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-rw-r--r--node_modules/engine.io-parser/lib/browser.js606
-rw-r--r--node_modules/engine.io-parser/lib/index.js480
-rw-r--r--node_modules/engine.io-parser/lib/keys.js19
-rw-r--r--node_modules/engine.io-parser/lib/utf8.js255
4 files changed, 1360 insertions, 0 deletions
diff --git a/node_modules/engine.io-parser/lib/browser.js b/node_modules/engine.io-parser/lib/browser.js
new file mode 100644
index 0000000..5a5e506
--- /dev/null
+++ b/node_modules/engine.io-parser/lib/browser.js
@@ -0,0 +1,606 @@
+/**
+ * Module dependencies.
+ */
+
+var keys = require('./keys');
+var hasBinary = require('has-binary2');
+var sliceBuffer = require('arraybuffer.slice');
+var after = require('after');
+var utf8 = require('./utf8');
+
+var base64encoder;
+if (global && global.ArrayBuffer) {
+ base64encoder = require('base64-arraybuffer');
+}
+
+/**
+ * Check if we are running an android browser. That requires us to use
+ * ArrayBuffer with polling transports...
+ *
+ * http://ghinda.net/jpeg-blob-ajax-android/
+ */
+
+var isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);
+
+/**
+ * Check if we are running in PhantomJS.
+ * Uploading a Blob with PhantomJS does not work correctly, as reported here:
+ * https://github.com/ariya/phantomjs/issues/11395
+ * @type boolean
+ */
+var isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);
+
+/**
+ * When true, avoids using Blobs to encode payloads.
+ * @type boolean
+ */
+var dontSendBlobs = isAndroid || isPhantomJS;
+
+/**
+ * Current protocol version.
+ */
+
+exports.protocol = 3;
+
+/**
+ * Packet types.
+ */
+
+var packets = exports.packets = {
+ open: 0 // non-ws
+ , close: 1 // non-ws
+ , ping: 2
+ , pong: 3
+ , message: 4
+ , upgrade: 5
+ , noop: 6
+};
+
+var packetslist = keys(packets);
+
+/**
+ * Premade error packet.
+ */
+
+var err = { type: 'error', data: 'parser error' };
+
+/**
+ * Create a blob api even for blob builder when vendor prefixes exist
+ */
+
+var Blob = require('blob');
+
+/**
+ * Encodes a packet.
+ *
+ * <packet type id> [ <data> ]
+ *
+ * Example:
+ *
+ * 5hello world
+ * 3
+ * 4
+ *
+ * Binary is encoded in an identical principle
+ *
+ * @api private
+ */
+
+exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
+ if (typeof supportsBinary === 'function') {
+ callback = supportsBinary;
+ supportsBinary = false;
+ }
+
+ if (typeof utf8encode === 'function') {
+ callback = utf8encode;
+ utf8encode = null;
+ }
+
+ var data = (packet.data === undefined)
+ ? undefined
+ : packet.data.buffer || packet.data;
+
+ if (global.ArrayBuffer && data instanceof ArrayBuffer) {
+ return encodeArrayBuffer(packet, supportsBinary, callback);
+ } else if (Blob && data instanceof global.Blob) {
+ return encodeBlob(packet, supportsBinary, callback);
+ }
+
+ // might be an object with { base64: true, data: dataAsBase64String }
+ if (data && data.base64) {
+ return encodeBase64Object(packet, callback);
+ }
+
+ // Sending data as a utf-8 string
+ var encoded = packets[packet.type];
+
+ // data fragment is optional
+ if (undefined !== packet.data) {
+ encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);
+ }
+
+ return callback('' + encoded);
+
+};
+
+function encodeBase64Object(packet, callback) {
+ // packet data is an object { base64: true, data: dataAsBase64String }
+ var message = 'b' + exports.packets[packet.type] + packet.data.data;
+ return callback(message);
+}
+
+/**
+ * Encode packet helpers for binary types
+ */
+
+function encodeArrayBuffer(packet, supportsBinary, callback) {
+ if (!supportsBinary) {
+ return exports.encodeBase64Packet(packet, callback);
+ }
+
+ var data = packet.data;
