Merge pull request #328 from zoff-music/refactor/prettier-json-api

Refactor/prettier json api
This commit is contained in:
Kasper Rynning-Tønnesen
2018-03-02 10:54:10 +01:00
committed by GitHub
6 changed files with 254 additions and 158 deletions

View File

@@ -1,4 +1,4 @@
VERSION = 3;
VERSION = 4;
try {
module.exports = VERSION;

View File

@@ -39,18 +39,21 @@ function get_correct_info(song_generated, channel, broadcast, callback) {
if(broadcast && docs.nModified == 1) {
song_generated.new_id = song_generated.id;
//if(song_generated.type == "video")
io.to(channel).emit("channel", {type: "changed_values", value: song_generated});
if(typeof(callback) == "function") {
callback();
callback(song_generated, true);
} else {
io.to(channel).emit("channel", {type: "changed_values", value: song_generated});
}
} else {
callback();
callback(song_generated, true);
}
});
}
} else {
findSimilar(song_generated, channel, broadcast, callback)
}
} catch(e){
console.log(e);
callback({}, false);
}
});
}
@@ -69,6 +72,15 @@ function check_error_video(msg, channel) {
try {
var resp = JSON.parse(body);
if(resp.pageInfo.totalResults == 0) {
findSimilar(msg, channel, true, undefined)
}
} catch(e){
console.log(e);
}
});
}
function findSimilar(msg, channel, broadcast, callback) {
var yt_url = "https://www.googleapis.com/youtube/v3/search?key="+key+"&videoEmbeddable=true&part=id&type=video&order=viewCount&safeSearch=none&maxResults=5&q=" + encodeURIComponent(msg.title);
request({
method: "GET",
@@ -104,20 +116,27 @@ function check_error_video(msg, channel) {
db.collection(channel).update({"id": msg.id}, {
$set: element
}, function(err, docs) {
if(docs.nModified == 1) {
if(docs.nModified == 1 && broadcast) {
element.new_id = element.id;
element.id = msg.id;
if(!callback) {
io.to(channel).emit("channel", {type: "changed_values", value: element});
}
});
}
if(callback) {
msg.title = element.title;
msg.id = element.id;
msg.duration = element.duration;
msg.start = element.start;
msg.end = element.end;
callback(msg, true);
}
});
} else if(callback) {
callback({}, false);
}
});
}
} catch(e){
console.log(e);
}
});
}

View File

@@ -146,7 +146,7 @@ var Admin = {
},
pw: function(msg) {
if(msg == false) return;
if(!msg) return;
w_p = false;
if(adminpass == undefined || adminpass == "") {
adminpass = Crypt.get_pass(chan.toLowerCase());

View File

@@ -254,7 +254,7 @@ var Frontpage = {
url: add + "/api/frontpages",
method: "get",
success: function(response){
Frontpage.frontpage_function(response);
Frontpage.frontpage_function(response.results);
},
error: function() {
Materialize.toast("Couldn't fetch lists, trying again in 3 seconds..", 3000, "red lighten connect_error");

View File

@@ -34,13 +34,17 @@
<link rel="icon" id="favicon" type="image/png" sizes="16x16" href="/assets/images/favicon-16x16.png">
<link rel="mask-icon" href="/assets/images/safari-pinned-tab.svg" color="#2d2d2d">
<script type="text/javascript">
if(window.location.hostname.indexOf("zoff.me") >= 0) {
if(window.location.hostname != "localhost") {
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', '{{{ analytics }}}', 'auto');
} else {
function ga() {
console.log(arguments);
}
}
</script>
<script type="text/javascript" src="https://code.jquery.com/jquery-2.2.4.min.js"></script>

