release 0.4.0-beta

README.md

@@ -17,7 +17,7 @@ Trilium Notes is a hierarchical note taking application. Picture tells a thousan
 ## Builds
 
 * If you want to install Trilium on server, follow [this page](https://github.com/zadam/trilium/wiki/Installation-as-webapp)
-* If you want to use Trilium on the desktop, download binary release for your platfor from [latest release](https://github.com/zadam/trilium/releases/latest), unzip the package and run ```trilium``` executable.
+* If you want to use Trilium on the desktop, download binary release for your platform from [latest release](https://github.com/zadam/trilium/releases/latest), unzip the package and run ```trilium``` executable.
 
 ## Supported platforms
 

app.js

@@ -73,6 +73,8 @@ require('./services/backup');
 // trigger consistency checks timer
 require('./services/consistency_checks');
 
+require('./plugins/reddit');
+
 module.exports = {
     app,
     sessionParser

bin/build.sh

@@ -1,16 +1,34 @@
 #!/usr/bin/env bash
 
-echo "Deleting dist"
+echo "Deleting existing builds"
 
 rm -r dist/*
 
-cp -r ../trilium-node-binaries/sqlite/* node_modules/sqlite3/lib/binding/
+echo "Rebuilding binaries for linux-ia32"
+./node_modules/.bin/electron-rebuild --arch=ia32
 
-cp -r ../trilium-node-binaries/scrypt/* node_modules/scrypt/bin/
+./node_modules/.bin/electron-packager . --out=dist --platform=linux --arch=ia32 --overwrite
 
-./node_modules/.bin/electron-rebuild
+./node_modules/.bin/electron-packager . --out=dist --platform=win32 --arch=x64 --overwrite
 
-./node_modules/.bin/electron-packager . --out=dist --platform=linux,win32 --overwrite
+# we build x64 as second so that we keep X64 binaries in node_modules for local development
+echo "Rebuilding binaries for linux-x64"
+./node_modules/.bin/electron-rebuild --arch=x64
 
-# can't copy this before the packaging because the same file name is used for both linux and windows build
-cp ../trilium-node-binaries/scrypt.node ./dist/trilium-win32-x64/resources/app/node_modules/scrypt/build/Release/
+./node_modules/.bin/electron-packager . --out=dist --platform=linux --arch=x64 --overwrite
+
+echo "Copying required windows binaries"
+
+WIN_RES_DIR=./dist/trilium-win32-x64/resources/app
+
+cp -r bin/deps/sqlite/* $WIN_RES_DIR/node_modules/sqlite3/lib/binding/
+cp bin/deps/image/cjpeg.exe $WIN_RES_DIR/node_modules/mozjpeg/vendor/
+cp bin/deps/image/pngquant.exe $WIN_RES_DIR/node_modules/pngquant-bin/vendor/
+cp bin/deps/image/gifsicle.exe $WIN_RES_DIR/node_modules/giflossy/vendor/
+cp bin/deps/scrypt.node $WIN_RES_DIR/node_modules/scrypt/build/Release/
+
+echo "Cleaning up unnecessary binaries from all builds"
+
+rm -r ./dist/trilium-linux-ia32/resources/app/bin/deps
+rm -r ./dist/trilium-linux-x64/resources/app/bin/deps
+rm -r ./dist/trilium-win32-x64/resources/app/bin/deps

bin/package.sh

@@ -4,8 +4,11 @@ VERSION=`jq -r ".version" package.json`
 
 cd dist
 
-echo "Packaging windows electron distribution..."
-7z a trilium-windows-${VERSION}.7z trilium-win32-x64
+echo "Packaging linux x64 electron distribution..."
+7z a trilium-linux-x64-${VERSION}.7z trilium-linux-x64
 
-echo "Packaging linux electron distribution..."
-7z a trilium-linux-${VERSION}.7z trilium-linux-x64
+echo "Packaging linux ia32 electron distribution..."
+7z a trilium-linux-ia32-${VERSION}.7z trilium-linux-ia32
+
+echo "Packaging windows x64 electron distribution..."
+7z a trilium-windows-x64-${VERSION}.7z trilium-win32-x64

bin/release.sh

@@ -44,8 +44,9 @@ bin/build.sh
 
 bin/package.sh
 
-LINUX_BUILD=trilium-linux-$VERSION.7z
-WINDOWS_BUILD=trilium-windows-$VERSION.7z
+LINUX_X64_BUILD=trilium-linux-x64-$VERSION.7z
+LINUX_IA32_BUILD=trilium-linux-ia32-$VERSION.7z
+WINDOWS_X64_BUILD=trilium-windows-x64-$VERSION.7z
 
 echo "Creating release in GitHub"
 
@@ -53,18 +54,25 @@ github-release release \
     --tag $TAG \
     --name "$TAG release"
 
-echo "Uploading linux build"
+echo "Uploading linux x64 build"
 
 github-release upload \
     --tag $TAG \
-    --name "$LINUX_BUILD" \
-    --file "dist/$LINUX_BUILD"
+    --name "$LINUX_X64_BUILD" \
+    --file "dist/$LINUX_X64_BUILD"
 
-echo "Uploading windows build"
+echo "Uploading linux ia32 build"
 
 github-release upload \
     --tag $TAG \
-    --name "$WINDOWS_BUILD" \
-    --file "dist/$WINDOWS_BUILD"
+    --name "$LINUX_IA32_BUILD" \
+    --file "dist/$LINUX_IA32_BUILD"
+
+echo "Uploading windows x64 build"
+
+github-release upload \
+    --tag $TAG \
+    --name "$WINDOWS_X64_BUILD" \
+    --file "dist/$WINDOWS_X64_BUILD"
 
 echo "Release finished!"

db/main_notes.sql

@@ -1,5 +1,5 @@
 INSERT INTO notes (note_id, note_title, note_text, is_protected, is_deleted, date_created, date_modified) VALUES ('root', 'root', 'root', 0, 0, '2017-12-22T11:41:07.000Z', '2017-12-22T11:41:07.000Z');
-INSERT INTO notes (note_id, note_title, note_text, is_protected, is_deleted, date_created, date_modified) VALUES ('1Heh2acXfPNt', 'Trilium Demo', '<p>Welcome to Trilium Notes!</p><p>&nbsp;</p><p>This is initial document provided by default Trilium to showcase some of its features and also give you some ideas how you might structure your notes. You can play with it, modify note content and tree structure as you wish.</p><p>&nbsp;</p><p>If you need any help, visit Trilium wesite: <a href="https://github.com/zadam/trilium">https://github.com/zadam/trilium</a></p><p>&nbsp;</p><p>Once you''re finished with experimenting and want to cleanup these pages, you can simply delete them all.</p>', 0, 0, '2017-12-23T00:46:39.304Z', '2017-12-23T04:08:45.445Z');
+INSERT INTO notes (note_id, note_title, note_text, is_protected, is_deleted, date_created, date_modified) VALUES ('1Heh2acXfPNt', 'Trilium Demo', '<figure class="image image-style-side"><img src="/api/images/ed64aET6i379/trilium-small.png"></figure><p><strong>Welcome to Trilium Notes!</strong></p><p>&nbsp;</p><p>This is initial document provided by default Trilium to showcase some of its features and also give you some ideas how you might structure your notes. You can play with it, modify note content and tree structure as you wish.</p><p>&nbsp;</p><p>If you need any help, visit Trilium website: <a href="https://github.com/zadam/trilium">https://github.com/zadam/trilium</a></p><h3>Cleanup</h3><p>Once you''re finished with experimenting and want to cleanup these pages, you can simply delete them all.</p><h3>Formatting</h3><p>Trilium supports classic formatting like <i>italic</i>, <strong>bold</strong>, <i><strong>bold and italic</strong></i>. Of course you can add links like this one pointing to <a href="http://www.google.com">google.com</a></p><h4>Lists</h4><p><strong>Ordered:</strong></p><ol><li>First Item</li><li>Second item<ol><li>First sub-item</li><li>Second sub-item</li></ol></li></ol><p>&nbsp;</p><p><strong>Unordered:</strong></p><ul><li>Item</li><li>Another item<ul><li>Sub-item<ul><li>Sub-sub-item</li></ul></li></ul></li></ul><h4>Block quotes</h4><blockquote><p>Whereof one cannot speak, thereof one must be silent”</p><p>– Ludwig Wittgenstein</p></blockquote><p>&nbsp;</p>', 0, 0, '2017-12-23T00:46:39.304Z', '2017-12-23T04:08:45.445Z');
 INSERT INTO notes (note_id, note_title, note_text, is_protected, is_deleted, date_created, date_modified) VALUES ('3RkyK9LI18dO', 'Journal', '<p>Expand note on the left pane to see content.</p>', 0, 0, '2017-12-23T01:20:04.181Z', '2017-12-23T18:07:55.377Z');
 INSERT INTO notes (note_id, note_title, note_text, is_protected, is_deleted, date_created, date_modified) VALUES ('L1Ox40M1aEyy', '2016', '<p>No content.</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p>', 0, 0, '2017-12-23T01:20:45.365Z', '2017-12-23T16:40:43.129Z');
 INSERT INTO notes (note_id, note_title, note_text, is_protected, is_deleted, date_created, date_modified) VALUES ('HJusZTbBU494', '2017', '<p>No content.</p>', 0, 0, '2017-12-23T01:20:50.709Z', '2017-12-23T16:41:03.119Z');

db/main_notes_image.sql

@@ -0,0 +1 @@
+INSERT INTO notes_image (note_image_id, note_id, image_id, is_deleted, date_modified, date_created) VALUES ('2EtgRRPfk4Fi', '1Heh2acXfPNt', 'ed64aET6i379', 0, '2018-01-08T04:41:30.663Z', '2018-01-08T04:41:30.663Z');

db/schema.sql

@@ -1,6 +1,7 @@
 CREATE TABLE IF NOT EXISTS "options" (
 	`opt_name`	TEXT NOT NULL PRIMARY KEY,
 	`opt_value`	TEXT,
+  `is_synced` INTEGER NOT NULL DEFAULT 0,
 	`date_modified` INT
 );
 CREATE TABLE IF NOT EXISTS "sync" (
@@ -67,9 +68,6 @@ CREATE INDEX `IDX_sync_sync_date` ON `sync` (
 CREATE INDEX `IDX_notes_is_deleted` ON `notes` (
     `is_deleted`
 );
-CREATE INDEX `IDX_notes_tree_note_tree_id` ON `notes_tree` (
-  `note_tree_id`
-);
 CREATE INDEX `IDX_notes_tree_note_id_parent_note_id` ON `notes_tree` (
   `note_id`,
   `parent_note_id`
@@ -86,3 +84,41 @@ CREATE INDEX `IDX_notes_history_note_date_modified_from` ON `notes_history` (
 CREATE INDEX `IDX_notes_history_note_date_modified_to` ON `notes_history` (
   `date_modified_to`
 );
+CREATE TABLE images
+(
+  image_id TEXT PRIMARY KEY NOT NULL,
+  format TEXT NOT NULL,
+  checksum TEXT NOT NULL,
+  name TEXT NOT NULL,
+  data BLOB,
+  is_deleted INT NOT NULL DEFAULT 0,
+  date_modified TEXT NOT NULL,
+  date_created TEXT NOT NULL
+);
+
+CREATE TABLE notes_image
+(
+  note_image_id TEXT PRIMARY KEY NOT NULL,
+  note_id TEXT NOT NULL,
+  image_id TEXT NOT NULL,
+  is_deleted INT NOT NULL DEFAULT 0,
+  date_modified TEXT NOT NULL,
+  date_created TEXT NOT NULL
+);
+
+CREATE INDEX notes_image_note_id_index ON notes_image (note_id);
+CREATE INDEX notes_image_image_id_index ON notes_image (image_id);
+CREATE INDEX notes_image_note_id_image_id_index ON notes_image (note_id, image_id);
+
+CREATE TABLE attributes
+(
+  attribute_id TEXT PRIMARY KEY NOT NULL,
+  note_id TEXT NOT NULL,
+  name TEXT NOT NULL,
+  value TEXT,
+  date_created TEXT NOT NULL,
+  date_modified TEXT NOT NULL
+);
+
+CREATE INDEX attributes_note_id_index ON attributes (note_id);
+CREATE UNIQUE INDEX attributes_note_id_name_index ON attributes (note_id, name);

index.js

@@ -2,6 +2,7 @@
 const electron = require('electron');
 const path = require('path');
 const config = require('./services/config');
+const url = require("url");
 
 const app = electron.app;
 
@@ -21,6 +22,7 @@ function createMainWindow() {
     const win = new electron.BrowserWindow({
         width: 1200,
         height: 900,
+        title: 'Trilium Notes',
         icon: path.join(__dirname, 'public/images/app-icons/png/256x256.png')
     });
 
@@ -37,6 +39,16 @@ function createMainWindow() {
         }
     });
 
+    // prevent drag & drop to navigate away from trilium
+    win.webContents.on('will-navigate', (ev, targetUrl) => {
+        const parsedUrl = url.parse(targetUrl);
+
+        // we still need to allow internal redirects from setup and migration pages
+        if (parsedUrl.hostname !== 'localhost' || (parsedUrl.path && parsedUrl.path !== '/')) {
+            ev.preventDefault();
+        }
+    });
+
     return win;
 }
 

migrations/0061__change_index_to_unique.sql

@@ -0,0 +1,6 @@
+DROP INDEX IDX_notes_tree_note_id_parent_note_id;
+
+CREATE UNIQUE INDEX `IDX_notes_tree_note_id_parent_note_id` ON `notes_tree` (
+  `note_id`,
+  `parent_note_id`
+);

migrations/0062__change_index_back_to_non_unique.sql

@@ -0,0 +1,9 @@
+DROP INDEX IDX_notes_tree_note_id_parent_note_id;
+
+CREATE INDEX `IDX_notes_tree_note_id_parent_note_id` ON `notes_tree` (
+  `note_id`,
+  `parent_note_id`
+);
+
+-- dropping this as it's just duplicate of primary key
+DROP INDEX IDX_notes_tree_note_tree_id;

migrations/0063__image_table.sql

@@ -0,0 +1,11 @@
+CREATE TABLE images
+(
+  image_id TEXT PRIMARY KEY NOT NULL,
+  format TEXT NOT NULL,
+  checksum TEXT NOT NULL,
+  name TEXT NOT NULL,
+  data BLOB,
+  is_deleted INT NOT NULL DEFAULT 0,
+  date_modified TEXT NOT NULL,
+  date_created TEXT NOT NULL
+);

migrations/0064__add_note_id_to_image_table.sql

@@ -0,0 +1,16 @@
+DROP TABLE images;
+
+CREATE TABLE images
+(
+  image_id TEXT PRIMARY KEY NOT NULL,
+  note_id TEXT NOT NULL,
+  format TEXT NOT NULL,
+  checksum TEXT NOT NULL,
+  name TEXT NOT NULL,
+  data BLOB,
+  is_deleted INT NOT NULL DEFAULT 0,
+  date_modified TEXT NOT NULL,
+  date_created TEXT NOT NULL
+);
+
+CREATE INDEX images_note_id_index ON images (note_id);

migrations/0065__notes_image.sql

@@ -0,0 +1,27 @@
+DROP TABLE images;
+
+CREATE TABLE images
+(
+  image_id TEXT PRIMARY KEY NOT NULL,
+  format TEXT NOT NULL,
+  checksum TEXT NOT NULL,
+  name TEXT NOT NULL,
+  data BLOB,
+  is_deleted INT NOT NULL DEFAULT 0,
+  date_modified TEXT NOT NULL,
+  date_created TEXT NOT NULL
+);
+
+CREATE TABLE notes_image
+(
+  note_image_id TEXT PRIMARY KEY NOT NULL,
+  note_id TEXT NOT NULL,
+  image_id TEXT NOT NULL,
+  is_deleted INT NOT NULL DEFAULT 0,
+  date_modified TEXT NOT NULL,
+  date_created TEXT NOT NULL
+);
+
+CREATE INDEX notes_image_note_id_index ON notes_image (note_id);
+CREATE INDEX notes_image_image_id_index ON notes_image (image_id);
+CREATE INDEX notes_image_note_id_image_id_index ON notes_image (note_id, image_id);

migrations/0066__create_attributes_table.sql

@@ -0,0 +1,12 @@
+CREATE TABLE attributes
+(
+  attribute_id TEXT PRIMARY KEY NOT NULL,
+  note_id TEXT NOT NULL,
+  name TEXT NOT NULL,
+  value TEXT,
+  date_created TEXT NOT NULL,
+  date_modified TEXT NOT NULL
+);
+
+CREATE INDEX attributes_note_id_index ON attributes (note_id);
+CREATE UNIQUE INDEX attributes_note_id_name_index ON attributes (note_id, name);

migrations/0067__add_is_synced_to_options.sql

@@ -0,0 +1,5 @@
+ALTER TABLE options ADD COLUMN is_synced INTEGER NOT NULL DEFAULT 0;
+
+UPDATE options SET is_synced = 1 WHERE opt_name IN ('username', 'password_verification_hash', 'password_verification_salt',
+                                                    'password_derived_key_salt', 'encrypted_data_key', 'encrypted_data_key_iv',
+                                                    'protected_session_timeout', 'history_snapshot_time_interval');

package.json

@@ -1,7 +1,12 @@
 {
   "name": "trilium",
   "description": "Trilium Notes",
-  "version": "0.0.11",
+  "version": "0.4.0-beta",
+  "license": "AGPL-3.0-only",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/zadam/trilium.git"
+  },
   "scripts": {
     "start": "node ./bin/www",
     "test-electron": "xo",
@@ -14,6 +19,8 @@
     "publish-forge": "electron-forge publish"
   },
   "dependencies": {
+    "async-mutex": "^0.1.3",
+    "axios": "^0.17.1",
     "body-parser": "~1.18.2",
     "cookie-parser": "~1.4.3",
     "debug": "~3.1.0",
@@ -23,20 +30,31 @@
     "electron-debug": "^1.0.0",
     "electron-in-page-search": "^1.2.4",
     "express": "~4.16.2",
+    "express-promise-wrap": "^0.2.2",
     "express-session": "^1.15.6",
     "fs-extra": "^4.0.2",
     "helmet": "^3.9.0",
     "html": "^1.0.0",
+    "image-type": "^3.0.0",
+    "imagemin": "^5.3.1",
+    "imagemin-giflossy": "^5.1.10",
+    "imagemin-mozjpeg": "^7.0.0",
+    "imagemin-pngquant": "^5.0.1",
     "ini": "^1.3.4",
+    "jimp": "^0.2.28",
+    "moment": "^2.20.1",
+    "multer": "^1.3.0",
     "rand-token": "^0.4.0",
     "request": "^2.83.0",
     "request-promise": "^4.2.2",
     "rimraf": "^2.6.2",
+    "sanitize-filename": "^1.6.1",
     "scrypt": "^6.0.3",
     "serve-favicon": "~2.4.5",
     "session-file-store": "^1.1.2",
     "simple-node-logger": "^0.93.30",
     "sqlite": "^2.9.0",
+    "unescape": "^1.0.1",
     "ws": "^3.3.2"
   },
   "devDependencies": {

plugins/reddit.js

@@ -0,0 +1,218 @@
+"use strict";
+
+const sql = require('../services/sql');
+const notes = require('../services/notes');
+const axios = require('axios');
+const log = require('../services/log');
+const utils = require('../services/utils');
+const unescape = require('unescape');
+const attributes = require('../services/attributes');
+const sync_mutex = require('../services/sync_mutex');
+const config = require('../services/config');
+
+const REDDIT_ROOT = 'reddit_root';
+
+async function createNote(parentNoteId, noteTitle, noteText) {
+    return (await notes.createNewNote(parentNoteId, {
+        note_title: noteTitle,
+        note_text: noteText,
+        target: 'into',
+        is_protected: false
+    })).noteId;
+}
+
+function redditId(kind, id) {
+    return kind + "_" + id;
+}
+
+async function getNoteStartingWith(parentNoteId, startsWith) {
+    return await sql.getFirstValue(`SELECT note_id FROM notes JOIN notes_tree USING(note_id) 
+                                    WHERE parent_note_id = ? AND note_title LIKE '${startsWith}%'
+                                    AND notes.is_deleted = 0 AND notes_tree.is_deleted = 0`, [parentNoteId]);
+}
+
+async function getYearNoteId(dateTimeStr, rootNoteId) {
+    const yearStr = dateTimeStr.substr(0, 4);
+
+    let yearNoteId = await attributes.getNoteIdWithAttribute('year_note', yearStr);
+
+    if (!yearNoteId) {
+        yearNoteId = await getNoteStartingWith(rootNoteId, yearStr);
+
+        if (!yearNoteId) {
+            yearNoteId = await createNote(rootNoteId, yearStr);
+        }
+
+        await attributes.createAttribute(yearNoteId, "year_note", yearStr);
+    }
+
+    return yearNoteId;
+}
+
+async function getMonthNoteId(dateTimeStr, rootNoteId) {
+    const monthStr = dateTimeStr.substr(0, 7);
+    const monthNumber = dateTimeStr.substr(5, 2);
+
+    let monthNoteId = await attributes.getNoteIdWithAttribute('month_note', monthStr);
+
+    if (!monthNoteId) {
+        const yearNoteId = await getYearNoteId(dateTimeStr, rootNoteId);
+
+        monthNoteId = await getNoteStartingWith(yearNoteId, monthNumber);
+
+        if (!monthNoteId) {
+            monthNoteId = await createNote(yearNoteId, monthNumber);
+        }
+
+        await attributes.createAttribute(monthNoteId, "month_note", monthStr);
+    }
+
+    return monthNoteId;
+}
+
+async function getDateNoteId(dateTimeStr, rootNoteId) {
+    const dateStr = dateTimeStr.substr(0, 10);
+    const dayNumber = dateTimeStr.substr(8, 2);
+
+    let dateNoteId = await attributes.getNoteIdWithAttribute('date_note', dateStr);
+
+    if (!dateNoteId) {
+        const monthNoteId = await getMonthNoteId(dateTimeStr, rootNoteId);
+
+        dateNoteId = await getNoteStartingWith(monthNoteId, dayNumber);
+
+        if (!dateNoteId) {
+            dateNoteId = await createNote(monthNoteId, dayNumber);
+        }
+
+        await attributes.createAttribute(dateNoteId, "date_note", dateStr);
+    }
+
+    return dateNoteId;
+}
+
+async function getDateNoteIdForReddit(dateTimeStr, rootNoteId) {
+    const dateStr = dateTimeStr.substr(0, 10);
+
+    let redditDateNoteId = await attributes.getNoteIdWithAttribute('reddit_date_note', dateStr);
+
+    if (!redditDateNoteId) {
+        const dateNoteId = await getDateNoteId(dateTimeStr, rootNoteId);
+
+        redditDateNoteId = await createNote(dateNoteId, "Reddit");
+
+        await attributes.createAttribute(redditDateNoteId, "reddit_date_note", dateStr);
+    }
+
+    return redditDateNoteId;
+}
+
+async function importComments(accountName, afterId = null) {
+    let rootNoteId = await sql.getFirstValue(`SELECT notes.note_id FROM notes JOIN attributes USING(note_id) 
+              WHERE attributes.name = '${REDDIT_ROOT}' AND notes.is_deleted = 0`);
+
+    if (!rootNoteId) {
+        rootNoteId = (await notes.createNewNote('root', {
+            note_title: 'Reddit',
+            target: 'into',
+            is_protected: false
+        })).noteId;
+
+        await attributes.createAttribute(rootNoteId, REDDIT_ROOT);
+    }
+
+    let url = `https://www.reddit.com/user/${accountName}.json`;
+
+    if (afterId) {
+        url += "?after=" + afterId;
+    }
+
+    const response = await axios.get(url);
+    const listing = response.data;
+
+    if (listing.kind !== 'Listing') {
+        log.info(`Reddit: Unknown object kind ${listing.kind}`);
+        return;
+    }
+
+    const children = listing.data.children;
+
+    let importedComments = 0;
+
+    for (const child of children) {
+        const comment = child.data;
+
+        let commentNoteId = await attributes.getNoteIdWithAttribute('reddit_id', redditId(child.kind, comment.id));
+
+        if (commentNoteId) {
+            continue;
+        }
+
+        const dateTimeStr = utils.dateStr(new Date(comment.created_utc * 1000));
+
+        const permaLink = 'https://reddit.com' + comment.permalink;
+
+        const noteText =
+`<p><a href="${permaLink}">${permaLink}</a></p>
+<p>author: <a href="https://reddit.com/u/${comment.author}">${comment.author}</a>, 
+subreddit: <a href="https://reddit.com/r/${comment.subreddit}">${comment.subreddit}</a>, 
+karma: ${comment.score}, created at ${dateTimeStr}</p><p></p>`
+            + unescape(comment.body_html);
+
+        let parentNoteId = await getDateNoteIdForReddit(dateTimeStr, rootNoteId);
+
+        commentNoteId = await createNote(parentNoteId, comment.link_title, noteText);
+
+        log.info("Reddit: Imported comment to note " + commentNoteId);
+        importedComments++;
+
+        await sql.doInTransaction(async () => {
+            await attributes.createAttribute(commentNoteId, "reddit_kind", child.kind);
+            await attributes.createAttribute(commentNoteId, "reddit_id", redditId(child.kind, comment.id));
+            await attributes.createAttribute(commentNoteId, "reddit_created_utc", comment.created_utc);
+        });
+    }
+
+    // if there have been no imported comments on this page, there shouldn't be any to import
+    // on the next page since those are older
+    if (listing.data.after && importedComments > 0) {
+        importedComments += await importComments(accountName, listing.data.after);
+    }
+
+    return importedComments;
+}
+
+let redditAccounts = [];
+
+async function runImport() {
+    // technically mutex shouldn't be necessary but we want to avoid doing potentially expensive import
+    // concurrently with sync
+    await sync_mutex.doExclusively(async () => {
+        let importedComments = 0;
+
+        for (const account of redditAccounts) {
+            importedComments += await importComments(account);
+        }
+
+        log.info(`Reddit: Imported ${importedComments} comments.`);
+    });
+}
+
+sql.dbReady.then(async () => {
+    if (!config['Reddit'] || config['Reddit']['enabled'] !== true) {
+        return;
+    }
+
+    const redditAccountsStr = config['Reddit']['accounts'];
+
+    if (!redditAccountsStr) {
+        log.info("Reddit: No reddit accounts defined in option 'reddit_accounts'");
+    }
+
+    redditAccounts = redditAccountsStr.split(",").map(s => s.trim());
+
+    const pollingIntervalInSeconds = config['Reddit']['pollingIntervalInSeconds'] || 3600;
+
+    setInterval(runImport, pollingIntervalInSeconds * 1000);
+    setTimeout(runImport, 1000);
+});

