1069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/* 2069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/impl/io/AbstractSessionInputBuffer.java $ 3069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Revision: 576077 $ 4069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Date: 2007-09-16 04:50:22 -0700 (Sun, 16 Sep 2007) $ 5069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 6069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * ==================================================================== 7069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one 8069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * or more contributor license agreements. See the NOTICE file 9069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * distributed with this work for additional information 10069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * regarding copyright ownership. The ASF licenses this file 11069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * to you under the Apache License, Version 2.0 (the 12069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * "License"); you may not use this file except in compliance 13069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * with the License. You may obtain a copy of the License at 14069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 15069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 16069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 17069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Unless required by applicable law or agreed to in writing, 18069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * software distributed under the License is distributed on an 19069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 20069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * KIND, either express or implied. See the License for the 21069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * specific language governing permissions and limitations 22069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * under the License. 23069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * ==================================================================== 24069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 25069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * This software consists of voluntary contributions made by many 26069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * individuals on behalf of the Apache Software Foundation. For more 27069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * information on the Apache Software Foundation, please see 28069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <http://www.apache.org/>. 29069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 30069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 31069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 32069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpackage org.apache.http.impl.io; 33069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 34069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.IOException; 35069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.InputStream; 36069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 37069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.io.SessionInputBuffer; 38069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.io.HttpTransportMetrics; 39069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.params.CoreConnectionPNames; 40069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.params.HttpParams; 41069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.params.HttpProtocolParams; 42069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.protocol.HTTP; 43069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.util.ByteArrayBuffer; 44069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.util.CharArrayBuffer; 45069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 46069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/** 47069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Abstract base class for session input buffers that stream data 48069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * from a {@link InputStream}. 49069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 50069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 51069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 52d42abb2fd917184764daf22f5f299e848b8701d7Narayan Kamath * 53d42abb2fd917184764daf22f5f299e848b8701d7Narayan Kamath * @deprecated Please use {@link java.net.URL#openConnection} instead. 54d42abb2fd917184764daf22f5f299e848b8701d7Narayan Kamath * Please visit <a href="http://android-developers.blogspot.com/2011/09/androids-http-clients.html">this webpage</a> 55d42abb2fd917184764daf22f5f299e848b8701d7Narayan Kamath * for further details. 56069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 57d42abb2fd917184764daf22f5f299e848b8701d7Narayan Kamath@Deprecated 58069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpublic abstract class AbstractSessionInputBuffer implements SessionInputBuffer { 59069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 60069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private InputStream instream; 61069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private byte[] buffer; 62069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int bufferpos; 63069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int bufferlen; 64069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 65069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private ByteArrayBuffer linebuffer = null; 66069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 67069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private String charset = HTTP.US_ASCII; 68069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private boolean ascii = true; 69069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int maxLineLen = -1; 70069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 71069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private HttpTransportMetricsImpl metrics; 72069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 73069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected void init(final InputStream instream, int buffersize, final HttpParams params) { 74069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (instream == null) { 75069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("Input stream may not be null"); 76069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 77069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (buffersize <= 0) { 78069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("Buffer size may not be negative or zero"); 79069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 80069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (params == null) { 81069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP parameters may not be null"); 82069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 83069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.instream = instream; 84069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.buffer = new byte[buffersize]; 85069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos = 0; 86069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferlen = 0; 87069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer = new ByteArrayBuffer(buffersize); 88069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.charset = HttpProtocolParams.getHttpElementCharset(params); 89069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.ascii = this.charset.equalsIgnoreCase(HTTP.US_ASCII) 90069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project || this.charset.equalsIgnoreCase(HTTP.ASCII); 91069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.maxLineLen = params.getIntParameter(CoreConnectionPNames.MAX_LINE_LENGTH, -1); 92069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.metrics = new HttpTransportMetricsImpl(); 93069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 94069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 95069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected int fillBuffer() throws IOException { 96069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // compact the buffer if necessary 97069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.bufferpos > 0) { 98069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int len = this.bufferlen - this.bufferpos; 99069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (len > 0) { 100069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project System.arraycopy(this.buffer, this.bufferpos, this.buffer, 0, len); 101069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 102069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos = 0; 103069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferlen = len; 104069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 105069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int l; 106069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int off = this.bufferlen; 107069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int len = this.buffer.length - off; 108069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project l = this.instream.read(this.buffer, off, len); 109069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (l == -1) { 110069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return -1; 111069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 112069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferlen = off + l; 113069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.metrics.incrementBytesTransferred(l); 114069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return l; 115069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 116069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 117069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 118069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected boolean hasBufferedData() { 119069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return this.bufferpos < this.bufferlen; 120069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 121069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 122069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public int read() throws IOException { 123069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int noRead = 0; 124069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project while (!hasBufferedData()) { 125069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project noRead = fillBuffer(); 126069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (noRead == -1) { 127069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return -1; 128069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 129069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 130069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return this.buffer[this.bufferpos++] & 0xff; 131069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 132069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 133069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public int read(final byte[] b, int off, int len) throws IOException { 134069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (b == null) { 135069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return 0; 136069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 137069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int noRead = 0; 