Files
homebridge/platforms/Openhab.js
Tommaso Marchionni 65d732415e Update Openhab.js
2015-10-26 00:32:40 +01:00

574 lines
16 KiB
JavaScript

// OpenHAB 1 Platform Shim for HomeBridge
// Written by Tommaso Marchionni
// Based on many of the other HomeBridge platform modules
//
// Revisions:
//
// 17 October 2015 [tommasomarchionni]
// - Initial release
//
// 25 October 2015 [tommasomarchionni]
// - Added WS listener and new OOP structure
//
// Remember to add platform to config.json. Example:
// "platforms": [
// {
// "platform": "Openhab",
// "name": "Openhab",
// "server": "127.0.0.1",
// "port": "8080",
// "sitemap": "demo"
// }
// ],
//
// Example of sitemap in OpenHAB:
// sitemap homekit label="HomeKit" {
// Switch item=Light_1 label="Light 1"
// }
//
// Rollershutter is tested with this binding in OpenHAB:
// command=SWITCH_MULTILEVEL,invert_percent=true,invert_state=false"
// When you attempt to add a device, it will ask for a "PIN code".
// The default code for all HomeBridge accessories is 031-45-154.
//
//////// LIBS /////////
var WebSocket = require('ws');
var request = require("request");
var Service = require("hap-nodejs/lib/Service.js").Service;
var Characteristic = require("hap-nodejs").Characteristic;
var currentModule = this;
var util = require('core-util-is');
util.inherits = require('inherits');
//////// PLATFORM /////////
function OpenhabPlatform(log, config){
this.log = log;
this.user = config["user"];
this.password = config["password"];
this.server = config["server"];
this.port = config["port"];
this.protocol = "http";
this.sitemap = "demo";
if (typeof config["sitemap"] != 'undefined') {
this.sitemap = config["sitemap"];
}
}
OpenhabPlatform.prototype = {
accessories: function(callback) {
var that = this;
this.log("Platform - Fetching OpenHAB devices.");
var itemFactory = new ItemFactory(this);
url = itemFactory.sitemapUrl();
this.log("Platform - Connecting to " + url);
request.get({
url: url,
json: true
}, function(err, response, json) {
if (!err && response.statusCode == 200) {
callback(itemFactory.parseSitemap(json));
} else {
that.log("Platform - There was a problem connecting to OpenHAB.");
}
});
}
};
//////// END PLATFORM /////////
///////// ACCESSORY /////////
function OpenhabAccessory(widget,platform) {}
///////// ABSTRACT ITEM /////////
function AbstractItem(widget,platform){
AbstractItem.super_.call(this,widget,platform);
this.widget = widget;
this.label = widget.label;
this.name = widget.item.name;
this.url = widget.item.link;
this.state = widget.item.state;
this.platform = platform;
this.log = platform.log;
this.setInitialState = false;
this.setFromOpenHAB = false;
this.informationService = undefined;
this.otherService = undefined;
this.listener = undefined;
this.ws = undefined;
};
util.inherits(AbstractItem, OpenhabAccessory);
AbstractItem.prototype.getInformationServices = function() {
informationService = new Service.AccessoryInformation();
informationService
.setCharacteristic(Characteristic.Manufacturer, "OpenHAB")
.setCharacteristic(Characteristic.Model, this.constructor.name)
.setCharacteristic(Characteristic.SerialNumber, "N/A")
.setCharacteristic(Characteristic.Name, this.name);
return informationService;
}
AbstractItem.prototype.checkListener = function() {
if (typeof this.listener == 'undefined' || typeof this.ws == 'undefined') {
this.ws = undefined;
this.listener = new WSListener(this, this.updateCharacteristics.bind(this));
this.listener.startListener();
}
};
///////// END ABSTRACT ITEM /////////
///////// SWITCH ITEM /////////
function SwitchItem(widget,platform){
SwitchItem.super_.call(this, widget,platform);
};
util.inherits(SwitchItem, AbstractItem);
SwitchItem.prototype.getServices = function() {
this.checkListener();
this.setInitialState = true;
this.informationService = this.getInformationServices();
this.otherService = new Service.Lightbulb();
this.otherService.getCharacteristic(Characteristic.On)
.on('set', this.setItem.bind(this))
.on('get', this.getItemPowerState.bind(this))
.setValue(this.state === 'ON');
return [this.informationService, this.otherService];
};
SwitchItem.prototype.updateCharacteristics = function(message) {
this.setFromOpenHAB = true;
this.otherService
.getCharacteristic(Characteristic.On)
.setValue(message === 'ON' ? true : false,
function() {
this.setFromOpenHAB = false;
}.bind(this)
);
};
SwitchItem.prototype.getItemPowerState = function(callback) {
var self = this;
this.checkListener();
this.log("iOS - request power state from " + this.name);
request(this.url + '/state?type=json', function (error, response, body) {
if (!error && response.statusCode == 200) {
self.log("OpenHAB HTTP - response from " + self.name + ": " + body);
callback(undefined,body == "ON" ? true : false);
} else {
self.log("OpenHAB HTTP - error from " + self.name + ": " + error);
