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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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# jsonwebtoken
| **Build** | **Dependency** |
|-----------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------|
| [![Build Status](https://secure.travis-ci.org/auth0/node-jsonwebtoken.svg?branch=master)](http://travis-ci.org/auth0/node-jsonwebtoken) | [![Dependency Status](https://david-dm.org/auth0/node-jsonwebtoken.svg)](https://david-dm.org/auth0/node-jsonwebtoken) |
An implementation of [JSON Web Tokens](https://tools.ietf.org/html/rfc7519).
This was developed against `draft-ietf-oauth-json-web-token-08`. It makes use of [node-jws](https://github.com/brianloveswords/node-jws)
# Install
```bash
$ npm install jsonwebtoken
```
# Migration notes
* [From v8 to v9](https://github.com/auth0/node-jsonwebtoken/wiki/Migration-Notes:-v8-to-v9)
* [From v7 to v8](https://github.com/auth0/node-jsonwebtoken/wiki/Migration-Notes:-v7-to-v8)
# Usage
### jwt.sign(payload, secretOrPrivateKey, [options, callback])
(Asynchronous) If a callback is supplied, the callback is called with the `err` or the JWT.
(Synchronous) Returns the JsonWebToken as string
`payload` could be an object literal, buffer or string representing valid JSON.
> **Please _note_ that** `exp` or any other claim is only set if the payload is an object literal. Buffer or string payloads are not checked for JSON validity.
> If `payload` is not a buffer or a string, it will be coerced into a string using `JSON.stringify`.
`secretOrPrivateKey` is a string (utf-8 encoded), buffer, object, or KeyObject containing either the secret for HMAC algorithms or the PEM
encoded private key for RSA and ECDSA. In case of a private key with passphrase an object `{ key, passphrase }` can be used (based on [crypto documentation](https://nodejs.org/api/crypto.html#crypto_sign_sign_private_key_output_format)), in this case be sure you pass the `algorithm` option.
When signing with RSA algorithms the minimum modulus length is 2048 except when the allowInsecureKeySizes option is set to true. Private keys below this size will be rejected with an error.
`options`:
* `algorithm` (default: `HS256`)
* `expiresIn`: expressed in seconds or a string describing a time span [vercel/ms](https://github.com/vercel/ms).
> Eg: `60`, `"2 days"`, `"10h"`, `"7d"`. A numeric value is interpreted as a seconds count. If you use a string be sure you provide the time units (days, hours, etc), otherwise milliseconds unit is used by default (`"120"` is equal to `"120ms"`).
* `notBefore`: expressed in seconds or a string describing a time span [vercel/ms](https://github.com/vercel/ms).
> Eg: `60`, `"2 days"`, `"10h"`, `"7d"`. A numeric value is interpreted as a seconds count. If you use a string be sure you provide the time units (days, hours, etc), otherwise milliseconds unit is used by default (`"120"` is equal to `"120ms"`).
* `audience`
* `issuer`
* `jwtid`
* `subject`
* `noTimestamp`
* `header`
* `keyid`
* `mutatePayload`: if true, the sign function will modify the payload object directly. This is useful if you need a raw reference to the payload after claims have been applied to it but before it has been encoded into a token.
* `allowInsecureKeySizes`: if true allows private keys with a modulus below 2048 to be used for RSA
* `allowInvalidAsymmetricKeyTypes`: if true, allows asymmetric keys which do not match the specified algorithm. This option is intended only for backwards compatability and should be avoided.
> There are no default values for `expiresIn`, `notBefore`, `audience`, `subject`, `issuer`. These claims can also be provided in the payload directly with `exp`, `nbf`, `aud`, `sub` and `iss` respectively, but you **_can't_** include in both places.
Remember that `exp`, `nbf` and `iat` are **NumericDate**, see related [Token Expiration (exp claim)](#token-expiration-exp-claim)
The header can be customized via the `options.header` object.
Generated jwts will include an `iat` (issued at) claim by default unless `noTimestamp` is specified. If `iat` is inserted in the payload, it will be used instead of the real timestamp for calculating other things like `exp` given a timespan in `options.expiresIn`.
Synchronous Sign with default (HMAC SHA256)
```js
var jwt = require('jsonwebtoken');
var token = jwt.sign({ foo: 'bar' }, 'shhhhh');
```
Synchronous Sign with RSA SHA256
```js
// sign with RSA SHA256
var privateKey = fs.readFileSync('private.key');
var token = jwt.sign({ foo: 'bar' }, privateKey, { algorithm: 'RS256' });
```
Sign asynchronously
```js
jwt.sign({ foo: 'bar' }, privateKey, { algorithm: 'RS256' }, function(err, token) {
console.log(token);
});
```
Backdate a jwt 30 seconds
```js
var older_token = jwt.sign({ foo: 'bar', iat: Math.floor(Date.now() / 1000) - 30 }, 'shhhhh');
```
#### Token Expiration (exp claim)
The standard for JWT defines an `exp` claim for expiration. The expiration is represented as a **NumericDate**:
> A JSON numeric value representing the number of seconds from 1970-01-01T00:00:00Z UTC until the specified UTC date/time, ignoring leap seconds. This is equivalent to the IEEE Std 1003.1, 2013 Edition [POSIX.1] definition "Seconds Since the Epoch", in which each day is accounted for by exactly 86400 seconds, other than that non-integer values can be represented. See RFC 3339 [RFC3339] for details regarding date/times in general and UTC in particular.
This means that the `exp` field should contain the number of seconds since the epoch.
Signing a token with 1 hour of expiration:
```javascript
jwt.sign({
exp: Math.floor(Date.now() / 1000) + (60 * 60),
data: 'foobar'
}, 'secret');
```
Another way to generate a token like this with this library is:
```javascript
jwt.sign({
data: 'foobar'
}, 'secret', { expiresIn: 60 * 60 });
//or even better:
jwt.sign({
data: 'foobar'
}, 'secret', { expiresIn: '1h' });
```
### jwt.verify(token, secretOrPublicKey, [options, callback])
(Asynchronous) If a callback is supplied, function acts asynchronously. The callback is called with the decoded payload if the signature is valid and optional expiration, audience, or issuer are valid. If not, it will be called with the error.
(Synchronous) If a callback is not supplied, function acts synchronously. Returns the payload decoded if the signature is valid and optional expiration, audience, or issuer are valid. If not, it will throw the error.
> __Warning:__ When the token comes from an untrusted source (e.g. user input or external requests), the returned decoded payload should be treated like any other user input; please make sure to sanitize and only work with properties that are expected
`token` is the JsonWebToken string
`secretOrPublicKey` is a string (utf-8 encoded), buffer, or KeyObject containing either the secret for HMAC algorithms, or the PEM
encoded public key for RSA and ECDSA.
If `jwt.verify` is called asynchronous, `secretOrPublicKey` can be a function that should fetch the secret or public key. See below for a detailed example
As mentioned in [this comment](https://github.com/auth0/node-jsonwebtoken/issues/208#issuecomment-231861138), there are other libraries that expect base64 encoded secrets (random bytes encoded using base64), if that is your case you can pass `Buffer.from(secret, 'base64')`, by doing this the secret will be decoded using base64 and the token verification will use the original random bytes.
`options`
* `algorithms`: List of strings with the names of the allowed algorithms. For instance, `["HS256", "HS384"]`.
> If not specified a defaults will be used based on the type of key provided
> * secret - ['HS256', 'HS384', 'HS512']
> * rsa - ['RS256', 'RS384', 'RS512']
> * ec - ['ES256', 'ES384', 'ES512']
> * default - ['RS256', 'RS384', 'RS512']
* `audience`: if you want to check audience (`aud`), provide a value here. The audience can be checked against a string, a regular expression or a list of strings and/or regular expressions.
> Eg: `"urn:foo"`, `/urn:f[o]{2}/`, `[/urn:f[o]{2}/, "urn:bar"]`
* `complete`: return an object with the decoded `{ payload, header, signature }` instead of only the usual content of the payload.
* `issuer` (optional): string or array of strings of valid values for the `iss` field.
* `jwtid` (optional): if you want to check JWT ID (`jti`), provide a string value here.
* `ignoreExpiration`: if `true` do not validate the expiration of the token.
* `ignoreNotBefore`...
* `subject`: if you want to check subject (`sub`), provide a value here
* `clockTolerance`: number of seconds to tolerate when checking the `nbf` and `exp` claims, to deal with small clock differences among different servers
* `maxAge`: the maximum allowed age for tokens to still be valid. It is expressed in seconds or a string describing a time span [vercel/ms](https://github.com/vercel/ms).
> Eg: `1000`, `"2 days"`, `"10h"`, `"7d"`. A numeric value is interpreted as a seconds count. If you use a string be sure you provide the time units (days, hours, etc), otherwise milliseconds unit is used by default (`"120"` is equal to `"120ms"`).
* `clockTimestamp`: the time in seconds that should be used as the current time for all necessary comparisons.
* `nonce`: if you want to check `nonce` claim, provide a string value here. It is used on Open ID for the ID Tokens. ([Open ID implementation notes](https://openid.net/specs/openid-connect-core-1_0.html#NonceNotes))
* `allowInvalidAsymmetricKeyTypes`: if true, allows asymmetric keys which do not match the specified algorithm. This option is intended only for backwards compatability and should be avoided.
```js
// verify a token symmetric - synchronous
var decoded = jwt.verify(token, 'shhhhh');
console.log(decoded.foo) // bar
// verify a token symmetric
jwt.verify(token, 'shhhhh', function(err, decoded) {
console.log(decoded.foo) // bar
});
// invalid token - synchronous
try {
var decoded = jwt.verify(token, 'wrong-secret');
} catch(err) {
// err
}
// invalid token
jwt.verify(token, 'wrong-secret', function(err, decoded) {
// err
// decoded undefined
});
// verify a token asymmetric
var cert = fs.readFileSync('public.pem'); // get public key
jwt.verify(token, cert, function(err, decoded) {
console.log(decoded.foo) // bar
});
// verify audience
var cert = fs.readFileSync('public.pem'); // get public key
jwt.verify(token, cert, { audience: 'urn:foo' }, function(err, decoded) {
// if audience mismatch, err == invalid audience
});
// verify issuer
var cert = fs.readFileSync('public.pem'); // get public key
jwt.verify(token, cert, { audience: 'urn:foo', issuer: 'urn:issuer' }, function(err, decoded) {
// if issuer mismatch, err == invalid issuer
});
// verify jwt id
var cert = fs.readFileSync('public.pem'); // get public key
jwt.verify(token, cert, { audience: 'urn:foo', issuer: 'urn:issuer', jwtid: 'jwtid' }, function(err, decoded) {
// if jwt id mismatch, err == invalid jwt id
});
// verify subject
var cert = fs.readFileSync('public.pem'); // get public key
jwt.verify(token, cert, { audience: 'urn:foo', issuer: 'urn:issuer', jwtid: 'jwtid', subject: 'subject' }, function(err, decoded) {
// if subject mismatch, err == invalid subject
});
// alg mismatch
var cert = fs.readFileSync('public.pem'); // get public key
jwt.verify(token, cert, { algorithms: ['RS256'] }, function (err, payload) {
// if token alg != RS256, err == invalid signature
});
// Verify using getKey callback
// Example uses https://github.com/auth0/node-jwks-rsa as a way to fetch the keys.
var jwksClient = require('jwks-rsa');
var client = jwksClient({
jwksUri: 'https://sandrino.auth0.com/.well-known/jwks.json'
});
function getKey(header, callback){
client.getSigningKey(header.kid, function(err, key) {
var signingKey = key.publicKey || key.rsaPublicKey;
callback(null, signingKey);
});
}
jwt.verify(token, getKey, options, function(err, decoded) {
console.log(decoded.foo) // bar
});
```
<details>
<summary><em></em>Need to peek into a JWT without verifying it? (Click to expand)</summary>
### jwt.decode(token [, options])
(Synchronous) Returns the decoded payload without verifying if the signature is valid.
> __Warning:__ This will __not__ verify whether the signature is valid. You should __not__ use this for untrusted messages. You most likely want to use `jwt.verify` instead.
> __Warning:__ When the token comes from an untrusted source (e.g. user input or external request), the returned decoded payload should be treated like any other user input; please make sure to sanitize and only work with properties that are expected
`token` is the JsonWebToken string
`options`:
* `json`: force JSON.parse on the payload even if the header doesn't contain `"typ":"JWT"`.
* `complete`: return an object with the decoded payload and header.
Example
```js
// get the decoded payload ignoring signature, no secretOrPrivateKey needed
var decoded = jwt.decode(token);
// get the decoded payload and header
var decoded = jwt.decode(token, {complete: true});
console.log(decoded.header);
console.log(decoded.payload)
```
</details>
## Errors & Codes
Possible thrown errors during verification.
Error is the first argument of the verification callback.
### TokenExpiredError
Thrown error if the token is expired.
Error object:
* name: 'TokenExpiredError'
* message: 'jwt expired'
* expiredAt: [ExpDate]
```js
jwt.verify(token, 'shhhhh', function(err, decoded) {
if (err) {
/*
err = {
name: 'TokenExpiredError',
message: 'jwt expired',
expiredAt: 1408621000
}
*/
}
});
```
### JsonWebTokenError
Error object:
* name: 'JsonWebTokenError'
* message:
* 'invalid token' - the header or payload could not be parsed
* 'jwt malformed' - the token does not have three components (delimited by a `.`)
* 'jwt signature is required'
* 'invalid signature'
* 'jwt audience invalid. expected: [OPTIONS AUDIENCE]'
* 'jwt issuer invalid. expected: [OPTIONS ISSUER]'
* 'jwt id invalid. expected: [OPTIONS JWT ID]'
* 'jwt subject invalid. expected: [OPTIONS SUBJECT]'
```js
jwt.verify(token, 'shhhhh', function(err, decoded) {
if (err) {
/*
err = {
name: 'JsonWebTokenError',
message: 'jwt malformed'
}
*/
}
});
```
### NotBeforeError
Thrown if current time is before the nbf claim.
Error object:
* name: 'NotBeforeError'
* message: 'jwt not active'
* date: 2018-10-04T16:10:44.000Z
```js
jwt.verify(token, 'shhhhh', function(err, decoded) {
if (err) {
/*
err = {
name: 'NotBeforeError',
message: 'jwt not active',
date: 2018-10-04T16:10:44.000Z
}
*/
}
});
```
## Algorithms supported
Array of supported algorithms. The following algorithms are currently supported.
| alg Parameter Value | Digital Signature or MAC Algorithm |
|---------------------|------------------------------------------------------------------------|
| HS256 | HMAC using SHA-256 hash algorithm |
| HS384 | HMAC using SHA-384 hash algorithm |
| HS512 | HMAC using SHA-512 hash algorithm |
| RS256 | RSASSA-PKCS1-v1_5 using SHA-256 hash algorithm |
| RS384 | RSASSA-PKCS1-v1_5 using SHA-384 hash algorithm |
| RS512 | RSASSA-PKCS1-v1_5 using SHA-512 hash algorithm |
| PS256 | RSASSA-PSS using SHA-256 hash algorithm (only node ^6.12.0 OR >=8.0.0) |
| PS384 | RSASSA-PSS using SHA-384 hash algorithm (only node ^6.12.0 OR >=8.0.0) |
| PS512 | RSASSA-PSS using SHA-512 hash algorithm (only node ^6.12.0 OR >=8.0.0) |
| ES256 | ECDSA using P-256 curve and SHA-256 hash algorithm |
| ES384 | ECDSA using P-384 curve and SHA-384 hash algorithm |
| ES512 | ECDSA using P-521 curve and SHA-512 hash algorithm |
| none | No digital signature or MAC value included |
## Refreshing JWTs
First of all, we recommend you to think carefully if auto-refreshing a JWT will not introduce any vulnerability in your system.
We are not comfortable including this as part of the library, however, you can take a look at [this example](https://gist.github.com/ziluvatar/a3feb505c4c0ec37059054537b38fc48) to show how this could be accomplished.
Apart from that example there are [an issue](https://github.com/auth0/node-jsonwebtoken/issues/122) and [a pull request](https://github.com/auth0/node-jsonwebtoken/pull/172) to get more knowledge about this topic.
# TODO
* X.509 certificate chain is not checked
## Issue Reporting
If you have found a bug or if you have a feature request, please report them at this repository issues section. Please do not report security vulnerabilities on the public GitHub issue tracker. The [Responsible Disclosure Program](https://auth0.com/whitehat) details the procedure for disclosing security issues.
## Author
[Auth0](https://auth0.com)
## License
This project is licensed under the MIT license. See the [LICENSE](LICENSE) file for more info.

