Send to Postkorb on request

ticketing-eventing/README.md

@@ -24,7 +24,7 @@ Open **Event-Service** via Swagger (http://localhost:8080/swagger-ui/index.html)
 - User: zammad
 - Password: password
 - Method: POST `/api/event`
-- X-Zammad-Trigger: `Trigger Name`
+- X-Zammad-Trigger: `T2805_Event_Nachricht_In_Postkorb`
 - X-Zammad-Delivery: `myID`
 - Request Body:
 ```json
@@ -33,7 +33,7 @@ Open **Event-Service** via Swagger (http://localhost:8080/swagger-ui/index.html)
     "status": "closed",
     "status_id": "1",
     "anliegenart": "technischer Bürgersupport",
-    "lhmExtId": "33caabe6-317c-4c2d-8bf7-6c36230599db"
+    "lhmextid": "33caabe6-317c-4c2d-8bf7-6c36230599db"
 }
 ```
 

ticketing-eventing/eventing-service/src/main/resources/application-local.yml

@@ -37,5 +37,7 @@ logging:
 dbs:
   eventing:
     trigger-mapping:
-      - trigger-name: "Trigger Name"
+      - trigger-name: "T2800_Event_Statusaenderung"
         action: "state_changed"
+      - trigger-name: "T2805_Event_Nachricht_In_Postkorb"
+        action: "send_to_postbox"

ticketing-eventing/mail-handler-service/pom.xml

@@ -43,7 +43,7 @@
 
         <!-- Core Frameworks -->
         <spring-cloud-dependencies.version>2025.0.0</spring-cloud-dependencies.version> <!-- Must match the chosen Spring Boot version -->
-        <dbs-handler-core.version>0.1.0</dbs-handler-core.version>
+        <dbs-handler-core.version>0.2.0</dbs-handler-core.version>
 
         <!-- Logging -->
         <logstash-logback-encoder.version>8.1</logstash-logback-encoder.version>

ticketing-eventing/mail-handler-service/src/main/java/de/muenchen/oss/dbs/ticketing/eventing/mailhandler/adapter/out/mail/MailAdapter.java

@@ -1,31 +1,59 @@
 package de.muenchen.oss.dbs.ticketing.eventing.mailhandler.adapter.out.mail;
 
 import de.muenchen.oss.dbs.ticketing.eventing.mailhandler.application.port.out.SendMailOutPort;
+import jakarta.activation.DataSource;
 import jakarta.mail.MessagingException;
 import jakarta.mail.internet.MimeMessage;
+import jakarta.mail.util.ByteArrayDataSource;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Map;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.mail.javamail.JavaMailSender;
 import org.springframework.mail.javamail.MimeMessageHelper;
 import org.springframework.stereotype.Service;
 
 @Service
 @RequiredArgsConstructor
+@Slf4j
 public class MailAdapter implements SendMailOutPort {
     private final JavaMailSender mailSender;
     private final MailProperties mailProperties;
 
     @Override
-    public void sendMail(final String recipient, final String subject, final String body) {
+    public void sendMail(final MailMessage mailMessage) {
         final MimeMessage mimeMessage = mailSender.createMimeMessage();
-        final MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, "utf-8");
         try {
+            final MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true, "utf-8");
             helper.setFrom(mailProperties.getFromAddress());
-            helper.setTo(recipient);
-            helper.setSubject(subject);
-            helper.setText(body, true);
+            helper.setTo(mailMessage.getRecipient());
+            helper.setSubject(mailMessage.getSubject());
+            helper.setText(mailMessage.getBody(), true);
+            for (final Map.Entry<String, InputStream> entry : mailMessage.getAttachments().entrySet()) {
+                //TODO is there a way to do this with streaming? The following line loads the attachment into RAM...
+                final DataSource dataSource = new ByteArrayDataSource(entry.getValue(), "application/octet-stream");
+                helper.addAttachment(entry.getKey(), dataSource);
+                //maybe like this?
+                //helper.addAttachment(e.getKey(), new InputStreamSourceImpl(e.getValue()));
+            }
             mailSender.send(mimeMessage);
-        } catch (MessagingException e) {
+        } catch (final MessagingException | IOException e) {
             throw new RuntimeException(e);
         }
     }
+
+    //    private class InputStreamSourceImpl implements InputStreamSource {
+    //        private final InputStream inputStream;
+    //
+    //        public InputStreamSourceImpl(InputStream inputStream) {
+    //            this.inputStream = inputStream;
+    //        }
+    //
+    //        @Override
+    //        public InputStream getInputStream() {
+    //            return inputStream;
+    //        }
+    //    }
+
 }

ticketing-eventing/mail-handler-service/src/main/java/de/muenchen/oss/dbs/ticketing/eventing/mailhandler/adapter/out/mail/MailMessage.java

