release 0.4.1

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

@@ -1,22 +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/
-
-cp -r ../trilium-node-binaries/scrypt/* node_modules/scrypt/bin/
-
+echo "Rebuilding binaries for linux-ia32"
 ./node_modules/.bin/electron-rebuild --arch=ia32
 
 ./node_modules/.bin/electron-packager . --out=dist --platform=linux --arch=ia32 --overwrite
 
+./node_modules/.bin/electron-packager . --out=dist --platform=win32 --arch=x64 --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
 
 ./node_modules/.bin/electron-packager . --out=dist --platform=linux --arch=x64 --overwrite
 
-./node_modules/.bin/electron-packager . --out=dist --platform=win32 --arch=x64 --overwrite
+echo "Copying required windows binaries"
 
-# 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/
+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

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><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 wesite: <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 ('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" (
@@ -83,3 +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;
 
@@ -38,6 +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/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": "0.2.2",
+  "version": "0.4.1",
+  "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 +1,231 @@
+"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 CALENDAR_ROOT_ATTRIBUTE = 'calendar_root';
+const YEAR_ATTRIBUTE = 'year_note';
+const MONTH_ATTRIBUTE = 'month_note';
+const DATE_ATTRIBUTE = 'date_note';
+
+// "reddit" date note is subnote of date note which contains all reddit comments from that date
+const REDDIT_DATE_ATTRIBUTE = 'reddit_date_note';
+
+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 '${startsWith}%'
+                                    AND notes.is_deleted = 0 AND is_protected = 0 
+                                    AND notes_tree.is_deleted = 0`, [parentNoteId]);
+}
+
+async function getRootNoteId() {
+    let rootNoteId = await sql.getFirstValue(`SELECT notes.note_id FROM notes JOIN attributes USING(note_id) 
+              WHERE attributes.name = '${CALENDAR_ROOT_ATTRIBUTE}' AND notes.is_deleted = 0`);
+
+    if (!rootNoteId) {
+        rootNoteId = (await notes.createNewNote('root', {
+            note_title: 'Calendar',
+            target: 'into',
+            is_protected: false
+        })).noteId;
+
+        await attributes.createAttribute(rootNoteId, CALENDAR_ROOT_ATTRIBUTE);
+    }
+
+    return rootNoteId;
+}
+
+async function getYearNoteId(dateTimeStr, rootNoteId) {
+    const yearStr = dateTimeStr.substr(0, 4);
+
+    let yearNoteId = await attributes.getNoteIdWithAttribute(YEAR_ATTRIBUTE, yearStr);
+
+    if (!yearNoteId) {
+        yearNoteId = await getNoteStartingWith(rootNoteId, yearStr);
+
+        if (!yearNoteId) {
+            yearNoteId = await createNote(rootNoteId, yearStr);
+        }
+
+        await attributes.createAttribute(yearNoteId, YEAR_ATTRIBUTE, 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_ATTRIBUTE, 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_ATTRIBUTE, 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_ATTRIBUTE, 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_ATTRIBUTE, dateStr);
+    }
+
+    return dateNoteId;
+}
+
+async function getDateNoteIdForReddit(dateTimeStr, rootNoteId) {
+    const dateStr = dateTimeStr.substr(0, 10);
+
+    let redditDateNoteId = await attributes.getNoteIdWithAttribute(REDDIT_DATE_ATTRIBUTE, dateStr);
+
+    if (!redditDateNoteId) {
+        const dateNoteId = await getDateNoteId(dateTimeStr, rootNoteId);
+
+        redditDateNoteId = await createNote(dateNoteId, "Reddit");
+
+        await attributes.createAttribute(redditDateNoteId, REDDIT_DATE_ATTRIBUTE, dateStr);
+    }
+
+    return redditDateNoteId;
+}
+
+async function importComments(rootNoteId, accountName, afterId = null) {
+    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(rootNoteId, accountName, listing.data.after);
+    }
+
+    return importedComments;
+}
+
+let redditAccounts = [];
+
+async function runImport() {
+    const rootNoteId = await getRootNoteId();
+
+    // 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(rootNoteId, 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'] || (4 * 3600);
+
+    setInterval(runImport, pollingIntervalInSeconds * 1000);
+    setTimeout(runImport, 10000); // 10 seconds after startup - intentionally after initial sync
+});

