2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
30 package mircoders.localizer.basic;
32 import java.io.IOException;
33 import java.io.PrintWriter;
34 import java.io.StringWriter;
35 import java.util.HashMap;
36 import java.util.List;
37 import java.util.Locale;
39 import java.util.Vector;
42 import org.apache.commons.net.smtp.SMTPClient;
43 import org.apache.commons.net.smtp.SMTPReply;
44 import org.apache.struts.util.MessageResources;
46 import mir.config.MirPropertiesConfiguration;
47 import mir.generator.Generator;
48 import mir.generator.GeneratorHelper;
49 import mir.log.LoggerWrapper;
50 import mir.session.HTTPAdapters.HTTPRequestAdapter;
51 import mir.session.Request;
52 import mir.session.Response;
53 import mir.session.Session;
54 import mir.session.SessionExc;
55 import mir.session.SessionFailure;
56 import mir.session.SessionHandler;
57 import mir.session.ValidationError;
58 import mir.session.ValidationHelper;
59 import mir.util.StringRoutines;
61 import mircoders.entity.EntityContent;
62 import mircoders.global.CacheKey;
63 import mircoders.global.MirGlobal;
64 import mircoders.module.ModuleContent;
65 import mircoders.storage.DatabaseContent;
70 * <p>Title: Tenative session handler for emailing postings </p>
71 * <p>Description: </p>
72 * <p>Copyright: Copyright (c) 2003</p>
79 public class MirBasicEmailArticleHandler implements SessionHandler {
80 protected LoggerWrapper logger;
81 protected MirPropertiesConfiguration configuration;
83 public MirBasicEmailArticleHandler() {
84 logger = new LoggerWrapper("Localizer.EmailArticle");
86 configuration = MirPropertiesConfiguration.instance();
89 logger.fatal("Cannot load configuration: " + t.toString());
91 throw new RuntimeException("Cannot load configuration: " + t.toString());
95 public void processRequest(Request aRequest, Session aSession, Response aResponse) throws SessionExc, SessionFailure {
96 if (aSession.getAttribute("initialRequest") == null) {
97 aSession.setAttribute("initialRequest", "no");
98 initialRequest(aRequest, aSession, aResponse);
101 subsequentRequest(aRequest, aSession, aResponse);
105 protected void initialRequest(Request aRequest, Session aSession, Response aResponse) throws SessionExc, SessionFailure {
106 initializeSession(aRequest, aSession);
107 makeInitialResponse(aRequest, aSession, aResponse);
110 protected void initializeSession(Request aRequest, Session aSession) throws SessionExc, SessionFailure {
111 /* do nothing for now */
115 protected void makeInitialResponse(Request aRequest, Session aSession, Response aResponse) throws SessionExc, SessionFailure {
116 /* if you do not supply an aid to this handler, it should return an error page */
117 /* if you supply a non-functioning/non-published aid to this handler, it should return an error page, but at a
118 later stage, because we don't check the db until we are potentially populating the cache*/
119 /* otherwise you get to address an article and add some comments */
120 String articleID = aRequest.getParameter("mail_aid");
121 if (articleID == null){
122 throw new SessionExc("makeInitialResponse: article id not set!");
125 aSession.setAttribute("email.aid",articleID);
126 aResponse.setResponseValue("errors", null);
128 String mail_language = configuration.getString("Mir.Login.DefaultLanguage", "en");
129 aResponse.setResponseValue("mail_language",mail_language);
130 aResponse.setResponseValue("mail_to","");
131 aResponse.setResponseValue("mail_from","");
132 aResponse.setResponseValue("mail_from_name","");
133 aResponse.setResponseValue("mail_comment","");
135 aResponse.setResponseGenerator(configuration.getString("Localizer.OpenSession.email.PrepareTemplate"));
141 protected boolean shouldSendMail(Request aRequest, Session aSession, Response aResponse,List aValidationErrors) throws SessionExc, SessionFailure{
142 if (validate(aRequest,aSession,aResponse,aValidationErrors)){
143 String to=aRequest.getParameter("mail_to");
144 if (to.indexOf('@') == -1
145 || to.indexOf('\n') != -1
146 || to.indexOf('\r') != -1
147 || to.indexOf(',') != -1) {
148 throw new SessionExc("Invalid to address"); // we might want to see this in a log, so it is not a validation error
150 else return true; // go for it
153 return false; //validation failed, but not in a potentially abusive way
162 protected boolean validate(Request aRequest, Session aSession, Response aResponse,List aValidationErrors) throws SessionExc, SessionFailure{
164 if (ValidationHelper.testFieldEntered(aRequest, "mail_to", "validationerror.missing", aValidationErrors))
165 aResponse.setResponseValue("mail_to",aRequest.getParameter("mail_to"));
166 if (ValidationHelper.testFieldEntered(aRequest, "mail_from", "validationerror.missing", aValidationErrors))
167 aResponse.setResponseValue("mail_from",aRequest.getParameter("mail_from"));
168 if (ValidationHelper.testFieldEntered(aRequest, "mail_from_name", "validationerror.missing", aValidationErrors))
169 aResponse.setResponseValue("mail_from_name",aRequest.getParameter("mail_from_name"));
170 if (ValidationHelper.testFieldEntered(aRequest, "mail_language", "validationerror.missing", aValidationErrors))
171 aResponse.setResponseValue("mail_language",aRequest.getParameter("mail_language"));
