2016-10-30 14:01:21 +00:00
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var socketIo = require("socket.io");
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var domain = require("domain");
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var utils = require("./utils");
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var routing = require("./routing");
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var search = require("./search");
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class Socket {
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constructor(server, database) {
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var io = socketIo.listen(server);
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io.sockets.on("connection", (socket) => {
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var d = domain.create();
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d.add(socket);
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d.on("error", function(err) {
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console.error("Uncaught error in socket:", err.stack);
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socket.disconnect();
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});
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new SocketConnection(socket, database);
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});
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}
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}
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class SocketConnection {
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constructor(socket, database) {
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this.socket = socket;
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this.database = database;
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this.padId = null;
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this.bbox = null;
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this.writable = null;
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this._dbHandlers = [ ];
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this.registerSocketHandlers();
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}
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registerSocketHandlers() {
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Object.keys(this.socketHandlers).forEach((i) => {
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this.socket.on(i, (data, callback) => {
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Promise.resolve(data).then(this.socketHandlers[i].bind(this)).then((res) => { // nodeify(callback);
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if(!callback && res)
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console.trace("No callback available to send result of socket handler " + i);
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callback && callback(null, res);
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}, (err) => {
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console.log(err.stack);
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callback && callback(err);
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}).catch(err => {
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console.error("Error in socket handler for "+i, err.stack);
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});
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});
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});
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}
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registerDatabaseHandler(eventName, handler) {
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var func = handler.bind(this);
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this.database.on(eventName, func);
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if(!this._dbHandlers[eventName])
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this._dbHandlers[eventName] = [ ];
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this._dbHandlers[eventName].push(func);
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return () => {
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this.database.removeListener(eventName, func);
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this._dbHandlers[eventName] = this._dbHandlers[eventName].filter(function(it) { return it !== func; });
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};
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}
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registerDatabaseHandlers() {
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Object.keys(this.databaseHandlers).forEach((eventName) => {
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this.registerDatabaseHandler(eventName, this.databaseHandlers[eventName]);
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});
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}
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unregisterDatabaseHandlers() {
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Object.keys(this._dbHandlers).forEach((eventName) => {
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this._dbHandlers[eventName].forEach((it) => {
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this.database.removeListener(eventName, it);
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});
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});
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this._dbHandlers = { };
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}
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sendStreamData(eventName, stream) {
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stream.on("data", (data) => {
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if(data != null)
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this.socket.emit(eventName, data);
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}).on("error", (err) => {
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console.warn("SocketConnection.sendStreamData", err.stack);
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this.socket.emit("error", err);
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});
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}
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getPadObjects(padData) {
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var promises = {
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padData: [ padData ],
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view: utils.streamToArrayPromise(this.database.getViews(padData.id)),
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type: utils.streamToArrayPromise(this.database.getTypes(padData.id)),
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line: utils.streamToArrayPromise(this.database.getPadLines(padData.id))
