DirectControlServlet.java
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package com.brainfood.ofbiz;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.StringReader;
import java.io.InputStreamReader;
import java.io.InputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.OutputStream;
import java.util.Collections;
import java.util.Collection;
import java.util.Map;
import java.net.URL;
import java.net.MalformedURLException;
import java.security.DigestOutputStream;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.Set;
import java.util.Date;
import java.util.List;
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Enumeration;
import java.util.Locale;
import java.util.TimeZone;
import java.util.Iterator;
import java.sql.Timestamp;
import javax.script.ScriptContext;
import javax.servlet.AsyncContext;
import javax.servlet.AsyncEvent;
import javax.servlet.AsyncListener;
import javax.servlet.ReadListener;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.ServletOutputStream;
import javax.servlet.WriteListener;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.http.Cookie;
import javax.servlet.http.Part;
import org.ofbiz.base.lang.JSON;
import org.ofbiz.base.util.Base64;
import org.ofbiz.base.util.Debug;
import org.ofbiz.base.util.GroovyUtil;
import org.ofbiz.base.util.ScriptHelper;
import org.ofbiz.base.util.ScriptUtil;
import org.ofbiz.base.util.StringUtil;
import org.ofbiz.base.util.UtilGenerics;
import org.ofbiz.base.util.UtilHttp;
import org.ofbiz.base.util.UtilMisc;
import org.ofbiz.base.util.UtilProperties;
import org.ofbiz.base.util.UtilIO;
import org.ofbiz.base.util.UtilValidate;
import org.ofbiz.entity.Delegator;
import org.ofbiz.entity.DelegatorFactory;
import org.ofbiz.entity.GenericValue;
import org.ofbiz.entity.util.EntityUtil;
import org.ofbiz.entity.condition.EntityOperator;
import org.ofbiz.entity.condition.EntityCondition;
import org.ofbiz.service.DispatchContext;
import org.ofbiz.service.GenericServiceException;
import org.ofbiz.service.LocalDispatcher;
import org.ofbiz.service.ModelService;
import org.ofbiz.service.ServiceAuthException;
import org.ofbiz.service.ServiceContainer;
import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVRecord;
import org.apache.commons.fileupload.MultipartStream;
import org.apache.commons.fileupload.ParameterParser;
import org.apache.http.HeaderElement;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicHeaderValueParser;
import groovy.lang.GroovyClassLoader;
import groovy.lang.Script;
import org.codehaus.groovy.runtime.InvokerHelper;
import net.sf.json.JSONObject;
import net.sf.json.JsonConfig;
import net.sf.json.processors.JsonValueProcessor;
public class DirectControlServlet extends HttpServlet {
public static final String module = DirectControlServlet.class.getName();
public static final Map<String, String> serviceURLMappings = new HashMap<String, String>();
private String sessionTokenName = "_AUTHTOKEN";
private String checkSessionService;
private ServletConfig config;
public void init(ServletConfig config) throws ServletException {
// get the mapping file for this webapp
this.config = config;
ServletContext context = config.getServletContext();
String mappingFile = context.getInitParameter("serviceURLMappings");
Debug.logInfo("Mapping file: " + mappingFile, module);
if (context.getInitParameter("sessionTokenName") != null) {
sessionTokenName = context.getInitParameter("sessionTokenName");
}
if (mappingFile == null) {
Debug.logInfo("No mapping file configured", module);
} else {
try {
BufferedReader in = new BufferedReader(new InputStreamReader(context.getResourceAsStream(mappingFile)));
String line;
while ((line = in.readLine()) != null) {
if (line.startsWith("#")) {
continue;
}
String[] confItem = line.split("=");
serviceURLMappings.put(confItem[0], confItem[1]);
}
} catch (IOException ex) {
Debug.logInfo("Could not read mapping file " + mappingFile, module);
throw new ServletException("Could not read mapping file " + mappingFile);
}
}
checkSessionService = context.getInitParameter("checkSessionService");
Debug.logInfo("Checking session with service: " + checkSessionService, module);
}
public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String pathInfo = request.getPathInfo();
String contentType = request.getContentType();
try {
Debug.logInfo("getPathInfo: " + pathInfo +