}
})
};
SwitchItem.prototype.setItem = function(value, callback) {
var self = this;
this.checkListener();
if (this.setInitialState) {
this.setInitialState = false;
callback();
return;
}
if (this.setFromOpenHAB) {
callback();
return;
}
this.log("iOS - send message to " + this.name + ": " + value);
var command = value ? 'ON' : 'OFF';
request.post(
this.url,
{ body: command },
function (error, response, body) {
if (!error && response.statusCode == 201) {
self.log("OpenHAB HTTP - response from " + self.name + ": " + body);
} else {
self.log("OpenHAB HTTP - error from " + self.name + ": " + error);
}
callback();
}
);
};
///////// END SWITCH ITEM /////////
///////// DIMMER ITEM /////////
function DimmerItem(widget,platform){
DimmerItem.super_.call(this, widget,platform);
};
util.inherits(DimmerItem, AbstractItem);
DimmerItem.prototype.getServices = function() {
this.checkListener();
this.setInitialState = true;
this.informationService = this.getInformationServices();
this.otherService = new Service.Lightbulb();
this.otherService.getCharacteristic(Characteristic.On)
.on('set', this.setItem.bind(this))
.on('get', this.getItemPowerState.bind(this))
.setValue(+this.state > 0);
this.setInitialState = true;
this.otherService.addCharacteristic(Characteristic.Brightness)
.on('set', this.setItem.bind(this))
.on('get', this.getItemBrightnessState.bind(this))
.setValue(+this.state);
return [this.informationService, this.otherService];
};
DimmerItem.prototype.updateCharacteristics = function(message) {
this.setFromOpenHAB = true;
var brightness = +message;
var steps = 2;
if (brightness >= 0) {
this.otherService.getCharacteristic(Characteristic.Brightness)
.setValue(brightness,
function() {
steps--;
if (!steps) {
this.setFromOpenHAB = false;
}
}.bind(this));
this.otherService.getCharacteristic(Characteristic.On)
.setValue(brightness > 0 ? true : false,
function() {
steps--;
if (!steps) {
this.setFromOpenHAB = false;
}
}.bind(this));
}
}
DimmerItem.prototype.getItemPowerState = function(callback) {
var self = this;
this.checkListener();
this.log("iOS - request power state from " + this.name);
request(this.url + '/state?type=json', function (error, response, body) {
if (!error && response.statusCode == 200) {
self.log("OpenHAB HTTP - response from " + self.name + ": " + body);
callback(undefined,+body > 0 ? true : false);
} else {
self.log("OpenHAB HTTP - error from " + self.name + ": " + error);
}
})
};
DimmerItem.prototype.setItem = function(value, callback) {
var self = this;
this.checkListener();
if (this.setInitialState) {
this.setInitialState = false;
callback();
return;
}
if (this.setFromOpenHAB) {
callback();
return;
}
this.log("iOS - send message to " + this.name + ": " + value);
var command = 0;
if (typeof value === 'boolean') {
command = value ? '100' : '0';
} else {
command = "" + value;
}
request.post(
this.url,
{
body: command,
headers: {'Content-Type': 'text/plain'}
},
function (error, response, body) {
if (!error && response.statusCode == 201) {
self.log("OpenHAB HTTP - response from " + self.name + ": " + body);
} else {
self.log("OpenHAB HTTP - error from " + self.name + ": " + error);
}
callback();
}
);
};
DimmerItem.prototype.getItemBrightnessState = function(callback) {
var self = this;
this.log("iOS - request brightness state from " + this.name);
request(this.url + '/state?type=json', function (error, response, body) {
if (!error && response.statusCode == 200) {
self.log("OpenHAB HTTP - response from " + self.name + ": " + body);
callback(undefined,+body);
} else {
self.log("OpenHAB HTTP - error from " + self.name + ": " + error);
}
})
};
///////// END DIMMER ITEM /////////
///////// ROLLERSHUTTER ITEM /////////
function RollershutterItem(widget,platform){
RollershutterItem.super_.call(this, widget,platform);
this.positionState = Characteristic.PositionState.STOPPED;
this.currentPosition = 100;
this.targetPosition = 100;
this.startedPosition = 100;
};
util.inherits(RollershutterItem, AbstractItem);
RollershutterItem.prototype.getServices = function() {
this.checkListener();
this.informationService = this.getInformationServices();
this.otherService = new Service.WindowCovering();
this.otherService.getCharacteristic(Characteristic.CurrentPosition)
.on('get', this.getItemCurrentPosition.bind(this))
.setValue(this.currentPosition);
this.setInitialState = true;
this.otherService.getCharacteristic(Characteristic.TargetPosition)
.on('set', this.setItem.bind(this))
.on('get', this.getItemTargetPosition.bind(this))
.setValue(this.currentPosition);
this.otherService.getCharacteristic(Characteristic.PositionState)
.on('get', this.getItemPositionState.bind(this))
.setValue(this.positionState);
return [this.informationService, this.otherService];
};
RollershutterItem.prototype.updateCharacteristics = function(message) {