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};
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if(this.bbox) { // In case bbox is set while fetching pad data
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utils.extend(promises, {
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marker: utils.streamToArrayPromise(this.database.getPadMarkers(padData.id, this.bbox)),
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linePoints: utils.streamToArrayPromise(this.database.getLinePointsForPad(padData.id, this.bbox))
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});
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}
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return utils.promiseAllObject(promises);
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}
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}
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utils.extend(SocketConnection.prototype, {
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socketHandlers: {
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error : function(err) {
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console.error("Error! Disconnecting client.");
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console.error(err.stack);
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this.socket.disconnect();
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},
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setPadId : function(padId) {
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return utils.promiseAuto({
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validate: () => {
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if(typeof padId != "string")
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throw "Invalid pad id";
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if(this.padId != null)
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throw "Pad id already set";
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this.padId = true;
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},
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write: (validate) => {
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return this.database.getPadDataByWriteId(padId);
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},
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read: (validate) => {
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return this.database.getPadData(padId);
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},
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pad: (write, read) => {
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if(write)
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return utils.extend(JSON.parse(JSON.stringify(write)), { writable: true });
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else if(read)
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return utils.extend(JSON.parse(JSON.stringify(read)), { writable: false, writeId: null });
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else
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throw "This pad does not exist";
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}
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}).then(res => {
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this.padId = res.pad.id;
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this.writable = res.pad.writable;
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this.registerDatabaseHandlers();
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return this.getPadObjects(res.pad);
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});
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},
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updateBbox : function(bbox) {
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if(!utils.stripObject(bbox, { top: "number", left: "number", bottom: "number", right: "number", zoom: "number" }))
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return;
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var bboxWithExcept = utils.extend({ }, bbox);
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if(this.bbox && bbox.zoom == this.bbox.zoom)
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bboxWithExcept.except = this.bbox;
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this.bbox = bbox;
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if(this.padId && this.padId !== true) {
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return utils.promiseAllObject({
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marker: utils.streamToArrayPromise(this.database.getPadMarkers(this.padId, bboxWithExcept)),
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linePoints: utils.streamToArrayPromise(this.database.getLinePointsForPad(this.padId, bboxWithExcept))
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});
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}
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},
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disconnect : function() {
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if(this.padId)
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this.unregisterDatabaseHandlers();
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},
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createPad : function(data) {
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return Promise.resolve().then(() => {
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2017-02-10 11:12:47 +00:00
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if(!utils.stripObject(data, { name: "string", defaultViewId: "number", id: "string", writeId: "string", searchEngines: "boolean", description: "string" }))
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2016-10-30 14:01:21 +00:00
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throw "Invalid parameters.";
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if(this.padId)
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throw "Pad already loaded.";
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return this.database.createPad(data);
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}).then((padData) => {
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this.padId = padData.id;
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this.writable = true;
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this.registerDatabaseHandlers();
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return this.getPadObjects(padData);
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});
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},
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editPad : function(data) {
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return Promise.resolve().then(() => {
