kopia lustrzana https://github.com/FacilMap/facilmap
170 wiersze
4.4 KiB
JavaScript
170 wiersze
4.4 KiB
JavaScript
var http = require("http");
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var socketIo = require("socket.io");
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var config = require("../config");
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var listeners = require("./listeners");
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var database = require("./database");
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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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database.connect(function(err) {
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if(err)
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throw err;
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var app = http.createServer();
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app.listen(config.port, config.host);
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var io = socketIo.listen(app);
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io.sockets.on("connection", function(socket) {
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var d = domain.create();
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d.add(socket);
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var handlers = {
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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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socket.disconnect();
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},
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setPadId : function(padId) {
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if(socket.padId != null) {
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return;
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}
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socket.padId = true;
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database.getPadData(padId, function(err, data) {
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if(err)
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return _sendData(socket, "padData", err);
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socket.padId = data.id;
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socket.writable = data.writable;
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listeners.addPadListener(socket);
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_sendData(socket, "padData", null, data);
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_sendStreamData(socket, "view", database.getViews(socket.padId));
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_sendStreamData(socket, "line", database.getPadLines(socket.padId));
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if(socket.bbox) { // In case bbox is set while fetching pad data
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_sendStreamData(socket, "marker", database.getPadMarkers(socket.padId, socket.bbox));
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_sendStreamData(socket, "linePoints", database.getLinePoints(socket.padId, socket.bbox));
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}
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});
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},
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updateBbox : function(bbox) {
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var bboxWithExcept = utils.extend({ }, bbox);
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if(socket.bbox && bbox.zoom == socket.bbox.zoom)
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bboxWithExcept.except = socket.bbox;
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socket.bbox = bbox;
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if(socket.padId && socket.padId !== true) {
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_sendStreamData(socket, "marker", database.getPadMarkers(socket.padId, bboxWithExcept));
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_sendStreamData(socket, "linePoints", database.getLinePoints(socket.padId, bboxWithExcept));
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}
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},
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disconnect : function() {
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if(socket.padId)
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listeners.removePadListener(socket);
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},
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editPad : function(data, callback) {
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if(!socket.writable)
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return callback(new Error("In read-only mode."));
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database.updatePadData(socket.padId, data, callback);
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},
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addMarker : function(data, callback) {
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if(!socket.writable)
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return callback(new Error("In read-only mode."));
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database.createMarker(socket.padId, data, callback);
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},
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editMarker : function(data, callback) {
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if(!socket.writable)
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return callback(new Error("In read-only mode."));
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database.updateMarker(data.id, data, callback);
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},
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deleteMarker : function(data, callback) {
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if(!socket.writable)
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return callback(new Error("In read-only mode."));
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database.deleteMarker(data.id, callback);
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},
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addLine : function(data, callback) {
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if(!socket.writable)
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return callback(new Error("In read-only mode."));
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database.createLine(socket.padId, data, callback);
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},
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editLine : function(data, callback) {
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if(!socket.writable)
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return callback(new Error("In read-only mode."));
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database.updateLine(data.id, data, callback);
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},
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deleteLine : function(data, callback) {
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if(!socket.writable)
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return callback(new Error("In read-only mode."));
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database.deleteLine(data.id, callback);
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},
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addView : function(data, callback) {
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if(!socket.writable)
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return callback(new Error("In read-only mode."));
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database.createView(socket.padId, data, callback);
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},
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editView : function(data, callback) {
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if(!socket.writable)
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return callback(new Error("In read-only mode."));
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database.updateView(data.id, data, callback);
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},
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deleteView : function(data, callback) {
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if(!socket.writable)
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return callback(new Error("In read-only mode."));
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database.deleteView(data.id, callback);
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},
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copyPad : function(data, callback) {
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database.copyPad(socket.padId, data.toId, callback);
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}
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};
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for(var i in handlers)
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socket.on(i, handlers[i]);
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});
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});
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function _sendData(socket, eventName, err, data) {
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if(err) {
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console.warn("_sendData", err, err.stack);
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return socket.emit("error", err);
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}
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socket.emit(eventName, data);
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}
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function _sendStreamData(socket, eventName, stream) {
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stream.on("data", function(data) {
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if(data != null)
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socket.emit(eventName, data);
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}).on("error", function(err) {
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console.warn("_sendStreamData", err, err.stack);
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socket.emit("error", err);
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})
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} |