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'use strict';
/**
* @version 2.2.2
* @overview QZ Tray Connector
* <p/>
* Connects a web client to the QZ Tray software.
* Enables printing and device communication from javascript.
*/
var qz = (function() {
///// POLYFILLS /////
if (!Array.isArray) {
Array.isArray = function(arg) {
return Object.prototype.toString.call(arg) === '[object Array]';
};
}
if (!Number.isInteger) {
Number.isInteger = function(value) {
return typeof value === 'number' && isFinite(value) && Math.floor(value) === value;
};
}
// from SHA implementation
if (typeof String.prototype.utf8Encode == 'undefined') {
String.prototype.utf8Encode = function() { return unescape(encodeURIComponent(this)); };
}
if (typeof String.prototype.utf8Decode == 'undefined') {
String.prototype.utf8Decode = function() {
try { return decodeURIComponent(escape(this)); }
catch(e) { return this; } // invalid UTF-8? return as-is
};
}
///// PRIVATE METHODS /////
var _qz = {
VERSION: "2.2.2", //must match @version above
DEBUG: false,
log: {
/** Debugging messages */
trace: function() { if (_qz.DEBUG) { console.log.apply(console, arguments); } },
/** General messages */
info: function() { console.info.apply(console, arguments); },
/** General warnings */
warn: function() { console.warn.apply(console, arguments); },
/** Debugging errors */
allay: function() { if (_qz.DEBUG) { console.warn.apply(console, arguments); } },
/** General errors */
error: function() { console.error.apply(console, arguments); }
},
//stream types
streams: {
serial: 'SERIAL', usb: 'USB', hid: 'HID', printer: 'PRINTER', file: 'FILE', socket: 'SOCKET'
},
websocket: {
/** The actual websocket object managing the connection. */
connection: null,
/** Default parameters used on new connections. Override values using options parameter on {@link qz.websocket.connect}. */
connectConfig: {
host: ["localhost", "localhost.qz.io"], //hosts QZ Tray can be running on
hostIndex: 0, //internal var - index on host array
usingSecure: true, //boolean use of secure protocol
protocol: {
secure: "wss://", //secure websocket
insecure: "ws://" //insecure websocket
},
port: {
secure: [8181, 8282, 8383, 8484], //list of secure ports QZ Tray could be listening on
insecure: [8182, 8283, 8384, 8485], //list of insecure ports QZ Tray could be listening on
portIndex: 0 //internal var - index on active port array
},
keepAlive: 60, //time between pings to keep connection alive, in seconds
retries: 0, //number of times to reconnect before failing
delay: 0 //seconds before firing a connection
},
setup: {
/** Loop through possible ports to open connection, sets web socket calls that will settle the promise. */
findConnection: function(config, resolve, reject) {
//force flag if missing ports
if (!config.port.secure.length) {
if (!config.port.insecure.length) {
reject(new Error("No ports have been specified to connect over"));
return;
} else if (config.usingSecure) {
_qz.log.error("No secure ports specified - forcing insecure connection");
config.usingSecure = false;
}
} else if (!config.port.insecure.length && !config.usingSecure) {
_qz.log.trace("No insecure ports specified - forcing secure connection");
config.usingSecure = true;
}
var deeper = function() {
config.port.portIndex++;
if ((config.usingSecure && config.port.portIndex >= config.port.secure.length)
|| (!config.usingSecure && config.port.portIndex >= config.port.insecure.length)) {
if (config.hostIndex >= config.host.length - 1) {
//give up, all hope is lost
reject(new Error("Unable to establish connection with QZ"));
return;
} else {
config.hostIndex++;
config.port.portIndex = 0;
}
}
// recursive call until connection established or all ports are exhausted
_qz.websocket.setup.findConnection(config, resolve, reject);
};
var address;
if (config.usingSecure) {
address = config.protocol.secure + config.host[config.hostIndex] + ":" + config.port.secure[config.port.portIndex];
} else {
address = config.protocol.insecure + config.host[config.hostIndex] + ":" + config.port.insecure[config.port.portIndex];
}
try {
_qz.log.trace("Attempting connection", address);
_qz.websocket.connection = new _qz.tools.ws(address);
}
catch(err) {
_qz.log.error(err);
deeper();
return;
}
if (_qz.websocket.connection != null) {
_qz.websocket.connection.established = false;
//called on successful connection to qz, begins setup of websocket calls and resolves connect promise after certificate is sent
_qz.websocket.connection.onopen = function(evt) {
if (!_qz.websocket.connection.established) {
_qz.log.trace(evt);
_qz.log.info("Established connection with QZ Tray on " + address);
_qz.websocket.setup.openConnection({ resolve: resolve, reject: reject });
if (config.keepAlive > 0) {
var interval = setInterval(function() {
if (!_qz.tools.isActive()) {
clearInterval(interval);
return;
}
_qz.websocket.connection.send("ping");
}, config.keepAlive * 1000);
}
}
};
//called during websocket close during setup
_qz.websocket.connection.onclose = function() {
// Safari compatibility fix to raise error event
if (_qz.websocket.connection && typeof navigator !== 'undefined' && navigator.userAgent.indexOf('Safari') != -1 && navigator.userAgent.indexOf('Chrome') == -1) {
_qz.websocket.connection.onerror();
}
};
//called for errors during setup (such as invalid ports), reject connect promise only if all ports have been tried
_qz.websocket.connection.onerror = function(evt) {
_qz.log.trace(evt);
_qz.websocket.connection = null;
deeper();
};
} else {
reject(new Error("Unable to create a websocket connection"));
}
},
/** Finish setting calls on successful connection, sets web socket calls that won't settle the promise. */
openConnection: function(openPromise) {
_qz.websocket.connection.established = true;
//called when an open connection is closed
_qz.websocket.connection.onclose = function(evt) {
_qz.log.trace(evt);
_qz.websocket.connection = null;
_qz.websocket.callClose(evt);
_qz.log.info("Closed connection with QZ Tray");
for(var uid in _qz.websocket.pendingCalls) {
if (_qz.websocket.pendingCalls.hasOwnProperty(uid)) {
_qz.websocket.pendingCalls[uid].reject(new Error("Connection closed before response received"));
}
}
//if this is set, then an explicit close call was made
if (this.promise != undefined) {
this.promise.resolve();
}
};
//called for any errors with an open connection
_qz.websocket.connection.onerror = function(evt) {
_qz.websocket.callError(evt);
};
//send JSON objects to qz
_qz.websocket.connection.sendData = function(obj) {
_qz.log.trace("Preparing object for websocket", obj);
if (obj.timestamp == undefined) {
obj.timestamp = Date.now();
if (typeof obj.timestamp !== 'number') {
obj.timestamp = new Date().getTime();
}
}
if (obj.promise != undefined) {
obj.uid = _qz.websocket.setup.newUID();
_qz.websocket.pendingCalls[obj.uid] = obj.promise;
}
// track requesting monitor
obj.position = {
x: typeof screen !== 'undefined' ? ((screen.availWidth || screen.width) / 2) + (screen.left || screen.availLeft || 0) : 0,
y: typeof screen !== 'undefined' ? ((screen.availHeight || screen.height) / 2) + (screen.top || screen.availTop || 0) : 0
};
try {
if (obj.call != undefined && obj.signature == undefined && _qz.security.needsSigned(obj.call)) {
var signObj = {
call: obj.call,
params: obj.params,
timestamp: obj.timestamp
};
//make a hashing promise if not already one
var hashing = _qz.tools.hash(_qz.tools.stringify(signObj));
if (!hashing.then) {
hashing = _qz.tools.promise(function(resolve) {
resolve(hashing);
});
}
hashing.then(function(hashed) {
return _qz.security.callSign(hashed);
}).then(function(signature) {
_qz.log.trace("Signature for call", signature);
obj.signature = signature || "";
obj.signAlgorithm = _qz.security.signAlgorithm;
_qz.signContent = undefined;
_qz.websocket.connection.send(_qz.tools.stringify(obj));
});
} else {
_qz.log.trace("Signature for call", obj.signature);
//called for pre-signed content and (unsigned) setup calls
_qz.websocket.connection.send(_qz.tools.stringify(obj));
}
}
catch(err) {
_qz.log.error(err);
if (obj.promise != undefined) {
obj.promise.reject(err);
delete _qz.websocket.pendingCalls[obj.uid];
}
}
};
//receive message from qz
_qz.websocket.connection.onmessage = function(evt) {
var returned = JSON.parse(evt.data);
if (returned.uid == null) {
if (returned.type == null) {
//incorrect response format, likely connected to incompatible qz version
_qz.websocket.connection.close(4003, "Connected to incompatible QZ Tray version");
} else {
//streams (callbacks only, no promises)
switch(returned.type) {
case _qz.streams.serial:
if (!returned.event) {
returned.event = JSON.stringify({ portName: returned.key, output: returned.data });
}
_qz.serial.callSerial(JSON.parse(returned.event));
break;
case _qz.streams.socket:
_qz.socket.callSocket(JSON.parse(returned.event));
break;
case _qz.streams.usb:
if (!returned.event) {
returned.event = JSON.stringify({ vendorId: returned.key[0], productId: returned.key[1], output: returned.data });
}
_qz.usb.callUsb(JSON.parse(returned.event));
break;
case _qz.streams.hid:
_qz.hid.callHid(JSON.parse(returned.event));
break;
case _qz.streams.printer:
_qz.printers.callPrinter(JSON.parse(returned.event));
break;
case _qz.streams.file:
_qz.file.callFile(JSON.parse(returned.event));
break;
default:
_qz.log.allay("Cannot determine stream type for callback", returned);
break;
}
}
return;
}
_qz.log.trace("Received response from websocket", returned);
var promise = _qz.websocket.pendingCalls[returned.uid];
if (promise == undefined) {
_qz.log.allay('No promise found for returned response');
} else {
if (returned.error != undefined) {
promise.reject(new Error(returned.error));
} else {
promise.resolve(returned.result);
}
}
delete _qz.websocket.pendingCalls[returned.uid];
};
//send up the certificate before making any calls
//also gives the user a chance to deny the connection
function sendCert(cert) {
if (cert === undefined) { cert = null; }
//websocket setup, query what version is connected
qz.api.getVersion().then(function(version) {
_qz.websocket.connection.version = version;
_qz.websocket.connection.semver = version.toLowerCase().replace(/-rc\./g, "-rc").split(/[\\+\\.-]/g);
for(var i = 0; i < _qz.websocket.connection.semver.length; i++) {
try {
if (i == 3 && _qz.websocket.connection.semver[i].toLowerCase().indexOf("rc") == 0) {
// Handle "rc1" pre-release by negating build info
_qz.websocket.connection.semver[i] = -(_qz.websocket.connection.semver[i].replace(/\D/g, ""));
continue;
}
_qz.websocket.connection.semver[i] = parseInt(_qz.websocket.connection.semver[i]);
}
catch(ignore) {}
if (_qz.websocket.connection.semver.length < 4) {
_qz.websocket.connection.semver[3] = 0;
}
}
//algorithm can be declared before a connection, check for incompatibilities now that we have one
