156 lines
4.4 KiB
Java
156 lines
4.4 KiB
Java
/*
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* This file is part of BlueMap, licensed under the MIT License (MIT).
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*
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* Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
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* Copyright (c) contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package io.gitlab.jfronny.dynres.web.bluemapcore;
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import java.io.ByteArrayInputStream;
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import java.io.Closeable;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.OutputStreamWriter;
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import java.nio.charset.StandardCharsets;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Set;
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import org.apache.commons.lang3.StringUtils;
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public class HttpResponse implements Closeable {
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private String version;
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private HttpStatusCode statusCode;
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private Map<String, Set<String>> header;
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private InputStream data;
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public HttpResponse(HttpStatusCode statusCode) {
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this.version = "HTTP/1.1";
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this.statusCode = statusCode;
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this.header = new HashMap<>();
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addHeader("Connection", "keep-alive");
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}
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public void addHeader(String key, String value){
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Set<String> valueSet = header.get(key);
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if (valueSet == null){
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valueSet = new HashSet<>();
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header.put(key, valueSet);
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}
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valueSet.add(value);
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}
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public void removeHeader(String key, String value){
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Set<String> valueSet = header.get(key);
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if (valueSet == null){
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valueSet = new HashSet<>();
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header.put(key, valueSet);
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}
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valueSet.remove(value);
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}
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public void setData(InputStream dataStream){
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this.data = dataStream;
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}
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public void setData(String data){
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setData(new ByteArrayInputStream(data.getBytes(StandardCharsets.UTF_8)));
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}
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/**
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* Writes this Response to an Output-Stream.<br>
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* <br>
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* This method closes the data-Stream of this response so it can't be used again!
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*/
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public void write(OutputStream out) throws IOException {
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OutputStreamWriter writer = new OutputStreamWriter(out, StandardCharsets.UTF_8);
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if (data != null){
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addHeader("Transfer-Encoding", "chunked");
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} else {
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addHeader("Content-Length", "0");
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}
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writeLine(writer, version + " " + statusCode.getCode() + " " + statusCode.getMessage());
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for (Entry<String, Set<String>> e : header.entrySet()){
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if (e.getValue().isEmpty()) continue;
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writeLine(writer, e.getKey() + ": " + StringUtils.join(e.getValue(), ", "));
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}
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writeLine(writer, "");
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writer.flush();
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if(data != null){
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chunkedPipe(data, out);
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out.flush();
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data.close();
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}
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}
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@Override
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public void close() throws IOException {
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data.close();
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}
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private void writeLine(OutputStreamWriter writer, String line) throws IOException {
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writer.write(line + "\r\n");
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}
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private void chunkedPipe(InputStream input, OutputStream output) throws IOException {
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byte[] buffer = new byte[1024];
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int byteCount;
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while ((byteCount = input.read(buffer)) != -1) {
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output.write((Integer.toHexString(byteCount) + "\r\n").getBytes());
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output.write(buffer, 0, byteCount);
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output.write("\r\n".getBytes());
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}
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output.write("0\r\n\r\n".getBytes());
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}
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public HttpStatusCode getStatusCode(){
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return statusCode;
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}
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public String getVersion(){
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return version;
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}
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public Map<String, Set<String>> getHeader() {
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return header;
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}
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public Set<String> getHeader(String key){
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Set<String> headerValues = header.get(key);
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if (headerValues == null) return Collections.emptySet();
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return headerValues;
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}
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}
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