Note deletion feature added

package.json

@@ -23,15 +23,15 @@
   },
   "homepage": "https://github.com/chmllr/NoteHub",
   "dependencies": {
-    "body-parser": "^1.14.1",
-    "express": "^4.13.3",
-    "lru-cache": "^2.6.5",
+    "body-parser": "^1.15.0",
+    "express": "^4.13.4",
+    "lru-cache": "^4.0.0",
     "marked": "^0.3.5",
-    "md5": "^2.0.0",
-    "sequelize": "^3.8.0",
-    "sqlite3": "^3.1.0"
+    "md5": "^2.1.0",
+    "sequelize": "^3.19.3",
+    "sqlite3": "*"
   },
   "devDependencies": {
-    "nodemon": "^1.7.3"
+    "nodemon": "^1.9.1"
   }
 }

resources/edit.html

@@ -22,7 +22,8 @@
       <textarea id="note" name="note">%CONTENT%</textarea>
       <fieldset id="input-elems">
         <input class="ui-elem" id="plain-password" name="plain-password" placeholder="Password for editing" type="text">&nbsp;
-        <input class="button ui-elem" id="publish-button" type="submit" value="Publish">
+        <input class="button ui-elem" id="publish-button" name="button" type="submit" value="Publish">
+        <input class="button ui-elem" id="delete-button" name="button" type="submit" value="Delete">
         <span id="tableau">
           0 words
         </span>

resources/public/index.html

@@ -18,6 +18,7 @@
 	<article class="bottom-space">
 		<h2>Changelog</h2>
 		<ul>
+			<li><strong>2016-03</strong>: Note deletion feature added.</li>
 			<li><strong>2015-10</strong>: NoteHub rewritten in Node.js.</li>
 			<li><strong>2015-10</strong>: NoteHub API and note styling discontinued due to low adoption by the user base.</li>
 			<li><strong>2014-09</strong>: text size setting added</li>

resources/public/js/publishing.js

@@ -4,8 +4,7 @@ var $ = function(id) {
 var iosDetected = navigator.userAgent.match("(iPad|iPod|iPhone)");
 var timer = null;
 var timerDelay = iosDetected ? 800 : 400;
-var $note, $action, $preview, $plain_password, 
-  updatePreview, $tableau;
+var $note, $action, $preview, $plain_password, $tableau;
 var backendTimer;
 
 function md2html(input) {
@@ -25,7 +24,7 @@ function onLoad() {
   $preview = $("draft");
   $tableau = $("tableau");
   $plain_password = $("plain-password");
-  updatePreview = function() {
+  var updatePreview = function() {
     clearTimeout(timer);
     var content = $note.value;
     var delay = Math.min(timerDelay, timerDelay * (content.length / 400));
@@ -36,6 +35,7 @@ function onLoad() {
   };
   if ($action == "UPDATE") updatePreview();
   else {
+    $("delete-button").style.display = "none";
     $note.value = "";
     var draft = localStorage.getItem("draft");
     if (draft) {
@@ -44,14 +44,13 @@ function onLoad() {
     }
   }
   $note.onkeyup = updatePreview;
-  $("publish-button").onclick = function(e) {
+  $("delete-button").onclick = $("publish-button").onclick = function(e) {
     localStorage.removeItem("draft");
-    self.onbeforeunload = null;;
+    self.onbeforeunload = null;
     if ($plain_password.value != "") $("password").value = md5($plain_password.value);
     $plain_password.value = null;
-    $("signature").value = md5($("session").value + 
-      $note.value.replace(/[\n\r]/g, ""));
-  }
+    $("signature").value = md5($("session").value + $note.value.replace(/[\n\r]/g, ""));
+  };
   if (iosDetected) $note.className += " ui-border";
   else $note.focus();
   self.onbeforeunload = saveDraft;

server.js

@@ -61,9 +61,17 @@ app.post('/note', function (req, res) {
         storage.addNote(note, password).then(goToNote);
     else {
         CACHE.del(id);
+        if (body.button == "Delete") {
+            log("deleting note", id);
+            storage.deleteNote(id, password).then(
+                () => sendResponse(res, 200, "Note deleted"),
+                error => sendResponse(res, 403, error.message));
+        } else {
+            log("updating note", id);
             storage.updateNote(id, password, note).then(goToNote,
                 error => sendResponse(res, 403, error.message));
         }
+    }
 });
 
 app.get("/:year/:month/:day/:title", function(req, res) {
@@ -145,7 +153,7 @@ var sendResponse = (res, code, message) => {
 var notFound = res => sendResponse(res, 404, "Not found");
 
 var server = app.listen(process.env.PORT || 3000, function() {
-  log('NoteHub server listening on port %s', server.address().port);
+    log('NoteHub server listening on port', server.address().port);
 });
 
 setInterval(() => {

src/storage.js

@@ -45,11 +45,18 @@ module.exports.addNote = (note, password) => getFreeId().then(id => Note.create(
     password: password
 }));
 
-module.exports.updateNote = (id, password, text) => Note.findById(id).then(note => {
-  if (!note || note.password !== password) return new Promise((resolve, reject) => {
-    reject({ message: "Password is wrong" });
-  });
+var passwordCheck = (note, password, callback) => (!note || note.password !== password)
+    ? new Promise((resolve, reject) => reject({ message: "Password is wrong" }))
+    : callback();
+
+module.exports.updateNote = (id, password, text) =>
+    Note.findById(id).then(note =>
+        passwordCheck(note, password, () => {
             note.text = text;
             note.edited = new Date();
             return note.save();
-});
+        }));
+
+module.exports.deleteNote = (id, password) =>
+    Note.findById(id).then(note =>
+        passwordCheck(note, password, () => note.destroy()));