_qz.compatible.algorithm(true);
}).then(function() {
_qz.websocket.connection.sendData({ certificate: cert, promise: openPromise });
});
}
_qz.security.callCert().then(sendCert).catch(function(error) {
_qz.log.warn("Failed to get certificate:", error);
sendCert(null);
});
},
/** Generate unique ID used to map a response to a call. */
newUID: function() {
var len = 6;
return (new Array(len + 1).join("0") + (Math.random() * Math.pow(36, len) << 0).toString(36)).slice(-len)
}
},
dataPromise: function(callName, params, signature, signingTimestamp) {
return _qz.tools.promise(function(resolve, reject) {
var msg = {
call: callName,
promise: { resolve: resolve, reject: reject },
params: params,
signature: signature,
timestamp: signingTimestamp
};
_qz.websocket.connection.sendData(msg);
});
},
/** Library of promises awaiting a response, uid -> promise */
pendingCalls: {},
/** List of functions to call on error from the websocket. */
errorCallbacks: [],
/** Calls all functions registered to listen for errors. */
callError: function(evt) {
if (Array.isArray(_qz.websocket.errorCallbacks)) {
for(var i = 0; i < _qz.websocket.errorCallbacks.length; i++) {
_qz.websocket.errorCallbacks[i](evt);
}
} else {
_qz.websocket.errorCallbacks(evt);
}
},
/** List of function to call on closing from the websocket. */
closedCallbacks: [],
/** Calls all functions registered to listen for closing. */
callClose: function(evt) {
if (Array.isArray(_qz.websocket.closedCallbacks)) {
for(var i = 0; i < _qz.websocket.closedCallbacks.length; i++) {
_qz.websocket.closedCallbacks[i](evt);
}
} else {
_qz.websocket.closedCallbacks(evt);
}
}
},
printing: {
/** Default options used for new printer configs. Can be overridden using {@link qz.configs.setDefaults}. */
defaultConfig: {
//value purposes are explained in the qz.configs.setDefaults docs
bounds: null,
colorType: 'color',
copies: 1,
density: 0,
duplex: false,
fallbackDensity: null,
interpolation: 'bicubic',
jobName: null,
legacy: false,
margins: 0,
orientation: null,
paperThickness: null,
printerTray: null,
rasterize: false,
rotation: 0,
scaleContent: true,
size: null,
units: 'in',
forceRaw: false,
encoding: null,
spool: null
}
},
serial: {
/** List of functions called when receiving data from serial connection. */
serialCallbacks: [],
/** Calls all functions registered to listen for serial events. */
callSerial: function(streamEvent) {
if (Array.isArray(_qz.serial.serialCallbacks)) {
for(var i = 0; i < _qz.serial.serialCallbacks.length; i++) {
_qz.serial.serialCallbacks[i](streamEvent);
}
} else {
_qz.serial.serialCallbacks(streamEvent);
}
}
},
socket: {
/** List of functions called when receiving data from network socket connection. */
socketCallbacks: [],
/** Calls all functions registered to listen for network socket events. */
callSocket: function(socketEvent) {
if (Array.isArray(_qz.socket.socketCallbacks)) {
for(var i = 0; i < _qz.socket.socketCallbacks.length; i++) {
_qz.socket.socketCallbacks[i](socketEvent);
}
} else {
_qz.socket.socketCallbacks(socketEvent);
}
}
},
usb: {
/** List of functions called when receiving data from usb connection. */
usbCallbacks: [],
/** Calls all functions registered to listen for usb events. */
callUsb: function(streamEvent) {
if (Array.isArray(_qz.usb.usbCallbacks)) {
for(var i = 0; i < _qz.usb.usbCallbacks.length; i++) {
_qz.usb.usbCallbacks[i](streamEvent);
}
} else {
_qz.usb.usbCallbacks(streamEvent);
}
}
},
hid: {
/** List of functions called when receiving data from hid connection. */
hidCallbacks: [],
/** Calls all functions registered to listen for hid events. */
callHid: function(streamEvent) {
if (Array.isArray(_qz.hid.hidCallbacks)) {
for(var i = 0; i < _qz.hid.hidCallbacks.length; i++) {
_qz.hid.hidCallbacks[i](streamEvent);
}
} else {
_qz.hid.hidCallbacks(streamEvent);
}
}
},
printers: {
/** List of functions called when receiving data from printer connection. */
printerCallbacks: [],
/** Calls all functions registered to listen for printer events. */
callPrinter: function(streamEvent) {
if (Array.isArray(_qz.printers.printerCallbacks)) {
for(var i = 0; i < _qz.printers.printerCallbacks.length; i++) {
_qz.printers.printerCallbacks[i](streamEvent);
}
} else {
_qz.printers.printerCallbacks(streamEvent);
}
}
},
file: {
/** List of functions called when receiving info regarding file changes. */
fileCallbacks: [],
/** Calls all functions registered to listen for file events. */
callFile: function(streamEvent) {
if (Array.isArray(_qz.file.fileCallbacks)) {
for(var i = 0; i < _qz.file.fileCallbacks.length; i++) {
_qz.file.fileCallbacks[i](streamEvent);
}
} else {
_qz.file.fileCallbacks(streamEvent);
}
}
},
security: {
/** Function used to resolve promise when acquiring site's public certificate. */
certHandler: function(resolve, reject) { reject(); },
/** Called to create new promise (using {@link _qz.security.certHandler}) for certificate retrieval. */
callCert: function() {
if (typeof _qz.security.certHandler.then === 'function') {
//already a promise
return _qz.security.certHandler;
} else if (_qz.security.certHandler.constructor.name === "AsyncFunction") {
//already callable as a promise
return _qz.security.certHandler();
} else {
//turn into a promise
return _qz.tools.promise(_qz.security.certHandler);
}
},
/** Function used to create promise resolver when requiring signed calls. */
signatureFactory: function() { return function(resolve) { resolve(); } },
/** Called to create new promise (using {@link _qz.security.signatureFactory}) for signed calls. */
callSign: function(toSign) {
if (_qz.security.signatureFactory.constructor.name === "AsyncFunction") {
//use directly
return _qz.security.signatureFactory(toSign);
} else {
//use in a promise
return _qz.tools.promise(_qz.security.signatureFactory(toSign));
}
},
/** Signing algorithm used on signatures */
signAlgorithm: "SHA1",
needsSigned: function(callName) {
const undialoged = [
"printers.getStatus",
"printers.stopListening",
"usb.isClaimed",
"usb.closeStream",
"usb.releaseDevice",
"hid.stopListening",
"hid.isClaimed",
"hid.closeStream",
"hid.releaseDevice",
"file.stopListening",
"getVersion"
];
return callName != null && undialoged.indexOf(callName) === -1;
}
},
tools: {
/** Create a new promise */
promise: function(resolver) {
//prefer global object for historical purposes
if (typeof RSVP !== 'undefined') {
return new RSVP.Promise(resolver);
} else if (typeof Promise !== 'undefined') {
return new Promise(resolver);
} else {
_qz.log.error("Promise/A+ support is required. See qz.api.setPromiseType(...)");
}
},
/** Stub for rejecting with an Error from withing a Promise */
reject: function(error) {
return _qz.tools.promise(function(resolve, reject) {
reject(error);
});
},
stringify: function(object) {
//old versions of prototype affect stringify
var pjson = Array.prototype.toJSON;
delete Array.prototype.toJSON;
function skipKeys(key, value) {
if (key === "promise") {
return undefined;
}
return value;
}
var result = JSON.stringify(object, skipKeys);
if (pjson) {
Array.prototype.toJSON = pjson;
}
return result;
},
hash: function(data) {
//prefer global object for historical purposes
if (typeof Sha256 !== 'undefined') {
return Sha256.hash(data);
} else {
return _qz.SHA.hash(data);
}
},
ws: typeof WebSocket !== 'undefined' ? WebSocket : null,
absolute: function(loc) {
if (typeof window !== 'undefined' && typeof document.createElement === 'function') {
var a = document.createElement("a");
a.href = loc;
return a.href;
} else if (typeof exports === 'object') {
//node.js
require('path').resolve(loc);
}
return loc;
},
relative: function(data) {
for(var i = 0; i < data.length; i++) {
if (data[i].constructor === Object) {
var absolute = false;
if (data[i].data && data[i].data.search(/data:image\/\w+;base64,/) === 0) {
//upgrade from old base64 behavior
data[i].flavor = "base64";
data[i].data = data[i].data.replace(/^data:image\/\w+;base64,/, "");
} else if (data[i].flavor) {
//if flavor is known, we can directly check for absolute flavor types
if (["FILE", "XML"].indexOf(data[i].flavor.toUpperCase()) > -1) {
absolute = true;
}
} else if (data[i].format && ["HTML", "IMAGE", "PDF", "FILE", "XML"].indexOf(data[i].format.toUpperCase()) > -1) {
//if flavor is not known, all valid pixel formats default to file flavor
//previous v2.0 data also used format as what is now flavor, so we check for those values here too
absolute = true;
} else if (data[i].type && ((["PIXEL", "IMAGE", "PDF"].indexOf(data[i].type.toUpperCase()) > -1 && !data[i].format)
|| (["HTML", "PDF"].indexOf(data[i].type.toUpperCase()) > -1 && (!data[i].format || data[i].format.toUpperCase() === "FILE")))) {
//if all we know is pixel type, then it is image's file flavor
//previous v2.0 data also used type as what is now format, so we check for those value here too
absolute = true;
}
if (absolute) {
//change relative links to absolute
data[i].data = _qz.tools.absolute(data[i].data);
}
if (data[i].options && typeof data[i].options.overlay === 'string') {
data[i].options.overlay = _qz.tools.absolute(data[i].options.overlay);
}
}
}
},
/** Performs deep copy to target from remaining params */
extend: function(target) {
//special case when reassigning properties as objects in a deep copy
if (typeof target !== 'object') {
target = {};
}
for(var i = 1; i < arguments.length; i++) {
var source = arguments[i];
if (!source) { continue; }
for(var key in source) {
if (source.hasOwnProperty(key)) {
if (target === source[key]) { continue; }
if (source[key] && source[key].constructor && source[key].constructor === Object) {
var clone;
if (Array.isArray(source[key])) {
clone = target[key] || [];
} else {
clone = target[key] || {};
}
target[key] = _qz.tools.extend(clone, source[key]);
} else if (source[key] !== undefined) {
target[key] = source[key];
}
}
}
}
return target;
},
versionCompare: function(major, minor, patch, build) {
if (_qz.tools.assertActive()) {
var semver = _qz.websocket.connection.semver;
if (semver[0] != major) {
return semver[0] - major;
}
if (minor != undefined && semver[1] != minor) {
return semver[1] - minor;
}
if (patch != undefined && semver[2] != patch) {
return semver[2] - patch;
}
if (build != undefined && semver.length > 3 && semver[3] != build) {
return Number.isInteger(semver[3]) && Number.isInteger(build) ? semver[3] - build : semver[3].toString().localeCompare(build.toString());
}
return 0;
}
},
isVersion: function(major, minor, patch, build) {
return _qz.tools.versionCompare(major, minor, patch, build) == 0;
},
isActive: function() {
return _qz.websocket.connection != null && _qz.websocket.connection.established;
},
assertActive: function() {
if (_qz.tools.isActive()) {
return true;
}
// Promise won't reject on throw; yet better than 'undefined'
