Bump socket.io-parser from 4.2.2 to 4.2.4

Bumps [socket.io-parser](https://github.com/socketio/socket.io-parser) from 4.2.2 to 4.2.4. - [Release notes](https://github.com/socketio/socket.io-parser/releases) - [Changelog](https://github.com/socketio/socket.io-parser/blob/main/CHANGELOG.md) - [Commits](https://github.com/socketio/socket.io-parser/compare/4.2.2...4.2.4) --- updated-dependencies: - dependency-name: socket.io-parser dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com>
2026-03-07 20:10:03 +03:00 · 2023-09-06 21:49:53 +00:00
28 changed files with 392 additions and 874 deletions
--- a/26
+++ b/26
@@ -19,22 +19,26 @@ ENV USER=youtube
 ENV NO_UPDATE_NOTIFIER=true
 ENV PM2_HOME=/app/pm2
 ENV ALLOW_CONFIG_MUTATIONS=true
-
-# Use NVM to get specific node version
-ENV NODE_VERSION=16.14.2
+# Directy fetch specific version
+## https://deb.nodesource.com/node_16.x/pool/main/n/nodejs/nodejs_16.14.2-deb-1nodesource1_amd64.deb
 RUN groupadd -g $GID $USER && useradd --system -m -g $USER --uid $UID $USER && \
    apt update && \
-    apt install -y --no-install-recommends curl ca-certificates tzdata libicu70 libatomic1 && \
+    apt install -y --no-install-recommends curl ca-certificates tzdata libicu70 && \
    apt clean && \
    rm -rf /var/lib/apt/lists/*
+    RUN case ${TARGETPLATFORM} in \
+         "linux/amd64")  NODE_ARCH=amd64   ;; \
+         "linux/arm")    NODE_ARCH=armhf  ;; \
+         "linux/arm/v7")    NODE_ARCH=armhf  ;; \
+         "linux/arm64")  NODE_ARCH=arm64  ;; \
+    esac \ 
+    && curl -L https://deb.nodesource.com/node_16.x/pool/main/n/nodejs/nodejs_16.14.2-deb-1nodesource1_$NODE_ARCH.deb -o ./nodejs.deb && \
+    apt update && \
+    apt install -y ./nodejs.deb && \
+    apt clean && \
+    rm -rf /var/lib/apt/lists/* &&\
+    rm nodejs.deb;

-RUN mkdir /usr/local/nvm
-ENV PATH="/usr/local/nvm/versions/node/v${NODE_VERSION}/bin/:${PATH}"
-ENV NVM_DIR=/usr/local/nvm
-RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.5/install.sh | bash
-RUN . "$NVM_DIR/nvm.sh" && nvm install ${NODE_VERSION}
-RUN . "$NVM_DIR/nvm.sh" && nvm use v${NODE_VERSION}
-RUN . "$NVM_DIR/nvm.sh" && nvm alias default v${NODE_VERSION}

 # Build frontend
 ARG BUILDPLATFORM
--- a/v1.yaml
+++ b/v1.yaml
@@ -293,48 +293,6 @@ paths:
                $ref: '#/components/schemas/UnsubscribeResponse'
      security:
        - Auth query parameter: []
-  /api/checkSubscription:
-    post:
-      tags:
-        - subscriptions
-      summary: Run a check for videos for a subscription
-      description: Runs a subscription check
-      operationId: post-api-checksubscription
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/CheckSubscriptionRequest'
-      responses:
-        '200':
-          description: OK
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/SuccessObject'
-      security:
-        - Auth query parameter: []
-  /api/cancelCheckSubscription:
-    post:
-      tags:
-        - subscriptions
-      summary: Cancels check for videos for a subscription
-      description: Cancels subscription check
-      operationId: post-api-checksubscription
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/CheckSubscriptionRequest'
-      responses:
-        '200':
-          description: OK
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/SuccessObject'
-      security:
-        - Auth query parameter: []
  /api/deleteSubscriptionFile:
    post:
      tags:
@@ -2023,11 +1981,11 @@ components:
          type: string
    UnsubscribeRequest:
      required:
-        - sub_id
+        - sub
      type: object
      properties:
-        sub_id:
-          type: string
+        sub:
+          $ref: '#/components/schemas/SubscriptionRequestData'
        deleteMode:
          type: boolean
          description: Defaults to false
@@ -2040,13 +1998,6 @@ components:
          type: boolean
        error:
          type: string
-    CheckSubscriptionRequest:
-      required:
-        - sub_id
-      type: object
-      properties:
-        sub_id:
-          type: string
    DeleteAllFilesResponse:
      type: object
      properties:
@@ -2732,8 +2683,6 @@ components:
          type: boolean
        paused:
          type: boolean
-        cancelled:
-          type: boolean
        finished_step:
          type: boolean
        url:
@@ -2892,8 +2841,6 @@ components:
          nullable: true
        isPlaylist:
          type: boolean
-        child_process:
-          type: object
        archive:
          type: string
        timerange:
@@ -2902,10 +2849,6 @@ components:
          type: string
        custom_output:
          type: string
-        downloading:
-          type: boolean
-        paused:
-          type: boolean
        videos:
          type: array
          items:
--- a/backend/app.js
+++ b/backend/app.js
@@ -20,6 +20,11 @@ const ps = require('ps-node');
 const Feed = require('feed').Feed;
 const session = require('express-session');

+// needed if bin/details somehow gets deleted
+if (!fs.existsSync(CONSTS.DETAILS_BIN_PATH)) fs.writeJSONSync(CONSTS.DETAILS_BIN_PATH, {"version":"2000.06.06","path":"node_modules\\youtube-dl\\bin\\youtube-dl.exe","exec":"youtube-dl.exe","downloader":"youtube-dl"})
+
+const youtubedl = require('youtube-dl');
+
 const logger = require('./logger');
 const config_api = require('./config.js');
 const downloader_api = require('./downloader');
@@ -30,7 +35,6 @@ const twitch_api = require('./twitch');
 const youtubedl_api = require('./youtube-dl');
 const archive_api = require('./archive');
 const files_api = require('./files');
-const notifications_api = require('./notifications');

 var app = express();

@@ -532,7 +536,7 @@ async function loadConfig() {
        // set downloading to false
        let subscriptions = await subscriptions_api.getAllSubscriptions();
        subscriptions.forEach(async sub => subscriptions_api.writeSubscriptionMetadata(sub));
-        subscriptions_api.updateSubscriptionPropertyMultiple(subscriptions, {downloading: false, child_process: null});
+        subscriptions_api.updateSubscriptionPropertyMultiple(subscriptions, {downloading: false});
        // runs initially, then runs every ${subscriptionCheckInterval} seconds
        const watchSubscriptionsInterval = function() {
            watchSubscriptions();
@@ -616,7 +620,7 @@ async function watchSubscriptions() {
                logger.verbose(`Skipping subscription ${sub.name} due to multi-user mode change.`);
                return;
            }
-            await subscriptions_api.getVideosForSub(sub.id);
+            await subscriptions_api.getVideosForSub(sub, sub.user_uid);
            subscription_timeouts[sub.id] = false;
        }, current_delay);
        subscription_timeouts[sub.id] = true;
@@ -653,20 +657,36 @@ function generateEnvVarConfigItem(key) {

 // currently only works for single urls
 async function getUrlInfos(url) {
-    const {parsed_output, err} = await youtubedl_api.runYoutubeDL(url, ['--dump-json']);
-    if (!parsed_output || parsed_output.length !== 1) {
-        logger.error(`Failed to retrieve available formats for url: ${url}`);
-        if (err) logger.error(err);
-        return null;
-    }
-    return parsed_output[0];
+    let startDate = Date.now();
+    let result = [];
+    return new Promise(resolve => {
+        youtubedl.exec(url, ['--dump-json'], {maxBuffer: Infinity}, (err, output) => {
+            let new_date = Date.now();
+            let difference = (new_date - startDate)/1000;
+            logger.debug(`URL info retrieval delay: ${difference} seconds.`);
+            if (err) {
+                logger.error(`Error during retrieving formats for ${url}: ${err}`);
+                resolve(null);
+            }
+            let try_putput = null;
+            try {
+                try_putput = JSON.parse(output);
+                result = try_putput;
+            } catch(e) {
+                logger.error(`Failed to retrieve available formats for url: ${url}`);
+            }
+            resolve(result);
+        });
+    });
 }

 // youtube-dl functions

 async function startYoutubeDL() {
    // auto update youtube-dl
-    await youtubedl_api.checkForYoutubeDLUpdate();
+    youtubedl_api.verifyBinaryExistsLinux();
+    const update_available = await youtubedl_api.checkForYoutubeDLUpdate();
+    if (update_available) await youtubedl_api.updateYoutubeDL(update_available);
 }

 app.use(function(req, res, next) {
@@ -686,7 +706,7 @@ app.use(function(req, res, next) {
        next();
    } else if (req.query.apiKey && config_api.getConfigItem('ytdl_use_api_key') && req.query.apiKey === config_api.getConfigItem('ytdl_api_key')) {
        next();
-    } else if (req.path.includes('/api/stream/') || req.path.includes('/api/thumbnail/') || req.path.includes('/api/rss') || req.path.includes('/api/telegramRequest')) {
+    } else if (req.path.includes('/api/stream/') || req.path.includes('/api/thumbnail/') || req.path.includes('/api/rss')) {
        next();
    } else {
        logger.verbose(`Rejecting request - invalid API use for endpoint: ${req.path}. API key received: ${req.query.apiKey}`);
@@ -1192,10 +1212,10 @@ app.post('/api/subscribe', optionalJwt, async (req, res) => {

 app.post('/api/unsubscribe', optionalJwt, async (req, res) => {
    let deleteMode = req.body.deleteMode
-    let sub_id = req.body.sub_id;
+    let sub = req.body.sub;
    let user_uid = req.isAuthenticated() ? req.user.uid : null;

-    let result_obj = subscriptions_api.unsubscribe(sub_id, deleteMode, user_uid);
+    let result_obj = subscriptions_api.unsubscribe(sub, deleteMode, user_uid);
    if (result_obj.success) {
        res.send({
            success: result_obj.success
@@ -1265,49 +1285,21 @@ app.post('/api/getSubscription', optionalJwt, async (req, res) => {
 });

 app.post('/api/downloadVideosForSubscription', optionalJwt, async (req, res) => {
-    const subID = req.body.subID;
+    let subID = req.body.subID;
+    let user_uid = req.isAuthenticated() ? req.user.uid : null;

-    const sub = subscriptions_api.getSubscription(subID);
-    subscriptions_api.getVideosForSub(sub.id);
+    let sub = subscriptions_api.getSubscription(subID, user_uid);
+    subscriptions_api.getVideosForSub(sub, user_uid);
    res.send({
        success: true
    });
 });

 app.post('/api/updateSubscription', optionalJwt, async (req, res) => {
-    const updated_sub = req.body.subscription;
-
-    const success = subscriptions_api.updateSubscription(updated_sub);
-    res.send({
-        success: success
-    });
-});
-
-app.post('/api/checkSubscription', optionalJwt, async (req, res) => {
-    let sub_id = req.body.sub_id;
+    let updated_sub = req.body.subscription;
    let user_uid = req.isAuthenticated() ? req.user.uid : null;