console.log(message);
console.log(this.targetPosition);
if (parseInt(message) == this.targetPosition) {
var ps = Characteristic.PositionState.STOPPED;
var cs = parseInt(message);
} else if (parseInt(message) > this.targetPosition){
var ps = Characteristic.PositionState.INCREASING;
var cs = this.startedPosition;
} else {
var ps = Characteristic.PositionState.DECREASING;
var cs = this.startedPosition;
}
this.otherService
.getCharacteristic(Characteristic.PositionState)
.setValue(ps);
this.otherService
.getCharacteristic(Characteristic.CurrentPosition)
.setValue(parseInt(cs));
this.currentPosition = parseInt(cs);
};
RollershutterItem.prototype.setItem = function(value, callback) {
var self = this;
this.checkListener();
if (this.setInitialState) {
this.setInitialState = false;
callback();
return;
}
this.startedPosition = this.currentPosition;
this.log("iOS - send message to " + this.name + ": " + value);
var command = 0;
if (typeof value === 'boolean') {
command = value ? '100' : '0';
} else {
command = "" + value;
}
request.post(
this.url,
{
body: command,
headers: {'Content-Type': 'text/plain'}
},
function (error, response, body) {
if (!error && response.statusCode == 201) {
self.log("OpenHAB HTTP - response from " + self.name + ": " + body);
self.targetPosition = parseInt(value);
} else {
self.log("OpenHAB HTTP - error from " + self.name + ": " + error);
}
callback();
}
);
};
RollershutterItem.prototype.getItemPositionState = function(callback) {
this.log("iOS - request position state from " + this.name);
this.log("Platform - response from " + this.name + ": " + this.positionState);
callback(undefined,this.positionState);
};
RollershutterItem.prototype.getItemTargetPosition = function(callback) {
this.log("iOS - get target position state from " + this.name);
this.log("Platform - response from " + this.name + ": " + this.targetPosition);
callback(undefined,this.targetPosition);
}
RollershutterItem.prototype.getItemCurrentPosition = function(callback) {
var self = this;
this.log("iOS - request current position state from " + this.name);
request(this.url + '/state?type=json', function (error, response, body) {
if (!error && response.statusCode == 200) {
self.log("OpenHAB HTTP - response from " + self.name + ": " +body);
self.currentPosition = parseInt(body);
callback(undefined,parseInt(body));
} else {
self.log("OpenHAB HTTP - error from " + self.name + ": " + error);
}
})
};
///////// END ROLLERSHUTTER ITEM /////////
///////// ITEM UTILITY /////////
function ItemFactory(openhabPlatform){
this.platform = openhabPlatform;
this.log = this.platform.log;
}
ItemFactory.prototype = {
sitemapUrl: function() {
var serverString = this.platform.server;
//TODO da verificare
if (this.platform.user && this.platform.password) {
serverString = this.platform.user + ":" + this.platform.password + "@" + serverString;
}
return this.platform.protocol + "://" + serverString + ":" + this.platform.port + "/rest/sitemaps/" + this.platform.sitemap + "?type=json";
},
parseSitemap: function(jsonSitemap) {
var widgets = [].concat(jsonSitemap.homepage.widget);
var result = [];
for (var i = 0; i < widgets.length; i++) {
var widget = widgets[i];
if (!widget.item) {
//TODO to handle frame
this.log("Platform - The widget '" + widget.label + "' is not an item.");
continue;
}
if (currentModule[widget.item.type] != undefined) {
var accessory = new currentModule[widget.item.type](widget,this.platform);
} else {
this.log("Platform - The widget '" + widget.label + "' of type "+widget.item.type+" is an item not handled.");
continue;
}
this.log("Platform - Accessory Found: " + widget.label);
result.push(accessory);
}
return result;
}
};
///////// END ITEM UTILITY /////////
///////// WS LISTENER /////////
function WSListener(item, callback){
this.item = item;
this.callback = callback;
}
WSListener.prototype = {
startListener: function() {
var self = this;
if (typeof this.item.ws == 'undefined') {
this.item.ws = new WebSocket(this.item.url.replace('http:', 'ws:') + '/state?type=json');
}
this.item.ws.on('open', function() {
self.item.log("OpenHAB WS - new connection for "+self.item.name);
});
this.item.ws.on('message', function(message) {
self.item.log("OpenHAB WS - message from " +self.item.name+": "+ message);
self.callback(message);
});
this.item.ws.on('close', function close() {
self.item.log("OpenHAB WS - closed connection for "+self.item.name);
self.item.listener = undefined;
self.item.ws = undefined;
});
}
};
///////// END WS LISTENER /////////
///////// SUPPORTED ITEMS /////////
module.exports.SwitchItem = SwitchItem;
module.exports.DimmerItem = DimmerItem;
module.exports.RollershutterItem = RollershutterItem;
///////// END SUPPORTED ITEMS /////////
module.exports.accessory = OpenhabAccessory;
module.exports.platform = OpenhabPlatform;