throw new Error("A connection to QZ has not been established yet");
}
},
compatible: {
/** Converts message format to a previous version's */
data: function(printData) {
if (_qz.tools.isVersion(2, 0)) {
/*
2.0.x conversion
-----
type=pixel -> use format as 2.0 type (unless 'command' format, which forces 2.0 'raw' type)
type=raw -> 2.0 type has to be 'raw'
if format is 'image' -> force 2.0 'image' format, ignore everything else (unsupported in 2.0)
flavor translates straight to 2.0 format (unless forced to 'raw'/'image')
*/
_qz.log.trace("Converting print data to v2.0 for " + _qz.websocket.connection.version);
for(var i = 0; i < printData.length; i++) {
if (printData[i].constructor === Object) {
if (printData[i].type && printData[i].type.toUpperCase() === "RAW" && printData[i].format && printData[i].format.toUpperCase() === "IMAGE") {
if (printData[i].flavor && printData[i].flavor.toUpperCase() === "BASE64") {
//special case for raw base64 images
printData[i].data = "data:image/compat;base64," + printData[i].data;
}
printData[i].flavor = "IMAGE"; //forces 'image' format when shifting for conversion
}
if ((printData[i].type && printData[i].type.toUpperCase() === "RAW") || (printData[i].format && printData[i].format.toUpperCase() === "COMMAND")) {
printData[i].format = "RAW"; //forces 'raw' type when shifting for conversion
}
printData[i].type = printData[i].format;
printData[i].format = printData[i].flavor;
delete printData[i].flavor;
}
}
}
},
/* Converts config defaults to match previous version */
config: function(config, dirty) {
if (_qz.tools.isVersion(2, 0)) {
if (!dirty.rasterize) {
config.rasterize = true;
}
}
if(_qz.tools.versionCompare(2, 2) < 0) {
if(config.forceRaw !== 'undefined') {
config.altPrinting = config.forceRaw;
delete config.forceRaw;
}
}
if(_qz.tools.versionCompare(2, 1, 2, 11) < 0) {
if(config.spool) {
if(config.spool.size) {
config.perSpool = config.spool.size;
delete config.spool.size;
}
if(config.spool.end) {
config.endOfDoc = config.spool.end;
delete config.spool.end;
}
delete config.spool;
}
}
return config;
},
/** Compat wrapper with previous version **/
networking: function(hostname, port, signature, signingTimestamp, mappingCallback) {
// Use 2.0
if (_qz.tools.isVersion(2, 0)) {
return _qz.tools.promise(function(resolve, reject) {
_qz.websocket.dataPromise('websocket.getNetworkInfo', {
hostname: hostname,
port: port
}, signature, signingTimestamp).then(function(data) {
if (typeof mappingCallback !== 'undefined') {
resolve(mappingCallback(data));
} else {
resolve(data);
}
}, reject);
});
}
// Wrap 2.1
return _qz.tools.promise(function(resolve, reject) {
_qz.websocket.dataPromise('networking.device', {
hostname: hostname,
port: port
}, signature, signingTimestamp).then(function(data) {
resolve({ ipAddress: data.ip, macAddress: data.mac });
}, reject);
});
},
/** Check if QZ version supports chosen algorithm */
algorithm: function(quiet) {
//if not connected yet we will assume compatibility exists for the time being
if (_qz.tools.isActive()) {
if (_qz.tools.isVersion(2, 0)) {
if (!quiet) {
_qz.log.warn("Connected to an older version of QZ, alternate signature algorithms are not supported");
}
return false;
}
}
return true;
}
},
/**
* Adapted from Chris Veness's code under MIT Licence (C) 2002
* see http://www.movable-type.co.uk/scripts/sha256.html
*/
SHA: {
//@formatter:off - keep this block compact
hash: function(msg) {
// add trailing '1' bit (+ 0's padding) to string [§5.1.1]
msg = msg.utf8Encode() + String.fromCharCode(0x80);
// constants [§4.2.2]
var K = [
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
];
// initial hash value [§5.3.1]
var H = [ 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 ];
// convert string msg into 512-bit/16-integer blocks arrays of ints [§5.2.1]
var l = msg.length / 4 + 2; // length (in 32-bit integers) of msg + ‘1’ + appended length
var N = Math.ceil(l / 16); // number of 16-integer-blocks required to hold 'l' ints
var M = new Array(N);
for(var i = 0; i < N; i++) {
M[i] = new Array(16);
for(var j = 0; j < 16; j++) { // encode 4 chars per integer, big-endian encoding
M[i][j] = (msg.charCodeAt(i * 64 + j * 4) << 24) | (msg.charCodeAt(i * 64 + j * 4 + 1) << 16) |
(msg.charCodeAt(i * 64 + j * 4 + 2) << 8) | (msg.charCodeAt(i * 64 + j * 4 + 3));
} // note running off the end of msg is ok 'cos bitwise ops on NaN return 0
}
// add length (in bits) into final pair of 32-bit integers (big-endian) [§5.1.1]
// note: most significant word would be (len-1)*8 >>> 32, but since JS converts
// bitwise-op args to 32 bits, we need to simulate this by arithmetic operators
M[N-1][14] = ((msg.length - 1) * 8) / Math.pow(2, 32);
M[N-1][14] = Math.floor(M[N-1][14]);
M[N-1][15] = ((msg.length - 1) * 8) & 0xffffffff;
// HASH COMPUTATION [§6.1.2]
var W = new Array(64); var a, b, c, d, e, f, g, h;
for(var i = 0; i < N; i++) {
// 1 - prepare message schedule 'W'
for(var t = 0; t < 16; t++) { W[t] = M[i][t]; }
for(var t = 16; t < 64; t++) { W[t] = (_qz.SHA._dev1(W[t-2]) + W[t-7] + _qz.SHA._dev0(W[t-15]) + W[t-16]) & 0xffffffff; }
// 2 - initialise working variables a, b, c, d, e, f, g, h with previous hash value
a = H[0]; b = H[1]; c = H[2]; d = H[3]; e = H[4]; f = H[5]; g = H[6]; h = H[7];
// 3 - main loop (note 'addition modulo 2^32')
for(var t = 0; t < 64; t++) {
var T1 = h + _qz.SHA._sig1(e) + _qz.SHA._ch(e, f, g) + K[t] + W[t];
var T2 = _qz.SHA._sig0(a) + _qz.SHA._maj(a, b, c);
h = g; g = f; f = e; e = (d + T1) & 0xffffffff;
d = c; c = b; b = a; a = (T1 + T2) & 0xffffffff;
}
// 4 - compute the new intermediate hash value (note 'addition modulo 2^32')
H[0] = (H[0]+a) & 0xffffffff; H[1] = (H[1]+b) & 0xffffffff; H[2] = (H[2]+c) & 0xffffffff; H[3] = (H[3]+d) & 0xffffffff;
H[4] = (H[4]+e) & 0xffffffff; H[5] = (H[5]+f) & 0xffffffff; H[6] = (H[6]+g) & 0xffffffff; H[7] = (H[7]+h) & 0xffffffff;
}
return _qz.SHA._hexStr(H[0]) + _qz.SHA._hexStr(H[1]) + _qz.SHA._hexStr(H[2]) + _qz.SHA._hexStr(H[3]) +
_qz.SHA._hexStr(H[4]) + _qz.SHA._hexStr(H[5]) + _qz.SHA._hexStr(H[6]) + _qz.SHA._hexStr(H[7]);
},
// Rotates right (circular right shift) value x by n positions
_rotr: function(n, x) { return (x >>> n) | (x << (32 - n)); },
// logical functions
_sig0: function(x) { return _qz.SHA._rotr(2, x) ^ _qz.SHA._rotr(13, x) ^ _qz.SHA._rotr(22, x); },
_sig1: function(x) { return _qz.SHA._rotr(6, x) ^ _qz.SHA._rotr(11, x) ^ _qz.SHA._rotr(25, x); },
_dev0: function(x) { return _qz.SHA._rotr(7, x) ^ _qz.SHA._rotr(18, x) ^ (x >>> 3); },
_dev1: function(x) { return _qz.SHA._rotr(17, x) ^ _qz.SHA._rotr(19, x) ^ (x >>> 10); },
_ch: function(x, y, z) { return (x & y) ^ (~x & z); },
_maj: function(x, y, z) { return (x & y) ^ (x & z) ^ (y & z); },
// note can't use toString(16) as it is implementation-dependant, and in IE returns signed numbers when used on full words
_hexStr: function(n) { var s = "", v; for(var i = 7; i >= 0; i--) { v = (n >>> (i * 4)) & 0xf; s += v.toString(16); } return s; },
//@formatter:on
},
};
///// CONFIG CLASS ////
/** Object to handle configured printer options. */
function Config(printer, opts) {
this.config = _qz.tools.extend({}, _qz.printing.defaultConfig); //create a copy of the default options
this._dirtyOpts = {}; //track which config options have changed from the defaults
/**
* Set the printer assigned to this config.
* @param {string|Object} newPrinter Name of printer. Use object type to specify printing to file or host.
* @param {string} [newPrinter.name] Name of printer to send printing.
* @param {string} [newPrinter.file] DEPRECATED: Name of file to send printing.
* @param {string} [newPrinter.host] IP address or host name to send printing.
* @param {string} [newPrinter.port] Port used by <printer.host>.
*/
this.setPrinter = function(newPrinter) {
if (typeof newPrinter === 'string') {
newPrinter = { name: newPrinter };
}
if(newPrinter && newPrinter.file) {
// TODO: Warn for UNC paths too https://github.com/qzind/tray/issues/730
if(newPrinter.file.indexOf("\\\\") != 0) {
_qz.log.warn("Printing to file is deprecated. See https://github.com/qzind/tray/issues/730");
}
}
this.printer = newPrinter;
};
/**
* @returns {Object} The printer currently assigned to this config.
*/
this.getPrinter = function() {
return this.printer;
};
/**
* Alter any of the printer options currently applied to this config.
* @param newOpts {Object} The options to change. See <code>qz.configs.setDefaults</code> docs for available values.
*
* @see qz.configs.setDefaults
*/
this.reconfigure = function(newOpts) {
for(var key in newOpts) {
if (newOpts[key] !== undefined) {
this._dirtyOpts[key] = true;
}
}
_qz.tools.extend(this.config, newOpts);
};
/**
* @returns {Object} The currently applied options on this config.
*/
this.getOptions = function() {
return _qz.compatible.config(this.config, this._dirtyOpts);
};
// init calls for new config object
this.setPrinter(printer);
this.reconfigure(opts);
}
/**
* Shortcut method for calling <code>qz.print</code> with a particular config.
* @param {Array<Object|string>} data Array of data being sent to the printer. See <code>qz.print</code> docs for available values.
* @param {boolean} [signature] Pre-signed signature of JSON string containing <code>call</code>, <code>params</code>, and <code>timestamp</code>.
* @param {number} [signingTimestamp] Required with <code>signature</code>. Timestamp used with pre-signed content.
*
* @example
* qz.print(myConfig, ...); // OR
* myConfig.print(...);
*
* @see qz.print
*/
Config.prototype.print = function(data, signature, signingTimestamp) {
qz.print(this, data, signature, signingTimestamp);
};
///// PUBLIC METHODS /////
/** @namespace qz */
var qz = {
/**
* Calls related specifically to the web socket connection.
* @namespace qz.websocket
*/
websocket: {
/**
* Check connection status. Active connection is necessary for other calls to run.
*
* @returns {boolean} If there is an active connection with QZ Tray.
*
* @see connect
*
* @memberof qz.websocket
*/
isActive: function() {
return _qz.tools.isActive();
},
/**
* Call to setup connection with QZ Tray on user's system.
*
* @param {Object} [options] Configuration options for the web socket connection.
* @param {string|Array<string>} [options.host=['localhost', 'localhost.qz.io']] Host running the QZ Tray software.
* @param {Object} [options.port] Config options for ports to cycle.
* @param {Array<number>} [options.port.secure=[8181, 8282, 8383, 8484]] Array of secure (WSS) ports to try
* @param {Array<number>} [options.port.insecure=[8182, 8283, 8384, 8485]] Array of insecure (WS) ports to try
* @param {boolean} [options.usingSecure=true] If the web socket should try to use secure ports for connecting.
* @param {number} [options.keepAlive=60] Seconds between keep-alive pings to keep connection open. Set to 0 to disable.