-    const success = subscriptions_api.getVideosForSub(sub_id, user_uid);
-    res.send({
-        success: success
-    });
-});
-
-app.post('/api/cancelCheckSubscription', optionalJwt, async (req, res) => {
-    let sub_id = req.body.sub_id;
-    let user_uid = req.isAuthenticated() ? req.user.uid : null;
-
-    const success = subscriptions_api.cancelCheckSubscription(sub_id, user_uid);
-    res.send({
-        success: success
-    });
-});
-
-app.post('/api/cancelSubscriptionCheck', optionalJwt, async (req, res) => {
-    let sub_id = req.body.sub_id;
-    let user_uid = req.isAuthenticated() ? req.user.uid : null;
-
-    const success = subscriptions_api.getVideosForSub(sub_id, user_uid);
+    let success = subscriptions_api.updateSubscription(updated_sub, user_uid);
    res.send({
        success: success
    });
@@ -1785,10 +1777,6 @@ app.post('/api/cancelDownload', optionalJwt, async (req, res) => {
 app.post('/api/getTasks', optionalJwt, async (req, res) => {
    const tasks = await db_api.getRecords('tasks');
    for (let task of tasks) {
-        if (!tasks_api.TASKS[task['key']]) {
-            logger.verbose(`Task ${task['key']} does not exist!`);
-            continue;
-        }
        if (task['schedule']) task['next_invocation'] = tasks_api.TASKS[task['key']]['job'].nextInvocation().getTime();
    }
    res.send({tasks: tasks});
@@ -2097,25 +2085,6 @@ app.post('/api/deleteAllNotifications', optionalJwt, async (req, res) => {
    res.send({success: success});
 });

-app.post('/api/telegramRequest', async (req, res) => {
-    if (!req.body.message  && !req.body.message.text) {
-        logger.error('Invalid Telegram request received!');
-        res.sendStatus(400);
-        return;
-    }
-    const text = req.body.message.text;
-    const regex_exp = /https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)?/gi;
-    const url_regex = new RegExp(regex_exp);
-    if (text.match(url_regex)) {
-        downloader_api.createDownload(text, 'video', {}, req.query.user_uid ? req.query.user_uid : null);
-        res.sendStatus(200);
-    } else {
-        logger.error('Invalid Telegram request received! Make sure you only send a valid URL.');
-        notifications_api.sendTelegramNotification({title: 'Invalid Telegram Request', body: 'Make sure you only send a valid URL.', url: text});
-        res.sendStatus(400);
-    }
-});
-
 // rss feed

 app.get('/api/rss', async function (req, res) {
@@ -2183,8 +2152,6 @@ app.use(function(req, res, next) {

    let index_path = path.join(__dirname, 'public', 'index.html');

-    res.setHeader('Content-Type', 'text/html');
-
    fs.createReadStream(index_path).pipe(res);

 });
--- a/backend/appdata/default.json
+++ b/backend/appdata/default.json
@@ -49,7 +49,6 @@
      "use_telegram_API": false,
      "telegram_bot_token": "",
      "telegram_chat_id": "",
-      "telegram_webhook_proxy": "",
      "webhook_URL": "",
      "discord_webhook_URL": "",
      "slack_webhook_URL": ""
--- a/backend/categories.js
+++ b/backend/categories.js
@@ -32,8 +32,10 @@ async function categorize(file_jsons) {
        return null;
    }

-    for (const file_json of file_jsons) {
-        for (const category of categories) {
+    for (let i = 0; i < file_jsons.length; i++) {
+        const file_json = file_jsons[i];
+        for (let j = 0; j < categories.length; j++) {
+            const category = categories[j];
            const rules = category['rules'];
    
            // if rules for current category apply, then that is the selected category
--- a/backend/config.js
+++ b/backend/config.js
@@ -1,26 +1,22 @@
 const logger = require('./logger');

 const fs = require('fs');
-const { BehaviorSubject } = require('rxjs');
-
-exports.CONFIG_ITEMS = require('./consts.js')['CONFIG_ITEMS'];
-exports.descriptors = {}; // to get rid of file locks when needed, TODO: move to youtube-dl.js

+let CONFIG_ITEMS = require('./consts.js')['CONFIG_ITEMS'];
 const debugMode = process.env.YTDL_MODE === 'debug';

 let configPath = debugMode ? '../src/assets/default.json' : 'appdata/default.json';
-exports.config_updated = new BehaviorSubject();

-exports.initialize = () => {
+function initialize() {
    ensureConfigFileExists();
    ensureConfigItemsExist();
 }

 function ensureConfigItemsExist() {
-    const config_keys = Object.keys(exports.CONFIG_ITEMS);
+    const config_keys = Object.keys(CONFIG_ITEMS);
    for (let i = 0; i < config_keys.length; i++) {
        const config_key = config_keys[i];
-        exports.getConfigItem(config_key);
+        getConfigItem(config_key);
    }
 }

@@ -61,17 +57,17 @@ function getElementNameInConfig(path) {
 /**
 * Check if config exists. If not, write default config to config path
 */
-exports.configExistsCheck = () => {
+function configExistsCheck() {
    let exists = fs.existsSync(configPath);
    if (!exists) {
-        exports.setConfigFile(DEFAULT_CONFIG);
+        setConfigFile(DEFAULT_CONFIG);
    }
 }

 /*
 * Gets config file and returns as a json
 */
-exports.getConfigFile = () => {
+function getConfigFile() {
    try {
        let raw_data = fs.readFileSync(configPath);
        let parsed_data = JSON.parse(raw_data);
@@ -82,40 +78,35 @@ exports.getConfigFile = () => {
    }
 }

-exports.setConfigFile = (config) => {
+function setConfigFile(config) {
    try {
-        const old_config = exports.getConfigFile();
        fs.writeFileSync(configPath, JSON.stringify(config, null, 2));
-        const changes = exports.findChangedConfigItems(old_config, config);
-        if (changes.length > 0) {
-            for (const change of changes) exports.config_updated.next(change);
-        }
        return true;
    } catch(e) {
        return false;
    }
 }

-exports.getConfigItem = (key) => {
-    let config_json = exports.getConfigFile();
-    if (!exports.CONFIG_ITEMS[key]) {
+function getConfigItem(key) {
+    let config_json = getConfigFile();
+    if (!CONFIG_ITEMS[key]) {
        logger.error(`Config item with key '${key}' is not recognized.`);
        return null;
    }
-    let path = exports.CONFIG_ITEMS[key]['path'];
+    let path = CONFIG_ITEMS[key]['path'];
    const val = Object.byString(config_json, path);
    if (val === undefined && Object.byString(DEFAULT_CONFIG, path) !== undefined) {
        logger.warn(`Cannot find config with key '${key}'. Creating one with the default value...`);
-        exports.setConfigItem(key, Object.byString(DEFAULT_CONFIG, path));
+        setConfigItem(key, Object.byString(DEFAULT_CONFIG, path));
        return Object.byString(DEFAULT_CONFIG, path);
    }
    return Object.byString(config_json, path);
 }

-exports.setConfigItem = (key, value) => {
+function setConfigItem(key, value) {
    let success = false;
-    let config_json = exports.getConfigFile();
-    let path = exports.CONFIG_ITEMS[key]['path'];
+    let config_json = getConfigFile();
+    let path = CONFIG_ITEMS[key]['path'];
    let element_name = getElementNameInConfig(path);
    let parent_path = getParentPath(path);
    let parent_object = Object.byString(config_json, parent_path);
@@ -127,18 +118,20 @@ exports.setConfigItem = (key, value) => {
        parent_parent_object[parent_parent_single_key] = {};
        parent_object = Object.byString(config_json, parent_path);
    }
-    if (value === 'false') value = false;
-    if (value === 'true') value = true;
-    parent_object[element_name] = value;

-    success = exports.setConfigFile(config_json);
+    if (value === 'false' || value === 'true') {
+        parent_object[element_name] = (value === 'true');
+    } else {
+        parent_object[element_name] = value;
+    }
+    success = setConfigFile(config_json);

    return success;
 }

-exports.setConfigItems = (items) => {
+function setConfigItems(items) {
    let success = false;
-    let config_json = exports.getConfigFile();
+    let config_json = getConfigFile();
    for (let i = 0; i < items.length; i++) {
        let key = items[i].key;
        let value = items[i].value;
@@ -148,7 +141,7 @@ exports.setConfigItems = (items) => {
            value = (value === 'true');
        }

-        let item_path = exports.CONFIG_ITEMS[key]['path'];
+        let item_path = CONFIG_ITEMS[key]['path'];
        let item_parent_path = getParentPath(item_path);
        let item_element_name = getElementNameInConfig(item_path);

@@ -156,41 +149,28 @@ exports.setConfigItems = (items) => {
        item_parent_object[item_element_name] = value;
    }

-    success = exports.setConfigFile(config_json);
+    success = setConfigFile(config_json);
    return success;
 }

-exports.globalArgsRequiresSafeDownload = () => {
-    const globalArgs = exports.getConfigItem('ytdl_custom_args').split(',,');
+function globalArgsRequiresSafeDownload() {
+    const globalArgs = getConfigItem('ytdl_custom_args').split(',,');
    const argsThatRequireSafeDownload = ['--write-sub', '--write-srt', '--proxy'];
    const failedArgs = globalArgs.filter(arg => argsThatRequireSafeDownload.includes(arg));
    return failedArgs && failedArgs.length > 0;
 }

-exports.findChangedConfigItems = (old_config, new_config, path = '', changedConfigItems = [], depth = 0) => {
-    if (typeof old_config === 'object' && typeof new_config === 'object' && depth < 3) {
-        for (const key in old_config) {
-            if (Object.prototype.hasOwnProperty.call(new_config, key)) {
-                exports.findChangedConfigItems(old_config[key], new_config[key], `${path}${path ? '.' : ''}${key}`, changedConfigItems, depth + 1);
-            }
-        }
-    } else {
-        if (JSON.stringify(old_config) !== JSON.stringify(new_config)) {
-            const key = getConfigItemKeyByPath(path);
-            changedConfigItems.push({
-                key: key ? key : path.split('.')[path.split('.').length - 1], // return key in CONFIG_ITEMS or the object key
-                old_value: JSON.parse(JSON.stringify(old_config)),
-                new_value: JSON.parse(JSON.stringify(new_config))
-            });
-        }
-    }
-    return changedConfigItems;
-}
-
-function getConfigItemKeyByPath(path) {
-    const found_item = Object.values(exports.CONFIG_ITEMS).find(item => item.path === path);
-    if (found_item) return found_item['key'];
-    else return null;
+module.exports = {
+    getConfigItem: getConfigItem,
+    setConfigItem: setConfigItem,
+    setConfigItems: setConfigItems,
+    getConfigFile: getConfigFile,
+    setConfigFile: setConfigFile,
+    configExistsCheck: configExistsCheck,
+    CONFIG_ITEMS: CONFIG_ITEMS,
+    initialize: initialize,
+    descriptors: {},
+    globalArgsRequiresSafeDownload: globalArgsRequiresSafeDownload
 }

 const DEFAULT_CONFIG = {
@@ -239,7 +219,6 @@ const DEFAULT_CONFIG = {
        "use_telegram_API": false,
        "telegram_bot_token": "",
        "telegram_chat_id": "",
-        "telegram_webhook_proxy": "",
        "webhook_URL": "",
        "discord_webhook_URL": "",
        "slack_webhook_URL": "",
--- a/backend/consts.js
+++ b/backend/consts.js
@@ -154,10 +154,6 @@ exports.CONFIG_ITEMS = {
        'key': 'ytdl_telegram_chat_id',
        'path': 'YoutubeDLMaterial.API.telegram_chat_id'
    },
-    'ytdl_telegram_webhook_proxy': {
-        'key': 'ytdl_telegram_webhook_proxy',
-        'path': 'YoutubeDLMaterial.API.telegram_webhook_proxy'
-    },
    'ytdl_webhook_url': {
        'key': 'ytdl_webhook_url',
        'path': 'YoutubeDLMaterial.API.webhook_URL'
@@ -273,8 +269,7 @@ exports.AVAILABLE_PERMISSIONS = [
    'tasks_manager'
 ];

-exports.DETAILS_BIN_PATH = 'appdata/youtube-dl.json'
-exports.OUTDATED_YOUTUBEDL_VERSION = "2020.00.00";
+exports.DETAILS_BIN_PATH = 'node_modules/youtube-dl/bin/details'