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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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module.exports = {
decode: require('./decode'),
verify: require('./verify'),
sign: require('./sign'),
JsonWebTokenError: require('./lib/JsonWebTokenError'),
NotBeforeError: require('./lib/NotBeforeError'),
TokenExpiredError: require('./lib/TokenExpiredError'),
};

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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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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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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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const semver = require('semver');
module.exports = semver.satisfies(process.version, '>=15.7.0');

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var semver = require('semver');
module.exports = semver.satisfies(process.version, '^6.12.0 || >=8.0.0');

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const semver = require('semver');
module.exports = semver.satisfies(process.version, '>=16.9.0');

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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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const ASYMMETRIC_KEY_DETAILS_SUPPORTED = require('./asymmetricKeyDetailsSupported');
const RSA_PSS_KEY_DETAILS_SUPPORTED = require('./rsaPssKeyDetailsSupported');
const allowedAlgorithmsForKeys = {
'ec': ['ES256', 'ES384', 'ES512'],
'rsa': ['RS256', 'PS256', 'RS384', 'PS384', 'RS512', 'PS512'],
'rsa-pss': ['PS256', 'PS384', 'PS512']
};
const allowedCurves = {
ES256: 'prime256v1',
ES384: 'secp384r1',
ES512: 'secp521r1',
};
module.exports = function(algorithm, key) {
if (!algorithm || !key) return;
const keyType = key.asymmetricKeyType;
if (!keyType) return;
const allowedAlgorithms = allowedAlgorithmsForKeys[keyType];
if (!allowedAlgorithms) {
throw new Error(`Unknown key type "${keyType}".`);
}
if (!allowedAlgorithms.includes(algorithm)) {
throw new Error(`"alg" parameter for "${keyType}" key type must be one of: ${allowedAlgorithms.join(', ')}.`)
}
/*
* Ignore the next block from test coverage because it gets executed
* conditionally depending on the Node version. Not ignoring it would
* prevent us from reaching the target % of coverage for versions of
* Node under 15.7.0.
*/
/* istanbul ignore next */
if (ASYMMETRIC_KEY_DETAILS_SUPPORTED) {
switch (keyType) {
case 'ec':
const keyCurve = key.asymmetricKeyDetails.namedCurve;
const allowedCurve = allowedCurves[algorithm];
if (keyCurve !== allowedCurve) {
throw new Error(`"alg" parameter "${algorithm}" requires curve "${allowedCurve}".`);
}
break;
case 'rsa-pss':
if (RSA_PSS_KEY_DETAILS_SUPPORTED) {
const length = parseInt(algorithm.slice(-3), 10);
const { hashAlgorithm, mgf1HashAlgorithm, saltLength } = key.asymmetricKeyDetails;
if (hashAlgorithm !== `sha${length}` || mgf1HashAlgorithm !== hashAlgorithm) {
throw new Error(`Invalid key for this operation, its RSA-PSS parameters do not meet the requirements of "alg" ${algorithm}.`);
}
if (saltLength !== undefined && saltLength > length >> 3) {
throw new Error(`Invalid key for this operation, its RSA-PSS parameter saltLength does not meet the requirements of "alg" ${algorithm}.`)
}
}
break;
}
}
}

