1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.volley.toolbox; 17 18 import com.android.volley.AuthFailureError; 19 import com.android.volley.Header; 20 import com.android.volley.Request; 21 22 import org.apache.http.ProtocolVersion; 23 import org.apache.http.StatusLine; 24 import org.apache.http.entity.BasicHttpEntity; 25 import org.apache.http.message.BasicHeader; 26 import org.apache.http.message.BasicHttpResponse; 27 import org.apache.http.message.BasicStatusLine; 28 29 import java.io.IOException; 30 import java.io.InputStream; 31 import java.net.SocketTimeoutException; 32 import java.util.ArrayList; 33 import java.util.List; 34 import java.util.Map; 35 36 /** An HTTP stack abstraction. */ 37 @SuppressWarnings("deprecation") // for HttpStack 38 public abstract class BaseHttpStack implements HttpStack { 39 40 /** 41 * Performs an HTTP request with the given parameters. 42 * 43 * <p>A GET request is sent if request.getPostBody() == null. A POST request is sent otherwise, 44 * and the Content-Type header is set to request.getPostBodyContentType(). 45 * 46 * @param request the request to perform 47 * @param additionalHeaders additional headers to be sent together with 48 * {@link Request#getHeaders()} 49 * @return the {@link HttpResponse} 50 * @throws SocketTimeoutException if the request times out 51 * @throws IOException if another I/O error occurs during the request 52 * @throws AuthFailureError if an authentication failure occurs during the request 53 */ 54 public abstract HttpResponse executeRequest( 55 Request<?> request, Map<String, String> additionalHeaders) 56 throws IOException, AuthFailureError; 57 58 /** 59 * @deprecated use {@link #executeRequest} instead to avoid a dependency on the deprecated 60 * Apache HTTP library. Nothing in Volley's own source calls this method. However, since 61 * {@link BasicNetwork#mHttpStack} is exposed to subclasses, we provide this implementation in 62 * case legacy client apps are dependent on that field. This method may be removed in a future 63 * release of Volley. 64 */ 65 @Deprecated 66 @Override 67 public final org.apache.http.HttpResponse performRequest( 68 Request<?> request, Map<String, String> additionalHeaders) 69 throws IOException, AuthFailureError { 70 HttpResponse response = executeRequest(request, additionalHeaders); 71 72 ProtocolVersion protocolVersion = new ProtocolVersion("HTTP", 1, 1); 73 StatusLine statusLine = new BasicStatusLine( 74 protocolVersion, response.getStatusCode(), "" /* reasonPhrase */); 75 BasicHttpResponse apacheResponse = new BasicHttpResponse(statusLine); 76 77 List<org.apache.http.Header> headers = new ArrayList<>(); 78 for (Header header : response.getHeaders()) { 79 headers.add(new BasicHeader(header.getName(), header.getValue())); 80 } 81 apacheResponse.setHeaders(headers.toArray(new org.apache.http.Header[headers.size()])); 82 83 InputStream responseStream = response.getContent(); 84 if (responseStream != null) { 85 BasicHttpEntity entity = new BasicHttpEntity(); 86 entity.setContent(responseStream); 87 entity.setContentLength(response.getContentLength()); 88 apacheResponse.setEntity(entity); 89 } 90 91 return apacheResponse; 92 } 93 } 94
