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vk.js
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vk.js
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const vkontakte = require('vkontakte');
const _ = require('lodash');
const async = require('async');
const request = require("request");
const http = require('http');
const https = require('https');
const fs = require('fs');
const User = require("../models/user");
const Media = require("../models/media");
const apiHelper = require('../helpers/api');
const commonHelper = require('../helpers/common');
const vkAudioHelper = require('../helpers/vk_audio');
const filesHelper = require('../helpers/files');
module.exports = {
vkCallbackAuth: function(req, res) {
if(req.query.error && req.query.error_description){
return apiHelper.handleError(res, req.query.error, req.query.error_description, 500);
}
if(!req.query.code){
return apiHelper.handleError(res, "Invalid input", "Required params not defined.", 400);
}
const vk_api_options = req.app.locals.vk_api_options;
let url = 'https://oauth.vk.com/access_token?client_id=' + vk_api_options.app_id + '&client_secret=' + vk_api_options.app_secret + '&redirect_uri=' + vk_api_options.redirect_uri + '&code=' + req.query.code;
console.log('vk request url', url);
request({ url: url, json: true }, function(error, response, body) {
console.log('vk error', error);
console.log('vk response', body);
req.session.vk_service = _.pick(body, ['access_token', 'expires_in', 'user_id']);
const vk = vkontakte(req.session.vk_service.access_token);
vk('users.get', {user_ids : req.session.vk_service.user_id, fields: 'domain', v: '5.53'}, function(err, response){
console.log('users.get error', err);
let vk_user = response[0];
if(req.session.user_id)
User.findOne({ '_id': req.session.user_id }, foundUserCallback);
else
User.findOne({ 'vk.id': vk_user.id }, foundUserCallback);
function foundUserCallback(err, user) {
if(!user){
user = new User({
login: vk_user.domain,
first_name: vk_user.first_name,
last_name: vk_user.last_name,
vk: vk_user
});
} else {
user.vk = vk_user;
}
user.vk.token = req.session.vk_service.access_token;
user.save(function(err, user){
req.session.user_id = user._id;
res.send('<html><head></head><body><script>window.close();</script></body></html>');
});
}
});
}, function(error){
console.log('vkCallbackAuth error', error);
res.status(500).json(error);
});
},
//NOT WORKING IN PRODUCTION(WHEN SERVER IP AND CLIENT IP ARE NOT EQUAL) :(
vkOpenApiAuth: function(req, res){
if (!commonHelper.hasProperties(req.body, ['mid', 'secret', 'sid', 'sig'])) {
apiHelper.handleError(res, "Invalid input", "Required params not defined.", 400);
return;
}
req.session.vk_service = _.pick(req.body, ['mid', 'secret', 'sid', 'sig']);
req.session.vk_service.user_id = req.body.user.id;
User.findOne({ vk_id: req.body.user.id }, function(err, user) {
if(!user){
user = new User({
login: req.body.user.domain,
first_name: req.body.user.first_name,
last_name: req.body.user.last_name,
vk: req.body.user
});
} else {
user.vk = req.body.user;
}
user.vk.token = req.body.sid;
user.save(apiHelper.APIResponse(res));
req.session.user_id = user._id;
});
},
vkAudioList: function(req, res) {
if(!req.session.user_id || !req.session.vk_service)
return apiHelper.handleError(res, "Invalid session", "No user_id or vk_service data on session.", 400);
//TODO: fix
return apiHelper.handleError(res, "Invalid session", "Play VK audio without synced temporary unavailable :(", 400);
},
vkAudioListTest: function(req, res) {
if(!req.session.user_id || !req.session.vk_service)
return apiHelper.handleError(res, "Invalid session", "No user_id or vk_service data on session.", 400);
const vk = vkontakte(req.session.vk_service.access_token);
vk('audio.get', {owner_id : req.session.vk_service.user_id , v: '5.53'}, function(err, response){
let result = response ? _.map(response.items, (audio) => vkAudioHelper.vkAudioToMedia(audio)) : null;
apiHelper.APIResponse(res)(err, result);
});
},
vkAudioSync: function(socket, app) {
const permissions = app.locals.permissions;
const media_options = app.locals.media_options;
let session = socket.request.session;
let vk_user_id = null;
socket.on('start', function (data) {
if(!session.user_id || !session.vk_service) {
return socket.emit('start_response', apiHelper.socketResponse('invalid_session', 'Invalid session. Please re-login.'));
} else {
vk_user_id = parseInt(session.vk_service.user_id);
}
if(permissions.vkUsersIds.indexOf(vk_user_id) == -1) {
return socket.emit('start_response', apiHelper.socketResponse('not_permitted', "I'm sorry, but you are not in elite club. For create your own server with your elite club check the github repo.", {permitted_ids: permissions.vkUsersIds, user_id: vk_user_id}));