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

@@ -19,7 +19,7 @@ const contextMenu = (function() {
         }
         else if (clipboardMode === 'copy') {
             for (const noteId of clipboardIds) {
-                treeChanges.cloneNoteAfter(noteId, node.data.note_tree_id);
+                cloning.cloneNoteAfter(noteId, node.data.note_tree_id);
             }
 
             // copy will keep clipboardIds and clipboardMode so it's possible to paste into multiple places
@@ -45,7 +45,7 @@ const contextMenu = (function() {
         }
         else if (clipboardMode === 'copy') {
             for (const noteId of clipboardIds) {
-                treeChanges.cloneNoteTo(noteId, node.data.note_id);
+                cloning.cloneNoteTo(noteId, node.data.note_id);
             }
             // copy will keep clipboardIds and clipboardMode so it's possible to paste into multiple places
         }
@@ -90,7 +90,9 @@ const contextMenu = (function() {
             {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: "Force note sync", cmd: "force-note-sync", uiIcon: "ui-icon-refresh"}
+            {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);
@@ -139,7 +141,7 @@ 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);
@@ -147,6 +149,9 @@ const contextMenu = (function() {
             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/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/init.js

@@ -90,6 +90,8 @@ $(document).bind('keydown', "ctrl+shift+down", () => {
     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

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

@@ -121,7 +121,8 @@ 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;
 

public/javascripts/note_tree.js

@@ -200,7 +200,7 @@ const noteTree = (function() {
         return noteList;
     }
 
-    async function activateNode(notePath) {
+    async function expandToNote(notePath, expandOpts) {
         assertArguments(notePath);
 
         const runPath = getRunPath(notePath);
@@ -213,14 +213,22 @@ const noteTree = (function() {
             const node = getNodesByNoteId(childNoteId).find(node => node.data.parent_note_id === parentNoteId);
 
             if (childNoteId === noteId) {
-                await node.setActive();
+                return node;
             }
             else {
-                await node.setExpanded();
+                await node.setExpanded(true, expandOpts);
             }
 
             parentNoteId = childNoteId;
         }
+    }
+
+    async function activateNode(notePath) {
+        assertArguments(notePath);
+
+        const node = await expandToNote(notePath);
+
+        await node.setActive();
 
         clearSelectedNodes();
     }
@@ -368,7 +376,7 @@ 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) {
@@ -382,8 +390,8 @@ const noteTree = (function() {
         recentNotes.addRecentNote(currentNoteTreeId, currentNotePath);
     }
 
-    function getSelectedNodes() {
-        return getTree().getSelectedNodes();
+    function getSelectedNodes(stopOnParents = false) {
+        return getTree().getSelectedNodes(stopOnParents);
     }
 
     function clearSelectedNodes() {
@@ -403,7 +411,7 @@ const noteTree = (function() {
 
         const keybindings = {
             "del": node => {
-                treeChanges.deleteNode(node);
+                treeChanges.deleteNodes(getSelectedNodes(true));
             },
             "ctrl+up": node => {
                 const beforeNode = node.getPrevSibling();
@@ -468,6 +476,11 @@ 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);
@@ -759,16 +772,32 @@ const noteTree = (function() {
         if (target === 'after') {
             node.appendSibling(newNode).setActive(true);
         }
-        else {
-            node.addChildren(newNode).setActive(true);
+        else if (target === 'into') {
+            if (!node.getChildren() && node.isFolder()) {
+                await node.setExpanded();
+            }
+            else {
+                node.addChildren(newNode);
+            }
+
+            node.getLastChild().setActive(true);
 
             node.folder = true;
             node.renderTitle();
         }
+        else {
+            throwError("Unrecognized target: " + target);
+        }
 
         showMessage("Created!");
     }
 
+    async function sortAlphabetically(noteId) {
+        await server.put('notes/' + noteId + '/sort');
+
+        await reload();
+    }
+
     $(document).bind('keydown', 'ctrl+o', e => {
         console.log("pressed O");
 
@@ -792,7 +821,7 @@ const noteTree = (function() {
     $(document).bind('keydown', 'ctrl+del', e => {
         const node = getCurrentNode();
 
-        treeChanges.deleteNode(node);
+        treeChanges.deleteNodes([node]);
 
         e.preventDefault();
     });
@@ -830,6 +859,7 @@ const noteTree = (function() {
         setNoteTreeBackgroundBasedOnProtectedStatus,
         setProtected,
         getCurrentNode,
+        expandToNote,
         activateNode,
         getCurrentNotePath,
         getNoteTitle,
@@ -842,6 +872,7 @@ const noteTree = (function() {
         getNotePathTitle,
         removeParentChildRelation,
         setParentChildRelation,
-        getSelectedNodes
+        getSelectedNodes,
+        sortAlphabetically
     };
 })();

public/javascripts/protected_session.js

@@ -142,7 +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

@@ -30,7 +30,7 @@ const searchTree = (function() {
         return treeEl.fancytree('getTree');
     }
 
