backend/app.js

@@ -9,11 +9,14 @@ const Message = require('./db/models/Message');
 const jwt = require('jsonwebtoken');
 const bcrypt = require('bcrypt');
 require('dotenv').config(); // add dotnv for config
+const Uuid = require('uuid'); //lib for unic id generate
+
 
 
 const server = http.createServer(app);
 app.use(cors());
-app.use(express.json());
+//app.use(express.json());
+app.use(express.static('static')); //folder for static files
 
 const io = require("socket.io")(server, {
     cors: {
@@ -93,6 +96,32 @@ app.post('/login', async (req, res) => {
 })
 
 
+const STATIC_PATH = process.env. STATIC_PATH || 'static';
+
+const loadUserAvatar = async (req, res) =>  {
+
+    console.log(req.files)
+    try {
+        const file = req.files;
+        // const user = await getOneUser(req.userName);
+        // console.log(user)
+        const avatarFileName = Uuid.v4() + '.jpeg';
+
+        console.log(STATIC_PATH + '\\' + avatarFileName, req);
+
+        file.mv(STATIC_PATH + '\\' + avatarFileName)
+        // console.log(STATIC_PATH + '\\' + avatarFileName, req);
+        // user.avatar = avatarFileName;
+        // user.save;
+        return res.json({ message:'Avatar was uploud succesfully...'})
+        
+    } catch (error) {
+        res.status(400).json({message: `Error uppload file to serverp: ${error}`});
+    }
+}
+
+app.post('/avatar', loadUserAvatar);
+
 io.use( async (socket, next) => {
     const token = socket.handshake.auth.token; 
     const sockets = await io.fetchSockets();

backend/db/models/User.js

@@ -5,7 +5,8 @@ const User = new Schema({
     hashPassword: {type: String, required: true},
     isAdmin: {type: Boolean, default: false},
     isBanned: {type: Boolean, default: false},
-    isMutted: {type: Boolean, default: false}
+    isMutted: {type: Boolean, default: false},
+    avatar: {type: String, unique: true, required: false}
 
 })
 

backend/node_modules/uuid/dist/esm-browser/index.js

@@ -0,0 +1,9 @@
+export { default as v1 } from './v1.js';
+export { default as v3 } from './v3.js';
+export { default as v4 } from './v4.js';
+export { default as v5 } from './v5.js';
+export { default as NIL } from './nil.js';
+export { default as version } from './version.js';
+export { default as validate } from './validate.js';
+export { default as stringify } from './stringify.js';
+export { default as parse } from './parse.js';

backend/node_modules/uuid/dist/esm-browser/md5.js

@@ -0,0 +1,215 @@
+/*
+ * Browser-compatible JavaScript MD5
+ *
+ * Modification of JavaScript MD5
+ * https://github.com/blueimp/JavaScript-MD5
+ *
+ * Copyright 2011, Sebastian Tschan
+ * https://blueimp.net
+ *
+ * Licensed under the MIT license:
+ * https://opensource.org/licenses/MIT
+ *
+ * Based on
+ * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
+ * Digest Algorithm, as defined in RFC 1321.
+ * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for more info.
+ */
+function md5(bytes) {
+  if (typeof bytes === 'string') {
+    var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape
+
+    bytes = new Uint8Array(msg.length);
+
+    for (var i = 0; i < msg.length; ++i) {
+      bytes[i] = msg.charCodeAt(i);
+    }
+  }
+
+  return md5ToHexEncodedArray(wordsToMd5(bytesToWords(bytes), bytes.length * 8));
+}
+/*
+ * Convert an array of little-endian words to an array of bytes
+ */
+
+
+function md5ToHexEncodedArray(input) {
+  var output = [];
+  var length32 = input.length * 32;
+  var hexTab = '0123456789abcdef';
+
+  for (var i = 0; i < length32; i += 8) {
+    var x = input[i >> 5] >>> i % 32 & 0xff;
+    var hex = parseInt(hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f), 16);
+    output.push(hex);
+  }
+
+  return output;
+}
+/**
+ * Calculate output length with padding and bit length
+ */
+
+
+function getOutputLength(inputLength8) {
+  return (inputLength8 + 64 >>> 9 << 4) + 14 + 1;
+}
+/*
+ * Calculate the MD5 of an array of little-endian words, and a bit length.
+ */
+
+
+function wordsToMd5(x, len) {
+  /* append padding */
+  x[len >> 5] |= 0x80 << len % 32;
+  x[getOutputLength(len) - 1] = len;
+  var a = 1732584193;
+  var b = -271733879;
+  var c = -1732584194;
+  var d = 271733878;
+
+  for (var i = 0; i < x.length; i += 16) {
+    var olda = a;
+    var oldb = b;
+    var oldc = c;
+    var oldd = d;
+    a = md5ff(a, b, c, d, x[i], 7, -680876936);
+    d = md5ff(d, a, b, c, x[i + 1], 12, -389564586);
+    c = md5ff(c, d, a, b, x[i + 2], 17, 606105819);
+    b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330);
+    a = md5ff(a, b, c, d, x[i + 4], 7, -176418897);
+    d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426);
+    c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341);
+    b = md5ff(b, c, d, a, x[i + 7], 22, -45705983);
+    a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416);
+    d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417);
+    c = md5ff(c, d, a, b, x[i + 10], 17, -42063);
+    b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162);
+    a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682);
+    d = md5ff(d, a, b, c, x[i + 13], 12, -40341101);
+    c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290);
+    b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329);
+    a = md5gg(a, b, c, d, x[i + 1], 5, -165796510);
+    d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632);
+    c = md5gg(c, d, a, b, x[i + 11], 14, 643717713);
+    b = md5gg(b, c, d, a, x[i], 20, -373897302);
+    a = md5gg(a, b, c, d, x[i + 5], 5, -701558691);
+    d = md5gg(d, a, b, c, x[i + 10], 9, 38016083);
+    c = md5gg(c, d, a, b, x[i + 15], 14, -660478335);
+    b = md5gg(b, c, d, a, x[i + 4], 20, -405537848);
+    a = md5gg(a, b, c, d, x[i + 9], 5, 568446438);
+    d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690);
+    c = md5gg(c, d, a, b, x[i + 3], 14, -187363961);
+    b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501);
+    a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467);
+    d = md5gg(d, a, b, c, x[i + 2], 9, -51403784);
+    c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473);
+    b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734);
+    a = md5hh(a, b, c, d, x[i + 5], 4, -378558);
+    d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463);
+    c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562);
+    b = md5hh(b, c, d, a, x[i + 14], 23, -35309556);
+    a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060);
+    d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353);
+    c = md5hh(c, d, a, b, x[i + 7], 16, -155497632);
+    b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640);
+    a = md5hh(a, b, c, d, x[i + 13], 4, 681279174);
+    d = md5hh(d, a, b, c, x[i], 11, -358537222);
+    c = md5hh(c, d, a, b, x[i + 3], 16, -722521979);
+    b = md5hh(b, c, d, a, x[i + 6], 23, 76029189);
+    a = md5hh(a, b, c, d, x[i + 9], 4, -640364487);
+    d = md5hh(d, a, b, c, x[i + 12], 11, -421815835);
+    c = md5hh(c, d, a, b, x[i + 15], 16, 530742520);
+    b = md5hh(b, c, d, a, x[i + 2], 23, -995338651);
+    a = md5ii(a, b, c, d, x[i], 6, -198630844);
+    d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415);
+    c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905);
+    b = md5ii(b, c, d, a, x[i + 5], 21, -57434055);
+    a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571);
+    d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606);
+    c = md5ii(c, d, a, b, x[i + 10], 15, -1051523);
+    b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799);
+    a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359);
+    d = md5ii(d, a, b, c, x[i + 15], 10, -30611744);
+    c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380);
+    b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649);
+    a = md5ii(a, b, c, d, x[i + 4], 6, -145523070);
+    d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379);
+    c = md5ii(c, d, a, b, x[i + 2], 15, 718787259);
+    b = md5ii(b, c, d, a, x[i + 9], 21, -343485551);
+    a = safeAdd(a, olda);
+    b = safeAdd(b, oldb);
+    c = safeAdd(c, oldc);
+    d = safeAdd(d, oldd);
+  }
+
+  return [a, b, c, d];
+}
+/*
+ * Convert an array bytes to an array of little-endian words
+ * Characters >255 have their high-byte silently ignored.
+ */
+
+
+function bytesToWords(input) {
+  if (input.length === 0) {
+    return [];
+  }
+
+  var length8 = input.length * 8;
+  var output = new Uint32Array(getOutputLength(length8));
+
+  for (var i = 0; i < length8; i += 8) {
+    output[i >> 5] |= (input[i / 8] & 0xff) << i % 32;
+  }
+
+  return output;
+}
+/*
+ * Add integers, wrapping at 2^32. This uses 16-bit operations internally
+ * to work around bugs in some JS interpreters.
+ */
+
+
+function safeAdd(x, y) {
+  var lsw = (x & 0xffff) + (y & 0xffff);
+  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
+  return msw << 16 | lsw & 0xffff;
+}
+/*
+ * Bitwise rotate a 32-bit number to the left.
+ */
+
+
+function bitRotateLeft(num, cnt) {
+  return num << cnt | num >>> 32 - cnt;
+}
+/*
+ * These functions implement the four basic operations the algorithm uses.
+ */
+
+
+function md5cmn(q, a, b, x, s, t) {
+  return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b);
+}
+
+function md5ff(a, b, c, d, x, s, t) {
+  return md5cmn(b & c | ~b & d, a, b, x, s, t);
+}
+
+function md5gg(a, b, c, d, x, s, t) {
+  return md5cmn(b & d | c & ~d, a, b, x, s, t);
+}
+
+function md5hh(a, b, c, d, x, s, t) {
+  return md5cmn(b ^ c ^ d, a, b, x, s, t);
+}
+
+function md5ii(a, b, c, d, x, s, t) {
+  return md5cmn(c ^ (b | ~d), a, b, x, s, t);
+}
+
+export default md5;