public/javascripts/cloning.js

@@ -0,0 +1,33 @@
+"use strict";
+
+const cloning = (function() {
+    async function cloneNoteTo(childNoteId, parentNoteId, prefix) {
+        const resp = await server.put('notes/' + childNoteId + '/clone-to/' + parentNoteId, {
+            prefix: prefix
+        });
+
+        if (!resp.success) {
+            alert(resp.message);
+            return;
+        }
+
+        await noteTree.reload();
+    }
+
+    // beware that first arg is noteId and second is noteTreeId!
+    async function cloneNoteAfter(noteId, afterNoteTreeId) {
+        const resp = await server.put('notes/' + noteId + '/clone-after/' + afterNoteTreeId);
+
+        if (!resp.success) {
+            alert(resp.message);
+            return;
+        }
+
+        await noteTree.reload();
+    }
+
+    return {
+        cloneNoteAfter,
+        cloneNoteTo
+    };
+})();

public/javascripts/context_menu.js

@@ -3,54 +3,72 @@
 const contextMenu = (function() {
     const treeEl = $("#tree");
 
-    let clipboardId = null;
+    let clipboardIds = [];
     let clipboardMode = null;
 
     function pasteAfter(node) {
         if (clipboardMode === 'cut') {
-            const subjectNode = treeUtils.getNodeByKey(clipboardId);
+            for (const nodeKey of clipboardIds) {
+                const subjectNode = treeUtils.getNodeByKey(nodeKey);
 
-            treeChanges.moveAfterNode(subjectNode, node);
+                treeChanges.moveAfterNode([subjectNode], node);
+            }
+
+            clipboardIds = [];
+            clipboardMode = null;
         }
         else if (clipboardMode === 'copy') {
-            treeChanges.cloneNoteAfter(clipboardId, node.data.note_tree_id);
+            for (const noteId of clipboardIds) {
+                cloning.cloneNoteAfter(noteId, node.data.note_tree_id);
+            }
+
+            // copy will keep clipboardIds and clipboardMode so it's possible to paste into multiple places
         }
-        else if (clipboardId === null) {
+        else if (clipboardIds.length === 0) {
             // just do nothing
         }
         else {
             throwError("Unrecognized clipboard mode=" + clipboardMode);
         }
-
-        clipboardId = null;
-        clipboardMode = null;
     }
 
     function pasteInto(node) {
         if (clipboardMode === 'cut') {
-            const subjectNode = treeUtils.getNodeByKey(clipboardId);
+            for (const nodeKey of clipboardIds) {
+                const subjectNode = treeUtils.getNodeByKey(nodeKey);
 
-            treeChanges.moveToNode(subjectNode, node);
+                treeChanges.moveToNode([subjectNode], node);
+            }
+
+            clipboardIds = [];
+            clipboardMode = null;
         }
         else if (clipboardMode === 'copy') {
-            treeChanges.cloneNoteTo(clipboardId, node.data.note_id);
+            for (const noteId of clipboardIds) {
+                cloning.cloneNoteTo(noteId, node.data.note_id);
+            }
+            // copy will keep clipboardIds and clipboardMode so it's possible to paste into multiple places
+        }
+        else if (clipboardIds.length === 0) {
+            // just do nothing
         }
         else {
             throwError("Unrecognized clipboard mode=" + mode);
         }
-
-        clipboardId = null;
-        clipboardMode = null;
     }
 
-    function copy(node) {
-        clipboardId = node.data.note_id;
+    function copy(nodes) {
+        clipboardIds = nodes.map(node => node.data.note_id);
         clipboardMode = 'copy';
+
+        showMessage("Note(s) have been copied into clipboard.");
     }
 
-    function cut(node) {
-        clipboardId = node.key;
+    function cut(nodes) {
+        clipboardIds = nodes.map(node => node.key);
         clipboardMode = 'cut';
+
+        showMessage("Note(s) have been cut into clipboard.");
     }
 
     const contextMenuSettings = {
@@ -71,13 +89,16 @@ const contextMenu = (function() {
             {title: "Paste into <kbd>Ctrl+V</kbd>", cmd: "pasteInto", uiIcon: "ui-icon-clipboard"},
             {title: "Paste after", cmd: "pasteAfter", uiIcon: "ui-icon-clipboard"},
             {title: "----"},
-            {title: "Collapse sub-tree <kbd>Alt+-</kbd>", cmd: "collapse-sub-tree", uiIcon: "ui-icon-minus"}
+            {title: "Collapse sub-tree <kbd>Alt+-</kbd>", cmd: "collapse-sub-tree", uiIcon: "ui-icon-minus"},
+            {title: "Force note sync", cmd: "force-note-sync", uiIcon: "ui-icon-refresh"},
+            {title: "Sort alphabetically <kbd>Alt+s</kbd>", cmd: "sort-alphabetically", uiIcon: " ui-icon-arrowthick-2-n-s"}
+
         ],
         beforeOpen: (event, ui) => {
             const node = $.ui.fancytree.getNode(ui.target);
             // Modify menu entries depending on node status
-            treeEl.contextmenu("enableEntry", "pasteAfter", clipboardId !== null);
-            treeEl.contextmenu("enableEntry", "pasteInto", clipboardId !== null);
+            treeEl.contextmenu("enableEntry", "pasteAfter", clipboardIds.length > 0);
+            treeEl.contextmenu("enableEntry", "pasteInto", clipboardIds.length > 0);
 
             // Activate node on right-click
             node.setActive();
@@ -108,10 +129,10 @@ const contextMenu = (function() {
                 protected_session.protectSubTree(node.data.note_id, false);
             }
             else if (ui.cmd === "copy") {
-                copy(node);
+                copy(noteTree.getSelectedNodes());
             }
             else if (ui.cmd === "cut") {
-                cut(node);
+                cut(noteTree.getSelectedNodes());
             }
             else if (ui.cmd === "pasteAfter") {
                 pasteAfter(node);
@@ -120,11 +141,17 @@ const contextMenu = (function() {
                 pasteInto(node);
             }
             else if (ui.cmd === "delete") {
-                treeChanges.deleteNode(node);
+                treeChanges.deleteNodes(noteTree.getSelectedNodes(true));
             }
             else if (ui.cmd === "collapse-sub-tree") {
                 noteTree.collapseTree(node);
             }
+            else if (ui.cmd === "force-note-sync") {
+                forceNoteSync(node.data.note_id);
+            }
+            else if (ui.cmd === "sort-alphabetically") {
+                noteTree.sortAlphabetically(node.data.note_id);
+            }
             else {
                 messaging.logError("Unknown command: " + ui.cmd);
             }

public/javascripts/dialogs/add_link.js

@@ -78,14 +78,14 @@ const addLink = (function() {
             else if (linkType === 'selected-to-current') {
                 const prefix = clonePrefixEl.val();
 
-                treeChanges.cloneNoteTo(noteId, noteEditor.getCurrentNoteId(), prefix);
+                cloning.cloneNoteTo(noteId, noteEditor.getCurrentNoteId(), prefix);
 
                 dialogEl.dialog("close");
             }
             else if (linkType === 'current-to-selected') {
                 const prefix = clonePrefixEl.val();
 
-                treeChanges.cloneNoteTo(noteEditor.getCurrentNoteId(), noteId, prefix);
+                cloning.cloneNoteTo(noteEditor.getCurrentNoteId(), noteId, prefix);
 
                 dialogEl.dialog("close");
             }

public/javascripts/dialogs/attributes.js

@@ -0,0 +1,62 @@
+"use strict";
+
+const attributesDialog = (function() {
+    const dialogEl = $("#attributes-dialog");
+    const attributesModel = new AttributesModel();
+
+    function AttributesModel() {
+        const self = this;
+
+        this.attributes = ko.observableArray();
+
+        this.loadAttributes = async function() {
+            const noteId = noteEditor.getCurrentNoteId();
+
+            const attributes = await server.get('notes/' + noteId + '/attributes');
+
+            this.attributes(attributes);
+        };
+
+        this.addNewRow = function() {
+            self.attributes.push({
+                attribute_id: '',
+                name: '',
+                value: ''
+            });
+        };
+
+        this.save = async function() {
+            const noteId = noteEditor.getCurrentNoteId();
+
+            const attributes = await server.put('notes/' + noteId + '/attributes', this.attributes());
+
+            self.attributes(attributes);
+
+            showMessage("Attributes have been saved.");
+        };
+    }
+
+    async function showDialog() {
+        glob.activeDialog = dialogEl;
+
+        dialogEl.dialog({
+            modal: true,
+            width: 800,
+            height: 700
+        });
+
+        attributesModel.loadAttributes();
+    }
+
+    $(document).bind('keydown', 'alt+a', e => {
+        showDialog();
+
+        e.preventDefault();
+    });
+
+    ko.applyBindings(attributesModel);
+
+    return {
+        showDialog
+    };
+})();

public/javascripts/dialogs/note_source.js

@@ -9,7 +9,8 @@ const noteSource = (function() {
 
         dialogEl.dialog({
             modal: true,
-            width: 800
+            width: 800,
+            height: 500
         });
 
         const noteText = noteEditor.getCurrentNote().detail.note_text;

public/javascripts/dialogs/recent_notes.js

@@ -86,13 +86,13 @@ const recentNotes = (function() {
     }
 
     async function addCurrentAsChild() {
-        await treeChanges.cloneNoteTo(noteEditor.getCurrentNoteId(), getSelectedNoteId());
+        await cloning.cloneNoteTo(noteEditor.getCurrentNoteId(), getSelectedNoteId());
 
         dialogEl.dialog("close");
     }
 
     async function addRecentAsChild() {
-        await treeChanges.cloneNoteTo(getSelectedNoteId(), noteEditor.getCurrentNoteId());
+        await cloning.cloneNoteTo(getSelectedNoteId(), noteEditor.getCurrentNoteId());
 
         dialogEl.dialog("close");
     }

public/javascripts/dialogs/settings.js

@@ -157,6 +157,7 @@ settings.addModule((async function () {
     const fillSyncRowsButton = $("#fill-sync-rows-button");
     const anonymizeButton = $("#anonymize-button");
     const cleanupSoftDeletedButton = $("#cleanup-soft-deleted-items-button");
+    const cleanupUnusedImagesButton = $("#cleanup-unused-images-button");
     const vacuumDatabaseButton = $("#vacuum-database-button");
 
     forceFullSyncButton.click(async () => {
@@ -186,6 +187,14 @@ settings.addModule((async function () {
         }
     });
 
+    cleanupUnusedImagesButton.click(async () => {
+        if (confirm("Do you really want to clean up unused images?")) {
+            await server.post('cleanup/cleanup-unused-images');
+
+            showMessage("Unused images have been cleaned up");
+        }
+    });
+
     vacuumDatabaseButton.click(async () => {
         await server.post('cleanup/vacuum-database');
 

public/javascripts/drag_and_drop.js

@@ -46,14 +46,19 @@ const dragAndDropSetup = {
         // This function MUST be defined to enable dropping of items on the tree.
         // data.hitMode is 'before', 'after', or 'over'.
 
+        const nodeToMove = data.otherNode;
+        nodeToMove.setSelected(true);
+
+        const selectedNodes = noteTree.getSelectedNodes();
+
         if (data.hitMode === "before") {
-            treeChanges.moveBeforeNode(data.otherNode, node);
+            treeChanges.moveBeforeNode(selectedNodes, node);
         }
         else if (data.hitMode === "after") {
-            treeChanges.moveAfterNode(data.otherNode, node);
+            treeChanges.moveAfterNode(selectedNodes, node);
         }
         else if (data.hitMode === "over") {
-            treeChanges.moveToNode(data.otherNode, node);
+            treeChanges.moveToNode(selectedNodes, node);
         }
         else {
             throw new Exception("Unknown hitMode=" + data.hitMode);

public/javascripts/init.js

@@ -6,10 +6,7 @@ jQuery.hotkeys.options.filterContentEditable = false;
 jQuery.hotkeys.options.filterTextInputs = false;
 
 $(document).bind('keydown', 'alt+m', e => {
-    const toggle = $(".hide-toggle");
-    const hidden = toggle.css('visibility') === 'hidden';
-
-    toggle.css('visibility', hidden ? 'visible' : 'hidden');
+    $(".hide-toggle").toggleClass("suppressed");
 
     e.preventDefault();
 });
@@ -49,7 +46,7 @@ $(document).bind('keydown', 'ctrl+f', () => {
         const searchInPage = require('electron-in-page-search').default;
         const remote = require('electron').remote;
 
-        const inPageSearch = searchInPage(remote.getCurrentWebContents(), { openDevToolsOfSearchWindow: true });
+        const inPageSearch = searchInPage(remote.getCurrentWebContents());
 
         inPageSearch.openSearchWindow();
 
@@ -57,6 +54,44 @@ $(document).bind('keydown', 'ctrl+f', () => {
     }
 });
 
+$(document).bind('keydown', "ctrl+shift+left", () => {
+    const node = noteTree.getCurrentNode();
+    node.navigate($.ui.keyCode.LEFT, true);
+
+    $("#note-detail").focus();
+
+    return false;
+});
+
+$(document).bind('keydown', "ctrl+shift+right", () => {
+    const node = noteTree.getCurrentNode();
+    node.navigate($.ui.keyCode.RIGHT, true);
+
+    $("#note-detail").focus();
+
+    return false;
+});
+
+$(document).bind('keydown', "ctrl+shift+up", () => {
+    const node = noteTree.getCurrentNode();
+    node.navigate($.ui.keyCode.UP, true);
+
+    $("#note-detail").focus();
+
+    return false;
+});
+
+$(document).bind('keydown', "ctrl+shift+down", () => {
+    const node = noteTree.getCurrentNode();
+    node.navigate($.ui.keyCode.DOWN, true);
+
+    $("#note-detail").focus();
+
+    return false;
+});
+
+$("#note-title").bind('keydown', 'return', () => $("#note-detail").focus());
+
 $(window).on('beforeunload', () => {
     // this makes sure that when user e.g. reloads the page or navigates away from the page, the note's content is saved
     // this sends the request asynchronously and doesn't wait for result
@@ -122,27 +157,6 @@ $(document).tooltip({
     }
 });
 
-let appShown = false;
-
-function showAppIfHidden() {
-    if (!appShown) {
-        appShown = true;
-
-        $("#container").show();
-
-        // Get a reference to the loader's div
-        const loaderDiv = document.getElementById("loader-wrapper");
-        // When the transition ends remove loader's div from display
-        // so that we can access the map with gestures or clicks
-        loaderDiv.addEventListener("transitionend", function(){
-            loaderDiv.style.display = "none";
-        }, true);
-
-        // Kick off the CSS transition
-        loaderDiv.style.opacity = 0.0;
-    }
-}
-
 window.onerror = function (msg, url, lineNo, columnNo, error) {
     const string = msg.toLowerCase();
 
@@ -164,4 +178,6 @@ window.onerror = function (msg, url, lineNo, columnNo, error) {
     messaging.logError(message);
 
     return false;
-};
+};
+
+$("#logout-button").toggle(!isElectron());

public/javascripts/link.js

@@ -42,20 +42,24 @@ const link = (function() {
         e.preventDefault();
 
         const linkEl = $(e.target);
-        const address = linkEl.attr("note-path") ? linkEl.attr("note-path") : linkEl.attr('href');
+        let notePath = linkEl.attr("note-path");
 
-        if (!address) {
-            return;
+        if (!notePath) {
+            const address = linkEl.attr("note-path") ? linkEl.attr("note-path") : linkEl.attr('href');
+
+            if (!address) {
+                return;
+            }
+
+            if (address.startsWith('http')) {
+                window.open(address, '_blank');
+
+                return;
+            }
+
+            notePath = getNotePathFromLink(address);
         }
 
-        if (address.startsWith('http')) {
-            window.open(address, '_blank');
-
-            return;
-        }
-
-        const notePath = getNotePathFromLink(address);
-
         noteTree.activateNode(notePath);
 
         // this is quite ugly hack, but it seems like we can't close the tooltip otherwise

public/javascripts/messaging.js

@@ -29,7 +29,9 @@ const messaging = (function() {
 
             const syncData = message.data.filter(sync => sync.source_id !== glob.sourceId);
 
-            if (syncData.some(sync => sync.entity_name === 'notes_tree')) {
+            if (syncData.some(sync => sync.entity_name === 'notes_tree')
+                || syncData.some(sync => sync.entity_name === 'notes')) {
+
                 console.log(now(), "Reloading tree because of background changes");
 
                 noteTree.reload();
@@ -47,6 +49,9 @@ const messaging = (function() {
                 recentNotes.reload();
             }
 
+            // we don't detect image changes here since images themselves are immutable and references should be
+            // updated in note detail as well
+
             changesToPushCountEl.html(message.changesToPushCount);
         }
         else if (message.type === 'sync-hash-check-failed') {

public/javascripts/note_editor.js

@@ -121,14 +121,16 @@ const noteEditor = (function() {
 
         noteTitleEl.val(currentNote.detail.note_title);
 
-        editor.setData(currentNote.detail.note_text);
+        // temporary workaround for https://github.com/ckeditor/ckeditor5-enter/issues/49
+        editor.setData(currentNote.detail.note_text ? currentNote.detail.note_text : "<p></p>");
 
         noteChangeDisabled = false;
 
         setNoteBackgroundIfProtected(currentNote);
         noteTree.setNoteTreeBackgroundBasedOnProtectedStatus(noteId);
 
-        showAppIfHidden();
+        // after loading new note make sure editor is scrolled to the top
+        noteDetailWrapperEl.scrollTop(0);
     }
 
     async function loadNote(noteId) {

public/javascripts/note_tree.js

@@ -4,6 +4,7 @@ const noteTree = (function() {
     const treeEl = $("#tree");
     const parentListEl = $("#parent-list");
     const parentListListEl = $("#parent-list-list");
+    const noteDetailEl = $("#note-detail");
 
     let startNotePath = null;
     let notesTreeMap = {};
@@ -59,23 +60,6 @@ const noteTree = (function() {
         return treeUtils.getNotePath(node);
     }
 
-    function getCurrentNoteId() {
-        const node = getCurrentNode();
-
-        return node ? node.data.note_id : null;
-    }
-
-    function getCurrentClones() {
-        const noteId = getCurrentNoteId();
-
-        if (noteId) {
-            return getNodesByNoteId(noteId);
-        }
-        else {
-            return [];
-        }
-    }
-
     function getNodesByNoteTreeId(noteTreeId) {
         assertArguments(noteTreeId);
 
@@ -185,13 +169,15 @@ const noteTree = (function() {
             const noteTreeId = getNoteTreeId(parentNoteId, noteId);
             const noteTree = notesTreeMap[noteTreeId];
 
+            const title = (noteTree.prefix ? (noteTree.prefix + " - ") : "") + noteIdToTitle[noteTree.note_id];
+
             const node = {
                 note_id: noteTree.note_id,
                 parent_note_id: noteTree.parent_note_id,
                 note_tree_id: noteTree.note_tree_id,
                 is_protected: noteTree.is_protected,
                 prefix: noteTree.prefix,
-                title: (noteTree.prefix ? (noteTree.prefix + " - ") : "") + noteIdToTitle[noteTree.note_id],
+                title: escapeHtml(title),
                 extraClasses: getExtraClasses(noteTree),
                 refKey: noteTree.note_id,
                 expanded: noteTree.is_expanded
@@ -223,8 +209,6 @@ const noteTree = (function() {
 
         let parentNoteId = 'root';
 
-        //console.log(now(), "Run path: ", runPath);
-
         for (const childNoteId of runPath) {
             const node = getNodesByNoteId(childNoteId).find(node => node.data.parent_note_id === parentNoteId);
 
@@ -237,6 +221,8 @@ const noteTree = (function() {
 
             parentNoteId = childNoteId;
         }
+
+        clearSelectedNodes();
     }
 
     /**
@@ -382,7 +368,7 @@ const noteTree = (function() {
 
         const expandedNum = isExpanded ? 1 : 0;
 
-        await server.put('notes/' + noteTreeId + '/expanded/' + expandedNum);
+        await server.put('tree/' + noteTreeId + '/expanded/' + expandedNum);
     }
 
     function setCurrentNotePathToHash(node) {
@@ -396,35 +382,85 @@ const noteTree = (function() {
         recentNotes.addRecentNote(currentNoteTreeId, currentNotePath);
     }
 