}
//=======================================================================================
// DEFINITIONS
//=======================================================================================
let vk = vkontakte(session.vk_service.access_token),
audios = null,
user = null,
media_ids_dict = null;
let result = {
total: null,
saved: 0,
already_exists: 0,
error: 0,
getSummary: function(){
this.total_done = this.saved + this.already_exists + this.error;
return this;
},
getMessage: function(is_error){
this.getSummary();
let start_message = is_error ? 'Oops, one of vk audio has error.' : 'Alright, you are in the elite club.';
return start_message + ' VK Audio sync to server - ' + this.total_done + ' of ' + this.total + ' items (saved: ' + this.saved + ', already exist: ' + this.already_exists + ', error: ' + this.error + ')'
},
getResponseData: function(object){
return _.extend({}, this, {object: object});
}
};
function addMediaToUser(media, callback){
if(media && media._id)
media_ids_dict[media._id] = media.vk ? media.vk.date : media.date;
if(_.some(user.medias, user_media => user_media.media_id.toString() == media._id.toString()))
return callback(null, media);
user.medias.push({media_id: media._id, source: 'vk', number: 0});
user.save(callback);
}
//=======================================================================================
// START PROCESS AND SET DATA TO VARIABLES
//=======================================================================================
vk('audio.get', {owner_id : session.vk_service.user_id, v: '5.53'}, function(err, response){
if(!response.count) {
return socket.emit('start_response', apiHelper.socketResponse('not_found', "You don't have audio :(", {permitted_ids: permissions.vkUsersIds, user_id: vk_user_id}));
}
audios = response.items;
result.total = response.items.length;
User.findOne({_id: session.user_id}, function(userErr, userDoc) {
user = userDoc;
Media.find({ _id: { "$in" : user.media_ids || [] } }, function(mediaErr, mediaDocs){
media_ids_dict = _(mediaDocs).map(mediaDocs, media => [media._id, media.vk.date]).fromPairs().value() || {};
//RUN TASKS
processVkAudios();
return socket.emit('start_response', apiHelper.socketResponse(null, "Alright, you are in the elite club. VK Audio synced was getting started. Please wait for finish..."));
});
});
});
function processVkAudios(){
let tasks = [];
_.forEach(audios, function(vk_audio, index){
tasks.push(function(callback) {
Media.findOne({$or: [
{ 'vk.id': vk_audio.id },
{ $and: [{ 'artist': vk_audio.artist }, { 'title': vk_audio.title }] },
{ $and: [{ 'vk.artist': vk_audio.artist }, { 'vk.title': vk_audio.title }] }
]}, function(err, media) {
if (media){
result.already_exists++;
return addMediaToUser(media, callback);
}
media = new Media(vkAudioHelper.vkAudioToMedia(vk_audio));
media.user_loaded_id = session.user_id;
let path_data = filesHelper.getMediaFilePathData(media);
if (!fs.existsSync(path_data.absolute_dir_path)){
fs.mkdirSync(path_data.absolute_dir_path);
}
if(!vk_audio.url)
return httpError('empty audio');
let file = fs.createWriteStream(path_data.absolute_file_path);
try {
console.log('GET ' + vk_audio.url);
const httpService = vk_audio.url.indexOf("https:") == 0 ? https : http;
httpService.get(vk_audio.url, function(response) {
response.on('data', function(data) {
file.write(data);
}).on('end', function() {
file.end();
media.path = path_data.relative_file_path;
media.save(function(err, doc){
console.log('[SAVED]', path_data.file_name);
result.saved++;
socket.emit('partial_success', apiHelper.socketResponse(null, result.getMessage(), result.getResponseData(doc)));
addMediaToUser(media, callback);
});
}).on('error', httpError);
}, httpError);
} catch (ex){
httpError(ex);
}
function httpError(error){
socket.emit('partial_success', apiHelper.socketResponse(null, result.getMessage(true)));
console.log('http get error', vk_audio.url, error);
console.log(vk_audio);
result.error++;
callback(null, media);
console.log((index + 1) + ' of ' + audios.length);
console.log(result);
}
});
});
});
async.parallelLimit(tasks, 10, function(err, docs) {
//END ALL TASKS
user.save(function(err, dbUser) {
let media_ids = commonHelper.getKeysSortedByValue(media_ids_dict);
dbUser.medias = _.map(dbUser.medias, (user_media, index) => {
if(!user_media.number && user_media.source == 'vk')
user_media.number = media_ids.indexOf(user_media.media_id.toString());
return user_media;
});
dbUser.markModified('medias');
dbUser.save(function(){
socket.emit('all_success', apiHelper.socketResponse(err, "VK Audio Sync complete", result));
socket.disconnect(0);
});
});
});
}
});
}
};