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../semver/bin/semver.js

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The ISC License
Copyright (c) Isaac Z. Schlueter and Contributors
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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semver(1) -- The semantic versioner for npm
===========================================
## Install
```bash
npm install semver
````
## Usage
As a node module:
```js
const semver = require('semver')
semver.valid('1.2.3') // '1.2.3'
semver.valid('a.b.c') // null
semver.clean(' =v1.2.3 ') // '1.2.3'
semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true
semver.gt('1.2.3', '9.8.7') // false
semver.lt('1.2.3', '9.8.7') // true
semver.minVersion('>=1.0.0') // '1.0.0'
semver.valid(semver.coerce('v2')) // '2.0.0'
semver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'
```
You can also just load the module for the function that you care about if
you'd like to minimize your footprint.
```js
// load the whole API at once in a single object
const semver = require('semver')
// or just load the bits you need
// all of them listed here, just pick and choose what you want
// classes
const SemVer = require('semver/classes/semver')
const Comparator = require('semver/classes/comparator')
const Range = require('semver/classes/range')
// functions for working with versions
const semverParse = require('semver/functions/parse')
const semverValid = require('semver/functions/valid')
const semverClean = require('semver/functions/clean')
const semverInc = require('semver/functions/inc')
const semverDiff = require('semver/functions/diff')
const semverMajor = require('semver/functions/major')
const semverMinor = require('semver/functions/minor')
const semverPatch = require('semver/functions/patch')
const semverPrerelease = require('semver/functions/prerelease')
const semverCompare = require('semver/functions/compare')
const semverRcompare = require('semver/functions/rcompare')
const semverCompareLoose = require('semver/functions/compare-loose')
const semverCompareBuild = require('semver/functions/compare-build')
const semverSort = require('semver/functions/sort')
const semverRsort = require('semver/functions/rsort')
// low-level comparators between versions
const semverGt = require('semver/functions/gt')
const semverLt = require('semver/functions/lt')
const semverEq = require('semver/functions/eq')
const semverNeq = require('semver/functions/neq')
const semverGte = require('semver/functions/gte')
const semverLte = require('semver/functions/lte')
const semverCmp = require('semver/functions/cmp')
const semverCoerce = require('semver/functions/coerce')
// working with ranges
const semverSatisfies = require('semver/functions/satisfies')
const semverMaxSatisfying = require('semver/ranges/max-satisfying')
const semverMinSatisfying = require('semver/ranges/min-satisfying')
const semverToComparators = require('semver/ranges/to-comparators')
const semverMinVersion = require('semver/ranges/min-version')
const semverValidRange = require('semver/ranges/valid')
const semverOutside = require('semver/ranges/outside')
const semverGtr = require('semver/ranges/gtr')
const semverLtr = require('semver/ranges/ltr')
const semverIntersects = require('semver/ranges/intersects')
const semverSimplifyRange = require('semver/ranges/simplify')
const semverRangeSubset = require('semver/ranges/subset')
```
As a command-line utility:
```
$ semver -h
A JavaScript implementation of the https://semver.org/ specification
Copyright Isaac Z. Schlueter
Usage: semver [options] <version> [<version> [...]]
Prints valid versions sorted by SemVer precedence
Options:
-r --range <range>
Print versions that match the specified range.
-i --increment [<level>]
Increment a version by the specified level. Level can
be one of: major, minor, patch, premajor, preminor,
prepatch, prerelease, or release. Default level is 'patch'.
Only one version may be specified.
--preid <identifier>
Identifier to be used to prefix premajor, preminor,
prepatch or prerelease version increments.
-l --loose
Interpret versions and ranges loosely
-n <0|1>
This is the base to be used for the prerelease identifier.
-p --include-prerelease
Always include prerelease versions in range matching
-c --coerce
Coerce a string into SemVer if possible
(does not imply --loose)
--rtl
Coerce version strings right to left
--ltr
Coerce version strings left to right (default)
Program exits successfully if any valid version satisfies
all supplied ranges, and prints all satisfying versions.
If no satisfying versions are found, then exits failure.
Versions are printed in ascending order, so supplying
multiple versions to the utility will just sort them.
```
## Versions
A "version" is described by the `v2.0.0` specification found at
<https://semver.org/>.
A leading `"="` or `"v"` character is stripped off and ignored.
Support for stripping a leading "v" is kept for compatibility with `v1.0.0` of the SemVer
specification but should not be used anymore.
## Ranges
A `version range` is a set of `comparators` that specify versions
that satisfy the range.
A `comparator` is composed of an `operator` and a `version`. The set
of primitive `operators` is:
* `<` Less than
* `<=` Less than or equal to
* `>` Greater than
* `>=` Greater than or equal to
* `=` Equal. If no operator is specified, then equality is assumed,
so this operator is optional but MAY be included.
For example, the comparator `>=1.2.7` would match the versions
`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`
or `1.1.0`. The comparator `>1` is equivalent to `>=2.0.0` and
would match the versions `2.0.0` and `3.1.0`, but not the versions
`1.0.1` or `1.1.0`.
Comparators can be joined by whitespace to form a `comparator set`,
which is satisfied by the **intersection** of all of the comparators
it includes.
A range is composed of one or more comparator sets, joined by `||`. A
version matches a range if and only if every comparator in at least
one of the `||`-separated comparator sets is satisfied by the version.
For example, the range `>=1.2.7 <1.3.0` would match the versions
`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,
or `1.1.0`.
The range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,
`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.
### Prerelease Tags
If a version has a prerelease tag (for example, `1.2.3-alpha.3`) then
it will only be allowed to satisfy comparator sets if at least one
comparator with the same `[major, minor, patch]` tuple also has a
prerelease tag.
For example, the range `>1.2.3-alpha.3` would be allowed to match the
version `1.2.3-alpha.7`, but it would *not* be satisfied by
`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically "greater
than" `1.2.3-alpha.3` according to the SemVer sort rules. The version
range only accepts prerelease tags on the `1.2.3` version.
Version `3.4.5` *would* satisfy the range because it does not have a
prerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.
The purpose of this behavior is twofold. First, prerelease versions
frequently are updated very quickly, and contain many breaking changes
that are (by the author's design) not yet fit for public consumption.
Therefore, by default, they are excluded from range-matching
semantics.
Second, a user who has opted into using a prerelease version has
indicated the intent to use *that specific* set of
alpha/beta/rc versions. By including a prerelease tag in the range,
the user is indicating that they are aware of the risk. However, it
is still not appropriate to assume that they have opted into taking a
similar risk on the *next* set of prerelease versions.
Note that this behavior can be suppressed (treating all prerelease
versions as if they were normal versions, for range-matching)
by setting the `includePrerelease` flag on the options
object to any
[functions](https://github.com/npm/node-semver#functions) that do
range matching.
#### Prerelease Identifiers
The method `.inc` takes an additional `identifier` string argument that
will append the value of the string as a prerelease identifier:
```javascript
semver.inc('1.2.3', 'prerelease', 'beta')
// '1.2.4-beta.0'
```
command-line example:
```bash
$ semver 1.2.3 -i prerelease --preid beta
1.2.4-beta.0
```
Which then can be used to increment further:
```bash
$ semver 1.2.4-beta.0 -i prerelease
1.2.4-beta.1
```
To get out of the prerelease phase, use the `release` option:
```bash
$ semver 1.2.4-beta.1 -i release
1.2.4
```
#### Prerelease Identifier Base
The method `.inc` takes an optional parameter 'identifierBase' string
that will let you let your prerelease number as zero-based or one-based.
Set to `false` to omit the prerelease number altogether.
If you do not specify this parameter, it will default to zero-based.
```javascript
semver.inc('1.2.3', 'prerelease', 'beta', '1')
// '1.2.4-beta.1'
```
```javascript
semver.inc('1.2.3', 'prerelease', 'beta', false)
// '1.2.4-beta'
```
command-line example:
```bash
$ semver 1.2.3 -i prerelease --preid beta -n 1
1.2.4-beta.1
```
```bash
$ semver 1.2.3 -i prerelease --preid beta -n false
1.2.4-beta
```
### Advanced Range Syntax
Advanced range syntax desugars to primitive comparators in
deterministic ways.
Advanced ranges may be combined in the same way as primitive
comparators using white space or `||`.
#### Hyphen Ranges `X.Y.Z - A.B.C`
Specifies an inclusive set.
* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`
If a partial version is provided as the first version in the inclusive
range, then the missing pieces are replaced with zeroes.
* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`
If a partial version is provided as the second version in the
inclusive range, then all versions that start with the supplied parts
of the tuple are accepted, but nothing that would be greater than the
provided tuple parts.
* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0-0`
* `1.2.3 - 2` := `>=1.2.3 <3.0.0-0`
#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`
Any of `X`, `x`, or `*` may be used to "stand in" for one of the
numeric values in the `[major, minor, patch]` tuple.
* `*` := `>=0.0.0` (Any non-prerelease version satisfies, unless
`includePrerelease` is specified, in which case any version at all
satisfies)
* `1.x` := `>=1.0.0 <2.0.0-0` (Matching major version)
* `1.2.x` := `>=1.2.0 <1.3.0-0` (Matching major and minor versions)
A partial version range is treated as an X-Range, so the special
character is in fact optional.
* `""` (empty string) := `*` := `>=0.0.0`
* `1` := `1.x.x` := `>=1.0.0 <2.0.0-0`
* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0-0`
#### Tilde Ranges `~1.2.3` `~1.2` `~1`
Allows patch-level changes if a minor version is specified on the
comparator. Allows minor-level changes if not.
* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0-0`
* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0-0` (Same as `1.2.x`)
* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0-0` (Same as `1.x`)
* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0-0`
* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0-0` (Same as `0.2.x`)
* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0-0` (Same as `0.x`)
* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0-0` Note that prereleases in
the `1.2.3` version will be allowed, if they are greater than or
equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but
`1.2.4-beta.2` would not, because it is a prerelease of a
different `[major, minor, patch]` tuple.
#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`
Allows changes that do not modify the left-most non-zero element in the
`[major, minor, patch]` tuple. In other words, this allows patch and
minor updates for versions `1.0.0` and above, patch updates for
versions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.
Many authors treat a `0.x` version as if the `x` were the major
"breaking-change" indicator.
Caret ranges are ideal when an author may make breaking changes
between `0.2.4` and `0.3.0` releases, which is a common practice.
However, it presumes that there will *not* be breaking changes between
`0.2.4` and `0.2.5`. It allows for changes that are presumed to be
additive (but non-breaking), according to commonly observed practices.