+    function getSelectedNodes(stopOnParents = false) {
+        return getTree().getSelectedNodes(stopOnParents);
+    }
+
+    function clearSelectedNodes() {
+        for (const selectedNode of getSelectedNodes()) {
+            selectedNode.setSelected(false);
+        }
+
+        const currentNode = getCurrentNode();
+
+        if (currentNode) {
+            currentNode.setSelected(true);
+        }
+    }
+
     function initFancyTree(noteTree) {
         assertArguments(noteTree);
 
         const keybindings = {
             "del": node => {
-                treeChanges.deleteNode(node);
+                treeChanges.deleteNodes(getSelectedNodes(true));
             },
-            "shift+up": node => {
+            "ctrl+up": node => {
                 const beforeNode = node.getPrevSibling();
 
                 if (beforeNode !== null) {
-                    treeChanges.moveBeforeNode(node, beforeNode);
+                    treeChanges.moveBeforeNode([node], beforeNode);
                 }
+
+                return false;
             },
-            "shift+down": node => {
+            "ctrl+down": node => {
                 let afterNode = node.getNextSibling();
                 if (afterNode !== null) {
-                    treeChanges.moveAfterNode(node, afterNode);
+                    treeChanges.moveAfterNode([node], afterNode);
                 }
+
+                return false;
             },
-            "shift+left": node => {
+            "ctrl+left": node => {
                 treeChanges.moveNodeUpInHierarchy(node);
+
+                return false;
             },
-            "shift+right": node => {
+            "ctrl+right": node => {
                 let toNode = node.getPrevSibling();
 
                 if (toNode !== null) {
-                    treeChanges.moveToNode(node, toNode);
+                    treeChanges.moveToNode([node], toNode);
                 }
+
+                return false;
+            },
+            "shift+up": node => {
+                node.navigate($.ui.keyCode.UP, true).then(() => {
+                    const currentNode = getCurrentNode();
+
+                    if (currentNode.isSelected()) {
+                        node.setSelected(false);
+                    }
+
+                    currentNode.setSelected(true);
+                });
+
+                return false;
+            },
+            "shift+down": node => {
+                node.navigate($.ui.keyCode.DOWN, true).then(() => {
+                    const currentNode = getCurrentNode();
+
+                    if (currentNode.isSelected()) {
+                        node.setSelected(false);
+                    }
+
+                    currentNode.setSelected(true);
+                });
+
+                return false;
             },
             "f2": node => {
                 editTreePrefix.showDialog(node);
@@ -432,26 +468,61 @@ const noteTree = (function() {
             "alt+-": node => {
                 collapseTree(node);
             },
+            "alt+s": node => {
+                sortAlphabetically(node.data.note_id);
+
+                return false;
+            },
+            "ctrl+a": node => {
+                for (const child of node.getParent().getChildren()) {
+                    child.setSelected(true);
+                }
+
+                return false;
+            },
+            "ctrl+c": () => {
+                contextMenu.copy(getSelectedNodes());
+
+                return false;
+            },
+            "ctrl+x": () => {
+                contextMenu.cut(getSelectedNodes());
+
+                return false;
+            },
+            "ctrl+v": node => {
+                contextMenu.pasteInto(node);
+
+                return false;
+            },
+            "return": node => {
+                noteDetailEl.focus();
+            },
+            "backspace": node => {
+                if (!isTopLevelNode(node)) {
+                    node.getParent().setActive().then(() => clearSelectedNodes());
+                }
+            },
             // code below shouldn't be necessary normally, however there's some problem with interaction with context menu plugin
             // after opening context menu, standard shortcuts don't work, but they are detected here
             // so we essentially takeover the standard handling with our implementation.
             "left": node => {
-                node.navigate($.ui.keyCode.LEFT, true);
+                node.navigate($.ui.keyCode.LEFT, true).then(() => clearSelectedNodes());
 
                 return false;
             },
             "right": node => {
-                node.navigate($.ui.keyCode.RIGHT, true);
+                node.navigate($.ui.keyCode.RIGHT, true).then(() => clearSelectedNodes());
 
                 return false;
             },
             "up": node => {
-                node.navigate($.ui.keyCode.UP, true);
+                node.navigate($.ui.keyCode.UP, true).then(() => clearSelectedNodes());
 
                 return false;
             },
             "down": node => {
-                node.navigate($.ui.keyCode.DOWN, true);
+                node.navigate($.ui.keyCode.DOWN, true).then(() => clearSelectedNodes());
 
                 return false;
             }
@@ -463,6 +534,24 @@ const noteTree = (function() {
             extensions: ["hotkeys", "filter", "dnd", "clones"],
             source: noteTree,
             scrollParent: $("#tree"),
+            click: (event, data) => {
+                const targetType = data.targetType;
+                const node = data.node;
+
+                if (targetType === 'title' || targetType === 'icon') {
+                    if (!event.ctrlKey) {
+                        node.setActive();
+                        node.setSelected(true);
+
+                        clearSelectedNodes();
+                    }
+                    else {
+                        node.setSelected(!node.isSelected());
+                    }
+
+                    return false;
+                }
+            },
             activate: (event, data) => {
                 const node = data.node.data;
 
@@ -493,9 +582,6 @@ const noteTree = (function() {
                     // so waiting a second helps
                     setTimeout(scrollToCurrentNote, 1000);
                 }
-                else {
-                    showAppIfHidden();
-                }
             },
             hotkeys: {
                 keydown: keybindings
@@ -513,57 +599,6 @@ const noteTree = (function() {
                 mode: "hide"       // Grayout unmatched nodes (pass "hide" to remove unmatched node instead)
             },
             dnd: dragAndDropSetup,
-            keydown: (event, data) => {
-                const node = data.node;
-                // Eat keyboard events, when a menu is open
-                if ($(".contextMenu:visible").length > 0)
-                    return false;
-
-                switch (event.which) {
-                    // Open context menu on [Space] key (simulate right click)
-                    case 32: // [Space]
-                        $(node.span).trigger("mousedown", {
-                            preventDefault: true,
-                            button: 2
-                        })
-                            .trigger("mouseup", {
-                                preventDefault: true,
-                                pageX: node.span.offsetLeft,
-                                pageY: node.span.offsetTop,
-                                button: 2
-                            });
-                        return false;
-
-                    // Handle Ctrl+C, +X and +V
-                    case 67:
-                        if (event.ctrlKey) { // Ctrl+C
-                            contextMenu.copy(node);
-
-                            showMessage("Note copied into clipboard.");
-
-                            return false;
-                        }
-                        break;
-                    case 88:
-                        if (event.ctrlKey) { // Ctrl+X
-                            contextMenu.cut(node);
-
-                            showMessage("Note cut into clipboard.");
-
-                            return false;
-                        }
-                        break;
-                    case 86:
-                        if (event.ctrlKey) { // Ctrl+V
-                            contextMenu.pasteInto(node);
-
-                            showMessage("Note pasted from clipboard into current note.");
-
-                            return false;
-                        }
-                        break;
-                }
-            },
             lazyLoad: function(event, data){
                 const node = data.node.data;
 
@@ -739,6 +774,12 @@ const noteTree = (function() {
         showMessage("Created!");
     }
 
+    async function sortAlphabetically(noteId) {
+        await server.put('notes/' + noteId + '/sort');
+
+        await reload();
+    }
+
     $(document).bind('keydown', 'ctrl+o', e => {
         console.log("pressed O");
 
@@ -762,7 +803,7 @@ const noteTree = (function() {
     $(document).bind('keydown', 'ctrl+del', e => {
         const node = getCurrentNode();
 
-        treeChanges.deleteNode(node);
+        treeChanges.deleteNodes([node]);
 
         e.preventDefault();
     });
@@ -772,7 +813,11 @@ const noteTree = (function() {
     $(window).bind('hashchange', function() {
         const notePath = getNotePathFromAddress();
 
-        activateNode(notePath);
+        if (getCurrentNotePath() !== notePath) {
+            console.log("Switching to " + notePath + " because of hash change");
+
+            activateNode(notePath);
+        }
     });
 
     if (isElectron()) {
@@ -807,6 +852,8 @@ const noteTree = (function() {
         setPrefix,
         getNotePathTitle,
         removeParentChildRelation,
-        setParentChildRelation
+        setParentChildRelation,
+        getSelectedNodes,
+        sortAlphabetically
     };
 })();

public/javascripts/protected_session.js

@@ -22,9 +22,6 @@ const protected_session = (function() {
         const dfd = $.Deferred();
 
         if (requireProtectedSession && !isProtectedSessionAvailable()) {
-            // if this is entry point then we need to show the app even before the note is loaded
-            showAppIfHidden();
-
             protectedSessionDeferred = dfd;
 
             dialogEl.dialog({
@@ -145,7 +142,7 @@ const protected_session = (function() {
     async function protectSubTree(noteId, protect) {
         await ensureProtectedSession(true, true);
 
-        await server.put('tree/' + noteId + "/protect-sub-tree/" + (protect ? 1 : 0));
+        await server.put('notes/' + noteId + "/protect-sub-tree/" + (protect ? 1 : 0));
 
         showMessage("Request to un/protect sub tree has finished successfully");
 

public/javascripts/search_tree.js

@@ -48,7 +48,7 @@ const searchTree = (function() {
         }
     }).focus();
 
-    $(document).bind('keydown', 'alt+s', e => {
+    $(document).bind('keydown', 'ctrl+s', e => {
         toggleSearch();
 
         e.preventDefault();

public/javascripts/server.js

@@ -91,6 +91,7 @@ const server = (function() {
         get,
         post,
         put,
-        remove
+        remove,
+        getHeaders
     }
 })();

public/javascripts/sync.js

@@ -13,4 +13,10 @@ async function syncNow() {
 
         showError("Sync failed: " + result.message);
     }
+}
+
+async function forceNoteSync(noteId) {
+    const result = await server.post('sync/force-note-sync/' + noteId);
+
+    showMessage("Note added to sync queue.");
 }

public/javascripts/tree_changes.js

@@ -1,80 +1,79 @@
 "use strict";
 
 const treeChanges = (function() {
-    async function moveBeforeNode(node, beforeNode) {
-        await server.put('notes/' + node.data.note_tree_id + '/move-before/' + beforeNode.data.note_tree_id);
+    async function moveBeforeNode(nodesToMove, beforeNode) {
+        for (const nodeToMove of nodesToMove) {
+            const resp = await server.put('tree/' + nodeToMove.data.note_tree_id + '/move-before/' + beforeNode.data.note_tree_id);
 
-        changeNode(node, node => node.moveTo(beforeNode, 'before'));
+            if (!resp.success) {
+                alert(resp.message);
+                return;
+            }
+
+            changeNode(nodeToMove, node => node.moveTo(beforeNode, 'before'));
+        }
     }
 
-    async function moveAfterNode(node, afterNode) {
-        await server.put('notes/' + node.data.note_tree_id + '/move-after/' + afterNode.data.note_tree_id);
+    async function moveAfterNode(nodesToMove, afterNode) {
+        for (const nodeToMove of nodesToMove) {
+            const resp = await server.put('tree/' + nodeToMove.data.note_tree_id + '/move-after/' + afterNode.data.note_tree_id);
 
-        changeNode(node, node => node.moveTo(afterNode, 'after'));
+            if (!resp.success) {
+                alert(resp.message);
+                return;
+            }
+
+            changeNode(nodeToMove, node => node.moveTo(afterNode, 'after'));
+        }
     }
 
-    // beware that first arg is noteId and second is noteTreeId!
-    async function cloneNoteAfter(noteId, afterNoteTreeId) {
-        const resp = await server.put('notes/' + noteId + '/clone-after/' + afterNoteTreeId);
+    async function moveToNode(nodesToMove, toNode) {
+        for (const nodeToMove of nodesToMove) {
+            const resp = await server.put('tree/' + nodeToMove.data.note_tree_id + '/move-to/' + toNode.data.note_id);
 
-        if (!resp.success) {
-            alert(resp.message);
+            if (!resp.success) {
+                alert(resp.message);
+                return;
+            }
+
+            changeNode(nodeToMove, node => {
+                // first expand which will force lazy load and only then move the node
+                // if this is not expanded before moving, then lazy load won't happen because it already contains node
+                // this doesn't work if this isn't a folder yet, that's why we expand second time below
+                toNode.setExpanded(true);
+
+                node.moveTo(toNode);
+
+                toNode.folder = true;
+                toNode.renderTitle();
+
+                // this expands the note in case it become the folder only after the move
+                toNode.setExpanded(true);
+            });
+        }
+    }
+
+    async function deleteNodes(nodes) {
+        if (nodes.length === 0 || !confirm('Are you sure you want to delete select note(s) and all the sub-notes?')) {
             return;
         }
 
-        await noteTree.reload();
-    }
-
-    async function moveToNode(node, toNode) {
-        await server.put('notes/' + node.data.note_tree_id + '/move-to/' + toNode.data.note_id);
-
-        changeNode(node, node => {
-            node.moveTo(toNode);
-
-            toNode.setExpanded(true);
-
-            toNode.folder = true;
-            toNode.renderTitle();
-        });
-    }
-
-    async function cloneNoteTo(childNoteId, parentNoteId, prefix) {
-        const resp = await server.put('notes/' + childNoteId + '/clone-to/' + parentNoteId, {
-            prefix: prefix
-        });
-
-        if (!resp.success) {
-            alert(resp.message);
-            return;
+        for (const node of nodes) {
+            await server.remove('tree/' + node.data.note_tree_id);
         }
 
-        await noteTree.reload();
-    }
-
-    async function deleteNode(node) {
-        if (!confirm('Are you sure you want to delete note "' + node.title + '" and all its sub-notes?')) {
-            return;
-        }
-
-        await server.remove('notes/' + node.data.note_tree_id);
-
-        if (!isTopLevelNode(node) && node.getParent().getChildren().length <= 1) {
-            node.getParent().folder = false;
-            node.getParent().renderTitle();
-        }
-
-        let next = node.getNextSibling();
+        // following code assumes that nodes contain only top-most selected nodes - getSelectedNodes has been
+        // called with stopOnParent=true
+        let next = nodes[nodes.length - 1].getNextSibling();
 
         if (!next) {
-            next = node.getPrevSibling();
+            next = nodes[0].getPrevSibling();
         }
 
-        if (!next && !isTopLevelNode(node)) {
-            next = node.getParent();
+        if (!next && !isTopLevelNode(nodes[0])) {
+            next = nodes[0].getParent();
         }
 
-        node.remove();
-
         if (next) {
             // activate next element after this one is deleted so we don't lose focus
             next.setActive();
@@ -84,7 +83,7 @@ const treeChanges = (function() {
 
         noteTree.reload();
 
-        showMessage("Note has been deleted.");
+        showMessage("Note(s) has been deleted.");
     }
 
     async function moveNodeUpInHierarchy(node) {
@@ -92,7 +91,12 @@ const treeChanges = (function() {
             return;
         }
 
-        await server.put('notes/' + node.data.note_tree_id + '/move-after/' + node.getParent().data.note_tree_id);
+        const resp = await server.put('tree/' + node.data.note_tree_id + '/move-after/' + node.getParent().data.note_tree_id);
+
+        if (!resp.success) {
+            alert(resp.message);
+            return;
+        }
 
         if (!isTopLevelNode(node) && node.getParent().getChildren().length <= 1) {
             node.getParent().folder = false;
@@ -120,9 +124,7 @@ const treeChanges = (function() {
         moveBeforeNode,
         moveAfterNode,
         moveToNode,
-        deleteNode,
-        moveNodeUpInHierarchy,
-        cloneNoteAfter,
-        cloneNoteTo
+        deleteNodes,
+        moveNodeUpInHierarchy
     };
 })();

public/javascripts/tree_utils.js

@@ -37,7 +37,7 @@ const treeUtils = (function() {
 
         const title = (prefix ? (prefix + " - ") : "") + noteTitle;
 
-        node.setTitle(title);
+        node.setTitle(escapeHtml(title));
     }
 
     return {

public/javascripts/utils.js

@@ -93,4 +93,8 @@ function isTopLevelNode(node) {
 
 function isRootNode(node) {
     return node.key === "root_1";
+}
+
+function escapeHtml(str) {
+    return $('<div/>').text(str).html();
 }