@@ -0,0 +1,15 @@
+package de.muenchen.oss.dbs.ticketing.eventing.mailhandler.adapter.out.mail;
+
+import java.io.InputStream;
+import java.util.Map;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@Data
+@AllArgsConstructor
+public class MailMessage {
+    private String recipient;
+    private String subject;
+    private String body;
+    private Map<String, InputStream> attachments;
+}

ticketing-eventing/mail-handler-service/src/main/java/de/muenchen/oss/dbs/ticketing/eventing/mailhandler/application/port/out/SendMailOutPort.java

@@ -1,5 +1,7 @@
 package de.muenchen.oss.dbs.ticketing.eventing.mailhandler.application.port.out;
 
+import de.muenchen.oss.dbs.ticketing.eventing.mailhandler.adapter.out.mail.MailMessage;
+
 public interface SendMailOutPort {
-    void sendMail(String recipient, String subject, String body);
+    void sendMail(MailMessage mailMessage);
 }

ticketing-eventing/mail-handler-service/src/main/java/de/muenchen/oss/dbs/ticketing/eventing/mailhandler/application/usecase/EventHandlingUseCase.java

@@ -1,15 +1,20 @@
 package de.muenchen.oss.dbs.ticketing.eventing.mailhandler.application.usecase;
 
 import com.fasterxml.jackson.dataformat.xml.XmlMapper;
+import de.muenchen.oss.dbs.ticketing.eai.client.model.ArticleAttachment;
 import de.muenchen.oss.dbs.ticketing.eai.client.model.ArticleInternal;
 import de.muenchen.oss.dbs.ticketing.eai.client.model.TicketInternal;
+import de.muenchen.oss.dbs.ticketing.eai.client.model.UpdateTicketDTO;
 import de.muenchen.oss.dbs.ticketing.eventing.handlercore.application.port.in.EventHandlerInPort;
 import de.muenchen.oss.dbs.ticketing.eventing.handlercore.application.port.out.TicketingOutPort;
 import de.muenchen.oss.dbs.ticketing.eventing.handlercore.domain.model.Event;
+import de.muenchen.oss.dbs.ticketing.eventing.mailhandler.adapter.out.mail.MailMessage;
 import de.muenchen.oss.dbs.ticketing.eventing.mailhandler.application.port.out.SendMailOutPort;
 import de.muenchen.oss.dbs.ticketing.eventing.mailhandler.config.MailHandlerProperties;
+import de.muenchen.oss.dbs.ticketing.eventing.mailhandler.exceptions.NoValidArticleException;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.stream.Collectors;
 import lombok.RequiredArgsConstructor;
@@ -22,6 +27,12 @@
 public class EventHandlingUseCase implements EventHandlerInPort {
     private static final String INTERNAL_ATTACHMENTS_ARTICLE_TITLE = "Interner Artikel für interne Anhänge.";
     private static final String FORM_ATTACHMENT_NAME = "XML-Daten.xml";
+    public static final String TICKETING_VERTRAUENSNIVEAU = "ticketingVertrauensniveau";
+    public static final String LEGACY_POSTKORB_HANDLE = "legacyPostkorbHandle";
+    public static final String ACCOUNT_SOURCE = "accountSource";
+
+    public static final String TO_POSTBOX_DEFAULT = "send";
+    public static final String TO_POSTBOX_HIGH = "send_high_authLevel";
 