* `^1.2.3` := `>=1.2.3 <2.0.0-0`
* `^0.2.3` := `>=0.2.3 <0.3.0-0`
* `^0.0.3` := `>=0.0.3 <0.0.4-0`
* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0-0` Note that prereleases in
the `1.2.3` version will be allowed, if they are greater than or
equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but
`1.2.4-beta.2` would not, because it is a prerelease of a
different `[major, minor, patch]` tuple.
* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4-0` Note that prereleases in the
`0.0.3` version *only* will be allowed, if they are greater than or
equal to `beta`. So, `0.0.3-pr.2` would be allowed.
When parsing caret ranges, a missing `patch` value desugars to the
number `0`, but will allow flexibility within that value, even if the
major and minor versions are both `0`.
* `^1.2.x` := `>=1.2.0 <2.0.0-0`
* `^0.0.x` := `>=0.0.0 <0.1.0-0`
* `^0.0` := `>=0.0.0 <0.1.0-0`
A missing `minor` and `patch` values will desugar to zero, but also
allow flexibility within those values, even if the major version is
zero.
* `^1.x` := `>=1.0.0 <2.0.0-0`
* `^0.x` := `>=0.0.0 <1.0.0-0`
### Range Grammar
Putting all this together, here is a Backus-Naur grammar for ranges,
for the benefit of parser authors:
```bnf
range-set ::= range ( logical-or range ) *
logical-or ::= ( ' ' ) * '||' ( ' ' ) *
range ::= hyphen | simple ( ' ' simple ) * | ''
hyphen ::= partial ' - ' partial
simple ::= primitive | partial | tilde | caret
primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
xr ::= 'x' | 'X' | '*' | nr
nr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *
tilde ::= '~' partial
caret ::= '^' partial
qualifier ::= ( '-' pre )? ( '+' build )?
pre ::= parts
build ::= parts
parts ::= part ( '.' part ) *
part ::= nr | [-0-9A-Za-z]+
```
## Functions
All methods and classes take a final `options` object argument. All
options in this object are `false` by default. The options supported
are:
- `loose`: Be more forgiving about not-quite-valid semver strings.
(Any resulting output will always be 100% strict compliant, of
course.) For backwards compatibility reasons, if the `options`
argument is a boolean value instead of an object, it is interpreted
to be the `loose` param.
- `includePrerelease`: Set to suppress the [default
behavior](https://github.com/npm/node-semver#prerelease-tags) of
excluding prerelease tagged versions from ranges unless they are
explicitly opted into.
Strict-mode Comparators and Ranges will be strict about the SemVer
strings that they parse.
* `valid(v)`: Return the parsed version, or null if it's not valid.
* `inc(v, releaseType, options, identifier, identifierBase)`:
Return the version incremented by the release
type (`major`, `premajor`, `minor`, `preminor`, `patch`,
`prepatch`, `prerelease`, or `release`), or null if it's not valid
* `premajor` in one call will bump the version up to the next major
version and down to a prerelease of that major version.
`preminor`, and `prepatch` work the same way.
* If called from a non-prerelease version, `prerelease` will work the
same as `prepatch`. It increments the patch version and then makes a
prerelease. If the input version is already a prerelease it simply
increments it.
* `release` will remove any prerelease part of the version.
* `identifier` can be used to prefix `premajor`, `preminor`,
`prepatch`, or `prerelease` version increments. `identifierBase`
is the base to be used for the `prerelease` identifier.
* `prerelease(v)`: Returns an array of prerelease components, or null
if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`
* `major(v)`: Return the major version number.
* `minor(v)`: Return the minor version number.
* `patch(v)`: Return the patch version number.
* `intersects(r1, r2, loose)`: Return true if the two supplied ranges
or comparators intersect.
* `parse(v)`: Attempt to parse a string as a semantic version, returning either
a `SemVer` object or `null`.
### Comparison
* `gt(v1, v2)`: `v1 > v2`
* `gte(v1, v2)`: `v1 >= v2`
* `lt(v1, v2)`: `v1 < v2`
* `lte(v1, v2)`: `v1 <= v2`
* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,
even if they're not the same string. You already know how to
compare strings.
* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.
* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call
the corresponding function above. `"==="` and `"!=="` do simple
string comparison, but are included for completeness. Throws if an
invalid comparison string is provided.
* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if
`v2` is greater. Sorts in ascending order if passed to `Array.sort()`.
* `rcompare(v1, v2)`: The reverse of `compare`. Sorts an array of versions
in descending order when passed to `Array.sort()`.
* `compareBuild(v1, v2)`: The same as `compare` but considers `build` when two versions
are equal. Sorts in ascending order if passed to `Array.sort()`.
* `compareLoose(v1, v2)`: Short for `compare(v1, v2, { loose: true })`.
* `diff(v1, v2)`: Returns the difference between two versions by the release type
(`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),
or null if the versions are the same.
### Sorting
* `sort(versions)`: Returns a sorted array of versions based on the `compareBuild`
function.
* `rsort(versions)`: The reverse of `sort`. Returns an array of versions based on
the `compareBuild` function in descending order.
### Comparators
* `intersects(comparator)`: Return true if the comparators intersect
### Ranges
* `validRange(range)`: Return the valid range or null if it's not valid.
* `satisfies(version, range)`: Return true if the version satisfies the
range.
* `maxSatisfying(versions, range)`: Return the highest version in the list
that satisfies the range, or `null` if none of them do.
* `minSatisfying(versions, range)`: Return the lowest version in the list
that satisfies the range, or `null` if none of them do.
* `minVersion(range)`: Return the lowest version that can match
the given range.
* `gtr(version, range)`: Return `true` if the version is greater than all the
versions possible in the range.
* `ltr(version, range)`: Return `true` if the version is less than all the
versions possible in the range.
* `outside(version, range, hilo)`: Return true if the version is outside
the bounds of the range in either the high or low direction. The
`hilo` argument must be either the string `'>'` or `'<'`. (This is
the function called by `gtr` and `ltr`.)
* `intersects(range)`: Return true if any of the range comparators intersect.
* `simplifyRange(versions, range)`: Return a "simplified" range that
matches the same items in the `versions` list as the range specified. Note
that it does *not* guarantee that it would match the same versions in all
cases, only for the set of versions provided. This is useful when
generating ranges by joining together multiple versions with `||`
programmatically, to provide the user with something a bit more
ergonomic. If the provided range is shorter in string-length than the
generated range, then that is returned.
* `subset(subRange, superRange)`: Return `true` if the `subRange` range is
entirely contained by the `superRange` range.
Note that, since ranges may be non-contiguous, a version might not be
greater than a range, less than a range, *or* satisfy a range! For
example, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`
until `2.0.0`, so version `1.2.10` would not be greater than the
range (because `2.0.1` satisfies, which is higher), nor less than the
range (since `1.2.8` satisfies, which is lower), and it also does not
satisfy the range.
If you want to know if a version satisfies or does not satisfy a
range, use the `satisfies(version, range)` function.
### Coercion
* `coerce(version, options)`: Coerces a string to semver if possible
This aims to provide a very forgiving translation of a non-semver string to
semver. It looks for the first digit in a string and consumes all
remaining characters which satisfy at least a partial semver (e.g., `1`,
`1.2`, `1.2.3`) up to the max permitted length (256 characters). Longer
versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`). All
surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes
`3.4.0`). Only text which lacks digits will fail coercion (`version one`
is not valid). The maximum length for any semver component considered for
coercion is 16 characters; longer components will be ignored
(`10000000000000000.4.7.4` becomes `4.7.4`). The maximum value for any
semver component is `Number.MAX_SAFE_INTEGER || (2**53 - 1)`; higher value
components are invalid (`9999999999999999.4.7.4` is likely invalid).
If the `options.rtl` flag is set, then `coerce` will return the right-most
coercible tuple that does not share an ending index with a longer coercible
tuple. For example, `1.2.3.4` will return `2.3.4` in rtl mode, not
`4.0.0`. `1.2.3/4` will return `4.0.0`, because the `4` is not a part of
any other overlapping SemVer tuple.
If the `options.includePrerelease` flag is set, then the `coerce` result will contain
prerelease and build parts of a version. For example, `1.2.3.4-rc.1+rev.2`
will preserve prerelease `rc.1` and build `rev.2` in the result.
### Clean
* `clean(version)`: Clean a string to be a valid semver if possible
This will return a cleaned and trimmed semver version. If the provided
version is not valid a null will be returned. This does not work for
ranges.
ex.
* `s.clean(' = v 2.1.5foo')`: `null`
* `s.clean(' = v 2.1.5foo', { loose: true })`: `'2.1.5-foo'`
* `s.clean(' = v 2.1.5-foo')`: `null`
* `s.clean(' = v 2.1.5-foo', { loose: true })`: `'2.1.5-foo'`
* `s.clean('=v2.1.5')`: `'2.1.5'`
* `s.clean(' =v2.1.5')`: `'2.1.5'`
* `s.clean(' 2.1.5 ')`: `'2.1.5'`
* `s.clean('~1.0.0')`: `null`
## Constants
As a convenience, helper constants are exported to provide information about what `node-semver` supports:
### `RELEASE_TYPES`
- major
- premajor
- minor
- preminor
- patch
- prepatch
- prerelease
```
const semver = require('semver');
if (semver.RELEASE_TYPES.includes(arbitraryUserInput)) {
console.log('This is a valid release type!');
} else {
console.warn('This is NOT a valid release type!');
}
```
### `SEMVER_SPEC_VERSION`
2.0.0
```
const semver = require('semver');
console.log('We are currently using the semver specification version:', semver.SEMVER_SPEC_VERSION);
```
## Exported Modules
<!--
TODO: Make sure that all of these items are documented (classes aren't,
eg), and then pull the module name into the documentation for that specific
thing.
-->
You may pull in just the part of this semver utility that you need if you
are sensitive to packing and tree-shaking concerns. The main
`require('semver')` export uses getter functions to lazily load the parts
of the API that are used.
The following modules are available:
* `require('semver')`
* `require('semver/classes')`
* `require('semver/classes/comparator')`
* `require('semver/classes/range')`
* `require('semver/classes/semver')`
* `require('semver/functions/clean')`
* `require('semver/functions/cmp')`
* `require('semver/functions/coerce')`
* `require('semver/functions/compare')`
* `require('semver/functions/compare-build')`
* `require('semver/functions/compare-loose')`
* `require('semver/functions/diff')`
* `require('semver/functions/eq')`
* `require('semver/functions/gt')`
* `require('semver/functions/gte')`
* `require('semver/functions/inc')`
* `require('semver/functions/lt')`
* `require('semver/functions/lte')`
* `require('semver/functions/major')`
* `require('semver/functions/minor')`
* `require('semver/functions/neq')`
* `require('semver/functions/parse')`
* `require('semver/functions/patch')`
* `require('semver/functions/prerelease')`
* `require('semver/functions/rcompare')`
* `require('semver/functions/rsort')`
* `require('semver/functions/satisfies')`
* `require('semver/functions/sort')`
* `require('semver/functions/valid')`
* `require('semver/ranges/gtr')`
* `require('semver/ranges/intersects')`
* `require('semver/ranges/ltr')`
* `require('semver/ranges/max-satisfying')`
* `require('semver/ranges/min-satisfying')`
* `require('semver/ranges/min-version')`
* `require('semver/ranges/outside')`
* `require('semver/ranges/simplify')`
* `require('semver/ranges/subset')`
* `require('semver/ranges/to-comparators')`
* `require('semver/ranges/valid')`