* @param {number} [options.retries=0] Number of times to reconnect before failing.
* @param {number} [options.delay=0] Seconds before firing a connection. Ignored if <code>options.retries</code> is 0.
*
* @returns {Promise<null|Error>}
*
* @memberof qz.websocket
*/
connect: function(options) {
return _qz.tools.promise(function(resolve, reject) {
if (_qz.tools.isActive()) {
reject(new Error("An open connection with QZ Tray already exists"));
return;
} else if (_qz.websocket.connection != null) {
reject(new Error("The current connection attempt has not returned yet"));
return;
}
if (!_qz.tools.ws) {
reject(new Error("WebSocket not supported by this browser"));
return;
} else if (!_qz.tools.ws.CLOSED || _qz.tools.ws.CLOSED == 2) {
reject(new Error("Unsupported WebSocket version detected: HyBi-00/Hixie-76"));
return;
}
//ensure some form of options exists for value checks
if (options == undefined) { options = {}; }
//disable secure ports if page is not secure
if (typeof location === 'undefined' || location.protocol !== 'https:') {
//respect forcing secure ports if it is defined, otherwise disable
if (typeof options.usingSecure === 'undefined') {
_qz.log.trace("Disabling secure ports due to insecure page");
options.usingSecure = false;
}
}
//ensure any hosts are passed to internals as an array
if (typeof options.host !== 'undefined' && !Array.isArray(options.host)) {
options.host = [options.host];
}
var attempt = function(count) {
var tried = false;
var nextAttempt = function() {
if (!tried) {
tried = true;
if (options && count < options.retries) {
attempt(count + 1);
} else {
_qz.websocket.connection = null;
reject.apply(null, arguments);
}
}
};
var delayed = function() {
var config = _qz.tools.extend({}, _qz.websocket.connectConfig, options);
_qz.websocket.setup.findConnection(config, resolve, nextAttempt)
};
if (count == 0) {
delayed(); // only retries will be called with a delay
} else {
setTimeout(delayed, options.delay * 1000);
}
};
attempt(0);
});
},
/**
* Stop any active connection with QZ Tray.
*
* @returns {Promise<null|Error>}
*
* @memberof qz.websocket
*/
disconnect: function() {
return _qz.tools.promise(function(resolve, reject) {
if (_qz.tools.isActive()) {
_qz.websocket.connection.close();
_qz.websocket.connection.promise = { resolve: resolve, reject: reject };
} else {
reject(new Error("No open connection with QZ Tray"))
}
});
},
/**
* List of functions called for any connections errors outside of an API call.<p/>
* Also called if {@link websocket#connect} fails to connect.
*
* @param {Function|Array<Function>} calls Single or array of <code>Function({Event} event)</code> calls.
*
* @memberof qz.websocket
*/
setErrorCallbacks: function(calls) {
_qz.websocket.errorCallbacks = calls;
},
/**
* List of functions called for any connection closing event outside of an API call.<p/>
* Also called when {@link websocket#disconnect} is called.
*
* @param {Function|Array<Function>} calls Single or array of <code>Function({Event} event)</code> calls.
*
* @memberof qz.websocket
*/
setClosedCallbacks: function(calls) {
_qz.websocket.closedCallbacks = calls;
},
/**
* @deprecated Since 2.1.0. Please use qz.networking.device() instead
*
* @param {string} [hostname] Hostname to try to connect to when determining network interfaces, defaults to "google.com"
* @param {number} [port] Port to use with custom hostname, defaults to 443
* @param {string} [signature] Pre-signed signature of hashed JSON string containing <code>call='websocket.getNetworkInfo'</code>, <code>params</code> object, and <code>timestamp</code>.
* @param {number} [signingTimestamp] Required with <code>signature</code>. Timestamp used with pre-signed content.
*
* @returns {Promise<Object<{ipAddress: string, macAddress: string}>|Error>} Connected system's network information.
*
* @memberof qz.websocket
*/
getNetworkInfo: _qz.compatible.networking,
/**
* @returns {Object<{socket: String, host: String, port: Number}>} Details of active websocket connection
*
* @memberof qz.websocket
*/
getConnectionInfo: function() {
if (_qz.tools.assertActive()) {
var url = _qz.websocket.connection.url.split(/[:\/]+/g);
return { socket: url[0], host: url[1], port: +url[2] };
}
}
},
/**
* Calls related to getting printer information from the connection.
* @namespace qz.printers
*/
printers: {
/**
* @param {string} [signature] Pre-signed signature of hashed JSON string containing <code>call='printers.getDefault</code>, <code>params</code>, and <code>timestamp</code>.
* @param {number} [signingTimestamp] Required with <code>signature</code>. Timestamp used with pre-signed content.
*
* @returns {Promise<string|Error>} Name of the connected system's default printer.
*
* @memberof qz.printers
*/
getDefault: function(signature, signingTimestamp) {
return _qz.websocket.dataPromise('printers.getDefault', null, signature, signingTimestamp);
},
/**
* @param {string} [query] Search for a specific printer. All printers are returned if not provided.
* @param {string} [signature] Pre-signed signature of hashed JSON string containing <code>call='printers.find'</code>, <code>params</code>, and <code>timestamp</code>.
* @param {number} [signingTimestamp] Required with <code>signature</code>. Timestamp used with pre-signed content.
*
* @returns {Promise<Array<string>|string|Error>} The matched printer name if <code>query</code> is provided.
* Otherwise an array of printer names found on the connected system.
*
* @memberof qz.printers
*/
find: function(query, signature, signingTimestamp) {
return _qz.websocket.dataPromise('printers.find', { query: query }, signature, signingTimestamp);
},
/**
* Provides a list, with additional information, for each printer available to QZ.
*
* @returns {Promise<Array<Object>|Object|Error>}
*
* @memberof qz.printers
*/
details: function() {
return _qz.websocket.dataPromise('printers.detail');
},
/**
* Start listening for printer status events, such as paper_jam events.
* Reported under the ACTION type in the streamEvent on callbacks.
*
* @returns {Promise<null|Error>}
* @since 2.1.0
*
* @see qz.printers.setPrinterCallbacks
*
* @param {null|string|Array<string>} printers Printer or list of printers to listen to, null listens to all.
* @param {Object|null} [options] Printer listener options
* @param {null|boolean} [options.jobData=false] Flag indicating if raw spool file content should be return as well as status information (Windows only)
* @param {null|number} [options.maxJobData=-1] Maximum number of bytes to returns for raw spooled file content (Windows only)
* @param {null|string} [options.flavor="plain"] Flavor of data format returned. Valid flavors are <code>[base64 | hex | plain*]</code> (Windows only)
*
* @memberof qz.printers
*/
startListening: function(printers, options) {
if (!Array.isArray(printers)) {
printers = [printers];
}
var params = {
printerNames: printers
};
if (options && options.jobData == true) params.jobData = true;
if (options && options.maxJobData) params.maxJobData = options.maxJobData;
if (options && options.flavor) params.flavor = options.flavor;
return _qz.websocket.dataPromise('printers.startListening', params);
},
/**
* Stop listening for printer status actions.
*
* @returns {Promise<null|Error>}
* @since 2.1.0
*
* @see qz.printers.setPrinterCallbacks
*
* @memberof qz.printers
*/
stopListening: function() {
return _qz.websocket.dataPromise('printers.stopListening');
},
/**
* Retrieve current printer status from any active listeners.
*
* @returns {Promise<null|Error>}
* @since 2.1.0
*
* @see qz.printers.startListening
*
* @memberof qz.printers
*/
getStatus: function() {
return _qz.websocket.dataPromise('printers.getStatus');
},
/**
* List of functions called for any printer status change.
* Event data will contain <code>{string} printerName</code> and <code>{string} status</code> for all types.
* For RECEIVE types, <code>{Array} output</code> (in hexadecimal format).
* For ERROR types, <code>{string} exception</code>.
* For ACTION types, <code>{string} actionType</code>.
*
* @param {Function|Array<Function>} calls Single or array of <code>Function({Object} eventData)</code> calls.
* @since 2.1.0
*
* @memberof qz.printers
*/
setPrinterCallbacks: function(calls) {
_qz.printers.printerCallbacks = calls;
}
},
/**
* Calls related to setting up new printer configurations.
* @namespace qz.configs
*/
configs: {
/**
* Default options used by new configs if not overridden.
* Setting a value to NULL will use the printer's default options.
* Updating these will not update the options on any created config.
*
* @param {Object} options Default options used by printer configs if not overridden.
*
* @param {Object} [options.bounds=null] Bounding box rectangle.
* @param {number} [options.bounds.x=0] Distance from left for bounding box starting corner
* @param {number} [options.bounds.y=0] Distance from top for bounding box starting corner
* @param {number} [options.bounds.width=0] Width of bounding box
* @param {number} [options.bounds.height=0] Height of bounding box
* @param {string} [options.colorType='color'] Valid values <code>[color | grayscale | blackwhite]</code>
* @param {number} [options.copies=1] Number of copies to be printed.
* @param {number|Array<number>|Object|Array<Object>|string} [options.density=0] Pixel density (DPI, DPMM, or DPCM depending on <code>[options.units]</code>).
* If provided as an array, uses the first supported density found (or the first entry if none found).
* If provided as a string, valid values are <code>[best | draft]</code>, corresponding to highest or lowest reported density respectively.
* @param {number} [options.density.cross=0] Asymmetric pixel density for the cross feed direction.
* @param {number} [options.density.feed=0] Asymmetric pixel density for the feed direction.
* @param {boolean|string} [options.duplex=false] Double sided printing, Can specify duplex style by passing a string value: <code>[one-sided | duplex | long-edge | tumble | short-edge]</code>
* @param {number} [options.fallbackDensity=null] Value used when default density value cannot be read, or in cases where reported as "Normal" by the driver, (in DPI, DPMM, or DPCM depending on <code>[options.units]</code>).
* @param {string} [options.interpolation='bicubic'] Valid values <code>[bicubic | bilinear | nearest-neighbor]</code>. Controls how images are handled when resized.
* @param {string} [options.jobName=null] Name to display in print queue.
* @param {boolean} [options.legacy=false] If legacy style printing should be used.
* @param {Object|number} [options.margins=0] If just a number is provided, it is used as the margin for all sides.
* @param {number} [options.margins.top=0]
* @param {number} [options.margins.right=0]
* @param {number} [options.margins.bottom=0]
* @param {number} [options.margins.left=0]
* @param {string} [options.orientation=null] Valid values <code>[portrait | landscape | reverse-landscape | null]</code>.
* If set to <code>null</code>, orientation will be determined automatically.
* @param {number} [options.paperThickness=null]
* @param {string|number} [options.printerTray=null] Printer tray to pull from. The number N assumes string equivalent of 'Tray N'. Uses printer default if NULL.
* @param {boolean} [options.rasterize=false] Whether documents should be rasterized before printing.
* Specifying <code>[options.density]</code> for PDF print formats will set this to <code>true</code>.
* @param {number} [options.rotation=0] Image rotation in degrees.
* @param {boolean} [options.scaleContent=true] Scales print content to page size, keeping ratio.
* @param {Object} [options.size=null] Paper size.
* @param {number} [options.size.width=null] Page width.
* @param {number} [options.size.height=null] Page height.
* @param {string} [options.units='in'] Page units, applies to paper size, margins, and density. Valid value <code>[in | cm | mm]</code>
*
* @param {boolean} [options.forceRaw=false] Print the specified raw data using direct method, skipping the driver. Not yet supported on Windows.
* @param {string|Object} [options.encoding=null] Character set for commands. Can be provided as an object for converting encoding types for RAW types.
