.directory = directory;
+ this.openOptions = openOptions;
+ }
+
+ @Override
+ public void setAccessControlContext(AccessControlContext acc) {
+ this.acc = acc;
+ }
+
+ @Override
+ public BodySubscriber<Path> apply(int statusCode, HttpHeaders headers) {
+ String dispoHeader = headers.firstValue("Content-Disposition")
+ .orElseThrow(() -> unchecked(new IOException("No Content-Disposition")));
+ if (!dispoHeader.startsWith("attachment;")) {
+ throw unchecked(new IOException("Unknown Content-Disposition type"));
+ }
+ int n = dispoHeader.indexOf("filename=");
+ if (n == -1) {
+ throw unchecked(new IOException("Bad Content-Disposition type"));
+ }
+ int lastsemi = dispoHeader.lastIndexOf(';');
+ String disposition;
+ if (lastsemi < n) {
+ disposition = dispoHeader.substring(n + 9);
+ } else {
+ disposition = dispoHeader.substring(n + 9, lastsemi);
+ }
+ Path file = Paths.get(directory.toString(), disposition);
+
+ PathSubscriber bs = (PathSubscriber)asFileImpl(file, openOptions);
+ bs.setAccessControlContext(acc);
+ return bs;
+ }
+ }
+
+ // no security check
+ private static BodySubscriber<Path> asFileImpl(Path file, OpenOption... openOptions) {
+ return new ResponseSubscribers.PathSubscriber(file, openOptions);
+ }
+}