" request.getContentType: " + contentType, module);
if (pathInfo == null || pathInfo.length() == 0) {
return;
}
pathInfo = pathInfo.substring(1).replaceAll(":", ".");
// Determine the request method for service lookup and parameter filters
String method = request.getParameter("_method");
String httpMethod = request.getMethod();
if (method == null) {
method = request.getMethod();
}
if (method == null) {
method = "GET";
}
// If there is a mapping for this pathInfo, run the corresponding service
// otherwise, return an error
String serviceName = serviceURLMappings.get(pathInfo + "#" + method);
if (serviceName == null) {
serviceName = serviceURLMappings.get(pathInfo);
if (serviceName == null) {
response.setStatus(404);
Debug.logInfo("No mapping found for " + pathInfo + "#" + method, module);
PrintWriter writer = response.getWriter();
writer.println("No mapping found for URL \"" + pathInfo + "\"");
writer.flush();
writer.close();
return;
}
}
Debug.logInfo("Service name %s" +serviceName + " mapped for " + pathInfo + "#" + method, module, serviceName, pathInfo);
AsyncContext context = request.startAsync();
AsyncHandler asyncHandler = new AsyncHandler(serviceName, request, response, context);
context.addListener(asyncHandler);
asyncHandler.sin.setReadListener(asyncHandler);
} catch (Throwable t) {
response.setStatus(500);
PrintWriter writer = response.getWriter();
Debug.logInfo("Exception processing request", module);
Debug.logInfo(t, module);
while (t != null) {
t.printStackTrace(writer);
t = t.getCause();
}
writer.flush();
writer.close();
}
}
protected interface Cleanup {
void cleanup();
}
protected class AsyncHandler implements ReadListener, WriteListener, AsyncListener {
protected final String serviceName;
protected final String outputHandler;
protected final File directory;
protected final HttpServletRequest request;
protected final HttpServletResponse response;
protected final ServletInputStream sin;
protected final AsyncContext context;
protected final File tmpFile;
protected final OutputStream tmpOut;
protected final List<Cleanup> cleanups = new ArrayList<Cleanup>();
protected AsyncHandler(String serviceName, HttpServletRequest request, HttpServletResponse response, AsyncContext context) throws IOException, NoSuchAlgorithmException {
this.directory = (File) request.getServletContext().getAttribute("javax.servlet.context.tempdir");
this.request = request;
this.response = response;
this.sin = request.getInputStream();
this.context = context;
this.tmpFile = deleteFileWhenDone(File.createTempFile("dcs", ".body", directory));
this.tmpOut = new BufferedOutputStream(new FileOutputStream(tmpFile));
String outputHandler = "JSON";
if (serviceName.indexOf("|") != -1) {
String[] parts = serviceName.split("\\|");
serviceName = parts[0];
outputHandler = parts[1];
}
this.serviceName = serviceName;
this.outputHandler = outputHandler;
}
public void onAllDataRead() throws IOException {
//System.err.println("onAllDataRead");
sin.close();
tmpOut.flush();
tmpOut.close();
try {
try {
processRequest();
} catch (GenericServiceException e) {
Throwable cause = e;
while ((cause = cause.getCause()) != null) {
if (cause instanceof ServiceAuthException) {
throw (ServiceAuthException) cause;
}
}
throw e;
}
} catch (IOException e) {
throw e;
} catch (ServiceAuthException e) {
e.printStackTrace();
Debug.logError(e, "ServiceAuthException(setting status to 401)", module);
response.sendError(401, e.getMessage());
setResponseNoCache();
} catch (Exception e) {
e.printStackTrace();
throw (IOException) new IOException(e.getMessage()).initCause(e);
} finally {
context.complete();
}
}
protected File deleteFileWhenDone(final File file) {
file.deleteOnExit();
cleanups.add(new Cleanup() {
public void cleanup() {
file.delete();
}
});
return file;
}
protected void setResponseNoCache() {
// Set to expire far in the past.
response.setHeader("Expires", "Sat, 6 May 1995 12:00:00 GMT");
// Set standard HTTP/1.1 no-cache headers.
response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
// Set IE extended HTTP/1.1 no-cache headers (use addHeader).
response.addHeader("Cache-Control", "post-check=0, pre-check=0");
// Set standard HTTP/1.0 no-cache header.
response.setHeader("Pragma", "no-cache");
}
protected void processRequest() throws Exception {
Map<String, Object> context = new HashMap<String, Object>();
// Directly copy request parameters into context.