     private final XmlMapper xmlMapper = new XmlMapper();
     private final MailHandlerProperties mailHandlerProperties;
@@ -36,52 +47,94 @@ public void handleEvent(final Event event) {
             return;
         }
         log.info("Handling event");
-        // find event ticket
-        final TicketInternal ticket = ticketingOutPort.getTicket(event.ticket());
-        // get parsed form
-        final Map<String, Object> form = getParsedForm(ticket);
-        // send mail
-        final String subject = buildSubject(ticket, form);
-        final String body = buildBody(ticket);
-        sendMailOutport.sendMail(
-                mailHandlerProperties.getRecipient(), subject, body);
-        log.info("Handled event successfully");
+        try {
+            // find event ticket
+            final TicketInternal ticket = ticketingOutPort.getTicket(event.ticket());
+            //check if ticket should be sent
+            if (!isRelevantTicket(ticket)) {
+                log.debug("Ticket not relevant");
+                return;
+            }
+            // get parsed form
+            final Map<String, Object> form = getParsedForm(ticket);
+            //find relevant article
+            final ArticleInternal article = findRelevantArticle(ticket);
+            sendMail(ticket, form, article);
+
+            //reset flag sende_nachricht_nach_extern
+            resetTicket(ticket);
+
+            log.info("Event handled successfully");
+        } catch (NoValidArticleException e) {
+            log.error(e.getMessage());
+            log.error("Event NOT handled successfully");
+        }
     }
 
     private boolean isRelevantEvent(final Event event) {
         log.debug("checking event: " + event);
         return
-        // state was changed
-        mailHandlerProperties.getStateChangeAction().equals(event.action()) &&
-        // new state is closed
-                mailHandlerProperties.getClosedState().equals(event.status()) &&
-                // is relevant anliegen
+        // state was changed by trigger send-to-postbox
+        mailHandlerProperties.getTicketChangeAction().equals(event.action()) &&
+        // is relevant anliegen
                 mailHandlerProperties.getRelevantTicketTypes().contains(event.anliegenart()) &&
                 // user does have an lhmExtId (i.e. BayernID or BundID user)
                 event.lhmExtId() != null && !event.lhmExtId().isEmpty();
     }
 
-    private String buildSubject(final TicketInternal ticket, final Map<String, Object> form) {
-        return "[%s;%s;%s;%s] Ihr Anliegen '%s' wurde abschließend bearbeitet"
-                .formatted(
-                        form.get("legacyPostkorbHandle"),
-                        form.get("accountSource"),
-                        form.get("ticketingVertrauensniveau"),
-                        "Dummy",
-                        ticket.getTitle());
+    private boolean isRelevantTicket(final TicketInternal ticket) {
+        log.debug("Checking value of sende_nachricht_nach_extern: " + ticket.getSendeNachrichtNachExtern());
+        return TO_POSTBOX_DEFAULT.equals(ticket.getSendeNachrichtNachExtern()) || TO_POSTBOX_HIGH.equals(ticket.getSendeNachrichtNachExtern());
     }
 
-    private String buildBody(final TicketInternal ticket) {
+    private ArticleInternal findRelevantArticle(final TicketInternal ticket) throws NoValidArticleException {
         assert ticket.getArticles() != null;
         return ticket.getArticles().stream()
-                // only public articles of type "web" or "note"
+                // find last public articles of type "note"
                 .filter(i -> Boolean.FALSE.equals(i.getInternal()) &&
-                        (ArticleInternal.TypeEnum.WEB.equals(i.getType()) || ArticleInternal.TypeEnum.NOTE.equals(i.getType())))
-                // format single article
-                .map(i -> "Titel: %s<br>Body: %s".formatted(i.getSubject(), i.getBody()))
-                // build body
-                .collect(Collectors.joining("<hr>"));
+                        ArticleInternal.TypeEnum.NOTE.equals(i.getType()))
+                .reduce((first, second) -> second)
+                .orElseThrow(() -> new NoValidArticleException("no valid article found in ticket " + ticket.getId()));
+    }
+
+    private void sendMail(final TicketInternal ticket, final Map<String, Object> form, final ArticleInternal article) {
+        final String recipient = mailHandlerProperties.getRecipient();
+        final String subject = buildSubject(ticket, form);
+        log.debug("Created subject: " + subject);
+        final String body = buildBody(article);
+        log.debug("Created body: " + body);
+        final Map<String, InputStream> attachments = buildAttachments(article);
+        sendMailOutport.sendMail(new MailMessage(recipient, subject, body, attachments));
+    }
 
