https://gitlab.com/jottyfan/camporganizer2/-/issues/28

src/main/java/de/jottyfan/camporganizer/module/admin/AdminController.java

@@ -1,12 +1,22 @@
 package de.jottyfan.camporganizer.module.admin;
 
 import javax.servlet.http.HttpServletRequest;
+import javax.validation.Valid;
 
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.ObjectError;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.PostMapping;
 
 import de.jottyfan.camporganizer.module.camplist.CommonController;
+import de.jottyfan.camporganizer.module.mail.MailBean;
 
 /**
  *
@@ -16,6 +26,37 @@ import de.jottyfan.camporganizer.module.camplist.CommonController;
 @Controller
 public class AdminController extends CommonController {
 
+	private static final Logger LOGGER = LogManager.getLogger(AdminController.class);
+
+	@Autowired
+	private AdminService service;
+
+	@Value("${spring.mail.username}")
+	private String from;
+
+	@GetMapping("/admin/mail")
+	public String getMail(Model model, HttpServletRequest request) {
+		super.setupSession(model, request);
+		MailBean mailBean = new MailBean();
+		mailBean.setFrom(from);
+		mailBean.getTo().add(getCurrentEmail(request));
+		model.addAttribute("bean", mailBean);
+		return "/admin/mail";
+	}
+
+	@PostMapping("/admin/mail/send")
+	public String sendMail(@Valid @ModelAttribute("bean") MailBean bean, final BindingResult bindingResult, Model model,
+			HttpServletRequest request) {
+		super.setupSession(model, request);
+		if (bindingResult.hasErrors()) {
+			for (ObjectError error : bindingResult.getAllErrors())
+			LOGGER.error("error {}: {}", error.getCode(), error.getDefaultMessage());
+			return "/admin/mail";
+		}
+		service.sendMail(bean);
+		return "redirect:/admin";
+	}
+
 	@GetMapping("/admin")
 	public String getMain(Model model, HttpServletRequest request) {
 		super.setupSession(model, request);

src/main/java/de/jottyfan/camporganizer/module/admin/AdminService.java

@@ -0,0 +1,26 @@
+package de.jottyfan.camporganizer.module.admin;
+
+import javax.validation.Valid;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import de.jottyfan.camporganizer.module.mail.MailBean;
+import de.jottyfan.camporganizer.module.mail.MailRepository;
+
+/**
+ *
+ * @author jotty
+ *
+ */
+@Service
+public class AdminService {
+
+	@Autowired
+	private MailRepository mailRepository;
+
+	public void sendMail(@Valid MailBean bean) {
+		mailRepository.sendMail(bean);
+	}
+
+}

src/main/java/de/jottyfan/camporganizer/module/camplist/CommonController.java

@@ -24,6 +24,18 @@ public abstract class CommonController {
 		return ksc == null ? null : ksc.getIdToken().getPreferredUsername();
 	}
 
+	/**
+	 * try to get th currnt keycloak email
+	 *
+	 * @param request the request
+	 * @return the email or null
+	 */
+	public String getCurrentEmail(HttpServletRequest request) {
+		KeycloakSecurityContext ksc = (KeycloakSecurityContext) request
+				.getAttribute(KeycloakSecurityContext.class.getName());
+		return ksc == null ? null : ksc.getIdToken().getEmail();
+	}
+
 	/**
 	 * setup the session for the template
 	 *

src/main/java/de/jottyfan/camporganizer/module/confirmation/person/impl/PersonGateway.java

@@ -12,9 +12,7 @@ import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.time.temporal.ChronoUnit;
 import java.util.ArrayList;
-import java.util.HashSet;
 import java.util.List;
-import java.util.Set;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -38,6 +36,7 @@ import de.jottyfan.camporganizer.db.jooq.tables.records.TCampRecord;
 import de.jottyfan.camporganizer.db.jooq.tables.records.TPersonRecord;
 import de.jottyfan.camporganizer.db.jooq.tables.records.TRssRecord;
 import de.jottyfan.camporganizer.module.camplist.LambdaResultWrapper;
+import de.jottyfan.camporganizer.module.mail.MailBean;
 import de.jottyfan.camporganizer.module.mail.MailRepository;
 
 /**
@@ -251,11 +250,13 @@ public class PersonGateway {
 			}
 		}
 		if (sendMail) {
-			Set<String> to = new HashSet<>();
-			to.add(email);
-			to.add(bean.getEmail());
 			try {
-				mailRepository.sendMail(to, subject, buf.toString()); // no matter if the sending works
+				MailBean mailBean = new MailBean();
+				mailBean.getTo().add(email);
+				mailBean.getTo().add(bean.getEmail());
+				mailBean.setSubject(subject);
+				mailBean.setMessage(buf.toString());
+				mailRepository.sendMail(mailBean); // no matter if the sending works
 			} catch (Exception e) {
 				LOGGER.error(e.getMessage(), e);
 			}

src/main/java/de/jottyfan/camporganizer/module/mail/MailBean.java

@@ -0,0 +1,94 @@
+package de.jottyfan.camporganizer.module.mail;
+
+import java.io.Serializable;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotEmpty;
+
+/**
+ *
+ * @author jotty
+ *
+ */
+public class MailBean implements Serializable {
+	private static final long serialVersionUID = 1L;
+
+	@NotEmpty
+	private final Set<String> to;
+
+	@NotBlank
+	private String from;
+	private String subject;
+	private String message;
+
+	public MailBean() {
+		this.to = new HashSet<>();
+	}
+
+	public String getTos() {
+		StringBuilder buf = new StringBuilder();
+		boolean first = true;
+		for (String s : to) {
+			buf.append(first ? "" : ";").append(s);
+			first = false;
+		}
+		return buf.toString();
+	}
+
+	public void setTos(String tos) {
+		this.to.clear();
+		this.to.addAll(List.of(tos.split(";")));
+	}
+
+	/**
+	 * @return the from
+	 */
+	public String getFrom() {
+		return from;
+	}
+
+	/**
+	 * @param from the from to set
+	 */
+	public void setFrom(String from) {
+		this.from = from;
+	}
+
+	/**
+	 * @return the subject
+	 */
+	public String getSubject() {
+		return subject;
+	}
+
+	/**
+	 * @param subject the subject to set
+	 */
+	public void setSubject(String subject) {
+		this.subject = subject;
+	}
+
+	/**
+	 * @return the message
+	 */
+	public String getMessage() {
+		return message;
+	}
+
+	/**
+	 * @param message the message to set
+	 */
+	public void setMessage(String message) {
+		this.message = message;
+	}
+
+	/**
+	 * @return the to
+	 */
+	public Set<String> getTo() {
+		return to;
+	}
+}

src/main/java/de/jottyfan/camporganizer/module/mail/MailRepository.java

@@ -30,6 +30,16 @@ public class MailRepository {
 	@Value("${spring.mail.username}")
 	private String username;
 
+	/**
+	 * Send an email with the message to the recipient. If email is blank, do
+	 * nothing
+	 *
+	 * @param bean the mail
+	 */
+	public void sendMail(MailBean bean) {
+		sendMail(bean.getTo(), bean.getSubject(), bean.getMessage());
+	}
+
 	/**
 	 * Send an email with the message to the recipient. If email is blank, do
 	 * nothing
@@ -38,7 +48,7 @@ public class MailRepository {
 	 * @param subject the subject
 	 * @param message the message
 	 */
-	public void sendMail(Set<String> to, String subject, String message) {
+	private void sendMail(Set<String> to, String subject, String message) {
 		if (to != null && to.size() > 0) {
 			if (username != null && !username.isBlank()) {
 				try {