Accept configuration options as environment variables

This also changes the demoSite mode to be off by default.

app.js

@@ -205,27 +205,14 @@ app.runOnStartup = function() {
 
 	console.log("Running RPC Explorer for " + global.coinConfig.name);
 
-	var rpcCredentials = null;
-	if (config.credentials.rpc) {
-		rpcCredentials = config.credentials.rpc;
-
-	} else if (process.env.RPC_HOST) {
-		rpcCredentials = {
-			host: process.env.RPC_HOST,
-			port: process.env.RPC_PORT,
-			username: process.env.RPC_USERNAME,
-			password: process.env.RPC_PASSWORD
-		};
-	}
-
-	if (rpcCredentials) {
-		console.log("Connecting via RPC to node at " + config.credentials.rpc.host + ":" + config.credentials.rpc.port);
+	var rpcCred = config.credentials.rpc;
+	console.log("Connecting via RPC to node at " + rpcCred.host + ":" + rpcCred.port);
 
 	global.client = new bitcoinCore({
-			host: rpcCredentials.host,
-			port: rpcCredentials.port,
-			username: rpcCredentials.username,
-			password: rpcCredentials.password,
+		host: rpcCred.host,
+		port: rpcCred.port,
+		username: rpcCred.username,
+		password: rpcCred.password,
 		timeout: 5000
 	});
 
@@ -246,7 +233,6 @@ app.runOnStartup = function() {
 		}).catch(function(err) {
 			console.log("Error 923grf20fge: " + err + ", error json: " + JSON.stringify(err));
 		});
-	}
 
 	if (config.donationAddresses) {
 		var getDonationAddressQrCode = function(coinId) {

app/config.js

@@ -1,6 +1,6 @@
 var coins = require("./coins.js");
 
-var currentCoin = "BTC";
+var currentCoin = process.env.BTCEXP_COIN || "BTC";
 
 var credentials = require("./defaultCredentials.js");
 try {
@@ -8,8 +8,8 @@ try {
 } catch (err) {}
 
 module.exports = {
-	cookiePassword: "0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
-	demoSite: true,
+	cookiePassword: process.env.BTCEXP_COOKIE_PASSWORD || "0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
+	demoSite: !!process.env.BTCEXP_DEMO,
 	coin: currentCoin,
 
 	rpcBlacklist:[

app/defaultCredentials.js

@@ -1,31 +1,31 @@
 module.exports = {
 	rpc: {
-		host:"127.0.0.1",
-		port:8332,
-		username:"rpc_username",
-		password:"rpc_password"
+		host: process.env.BTCEXP_BITCOIND_HOST || "127.0.0.1",
+		port: process.env.BTCEXP_BITCOIND_PORT || 8332,
+		username: process.env.BTCEXP_BITCOIND_USER,
+		password: process.env.BTCEXP_BITCOIND_PASS,
 	},
 
 	influxdb:{
-		active:false,
-		host:"127.0.0.1",
-		port:8086,
-		database:"influxdb",
-		username:"admin",
-		password:"admin"
+		active: !!process.env.BTCEXP_INFLUXDB_ENABLED,
+		host: process.env.BTCEXP_INFLUXDB_HOST || "127.0.0.1",
+		port: process.env.BTCEXP_INFLUXDB_PORT || 8086,
+		database: process.env.BTCEXP_INFLUXDB_DB || "influxdb",
+		username: process.env.BTCEXP_INFLUXDB_USER || "admin",
+		password: process.env.BTCEXP_INFLUXDB_PASS || "admin"
 	},
 
 	// optional: enter your api access key from ipstack.com below
 	// to include a map of the estimated locations of your node's
 	// peers
 	// format: "ID_FROM_IPSTACK"
-	ipStackComApiAccessKey:null,
+	ipStackComApiAccessKey: process.env.BTCEXP_IPSTACK_KEY,
 
 	// optional: GA tracking code
 	// format: "UA-..."
-	googleAnalyticsTrackingId:null,
+	googleAnalyticsTrackingId: process.env.BTCEXP_GANALYTICS_TRACKING,
 
 	// optional: sentry.io error-tracking url
 	// format: "SENTRY_IO_URL"
-	sentryUrl:null,
+	sentryUrl: process.env.BTCEXP_SENTRY_URL,
 };