-    searchInputEl.keyup(e => {
+    searchInputEl.keyup(async e => {
         const searchText = searchInputEl.val();
 
         if (e && e.which === $.ui.keyCode.ESCAPE || $.trim(searchText) === "") {
@@ -39,16 +39,18 @@ const searchTree = (function() {
         }
 
         if (e && e.which === $.ui.keyCode.ENTER) {
-            server.get('notes?search=' + searchText).then(resp => {
-                // Pass a string to perform case insensitive matching
-                getTree().filterBranches(node => {
-                    return resp.includes(node.data.note_id);
-                });
-            });
+            const noteIds = await server.get('notes?search=' + encodeURIComponent(searchText));
+
+            for (const noteId of noteIds) {
+                await noteTree.expandToNote(noteId, {noAnimation: true, noEvents: true});
+            }
+
+            // Pass a string to perform case insensitive matching
+            getTree().filterBranches(node => noteIds.includes(node.data.note_id));
         }
     }).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/tree_changes.js

@@ -3,7 +3,7 @@
 const treeChanges = (function() {
     async function moveBeforeNode(nodesToMove, beforeNode) {
         for (const nodeToMove of nodesToMove) {
-            const resp = await server.put('notes/' + nodeToMove.data.note_tree_id + '/move-before/' + beforeNode.data.note_tree_id);
+            const resp = await server.put('tree/' + nodeToMove.data.note_tree_id + '/move-before/' + beforeNode.data.note_tree_id);
 
             if (!resp.success) {
                 alert(resp.message);
@@ -16,7 +16,7 @@ const treeChanges = (function() {
 
     async function moveAfterNode(nodesToMove, afterNode) {
         for (const nodeToMove of nodesToMove) {
-            const resp = await server.put('notes/' + nodeToMove.data.note_tree_id + '/move-after/' + afterNode.data.note_tree_id);
+            const resp = await server.put('tree/' + nodeToMove.data.note_tree_id + '/move-after/' + afterNode.data.note_tree_id);
 
             if (!resp.success) {
                 alert(resp.message);
@@ -27,21 +27,9 @@ const treeChanges = (function() {
         }
     }
 
-    // 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();
-    }
-
     async function moveToNode(nodesToMove, toNode) {
         for (const nodeToMove of nodesToMove) {
-            const resp = await server.put('notes/' + nodeToMove.data.note_tree_id + '/move-to/' + toNode.data.note_id);
+            const resp = await server.put('tree/' + nodeToMove.data.note_tree_id + '/move-to/' + toNode.data.note_id);
 
             if (!resp.success) {
                 alert(resp.message);
@@ -65,43 +53,27 @@ const treeChanges = (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);
+    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 deleteNode(node) {
-        if (!confirm('Are you sure you want to delete note "' + node.title + '" and all its sub-notes?')) {
-            return;
+        for (const node of nodes) {
+            await server.remove('tree/' + node.data.note_tree_id);
         }
 
-        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();
@@ -111,7 +83,7 @@ const treeChanges = (function() {
 
         noteTree.reload();
 
-        showMessage("Note has been deleted.");
+        showMessage("Note(s) has been deleted.");
     }
 
     async function moveNodeUpInHierarchy(node) {
@@ -119,7 +91,7 @@ const treeChanges = (function() {
             return;
         }
 
-        const resp = 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);
@@ -152,9 +124,7 @@ const treeChanges = (function() {
         moveBeforeNode,
         moveAfterNode,
         moveToNode,
-        deleteNode,
-        moveNodeUpInHierarchy,
-        cloneNoteAfter,
-        cloneNoteTo
+        deleteNodes,
+        moveNodeUpInHierarchy
     };
 })();