 // args that have a value after it (e.g. -o <output> or -f <format>)
 const YTDL_ARGS_WITH_VALUES = [
--- a/backend/downloader.js
+++ b/backend/downloader.js
@@ -4,6 +4,8 @@ const path = require('path');
 const NodeID3 = require('node-id3')
 const Mutex = require('async-mutex').Mutex;

+const youtubedl = require('youtube-dl');
+
 const logger = require('./logger');
 const youtubedl_api = require('./youtube-dl');
 const config_api = require('./config');
@@ -19,8 +21,6 @@ const archive_api = require('./archive');
 const mutex = new Mutex();
 let should_check_downloads = true;

-const download_to_child_process = {};
-
 if (db_api.database_initialized) {
    exports.setupDownloads();
 } else {
@@ -84,11 +84,8 @@ exports.pauseDownload = async (download_uid) => {
    } else if (download['finished']) {
        logger.info(`Download ${download_uid} could not be paused before completing.`);
        return false;
-    } else {
-        logger.info(`Pausing download ${download_uid}`);
    }

-    killActiveDownload(download);
    return await db_api.updateRecord('download_queue', {uid: download_uid}, {paused: true, running: false});
 }

@@ -123,23 +120,16 @@ exports.cancelDownload = async (download_uid) => {
    } else if (download['finished']) {
        logger.info(`Download ${download_uid} could not be cancelled before completing.`);
        return false;
-    } else {
-        logger.info(`Cancelling download ${download_uid}`);
    }
-
-    killActiveDownload(download);
-    await handleDownloadError(download_uid, 'Cancelled', 'cancelled');
-    return await db_api.updateRecord('download_queue', {uid: download_uid}, {cancelled: true});
+    return await db_api.updateRecord('download_queue', {uid: download_uid}, {cancelled: true, running: false});
 }

 exports.clearDownload = async (download_uid) => {
    return await db_api.removeRecord('download_queue', {uid: download_uid});
 }

-async function handleDownloadError(download_uid, error_message, error_type = null) {
-    if (!download_uid) return;
-    const download = await db_api.getRecord('download_queue', {uid: download_uid});
-    if (!download || download['error']) return;
+async function handleDownloadError(download, error_message, error_type = null) {
+    if (!download || !download['uid']) return;
    notifications_api.sendDownloadErrorNotification(download, download['user_uid'], error_message, error_type);
    await db_api.updateRecord('download_queue', {uid: download['uid']}, {error: error_message, finished: true, running: false, error_type: error_type});
 }
@@ -190,14 +180,14 @@ async function checkDownloads() {
            if (waiting_download['sub_id']) {
                const sub_missing = !(await db_api.getRecord('subscriptions', {id: waiting_download['sub_id']}));
                if (sub_missing) {
-                    handleDownloadError(waiting_download['uid'], `Download failed as subscription with id '${waiting_download['sub_id']}' is missing!`, 'sub_id_missing');
+                    handleDownloadError(waiting_download, `Download failed as subscription with id '${waiting_download['sub_id']}' is missing!`, 'sub_id_missing');
                    continue;
                }
            }
            // move to next step
            running_downloads_count++;
            if (waiting_download['step_index'] === 0) {
-                exports.collectInfo(waiting_download['uid']);
+                collectInfo(waiting_download['uid']);
            } else if (waiting_download['step_index'] === 1) {
                exports.downloadQueuedFile(waiting_download['uid']);
            }
@@ -205,15 +195,7 @@ async function checkDownloads() {
    }
 }

-function killActiveDownload(download) {
-    const child_process = download_to_child_process[download['uid']];
-    if (download['step_index'] === 2 && child_process) {
-        youtubedl_api.killYoutubeDLProcess(child_process);
-        delete download_to_child_process[download['uid']];
-    }
-}
-
-exports.collectInfo = async (download_uid) => {
+async function collectInfo(download_uid) {
    const download = await db_api.getRecord('download_queue', {uid: download_uid});
    if (download['paused']) {
        return;
@@ -236,21 +218,21 @@ exports.collectInfo = async (download_uid) => {
    // get video info prior to download
    let info = download['prefetched_info'] ? download['prefetched_info'] : await exports.getVideoInfoByURL(url, args, download_uid);

-    if (!info || info.length === 0) {
+    if (!info) {
        // info failed, error presumably already recorded
        return;
    }

    // in subscriptions we don't care if archive mode is enabled, but we already removed archived videos from subs by this point
    const useYoutubeDLArchive = config_api.getConfigItem('ytdl_use_youtubedl_archive');
-    if (useYoutubeDLArchive && !options.ignoreArchive && info.length === 1) {
-        const info_obj = info[0];
-        const exists_in_archive = await archive_api.existsInArchive(info['extractor'], info_obj['id'], type, download['user_uid'], download['sub_id']);
+    if (useYoutubeDLArchive && !options.ignoreArchive) {
+        const exists_in_archive = await archive_api.existsInArchive(info['extractor'], info['id'], type, download['user_uid'], download['sub_id']);
        if (exists_in_archive) {
-            const error = `File '${info_obj['title']}' already exists in archive! Disable the archive or override to continue downloading.`;
+            const error = `File '${info['title']}' already exists in archive! Disable the archive or override to continue downloading.`;
            logger.warn(error);
            if (download_uid) {
-                await handleDownloadError(download_uid, error, 'exists_in_archive');
+                const download = await db_api.getRecord('download_queue', {uid: download_uid});
+                await handleDownloadError(download, error, 'exists_in_archive');
                return;
            }
        }
@@ -259,7 +241,7 @@ exports.collectInfo = async (download_uid) => {
    let category = null;

    // check if it fits into a category. If so, then get info again using new args
-    if (info.length === 1 || config_api.getConfigItem('ytdl_allow_playlist_categorization')) category = await categories_api.categorize(info);
+    if (info.length === 0 || config_api.getConfigItem('ytdl_allow_playlist_categorization')) category = await categories_api.categorize(info);

    // set custom output if the category has one and re-retrieve info so the download manager has the right file name
    if (category && category['custom_output']) {
@@ -280,20 +262,20 @@ exports.collectInfo = async (download_uid) => {
    // store info in download for future use
    for (let info_obj of info) files_to_check_for_progress.push(utils.removeFileExtension(info_obj['_filename']));

-    const title = info.length > 1 ? info[0]['playlist_title'] || info[0]['playlist'] : info[0]['title'];
+    const playlist_title = info.length > 0 ? info[0]['playlist_title'] || info[0]['playlist'] : null;
    await db_api.updateRecord('download_queue', {uid: download_uid}, {args: args,
                                                                    finished_step: true,
                                                                    running: false,
                                                                    options: options,
                                                                    files_to_check_for_progress: files_to_check_for_progress,
                                                                    expected_file_size: expected_file_size,
-                                                                    title: title,
+                                                                    title: playlist_title ? playlist_title : info['title'],
                                                                    category: stripped_category,
                                                                    prefetched_info: null
                                                                });
 }

-exports.downloadQueuedFile = async(download_uid, customDownloadHandler = null) => {
+exports.downloadQueuedFile = async(download_uid, downloadMethod = youtubedl.exec) => {
    const download = await db_api.getRecord('download_queue', {uid: download_uid});
    if (download['paused']) {
        return;
@@ -323,25 +305,21 @@ exports.downloadQueuedFile = async(download_uid, customDownloadHandler = null) =
        const download_checker = setInterval(() => checkDownloadPercent(download['uid']), 1000);
        const file_objs = [];
        // download file
-        let {child_process, callback} = await youtubedl_api.runYoutubeDL(url, args, customDownloadHandler);
-        if (child_process) download_to_child_process[download['uid']] = child_process;
-        const {parsed_output, err} = await callback;
+        const {parsed_output, err} = await youtubedl_api.runYoutubeDL(url, args, downloadMethod);
        clearInterval(download_checker);
        let end_time = Date.now();
        let difference = (end_time - start_time)/1000;
        logger.debug(`${type === 'audio' ? 'Audio' : 'Video'} download delay: ${difference} seconds.`);
        if (!parsed_output) {
-            const errored_download = await db_api.getRecord('download_queue', {uid: download_uid});
-            if (errored_download && errored_download['paused']) return;
-            logger.error(err.toString());
-            await handleDownloadError(download_uid, err.toString(), 'unknown_error');
+            logger.error(err.stderr);
+            await handleDownloadError(download, err.stderr, 'unknown_error');
            resolve(false);
            return;
        } else if (parsed_output) {
            if (parsed_output.length === 0 || parsed_output[0].length === 0) {
                // ERROR!
                const error_message = `No output received for video download, check if it exists in your archive.`;
-                await handleDownloadError(download_uid, error_message, 'no_output');
+                await handleDownloadError(download, error_message, 'no_output');
                logger.warn(error_message);
                resolve(false);
                return;
@@ -407,13 +385,14 @@ exports.downloadQueuedFile = async(download_uid, customDownloadHandler = null) =

            if (file_objs.length > 1) {
                // create playlist
-                container = await files_api.createPlaylist(download['title'], file_objs.map(file_obj => file_obj.uid), download['user_uid']);
+                const playlist_name = file_objs.map(file_obj => file_obj.title).join(', ');
+                container = await files_api.createPlaylist(playlist_name, file_objs.map(file_obj => file_obj.uid), download['user_uid']);
            } else if (file_objs.length === 1) {
                container = file_objs[0];
            } else {
                const error_message = 'Downloaded file failed to result in metadata object.';
                logger.error(error_message);
-                await handleDownloadError(download_uid, error_message, 'no_metadata');
+                await handleDownloadError(download, error_message, 'no_metadata');
            }

            const file_uids = file_objs.map(file_obj => file_obj.uid);
@@ -426,7 +405,7 @@ exports.downloadQueuedFile = async(download_uid, customDownloadHandler = null) =
 // helper functions

 exports.generateArgs = async (url, type, options, user_uid = null, simulated = false) => {
-    const default_downloader = config_api.getConfigItem('ytdl_default_downloader');
+    const default_downloader = utils.getCurrentDownloader() || config_api.getConfigItem('ytdl_default_downloader');

    if (!simulated && (default_downloader === 'youtube-dl' || default_downloader === 'youtube-dlc')) {
        logger.warn('It is recommended you use yt-dlp! To prevent failed downloads, change the downloader in your settings menu to yt-dlp and restart your instance.')
@@ -557,30 +536,34 @@ exports.generateArgs = async (url, type, options, user_uid = null, simulated = f
 }

 exports.getVideoInfoByURL = async (url, args = [], download_uid = null) => {
-    // remove bad args
-    const temp_args = utils.filterArgs(args, ['--no-simulate']);
-    const new_args = [...temp_args];
+    return new Promise(resolve => {
+        // remove bad args
+        const temp_args = utils.filterArgs(args, ['--no-simulate']);
+        const new_args = [...temp_args];

-    const archiveArgIndex = new_args.indexOf('--download-archive');
-    if (archiveArgIndex !== -1) {
-        new_args.splice(archiveArgIndex, 2);
-    }
-
-    new_args.push('--dump-json');
-
-    let {callback} = await youtubedl_api.runYoutubeDL(url, new_args);
-    const {parsed_output, err} = await callback;
-    if (!parsed_output || parsed_output.length === 0) {
-        let error_message = `Error while retrieving info on video with URL ${url} with the following message: ${err}`;
-        if (err.stderr) error_message += `\n\n${err.stderr}`;
-        logger.error(error_message);
-        if (download_uid) {
-            await handleDownloadError(download_uid, error_message, 'info_retrieve_failed');
+        const archiveArgIndex = new_args.indexOf('--download-archive');
+        if (archiveArgIndex !== -1) {
+            new_args.splice(archiveArgIndex, 2);
        }
-        return null;
-    }

