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      1 /*
      2  * Copyright (C) 2010 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 
     17 package tests.http;
     18 
     19 import java.io.ByteArrayOutputStream;
     20 import java.io.IOException;
     21 import java.io.UnsupportedEncodingException;
     22 import java.util.ArrayList;
     23 import java.util.List;
     24 import static tests.http.MockWebServer.ASCII;
     25 
     26 /**
     27  * A scripted response to be replayed by the mock web server.
     28  */
     29 public class MockResponse implements Cloneable {
     30     private static final String RFC_1123_DATE_FORMAT = "EEE, dd MMM yyyy HH:mm:ss zzz";
     31     private static final String EMPTY_BODY_HEADER = "Content-Length: 0";
     32     private static final String CHUNKED_BODY_HEADER = "Transfer-encoding: chunked";
     33     private static final byte[] EMPTY_BODY = new byte[0];
     34 
     35     private String status = "HTTP/1.1 200 OK";
     36     private List<String> headers = new ArrayList<String>();
     37     private byte[] body = EMPTY_BODY;
     38     private SocketPolicy socketPolicy = SocketPolicy.KEEP_OPEN;
     39 
     40     public MockResponse() {
     41         headers.add(EMPTY_BODY_HEADER);
     42     }
     43 
     44     @Override public MockResponse clone() {
     45         try {
     46             MockResponse result = (MockResponse) super.clone();
     47             result.headers = new ArrayList<String>(result.headers);
     48             return result;
     49         } catch (CloneNotSupportedException e) {
     50             throw new AssertionError();
     51         }
     52     }
     53 
     54     /**
     55      * Returns the HTTP response line, such as "HTTP/1.1 200 OK".
     56      */
     57     public String getStatus() {
     58         return status;
     59     }
     60 
     61     public MockResponse setResponseCode(int code) {
     62         this.status = "HTTP/1.1 " + code + " OK";
     63         return this;
     64     }
     65 
     66     public MockResponse setStatus(String status) {
     67         this.status = status;
     68         return this;
     69     }
     70 
     71     /**
     72      * Returns the HTTP headers, such as "Content-Length: 0".
     73      */
     74     public List<String> getHeaders() {
     75         return headers;
     76     }
     77 
     78     public MockResponse clearHeaders() {
     79         headers.clear();
     80         return this;
     81     }
     82 
     83     public MockResponse addHeader(String header) {
     84         headers.add(header);
     85         return this;
     86     }
     87 
     88     /**
     89      * Returns an input stream containing the raw HTTP payload.
     90      */
     91     public byte[] getBody() {
     92         return body;
     93     }
     94 
     95     public MockResponse setBody(byte[] body) {
     96         if (this.body == EMPTY_BODY) {
     97             headers.remove(EMPTY_BODY_HEADER);
     98         }
     99         this.headers.add("Content-Length: " + body.length);
    100         this.body = body;
    101         return this;
    102     }
    103 
    104     public MockResponse setBody(String body) {
    105         try {
    106             return setBody(body.getBytes(ASCII));
    107         } catch (UnsupportedEncodingException e) {
    108             throw new AssertionError();
    109         }
    110     }
    111 
    112     public MockResponse setChunkedBody(byte[] body, int maxChunkSize) throws IOException {
    113         headers.remove(EMPTY_BODY_HEADER);
    114         headers.add(CHUNKED_BODY_HEADER);
    115 
    116         ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
    117         int pos = 0;
    118         while (pos < body.length) {
    119             int chunkSize = Math.min(body.length - pos, maxChunkSize);
    120             bytesOut.write(Integer.toHexString(chunkSize).getBytes(ASCII));
    121             bytesOut.write("\r\n".getBytes(ASCII));
    122             bytesOut.write(body, pos, chunkSize);
    123             bytesOut.write("\r\n".getBytes(ASCII));
    124             pos += chunkSize;
    125         }
    126         bytesOut.write("0\r\n\r\n".getBytes(ASCII)); // last chunk + empty trailer + crlf
    127         this.body = bytesOut.toByteArray();
    128         return this;
    129     }
    130 
    131     public MockResponse setChunkedBody(String body, int maxChunkSize) throws IOException {
    132         return setChunkedBody(body.getBytes(ASCII), maxChunkSize);
    133     }
    134 
    135     public SocketPolicy getSocketPolicy() {
    136         return socketPolicy;
    137     }
    138 
    139     public MockResponse setSocketPolicy(SocketPolicy socketPolicy) {
    140         this.socketPolicy = socketPolicy;
    141         return this;
    142     }
    143 
    144     @Override public String toString() {
    145         return status;
    146     }
    147 }
    148