+ var contentArray = new Uint8Array(data);
+ var resultBuffer = new Uint8Array(1 + data.byteLength);
+
+ resultBuffer[0] = packets[packet.type];
+ for (var i = 0; i < contentArray.length; i++) {
+ resultBuffer[i+1] = contentArray[i];
+ }
+
+ return callback(resultBuffer.buffer);
+}
+
+function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
+ if (!supportsBinary) {
+ return exports.encodeBase64Packet(packet, callback);
+ }
+
+ var fr = new FileReader();
+ fr.onload = function() {
+ packet.data = fr.result;
+ exports.encodePacket(packet, supportsBinary, true, callback);
+ };
+ return fr.readAsArrayBuffer(packet.data);
+}
+
+function encodeBlob(packet, supportsBinary, callback) {
+ if (!supportsBinary) {
+ return exports.encodeBase64Packet(packet, callback);
+ }
+
+ if (dontSendBlobs) {
+ return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
+ }
+
+ var length = new Uint8Array(1);
+ length[0] = packets[packet.type];
+ var blob = new Blob([length.buffer, packet.data]);
+
+ return callback(blob);
+}
+
+/**
+ * Encodes a packet with binary data in a base64 string
+ *
+ * @param {Object} packet, has `type` and `data`
+ * @return {String} base64 encoded message
+ */
+
+exports.encodeBase64Packet = function(packet, callback) {
+ var message = 'b' + exports.packets[packet.type];
+ if (Blob && packet.data instanceof global.Blob) {
+ var fr = new FileReader();
+ fr.onload = function() {
+ var b64 = fr.result.split(',')[1];
+ callback(message + b64);
+ };
+ return fr.readAsDataURL(packet.data);
+ }
+
+ var b64data;
+ try {
+ b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
+ } catch (e) {
+ // iPhone Safari doesn't let you apply with typed arrays
+ var typed = new Uint8Array(packet.data);
+ var basic = new Array(typed.length);
+ for (var i = 0; i < typed.length; i++) {
+ basic[i] = typed[i];
+ }
+ b64data = String.fromCharCode.apply(null, basic);
+ }
+ message += global.btoa(b64data);
+ return callback(message);
+};
+
+/**
+ * Decodes a packet. Changes format to Blob if requested.
+ *
+ * @return {Object} with `type` and `data` (if any)
+ * @api private
+ */
+
+exports.decodePacket = function (data, binaryType, utf8decode) {
+ if (data === undefined) {
+ return err;
+ }
+ // String data
+ if (typeof data === 'string') {
+ if (data.charAt(0) === 'b') {
+ return exports.decodeBase64Packet(data.substr(1), binaryType);
+ }
+
+ if (utf8decode) {
+ data = tryDecode(data);
+ if (data === false) {
+ return err;
+ }
+ }
+ var type = data.charAt(0);
+
+ if (Number(type) != type || !packetslist[type]) {
+ return err;
+ }
+
+ if (data.length > 1) {
+ return { type: packetslist[type], data: data.substring(1) };
+ } else {
+ return { type: packetslist[type] };
+ }
+ }
+
+ var asArray = new Uint8Array(data);
+ var type = asArray[0];
+ var rest = sliceBuffer(data, 1);
+ if (Blob && binaryType === 'blob') {
+ rest = new Blob([rest]);
+ }
+ return { type: packetslist[type], data: rest };
+};
+
+function tryDecode(data) {
+ try {
+ data = utf8.decode(data, { strict: false });
+ } catch (e) {
+ return false;
+ }
+ return data;
+}
+
+/**
+ * Decodes a packet encoded in a base64 string
+ *
+ * @param {String} base64 encoded message
+ * @return {Object} with `type` and `data` (if any)
+ */
+
+exports.decodeBase64Packet = function(msg, binaryType) {
+ var type = packetslist[msg.charAt(0)];
+ if (!base64encoder) {
+ return { type: type, data: { base64: true, data: msg.substr(1) } };
+ }
+
+ var data = base64encoder.decode(msg.substr(1));
+
+ if (binaryType === 'blob' && Blob) {
+ data = new Blob([data]);
+ }
+
+ return { type: type, data: data };
+};
+
+/**
+ * Encodes multiple messages (payload).