-    return parsed_output;
+        new_args.push('--dump-json');
+
+        youtubedl.exec(url, new_args, {maxBuffer: Infinity}, async (err, output) => {
+            const parsed_output = utils.parseOutputJSON(output, err);
+            if (parsed_output) {
+                resolve(parsed_output);
+            } else {
+                let error_message = `Error while retrieving info on video with URL ${url} with the following message: ${err}`;
+                if (err.stderr) error_message += `\n\n${err.stderr}`;
+                logger.error(error_message);
+                if (download_uid) {
+                    const download = await db_api.getRecord('download_queue', {uid: download_uid});
+                    await handleDownloadError(download, error_message, 'info_retrieve_failed');
+                }
+                resolve(null);
+            }
+        });
+    });
 }

 function filterArgs(args, isAudio) {
@@ -599,7 +582,6 @@ async function checkDownloadPercent(download_uid) {
    */

    const download = await db_api.getRecord('download_queue', {uid: download_uid});
-    if (!download) return;
    const files_to_check_for_progress = download['files_to_check_for_progress'];
    const resulting_file_size = download['expected_file_size'];

--- a/backend/notifications.js
+++ b/backend/notifications.js
@@ -8,8 +8,7 @@ const { uuid } = require('uuidv4');

 const fetch = require('node-fetch');
 const { gotify } = require("gotify");
-const TelegramBotAPI = require('node-telegram-bot-api');
-let telegram_bot = null;
+const TelegramBot = require('node-telegram-bot-api');
 const REST = require('@discordjs/rest').REST;
 const API = require('@discordjs/core').API;
 const EmbedBuilder = require('@discordjs/builders').EmbedBuilder;
@@ -57,7 +56,7 @@ exports.sendNotification = async (notification) => {
        sendGotifyNotification(data);
    }
    if (config_api.getConfigItem('ytdl_use_telegram_API') && config_api.getConfigItem('ytdl_telegram_bot_token') && config_api.getConfigItem('ytdl_telegram_chat_id')) {
-        exports.sendTelegramNotification(data);
+        sendTelegramNotification(data);
    }
    if (config_api.getConfigItem('ytdl_webhook_url')) {
        sendGenericNotification(data);
@@ -114,8 +113,6 @@ function notificationEnabled(type) {
    return config_api.getConfigItem('ytdl_enable_notifications') && (config_api.getConfigItem('ytdl_enable_all_notifications') || config_api.getConfigItem('ytdl_allowed_notification_types').includes(type));
 }

-// ntfy
-
 function sendNtfyNotification({body, title, type, url, thumbnail}) {
    logger.verbose('Sending notification to ntfy');
    fetch(config_api.getConfigItem('ytdl_ntfy_topic_url'), {
@@ -130,8 +127,6 @@ function sendNtfyNotification({body, title, type, url, thumbnail}) {
    });
 }

-// Gotify
-
 async function sendGotifyNotification({body, title, type, url, thumbnail}) {
    logger.verbose('Sending notification to gotify');
    await gotify({
@@ -150,50 +145,15 @@ async function sendGotifyNotification({body, title, type, url, thumbnail}) {
      });
 }

-// Telegram
-
-setupTelegramBot();
-config_api.config_updated.subscribe(change => {
-    const use_telegram_api = config_api.getConfigItem('ytdl_use_telegram_API');
-    const bot_token = config_api.getConfigItem('ytdl_telegram_bot_token');
-    if (!use_telegram_api || !bot_token) return;
-    if (!change) return;
-    if (change['key'] === 'ytdl_use_telegram_API' || change['key'] === 'ytdl_telegram_bot_token' || change['key'] === 'ytdl_telegram_webhook_proxy') {
-        logger.debug('Telegram bot setting up');
-        setupTelegramBot();
-    }
-});
-
-async function setupTelegramBot() {
-    const use_telegram_api = config_api.getConfigItem('ytdl_use_telegram_API');
-    const bot_token = config_api.getConfigItem('ytdl_telegram_bot_token');
-    if (!use_telegram_api || !bot_token) return;
-    
-    telegram_bot = new TelegramBotAPI(bot_token);
-    const webhook_proxy = config_api.getConfigItem('ytdl_telegram_webhook_proxy');
-    const webhook_url = webhook_proxy ? webhook_proxy : `${utils.getBaseURL()}/api/telegramRequest`;
-    telegram_bot.setWebHook(webhook_url);
-}
-
-exports.sendTelegramNotification = async ({body, title, type, url, thumbnail}) => {
-    if (!telegram_bot){
-        logger.error('Telegram bot not found!');
-        return;
-    }
-
-    const chat_id = config_api.getConfigItem('ytdl_telegram_chat_id');
-    if (!chat_id){
-        logger.error('Telegram chat ID required!');
-        return;
-    }
-    
+async function sendTelegramNotification({body, title, type, url, thumbnail}) {
    logger.verbose('Sending notification to Telegram');
-    if (thumbnail) await telegram_bot.sendPhoto(chat_id, thumbnail);
-    telegram_bot.sendMessage(chat_id, `<b>${title}</b>\n\n${body}\n<a href="${url}">${url}</a>`, {parse_mode: 'HTML'});
+    const bot_token = config_api.getConfigItem('ytdl_telegram_bot_token');
+    const chat_id = config_api.getConfigItem('ytdl_telegram_chat_id');
+    const bot = new TelegramBot(bot_token);
+    if (thumbnail) await bot.sendPhoto(chat_id, thumbnail);
+    bot.sendMessage(chat_id, `<b>${title}</b>\n\n${body}\n<a href="${url}">${url}</a>`, {parse_mode: 'HTML'});
 }

-// Discord
-
 async function sendDiscordNotification({body, title, type, url, thumbnail}) {
    const discord_webhook_url = config_api.getConfigItem('ytdl_discord_webhook_url');
    const url_split = discord_webhook_url.split('webhooks/');
@@ -217,8 +177,6 @@ async function sendDiscordNotification({body, title, type, url, thumbnail}) {
    return result;
 }

-// Slack
-
 function sendSlackNotification({body, title, type, url, thumbnail}) {
    const slack_webhook_url = config_api.getConfigItem('ytdl_slack_webhook_url');
    logger.verbose(`Sending slack notification to ${slack_webhook_url}`);
@@ -278,8 +236,6 @@ function sendSlackNotification({body, title, type, url, thumbnail}) {
    });
 }

-// Generic
-
 function sendGenericNotification(data) {
    const webhook_url = config_api.getConfigItem('ytdl_webhook_url');
    logger.verbose(`Sending generic notification to ${webhook_url}`);
--- a/backend/package.json
+++ b/backend/package.json
@@ -33,7 +33,6 @@
    "command-exists": "^1.2.9",
    "compression": "^1.7.4",
    "config": "^3.2.3",
-    "execa": "^5.1.1",
    "express": "^4.18.2",
    "express-session": "^1.17.3",
    "feed": "^4.2.2",
@@ -62,10 +61,10 @@
    "read-last-lines": "^1.7.2",
    "rxjs": "^7.3.0",
    "shortid": "^2.2.15",
-    "tree-kill": "^1.2.2",
    "unzipper": "^0.10.10",
    "uuidv4": "^6.2.13",
    "winston": "^3.7.2",
-    "xmlbuilder2": "^3.0.2"
+    "xmlbuilder2": "^3.0.2",
+    "youtube-dl": "^3.0.2"
  }
 }
--- a/backend/subscriptions.js
+++ b/backend/subscriptions.js
@@ -1,7 +1,7 @@
 const fs = require('fs-extra');
 const path = require('path');
+const youtubedl = require('youtube-dl');

-const youtubedl_api = require('./youtube-dl');
 const config_api = require('./config');
 const archive_api = require('./archive');
 const utils = require('./utils');
@@ -39,7 +39,7 @@ exports.subscribe = async (sub, user_uid = null, skip_get_info = false) => {
        exports.writeSubscriptionMetadata(sub);

        if (success) {
-            if (!sub.paused) exports.getVideosForSub(sub.id);
+            if (!sub.paused) exports.getVideosForSub(sub, user_uid);
        } else {
            logger.error('Subscribe: Failed to get subscription info. Subscribe failed.')
        }
@@ -63,41 +63,55 @@ async function getSubscriptionInfo(sub) {
        }
    }

-    let {callback} = await youtubedl_api.runYoutubeDL(sub.url, downloadConfig);
-    const {parsed_output, err} = await callback;
-    if (err) {
-        logger.error(err.stderr);
-        return false;
-    }
-    logger.verbose('Subscribe: got info for subscription ' + sub.id);
-    for (const output_json of parsed_output) {
-        if (!output_json) {
-            continue;
-        }
-
-        if (!sub.name) {
-            if (sub.isPlaylist) {
-                sub.name = output_json.playlist_title ? output_json.playlist_title : output_json.playlist;
-            } else {
-                sub.name = output_json.uploader;
+    return new Promise(async resolve => {
+        youtubedl.exec(sub.url, downloadConfig, {maxBuffer: Infinity}, async (err, output) => {
+            if (debugMode) {
+                logger.info('Subscribe: got info for subscription ' + sub.id);
            }
-            // if it's now valid, update
-            if (sub.name) {
-                let sub_name = sub.name;
-                const sub_name_exists = await db_api.getRecord('subscriptions', {name: sub.name, isPlaylist: sub.isPlaylist, user_uid: sub.user_uid});
-                if (sub_name_exists) sub_name += ` - ${sub.id}`;
-                await db_api.updateRecord('subscriptions', {id: sub.id}, {name: sub_name});
+            if (err) {
+                logger.error(err.stderr);
+                resolve(false);
+            } else if (output) {
+                if (output.length === 0 || (output.length === 1 && output[0] === '')) {
+                    logger.verbose('Could not get info for ' + sub.id);
+                    resolve(false);
+                }
+                for (let i = 0; i < output.length; i++) {
+                    let output_json = null;
+                    try {
+                        output_json = JSON.parse(output[i]);
+                    } catch(e) {
+                        output_json = null;
+                    }
+                    if (!output_json) {
+                        continue;
+                    }
+                    if (!sub.name) {
+                        if (sub.isPlaylist) {
+                            sub.name = output_json.playlist_title ? output_json.playlist_title : output_json.playlist;
+                        } else {
+                            sub.name = output_json.uploader;
+                        }
+                        // if it's now valid, update
+                        if (sub.name) {
+                            let sub_name = sub.name;
+                            const sub_name_exists = await db_api.getRecord('subscriptions', {name: sub.name, isPlaylist: sub.isPlaylist, user_uid: sub.user_uid});
+                            if (sub_name_exists) sub_name += ` - ${sub.id}`;
+                            await db_api.updateRecord('subscriptions', {id: sub.id}, {name: sub_name});
+                        }
+                    }
+
+                    // TODO: get even more info
+
+                    resolve(true);
+                }
+                resolve(false);
            }
-        }
-
-        return true;
-    }
-
-    return false;
+        });
+    });
 }

-exports.unsubscribe = async (sub_id, deleteMode, user_uid = null) => {
-    const sub = await exports.getSubscription(sub_id);
+exports.unsubscribe = async (sub, deleteMode, user_uid = null) => {
    let basePath = null;
    if (user_uid)
        basePath = path.join(config_api.getConfigItem('ytdl_users_base_path'), user_uid, 'subscriptions');
@@ -120,7 +134,6 @@ exports.unsubscribe = async (sub_id, deleteMode, user_uid = null) => {
        }
    }

-    await killSubDownloads(sub_id, true);
    await db_api.removeRecord('subscriptions', {id: id});
    await db_api.removeAllRecords('files', {sub_id: id});

@@ -205,18 +218,12 @@ exports.deleteSubscriptionFile = async (sub, file, deleteForever, file_uid = nul
    }
 }