for (Enumeration<String> params = request.getParameterNames(); params.hasMoreElements();) {
String param = params.nextElement();
Object[] values = request.getParameterValues(param);
context.put(param, values.length == 1 ? values[0] : values);
}
context.remove("_method");
// Determine type of request and load the context from JSON content or
// parameter values accordingly
String rawContentType = request.getContentType();
String contentType = rawContentType;
if (rawContentType != null) {
int semi = rawContentType.indexOf(";");
if (semi != -1) {
contentType = rawContentType.substring(0, semi);
}
}
if ("application/json".equals(contentType)) {
// Read request body as JSON and insert into the context
Map<String, Object> items = UtilGenerics.cast(JSON.from(UtilIO.readString(new InputStreamReader(new FileInputStream(tmpFile), "UTF-8"))).toObject(Map.class));
for (Object key : items.keySet()) {
context.put((String) key, items.get(key));
}
} else if ("text/csv".equals(contentType)) {
Iterable<CSVRecord> records = CSVFormat.EXCEL.parse(new FileReader(tmpFile));
List<List<String>> data = new ArrayList<List<String>>();
for (CSVRecord record : records) {
List<String> row = new ArrayList<String>();
String cell = null;
Iterator<String> i=record.iterator();
while (i.hasNext()) {
row.add(i.next());
}
data.add(row);
}
context.put("data", data);
} else if (rawContentType != null && rawContentType.indexOf("multipart/form-data") != -1) {
//System.err.println("contentType[" + rawContentType + "]");
String boundary = rawContentType.substring("multipart/form-data; boundary=".length());
MessageDigest digest = MessageDigest.getInstance("SHA-256");
MultipartStream multipartStream = new MultipartStream(new FileInputStream(tmpFile), boundary.getBytes(), 65536, null);
ParameterParser parameterParser = new ParameterParser();
boolean hasNext = multipartStream.skipPreamble();
while (hasNext) {
String[] headerLines = multipartStream.readHeaders().split("[\r\n]+(?! )");
Map<String, String> headerData = new HashMap<String, String>();
for (String headerLine: headerLines) {
//System.err.println("headerLine[" + headerLine + "]");
String[] headerNameAndRawValue = headerLine.split(": ", 2);
headerData.put(headerNameAndRawValue[0].toLowerCase(), headerNameAndRawValue[1]);
HeaderElement[] headerElements = BasicHeaderValueParser.INSTANCE.parseElements(headerNameAndRawValue[1], null);
for (HeaderElement headerElement: headerElements) {
String headerName = headerElement.getName();
String prefix = (headerNameAndRawValue[0] + "." + headerName).toLowerCase();
headerData.put(prefix, headerElement.getValue());
for (NameValuePair nameValuePair: headerElement.getParameters()) {
headerData.put(prefix + "." + nameValuePair.getName(), nameValuePair.getValue());
}
}
}
//System.err.println("header=" + JSON.from(headerData).toString());
String fieldName = headerData.get("content-disposition.form-data.name");
String fileName = headerData.get("content-disposition.form-data.filename");
if (fileName == null) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
multipartStream.readBodyData(baos);
context.put(fieldName, baos.toString());
} else {
File tmpFilePart = deleteFileWhenDone(File.createTempFile("dcs", ".part", directory));
digest.reset();
DigestOutputStream digestOut = new DigestOutputStream(new FileOutputStream(tmpFilePart), digest);
multipartStream.readBodyData(digestOut);
context.put(fieldName, tmpFilePart);
String sha256 = new String(Base64.base64Encode(digest.digest()));
context.put(fieldName + ".contentType", headerData.get("content-type"));
context.put(fieldName + ".sha256", sha256);
}
hasNext = multipartStream.readBoundary();
}
} else {
// Check if the request is a backbone style "emulateJSON" request
if (contentType != null && contentType.indexOf("x-www-form-urlencoded") != -1 && request.getParameter("model") != null) {
Debug.logInfo("MODEL: " + request.getParameter("model"), module);
Map<String, Object> items = UtilGenerics.cast(JSON.from(UtilIO.readString(new FileReader(tmpFile))).toObject(Map.class));
for (Object key : items.keySet()) {
if (!"sessionId".equals(key)) {
context.put((String) key, items.get(key));
}
}
}
}
