Remove jsonwebtoken dependency

This commit is contained in:
advplyr 2022-07-06 18:45:43 -05:00
parent b61ecefce4
commit 954cf3e14e
29 changed files with 2130 additions and 93 deletions

91
package-lock.json generated
View File

@ -188,11 +188,6 @@
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@ -354,14 +349,6 @@
"domhandler": "^5.0.1"
}
},
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@ -641,49 +628,6 @@
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"jsonwebtoken": {
"version": "8.5.1",
"resolved": "https://registry.npmjs.org/jsonwebtoken/-/jsonwebtoken-8.5.1.tgz",
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"requires": {
"jws": "^3.2.2",
"lodash.includes": "^4.3.0",
"lodash.isboolean": "^3.0.3",
"lodash.isinteger": "^4.0.4",
"lodash.isnumber": "^3.0.3",
"lodash.isplainobject": "^4.0.6",
"lodash.isstring": "^4.0.1",
"lodash.once": "^4.0.0",
"ms": "^2.1.1",
"semver": "^5.6.0"
},
"dependencies": {
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}
},
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"requires": {
"buffer-equal-constant-time": "1.0.1",
"ecdsa-sig-formatter": "1.0.11",
"safe-buffer": "^5.0.1"
}
},
"jws": {
"version": "3.2.2",
"resolved": "https://registry.npmjs.org/jws/-/jws-3.2.2.tgz",
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"safe-buffer": "^5.0.1"
}
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@ -741,41 +685,11 @@
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@ -949,11 +863,6 @@
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},
"send": {
"version": "0.18.0",
"resolved": "https://registry.npmjs.org/send/-/send-0.18.0.tgz",

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@ -39,7 +39,6 @@
"express-fileupload": "^1.2.1",
"express-rate-limit": "^5.3.0",
"htmlparser2": "^8.0.1",
"jsonwebtoken": "^8.5.1",
"socket.io": "^4.4.1",
"xml2js": "^0.4.23"
}

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@ -1,5 +1,5 @@
const bcrypt = require('bcryptjs')
const jwt = require('jsonwebtoken')
const jwt = require('./libs/jsonwebtoken')
const Logger = require('./Logger')
class Auth {

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@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2015 Auth0, Inc. <support@auth0.com> (http://auth0.com)
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.

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@ -0,0 +1,30 @@
var jws = require('../jws');
module.exports = function (jwt, options) {
options = options || {};
var decoded = jws.decode(jwt, options);
if (!decoded) { return null; }
var payload = decoded.payload;
//try parse the payload
if (typeof payload === 'string') {
try {
var obj = JSON.parse(payload);
if (obj !== null && typeof obj === 'object') {
payload = obj;
}
} catch (e) { }
}
//return header if `complete` option is enabled. header includes claims
//such as `kid` and `alg` used to select the key within a JWKS needed to
//verify the signature
if (options.complete === true) {
return {
header: decoded.header,
payload: payload,
signature: decoded.signature
};
}
return payload;
};

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@ -0,0 +1,17 @@
//
// modified for use in audiobookshelf
// Source: https://github.com/auth0/node-jsonwebtoken
//
module.exports = {
verify: require('./verify'),
sign: require('./sign'),
JsonWebTokenError: require('./lib/JsonWebTokenError'),
NotBeforeError: require('./lib/NotBeforeError'),
TokenExpiredError: require('./lib/TokenExpiredError'),
};
Object.defineProperty(module.exports, 'decode', {
enumerable: false,
value: require('./decode'),
});

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@ -0,0 +1,14 @@
var JsonWebTokenError = function (message, error) {
Error.call(this, message);
if(Error.captureStackTrace) {
Error.captureStackTrace(this, this.constructor);
}
this.name = 'JsonWebTokenError';
this.message = message;
if (error) this.inner = error;
};
JsonWebTokenError.prototype = Object.create(Error.prototype);
JsonWebTokenError.prototype.constructor = JsonWebTokenError;
module.exports = JsonWebTokenError;

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@ -0,0 +1,13 @@
var JsonWebTokenError = require('./JsonWebTokenError');
var NotBeforeError = function (message, date) {
JsonWebTokenError.call(this, message);
this.name = 'NotBeforeError';
this.date = date;
};
NotBeforeError.prototype = Object.create(JsonWebTokenError.prototype);
NotBeforeError.prototype.constructor = NotBeforeError;
module.exports = NotBeforeError;

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@ -0,0 +1,13 @@
var JsonWebTokenError = require('./JsonWebTokenError');
var TokenExpiredError = function (message, expiredAt) {
JsonWebTokenError.call(this, message);
this.name = 'TokenExpiredError';
this.expiredAt = expiredAt;
};
TokenExpiredError.prototype = Object.create(JsonWebTokenError.prototype);
TokenExpiredError.prototype.constructor = TokenExpiredError;
module.exports = TokenExpiredError;

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@ -0,0 +1,18 @@
var ms = require('../../ms');
module.exports = function (time, iat) {
var timestamp = iat || Math.floor(Date.now() / 1000);
if (typeof time === 'string') {
var milliseconds = ms(time);
if (typeof milliseconds === 'undefined') {
return;
}
return Math.floor(timestamp + milliseconds / 1000);
} else if (typeof time === 'number') {
return timestamp + time;
} else {
return;
}
};