public/libraries/jquery.ui-contextmenu.js

@@ -0,0 +1,631 @@
+/*******************************************************************************
+ * jquery.ui-contextmenu.js plugin.
+ *
+ * jQuery plugin that provides a context menu (based on the jQueryUI menu widget).
+ *
+ * @see https://github.com/mar10/jquery-ui-contextmenu
+ *
+ * Copyright (c) 2013-2017, Martin Wendt (http://wwWendt.de). Licensed MIT.
+ */
+
+(function( factory ) {
+	"use strict";
+	if ( typeof define === "function" && define.amd ) {
+		// AMD. Register as an anonymous module.
+		define([ "jquery", "jquery-ui/ui/widgets/menu" ], factory );
+	} else {
+		// Browser globals
+		factory( jQuery );
+	}
+}(function( $ ) {
+
+"use strict";
+
+var supportSelectstart = "onselectstart" in document.createElement("div"),
+	match = $.ui.menu.version.match(/^(\d)\.(\d+)/),
+	uiVersion = {
+		major: parseInt(match[1], 10),
+		minor: parseInt(match[2], 10)
+	},
+	isLTE110 = ( uiVersion.major < 2 && uiVersion.minor <= 10 ),
+	isLTE111 = ( uiVersion.major < 2 && uiVersion.minor <= 11 );
+
+$.widget("moogle.contextmenu", {
+	version: "@VERSION",
+	options: {
+		addClass: "ui-contextmenu",  // Add this class to the outer <ul>
+		closeOnWindowBlur: true,     // Close menu when window loses focus
+		autoFocus: false,     // Set keyboard focus to first entry on open
+		autoTrigger: true,    // open menu on browser's `contextmenu` event
+		delegate: null,       // selector
+		hide: { effect: "fadeOut", duration: "fast" },
+		ignoreParentSelect: true, // Don't trigger 'select' for sub-menu parents
+		menu: null,           // selector or jQuery pointing to <UL>, or a definition hash
+		position: null,       // popup positon
+		preventContextMenuForPopup: false, // prevent opening the browser's system
+										   // context menu on menu entries
+		preventSelect: false, // disable text selection of target
+		show: { effect: "slideDown", duration: "fast" },
+		taphold: false,       // open menu on taphold events (requires external plugins)
+		uiMenuOptions: {},	  // Additional options, used when UI Menu is created
+		// Events:
+		beforeOpen: $.noop,   // menu about to open; return `false` to prevent opening
+		blur: $.noop,         // menu option lost focus
+		close: $.noop,        // menu was closed
+		create: $.noop,       // menu was initialized
+		createMenu: $.noop,   // menu was initialized (original UI Menu)
+		focus: $.noop,        // menu option got focus
+		open: $.noop,         // menu was opened
+		select: $.noop        // menu option was selected; return `false` to prevent closing
+	},
+	/** Constructor */
+	_create: function() {
+		var cssText, eventNames, targetId,
+			opts = this.options;
+
+		this.$headStyle = null;
+		this.$menu = null;
+		this.menuIsTemp = false;
+		this.currentTarget = null;
+		this.extraData = {};
+		this.previousFocus = null;
+
+		if (opts.delegate == null) {
+			$.error("ui-contextmenu: Missing required option `delegate`.");
+		}
+		if (opts.preventSelect) {
+			// Create a global style for all potential menu targets
+			// If the contextmenu was bound to `document`, we apply the
+			// selector relative to the <body> tag instead
+			targetId = ($(this.element).is(document) ? $("body")
+				: this.element).uniqueId().attr("id");
+			cssText = "#" + targetId + " " + opts.delegate + " { " +
+					"-webkit-user-select: none; " +
+					"-khtml-user-select: none; " +
+					"-moz-user-select: none; " +
+					"-ms-user-select: none; " +
+					"user-select: none; " +
+					"}";
+			this.$headStyle = $("<style class='moogle-contextmenu-style' />")
+				.prop("type", "text/css")
+				.appendTo("head");
+
+			try {
+				this.$headStyle.html(cssText);
+			} catch ( e ) {
+				// issue #47: fix for IE 6-8
+				this.$headStyle[0].styleSheet.cssText = cssText;
+			}
+			// TODO: the selectstart is not supported by FF?
+			if (supportSelectstart) {
+				this.element.on("selectstart" + this.eventNamespace, opts.delegate,
+									  function(event) {
+					event.preventDefault();
+				});
+			}
+		}
+		this._createUiMenu(opts.menu);
+
+		eventNames = "contextmenu" + this.eventNamespace;
+		if (opts.taphold) {
+			eventNames += " taphold" + this.eventNamespace;
+		}
+		this.element.on(eventNames, opts.delegate, $.proxy(this._openMenu, this));
+	},
+	/** Destructor, called on $().contextmenu("destroy"). */
+	_destroy: function() {
+		this.element.off(this.eventNamespace);
+
+		this._createUiMenu(null);
+
+		if (this.$headStyle) {
+			this.$headStyle.remove();
+			this.$headStyle = null;
+		}
+	},
+	/** (Re)Create jQuery UI Menu. */
+	_createUiMenu: function(menuDef) {
+		var ct, ed,
+			opts = this.options;
+
+		// Remove temporary <ul> if any
+		if (this.isOpen()) {
+			// #58: 'replaceMenu' in beforeOpen causing select: to lose ui.target
+			ct = this.currentTarget;
+			ed = this.extraData;
+			// close without animation, to force async mode
+			this._closeMenu(true);
+			this.currentTarget = ct;
+			this.extraData = ed;
+		}
+		if (this.menuIsTemp) {
+			this.$menu.remove(); // this will also destroy ui.menu
+		} else if (this.$menu) {
+			this.$menu
+				.menu("destroy")
+				.removeClass(this.options.addClass)
+				.hide();
+		}
+		this.$menu = null;
+		this.menuIsTemp = false;
+		// If a menu definition array was passed, create a hidden <ul>
+		// and generate the structure now
+		if ( !menuDef ) {
+			return;
+		} else if ($.isArray(menuDef)) {
+			this.$menu = $.moogle.contextmenu.createMenuMarkup(menuDef);
+			this.menuIsTemp = true;
+		}else if ( typeof menuDef === "string" ) {
+			this.$menu = $(menuDef);
+		} else {
+			this.$menu = menuDef;
+		}
+		// Create - but hide - the jQuery UI Menu widget
+		this.$menu
+			.hide()
+			.addClass(opts.addClass)
+			// Create a menu instance that delegates events to our widget
+			.menu($.extend(true, {}, opts.uiMenuOptions, {
+				items: "> :not(.ui-widget-header)",
+				blur: $.proxy(opts.blur, this),
+				create: $.proxy(opts.createMenu, this),
+				focus: $.proxy(opts.focus, this),
+				select: $.proxy(function(event, ui) {
+					// User selected a menu entry
+					var retval,
+						isParent = $.moogle.contextmenu.isMenu(ui.item),
+						actionHandler = ui.item.data("actionHandler");
+
+					ui.cmd = ui.item.attr("data-command");
+					ui.target = $(this.currentTarget);
+					ui.extraData = this.extraData;
+					// ignore clicks, if they only open a sub-menu
+					if ( !isParent || !opts.ignoreParentSelect) {
+						retval = this._trigger.call(this, "select", event, ui);
+						if ( actionHandler ) {
+							retval = actionHandler.call(this, event, ui);
+						}
+						if ( retval !== false ) {
+							this._closeMenu.call(this);
+						}
+						event.preventDefault();
+					}
+				}, this)
+			}));
+	},
+	/** Open popup (called on 'contextmenu' event). */
+	_openMenu: function(event, recursive) {
+		var res, promise, ui,
+			opts = this.options,
+			posOption = opts.position,
+			self = this,
+			manualTrigger = !!event.isTrigger;
+
+		if ( !opts.autoTrigger && !manualTrigger ) {
+			// ignore browser's `contextmenu` events
+			return;
+		}
+		// Prevent browser from opening the system context menu
+		event.preventDefault();
+
+		this.currentTarget = event.target;
+		this.extraData = event._extraData || {};
+
+		ui = { menu: this.$menu, target: $(this.currentTarget), extraData: this.extraData,
+			   originalEvent: event, result: null };
+
+		if ( !recursive ) {
+			res = this._trigger("beforeOpen", event, ui);
+			promise = (ui.result && $.isFunction(ui.result.promise)) ? ui.result : null;
+			ui.result = null;
+			if ( res === false ) {
+				this.currentTarget = null;
+				return false;
+			} else if ( promise ) {
+				// Handler returned a Deferred or Promise. Delay menu open until
+				// the promise is resolved
+				promise.done(function() {
+					self._openMenu(event, true);
+				});
+				this.currentTarget = null;
+				return false;
+			}
+			ui.menu = this.$menu; // Might have changed in beforeOpen
+		}
+
+		// Register global event handlers that close the dropdown-menu
+		$(document).on("keydown" + this.eventNamespace, function(event) {
+			if ( event.which === $.ui.keyCode.ESCAPE ) {
+				self._closeMenu();
+			}
+		}).on("mousedown" + this.eventNamespace + " touchstart" + this.eventNamespace,
+				function(event) {
+			// Close menu when clicked outside menu
+			if ( !$(event.target).closest(".ui-menu-item").length ) {
+				self._closeMenu();
+			}
+		});
+		$(window).on("blur" + this.eventNamespace, function(event) {
+			if ( opts.closeOnWindowBlur ) {
+				self._closeMenu();
+			}
+		});
+
+		// required for custom positioning (issue #18 and #13).
+		if ($.isFunction(posOption)) {
+			posOption = posOption(event, ui);
+		}
+		posOption = $.extend({
+			my: "left top",
+			at: "left bottom",
+			// if called by 'open' method, event does not have pageX/Y
+			of: (event.pageX === undefined) ? event.target : event,
+			collision: "fit"
+		}, posOption);
+
+		// Update entry statuses from callbacks
+		this._updateEntries(this.$menu);
+
+		// Finally display the popup
+		this.$menu
+			.show() // required to fix positioning error
+			.css({
+				position: "absolute",
+				left: 0,
+				top: 0
+			}).position(posOption)
+			.hide(); // hide again, so we can apply nice effects
+
+		if ( opts.preventContextMenuForPopup ) {
+			this.$menu.on("contextmenu" + this.eventNamespace, function(event) {
+				event.preventDefault();
+			});
+		}
+		this._show(this.$menu, opts.show, function() {
+			var $first;
+
+			// Set focus to first active menu entry
+			if ( opts.autoFocus ) {
+				self.previousFocus = $(event.target);
+				// self.$menu.focus();
+				$first = self.$menu
+					.children("li.ui-menu-item")
+					.not(".ui-state-disabled")
+					.first();
+				self.$menu.menu("focus", null, $first).focus();
+			}
+			self._trigger.call(self, "open", event, ui);
+		});
+	},
+	/** Close popup. */
+	_closeMenu: function(immediately) {
+		var self = this,
+			hideOpts = immediately ? false : this.options.hide,
+			ui = { menu: this.$menu, target: $(this.currentTarget), extraData: this.extraData };
+
+		// Note: we don't want to unbind the 'contextmenu' event
+		$(document)
+			.off("mousedown" + this.eventNamespace)
+			.off("touchstart" + this.eventNamespace)
+			.off("keydown" + this.eventNamespace);
+		$(window)
+			.off("blur" + this.eventNamespace);
+
+		self.currentTarget = null; // issue #44 after hide animation is too late
+		self.extraData = {};
+		if ( this.$menu ) { // #88: widget might have been destroyed already
+			this.$menu
+				.off("contextmenu" + this.eventNamespace);
+			this._hide(this.$menu, hideOpts, function() {
+				if ( self.previousFocus ) {
+					self.previousFocus.focus();
+					self.previousFocus = null;
+				}
+				self._trigger("close", null, ui);
+			});
+		} else {
+			self._trigger("close", null, ui);
+		}
+	},
+	/** Handle $().contextmenu("option", key, value) calls. */
+	_setOption: function(key, value) {
+		switch (key) {
+		case "menu":
+			this.replaceMenu(value);
+			break;
+		}
+		$.Widget.prototype._setOption.apply(this, arguments);
+	},
+	/** Return ui-menu entry (<LI> tag). */
+	_getMenuEntry: function(cmd) {
+		return this.$menu.find("li[data-command=" + cmd + "]");
+	},
+	/** Close context menu. */
+	close: function() {
+		if (this.isOpen()) {
+			this._closeMenu();
+		}
+	},
+	/* Apply status callbacks when menu is opened. */
+	_updateEntries: function() {
+		var self = this,
+			ui = {
+				menu: this.$menu, target: $(this.currentTarget), extraData: this.extraData };
+
+		$.each(this.$menu.find(".ui-menu-item"), function(i, o) {
+			var $entry = $(o),
+				fn = $entry.data("disabledHandler"),
+				res = fn ? fn({ type: "disabled" }, ui) : null;
+
+			ui.item = $entry;
+			ui.cmd = $entry.attr("data-command");
+			// Evaluate `disabled()` callback
+			if ( res != null ) {
+				self.enableEntry(ui.cmd, !res);
+				self.showEntry(ui.cmd, res !== "hide");
+			}
+			// Evaluate `title()` callback
+			fn = $entry.data("titleHandler"),
+			res = fn ? fn({ type: "title" }, ui) : null;
+			if ( res != null ) {
+				self.setTitle(ui.cmd, "" + res);
+			}
+			// Evaluate `tooltip()` callback
+			fn = $entry.data("tooltipHandler"),
+			res = fn ? fn({ type: "tooltip" }, ui) : null;
+			if ( res != null ) {
+				$entry.attr("title", "" + res);
+			}
+		});
+	},
+	/** Enable or disable the menu command. */
+	enableEntry: function(cmd, flag) {
+		this._getMenuEntry(cmd).toggleClass("ui-state-disabled", (flag === false));
+	},
+	/** Return ui-menu entry (LI tag) as jQuery object. */
+	getEntry: function(cmd) {
+		return this._getMenuEntry(cmd);
+	},
+	/** Return ui-menu entry wrapper as jQuery object.
+		UI 1.10: this is the <a> tag inside the LI
+		UI 1.11: this is the LI istself
+		UI 1.12: this is the <div> tag inside the LI
+	 */
+	getEntryWrapper: function(cmd) {
+		return this._getMenuEntry(cmd).find(">[role=menuitem]").addBack("[role=menuitem]");
+	},
+	/** Return Menu element (UL). */
+	getMenu: function() {
+		return this.$menu;
+	},
+	/** Return true if menu is open. */
+	isOpen: function() {
+//            return this.$menu && this.$menu.is(":visible");
+		return !!this.$menu && !!this.currentTarget;
+	},
+	/** Open context menu on a specific target (must match options.delegate)
+	 *  Optional `extraData` is passed to event handlers as `ui.extraData`.
+	 */
+	open: function(targetOrEvent, extraData) {
+		// Fake a 'contextmenu' event
+		extraData = extraData || {};
+
+		var isEvent = (targetOrEvent && targetOrEvent.type && targetOrEvent.target),
+			event =  isEvent ? targetOrEvent : {},
+			target = isEvent ? targetOrEvent.target : targetOrEvent,
+			e = jQuery.Event("contextmenu", {
+				target: $(target).get(0),
+				pageX: event.pageX,
+				pageY: event.pageY,
+				originalEvent: isEvent ? targetOrEvent : undefined,
+				_extraData: extraData
+			});
+		return this.element.trigger(e);
+	},
+	/** Replace the menu altogether. */
+	replaceMenu: function(data) {
+		this._createUiMenu(data);
+	},
+	/** Redefine a whole menu entry. */
+	setEntry: function(cmd, entry) {
+		var $ul,
+			$entryLi = this._getMenuEntry(cmd);
+
+		if (typeof entry === "string") {
+			window.console && window.console.warn(
+				"setEntry(cmd, t) with a plain string title is deprecated since v1.18." +
+				"Use setTitle(cmd, '" + entry + "') instead.");
+			return this.setTitle(cmd, entry);
+		}
+		$entryLi.empty();
+		entry.cmd = entry.cmd || cmd;
+		$.moogle.contextmenu.createEntryMarkup(entry, $entryLi);
+		if ($.isArray(entry.children)) {
+			$ul = $("<ul/>").appendTo($entryLi);
+			$.moogle.contextmenu.createMenuMarkup(entry.children, $ul);
+		}
+		// #110: jQuery UI 1.12: refresh only works when this class is not set:
+		$entryLi.removeClass("ui-menu-item");
+		this.getMenu().menu("refresh");
+	},
+	/** Set icon (pass null to remove). */
+	setIcon: function(cmd, icon) {
+		return this.updateEntry(cmd, { uiIcon: icon });
+	},
+	/** Set title. */
+	setTitle: function(cmd, title) {
+		return this.updateEntry(cmd, { title: title });
+	},
+	// /** Set tooltip (pass null to remove). */
+	// setTooltip: function(cmd, tooltip) {
+	// 	this._getMenuEntry(cmd).attr("title", tooltip);
+	// },
+	/** Show or hide the menu command. */
+	showEntry: function(cmd, flag) {
+		this._getMenuEntry(cmd).toggle(flag !== false);
+	},
+	/** Redefine selective attributes of a menu entry. */
+	updateEntry: function(cmd, entry) {
+		var $icon, $wrapper,
+			$entryLi = this._getMenuEntry(cmd);
+
+		if ( entry.title !== undefined ) {
+			$.moogle.contextmenu.updateTitle($entryLi, "" + entry.title);
+		}
+		if ( entry.tooltip !== undefined ) {
+			if ( entry.tooltip === null ) {
+				$entryLi.removeAttr("title");
+			} else {
+				$entryLi.attr("title", entry.tooltip);
+			}
+		}
+		if ( entry.uiIcon !== undefined ) {
+			$wrapper = this.getEntryWrapper(cmd),
+			$icon = $wrapper.find("span.ui-icon").not(".ui-menu-icon");
+			$icon.remove();
+			if ( entry.uiIcon ) {
+				$wrapper.append($("<span class='ui-icon' />").addClass(entry.uiIcon));
+			}
+		}
+		if ( entry.hide !== undefined ) {
+			$entryLi.toggle(!entry.hide);
+		} else if ( entry.show !== undefined ) {
+			// Note: `show` is an undocumented variant. `hide: false` is preferred
+			$entryLi.toggle(!!entry.show);
+		}
+		// if ( entry.isHeader !== undefined ) {
+		// 	$entryLi.toggleClass("ui-widget-header", !!entry.isHeader);
+		// }
+		if ( entry.data !== undefined ) {
+			$entryLi.data(entry.data);
+		}
+
+		// Set/clear class names, but handle ui-state-disabled separately
+		if ( entry.disabled === undefined ) {
+			entry.disabled = $entryLi.hasClass("ui-state-disabled");
+		}
+		if ( entry.setClass ) {
+			if ( $entryLi.hasClass("ui-menu-item") ) {
+				entry.setClass += " ui-menu-item";
+			}
+			$entryLi.removeClass();
+			$entryLi.addClass(entry.setClass);
+		} else if ( entry.addClass ) {
+			$entryLi.addClass(entry.addClass);
+		}
+		$entryLi.toggleClass("ui-state-disabled", !!entry.disabled);
+		// // #110: jQuery UI 1.12: refresh only works when this class is not set:
+		// $entryLi.removeClass("ui-menu-item");
+		// this.getMenu().menu("refresh");
+	}
+});
+
+/*
+ * Global functions
+ */
+$.extend($.moogle.contextmenu, {
+	/** Convert a menu description into a into a <li> content. */
+	createEntryMarkup: function(entry, $parentLi) {
+		var $wrapper = null;
+
+		$parentLi.attr("data-command", entry.cmd);
+
+		if ( !/[^\-\u2014\u2013\s]/.test( entry.title ) ) {
+			// hyphen, em dash, en dash: separator as defined by UI Menu 1.10
+			$parentLi.text(entry.title);
+		} else {
+			if ( isLTE110 ) {
+				// jQuery UI Menu 1.10 or before required an `<a>` tag
+				$wrapper = $("<a/>", {
+						html: "" + entry.title,
+						href: "#"
+					}).appendTo($parentLi);
+
+			} else if ( isLTE111 ) {
+				// jQuery UI Menu 1.11 preferes to avoid `<a>` tags or <div> wrapper
+				$parentLi.html("" + entry.title);
+				$wrapper = $parentLi;
+
+			} else {
+				// jQuery UI Menu 1.12 introduced `<div>` wrappers
+				$wrapper = $("<div/>", {
+						html: "" + entry.title
+					}).appendTo($parentLi);
+			}
+			if ( entry.uiIcon ) {
+				$wrapper.append($("<span class='ui-icon' />").addClass(entry.uiIcon));
+			}
+			// Store option callbacks in entry's data
+			$.each( [ "action", "disabled", "title", "tooltip" ], function(i, attr) {
+				if ( $.isFunction(entry[attr]) ) {
+					$parentLi.data(attr + "Handler", entry[attr]);
+				}
+			});
+			if ( entry.disabled === true ) {
+				$parentLi.addClass("ui-state-disabled");
+			}
+			if ( entry.isHeader ) {
+				$parentLi.addClass("ui-widget-header");
+			}
+			if ( entry.addClass ) {
+				$parentLi.addClass(entry.addClass);
+			}
+			if ( $.isPlainObject(entry.data) ) {
+				$parentLi.data(entry.data);
+			}
+			if ( typeof entry.tooltip === "string" ) {
+				$parentLi.attr("title", entry.tooltip);
+			}
+		}
+	},
+	/** Convert a nested array of command objects into a <ul> structure. */
+	createMenuMarkup: function(options, $parentUl) {
+		var i, menu, $ul, $li;
+		if ( $parentUl == null ) {
+			$parentUl = $("<ul class='ui-helper-hidden' />").appendTo("body");
+		}
+		for (i = 0; i < options.length; i++) {
+			menu = options[i];
+			$li = $("<li/>").appendTo($parentUl);
+
+			$.moogle.contextmenu.createEntryMarkup(menu, $li);
+
+			if ( $.isArray(menu.children) ) {
+				$ul = $("<ul/>").appendTo($li);
+				$.moogle.contextmenu.createMenuMarkup(menu.children, $ul);
+			}
+		}
+		return $parentUl;
+	},
+	/** Returns true if the menu item has child menu items */
+	isMenu: function(item) {
+		if ( isLTE110 ) {
+			return item.has(">a[aria-haspopup='true']").length > 0;
+		} else if ( isLTE111 ) {  // jQuery UI 1.11 used no tag wrappers
+			return item.is("[aria-haspopup='true']");
+		} else {
+			return item.has(">div[aria-haspopup='true']").length > 0;
+		}
+	},
+	/** Replace the title of elem', but retain icons andchild entries. */
+	replaceFirstTextNodeChild: function(elem, html) {
+		var $icons = elem.find(">span.ui-icon,>ul.ui-menu").detach();
+
+		elem
+			.empty()
+			.html(html)
+			.append($icons);
+	},
+	/** Updates the menu item's title */
+	updateTitle: function(item, title) {
+		if ( isLTE110 ) {  // jQuery UI 1.10 and before used <a> tags
+			$.moogle.contextmenu.replaceFirstTextNodeChild($("a", item), title);
+		} else if ( isLTE111 ) {  // jQuery UI 1.11 used no tag wrappers
+			$.moogle.contextmenu.replaceFirstTextNodeChild(item, title);
+		} else {  // jQuery UI 1.12+ introduced <div> tag wrappers
+			$.moogle.contextmenu.replaceFirstTextNodeChild($("div", item), title);
+		}
+	}
+});
+
+}));

public/libraries/knockout.min.js

@@ -0,0 +1,124 @@
+/*!
+ * Knockout JavaScript library v3.4.2
+ * (c) The Knockout.js team - http://knockoutjs.com/
+ * License: MIT (http://www.opensource.org/licenses/mit-license.php)
+ */
+
+(function() {(function(n){var x=this||(0,eval)("this"),t=x.document,M=x.navigator,u=x.jQuery,H=x.JSON;(function(n){"function"===typeof define&&define.amd?define(["exports","require"],n):"object"===typeof exports&&"object"===typeof module?n(module.exports||exports):n(x.ko={})})(function(N,O){function J(a,c){return null===a||typeof a in R?a===c:!1}function S(b,c){var d;return function(){d||(d=a.a.setTimeout(function(){d=n;b()},c))}}function T(b,c){var d;return function(){clearTimeout(d);d=a.a.setTimeout(b,c)}}function U(a,
+c){c&&c!==E?"beforeChange"===c?this.Ob(a):this.Ja(a,c):this.Pb(a)}function V(a,c){null!==c&&c.k&&c.k()}function W(a,c){var d=this.Mc,e=d[s];e.T||(this.ob&&this.Oa[c]?(d.Sb(c,a,this.Oa[c]),this.Oa[c]=null,--this.ob):e.s[c]||d.Sb(c,a,e.t?{$:a}:d.yc(a)),a.Ha&&a.Hc())}function K(b,c,d,e){a.d[b]={init:function(b,g,h,l,m){var k,r;a.m(function(){var q=g(),p=a.a.c(q),p=!d!==!p,A=!r;if(A||c||p!==k)A&&a.xa.Ca()&&(r=a.a.wa(a.f.childNodes(b),!0)),p?(A||a.f.fa(b,a.a.wa(r)),a.hb(e?e(m,q):m,b)):a.f.za(b),k=p},null,
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+var g;a.Fb=function(b){if(b!=n&&!(b instanceof a.P))throw Error("templateEngine must inherit from ko.templateEngine");g=b};a.Cb=function(b,c,k,h,q){k=k||{};if((k.templateEngine||g)==n)throw Error("Set a template engine before calling renderTemplate");q=q||"replaceChildren";if(h){var p=d(h);return a.B(function(){var g=c&&c instanceof a.R?c:new a.R(c,null,null,null,{exportDependencies:!0}),n=f(b,g.$data,g),g=e(h,q,n,g,k);"replaceNode"==q&&(h=g,p=d(h))},null,{ya:function(){return!p||!a.a.qb(p)},i:p&&
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+c.length){var e,f,g,h,l;for(e=f=0;(!d||e<d)&&(h=a[f]);++f){for(g=0;l=c[g];++g)if(h.value===l.value){h.moved=l.index;l.moved=h.index;c.splice(g,1);e=g=0;break}e+=g}}};a.a.lb=function(){function b(b,d,e,f,g){var h=Math.min,l=Math.max,m=[],k,n=b.length,q,p=d.length,s=p-n||1,t=n+p+1,v,u,x;for(k=0;k<=n;k++)for(u=v,m.push(v=[]),x=h(p,k+s),q=l(0,k-1);q<=x;q++)v[q]=q?k?b[k-1]===d[q-1]?u[q-1]:h(u[q]||t,v[q-1]||t)+1:q+1:k+1;h=[];l=[];s=[];k=n;for(q=p;k||q;)p=m[k][q]-1,q&&p===m[k][q-1]?l.push(h[h.length]={status:e,
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+t=[],v=0,u=0,x=[],z=[];f=[];for(var D=[],p=[],w,C=0,B,E;B=s[C];C++)switch(E=B.moved,B.status){case "deleted":E===n&&(w=q[v],w.B&&(w.B.k(),w.B=n),a.a.Ba(w.ea,e).length&&(h.beforeRemove&&(t.push(w),z.push(w),w.ka===d?w=null:f[C]=w),w&&x.push.apply(x,w.ea)));v++;break;case "retained":m(C,v++);break;case "added":E!==n?m(C,E):(w={ka:B.value,tb:a.O(u++)},t.push(w),z.push(w),r||(p[C]=w))}a.a.e.set(e,c,t);k(h.beforeMove,D);a.a.r(x,h.beforeRemove?a.ba:a.removeNode);for(var C=0,r=a.f.firstChild(e),F;w=z[C];C++){w.ea||
+a.a.extend(w,b(e,g,w.ka,l,w.tb));for(v=0;s=w.ea[v];r=s.nextSibling,F=s,v++)s!==r&&a.f.kc(e,s,F);!w.ad&&l&&(l(w.ka,w.ea,w.tb),w.ad=!0)}k(h.beforeRemove,f);for(C=0;C<f.length;++C)f[C]&&(f[C].ka=d);k(h.afterMove,D);k(h.afterAdd,p)}})();a.b("utils.setDomNodeChildrenFromArrayMapping",a.a.Db);a.X=function(){this.allowTemplateRewriting=!1};a.X.prototype=new a.P;a.X.prototype.renderTemplateSource=function(b,c,d,e){if(c=(9>a.a.C?0:b.nodes)?b.nodes():null)return a.a.W(c.cloneNode(!0).childNodes);b=b.text();
+return a.a.na(b,e)};a.X.vb=new a.X;a.Fb(a.X.vb);a.b("nativeTemplateEngine",a.X);(function(){a.xb=function(){var a=this.ed=function(){if(!u||!u.tmpl)return 0;try{if(0<=u.tmpl.tag.tmpl.open.toString().indexOf("__"))return 2}catch(a){}return 1}();this.renderTemplateSource=function(b,e,f,g){g=g||t;f=f||{};if(2>a)throw Error("Your version of jQuery.tmpl is too old. Please upgrade to jQuery.tmpl 1.0.0pre or later.");var h=b.data("precompiled");h||(h=b.text()||"",h=u.template(null,"{{ko_with $item.koBindingContext}}"+
+h+"{{/ko_with}}"),b.data("precompiled",h));b=[e.$data];e=u.extend({koBindingContext:e},f.templateOptions);e=u.tmpl(h,b,e);e.appendTo(g.createElement("div"));u.fragments={};return e};this.createJavaScriptEvaluatorBlock=function(a){return"{{ko_code ((function() { return "+a+" })()) }}"};this.addTemplate=function(a,b){t.write("<script type='text/html' id='"+a+"'>"+b+"\x3c/script>")};0<a&&(u.tmpl.tag.ko_code={open:"__.push($1 || '');"},u.tmpl.tag.ko_with={open:"with($1) {",close:"} "})};a.xb.prototype=
+new a.P;var b=new a.xb;0<b.ed&&a.Fb(b);a.b("jqueryTmplTemplateEngine",a.xb)})()})})();})();

public/stylesheets/style.css

@@ -74,6 +74,12 @@ span.fancytree-node.fancytree-active-clone:not(.fancytree-active) .fancytree-tit
     font-weight: bold;
 }
 
+/* By default not focused active tree item is not easily visible, this makes it more visible */
+span.fancytree-active:not(.fancytree-focused) .fancytree-title {
+    background-color: #ddd !important;
+    border-color: #555 !important;
+}
+
 .ui-autocomplete {
     max-height: 300px;
     overflow-y: auto;
@@ -169,7 +175,6 @@ div.ui-tooltip {
 
 /* Allow to use <kbd> elements inside the title to define shortcut hints. */
 .ui-menu kbd, button kbd {
-    float: right;
     color: black;
     border: none;
     background-color: transparent;
@@ -178,6 +183,7 @@ div.ui-tooltip {
 
 .ui-menu kbd {
     margin-left: 30px;
+    float: right;
 }
 
 #note-id-display {
@@ -185,9 +191,12 @@ div.ui-tooltip {
     margin-left: 10px;
 }
 
-#loader-wrapper{position:fixed;top:0;left:0;width:100%;height:100%;z-index:1000;background-color:#fff;opacity:1;transition:opacity 2s ease}
-#loader{display:block;position:relative;left:50%;top:50%;width:150px;height:150px;margin:-75px 0 0 -75px;border-radius:50%;border:3px solid transparent;border-top-color:#777;-webkit-animation:spin 2s linear infinite;animation:spin 2s linear infinite}
-#loader:before{content:"";position:absolute;top:5px;left:5px;right:5px;bottom:5px;border-radius:50%;border:3px solid transparent;border-top-color:#aaa;-webkit-animation:spin 3s linear infinite;animation:spin 3s linear infinite}
-#loader:after{content:"";position:absolute;top:15px;left:15px;right:15px;bottom:15px;border-radius:50%;border:3px solid transparent;border-top-color:#ddd;-webkit-animation:spin 1.5s linear infinite;animation:spin 1.5s linear infinite}
-@-webkit-keyframes spin{0%{-webkit-transform:rotate(0deg);-ms-transform:rotate(0deg);transform:rotate(0deg)}100%{-webkit-transform:rotate(360deg);-ms-transform:rotate(360deg);transform:rotate(360deg)}}
-@keyframes spin{0%{-webkit-transform:rotate(0deg);-ms-transform:rotate(0deg);transform:rotate(0deg)}100%{-webkit-transform:rotate(360deg);-ms-transform:rotate(360deg);transform:rotate(360deg)}}
+#note-source {
+    height: 98%;
+    width: 100%;
+    overflow: scroll;
+}
+
+.suppressed {
+    filter: opacity(7%);
+}

routes/api/anonymization.js

@@ -4,11 +4,12 @@ const express = require('express');
 const router = express.Router();
 const anonymization = require('../../services/anonymization');
 const auth = require('../../services/auth');
+const wrap = require('express-promise-wrap').wrap;
 