backend/node_modules/uuid/dist/esm-browser/nil.js

@@ -0,0 +1 @@
+export default '00000000-0000-0000-0000-000000000000';

backend/node_modules/uuid/dist/esm-browser/parse.js

@@ -0,0 +1,35 @@
+import validate from './validate.js';
+
+function parse(uuid) {
+  if (!validate(uuid)) {
+    throw TypeError('Invalid UUID');
+  }
+
+  var v;
+  var arr = new Uint8Array(16); // Parse ########-....-....-....-............
+
+  arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24;
+  arr[1] = v >>> 16 & 0xff;
+  arr[2] = v >>> 8 & 0xff;
+  arr[3] = v & 0xff; // Parse ........-####-....-....-............
+
+  arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8;
+  arr[5] = v & 0xff; // Parse ........-....-####-....-............
+
+  arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8;
+  arr[7] = v & 0xff; // Parse ........-....-....-####-............
+
+  arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8;
+  arr[9] = v & 0xff; // Parse ........-....-....-....-############
+  // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes)
+
+  arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff;
+  arr[11] = v / 0x100000000 & 0xff;
+  arr[12] = v >>> 24 & 0xff;
+  arr[13] = v >>> 16 & 0xff;
+  arr[14] = v >>> 8 & 0xff;
+  arr[15] = v & 0xff;
+  return arr;
+}
+
+export default parse;

backend/node_modules/uuid/dist/esm-browser/regex.js

@@ -0,0 +1 @@
+export default /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000)$/i;

backend/node_modules/uuid/dist/esm-browser/rng.js

@@ -0,0 +1,19 @@
+// Unique ID creation requires a high quality random # generator. In the browser we therefore
+// require the crypto API and do not support built-in fallback to lower quality random number
+// generators (like Math.random()).
+var getRandomValues;
+var rnds8 = new Uint8Array(16);
+export default function rng() {
+  // lazy load so that environments that need to polyfill have a chance to do so
+  if (!getRandomValues) {
+    // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation. Also,
+    // find the complete implementation of crypto (msCrypto) on IE11.
+    getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto) || typeof msCrypto !== 'undefined' && typeof msCrypto.getRandomValues === 'function' && msCrypto.getRandomValues.bind(msCrypto);
+
+    if (!getRandomValues) {
+      throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported');
+    }
+  }
+
+  return getRandomValues(rnds8);
+}

backend/node_modules/uuid/dist/esm-browser/sha1.js

@@ -0,0 +1,96 @@
+// Adapted from Chris Veness' SHA1 code at
+// http://www.movable-type.co.uk/scripts/sha1.html
+function f(s, x, y, z) {
+  switch (s) {
+    case 0:
+      return x & y ^ ~x & z;
+
+    case 1:
+      return x ^ y ^ z;
+
+    case 2:
+      return x & y ^ x & z ^ y & z;
+
+    case 3:
+      return x ^ y ^ z;
+  }
+}
+
+function ROTL(x, n) {
+  return x << n | x >>> 32 - n;
+}
+
+function sha1(bytes) {
+  var K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6];
+  var H = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0];
+
+  if (typeof bytes === 'string') {
+    var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape
+
+    bytes = [];
+
+    for (var i = 0; i < msg.length; ++i) {
+      bytes.push(msg.charCodeAt(i));
+    }
+  } else if (!Array.isArray(bytes)) {
+    // Convert Array-like to Array
+    bytes = Array.prototype.slice.call(bytes);
+  }
+
+  bytes.push(0x80);
+  var l = bytes.length / 4 + 2;
+  var N = Math.ceil(l / 16);
+  var M = new Array(N);
+
+  for (var _i = 0; _i < N; ++_i) {
+    var arr = new Uint32Array(16);
+
+    for (var j = 0; j < 16; ++j) {
+      arr[j] = bytes[_i * 64 + j * 4] << 24 | bytes[_i * 64 + j * 4 + 1] << 16 | bytes[_i * 64 + j * 4 + 2] << 8 | bytes[_i * 64 + j * 4 + 3];
+    }
+
+    M[_i] = arr;
+  }
+
+  M[N - 1][14] = (bytes.length - 1) * 8 / Math.pow(2, 32);
+  M[N - 1][14] = Math.floor(M[N - 1][14]);
+  M[N - 1][15] = (bytes.length - 1) * 8 & 0xffffffff;
+
+  for (var _i2 = 0; _i2 < N; ++_i2) {
+    var W = new Uint32Array(80);
+
+    for (var t = 0; t < 16; ++t) {
+      W[t] = M[_i2][t];
+    }
+
+    for (var _t = 16; _t < 80; ++_t) {
+      W[_t] = ROTL(W[_t - 3] ^ W[_t - 8] ^ W[_t - 14] ^ W[_t - 16], 1);
+    }
+
+    var a = H[0];
+    var b = H[1];
+    var c = H[2];
+    var d = H[3];
+    var e = H[4];
+
+    for (var _t2 = 0; _t2 < 80; ++_t2) {
+      var s = Math.floor(_t2 / 20);
+      var T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[_t2] >>> 0;
+      e = d;
+      d = c;
+      c = ROTL(b, 30) >>> 0;
+      b = a;
+      a = T;
+    }
+
+    H[0] = H[0] + a >>> 0;
+    H[1] = H[1] + b >>> 0;
+    H[2] = H[2] + c >>> 0;
+    H[3] = H[3] + d >>> 0;
+    H[4] = H[4] + e >>> 0;
+  }
+
+  return [H[0] >> 24 & 0xff, H[0] >> 16 & 0xff, H[0] >> 8 & 0xff, H[0] & 0xff, H[1] >> 24 & 0xff, H[1] >> 16 & 0xff, H[1] >> 8 & 0xff, H[1] & 0xff, H[2] >> 24 & 0xff, H[2] >> 16 & 0xff, H[2] >> 8 & 0xff, H[2] & 0xff, H[3] >> 24 & 0xff, H[3] >> 16 & 0xff, H[3] >> 8 & 0xff, H[3] & 0xff, H[4] >> 24 & 0xff, H[4] >> 16 & 0xff, H[4] >> 8 & 0xff, H[4] & 0xff];
+}
+
+export default sha1;