-exports.getVideosForSub = async (sub_id) => {
-    const sub = await exports.getSubscription(sub_id);
-    if (!sub || sub['downloading']) {
+exports.getVideosForSub = async (sub, user_uid = null) => {
+    const latest_sub_obj = await exports.getSubscription(sub.id);
+    if (!latest_sub_obj || latest_sub_obj['downloading']) {
        return false;
    }

-    _getVideosForSub(sub);
-    return true;
-}
-
-async function _getVideosForSub(sub) {
-    const user_uid = sub['user_uid'];
    updateSubscriptionProperty(sub, {downloading: true}, user_uid);

    // get basePath
@@ -234,26 +241,33 @@ async function _getVideosForSub(sub) {
    // get videos
    logger.verbose(`Subscription: getting list of videos to download for ${sub.name} with args: ${downloadConfig.join(',')}`);

-    let {child_process, callback} = await youtubedl_api.runYoutubeDL(sub.url, downloadConfig);
-    updateSubscriptionProperty(sub, {child_process: child_process}, user_uid);
-    const {parsed_output, err} = await callback;
-    updateSubscriptionProperty(sub, {downloading: false, child_process: null}, user_uid);
-    if (!parsed_output) {
-        logger.error('Subscription check failed!');
-        if (err) logger.error(err);
-        return null;
-    }
+    return new Promise(async resolve => {
+        youtubedl.exec(sub.url, downloadConfig, {maxBuffer: Infinity}, async function(err, output) {
+            // cleanup
+            updateSubscriptionProperty(sub, {downloading: false}, user_uid);

-    // remove temporary archive file if it exists
-    const archive_path = path.join(appendedBasePath, 'archive.txt');
-    const archive_exists = await fs.pathExists(archive_path);
-    if (archive_exists) {
-        await fs.unlink(archive_path);
-    }
+            // remove temporary archive file if it exists
+            const archive_path = path.join(appendedBasePath, 'archive.txt');
+            const archive_exists = await fs.pathExists(archive_path);
+            if (archive_exists) {
+                await fs.unlink(archive_path);
+            }

-    logger.verbose('Subscription: finished check for ' + sub.name);
-    const files_to_download = await handleOutputJSON(parsed_output, sub, user_uid);
-    return files_to_download;
+            logger.verbose('Subscription: finished check for ' + sub.name);
+            const parsed_output = utils.parseOutputJSON(output, err);
+            if (!parsed_output) {
+                logger.error('Subscription check failed!');
+                resolve(null);
+                return;
+            }
+            const files_to_download = await handleOutputJSON(parsed_output, sub, user_uid);
+            resolve(files_to_download);
+            return;
+        });
+    }, err => {
+        logger.error(err);
+        updateSubscriptionProperty(sub, {downloading: false}, user_uid);
+    });
 }

 async function handleOutputJSON(output_jsons, sub, user_uid) {
@@ -374,7 +388,7 @@ async function generateArgsForSubscription(sub, user_uid, redownload = false, de
        downloadConfig.push('-r', rate_limit);
    }

-    const default_downloader = config_api.getConfigItem('ytdl_default_downloader');
+    const default_downloader = utils.getCurrentDownloader() || config_api.getConfigItem('ytdl_default_downloader');
    if (default_downloader === 'yt-dlp') {
        downloadConfig.push('--no-clean-info-json');
    }
@@ -405,37 +419,8 @@ async function getFilesToDownload(sub, output_jsons) {
    return files_to_download;
 }

-exports.cancelCheckSubscription = async (sub_id) => {
-    const sub = await exports.getSubscription(sub_id);
-    if (!sub['downloading'] && !sub['child_process']) {
-        logger.error('Failed to cancel subscription check, verify that it is still running!');
-        return false;
-    }
-
-    // if check is ongoing
-    if (sub['child_process']) {
-        const child_process = sub['child_process'];
-        youtubedl_api.killYoutubeDLProcess(child_process);
-    }
-
-    // cancel activate video downloads
-    await killSubDownloads(sub_id);
-
-    return true;
-}
-
-async function killSubDownloads(sub_id, remove_downloads = false) {
-    const sub_downloads = await db_api.getRecords('download_queue', {sub_id: sub_id});
-    for (const sub_download of sub_downloads) {
-        if (sub_download['running'])
-            await downloader_api.cancelDownload(sub_download['uid']);
-        if (remove_downloads)
-            await db_api.removeRecord('download_queue', {uid: sub_download['uid']});
-    }
-}

 exports.getSubscriptions = async (user_uid = null) => {
-    // TODO: fix issue where the downloading property may not match getSubscription()
    return await db_api.getRecords('subscriptions', {user_uid: user_uid});
 }

@@ -514,22 +499,24 @@ async function checkVideoIfBetterExists(file_obj, sub, user_uid) {
    const downloadConfig = await generateArgsForSubscription(sub, user_uid, true, new_path);
    logger.verbose(`Checking if a better version of the fresh upload ${file_obj['id']} exists.`);
    // simulate a download to verify that a better version exists
-    
-    const info = await downloader_api.getVideoInfoByURL(file_obj['url'], downloadConfig);
-    if (info && info.length === 1) {
-        const metric_to_compare = sub.type === 'audio' ? 'abr' : 'height';
-        if (info[metric_to_compare] > file_obj[metric_to_compare]) {
-            // download new video as the simulated one is better
-            let {callback} = await youtubedl_api.runYoutubeDL(sub.url, downloadConfig);
-            const {parsed_output, err} = await callback;
-            if (err) {
-                logger.verbose(`Failed to download better version of video ${file_obj['id']}`);
-            } else if (parsed_output) {
-                logger.verbose(`Successfully upgraded video ${file_obj['id']}'s ${metric_to_compare} from ${file_obj[metric_to_compare]} to ${info[metric_to_compare]}`);
-                await db_api.setVideoProperty(file_obj['uid'], {[metric_to_compare]: info[metric_to_compare]});
-            }
-        } 
-    }
+    youtubedl.getInfo(file_obj['url'], downloadConfig, async (err, output) => {
+        if (err) {
+            // video is not available anymore for whatever reason
+        } else if (output) {
+            const metric_to_compare = sub.type === 'audio' ? 'abr' : 'height';
+            if (output[metric_to_compare] > file_obj[metric_to_compare]) {
+                // download new video as the simulated one is better
+                youtubedl.exec(file_obj['url'], downloadConfig, {maxBuffer: Infinity}, async (err, output) => {
+                    if (err) {
+                        logger.verbose(`Failed to download better version of video ${file_obj['id']}`);
+                    } else if (output) {
+                        logger.verbose(`Successfully upgraded video ${file_obj['id']}'s ${metric_to_compare} from ${file_obj[metric_to_compare]} to ${output[metric_to_compare]}`);
+                        await db_api.setVideoProperty(file_obj['uid'], {[metric_to_compare]: output[metric_to_compare]});
+                    }
+                });
+            } 
+        }
+    });
    await db_api.setVideoProperty(file_obj['uid'], {'fresh_upload': false});
 }

--- a/backend/test/tests.js
+++ b/backend/test/tests.js
@@ -4,9 +4,6 @@ const low = require('lowdb')
 const winston = require('winston');
 const path = require('path');
 const util = require('util');
-const fs = require('fs-extra');
-const { uuid } = require('uuidv4');
-const NodeID3 = require('node-id3');
 const exec = util.promisify(require('child_process').exec);

 const FileSync = require('lowdb/adapters/FileSync');
@@ -47,7 +44,9 @@ const categories_api = require('../categories');
 const files_api = require('../files');
 const youtubedl_api = require('../youtube-dl');
 const config_api = require('../config');
-const CONSTS = require('../consts');
+const fs = require('fs-extra');
+const { uuid } = require('uuidv4');
+const NodeID3 = require('node-id3');

 db_api.initialize(db, users_db, 'local_db_test.json');

@@ -402,7 +401,7 @@ describe('Multi User', async function() {
        });

        it('Subscription zip generator', async function() {
-            const sub = await subscriptions_api.getSubscription(sub_to_test.id, user_to_test);
+            const sub = await subscriptions_api.getSubscription(sub_to_test, user_to_test);
            const sub_videos = await db_api.getRecords('files', {sub_id: sub.id});
            assert(sub);
            const sub_files_to_download = [];
@@ -442,34 +441,11 @@ describe('Multi User', async function() {
 describe('Downloader', function() {
    const downloader_api = require('../downloader');
    const url = 'https://www.youtube.com/watch?v=hpigjnKl7nI';
-    const playlist_url = 'https://www.youtube.com/playlist?list=PLbZT16X07RLhqK-ZgSkRuUyiz9B_WLdNK';
    const sub_id = 'dc834388-3454-41bf-a618-e11cb8c7de1c';
    const options = {
        ui_uid: uuid()
    }

-    async function createCategory(url) {
-        // get info
-        const args = await downloader_api.generateArgs(url, 'video', options, null, true);
-        const [info] = await downloader_api.getVideoInfoByURL(url, args);
-
-        // create category
-        await db_api.removeAllRecords('categories');
-        const new_category = {
-            name: 'test_category',
-            uid: uuid(),
-            rules: [],
-            custom_output: ''
-        };
-        await db_api.insertRecordIntoTable('categories', new_category);
-        await db_api.pushToRecordsArray('categories', {name: 'test_category'}, 'rules', {
-            preceding_operator: null,
-            comparator: 'includes',
-            property: 'title',
-            value: info['title']
-        });
-    }
-
    before(async function() {
        const update_available = await youtubedl_api.checkForYoutubeDLUpdate();
        if (update_available) await youtubedl_api.updateYoutubeDL(update_available);
@@ -479,7 +455,6 @@ describe('Downloader', function() {
    beforeEach(async function() {
        // await db_api.connectToDB();
        await db_api.removeAllRecords('download_queue');
-        config_api.setConfigItem('ytdl_allow_playlist_categorization', true);
    });

    it('Get file info', async function() {
@@ -505,32 +480,6 @@ describe('Downloader', function() {
        assert(success);
    });

-    it('Downloader - categorize', async function() {
-        this.timeout(300000);
-        await createCategory(url);
-        // collect info
-        const returned_download = await downloader_api.createDownload(url, 'video', options);
-        await downloader_api.collectInfo(returned_download['uid']);
-        assert(returned_download['category']);
-        assert(returned_download['category']['name'] === 'test_category');
-    });
-
-    it('Downloader - categorize playlist', async function() {
-        this.timeout(300000);
-        await createCategory(playlist_url);
-        // collect info
-        const returned_download_pass = await downloader_api.createDownload(playlist_url, 'video', options);
-        await downloader_api.collectInfo(returned_download_pass['uid']);
-        assert(returned_download_pass['category']);
-        assert(returned_download_pass['category']['name'] === 'test_category');
-
-        // test with playlist categorization disabled
-        config_api.setConfigItem('ytdl_allow_playlist_categorization', false);
-        const returned_download_fail = await downloader_api.createDownload(playlist_url, 'video', options);
-        await downloader_api.collectInfo(returned_download_fail['uid']);
-        assert(!returned_download_fail['category']);
-    });
-
    it('Tag file', async function() {
        const success = await generateEmptyAudioFile('test/sample_mp3.mp3');
        const audio_path = './test/sample_mp3.mp3';
@@ -603,7 +552,7 @@ describe('Downloader', function() {
    });
    describe('Twitch', async function () {
        const twitch_api = require('../twitch');
-        const example_vod = '1790315420';
+        const example_vod = '1710641401';
        it('Download VOD chat', async function() {
            this.timeout(300000);
            if (!fs.existsSync('TwitchDownloaderCLI')) {
@@ -625,105 +574,6 @@ describe('Downloader', function() {
    });
 });