* @param {string} [options.encoding.from] If this encoding type is provided, RAW type commands will be parsed from this for the purpose of being converted to the <code>encoding.to</code> value.
* @param {string} [options.encoding.to] Encoding RAW type commands will be converted into. If <Code>encoding.from</code> is not provided, this will be treated as if a string was passed for encoding.
* @param {string} [options.endOfDoc=null] DEPRECATED Raw only: Character(s) denoting end of a page to control spooling.
* @param {number} [options.perSpool=1] DEPRECATED: Raw only: Number of pages per spool.
* @param {boolean} [options.retainTemp=false] Retain any temporary files used. Ignored unless <code>forceRaw</code> <code>true</code>.
* @param {Object} [options.spool=null] Advanced spooling options.
* @param {number} [options.spool.size=null] Number of pages per spool. Default is no limit. If <code>spool.end</code> is provided, defaults to <code>1</code>
* @param {string} [options.spool.end=null] Raw only: Character(s) denoting end of a page to control spooling.
*
* @memberof qz.configs
*/
setDefaults: function(options) {
_qz.tools.extend(_qz.printing.defaultConfig, options);
},
/**
* Creates new printer config to be used in printing.
*
* @param {string|object} printer Name of printer. Use object type to specify printing to file or host.
* @param {string} [printer.name] Name of printer to send printing.
* @param {string} [printer.file] Name of file to send printing.
* @param {string} [printer.host] IP address or host name to send printing.
* @param {string} [printer.port] Port used by <printer.host>.
* @param {Object} [options] Override any of the default options for this config only.
*
* @returns {Config} The new config.
*
* @see configs.setDefaults
*
* @memberof qz.configs
*/
create: function(printer, options) {
return new Config(printer, options);
}
},
/**
* Send data to selected config for printing.
* The promise for this method will resolve when the document has been sent to the printer. Actual printing may not be complete.
* <p/>
* Optionally, print requests can be pre-signed:
* Signed content consists of a JSON object string containing no spacing,
* following the format of the "call" and "params" keys in the API call, with the addition of a "timestamp" key in milliseconds
* ex. <code>'{"call":"<callName>","params":{...},"timestamp":1450000000}'</code>
*
* @param {Object<Config>|Array<Object<Config>>} configs Previously created config object or objects.
* @param {Array<Object|string>|Array<Array<Object|string>>} data Array of data being sent to the printer.<br/>
* String values are interpreted as <code>{type: 'raw', format: 'command', flavor: 'plain', data: <string>}</code>.
* @param {string} data.data
* @param {string} data.type Printing type. Valid types are <code>[pixel | raw*]</code>. *Default
* @param {string} data.format Format of data type used. *Default per type<p/>
* For <code>[pixel]</code> types, valid formats are <code>[html | image* | pdf]</code>.<p/>
* For <code>[raw]</code> types, valid formats are <code>[command* | html | image | pdf]</code>.
* @param {string} data.flavor Flavor of data format used. *Default per format<p/>
* For <code>[command]</code> formats, valid flavors are <code>[base64 | file | hex | plain* | xml]</code>.<p/>
* For <code>[html]</code> formats, valid flavors are <code>[file* | plain]</code>.<p/>
* For <code>[image]</code> formats, valid flavors are <code>[base64 | file*]</code>.<p/>
* For <code>[pdf]</code> formats, valid flavors are <code>[base64 | file*]</code>.
* @param {Object} [data.options]
* @param {string} [data.options.language] Required with <code>[raw]</code> type + <code>[image]</code> format. Printer language.
* @param {number} [data.options.x] Optional with <code>[raw]</code> type + <code>[image]</code> format. The X position of the image.
* @param {number} [data.options.y] Optional with <code>[raw]</code> type + <code>[image]</code> format. The Y position of the image.
* @param {string|number} [data.options.dotDensity] Optional with <code>[raw]</code> type + <code>[image]</code> format.
* @param {number} [data.precision=128] Optional with <code>[raw]</code> type <code>[image]</code> format. Bit precision of the ribbons.
* @param {boolean|string|Array<Array<number>>} [data.options.overlay=false] Optional with <code>[raw]</code> type <code>[image]</code> format.
* Boolean sets entire layer, string sets mask image, Array sets array of rectangles in format <code>[x1,y1,x2,y2]</code>.
* @param {string} [data.options.xmlTag] Required with <code>[xml]</code> flavor. Tag name containing base64 formatted data.
* @param {number} [data.options.pageWidth] Optional with <code>[html | pdf]</code> formats. Width of the rendering.
* Defaults to paper width.
* @param {number} [data.options.pageHeight] Optional with <code>[html | pdf]</code> formats. Height of the rendering.
* Defaults to paper height for <code>[pdf]</code>, or auto sized for <code>[html]</code>.
* @param {string} [data.options.pageRanges] Optional with <code>[pdf]</code> formats. Comma-separated list of page ranges to include.
* @param {boolean} [data.options.ignoreTransparency=false] Optional with <code>[pdf]</code> formats. Instructs transparent PDF elements to be ignored.
* Transparent PDF elements are known to degrade performance and quality when printing.
* @param {...*} [arguments] Additionally three more parameters can be specified:<p/>
* <code>{boolean} [resumeOnError=false]</code> Whether the chain should continue printing if it hits an error on one the the prints.<p/>
* <code>{string|Array<string>} [signature]</code> Pre-signed signature(s) of the JSON string for containing <code>call</code>, <code>params</code>, and <code>timestamp</code>.<p/>
* <code>{number|Array<number>} [signingTimestamps]</code> Required to match with <code>signature</code>. Timestamps for each of the passed pre-signed content.
*
* @returns {Promise<null|Error>}
*
* @see qz.configs.create
*
* @memberof qz
*/
print: function(configs, data) {
var resumeOnError = false,
signatures = [],
signaturesTimestamps = [];
//find optional parameters
if (arguments.length >= 3) {
if (typeof arguments[2] === 'boolean') {
resumeOnError = arguments[2];
if (arguments.length >= 5) {
signatures = arguments[3];
signaturesTimestamps = arguments[4];
}
} else if (arguments.length >= 4) {
signatures = arguments[2];
signaturesTimestamps = arguments[3];
}
//ensure values are arrays for consistency
if (signatures && !Array.isArray(signatures)) { signatures = [signatures]; }
if (signaturesTimestamps && !Array.isArray(signaturesTimestamps)) { signaturesTimestamps = [signaturesTimestamps]; }
}
if (!Array.isArray(configs)) { configs = [configs]; } //single config -> array of configs
if (!Array.isArray(data[0])) { data = [data]; } //single data array -> array of data arrays
//clean up data formatting
for(var d = 0; d < data.length; d++) {
_qz.tools.relative(data[d]);
_qz.compatible.data(data[d]);
}
var sendToPrint = function(mapping) {
var params = {
printer: mapping.config.getPrinter(),
options: mapping.config.getOptions(),
data: mapping.data
};
return _qz.websocket.dataPromise('print', params, mapping.signature, mapping.timestamp);
};
//chain instead of Promise.all, so resumeOnError can collect each error
var chain = [];
for(var i = 0; i < configs.length || i < data.length; i++) {
(function(i_) {
var map = {
config: configs[Math.min(i_, configs.length - 1)],
data: data[Math.min(i_, data.length - 1)],
signature: signatures[i_],
timestamp: signaturesTimestamps[i_]
};
chain.push(function() { return sendToPrint(map) });
})(i);
}
//setup to catch errors if needed
var fallThrough = null;
if (resumeOnError) {
var fallen = [];
fallThrough = function(err) { fallen.push(err); };
//final promise to reject any errors as a group
chain.push(function() {
return _qz.tools.promise(function(resolve, reject) {
fallen.length ? reject(fallen) : resolve();
});
});
}
var last = null;
chain.reduce(function(sequence, link) {
last = sequence.catch(fallThrough).then(link); //catch is ignored if fallThrough is null
return last;
}, _qz.tools.promise(function(r) { r(); })); //an immediately resolved promise to start off the chain
//return last promise so users can chain off final action or catch when stopping on error
return last;
},
/**
* Calls related to interaction with serial ports.
* @namespace qz.serial
*/
serial: {
/**
* @returns {Promise<Array<string>|Error>} Communication (RS232, COM, TTY) ports available on connected system.
*
* @memberof qz.serial
*/
findPorts: function() {
return _qz.websocket.dataPromise('serial.findPorts');
},
/**
* List of functions called for any response from open serial ports.
* Event data will contain <code>{string} portName</code> for all types.
* For RECEIVE types, <code>{string} output</code>.
* For ERROR types, <code>{string} exception</code>.
*
* @param {Function|Array<Function>} calls Single or array of <code>Function({object} streamEvent)</code> calls.
*
* @memberof qz.serial
*/
setSerialCallbacks: function(calls) {
_qz.serial.serialCallbacks = calls;
},
/**
* Opens a serial port for sending and receiving data
*
* @param {string} port Name of serial port to open.
* @param {Object} [options] Serial port configurations.
* @param {number} [options.baudRate=9600] Serial port speed. Set to 0 for auto negotiation.
* @param {number} [options.dataBits=8] Serial port data bits. Set to 0 for auto negotiation.
* @param {number} [options.stopBits=1] Serial port stop bits. Set to 0 for auto negotiation.
* @param {string} [options.parity='NONE'] Serial port parity. Set to AUTO for auto negotiation. Valid values <code>[NONE | EVEN | ODD | MARK | SPACE | AUTO]</code>
* @param {string} [options.flowControl='NONE'] Serial port flow control. Set to AUTO for auto negotiation. Valid values <code>[NONE | XONXOFF | XONXOFF_OUT | XONXOFF_IN | RTSCTS | RTSCTS_OUT | RTSCTS_IN | AUTO]</code>
* @param {string} [options.encoding='UTF-8'] Character set for communications.
* @param {string} [options.start=0x0002] DEPRECATED: Legacy character denoting start of serial response. Use <code>options.rx.start</code> instead.
* @param {string} [options.end=0x000D] DEPRECATED: Legacy character denoting end of serial response. Use <code>options.rx.end</code> instead.
* @param {number} [options.width] DEPRECATED: Legacy use for fixed-width response serial communication. Use <code>options.rx.width</code> instead.
* @param {Object} [options.rx] Serial communications response definitions. If an object is passed but no options are defined, all response data will be sent back as it is received unprocessed.
* @param {string|Array<string>} [options.rx.start] Character(s) denoting start of response bytes. Used in conjunction with `end`, `width`, or `lengthbit` property.
* @param {string} [options.rx.end] Character denoting end of response bytes. Used in conjunction with `start` property.
* @param {number} [options.rx.width] Fixed width size of response bytes (not including header if `start` is set). Used alone or in conjunction with `start` property.
* @param {boolean} [options.rx.untilNewline] Returns data between newline characters (`\n` or `\r`) Truncates empty responses. Overrides `start`, `end`, `width`.
* @param {number|Object} [options.rx.lengthBytes] If a number is passed it is treated as the length index. Other values are left as their defaults.
* @param {number} [options.rx.lengthBytes.index=0] Position of the response byte (not including response `start` bytes) used to denote the length of the remaining response data.
* @param {number} [options.rx.lengthBytes.length=1] Length of response length bytes after response header.
* @param {string} [options.rx.lengthBytes.endian='BIG'] Byte endian for multi-byte length values. Valid values <code>[BIG | LITTLE]</code>
* @param {number|Object} [options.rx.crcBytes] If a number is passed it is treated as the crc length. Other values are left as their defaults.
* @param {number} [options.rx.crcBytes.index=0] Position after the response data (not including length or data bytes) used to denote the crc.