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@@ -0,0 +1,191 @@
#!/usr/bin/env node
// Standalone semver comparison program.
// Exits successfully and prints matching version(s) if
// any supplied version is valid and passes all tests.
'use strict'
const argv = process.argv.slice(2)
let versions = []
const range = []
let inc = null
const version = require('../package.json').version
let loose = false
let includePrerelease = false
let coerce = false
let rtl = false
let identifier
let identifierBase
const semver = require('../')
const parseOptions = require('../internal/parse-options')
let reverse = false
let options = {}
const main = () => {
if (!argv.length) {
return help()
}
while (argv.length) {
let a = argv.shift()
const indexOfEqualSign = a.indexOf('=')
if (indexOfEqualSign !== -1) {
const value = a.slice(indexOfEqualSign + 1)
a = a.slice(0, indexOfEqualSign)
argv.unshift(value)
}
switch (a) {
case '-rv': case '-rev': case '--rev': case '--reverse':
reverse = true
break
case '-l': case '--loose':
loose = true
break
case '-p': case '--include-prerelease':
includePrerelease = true
break
case '-v': case '--version':
versions.push(argv.shift())
break
case '-i': case '--inc': case '--increment':
switch (argv[0]) {
case 'major': case 'minor': case 'patch': case 'prerelease':
case 'premajor': case 'preminor': case 'prepatch':
case 'release':
inc = argv.shift()
break
default:
inc = 'patch'
break
}
break
case '--preid':
identifier = argv.shift()
break
case '-r': case '--range':
range.push(argv.shift())
break
case '-n':
identifierBase = argv.shift()
if (identifierBase === 'false') {
identifierBase = false
}
break
case '-c': case '--coerce':
coerce = true
break
case '--rtl':
rtl = true
break
case '--ltr':
rtl = false
break
case '-h': case '--help': case '-?':
return help()
default:
versions.push(a)
break
}
}
options = parseOptions({ loose, includePrerelease, rtl })
versions = versions.map((v) => {
return coerce ? (semver.coerce(v, options) || { version: v }).version : v
}).filter((v) => {
return semver.valid(v)
})
if (!versions.length) {
return fail()
}
if (inc && (versions.length !== 1 || range.length)) {
return failInc()
}
for (let i = 0, l = range.length; i < l; i++) {
versions = versions.filter((v) => {
return semver.satisfies(v, range[i], options)
})
if (!versions.length) {
return fail()
}
}
versions
.sort((a, b) => semver[reverse ? 'rcompare' : 'compare'](a, b, options))
.map(v => semver.clean(v, options))
.map(v => inc ? semver.inc(v, inc, options, identifier, identifierBase) : v)
.forEach(v => console.log(v))
}
const failInc = () => {
console.error('--inc can only be used on a single version with no range')
fail()
}
const fail = () => process.exit(1)
const help = () => console.log(
`SemVer ${version}
A JavaScript implementation of the https://semver.org/ specification
Copyright Isaac Z. Schlueter
Usage: semver [options] <version> [<version> [...]]
Prints valid versions sorted by SemVer precedence
Options:
-r --range <range>
Print versions that match the specified range.
-i --increment [<level>]
Increment a version by the specified level. Level can
be one of: major, minor, patch, premajor, preminor,
prepatch, prerelease, or release. Default level is 'patch'.
Only one version may be specified.
--preid <identifier>
Identifier to be used to prefix premajor, preminor,
prepatch or prerelease version increments.
-l --loose
Interpret versions and ranges loosely
-p --include-prerelease
Always include prerelease versions in range matching
-c --coerce
Coerce a string into SemVer if possible
(does not imply --loose)
--rtl
Coerce version strings right to left
--ltr
Coerce version strings left to right (default)
-n <base>
Base number to be used for the prerelease identifier.
Can be either 0 or 1, or false to omit the number altogether.
Defaults to 0.
Program exits successfully if any valid version satisfies
all supplied ranges, and prints all satisfying versions.
If no satisfying versions are found, then exits failure.
Versions are printed in ascending order, so supplying
multiple versions to the utility will just sort them.`)
main()

