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 * 52069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 53069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpublic abstract class AbstractSessionInputBuffer implements SessionInputBuffer { 54069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 55069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private InputStream instream; 56069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private byte[] buffer; 57069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int bufferpos; 58069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int bufferlen; 59069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 60069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private ByteArrayBuffer linebuffer = null; 61069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 62069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private String charset = HTTP.US_ASCII; 63069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private boolean ascii = true; 64069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int maxLineLen = -1; 65069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 66069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private HttpTransportMetricsImpl metrics; 67069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 68069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected void init(final InputStream instream, int buffersize, final HttpParams params) { 69069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (instream == null) { 70069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("Input stream may not be null"); 71069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 72069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (buffersize <= 0) { 73069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("Buffer size may not be negative or zero"); 74069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 75069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (params == null) { 76069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP parameters may not be null"); 77069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 78069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.instream = instream; 79069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.buffer = new byte[buffersize]; 80069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos = 0; 81069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferlen = 0; 82069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer = new ByteArrayBuffer(buffersize); 83069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.charset = HttpProtocolParams.getHttpElementCharset(params); 84069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.ascii = this.charset.equalsIgnoreCase(HTTP.US_ASCII) 85069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project || this.charset.equalsIgnoreCase(HTTP.ASCII); 86069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.maxLineLen = params.getIntParameter(CoreConnectionPNames.MAX_LINE_LENGTH, -1); 87069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.metrics = new HttpTransportMetricsImpl(); 88069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 89069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 90069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected int fillBuffer() throws IOException { 91069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // compact the buffer if necessary 92069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.bufferpos > 0) { 93069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int len = this.bufferlen - this.bufferpos; 94069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (len > 0) { 95069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project System.arraycopy(this.buffer, this.bufferpos, this.buffer, 0, len); 96069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 97069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos = 0; 98069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferlen = len; 99069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 100069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int l; 101069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int off = this.bufferlen; 102069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int len = this.buffer.length - off; 103069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project l = this.instream.read(this.buffer, off, len); 104069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (l == -1) { 105069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return -1; 106069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 107069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferlen = off + l; 108069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.metrics.incrementBytesTransferred(l); 109069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return l; 110069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 111069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 112069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 113069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected boolean hasBufferedData() { 114069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return this.bufferpos < this.bufferlen; 115069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 116069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 117069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public int read() throws IOException { 118069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int noRead = 0; 119069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project while (!hasBufferedData()) { 120069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project noRead = fillBuffer(); 121069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (noRead == -1) { 122069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return -1; 123069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 124069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 125069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return this.buffer[this.bufferpos++] & 0xff; 126069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 127069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 128069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public int read(final byte[] b, int off, int len) throws IOException { 129069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (b == null) { 130069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return 0; 131069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 132069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int noRead = 0; 133069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project while (!hasBufferedData()) { 134069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project noRead = fillBuffer(); 135069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (noRead == -1) { 136069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return -1; 137069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 138069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 139069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int chunk = this.bufferlen - this.bufferpos; 140069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (chunk > len) { 141069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project chunk = len; 142069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 143069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project System.arraycopy(this.buffer, this.bufferpos, b, off, chunk); 144069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos += chunk; 145069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return chunk; 146069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 147069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 148069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public int read(final byte[] b) throws IOException { 149069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (b == null) { 150069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return 0; 151069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 152069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return read(b, 0, b.length); 153069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 154069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 155069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int locateLF() { 156069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project for (int i = this.bufferpos; i < this.bufferlen; i++) { 157069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.buffer[i] == HTTP.LF) { 158069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return i; 159069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 160069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 161069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return -1; 162069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 163069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 164069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public int readLine(final CharArrayBuffer charbuffer) throws IOException { 165069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (charbuffer == null) { 166069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("Char array buffer may not be null"); 167069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 168069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer.clear(); 169069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int noRead = 0; 170069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project boolean retry = true; 171069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project while (retry) { 172069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // attempt to find end of line (LF) 173069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int i = locateLF(); 174069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (i != -1) { 175069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // end of line found. 