-describe('youtube-dl', async function() {
-    beforeEach(async function () {
-        if (fs.existsSync(CONSTS.DETAILS_BIN_PATH)) fs.unlinkSync(CONSTS.DETAILS_BIN_PATH);
-        await youtubedl_api.checkForYoutubeDLUpdate();
-    });
-    it('Check latest version', async function() {
-        this.timeout(300000);
-        const original_fork = config_api.getConfigItem('ytdl_default_downloader');
-        const latest_version = await youtubedl_api.getLatestUpdateVersion(original_fork);
-        assert(latest_version > CONSTS.OUTDATED_YOUTUBEDL_VERSION);
-    });
-
-    it('Update youtube-dl', async function() {
-        this.timeout(300000);
-        const original_fork = config_api.getConfigItem('ytdl_default_downloader');
-        const binary_path = path.join('test', 'test_binary');
-        for (const youtubedl_fork in youtubedl_api.youtubedl_forks) {
-            config_api.setConfigItem('ytdl_default_downloader', youtubedl_fork);
-            const latest_version = await youtubedl_api.checkForYoutubeDLUpdate();
-            await youtubedl_api.updateYoutubeDL(latest_version, binary_path);
-            assert(fs.existsSync(binary_path));
-            if (fs.existsSync(binary_path)) fs.unlinkSync(binary_path);
-        }
-        config_api.setConfigItem('ytdl_default_downloader', original_fork);
-    });
-
-    it('Run process', async function() {
-        this.timeout(300000);
-        const downloader_api = require('../downloader');
-        const url = 'https://www.youtube.com/watch?v=hpigjnKl7nI';
-        const args = await downloader_api.generateArgs(url, 'video', {}, null, true);
-        const {child_process} = await youtubedl_api.runYoutubeDL(url, args);
-        assert(child_process);
-    });
-});
-
-describe('Subscriptions', function() {
-    const new_sub = {
-        name: 'test_sub',
-        url: 'https://www.youtube.com/channel/UCzofo-P8yMMCOv8rsPfIR-g',
-        maxQuality: null,
-        id: uuid(),
-        user_uid: null,
-        type: 'video',
-        paused: true
-    };
-    beforeEach(async function() {
-        await db_api.removeAllRecords('subscriptions');
-    });
-    it('Subscribe', async function () {
-        const success = await subscriptions_api.subscribe(new_sub, null, true);
-        assert(success);
-        const sub_exists = await db_api.getRecord('subscriptions', {id: new_sub['id']});
-        assert(sub_exists);
-    });
-    it('Unsubscribe', async function () {
-        await subscriptions_api.subscribe(new_sub, null, true);
-        await subscriptions_api.unsubscribe(new_sub);
-        const sub_exists = await db_api.getRecord('subscriptions', {id: new_sub['id']});
-        assert(!sub_exists);
-    });
-    it('Delete subscription file', async function () {
-        
-    });
-    it('Get subscription by name', async function () {
-        await subscriptions_api.subscribe(new_sub, null, true);
-        const sub_by_name = await subscriptions_api.getSubscriptionByName('test_sub');
-        assert(sub_by_name);
-    });
-    it('Get subscriptions', async function() {
-        await subscriptions_api.subscribe(new_sub, null, true);
-        const subs = await subscriptions_api.getSubscriptions(null);
-        assert(subs && subs.length === 1);
-    });
-    it('Update subscription', async function () {
-        await subscriptions_api.subscribe(new_sub, null, true);
-        const sub_update = Object.assign({}, new_sub, {name: 'updated_name'});
-        await subscriptions_api.updateSubscription(sub_update);
-        const updated_sub = await db_api.getRecord('subscriptions', {id: new_sub['id']});
-        assert(updated_sub['name'] === 'updated_name');
-    });
-    it('Update subscription property', async function () {
-        await subscriptions_api.subscribe(new_sub, null, true);
-        const sub_update = Object.assign({}, new_sub, {name: 'updated_name'});
-        await subscriptions_api.updateSubscriptionPropertyMultiple([sub_update], {name: 'updated_name'});
-        const updated_sub = await db_api.getRecord('subscriptions', {id: new_sub['id']});
-        assert(updated_sub['name'] === 'updated_name');
-    });
-    it('Write subscription metadata', async function() {
-        const metadata_path = path.join('subscriptions', 'channels', 'test_sub', 'subscription_backup.json');
-        if (fs.existsSync(metadata_path)) fs.unlinkSync(metadata_path);
-        await subscriptions_api.subscribe(new_sub, null, true);
-        assert(fs.existsSync(metadata_path));
-    });
-    it('Fresh uploads', async function() {
-
-    });
-});
-
 describe('Tasks', function() {
    const tasks_api = require('../tasks');
    beforeEach(async function() {
@@ -785,7 +635,7 @@ describe('Tasks', function() {
        const success = await generateEmptyVideoFile('test/sample_mp4.mp4');

        // pre-test cleanup
-        await db_api.removeAllRecords('files', {path: 'test/missing_file.mp4'});
+        await db_api.removeAllRecords('files', {title: 'Sample File'});
        if (fs.existsSync('video/sample_mp4.info.json')) fs.unlinkSync('video/sample_mp4.info.json');
        if (fs.existsSync('video/sample_mp4.mp4'))       fs.unlinkSync('video/sample_mp4.mp4');

@@ -942,7 +792,7 @@ describe('Categories', async function() {
            rules: [],
            custom_output: ''
        };
-        await db_api.removeAllRecords('categories', {name: 'test_category'});
+    
        await db_api.insertRecordIntoTable('categories', new_category);
    });

@@ -1037,66 +887,6 @@ describe('Categories', async function() {
    });
 });

-describe('Config', async function() {
-    it('findChangedConfigItems', async function() {
-        const old_config = {
-            "YoutubeDLMaterial": {
-                "test_object1": {
-                    "test_prop1": true,
-                    "test_prop2": false
-                },
-                "test_object2": {
-                    "test_prop3": {
-                        "test_prop3_1": true,
-                        "test_prop3_2": false
-                    },
-                    "test_prop4": false
-                },
-                "test_object3": {
-                    "test_prop5": {
-                        "test_prop5_1": true,
-                        "test_prop5_2": false
-                    },
-                    "test_prop6": false
-                }
-            }
-        };
-
-        const new_config = {
-            "YoutubeDLMaterial": {
-                "test_object1": {
-                    "test_prop1": false,
-                    "test_prop2": false
-                },
-                "test_object2": {
-                    "test_prop3": {
-                        "test_prop3_1": false,
-                        "test_prop3_2": false
-                    },
-                    "test_prop4": true
-                },
-                "test_object3": {
-                    "test_prop5": {
-                        "test_prop5_1": true,
-                        "test_prop5_2": false
-                    },
-                    "test_prop6": true
-                }
-            }
-        };
-
-        const changes = config_api.findChangedConfigItems(old_config, new_config);
-        assert(changes[0]['key'] === 'test_prop1' && changes[0]['old_value'] === true && changes[0]['new_value'] === false);
-        assert(changes[1]['key'] === 'test_prop3' &&
-                changes[1]['old_value']['test_prop3_1'] === true &&
-                changes[1]['new_value']['test_prop3_1'] === false &&
-                changes[1]['old_value']['test_prop3_2'] === false &&
-                changes[1]['new_value']['test_prop3_2'] === false);
-        assert(changes[2]['key'] === 'test_prop4' && changes[2]['old_value'] === false && changes[2]['new_value'] === true);
-        assert(changes[3]['key'] === 'test_prop6' && changes[3]['old_value'] === false && changes[3]['new_value'] === true);
-    });
-});
-
 const generateEmptyVideoFile = async (file_path) => {
    if (fs.existsSync(file_path)) fs.unlinkSync(file_path);
    return await exec(`ffmpeg -t 1 -f lavfi -i color=c=black:s=640x480 -c:v libx264 -tune stillimage -pix_fmt yuv420p "${file_path}"`);
--- a/backend/utils.js
+++ b/backend/utils.js
@@ -241,6 +241,11 @@ exports.addUIDsToCategory = (category, files) => {
    return files_that_match;
 }

+exports.getCurrentDownloader = () => {
+    const details_json = fs.readJSONSync(CONSTS.DETAILS_BIN_PATH);
+    return details_json['downloader'];
+}
+
 exports.recFindByExt = async (base, ext, files, result, recursive = true) => {
    files = files || (await fs.readdir(base))
    result = result || []
--- a/backend/youtube-dl.js
+++ b/backend/youtube-dl.js
@@ -1,159 +1,151 @@
 const fs = require('fs-extra');
 const fetch = require('node-fetch');
-const path = require('path');
-const execa = require('execa');
-const kill = require('tree-kill');

 const logger = require('./logger');
 const utils = require('./utils');
 const CONSTS = require('./consts');
 const config_api = require('./config.js');
+const youtubedl = require('youtube-dl');
+
+const OUTDATED_VERSION = "2020.00.00";

 const is_windows = process.platform === 'win32';

-exports.youtubedl_forks = {
+const download_sources = {
    'youtube-dl': {
-        'download_url': 'https://github.com/ytdl-org/youtube-dl/releases/latest/download/youtube-dl',
-        'tags_url': 'https://api.github.com/repos/ytdl-org/youtube-dl/tags'
+        'tags_url': 'https://api.github.com/repos/ytdl-org/youtube-dl/tags',
+        'func': downloadLatestYoutubeDLBinary
    },
    'youtube-dlc': {
-        'download_url': 'https://github.com/blackjack4494/yt-dlc/releases/latest/download/youtube-dlc',
-        'tags_url': 'https://api.github.com/repos/blackjack4494/yt-dlc/tags'
+        'tags_url': 'https://api.github.com/repos/blackjack4494/yt-dlc/tags',
+        'func': downloadLatestYoutubeDLCBinary
    },
    'yt-dlp': {
-        'download_url': 'https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp',
-        'tags_url': 'https://api.github.com/repos/yt-dlp/yt-dlp/tags'
+        'tags_url': 'https://api.github.com/repos/yt-dlp/yt-dlp/tags',
+        'func': downloadLatestYoutubeDLPBinary
    }
 }

-exports.runYoutubeDL = async (url, args, customDownloadHandler = null) => {
-    const output_file_path = getYoutubeDLPath();
-    if (!fs.existsSync(output_file_path)) await exports.checkForYoutubeDLUpdate();
-    let callback = null;
-    let child_process = null;
-    if (customDownloadHandler) {
-        callback = runYoutubeDLCustom(url, args, customDownloadHandler);
-    } else {
-        ({callback, child_process} = await runYoutubeDLProcess(url, args));
-    }
-
-    return {child_process, callback};
-}
-
-// Run youtube-dl directly (not cancellable)
-const runYoutubeDLCustom = async (url, args, customDownloadHandler) => {
-    const downloadHandler = customDownloadHandler;
+exports.runYoutubeDL = async (url, args, downloadMethod = youtubedl.exec) => {
    return new Promise(resolve => {
-        downloadHandler(url, args, {maxBuffer: Infinity}, async function(err, output) {
+        downloadMethod(url, args, {maxBuffer: Infinity}, async function(err, output) {
            const parsed_output = utils.parseOutputJSON(output, err);
            resolve({parsed_output, err});
        });
    });
 }