+ *
+ * <length>:data
+ *
+ * Example:
+ *
+ * 11:hello world2:hi
+ *
+ * If any contents are binary, they will be encoded as base64 strings. Base64
+ * encoded strings are marked with a b before the length specifier
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+exports.encodePayload = function (packets, supportsBinary, callback) {
+ if (typeof supportsBinary === 'function') {
+ callback = supportsBinary;
+ supportsBinary = null;
+ }
+
+ var isBinary = hasBinary(packets);
+
+ if (supportsBinary && isBinary) {
+ if (Blob && !dontSendBlobs) {
+ return exports.encodePayloadAsBlob(packets, callback);
+ }
+
+ return exports.encodePayloadAsArrayBuffer(packets, callback);
+ }
+
+ if (!packets.length) {
+ return callback('0:');
+ }
+
+ function setLengthHeader(message) {
+ return message.length + ':' + message;
+ }
+
+ function encodeOne(packet, doneCallback) {
+ exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {
+ doneCallback(null, setLengthHeader(message));
+ });
+ }
+
+ map(packets, encodeOne, function(err, results) {
+ return callback(results.join(''));
+ });
+};
+
+/**
+ * Async array map using after
+ */
+
+function map(ary, each, done) {
+ var result = new Array(ary.length);
+ var next = after(ary.length, done);
+
+ var eachWithIndex = function(i, el, cb) {
+ each(el, function(error, msg) {
+ result[i] = msg;
+ cb(error, result);
+ });
+ };
+
+ for (var i = 0; i < ary.length; i++) {
+ eachWithIndex(i, ary[i], next);
+ }
+}
+
+/*
+ * Decodes data when a payload is maybe expected. Possible binary contents are
+ * decoded from their base64 representation
+ *
+ * @param {String} data, callback method
+ * @api public
+ */
+
+exports.decodePayload = function (data, binaryType, callback) {
+ if (typeof data !== 'string') {
+ return exports.decodePayloadAsBinary(data, binaryType, callback);
+ }
+
+ if (typeof binaryType === 'function') {
+ callback = binaryType;
+ binaryType = null;
+ }
+
+ var packet;
+ if (data === '') {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ var length = '', n, msg;
+
+ for (var i = 0, l = data.length; i < l; i++) {
+ var chr = data.charAt(i);
+
+ if (chr !== ':') {
+ length += chr;
+ continue;
+ }
+
+ if (length === '' || (length != (n = Number(length)))) {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ msg = data.substr(i + 1, n);
+
+ if (length != msg.length) {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ if (msg.length) {
+ packet = exports.decodePacket(msg, binaryType, false);
+
+ if (err.type === packet.type && err.data === packet.data) {
+ // parser error in individual packet - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ var ret = callback(packet, i + n, l);
+ if (false === ret) return;
+ }
+
+ // advance cursor
+ i += n;
+ length = '';
+ }
+
+ if (length !== '') {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+};
+
+/**
+ * Encodes multiple messages (payload) as binary.
+ *
+ * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
+ * 255><data>
+ *
+ * Example:
+ * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
+ *
+ * @param {Array} packets
+ * @return {ArrayBuffer} encoded payload
+ * @api private
+ */
+
+exports.encodePayloadAsArrayBuffer = function(packets, callback) {
+ if (!packets.length) {
+ return callback(new ArrayBuffer(0));
+ }
+
+ function encodeOne(packet, doneCallback) {
+ exports.encodePacket(packet, true, true, function(data) {
+ return doneCallback(null, data);
+ });
+ }
+
+ map(packets, encodeOne, function(err, encodedPackets) {
+ var totalLength = encodedPackets.reduce(function(acc, p) {
+ var len;
+ if (typeof p === 'string'){
+ len = p.length;
+ } else {
+ len = p.byteLength;
+ }
+ return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
+ }, 0);
+
+ var resultArray = new Uint8Array(totalLength);
+
+ var bufferIndex = 0;
+ encodedPackets.forEach(function(p) {
+ var isString = typeof p === 'string';
+ var ab = p;
+ if (isString) {
+ var view = new Uint8Array(p.length);
