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/**
* Copyright 2013 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
module.exports = function(RED) {
var util = require("util");
var events = require("events");
var debuglength = RED.settings.debugMaxLength||1000;
var useColors = false;
// util.inspect.styles.boolean = "red";
function DebugNode(n) {
RED.nodes.createNode(this,n);
this.name = n.name;
this.complete = n.complete;
this.console = n.console;
this.active = (n.active == null)||n.active;
var node = this;
this.on("input",function(msg) {
if (this.complete == "true") { // debug complete msg object
if (this.console == "true") {
node.log("\n"+util.inspect(msg, {colors:useColors, depth:10}));
}
if (this.active) {
sendDebug({id:this.id,name:this.name,topic:msg.topic,msg:msg,_path:msg._path});
}
} else { // debug just the msg.payload
if (this.console == "true") {
if (typeof msg.payload === "string") {
node.log((msg.payload.indexOf("\n") != -1 ? "\n" : "") + msg.payload);
}
else if (typeof msg.payload === "object") { node.log("\n"+util.inspect(msg.payload, {colors:useColors, depth:10})); }
else { node.log(util.inspect(msg.payload, {colors:useColors})); }
}
if (this.active) {
sendDebug({id:this.id,name:this.name,topic:msg.topic,msg:msg.payload,_path:msg._path});
}
}
});
}
RED.nodes.registerType("debug",DebugNode);
function sendDebug(msg) {
if (msg.msg instanceof Error) {
msg.msg = msg.msg.toString();
} else if (msg.msg instanceof Buffer) {
msg.msg = "(Buffer) "+msg.msg.toString('hex');
} else if (typeof msg.msg === 'object') {
var seen = [];
var ty = "(Object) ";
if (util.isArray(msg.msg)) { ty = "(Array) "; }
msg.msg = ty + JSON.stringify(msg.msg, function(key, value) {
if (typeof value === 'object' && value !== null) {
if (seen.indexOf(value) !== -1) { return "[circular]"; }
seen.push(value);
}
return value;
}," ");
seen = null;
} else if (typeof msg.msg === "boolean") {
msg.msg = "(boolean) "+msg.msg.toString();
} else if (msg.msg === 0) {
msg.msg = "0";
} else if (msg.msg == null) {
msg.msg = "(undefined)";
}
if (msg.msg.length > debuglength) {
msg.msg = msg.msg.substr(0,debuglength) +" ....";
}
RED.comms.publish("debug",msg);
}
DebugNode.logHandler = new events.EventEmitter();
DebugNode.logHandler.on("log",function(msg) {
if (msg.level == "warn" || msg.level == "error") {
sendDebug(msg);
}
});
RED.log.addHandler(DebugNode.logHandler);
RED.httpAdmin.post("/debug/:id/:state", function(req,res) {
var node = RED.nodes.getNode(req.params.id);
var state = req.params.state;
if (node != null) {
if (state === "enable") {
node.active = true;
res.send(200);
} else if (state === "disable") {
node.active = false;
res.send(201);
} else {
res.send(404);
}
} else {
res.send(404);
}
});
}
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