-router.post('/anonymize', auth.checkApiAuth, async (req, res, next) => {
+router.post('/anonymize', auth.checkApiAuth, wrap(async (req, res, next) => {
     await anonymization.anonymize();
 
     res.send({});
-});
+}));
 
 module.exports = router;

routes/api/app_info.js

@@ -4,9 +4,10 @@ const express = require('express');
 const router = express.Router();
 const app_info = require('../../services/app_info');
 const auth = require('../../services/auth');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('', auth.checkApiAuth, async (req, res, next) => {
+router.get('', auth.checkApiAuth, wrap(async (req, res, next) => {
     res.send(app_info);
-});
+}));
 
 module.exports = router;

routes/api/attributes.js

@@ -0,0 +1,48 @@
+"use strict";
+
+const express = require('express');
+const router = express.Router();
+const sql = require('../../services/sql');
+const auth = require('../../services/auth');
+const sync_table = require('../../services/sync_table');
+const utils = require('../../services/utils');
+const wrap = require('express-promise-wrap').wrap;
+
+router.get('/:noteId/attributes', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteId = req.params.noteId;
+
+    res.send(await sql.getAll("SELECT * FROM attributes WHERE note_id = ? ORDER BY date_created", [noteId]));
+}));
+
+router.put('/:noteId/attributes', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteId = req.params.noteId;
+    const attributes = req.body;
+    const now = utils.nowDate();
+
+    await sql.doInTransaction(async () => {
+        for (const attr of attributes) {
+            if (attr.attribute_id) {
+                await sql.execute("UPDATE attributes SET name = ?, value = ?, date_modified = ? WHERE attribute_id = ?",
+                    [attr.name, attr.value, now, attr.attribute_id]);
+            }
+            else {
+                attr.attribute_id = utils.newAttributeId();
+
+                await sql.insert("attributes", {
+                   attribute_id: attr.attribute_id,
+                   note_id: noteId,
+                   name: attr.name,
+                   value: attr.value,
+                   date_created: now,
+                   date_modified: now
+                });
+            }
+
+            await sync_table.addAttributeSync(attr.attribute_id);
+        }
+    });
+
+    res.send(await sql.getAll("SELECT * FROM attributes WHERE note_id = ? ORDER BY date_created", [noteId]));
+}));
+
+module.exports = router;

routes/api/cleanup.js

@@ -7,8 +7,9 @@ const utils = require('../../services/utils');
 const sync_table = require('../../services/sync_table');
 const auth = require('../../services/auth');
 const log = require('../../services/log');
+const wrap = require('express-promise-wrap').wrap;
 
-router.post('/cleanup-soft-deleted-items', auth.checkApiAuth, async (req, res, next) => {
+router.post('/cleanup-soft-deleted-items', auth.checkApiAuth, wrap(async (req, res, next) => {
     await sql.doInTransaction(async () => {
         const noteIdsToDelete = await sql.getFirstColumn("SELECT note_id FROM notes WHERE is_deleted = 1");
         const noteIdsSql = noteIdsToDelete
@@ -19,8 +20,16 @@ router.post('/cleanup-soft-deleted-items', auth.checkApiAuth, async (req, res, n
 
         await sql.execute(`DELETE FROM notes_history WHERE note_id IN (${noteIdsSql})`);
 
+        await sql.execute(`DELETE FROM notes_image WHERE note_id IN (${noteIdsSql})`);
+
+        await sql.execute(`DELETE FROM attributes WHERE note_id IN (${noteIdsSql})`);
+
         await sql.execute("DELETE FROM notes_tree WHERE is_deleted = 1");
 
+        await sql.execute("DELETE FROM notes_image WHERE is_deleted = 1");
+
+        await sql.execute("DELETE FROM images WHERE is_deleted = 1");
+
         await sql.execute("DELETE FROM notes WHERE is_deleted = 1");
 
         await sql.execute("DELETE FROM recent_notes");
@@ -34,14 +43,41 @@ router.post('/cleanup-soft-deleted-items', auth.checkApiAuth, async (req, res, n
     });
 
     res.send({});
-});
+}));
 
-router.post('/vacuum-database', auth.checkApiAuth, async (req, res, next) => {
+router.post('/cleanup-unused-images', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const sourceId = req.headers.source_id;
+
+    await sql.doInTransaction(async () => {
+        const unusedImageIds = await sql.getFirstColumn(`
+          SELECT images.image_id 
+          FROM images 
+            LEFT JOIN notes_image ON notes_image.image_id = images.image_id AND notes_image.is_deleted = 0
+          WHERE
+            images.is_deleted = 0
+            AND notes_image.note_image_id IS NULL`);
+
+        const now = utils.nowDate();
+
+        for (const imageId of unusedImageIds) {
+            log.info(`Deleting unused image: ${imageId}`);
+
+            await sql.execute("UPDATE images SET is_deleted = 1, data = null, date_modified = ? WHERE image_id = ?",
+                [now, imageId]);
+
+            await sync_table.addImageSync(imageId, sourceId);
+        }
+    });
+
+    res.send({});
+}));
+
+router.post('/vacuum-database', auth.checkApiAuth, wrap(async (req, res, next) => {
     await sql.execute("VACUUM");
 
     log.info("Database has been vacuumed.");
 
     res.send({});
-});
+}));
 
 module.exports = router;

routes/api/cloning.js

@@ -0,0 +1,84 @@
+"use strict";
+
+const express = require('express');
+const router = express.Router();
+const sql = require('../../services/sql');
+const auth = require('../../services/auth');
+const utils = require('../../services/utils');
+const sync_table = require('../../services/sync_table');
+const wrap = require('express-promise-wrap').wrap;
+const tree = require('../../services/tree');
+
+router.put('/:childNoteId/clone-to/:parentNoteId', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const parentNoteId = req.params.parentNoteId;
+    const childNoteId = req.params.childNoteId;
+    const prefix = req.body.prefix;
+    const sourceId = req.headers.source_id;
+
+    if (!await tree.validateParentChild(res, parentNoteId, childNoteId)) {
+        return;
+    }
+
+    const maxNotePos = await sql.getFirstValue('SELECT MAX(note_position) FROM notes_tree WHERE parent_note_id = ? AND is_deleted = 0', [parentNoteId]);
+    const newNotePos = maxNotePos === null ? 0 : maxNotePos + 1;
+
+    await sql.doInTransaction(async () => {
+        const noteTree = {
+            note_tree_id: utils.newNoteTreeId(),
+            note_id: childNoteId,
+            parent_note_id: parentNoteId,
+            prefix: prefix,
+            note_position: newNotePos,
+            is_expanded: 0,
+            date_modified: utils.nowDate(),
+            is_deleted: 0
+        };
+
+        await sql.replace("notes_tree", noteTree);
+
+        await sync_table.addNoteTreeSync(noteTree.note_tree_id, sourceId);
+
+        await sql.execute("UPDATE notes_tree SET is_expanded = 1 WHERE note_id = ?", [parentNoteId]);
+    });
+
+    res.send({ success: true });
+}));
+
+router.put('/:noteId/clone-after/:afterNoteTreeId', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteId = req.params.noteId;
+    const afterNoteTreeId = req.params.afterNoteTreeId;
+    const sourceId = req.headers.source_id;
+
+    const afterNote = await tree.getNoteTree(afterNoteTreeId);
+
+    if (!await tree.validateParentChild(res, afterNote.parent_note_id, noteId)) {
+        return;
+    }
+
+    await sql.doInTransaction(async () => {
+        // we don't change date_modified so other changes are prioritized in case of conflict
+        // also we would have to sync all those modified note trees otherwise hash checks would fail
+        await sql.execute("UPDATE notes_tree SET note_position = note_position + 1 WHERE parent_note_id = ? AND note_position > ? AND is_deleted = 0",
+            [afterNote.parent_note_id, afterNote.note_position]);
+
+        await sync_table.addNoteReorderingSync(afterNote.parent_note_id, sourceId);
+
+        const noteTree = {
+            note_tree_id: utils.newNoteTreeId(),
+            note_id: noteId,
+            parent_note_id: afterNote.parent_note_id,
+            note_position: afterNote.note_position + 1,
+            is_expanded: 0,
+            date_modified: utils.nowDate(),
+            is_deleted: 0
+        };
+
+        await sql.replace("notes_tree", noteTree);
+
+        await sync_table.addNoteTreeSync(noteTree.note_tree_id, sourceId);
+    });
+
+    res.send({ success: true });
+}));
+
+module.exports = router;

routes/api/event_log.js

@@ -4,14 +4,15 @@ const express = require('express');
 const router = express.Router();
 const sql = require('../../services/sql');
 const auth = require('../../services/auth');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('', auth.checkApiAuth, async (req, res, next) => {
+router.get('', auth.checkApiAuth, wrap(async (req, res, next) => {
     await deleteOld();
 
     const result = await sql.getAll("SELECT * FROM event_log ORDER BY date_added DESC");
 
     res.send(result);
-});
+}));
 
 async function deleteOld() {
     const cutoffId = await sql.getFirstValue("SELECT id FROM event_log ORDER BY id DESC LIMIT 1000, 1");

routes/api/export.js

@@ -8,8 +8,9 @@ const sql = require('../../services/sql');
 const data_dir = require('../../services/data_dir');
 const html = require('html');
 const auth = require('../../services/auth');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('/:noteId/to/:directory', auth.checkApiAuth, async (req, res, next) => {
+router.get('/:noteId/to/:directory', auth.checkApiAuth, wrap(async (req, res, next) => {
     const noteId = req.params.noteId;
     const directory = req.params.directory.replace(/[^0-9a-zA-Z_-]/gi, '');
 
@@ -30,7 +31,7 @@ router.get('/:noteId/to/:directory', auth.checkApiAuth, async (req, res, next) =
     await exportNote(noteTreeId, completeExportDir);
 
     res.send({});
-});
+}));
 
 async function exportNote(noteTreeId, dir) {
     const noteTree = await sql.getFirst("SELECT * FROM notes_tree WHERE note_tree_id = ?", [noteTreeId]);

routes/api/image.js

@@ -0,0 +1,148 @@
+"use strict";
+
+const express = require('express');
+const router = express.Router();
+const sql = require('../../services/sql');
+const auth = require('../../services/auth');
+const utils = require('../../services/utils');
+const sync_table = require('../../services/sync_table');
+const multer = require('multer')();
+const imagemin = require('imagemin');
+const imageminMozJpeg = require('imagemin-mozjpeg');
+const imageminPngQuant = require('imagemin-pngquant');
+const imageminGifLossy = require('imagemin-giflossy');
+const jimp = require('jimp');
+const imageType = require('image-type');
+const sanitizeFilename = require('sanitize-filename');
+const wrap = require('express-promise-wrap').wrap;
+const RESOURCE_DIR = require('../../services/resource_dir').RESOURCE_DIR;
+const fs = require('fs');
+
+router.get('/:imageId/:filename', auth.checkApiAuthOrElectron, wrap(async (req, res, next) => {
+    const image = await sql.getFirst("SELECT * FROM images WHERE image_id = ?", [req.params.imageId]);
+
+    if (!image) {
+        return res.status(404).send({});
+    }
+    else if (image.data === null) {
+        res.set('Content-Type', 'image/png');
+        return res.send(fs.readFileSync(RESOURCE_DIR + '/db/image-deleted.png'));
+    }
+
+    res.set('Content-Type', 'image/' + image.format);
+
+    res.send(image.data);
+}));
+
+router.post('', auth.checkApiAuthOrElectron, multer.single('upload'), wrap(async (req, res, next) => {
+    const sourceId = req.headers.source_id;
+    const noteId = req.query.noteId;
+    const file = req.file;
+
+    const note = await sql.getFirst("SELECT * FROM notes WHERE note_id = ?", [noteId]);
+
+    if (!note) {
+        return res.status(404).send(`Note ${noteId} doesn't exist.`);
+    }
+
+    if (!["image/png", "image/jpeg", "image/gif"].includes(file.mimetype)) {
+        return res.status(400).send("Unknown image type: " + file.mimetype);
+    }
+
+    const now = utils.nowDate();
+
+    const resizedImage = await resize(file.buffer);
+    const optimizedImage = await optimize(resizedImage);
+
+    const imageFormat = imageType(optimizedImage);
+
+    const fileNameWithouExtension = file.originalname.replace(/\.[^/.]+$/, "");
+    const fileName = sanitizeFilename(fileNameWithouExtension + "." + imageFormat.ext);
+
+    const imageId = utils.newImageId();
+
+    await sql.doInTransaction(async () => {
+        await sql.insert("images", {
+            image_id: imageId,
+            format: imageFormat.ext,
+            name: fileName,
+            checksum: utils.hash(optimizedImage),
+            data: optimizedImage,
+            is_deleted: 0,
+            date_modified: now,
+            date_created: now
+        });
+
+        await sync_table.addImageSync(imageId, sourceId);
+
+        const noteImageId = utils.newNoteImageId();
+
+        await sql.insert("notes_image", {
+            note_image_id: noteImageId,
+            note_id: noteId,
+            image_id: imageId,
+            is_deleted: 0,
+            date_modified: now,
+            date_created: now
+        });
+
+        await sync_table.addNoteImageSync(noteImageId, sourceId);
+    });
+
+    res.send({
+        uploaded: true,
+        url: `/api/images/${imageId}/${fileName}`
+    });
+}));
+
+const MAX_SIZE = 1000;
+const MAX_BYTE_SIZE = 200000; // images should have under 100 KBs
+
+async function resize(buffer) {
+    const image = await jimp.read(buffer);
+
+    if (image.bitmap.width > image.bitmap.height && image.bitmap.width > MAX_SIZE) {
+        image.resize(MAX_SIZE, jimp.AUTO);
+    }
+    else if (image.bitmap.height > MAX_SIZE) {
+        image.resize(jimp.AUTO, MAX_SIZE);
+    }
+    else if (buffer.byteLength <= MAX_BYTE_SIZE) {
+        return buffer;
+    }
+
+    // we do resizing with max quality which will be trimmed during optimization step next
+    image.quality(100);
+
+    // when converting PNG to JPG we lose alpha channel, this is replaced by white to match Trilium white background
+    image.background(0xFFFFFFFF);
+
+    // getBuffer doesn't support promises so this workaround
+    return await new Promise((resolve, reject) => image.getBuffer(jimp.MIME_JPEG, (err, data) => {
+        if (err) {
+            reject(err);
+        }
+        else {
+            resolve(data);
+        }
+    }));
+}
+
+async function optimize(buffer) {
+    return await imagemin.buffer(buffer, {
+        plugins: [
+            imageminMozJpeg({
+                quality: 50
+            }),
+            imageminPngQuant({
+                quality: "0-70"
+            }),
+            imageminGifLossy({
+                lossy: 80,
+                optimize: '3' // needs to be string
+            })
+        ]
+    });
+}
+
+module.exports = router;

routes/api/import.js

@@ -8,8 +8,9 @@ const data_dir = require('../../services/data_dir');
 const utils = require('../../services/utils');
 const sync_table = require('../../services/sync_table');
 const auth = require('../../services/auth');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('/:directory/to/:parentNoteId', auth.checkApiAuth, async (req, res, next) => {
+router.get('/:directory/to/:parentNoteId', auth.checkApiAuth, wrap(async (req, res, next) => {
     const directory = req.params.directory.replace(/[^0-9a-zA-Z_-]/gi, '');
     const parentNoteId = req.params.parentNoteId;
 
@@ -18,7 +19,7 @@ router.get('/:directory/to/:parentNoteId', auth.checkApiAuth, async (req, res, n
     await sql.doInTransaction(async () => await importNotes(dir, parentNoteId));
 
     res.send({});
-});
+}));
 
 async function importNotes(dir, parentNoteId) {
     const parent = await sql.getFirst("SELECT * FROM notes WHERE note_id = ?", [parentNoteId]);

routes/api/login.js

@@ -9,8 +9,9 @@ const auth = require('../../services/auth');
 const password_encryption = require('../../services/password_encryption');
 const protected_session = require('../../services/protected_session');
 const app_info = require('../../services/app_info');
+const wrap = require('express-promise-wrap').wrap;
 
-router.post('/sync', async (req, res, next) => {
+router.post('/sync', wrap(async (req, res, next) => {
     const timestampStr = req.body.timestamp;
 
     const timestamp = utils.parseDate(timestampStr);
@@ -44,10 +45,10 @@ router.post('/sync', async (req, res, next) => {
     res.send({
         sourceId: source_id.getCurrentSourceId()
     });
-});
+}));
 
 // this is for entering protected mode so user has to be already logged-in (that's the reason we don't require username)
-router.post('/protected', auth.checkApiAuth, async (req, res, next) => {
+router.post('/protected', auth.checkApiAuth, wrap(async (req, res, next) => {
     const password = req.body.password;
 
     if (!await password_encryption.verifyPassword(password)) {
@@ -67,6 +68,6 @@ router.post('/protected', auth.checkApiAuth, async (req, res, next) => {
         success: true,
         protectedSessionId: protectedSessionId
     });
-});
+}));
 
 module.exports = router;

routes/api/migration.js

@@ -6,20 +6,21 @@ const auth = require('../../services/auth');
 const options = require('../../services/options');
 const migration = require('../../services/migration');
 const app_info = require('../../services/app_info');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('', auth.checkApiAuthForMigrationPage, async (req, res, next) => {
+router.get('', auth.checkApiAuthForMigrationPage, wrap(async (req, res, next) => {
     res.send({
         db_version: parseInt(await options.getOption('db_version')),
         app_db_version: app_info.db_version
     });
-});
+}));
 
-router.post('', auth.checkApiAuthForMigrationPage, async (req, res, next) => {
+router.post('', auth.checkApiAuthForMigrationPage, wrap(async (req, res, next) => {
     const migrations = await migration.migrate();
 
     res.send({
         migrations: migrations
     });
-});
+}));
 
 module.exports = router;

routes/api/note_history.js

@@ -7,8 +7,9 @@ const auth = require('../../services/auth');
 const data_encryption = require('../../services/data_encryption');
 const protected_session = require('../../services/protected_session');
 const sync_table = require('../../services/sync_table');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('/:noteId', auth.checkApiAuth, async (req, res, next) => {
+router.get('/:noteId', auth.checkApiAuth, wrap(async (req, res, next) => {
     const noteId = req.params.noteId;
     const history = await sql.getAll("SELECT * FROM notes_history WHERE note_id = ? order by date_modified_to desc", [noteId]);
 
@@ -22,9 +23,9 @@ router.get('/:noteId', auth.checkApiAuth, async (req, res, next) => {
     }
 
     res.send(history);
-});
+}));
 
-router.put('', auth.checkApiAuth, async (req, res, next) => {
+router.put('', auth.checkApiAuth, wrap(async (req, res, next) => {
     const sourceId = req.headers.source_id;
 
     await sql.doInTransaction(async () => {
@@ -34,6 +35,6 @@ router.put('', auth.checkApiAuth, async (req, res, next) => {
     });
 
     res.send();
-});
+}));
 
 module.exports = router;

routes/api/notes.js

@@ -8,8 +8,10 @@ const notes = require('../../services/notes');
 const log = require('../../services/log');
 const protected_session = require('../../services/protected_session');
 const data_encryption = require('../../services/data_encryption');
+const tree = require('../../services/tree');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('/:noteId', auth.checkApiAuth, async (req, res, next) => {
+router.get('/:noteId', auth.checkApiAuth, wrap(async (req, res, next) => {
     const noteId = req.params.noteId;
 
     const detail = await sql.getFirst("SELECT * FROM notes WHERE note_id = ?", [noteId]);
@@ -30,9 +32,9 @@ router.get('/:noteId', auth.checkApiAuth, async (req, res, next) => {
     res.send({
         detail: detail
     });
-});
+}));
 
-router.post('/:parentNoteId/children', auth.checkApiAuth, async (req, res, next) => {
+router.post('/:parentNoteId/children', auth.checkApiAuth, wrap(async (req, res, next) => {
     const sourceId = req.headers.source_id;
     const parentNoteId = req.params.parentNoteId;
     const note = req.body;
@@ -43,9 +45,9 @@ router.post('/:parentNoteId/children', auth.checkApiAuth, async (req, res, next)
         'note_id': noteId,
         'note_tree_id': noteTreeId
     });
-});
+}));
 
-router.put('/:noteId', auth.checkApiAuth, async (req, res, next) => {
+router.put('/:noteId', auth.checkApiAuth, wrap(async (req, res, next) => {
     const note = req.body;
     const noteId = req.params.noteId;
     const sourceId = req.headers.source_id;
@@ -54,17 +56,9 @@ router.put('/:noteId', auth.checkApiAuth, async (req, res, next) => {
     await notes.updateNote(noteId, note, dataKey, sourceId);
 
     res.send({});
-});
+}));
 