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@ -0,0 +1,214 @@
var timespan = require('./lib/timespan');
var PS_SUPPORTED = true
var jws = require('../jws');
var once = require('../lodash.once');
var SUPPORTED_ALGS = ['RS256', 'RS384', 'RS512', 'ES256', 'ES384', 'ES512', 'HS256', 'HS384', 'HS512', 'none'];
if (PS_SUPPORTED) {
SUPPORTED_ALGS.splice(3, 0, 'PS256', 'PS384', 'PS512');
}
function isPlainObject(value) {
var type = typeof value;
return !!value && type == 'object' && !Array.isArray(value);
}
function isInteger(val) {
return !isNaN(val) && val !== null && !String(val).includes('.')
}
function isNumber(val) {
return !isNaN(val) && val !== null
}
function isString(val) {
return typeof val == 'string'
}
var sign_options_schema = {
expiresIn: { isValid: function (value) { return isInteger(value) || (isString(value) && value); }, message: '"expiresIn" should be a number of seconds or string representing a timespan' },
notBefore: { isValid: function (value) { return isInteger(value) || (isString(value) && value); }, message: '"notBefore" should be a number of seconds or string representing a timespan' },
audience: { isValid: function (value) { return isString(value) || Array.isArray(value); }, message: '"audience" must be a string or array' },
algorithm: { isValid: function (value) { return SUPPORTED_ALGS.includes(value); }, message: '"algorithm" must be a valid string enum value' },
header: { isValid: isPlainObject, message: '"header" must be an object' },
encoding: { isValid: isString, message: '"encoding" must be a string' },
issuer: { isValid: isString, message: '"issuer" must be a string' },
subject: { isValid: isString, message: '"subject" must be a string' },
jwtid: { isValid: isString, message: '"jwtid" must be a string' },
noTimestamp: { isValid: function (value) { return value === true || value === false; }, message: '"noTimestamp" must be a boolean' },
keyid: { isValid: isString, message: '"keyid" must be a string' },
mutatePayload: { isValid: function (value) { return value === true || value === false; }, message: '"mutatePayload" must be a boolean' }
};
var registered_claims_schema = {
iat: { isValid: isNumber, message: '"iat" should be a number of seconds' },
exp: { isValid: isNumber, message: '"exp" should be a number of seconds' },
nbf: { isValid: isNumber, message: '"nbf" should be a number of seconds' }
};
function validate(schema, allowUnknown, object, parameterName) {
if (!isPlainObject(object)) {
throw new Error('Expected "' + parameterName + '" to be a plain object.');
}
Object.keys(object)
.forEach(function (key) {
var validator = schema[key];
if (!validator) {
if (!allowUnknown) {
throw new Error('"' + key + '" is not allowed in "' + parameterName + '"');
}
return;
}
if (!validator.isValid(object[key])) {
throw new Error(validator.message);
}
});
}
function validateOptions(options) {
return validate(sign_options_schema, false, options, 'options');
}
function validatePayload(payload) {
return validate(registered_claims_schema, true, payload, 'payload');
}
var options_to_payload = {
'audience': 'aud',
'issuer': 'iss',
'subject': 'sub',
'jwtid': 'jti'
};
var options_for_objects = [
'expiresIn',
'notBefore',
'noTimestamp',
'audience',
'issuer',
'subject',
'jwtid',
];
module.exports = function (payload, secretOrPrivateKey, options, callback) {
if (typeof options === 'function') {
callback = options;
options = {};
} else {
options = options || {};
}
var isObjectPayload = typeof payload === 'object' &&
!Buffer.isBuffer(payload);
var header = Object.assign({
alg: options.algorithm || 'HS256',
typ: isObjectPayload ? 'JWT' : undefined,
kid: options.keyid
}, options.header);
function failure(err) {
if (callback) {
return callback(err);
}
throw err;
}
if (!secretOrPrivateKey && options.algorithm !== 'none') {
return failure(new Error('secretOrPrivateKey must have a value'));
}
if (typeof payload === 'undefined') {
return failure(new Error('payload is required'));
} else if (isObjectPayload) {
try {
validatePayload(payload);
}
catch (error) {
return failure(error);
}
if (!options.mutatePayload) {
payload = Object.assign({}, payload);
}
} else {
var invalid_options = options_for_objects.filter(function (opt) {
return typeof options[opt] !== 'undefined';
});
if (invalid_options.length > 0) {
return failure(new Error('invalid ' + invalid_options.join(',') + ' option for ' + (typeof payload) + ' payload'));
}
}
if (typeof payload.exp !== 'undefined' && typeof options.expiresIn !== 'undefined') {
return failure(new Error('Bad "options.expiresIn" option the payload already has an "exp" property.'));
}
if (typeof payload.nbf !== 'undefined' && typeof options.notBefore !== 'undefined') {
return failure(new Error('Bad "options.notBefore" option the payload already has an "nbf" property.'));
}
try {
validateOptions(options);
}
catch (error) {
return failure(error);
}
var timestamp = payload.iat || Math.floor(Date.now() / 1000);
if (options.noTimestamp) {
delete payload.iat;
} else if (isObjectPayload) {
payload.iat = timestamp;
}
if (typeof options.notBefore !== 'undefined') {
try {
payload.nbf = timespan(options.notBefore, timestamp);
}
catch (err) {
return failure(err);
}
if (typeof payload.nbf === 'undefined') {
return failure(new Error('"notBefore" should be a number of seconds or string representing a timespan eg: "1d", "20h", 60'));
}
}
if (typeof options.expiresIn !== 'undefined' && typeof payload === 'object') {
try {
payload.exp = timespan(options.expiresIn, timestamp);
}
catch (err) {
return failure(err);
}
if (typeof payload.exp === 'undefined') {
return failure(new Error('"expiresIn" should be a number of seconds or string representing a timespan eg: "1d", "20h", 60'));
}
}
Object.keys(options_to_payload).forEach(function (key) {
var claim = options_to_payload[key];
if (typeof options[key] !== 'undefined') {
if (typeof payload[claim] !== 'undefined') {
return failure(new Error('Bad "options.' + key + '" option. The payload already has an "' + claim + '" property.'));
}
payload[claim] = options[key];
}
});
var encoding = options.encoding || 'utf8';
if (typeof callback === 'function') {
callback = callback && once(callback);
jws.createSign({
header: header,
privateKey: secretOrPrivateKey,
payload: payload,
encoding: encoding
}).once('error', callback)
.once('done', function (signature) {
callback(null, signature);
});
} else {
return jws.sign({ header: header, payload: payload, secret: secretOrPrivateKey, encoding: encoding });
}
};