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@@ -0,0 +1,143 @@
'use strict'
const ANY = Symbol('SemVer ANY')
// hoisted class for cyclic dependency
class Comparator {
static get ANY () {
return ANY
}
constructor (comp, options) {
options = parseOptions(options)
if (comp instanceof Comparator) {
if (comp.loose === !!options.loose) {
return comp
} else {
comp = comp.value
}
}
comp = comp.trim().split(/\s+/).join(' ')
debug('comparator', comp, options)
this.options = options
this.loose = !!options.loose
this.parse(comp)
if (this.semver === ANY) {
this.value = ''
} else {
this.value = this.operator + this.semver.version
}
debug('comp', this)
}
parse (comp) {
const r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR]
const m = comp.match(r)
if (!m) {
throw new TypeError(`Invalid comparator: ${comp}`)
}
this.operator = m[1] !== undefined ? m[1] : ''
if (this.operator === '=') {
this.operator = ''
}
// if it literally is just '>' or '' then allow anything.
if (!m[2]) {
this.semver = ANY
} else {
this.semver = new SemVer(m[2], this.options.loose)
}
}
toString () {
return this.value
}
test (version) {
debug('Comparator.test', version, this.options.loose)
if (this.semver === ANY || version === ANY) {
return true
}
if (typeof version === 'string') {
try {
version = new SemVer(version, this.options)
} catch (er) {
return false
}
}
return cmp(version, this.operator, this.semver, this.options)
}
intersects (comp, options) {
if (!(comp instanceof Comparator)) {
throw new TypeError('a Comparator is required')
}
if (this.operator === '') {
if (this.value === '') {
return true
}
return new Range(comp.value, options).test(this.value)
} else if (comp.operator === '') {
if (comp.value === '') {
return true
}
return new Range(this.value, options).test(comp.semver)
}
options = parseOptions(options)
// Special cases where nothing can possibly be lower
if (options.includePrerelease &&
(this.value === '<0.0.0-0' || comp.value === '<0.0.0-0')) {
return false
}
if (!options.includePrerelease &&
(this.value.startsWith('<0.0.0') || comp.value.startsWith('<0.0.0'))) {
return false
}
// Same direction increasing (> or >=)
if (this.operator.startsWith('>') && comp.operator.startsWith('>')) {
return true
}
// Same direction decreasing (< or <=)
if (this.operator.startsWith('<') && comp.operator.startsWith('<')) {
return true
}
// same SemVer and both sides are inclusive (<= or >=)
if (
(this.semver.version === comp.semver.version) &&
this.operator.includes('=') && comp.operator.includes('=')) {
return true
}
// opposite directions less than
if (cmp(this.semver, '<', comp.semver, options) &&
this.operator.startsWith('>') && comp.operator.startsWith('<')) {
return true
}
// opposite directions greater than
if (cmp(this.semver, '>', comp.semver, options) &&
this.operator.startsWith('<') && comp.operator.startsWith('>')) {
return true
}
return false
}
}
module.exports = Comparator
const parseOptions = require('../internal/parse-options')
const { safeRe: re, t } = require('../internal/re')
const cmp = require('../functions/cmp')
const debug = require('../internal/debug')
const SemVer = require('./semver')
const Range = require('./range')

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@@ -0,0 +1,7 @@
'use strict'
module.exports = {
SemVer: require('./semver.js'),
Range: require('./range.js'),
Comparator: require('./comparator.js'),
}