-router.delete('/:noteTreeId', auth.checkApiAuth, async (req, res, next) => {
-    await sql.doInTransaction(async () => {
-        await notes.deleteNote(req.params.noteTreeId, req.headers.source_id);
-    });
-
-    res.send({});
-});
-
-router.get('/', auth.checkApiAuth, async (req, res, next) => {
+router.get('/', auth.checkApiAuth, wrap(async (req, res, next) => {
     const search = '%' + req.query.search + '%';
 
     const result = await sql.getAll("SELECT note_id FROM notes WHERE note_title LIKE ? OR note_text LIKE ?", [search, search]);
@@ -76,6 +70,29 @@ router.get('/', auth.checkApiAuth, async (req, res, next) => {
     }
 
     res.send(noteIdList);
-});
+}));
+
+router.put('/:noteId/sort', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteId = req.params.noteId;
+    const sourceId = req.headers.source_id;
+    const dataKey = protected_session.getDataKey(req);
+
+    await tree.sortNotesAlphabetically(noteId, dataKey, sourceId);
+
+    res.send({});
+}));
+
+router.put('/:noteId/protect-sub-tree/:isProtected', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteId = req.params.noteId;
+    const isProtected = !!parseInt(req.params.isProtected);
+    const dataKey = protected_session.getDataKey(req);
+    const sourceId = req.headers.source_id;
+
+    await sql.doInTransaction(async () => {
+        await notes.protectNoteRecursively(noteId, dataKey, isProtected, sourceId);
+    });
+
+    res.send({});
+}));
 
 module.exports = router;

routes/api/notes_move.js

@@ -1,227 +0,0 @@
-"use strict";
-
-const express = require('express');
-const router = express.Router();
-const sql = require('../../services/sql');
-const utils = require('../../services/utils');
-const auth = require('../../services/auth');
-const sync_table = require('../../services/sync_table');
-
-router.put('/:noteTreeId/move-to/:parentNoteId', auth.checkApiAuth, async (req, res, next) => {
-    const noteTreeId = req.params.noteTreeId;
-    const parentNoteId = req.params.parentNoteId;
-    const sourceId = req.headers.source_id;
-
-    const maxNotePos = await sql.getFirstValue('SELECT MAX(note_position) FROM notes_tree WHERE parent_note_id = ? AND is_deleted = 0', [parentNoteId]);
-    const newNotePos = maxNotePos === null ? 0 : maxNotePos + 1;
-
-    const now = utils.nowDate();
-
-    await sql.doInTransaction(async () => {
-        await sql.execute("UPDATE notes_tree SET parent_note_id = ?, note_position = ?, date_modified = ? WHERE note_tree_id = ?",
-            [parentNoteId, newNotePos, now, noteTreeId]);
-
-        await sync_table.addNoteTreeSync(noteTreeId, sourceId);
-    });
-
-    res.send({});
-});
-
-router.put('/:noteTreeId/move-before/:beforeNoteTreeId', auth.checkApiAuth, async (req, res, next) => {
-    const noteTreeId = req.params.noteTreeId;
-    const beforeNoteTreeId = req.params.beforeNoteTreeId;
-    const sourceId = req.headers.source_id;
-
-    const beforeNote = await sql.getFirst("SELECT * FROM notes_tree WHERE note_tree_id = ?", [beforeNoteTreeId]);
-
-    if (beforeNote) {
-        await sql.doInTransaction(async () => {
-            // we don't change date_modified so other changes are prioritized in case of conflict
-            // also we would have to sync all those modified note trees otherwise hash checks would fail
-            await sql.execute("UPDATE notes_tree SET note_position = note_position + 1 WHERE parent_note_id = ? AND note_position >= ? AND is_deleted = 0",
-                [beforeNote.parent_note_id, beforeNote.note_position]);
-
-            await sync_table.addNoteReorderingSync(beforeNote.parent_note_id, sourceId);
-
-            const now = utils.nowDate();
-
-            await sql.execute("UPDATE notes_tree SET parent_note_id = ?, note_position = ?, date_modified = ? WHERE note_tree_id = ?",
-                [beforeNote.parent_note_id, beforeNote.note_position, now, noteTreeId]);
-
-            await sync_table.addNoteTreeSync(noteTreeId, sourceId);
-        });
-
-        res.send({});
-    }
-    else {
-        res.status(500).send("Before note " + beforeNoteTreeId + " doesn't exist.");
-    }
-});
-
-router.put('/:noteTreeId/move-after/:afterNoteTreeId', auth.checkApiAuth, async (req, res, next) => {
-    const noteTreeId = req.params.noteTreeId;
-    const afterNoteTreeId = req.params.afterNoteTreeId;
-    const sourceId = req.headers.source_id;
-
-    const afterNote = await sql.getFirst("SELECT * FROM notes_tree WHERE note_tree_id = ?", [afterNoteTreeId]);
-
-    if (afterNote) {
-        await sql.doInTransaction(async () => {
-            // we don't change date_modified so other changes are prioritized in case of conflict
-            // also we would have to sync all those modified note trees otherwise hash checks would fail
-            await sql.execute("UPDATE notes_tree SET note_position = note_position + 1 WHERE parent_note_id = ? AND note_position > ? AND is_deleted = 0",
-                [afterNote.parent_note_id, afterNote.note_position]);
-
-            await sync_table.addNoteReorderingSync(afterNote.parent_note_id, sourceId);
-
-            await sql.execute("UPDATE notes_tree SET parent_note_id = ?, note_position = ?, date_modified = ? WHERE note_tree_id = ?",
-                [afterNote.parent_note_id, afterNote.note_position + 1, utils.nowDate(), noteTreeId]);
-
-            await sync_table.addNoteTreeSync(noteTreeId, sourceId);
-        });
-
-        res.send({});
-    }
-    else {
-        res.status(500).send("After note " + afterNoteTreeId + " doesn't exist.");
-    }
-});
-
-router.put('/:childNoteId/clone-to/:parentNoteId', auth.checkApiAuth, async (req, res, next) => {
-    const parentNoteId = req.params.parentNoteId;
-    const childNoteId = req.params.childNoteId;
-    const prefix = req.body.prefix;
-    const sourceId = req.headers.source_id;
-
-    const existing = await sql.getFirst('SELECT * FROM notes_tree WHERE note_id = ? AND parent_note_id = ?', [childNoteId, parentNoteId]);
-
-    if (existing && !existing.is_deleted) {
-        return res.send({
-            success: false,
-            message: 'This note already exists in target parent note.'
-        });
-    }
-
-    if (!await checkCycle(parentNoteId, childNoteId)) {
-        return res.send({
-            success: false,
-            message: 'Cloning note here would create cycle.'
-        });
-    }
-
-    const maxNotePos = await sql.getFirstValue('SELECT MAX(note_position) FROM notes_tree WHERE parent_note_id = ? AND is_deleted = 0', [parentNoteId]);
-    const newNotePos = maxNotePos === null ? 0 : maxNotePos + 1;
-
-    await sql.doInTransaction(async () => {
-        const noteTree = {
-            note_tree_id: utils.newNoteTreeId(),
-            note_id: childNoteId,
-            parent_note_id: parentNoteId,
-            prefix: prefix,
-            note_position: newNotePos,
-            is_expanded: 0,
-            date_modified: utils.nowDate(),
-            is_deleted: 0
-        };
-
-        await sql.replace("notes_tree", noteTree);
-
-        await sync_table.addNoteTreeSync(noteTree.note_tree_id, sourceId);
-
-        await sql.execute("UPDATE notes_tree SET is_expanded = 1 WHERE note_id = ?", [parentNoteId]);
-    });
-
-    res.send({
-        success: true
-    });
-});
-
-router.put('/:noteId/clone-after/:afterNoteTreeId', auth.checkApiAuth, async (req, res, next) => {
-    const noteId = req.params.noteId;
-    const afterNoteTreeId = req.params.afterNoteTreeId;
-    const sourceId = req.headers.source_id;
-
-    const afterNote = await sql.getFirst("SELECT * FROM notes_tree WHERE note_tree_id = ?", [afterNoteTreeId]);
-
-    if (!afterNote) {
-        return res.status(500).send("After note " + afterNoteTreeId + " doesn't exist.");
-    }
-
-    if (!await checkCycle(afterNote.parent_note_id, noteId)) {
-        return res.send({
-            success: false,
-            message: 'Cloning note here would create cycle.'
-        });
-    }
-
-    const existing = await sql.getFirstValue('SELECT * FROM notes_tree WHERE note_id = ? AND parent_note_id = ?', [noteId, afterNote.parent_note_id]);
-
-    if (existing && !existing.is_deleted) {
-        return res.send({
-            success: false,
-            message: 'This note already exists in target parent note.'
-        });
-    }
-
-    await sql.doInTransaction(async () => {
-        // we don't change date_modified so other changes are prioritized in case of conflict
-        // also we would have to sync all those modified note trees otherwise hash checks would fail
-        await sql.execute("UPDATE notes_tree SET note_position = note_position + 1 WHERE parent_note_id = ? AND note_position > ? AND is_deleted = 0",
-            [afterNote.parent_note_id, afterNote.note_position]);
-
-        await sync_table.addNoteReorderingSync(afterNote.parent_note_id, sourceId);
-
-        const noteTree = {
-            note_tree_id: utils.newNoteTreeId(),
-            note_id: noteId,
-            parent_note_id: afterNote.parent_note_id,
-            note_position: afterNote.note_position + 1,
-            is_expanded: 0,
-            date_modified: utils.nowDate(),
-            is_deleted: 0
-        };
-
-        await sql.replace("notes_tree", noteTree);
-
-        await sync_table.addNoteTreeSync(noteTree.note_tree_id, sourceId);
-    });
-
-    res.send({
-        success: true
-    });
-});
-
-async function checkCycle(parentNoteId, childNoteId) {
-    if (parentNoteId === 'root') {
-        return true;
-    }
-
-    if (parentNoteId === childNoteId) {
-        return false;
-    }
-
-    const parentNoteIds = await sql.getFirstColumn("SELECT DISTINCT parent_note_id FROM notes_tree WHERE note_id = ?", [parentNoteId]);
-
-    for (const pid of parentNoteIds) {
-        if (!await checkCycle(pid, childNoteId)) {
-            return false;
-        }
-    }
-
-    return true;
-}
-
-router.put('/:noteTreeId/expanded/:expanded', auth.checkApiAuth, async (req, res, next) => {
-    const noteTreeId = req.params.noteTreeId;
-    const expanded = req.params.expanded;
-
-    await sql.doInTransaction(async () => {
-        await sql.execute("UPDATE notes_tree SET is_expanded = ? WHERE note_tree_id = ?", [expanded, noteTreeId]);
-
-        // we don't sync expanded attribute
-    });
-
-    res.send({});
-});
-
-module.exports = router;

routes/api/password.js

@@ -5,11 +5,12 @@ const router = express.Router();
 const sql = require('../../services/sql');
 const changePassword = require('../../services/change_password');
 const auth = require('../../services/auth');
+const wrap = require('express-promise-wrap').wrap;
 
-router.post('/change', auth.checkApiAuth, async (req, res, next) => {
+router.post('/change', auth.checkApiAuth, wrap(async (req, res, next) => {
     const result = await changePassword.changePassword(req.body['current_password'], req.body['new_password'], req);
 
     res.send(result);
-});
+}));
 
 module.exports = router;

routes/api/recent_changes.js

@@ -4,8 +4,9 @@ const express = require('express');
 const router = express.Router();
 const sql = require('../../services/sql');
 const auth = require('../../services/auth');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('/', auth.checkApiAuth, async (req, res, next) => {
+router.get('/', auth.checkApiAuth, wrap(async (req, res, next) => {
     const recentChanges = await sql.getAll(
         `SELECT 
             notes.is_deleted AS current_is_deleted,
@@ -19,6 +20,6 @@ router.get('/', auth.checkApiAuth, async (req, res, next) => {
         LIMIT 1000`);
 
     res.send(recentChanges);
-});
+}));
 
 module.exports = router;

routes/api/recent_notes.js

@@ -7,12 +7,13 @@ const auth = require('../../services/auth');
 const utils = require('../../services/utils');
 const sync_table = require('../../services/sync_table');
 const options = require('../../services/options');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('', auth.checkApiAuth, async (req, res, next) => {
+router.get('', auth.checkApiAuth, wrap(async (req, res, next) => {
     res.send(await getRecentNotes());
-});
+}));
 
-router.put('/:noteTreeId/:notePath', auth.checkApiAuth, async (req, res, next) => {
+router.put('/:noteTreeId/:notePath', auth.checkApiAuth, wrap(async (req, res, next) => {
     const noteTreeId = req.params.noteTreeId;
     const notePath = req.params.notePath;
     const sourceId = req.headers.source_id;
@@ -31,7 +32,7 @@ router.put('/:noteTreeId/:notePath', auth.checkApiAuth, async (req, res, next) =
     });
 
     res.send(await getRecentNotes());
-});
+}));
 
 async function getRecentNotes() {
     return await sql.getAll(`

routes/api/settings.js

@@ -5,24 +5,25 @@ const router = express.Router();
 const sql = require('../../services/sql');
 const options = require('../../services/options');
 const auth = require('../../services/auth');
+const wrap = require('express-promise-wrap').wrap;
 
 // options allowed to be updated directly in settings dialog
 const ALLOWED_OPTIONS = ['protected_session_timeout', 'history_snapshot_time_interval'];
 
-router.get('/all', auth.checkApiAuth, async (req, res, next) => {
+router.get('/all', auth.checkApiAuth, wrap(async (req, res, next) => {
     const settings = await sql.getMap("SELECT opt_name, opt_value FROM options");
 
     res.send(settings);
-});
+}));
 
-router.get('/', auth.checkApiAuth, async (req, res, next) => {
+router.get('/', auth.checkApiAuth, wrap(async (req, res, next) => {
     const settings = await sql.getMap("SELECT opt_name, opt_value FROM options WHERE opt_name IN ("
         + ALLOWED_OPTIONS.map(x => '?').join(",") + ")", ALLOWED_OPTIONS);
 
     res.send(settings);
-});
+}));
 
-router.post('/', auth.checkApiAuth, async (req, res, next) => {
+router.post('/', auth.checkApiAuth, wrap(async (req, res, next) => {
     const body = req.body;
     const sourceId = req.headers.source_id;
 
@@ -38,6 +39,6 @@ router.post('/', auth.checkApiAuth, async (req, res, next) => {
     else {
         res.send("not allowed option to set");
     }
-});
+}));
 
 module.exports = router;

routes/api/setup.js

@@ -8,8 +8,9 @@ const sql = require('../../services/sql');
 const utils = require('../../services/utils');
 const my_scrypt = require('../../services/my_scrypt');
 const password_encryption = require('../../services/password_encryption');
+const wrap = require('express-promise-wrap').wrap;
 
-router.post('', auth.checkAppNotInitialized, async (req, res, next) => {
+router.post('', auth.checkAppNotInitialized, wrap(async (req, res, next) => {
     const { username, password } = req.body;
 
     await sql.doInTransaction(async () => {
@@ -27,6 +28,6 @@ router.post('', auth.checkAppNotInitialized, async (req, res, next) => {
     sql.setDbReadyAsResolved();
 
     res.send({});
-});
+}));
 
 module.exports = router;

routes/api/sql.js

@@ -4,8 +4,9 @@ const express = require('express');
 const router = express.Router();
 const auth = require('../../services/auth');
 const sql = require('../../services/sql');
+const wrap = require('express-promise-wrap').wrap;
 
-router.post('/execute', auth.checkApiAuth, async (req, res, next) => {
+router.post('/execute', auth.checkApiAuth, wrap(async (req, res, next) => {
     const query = req.body.query;
 
     try {
@@ -20,6 +21,6 @@ router.post('/execute', auth.checkApiAuth, async (req, res, next) => {
             error: e.message
         });
     }
-});
+}));
 
 module.exports = router;

routes/api/sync.js

@@ -10,19 +10,20 @@ const sql = require('../../services/sql');
 const options = require('../../services/options');
 const content_hash = require('../../services/content_hash');
 const log = require('../../services/log');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('/check', auth.checkApiAuth, async (req, res, next) => {
+router.get('/check', auth.checkApiAuth, wrap(async (req, res, next) => {
     res.send({
         'hashes': await content_hash.getHashes(),
         'max_sync_id': await sql.getFirstValue('SELECT MAX(id) FROM sync')
     });
-});
+}));
 
-router.post('/now', auth.checkApiAuth, async (req, res, next) => {
+router.post('/now', auth.checkApiAuth, wrap(async (req, res, next) => {
     res.send(await sync.sync());
-});
+}));
 
-router.post('/fill-sync-rows', auth.checkApiAuth, async (req, res, next) => {
+router.post('/fill-sync-rows', auth.checkApiAuth, wrap(async (req, res, next) => {
     await sql.doInTransaction(async () => {
         await sync_table.fillAllSyncRows();
     });
@@ -30,9 +31,9 @@ router.post('/fill-sync-rows', auth.checkApiAuth, async (req, res, next) => {
     log.info("Sync rows have been filled.");
 
     res.send({});
-});
+}));
 
-router.post('/force-full-sync', auth.checkApiAuth, async (req, res, next) => {
+router.post('/force-full-sync', auth.checkApiAuth, wrap(async (req, res, next) => {
     await sql.doInTransaction(async () => {
         await options.setOption('last_synced_pull', 0);
         await options.setOption('last_synced_push', 0);
@@ -44,94 +45,160 @@ router.post('/force-full-sync', auth.checkApiAuth, async (req, res, next) => {
     sync.sync();
 
     res.send({});
-});
+}));
 
-router.get('/changed', auth.checkApiAuth, async (req, res, next) => {
+router.post('/force-note-sync/:noteId', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteId = req.params.noteId;
+
+    await sql.doInTransaction(async () => {
+        await sync_table.addNoteSync(noteId);
+
+        for (const noteTreeId of await sql.getFirstColumn("SELECT note_tree_id FROM notes_tree WHERE is_deleted = 0 AND note_id = ?", [noteId])) {
+            await sync_table.addNoteTreeSync(noteTreeId);
+            await sync_table.addRecentNoteSync(noteTreeId);
+        }
+
+        for (const noteHistoryId of await sql.getFirstColumn("SELECT note_history_id FROM notes_history WHERE note_id = ?", [noteId])) {
+            await sync_table.addNoteHistorySync(noteHistoryId);
+        }
+    });
+
+    log.info("Forcing note sync for " + noteId);
+
+    // not awaiting for the job to finish (will probably take a long time)
+    sync.sync();
+
+    res.send({});
+}));
+
+router.get('/changed', auth.checkApiAuth, wrap(async (req, res, next) => {
     const lastSyncId = parseInt(req.query.lastSyncId);
 
     res.send(await sql.getAll("SELECT * FROM sync WHERE id > ?", [lastSyncId]));
-});
+}));
 
-router.get('/notes/:noteId', auth.checkApiAuth, async (req, res, next) => {
+router.get('/notes/:noteId', auth.checkApiAuth, wrap(async (req, res, next) => {
     const noteId = req.params.noteId;
 
     res.send({
         entity: await sql.getFirst("SELECT * FROM notes WHERE note_id = ?", [noteId])
     });
-});
+}));
 
-router.get('/notes_tree/:noteTreeId', auth.checkApiAuth, async (req, res, next) => {
+router.get('/notes_tree/:noteTreeId', auth.checkApiAuth, wrap(async (req, res, next) => {
     const noteTreeId = req.params.noteTreeId;
 
     res.send(await sql.getFirst("SELECT * FROM notes_tree WHERE note_tree_id = ?", [noteTreeId]));
-});
+}));
 
-router.get('/notes_history/:noteHistoryId', auth.checkApiAuth, async (req, res, next) => {
+router.get('/notes_history/:noteHistoryId', auth.checkApiAuth, wrap(async (req, res, next) => {
     const noteHistoryId = req.params.noteHistoryId;
 
     res.send(await sql.getFirst("SELECT * FROM notes_history WHERE note_history_id = ?", [noteHistoryId]));
-});
+}));
 
-router.get('/options/:optName', auth.checkApiAuth, async (req, res, next) => {
+router.get('/options/:optName', auth.checkApiAuth, wrap(async (req, res, next) => {
     const optName = req.params.optName;
+    const opt = await sql.getFirst("SELECT * FROM options WHERE opt_name = ?", [optName]);
 
-    if (!options.SYNCED_OPTIONS.includes(optName)) {
+    if (!opt.is_synced) {
         res.send("This option can't be synced.");
     }
     else {
-        res.send(await sql.getFirst("SELECT * FROM options WHERE opt_name = ?", [optName]));
+        res.send(opt);
     }
-});
+}));
 
-router.get('/notes_reordering/:noteTreeParentId', auth.checkApiAuth, async (req, res, next) => {
+router.get('/notes_reordering/:noteTreeParentId', auth.checkApiAuth, wrap(async (req, res, next) => {
     const noteTreeParentId = req.params.noteTreeParentId;
 
     res.send({
         parent_note_id: noteTreeParentId,
-        ordering: await sql.getMap("SELECT note_tree_id, note_position FROM notes_tree WHERE parent_note_id = ?", [noteTreeParentId])
+        ordering: await sql.getMap("SELECT note_tree_id, note_position FROM notes_tree WHERE parent_note_id = ? AND is_deleted = 0", [noteTreeParentId])
     });
-});
+}));
 
-router.get('/recent_notes/:noteTreeId', auth.checkApiAuth, async (req, res, next) => {
+router.get('/recent_notes/:noteTreeId', auth.checkApiAuth, wrap(async (req, res, next) => {
     const noteTreeId = req.params.noteTreeId;
 
     res.send(await sql.getFirst("SELECT * FROM recent_notes WHERE note_tree_id = ?", [noteTreeId]));
-});
+}));
 
-router.put('/notes', auth.checkApiAuth, async (req, res, next) => {
+router.get('/images/:imageId', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const imageId = req.params.imageId;
+    const entity = await sql.getFirst("SELECT * FROM images WHERE image_id = ?", [imageId]);
+
+    if (entity && entity.data !== null) {
+        entity.data = entity.data.toString('base64');
+    }
+
+    res.send(entity);
+}));
+
+router.get('/notes_image/:noteImageId', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteImageId = req.params.noteImageId;
+
+    res.send(await sql.getFirst("SELECT * FROM notes_image WHERE note_image_id = ?", [noteImageId]));
+}));
+
+router.get('/attributes/:attributeId', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const attributeId = req.params.attributeId;
+
+    res.send(await sql.getFirst("SELECT * FROM attributes WHERE attribute_id = ?", [attributeId]));
+}));
+
+router.put('/notes', auth.checkApiAuth, wrap(async (req, res, next) => {
     await syncUpdate.updateNote(req.body.entity, req.body.sourceId);
 
     res.send({});
-});
+}));
 
-router.put('/notes_tree', auth.checkApiAuth, async (req, res, next) => {
+router.put('/notes_tree', auth.checkApiAuth, wrap(async (req, res, next) => {
     await syncUpdate.updateNoteTree(req.body.entity, req.body.sourceId);
 
     res.send({});
-});
+}));
 
-router.put('/notes_history', auth.checkApiAuth, async (req, res, next) => {
+router.put('/notes_history', auth.checkApiAuth, wrap(async (req, res, next) => {
     await syncUpdate.updateNoteHistory(req.body.entity, req.body.sourceId);
 
     res.send({});
-});
+}));
 
-router.put('/notes_reordering', auth.checkApiAuth, async (req, res, next) => {
+router.put('/notes_reordering', auth.checkApiAuth, wrap(async (req, res, next) => {
     await syncUpdate.updateNoteReordering(req.body.entity, req.body.sourceId);
 
     res.send({});
-});
+}));
 
-router.put('/options', auth.checkApiAuth, async (req, res, next) => {
+router.put('/options', auth.checkApiAuth, wrap(async (req, res, next) => {
     await syncUpdate.updateOptions(req.body.entity, req.body.sourceId);
 
     res.send({});
-});
+}));
 
-router.put('/recent_notes', auth.checkApiAuth, async (req, res, next) => {
+router.put('/recent_notes', auth.checkApiAuth, wrap(async (req, res, next) => {
     await syncUpdate.updateRecentNotes(req.body.entity, req.body.sourceId);
 
     res.send({});
-});
+}));
+
+router.put('/images', auth.checkApiAuth, wrap(async (req, res, next) => {
+    await syncUpdate.updateImage(req.body.entity, req.body.sourceId);
+
+    res.send({});
+}));
+
+router.put('/notes_image', auth.checkApiAuth, wrap(async (req, res, next) => {
+    await syncUpdate.updateNoteImage(req.body.entity, req.body.sourceId);
+
+    res.send({});
+}));
+
+router.put('/attributes', auth.checkApiAuth, wrap(async (req, res, next) => {
+    await syncUpdate.updateAttribute(req.body.entity, req.body.sourceId);
+
+    res.send({});
+}));
 
 module.exports = router;

routes/api/tree.js

@@ -8,18 +8,24 @@ const utils = require('../../services/utils');
 const auth = require('../../services/auth');
 const protected_session = require('../../services/protected_session');
 const data_encryption = require('../../services/data_encryption');
-const notes = require('../../services/notes');
 const sync_table = require('../../services/sync_table');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('/', auth.checkApiAuth, async (req, res, next) => {
-    const notes = await sql.getAll("SELECT "
-        + "notes_tree.*, "
-        + "notes.note_title, "
-        + "notes.is_protected "
-        + "FROM notes_tree "
-        + "JOIN notes ON notes.note_id = notes_tree.note_id "
-        + "WHERE notes.is_deleted = 0 AND notes_tree.is_deleted = 0 "
-        + "ORDER BY note_position");
+router.get('/', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const notes = await sql.getAll(`
+      SELECT 
+        notes_tree.*, 
+        notes.note_title, 
+        notes.is_protected
+      FROM 
+        notes_tree 
+      JOIN 
+        notes ON notes.note_id = notes_tree.note_id
+      WHERE 
+        notes.is_deleted = 0 
+        AND notes_tree.is_deleted = 0
+      ORDER BY 
+        note_position`);
 
     const dataKey = protected_session.getDataKey(req);
 
@@ -33,22 +39,9 @@ router.get('/', auth.checkApiAuth, async (req, res, next) => {
         notes: notes,
         start_note_path: await options.getOption('start_note_path')
     });
-});
+}));
 
