Add configurable note quota to limit the number of notes per user.

api/actions/savenote.php

@@ -12,11 +12,21 @@
 
 $note = new Note("", "", getRequestUser()->getUID(), null);
 
+$newnote = true;
 if (!empty($VARS['id'])) {
     try {
         $note = Note::loadNote($VARS['id']);
+        $newnote = false;
     } catch (Exception $ex) {
         // It's a new note I guess
+        $newnote = true;
+    }
+}
+
+if ($newnote && $SETTINGS['note_limit'] !== false && !getRequestUser()->hasPermission($SETTINGS['unlimited_permission'])) {
+    $notecount = $database->count("notes", ['ownerid' => $_SESSION['uid']]);
+    if ($notecount >= $SETTINGS['note_limit']) {
+        sendJsonResp($Strings->get("You've reached your quota limit and can't make new notes.", false), "ERROR");
     }
 }
 

langs/en/quota.json

@@ -0,0 +1,8 @@
+{
+    "You've reached your quota limit and can't make new notes.": "You've reached your quota limit and can't make new notes.",
+    "Note quota reached": "Note quota reached",
+    "Note quota": "Note quota",
+    "Note quota: {x} of {y} used.": "Note quota: {x} of {y} used.",
+    "Note quota: Unlimited": "Note quota: Unlimited",
+    "unlimited": "unlimited"
+}

langs/messages.php

@@ -20,5 +20,9 @@ define("MESSAGES", [
     "note_deleted" => [
         "string" => "Note deleted",
         "type" => "success"
+    ],
+    "quota_reached" => [
+        "string" => "You've reached your quota limit and can't make new notes.",
+        "type" => "danger"
     ]
 ]);

pages/editnote.php

@@ -5,13 +5,16 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
+$newnote = true;
 $note = new Note("", "", $_SESSION['uid'], null);
 
 if (!empty($VARS['note'])) {
     try {
         $note = Note::loadNote($VARS['note']);
+        $newnote = false;
     } catch (Exception $ex) {
         // It's a new note I guess
+        $newnote = true;
     }
 }
 
@@ -21,6 +24,13 @@ if ($note->getOwnerID() != $_SESSION['uid']) {
     die();
 }
 
+if ($newnote && $SETTINGS['note_limit'] !== false && !(new User($_SESSION['uid']))->hasPermission($SETTINGS['unlimited_permission'])) {
+    $notecount = $database->count("notes", ['ownerid' => $_SESSION['uid']]);
+    if ($notecount >= $SETTINGS['note_limit']) {
+        header("Location: app.php?msg=quota_reached");
+    }
+}
+
 $note->saveNote();
 ?>
 

pages/home.php

@@ -10,6 +10,23 @@ $notes = [];
 foreach ($noteids as $n) {
     $notes[] = Note::loadNote($n);
 }
+
+// Check note quota
+$notequota = $SETTINGS['note_limit'];
+$notequotaset = $SETTINGS['note_limit'] !== false;
+$notequotareached = false;
+$usernotecount = 0;
+$userunlimited = false;
+if ($notequotaset) {
+    $usernotecount = $database->count("notes", ['ownerid' => $_SESSION['uid']]);
+    $usernotelimit = $SETTINGS['note_limit'];
+    if ((new User($_SESSION['uid']))->hasPermission($SETTINGS['unlimited_permission'])) {
+        $userunlimited = true;
+    }
+    if (!$userunlimited && $usernotecount >= $usernotelimit) {
+        $notequotareached = true;
+    }
+}
 ?>
 
 <style nonce="<?php echo $SECURE_NONCE; ?>">
@@ -70,7 +87,13 @@ foreach ($colors as $c) {
 </style>
 
 <div class="btn-group mb-4">
-    <a href="app.php?page=newnote" class="btn btn-success"><i class="fas fa-plus"></i> <?php $Strings->get("New note"); ?></a>
+    <?php if ($notequotareached) { ?>
+        <button type="button" class="btn btn-success" data-toggle="modal" data-target="#quotamodal">
+            <i class="fas fa-plus"></i> <?php $Strings->get("New note"); ?>
+        </button>
+    <?php } else { ?>
+        <a href="app.php?page=newnote" class="btn btn-success"><i class="fas fa-plus"></i> <?php $Strings->get("New note"); ?></a>
+    <?php } ?>
     <a href="app.php?page=home" class="btn btn-light"><i class="fas fa-sync-alt"></i> <?php $Strings->get("Refresh"); ?></a>
 </div>
 
@@ -185,6 +208,40 @@ foreach ($colors as $c) {
 
 </div>
 
+<?php if ($notequotaset) { ?>
+    <div class="quotamsg" data-toggle="modal" data-target="#quotamodal">
+        <?php
+        if ($userunlimited) {
+            $Strings->get("Note quota: Unlimited");
+        } else {
+            $Strings->build("Note quota: {x} of {y} used.", ["x" => $usernotecount, "y" => $notequota]);
+        }
+        ?>
+    </div>
+
+    <div class="modal fade" id="quotamodal" tabindex="-1" role="dialog" aria-labelledby="quotamodallabel" aria-hidden="true">
+        <div class="modal-dialog" role="document">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h5 class="modal-title" id="quotamodallabel"><i class="fas fa-tachometer-alt"></i> <?php $Strings->get("Note quota"); ?></h5>
+                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
+                        <span aria-hidden="true">&times;</span>
+                    </button>
+                </div>
+                <div class="modal-body">
+                    <?php
+                    $quotamsg = str_replace(["{{notecount}}", "{{notelimit}}"], [$usernotecount, ($userunlimited ? $Strings->get("unlimited", false) : $notequota)], $SETTINGS['quota_msg_content']);
+                    echo $quotamsg;
+                    ?>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-secondary" data-dismiss="modal"><?php $Strings->get("Close"); ?></button>
+                </div>
+            </div>
+        </div>
+    </div>
+<?php } ?>
+
 <div class="modal fade" tabindex="-1" role="dialog" id="colormodal">
     <div class="modal-dialog" role="document">
         <form class="modal-content" action="action.php" method="POST">

settings.template.php

@@ -42,6 +42,13 @@ $SETTINGS = [
     // List of required user permissions to access this app.
     "permissions" => [
     ],
+    // Set to a number to limit the number of notes each user can create.
+    "note_limit" => false,
+    // User permission required to bypass the note limit.
+    "unlimited_permission" => "",
+    // HTML to show when the quota is reached. "{{notecount}}" and "{{notelimit}}"
+    // will be replaced with the number of notes the user has and the note_limit.
+    "quota_msg_content" => "",
     // For supported values, see http://php.net/manual/en/timezones.php
     "timezone" => "America/Denver",
     // Language to use for localization. See langs folder to add a language.

static/css/home.css

@@ -59,4 +59,11 @@ li:not(.parsedown-task-list-close):not(.parsedown-task-list-open) {
 
 .parsedown-task-list-open {
     list-style-type: none;
+}
+
+.quotamsg {
+    text-align: center;
+    cursor: pointer;
+    margin-top: 100px;
+    margin-bottom: -100px;
 }