* @param {number} [options.rx.crcBytes.length=1] Length of response crc bytes after the response data length.
* @param {boolean} [options.rx.includeHeader=false] Whether any of the header bytes (`start` bytes and any length bytes) should be included in the processed response.
* @param {string} [options.rx.encoding] Override the encoding used for response data. Uses the same value as <code>options.encoding</code> otherwise.
*
* @returns {Promise<null|Error>}
*
* @memberof qz.serial
*/
openPort: function(port, options) {
var params = {
port: port,
options: options
};
return _qz.websocket.dataPromise('serial.openPort', params);
},
/**
* Send commands over a serial port.
* Any responses from the device will be sent to serial callback functions.
*
* @param {string} port An open serial port to send data.
* @param {string|Array<string>|Object} data Data to be sent to the serial device.
* @param {string} [data.type='PLAIN'] Valid values <code>[FILE | PLAIN | HEX | BASE64]</code>
* @param {string|Array<string>} data.data Data to be sent to the serial device.
* @param {Object} options Serial port configuration updates. See <code>qz.serial.openPort</code> `options` docs for available values.
* For best performance, it is recommended to only set these values on the port open call.
*
* @returns {Promise<null|Error>}
*
* @see qz.serial.setSerialCallbacks
*
* @memberof qz.serial
*/
sendData: function(port, data, options) {
if (_qz.tools.versionCompare(2, 1, 0, 12) >= 0) {
if (typeof data !== 'object') {
data = {
data: data,
type: "PLAIN"
}
}
if (data.type && data.type.toUpperCase() == "FILE") {
data.data = _qz.tools.absolute(data.data);
}
}
var params = {
port: port,
data: data,
options: options
};
return _qz.websocket.dataPromise('serial.sendData', params);
},
/**
* @param {string} port Name of port to close.
*
* @returns {Promise<null|Error>}
*
* @memberof qz.serial
*/
closePort: function(port) {
return _qz.websocket.dataPromise('serial.closePort', { port: port });
}
},
/**
* Calls related to interaction with communication sockets.
* @namespace qz.socket
*/
socket: {
/**
* Opens a network port for sending and receiving data.
*
* @param {string} host The connection hostname.
* @param {number} port The connection port number.
* @param {Object} [options] Network socket configuration.
* @param {string} [options.encoding='UTF-8'] Character set for communications.
*
* @memberof qz.socket
*/
open: function(host, port, options) {
var params = {
host: host,
port: port,
options: options
};
return _qz.websocket.dataPromise("socket.open", params);
},
/**
* @param {string} host The connection hostname.
* @param {number} port The connection port number.
*
* @memberof qz.socket
*/
close: function(host, port) {
var params = {
host: host,
port: port
};
return _qz.websocket.dataPromise("socket.close", params);
},
/**
* Send data over an open socket.
*
* @param {string} host The connection hostname.
* @param {number} port The connection port number.
* @param {string|Object} data Data to be sent over the port.
* @param {string} [data.type='PLAIN'] Valid values <code>[PLAIN]</code>
* @param {string} data.data Data to be sent over the port.
*
* @memberof qz.socket
*/
sendData: function(host, port, data) {
if (typeof data !== 'object') {
data = {
data: data,
type: "PLAIN"
};
}
var params = {
host: host,
port: port,
data: data
};
return _qz.websocket.dataPromise("socket.sendData", params);
},
/**
* List of functions called for any response from open network sockets.
* Event data will contain <code>{string} host</code> and <code>{number} port</code> for all types.
* For RECEIVE types, <code>{string} response</code>.
* For ERROR types, <code>{string} exception</code>.
*
* @param {Function|Array<Function>} calls Single or array of <code>Function({Object} eventData)</code> calls.
*
* @memberof qz.socket
*/
setSocketCallbacks: function(calls) {
_qz.socket.socketCallbacks = calls;
}
},
/**
* Calls related to interaction with USB devices.
* @namespace qz.usb
*/
usb: {
/**
* List of available USB devices. Includes (hexadecimal) vendor ID, (hexadecimal) product ID, and hub status.
* If supported, also returns manufacturer and product descriptions.
*
* @param includeHubs Whether to include USB hubs.
* @returns {Promise<Array<Object>|Error>} Array of JSON objects containing information on connected USB devices.
*
* @memberof qz.usb
*/
listDevices: function(includeHubs) {
return _qz.websocket.dataPromise('usb.listDevices', { includeHubs: includeHubs });
},
/**
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of USB device's vendor ID.
* @param deviceInfo.productId Hex string of USB device's product ID.
* @returns {Promise<Array<string>|Error>} List of available (hexadecimal) interfaces on a USB device.
*
* @memberof qz.usb
*/
listInterfaces: function(deviceInfo) {
if (typeof deviceInfo !== 'object') { deviceInfo = { vendorId: arguments[0], productId: arguments[1] }; } //backwards compatibility
return _qz.websocket.dataPromise('usb.listInterfaces', deviceInfo);
},
/**
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of USB device's vendor ID.
* @param deviceInfo.productId Hex string of USB device's product ID.
* @param deviceInfo.iface Hex string of interface on the USB device to search.
* @returns {Promise<Array<string>|Error>} List of available (hexadecimal) endpoints on a USB device's interface.
*
* @memberof qz.usb
*/
listEndpoints: function(deviceInfo) {
//backwards compatibility
if (typeof deviceInfo !== 'object') {
deviceInfo = {
vendorId: arguments[0],
productId: arguments[1],
interface: arguments[2]
};
}
return _qz.websocket.dataPromise('usb.listEndpoints', deviceInfo);
},
/**
* List of functions called for any response from open usb devices.
* Event data will contain <code>{string} vendorId</code> and <code>{string} productId</code> for all types.
* For RECEIVE types, <code>{Array} output</code> (in hexadecimal format).
* For ERROR types, <code>{string} exception</code>.
*
* @param {Function|Array<Function>} calls Single or array of <code>Function({Object} eventData)</code> calls.
*
* @memberof qz.usb
*/
setUsbCallbacks: function(calls) {
_qz.usb.usbCallbacks = calls;
},
/**
* Claim a USB device's interface to enable sending/reading data across an endpoint.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of USB device's vendor ID.
* @param deviceInfo.productId Hex string of USB device's product ID.
* @param deviceInfo.interface Hex string of interface on the USB device to claim.
* @returns {Promise<null|Error>}
*
* @memberof qz.usb
*/
claimDevice: function(deviceInfo) {
//backwards compatibility
if (typeof deviceInfo !== 'object') {
deviceInfo = {
vendorId: arguments[0],
productId: arguments[1],
interface: arguments[2]
};
}
return _qz.websocket.dataPromise('usb.claimDevice', deviceInfo);
},
/**
* Check the current claim state of a USB device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of USB device's vendor ID.
* @param deviceInfo.productId Hex string of USB device's product ID.
* @returns {Promise<boolean|Error>}
*
* @since 2.0.2
* @memberOf qz.usb
*/
isClaimed: function(deviceInfo) {
if (typeof deviceInfo !== 'object') { deviceInfo = { vendorId: arguments[0], productId: arguments[1] }; } //backwards compatibility
return _qz.websocket.dataPromise('usb.isClaimed', deviceInfo);
},
/**
* Send data to a claimed USB device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of USB device's vendor ID.
* @param deviceInfo.productId Hex string of USB device's product ID.
* @param deviceInfo.endpoint Hex string of endpoint on the claimed interface for the USB device.
* @param deviceInfo.data Bytes to send over specified endpoint.
* @param {string} [deviceInfo.type='PLAIN'] Valid values <code>[FILE | PLAIN | HEX | BASE64]</code>
* @returns {Promise<null|Error>}
*
* @memberof qz.usb
*/
sendData: function(deviceInfo) {
//backwards compatibility
if (typeof deviceInfo !== 'object') {
deviceInfo = {
vendorId: arguments[0],
productId: arguments[1],
endpoint: arguments[2],
data: arguments[3]
};
}
if (_qz.tools.versionCompare(2, 1, 0, 12) >= 0) {
if (typeof deviceInfo.data !== 'object') {
deviceInfo.data = {
data: deviceInfo.data,
type: "PLAIN"
}
}
if (deviceInfo.data.type && deviceInfo.data.type.toUpperCase() == "FILE") {
deviceInfo.data.data = _qz.tools.absolute(deviceInfo.data.data);
}
}
return _qz.websocket.dataPromise('usb.sendData', deviceInfo);
},
/**
* Read data from a claimed USB device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of USB device's vendor ID.
* @param deviceInfo.productId Hex string of USB device's product ID.
* @param deviceInfo.endpoint Hex string of endpoint on the claimed interface for the USB device.
* @param deviceInfo.responseSize Size of the byte array to receive a response in.
* @returns {Promise<Array<string>|Error>} List of (hexadecimal) bytes received from the USB device.
*
* @memberof qz.usb
*/
readData: function(deviceInfo) {
//backwards compatibility
if (typeof deviceInfo !== 'object') {
deviceInfo = {
vendorId: arguments[0],
productId: arguments[1],
endpoint: arguments[2],
responseSize: arguments[3]
};
}
return _qz.websocket.dataPromise('usb.readData', deviceInfo);
},
/**
* Provides a continuous stream of read data from a claimed USB device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of USB device's vendor ID.
* @param deviceInfo.productId Hex string of USB device's product ID.
* @param deviceInfo.endpoint Hex string of endpoint on the claimed interface for the USB device.
* @param deviceInfo.responseSize Size of the byte array to receive a response in.
* @param deviceInfo.interval=100 Frequency to send read data back, in milliseconds.
* @returns {Promise<null|Error>}
*
* @see qz.usb.setUsbCallbacks
*
* @memberof qz.usb
*/
openStream: function(deviceInfo) {
//backwards compatibility
if (typeof deviceInfo !== 'object') {
deviceInfo = {
vendorId: arguments[0],
productId: arguments[1],
endpoint: arguments[2],
responseSize: arguments[3],
interval: arguments[4]
};
}
return _qz.websocket.dataPromise('usb.openStream', deviceInfo);
},
/**
* Stops the stream of read data from a claimed USB device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of USB device's vendor ID.
* @param deviceInfo.productId Hex string of USB device's product ID.
* @param deviceInfo.endpoint Hex string of endpoint on the claimed interface for the USB device.
* @returns {Promise<null|Error>}
*
* @memberof qz.usb
*/
closeStream: function(deviceInfo) {
//backwards compatibility
if (typeof deviceInfo !== 'object') {
deviceInfo = {
vendorId: arguments[0],
productId: arguments[1],
endpoint: arguments[2]
};
}
return _qz.websocket.dataPromise('usb.closeStream', deviceInfo);
},
/**
* Release a claimed USB device to free resources after sending/reading data.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of USB device's vendor ID.
* @param deviceInfo.productId Hex string of USB device's product ID.
* @returns {Promise<null|Error>}
*
* @memberof qz.usb
*/
releaseDevice: function(deviceInfo) {
if (typeof deviceInfo !== 'object') { deviceInfo = { vendorId: arguments[0], productId: arguments[1] }; } //backwards compatibility
return _qz.websocket.dataPromise('usb.releaseDevice', deviceInfo);
}
},
/**
* Calls related to interaction with HID USB devices<br/>
* Many of these calls can be accomplished from the <code>qz.usb</code> namespace,
* but HID allows for simpler interaction
* @namespace qz.hid
* @since 2.0.1
*/
hid: {
/**
* List of available HID devices. Includes (hexadecimal) vendor ID and (hexadecimal) product ID.
* If available, also returns manufacturer and product descriptions.