backend/node_modules/uuid/dist/esm-browser/v1.js

@@ -0,0 +1,95 @@
+import rng from './rng.js';
+import stringify from './stringify.js'; // **`v1()` - Generate time-based UUID**
+//
+// Inspired by https://github.com/LiosK/UUID.js
+// and http://docs.python.org/library/uuid.html
+
+var _nodeId;
+
+var _clockseq; // Previous uuid creation time
+
+
+var _lastMSecs = 0;
+var _lastNSecs = 0; // See https://github.com/uuidjs/uuid for API details
+
+function v1(options, buf, offset) {
+  var i = buf && offset || 0;
+  var b = buf || new Array(16);
+  options = options || {};
+  var node = options.node || _nodeId;
+  var clockseq = options.clockseq !== undefined ? options.clockseq : _clockseq; // node and clockseq need to be initialized to random values if they're not
+  // specified.  We do this lazily to minimize issues related to insufficient
+  // system entropy.  See #189
+
+  if (node == null || clockseq == null) {
+    var seedBytes = options.random || (options.rng || rng)();
+
+    if (node == null) {
+      // Per 4.5, create and 48-bit node id, (47 random bits + multicast bit = 1)
+      node = _nodeId = [seedBytes[0] | 0x01, seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]];
+    }
+
+    if (clockseq == null) {
+      // Per 4.2.2, randomize (14 bit) clockseq
+      clockseq = _clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff;
+    }
+  } // UUID timestamps are 100 nano-second units since the Gregorian epoch,
+  // (1582-10-15 00:00).  JSNumbers aren't precise enough for this, so
+  // time is handled internally as 'msecs' (integer milliseconds) and 'nsecs'
+  // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00.
+
+
+  var msecs = options.msecs !== undefined ? options.msecs : Date.now(); // Per 4.2.1.2, use count of uuid's generated during the current clock
+  // cycle to simulate higher resolution clock
+
+  var nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; // Time since last uuid creation (in msecs)
+
+  var dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; // Per 4.2.1.2, Bump clockseq on clock regression
+
+  if (dt < 0 && options.clockseq === undefined) {
+    clockseq = clockseq + 1 & 0x3fff;
+  } // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new
+  // time interval
+
+
+  if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) {
+    nsecs = 0;
+  } // Per 4.2.1.2 Throw error if too many uuids are requested
+
+
+  if (nsecs >= 10000) {
+    throw new Error("uuid.v1(): Can't create more than 10M uuids/sec");
+  }
+
+  _lastMSecs = msecs;
+  _lastNSecs = nsecs;
+  _clockseq = clockseq; // Per 4.1.4 - Convert from unix epoch to Gregorian epoch
+
+  msecs += 12219292800000; // `time_low`
+
+  var tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000;
+  b[i++] = tl >>> 24 & 0xff;
+  b[i++] = tl >>> 16 & 0xff;
+  b[i++] = tl >>> 8 & 0xff;
+  b[i++] = tl & 0xff; // `time_mid`
+
+  var tmh = msecs / 0x100000000 * 10000 & 0xfffffff;
+  b[i++] = tmh >>> 8 & 0xff;
+  b[i++] = tmh & 0xff; // `time_high_and_version`
+
+  b[i++] = tmh >>> 24 & 0xf | 0x10; // include version
+
+  b[i++] = tmh >>> 16 & 0xff; // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant)
+
+  b[i++] = clockseq >>> 8 | 0x80; // `clock_seq_low`
+
+  b[i++] = clockseq & 0xff; // `node`
+
+  for (var n = 0; n < 6; ++n) {
+    b[i + n] = node[n];
+  }
+
+  return buf || stringify(b);
+}
+
+export default v1;

backend/node_modules/uuid/dist/esm-browser/v3.js

@@ -0,0 +1,4 @@
+import v35 from './v35.js';
+import md5 from './md5.js';
+var v3 = v35('v3', 0x30, md5);
+export default v3;

backend/node_modules/uuid/dist/esm-browser/v35.js

@@ -0,0 +1,64 @@
+import stringify from './stringify.js';
+import parse from './parse.js';
+
+function stringToBytes(str) {
+  str = unescape(encodeURIComponent(str)); // UTF8 escape
+
+  var bytes = [];
+
+  for (var i = 0; i < str.length; ++i) {
+    bytes.push(str.charCodeAt(i));
+  }
+
+  return bytes;
+}
+
+export var DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
+export var URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';
+export default function (name, version, hashfunc) {
+  function generateUUID(value, namespace, buf, offset) {
+    if (typeof value === 'string') {
+      value = stringToBytes(value);
+    }
+
+    if (typeof namespace === 'string') {
+      namespace = parse(namespace);
+    }
+
+    if (namespace.length !== 16) {
+      throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)');
+    } // Compute hash of namespace and value, Per 4.3
+    // Future: Use spread syntax when supported on all platforms, e.g. `bytes =
+    // hashfunc([...namespace, ... value])`
+
+
+    var bytes = new Uint8Array(16 + value.length);
+    bytes.set(namespace);
+    bytes.set(value, namespace.length);
+    bytes = hashfunc(bytes);
+    bytes[6] = bytes[6] & 0x0f | version;
+    bytes[8] = bytes[8] & 0x3f | 0x80;
+
+    if (buf) {
+      offset = offset || 0;
+
+      for (var i = 0; i < 16; ++i) {
+        buf[offset + i] = bytes[i];
+      }
+
+      return buf;
+    }
+
+    return stringify(bytes);
+  } // Function#name is not settable on some platforms (#270)
+
+
+  try {
+    generateUUID.name = name; // eslint-disable-next-line no-empty
+  } catch (err) {} // For CommonJS default export support
+
+
+  generateUUID.DNS = DNS;
+  generateUUID.URL = URL;
+  return generateUUID;
+}

backend/node_modules/uuid/dist/esm-browser/v4.js

@@ -0,0 +1,24 @@
+import rng from './rng.js';
+import stringify from './stringify.js';
+
+function v4(options, buf, offset) {
+  options = options || {};
+  var rnds = options.random || (options.rng || rng)(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
+
+  rnds[6] = rnds[6] & 0x0f | 0x40;
+  rnds[8] = rnds[8] & 0x3f | 0x80; // Copy bytes to buffer, if provided
+
+  if (buf) {
+    offset = offset || 0;
+
+    for (var i = 0; i < 16; ++i) {
+      buf[offset + i] = rnds[i];
+    }
+
+    return buf;
+  }
+
+  return stringify(rnds);
+}
+
+export default v4;

backend/node_modules/uuid/dist/esm-browser/v5.js

@@ -0,0 +1,4 @@
+import v35 from './v35.js';
+import sha1 from './sha1.js';
+var v5 = v35('v5', 0x50, sha1);
+export default v5;

backend/node_modules/uuid/dist/esm-browser/validate.js

@@ -0,0 +1,7 @@
+import REGEX from './regex.js';
+
+function validate(uuid) {
+  return typeof uuid === 'string' && REGEX.test(uuid);
+}
+
+export default validate;

backend/node_modules/uuid/dist/esm-browser/version.js

@@ -0,0 +1,11 @@
+import validate from './validate.js';
+
+function version(uuid) {
+  if (!validate(uuid)) {
+    throw TypeError('Invalid UUID');
+  }
+
+  return parseInt(uuid.substr(14, 1), 16);
+}
+
+export default version;

backend/node_modules/uuid/dist/esm-node/index.js

@@ -0,0 +1,9 @@
+export { default as v1 } from './v1.js';
+export { default as v3 } from './v3.js';
+export { default as v4 } from './v4.js';
+export { default as v5 } from './v5.js';
+export { default as NIL } from './nil.js';
+export { default as version } from './version.js';
+export { default as validate } from './validate.js';
+export { default as stringify } from './stringify.js';
+export { default as parse } from './parse.js';

backend/node_modules/uuid/dist/esm-node/md5.js

@@ -0,0 +1,13 @@
+import crypto from 'crypto';
+
+function md5(bytes) {
+  if (Array.isArray(bytes)) {
+    bytes = Buffer.from(bytes);
+  } else if (typeof bytes === 'string') {
+    bytes = Buffer.from(bytes, 'utf8');
+  }
+
+  return crypto.createHash('md5').update(bytes).digest();
+}
+
+export default md5;

backend/node_modules/uuid/dist/esm-node/nil.js

@@ -0,0 +1 @@
+export default '00000000-0000-0000-0000-000000000000';

backend/node_modules/uuid/dist/esm-node/parse.js

@@ -0,0 +1,35 @@
+import validate from './validate.js';
+
+function parse(uuid) {
+  if (!validate(uuid)) {
+    throw TypeError('Invalid UUID');
+  }
+
+  let v;
+  const arr = new Uint8Array(16); // Parse ########-....-....-....-............
+
+  arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24;
+  arr[1] = v >>> 16 & 0xff;
+  arr[2] = v >>> 8 & 0xff;
+  arr[3] = v & 0xff; // Parse ........-####-....-....-............
+
+  arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8;
+  arr[5] = v & 0xff; // Parse ........-....-####-....-............
+
+  arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8;
+  arr[7] = v & 0xff; // Parse ........-....-....-####-............
+
+  arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8;
+  arr[9] = v & 0xff; // Parse ........-....-....-....-############
+  // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes)
+
+  arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff;
+  arr[11] = v / 0x100000000 & 0xff;
+  arr[12] = v >>> 24 & 0xff;
+  arr[13] = v >>> 16 & 0xff;
+  arr[14] = v >>> 8 & 0xff;
+  arr[15] = v & 0xff;
+  return arr;
+}
+
+export default parse;

backend/node_modules/uuid/dist/esm-node/regex.js

@@ -0,0 +1 @@
+export default /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000)$/i;