+ for (var i = 0; i < p.length; i++) {
+ view[i] = p.charCodeAt(i);
+ }
+ ab = view.buffer;
+ }
+
+ if (isString) { // not true binary
+ resultArray[bufferIndex++] = 0;
+ } else { // true binary
+ resultArray[bufferIndex++] = 1;
+ }
+
+ var lenStr = ab.byteLength.toString();
+ for (var i = 0; i < lenStr.length; i++) {
+ resultArray[bufferIndex++] = parseInt(lenStr[i]);
+ }
+ resultArray[bufferIndex++] = 255;
+
+ var view = new Uint8Array(ab);
+ for (var i = 0; i < view.length; i++) {
+ resultArray[bufferIndex++] = view[i];
+ }
+ });
+
+ return callback(resultArray.buffer);
+ });
+};
+
+/**
+ * Encode as Blob
+ */
+
+exports.encodePayloadAsBlob = function(packets, callback) {
+ function encodeOne(packet, doneCallback) {
+ exports.encodePacket(packet, true, true, function(encoded) {
+ var binaryIdentifier = new Uint8Array(1);
+ binaryIdentifier[0] = 1;
+ if (typeof encoded === 'string') {
+ var view = new Uint8Array(encoded.length);
+ for (var i = 0; i < encoded.length; i++) {
+ view[i] = encoded.charCodeAt(i);
+ }
+ encoded = view.buffer;
+ binaryIdentifier[0] = 0;
+ }
+
+ var len = (encoded instanceof ArrayBuffer)
+ ? encoded.byteLength
+ : encoded.size;
+
+ var lenStr = len.toString();
+ var lengthAry = new Uint8Array(lenStr.length + 1);
+ for (var i = 0; i < lenStr.length; i++) {
+ lengthAry[i] = parseInt(lenStr[i]);
+ }
+ lengthAry[lenStr.length] = 255;
+
+ if (Blob) {
+ var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
+ doneCallback(null, blob);
+ }
+ });
+ }
+
+ map(packets, encodeOne, function(err, results) {
+ return callback(new Blob(results));
+ });
+};
+
+/*
+ * Decodes data when a payload is maybe expected. Strings are decoded by
+ * interpreting each byte as a key code for entries marked to start with 0. See
+ * description of encodePayloadAsBinary
+ *
+ * @param {ArrayBuffer} data, callback method
+ * @api public
+ */
+
+exports.decodePayloadAsBinary = function (data, binaryType, callback) {
+ if (typeof binaryType === 'function') {
+ callback = binaryType;
+ binaryType = null;
+ }
+
+ var bufferTail = data;
+ var buffers = [];
+
+ while (bufferTail.byteLength > 0) {
+ var tailArray = new Uint8Array(bufferTail);
+ var isString = tailArray[0] === 0;
+ var msgLength = '';
+
+ for (var i = 1; ; i++) {
+ if (tailArray[i] === 255) break;
+
+ // 310 = char length of Number.MAX_VALUE
+ if (msgLength.length > 310) {
+ return callback(err, 0, 1);
+ }
+
+ msgLength += tailArray[i];
+ }
+
+ bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
+ msgLength = parseInt(msgLength);
+
+ var msg = sliceBuffer(bufferTail, 0, msgLength);
+ if (isString) {
+ try {
+ msg = String.fromCharCode.apply(null, new Uint8Array(msg));
+ } catch (e) {
+ // iPhone Safari doesn't let you apply to typed arrays
+ var typed = new Uint8Array(msg);
+ msg = '';
+ for (var i = 0; i < typed.length; i++) {
+ msg += String.fromCharCode(typed[i]);
+ }
+ }
+ }
+
+ buffers.push(msg);
+ bufferTail = sliceBuffer(bufferTail, msgLength);
+ }
+
+ var total = buffers.length;
+ buffers.forEach(function(buffer, i) {
+ callback(exports.decodePacket(buffer, binaryType, true), i, total);
+ });
+};
diff --git a/node_modules/engine.io-parser/lib/index.js b/node_modules/engine.io-parser/lib/index.js
new file mode 100644
index 0000000..c01b0a0
--- /dev/null
+++ b/node_modules/engine.io-parser/lib/index.js
@@ -0,0 +1,480 @@
+/**
+ * Module dependencies.
+ */
+
+var utf8 = require('./utf8');
+var hasBinary = require('has-binary2');
+var after = require('after');
+var keys = require('./keys');
+
+/**
+ * Current protocol version.
+ */
+exports.protocol = 3;
+
+/**
+ * Packet types.
+ */
+
+var packets = exports.packets = {
+ open: 0 // non-ws
+ , close: 1 // non-ws
+ , ping: 2
+ , pong: 3
+ , message: 4
+ , upgrade: 5
+ , noop: 6
+};
+
+var packetslist = keys(packets);
+
+/**
+ * Premade error packet.
+ */
+
+var err = { type: 'error', data: 'parser error' };
+
+/**
+ * Encodes a packet.
