app.js

var express = require('express')
  , path = require('path')
  , denariusapi = require('chaincoin-node-api')
  , favicon = require('static-favicon')
  , logger = require('morgan')
  , cookieParser = require('cookie-parser')
  , bodyParser = require('body-parser')
  , settings = require('./lib/settings')
  , routes = require('./routes/index')
  , lib = require('./lib/explorer')
  , db = require('./lib/database')
  , locale = require('./lib/locale')
  , request = require('request');

var app = express();

// denariusapi
denariusapi.setWalletDetails(settings.wallet);
if (settings.heavy != true) {
  denariusapi.setAccess('only', ['getinfo', 'gethashespersec', 'getmininginfo','getdifficulty', 'getconnectioncount',
    'getblockcount', 'getblockhash', 'getblock', 'getrawtransaction', 'getpeerinfo', 'getmasternodecount', 'getmasternodecountonline', 'getmasternodelist', 'gettxoutsetinfo', 'sendrawtransaction']);
} else {
  // enable additional heavy api calls
  /*
    getvote - Returns the current block reward vote setting.
    getmaxvote - Returns the maximum allowed vote for the current phase of voting.
    getphase - Returns the current voting phase ('Mint', 'Limit' or 'Sustain').
    getreward - Returns the current block reward, which has been decided democratically in the previous round of block reward voting.
    getnextrewardestimate - Returns an estimate for the next block reward based on the current state of decentralized voting.
    getnextrewardwhenstr - Returns string describing how long until the votes are tallied and the next block reward is computed.
    getnextrewardwhensec - Same as above, but returns integer seconds.
    getsupply - Returns the current money supply.
    getmaxmoney - Returns the maximum possible money supply.
  */
  denariusapi.setAccess('only', ['getinfo', 'getstakinginfo', 'gethashespersec', 'getdifficulty', 'getconnectioncount',
    'getblockcount', 'getblockhash', 'getblock', 'getrawtransaction','getmaxmoney', 'getvote',
    'getmaxvote', 'getphase', 'getreward', 'getnextrewardestimate', 'getnextrewardwhenstr',
    'getnextrewardwhensec', 'getsupply', 'getmasternodecount', 'getmasternodecountonline', 'getmasternodelist', 'gettxoutsetinfo', 'sendrawtransaction']);
}
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(favicon(path.join(__dirname, settings.favicon)));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded());
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

// Add headers
app.use(function (req, res, next) {

    // Website you wish to allow to connect
    res.setHeader('Access-Control-Allow-Origin', '*');

    // Request methods you wish to allow
    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');

    // Request headers you wish to allow
    res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type');

    // Set to true if you need the website to include cookies in the requests sent
    // to the API (e.g. in case you use sessions)
    res.setHeader('Access-Control-Allow-Credentials', true);

    // Pass to next layer of middleware
    next();
});

// routes
app.use('/api', denariusapi.app);
app.use('/', routes);
app.use('/ext/getmoneysupply', function(req,res){
  lib.get_supply(function(supply){
    res.send(' '+supply);
  });
});

app.use('/ext/zmqsend/:data', function(req,res){
  lib.send_zmq(req.param('data'), function(result){
	console.log("sent with result", result);
	});
  res.send("ok");
});

app.use('/ext/txinfo/:hash', function(req,res){
  db.get_tx(req.param('hash'), function(tx){
    if (tx) {
      var a_ext = {
        hash: tx.txid,
        block: tx.blockindex,
        timestamp: tx.timestamp,
        total: tx.total,
        inputs: tx.vin,
        outputs: tx.vout,
      };
      res.send(a_ext);
    } else {
      res.send({ error: 'tx not found.', hash: req.param('hash')})
    }
  });
});

app.use('/ext/getaddress/:hash', function(req,res){
  db.get_address(req.param('hash'), function(address){
    if (address) {
      var a_ext = {
        address: address.a_id,
        sent: (address.sent / 100000000),
        received: (address.received / 100000000),
        balance: (address.balance / 100000000).toString().replace(/(^-+)/mg, ''),
        last_txs: address.txs,
      };
      res.send(a_ext);
    } else {
      res.send({ error: 'address not found.', hash: req.param('hash')})
    }
  });
});

app.use('/ext/getaddresstxsajax', function(req,res){
  if(req.query.length > settings.txcount){
      req.query.length = settings.txcount;
  }
  db.get_address_txs_ajax(req.query.address, req.query.start, req.query.length,function(txs, count){
      var data = [];
      for(i=0; i<txs.length; i++){
          if(typeof txs[i].txid !== "undefined") {
              var out = 0
              var vin = 0

              txs[i].vout.forEach(function (r) {
                  if (r.addresses == req.query.address) {
                      out = r.amount;
                  }
              });

              txs[i].vin.forEach(function (s) {
                  if (s.addresses == req.query.address) {
                      vin = s.amount
                  }
              });

              var row = [];
              row.push(new Date((txs[i].timestamp) * 1000).toUTCString());
              row.push(txs[i].txid);
              row.push(out);
              row.push(vin);
              data.push(row);
          }
      }

      res.json({"data":data, "draw": req.query.draw, "recordsTotal": count, "recordsFiltered": count});
  });
});

app.use('/ext/listunspent/:hash', function(req,res){
  db.get_address(req.param('hash'), function(address){
    if (address) {
      var a_ext = {
        unspent_outputs: address.unspent,
      };
      res.send(a_ext);
    } else {
      res.send({ error: 'address not found.', hash: req.param('hash')})
    }
  });
});

app.use('/ext/getbalance/:hash', function(req,res){
  db.get_address(req.param('hash'), function(address){
    if (address) {
      res.send((address.balance / 100000000).toString().replace(/(^-+)/mg, ''));
    } else {
      res.send({ error: 'address not found.', hash: req.param('hash')})
    }
  });
});

app.use('/ext/getdistribution', function(req,res){
  db.get_richlist(settings.coin, function(richlist){
    db.get_stats(settings.coin, function(stats){
      db.get_distribution(richlist, stats, function(dist){
        res.send(dist);
      });
    });
  });
});

app.use('/ext/getlasttxs/:min', function(req,res){
  db.get_last_txs(settings.index.last_txs, (req.params.min * 100000000), function(txs){
    res.send({data: txs});
  });
});

app.use('/ext/connections', function(req,res){
  db.get_peers(function(peers){
    res.send({data: peers});
  });
});

// locals
app.set('title', settings.title);
app.set('symbol', settings.symbol);
app.set('coin', settings.coin);
app.set('locale', locale);
app.set('display', settings.display);
app.set('markets', settings.markets);
app.set('twitter', settings.twitter);
app.set('genesis_block', settings.genesis_block);
app.set('index', settings.index);
app.set('heavy', settings.heavy);
app.set('txcount', settings.txcount);
app.set('nethash', settings.nethash);
app.set('nethash_units', settings.nethash_units);
app.set('show_sent_received', settings.show_sent_received);
app.set('logo', settings.logo);
app.set('theme', settings.theme);
app.set('labels', settings.labels);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
    var err = new Error('Not Found');
    err.status = 404;
    next(err);
});

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
    app.use(function(err, req, res, next) {
        res.status(err.status || 500);
        res.render('error', {
            message: err.message,
            error: err
        });
    });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
        message: err.message,
        error: {}
    });
});

module.exports = app;