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,
+{i:b});return{controlsDescendantBindings:!0}}};a.h.va[b]=!1;a.f.aa[b]=!0}var a="undefined"!==typeof N?N:{};a.b=function(b,c){for(var d=b.split("."),e=a,f=0;f<d.length-1;f++)e=e[d[f]];e[d[d.length-1]]=c};a.H=function(a,c,d){a[c]=d};a.version="3.4.2";a.b("version",a.version);a.options={deferUpdates:!1,useOnlyNativeEvents:!1};a.a=function(){function b(a,b){for(var c in a)a.hasOwnProperty(c)&&b(c,a[c])}function c(a,b){if(b)for(var c in b)b.hasOwnProperty(c)&&(a[c]=b[c]);return a}function d(a,b){a.__proto__=
+b;return a}function e(b,c,d,e){var m=b[c].match(r)||[];a.a.r(d.match(r),function(b){a.a.ra(m,b,e)});b[c]=m.join(" ")}var f={__proto__:[]}instanceof Array,g="function"===typeof Symbol,h={},l={};h[M&&/Firefox\/2/i.test(M.userAgent)?"KeyboardEvent":"UIEvents"]=["keyup","keydown","keypress"];h.MouseEvents="click dblclick mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave".split(" ");b(h,function(a,b){if(b.length)for(var c=0,d=b.length;c<d;c++)l[b[c]]=a});var m={propertychange:!0},k=
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+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=
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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

@@ -6,10 +6,13 @@ const auth = require('../../services/auth');
 const sql = require('../../services/sql');
 const notes = require('../../services/notes');
 const log = require('../../services/log');
+const utils = require('../../services/utils');
 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 +33,9 @@ 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 +46,9 @@ 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;
@@ -54,28 +57,39 @@ router.put('/:noteId', auth.checkApiAuth, async (req, res, next) => {
     await notes.updateNote(noteId, note, dataKey, sourceId);
 
     res.send({});
-});
+}));
+
+router.get('/', auth.checkApiAuth, wrap(async (req, res, next) => {
+    const search = '%' + utils.sanitizeSql(req.query.search) + '%';
+
+    // searching in protected notes is pointless because of encryption
+    const noteIds = await sql.getFirstColumn(`SELECT note_id FROM notes 
+              WHERE is_deleted = 0 AND is_protected = 0 AND (note_title LIKE ? OR note_text LIKE ?)`, [search, search]);
+
+    res.send(noteIds);
+}));
+
+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;
 
-router.delete('/:noteTreeId', auth.checkApiAuth, async (req, res, next) => {
     await sql.doInTransaction(async () => {
-        await notes.deleteNote(req.params.noteTreeId, req.headers.source_id);
+        await notes.protectNoteRecursively(noteId, dataKey, isProtected, sourceId);
     });
 
     res.send({});
-});
-
-router.get('/', auth.checkApiAuth, 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]);
-
-    const noteIdList = [];
-
-    for (const res of result) {
-        noteIdList.push(res.note_id);
-    }
-
-    res.send(noteIdList);
-});
+}));
 
 module.exports = router;

