pre-filling subscription form for logged-in users

src/main/java/de/srsoftware/widerhall/data/ListMember.java

@@ -77,7 +77,7 @@ public class ListMember {
 
     public static String stateText(int state) {
         var words = new ArrayList<String>();
-        if ((state & STATE_OWNER) > 0) words.add("owener");
+        if ((state & STATE_OWNER) > 0) words.add("owner");
         if ((state & STATE_SUBSCRIBER) > 0) words.add("subscriber");
         return String.join(", ",words);
     }

src/main/java/de/srsoftware/widerhall/web/Web.java

@@ -313,7 +313,7 @@ public class Web extends HttpServlet {
         var email = req.getParameter(EMAIL);
         var pass = req.getParameter(PASSWORD);
         var list = req.getParameter(LIST);
-        var data = new HashMap<String,String>();
+        var data = new HashMap<String,Object>();
         data.put(NAME,name);
         data.put(EMAIL,email);
         data.put(LIST,list);
@@ -329,12 +329,12 @@ public class Web extends HttpServlet {
         if (pass != null && pass.isBlank()) pass = null;
 
         try {
-            User.create(email,name,pass);
+            data.put(USER,User.create(email,name,pass).safeMap());
         } catch (SQLException sqle) {
             var cause = getCausingException(sqle);
             int code = cause.getErrorCode();
             if (code == PRIMARY_KEY_CONSTRAINT) try {// user already exists
-                User.load(email,pass);
+                data.put(USER,User.load(email,pass).safeMap());
                 // success → subscribe
             } catch (InvalidKeyException | SQLException e) {
                 // invalid credentials
@@ -346,9 +346,13 @@ public class Web extends HttpServlet {
             ListMember.create(list,email,ListMember.STATE_SUBSCRIBER);
             data.put(NOTES,t("Successfully subscribed '{}' to '{}'.",email,list));
             return loadTemplate(INDEX,data,resp);
-        } catch (SQLException e) {
-            LOG.debug("List subscription failed: ",e);
-            data.put(ERROR,t("Subscription failed: {}",e.getMessage()));
+        } catch (SQLException sqle) {
+            LOG.debug("List subscription failed: ",sqle);
+            var cause = getCausingException(sqle);
+            int code = cause.getErrorCode();
+            if (code == PRIMARY_KEY_CONSTRAINT) {// user already exists
+                data.put(ERROR,t("You already are member of this list!",sqle.getMessage()));
+            } else data.put(ERROR,t("Subscription failed: {}",sqle.getMessage()));
             return loadTemplate(SUBSCRIBE,data,resp);
         }
     }

static/templates/js.st

@@ -81,14 +81,15 @@ function showListList(data){
     for (let i in data.lists){
         let list = data.lists[i];
         let row = $('<tr/>');
-        let subBtn = $('<button/>',{onclick:"subscribeTo('"+list.email.domain+"', '"+list.email.prefix+"');"}).text('subscribe');
-
         $('<td/>').text(list.name).appendTo(row);
         $('<td/>',{class:'right'}).text(list.email.prefix).appendTo(row);
         $('<td/>',{class:'right'}).text('@').appendTo(row);
         $('<td/>').text(list.email.domain).appendTo(row);
         $('<td/>').text(list.state).appendTo(row);
-        $('<td/>').html(subBtn).appendTo(row);
+        let td = $('<td/>',{class:'actions'});
+        $('<button/>',{onclick:"subscribeTo('"+list.email.domain+"', '"+list.email.prefix+"');"}).text('subscribe').appendTo(td);
+        $('<button/>',{onclick:"unsubscribeFrom('"+list.email.domain+"', '"+list.email.prefix+"');"}).text('unsubcribe').appendTo(td);
+        td.appendTo(row);
 
         row.appendTo('#listlist');
     }

static/templates/listlist.st

@@ -1,5 +1,5 @@
 <fieldset>
-    <legend>List of mailinglists</legend>
+    <legend>List of (public) mailinglists</legend>
     <table id="listlist">
         <tr>
             <th>List Name</th>

static/templates/subscribe.st

@@ -16,11 +16,11 @@
             <fieldset>
                 <legend>Suscribe to "«data.list»"</legend>
                 <label>
-                    <input type="text" name="name" value="«data.name»">
+                    <input type="text" name="name" value="«if(data.user)»«data.user.name»«else»«data.name»«endif»">
                     Name
                 </label>
                 <label>
-                    <input type="text" name="email" value="«data.email»">
+                    <input type="text" name="email" value="«if(data.user)»«data.user.email»«else»«data.email»«endif»">
                     Email
                 </label>
                 <label>