-router.put('/:noteId/protect-sub-tree/:isProtected', auth.checkApiAuth, async (req, res, next) => {
-    const noteId = req.params.noteId;
-    const isProtected = !!parseInt(req.params.isProtected);
-    const dataKey = protected_session.getDataKey(req);
-    const sourceId = req.headers.source_id;
-
-    await sql.doInTransaction(async () => {
-        await notes.protectNoteRecursively(noteId, dataKey, isProtected, sourceId);
-    });
-
-    res.send({});
-});
-
-router.put('/:noteTreeId/set-prefix', auth.checkApiAuth, async (req, res, next) => {
+router.put('/:noteTreeId/set-prefix', auth.checkApiAuth, wrap(async (req, res, next) => {
     const noteTreeId = req.params.noteTreeId;
     const sourceId = req.headers.source_id;
     const prefix = utils.isEmptyOrWhitespace(req.body.prefix) ? null : req.body.prefix;
@@ -60,6 +53,6 @@ router.put('/:noteTreeId/set-prefix', auth.checkApiAuth, async (req, res, next)
     });
 
     res.send({});
-});
+}));
 
 module.exports = router;

routes/api/tree_changes.js

@@ -0,0 +1,125 @@
+"use strict";
+
+const express = require('express');
+const router = express.Router();
+const sql = require('../../services/sql');
+const auth = require('../../services/auth');
+const utils = require('../../services/utils');
+const sync_table = require('../../services/sync_table');
+const tree = require('../../services/tree');
+const notes = require('../../services/notes');
+const wrap = require('express-promise-wrap').wrap;
+
+/**
+ * Code in this file deals with moving and cloning note tree rows. Relationship between note and parent note is unique
+ * for not deleted note trees. There may be multiple deleted note-parent note relationships.
+ */
+
+router.put('/:noteTreeId/move-to/:parentNoteId', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteTreeId = req.params.noteTreeId;
+    const parentNoteId = req.params.parentNoteId;
+    const sourceId = req.headers.source_id;
+
+    const noteToMove = await tree.getNoteTree(noteTreeId);
+
+    if (!await tree.validateParentChild(res, parentNoteId, noteToMove.note_id, noteTreeId)) {
+        return;
+    }
+
+    const maxNotePos = await sql.getFirstValue('SELECT MAX(note_position) FROM notes_tree WHERE parent_note_id = ? AND is_deleted = 0', [parentNoteId]);
+    const newNotePos = maxNotePos === null ? 0 : maxNotePos + 1;
+
+    const now = utils.nowDate();
+
+    await sql.doInTransaction(async () => {
+        await sql.execute("UPDATE notes_tree SET parent_note_id = ?, note_position = ?, date_modified = ? WHERE note_tree_id = ?",
+            [parentNoteId, newNotePos, now, noteTreeId]);
+
+        await sync_table.addNoteTreeSync(noteTreeId, sourceId);
+    });
+
+    res.send({ success: true });
+}));
+
+router.put('/:noteTreeId/move-before/:beforeNoteTreeId', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteTreeId = req.params.noteTreeId;
+    const beforeNoteTreeId = req.params.beforeNoteTreeId;
+    const sourceId = req.headers.source_id;
+
+    const noteToMove = await tree.getNoteTree(noteTreeId);
+    const beforeNote = await tree.getNoteTree(beforeNoteTreeId);
+
+    if (!await tree.validateParentChild(res, beforeNote.parent_note_id, noteToMove.note_id, noteTreeId)) {
+        return;
+    }
+
+    await sql.doInTransaction(async () => {
+        // we don't change date_modified so other changes are prioritized in case of conflict
+        // also we would have to sync all those modified note trees otherwise hash checks would fail
+        await sql.execute("UPDATE notes_tree SET note_position = note_position + 1 WHERE parent_note_id = ? AND note_position >= ? AND is_deleted = 0",
+            [beforeNote.parent_note_id, beforeNote.note_position]);
+
+        await sync_table.addNoteReorderingSync(beforeNote.parent_note_id, sourceId);
+
+        const now = utils.nowDate();
+
+        await sql.execute("UPDATE notes_tree SET parent_note_id = ?, note_position = ?, date_modified = ? WHERE note_tree_id = ?",
+            [beforeNote.parent_note_id, beforeNote.note_position, now, noteTreeId]);
+
+        await sync_table.addNoteTreeSync(noteTreeId, sourceId);
+    });
+
+    res.send({ success: true });
+}));
+
+router.put('/:noteTreeId/move-after/:afterNoteTreeId', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteTreeId = req.params.noteTreeId;
+    const afterNoteTreeId = req.params.afterNoteTreeId;
+    const sourceId = req.headers.source_id;
+
+    const noteToMove = await tree.getNoteTree(noteTreeId);
+    const afterNote = await tree.getNoteTree(afterNoteTreeId);
+
+    if (!await tree.validateParentChild(res, afterNote.parent_note_id, noteToMove.note_id, noteTreeId)) {
+        return;
+    }
+
+    await sql.doInTransaction(async () => {
+        // we don't change date_modified so other changes are prioritized in case of conflict
+        // also we would have to sync all those modified note trees otherwise hash checks would fail
+        await sql.execute("UPDATE notes_tree SET note_position = note_position + 1 WHERE parent_note_id = ? AND note_position > ? AND is_deleted = 0",
+            [afterNote.parent_note_id, afterNote.note_position]);
+
+        await sync_table.addNoteReorderingSync(afterNote.parent_note_id, sourceId);
+
+        await sql.execute("UPDATE notes_tree SET parent_note_id = ?, note_position = ?, date_modified = ? WHERE note_tree_id = ?",
+            [afterNote.parent_note_id, afterNote.note_position + 1, utils.nowDate(), noteTreeId]);
+
+        await sync_table.addNoteTreeSync(noteTreeId, sourceId);
+    });
+
+    res.send({ success: true });
+}));
+
+router.put('/:noteTreeId/expanded/:expanded', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const noteTreeId = req.params.noteTreeId;
+    const expanded = req.params.expanded;
+
+    await sql.doInTransaction(async () => {
+        await sql.execute("UPDATE notes_tree SET is_expanded = ? WHERE note_tree_id = ?", [expanded, noteTreeId]);
+
+        // we don't sync expanded attribute
+    });
+
+    res.send({});
+}));
+
+router.delete('/:noteTreeId', auth.checkApiAuth, wrap(async (req, res, next) => {
+    await sql.doInTransaction(async () => {
+        await notes.deleteNote(req.params.noteTreeId, req.headers.source_id);
+    });
+
+    res.send({});
+}));
+
+module.exports = router;

routes/index.js

@@ -5,12 +5,13 @@ const router = express.Router();
 const auth = require('../services/auth');
 const source_id = require('../services/source_id');
 const sql = require('../services/sql');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('', auth.checkAuth, async (req, res, next) => {
+router.get('', auth.checkAuth, wrap(async (req, res, next) => {
     res.render('index', {
         sourceId: await source_id.generateSourceId(),
         maxSyncIdAtLoad: await sql.getFirstValue("SELECT MAX(id) FROM sync")
     });
-});
+}));
 
 module.exports = router;

routes/login.js

@@ -5,12 +5,13 @@ const router = express.Router();
 const utils = require('../services/utils');
 const options = require('../services/options');
 const my_scrypt = require('../services/my_scrypt');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('', (req, res, next) => {
+router.get('', wrap(async (req, res, next) => {
     res.render('login', { 'failedAuth': false });
-});
+}));
 
-router.post('', async (req, res, next) => {
+router.post('', wrap(async (req, res, next) => {
     const userName = await options.getOption('username');
 
     const guessedPassword = req.body.password;
@@ -32,7 +33,7 @@ router.post('', async (req, res, next) => {
     else {
         res.render('login', {'failedAuth': true});
     }
-});
+}));
 
 
 async function verifyPassword(guessed_password) {

routes/logout.js

@@ -2,14 +2,15 @@
 
 const express = require('express');
 const router = express.Router();
+const wrap = require('express-promise-wrap').wrap;
 
-router.post('', async (req, res, next) => {
+router.post('', wrap(async (req, res, next) => {
     req.session.regenerate(() => {
         req.session.loggedIn = false;
 
         res.redirect('/');
     });
 
-});
+}));
 
 module.exports = router;

routes/migration.js

@@ -3,9 +3,10 @@
 const express = require('express');
 const router = express.Router();
 const auth = require('../services/auth');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('', auth.checkAuthForMigrationPage, (req, res, next) => {
+router.get('', auth.checkAuthForMigrationPage, wrap(async (req, res, next) => {
     res.render('migration', {});
-});
+}));
 
 module.exports = router;

routes/routes.js

@@ -7,7 +7,8 @@ const setupRoute = require('./setup');
 // API routes
 const treeApiRoute = require('./api/tree');
 const notesApiRoute = require('./api/notes');
-const notesMoveApiRoute = require('./api/notes_move');
+const treeChangesApiRoute = require('./api/tree_changes');
+const cloningApiRoute = require('./api/cloning');
 const noteHistoryApiRoute = require('./api/note_history');
 const recentChangesApiRoute = require('./api/recent_changes');
 const settingsApiRoute = require('./api/settings');
@@ -24,6 +25,8 @@ const setupApiRoute = require('./api/setup');
 const sqlRoute = require('./api/sql');
 const anonymizationRoute = require('./api/anonymization');
 const cleanupRoute = require('./api/cleanup');
+const imageRoute = require('./api/image');
+const attributesRoute = require('./api/attributes');
 
 function register(app) {
     app.use('/', indexRoute);
@@ -34,7 +37,9 @@ function register(app) {
 
     app.use('/api/tree', treeApiRoute);
     app.use('/api/notes', notesApiRoute);
-    app.use('/api/notes', notesMoveApiRoute);
+    app.use('/api/tree', treeChangesApiRoute);
+    app.use('/api/notes', cloningApiRoute);
+    app.use('/api/notes', attributesRoute);
     app.use('/api/notes-history', noteHistoryApiRoute);
     app.use('/api/recent-changes', recentChangesApiRoute);
     app.use('/api/settings', settingsApiRoute);
@@ -51,6 +56,7 @@ function register(app) {
     app.use('/api/sql', sqlRoute);
     app.use('/api/anonymization', anonymizationRoute);
     app.use('/api/cleanup', cleanupRoute);
+    app.use('/api/images', imageRoute);
 }
 
 module.exports = {

routes/setup.js

@@ -3,9 +3,10 @@
 const express = require('express');
 const router = express.Router();
 const auth = require('../services/auth');
+const wrap = require('express-promise-wrap').wrap;
 
-router.get('', auth.checkAppNotInitialized, (req, res, next) => {
+router.get('', auth.checkAppNotInitialized, wrap(async (req, res, next) => {
     res.render('setup', {});
-});
+}));
 
 module.exports = router;

services/app_info.js

@@ -3,7 +3,7 @@
 const build = require('./build');
 const packageJson = require('../package');
 
-const APP_DB_VERSION = 60;
+const APP_DB_VERSION = 67;
 
 module.exports = {
     app_version: packageJson.version,

services/attributes.js

@@ -0,0 +1,31 @@
+"use strict";
+
+const sql = require('./sql');
+const utils = require('./utils');
+const sync_table = require('./sync_table');
+
+async function getNoteIdWithAttribute(name, value) {
+    return await sql.getFirstValue(`SELECT notes.note_id FROM notes JOIN attributes USING(note_id) 
+          WHERE notes.is_deleted = 0 AND attributes.name = ? AND attributes.value = ?`, [name, value]);
+}
+
+async function createAttribute(noteId, name, value = null, sourceId = null) {
+    const now = utils.nowDate();
+    const attributeId = utils.newAttributeId();
+
+    await sql.insert("attributes", {
+        attribute_id: attributeId,
+        note_id: noteId,
+        name: name,
+        value: value,
+        date_modified: now,
+        date_created: now
+    });
+
+    await sync_table.addAttributeSync(attributeId, sourceId);
+}
+
+module.exports = {
+    getNoteIdWithAttribute,
+    createAttribute
+};

services/auth.js

@@ -3,12 +3,9 @@
 const migration = require('./migration');
 const sql = require('./sql');
 const utils = require('./utils');
-const options = require('./options');
 
 async function checkAuth(req, res, next) {
-    const username = await options.getOption('username');
-
-    if (!username) {
+    if (!await sql.isUserInitialized()) {
         res.redirect("setup");
     }
     else if (!req.session.loggedIn && !utils.isElectron()) {
@@ -31,6 +28,20 @@ async function checkAuthForMigrationPage(req, res, next) {
     }
 }
 
+// for electron things which need network stuff
+// currently we're doing that for file upload because handling form data seems to be difficult
+async function checkApiAuthOrElectron(req, res, next) {
+    if (!req.session.loggedIn && !utils.isElectron()) {
+        res.status(401).send("Not authorized");
+    }
+    else if (await sql.isDbUpToDate()) {
+        next();
+    }
+    else {
+        res.status(409).send("Mismatched app versions"); // need better response than that
+    }
+}
+
 async function checkApiAuth(req, res, next) {
     if (!req.session.loggedIn) {
         res.status(401).send("Not authorized");
@@ -53,9 +64,7 @@ async function checkApiAuthForMigrationPage(req, res, next) {
 }
 
 async function checkAppNotInitialized(req, res, next) {
-    const username = await options.getOption('username');
-
-    if (username) {
+    if (await sql.isUserInitialized()) {
         res.status(400).send("App already initialized.");
     }
     else {
@@ -68,5 +77,6 @@ module.exports = {
     checkAuthForMigrationPage,
     checkApiAuth,
     checkApiAuthForMigrationPage,
-    checkAppNotInitialized
+    checkAppNotInitialized,
+    checkApiAuthOrElectron
 };

services/backup.js

@@ -6,6 +6,7 @@ const fs = require('fs-extra');
 const dataDir = require('./data_dir');
 const log = require('./log');
 const sql = require('./sql');
+const sync_mutex = require('./sync_mutex');
 
 async function regularBackup() {
     const now = new Date();
@@ -21,16 +22,20 @@ async function regularBackup() {
 }
 
 async function backupNow() {
-    const now = utils.nowDate();
+    // we don't want to backup DB in the middle of sync with potentially inconsistent DB state
 
-    const backupFile = dataDir.BACKUP_DIR + "/" + "backup-" + utils.getDateTimeForFile() + ".db";
+    await sync_mutex.doExclusively(async () => {
+        const now = utils.nowDate();
 
-    fs.copySync(dataDir.DOCUMENT_PATH, backupFile);
+        const backupFile = dataDir.BACKUP_DIR + "/" + "backup-" + utils.getDateTimeForFile() + ".db";
 
-    log.info("Created backup at " + backupFile);
+        fs.copySync(dataDir.DOCUMENT_PATH, backupFile);
 
-    await sql.doInTransaction(async () => {
-        await options.setOption('last_backup_date', now);
+        log.info("Created backup at " + backupFile);
+
+        await sql.doInTransaction(async () => {
+            await options.setOption('last_backup_date', now);
+        });
     });
 }
 

services/build.js

@@ -1 +1 @@
-module.exports = { build_date:"2017-12-26T19:57:44-05:00", build_revision: "baab7454626b154b43144c1a07e1962ab083bde2" };
+module.exports = { build_date:"2018-01-14T22:08:42-05:00", build_revision: "d30a57d3880ed7474faa5206880433db2832589d" };

services/config.js

@@ -4,8 +4,9 @@ const ini = require('ini');
 const fs = require('fs');
 const dataDir = require('./data_dir');
 const path = require('path');
+const resource_dir = require('./resource_dir');
 
-const configSampleFilePath = path.resolve(__dirname, "..", "config-sample.ini");
+const configSampleFilePath = path.resolve(resource_dir.RESOURCE_DIR, "config-sample.ini");
 
 const configFilePath = dataDir.TRILIUM_DATA_DIR + '/config.ini';
 

services/consistency_checks.js

@@ -3,8 +3,12 @@
 const sql = require('./sql');
 const log = require('./log');
 const messaging = require('./messaging');
+const sync_mutex = require('./sync_mutex');
+const utils = require('./utils');
 
 async function runCheck(query, errorText, errorList) {
+    utils.assertArguments(query, errorText, errorList);
+
     const result = await sql.getFirstColumn(query);
 
     if (result.length > 0) {
@@ -17,6 +21,46 @@ async function runCheck(query, errorText, errorList) {
     }
 }
 
+async function checkTreeCycles(errorList) {
+    const childToParents = {};
+    const rows = await sql.getAll("SELECT note_id, parent_note_id FROM notes_tree WHERE is_deleted = 0");
+
+    for (const row of rows) {
+        const childNoteId = row.note_id;
+        const parentNoteId = row.parent_note_id;
+
+        if (!childToParents[childNoteId]) {
+            childToParents[childNoteId] = [];
+        }
+
+        childToParents[childNoteId].push(parentNoteId);
+    }
+
+    function checkTreeCycle(noteId, path, errorList) {
+        if (noteId === 'root') {
+            return;
+        }
+
+        for (const parentNoteId of childToParents[noteId]) {
+            if (path.includes(parentNoteId)) {
+                errorList.push(`Tree cycle detected at parent-child relationship: ${parentNoteId} - ${noteId}, whole path: ${path}`);
+            }
+            else {
+                const newPath = path.slice();
+                newPath.push(noteId);
+
+                checkTreeCycle(parentNoteId, newPath, errorList);
+            }
+        }
+    }
+
+    const noteIds = Object.keys(childToParents);
+
+    for (const noteId of noteIds) {
+        checkTreeCycle(noteId, [], errorList);
+    }
+}
+
 async function runSyncRowChecks(table, key, errorList) {
     await runCheck(`
         SELECT 
@@ -40,7 +84,7 @@ async function runSyncRowChecks(table, key, errorList) {
         `Missing ${table} records for existing sync rows`, errorList);
 }
 
-async function runChecks() {
+async function runAllChecks() {
     const errorList = [];
 
     await runCheck(`
@@ -77,15 +121,15 @@ async function runChecks() {
 
     await runCheck(`
           SELECT 
-            child.note_id 
+            child.note_tree_id
           FROM 
-            notes_tree 
-            JOIN notes AS child ON child.note_id = notes_tree.note_id 
-            JOIN notes AS parent ON notes_tree.parent_note_id = parent.note_id 
+            notes_tree AS child
           WHERE 
-            parent.is_deleted = 1 
-            AND child.is_deleted = 0`,
-        "Parent note is deleted but child note is not for these child note IDs", errorList);
+            child.is_deleted = 0
+            AND child.parent_note_id != 'root'
+            AND (SELECT COUNT(*) FROM notes_tree AS parent WHERE parent.note_id = child.parent_note_id 
+                                                                 AND parent.is_deleted = 0) = 0`,
+        "All parent note trees are deleted but child note tree is not for these child note tree IDs", errorList);
 
     // we do extra JOIN to eliminate orphan notes without note tree (which are reported separately)
     await runCheck(`
@@ -97,7 +141,7 @@ async function runChecks() {
           WHERE
             (SELECT COUNT(*) FROM notes_tree WHERE notes.note_id = notes_tree.note_id AND notes_tree.is_deleted = 0) = 0
             AND notes.is_deleted = 0
-    `, );
+    `, 'No undeleted note trees for note IDs', errorList);
 
     await runCheck(`
           SELECT 
@@ -119,16 +163,76 @@ async function runChecks() {
             notes.note_id IS NULL`,
         "Missing notes records for following note history ID > note ID", errorList);
 
+    await runCheck(`
+          SELECT 
+            notes_tree.parent_note_id || ' > ' || notes_tree.note_id 
+          FROM 
+            notes_tree 
+          WHERE 
+            notes_tree.is_deleted = 0
+          GROUP BY 
+            notes_tree.parent_note_id,
+            notes_tree.note_id
+          HAVING 
+            COUNT(*) > 1`,
+        "Duplicate undeleted parent note <-> note relationship - parent note ID > note ID", errorList);
+
+    await runCheck(`
+          SELECT 
+            images.image_id
+          FROM 
+            images
+            LEFT JOIN notes_image ON notes_image.image_id = images.image_id
+          WHERE 
+            notes_image.note_image_id IS NULL`,
+        "Image with no note relation", errorList);
+
+    await runCheck(`
+          SELECT 
+            notes_image.note_image_id
+          FROM 
+            notes_image
+            JOIN images USING(image_id)
+          WHERE 
+            notes_image.is_deleted = 0
+            AND images.is_deleted = 1`,
+        "Note image is not deleted while image is deleted for note_image_id", errorList);
+
     await runSyncRowChecks("notes", "note_id", errorList);
     await runSyncRowChecks("notes_history", "note_history_id", errorList);
     await runSyncRowChecks("notes_tree", "note_tree_id", errorList);
     await runSyncRowChecks("recent_notes", "note_tree_id", errorList);
+    await runSyncRowChecks("images", "image_id", errorList);
+    await runSyncRowChecks("notes_image", "note_image_id", errorList);
+
+    if (errorList.length === 0) {
+        // we run this only if basic checks passed since this assumes basic data consistency
+
+        await checkTreeCycles(errorList);
+    }
+
+    return errorList;
+}
+
+async function runChecks() {
+    let errorList;
+    let elapsedTimeMs;
+
+    await sync_mutex.doExclusively(async () => {
+        const startTime = new Date();
+
+        errorList = await runAllChecks();
+
+        elapsedTimeMs = new Date().getTime() - startTime.getTime();
+    });
 
     if (errorList.length > 0) {
+        log.info(`Consistency checks failed (took ${elapsedTimeMs}ms) with these errors: ` + JSON.stringify(errorList));
+
         messaging.sendMessageToAllClients({type: 'consistency-checks-failed'});
     }
     else {
-        log.info("All consistency checks passed.");
+        log.info(`All consistency checks passed (took ${elapsedTimeMs}ms)`);
     }
 }
 

services/content_hash.js

@@ -1,6 +1,7 @@
 const sql = require('./sql');
 const utils = require('./utils');
 const options = require('./options');
+const log = require('./log');
 
 function getHash(rows) {
     let hash = '';
@@ -13,55 +14,91 @@ function getHash(rows) {
 }
 
 async function getHashes() {
-    const optionsQuestionMarks = Array(options.SYNCED_OPTIONS.length).fill('?').join(',');
+    const startTime = new Date();
 
-    return {
-        notes: getHash(await sql.getAll(`SELECT
-                                                  note_id,
-                                                  note_title,
-                                                  note_text,
-                                                  date_modified,
-                                                  is_protected,
-                                                  is_deleted
-                                                FROM notes
-                                                ORDER BY note_id`)),
+    const hashes = {
+        notes: getHash(await sql.getAll(`
+            SELECT
+              note_id,
+              note_title,
+              note_text,
+              date_modified,
+              is_protected,
+              is_deleted
+            FROM notes
+            ORDER BY note_id`)),
 
-        notes_tree: getHash(await sql.getAll(`SELECT
-                                                       note_tree_id,
-                                                       note_id,
-                                                       parent_note_id,
-                                                       note_position,
-                                                       date_modified,
-                                                       is_deleted,
-                                                       prefix
-                                                     FROM notes_tree
-                                                     ORDER BY note_tree_id`)),
+        notes_tree: getHash(await sql.getAll(`
+            SELECT
+               note_tree_id,
+               note_id,
+               parent_note_id,
+               note_position,
+               date_modified,
+               is_deleted,
+               prefix
+             FROM notes_tree
+             ORDER BY note_tree_id`)),
 
-        notes_history: getHash(await sql.getAll(`SELECT
-                                                          note_history_id,
-                                                          note_id,
-                                                          note_title,
-                                                          note_text,
-                                                          date_modified_from,
-                                                          date_modified_to
-                                                        FROM notes_history
-                                                        ORDER BY note_history_id`)),
+        notes_history: getHash(await sql.getAll(`
+            SELECT
+              note_history_id,
+              note_id,
+              note_title,
+              note_text,
+              date_modified_from,
+              date_modified_to
+            FROM notes_history
+            ORDER BY note_history_id`)),
 