routes/api/notes_move.js

@@ -1,262 +0,0 @@
-"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');
-
-/**
- * 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, async (req, res, next) => {
-    const noteTreeId = req.params.noteTreeId;
-    const parentNoteId = req.params.parentNoteId;
-    const sourceId = req.headers.source_id;
-
-    const noteToMove = await getNoteTree(noteTreeId);
-
-    if (!await 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, async (req, res, next) => {
-    const noteTreeId = req.params.noteTreeId;
-    const beforeNoteTreeId = req.params.beforeNoteTreeId;
-    const sourceId = req.headers.source_id;
-
-    const noteToMove = await getNoteTree(noteTreeId);
-    const beforeNote = await getNoteTree(beforeNoteTreeId);
-
-    if (!await 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, async (req, res, next) => {
-    const noteTreeId = req.params.noteTreeId;
-    const afterNoteTreeId = req.params.afterNoteTreeId;
-    const sourceId = req.headers.source_id;
-
-    const noteToMove = await getNoteTree(noteTreeId);
-    const afterNote = await getNoteTree(afterNoteTreeId);
-
-    if (!await 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('/: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;
-
-    if (!await 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, async (req, res, next) => {
-    const noteId = req.params.noteId;
-    const afterNoteTreeId = req.params.afterNoteTreeId;
-    const sourceId = req.headers.source_id;
-
-    const afterNote = await getNoteTree(afterNoteTreeId);
-
-    if (!await 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 });
-});
-
-async function loadSubTreeNoteIds(parentNoteId, subTreeNoteIds) {
-    subTreeNoteIds.push(parentNoteId);
-
-    const children = await sql.getFirstColumn("SELECT note_id FROM notes_tree WHERE parent_note_id = ? AND is_deleted = 0", [parentNoteId]);
-
-    for (const childNoteId of children) {
-        await loadSubTreeNoteIds(childNoteId, subTreeNoteIds);
-    }
-}
-
-async function getNoteTree(noteTreeId) {
-    return sql.getFirst("SELECT * FROM notes_tree WHERE note_tree_id = ?", [noteTreeId]);
-}
-
-async function validateParentChild(res, parentNoteId, childNoteId, noteTreeId = null) {
-    const existing = await getExistingNoteTree(parentNoteId, childNoteId);
-
-    if (existing && (noteTreeId === null || existing.note_tree_id !== noteTreeId)) {
-        res.send({
-            success: false,
-            message: 'This note already exists in target parent note.'
-        });
-
-        return false;
-    }
-
-    if (!await checkTreeCycle(parentNoteId, childNoteId)) {
-        res.send({
-            success: false,
-            message: 'Moving note here would create cycle.'
-        });
-
-        return false;
-    }
-
-    return true;
-}
-
-async function getExistingNoteTree(parentNoteId, childNoteId) {
-    return await sql.getFirst('SELECT * FROM notes_tree WHERE note_id = ? AND parent_note_id = ? AND is_deleted = 0', [childNoteId, parentNoteId]);
-}
-
-/**
- * Tree cycle can be created when cloning or when moving existing clone. This method should detect both cases.
- */
-async function checkTreeCycle(parentNoteId, childNoteId) {
-    const subTreeNoteIds = [];
-
-    // we'll load the whole sub tree - because the cycle can start in one of the notes in the sub tree
-    await loadSubTreeNoteIds(childNoteId, subTreeNoteIds);
-
-    async function checkTreeCycleInner(parentNoteId) {
-        if (parentNoteId === 'root') {
-            return true;
-        }
-
-        if (subTreeNoteIds.includes(parentNoteId)) {
-            // while towards the root of the tree we encountered noteId which is already present in the subtree
-            // joining parentNoteId with childNoteId would then clearly create a cycle
-            return false;
-        }
-
-        const parentNoteIds = await sql.getFirstColumn("SELECT DISTINCT parent_note_id FROM notes_tree WHERE note_id = ? AND is_deleted = 0", [parentNoteId]);
-
-        for (const pid of parentNoteIds) {
-            if (!await checkTreeCycleInner(pid)) {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
-    return await checkTreeCycleInner(parentNoteId);
-}
-
-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);
@@ -44,9 +45,9 @@ router.post('/force-full-sync', auth.checkApiAuth, async (req, res, next) => {
     sync.sync();
 
     res.send({});
-});
+}));
 
-router.post('/force-note-sync/:noteId', 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 () => {
@@ -68,94 +69,136 @@ router.post('/force-note-sync/:noteId', auth.checkApiAuth, async (req, res, next
     sync.sync();
 
     res.send({});
-});
+}));
 
-router.get('/changed', auth.checkApiAuth, async (req, res, next) => {
+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 = ? 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

@@ -8,10 +8,10 @@ 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) => {
+router.get('/', auth.checkApiAuth, wrap(async (req, res, next) => {
     const notes = await sql.getAll(`
       SELECT 
         notes_tree.*, 
@@ -39,22 +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;
@@ -66,6 +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 = 62;
+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

@@ -28,6 +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");
@@ -63,5 +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:"2018-01-03T23:05:00-05:00", build_revision: "f2aaf8b0a3b761fb6a1ec79e7c6b95e3eb9e4db0" };
+module.exports = { build_date:"2018-01-17T23:59:03-05:00", build_revision: "651a9fb3272c85d287c16d5a4978464fb7d2490d" };

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) {
@@ -80,11 +84,9 @@ async function runSyncRowChecks(table, key, errorList) {
         `Missing ${table} records for existing sync rows`, errorList);
 }
 
-async function runChecks() {
+async function runAllChecks() {
     const errorList = [];
 
-    const startTime = new Date();
-
     await runCheck(`
           SELECT 
             note_id 
@@ -119,15 +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(`
@@ -139,7 +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 
@@ -175,10 +177,33 @@ async function runChecks() {
             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
@@ -186,7 +211,20 @@ async function runChecks() {
         await checkTreeCycles(errorList);
     }
 
-    const elapsedTimeMs = new Date().getTime() - startTime.getTime();
+    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));

services/content_hash.js

@@ -16,54 +16,82 @@ function getHash(rows) {
 async function getHashes() {
     const startTime = new Date();
 