+ *
+ * <packet type id> [ <data> ]
+ *
+ * Example:
+ *
+ * 5hello world
+ * 3
+ * 4
+ *
+ * Binary is encoded in an identical principle
+ *
+ * @api private
+ */
+
+exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
+ if (typeof supportsBinary === 'function') {
+ callback = supportsBinary;
+ supportsBinary = null;
+ }
+
+ if (typeof utf8encode === 'function') {
+ callback = utf8encode;
+ utf8encode = null;
+ }
+
+ if (Buffer.isBuffer(packet.data)) {
+ return encodeBuffer(packet, supportsBinary, callback);
+ } else if (packet.data && (packet.data.buffer || packet.data) instanceof ArrayBuffer) {
+ packet.data = arrayBufferToBuffer(packet.data);
+ return encodeBuffer(packet, supportsBinary, callback);
+ }
+
+ // Sending data as a utf-8 string
+ var encoded = packets[packet.type];
+
+ // data fragment is optional
+ if (undefined !== packet.data) {
+ encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);
+ }
+
+ return callback('' + encoded);
+};
+
+/**
+ * Encode Buffer data
+ */
+
+function encodeBuffer(packet, supportsBinary, callback) {
+ if (!supportsBinary) {
+ return exports.encodeBase64Packet(packet, callback);
+ }
+
+ var data = packet.data;
+ var typeBuffer = new Buffer(1);
+ typeBuffer[0] = packets[packet.type];
+ return callback(Buffer.concat([typeBuffer, data]));
+}
+
+/**
+ * Encodes a packet with binary data in a base64 string
+ *
+ * @param {Object} packet, has `type` and `data`
+ * @return {String} base64 encoded message
+ */
+
+exports.encodeBase64Packet = function(packet, callback){
+ if (!Buffer.isBuffer(packet.data)) {
+ packet.data = arrayBufferToBuffer(packet.data);
+ }
+
+ var message = 'b' + packets[packet.type];
+ message += packet.data.toString('base64');
+ return callback(message);
+};
+
+/**
+ * Decodes a packet. Data also available as an ArrayBuffer if requested.
+ *
+ * @return {Object} with `type` and `data` (if any)
+ * @api private
+ */
+
+exports.decodePacket = function (data, binaryType, utf8decode) {
+ if (data === undefined) {
+ return err;
+ }
+
+ var type;
+
+ // String data
+ if (typeof data === 'string') {
+
+ type = data.charAt(0);
+
+ if (type === 'b') {
+ return exports.decodeBase64Packet(data.substr(1), binaryType);
+ }
+
+ if (utf8decode) {
+ data = tryDecode(data);
+ if (data === false) {
+ return err;
+ }
+ }
+
+ if (Number(type) != type || !packetslist[type]) {
+ return err;
+ }
+
+ if (data.length > 1) {
+ return { type: packetslist[type], data: data.substring(1) };
+ } else {
+ return { type: packetslist[type] };
+ }
+ }
+
+ // Binary data
+ if (binaryType === 'arraybuffer') {
+ // wrap Buffer/ArrayBuffer data into an Uint8Array
+ var intArray = new Uint8Array(data);
+ type = intArray[0];
+ return { type: packetslist[type], data: intArray.buffer.slice(1) };
+ }
+
+ if (data instanceof ArrayBuffer) {
+ data = arrayBufferToBuffer(data);
+ }
+ type = data[0];
+ return { type: packetslist[type], data: data.slice(1) };
+};
+
+function tryDecode(data) {
+ try {
+ data = utf8.decode(data, { strict: false });
+ } catch (e) {
+ return false;
+ }
+ return data;
+}
+
+/**
+ * Decodes a packet encoded in a base64 string.
+ *
+ * @param {String} base64 encoded message
+ * @return {Object} with `type` and `data` (if any)
+ */
+
+exports.decodeBase64Packet = function(msg, binaryType) {
+ var type = packetslist[msg.charAt(0)];
+ var data = new Buffer(msg.substr(1), 'base64');
+ if (binaryType === 'arraybuffer') {
+ var abv = new Uint8Array(data.length);
+ for (var i = 0; i < abv.length; i++){
+ abv[i] = data[i];
+ }
+ data = abv.buffer;
+ }
+ return { type: type, data: data };
+};
+
+/**
+ * Encodes multiple messages (payload).