-// Run youtube-dl in a subprocess (cancellable)
-const runYoutubeDLProcess = async (url, args, youtubedl_fork = config_api.getConfigItem('ytdl_default_downloader')) => {
-    const youtubedl_path = getYoutubeDLPath(youtubedl_fork);
-    const binary_exists = fs.existsSync(youtubedl_path);
-    if (!binary_exists) {
-        const err = `Could not find path for ${youtubedl_fork} at ${youtubedl_path}`;
-        logger.error(err);
-        return;
-    }
-    const child_process = execa(getYoutubeDLPath(youtubedl_fork), [url, ...args], {maxBuffer: Infinity});
-    const callback = new Promise(async resolve => {
-        try {
-            const {stdout, stderr} = await child_process;
-            const parsed_output = utils.parseOutputJSON(stdout.trim().split(/\r?\n/), stderr);
-            resolve({parsed_output, err: stderr});
-        } catch (e) {
-            resolve({parsed_output: null, err: e})
-        }
-    });
-    return {child_process, callback}
-}
-
-function getYoutubeDLPath(youtubedl_fork = config_api.getConfigItem('ytdl_default_downloader')) {
-    const binary_file_name = youtubedl_fork + (is_windows ? '.exe' : '');
-    const binary_path = path.join('appdata', 'bin', binary_file_name);
-    return binary_path;
-}
-
-exports.killYoutubeDLProcess = async (child_process) => {
-    kill(child_process.pid, 'SIGKILL');
-}
-
 exports.checkForYoutubeDLUpdate = async () => {
-    const selected_fork = config_api.getConfigItem('ytdl_default_downloader');
-    const output_file_path = getYoutubeDLPath();
-    // get current version
-    let current_app_details_exists = fs.existsSync(CONSTS.DETAILS_BIN_PATH);
-    if (!current_app_details_exists) {
-        logger.warn(`Failed to get youtube-dl binary details at location '${CONSTS.DETAILS_BIN_PATH}'. Generating file...`);
-        updateDetailsJSON(CONSTS.OUTDATED_YOUTUBEDL_VERSION, selected_fork, output_file_path);
-    }
-    const current_app_details = JSON.parse(fs.readFileSync(CONSTS.DETAILS_BIN_PATH));
-    const current_version = current_app_details['version'];
-    const current_fork = current_app_details['downloader'];
+    return new Promise(async resolve => {
+        const default_downloader = config_api.getConfigItem('ytdl_default_downloader');
+        const tags_url = download_sources[default_downloader]['tags_url'];
+        // get current version
+        let current_app_details_exists = fs.existsSync(CONSTS.DETAILS_BIN_PATH);
+        if (!current_app_details_exists) {
+            logger.warn(`Failed to get youtube-dl binary details at location '${CONSTS.DETAILS_BIN_PATH}'. Generating file...`);
+            fs.writeJSONSync(CONSTS.DETAILS_BIN_PATH, {"version": OUTDATED_VERSION, "downloader": default_downloader});
+        }
+        let current_app_details = JSON.parse(fs.readFileSync(CONSTS.DETAILS_BIN_PATH));
+        let current_version = current_app_details['version'];
+        let current_downloader = current_app_details['downloader'];
+        let stored_binary_path = current_app_details['path'];
+        if (!stored_binary_path || typeof stored_binary_path !== 'string') {
+            // logger.info(`INFO: Failed to get youtube-dl binary path at location: ${CONSTS.DETAILS_BIN_PATH}, attempting to guess actual path...`);
+            const guessed_base_path = 'node_modules/youtube-dl/bin/';
+            const guessed_file_path = guessed_base_path + 'youtube-dl' + (is_windows ? '.exe' : '');
+            if (fs.existsSync(guessed_file_path)) {
+                stored_binary_path = guessed_file_path;
+                // logger.info('INFO: Guess successful! Update process continuing...')
+            } else {
+                logger.error(`Guess '${guessed_file_path}' is not correct. Cancelling update check. Verify that your youtube-dl binaries exist by running npm install.`);
+                resolve(null);
+                return;
+            }
+        }

-    const latest_version = await exports.getLatestUpdateVersion(selected_fork);
-    // if the binary does not exist, or default_downloader doesn't match existing fork, or if the fork has been updated, redownload
-    // TODO: don't redownload if fork already exists
-    if (!fs.existsSync(output_file_path) || current_fork !== selected_fork || !current_version || current_version !== latest_version) {
-        logger.warn(`Updating ${selected_fork} binary to '${output_file_path}', downloading...`);
-        await exports.updateYoutubeDL(latest_version);
-    }
-}
+        // got version, now let's check the latest version from the youtube-dl API

-exports.updateYoutubeDL = async (latest_update_version, custom_output_path = null) => {
-    await fs.ensureDir(path.join('appdata', 'bin'));
-    const default_downloader = config_api.getConfigItem('ytdl_default_downloader');
-    await downloadLatestYoutubeDLBinaryGeneric(default_downloader, latest_update_version, custom_output_path);
-}

-async function downloadLatestYoutubeDLBinaryGeneric(youtubedl_fork, new_version, custom_output_path = null) {
-    const file_ext = is_windows ? '.exe' : '';
-
-    // build the URL
-    const download_url = `${exports.youtubedl_forks[youtubedl_fork]['download_url']}${file_ext}`;
-    const output_path = custom_output_path || getYoutubeDLPath(youtubedl_fork);
-
-    await utils.fetchFile(download_url, output_path, `${youtubedl_fork} ${new_version}`);
-    fs.chmod(output_path, 0o777);
-
-    updateDetailsJSON(new_version, youtubedl_fork, output_path);
-} 
-
-exports.getLatestUpdateVersion = async (youtubedl_fork) => {
-    const tags_url = exports.youtubedl_forks[youtubedl_fork]['tags_url'];
-    return new Promise(resolve => {
        fetch(tags_url, {method: 'Get'})
        .then(async res => res.json())
        .then(async (json) => {
+            // check if the versions are different
            if (!json || !json[0]) {
-                logger.error(`Failed to check ${youtubedl_fork} version for an update.`)
+                logger.error(`Failed to check ${default_downloader} version for an update.`)
                resolve(null);
                return;
            }
            const latest_update_version = json[0]['name'];
-            resolve(latest_update_version);
+            if (current_version !== latest_update_version || default_downloader !== current_downloader) {
+                // versions different or different downloader is being used, download new update
+                resolve(latest_update_version);
+            } else {
+                resolve(null);
+            }
+            return;
        })
        .catch(err => {
-            logger.error(`Failed to check ${youtubedl_fork} version for an update.`)
+            logger.error(`Failed to check ${default_downloader} version for an update.`)
            logger.error(err);
            resolve(null);
+            return;
        });
    });
 }

-function updateDetailsJSON(new_version, fork, output_path) {
+exports.updateYoutubeDL = async (latest_update_version) => {
+    const default_downloader = config_api.getConfigItem('ytdl_default_downloader');
+    await download_sources[default_downloader]['func'](latest_update_version);
+}
+
+exports.verifyBinaryExistsLinux = () => {
+    const details_json = fs.readJSONSync(CONSTS.DETAILS_BIN_PATH);
+    if (!is_windows && details_json && (!details_json['path'] || details_json['path'].includes('.exe'))) {
+        details_json['path'] = 'node_modules/youtube-dl/bin/youtube-dl';
+        details_json['exec'] = 'youtube-dl';
+        details_json['version'] = OUTDATED_VERSION;
+        fs.writeJSONSync(CONSTS.DETAILS_BIN_PATH, details_json);
+
+        utils.restartServer();
+    }
+}
+
+async function downloadLatestYoutubeDLBinary(new_version) {
    const file_ext = is_windows ? '.exe' : '';
-    const details_json = fs.existsSync(CONSTS.DETAILS_BIN_PATH) ? fs.readJSONSync(CONSTS.DETAILS_BIN_PATH) : {};
-    if (!details_json[fork]) details_json[fork] = {};
-    const fork_json = details_json[fork];
-    fork_json['version'] = new_version;
-    fork_json['downloader'] = fork;
-    fork_json['path'] = output_path; // unused
-    fork_json['exec'] = fork + file_ext; // unused
+
+    const download_url = `https://github.com/ytdl-org/youtube-dl/releases/latest/download/youtube-dl${file_ext}`;
+    const output_path = `node_modules/youtube-dl/bin/youtube-dl${file_ext}`;
+
+    await utils.fetchFile(download_url, output_path, `youtube-dl ${new_version}`);
+
+    updateDetailsJSON(new_version, 'youtube-dl');
+}
+
+async function downloadLatestYoutubeDLCBinary(new_version) {
+    const file_ext = is_windows ? '.exe' : '';
+
+    const download_url = `https://github.com/blackjack4494/yt-dlc/releases/latest/download/youtube-dlc${file_ext}`;
+    const output_path = `node_modules/youtube-dl/bin/youtube-dl${file_ext}`;
+
+    await utils.fetchFile(download_url, output_path, `youtube-dlc ${new_version}`);
+
+    updateDetailsJSON(new_version, 'youtube-dlc');
+}
+
+async function downloadLatestYoutubeDLPBinary(new_version) {
+    const file_ext = is_windows ? '.exe' : '';
+
+    const download_url = `https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp${file_ext}`;
+    const output_path = `node_modules/youtube-dl/bin/youtube-dl${file_ext}`;
+
+    await utils.fetchFile(download_url, output_path, `yt-dlp ${new_version}`);
+
+    updateDetailsJSON(new_version, 'yt-dlp');
+}
+
+function updateDetailsJSON(new_version, downloader) {
+    const details_json = fs.readJSONSync(CONSTS.DETAILS_BIN_PATH);
+    if (new_version) details_json['version'] = new_version;
+    details_json['downloader'] = downloader;
    fs.writeJSONSync(CONSTS.DETAILS_BIN_PATH, details_json);
 }
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
  "name": "youtube-dl-material",
-  "version": "4.3.1",
+  "version": "4.3.2",
  "lockfileVersion": 1,
  "requires": true,
  "dependencies": {
@@ -11647,9 +11647,9 @@
      }
    },
    "socket.io-parser": {
-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.2.tgz",
-      "integrity": "sha512-DJtziuKypFkMMHCm2uIshOYC7QaylbtzQwiMYDuCKy3OPkjLzu4B2vAhTlqipRHHzrI0NJeBAizTK7X+6m1jVw==",
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.4.tgz",
+      "integrity": "sha512-/GbIKmo8ioc+NIWIhwdecY0ge+qVBSMdgxGygevmdHj24bsfgtCmcUUcQ5ZzcylGFHsN3k4HB4Cgkl96KVnuew==",
      "dev": true,
      "requires": {
        "@socket.io/component-emitter": "~3.1.0",
--- a/src/api-types/index.ts
+++ b/src/api-types/index.ts
@@ -14,7 +14,6 @@ export type { ChangeRolePermissionsRequest } from './models/ChangeRolePermission
 export type { ChangeUserPermissionsRequest } from './models/ChangeUserPermissionsRequest';
 export type { CheckConcurrentStreamRequest } from './models/CheckConcurrentStreamRequest';
 export type { CheckConcurrentStreamResponse } from './models/CheckConcurrentStreamResponse';
-export type { CheckSubscriptionRequest } from './models/CheckSubscriptionRequest';
 export type { ClearDownloadsRequest } from './models/ClearDownloadsRequest';
 export type { ConcurrentStream } from './models/ConcurrentStream';
 export type { Config } from './models/Config';
--- a/src/api-types/models/CheckSubscriptionRequest.ts
+++ b/src/api-types/models/CheckSubscriptionRequest.ts
@@ -1,7 +0,0 @@
-/* istanbul ignore file */
-/* tslint:disable */
-/* eslint-disable */
-
-export type CheckSubscriptionRequest = {
-    sub_id: string;
-};
--- a/src/api-types/models/Download.ts
+++ b/src/api-types/models/Download.ts
@@ -8,7 +8,6 @@ export type Download = {
    running: boolean;
    finished: boolean;
    paused: boolean;
-    cancelled?: boolean;
    finished_step: boolean;
    url: string;
    type: string;
--- a/src/api-types/models/Subscription.ts
+++ b/src/api-types/models/Subscription.ts
@@ -11,12 +11,9 @@ export type Subscription = {
    type: FileType;
    user_uid: string | null;
    isPlaylist: boolean;
-    child_process?: any;
    archive?: string;
    timerange?: string;
    custom_args?: string;
    custom_output?: string;
-    downloading?: boolean;
-    paused?: boolean;
    videos: Array<any>;
 };
--- a/src/api-types/models/UnsubscribeRequest.ts
+++ b/src/api-types/models/UnsubscribeRequest.ts
@@ -2,8 +2,10 @@
 /* tslint:disable */
 /* eslint-disable */