Delegator delegator = getDelegator(request.getServletContext());
LocalDispatcher dispatcher = getDispatcher(request.getServletContext());
DispatchContext dctx = dispatcher.getDispatchContext();
ModelService model = dctx.getModelService(serviceName);
// some needed info for when running the service
Locale locale = UtilHttp.getLocale(request);
TimeZone timeZone = UtilHttp.getTimeZone(request);
List<Object> errorMessages = new ArrayList<Object>();
// Check if there is an output handler
// If the sessionId parameter is set, attempt to look up the corresponding
// UserLogin and apply it to the service context
String authToken = request.getParameter("sessionId");
if (authToken != null) {
GenericValue authTokenEntity = EntityUtil.getFirst(
EntityUtil.filterByDate(
delegator.findList("Visit",
EntityCondition.makeCondition("cookie",
EntityOperator.EQUALS, authToken),
null, null, null, false)
)
);
if (authTokenEntity != null) {
String userLoginId = authTokenEntity.getString("userLoginId");
if (UtilValidate.isNotEmpty(userLoginId)) {
GenericValue userLogin = EntityUtil.getFirst(
delegator.findList("UserLogin",
EntityCondition.makeCondition("userLoginId",
EntityOperator.EQUALS,
userLoginId.toLowerCase()),
null, null, null, true));
if (userLogin != null) {
context.put("userLogin", userLogin);
}
// prolong the session
if (UtilValidate.isNotEmpty(checkSessionService)) {
Map<String, Object> checkSessionServiceContext = new HashMap<String, Object>();
checkSessionServiceContext.put("sessionId", authToken);
checkSessionServiceContext.put("userLogin", userLogin);
checkSessionServiceContext.put("serviceModel", model);
ModelService checkSessionModel = dctx.getModelService(checkSessionService);
checkSessionServiceContext = checkSessionModel.makeValid(checkSessionServiceContext, ModelService.IN_PARAM, true, errorMessages, timeZone, locale);
dispatcher.runSync(checkSessionService, checkSessionServiceContext);
}
}
}
}
Debug.logInfo("USERLOGIN " + context.get("userLogin") + " AUTHTOKEN " + authToken, module);
context.put("httpHostname", request.getHeader("Host"));
context.put("httpProtocol", request.getProtocol());
context.put("httpScheme", request.getScheme());
Enumeration<String> headerNames = request.getHeaderNames();
Map<String, List<String>> headerMap = new HashMap<String, List<String>>();
while (headerNames.hasMoreElements()) {
String headerName = headerNames.nextElement();
headerMap.put(headerName, Collections.list(request.getHeaders(headerName)));
}
context.put("httpHeaders", headerMap);
context = model.makeValid(context, ModelService.IN_PARAM, true, errorMessages, timeZone, locale);
Map<String, Object> result = dispatcher.runSync(serviceName, context);
if (result.get("httpHeaders") != null) {
Map<String, List<String>> headers = (Map<String,List<String>>) result.get("httpHeaders");
for (Map.Entry<String, List<String>> header : headers.entrySet()) {
for (String value : header.getValue()) {
response.addHeader(header.getKey(), value);
}
}
}
if (result.get("httpCookies") != null) {
List<Cookie> cookies = (List<Cookie>) result.get("httpCookies");
for (Cookie cookie : cookies) {
response.addCookie(cookie);
}
}
result.remove("responseMessage");
Integer httpStatusCode = (Integer) result.remove("httpStatusCode");
int statusCode = httpStatusCode == null ? 200 : httpStatusCode.intValue();
if (result.get("errorMessage") != null) {
statusCode = 400;
}
response.setStatus(statusCode);
setResponseNoCache();
if ("HTML".equals(outputHandler)) {
response.setContentType("text/html; charset=utf-8");
PrintWriter writer = response.getWriter();
String jsonStr = JSON.from(result).toString();
response.setContentLength(jsonStr.getBytes("UTF-8").length);
writer.write(jsonStr);
writer.flush();
writer.close();
}
if ("JSON".equals(outputHandler)) {
response.setContentType("application/x-json;charset=UTF-8");
PrintWriter writer = response.getWriter();
String jsonStr = JSON.from(result).toString();
response.setContentLength(jsonStr.getBytes("UTF-8").length);
writer.write(jsonStr);
writer.flush();
writer.close();
}
if ("CSV".equals(outputHandler)) {
response.setContentType("text/csv");
// Find the first list
List<Map> resList = null;