+ *
+ * <length>:data
+ *
+ * Example:
+ *
+ * 11:hello world2:hi
+ *
+ * If any contents are binary, they will be encoded as base64 strings. Base64
+ * encoded strings are marked with a b before the length specifier
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+exports.encodePayload = function (packets, supportsBinary, callback) {
+ if (typeof supportsBinary === 'function') {
+ callback = supportsBinary;
+ supportsBinary = null;
+ }
+
+ if (supportsBinary && hasBinary(packets)) {
+ return exports.encodePayloadAsBinary(packets, callback);
+ }
+
+ if (!packets.length) {
+ return callback('0:');
+ }
+
+ function encodeOne(packet, doneCallback) {
+ exports.encodePacket(packet, supportsBinary, false, function(message) {
+ doneCallback(null, setLengthHeader(message));
+ });
+ }
+
+ map(packets, encodeOne, function(err, results) {
+ return callback(results.join(''));
+ });
+};
+
+function setLengthHeader(message) {
+ return message.length + ':' + message;
+}
+
+/**
+ * Async array map using after
+ */
+
+function map(ary, each, done) {
+ var result = new Array(ary.length);
+ var next = after(ary.length, done);
+
+ for (var i = 0; i < ary.length; i++) {
+ each(ary[i], function(error, msg) {
+ result[i] = msg;
+ next(error, result);
+ });
+ }
+}
+
+/*
+ * Decodes data when a payload is maybe expected. Possible binary contents are
+ * decoded from their base64 representation
+ *
+ * @param {String} data, callback method
+ * @api public
+ */
+
+exports.decodePayload = function (data, binaryType, callback) {
+ if (typeof data !== 'string') {
+ return exports.decodePayloadAsBinary(data, binaryType, callback);
+ }
+
+ if (typeof binaryType === 'function') {
+ callback = binaryType;
+ binaryType = null;
+ }
+
+ if (data === '') {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ var length = '', n, msg, packet;
+
+ for (var i = 0, l = data.length; i < l; i++) {
+ var chr = data.charAt(i);
+
+ if (chr !== ':') {
+ length += chr;
+ continue;
+ }
+
+ if (length === '' || (length != (n = Number(length)))) {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ msg = data.substr(i + 1, n);
+
+ if (length != msg.length) {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ if (msg.length) {
+ packet = exports.decodePacket(msg, binaryType, false);
+
+ if (err.type === packet.type && err.data === packet.data) {
+ // parser error in individual packet - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+ var more = callback(packet, i + n, l);
+ if (false === more) return;
+ }
+
+ // advance cursor
+ i += n;
+ length = '';
+ }
+
+ if (length !== '') {
+ // parser error - ignoring payload
+ return callback(err, 0, 1);
+ }
+
+};
+
+/**
+ *
+ * Converts a buffer to a utf8.js encoded string
+ *
+ * @api private
+ */
+
+function bufferToString(buffer) {
+ var str = '';
+ for (var i = 0, l = buffer.length; i < l; i++) {
+ str += String.fromCharCode(buffer[i]);
+ }
+ return str;
+}
+
+/**
+ *
+ * Converts a utf8.js encoded string to a buffer
+ *
+ * @api private
+ */
+
+function stringToBuffer(string) {
+ var buf = new Buffer(string.length);
+ for (var i = 0, l = string.length; i < l; i++) {
+ buf.writeUInt8(string.charCodeAt(i), i);
+ }
+ return buf;
+}
+
+/**
+ *
+ * Converts an ArrayBuffer to a Buffer
+ *
+ * @api private
+ */
+
+function arrayBufferToBuffer(data) {
+ // data is either an ArrayBuffer or ArrayBufferView.
+ var array = new Uint8Array(data.buffer || data);
+ var length = data.byteLength || data.length;
+ var offset = data.byteOffset || 0;
+ var buffer = new Buffer(length);
+
+ for (var i = 0; i < length; i++) {
+ buffer[i] = array[offset + i];
+ }
+ return buffer;
+}
+
+/**
+ * Encodes multiple messages (payload) as binary.
+ *
+ * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
+ * 255><data>
+ *
+ * Example:
+ * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
+ *
+ * @param {Array} packets
+ * @return {Buffer} encoded payload
+ * @api private
+ */
+
+exports.encodePayloadAsBinary = function (packets, callback) {
+ if (!packets.length) {
+ return callback(new Buffer(0));
+ }
+
+ map(packets, encodeOneBinaryPacket, function(err, results) {
+ return callback(Buffer.concat(results));
+ });
+};
+
+function encodeOneBinaryPacket(p, doneCallback) {
+
+ function onBinaryPacketEncode(packet) {
+
+ var encodingLength = '' + packet.length;
+ var sizeBuffer;
+
+ if (typeof packet === 'string') {
+ sizeBuffer = new Buffer(encodingLength.length + 2);
+ sizeBuffer[0] = 0; // is a string (not true binary = 0)
+ for (var i = 0; i < encodingLength.length; i++) {
