Node: Unexpected end of input

Created on 1 Dec 2015  路  5Comments  路  Source: nodejs/node

Hi :)
Yesterday, I tried a new script file on my server. I got an error because I forgot to declare a variable. I correct it, but since that, I always get this error and I don't understand why:

undefined:1

SyntaxError: Unexpected end of input
    at Object.parse (native)
    at Object.<anonymous> (/home/gregduc/botssql.js:19:39)
    at Module._compile (module.js:435:26)
    at Object.Module._extensions..js (module.js:442:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:311:12)
    at Function.Module.runMain (module.js:467:10)
    at startup (node.js:136:18)
    at node.js:963:3

Can anyone can help me?

My scipt use mysql, fs, node steam modules.
My code:

// User information
var FileSystem = require('fs');
var mysql      = require('mysql');
var SteamInterface = require('steam');
var connection = mysql.createConnection({
  host     : 'xxx',
  user     : 'xxx',
  password : 'xxx',
  database : 'xxx'
});

connection.connect(function(err){
  if(err){
    console.log('Error connecting to Db');
    return;
  }
  console.log('Connection established');
});

  var ACCOUNT_USERNAME = ''; // Fill these in for your account.
  var ACCOUNT_PASSWORD = '';
  var AUTH_CODE = '';
  var idb = x;
  var GAMES_TO_IDLE =[];

  var online=''


connection.query('SELECT * FROM bots WHERE idb=' + idb,function(err,rows){
  if(err) throw err;
  ACCOUNT_USERNAME = (rows)[0].username; // Fill these in for your account.
  console.log('Utilisateur: '+ ACCOUNT_USERNAME)
  ACCOUNT_PASSWORD = (rows)[0].password;
  AUTH_CODE = (rows)[0].auth_code;
  var tps=((rows)[0].games).split(",").map(Number)
  console.log("Jeux jou茅s:" + tps)

for (i = 0; i < tps.length; i++) {
    var object={}
    object.game_id=tps[i]
    GAMES_TO_IDLE.push(object);
}
  online=(rows)[0].online
});



// // connection.end(function(err) {
  // // // The connection is terminated gracefully
  // // // Ensures all previously enqueued queries are still
  // // // before sending a COM_QUIT packet to the MySQL server.
// // });


// Use indexed servers if applicable
if(FileSystem.existsSync('servers.json')){
        SteamInterface.servers = JSON.parse(FileSystem.readFileSync('servers.json'));}

// Initialize the virtual client
var iSteamClient = new SteamInterface.SteamClient();
var iSteamUser = new SteamInterface.SteamUser(iSteamClient);
var iSteamFriends = new SteamInterface.SteamFriends(iSteamClient);




// Connect to Steam and attempt to log on
iSteamClient.connect();
iSteamClient.on('connected', function(){
        if(FileSystem.existsSync(ACCOUNT_USERNAME+'.dat')){
                var SentryData = FileSystem.readFileSync(ACCOUNT_USERNAME +'.dat');
                iSteamUser.logOn({
                        account_name: ACCOUNT_USERNAME,
                        password: ACCOUNT_PASSWORD,
                        sha_sentryfile: SentryData
                });
        }else{
                if(AUTH_CODE.length > 0){
                        iSteamUser.logOn({
                                account_name: ACCOUNT_USERNAME,
                                password: ACCOUNT_PASSWORD,
                                auth_code: AUTH_CODE
                        });
                }else{
                        iSteamUser.logOn({
                                account_name: ACCOUNT_USERNAME,
                                password: ACCOUNT_PASSWORD
                        });
                }
        }

});

// Retrieve log in response
iSteamClient.on('logOnResponse', function(response){
        if(response.eresult == SteamInterface.EResult.OK){
            console.log('[Steam] Successfully logged in.');

                // Set user to display Online
            if(online==1){
            iSteamFriends.setPersonaState(SteamInterface.EPersonaState.Online);
            }
                // Start idling target applications
            iSteamUser.gamesPlayed(GAMES_TO_IDLE);
            console.log('[Steam] Logging game hours!');

        }

        else{
                iSteamClient.disconnect();
                if(response.eresult == SteamInterface.EResult.InvalidLoginAuthCode){
                        console.log('[Steam] Auth Code expired. Run again with no auth code for new Auth Code email.');
                }else if(response.eresult == SteamInterface.EResult.AccountLogonDenied){
                        console.log('[Steam] Auth Code generated. Check your email and edit the script.');
                }else{
                        console.log('[Steam] Login error, ID: ' + response.eresult.toString());
                }
        }
});

// Fetch and save Sentry verification
// iSteamUser.on('updateMachineAuth', function(SentryData, callback){
        // console.log('[Steam] Retrieved sentry information.');
        // FileSystem.writeFileSync(ACCOUNT_USERNAME+'.dat', response.bytes, function(err){
                // if(err){
                        // console.log('[Steam] Failed to write Sentry file.');
                        // console.log(err);
                // }else{
                        // console.log('[Steam] Sentry file written.');
                // }
        // });
        // callback({ sha_file: MakeSha(response.bytes) });
// });

// Fetch and index servers
iSteamClient.on('servers', function(servers){
        FileSystem.writeFile('servers.json', JSON.stringify(servers));
});

// Provide some error handling
function onErr(err){
        console.log(err);
        return 1;
}

Thank you for your help :)

question
Source
picture celi28

All 5 comments

fs.readFileSync() returns a Buffer by default. JSON.parse() cannot parse a Buffer. You need to pass JSON.parse() a string:

SteamInterface.servers = JSON.parse(FileSystem.readFileSync('servers.json', { encoding: 'utf8' }));
mscdex picture mscdex on 1 Dec 2015

I have the same error after replacing the line code...