View File

@@ -31,6 +31,51 @@ var toShowConfig = {
_id: 0
};
var error = {
not_found: {
youtube: {
status: 404,
error: "Couldn't find a song like that on YouTube.",
success: false,
},
local: {
status: 404,
error: "Couldn't find a song like that in the channel",
success: false,
},
list: {
status: 404,
error: "The list doesn't exist",
success: false,
}
},
not_authenticated: {
status: 403,
error: "Wrong adminpassword or userpassword.",
success: false,
},
formatting: {
status: 400,
error: "Malformed request parameters.",
success: false,
},
conflicting: {
status: 409,
error: "That element already exists.",
success: false,
},
tooMany: {
status: 429,
error: "You're doing too many requests, check header-field Retry-After for the wait-time left.",
success: false,
},
no_error: {
status: 200,
error: false,
success: true,
}
}
router.use(function(req, res, next) {
next(); // make sure we go to the next routes and don't stop here
});
@@ -41,10 +86,14 @@ router.route('/api/help').get(function(req, res) {
})
router.route('/api/frontpages').get(function(req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
db.collection("frontpage_lists").find({frontpage: true, count: {$gt: 0}}, function(err, docs) {
db.collection("connected_users").find({"_id": "total_users"}, function(err, tot) {
res.setHeader('Content-Type', 'application/json');
res.status(200).send(JSON.stringify({channels: docs, viewers: tot[0].total_users.length}));
var to_return = error.no_error;
to_return.results = {channels: docs, viewers: tot[0].total_users.length};
res.status(200).send(JSON.stringify(to_return));
return;
});
});
@@ -57,9 +106,10 @@ router.route('/api/generate_name').get(function(req, res) {
router.route('/api/list/:channel_name/:video_id').delete(function(req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
if(!req.body.hasOwnProperty('adminpass') || !req.body.hasOwnProperty('userpass') ||
!req.params.hasOwnProperty('channel_name') || !req.params.hasOwnProperty('video_id')) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
try {
@@ -74,19 +124,19 @@ router.route('/api/list/:channel_name/:video_id').delete(function(req, res) {
throw "Wrong format";
}
} catch(e) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
checkTimeout(guid, res, "DELETE", function() {
validateLogin(adminpass, userpass, channel_name, "delete", res, function(exists) {
if(!exists) {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
return;
}
db.collection(channel_name).find({id:video_id, now_playing: false}, function(err, docs){
if(docs.length == 0) {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.local));
return;
}
var dont_increment = false;
@@ -99,13 +149,13 @@ router.route('/api/list/:channel_name/:video_id').delete(function(req, res) {
if(!dont_increment) {
db.collection("frontpage_lists").update({_id: channel_name, count: {$gt: 0}}, {$inc: {count: -1}, $set:{accessed: Functions.get_time()}}, {upsert: true}, function(err, docs){
updateTimeout(guid, res, "DELETE", function(err, docs) {
res.sendStatus(200);
res.status(200).send(JSON.stringify(error.no_error));
return;
});
});
} else {
updateTimeout(guid, res, "DELETE", function(err, docs) {
res.sendStatus(200);
res.status(200).send(JSON.stringify(error.no_error));
return;
});
}
@@ -119,13 +169,14 @@ router.route('/api/list/:channel_name/:video_id').delete(function(req, res) {
router.route('/api/conf/:channel_name').put(function(req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
if(!req.body.hasOwnProperty('adminpass') || !req.body.hasOwnProperty('userpass') ||
!req.params.hasOwnProperty('channel_name') || !req.body.hasOwnProperty('vote') ||
!req.body.hasOwnProperty('addsongs') || !req.body.hasOwnProperty('longsongs') ||
!req.body.hasOwnProperty('frontpage') || !req.body.hasOwnProperty('allvideos') ||
!req.body.hasOwnProperty('skip') || !req.body.hasOwnProperty('shuffle') ||
!req.body.hasOwnProperty('userpass_changed')) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
try {
@@ -153,13 +204,13 @@ router.route('/api/conf/:channel_name').put(function(req, res) {
throw "Wrong format";
}
} catch(e) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
checkTimeout(guid, res, "CONFIG", function() {
validateLogin(adminpass, userpass, channel_name, "config", res, function(exists, conf) {