138069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project while (!hasBufferedData()) { 139069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project noRead = fillBuffer(); 140069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (noRead == -1) { 141069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return -1; 142069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 143069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 144069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int chunk = this.bufferlen - this.bufferpos; 145069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (chunk > len) { 146069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project chunk = len; 147069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 148069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project System.arraycopy(this.buffer, this.bufferpos, b, off, chunk); 149069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos += chunk; 150069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return chunk; 151069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 152069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 153069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public int read(final byte[] b) throws IOException { 154069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (b == null) { 155069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return 0; 156069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 157069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return read(b, 0, b.length); 158069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 159069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 160069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int locateLF() { 161069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project for (int i = this.bufferpos; i < this.bufferlen; i++) { 162069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.buffer[i] == HTTP.LF) { 163069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return i; 164069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 165069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 166069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return -1; 167069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 168069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 169069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public int readLine(final CharArrayBuffer charbuffer) throws IOException { 170069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (charbuffer == null) { 171069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("Char array buffer may not be null"); 172069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 173069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer.clear(); 174069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int noRead = 0; 175069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project boolean retry = true; 176069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project while (retry) { 177069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // attempt to find end of line (LF) 178069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int i = locateLF(); 179069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (i != -1) { 180069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // end of line found. 181069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.linebuffer.isEmpty()) { 182069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // the entire line is preset in the read buffer 183069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return lineFromReadBuffer(charbuffer, i); 184069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 185069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project retry = false; 186069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int len = i + 1 - this.bufferpos; 187069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer.append(this.buffer, this.bufferpos, len); 188069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos = i + 1; 189069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 190069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // end of line not found 191069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (hasBufferedData()) { 192069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int len = this.bufferlen - this.bufferpos; 193069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer.append(this.buffer, this.bufferpos, len); 194069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos = this.bufferlen; 195069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 196069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project noRead = fillBuffer(); 197069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (noRead == -1) { 198069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project retry = false; 199069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 200069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 201069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.maxLineLen > 0 && this.linebuffer.length() >= this.maxLineLen) { 202069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IOException("Maximum line length limit exceeded"); 203069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 204069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 205069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (noRead == -1 && this.linebuffer.isEmpty()) { 206069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // indicate the end of stream 207069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return -1; 208069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 209069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return lineFromLineBuffer(charbuffer); 210069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 211069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 212069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int lineFromLineBuffer(final CharArrayBuffer charbuffer) 213069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws IOException { 214069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // discard LF if found 215069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int l = this.linebuffer.length(); 216069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (l > 0) { 217069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.linebuffer.byteAt(l - 1) == HTTP.LF) { 218069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project l--; 219069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer.setLength(l); 220069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 221069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // discard CR if found 222069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (l > 0) { 223069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.linebuffer.byteAt(l - 1) == HTTP.CR) { 224069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project l--; 225069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer.setLength(l); 226069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 227069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 228069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 229069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project l = this.linebuffer.length(); 230069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.ascii) { 231069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charbuffer.append(this.linebuffer, 0, l); 232069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 233069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // This is VERY memory inefficient, BUT since non-ASCII charsets are 234069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // NOT meant to be used anyway, there's no point optimizing it 235069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project String s = new String(this.linebuffer.buffer(), 0, l, this.charset); 236069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charbuffer.append(s); 237069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 238069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return l; 239069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 240069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 241069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int lineFromReadBuffer(final CharArrayBuffer charbuffer, int pos) 242069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws IOException { 243069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int off = this.bufferpos; 244069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int len; 245069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos = pos + 1; 246633bc1a8d332166c7fca3e4f6fa8e5603f1618beDan Bornstein // BEGIN android-changed 247633bc1a8d332166c7fca3e4f6fa8e5603f1618beDan Bornstein // The first test below was fixed to not try to skip beyond the 248633bc1a8d332166c7fca3e4f6fa8e5603f1618beDan Bornstein // start of the live part of the buffer. 249633bc1a8d332166c7fca3e4f6fa8e5603f1618beDan Bornstein if (pos > off && this.buffer[pos - 1] == HTTP.CR) { 250069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // skip CR if found 251069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project pos--; 252069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 253633bc1a8d332166c7fca3e4f6fa8e5603f1618beDan Bornstein // END android-changed 254069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project len = pos - off; 255069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.ascii) { 256069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charbuffer.append(this.buffer, off, len); 257069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 258069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // This is VERY memory inefficient, BUT since non-ASCII charsets are 259069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // NOT meant to be used anyway, there's no point optimizing it 260069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project String s = new String(this.buffer, off, len, this.charset); 261069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charbuffer.append(s); 262069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 263069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return len; 264069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 265069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 266069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public String readLine() throws IOException { 267069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project CharArrayBuffer charbuffer = new CharArrayBuffer(64); 268069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int l = readLine(charbuffer); 269069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (l != -1) { 270069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return charbuffer.toString(); 271069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 272069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return null; 273069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 274069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 275069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 276069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public HttpTransportMetrics getMetrics() { 277069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return this.metrics; 278069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 279069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 280069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project} 281