+import type { SubscriptionRequestData } from './SubscriptionRequestData';
+
 export type UnsubscribeRequest = {
-    sub_id: string;
+    sub: SubscriptionRequestData;
    /**
     * Defaults to false
     */
--- a/src/app/components/downloads/downloads.component.ts
+++ b/src/app/components/downloads/downloads.component.ts
@@ -69,7 +69,8 @@ export class DownloadsComponent implements OnInit, OnDestroy {
      tooltip: $localize`Pause`,
      action: (download: Download) => this.pauseDownload(download),
      show: (download: Download) => !download.finished && (!download.paused || !download.finished_step),
-      icon: 'pause'
+      icon: 'pause',
+      loading: (download: Download) => download.paused && !download.finished_step
    },
    {
      tooltip: $localize`Resume`,
@@ -80,7 +81,7 @@ export class DownloadsComponent implements OnInit, OnDestroy {
    {
      tooltip: $localize`Cancel`,
      action: (download: Download) => this.cancelDownload(download),
-      show: (download: Download) => !download.finished && !download.paused && !download.cancelled,
+      show: (download: Download) => false && !download.finished && !download.paused, // TODO: add possibility to cancel download
      icon: 'cancel'
    },
    {
--- a/src/app/dialogs/subscription-info-dialog/subscription-info-dialog.component.ts
+++ b/src/app/dialogs/subscription-info-dialog/subscription-info-dialog.component.ts
@@ -2,7 +2,6 @@ import { Component, OnInit, Inject } from '@angular/core';
 import { MatDialog, MatDialogRef, MAT_DIALOG_DATA } from '@angular/material/dialog';
 import { PostsService } from 'app/posts.services';
 import { ConfirmDialogComponent } from '../confirm-dialog/confirm-dialog.component';
-import { Subscription } from 'api-types';

@Component({
  selector: 'app-subscription-info-dialog',
@@ -11,7 +10,7 @@ import { Subscription } from 'api-types';
 })
 export class SubscriptionInfoDialogComponent implements OnInit {

-  sub: Subscription = null;
+  sub = null;
  unsubbedEmitter = null;

  constructor(public dialogRef: MatDialogRef<SubscriptionInfoDialogComponent>,
@@ -42,7 +41,7 @@ export class SubscriptionInfoDialogComponent implements OnInit {
  }

  unsubscribe() {
-    this.postsService.unsubscribe(this.sub.id, true).subscribe(res => {
+    this.postsService.unsubscribe(this.sub, true).subscribe(res => {
      this.unsubbedEmitter.emit(true);
      this.dialogRef.close();
    });
--- a/src/app/main/main.component.ts
+++ b/src/app/main/main.component.ts
@@ -169,8 +169,6 @@ export class MainComponent implements OnInit {
  argsChangedSubject: Subject<boolean> = new Subject<boolean>();
  simulatedOutput = '';

-  interval_id = null;
-
  constructor(public postsService: PostsService, private youtubeSearch: YoutubeSearchService, public snackBar: MatSnackBar,
    private router: Router, public dialog: MatDialog, private platform: Platform, private route: ActivatedRoute) {
    this.audioOnly = false;
@@ -234,12 +232,11 @@ export class MainComponent implements OnInit {
    }

    // get downloads routine
-    if (this.interval_id) { clearInterval(this.interval_id) }
-    this.interval_id = setInterval(() => {
+    setInterval(() => {
      if (this.current_download) {
        this.getCurrentDownload();
      }
-    }, 1000);
+    }, 500);

    return true;
  }
@@ -297,10 +294,6 @@ export class MainComponent implements OnInit {
    }
  }

-  ngOnDestroy(): void {
-    if (this.interval_id) { clearInterval(this.interval_id) }
-  }
-
  // download helpers
  downloadHelper(container: DatabaseFile | Playlist, type: string, is_playlist = false, force_view = false, navigate_mode = false): void {
    this.downloadingfile = false;
--- a/src/app/posts.services.ts
+++ b/src/app/posts.services.ts
@@ -113,8 +113,7 @@ import {
    Archive,
    Subscription,
    RestartDownloadResponse,
-    TaskType,
-    CheckSubscriptionRequest
+    TaskType
 } from '../api-types';
 import { isoLangs } from './dialogs/user-profile-dialog/locales_list';
 import { Title } from '@angular/platform-browser';
@@ -567,18 +566,8 @@ export class PostsService implements CanActivate {
        return this.http.post<SuccessObject>(this.path + 'updateSubscription', {subscription: subscription}, this.httpOptions);
    }

-    checkSubscription(sub_id: string) {
-        const body: CheckSubscriptionRequest = {sub_id: sub_id};
-        return this.http.post<SuccessObject>(this.path + 'checkSubscription', body, this.httpOptions);
-    }
-
-    cancelCheckSubscription(sub_id: string) {
-        const body: CheckSubscriptionRequest = {sub_id: sub_id};
-        return this.http.post<SuccessObject>(this.path + 'cancelCheckSubscription', body, this.httpOptions);
-    }
-
-    unsubscribe(sub_id: string, deleteMode = false) {
-        const body: UnsubscribeRequest = {sub_id: sub_id, deleteMode: deleteMode};
+    unsubscribe(sub: SubscriptionRequestData, deleteMode = false) {
+        const body: UnsubscribeRequest = {sub: sub, deleteMode: deleteMode};
        return this.http.post<UnsubscribeResponse>(this.path + 'unsubscribe', body, this.httpOptions)
    }

--- a/src/app/settings/settings.component.html
+++ b/src/app/settings/settings.component.html
@@ -426,13 +426,6 @@
                            <mat-hint><a target="_blank" href="https://stackoverflow.com/a/37396871/8088021"><ng-container i18n="Telegram chat ID help">How do I get the chat ID?</ng-container></a></mat-hint>
                        </mat-form-field>
                    </div>
-                    <div class="col-12 mb-2">
-                        <mat-form-field class="text-field" color="accent">
-                            <mat-label i18n="Telegram webhook proxy">Telegram webhook proxy</mat-label>
-                            <input placeholder="https://smee.io/XXXXX" [disabled]="!new_config['Extra']['enable_notifications'] || !new_config['API']['use_telegram_API']" [(ngModel)]="new_config['API']['telegram_webhook_proxy']" matInput>
-                            <mat-hint><a target="_blank" href="https://smee.io/"><ng-container i18n="Telegram webhook proxy help">Example service</ng-container></a></mat-hint>
-                        </mat-form-field>
-                    </div>
                </div>
            </div>
        </ng-template>
--- a/src/app/subscription/subscription/subscription.component.html
+++ b/src/app/subscription/subscription/subscription.component.html
@@ -3,7 +3,6 @@
    <div style="margin-bottom: 15px;">
        <h2 style="text-align: center;" *ngIf="subscription">
            {{subscription.name}}&nbsp;<ng-container *ngIf="subscription.paused" i18n="Paused suffix">(Paused)</ng-container>
-            <button class="edit-button" (click)="editSubscription()" [disabled]="downloading" matTooltip="Edit" i18n-matTooltip="Edit" mat-icon-button><mat-icon class="save-icon">edit</mat-icon></button>
        </h2>
        <mat-progress-bar style="width: 80%; margin: 0 auto; margin-top: 15px;" *ngIf="subscription && subscription.downloading" mode="indeterminate"></mat-progress-bar>
    </div>
@@ -14,14 +13,7 @@
    <div style="margin-bottom: 100px;" *ngIf="subscription">
        <app-recent-videos #recentVideos [sub_id]="subscription.id"></app-recent-videos>
    </div>
-    <div class="check-button">
-        <ng-container *ngIf="subscription.downloading">
-            <button color="primary" (click)="cancelCheckSubscription()" [disabled]="cancel_clicked" matTooltip="Cancel subscription check" i18n-matTooltip="Cancel subscription check" mat-fab><mat-icon class="save-icon">cancel</mat-icon></button>
-        </ng-container>
-        <ng-container *ngIf="!subscription.downloading">
-            <button color="primary" (click)="checkSubscription()" [disabled]="check_clicked" matTooltip="Check subscription" i18n-matTooltip="Check subscription" mat-fab><mat-icon class="save-icon">youtube_searched_for</mat-icon></button>
-        </ng-container>
-    </div>
+    <button class="edit-button" color="primary" (click)="editSubscription()" [disabled]="downloading" matTooltip="Edit" i18n-matTooltip="Edit" mat-fab><mat-icon class="save-icon">edit</mat-icon></button>
    <button class="watch-button" color="primary" (click)="watchSubscription()" matTooltip="Play all" i18n-matTooltip="Play all" mat-fab><mat-icon class="save-icon">video_library</mat-icon></button>
    <button class="save-button" color="primary" (click)="downloadContent()" [disabled]="downloading" matTooltip="Download zip" i18n-matTooltip="Download zip" mat-fab><mat-icon class="save-icon">save</mat-icon><mat-spinner *ngIf="downloading" class="spinner" [diameter]="50"></mat-spinner></button>
 </div>
--- a/src/app/subscription/subscription/subscription.component.scss
+++ b/src/app/subscription/subscription/subscription.component.scss
@@ -58,19 +58,13 @@
    bottom: 25px;
 }

-.check-button {
+.edit-button {
    left: 25px;
    position: fixed;
    bottom: 25px;
    z-index: 99999;
 }

-.edit-button {
-    right: 35px;
-    position: fixed;
-    z-index: 99999;
-}
-
 .save-icon {
    bottom: 1px;
    position: relative;
--- a/src/app/subscription/subscription/subscription.component.ts
+++ b/src/app/subscription/subscription/subscription.component.ts
@@ -3,7 +3,6 @@ import { PostsService } from 'app/posts.services';
 import { ActivatedRoute, Router, ParamMap } from '@angular/router';
 import { MatDialog } from '@angular/material/dialog';
 import { EditSubscriptionDialogComponent } from 'app/dialogs/edit-subscription-dialog/edit-subscription-dialog.component';
-import { Subscription } from 'api-types';

@Component({
  selector: 'app-subscription',
@@ -13,13 +12,11 @@ import { Subscription } from 'api-types';
 export class SubscriptionComponent implements OnInit, OnDestroy {

  id = null;
-  subscription: Subscription = null;
+  subscription = null;
  use_youtubedl_archive = false;
  descendingMode = true;
  downloading = false;
  sub_interval = null;
-  check_clicked = false;
-  cancel_clicked = false;

  constructor(private postsService: PostsService, private route: ActivatedRoute, private router: Router, private dialog: MatDialog) { }

@@ -93,34 +90,4 @@ export class SubscriptionComponent implements OnInit, OnDestroy {
    this.router.navigate(['/player', {sub_id: this.subscription.id}])
  }

-  checkSubscription(): void {
-    this.check_clicked = true;
-    this.postsService.checkSubscription(this.subscription.id).subscribe(res => {
-      this.check_clicked = false;
-      if (!res['success']) {
-        this.postsService.openSnackBar('Failed to check subscription!');
-        return;
-      }
-    }, err => {
-      console.error(err);
-      this.check_clicked = false;
-      this.postsService.openSnackBar('Failed to check subscription!');
-    });
-  }
-
-  cancelCheckSubscription(): void {
-    this.cancel_clicked = true;
-    this.postsService.cancelCheckSubscription(this.subscription.id).subscribe(res => {
-      this.cancel_clicked = false;
-      if (!res['success']) {
-        this.postsService.openSnackBar('Failed to cancel check subscription!');
-        return;
-      }
-    }, err => {
-      console.error(err);
-      this.cancel_clicked = false;
-      this.postsService.openSnackBar('Failed to cancel check subscription!');
-    });
-  }
-
 }