if(!exists && conf.length == 0) {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
return;
}
@@ -201,8 +252,9 @@ router.route('/api/conf/:channel_name').put(function(req, res) {
},
{upsert:true}, function(err, docs){
updateTimeout(guid, res, "CONFIG", function(err, docs) {
res.header({'Content-Type': 'application/json'});
res.status(200).send(JSON.stringify(obj));
var to_return = error.no_error;
to_return.results = obj;
res.status(200).send(JSON.stringify(to_return));
return;
});
});
@@ -214,9 +266,11 @@ router.route('/api/conf/:channel_name').put(function(req, res) {
router.route('/api/list/:channel_name/:video_id').put(function(req,res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
if(!req.body.hasOwnProperty('adminpass') || !req.body.hasOwnProperty('userpass') ||
!req.params.hasOwnProperty('channel_name') || !req.params.hasOwnProperty('video_id')) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
@@ -232,22 +286,22 @@ router.route('/api/list/:channel_name/:video_id').put(function(req,res) {
throw "Wrong format";
}
} catch(e) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
checkTimeout(guid, res, "PUT", function() {
validateLogin(adminpass, userpass, channel_name, "vote", res, function(exists) {
if(!exists) {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
return;
}
db.collection(channel_name).find({id: video_id, now_playing: false, type:"video"}, function(err, song) {
if(song.length == 0) {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.local));
return;
} else if(song[0].guids.indexOf(guid) > -1) {
res.sendStatus(409);
res.status(409).send(JSON.stringify(error.conflicting));
return;
} else {
song[0].votes += 1;
@@ -256,8 +310,9 @@ router.route('/api/list/:channel_name/:video_id').put(function(req,res) {
io.to(channel_name).emit("channel", {type: "vote", value: video_id, time: Functions.get_time()});
List.getNextSong(channel_name, function() {
updateTimeout(guid, res, "PUT", function(err, docs) {
res.header({'Content-Type': 'application/json'});
res.status(200).send(JSON.stringify(song[0]));
var to_return = error.no_error;
to_return.results = song[0];
res.status(200).send(JSON.stringify(to_return));
return;
});
});
@@ -271,9 +326,11 @@ router.route('/api/list/:channel_name/:video_id').put(function(req,res) {
router.route('/api/list/:channel_name/__np__').post(function(req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
if(!req.body.hasOwnProperty('userpass')) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
@@ -284,7 +341,7 @@ router.route('/api/list/:channel_name/__np__').post(function(req, res) {
var userpass = req.body.userpass;
if(typeof(userpass) != "string") {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
@@ -293,19 +350,18 @@ router.route('/api/list/:channel_name/__np__').post(function(req, res) {
if(list.length > 0) {
db.collection(channel_name + "_settings").find({views: {$exists: true}}, function(err, conf) {
if(conf.length == 0) {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
return;
} else if(conf[0].userpass != userpass && conf[0].userpass != "") {
res.sendStatus(403);
res.status(404).send(JSON.stringify(error.not_authenticated));
return;
}
updateTimeout(guid, res, "POST", function(err, docs) {
res.setHeader('Content-Type', 'application/json');
res.status(200).send(JSON.stringify(list[0]));
});
});
} else {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
}
});
});
@@ -314,6 +370,7 @@ router.route('/api/list/:channel_name/__np__').post(function(req, res) {
router.route('/api/list/:channel_name/:video_id').post(function(req,res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
var fetch_only = false;
if(req.body.hasOwnProperty('fetch_song')) {
@@ -323,7 +380,7 @@ router.route('/api/list/:channel_name/:video_id').post(function(req,res) {
!req.params.hasOwnProperty('channel_name') || !req.params.hasOwnProperty('video_id') ||
!req.body.hasOwnProperty('duration') || !req.body.hasOwnProperty('start_time') ||
!req.body.hasOwnProperty('end_time') || !req.body.hasOwnProperty('title'))) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
try {
@@ -346,7 +403,7 @@ router.route('/api/list/:channel_name/:video_id').post(function(req,res) {
}
}
} catch(e) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
