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The source code/* * Copyright 1999-2004 The Apache Software Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.coyote.http11.filters; import java.io.IOException; import org.apache.coyote.Request; import org.apache.coyote.InputBuffer; import org.apache.coyote.http11.InputFilter; import org.apache.tomcat.util.buf.ByteChunk; /** * Input filter responsible for reading and buffering the request body, so that * it does not interfere with client SSL handshake messages. */ public class BufferedInputFilter implements InputFilter { // -------------------------------------------------------------- Constants private static final String ENCODING_NAME = "buffered"; private static final ByteChunk ENCODING = new ByteChunk(); // ----------------------------------------------------- Instance Variables private ByteChunk buffered = null; private ByteChunk tempRead = new ByteChunk(1024); private InputBuffer buffer; private boolean hasRead = false; // ----------------------------------------------------- Static Initializer static { ENCODING.setBytes(ENCODING_NAME.getBytes(), 0, ENCODING_NAME.length()); } // --------------------------------------------------------- Public Methods /** * Set the buffering limit. This should be reset every time the buffer is * used. */ public void setLimit(int limit) { if (buffered == null) { buffered = new ByteChunk(4048); buffered.setLimit(limit); } } // ---------------------------------------------------- InputBuffer Methods /** * Reads the request body and buffers it. */ public void setRequest(Request request) { // save off the Request body try { while (buffer.doRead(tempRead, request) >= 0) { buffered.append(tempRead); tempRead.recycle(); } } catch(IOException iex) { // Ignore } } /** * Fills the given ByteChunk with the buffered request body. */ public int doRead(ByteChunk chunk, Request request) throws IOException { if (hasRead || buffered.getLength() <= 0) { return -1; } else { chunk.setBytes(buffered.getBytes(), buffered.getStart(), buffered.getLength()); hasRead = true; } return chunk.getLength(); } public void setBuffer(InputBuffer buffer) { this.buffer = buffer; } public void recycle() { if (buffered.getBuffer().length > 65536) { buffered = null; } else { buffered.recycle(); } tempRead.recycle(); hasRead = false; buffer = null; } public ByteChunk getEncodingName() { return ENCODING; } public long end() throws IOException { return 0; } } |
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