Remove jsonwebtoken dependency

server/libs/jws/LICENSE

@@ -0,0 +1,17 @@
+Copyright (c) 2013 Brian J. Brennan
+
+Permission is hereby granted, free of charge, to any person obtaining a copy 
+of this software and associated documentation files (the "Software"), to deal in 
+the Software without restriction, including without limitation the rights to use, 
+copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the 
+Software, and to permit persons to whom the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all 
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
+PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

server/libs/jws/index.js

@@ -0,0 +1,27 @@
+//
+// used by jsonwebtoken
+// Source: https://github.com/auth0/node-jws
+//
+
+/*global exports*/
+var SignStream = require('./lib/sign-stream');
+var VerifyStream = require('./lib/verify-stream');
+
+var ALGORITHMS = [
+  'HS256', 'HS384', 'HS512',
+  'RS256', 'RS384', 'RS512',
+  'PS256', 'PS384', 'PS512',
+  'ES256', 'ES384', 'ES512'
+];
+
+exports.ALGORITHMS = ALGORITHMS;
+exports.sign = SignStream.sign;
+exports.verify = VerifyStream.verify;
+exports.decode = VerifyStream.decode;
+exports.isValid = VerifyStream.isValid;
+exports.createSign = function createSign(opts) {
+  return new SignStream(opts);
+};
+exports.createVerify = function createVerify(opts) {
+  return new VerifyStream(opts);
+};

server/libs/jws/lib/data-stream.js

@@ -0,0 +1,55 @@
+/*global module, process*/
+var Buffer = require('safe-buffer').Buffer;
+var Stream = require('stream');
+var util = require('util');
+
+function DataStream(data) {
+  this.buffer = null;
+  this.writable = true;
+  this.readable = true;
+
+  // No input
+  if (!data) {
+    this.buffer = Buffer.alloc(0);
+    return this;
+  }
+
+  // Stream
+  if (typeof data.pipe === 'function') {
+    this.buffer = Buffer.alloc(0);
+    data.pipe(this);
+    return this;
+  }
+
+  // Buffer or String
+  // or Object (assumedly a passworded key)
+  if (data.length || typeof data === 'object') {
+    this.buffer = data;
+    this.writable = false;
+    process.nextTick(function () {
+      this.emit('end', data);
+      this.readable = false;
+      this.emit('close');
+    }.bind(this));
+    return this;
+  }
+
+  throw new TypeError('Unexpected data type (' + typeof data + ')');
+}
+util.inherits(DataStream, Stream);
+
+DataStream.prototype.write = function write(data) {
+  this.buffer = Buffer.concat([this.buffer, Buffer.from(data)]);
+  this.emit('data', data);
+};
+
+DataStream.prototype.end = function end(data) {
+  if (data)
+    this.write(data);
+  this.emit('end', data);
+  this.emit('close');
+  this.writable = false;
+  this.readable = false;
+};
+
+module.exports = DataStream;

server/libs/jws/lib/sign-stream.js

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+/*global module*/
+var Buffer = require('safe-buffer').Buffer;
+var DataStream = require('./data-stream');
+var jwa = require('../../jwa');
+var Stream = require('stream');
+var toString = require('./tostring');
+var util = require('util');
+
+function base64url(string, encoding) {
+  return Buffer
+    .from(string, encoding)
+    .toString('base64')
+    .replace(/=/g, '')
+    .replace(/\+/g, '-')
+    .replace(/\//g, '_');
+}
+
+function jwsSecuredInput(header, payload, encoding) {
+  encoding = encoding || 'utf8';
+  var encodedHeader = base64url(toString(header), 'binary');
+  var encodedPayload = base64url(toString(payload), encoding);
+  return util.format('%s.%s', encodedHeader, encodedPayload);
+}
+
+function jwsSign(opts) {
+  var header = opts.header;
+  var payload = opts.payload;
+  var secretOrKey = opts.secret || opts.privateKey;
+  var encoding = opts.encoding;
+  var algo = jwa(header.alg);
+  var securedInput = jwsSecuredInput(header, payload, encoding);
+  var signature = algo.sign(securedInput, secretOrKey);
+  return util.format('%s.%s', securedInput, signature);
+}
+
+function SignStream(opts) {
+  var secret = opts.secret || opts.privateKey || opts.key;
+  var secretStream = new DataStream(secret);
+  this.readable = true;
+  this.header = opts.header;
+  this.encoding = opts.encoding;
+  this.secret = this.privateKey = this.key = secretStream;
+  this.payload = new DataStream(opts.payload);
+  this.secret.once('close', function () {
+    if (!this.payload.writable && this.readable)
+      this.sign();
+  }.bind(this));
+
+  this.payload.once('close', function () {
+    if (!this.secret.writable && this.readable)
+      this.sign();
+  }.bind(this));
+}
+util.inherits(SignStream, Stream);
+
+SignStream.prototype.sign = function sign() {
+  try {
+    var signature = jwsSign({
+      header: this.header,
+      payload: this.payload.buffer,
+      secret: this.secret.buffer,
+      encoding: this.encoding
+    });
+    this.emit('done', signature);
+    this.emit('data', signature);
+    this.emit('end');
+    this.readable = false;
+    return signature;
+  } catch (e) {
+    this.readable = false;
+    this.emit('error', e);
+    this.emit('close');
+  }
+};
+
+SignStream.sign = jwsSign;
+
+module.exports = SignStream;