backend/node_modules/uuid/dist/esm-node/rng.js

@@ -0,0 +1,12 @@
+import crypto from 'crypto';
+const rnds8Pool = new Uint8Array(256); // # of random values to pre-allocate
+
+let poolPtr = rnds8Pool.length;
+export default function rng() {
+  if (poolPtr > rnds8Pool.length - 16) {
+    crypto.randomFillSync(rnds8Pool);
+    poolPtr = 0;
+  }
+
+  return rnds8Pool.slice(poolPtr, poolPtr += 16);
+}

backend/node_modules/uuid/dist/esm-node/sha1.js

@@ -0,0 +1,13 @@
+import crypto from 'crypto';
+
+function sha1(bytes) {
+  if (Array.isArray(bytes)) {
+    bytes = Buffer.from(bytes);
+  } else if (typeof bytes === 'string') {
+    bytes = Buffer.from(bytes, 'utf8');
+  }
+
+  return crypto.createHash('sha1').update(bytes).digest();
+}
+
+export default sha1;

backend/node_modules/uuid/dist/esm-node/v1.js

@@ -0,0 +1,95 @@
+import rng from './rng.js';
+import stringify from './stringify.js'; // **`v1()` - Generate time-based UUID**
+//
+// Inspired by https://github.com/LiosK/UUID.js
+// and http://docs.python.org/library/uuid.html
+
+let _nodeId;
+
+let _clockseq; // Previous uuid creation time
+
+
+let _lastMSecs = 0;
+let _lastNSecs = 0; // See https://github.com/uuidjs/uuid for API details
+
+function v1(options, buf, offset) {
+  let i = buf && offset || 0;
+  const b = buf || new Array(16);
+  options = options || {};
+  let node = options.node || _nodeId;
+  let clockseq = options.clockseq !== undefined ? options.clockseq : _clockseq; // node and clockseq need to be initialized to random values if they're not
+  // specified.  We do this lazily to minimize issues related to insufficient
+  // system entropy.  See #189
+
+  if (node == null || clockseq == null) {
+    const seedBytes = options.random || (options.rng || rng)();
+
+    if (node == null) {
+      // Per 4.5, create and 48-bit node id, (47 random bits + multicast bit = 1)
+      node = _nodeId = [seedBytes[0] | 0x01, seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]];
+    }
+
+    if (clockseq == null) {
+      // Per 4.2.2, randomize (14 bit) clockseq
+      clockseq = _clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff;
+    }
+  } // UUID timestamps are 100 nano-second units since the Gregorian epoch,
+  // (1582-10-15 00:00).  JSNumbers aren't precise enough for this, so
+  // time is handled internally as 'msecs' (integer milliseconds) and 'nsecs'
+  // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00.
+
+
+  let msecs = options.msecs !== undefined ? options.msecs : Date.now(); // Per 4.2.1.2, use count of uuid's generated during the current clock
+  // cycle to simulate higher resolution clock
+
+  let nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; // Time since last uuid creation (in msecs)
+
+  const dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; // Per 4.2.1.2, Bump clockseq on clock regression
+
+  if (dt < 0 && options.clockseq === undefined) {
+    clockseq = clockseq + 1 & 0x3fff;
+  } // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new
+  // time interval
+
+
+  if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) {
+    nsecs = 0;
+  } // Per 4.2.1.2 Throw error if too many uuids are requested
+
+
+  if (nsecs >= 10000) {
+    throw new Error("uuid.v1(): Can't create more than 10M uuids/sec");
+  }
+
+  _lastMSecs = msecs;
+  _lastNSecs = nsecs;
+  _clockseq = clockseq; // Per 4.1.4 - Convert from unix epoch to Gregorian epoch
+
+  msecs += 12219292800000; // `time_low`
+
+  const tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000;
+  b[i++] = tl >>> 24 & 0xff;
+  b[i++] = tl >>> 16 & 0xff;
+  b[i++] = tl >>> 8 & 0xff;
+  b[i++] = tl & 0xff; // `time_mid`
+
+  const tmh = msecs / 0x100000000 * 10000 & 0xfffffff;
+  b[i++] = tmh >>> 8 & 0xff;
+  b[i++] = tmh & 0xff; // `time_high_and_version`
+
+  b[i++] = tmh >>> 24 & 0xf | 0x10; // include version
+
+  b[i++] = tmh >>> 16 & 0xff; // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant)
+
+  b[i++] = clockseq >>> 8 | 0x80; // `clock_seq_low`
+
+  b[i++] = clockseq & 0xff; // `node`
+
+  for (let n = 0; n < 6; ++n) {
+    b[i + n] = node[n];
+  }
+
+  return buf || stringify(b);
+}
+
+export default v1;

backend/node_modules/uuid/dist/esm-node/v3.js

@@ -0,0 +1,4 @@
+import v35 from './v35.js';
+import md5 from './md5.js';
+const v3 = v35('v3', 0x30, md5);
+export default v3;

backend/node_modules/uuid/dist/esm-node/v35.js

@@ -0,0 +1,64 @@
+import stringify from './stringify.js';
+import parse from './parse.js';
+
+function stringToBytes(str) {
+  str = unescape(encodeURIComponent(str)); // UTF8 escape
+
+  const bytes = [];
+
+  for (let i = 0; i < str.length; ++i) {
+    bytes.push(str.charCodeAt(i));
+  }
+
+  return bytes;
+}
+
+export const DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
+export const URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';
+export default function (name, version, hashfunc) {
+  function generateUUID(value, namespace, buf, offset) {
+    if (typeof value === 'string') {
+      value = stringToBytes(value);
+    }
+
+    if (typeof namespace === 'string') {
+      namespace = parse(namespace);
+    }
+
+    if (namespace.length !== 16) {
+      throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)');
+    } // Compute hash of namespace and value, Per 4.3
+    // Future: Use spread syntax when supported on all platforms, e.g. `bytes =
+    // hashfunc([...namespace, ... value])`
+
+
+    let bytes = new Uint8Array(16 + value.length);
+    bytes.set(namespace);
+    bytes.set(value, namespace.length);
+    bytes = hashfunc(bytes);
+    bytes[6] = bytes[6] & 0x0f | version;
+    bytes[8] = bytes[8] & 0x3f | 0x80;
+
+    if (buf) {
+      offset = offset || 0;
+
+      for (let i = 0; i < 16; ++i) {
+        buf[offset + i] = bytes[i];
+      }
+
+      return buf;
+    }
+
+    return stringify(bytes);
+  } // Function#name is not settable on some platforms (#270)
+
+
+  try {
+    generateUUID.name = name; // eslint-disable-next-line no-empty
+  } catch (err) {} // For CommonJS default export support
+
+
+  generateUUID.DNS = DNS;
+  generateUUID.URL = URL;
+  return generateUUID;
+}

backend/node_modules/uuid/dist/esm-node/v4.js

@@ -0,0 +1,24 @@
+import rng from './rng.js';
+import stringify from './stringify.js';
+
+function v4(options, buf, offset) {
+  options = options || {};
+  const rnds = options.random || (options.rng || rng)(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
+
+  rnds[6] = rnds[6] & 0x0f | 0x40;
+  rnds[8] = rnds[8] & 0x3f | 0x80; // Copy bytes to buffer, if provided
+
+  if (buf) {
+    offset = offset || 0;
+
+    for (let i = 0; i < 16; ++i) {
+      buf[offset + i] = rnds[i];
+    }
+
+    return buf;
+  }
+
+  return stringify(rnds);
+}
+
+export default v4;

backend/node_modules/uuid/dist/esm-node/v5.js

@@ -0,0 +1,4 @@
+import v35 from './v35.js';
+import sha1 from './sha1.js';
+const v5 = v35('v5', 0x50, sha1);
+export default v5;

backend/node_modules/uuid/dist/esm-node/validate.js

@@ -0,0 +1,7 @@
+import REGEX from './regex.js';
+
+function validate(uuid) {
+  return typeof uuid === 'string' && REGEX.test(uuid);
+}
+
+export default validate;

backend/node_modules/uuid/dist/esm-node/version.js

@@ -0,0 +1,11 @@
+import validate from './validate.js';
+
+function version(uuid) {
+  if (!validate(uuid)) {
+    throw TypeError('Invalid UUID');
+  }
+
+  return parseInt(uuid.substr(14, 1), 16);
+}
+
+export default version;