*
* @returns {Promise<Array<Object>|Error>} Array of JSON objects containing information on connected HID devices.
* @since 2.0.1
*
* @memberof qz.hid
*/
listDevices: function() {
return _qz.websocket.dataPromise('hid.listDevices');
},
/**
* Start listening for HID device actions, such as attach / detach events.
* Reported under the ACTION type in the streamEvent on callbacks.
*
* @returns {Promise<null|Error>}
* @since 2.0.1
*
* @see qz.hid.setHidCallbacks
*
* @memberof qz.hid
*/
startListening: function() {
return _qz.websocket.dataPromise('hid.startListening');
},
/**
* Stop listening for HID device actions.
*
* @returns {Promise<null|Error>}
* @since 2.0.1
*
* @see qz.hid.setHidCallbacks
*
* @memberof qz.hid
*/
stopListening: function() {
return _qz.websocket.dataPromise('hid.stopListening');
},
/**
* List of functions called for any response from open usb devices.
* Event data will contain <code>{string} vendorId</code> and <code>{string} productId</code> for all types.
* For RECEIVE types, <code>{Array} output</code> (in hexadecimal format).
* For ERROR types, <code>{string} exception</code>.
* For ACTION types, <code>{string} actionType</code>.
*
* @param {Function|Array<Function>} calls Single or array of <code>Function({Object} eventData)</code> calls.
* @since 2.0.1
*
* @memberof qz.hid
*/
setHidCallbacks: function(calls) {
_qz.hid.hidCallbacks = calls;
},
/**
* Claim a HID device to enable sending/reading data across.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of HID device's vendor ID.
* @param deviceInfo.productId Hex string of HID device's product ID.
* @param deviceInfo.usagePage Hex string of HID device's usage page when multiple are present.
* @param deviceInfo.serial Serial ID of HID device.
* @returns {Promise<null|Error>}
* @since 2.0.1
*
* @memberof qz.hid
*/
claimDevice: function(deviceInfo) {
if (typeof deviceInfo !== 'object') { deviceInfo = { vendorId: arguments[0], productId: arguments[1] }; } //backwards compatibility
return _qz.websocket.dataPromise('hid.claimDevice', deviceInfo);
},
/**
* Check the current claim state of a HID device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of HID device's vendor ID.
* @param deviceInfo.productId Hex string of HID device's product ID.
* @param deviceInfo.usagePage Hex string of HID device's usage page when multiple are present.
* @param deviceInfo.serial Serial ID of HID device.
* @returns {Promise<boolean|Error>}
*
* @since 2.0.2
* @memberOf qz.hid
*/
isClaimed: function(deviceInfo) {
if (typeof deviceInfo !== 'object') { deviceInfo = { vendorId: arguments[0], productId: arguments[1] }; } //backwards compatibility
return _qz.websocket.dataPromise('hid.isClaimed', deviceInfo);
},
/**
* Send data to a claimed HID device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of HID device's vendor ID.
* @param deviceInfo.productId Hex string of HID device's product ID.
* @param deviceInfo.usagePage Hex string of HID device's usage page when multiple are present.
* @param deviceInfo.serial Serial ID of HID device.
* @param deviceInfo.data Bytes to send over specified endpoint.
* @param deviceInfo.endpoint=0x00 First byte of the data packet signifying the HID report ID.
* Must be 0x00 for devices only supporting a single report.
* @param deviceInfo.reportId=0x00 Alias for <code>deviceInfo.endpoint</code>. Not used if endpoint is provided.
* @param {string} [deviceInfo.type='PLAIN'] Valid values <code>[FILE | PLAIN | HEX | BASE64]</code>
* @returns {Promise<null|Error>}
* @since 2.0.1
*
* @memberof qz.hid
*/
sendData: function(deviceInfo) {
//backwards compatibility
if (typeof deviceInfo !== 'object') {
deviceInfo = {
vendorId: arguments[0],
productId: arguments[1],
data: arguments[2],
endpoint: arguments[3]
};
}
if (_qz.tools.versionCompare(2, 1, 0, 12) >= 0) {
if (typeof deviceInfo.data !== 'object') {
deviceInfo.data = {
data: deviceInfo.data,
type: "PLAIN"
}
}
if (deviceInfo.data.type && deviceInfo.data.type.toUpperCase() == "FILE") {
deviceInfo.data.data = _qz.tools.absolute(deviceInfo.data.data);
}
} else {
if (typeof deviceInfo.data === 'object') {
if (deviceInfo.data.type.toUpperCase() !== "PLAIN"
|| typeof deviceInfo.data.data !== "string") {
return _qz.tools.reject(new Error("Data format is not supported with connected QZ Tray version " + _qz.websocket.connection.version));
}
deviceInfo.data = deviceInfo.data.data;
}
}
return _qz.websocket.dataPromise('hid.sendData', deviceInfo);
},
/**
* Read data from a claimed HID device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of HID device's vendor ID.
* @param deviceInfo.productId Hex string of HID device's product ID.
* @param deviceInfo.usagePage Hex string of HID device's usage page when multiple are present.
* @param deviceInfo.serial Serial ID of HID device.
* @param deviceInfo.responseSize Size of the byte array to receive a response in.
* @returns {Promise<Array<string>|Error>} List of (hexadecimal) bytes received from the HID device.
* @since 2.0.1
*
* @memberof qz.hid
*/
readData: function(deviceInfo) {
//backwards compatibility
if (typeof deviceInfo !== 'object') {
deviceInfo = {
vendorId: arguments[0],
productId: arguments[1],
responseSize: arguments[2]
};
}
return _qz.websocket.dataPromise('hid.readData', deviceInfo);
},
/**
* Send a feature report to a claimed HID device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of HID device's vendor ID.
* @param deviceInfo.productId Hex string of HID device's product ID.
* @param deviceInfo.usagePage Hex string of HID device's usage page when multiple are present.
* @param deviceInfo.serial Serial ID of HID device.
* @param deviceInfo.data Bytes to send over specified endpoint.
* @param deviceInfo.endpoint=0x00 First byte of the data packet signifying the HID report ID.
* Must be 0x00 for devices only supporting a single report.
* @param deviceInfo.reportId=0x00 Alias for <code>deviceInfo.endpoint</code>. Not used if endpoint is provided.
* @param {string} [deviceInfo.type='PLAIN'] Valid values <code>[FILE | PLAIN | HEX | BASE64]</code>
* @returns {Promise<null|Error>}
*
* @memberof qz.hid
*/
sendFeatureReport: function(deviceInfo) {
return _qz.websocket.dataPromise('hid.sendFeatureReport', deviceInfo);
},
/**
* Get a feature report from a claimed HID device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of HID device's vendor ID.
* @param deviceInfo.productId Hex string of HID device's product ID.
* @param deviceInfo.usagePage Hex string of HID device's usage page when multiple are present.
* @param deviceInfo.serial Serial ID of HID device.
* @param deviceInfo.responseSize Size of the byte array to receive a response in.
* @returns {Promise<Array<string>|Error>} List of (hexadecimal) bytes received from the HID device.
*
* @memberof qz.hid
*/
getFeatureReport: function(deviceInfo) {
return _qz.websocket.dataPromise('hid.getFeatureReport', deviceInfo);
},
/**
* Provides a continuous stream of read data from a claimed HID device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of HID device's vendor ID.
* @param deviceInfo.productId Hex string of HID device's product ID.
* @param deviceInfo.usagePage Hex string of HID device's usage page when multiple are present.
* @param deviceInfo.serial Serial ID of HID device.
* @param deviceInfo.responseSize Size of the byte array to receive a response in.
* @param deviceInfo.interval=100 Frequency to send read data back, in milliseconds.
* @returns {Promise<null|Error>}
* @since 2.0.1
*
* @see qz.hid.setHidCallbacks
*
* @memberof qz.hid
*/
openStream: function(deviceInfo) {
//backwards compatibility
if (typeof deviceInfo !== 'object') {
deviceInfo = {
vendorId: arguments[0],
productId: arguments[1],
responseSize: arguments[2],
interval: arguments[3]
};
}
return _qz.websocket.dataPromise('hid.openStream', deviceInfo);
},
/**
* Stops the stream of read data from a claimed HID device.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of HID device's vendor ID.
* @param deviceInfo.productId Hex string of HID device's product ID.
* @param deviceInfo.usagePage Hex string of HID device's usage page when multiple are present.
* @param deviceInfo.serial Serial ID of HID device.
* @returns {Promise<null|Error>}
* @since 2.0.1
*
* @memberof qz.hid
*/
closeStream: function(deviceInfo) {
if (typeof deviceInfo !== 'object') { deviceInfo = { vendorId: arguments[0], productId: arguments[1] }; } //backwards compatibility
return _qz.websocket.dataPromise('hid.closeStream', deviceInfo);
},
/**
* Release a claimed HID device to free resources after sending/reading data.
*
* @param {object} deviceInfo Config details of the HID device.
* @param deviceInfo.vendorId Hex string of HID device's vendor ID.
* @param deviceInfo.productId Hex string of HID device's product ID.
* @param deviceInfo.usagePage Hex string of HID device's usage page when multiple are present.
* @param deviceInfo.serial Serial ID of HID device.
* @returns {Promise<null|Error>}
* @since 2.0.1
*
* @memberof qz.hid
*/
releaseDevice: function(deviceInfo) {
if (typeof deviceInfo !== 'object') { deviceInfo = { vendorId: arguments[0], productId: arguments[1] }; } //backwards compatibility
return _qz.websocket.dataPromise('hid.releaseDevice', deviceInfo);
}
},
/**
* Calls related to interactions with the filesystem
* @namespace qz.file
* @since 2.1
*/
file: {
/**
* List of files available at the given directory.<br/>
* Due to security reasons, paths are limited to the qz data directory unless overridden via properties file.
*
* @param {string} path Relative or absolute directory path. Must reside in qz data directory or a white-listed location.
* @param {Object} [params] Object containing file access parameters
* @param {boolean} [params.sandbox=true] If relative location from root is only available to the certificate's connection, otherwise all connections
* @param {boolean} [params.shared=true] If relative location from root is accessible to all users on the system, otherwise just the current user
* @returns {Promise<Array<String>|Error>} Array of files at the given path
*
* @memberof qz.file
*/
list: function(path, params) {
var param = _qz.tools.extend({ path: path }, params);
return _qz.websocket.dataPromise('file.list', param);
},
/**
* Reads contents of file at the given path.<br/>
* Due to security reasons, paths are limited to the qz data directory unless overridden via properties file.
*
* @param {string} path Relative or absolute file path. Must reside in qz data directory or a white-listed location.
* @param {Object} [params] Object containing file access parameters
* @param {boolean} [params.sandbox=true] If relative location from root is only available to the certificate's connection, otherwise all connections
* @param {boolean} [params.shared=true] If relative location from root is accessible to all users on the system, otherwise just the current user
* @param {string} [params.flavor='plain'] Flavor of data format used, valid flavors are <code>[base64 | hex | plain]</code>.
* @returns {Promise<String|Error>} String containing the file contents
*
* @memberof qz.file
*/
read: function(path, params) {
var param = _qz.tools.extend({ path: path }, params);
return _qz.websocket.dataPromise('file.read', param);
},
/**
* Writes data to the file at the given path.<br/>
* Due to security reasons, paths are limited to the qz data directory unless overridden via properties file.
*
* @param {string} path Relative or absolute file path. Must reside in qz data directory or a white-listed location.