@@ -357,16 +414,21 @@ router.route('/api/list/:channel_name/:video_id').post(function(req,res) {
if(result.length == 0 || result[0].type == "suggested") {
var song_type = authenticated ? "video" : "suggested";
if(fetch_only && result.length == 0) {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.local));
return;
}
db.collection(channel_name).find({now_playing: true}, function(err, now_playing) {
var set_np = false;
if(now_playing.length == 0 && authenticated) {
set_np = true;
}
var new_song = {"added": Functions.get_time(),"guids":[guid],"id":video_id,"now_playing":set_np,"title":title,"votes":1, "duration":duration, "start": parseInt(start_time), "end": parseInt(end_time), "type": song_type};
Search.get_correct_info(new_song, channel_name, false, function(element, found) {
if(!found) {
res.status(404).send(JSON.stringify(error.not_found.youtube));
return;
}
new_song = element;
db.collection("frontpage_lists").find({"_id": channel_name}, function(err, count) {
var create_frontpage_lists = false;
if(count.length == 0) {
@@ -405,13 +467,15 @@ router.route('/api/list/:channel_name/:video_id').post(function(req,res) {
}
});
})
})
});
});
} else if(fetch_only) {
res.setHeader('Content-Type', 'application/json');
res.status(200).send(JSON.stringify(result[0]));
var to_return = error.no_error;
to_return.results = result[0];
res.status(200).send(JSON.stringify(to_return));
return;
} else {
res.sendStatus(409);
res.status(409).send(JSON.stringify(error.conflicting));
return;
}
});
@@ -422,23 +486,25 @@ router.route('/api/list/:channel_name/:video_id').post(function(req,res) {
router.route('/api/list/:channel_name').get(function(req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
var channel_name = req.params.channel_name;
db.collection(channel_name).find({views: {$exists: false}}, toShowChannel, function(err, docs) {
if(docs.length > 0) {
db.collection(channel_name + "_settings").find({views: {$exists: true}}, function(err, conf) {
if(conf.length == 0) {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
return;
} else if(conf[0].userpass != "" && conf[0].userpass != undefined) {
res.sendStatus(403);
res.status(404).send(JSON.stringify(error.not_authenticated));
return;
}
res.setHeader('Content-Type', 'application/json');
res.status(200).send(JSON.stringify(docs));
var to_return = error.no_error;
to_return.results = docs;
res.status(200).send(JSON.stringify(to_return));
});
} else {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
}
});
});
@@ -446,6 +512,7 @@ router.route('/api/list/:channel_name').get(function(req, res) {
router.route('/api/list/:channel_name/:video_id').get(function(req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
var channel_name = req.params.channel_name;
var video_id = req.params.video_id;
@@ -457,18 +524,19 @@ router.route('/api/list/:channel_name/:video_id').get(function(req, res) {
if(docs.length > 0) {
db.collection(channel_name + "_settings").find({views: {$exists: true}}, function(err, conf) {
if(conf.length == 0) {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
return;
} else if(conf[0].userpass != "" && conf[0].userpass != undefined) {
res.sendStatus(403);
res.status(404).send(JSON.stringify(error.not_authenticated));
return;
}
res.setHeader('Content-Type', 'application/json');
res.status(200).send(JSON.stringify(docs[0]));
var to_return = error.no_error;
to_return.results = docs[0];
res.status(200).send(JSON.stringify(to_return));
return;
});
} else {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.local));
return;
}
});
@@ -477,6 +545,7 @@ router.route('/api/list/:channel_name/:video_id').get(function(req, res) {
router.route('/api/conf/:channel_name').get(function(req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
var channel_name = req.params.channel_name;
db.collection(channel_name + "_settings").find({views: {$exists: true}}, toShowConfig, function(err, docs) {
@@ -492,13 +561,14 @@ router.route('/api/conf/:channel_name').get(function(req, res) {
} else {
conf.userpass = false;
}
res.setHeader('Content-Type', 'application/json');
res.status(200).send(JSON.stringify(conf));
var to_return = error.no_error;
to_return.results = conf;
res.status(200).send(JSON.stringify(to_return));
} else if(docs.length > 0 && docs[0].userpass != "" && docs[0].userpass != undefined){