-    const optionsQuestionMarks = Array(options.SYNCED_OPTIONS.length).fill('?').join(',');
-
     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: 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();

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
@@ -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/sql.js

@@ -31,11 +31,15 @@ const dbReady = new Promise((resolve, reject) => {
             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 startNoteId = await getFirstValue("SELECT note_id FROM notes_tree WHERE parent_note_id = 'root' AND is_deleted = 0 ORDER BY note_position");
 

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 +140,15 @@ 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 if (sync.entity_name === 'attributes') {
+            await syncUpdate.updateAttribute(resp, syncContext.sourceId);
+        }
         else {
             throw new Error(`Unrecognized entity type ${sync.entity_name} in sync #${sync.id}`);
         }
@@ -223,6 +220,19 @@ 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

@@ -28,6 +28,18 @@ 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) {
     await sql.replace("sync", {
         entity_name: entityName,
@@ -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
 };

services/sync_update.js

@@ -1,6 +1,5 @@
 const sql = require('./sql');
 const log = require('./log');
-const options = require('./options');
 const eventLog = require('./event_log');
 const notes = require('./notes');
 const sync_table = require('./sync_table');
@@ -63,12 +62,12 @@ async function updateNoteReordering(entity, sourceId) {
 }
 
 async function updateOptions(entity, sourceId) {
-    if (!options.SYNCED_OPTIONS.includes(entity.opt_name)) {
+    const orig = await sql.getFirstOrNull("SELECT * FROM options WHERE opt_name = ?", [entity.opt_name]);
+
+    if (!orig.is_synced) {
         return;
     }
 
-    const orig = await sql.getFirstOrNull("SELECT * FROM options WHERE opt_name = ?", [entity.opt_name]);
-
     await sql.doInTransaction(async () => {
         if (orig === null || orig.date_modified < entity.date_modified) {
             await sql.replace('options', entity);
@@ -92,11 +91,60 @@ async function updateRecentNotes(entity, sourceId) {
     }
 }
 
+async function updateImage(entity, sourceId) {
+    if (entity.data !== null) {
+        entity.data = Buffer.from(entity.data, 'base64');
+    }
+
+    const origImage = await sql.getFirst("SELECT * FROM images WHERE image_id = ?", [entity.image_id]);
+
+    if (!origImage || origImage.date_modified <= entity.date_modified) {
+        await sql.doInTransaction(async () => {
+            await sql.replace("images", entity);
+
+            await sync_table.addImageSync(entity.image_id, sourceId);
+        });
+
+        log.info("Update/sync image " + entity.image_id);
+    }
+}
+
+async function updateNoteImage(entity, sourceId) {
+    const origNoteImage = await sql.getFirst("SELECT * FROM notes_image WHERE note_image_id = ?", [entity.note_image_id]);
+
+    if (!origNoteImage || origNoteImage.date_modified <= entity.date_modified) {
+        await sql.doInTransaction(async () => {
+            await sql.replace("notes_image", entity);
+
+            await sync_table.addNoteImageSync(entity.note_image_id, sourceId);
+        });
+
+        log.info("Update/sync note image " + entity.note_image_id);
+    }
+}
+
+async function updateAttribute(entity, sourceId) {
+    const origAttribute = await sql.getFirst("SELECT * FROM attributes WHERE attribute_id = ?", [entity.attribute_id]);
+
+    if (!origAttribute || origAttribute.date_modified <= entity.date_modified) {
+        await sql.doInTransaction(async () => {
+            await sql.replace("attributes", entity);
+
+            await sync_table.addAttributeSync(entity.attribute_id, sourceId);
+        });
+
+        log.info("Update/sync attribute " + entity.attribute_id);
+    }
+}
+
 module.exports = {
     updateNote,
     updateNoteTree,
     updateNoteHistory,
     updateNoteReordering,
     updateOptions,
-    updateRecentNotes
+    updateRecentNotes,
+    updateImage,
+    updateNoteImage,
+    updateAttribute
 };