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2017-02-10 11:12:47 +00:00
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if(!utils.stripObject(data, { name: "string", defaultViewId: "number", id: "string", writeId: "string", searchEngines: "boolean", description: "string" }))
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2016-10-30 14:01:21 +00:00
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.updatePadData(this.padId, data);
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});
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},
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addMarker : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, { lat: "number", lon: "number", name: "string", colour: "string", size: "number", symbol: "string", typeId: "number", data: Object } ))
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.createMarker(this.padId, data);
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});
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},
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editMarker : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, { id: "number", lat: "number", lon: "number", name: "string", colour: "string", size: "number", symbol: "string", typeId: "number", data: Object }))
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.updateMarker(this.padId, data.id, data);
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});
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},
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deleteMarker : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, { id: "number" }))
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.deleteMarker(this.padId, data.id);
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});
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},
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getLineTemplate : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, { typeId: "number" }) || data.typeId == null)
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throw "Invalid parameters.";
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return this.database.getLineTemplate(this.padId, data);
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});
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},
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addLine : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, { routePoints: [ { lat: "number", lon: "number" } ], trackPoints: [ { lat: "number", lon: "number" } ], mode: "string", colour: "string", width: "number", name: "string", typeId: "number", data: Object }))
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.createLine(this.padId, data);
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});
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},
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editLine : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, { id: "number", routePoints: [ { lat: "number", lon: "number" } ], trackPoints: [ { lat: "number", lon: "number" } ], mode: "string", colour: "string", width: "number", name: "string", typeId: "number", data: Object }))
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.updateLine(this.padId, data.id, data);
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});
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},
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deleteLine : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, { id: "number" }))
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.deleteLine(this.padId, data.id);
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});
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},
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addView : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, { name: "string", baseLayer: "string", layers: [ "string" ], top: "number", left: "number", right: "number", bottom: "number", filter: "string" }))
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.createView(this.padId, data);
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});
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},
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editView : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, { id: "number", baseLayer: "string", layers: [ "string" ], top: "number", left: "number", right: "number", bottom: "number", filter: "string" }))
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.updateView(this.padId, data.id, data);
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});
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},
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deleteView : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, { id: "number" }))
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.deleteView(this.padId, data.id);
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});
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},
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addType : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, {
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id: "number",
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name: "string",
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type: "string",
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defaultColour: "string", colourFixed: "boolean",
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defaultSize: "number", sizeFixed: "boolean",
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defaultSymbol: "string", symbolFixed: "boolean",
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defaultWidth: "number", widthFixed: "boolean",
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defaultMode: "string", modeFixed: "boolean",
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fields: [ {
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name: "string",
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type: "string",
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default: "string",
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controlColour: "boolean", controlSize: "boolean", controlSymbol: "boolean", controlWidth: "boolean",
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options: [ { key: "string", value: "string", colour: "string", size: "number", "symbol": "string", width: "number" } ]
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}]
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}))
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throw "Invalid parameters.";
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if(!this.writable)
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throw "In read-only mode.";
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return this.database.createType(this.padId, data);
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});
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},