backend/node_modules/uuid/dist/index.js

@@ -0,0 +1,79 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+Object.defineProperty(exports, "v1", {
+  enumerable: true,
+  get: function () {
+    return _v.default;
+  }
+});
+Object.defineProperty(exports, "v3", {
+  enumerable: true,
+  get: function () {
+    return _v2.default;
+  }
+});
+Object.defineProperty(exports, "v4", {
+  enumerable: true,
+  get: function () {
+    return _v3.default;
+  }
+});
+Object.defineProperty(exports, "v5", {
+  enumerable: true,
+  get: function () {
+    return _v4.default;
+  }
+});
+Object.defineProperty(exports, "NIL", {
+  enumerable: true,
+  get: function () {
+    return _nil.default;
+  }
+});
+Object.defineProperty(exports, "version", {
+  enumerable: true,
+  get: function () {
+    return _version.default;
+  }
+});
+Object.defineProperty(exports, "validate", {
+  enumerable: true,
+  get: function () {
+    return _validate.default;
+  }
+});
+Object.defineProperty(exports, "stringify", {
+  enumerable: true,
+  get: function () {
+    return _stringify.default;
+  }
+});
+Object.defineProperty(exports, "parse", {
+  enumerable: true,
+  get: function () {
+    return _parse.default;
+  }
+});
+
+var _v = _interopRequireDefault(require("./v1.js"));
+
+var _v2 = _interopRequireDefault(require("./v3.js"));
+
+var _v3 = _interopRequireDefault(require("./v4.js"));
+
+var _v4 = _interopRequireDefault(require("./v5.js"));
+
+var _nil = _interopRequireDefault(require("./nil.js"));
+
+var _version = _interopRequireDefault(require("./version.js"));
+
+var _validate = _interopRequireDefault(require("./validate.js"));
+
+var _stringify = _interopRequireDefault(require("./stringify.js"));
+
+var _parse = _interopRequireDefault(require("./parse.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

backend/node_modules/uuid/dist/md5-browser.js

@@ -0,0 +1,223 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+/*
+ * Browser-compatible JavaScript MD5
+ *
+ * Modification of JavaScript MD5
+ * https://github.com/blueimp/JavaScript-MD5
+ *
+ * Copyright 2011, Sebastian Tschan
+ * https://blueimp.net
+ *
+ * Licensed under the MIT license:
+ * https://opensource.org/licenses/MIT
+ *
+ * Based on
+ * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
+ * Digest Algorithm, as defined in RFC 1321.
+ * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for more info.
+ */
+function md5(bytes) {
+  if (typeof bytes === 'string') {
+    const msg = unescape(encodeURIComponent(bytes)); // UTF8 escape
+
+    bytes = new Uint8Array(msg.length);
+
+    for (let i = 0; i < msg.length; ++i) {
+      bytes[i] = msg.charCodeAt(i);
+    }
+  }
+
+  return md5ToHexEncodedArray(wordsToMd5(bytesToWords(bytes), bytes.length * 8));
+}
+/*
+ * Convert an array of little-endian words to an array of bytes
+ */
+
+
+function md5ToHexEncodedArray(input) {
+  const output = [];
+  const length32 = input.length * 32;
+  const hexTab = '0123456789abcdef';
+
+  for (let i = 0; i < length32; i += 8) {
+    const x = input[i >> 5] >>> i % 32 & 0xff;
+    const hex = parseInt(hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f), 16);
+    output.push(hex);
+  }
+
+  return output;
+}
+/**
+ * Calculate output length with padding and bit length
+ */
+
+
+function getOutputLength(inputLength8) {
+  return (inputLength8 + 64 >>> 9 << 4) + 14 + 1;
+}
+/*
+ * Calculate the MD5 of an array of little-endian words, and a bit length.
+ */
+
+
+function wordsToMd5(x, len) {
+  /* append padding */
+  x[len >> 5] |= 0x80 << len % 32;
+  x[getOutputLength(len) - 1] = len;
+  let a = 1732584193;
+  let b = -271733879;
+  let c = -1732584194;
+  let d = 271733878;
+
+  for (let i = 0; i < x.length; i += 16) {
+    const olda = a;
+    const oldb = b;
+    const oldc = c;
+    const oldd = d;
+    a = md5ff(a, b, c, d, x[i], 7, -680876936);
+    d = md5ff(d, a, b, c, x[i + 1], 12, -389564586);
+    c = md5ff(c, d, a, b, x[i + 2], 17, 606105819);
+    b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330);
+    a = md5ff(a, b, c, d, x[i + 4], 7, -176418897);
+    d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426);
+    c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341);
+    b = md5ff(b, c, d, a, x[i + 7], 22, -45705983);
+    a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416);
+    d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417);
+    c = md5ff(c, d, a, b, x[i + 10], 17, -42063);
+    b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162);
+    a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682);
+    d = md5ff(d, a, b, c, x[i + 13], 12, -40341101);
+    c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290);
+    b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329);
+    a = md5gg(a, b, c, d, x[i + 1], 5, -165796510);
+    d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632);
+    c = md5gg(c, d, a, b, x[i + 11], 14, 643717713);
+    b = md5gg(b, c, d, a, x[i], 20, -373897302);
+    a = md5gg(a, b, c, d, x[i + 5], 5, -701558691);
+    d = md5gg(d, a, b, c, x[i + 10], 9, 38016083);
+    c = md5gg(c, d, a, b, x[i + 15], 14, -660478335);
+    b = md5gg(b, c, d, a, x[i + 4], 20, -405537848);
+    a = md5gg(a, b, c, d, x[i + 9], 5, 568446438);
+    d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690);
+    c = md5gg(c, d, a, b, x[i + 3], 14, -187363961);
+    b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501);
+    a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467);
+    d = md5gg(d, a, b, c, x[i + 2], 9, -51403784);
+    c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473);
+    b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734);
+    a = md5hh(a, b, c, d, x[i + 5], 4, -378558);
+    d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463);
+    c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562);
+    b = md5hh(b, c, d, a, x[i + 14], 23, -35309556);
+    a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060);
+    d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353);
+    c = md5hh(c, d, a, b, x[i + 7], 16, -155497632);
+    b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640);
+    a = md5hh(a, b, c, d, x[i + 13], 4, 681279174);
+    d = md5hh(d, a, b, c, x[i], 11, -358537222);
+    c = md5hh(c, d, a, b, x[i + 3], 16, -722521979);
+    b = md5hh(b, c, d, a, x[i + 6], 23, 76029189);
+    a = md5hh(a, b, c, d, x[i + 9], 4, -640364487);
+    d = md5hh(d, a, b, c, x[i + 12], 11, -421815835);
+    c = md5hh(c, d, a, b, x[i + 15], 16, 530742520);
+    b = md5hh(b, c, d, a, x[i + 2], 23, -995338651);
+    a = md5ii(a, b, c, d, x[i], 6, -198630844);
+    d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415);
+    c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905);
+    b = md5ii(b, c, d, a, x[i + 5], 21, -57434055);
+    a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571);
+    d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606);
+    c = md5ii(c, d, a, b, x[i + 10], 15, -1051523);
+    b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799);
+    a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359);
+    d = md5ii(d, a, b, c, x[i + 15], 10, -30611744);
+    c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380);
+    b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649);
+    a = md5ii(a, b, c, d, x[i + 4], 6, -145523070);
+    d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379);
+    c = md5ii(c, d, a, b, x[i + 2], 15, 718787259);
+    b = md5ii(b, c, d, a, x[i + 9], 21, -343485551);
+    a = safeAdd(a, olda);
+    b = safeAdd(b, oldb);
+    c = safeAdd(c, oldc);
+    d = safeAdd(d, oldd);
+  }
+
+  return [a, b, c, d];
+}
+/*
+ * Convert an array bytes to an array of little-endian words
+ * Characters >255 have their high-byte silently ignored.
+ */
+
+
+function bytesToWords(input) {
+  if (input.length === 0) {
+    return [];
+  }
+
+  const length8 = input.length * 8;
+  const output = new Uint32Array(getOutputLength(length8));
+
+  for (let i = 0; i < length8; i += 8) {
+    output[i >> 5] |= (input[i / 8] & 0xff) << i % 32;
+  }
+
+  return output;
+}
+/*
+ * Add integers, wrapping at 2^32. This uses 16-bit operations internally
+ * to work around bugs in some JS interpreters.
+ */
+
+
+function safeAdd(x, y) {
+  const lsw = (x & 0xffff) + (y & 0xffff);
+  const msw = (x >> 16) + (y >> 16) + (lsw >> 16);
+  return msw << 16 | lsw & 0xffff;
+}
+/*
+ * Bitwise rotate a 32-bit number to the left.
+ */
+
+
+function bitRotateLeft(num, cnt) {
+  return num << cnt | num >>> 32 - cnt;
+}
+/*
+ * These functions implement the four basic operations the algorithm uses.
+ */
+
+
+function md5cmn(q, a, b, x, s, t) {
+  return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b);
+}
+
+function md5ff(a, b, c, d, x, s, t) {
+  return md5cmn(b & c | ~b & d, a, b, x, s, t);
+}
+
+function md5gg(a, b, c, d, x, s, t) {
+  return md5cmn(b & d | c & ~d, a, b, x, s, t);
+}
+
+function md5hh(a, b, c, d, x, s, t) {
+  return md5cmn(b ^ c ^ d, a, b, x, s, t);
+}
+
+function md5ii(a, b, c, d, x, s, t) {
+  return md5cmn(c ^ (b | ~d), a, b, x, s, t);
+}
+
+var _default = md5;
+exports.default = _default;