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@ -0,0 +1,225 @@
var JsonWebTokenError = require('./lib/JsonWebTokenError');
var NotBeforeError = require('./lib/NotBeforeError');
var TokenExpiredError = require('./lib/TokenExpiredError');
var decode = require('./decode');
var timespan = require('./lib/timespan');
var PS_SUPPORTED = true
var jws = require('../jws');
var PUB_KEY_ALGS = ['RS256', 'RS384', 'RS512', 'ES256', 'ES384', 'ES512'];
var RSA_KEY_ALGS = ['RS256', 'RS384', 'RS512'];
var HS_ALGS = ['HS256', 'HS384', 'HS512'];
if (PS_SUPPORTED) {
PUB_KEY_ALGS.splice(3, 0, 'PS256', 'PS384', 'PS512');
RSA_KEY_ALGS.splice(3, 0, 'PS256', 'PS384', 'PS512');
}
module.exports = function (jwtString, secretOrPublicKey, options, callback) {
if ((typeof options === 'function') && !callback) {
callback = options;
options = {};
}
if (!options) {
options = {};
}
//clone this object since we are going to mutate it.
options = Object.assign({}, options);
var done;
if (callback) {
done = callback;
} else {
done = function (err, data) {
if (err) throw err;
return data;
};
}
if (options.clockTimestamp && typeof options.clockTimestamp !== 'number') {
return done(new JsonWebTokenError('clockTimestamp must be a number'));
}
if (options.nonce !== undefined && (typeof options.nonce !== 'string' || options.nonce.trim() === '')) {
return done(new JsonWebTokenError('nonce must be a non-empty string'));
}
var clockTimestamp = options.clockTimestamp || Math.floor(Date.now() / 1000);
if (!jwtString) {
return done(new JsonWebTokenError('jwt must be provided'));
}
if (typeof jwtString !== 'string') {
return done(new JsonWebTokenError('jwt must be a string'));
}
var parts = jwtString.split('.');
if (parts.length !== 3) {
return done(new JsonWebTokenError('jwt malformed'));
}
var decodedToken;
try {
decodedToken = decode(jwtString, { complete: true });
} catch (err) {
return done(err);
}
if (!decodedToken) {
return done(new JsonWebTokenError('invalid token'));
}
var header = decodedToken.header;
var getSecret;
if (typeof secretOrPublicKey === 'function') {
if (!callback) {
return done(new JsonWebTokenError('verify must be called asynchronous if secret or public key is provided as a callback'));
}
getSecret = secretOrPublicKey;
}
else {
getSecret = function (header, secretCallback) {
return secretCallback(null, secretOrPublicKey);
};
}
return getSecret(header, function (err, secretOrPublicKey) {
if (err) {
return done(new JsonWebTokenError('error in secret or public key callback: ' + err.message));
}
var hasSignature = parts[2].trim() !== '';
if (!hasSignature && secretOrPublicKey) {
return done(new JsonWebTokenError('jwt signature is required'));
}
if (hasSignature && !secretOrPublicKey) {
return done(new JsonWebTokenError('secret or public key must be provided'));
}
if (!hasSignature && !options.algorithms) {
options.algorithms = ['none'];
}
if (!options.algorithms) {
options.algorithms = secretOrPublicKey.toString().includes('BEGIN CERTIFICATE') ||
secretOrPublicKey.toString().includes('BEGIN PUBLIC KEY') ? PUB_KEY_ALGS :
secretOrPublicKey.toString().includes('BEGIN RSA PUBLIC KEY') ? RSA_KEY_ALGS : HS_ALGS;
}
if (!~options.algorithms.indexOf(decodedToken.header.alg)) {
return done(new JsonWebTokenError('invalid algorithm'));
}
var valid;
try {
valid = jws.verify(jwtString, decodedToken.header.alg, secretOrPublicKey);
} catch (e) {
return done(e);
}
if (!valid) {
return done(new JsonWebTokenError('invalid signature'));
}
var payload = decodedToken.payload;
if (typeof payload.nbf !== 'undefined' && !options.ignoreNotBefore) {
if (typeof payload.nbf !== 'number') {
return done(new JsonWebTokenError('invalid nbf value'));
}
if (payload.nbf > clockTimestamp + (options.clockTolerance || 0)) {
return done(new NotBeforeError('jwt not active', new Date(payload.nbf * 1000)));
}
}
if (typeof payload.exp !== 'undefined' && !options.ignoreExpiration) {
if (typeof payload.exp !== 'number') {
return done(new JsonWebTokenError('invalid exp value'));
}
if (clockTimestamp >= payload.exp + (options.clockTolerance || 0)) {
return done(new TokenExpiredError('jwt expired', new Date(payload.exp * 1000)));
}
}
if (options.audience) {
var audiences = Array.isArray(options.audience) ? options.audience : [options.audience];
var target = Array.isArray(payload.aud) ? payload.aud : [payload.aud];
var match = target.some(function (targetAudience) {
return audiences.some(function (audience) {
return audience instanceof RegExp ? audience.test(targetAudience) : audience === targetAudience;
});
});
if (!match) {
return done(new JsonWebTokenError('jwt audience invalid. expected: ' + audiences.join(' or ')));
}
}
if (options.issuer) {
var invalid_issuer =
(typeof options.issuer === 'string' && payload.iss !== options.issuer) ||
(Array.isArray(options.issuer) && options.issuer.indexOf(payload.iss) === -1);
if (invalid_issuer) {
return done(new JsonWebTokenError('jwt issuer invalid. expected: ' + options.issuer));
}
}
if (options.subject) {
if (payload.sub !== options.subject) {
return done(new JsonWebTokenError('jwt subject invalid. expected: ' + options.subject));
}
}
if (options.jwtid) {
if (payload.jti !== options.jwtid) {
return done(new JsonWebTokenError('jwt jwtid invalid. expected: ' + options.jwtid));
}
}
if (options.nonce) {
if (payload.nonce !== options.nonce) {
return done(new JsonWebTokenError('jwt nonce invalid. expected: ' + options.nonce));
}
}
if (options.maxAge) {
if (typeof payload.iat !== 'number') {
return done(new JsonWebTokenError('iat required when maxAge is specified'));
}
var maxAgeTimestamp = timespan(options.maxAge, payload.iat);
if (typeof maxAgeTimestamp === 'undefined') {
return done(new JsonWebTokenError('"maxAge" should be a number of seconds or string representing a timespan eg: "1d", "20h", 60'));
}
if (clockTimestamp >= maxAgeTimestamp + (options.clockTolerance || 0)) {
return done(new TokenExpiredError('maxAge exceeded', new Date(maxAgeTimestamp * 1000)));
}
}
if (options.complete === true) {
var signature = decodedToken.signature;
return done(null, {
header: header,
payload: payload,
signature: signature
});
}
return done(null, payload);
});
};

