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Code Issues Releases Wiki Activity

Check mpd really is listening on port 6600 before allowing nodes to exist.

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Otherwise komponist fails badly.
This commit is contained in:
Dave C-J 2014-01-23 00:19:40 +00:00
parent 03484169e3
commit ea74eebff2
1 changed files with 64 additions and 56 deletions
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26
social/music/69-mpd.js
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@ -15,8 +15,10 @@
**/ **/
var RED = require(process.env.NODE_RED_HOME+"/red/red"); var RED = require(process.env.NODE_RED_HOME+"/red/red");
var util = require("util");
var exec = require('child_process').exec; var exec = require('child_process').exec;
var komponist = require('komponist'); var komponist = require('komponist');
var mpc = "";
exec("which mpd",function(err,stdout,stderr) { exec("which mpd",function(err,stdout,stderr) {
if (stdout.indexOf('mpd') == -1) { if (stdout.indexOf('mpd') == -1) {
util.log('[69-mpd.js] Error: Cannot find "mpd" command. Please install MPD.'); util.log('[69-mpd.js] Error: Cannot find "mpd" command. Please install MPD.');
@ -24,13 +26,17 @@ exec("which mpd",function(err,stdout,stderr) {
} }
}); });
var mpc = ""; exec("netstat -an | grep LISTEN | grep 6600",function(err,stdout,stderr) {
komponist.createConnection(6600, 'localhost', function(err, client) { if (stdout.indexOf('6600') == -1) {
util.log('[69-mpd.js] Error: MPD daemon not listening on port 6600. Please start MPD.');
return;
}
komponist.createConnection(6600, 'localhost', function(err, client) {
if (err) node.error("MPD: Failed to connect to MPD server"); if (err) node.error("MPD: Failed to connect to MPD server");
mpc = client; mpc = client;
}); });
function MPDOut(n) { function MPDOut(n) {
RED.nodes.createNode(this,n); RED.nodes.createNode(this,n);
var node = this; var node = this;
node.mpc = mpc; node.mpc = mpc;
@ -51,10 +57,10 @@ function MPDOut(n) {
node.mpc.on('error', function(err) { node.mpc.on('error', function(err) {
console.log("MPD: Error:",err); console.log("MPD: Error:",err);
}); });
} }
RED.nodes.registerType("mpd out",MPDOut); RED.nodes.registerType("mpd out",MPDOut);
function MPDIn(n) { function MPDIn(n) {
RED.nodes.createNode(this,n); RED.nodes.createNode(this,n);
var node = this; var node = this;
node.mpc = mpc; node.mpc = mpc;
@ -87,5 +93,7 @@ function MPDIn(n) {
this.on("close", function() { this.on("close", function() {
// node.mpc.command("stop"); // node.mpc.command("stop");
}); });
} }
RED.nodes.registerType("mpd in",MPDIn); RED.nodes.registerType("mpd in",MPDIn);
});