services/tree.js

@@ -0,0 +1,114 @@
+"use strict";
+
+const sql = require('./sql');
+const sync_table = require('./sync_table');
+const data_encryption = require('./data_encryption');
+
+async function validateParentChild(res, parentNoteId, childNoteId, noteTreeId = null) {
+    const existing = await getExistingNoteTree(parentNoteId, childNoteId);
+
+    if (existing && (noteTreeId === null || existing.note_tree_id !== noteTreeId)) {
+        res.send({
+            success: false,
+            message: 'This note already exists in the target.'
+        });
+
+        return false;
+    }
+
+    if (!await checkTreeCycle(parentNoteId, childNoteId)) {
+        res.send({
+            success: false,
+            message: 'Moving note here would create cycle.'
+        });
+
+        return false;
+    }
+
+    return true;
+}
+
+async function getExistingNoteTree(parentNoteId, childNoteId) {
+    return await sql.getFirst('SELECT * FROM notes_tree WHERE note_id = ? AND parent_note_id = ? AND is_deleted = 0', [childNoteId, parentNoteId]);
+}
+
+/**
+ * Tree cycle can be created when cloning or when moving existing clone. This method should detect both cases.
+ */
+async function checkTreeCycle(parentNoteId, childNoteId) {
+    const subTreeNoteIds = [];
+
+    // we'll load the whole sub tree - because the cycle can start in one of the notes in the sub tree
+    await loadSubTreeNoteIds(childNoteId, subTreeNoteIds);
+
+    async function checkTreeCycleInner(parentNoteId) {
+        if (parentNoteId === 'root') {
+            return true;
+        }
+
+        if (subTreeNoteIds.includes(parentNoteId)) {
+            // while towards the root of the tree we encountered noteId which is already present in the subtree
+            // joining parentNoteId with childNoteId would then clearly create a cycle
+            return false;
+        }
+
+        const parentNoteIds = await sql.getFirstColumn("SELECT DISTINCT parent_note_id FROM notes_tree WHERE note_id = ? AND is_deleted = 0", [parentNoteId]);
+
+        for (const pid of parentNoteIds) {
+            if (!await checkTreeCycleInner(pid)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    return await checkTreeCycleInner(parentNoteId);
+}
+
+async function getNoteTree(noteTreeId) {
+    return sql.getFirst("SELECT * FROM notes_tree WHERE note_tree_id = ?", [noteTreeId]);
+}
+
+async function loadSubTreeNoteIds(parentNoteId, subTreeNoteIds) {
+    subTreeNoteIds.push(parentNoteId);
+
+    const children = await sql.getFirstColumn("SELECT note_id FROM notes_tree WHERE parent_note_id = ? AND is_deleted = 0", [parentNoteId]);
+
+    for (const childNoteId of children) {
+        await loadSubTreeNoteIds(childNoteId, subTreeNoteIds);
+    }
+}
+
+async function sortNotesAlphabetically(parentNoteId, dataKey, sourceId) {
+    await sql.doInTransaction(async () => {
+        const notes = await sql.getAll(`SELECT note_tree_id, note_id, note_title, is_protected 
+                                       FROM notes JOIN notes_tree USING(note_id) 
+                                       WHERE notes_tree.is_deleted = 0 AND parent_note_id = ?`, [parentNoteId]);
+
+        for (const note of notes) {
+            if (note.is_protected) {
+                note.note_title = data_encryption.decryptString(dataKey, data_encryption.noteTitleIv(note.note_id), note.note_title);
+            }
+        }
+
+        notes.sort((a, b) => a.note_title.toLowerCase() < b.note_title.toLowerCase() ? -1 : 1);
+
+        let position = 1;
+
+        for (const note of notes) {
+            await sql.execute("UPDATE notes_tree SET note_position = ? WHERE note_tree_id = ?",
+                [position, note.note_tree_id]);
+
+            position++;
+        }
+
+        await sync_table.addNoteReorderingSync(parentNoteId, sourceId);
+    });
+}
+
+module.exports = {
+    validateParentChild,
+    getNoteTree,
+    sortNotesAlphabetically
+};

services/utils.js

@@ -15,6 +15,18 @@ function newNoteHistoryId() {
     return randomString(12);
 }
 
+function newImageId() {
+    return randomString(12);
+}
+
+function newNoteImageId() {
+    return randomString(12);
+}
+
+function newAttributeId() {
+    return randomString(12);
+}
+
 function randomString(length) {
     return randtoken.generate(length);
 }
@@ -79,6 +91,24 @@ function sanitizeSql(str) {
     return str.replace(/'/g, "\\'");
 }
 