173 return (aValidationErrors==null || aValidationErrors.size() == 0);
176 protected String getEmailText(String aid,String language) throws SessionExc{
178 CacheKey theCacheKey=new CacheKey("email",aid+language);
180 if (MirGlobal.mruCache().hasObject(theCacheKey)){
181 logger.info("fetching email text for article "+aid+" from cache");
182 theText = (String) MirGlobal.mruCache().getObject(theCacheKey);
186 ModuleContent contentModule = new ModuleContent(DatabaseContent.getInstance());
187 EntityContent contentEnt = (EntityContent) contentModule.getById(aid);
189 Map articleData = new HashMap();
190 articleData.put("article", MirGlobal.localizer().dataModel().adapterModel().makeEntityAdapter("content", contentEnt));
191 articleData.put("languagecode", language);
192 Map responseData = GeneratorHelper.makeBasicGenerationData(new Locale[] {new Locale(language,""),new Locale(configuration.getString("Mir.Admin.FallbackLanguage", "en"), "")},"bundles.open","bundles.open");
193 responseData.put("data",articleData);
195 String emailAnArticleTemplate = configuration.getString("Localizer.OpenSession.email.MailTemplate");
197 Generator generator = MirGlobal.localizer().generators().makeOpenPostingGeneratorLibrary().makeGenerator(emailAnArticleTemplate);
199 StringWriter theEmailStringWriter = new StringWriter();
200 PrintWriter theEmailPrintWriter = new PrintWriter(theEmailStringWriter);
201 generator.generate(theEmailPrintWriter, responseData, logger);
203 theEmailStringWriter.close();
205 theText = theEmailStringWriter.toString();
206 MirGlobal.mruCache().storeObject(theCacheKey, theText);
208 catch (Throwable e) {
209 throw new SessionExc("Couldn't get content for article " + aid + language + ": " + e.getMessage());
216 protected String getExtraEmailHeaders(Request aRequest,String to,String from) throws SessionExc {
218 String headers = "To: " + to + "\nReply-To: "+ from+"\n";;
219 if (configuration.getString("Localizer.OpenSession.email.includeSenderIP","no").equals("yes"))
220 headers= headers+"X-Originating-IP: "+ ((HTTPRequestAdapter)aRequest).getRequest().getRemoteAddr() + "\n";
225 protected String interpolateComment(String emailText,String comment,String from_name,String language) throws SessionExc{
226 if (comment != null) {
227 MessageResources messages = MessageResources.getMessageResources("bundles.open");
228 String commentTextToInsert=messages.getMessage(new Locale(language,""),"email.comment.intro", from_name)+"\n";
231 emailText=StringRoutines.performRegularExpressionReplacement(emailText,"!COMMENT!",commentTextToInsert);
234 throw new SessionExc("Problem doing regular expression replacement :" + e.toString());
239 emailText=StringRoutines.performRegularExpressionReplacement(emailText,"!COMMENT!","");
242 throw new SessionExc("Problem doing regular expression replacement " + e.toString());
248 protected boolean doTheSMTP(String aMessage,String aTo,String aFrom) throws SessionExc{
249 SMTPClient client=new SMTPClient();
252 client.connect(configuration.getString("ServletModule.OpenIndy.SMTPServer"));
253 reply = client.getReplyCode();
255 if (!SMTPReply.isPositiveCompletion(reply)) {
257 throw new SessionExc("SMTP server refused connection.");
259 boolean trueIfItWorked = client.sendSimpleMessage(configuration.getString("ServletModule.OpenIndy.EmailIsFrom"), aTo, aMessage);
261 // mission accomplished??
262 if (! trueIfItWorked)
263 throw new SessionExc(client.getReplyString());
265 return trueIfItWorked;
267 catch(IOException e) {
268 if(client.isConnected()) {
271 } catch(IOException f) {
275 throw new SessionExc(e.getMessage());
279 protected boolean sendMail(Request aRequest,Session aSession,Response aResponse) throws SessionExc,SessionFailure {
280 String aid=aRequest.getParameter("mail_aid");
281 String to=aRequest.getParameter("mail_to");
282 String from=aRequest.getParameter("mail_from");
283 String from_name=aRequest.getParameter("mail_from_name");
284 String language=aRequest.getParameter("mail_language");
285 String comment=aRequest.getParameter("mail_comment");
287 String theEmailText=getEmailText((String) aSession.getAttribute("email.aid"),language);
288 String headers=getExtraEmailHeaders(aRequest,to,from);
289 theEmailText=interpolateComment(theEmailText,comment,from_name,language);
290 String message=headers+"\n"+theEmailText;
292 return doTheSMTP(message,to,from);
297 protected void subsequentRequest(Request aRequest, Session aSession, Response aResponse) throws SessionExc, SessionFailure {
298 List validationErrors = new Vector();
299 if (shouldSendMail(aRequest,aSession,aResponse,validationErrors)){
301 sendMail(aRequest,aSession,aResponse);
302 aResponse.setResponseGenerator(configuration.getString("Localizer.OpenSession.email.DoneTemplate"));
305 aResponse.setResponseValue("mail_comment",aRequest.getParameter("mail_comment")); //everything else is required
306 aResponse.setResponseValue("errors",validationErrors);
307 aResponse.setResponseGenerator(configuration.getString("Localizer.OpenSession.email.PrepareTemplate"));
313 String mail_language = aRequest.getParameter("mail_language");
314 if (mail_language == null)
315 mail_language = configuration.getString("Mir.Login.DefaultLanguage", "en");
317 aResponse.setResponseValue("mail_language",mail_language);