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editType : function(data) {
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return Promise.resolve().then(() => {
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if(!utils.stripObject(data, {
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id: "number",
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name: "string",
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defaultColour: "string", colourFixed: "boolean",
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defaultSize: "number", sizeFixed: "boolean",
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defaultSymbol: "string", symbolFixed: "boolean",
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defaultWidth: "number", widthFixed: "boolean",
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defaultMode: "string", modeFixed: "boolean",
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fields: [ {
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name: "string",
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type: "string",
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default: "string",
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controlColour: "boolean", controlSize: "boolean", controlSymbol: "boolean", controlWidth: "boolean",
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options: [ { key: "string", value: "string", colour: "string", size: "number", "symbol": "string", width: "number" } ]
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}]
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|
|
|
}))
|
|
|
|
throw "Invalid parameters.";
|
|
|
|
|
|
|
|
if(!this.writable)
|
|
|
|
throw "In read-only mode.";
|
|
|
|
|
|
|
|
return this.database.updateType(this.padId, data.id, data);
|
|
|
|
});
|
|
|
|
},
|
|
|
|
|
|
|
|
deleteType : function(data) {
|
|
|
|
return Promise.resolve().then(() => {
|
|
|
|
if(!utils.stripObject(data, { id: "number" }))
|
|
|
|
throw "Invalid parameters.";
|
|
|
|
|
|
|
|
if(!this.writable)
|
|
|
|
throw "In read-only mode.";
|
|
|
|
|
|
|
|
return this.database.deleteType(this.padId, data.id);
|
|
|
|
});
|
|
|
|
},
|
|
|
|
|
|
|
|
find: function(data) {
|
|
|
|
return Promise.resolve().then(() => {
|
|
|
|
if(!utils.stripObject(data, { query: "string", loadUrls: "boolean" }))
|
|
|
|
throw "Invalid parameters.";
|
|
|
|
|
|
|
|
return search.find(data.query, data.loadUrls);
|
|
|
|
});
|
|
|
|
},
|
|
|
|
|
|
|
|
getRoute: function(data) {
|
|
|
|
return Promise.resolve().then(() => {
|
|
|
|
if(!utils.stripObject(data, { destinations: [ { lat: "number", lon: "number" } ], mode: "string" }))
|
|
|
|
throw "Invalid parameters.";
|
|
|
|
|
2016-11-01 17:18:39 +00:00
|
|
|
return routing.calculateRouting(data.destinations, data.mode, false);
|
2016-10-30 14:01:21 +00:00
|
|
|
});
|
|
|
|
},
|
|
|
|
|
2016-10-31 12:11:36 +00:00
|
|
|
listenToHistory: function() {
|
2016-10-30 14:01:21 +00:00
|
|
|
return Promise.resolve().then(() => {
|
2016-11-01 16:59:55 +00:00
|
|
|
if(!this.writable)
|
|
|
|
throw "In read-only mode.";
|
2016-10-30 14:01:21 +00:00
|
|
|
|
|
|
|
if(this.historyListener)
|
|
|
|
throw "Already listening to history.";
|
|
|
|
|
2016-10-31 12:11:36 +00:00
|
|
|
this.historyListener = this.registerDatabaseHandler("addHistoryEntry", (padId, data) => {
|
|
|
|
if(padId == this.padId)
|
|
|
|
this.socket.emit("history", data);
|
2016-10-30 14:01:21 +00:00
|
|
|
});
|
|
|
|
|
|
|
|
return utils.promiseAllObject({
|
|
|
|
history: utils.streamToArrayPromise(this.database.getHistory(this.padId))
|
|
|
|
});
|
|
|
|
});
|
|
|
|
},
|
|
|
|
|
|
|
|
stopListeningToHistory: function() {
|
2016-10-31 12:11:36 +00:00
|
|
|
if(!this.historyListener)
|
|
|
|
throw "Not listening to history.";
|
|
|
|
|
2016-11-01 16:59:55 +00:00
|
|
|
if(!this.writable)
|
|
|
|
throw "In read-only mode.";
|
|
|
|
|
2016-10-31 12:11:36 +00:00
|
|
|
this.historyListener(); // Unregister db listener
|
|
|
|
this.historyListener = null;
|
|
|
|
},
|
|
|
|
|
|
|
|
revertHistoryEntry: function(data) {
|
|
|
|
var listening = !!this.historyListener;
|
|
|
|
|
2016-10-30 14:01:21 +00:00
|
|
|
return Promise.resolve().then(() => {
|
2016-10-31 12:11:36 +00:00
|
|
|
if(!utils.stripObject(data, { id: "number" }))
|
|
|
|
throw "Invalid parameters.";
|
|
|
|
|
2016-11-01 16:59:55 +00:00
|
|
|
if(!this.writable)
|
|
|
|
throw "In read-only mode.";
|
|
|
|
|
2016-10-31 12:11:36 +00:00
|
|
|
if(listening)
|
|
|
|
this.socketHandlers.stopListeningToHistory.call(this);
|
2016-10-30 14:01:21 +00:00
|
|
|
|
2016-10-31 12:11:36 +00:00
|
|
|
return this.database.revertHistoryEntry(this.padId, data.id);
|
|
|
|
}).then(() => {
|
|
|
|
if(listening)
|
|
|
|
return this.socketHandlers.listenToHistory.call(this);
|
2016-10-30 14:01:21 +00:00
|
|
|
});
|
2016-10-31 12:11:36 +00:00
|
|
|
}
|
2016-10-30 14:01:21 +00:00
|
|
|
|
|
|
|
/*copyPad : function(data, callback) {
|
|
|
|
if(!utils.stripObject(data, { toId: "string" }))
|
|
|
|
return callback("Invalid parameters.");
|
|
|
|
|
|
|
|
this.database.copyPad(this.padId, data.toId, callback);
|
|
|
|
}*/
|
|
|
|
},
|
|
|
|
|
|
|
|
databaseHandlers: {
|
|
|
|
line: function(padId, data) {
|
|
|
|
if(padId == this.padId)
|
|
|
|
this.socket.emit("line", data);
|
|
|
|
},
|
|
|
|
|
|
|
|
linePoints: function(padId, lineId, trackPoints) {
|
|
|
|
if(padId == this.padId)
|
|
|
|
this.socket.emit("linePoints", { reset: true, id: lineId, trackPoints : (this.bbox ? routing.prepareForBoundingBox(trackPoints, this.bbox) : [ ]) });
|
|
|
|
},
|
|
|
|
|
|
|
|
deleteLine: function(padId, data) {
|
|
|
|
if(padId == this.padId)
|
|
|
|
this.socket.emit("deleteLine", data);
|
|
|
|
},
|
|
|
|
|
|
|
|
marker: function(padId, data) {
|
|
|
|
if(padId == this.padId && this.bbox && utils.isInBbox(data, this.bbox))
|
|
|
|
this.socket.emit("marker", data);
|
|
|
|
},
|
|
|
|
|
|
|
|
deleteMarker: function(padId, data) {
|
|
|
|
if(padId == this.padId)
|
|
|
|
this.socket.emit("deleteMarker", data);
|
|
|
|
},
|
|
|
|
|
|
|
|
type: function(padId, data) {
|
|
|
|
if(padId == this.padId)
|
|
|
|
this.socket.emit("type", data);
|
|
|
|
},
|
|
|
|
|
|
|
|
deleteType: function(padId, data) {
|
|
|
|
if(padId == this.padId)
|
|
|
|
this.socket.emit("deleteType", data);
|
|
|
|
},
|
|
|
|
|
|
|
|
padData: function(padId, data) {
|
|
|
|
if(padId == this.padId) {
|
|
|
|
var dataClone = JSON.parse(JSON.stringify(data));
|
|
|
|
if(!this.writable)
|
|
|
|
dataClone.writeId = null;
|
|
|
|
|
|
|
|
this.padId = data.id;
|
|
|
|
|
|
|
|
this.socket.emit("padData", dataClone);
|
|
|
|
}
|
|
|
|
},
|
|
|
|
|
|
|
|
view: function(padId, data) {
|
|
|
|
if(padId == this.padId)
|
|
|
|
this.socket.emit("view", data);
|
|
|
|
},
|
|
|
|
|
|
|
|
deleteView: function(padId, data) {
|
|
|
|
if(padId == this.padId)
|
|
|
|
this.socket.emit("deleteView", data);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
module.exports = Socket;
|