-        recent_notes: getHash(await sql.getAll(`SELECT
-                                                         note_tree_id,
-                                                         note_path,
-                                                         date_accessed,
-                                                         is_deleted
-                                                       FROM recent_notes
-                                                       ORDER BY note_path`)),
+        recent_notes: getHash(await sql.getAll(`
+           SELECT
+             note_tree_id,
+             note_path,
+             date_accessed,
+             is_deleted
+           FROM recent_notes
+           ORDER BY note_path`)),
 
-        options: getHash(await sql.getAll(`SELECT 
-                                                    opt_name,
-                                                    opt_value 
-                                                  FROM options 
-                                                  WHERE opt_name IN (${optionsQuestionMarks}) 
-                                                  ORDER BY opt_name`, options.SYNCED_OPTIONS))
+        options: getHash(await sql.getAll(`
+           SELECT 
+             opt_name,
+             opt_value 
+           FROM options 
+           WHERE is_synced = 1
+           ORDER BY opt_name`)),
+
+        // we don't include image data on purpose because they are quite large, checksum is good enough
+        // to represent the data anyway
+        images: getHash(await sql.getAll(`
+          SELECT 
+            image_id,
+            format,
+            checksum,
+            name,
+            is_deleted,
+            date_modified,
+            date_created
+          FROM images  
+          ORDER BY image_id`)),
+
+        attributes: getHash(await sql.getAll(`
+          SELECT 
+            attribute_id,
+            note_id
+            name,
+            value
+            date_modified,
+            date_created
+          FROM attributes  
+          ORDER BY attribute_id`))
     };
+
+    const elapseTimeMs = new Date().getTime() - startTime.getTime();
+
+    log.info(`Content hash computation took ${elapseTimeMs}ms`);
+
+    return hashes;
 }
 
 module.exports = {

services/data_encryption.js

@@ -1,6 +1,7 @@
 "use strict";
 
 const crypto = require('crypto');
+const log = require('./log');
 
 function arraysIdentical(a, b) {
     let i = a.length;
@@ -72,7 +73,15 @@ function decrypt(key, iv, cipherText) {
 function decryptString(dataKey, iv, cipherText) {
     const buffer = decrypt(dataKey, iv, cipherText);
 
-    return buffer.toString('utf-8');
+    const str = buffer.toString('utf-8');
+
+    if (str === 'false') {
+        log.error("Could not decrypt string. Buffer: " + buffer);
+
+        throw new Error("Could not decrypt string.");
+    }
+
+    return str;
 }
 
 function noteTitleIv(iv) {

services/messaging.js

@@ -54,6 +54,8 @@ async function sendMessage(client, message) {
 async function sendMessageToAllClients(message) {
     const jsonStr = JSON.stringify(message);
 
+    log.info("Sending message to all clients: " + jsonStr);
+
     webSocketServer.clients.forEach(function each(client) {
         if (client.readyState === WebSocket.OPEN) {
             client.send(jsonStr);

services/migration.js

@@ -3,14 +3,7 @@ const sql = require('./sql');
 const options = require('./options');
 const fs = require('fs-extra');
 const log = require('./log');
-const path = require('path');
-
-const MIGRATIONS_DIR = path.resolve(__dirname, "..", "migrations");
-
-if (!fs.existsSync(MIGRATIONS_DIR)) {
-    log.error("Could not find migration directory: " + MIGRATIONS_DIR);
-    process.exit(1);
-}
+const resource_dir = require('./resource_dir');
 
 async function migrate() {
     const migrations = [];
@@ -20,7 +13,7 @@ async function migrate() {
 
     const currentDbVersion = parseInt(await options.getOption('db_version'));
 
-    fs.readdirSync(MIGRATIONS_DIR).forEach(file => {
+    fs.readdirSync(resource_dir.MIGRATIONS_DIR).forEach(file => {
         const match = file.match(/([0-9]{4})__([a-zA-Z0-9_ ]+)\.(sql|js)/);
 
         if (match) {
@@ -53,7 +46,7 @@ async function migrate() {
 
             await sql.doInTransaction(async () => {
                 if (mig.type === 'sql') {
-                    const migrationSql = fs.readFileSync(MIGRATIONS_DIR + "/" + mig.file).toString('utf8');
+                    const migrationSql = fs.readFileSync(resource_dir.MIGRATIONS_DIR + "/" + mig.file).toString('utf8');
 
                     console.log("Migration with SQL script: " + migrationSql);
 
@@ -62,7 +55,7 @@ async function migrate() {
                 else if (mig.type === 'js') {
                     console.log("Migration with JS module");
 
-                    const migrationModule = require("../" + MIGRATIONS_DIR + "/" + mig.file);
+                    const migrationModule = require("../" + resource_dir.MIGRATIONS_DIR + "/" + mig.file);
                     await migrationModule(db);
                 }
                 else {

services/notes.js

@@ -37,7 +37,7 @@ async function createNewNote(parentNoteId, note, sourceId) {
         await sql.insert("notes", {
             note_id: noteId,
             note_title: note.note_title,
-            note_text: '',
+            note_text: note.note_text ? note.note_text : '',
             date_created: now,
             date_modified: now,
             is_protected: note.is_protected
@@ -74,7 +74,7 @@ async function protectNoteRecursively(noteId, dataKey, protect, sourceId) {
 
     await protectNote(note, dataKey, protect, sourceId);
 
-    const children = await sql.getFirstColumn("SELECT note_id FROM notes_tree WHERE parent_note_id = ?", [noteId]);
+    const children = await sql.getFirstColumn("SELECT note_id FROM notes_tree WHERE parent_note_id = ? AND is_deleted = 0", [noteId]);
 
     for (const childNoteId of children) {
         await protectNoteRecursively(childNoteId, dataKey, protect, sourceId);
@@ -135,6 +135,76 @@ async function protectNoteHistory(noteId, dataKey, protect, sourceId) {
     }
 }
 
+async function saveNoteHistory(noteId, dataKey, sourceId, nowStr) {
+    const oldNote = await sql.getFirst("SELECT * FROM notes WHERE note_id = ?", [noteId]);
+
+    if (oldNote.is_protected) {
+        decryptNote(oldNote, dataKey);
+    }
+
+    const newNoteHistoryId = utils.newNoteHistoryId();
+
+    await sql.insert('notes_history', {
+        note_history_id: newNoteHistoryId,
+        note_id: noteId,
+        // title and text should be decrypted now
+        note_title: oldNote.note_title,
+        note_text: oldNote.note_text,
+        is_protected: 0, // will be fixed in the protectNoteHistory() call
+        date_modified_from: oldNote.date_modified,
+        date_modified_to: nowStr
+    });
+
+    await sync_table.addNoteHistorySync(newNoteHistoryId, sourceId);
+}
+
+async function saveNoteImages(noteId, noteText, sourceId) {
+    const existingNoteImages = await sql.getAll("SELECT * FROM notes_image WHERE note_id = ?", [noteId]);
+    const foundImageIds = [];
+    const now = utils.nowDate();
+    const re = /src="\/api\/images\/([a-zA-Z0-9]+)\//g;
+    let match;
+
+    while (match = re.exec(noteText)) {
+        const imageId = match[1];
+        const existingNoteImage = existingNoteImages.find(ni => ni.image_id === imageId);
+
+        if (!existingNoteImage) {
+            const noteImageId = utils.newNoteImageId();
+
+            await sql.insert("notes_image", {
+                note_image_id: noteImageId,
+                note_id: noteId,
+                image_id: imageId,
+                is_deleted: 0,
+                date_modified: now,
+                date_created: now
+            });
+
+            await sync_table.addNoteImageSync(noteImageId, sourceId);
+        }
+        else if (existingNoteImage.is_deleted) {
+            await sql.execute("UPDATE notes_image SET is_deleted = 0, date_modified = ? WHERE note_image_id = ?",
+                [now, existingNoteImage.note_image_id]);
+
+            await sync_table.addNoteImageSync(existingNoteImage.note_image_id, sourceId);
+        }
+        // else we don't need to do anything
+
+        foundImageIds.push(imageId);
+    }
+
+    // marking note images as deleted if they are not present on the page anymore
+    const unusedNoteImages = existingNoteImages.filter(ni => !foundImageIds.includes(ni.image_id));
+
+    for (const unusedNoteImage of unusedNoteImages) {
+        await sql.execute("UPDATE notes_image SET is_deleted = 1, date_modified = ? WHERE note_image_id = ?",
+            [now, unusedNoteImage.note_image_id]);
+
+        await sync_table.addNoteImageSync(unusedNoteImage.note_image_id, sourceId);
+    }
+}
+
 async function updateNote(noteId, newNote, dataKey, sourceId) {
     if (newNote.detail.is_protected) {
         await encryptNote(newNote, dataKey);
@@ -154,28 +224,11 @@ async function updateNote(noteId, newNote, dataKey, sourceId) {
         const msSinceDateCreated = now.getTime() - utils.parseDate(newNote.detail.date_created).getTime();
 
         if (!existingNoteHistoryId && msSinceDateCreated >= historySnapshotTimeInterval * 1000) {
-            const oldNote = await sql.getFirst("SELECT * FROM notes WHERE note_id = ?", [noteId]);
-
-            if (oldNote.is_protected) {
-                decryptNote(oldNote, dataKey);
-            }
-
-            const newNoteHistoryId = utils.newNoteHistoryId();
-
-            await sql.insert('notes_history', {
-                note_history_id: newNoteHistoryId,
-                note_id: noteId,
-                // title and text should be decrypted now
-                note_title: oldNote.note_title,
-                note_text: oldNote.note_text,
-                is_protected: 0, // will be fixed in the protectNoteHistory() call
-                date_modified_from: oldNote.date_modified,
-                date_modified_to: nowStr
-            });
-
-            await sync_table.addNoteHistorySync(newNoteHistoryId, sourceId);
+            await saveNoteHistory(noteId, dataKey, sourceId, nowStr);
         }
 
+        await saveNoteImages(noteId, newNote.detail.note_text, sourceId);
+
         await protectNoteHistory(noteId, dataKey, newNote.detail.is_protected);
 
         await sql.execute("UPDATE notes SET note_title = ?, note_text = ?, is_protected = ?, date_modified = ? WHERE note_id = ?", [
@@ -190,6 +243,12 @@ async function updateNote(noteId, newNote, dataKey, sourceId) {
 }
 
 async function deleteNote(noteTreeId, sourceId) {
+    const noteTree = await sql.getFirstOrNull("SELECT * FROM notes_tree WHERE note_tree_id = ?", [noteTreeId]);
+
+    if (!noteTree || noteTree.is_deleted === 1) {
+        return;
+    }
+
     const now = utils.nowDate();
 
     await sql.execute("UPDATE notes_tree SET is_deleted = 1, date_modified = ? WHERE note_tree_id = ?", [now, noteTreeId]);

services/options.js

@@ -3,12 +3,12 @@ const utils = require('./utils');
 const sync_table = require('./sync_table');
 const app_info = require('./app_info');
 
-const SYNCED_OPTIONS = [ 'username', 'password_verification_hash', 'password_verification_salt',
-    'password_derived_key_salt', 'encrypted_data_key', 'encrypted_data_key_iv',
-    'protected_session_timeout', 'history_snapshot_time_interval' ];
+async function getOptionOrNull(optName) {
+    return await sql.getFirstOrNull("SELECT opt_value FROM options WHERE opt_name = ?", [optName]);
+}
 
 async function getOption(optName) {
-    const row = await sql.getFirstOrNull("SELECT opt_value FROM options WHERE opt_name = ?", [optName]);
+    const row = await getOptionOrNull(optName);
 
     if (!row) {
         throw new Error("Option " + optName + " doesn't exist");
@@ -17,43 +17,59 @@ async function getOption(optName) {
     return row['opt_value'];
 }
 
-async function setOption(optName, optValue, sourceId) {
-    if (SYNCED_OPTIONS.includes(optName)) {
+async function setOption(optName, optValue, sourceId = null) {
+    const opt = await sql.getFirst("SELECT * FROM options WHERE opt_name = ?", [optName]);
+
+    if (!opt) {
+        throw new Error(`Option ${optName} doesn't exist`);
+    }
+
+    if (opt.is_synced) {
         await sync_table.addOptionsSync(optName, sourceId);
     }
 
-    await sql.replace("options", {
+    await sql.execute("UPDATE options SET opt_value = ?, date_modified = ? WHERE opt_name = ?",
+        [optValue, utils.nowDate(), optName]);
+}
+
+async function createOption(optName, optValue, isSynced, sourceId = null) {
+    await sql.insert("options", {
         opt_name: optName,
         opt_value: optValue,
+        is_synced: isSynced,
         date_modified: utils.nowDate()
     });
+
+    if (isSynced) {
+        await sync_table.addOptionsSync(optName, sourceId);
+    }
 }
 
 async function initOptions(startNotePath) {
-    await setOption('document_id', utils.randomSecureToken(16));
-    await setOption('document_secret', utils.randomSecureToken(16));
+    await createOption('document_id', utils.randomSecureToken(16), false);
+    await createOption('document_secret', utils.randomSecureToken(16), false);
 
-    await setOption('username', '');
-    await setOption('password_verification_hash', '');
-    await setOption('password_verification_salt', '');
-    await setOption('password_derived_key_salt', '');
-    await setOption('encrypted_data_key', '');
-    await setOption('encrypted_data_key_iv', '');
+    await createOption('username', '', true);
+    await createOption('password_verification_hash', '', true);
+    await createOption('password_verification_salt', '', true);
+    await createOption('password_derived_key_salt', '', true);
+    await createOption('encrypted_data_key', '', true);
+    await createOption('encrypted_data_key_iv', '', true);
 
-    await setOption('start_note_path', startNotePath);
-    await setOption('protected_session_timeout', 600);
-    await setOption('history_snapshot_time_interval', 600);
-    await setOption('last_backup_date', utils.nowDate());
-    await setOption('db_version', app_info.db_version);
+    await createOption('start_note_path', startNotePath, false);
+    await createOption('protected_session_timeout', 600, true);
+    await createOption('history_snapshot_time_interval', 600, true);
+    await createOption('last_backup_date', utils.nowDate(), false);
+    await createOption('db_version', app_info.db_version, false);
 
-    await setOption('last_synced_pull', app_info.db_version);
-    await setOption('last_synced_push', 0);
-    await setOption('last_synced_push', 0);
+    await createOption('last_synced_pull', app_info.db_version, false);
+    await createOption('last_synced_push', 0, false);
 }
 
 module.exports = {
     getOption,
+    getOptionOrNull,
     setOption,
     initOptions,
-    SYNCED_OPTIONS
+    createOption
 };

services/resource_dir.js

@@ -0,0 +1,25 @@
+const log = require('./log');
+const path = require('path');
+const fs = require('fs');
+
+const RESOURCE_DIR = path.resolve(__dirname, "..");
+
+const MIGRATIONS_DIR = path.resolve(RESOURCE_DIR, "migrations");
+
+if (!fs.existsSync(MIGRATIONS_DIR)) {
+    log.error("Could not find migration directory: " + MIGRATIONS_DIR);
+    process.exit(1);
+}
+
+const DB_INIT_DIR = path.resolve(RESOURCE_DIR, "db");
+
+if (!fs.existsSync(DB_INIT_DIR)) {
+    log.error("Could not find DB initialization directory: " + DB_INIT_DIR);
+    process.exit(1);
+}
+
+module.exports = {
+    RESOURCE_DIR,
+    MIGRATIONS_DIR,
+    DB_INIT_DIR
+};

services/sql.js

@@ -4,8 +4,8 @@ const log = require('./log');
 const dataDir = require('./data_dir');
 const fs = require('fs');
 const sqlite = require('sqlite');
-const utils = require('./utils');
 const app_info = require('./app_info');
+const resource_dir = require('./resource_dir');
 
 async function createConnection() {
     return await sqlite.open(dataDir.DOCUMENT_PATH, {Promise});
@@ -28,18 +28,22 @@ const dbReady = new Promise((resolve, reject) => {
         if (tableResults.length !== 1) {
             log.info("Connected to db, but schema doesn't exist. Initializing schema ...");
 
-            const schema = fs.readFileSync('db/schema.sql', 'UTF-8');
-            const notesSql = fs.readFileSync('db/main_notes.sql', 'UTF-8');
-            const notesTreeSql = fs.readFileSync('db/main_notes_tree.sql', 'UTF-8');
+            const schema = fs.readFileSync(resource_dir.DB_INIT_DIR + '/schema.sql', 'UTF-8');
+            const notesSql = fs.readFileSync(resource_dir.DB_INIT_DIR + '/main_notes.sql', 'UTF-8');
+            const notesTreeSql = fs.readFileSync(resource_dir.DB_INIT_DIR + '/main_notes_tree.sql', 'UTF-8');
+            const imagesSql = fs.readFileSync(resource_dir.DB_INIT_DIR + '/main_images.sql', 'UTF-8');
+            const notesImageSql = fs.readFileSync(resource_dir.DB_INIT_DIR + '/main_notes_image.sql', 'UTF-8');
 
             await doInTransaction(async () => {
                 await executeScript(schema);
                 await executeScript(notesSql);
                 await executeScript(notesTreeSql);
+                await executeScript(imagesSql);
+                await executeScript(notesImageSql);
 
-                const noteId = await getFirstValue("SELECT note_id FROM notes_tree WHERE parent_note_id = 'root' ORDER BY note_position");
+                const startNoteId = await getFirstValue("SELECT note_id FROM notes_tree WHERE parent_note_id = 'root' AND is_deleted = 0 ORDER BY note_position");
 
-                await require('./options').initOptions(noteId);
+                await require('./options').initOptions(startNoteId);
                 await require('./sync_table').fillAllSyncRows();
             });
 
@@ -49,9 +53,7 @@ const dbReady = new Promise((resolve, reject) => {
             // the database
         }
         else {
-            const username = await getFirstValue("SELECT opt_value FROM options WHERE opt_name = 'username'");
-
-            if (!username) {
+            if (!await isUserInitialized()) {
                 log.info("Login/password not initialized. DB not ready.");
 
                 return;
@@ -235,8 +237,15 @@ async function isDbUpToDate() {
     return upToDate;
 }
 
+async function isUserInitialized() {
+    const username = await getFirstValue("SELECT opt_value FROM options WHERE opt_name = 'username'");
+
+    return !!username;
+}
+
 module.exports = {
     dbReady,
+    isUserInitialized,
     insert,
     replace,
     getFirstValue,

services/sync.js

@@ -14,40 +14,31 @@ const fs = require('fs');
 const app_info = require('./app_info');
 const messaging = require('./messaging');
 const sync_setup = require('./sync_setup');
+const sync_mutex = require('./sync_mutex');
 
-let syncInProgress = false;
 let proxyToggle = true;
 let syncServerCertificate = null;
 
 async function sync() {
-    if (syncInProgress) {
-        log.info("Sync already in progress");
-
-        return {
-            success: false,
-            message: "Sync already in progress"
-        };
-    }
-
-    syncInProgress = true;
-
     try {
-        if (!await sql.isDbUpToDate()) {
-            return {
-                success: false,
-                message: "DB not up to date"
-            };
-        }
+        await sync_mutex.doExclusively(async () => {
+            if (!await sql.isDbUpToDate()) {
+                return {
+                    success: false,
+                    message: "DB not up to date"
+                };
+            }
 
-        const syncContext = await login();
+            const syncContext = await login();
 
-        await pushSync(syncContext);
+            await pushSync(syncContext);
 
-        await pullSync(syncContext);
+            await pullSync(syncContext);
 
-        await pushSync(syncContext);
+            await pushSync(syncContext);
 
-        await checkContentHash(syncContext);
+            await checkContentHash(syncContext);
+        });
 
         return {
             success: true
@@ -73,9 +64,6 @@ async function sync() {
             }
         }
     }
-    finally {
-        syncInProgress = false;
-    }
 }
 
 async function login() {
@@ -152,6 +140,12 @@ async function pullSync(syncContext) {
         else if (sync.entity_name === 'recent_notes') {
             await syncUpdate.updateRecentNotes(resp, syncContext.sourceId);
         }
+        else if (sync.entity_name === 'images') {
+            await syncUpdate.updateImage(resp, syncContext.sourceId);
+        }
+        else if (sync.entity_name === 'notes_image') {
+            await syncUpdate.updateNoteImage(resp, syncContext.sourceId);
+        }
         else {
             throw new Error(`Unrecognized entity type ${sync.entity_name} in sync #${sync.id}`);
         }
@@ -214,7 +208,7 @@ async function pushEntity(sync, syncContext) {
     else if (sync.entity_name === 'notes_reordering') {
         entity = {
             parent_note_id: sync.entity_id,
-            ordering: await sql.getMap('SELECT note_tree_id, note_position FROM notes_tree WHERE parent_note_id = ?', [sync.entity_id])
+            ordering: await sql.getMap('SELECT note_tree_id, note_position FROM notes_tree WHERE parent_note_id = ? AND is_deleted = 0', [sync.entity_id])
         };
     }
     else if (sync.entity_name === 'options') {
@@ -223,6 +217,19 @@ async function pushEntity(sync, syncContext) {
     else if (sync.entity_name === 'recent_notes') {
         entity = await sql.getFirst('SELECT * FROM recent_notes WHERE note_tree_id = ?', [sync.entity_id]);
     }
+    else if (sync.entity_name === 'images') {
+        entity = await sql.getFirst('SELECT * FROM images WHERE image_id = ?', [sync.entity_id]);
+
+        if (entity.data !== null) {
+            entity.data = entity.data.toString('base64');
+        }
+    }
+    else if (sync.entity_name === 'notes_image') {
+        entity = await sql.getFirst('SELECT * FROM notes_image WHERE note_image_id = ?', [sync.entity_id]);
+    }
+    else if (sync.entity_name === 'attributes') {
+        entity = await sql.getFirst('SELECT * FROM attributes WHERE attribute_id = ?', [sync.entity_id]);
+    }
     else {
         throw new Error(`Unrecognized entity type ${sync.entity_name} in sync #${sync.id}`);
     }

services/sync_mutex.js

@@ -0,0 +1,23 @@
+/**
+ * Sync makes process can make data intermittently inconsistent. Processes which require strong data consistency
+ * (like consistency checks) can use this mutex to make sure sync isn't currently running.
+ */
+
+const Mutex = require('async-mutex').Mutex;
+const instance = new Mutex();
+
+async function doExclusively(func) {
+    const releaseMutex = await instance.acquire();
+
+    try {
+        await func();
+    }
+    finally {
+        releaseMutex();
+    }
+
+}
+
+module.exports = {
+    doExclusively
+};

services/sync_table.js

@@ -24,8 +24,20 @@ async function addOptionsSync(optName, sourceId) {
     await addEntitySync("options", optName, sourceId);
 }
 
-async function addRecentNoteSync(notePath, sourceId) {
-    await addEntitySync("recent_notes", notePath, sourceId);
+async function addRecentNoteSync(noteTreeId, sourceId) {
+    await addEntitySync("recent_notes", noteTreeId, sourceId);
+}
+
+async function addImageSync(imageId, sourceId) {
+    await addEntitySync("images", imageId, sourceId);
+}
+
+async function addNoteImageSync(noteImageId, sourceId) {
+    await addEntitySync("notes_image", noteImageId, sourceId);
+}
+
+async function addAttributeSync(attributeId, sourceId) {
+    await addEntitySync("attributes", attributeId, sourceId);
 }
 
 async function addEntitySync(entityName, entityId, sourceId) {
@@ -78,6 +90,9 @@ async function fillAllSyncRows() {
     await fillSyncRows("notes_tree", "note_tree_id");
     await fillSyncRows("notes_history", "note_history_id");
     await fillSyncRows("recent_notes", "note_tree_id");
+    await fillSyncRows("images", "image_id");
+    await fillSyncRows("notes_image", "note_image_id");
+    await fillSyncRows("attributes", "attribute_id");
 }
 
 module.exports = {
@@ -87,6 +102,9 @@ module.exports = {
     addNoteHistorySync,
     addOptionsSync,
     addRecentNoteSync,
+    addImageSync,
+    addNoteImageSync,
+    addAttributeSync,
     cleanupSyncRowsForMissingEntities,
     fillAllSyncRows
 };