17
server/libs/jwa/LICENSE Normal file
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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.

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Copyright (c) 2013, GoInstant Inc., a salesforce.com company
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
* Neither the name of salesforce.com, nor GoInstant, nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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/*jshint node:true */
'use strict';
var Buffer = require('buffer').Buffer; // browserify
var SlowBuffer = require('buffer').SlowBuffer;
module.exports = bufferEq;
function bufferEq(a, b) {
// shortcutting on type is necessary for correctness
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
return false;
}
// buffer sizes should be well-known information, so despite this
// shortcutting, it doesn't leak any information about the *contents* of the
// buffers.
if (a.length !== b.length) {
return false;
}
var c = 0;
for (var i = 0; i < a.length; i++) {
/*jshint bitwise:false */
c |= a[i] ^ b[i]; // XOR
}
return c === 0;
}
bufferEq.install = function () {
Buffer.prototype.equal = SlowBuffer.prototype.equal = function equal(that) {
return bufferEq(this, that);
};
};
var origBufEqual = Buffer.prototype.equal;
var origSlowBufEqual = SlowBuffer.prototype.equal;
bufferEq.restore = function () {
Buffer.prototype.equal = origBufEqual;
SlowBuffer.prototype.equal = origSlowBufEqual;
};

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'use strict';
var Buffer = require('safe-buffer').Buffer;
var getParamBytesForAlg = require('./param-bytes-for-alg');
var MAX_OCTET = 0x80,
CLASS_UNIVERSAL = 0,
PRIMITIVE_BIT = 0x20,
TAG_SEQ = 0x10,
TAG_INT = 0x02,
ENCODED_TAG_SEQ = (TAG_SEQ | PRIMITIVE_BIT) | (CLASS_UNIVERSAL << 6),
ENCODED_TAG_INT = TAG_INT | (CLASS_UNIVERSAL << 6);
function base64Url(base64) {
return base64
.replace(/=/g, '')
.replace(/\+/g, '-')
.replace(/\//g, '_');
}
function signatureAsBuffer(signature) {
if (Buffer.isBuffer(signature)) {
return signature;
} else if ('string' === typeof signature) {
return Buffer.from(signature, 'base64');
}
throw new TypeError('ECDSA signature must be a Base64 string or a Buffer');
}
function derToJose(signature, alg) {
signature = signatureAsBuffer(signature);
var paramBytes = getParamBytesForAlg(alg);
// the DER encoded param should at most be the param size, plus a padding
// zero, since due to being a signed integer
var maxEncodedParamLength = paramBytes + 1;
var inputLength = signature.length;
var offset = 0;
if (signature[offset++] !== ENCODED_TAG_SEQ) {
throw new Error('Could not find expected "seq"');
}
var seqLength = signature[offset++];
if (seqLength === (MAX_OCTET | 1)) {
seqLength = signature[offset++];
}
if (inputLength - offset < seqLength) {
throw new Error('"seq" specified length of "' + seqLength + '", only "' + (inputLength - offset) + '" remaining');
}
if (signature[offset++] !== ENCODED_TAG_INT) {
throw new Error('Could not find expected "int" for "r"');
}
var rLength = signature[offset++];
if (inputLength - offset - 2 < rLength) {
throw new Error('"r" specified length of "' + rLength + '", only "' + (inputLength - offset - 2) + '" available');
}
if (maxEncodedParamLength < rLength) {
throw new Error('"r" specified length of "' + rLength + '", max of "' + maxEncodedParamLength + '" is acceptable');
}
var rOffset = offset;