for (Object o : result.values()) {
if (o instanceof List) {
resList = (List<Map>) o;
break;
}
}
if (resList != null) {
PrintWriter writer = response.getWriter();
List<Map> data = null;
if (resList.get(1) instanceof List) {
data = (List<Map>)(resList.get(1));
} else {
data = resList;
}
if (data.size() > 0) {
Set keys = ((Map) data.get(0)).keySet();
Iterator hi = keys.iterator();
StringBuffer csvBuf = new StringBuffer();
while(hi.hasNext()) {
csvBuf.append(hi.next());
if (hi.hasNext()) csvBuf.append(",");
}
writer.println(csvBuf);
for (Map row : data) {
Iterator i = keys.iterator();
csvBuf = new StringBuffer();
while(i.hasNext()) {
Object val = row.get(i.next());
if (!"null".equals("" + val)) csvBuf.append(val);
if (i.hasNext()) csvBuf.append(",");
}
writer.println(csvBuf);
}
}
writer.flush();
writer.close();
}
}
if ("PDF".equals(outputHandler)) {
LibreOfficeRenderer.service(request, response, result);
}
//sout.setWriteListener(this);
}
public void onDataAvailable() throws IOException {
byte[] buffer = new byte[65536];
int numRead;
while (sin.isReady() && (numRead = sin.read(buffer)) > 0) {
tmpOut.write(buffer, 0, numRead);
}
}
public void onWritePossible() throws IOException {
context.complete();
}
public void onError(Throwable t) {
t.printStackTrace();
context.complete();
}
public void onComplete(AsyncEvent event) throws IOException {
//System.err.println("onComplete");
for (Cleanup cleanup: cleanups) {
cleanup.cleanup();
}
}
public void onError(AsyncEvent event) {
event.getThrowable().printStackTrace();
}
public void onStartAsync(AsyncEvent event) {
//System.err.println("onStartAsync");
}
public void onTimeout(AsyncEvent event) {
////System.err.println("onTimeout");
}
}
protected static LocalDispatcher getDispatcher(ServletContext servletContext) {
LocalDispatcher dispatcher = (LocalDispatcher) servletContext.getAttribute("dispatcher");
if (dispatcher == null) {
Delegator delegator = getDelegator(servletContext);
dispatcher = makeWebappDispatcher(servletContext, delegator);
servletContext.setAttribute("dispatcher", dispatcher);
}
return dispatcher;
}
/** This method only sets up a dispatcher for the current webapp and passed in delegator, it does not save it to the ServletContext or anywhere else, just returns it */
public static LocalDispatcher makeWebappDispatcher(ServletContext servletContext, Delegator delegator) {
if (delegator == null) {
Debug.logInfo("[ContextFilter.init] ERROR: delegator not defined.", module);
return null;
}
// get the unique name of this dispatcher
String dispatcherName = servletContext.getInitParameter("localDispatcherName");
if (dispatcherName == null) {
Debug.logInfo("No localDispatcherName specified in the web.xml file", module);
dispatcherName = delegator.getDelegatorName();
}
LocalDispatcher dispatcher = ServiceContainer.getLocalDispatcher(dispatcherName, delegator);
if (dispatcher == null) {
Debug.logInfo("[ContextFilter.init] ERROR: dispatcher could not be initialized.", module);
}
return dispatcher;
}
protected static Delegator getDelegator(ServletContext servletContext) {
Delegator delegator = (Delegator) servletContext.getAttribute("delegator");
if (delegator == null) {
String delegatorName = servletContext.getInitParameter("entityDelegatorName");
if (delegatorName == null || delegatorName.length() <= 0) {
delegatorName = "default";
}
if (Debug.verboseOn()) Debug.logVerbose("Setup Entity Engine Delegator with name " + delegatorName, module);
delegator = DelegatorFactory.getDelegator(delegatorName);
servletContext.setAttribute("delegator", delegator);
if (delegator == null) {
Debug.logInfo("[ContextFilter.init] ERROR: delegator factory returned null for delegatorName \"" + delegatorName + "\"", module);
}
}
return delegator;
}
protected static class ISODateValueProcessor implements JsonValueProcessor {
public ISODateValueProcessor() {
}
public Object processArrayValue( Object value, JsonConfig jsonConfig ) {
return value;
}
public Object processObjectValue( String key, Object value, JsonConfig jsonConfig ) {
return process(value, jsonConfig);
}
private Object process( Object value, JsonConfig jsonConfig ) {
String newValue = value.toString();
return newValue;
}
}
}