server/libs/jws/lib/tostring.js

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+/*global module*/
+var Buffer = require('buffer').Buffer;
+
+module.exports = function toString(obj) {
+  if (typeof obj === 'string')
+    return obj;
+  if (typeof obj === 'number' || Buffer.isBuffer(obj))
+    return obj.toString();
+  return JSON.stringify(obj);
+};

server/libs/jws/lib/verify-stream.js

@@ -0,0 +1,120 @@
+/*global module*/
+var Buffer = require('safe-buffer').Buffer;
+var DataStream = require('./data-stream');
+var jwa = require('../../jwa');
+var Stream = require('stream');
+var toString = require('./tostring');
+var util = require('util');
+var JWS_REGEX = /^[a-zA-Z0-9\-_]+?\.[a-zA-Z0-9\-_]+?\.([a-zA-Z0-9\-_]+)?$/;
+
+function isObject(thing) {
+  return Object.prototype.toString.call(thing) === '[object Object]';
+}
+
+function safeJsonParse(thing) {
+  if (isObject(thing))
+    return thing;
+  try { return JSON.parse(thing); }
+  catch (e) { return undefined; }
+}
+
+function headerFromJWS(jwsSig) {
+  var encodedHeader = jwsSig.split('.', 1)[0];
+  return safeJsonParse(Buffer.from(encodedHeader, 'base64').toString('binary'));
+}
+
+function securedInputFromJWS(jwsSig) {
+  return jwsSig.split('.', 2).join('.');
+}
+
+function signatureFromJWS(jwsSig) {
+  return jwsSig.split('.')[2];
+}
+
+function payloadFromJWS(jwsSig, encoding) {
+  encoding = encoding || 'utf8';
+  var payload = jwsSig.split('.')[1];
+  return Buffer.from(payload, 'base64').toString(encoding);
+}
+
+function isValidJws(string) {
+  return JWS_REGEX.test(string) && !!headerFromJWS(string);
+}
+
+function jwsVerify(jwsSig, algorithm, secretOrKey) {
+  if (!algorithm) {
+    var err = new Error("Missing algorithm parameter for jws.verify");
+    err.code = "MISSING_ALGORITHM";
+    throw err;
+  }
+  jwsSig = toString(jwsSig);
+  var signature = signatureFromJWS(jwsSig);
+  var securedInput = securedInputFromJWS(jwsSig);
+  var algo = jwa(algorithm);
+  return algo.verify(securedInput, signature, secretOrKey);
+}
+
+function jwsDecode(jwsSig, opts) {
+  opts = opts || {};
+  jwsSig = toString(jwsSig);
+
+  if (!isValidJws(jwsSig))
+    return null;
+
+  var header = headerFromJWS(jwsSig);
+
+  if (!header)
+    return null;
+
+  var payload = payloadFromJWS(jwsSig);
+  if (header.typ === 'JWT' || opts.json)
+    payload = JSON.parse(payload, opts.encoding);
+
+  return {
+    header: header,
+    payload: payload,
+    signature: signatureFromJWS(jwsSig)
+  };
+}
+
+function VerifyStream(opts) {
+  opts = opts || {};
+  var secretOrKey = opts.secret || opts.publicKey || opts.key;
+  var secretStream = new DataStream(secretOrKey);
+  this.readable = true;
+  this.algorithm = opts.algorithm;
+  this.encoding = opts.encoding;
+  this.secret = this.publicKey = this.key = secretStream;
+  this.signature = new DataStream(opts.signature);
+  this.secret.once('close', function () {
+    if (!this.signature.writable && this.readable)
+      this.verify();
+  }.bind(this));
+
+  this.signature.once('close', function () {
+    if (!this.secret.writable && this.readable)
+      this.verify();
+  }.bind(this));
+}
+util.inherits(VerifyStream, Stream);
+VerifyStream.prototype.verify = function verify() {
+  try {
+    var valid = jwsVerify(this.signature.buffer, this.algorithm, this.key.buffer);
+    var obj = jwsDecode(this.signature.buffer, this.encoding);
+    this.emit('done', valid, obj);
+    this.emit('data', valid);
+    this.emit('end');
+    this.readable = false;
+    return valid;
+  } catch (e) {
+    this.readable = false;
+    this.emit('error', e);
+    this.emit('close');
+  }
+};
+
+VerifyStream.decode = jwsDecode;
+VerifyStream.isValid = isValidJws;
+VerifyStream.verify = jwsVerify;
+
+module.exports = VerifyStream;