+ sizeBuffer[i + 1] = parseInt(encodingLength[i], 10);
+ }
+ sizeBuffer[sizeBuffer.length - 1] = 255;
+ return doneCallback(null, Buffer.concat([sizeBuffer, stringToBuffer(packet)]));
+ }
+
+ sizeBuffer = new Buffer(encodingLength.length + 2);
+ sizeBuffer[0] = 1; // is binary (true binary = 1)
+ for (var i = 0; i < encodingLength.length; i++) {
+ sizeBuffer[i + 1] = parseInt(encodingLength[i], 10);
+ }
+ sizeBuffer[sizeBuffer.length - 1] = 255;
+
+ doneCallback(null, Buffer.concat([sizeBuffer, packet]));
+ }
+
+ exports.encodePacket(p, true, true, onBinaryPacketEncode);
+
+}
+
+
+/*
+ * Decodes data when a payload is maybe expected. Strings are decoded by
+ * interpreting each byte as a key code for entries marked to start with 0. See
+ * description of encodePayloadAsBinary
+
+ * @param {Buffer} data, callback method
+ * @api public
+ */
+
+exports.decodePayloadAsBinary = function (data, binaryType, callback) {
+ if (typeof binaryType === 'function') {
+ callback = binaryType;
+ binaryType = null;
+ }
+
+ var bufferTail = data;
+ var buffers = [];
+ var i;
+
+ while (bufferTail.length > 0) {
+ var strLen = '';
+ var isString = bufferTail[0] === 0;
+ for (i = 1; ; i++) {
+ if (bufferTail[i] === 255) break;
+ // 310 = char length of Number.MAX_VALUE
+ if (strLen.length > 310) {
+ return callback(err, 0, 1);
+ }
+ strLen += '' + bufferTail[i];
+ }
+ bufferTail = bufferTail.slice(strLen.length + 1);
+
+ var msgLength = parseInt(strLen, 10);
+
+ var msg = bufferTail.slice(1, msgLength + 1);
+ if (isString) msg = bufferToString(msg);
+ buffers.push(msg);
+ bufferTail = bufferTail.slice(msgLength + 1);
+ }
+
+ var total = buffers.length;
+ for (i = 0; i < total; i++) {
+ var buffer = buffers[i];
+ callback(exports.decodePacket(buffer, binaryType, true), i, total);
+ }
+};
diff --git a/node_modules/engine.io-parser/lib/keys.js b/node_modules/engine.io-parser/lib/keys.js
new file mode 100644
index 0000000..947dafd
--- /dev/null
+++ b/node_modules/engine.io-parser/lib/keys.js
@@ -0,0 +1,19 @@
+
+/**
+ * Gets the keys for an object.
+ *
+ * @return {Array} keys
+ * @api private
+ */
+
+module.exports = Object.keys || function keys (obj){
+ var arr = [];
+ var has = Object.prototype.hasOwnProperty;
+
+ for (var i in obj) {
+ if (has.call(obj, i)) {
+ arr.push(i);
+ }
+ }
+ return arr;
+};
diff --git a/node_modules/engine.io-parser/lib/utf8.js b/node_modules/engine.io-parser/lib/utf8.js
new file mode 100644
index 0000000..83e2dd7
--- /dev/null
+++ b/node_modules/engine.io-parser/lib/utf8.js
@@ -0,0 +1,255 @@
+/*! https://mths.be/utf8js v2.1.2 by @mathias */
+;(function(root) {
+
+ // Detect free variables `exports`
+ var freeExports = typeof exports == 'object' && exports;
+
+ // Detect free variable `module`
+ var freeModule = typeof module == 'object' && module &&
+ module.exports == freeExports && module;
+
+ // Detect free variable `global`, from Node.js or Browserified code,
+ // and use it as `root`
+ var freeGlobal = typeof global == 'object' && global;
+ if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
+ root = freeGlobal;
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ var stringFromCharCode = String.fromCharCode;
+
+ // Taken from https://mths.be/punycode
+ function ucs2decode(string) {
+ var output = [];
+ var counter = 0;
+ var length = string.length;
+ var value;
+ var extra;
+ while (counter < length) {
+ value = string.charCodeAt(counter++);
+ if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
+ // high surrogate, and there is a next character
+ extra = string.charCodeAt(counter++);
+ if ((extra & 0xFC00) == 0xDC00) { // low surrogate
+ output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
+ } else {
+ // unmatched surrogate; only append this code unit, in case the next
+ // code unit is the high surrogate of a surrogate pair
+ output.push(value);
+ counter--;
+ }
+ } else {
+ output.push(value);
+ }
+ }
+ return output;
+ }
+
+ // Taken from https://mths.be/punycode
+ function ucs2encode(array) {
+ var length = array.length;
+ var index = -1;
+ var value;
+ var output = '';
+ while (++index < length) {
+ value = array[index];
+ if (value > 0xFFFF) {
+ value -= 0x10000;
+ output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
+ value = 0xDC00 | value & 0x3FF;
+ }
+ output += stringFromCharCode(value);
+ }
+ return output;
+ }
+
+ function checkScalarValue(codePoint, strict) {
+ if (codePoint >= 0xD800 && codePoint <= 0xDFFF) {
+ if (strict) {
+ throw Error(
+ 'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +
+ ' is not a scalar value'
+ );
+ }
+ return false;
+ }
+ return true;
+ }
+ /*--------------------------------------------------------------------------*/
+
+ function createByte(codePoint, shift) {
+ return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
+ }
+
+ function encodeCodePoint(codePoint, strict) {
+ if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
+ return stringFromCharCode(codePoint);
+ }
+ var symbol = '';
+ if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
+ symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
+ }
+ else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
+ if (!checkScalarValue(codePoint, strict)) {
+ codePoint = 0xFFFD;
+ }
+ symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
+ symbol += createByte(codePoint, 6);
+ }
+ else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
+ symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
+ symbol += createByte(codePoint, 12);
+ symbol += createByte(codePoint, 6);
+ }
+ symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
+ return symbol;
+ }
+
+ function utf8encode(string, opts) {
+ opts = opts || {};
+ var strict = false !== opts.strict;
+
+ var codePoints = ucs2decode(string);
+ var length = codePoints.length;
+ var index = -1;
+ var codePoint;
+ var byteString = '';
+ while (++index < length) {
+ codePoint = codePoints[index];
+ byteString += encodeCodePoint(codePoint, strict);
+ }
+ return byteString;
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ function readContinuationByte() {
+ if (byteIndex >= byteCount) {
+ throw Error('Invalid byte index');
+ }
+
+ var continuationByte = byteArray[byteIndex] & 0xFF;
+ byteIndex++;
+
+ if ((continuationByte & 0xC0) == 0x80) {
+ return continuationByte & 0x3F;
+ }
+
+ // If we end up here, it’s not a continuation byte
+ throw Error('Invalid continuation byte');
+ }
+
+ function decodeSymbol(strict) {
+ var byte1;
+ var byte2;
+ var byte3;
+ var byte4;
+ var codePoint;
+
+ if (byteIndex > byteCount) {
+ throw Error('Invalid byte index');
+ }
+
+ if (byteIndex == byteCount) {
+ return false;
+ }
+
+ // Read first byte
+ byte1 = byteArray[byteIndex] & 0xFF;
+ byteIndex++;
+
+ // 1-byte sequence (no continuation bytes)
+ if ((byte1 & 0x80) == 0) {
+ return byte1;
+ }
+
+ // 2-byte sequence
+ if ((byte1 & 0xE0) == 0xC0) {
+ byte2 = readContinuationByte();
+ codePoint = ((byte1 & 0x1F) << 6) | byte2;
+ if (codePoint >= 0x80) {
+ return codePoint;
+ } else {
+ throw Error('Invalid continuation byte');
+ }
+ }
+
+ // 3-byte sequence (may include unpaired surrogates)
+ if ((byte1 & 0xF0) == 0xE0) {
+ byte2 = readContinuationByte();
+ byte3 = readContinuationByte();
+ codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
+ if (codePoint >= 0x0800) {
+ return checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;
+ } else {
+ throw Error('Invalid continuation byte');
+ }
+ }
+
+ // 4-byte sequence
+ if ((byte1 & 0xF8) == 0xF0) {
+ byte2 = readContinuationByte();
+ byte3 = readContinuationByte();
+ byte4 = readContinuationByte();
+ codePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |
+ (byte3 << 0x06) | byte4;
+ if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
+ return codePoint;
+ }
+ }
+
+ throw Error('Invalid UTF-8 detected');
+ }
+
+ var byteArray;
+ var byteCount;
+ var byteIndex;
+ function utf8decode(byteString, opts) {
+ opts = opts || {};
+ var strict = false !== opts.strict;
+
+ byteArray = ucs2decode(byteString);
+ byteCount = byteArray.length;
+ byteIndex = 0;
+ var codePoints = [];
+ var tmp;
+ while ((tmp = decodeSymbol(strict)) !== false) {
+ codePoints.push(tmp);
+ }
+ return ucs2encode(codePoints);
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ var utf8 = {
+ 'version': '2.1.2',
+ 'encode': utf8encode,
+ 'decode': utf8decode
+ };
+
+ // Some AMD build optimizers, like r.js, check for specific condition patterns
+ // like the following:
+ if (
+ typeof define == 'function' &&
+ typeof define.amd == 'object' &&
+ define.amd
+ ) {
+ define(function() {
+ return utf8;
+ });
+ } else if (freeExports && !freeExports.nodeType) {
+ if (freeModule) { // in Node.js or RingoJS v0.8.0+
+ freeModule.exports = utf8;
+ } else { // in Narwhal or RingoJS v0.7.0-
+ var object = {};
+ var hasOwnProperty = object.hasOwnProperty;
+ for (var key in utf8) {
+ hasOwnProperty.call(utf8, key) && (freeExports[key] = utf8[key]);
+ }
+ }
+ } else { // in Rhino or a web browser
+ root.utf8 = utf8;
+ }
+
+}(this));
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 18:00:06 +0000