backend/node_modules/uuid/dist/md5.js

@@ -0,0 +1,23 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _crypto = _interopRequireDefault(require("crypto"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function md5(bytes) {
+  if (Array.isArray(bytes)) {
+    bytes = Buffer.from(bytes);
+  } else if (typeof bytes === 'string') {
+    bytes = Buffer.from(bytes, 'utf8');
+  }
+
+  return _crypto.default.createHash('md5').update(bytes).digest();
+}
+
+var _default = md5;
+exports.default = _default;

backend/node_modules/uuid/dist/nil.js

@@ -0,0 +1,8 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _default = '00000000-0000-0000-0000-000000000000';
+exports.default = _default;

backend/node_modules/uuid/dist/parse.js

@@ -0,0 +1,45 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _validate = _interopRequireDefault(require("./validate.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function parse(uuid) {
+  if (!(0, _validate.default)(uuid)) {
+    throw TypeError('Invalid UUID');
+  }
+
+  let v;
+  const arr = new Uint8Array(16); // Parse ########-....-....-....-............
+
+  arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24;
+  arr[1] = v >>> 16 & 0xff;
+  arr[2] = v >>> 8 & 0xff;
+  arr[3] = v & 0xff; // Parse ........-####-....-....-............
+
+  arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8;
+  arr[5] = v & 0xff; // Parse ........-....-####-....-............
+
+  arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8;
+  arr[7] = v & 0xff; // Parse ........-....-....-####-............
+
+  arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8;
+  arr[9] = v & 0xff; // Parse ........-....-....-....-############
+  // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes)
+
+  arr[10] = (v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000 & 0xff;
+  arr[11] = v / 0x100000000 & 0xff;
+  arr[12] = v >>> 24 & 0xff;
+  arr[13] = v >>> 16 & 0xff;
+  arr[14] = v >>> 8 & 0xff;
+  arr[15] = v & 0xff;
+  return arr;
+}
+
+var _default = parse;
+exports.default = _default;

backend/node_modules/uuid/dist/regex.js

@@ -0,0 +1,8 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _default = /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000)$/i;
+exports.default = _default;

backend/node_modules/uuid/dist/rng-browser.js

@@ -0,0 +1,26 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = rng;
+// Unique ID creation requires a high quality random # generator. In the browser we therefore
+// require the crypto API and do not support built-in fallback to lower quality random number
+// generators (like Math.random()).
+let getRandomValues;
+const rnds8 = new Uint8Array(16);
+
+function rng() {
+  // lazy load so that environments that need to polyfill have a chance to do so
+  if (!getRandomValues) {
+    // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation. Also,
+    // find the complete implementation of crypto (msCrypto) on IE11.
+    getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto) || typeof msCrypto !== 'undefined' && typeof msCrypto.getRandomValues === 'function' && msCrypto.getRandomValues.bind(msCrypto);
+
+    if (!getRandomValues) {
+      throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported');
+    }
+  }
+
+  return getRandomValues(rnds8);
+}

backend/node_modules/uuid/dist/rng.js

@@ -0,0 +1,24 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = rng;
+
+var _crypto = _interopRequireDefault(require("crypto"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+const rnds8Pool = new Uint8Array(256); // # of random values to pre-allocate
+
+let poolPtr = rnds8Pool.length;
+
+function rng() {
+  if (poolPtr > rnds8Pool.length - 16) {
+    _crypto.default.randomFillSync(rnds8Pool);
+
+    poolPtr = 0;
+  }
+
+  return rnds8Pool.slice(poolPtr, poolPtr += 16);
+}

backend/node_modules/uuid/dist/sha1-browser.js

@@ -0,0 +1,104 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+// Adapted from Chris Veness' SHA1 code at
+// http://www.movable-type.co.uk/scripts/sha1.html
+function f(s, x, y, z) {
+  switch (s) {
+    case 0:
+      return x & y ^ ~x & z;
+
+    case 1:
+      return x ^ y ^ z;
+
+    case 2:
+      return x & y ^ x & z ^ y & z;
+
+    case 3:
+      return x ^ y ^ z;
+  }
+}
+
+function ROTL(x, n) {
+  return x << n | x >>> 32 - n;
+}
+
+function sha1(bytes) {
+  const K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6];
+  const H = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0];
+
+  if (typeof bytes === 'string') {
+    const msg = unescape(encodeURIComponent(bytes)); // UTF8 escape
+
+    bytes = [];
+
+    for (let i = 0; i < msg.length; ++i) {
+      bytes.push(msg.charCodeAt(i));
+    }
+  } else if (!Array.isArray(bytes)) {
+    // Convert Array-like to Array
+    bytes = Array.prototype.slice.call(bytes);
+  }
+
+  bytes.push(0x80);
+  const l = bytes.length / 4 + 2;
+  const N = Math.ceil(l / 16);
+  const M = new Array(N);
+
+  for (let i = 0; i < N; ++i) {
+    const arr = new Uint32Array(16);
+
+    for (let j = 0; j < 16; ++j) {
+      arr[j] = bytes[i * 64 + j * 4] << 24 | bytes[i * 64 + j * 4 + 1] << 16 | bytes[i * 64 + j * 4 + 2] << 8 | bytes[i * 64 + j * 4 + 3];
+    }
+
+    M[i] = arr;
+  }
+
+  M[N - 1][14] = (bytes.length - 1) * 8 / Math.pow(2, 32);
+  M[N - 1][14] = Math.floor(M[N - 1][14]);
+  M[N - 1][15] = (bytes.length - 1) * 8 & 0xffffffff;
+
+  for (let i = 0; i < N; ++i) {
+    const W = new Uint32Array(80);
+
+    for (let t = 0; t < 16; ++t) {
+      W[t] = M[i][t];
+    }
+
+    for (let t = 16; t < 80; ++t) {
+      W[t] = ROTL(W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16], 1);
+    }
+
+    let a = H[0];
+    let b = H[1];
+    let c = H[2];
+    let d = H[3];
+    let e = H[4];
+
+    for (let t = 0; t < 80; ++t) {
+      const s = Math.floor(t / 20);
+      const T = ROTL(a, 5) + f(s, b, c, d) + e + K[s] + W[t] >>> 0;
+      e = d;
+      d = c;
+      c = ROTL(b, 30) >>> 0;
+      b = a;
+      a = T;
+    }
+
+    H[0] = H[0] + a >>> 0;
+    H[1] = H[1] + b >>> 0;
+    H[2] = H[2] + c >>> 0;
+    H[3] = H[3] + d >>> 0;
+    H[4] = H[4] + e >>> 0;
+  }
+
+  return [H[0] >> 24 & 0xff, H[0] >> 16 & 0xff, H[0] >> 8 & 0xff, H[0] & 0xff, H[1] >> 24 & 0xff, H[1] >> 16 & 0xff, H[1] >> 8 & 0xff, H[1] & 0xff, H[2] >> 24 & 0xff, H[2] >> 16 & 0xff, H[2] >> 8 & 0xff, H[2] & 0xff, H[3] >> 24 & 0xff, H[3] >> 16 & 0xff, H[3] >> 8 & 0xff, H[3] & 0xff, H[4] >> 24 & 0xff, H[4] >> 16 & 0xff, H[4] >> 8 & 0xff, H[4] & 0xff];
+}
+
+var _default = sha1;
+exports.default = _default;

backend/node_modules/uuid/dist/sha1.js

@@ -0,0 +1,23 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _crypto = _interopRequireDefault(require("crypto"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function sha1(bytes) {
+  if (Array.isArray(bytes)) {
+    bytes = Buffer.from(bytes);
+  } else if (typeof bytes === 'string') {
+    bytes = Buffer.from(bytes, 'utf8');
+  }
+
+  return _crypto.default.createHash('sha1').update(bytes).digest();
+}
+
+var _default = sha1;
+exports.default = _default;

backend/node_modules/uuid/dist/umd/uuidNIL.min.js

@@ -0,0 +1 @@
+!function(e,n){"object"==typeof exports&&"undefined"!=typeof module?module.exports=n():"function"==typeof define&&define.amd?define(n):(e="undefined"!=typeof globalThis?globalThis:e||self).uuidNIL=n()}(this,(function(){"use strict";return"00000000-0000-0000-0000-000000000000"}));

backend/node_modules/uuid/dist/umd/uuidValidate.min.js

@@ -0,0 +1 @@
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).uuidValidate=t()}(this,(function(){"use strict";var e=/^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000)$/i;return function(t){return"string"==typeof t&&e.test(t)}}));

