Initial commit for OpenECOMP SDN-C N-C core

Change-Id: I30c52795ab821c4fdd18b55d202f10a76a01acfa
Signed-off-by: Dan Timoney <dtimoney@att.com>

1 files changed, 279 insertions, 0 deletions

diff --git a/filters/provider/src/main/java/org/openecomp/sdnc/filters/RequestResponseLoggingFilter.java b/filters/provider/src/main/java/org/openecomp/sdnc/filters/RequestResponseLoggingFilter.java
new file mode 100644
index 0000000..5fe22b2
--- /dev/null
+++ b/filters/provider/src/main/java/org/openecomp/sdnc/filters/RequestResponseLoggingFilter.java
@@ -0,0 +1,279 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : SDN-C
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights
+ *                         reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.filters;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.util.Enumeration;
+import java.util.zip.GZIPInputStream;
+import java.util.zip.Inflater;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletInputStream;
+import javax.servlet.ServletOutputStream;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletRequestWrapper;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpServletResponseWrapper;
+
+public class RequestResponseLoggingFilter implements Filter {
+
+	private static org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger("org.openecomp.sdnc.filters.request.response");
+
+	private static class ByteArrayServletStream extends ServletOutputStream {
+
+		ByteArrayOutputStream baos;
+
+		ByteArrayServletStream(ByteArrayOutputStream baos) {
+			this.baos = baos;
+		}
+
+		public void write(int param) throws IOException {
+			baos.write(param);
+		}
+	}
+
+	private static class ByteArrayPrintWriter {
+
+		private ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+		private PrintWriter pw = new PrintWriter(baos);
+
+		private ServletOutputStream sos = new ByteArrayServletStream(baos);
+
+		public PrintWriter getWriter() {
+			return pw;
+		}
+
+		public ServletOutputStream getStream() {
+			return sos;
+		}
+
+		byte[] toByteArray() {
+			return baos.toByteArray();
+		}
+	}
+
+	private class BufferedServletInputStream extends ServletInputStream {
+
+		ByteArrayInputStream bais;
+
+		public BufferedServletInputStream(ByteArrayInputStream bais) {
+			this.bais = bais;
+		}
+
+		public int available() {
+			return bais.available();
+		}
+
+		public int read() {
+			return bais.read();
+		}
+
+		public int read(byte[] buf, int off, int len) {
+			return bais.read(buf, off, len);
+		}
+
+	}
+
+	private class BufferedRequestWrapper extends HttpServletRequestWrapper {
+
+		ByteArrayInputStream bais;
+
+		ByteArrayOutputStream baos;
+
+		BufferedServletInputStream bsis;
+
+		byte[] buffer;
+
+		public BufferedRequestWrapper(HttpServletRequest req) throws IOException {
+			super(req);
+
+			InputStream is = req.getInputStream();
+			baos = new ByteArrayOutputStream();
+			byte buf[] = new byte[1024];
+			int letti;
+			while ((letti = is.read(buf)) > 0) {
+				baos.write(buf, 0, letti);
+			}
+			buffer = baos.toByteArray();
+
+		}
+
+		public ServletInputStream getInputStream() {
+			try {
+				bais = new ByteArrayInputStream(buffer);
+				bsis = new BufferedServletInputStream(bais);
+			} catch (Exception ex) {
+				ex.printStackTrace();
+			}
+
+			return bsis;
+		}
+
+		public byte[] getBuffer() {
+			return buffer;
+		}
+
+	}
+
+	public void init(FilterConfig filterConfig) throws ServletException {
+	}
+
+	public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
+			throws IOException, ServletException {
+
+		final HttpServletRequest httpRequest = (HttpServletRequest) servletRequest;
+		BufferedRequestWrapper bufferedRequest = new BufferedRequestWrapper(httpRequest);
+
+		StringBuilder requestHeaders = new StringBuilder("REQUEST|");
+		requestHeaders.append(httpRequest.getMethod());
+		requestHeaders.append(":");
+		requestHeaders.append(httpRequest.getRequestURL().toString());
+		requestHeaders.append("|");
+		String header;
+		for (Enumeration<String> e = httpRequest.getHeaderNames(); e.hasMoreElements();) {
+			header = e.nextElement();
+			requestHeaders.append(header);
+			requestHeaders.append(":");
+			requestHeaders.append(httpRequest.getHeader(header));
+			requestHeaders.append(";");
+
+		}
+		log.info(requestHeaders.toString());
+
+		log.info("REQUEST BODY|" + new String(bufferedRequest.getBuffer()));
+
+		final HttpServletResponse response = (HttpServletResponse) servletResponse;
+
+		final ByteArrayPrintWriter pw = new ByteArrayPrintWriter();
+		HttpServletResponse wrappedResp = new HttpServletResponseWrapper(response) {
+			public PrintWriter getWriter() {
+				return pw.getWriter();
+			}
+
+			public ServletOutputStream getOutputStream() {
+				return pw.getStream();
+			}
+
+		};
+
+		try {
+			
+		filterChain.doFilter(bufferedRequest, wrappedResp);
+		
+		}catch (Exception e){
+			log.error("Chain Exception",e);
+			throw e;
+		} finally {
+		byte[] bytes = pw.toByteArray();
+		response.getOutputStream().write(bytes);
+
+		StringBuilder responseHeaders = new StringBuilder("RESPONSE HEADERS|");
+
+		for (String headerName : response.getHeaderNames()) {
+			responseHeaders.append(headerName);
+			responseHeaders.append(":");
+			responseHeaders.append(response.getHeader(headerName));
+			responseHeaders.append(";");
+
+		}
+		log.info(responseHeaders.toString());
+
+		if ("gzip".equals(response.getHeader("Content-Encoding"))) {
+
+			log.info("UNGZIPED RESPONSE BODY|" + decompressGZIPByteArray(bytes));
+
+		} else {
+
+			log.info("RESPONSE BODY|" + new String(bytes));
+		}
+		}
+	}
+
+	public void destroy() {
+	}
+
+	private String decompressGZIPByteArray(byte[] bytes) {
+
+		BufferedReader in = null;
+		InputStreamReader inR = null;
+		ByteArrayInputStream byteS = null;
+		GZIPInputStream gzS = null;
+		StringBuilder str = new StringBuilder();
+		try {
+			byteS = new ByteArrayInputStream(bytes);
+			gzS = new GZIPInputStream(byteS);
+			inR = new InputStreamReader(gzS);
+			in = new BufferedReader(inR);
+
+			if (in != null) {
+
+				String content;
+
+				while ((content = in.readLine()) != null) {
+					str.append(content);
+				}
+			}
+
+		} catch (Exception e) {
+			log.error("Failed get read GZIPInputStream", e);
+		} finally {
+
+			if (byteS != null)
+				try {
+					byteS.close();
+				} catch (IOException e1) {
+					log.error("Failed to close ByteStream", e1);
+				}
+			if (gzS != null)
+				try {
+					gzS.close();
+				} catch (IOException e2) {
+					log.error("Failed to close GZStream", e2);
+				}
+			if (inR != null)
+				try {
+					inR.close();
+				} catch (IOException e3) {
+					log.error("Failed to close InputReader", e3);
+				}
+			if (in != null)
+				try {
+					in.close();
+				} catch (IOException e) {
+					log.error("Failed to close BufferedReader", e);
+				}
+		}
+		return str.toString();
+	}
+}