offset += rLength;
if (signature[offset++] !== ENCODED_TAG_INT) {
throw new Error('Could not find expected "int" for "s"');
}
var sLength = signature[offset++];
if (inputLength - offset !== sLength) {
throw new Error('"s" specified length of "' + sLength + '", expected "' + (inputLength - offset) + '"');
}
if (maxEncodedParamLength < sLength) {
throw new Error('"s" specified length of "' + sLength + '", max of "' + maxEncodedParamLength + '" is acceptable');
}
var sOffset = offset;
offset += sLength;
if (offset !== inputLength) {
throw new Error('Expected to consume entire buffer, but "' + (inputLength - offset) + '" bytes remain');
}
var rPadding = paramBytes - rLength,
sPadding = paramBytes - sLength;
var dst = Buffer.allocUnsafe(rPadding + rLength + sPadding + sLength);
for (offset = 0; offset < rPadding; ++offset) {
dst[offset] = 0;
}
signature.copy(dst, offset, rOffset + Math.max(-rPadding, 0), rOffset + rLength);
offset = paramBytes;
for (var o = offset; offset < o + sPadding; ++offset) {
dst[offset] = 0;
}
signature.copy(dst, offset, sOffset + Math.max(-sPadding, 0), sOffset + sLength);
dst = dst.toString('base64');
dst = base64Url(dst);
return dst;
}
function countPadding(buf, start, stop) {
var padding = 0;
while (start + padding < stop && buf[start + padding] === 0) {
++padding;
}
var needsSign = buf[start + padding] >= MAX_OCTET;
if (needsSign) {
--padding;
}
return padding;
}
function joseToDer(signature, alg) {
signature = signatureAsBuffer(signature);
var paramBytes = getParamBytesForAlg(alg);
var signatureBytes = signature.length;
if (signatureBytes !== paramBytes * 2) {
throw new TypeError('"' + alg + '" signatures must be "' + paramBytes * 2 + '" bytes, saw "' + signatureBytes + '"');
}
var rPadding = countPadding(signature, 0, paramBytes);
var sPadding = countPadding(signature, paramBytes, signature.length);
var rLength = paramBytes - rPadding;
var sLength = paramBytes - sPadding;
var rsBytes = 1 + 1 + rLength + 1 + 1 + sLength;
var shortLength = rsBytes < MAX_OCTET;
var dst = Buffer.allocUnsafe((shortLength ? 2 : 3) + rsBytes);
var offset = 0;
dst[offset++] = ENCODED_TAG_SEQ;
if (shortLength) {
// Bit 8 has value "0"
// bits 7-1 give the length.
dst[offset++] = rsBytes;
} else {
// Bit 8 of first octet has value "1"
// bits 7-1 give the number of additional length octets.
dst[offset++] = MAX_OCTET | 1;
// length, base 256
dst[offset++] = rsBytes & 0xff;
}
dst[offset++] = ENCODED_TAG_INT;
dst[offset++] = rLength;
if (rPadding < 0) {
dst[offset++] = 0;
offset += signature.copy(dst, offset, 0, paramBytes);
} else {
offset += signature.copy(dst, offset, rPadding, paramBytes);
}
dst[offset++] = ENCODED_TAG_INT;
dst[offset++] = sLength;
if (sPadding < 0) {
dst[offset++] = 0;
signature.copy(dst, offset, paramBytes);
} else {
signature.copy(dst, offset, paramBytes + sPadding);
}
return dst;
}
module.exports = {
derToJose: derToJose,
joseToDer: joseToDer
};

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'use strict';
function getParamSize(keySize) {
var result = ((keySize / 8) | 0) + (keySize % 8 === 0 ? 0 : 1);
return result;
}
var paramBytesForAlg = {
ES256: getParamSize(256),
ES384: getParamSize(384),
ES512: getParamSize(521)
};
function getParamBytesForAlg(alg) {
var paramBytes = paramBytesForAlg[alg];
if (paramBytes) {
return paramBytes;
}
throw new Error('Unknown algorithm "' + alg + '"');
}
module.exports = getParamBytesForAlg;