176069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.linebuffer.isEmpty()) { 177069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // the entire line is preset in the read buffer 178069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return lineFromReadBuffer(charbuffer, i); 179069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 180069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project retry = false; 181069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int len = i + 1 - this.bufferpos; 182069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer.append(this.buffer, this.bufferpos, len); 183069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos = i + 1; 184069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 185069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // end of line not found 186069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (hasBufferedData()) { 187069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int len = this.bufferlen - this.bufferpos; 188069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer.append(this.buffer, this.bufferpos, len); 189069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos = this.bufferlen; 190069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 191069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project noRead = fillBuffer(); 192069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (noRead == -1) { 193069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project retry = false; 194069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 195069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 196069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.maxLineLen > 0 && this.linebuffer.length() >= this.maxLineLen) { 197069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IOException("Maximum line length limit exceeded"); 198069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 199069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 200069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (noRead == -1 && this.linebuffer.isEmpty()) { 201069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // indicate the end of stream 202069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return -1; 203069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 204069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return lineFromLineBuffer(charbuffer); 205069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 206069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 207069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int lineFromLineBuffer(final CharArrayBuffer charbuffer) 208069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws IOException { 209069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // discard LF if found 210069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int l = this.linebuffer.length(); 211069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (l > 0) { 212069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.linebuffer.byteAt(l - 1) == HTTP.LF) { 213069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project l--; 214069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer.setLength(l); 215069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 216069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // discard CR if found 217069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (l > 0) { 218069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.linebuffer.byteAt(l - 1) == HTTP.CR) { 219069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project l--; 220069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.linebuffer.setLength(l); 221069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 222069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 223069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 224069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project l = this.linebuffer.length(); 225069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.ascii) { 226069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charbuffer.append(this.linebuffer, 0, l); 227069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 228069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // This is VERY memory inefficient, BUT since non-ASCII charsets are 229069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // NOT meant to be used anyway, there's no point optimizing it 230069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project String s = new String(this.linebuffer.buffer(), 0, l, this.charset); 231069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charbuffer.append(s); 232069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 233069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return l; 234069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 235069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 236069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private int lineFromReadBuffer(final CharArrayBuffer charbuffer, int pos) 237069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws IOException { 238069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int off = this.bufferpos; 239069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int len; 240069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.bufferpos = pos + 1; 241633bc1a8d332166c7fca3e4f6fa8e5603f1618beDan Bornstein // BEGIN android-changed 242633bc1a8d332166c7fca3e4f6fa8e5603f1618beDan Bornstein // The first test below was fixed to not try to skip beyond the 243633bc1a8d332166c7fca3e4f6fa8e5603f1618beDan Bornstein // start of the live part of the buffer. 244633bc1a8d332166c7fca3e4f6fa8e5603f1618beDan Bornstein if (pos > off && this.buffer[pos - 1] == HTTP.CR) { 245069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // skip CR if found 246069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project pos--; 247069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 248633bc1a8d332166c7fca3e4f6fa8e5603f1618beDan Bornstein // END android-changed 249069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project len = pos - off; 250069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.ascii) { 251069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charbuffer.append(this.buffer, off, len); 252069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 253069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // This is VERY memory inefficient, BUT since non-ASCII charsets are 254069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // NOT meant to be used anyway, there's no point optimizing it 255069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project String s = new String(this.buffer, off, len, this.charset); 256069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project charbuffer.append(s); 257069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 258069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return len; 259069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 260069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 261069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public String readLine() throws IOException { 262069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project CharArrayBuffer charbuffer = new CharArrayBuffer(64); 263069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int l = readLine(charbuffer); 264069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (l != -1) { 265069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return charbuffer.toString(); 266069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 267069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return null; 268069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 269069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 270069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 271069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public HttpTransportMetrics getMetrics() { 272069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return this.metrics; 273069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 274069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 275069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project} 276