2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
22 package org.openecomp.sdnc.filters;
24 import java.io.BufferedReader;
25 import java.io.ByteArrayInputStream;
26 import java.io.ByteArrayOutputStream;
27 import java.io.IOException;
28 import java.io.InputStream;
29 import java.io.InputStreamReader;
30 import java.io.PrintWriter;
31 import java.util.Enumeration;
32 import java.util.zip.GZIPInputStream;
34 import javax.servlet.Filter;
35 import javax.servlet.FilterChain;
36 import javax.servlet.FilterConfig;
37 import javax.servlet.ServletException;
38 import javax.servlet.ServletInputStream;
39 import javax.servlet.ServletOutputStream;
40 import javax.servlet.ServletRequest;
41 import javax.servlet.ServletResponse;
42 import javax.servlet.http.HttpServletRequest;
43 import javax.servlet.http.HttpServletRequestWrapper;
44 import javax.servlet.http.HttpServletResponse;
45 import javax.servlet.http.HttpServletResponseWrapper;
47 public class RequestResponseLoggingFilter implements Filter {
49 private static org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger("org.openecomp.sdnc.filters.request.response");
51 private static class ByteArrayServletStream extends ServletOutputStream {
53 ByteArrayOutputStream baos;
55 ByteArrayServletStream(ByteArrayOutputStream baos) {
60 public void write(int param) throws IOException {
65 private static class ByteArrayPrintWriter {
67 private ByteArrayOutputStream baos = new ByteArrayOutputStream();
69 private PrintWriter pw = new PrintWriter(baos);
71 private ServletOutputStream sos = new ByteArrayServletStream(baos);
73 public PrintWriter getWriter() {
77 public ServletOutputStream getStream() {
81 byte[] toByteArray() {
82 return baos.toByteArray();
86 private class BufferedServletInputStream extends ServletInputStream {
88 ByteArrayInputStream bais;
90 public BufferedServletInputStream(ByteArrayInputStream bais) {
95 public int available() {
96 return bais.available();
105 public int read(byte[] buf, int off, int len) {
106 return bais.read(buf, off, len);
111 private class BufferedRequestWrapper extends HttpServletRequestWrapper {
113 ByteArrayInputStream bais;
115 ByteArrayOutputStream baos;
117 BufferedServletInputStream bsis;
121 public BufferedRequestWrapper(HttpServletRequest req) throws IOException {
124 InputStream is = req.getInputStream();
125 baos = new ByteArrayOutputStream();
126 byte buf[] = new byte[1024];
128 while ((letti = is.read(buf)) > 0) {
129 baos.write(buf, 0, letti);
131 buffer = baos.toByteArray();
136 public ServletInputStream getInputStream() {
138 bais = new ByteArrayInputStream(buffer);
139 bsis = new BufferedServletInputStream(bais);
140 } catch (Exception ex) {
141 ex.printStackTrace();
147 public byte[] getBuffer() {
154 public void init(FilterConfig filterConfig) throws ServletException {
158 public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
159 throws IOException, ServletException {
161 final HttpServletRequest httpRequest = (HttpServletRequest) servletRequest;
162 BufferedRequestWrapper bufferedRequest = new BufferedRequestWrapper(httpRequest);
164 StringBuilder requestHeaders = new StringBuilder("REQUEST|");
165 requestHeaders.append(httpRequest.getMethod());
166 requestHeaders.append(":");
167 requestHeaders.append(httpRequest.getRequestURL().toString());
168 requestHeaders.append("|");
170 for (Enumeration<String> e = httpRequest.getHeaderNames(); e.hasMoreElements();) {
171 header = e.nextElement();
172 requestHeaders.append(header);
173 requestHeaders.append(":");
174 requestHeaders.append(httpRequest.getHeader(header));
175 requestHeaders.append(";");
178 log.info(requestHeaders.toString());
180 log.info("REQUEST BODY|" + new String(bufferedRequest.getBuffer()));
182 final HttpServletResponse response = (HttpServletResponse) servletResponse;
184 final ByteArrayPrintWriter pw = new ByteArrayPrintWriter();
185 HttpServletResponse wrappedResp = new HttpServletResponseWrapper(response) {
187 public PrintWriter getWriter() {
188 return pw.getWriter();
192 public ServletOutputStream getOutputStream() {
193 return pw.getStream();
200 filterChain.doFilter(bufferedRequest, wrappedResp);
202 }catch (Exception e){
203 log.error("Chain Exception",e);
206 byte[] bytes = pw.toByteArray();
207 response.getOutputStream().write(bytes);
208 response.getOutputStream().flush();
210 StringBuilder responseHeaders = new StringBuilder("RESPONSE HEADERS|");
212 for (String headerName : response.getHeaderNames()) {
213 responseHeaders.append(headerName);
214 responseHeaders.append(":");
215 responseHeaders.append(response.getHeader(headerName));
216 responseHeaders.append(";");
219 log.info(responseHeaders.toString());
221 if ("gzip".equals(response.getHeader("Content-Encoding"))) {
223 log.info("UNGZIPED RESPONSE BODY|" + decompressGZIPByteArray(bytes));
227 log.info("RESPONSE BODY|" + new String(bytes));
233 public void destroy() {
236 private String decompressGZIPByteArray(byte[] bytes) {
238 BufferedReader in = null;
239 InputStreamReader inR = null;
240 ByteArrayInputStream byteS = null;
241 GZIPInputStream gzS = null;
242 StringBuilder str = new StringBuilder();
244 byteS = new ByteArrayInputStream(bytes);
245 gzS = new GZIPInputStream(byteS);
246 inR = new InputStreamReader(gzS);
247 in = new BufferedReader(inR);
253 while ((content = in.readLine()) != null) {
258 } catch (Exception e) {
259 log.error("Failed get read GZIPInputStream", e);
265 } catch (IOException e1) {
266 log.error("Failed to close ByteStream", e1);
271 } catch (IOException e2) {
272 log.error("Failed to close GZStream", e2);
277 } catch (IOException e3) {
278 log.error("Failed to close InputReader", e3);
283 } catch (IOException e) {
284 log.error("Failed to close BufferedReader", e);
287 return str.toString();