257
server/libs/jwa/index.js Normal file
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//
// used by jws
// Source: https://github.com/auth0/node-jwa
//
var bufferEqual = require('./buffer-equal-constant-time');
var Buffer = require('safe-buffer').Buffer;
var crypto = require('crypto');
var formatEcdsa = require('./ecdsa-sig-formatter');
var util = require('util');
var MSG_INVALID_ALGORITHM = '"%s" is not a valid algorithm.\n Supported algorithms are:\n "HS256", "HS384", "HS512", "RS256", "RS384", "RS512", "PS256", "PS384", "PS512", "ES256", "ES384", "ES512" and "none".'
var MSG_INVALID_SECRET = 'secret must be a string or buffer';
var MSG_INVALID_VERIFIER_KEY = 'key must be a string or a buffer';
var MSG_INVALID_SIGNER_KEY = 'key must be a string, a buffer or an object';
var supportsKeyObjects = typeof crypto.createPublicKey === 'function';
if (supportsKeyObjects) {
MSG_INVALID_VERIFIER_KEY += ' or a KeyObject';
MSG_INVALID_SECRET += 'or a KeyObject';
}
function checkIsPublicKey(key) {
if (Buffer.isBuffer(key)) {
return;
}
if (typeof key === 'string') {
return;
}
if (!supportsKeyObjects) {
throw typeError(MSG_INVALID_VERIFIER_KEY);
}
if (typeof key !== 'object') {
throw typeError(MSG_INVALID_VERIFIER_KEY);
}
if (typeof key.type !== 'string') {
throw typeError(MSG_INVALID_VERIFIER_KEY);
}
if (typeof key.asymmetricKeyType !== 'string') {
throw typeError(MSG_INVALID_VERIFIER_KEY);
}
if (typeof key.export !== 'function') {
throw typeError(MSG_INVALID_VERIFIER_KEY);
}
};
function checkIsPrivateKey(key) {
if (Buffer.isBuffer(key)) {
return;
}
if (typeof key === 'string') {
return;
}
if (typeof key === 'object') {
return;
}
throw typeError(MSG_INVALID_SIGNER_KEY);
};
function checkIsSecretKey(key) {
if (Buffer.isBuffer(key)) {
return;
}
if (typeof key === 'string') {
return key;
}
if (!supportsKeyObjects) {
throw typeError(MSG_INVALID_SECRET);
}
if (typeof key !== 'object') {
throw typeError(MSG_INVALID_SECRET);
}
if (key.type !== 'secret') {
throw typeError(MSG_INVALID_SECRET);
}
if (typeof key.export !== 'function') {
throw typeError(MSG_INVALID_SECRET);
}
}
function fromBase64(base64) {
return base64
.replace(/=/g, '')
.replace(/\+/g, '-')
.replace(/\//g, '_');
}
function toBase64(base64url) {
base64url = base64url.toString();
var padding = 4 - base64url.length % 4;
if (padding !== 4) {
for (var i = 0; i < padding; ++i) {
base64url += '=';
}
}
return base64url
.replace(/\-/g, '+')
.replace(/_/g, '/');
}
function typeError(template) {
var args = [].slice.call(arguments, 1);
var errMsg = util.format.bind(util, template).apply(null, args);
return new TypeError(errMsg);
}
function bufferOrString(obj) {
return Buffer.isBuffer(obj) || typeof obj === 'string';
}
function normalizeInput(thing) {
if (!bufferOrString(thing))
thing = JSON.stringify(thing);
return thing;
}
function createHmacSigner(bits) {
return function sign(thing, secret) {
checkIsSecretKey(secret);
thing = normalizeInput(thing);
var hmac = crypto.createHmac('sha' + bits, secret);
var sig = (hmac.update(thing), hmac.digest('base64'))
return fromBase64(sig);
}
}
function createHmacVerifier(bits) {
return function verify(thing, signature, secret) {
var computedSig = createHmacSigner(bits)(thing, secret);
return bufferEqual(Buffer.from(signature), Buffer.from(computedSig));
}
}
function createKeySigner(bits) {
return function sign(thing, privateKey) {
checkIsPrivateKey(privateKey);
thing = normalizeInput(thing);
// Even though we are specifying "RSA" here, this works with ECDSA
// keys as well.
var signer = crypto.createSign('RSA-SHA' + bits);
var sig = (signer.update(thing), signer.sign(privateKey, 'base64'));
return fromBase64(sig);
}
}
function createKeyVerifier(bits) {
return function verify(thing, signature, publicKey) {
checkIsPublicKey(publicKey);
thing = normalizeInput(thing);
signature = toBase64(signature);
var verifier = crypto.createVerify('RSA-SHA' + bits);
verifier.update(thing);
return verifier.verify(publicKey, signature, 'base64');
}
}
function createPSSKeySigner(bits) {
return function sign(thing, privateKey) {
checkIsPrivateKey(privateKey);
thing = normalizeInput(thing);
var signer = crypto.createSign('RSA-SHA' + bits);
var sig = (signer.update(thing), signer.sign({
key: privateKey,
padding: crypto.constants.RSA_PKCS1_PSS_PADDING,
saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST
}, 'base64'));
return fromBase64(sig);
}
}
function createPSSKeyVerifier(bits) {
return function verify(thing, signature, publicKey) {
checkIsPublicKey(publicKey);
thing = normalizeInput(thing);
signature = toBase64(signature);
var verifier = crypto.createVerify('RSA-SHA' + bits);
verifier.update(thing);
return verifier.verify({
key: publicKey,
padding: crypto.constants.RSA_PKCS1_PSS_PADDING,
saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST
}, signature, 'base64');
}
}
function createECDSASigner(bits) {
var inner = createKeySigner(bits);
return function sign() {
var signature = inner.apply(null, arguments);
signature = formatEcdsa.derToJose(signature, 'ES' + bits);
return signature;
};
}
function createECDSAVerifer(bits) {
var inner = createKeyVerifier(bits);
return function verify(thing, signature, publicKey) {
signature = formatEcdsa.joseToDer(signature, 'ES' + bits).toString('base64');
var result = inner(thing, signature, publicKey);
return result;
};
}
function createNoneSigner() {
return function sign() {
return '';
}
}
function createNoneVerifier() {
return function verify(thing, signature) {
return signature === '';
}
}
module.exports = function jwa(algorithm) {
var signerFactories = {
hs: createHmacSigner,
rs: createKeySigner,
ps: createPSSKeySigner,
es: createECDSASigner,
none: createNoneSigner,
}
var verifierFactories = {
hs: createHmacVerifier,
rs: createKeyVerifier,
ps: createPSSKeyVerifier,
es: createECDSAVerifer,
none: createNoneVerifier,
}
var match = algorithm.match(/^(RS|PS|ES|HS)(256|384|512)$|^(none)$/);
if (!match)
throw typeError(MSG_INVALID_ALGORITHM, algorithm);
var algo = (match[1] || match[3]).toLowerCase();
var bits = match[2];
return {
sign: signerFactories[algo](bits),
verify: verifierFactories[algo](bits),
}
};

