| /* |
| * Copyright 2016, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package io.grpc.internal; |
| |
| import static com.google.common.base.MoreObjects.firstNonNull; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import io.grpc.Attributes; |
| import io.grpc.CallCredentials; |
| import io.grpc.CallOptions; |
| import io.grpc.Metadata; |
| import io.grpc.MethodDescriptor; |
| import io.grpc.SecurityLevel; |
| |
| import java.net.SocketAddress; |
| import java.util.concurrent.Executor; |
| import javax.annotation.Nullable; |
| |
| final class CallCredentialsApplyingTransportFactory implements ClientTransportFactory { |
| private final ClientTransportFactory delegate; |
| private final Executor appExecutor; |
| |
| CallCredentialsApplyingTransportFactory( |
| ClientTransportFactory delegate, Executor appExecutor) { |
| this.delegate = checkNotNull(delegate, "delegate"); |
| this.appExecutor = checkNotNull(appExecutor, "appExecutor"); |
| } |
| |
| @Override |
| public ConnectionClientTransport newClientTransport( |
| SocketAddress serverAddress, String authority, @Nullable String userAgent) { |
| return new CallCredentialsApplyingTransport( |
| delegate.newClientTransport(serverAddress, authority, userAgent), authority); |
| } |
| |
| @Override |
| public void close() { |
| delegate.close(); |
| } |
| |
| private class CallCredentialsApplyingTransport extends ForwardingConnectionClientTransport { |
| private final ConnectionClientTransport delegate; |
| private final String authority; |
| |
| CallCredentialsApplyingTransport(ConnectionClientTransport delegate, String authority) { |
| this.delegate = checkNotNull(delegate, "delegate"); |
| this.authority = checkNotNull(authority, "authority"); |
| } |
| |
| @Override |
| protected ConnectionClientTransport delegate() { |
| return delegate; |
| } |
| |
| @Override |
| public ClientStream newStream( |
| MethodDescriptor<?, ?> method, Metadata headers, CallOptions callOptions, |
| StatsTraceContext statsTraceCtx) { |
| CallCredentials creds = callOptions.getCredentials(); |
| if (creds != null) { |
| MetadataApplierImpl applier = new MetadataApplierImpl( |
| delegate, method, headers, callOptions, statsTraceCtx); |
| Attributes.Builder effectiveAttrsBuilder = Attributes.newBuilder() |
| .set(CallCredentials.ATTR_AUTHORITY, authority) |
| .set(CallCredentials.ATTR_SECURITY_LEVEL, SecurityLevel.NONE) |
| .setAll(delegate.getAttributes()); |
| if (callOptions.getAuthority() != null) { |
| effectiveAttrsBuilder.set(CallCredentials.ATTR_AUTHORITY, callOptions.getAuthority()); |
| } |
| creds.applyRequestMetadata(method, effectiveAttrsBuilder.build(), |
| firstNonNull(callOptions.getExecutor(), appExecutor), applier); |
| return applier.returnStream(); |
| } else { |
| return delegate.newStream(method, headers, callOptions, statsTraceCtx); |
| } |
| } |
| } |
| } |