SyntaxError: Unexpected end of input
    at Object.parse (native)
    at Object.<anonymous> (/home/gregduc/botgm.js:57:39)
    at Module._compile (module.js:435:26)
    at Object.Module._extensions..js (module.js:442:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:311:12)
    at Function.Module.runMain (module.js:467:10)
    at startup (node.js:136:18)
    at node.js:963:3

// User information
var FileSystem = require('fs');
var mysql      = require('mysql');
var SteamInterface = require('steam');
var connection = mysql.createConnection({
  host     : 'x',
  user     : 'x',
  password : 'x',
  database : 'x'
});

connection.connect(function(err){
  if(err){
    console.log('Error connecting to Db');
    return;
  }
  console.log('Connection established');
});

  var ACCOUNT_USERNAME = ''; // Fill these in for your account.
  var ACCOUNT_PASSWORD = '';
  var AUTH_CODE = '';
  var idb = x;
  var GAMES_TO_IDLE =[];

  var online=''


connection.query('SELECT * FROM bots WHERE' + idb,function(err,rows){
  if(err) throw err;
  ACCOUNT_USERNAME = (rows)[0].username; // Fill these in for your account.
  console.log('Utilisateur: '+ ACCOUNT_USERNAME)
  ACCOUNT_PASSWORD = (rows)[0].password;
  AUTH_CODE = (rows)[0].auth_code;
  var tps=((rows)[0].games).split(",").map(Number)
  console.log("Jeux jou茅s:" + tps)

for (i = 0; i < tps.length; i++) {
    var object={}
    object.game_id=tps[i]
    GAMES_TO_IDLE.push(object);
}
  online=(rows)[0].online
});



// // connection.end(function(err) {
  // // // The connection is terminated gracefully
  // // // Ensures all previously enqueued queries are still
  // // // before sending a COM_QUIT packet to the MySQL server.
// // });


// Use indexed servers if applicable
if(FileSystem.existsSync('servers.json')){
        SteamInterface.servers = JSON.parse(FileSystem.readFileSync('servers.json', { encoding: 'utf8' }))};

// Initialize the virtual client
var iSteamClient = new SteamInterface.SteamClient();
var iSteamUser = new SteamInterface.SteamUser(iSteamClient);
var iSteamFriends = new SteamInterface.SteamFriends(iSteamClient);




// Connect to Steam and attempt to log on
iSteamClient.connect();
iSteamClient.on('connected', function(){
        if(FileSystem.existsSync(idb+'.dat')){
                var SentryData = FileSystem.readFileSync(idb +'.dat');
                iSteamUser.logOn({
                        account_name: ACCOUNT_USERNAME,
                        password: ACCOUNT_PASSWORD,
                        sha_sentryfile: SentryData
                });
        }else{
                if(AUTH_CODE.length > 0){
                        iSteamUser.logOn({
                                account_name: ACCOUNT_USERNAME,
                                password: ACCOUNT_PASSWORD,
                                auth_code: AUTH_CODE
                        });
                }else{
                        iSteamUser.logOn({
                                account_name: ACCOUNT_USERNAME,
                                password: ACCOUNT_PASSWORD
                        });
                }
        }

});

// Retrieve log in response
iSteamClient.on('logOnResponse', function(response){
        if(response.eresult == SteamInterface.EResult.OK){
            console.log('[Steam] Successfully logged in.');

                // Set user to display Online
            if(online==1){
            iSteamFriends.setPersonaState(SteamInterface.EPersonaState.Online);
            }
                // Start idling target applications
            iSteamUser.gamesPlayed(GAMES_TO_IDLE);
            console.log('[Steam] Logging game hours!');

        }

        else{
                iSteamClient.disconnect();
                if(response.eresult == SteamInterface.EResult.InvalidLoginAuthCode){
                        console.log('[Steam] Auth Code expired. Run again with no auth code for new Auth Code email.');
                }else if(response.eresult == SteamInterface.EResult.AccountLogonDenied){
                        console.log('[Steam] Auth Code generated. Check your email and edit the script.');
                }else{
                        console.log('[Steam] Login error, ID: ' + response.eresult.toString());
                }
        }
});

// Fetch and save Sentry verification
iSteamClient.on('sentry', function(SentryData){
        console.log('[Steam] Retrieved sentry information.');
        FileSystem.writeFile(idb, SentryData, function(err){
                if(err){
                        console.log('[Steam] Failed to write Sentry file.');
                        console.log(err);
                }else{
                        console.log('[Steam] Sentry file written.');
                }
        });
});

// Fetch and index servers
iSteamClient.on('servers', function(servers){
        FileSystem.writeFile('servers.json', JSON.stringify(servers));
});

// Provide some error handling
function onErr(err){
        console.log(err);
        return 1;
}

I don't understand why it was working before and not now...

celi28 picture celi28 on 1 Dec 2015

SOLVED.

celi28 picture celi28 on 1 Dec 2015
👎8

How did ya solve it? I'm seeing this now after switching to strict mode also. Mine are thrown on the first line.

tomachinz picture tomachinz on 11 Jun 2019

@tomachinz you should consider asking on https://github.com/nodejs/help/issues instead

mscdex picture mscdex on 11 Jun 2019
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