17
server/libs/jws/LICENSE Normal file
View File

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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.

27
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//
// 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);
};

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/*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;

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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;

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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);
};

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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');
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;

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Copyright jQuery Foundation and other contributors <https://jquery.org/>
Based on Underscore.js, copyright Jeremy Ashkenas,
DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
This software consists of voluntary contributions made by many
individuals. For exact contribution history, see the revision history
available at https://github.com/lodash/lodash
The following license applies to all parts of this software except as
documented below:
====
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.
====
Copyright and related rights for sample code are waived via CC0. Sample
code is defined as all source code displayed within the prose of the
documentation.
CC0: http://creativecommons.org/publicdomain/zero/1.0/
====
Files located in the node_modules and vendor directories are externally
maintained libraries used by this software which have their own
licenses; we recommend you read them, as their terms may differ from the
terms above.

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//
// used by jsonwebtoken
//
/**
* lodash (Custom Build) <https://lodash.com/>
* Build: `lodash modularize exports="npm" -o ./`
* Copyright jQuery Foundation and other contributors <https://jquery.org/>
* Released under MIT license <https://lodash.com/license>
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
* Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
*/
/** Used as the `TypeError` message for "Functions" methods. */
var FUNC_ERROR_TEXT = 'Expected a function';
/** Used as references for various `Number` constants. */
var INFINITY = 1 / 0,
MAX_INTEGER = 1.7976931348623157e+308,
NAN = 0 / 0;
/** `Object#toString` result references. */
var symbolTag = '[object Symbol]';
/** Used to match leading and trailing whitespace. */
var reTrim = /^\s+|\s+$/g;
/** Used to detect bad signed hexadecimal string values. */
var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
/** Used to detect binary string values. */
var reIsBinary = /^0b[01]+$/i;
/** Used to detect octal string values. */
var reIsOctal = /^0o[0-7]+$/i;
/** Built-in method references without a dependency on `root`. */
var freeParseInt = parseInt;
/** Used for built-in method references. */
var objectProto = Object.prototype;
/**
* Used to resolve the
* [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
* of values.
*/
var objectToString = objectProto.toString;
/**
* Creates a function that invokes `func`, with the `this` binding and arguments
* of the created function, while it's called less than `n` times. Subsequent
* calls to the created function return the result of the last `func` invocation.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Function
* @param {number} n The number of calls at which `func` is no longer invoked.
* @param {Function} func The function to restrict.
* @returns {Function} Returns the new restricted function.
* @example
*
* jQuery(element).on('click', _.before(5, addContactToList));
* // => Allows adding up to 4 contacts to the list.
*/
function before(n, func) {
var result;
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
n = toInteger(n);
return function () {
if (--n > 0) {
result = func.apply(this, arguments);
}
if (n <= 1) {
func = undefined;
}
return result;
};
}
/**
* Creates a function that is restricted to invoking `func` once. Repeat calls
* to the function return the value of the first invocation. The `func` is
* invoked with the `this` binding and arguments of the created function.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to restrict.
* @returns {Function} Returns the new restricted function.
* @example
*
* var initialize = _.once(createApplication);
* initialize();
* initialize();
* // => `createApplication` is invoked once
*/
function once(func) {
return before(2, func);
}
/**
* Checks if `value` is the
* [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
* of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is an object, else `false`.
* @example
*
* _.isObject({});
* // => true
*
* _.isObject([1, 2, 3]);
* // => true
*
* _.isObject(_.noop);
* // => true
*
* _.isObject(null);
* // => false
*/
function isObject(value) {
var type = typeof value;
return !!value && (type == 'object' || type == 'function');
}
/**
* Checks if `value` is object-like. A value is object-like if it's not `null`
* and has a `typeof` result of "object".
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
* @example
*
* _.isObjectLike({});
* // => true
*
* _.isObjectLike([1, 2, 3]);
* // => true
*
* _.isObjectLike(_.noop);
* // => false
*
* _.isObjectLike(null);
* // => false
*/
function isObjectLike(value) {
return !!value && typeof value == 'object';
}
/**
* Checks if `value` is classified as a `Symbol` primitive or object.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
* @example
*
* _.isSymbol(Symbol.iterator);
* // => true
*
* _.isSymbol('abc');
* // => false
*/
function isSymbol(value) {
return typeof value == 'symbol' ||
(isObjectLike(value) && objectToString.call(value) == symbolTag);
}
/**
* Converts `value` to a finite number.
*
* @static
* @memberOf _
* @since 4.12.0
* @category Lang
* @param {*} value The value to convert.
* @returns {number} Returns the converted number.
* @example
*
* _.toFinite(3.2);
* // => 3.2
*
* _.toFinite(Number.MIN_VALUE);
* // => 5e-324
*
* _.toFinite(Infinity);
* // => 1.7976931348623157e+308
*
* _.toFinite('3.2');
* // => 3.2
*/
function toFinite(value) {
if (!value) {
return value === 0 ? value : 0;
}
value = toNumber(value);
if (value === INFINITY || value === -INFINITY) {
var sign = (value < 0 ? -1 : 1);
return sign * MAX_INTEGER;
}
return value === value ? value : 0;
}
/**
* Converts `value` to an integer.
*
* **Note:** This method is loosely based on
* [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to convert.
* @returns {number} Returns the converted integer.
* @example
*
* _.toInteger(3.2);
* // => 3
*
* _.toInteger(Number.MIN_VALUE);
* // => 0
*
* _.toInteger(Infinity);
* // => 1.7976931348623157e+308
*
* _.toInteger('3.2');
* // => 3
*/
function toInteger(value) {
var result = toFinite(value),
remainder = result % 1;
return result === result ? (remainder ? result - remainder : result) : 0;
}
/**
* Converts `value` to a number.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to process.
* @returns {number} Returns the number.
* @example
*
* _.toNumber(3.2);
* // => 3.2
*
* _.toNumber(Number.MIN_VALUE);
* // => 5e-324
*
* _.toNumber(Infinity);
* // => Infinity
*
* _.toNumber('3.2');
* // => 3.2
*/
function toNumber(value) {
if (typeof value == 'number') {
return value;
}
if (isSymbol(value)) {
return NAN;
}
if (isObject(value)) {
var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
value = isObject(other) ? (other + '') : other;
}
if (typeof value != 'string') {
return value === 0 ? value : +value;
}
value = value.replace(reTrim, '');
var isBinary = reIsBinary.test(value);
return (isBinary || reIsOctal.test(value))
? freeParseInt(value.slice(2), isBinary ? 2 : 8)
: (reIsBadHex.test(value) ? NAN : +value);
}
module.exports = once;