+    private String buildSubject(final TicketInternal ticket, final Map<String, Object> form) {
+        final String authlevel;
+        if (form.get(TICKETING_VERTRAUENSNIVEAU) == null) {
+            log.error("no ticketingVertrauensniveau found in ticket " + ticket.getId() + " - setting level1");
+            authlevel = "level1";
+        } else {
+            authlevel = TO_POSTBOX_HIGH.equals(ticket.getSendeNachrichtNachExtern()) ? "level3" : String.valueOf(form.get(TICKETING_VERTRAUENSNIVEAU));
+        }
+
+        return "[%s;%s;%s;%s] Neue Nachricht zu Ihrem Anliegen '%s'"
+                .formatted(
+                        form.get(LEGACY_POSTKORB_HANDLE),
+                        form.get(ACCOUNT_SOURCE),
+                        authlevel,
+                        "Zammad-Eventing",
+                        ticket.getTitle());
+    }
+
+    private String buildBody(final ArticleInternal article) {
+        return article.getBody();
+    }
+
+    private Map<String, InputStream> buildAttachments(final ArticleInternal article) {
+        if (article.getAttachments() == null) {
+            return new HashMap<>();
+        }
+        return article.getAttachments().stream().collect(Collectors.toMap(ArticleAttachment::getFilename,
+                a -> ticketingOutPort.getAttachmentContent(article.getTicketId(), article.getId(), a.getId())));
     }
 
     private Map<String, Object> getParsedForm(final TicketInternal ticket) {
@@ -109,4 +162,12 @@ private Map<String, Object> getParsedForm(final TicketInternal ticket) {
             throw new RuntimeException(e);
         }
     }
+
+    private void resetTicket(final TicketInternal ticket) {
+        final UpdateTicketDTO updateTicketDTO = new UpdateTicketDTO();
+        updateTicketDTO.setId(ticket.getId());
+        updateTicketDTO.setDirektkennwort(ticket.getDirektkennwort());
+        updateTicketDTO.setSendeNachrichtNachExtern(null);
+        ticketingOutPort.updateTicket(updateTicketDTO);
+    }
 }

ticketing-eventing/mail-handler-service/src/main/java/de/muenchen/oss/dbs/ticketing/eventing/mailhandler/config/MailHandlerProperties.java

@@ -18,9 +18,7 @@ public class MailHandlerProperties {
     @NotBlank
     private String recipient;
     @NotBlank
-    private String stateChangeAction;
-    @NotBlank
-    private String closedState;
+    private String ticketChangeAction;
     @NotNull
     private List<String> relevantTicketTypes;
 }

ticketing-eventing/mail-handler-service/src/main/java/de/muenchen/oss/dbs/ticketing/eventing/mailhandler/exceptions/NoValidArticleException.java

@@ -0,0 +1,13 @@
+package de.muenchen.oss.dbs.ticketing.eventing.mailhandler.exceptions;
+
+import java.io.Serial;
+
+public class NoValidArticleException extends Exception {
+    // Default access modifier is private
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    public NoValidArticleException(final String s) {
+        super(s);
+    }
+}

ticketing-eventing/mail-handler-service/src/main/resources/application-local.yml

@@ -23,13 +23,13 @@ spring:
       client:
         provider:
           zammad:
-            issuer-uri: TODO
+            issuer-uri: https://ssodev.muenchen.de/auth/realms/KM81
         registration:
           zammad:
             provider: zammad
             authorization-grant-type: client_credentials
-            client-id: TODO
-            client-secret: TODO
+            client-id: mpdz-ticketing-fk
+            client-secret: V8zmjkcqgXE9xIWhljjVT45Bxli2c02B
 
 dbs:
   eai:

ticketing-eventing/mail-handler-service/src/main/resources/application.yml

@@ -22,14 +22,15 @@ spring:
           json:
             trusted:
               packages: '*'
+  codec:
+    max-in-memory-size: 5MB
 
 dbs:
   eventing:
     mail:
       smtp:
         from-address: ${spring.mail.username}
-      state-change-action: "state_changed"
-      closed-state: "closed"
+      ticket-change-action: "send_to_postbox"
 
 server:
   shutdown: "graceful"