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@@ -0,0 +1,557 @@
'use strict'
const SPACE_CHARACTERS = /\s+/g
// hoisted class for cyclic dependency
class Range {
constructor (range, options) {
options = parseOptions(options)
if (range instanceof Range) {
if (
range.loose === !!options.loose &&
range.includePrerelease === !!options.includePrerelease
) {
return range
} else {
return new Range(range.raw, options)
}
}
if (range instanceof Comparator) {
// just put it in the set and return
this.raw = range.value
this.set = [[range]]
this.formatted = undefined
return this
}
this.options = options
this.loose = !!options.loose
this.includePrerelease = !!options.includePrerelease
// First reduce all whitespace as much as possible so we do not have to rely
// on potentially slow regexes like \s*. This is then stored and used for
// future error messages as well.
this.raw = range.trim().replace(SPACE_CHARACTERS, ' ')
// First, split on ||
this.set = this.raw
.split('||')
// map the range to a 2d array of comparators
.map(r => this.parseRange(r.trim()))
// throw out any comparator lists that are empty
// this generally means that it was not a valid range, which is allowed
// in loose mode, but will still throw if the WHOLE range is invalid.
.filter(c => c.length)
if (!this.set.length) {
throw new TypeError(`Invalid SemVer Range: ${this.raw}`)
}
// if we have any that are not the null set, throw out null sets.
if (this.set.length > 1) {
// keep the first one, in case they're all null sets
const first = this.set[0]
this.set = this.set.filter(c => !isNullSet(c[0]))
if (this.set.length === 0) {
this.set = [first]
} else if (this.set.length > 1) {
// if we have any that are *, then the range is just *
for (const c of this.set) {
if (c.length === 1 && isAny(c[0])) {
this.set = [c]
break
}
}
}
}
this.formatted = undefined
}
get range () {
if (this.formatted === undefined) {
this.formatted = ''
for (let i = 0; i < this.set.length; i++) {
if (i > 0) {
this.formatted += '||'
}
const comps = this.set[i]
for (let k = 0; k < comps.length; k++) {
if (k > 0) {
this.formatted += ' '
}
this.formatted += comps[k].toString().trim()
}
}
}
return this.formatted
}
format () {
return this.range
}
toString () {
return this.range
}
parseRange (range) {
// memoize range parsing for performance.
// this is a very hot path, and fully deterministic.
const memoOpts =
(this.options.includePrerelease && FLAG_INCLUDE_PRERELEASE) |
(this.options.loose && FLAG_LOOSE)
const memoKey = memoOpts + ':' + range
const cached = cache.get(memoKey)
if (cached) {
return cached
}
const loose = this.options.loose
// `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
const hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE]
range = range.replace(hr, hyphenReplace(this.options.includePrerelease))
debug('hyphen replace', range)
// `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
range = range.replace(re[t.COMPARATORTRIM], comparatorTrimReplace)
debug('comparator trim', range)
// `~ 1.2.3` => `~1.2.3`
range = range.replace(re[t.TILDETRIM], tildeTrimReplace)
debug('tilde trim', range)
// `^ 1.2.3` => `^1.2.3`
range = range.replace(re[t.CARETTRIM], caretTrimReplace)
debug('caret trim', range)
// At this point, the range is completely trimmed and
// ready to be split into comparators.
let rangeList = range
.split(' ')
.map(comp => parseComparator(comp, this.options))
.join(' ')
.split(/\s+/)
// >=0.0.0 is equivalent to *
.map(comp => replaceGTE0(comp, this.options))
if (loose) {
// in loose mode, throw out any that are not valid comparators
rangeList = rangeList.filter(comp => {
debug('loose invalid filter', comp, this.options)
return !!comp.match(re[t.COMPARATORLOOSE])
})
}
debug('range list', rangeList)
// if any comparators are the null set, then replace with JUST null set
// if more than one comparator, remove any * comparators
// also, don't include the same comparator more than once
const rangeMap = new Map()
const comparators = rangeList.map(comp => new Comparator(comp, this.options))
for (const comp of comparators) {
if (isNullSet(comp)) {
return [comp]
}
rangeMap.set(comp.value, comp)
}
if (rangeMap.size > 1 && rangeMap.has('')) {
rangeMap.delete('')
}
const result = [...rangeMap.values()]
cache.set(memoKey, result)
return result
}
intersects (range, options) {
if (!(range instanceof Range)) {
throw new TypeError('a Range is required')
}
return this.set.some((thisComparators) => {
return (
isSatisfiable(thisComparators, options) &&
range.set.some((rangeComparators) => {
return (
isSatisfiable(rangeComparators, options) &&
thisComparators.every((thisComparator) => {
return rangeComparators.every((rangeComparator) => {
return thisComparator.intersects(rangeComparator, options)
})
})
)
})
)
})
}
// if ANY of the sets match ALL of its comparators, then pass
test (version) {
if (!version) {
return false
}
if (typeof version === 'string') {
try {
version = new SemVer(version, this.options)
} catch (er) {
return false
}
}
for (let i = 0; i < this.set.length; i++) {
if (testSet(this.set[i], version, this.options)) {
return true
}
}
return false
}
}
module.exports = Range
const LRU = require('../internal/lrucache')
const cache = new LRU()
const parseOptions = require('../internal/parse-options')
const Comparator = require('./comparator')
const debug = require('../internal/debug')
const SemVer = require('./semver')
const {
safeRe: re,
t,
comparatorTrimReplace,
tildeTrimReplace,
caretTrimReplace,
} = require('../internal/re')
const { FLAG_INCLUDE_PRERELEASE, FLAG_LOOSE } = require('../internal/constants')
const isNullSet = c => c.value === '<0.0.0-0'
const isAny = c => c.value === ''
// take a set of comparators and determine whether there
// exists a version which can satisfy it
const isSatisfiable = (comparators, options) => {
let result = true
const remainingComparators = comparators.slice()
let testComparator = remainingComparators.pop()
while (result && remainingComparators.length) {
result = remainingComparators.every((otherComparator) => {
return testComparator.intersects(otherComparator, options)
})
testComparator = remainingComparators.pop()
}
return result
}
// comprised of xranges, tildes, stars, and gtlt's at this point.
// already replaced the hyphen ranges
// turn into a set of JUST comparators.
const parseComparator = (comp, options) => {
comp = comp.replace(re[t.BUILD], '')
debug('comp', comp, options)
comp = replaceCarets(comp, options)
debug('caret', comp)
comp = replaceTildes(comp, options)
debug('tildes', comp)
comp = replaceXRanges(comp, options)
debug('xrange', comp)
comp = replaceStars(comp, options)
debug('stars', comp)
return comp
}
const isX = id => !id || id.toLowerCase() === 'x' || id === '*'
// ~, ~> --> * (any, kinda silly)
// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0-0
// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0-0
// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0-0
// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0-0
// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0-0
// ~0.0.1 --> >=0.0.1 <0.1.0-0
const replaceTildes = (comp, options) => {
return comp
.trim()
.split(/\s+/)
.map((c) => replaceTilde(c, options))
.join(' ')
}
const replaceTilde = (comp, options) => {
const r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE]
return comp.replace(r, (_, M, m, p, pr) => {
debug('tilde', comp, _, M, m, p, pr)
let ret
if (isX(M)) {
ret = ''
} else if (isX(m)) {
ret = `>=${M}.0.0 <${+M + 1}.0.0-0`
} else if (isX(p)) {
// ~1.2 == >=1.2.0 <1.3.0-0
ret = `>=${M}.${m}.0 <${M}.${+m + 1}.0-0`
} else if (pr) {
debug('replaceTilde pr', pr)
ret = `>=${M}.${m}.${p}-${pr
} <${M}.${+m + 1}.0-0`
} else {
// ~1.2.3 == >=1.2.3 <1.3.0-0
ret = `>=${M}.${m}.${p
} <${M}.${+m + 1}.0-0`
}
debug('tilde return', ret)
return ret
})
}
// ^ --> * (any, kinda silly)
// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0-0
// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0-0
// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0-0
// ^1.2.3 --> >=1.2.3 <2.0.0-0
// ^1.2.0 --> >=1.2.0 <2.0.0-0
// ^0.0.1 --> >=0.0.1 <0.0.2-0
// ^0.1.0 --> >=0.1.0 <0.2.0-0
const replaceCarets = (comp, options) => {
return comp
.trim()
.split(/\s+/)
.map((c) => replaceCaret(c, options))
.join(' ')
}
const replaceCaret = (comp, options) => {
debug('caret', comp, options)
const r = options.loose ? re[t.CARETLOOSE] : re[t.CARET]
const z = options.includePrerelease ? '-0' : ''
return comp.replace(r, (_, M, m, p, pr) => {
debug('caret', comp, _, M, m, p, pr)
let ret
if (isX(M)) {
ret = ''
} else if (isX(m)) {
ret = `>=${M}.0.0${z} <${+M + 1}.0.0-0`
} else if (isX(p)) {
if (M === '0') {
ret = `>=${M}.${m}.0${z} <${M}.${+m + 1}.0-0`
} else {
ret = `>=${M}.${m}.0${z} <${+M + 1}.0.0-0`
}
} else if (pr) {
debug('replaceCaret pr', pr)
if (M === '0') {
if (m === '0') {
ret = `>=${M}.${m}.${p}-${pr
} <${M}.${m}.${+p + 1}-0`
} else {
ret = `>=${M}.${m}.${p}-${pr
} <${M}.${+m + 1}.0-0`
}
} else {
ret = `>=${M}.${m}.${p}-${pr
} <${+M + 1}.0.0-0`
}
} else {
debug('no pr')
if (M === '0') {
if (m === '0') {
ret = `>=${M}.${m}.${p
}${z} <${M}.${m}.${+p + 1}-0`
} else {
ret = `>=${M}.${m}.${p
}${z} <${M}.${+m + 1}.0-0`
}
} else {
ret = `>=${M}.${m}.${p
} <${+M + 1}.0.0-0`
}
}
debug('caret return', ret)
return ret
})
}
const replaceXRanges = (comp, options) => {
debug('replaceXRanges', comp, options)
return comp
.split(/\s+/)
.map((c) => replaceXRange(c, options))
.join(' ')
}
const replaceXRange = (comp, options) => {
comp = comp.trim()
const r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE]
return comp.replace(r, (ret, gtlt, M, m, p, pr) => {
debug('xRange', comp, ret, gtlt, M, m, p, pr)
const xM = isX(M)
const xm = xM || isX(m)
const xp = xm || isX(p)
const anyX = xp
if (gtlt === '=' && anyX) {
gtlt = ''
}
// if we're including prereleases in the match, then we need
// to fix this to -0, the lowest possible prerelease value
pr = options.includePrerelease ? '-0' : ''
if (xM) {
if (gtlt === '>' || gtlt === '<') {
// nothing is allowed
ret = '<0.0.0-0'
} else {
// nothing is forbidden
ret = '*'
}
} else if (gtlt && anyX) {
// we know patch is an x, because we have any x at all.
// replace X with 0
if (xm) {
m = 0
}
p = 0
if (gtlt === '>') {
// >1 => >=2.0.0
// >1.2 => >=1.3.0
gtlt = '>='
if (xm) {
M = +M + 1
m = 0
p = 0
} else {
m = +m + 1
p = 0
}
} else if (gtlt === '<=') {
// <=0.7.x is actually <0.8.0, since any 0.7.x should
// pass. Similarly, <=7.x is actually <8.0.0, etc.
gtlt = '<'
if (xm) {
M = +M + 1
} else {
m = +m + 1
}
}
if (gtlt === '<') {
pr = '-0'
}
ret = `${gtlt + M}.${m}.${p}${pr}`
} else if (xm) {
ret = `>=${M}.0.0${pr} <${+M + 1}.0.0-0`
} else if (xp) {
ret = `>=${M}.${m}.0${pr
} <${M}.${+m + 1}.0-0`
}
debug('xRange return', ret)
return ret
})
}
// Because * is AND-ed with everything else in the comparator,
// and '' means "any version", just remove the *s entirely.
const replaceStars = (comp, options) => {
debug('replaceStars', comp, options)
// Looseness is ignored here. star is always as loose as it gets!
return comp
.trim()
.replace(re[t.STAR], '')
}
const replaceGTE0 = (comp, options) => {
debug('replaceGTE0', comp, options)
return comp
.trim()
.replace(re[options.includePrerelease ? t.GTE0PRE : t.GTE0], '')
}
// This function is passed to string.replace(re[t.HYPHENRANGE])
// M, m, patch, prerelease, build
// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
// 1.2.3 - 3.4 => >=1.2.0 <3.5.0-0 Any 3.4.x will do
// 1.2 - 3.4 => >=1.2.0 <3.5.0-0
// TODO build?
const hyphenReplace = incPr => ($0,
from, fM, fm, fp, fpr, fb,
to, tM, tm, tp, tpr) => {
if (isX(fM)) {
from = ''
} else if (isX(fm)) {
from = `>=${fM}.0.0${incPr ? '-0' : ''}`
} else if (isX(fp)) {
from = `>=${fM}.${fm}.0${incPr ? '-0' : ''}`
} else if (fpr) {
from = `>=${from}`
} else {
from = `>=${from}${incPr ? '-0' : ''}`
}
if (isX(tM)) {
to = ''
} else if (isX(tm)) {
to = `<${+tM + 1}.0.0-0`
} else if (isX(tp)) {
to = `<${tM}.${+tm + 1}.0-0`
} else if (tpr) {
to = `<=${tM}.${tm}.${tp}-${tpr}`
} else if (incPr) {
to = `<${tM}.${tm}.${+tp + 1}-0`
} else {
to = `<=${to}`
}
return `${from} ${to}`.trim()
}
const testSet = (set, version, options) => {
for (let i = 0; i < set.length; i++) {
if (!set[i].test(version)) {
return false
}
}
if (version.prerelease.length && !options.includePrerelease) {
// Find the set of versions that are allowed to have prereleases
// For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
// That should allow `1.2.3-pr.2` to pass.
// However, `1.2.4-alpha.notready` should NOT be allowed,
// even though it's within the range set by the comparators.
for (let i = 0; i < set.length; i++) {
debug(set[i].semver)
if (set[i].semver === Comparator.ANY) {
continue
}
if (set[i].semver.prerelease.length > 0) {
const allowed = set[i].semver
if (allowed.major === version.major &&
allowed.minor === version.minor &&
allowed.patch === version.patch) {
return true
}
}
}
// Version has a -pre, but it's not one of the ones we like.
return false
}
return true
}