res.sendStatus(403);
res.status(404).send(JSON.stringify(error.not_authenticated));
return;
} else {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
return;
}
});
@@ -507,9 +577,10 @@ router.route('/api/conf/:channel_name').get(function(req, res) {
router.route('/api/conf/:channel_name').post(function(req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
if(!req.body.hasOwnProperty('userpass')) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
var ip = req.headers['x-forwarded-for'] || req.connection.remoteAddress;
@@ -519,7 +590,7 @@ router.route('/api/conf/:channel_name').post(function(req, res) {
var userpass = req.body.userpass;
if(typeof(userpass) != "string") {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
@@ -538,14 +609,15 @@ router.route('/api/conf/:channel_name').post(function(req, res) {
conf.userpass = false;
}
updateTimeout(guid, res, "POST", function(err, docs) {
res.setHeader('Content-Type', 'application/json');
res.status(200).send(JSON.stringify(conf));
var to_return = error.no_error;
to_return.results = conf;
res.status(200).send(JSON.stringify(to_return));
});
} else if(docs.length > 0 && docs[0].userpass != userpass) {
res.sendStatus(403);
res.status(404).send(JSON.stringify(error.not_authenticated));
return;
} else {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
return;
}
});
@@ -555,9 +627,10 @@ router.route('/api/conf/:channel_name').post(function(req, res) {
router.route('/api/list/:channel_name').post(function(req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header({"Content-Type": "application/json"});
if(!req.body.hasOwnProperty('userpass')) {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
@@ -568,7 +641,7 @@ router.route('/api/list/:channel_name').post(function(req, res) {
var userpass = req.body.userpass;
if(typeof(userpass) != "string") {
res.sendStatus(400);
res.status(400).send(JSON.stringify(error.formatting));
return;
}
@@ -577,19 +650,20 @@ router.route('/api/list/:channel_name').post(function(req, res) {
if(list.length > 0) {
db.collection(channel_name + "_settings").find({views: {$exists: true}}, function(err, conf) {
if(conf.length == 0) {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
return;
} else if(conf[0].userpass != userpass && conf[0].userpass != "") {
res.sendStatus(403);
res.status(404).send(JSON.stringify(error.not_authenticated));
return;
}
updateTimeout(guid, res, "POST", function(err, docs) {
res.setHeader('Content-Type', 'application/json');
res.status(200).send(JSON.stringify(list));
var to_return = error.no_error;
to_return.results = list;
res.status(200).send(JSON.stringify(to_return));
});
});
} else {
res.sendStatus(404);
res.status(404).send(JSON.stringify(error.not_found.list));
}
});
});
@@ -689,7 +763,7 @@ function checkTimeout(guid, res, type, callback) {
var retry_in = (date.getTime() - now.getTime()) / 1000;
if(retry_in > 0) {
res.header({'Retry-After': retry_in});
res.sendStatus(429);
res.status(429).send(JSON.stringify(error.tooMany));
return;
}
}
@@ -711,7 +785,7 @@ function validateLogin(adminpass, userpass, channel_name, type, res, callback) {
if(conf.length > 0 && ((conf[0].userpass == undefined || conf[0].userpass == "" || conf[0].userpass == userpass))) {
exists = true;
} else if(conf.length > 0 && type != "config") {
res.sendStatus(403);
res.status(404).send(JSON.stringify(error.not_authenticated));
return;
}
@@ -726,7 +800,7 @@ function validateLogin(adminpass, userpass, channel_name, type, res, callback) {
} else if(type == "add") {
callback(exists, conf, false);
} else {
res.sendStatus(403);
res.status(404).send(JSON.stringify(error.not_authenticated));
return;
}
});
@@ -738,13 +812,12 @@ function postEnd(channel_name, configs, new_song, guid, res, authenticated) {
}
List.getNextSong(channel_name, function() {
updateTimeout(guid, res, "POST", function(err, docs) {
Search.get_correct_info(new_song, channel_name, !new_song.now_playing, function() {
res.header({'Content-Type': 'application/json'});
res.status(authenticated ? 200 : 403).send(JSON.stringify(new_song));
var to_return = error.no_error;
to_return.results = new_song;
res.status(authenticated ? 200 : 403).send(JSON.stringify(to_return));
return;
});
});
});
}
module.exports = router;