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The MIT License (MIT)
Copyright (c) 2016 Zeit, Inc.
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.

153
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//
// used by jsonwebtoken
// Source: https://github.com/vercel/ms
//
var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
var y = d * 365.25;
/**
* Parse or format the given `val`.
*
* Options:
*
* - `long` verbose formatting [false]
*
* @param {String|Number} val
* @param {Object} [options]
* @throws {Error} throw an error if val is not a non-empty string or a number
* @return {String|Number}
* @api public
*/
module.exports = function (val, options) {
options = options || {};
var type = typeof val;
if (type === 'string' && val.length > 0) {
return parse(val);
} else if (type === 'number' && isNaN(val) === false) {
return options.long ? fmtLong(val) : fmtShort(val);
}
throw new Error(
'val is not a non-empty string or a valid number. val=' +
JSON.stringify(val)
);
};
/**
* Parse the given `str` and return milliseconds.
*
* @param {String} str
* @return {Number}
* @api private
*/
function parse(str) {
str = String(str);
if (str.length > 100) {
return;
}
var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
str
);
if (!match) {
return;
}
var n = parseFloat(match[1]);
var type = (match[2] || 'ms').toLowerCase();
switch (type) {
case 'years':
case 'year':
case 'yrs':
case 'yr':
case 'y':
return n * y;
case 'days':
case 'day':
case 'd':
return n * d;
case 'hours':
case 'hour':
case 'hrs':
case 'hr':
case 'h':
return n * h;
case 'minutes':
case 'minute':
case 'mins':
case 'min':
case 'm':
return n * m;
case 'seconds':
case 'second':
case 'secs':
case 'sec':
case 's':
return n * s;
case 'milliseconds':
case 'millisecond':
case 'msecs':
case 'msec':
case 'ms':
return n;
default:
return undefined;
}
}
/**
* Short format for `ms`.
*
* @param {Number} ms
* @return {String}
* @api private
*/
function fmtShort(ms) {
if (ms >= d) {
return Math.round(ms / d) + 'd';
}
if (ms >= h) {
return Math.round(ms / h) + 'h';
}
if (ms >= m) {
return Math.round(ms / m) + 'm';
}
if (ms >= s) {
return Math.round(ms / s) + 's';
}
return ms + 'ms';
}
/**
* Long format for `ms`.
*
* @param {Number} ms
* @return {String}
* @api private
*/
function fmtLong(ms) {
return plural(ms, d, 'day') ||
plural(ms, h, 'hour') ||
plural(ms, m, 'minute') ||
plural(ms, s, 'second') ||
ms + ' ms';
}
/**
* Pluralization helper.
*/
function plural(ms, n, name) {
if (ms < n) {
return;
}
if (ms < n * 1.5) {
return Math.floor(ms / n) + ' ' + name;
}
return Math.ceil(ms / n) + ' ' + name + 's';
}