backend/node_modules/uuid/dist/uuid-bin.js

@@ -0,0 +1,85 @@
+"use strict";
+
+var _assert = _interopRequireDefault(require("assert"));
+
+var _v = _interopRequireDefault(require("./v1.js"));
+
+var _v2 = _interopRequireDefault(require("./v3.js"));
+
+var _v3 = _interopRequireDefault(require("./v4.js"));
+
+var _v4 = _interopRequireDefault(require("./v5.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function usage() {
+  console.log('Usage:');
+  console.log('  uuid');
+  console.log('  uuid v1');
+  console.log('  uuid v3 <name> <namespace uuid>');
+  console.log('  uuid v4');
+  console.log('  uuid v5 <name> <namespace uuid>');
+  console.log('  uuid --help');
+  console.log('\nNote: <namespace uuid> may be "URL" or "DNS" to use the corresponding UUIDs defined by RFC4122');
+}
+
+const args = process.argv.slice(2);
+
+if (args.indexOf('--help') >= 0) {
+  usage();
+  process.exit(0);
+}
+
+const version = args.shift() || 'v4';
+
+switch (version) {
+  case 'v1':
+    console.log((0, _v.default)());
+    break;
+
+  case 'v3':
+    {
+      const name = args.shift();
+      let namespace = args.shift();
+      (0, _assert.default)(name != null, 'v3 name not specified');
+      (0, _assert.default)(namespace != null, 'v3 namespace not specified');
+
+      if (namespace === 'URL') {
+        namespace = _v2.default.URL;
+      }
+
+      if (namespace === 'DNS') {
+        namespace = _v2.default.DNS;
+      }
+
+      console.log((0, _v2.default)(name, namespace));
+      break;
+    }
+
+  case 'v4':
+    console.log((0, _v3.default)());
+    break;
+
+  case 'v5':
+    {
+      const name = args.shift();
+      let namespace = args.shift();
+      (0, _assert.default)(name != null, 'v5 name not specified');
+      (0, _assert.default)(namespace != null, 'v5 namespace not specified');
+
+      if (namespace === 'URL') {
+        namespace = _v4.default.URL;
+      }
+
+      if (namespace === 'DNS') {
+        namespace = _v4.default.DNS;
+      }
+
+      console.log((0, _v4.default)(name, namespace));
+      break;
+    }
+
+  default:
+    usage();
+    process.exit(1);
+}

backend/node_modules/uuid/dist/v1.js

@@ -0,0 +1,107 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _rng = _interopRequireDefault(require("./rng.js"));
+
+var _stringify = _interopRequireDefault(require("./stringify.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+// **`v1()` - Generate time-based UUID**
+//
+// Inspired by https://github.com/LiosK/UUID.js
+// and http://docs.python.org/library/uuid.html
+let _nodeId;
+
+let _clockseq; // Previous uuid creation time
+
+
+let _lastMSecs = 0;
+let _lastNSecs = 0; // See https://github.com/uuidjs/uuid for API details
+
+function v1(options, buf, offset) {
+  let i = buf && offset || 0;
+  const b = buf || new Array(16);
+  options = options || {};
+  let node = options.node || _nodeId;
+  let clockseq = options.clockseq !== undefined ? options.clockseq : _clockseq; // node and clockseq need to be initialized to random values if they're not
+  // specified.  We do this lazily to minimize issues related to insufficient
+  // system entropy.  See #189
+
+  if (node == null || clockseq == null) {
+    const seedBytes = options.random || (options.rng || _rng.default)();
+
+    if (node == null) {
+      // Per 4.5, create and 48-bit node id, (47 random bits + multicast bit = 1)
+      node = _nodeId = [seedBytes[0] | 0x01, seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]];
+    }
+
+    if (clockseq == null) {
+      // Per 4.2.2, randomize (14 bit) clockseq
+      clockseq = _clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff;
+    }
+  } // UUID timestamps are 100 nano-second units since the Gregorian epoch,
+  // (1582-10-15 00:00).  JSNumbers aren't precise enough for this, so
+  // time is handled internally as 'msecs' (integer milliseconds) and 'nsecs'
+  // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00.
+
+
+  let msecs = options.msecs !== undefined ? options.msecs : Date.now(); // Per 4.2.1.2, use count of uuid's generated during the current clock
+  // cycle to simulate higher resolution clock
+
+  let nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; // Time since last uuid creation (in msecs)
+
+  const dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; // Per 4.2.1.2, Bump clockseq on clock regression
+
+  if (dt < 0 && options.clockseq === undefined) {
+    clockseq = clockseq + 1 & 0x3fff;
+  } // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new
+  // time interval
+
+
+  if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) {
+    nsecs = 0;
+  } // Per 4.2.1.2 Throw error if too many uuids are requested
+
+
+  if (nsecs >= 10000) {
+    throw new Error("uuid.v1(): Can't create more than 10M uuids/sec");
+  }
+
+  _lastMSecs = msecs;
+  _lastNSecs = nsecs;
+  _clockseq = clockseq; // Per 4.1.4 - Convert from unix epoch to Gregorian epoch
+
+  msecs += 12219292800000; // `time_low`
+
+  const tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000;
+  b[i++] = tl >>> 24 & 0xff;
+  b[i++] = tl >>> 16 & 0xff;
+  b[i++] = tl >>> 8 & 0xff;
+  b[i++] = tl & 0xff; // `time_mid`
+
+  const tmh = msecs / 0x100000000 * 10000 & 0xfffffff;
+  b[i++] = tmh >>> 8 & 0xff;
+  b[i++] = tmh & 0xff; // `time_high_and_version`
+
+  b[i++] = tmh >>> 24 & 0xf | 0x10; // include version
+
+  b[i++] = tmh >>> 16 & 0xff; // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant)
+
+  b[i++] = clockseq >>> 8 | 0x80; // `clock_seq_low`
+
+  b[i++] = clockseq & 0xff; // `node`
+
+  for (let n = 0; n < 6; ++n) {
+    b[i + n] = node[n];
+  }
+
+  return buf || (0, _stringify.default)(b);
+}
+
+var _default = v1;
+exports.default = _default;

backend/node_modules/uuid/dist/v3.js

@@ -0,0 +1,16 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _v = _interopRequireDefault(require("./v35.js"));
+
+var _md = _interopRequireDefault(require("./md5.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+const v3 = (0, _v.default)('v3', 0x30, _md.default);
+var _default = v3;
+exports.default = _default;

backend/node_modules/uuid/dist/v35.js

@@ -0,0 +1,78 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = _default;
+exports.URL = exports.DNS = void 0;
+
+var _stringify = _interopRequireDefault(require("./stringify.js"));
+
+var _parse = _interopRequireDefault(require("./parse.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function stringToBytes(str) {
+  str = unescape(encodeURIComponent(str)); // UTF8 escape
+
+  const bytes = [];
+
+  for (let i = 0; i < str.length; ++i) {
+    bytes.push(str.charCodeAt(i));
+  }
+
+  return bytes;
+}
+
+const DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
+exports.DNS = DNS;
+const URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';
+exports.URL = URL;
+
+function _default(name, version, hashfunc) {
+  function generateUUID(value, namespace, buf, offset) {
+    if (typeof value === 'string') {
+      value = stringToBytes(value);
+    }
+
+    if (typeof namespace === 'string') {
+      namespace = (0, _parse.default)(namespace);
+    }
+
+    if (namespace.length !== 16) {
+      throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)');
+    } // Compute hash of namespace and value, Per 4.3
+    // Future: Use spread syntax when supported on all platforms, e.g. `bytes =
+    // hashfunc([...namespace, ... value])`
+
+
+    let bytes = new Uint8Array(16 + value.length);
+    bytes.set(namespace);
+    bytes.set(value, namespace.length);
+    bytes = hashfunc(bytes);
+    bytes[6] = bytes[6] & 0x0f | version;
+    bytes[8] = bytes[8] & 0x3f | 0x80;
+
+    if (buf) {
+      offset = offset || 0;
+
+      for (let i = 0; i < 16; ++i) {
+        buf[offset + i] = bytes[i];
+      }
+
+      return buf;
+    }
+
+    return (0, _stringify.default)(bytes);
+  } // Function#name is not settable on some platforms (#270)
+
+
+  try {
+    generateUUID.name = name; // eslint-disable-next-line no-empty
+  } catch (err) {} // For CommonJS default export support
+
+
+  generateUUID.DNS = DNS;
+  generateUUID.URL = URL;
+  return generateUUID;
+}