* @param {Object} params Object containing file access parameters
* @param {string} params.data File data to be written
* @param {boolean} [params.sandbox=true] If relative location from root is only available to the certificate's connection, otherwise all connections
* @param {boolean} [params.shared=true] If relative location from root is accessible to all users on the system, otherwise just the current user
* @param {boolean} [params.append=false] Appends to the end of the file if set, otherwise overwrites existing contents
* @param {string} [params.flavor='plain'] Flavor of data format used, valid flavors are <code>[base64 | file | hex | plain]</code>.
* @returns {Promise<null|Error>}
*
* @memberof qz.file
*/
write: function(path, params) {
var param = _qz.tools.extend({ path: path }, params);
return _qz.websocket.dataPromise('file.write', param);
},
/**
* Deletes a file at given path.<br/>
* Due to security reasons, paths are limited to the qz data directory unless overridden via properties file.
*
* @param {string} path Relative or absolute file path. Must reside in qz data directory or a white-listed location.
* @param {Object} [params] Object containing file access parameters
* @param {boolean} [params.sandbox=true] If relative location from root is only available to the certificate's connection, otherwise all connections
* @param {boolean} [params.shared=true] If relative location from root is accessible to all users on the system, otherwise just the current user
* @returns {Promise<null|Error>}
*
* @memberof qz.file
*/
remove: function(path, params) {
var param = _qz.tools.extend({ path: path }, params);
return _qz.websocket.dataPromise('file.remove', param);
},
/**
* Provides a continuous stream of events (and optionally data) from a local file.
*
* @param {string} path Relative or absolute directory path. Must reside in qz data directory or a white-listed location.
* @param {Object} [params] Object containing file access parameters
* @param {boolean} [params.sandbox=true] If relative location from root is only available to the certificate's connection, otherwise all connections
* @param {boolean} [params.shared=true] If relative location from root is accessible to all users on the system, otherwise just the current user
* @param {Object} [params.listener] If defined, file data will be returned on events
* @param {number} [params.listener.bytes=-1] Number of bytes to return or -1 for all
* @param {number} [params.listener.lines=-1] Number of lines to return or -1 for all
* @param {boolean} [params.listener.reverse] Controls whether data should be returned from the bottom of the file. Default value is true for line mode and false for byte mode.
* @param {string|Array<string>} [params.include] File patterns to match. Blank values will be ignored.
* @param {string|Array<string>} [params.exclude] File patterns to exclude. Blank values will be ignored. Takes priority over <code>params.include</code>.
* @param {boolean} [params.ignoreCase=true] Whether <code>params.include</code> or <code>params.exclude</code> are case-sensitive.
* @returns {Promise<null|Error>}
* @since 2.1.0
*
* @see qz.file.setFileCallbacks
*
* @memberof qz.file
*/
startListening: function(path, params) {
if (params && typeof params.include !== 'undefined' && !Array.isArray(params.include)) {
params.include = [params.include];
}
if (params && typeof params.exclude !== 'undefined' && !Array.isArray(params.exclude)) {
params.exclude = [params.exclude];
}
var param = _qz.tools.extend({ path: path }, params);
return _qz.websocket.dataPromise('file.startListening', param);
},
/**
* Closes listeners with the provided settings. Omitting the path parameter will result in all listeners closing.
*
* @param {string} [path] Previously opened directory path of listener to close, or omit to close all.
* @param {Object} [params] Object containing file access parameters
* @param {boolean} [params.sandbox=true] If relative location from root is only available to the certificate's connection, otherwise all connections
* @param {boolean} [params.shared=true] If relative location from root is accessible to all users on the system, otherwise just the current user
* @returns {Promise<null|Error>}
*
* @memberof qz.file
*/
stopListening: function(path, params) {
var param = _qz.tools.extend({ path: path }, params);
return _qz.websocket.dataPromise('file.stopListening', param);
},
/**
* List of functions called for any response from a file listener.
* For ERROR types event data will contain, <code>{string} message</code>.
* For ACTION types event data will contain, <code>{string} file {string} eventType {string} [data]</code>.
*
* @param {Function|Array<Function>} calls Single or array of <code>Function({Object} eventData)</code> calls.
* @since 2.1.0
*
* @memberof qz.file
*/
setFileCallbacks: function(calls) {
_qz.file.fileCallbacks = calls;
}
},
/**
* Calls related to networking information
* @namespace qz.networking
* @since 2.1.0
*/
networking: {
/**
* @param {string} [hostname] Hostname to try to connect to when determining network interfaces, defaults to "google.com"
* @param {number} [port] Port to use with custom hostname, defaults to 443
* @returns {Promise<Object|Error>} Connected system's network information.
*
* @memberof qz.networking
* @since 2.1.0
*/
device: function(hostname, port) {
// Wrap 2.0
if (_qz.tools.isVersion(2, 0)) {
return _qz.compatible.networking(hostname, port, null, null, function(data) {
return { ip: data.ipAddress, mac: data.macAddress };
});
}
// Use 2.1
return _qz.websocket.dataPromise('networking.device', {
hostname: hostname,
port: port
});
},
/**
* Get computer hostname
*
* @param {string} [hostname] DEPRECATED Hostname to try to connect to when determining network interfaces, defaults to "google.com"
* @param {number} [port] DEPRECATED Port to use with custom hostname, defaults to 443
* @returns {Promise<string|Error>} Connected system's hostname.
*
* @memberof qz.networking
* @since 2.2.2
*/
hostname: function(hostname, port) {
// Wrap < 2.2.2
if (_qz.tools.versionCompare(2, 2, 2) < 0) {
return _qz.tools.promise(function(resolve, reject) {
_qz.websocket.dataPromise('networking.device', { hostname: hostname, port: port }).then(function(device) {
console.log(device);
resolve(device.hostname);
});
});
} else {
return _qz.websocket.dataPromise('networking.hostname');
}
},
/**
* @param {string} [hostname] Hostname to try to connect to when determining network interfaces, defaults to "google.com"
* @param {number} [port] Port to use with custom hostname, defaults to 443
* @returns {Promise<Array<Object>|Error>} Connected system's network information.
*
* @memberof qz.networking
* @since 2.1.0
*/
devices: function(hostname, port) {
// Wrap 2.0
if (_qz.tools.isVersion(2, 0)) {
return _qz.compatible.networking(hostname, port, null, null, function(data) {
return [{ ip: data.ipAddress, mac: data.macAddress }];
});
}
// Use 2.1
return _qz.websocket.dataPromise('networking.devices', {
hostname: hostname,
port: port
});
}
},
/**
* Calls related to signing connection requests.
* @namespace qz.security
*/
security: {
/**
* Set promise resolver for calls to acquire the site's certificate.
*
* @param {Function|AsyncFunction|Promise<string>} promiseHandler Either a function that will be used as a promise resolver (of format <code>Function({function} resolve, {function}reject)</code>),
* an async function, or a promise. Any of which should return the public certificate via their respective <code>resolve</code> call.
*
* @memberof qz.security
*/
setCertificatePromise: function(promiseHandler) {
_qz.security.certHandler = promiseHandler;
},
/**
* Set promise factory for calls to sign API calls.
*
* @param {Function|AsyncFunction} promiseFactory Either a function that accepts a string parameter of the data to be signed
* and returns a function to be used as a promise resolver (of format <code>Function({function} resolve, {function}reject)</code>),
* or an async function that can take a string parameter of the data to be signed. Either of which should return the signed contents of
* the passed string parameter via their respective <code>resolve</code> call.
*
* @example
* qz.security.setSignaturePromise(function(dataToSign) {
* return function(resolve, reject) {
* $.ajax("/signing-url?data=" + dataToSign).then(resolve, reject);
* }
* })
*
* @memberof qz.security
*/
setSignaturePromise: function(promiseFactory) {
_qz.security.signatureFactory = promiseFactory;
},
/**
* Set which signing algorithm QZ will check signatures against.
*
* @param {string} algorithm The algorithm used in signing. Valid values: <code>[SHA1 | SHA256 | SHA512]</code>
* @since 2.1.0
*
* @memberof qz.security
*/
setSignatureAlgorithm: function(algorithm) {
//warn for incompatibilities if known
if (!_qz.compatible.algorithm()) {
return;
}
if (["SHA1", "SHA256", "SHA512"].indexOf(algorithm.toUpperCase()) < 0) {
_qz.log.error("Signing algorithm '" + algorithm + "' is not supported.");
} else {
_qz.security.signAlgorithm = algorithm;
}
},
/**
* Get the signing algorithm QZ will be checking signatures against.
*
* @returns {string} The algorithm used in signing.
* @since 2.1.0
*
* @memberof qz.security
*/
getSignatureAlgorithm: function() {
return _qz.security.signAlgorithm;
}
},
/**
* Calls related to compatibility adjustments
* @namespace qz.api
*/
api: {
/**
* Show or hide QZ api debugging statements in the browser console.
*
* @param {boolean} show Whether the debugging logs for QZ should be shown. Hidden by default.
* @returns {boolean} Value of debugging flag
* @memberof qz.api
*/
showDebug: function(show) {
return (_qz.DEBUG = show);
},
/**
* Get version of connected QZ Tray application.
*
* @returns {Promise<string|Error>} Version number of QZ Tray.
*
* @memberof qz.api
*/
getVersion: function() {
return _qz.websocket.dataPromise('getVersion');
},
/**
* Checks for the specified version of connected QZ Tray application.
*
* @param {string|number} [major] Major version to check
* @param {string|number} [minor] Minor version to check
* @param {string|number} [patch] Patch version to check
*
* @memberof qz.api
*/
isVersion: _qz.tools.isVersion,
/**
* Checks if the connected QZ Tray application is greater than the specified version.
*
* @param {string|number} major Major version to check
* @param {string|number} [minor] Minor version to check
* @param {string|number} [patch] Patch version to check
* @param {string|number} [build] Build version to check
* @returns {boolean} True if connected version is greater than the version specified.
*
* @memberof qz.api
* @since 2.1.0-4
*/
isVersionGreater: function(major, minor, patch, build) {
return _qz.tools.versionCompare(major, minor, patch, build) > 0;
},
/**
* Checks if the connected QZ Tray application is less than the specified version.
*
* @param {string|number} major Major version to check
* @param {string|number} [minor] Minor version to check
* @param {string|number} [patch] Patch version to check
* @param {string|number} [build] Build version to check
* @returns {boolean} True if connected version is less than the version specified.
*
* @memberof qz.api
* @since 2.1.0-4
*/
isVersionLess: function(major, minor, patch, build) {
return _qz.tools.versionCompare(major, minor, patch, build) < 0;
},
/**
* Change the promise library used by QZ API.
* Should be called before any initialization to avoid possible errors.
*
* @param {Function} promiser <code>Function({function} resolver)</code> called to create new promises.
*
* @memberof qz.api
*/
setPromiseType: function(promiser) {
_qz.tools.promise = promiser;
},
/**
* Change the SHA-256 hashing function used by QZ API.
* Should be called before any initialization to avoid possible errors.
*
* @param {Function} hasher <code>Function({function} message)</code> called to create hash of passed string.
*
* @memberof qz.api
*/
setSha256Type: function(hasher) {
_qz.tools.hash = hasher;
},
/**
* Change the WebSocket handler.
* Should be called before any initialization to avoid possible errors.
*
* @param {Function} ws <code>Function({function} WebSocket)</code> called to override the internal WebSocket handler.
*
* @memberof qz.api
*/
setWebSocketType: function(ws) {
_qz.tools.ws = ws;
}
},
/**
* Version of this JavaScript library
*
* @constant {string}
*
* @memberof qz
*/
version: _qz.VERSION
};
return qz;
})();
(function() {
if (typeof define === 'function' && define.amd) {
define(qz);
} else if (typeof exports === 'object') {
module.exports = qz;
} else {
window.qz = qz;
}
})();