+function assertArguments() {
+    for (const i in arguments) {
+        if (!arguments[i]) {
+            throw new Error(`Argument idx#${i} should not be falsy: ${arguments[i]}`);
+        }
+    }
+}
+
+async function stopWatch(what, func) {
+    const start = new Date();
+
+    await func();
+
+    const tookMs = new Date().getTime() - start.getTime();
+
+    console.log(`${what} took ${tookMs}ms`);
+}
+
 module.exports = {
     randomSecureToken,
     randomString,
@@ -88,6 +118,9 @@ module.exports = {
     newNoteId,
     newNoteTreeId,
     newNoteHistoryId,
+    newImageId,
+    newNoteImageId,
+    newAttributeId,
     toBase64,
     fromBase64,
     hmac,
@@ -95,5 +128,7 @@ module.exports = {
     hash,
     isEmptyOrWhitespace,
     getDateTimeForFile,
-    sanitizeSql
+    sanitizeSql,
+    assertArguments,
+    stopWatch
 };

views/index.ejs

@@ -248,12 +248,24 @@
           <p>This action will create a new copy of the database and anonymise it (remove all note content and leave only structure and metadata)
             for sharing online for debugging purposes without fear of leaking your personal data.</p>
 
-          <h4>Cleanup</h4>
+          <h4>Image cleanup</h4>
 
-          <button id="cleanup-soft-deleted-items-button" class="btn btn-danger btn-sm">Permanently cleanup soft-deleted items</button> (should be executed in all synced instances)
+          <p>This will remove all image data of images not used in any current version of note from the database (metadata will remain).
 
-          <br/>
-          <br/>
+            This means that some images can disappear from note history.</p>
+
+          <button id="cleanup-unused-images-button" class="btn btn-warning btn-sm">Permanently cleanup unused images</button>
+
+          <h4>Soft-delete cleanup</h4>
+
+          <p>This deletes all soft deleted rows from the database. This change isn't synced and should be done manually on all instances.
+            <strong>Use this only if you really know what you're doing.</strong></p>
+
+          <button id="cleanup-soft-deleted-items-button" class="btn btn-danger btn-sm">Permanently cleanup soft-deleted items</button>
+
+          <h4>Vacuum database</h4>
+
+          <p>This will rebuild database which will typically result in smaller database file. No data will be actually changed.</p>
 
           <button id="vacuum-database-button" class="btn btn-sm">Vacuum database</button>
         </div>
@@ -328,6 +340,37 @@
       <textarea id="note-source" readonly="readonly"></textarea>
     </div>
 
+    <div id="attributes-dialog" title="Note attributes" style="display: none; padding: 20px;">
+      <div style="display: flex; justify-content: space-between; padding: 15px; padding-top: 0;">
+        <button class="btn-default" data-bind="click: addNewRow">Add new attribute</button>
+
+        <button class="btn-primary" data-bind="click: save">Save</button>
+      </div>
+
+      <div style="height: 97%; overflow: auto">
+        <table id="attributes-table" class="table">
+          <thead>
+            <tr>
+              <th>ID</th>
+              <th>Name</th>
+              <th>Value</th>
+            </tr>
+          </thead>
+          <tbody data-bind="foreach: attributes">
+            <tr>
+              <td data-bind="text: attribute_id"></td>
+              <td>
+                <input type="text" data-bind="value: name"/>
+              </td>
+              <td>
+                <input type="text" data-bind="value: value" style="width: 300px"/>
+              </td>
+            </tr>
+          </tbody>
+        </table>
+      </div>
+    </div>
+
     <div id="tooltip" style="display: none;"></div>
 
     <script type="text/javascript">
@@ -364,6 +407,8 @@
 
     <script src="libraries/jquery.ui-contextmenu.min.js"></script>
 
+    <script src="libraries/knockout.min.js"></script>
+
     <link href="stylesheets/style.css" rel="stylesheet">
 
     <script src="javascripts/utils.js"></script>
@@ -373,6 +418,7 @@
     <!-- Tree scripts -->
     <script src="javascripts/note_tree.js"></script>
     <script src="javascripts/tree_changes.js"></script>
+    <script src="javascripts/cloning.js"></script>
     <script src="javascripts/tree_utils.js"></script>
     <script src="javascripts/drag_and_drop.js"></script>
     <script src="javascripts/context_menu.js"></script>
@@ -393,6 +439,7 @@
     <script src="javascripts/dialogs/edit_tree_prefix.js"></script>
     <script src="javascripts/dialogs/sql_console.js"></script>
     <script src="javascripts/dialogs/note_source.js"></script>
+    <script src="javascripts/dialogs/attributes.js"></script>
 
     <script src="javascripts/link.js"></script>
     <script src="javascripts/sync.js"></script>