backend/node_modules/uuid/dist/v4.js

@@ -0,0 +1,37 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _rng = _interopRequireDefault(require("./rng.js"));
+
+var _stringify = _interopRequireDefault(require("./stringify.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function v4(options, buf, offset) {
+  options = options || {};
+
+  const rnds = options.random || (options.rng || _rng.default)(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
+
+
+  rnds[6] = rnds[6] & 0x0f | 0x40;
+  rnds[8] = rnds[8] & 0x3f | 0x80; // Copy bytes to buffer, if provided
+
+  if (buf) {
+    offset = offset || 0;
+
+    for (let i = 0; i < 16; ++i) {
+      buf[offset + i] = rnds[i];
+    }
+
+    return buf;
+  }
+
+  return (0, _stringify.default)(rnds);
+}
+
+var _default = v4;
+exports.default = _default;

backend/node_modules/uuid/dist/v5.js

@@ -0,0 +1,16 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _v = _interopRequireDefault(require("./v35.js"));
+
+var _sha = _interopRequireDefault(require("./sha1.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+const v5 = (0, _v.default)('v5', 0x50, _sha.default);
+var _default = v5;
+exports.default = _default;

backend/node_modules/uuid/dist/validate.js

@@ -0,0 +1,17 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _regex = _interopRequireDefault(require("./regex.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function validate(uuid) {
+  return typeof uuid === 'string' && _regex.default.test(uuid);
+}
+
+var _default = validate;
+exports.default = _default;

backend/node_modules/uuid/dist/version.js

@@ -0,0 +1,21 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _validate = _interopRequireDefault(require("./validate.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function version(uuid) {
+  if (!(0, _validate.default)(uuid)) {
+    throw TypeError('Invalid UUID');
+  }
+
+  return parseInt(uuid.substr(14, 1), 16);
+}
+
+var _default = version;
+exports.default = _default;

backend/node_modules/uuid/wrapper.mjs

@@ -0,0 +1,10 @@
+import uuid from './dist/index.js';
+export const v1 = uuid.v1;
+export const v3 = uuid.v3;
+export const v4 = uuid.v4;
+export const v5 = uuid.v5;
+export const NIL = uuid.NIL;
+export const version = uuid.version;
+export const validate = uuid.validate;
+export const stringify = uuid.stringify;
+export const parse = uuid.parse;

frontend/src/components/chatPage/ChatPage.jsx

@@ -26,6 +26,7 @@ export const ChatPage = () => {
     let showUserInfoBox = useSelector(state => state.messageReducer.showUserInfoBox)// || localStorage.getItem('showBox');
 
     const [message, setMessage] = useState({message: ''});
+    
     const isTabletorMobile = (window.screen.width < 730);
 
     useEffect(() => {

frontend/src/components/chatPage/SwitchButton.jsx

@@ -1,12 +1,9 @@
 import Switch from '@mui/material/Switch';
 import { useDispatch } from 'react-redux';
 import { showUserInfoBox } from '../../reducers/userDataReducer';
-import { useSelector } from 'react-redux';
 
 export const SwitchButton = () => {
     
-    let showUserInfo = useSelector(state => state.messageReducer.showUserInfoBox)// || localStorage.getItem('showBox');
-
     const label = { inputProps: { 'aria-label': 'Switch demo' } };
     const dispatch = useDispatch();
 
@@ -20,7 +17,7 @@ export const SwitchButton = () => {
 
             <label>Show users infobar</label>
 
-            <Switch {...label} size="small" defaultChecked onChange={handleChange} />
+            <Switch {...label} size="small" defaultChecked onChange={() => handleChange()} />
         </div>
     )
 }

frontend/src/components/chatPage/TimeAgoMessage.jsx

@@ -2,8 +2,6 @@ import TimeAgo from 'react-timeago'
 import frenchStrings from 'react-timeago/lib/language-strings/fr'
 import buildFormatter from 'react-timeago/lib/formatters/buildFormatter'
 
-
-
 export const TimeAgoMessage = () => {
     
     const formatter = buildFormatter(frenchStrings)

frontend/src/components/chatPage/messageForm/MessegaForm.jsx

@@ -62,13 +62,10 @@ export const MessageForm = () => {
                                             console.log('edit message',e.target.textContent )
                                             dispatch(editMessage({editMessage: e.target.textContent}))                                        
                                         }
-                                        })
-                                    }
-                                  
+                                        })}
                             }}
                             className={ 
-                                (item.userName === user.userName)? 'message myMessage' :'message'}
-                        >
+                                (item.userName === user.userName)? 'message myMessage' :'message'}>
 
                             <p>{item.text}</p>  
 

frontend/src/components/chatPage/userInfo/UserInfo.jsx

@@ -4,6 +4,8 @@ import { banUser } from '../service/banUser';
 import Input from '@mui/material/Input';
 import { muteUser } from '../service/muteUser';
 import './userInfo.scss';
+import { useDispatch } from 'react-redux';
+import { getUserAvatar } from '../../../reducers/userDataReducer';
 
 
 export const UserInfo = () => {
@@ -18,13 +20,14 @@ export const UserInfo = () => {
         };
 
     const MOBILE_AVATAR_STYLE =  { margin: '5px auto'};
+
+    const dispatch = useDispatch();
   
     //add foto loading function
       
-    let displayType = 'none';
+    let displayType = 'block';
     const loadAvatarHandler = () => {
-        
-        console.log('load avatar')
+       // dispatch(getUserAvatar());
     }
 
 
@@ -34,6 +37,12 @@ export const UserInfo = () => {
     const socket = useSelector(state => state.getUserSocketReducer.socket)
 
     const isTabletorMobile = (window.screen.width < 730);
+
+    const inputHandler = (e) => {
+        const file = e.target.files[0]
+        console.log(file)
+        dispatch(getUserAvatar(file))
+    }
   
 
     return (
@@ -42,6 +51,7 @@ export const UserInfo = () => {
                     type="file"
                     accept="image/png, image/jpeg"
                     style = {{display: displayType}}
+                    onChange = {e => inputHandler(e)}
                     />
                 <Avatar
                     sx={ isTabletorMobile ? MOBILE_AVATAR_STYLE : PC_AVATAR_STYLE} 

frontend/src/reducers/userDataReducer.js

@@ -10,10 +10,13 @@ const initialState = {
     token: '',
     socket: null, 
     responseMessage: '',
-    showUserInfoBox: true
+    showUserInfoBox: true,
+    avatar: ''
 }
 
 const POST_URL =  process.env.REACT_APP_POST_URL || 'http://localhost:5000/login';
+const GET_AVATAR_URL =  process.env.REACT_APP_GET_AVATAR_URL || 'http://localhost:5000/avatar';
+
 
 export const getUserData = createAsyncThunk(
     'userData/getUser',
@@ -30,6 +33,32 @@ export const getUserData = createAsyncThunk(
                 }
             }  
     });
+
+
+    export const getUserAvatar = createAsyncThunk(
+        'userData/getUserAvatar',
+        async (file) => {
+             try {
+                const token = localStorage.getItem('token') ;
+                const formData = new FormData()
+                formData.append('file', file)
+                console.log(formData)
+                const response = await fetch(GET_AVATAR_URL, 
+                                        {
+                                            method: 'POST',
+                                            body: formData,
+                                            headers: {
+                                                'Content-Type': 'application/json',
+                                                'Authorization': `${token}`
+                                            }
+                                            });
+
+                return await response.json();
+            }catch (err) {
+                console.log('error getUserData thunk', err)
+                return err?.message
+            }
+        });
                     
 
 const getUserDataSlice = createSlice({
@@ -45,7 +74,8 @@ const getUserDataSlice = createSlice({
         deleteResponseMessage: state => {state.responseMessage = ''},
         showUserInfoBox: state => {
             state.showUserInfoBox = !state.showUserInfoBox  //replace later to other reducer file
-            localStorage.setItem('showBox', !state.showUserInfoBox)
+            console.log('reducer showUserInfoBox', state.showUserInfoBox)
+          //localStorage.setItem('showBox', !state.showUserInfoBox)
         },
     },
     extraReducers: (builder) => { 
@@ -60,17 +90,22 @@ const getUserDataSlice = createSlice({
                 state.responseMessage = action.payload.message
                 state.userLoadingStatus = 'error';
             }
-          })
+        })
            .addCase(getUserData.rejected, (state, action) => {
                state.userLoadingStatus = 'error';
                if(action.payload?.message){
                 state.responseMessage = action.payload.message
-            }
+        }
             state.responseMessage = 'Something went wrong...'
-          })
-        },
-        
-});
+        })
+            .addCase(getUserAvatar.fulfilled, (state, action) => {
+            console.log('get avatar fulfiled', action.payload)
+        })
+        .addCase(getUserAvatar.rejected, (state, action) => {
+            console.log('get avatar rejected', action.payload)
+        })
+    }}   
+);
 
 const {actions, reducer} = getUserDataSlice;
 const userDataReducer = reducer;