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'use strict'
const debug = require('../internal/debug')
const { MAX_LENGTH, MAX_SAFE_INTEGER } = require('../internal/constants')
const { safeRe: re, t } = require('../internal/re')
const parseOptions = require('../internal/parse-options')
const { compareIdentifiers } = require('../internal/identifiers')
class SemVer {
constructor (version, options) {
options = parseOptions(options)
if (version instanceof SemVer) {
if (version.loose === !!options.loose &&
version.includePrerelease === !!options.includePrerelease) {
return version
} else {
version = version.version
}
} else if (typeof version !== 'string') {
throw new TypeError(`Invalid version. Must be a string. Got type "${typeof version}".`)
}
if (version.length > MAX_LENGTH) {
throw new TypeError(
`version is longer than ${MAX_LENGTH} characters`
)
}
debug('SemVer', version, options)
this.options = options
this.loose = !!options.loose
// this isn't actually relevant for versions, but keep it so that we
// don't run into trouble passing this.options around.
this.includePrerelease = !!options.includePrerelease
const m = version.trim().match(options.loose ? re[t.LOOSE] : re[t.FULL])
if (!m) {
throw new TypeError(`Invalid Version: ${version}`)
}
this.raw = version
// these are actually numbers
this.major = +m[1]
this.minor = +m[2]
this.patch = +m[3]
if (this.major > MAX_SAFE_INTEGER || this.major < 0) {
throw new TypeError('Invalid major version')
}
if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {
throw new TypeError('Invalid minor version')
}
if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {
throw new TypeError('Invalid patch version')
}
// numberify any prerelease numeric ids
if (!m[4]) {
this.prerelease = []
} else {
this.prerelease = m[4].split('.').map((id) => {
if (/^[0-9]+$/.test(id)) {
const num = +id
if (num >= 0 && num < MAX_SAFE_INTEGER) {
return num
}
}
return id
})
}
this.build = m[5] ? m[5].split('.') : []
this.format()
}
format () {
this.version = `${this.major}.${this.minor}.${this.patch}`
if (this.prerelease.length) {
this.version += `-${this.prerelease.join('.')}`
}
return this.version
}
toString () {
return this.version
}
compare (other) {
debug('SemVer.compare', this.version, this.options, other)
if (!(other instanceof SemVer)) {
if (typeof other === 'string' && other === this.version) {
return 0
}
other = new SemVer(other, this.options)
}
if (other.version === this.version) {
return 0
}
return this.compareMain(other) || this.comparePre(other)
}
compareMain (other) {
if (!(other instanceof SemVer)) {
other = new SemVer(other, this.options)
}
if (this.major < other.major) {
return -1
}
if (this.major > other.major) {
return 1
}
if (this.minor < other.minor) {
return -1
}
if (this.minor > other.minor) {
return 1
}
if (this.patch < other.patch) {
return -1
}
if (this.patch > other.patch) {
return 1
}
return 0
}
comparePre (other) {
if (!(other instanceof SemVer)) {
other = new SemVer(other, this.options)
}
// NOT having a prerelease is > having one
if (this.prerelease.length && !other.prerelease.length) {
return -1
} else if (!this.prerelease.length && other.prerelease.length) {
return 1
} else if (!this.prerelease.length && !other.prerelease.length) {
return 0
}
let i = 0
do {
const a = this.prerelease[i]
const b = other.prerelease[i]
debug('prerelease compare', i, a, b)
if (a === undefined && b === undefined) {
return 0
} else if (b === undefined) {
return 1
} else if (a === undefined) {
return -1
} else if (a === b) {
continue
} else {
return compareIdentifiers(a, b)
}
} while (++i)
}
compareBuild (other) {
if (!(other instanceof SemVer)) {
other = new SemVer(other, this.options)
}
let i = 0
do {
const a = this.build[i]
const b = other.build[i]
debug('build compare', i, a, b)
if (a === undefined && b === undefined) {
return 0
} else if (b === undefined) {
return 1
} else if (a === undefined) {
return -1
} else if (a === b) {
continue
} else {
return compareIdentifiers(a, b)
}
} while (++i)
}
// preminor will bump the version up to the next minor release, and immediately
// down to pre-release. premajor and prepatch work the same way.
inc (release, identifier, identifierBase) {
if (release.startsWith('pre')) {
if (!identifier && identifierBase === false) {
throw new Error('invalid increment argument: identifier is empty')
}
// Avoid an invalid semver results
if (identifier) {
const match = `-${identifier}`.match(this.options.loose ? re[t.PRERELEASELOOSE] : re[t.PRERELEASE])
if (!match || match[1] !== identifier) {
throw new Error(`invalid identifier: ${identifier}`)
}
}
}
switch (release) {
case 'premajor':
this.prerelease.length = 0
this.patch = 0
this.minor = 0
this.major++
this.inc('pre', identifier, identifierBase)
break
case 'preminor':
this.prerelease.length = 0
this.patch = 0
this.minor++
this.inc('pre', identifier, identifierBase)
break
case 'prepatch':
// If this is already a prerelease, it will bump to the next version
// drop any prereleases that might already exist, since they are not
// relevant at this point.
this.prerelease.length = 0
this.inc('patch', identifier, identifierBase)
this.inc('pre', identifier, identifierBase)
break
// If the input is a non-prerelease version, this acts the same as
// prepatch.
case 'prerelease':
if (this.prerelease.length === 0) {
this.inc('patch', identifier, identifierBase)
}
this.inc('pre', identifier, identifierBase)
break
case 'release':
if (this.prerelease.length === 0) {
throw new Error(`version ${this.raw} is not a prerelease`)
}
this.prerelease.length = 0
break
case 'major':
// If this is a pre-major version, bump up to the same major version.
// Otherwise increment major.
// 1.0.0-5 bumps to 1.0.0
// 1.1.0 bumps to 2.0.0
if (
this.minor !== 0 ||
this.patch !== 0 ||
this.prerelease.length === 0
) {
this.major++
}
this.minor = 0
this.patch = 0
this.prerelease = []
break
case 'minor':
// If this is a pre-minor version, bump up to the same minor version.
// Otherwise increment minor.
// 1.2.0-5 bumps to 1.2.0
// 1.2.1 bumps to 1.3.0
if (this.patch !== 0 || this.prerelease.length === 0) {
this.minor++
}
this.patch = 0
this.prerelease = []
break
case 'patch':
// If this is not a pre-release version, it will increment the patch.
// If it is a pre-release it will bump up to the same patch version.
// 1.2.0-5 patches to 1.2.0
// 1.2.0 patches to 1.2.1
if (this.prerelease.length === 0) {
this.patch++
}
this.prerelease = []
break
// This probably shouldn't be used publicly.
// 1.0.0 'pre' would become 1.0.0-0 which is the wrong direction.
case 'pre': {
const base = Number(identifierBase) ? 1 : 0
if (this.prerelease.length === 0) {
this.prerelease = [base]
} else {
let i = this.prerelease.length
while (--i >= 0) {
if (typeof this.prerelease[i] === 'number') {
this.prerelease[i]++
i = -2
}
}
if (i === -1) {
// didn't increment anything
if (identifier === this.prerelease.join('.') && identifierBase === false) {
throw new Error('invalid increment argument: identifier already exists')
}
this.prerelease.push(base)
}
}
if (identifier) {
// 1.2.0-beta.1 bumps to 1.2.0-beta.2,
// 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
let prerelease = [identifier, base]
if (identifierBase === false) {
prerelease = [identifier]
}
if (compareIdentifiers(this.prerelease[0], identifier) === 0) {
if (isNaN(this.prerelease[1])) {
this.prerelease = prerelease
}
} else {
this.prerelease = prerelease
}
}
break
}
default:
throw new Error(`invalid increment argument: ${release}`)
}
this.raw = this.format()
if (this.build.length) {
this.raw += `+${this.build.join('.')}`
}
return this
}
}
module.exports = SemVer

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@@ -0,0 +1,8 @@
'use strict'
const parse = require('./parse')
const clean = (version, options) => {
const s = parse(version.trim().replace(/^[=v]+/, ''), options)
return s ? s.version : null
}
module.exports = clean

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@@ -0,0 +1,54 @@
'use strict'
const eq = require('./eq')
const neq = require('./neq')
const gt = require('./gt')
const gte = require('./gte')
const lt = require('./lt')
const lte = require('./lte')
const cmp = (a, op, b, loose) => {
switch (op) {
case '===':
if (typeof a === 'object') {
a = a.version
}
if (typeof b === 'object') {
b = b.version
}
return a === b
case '!==':
if (typeof a === 'object') {
a = a.version
}
if (typeof b === 'object') {
b = b.version
}
return a !== b
case '':
case '=':
case '==':
return eq(a, b, loose)
case '!=':
return neq(a, b, loose)
case '>':
return gt(a, b, loose)
case '>=':
return gte(a, b, loose)
case '<':
return lt(a, b, loose)
case '<=':
return lte(a, b, loose)
default:
throw new TypeError(`Invalid operator: ${op}`)
}
}
module.exports = cmp

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@@ -0,0 +1,62 @@
'use strict'
const SemVer = require('../classes/semver')
const parse = require('./parse')
const { safeRe: re, t } = require('../internal/re')
const coerce = (version, options) => {
if (version instanceof SemVer) {
return version
}
if (typeof version === 'number') {
version = String(version)
}
if (typeof version !== 'string') {
return null
}
options = options || {}
let match = null
if (!options.rtl) {
match = version.match(options.includePrerelease ? re[t.COERCEFULL] : re[t.COERCE])
} else {
// Find the right-most coercible string that does not share
// a terminus with a more left-ward coercible string.
// Eg, '1.2.3.4' wants to coerce '2.3.4', not '3.4' or '4'
// With includePrerelease option set, '1.2.3.4-rc' wants to coerce '2.3.4-rc', not '2.3.4'
//
// Walk through the string checking with a /g regexp
// Manually set the index so as to pick up overlapping matches.
// Stop when we get a match that ends at the string end, since no
// coercible string can be more right-ward without the same terminus.
const coerceRtlRegex = options.includePrerelease ? re[t.COERCERTLFULL] : re[t.COERCERTL]
let next
while ((next = coerceRtlRegex.exec(version)) &&
(!match || match.index + match[0].length !== version.length)
) {
if (!match ||
next.index + next[0].length !== match.index + match[0].length) {
match = next
}
coerceRtlRegex.lastIndex = next.index + next[1].length + next[2].length
}
// leave it in a clean state
coerceRtlRegex.lastIndex = -1
}
if (match === null) {
return null
}
const major = match[2]
const minor = match[3] || '0'
const patch = match[4] || '0'
const prerelease = options.includePrerelease && match[5] ? `-${match[5]}` : ''
const build = options.includePrerelease && match[6] ? `+${match[6]}` : ''
return parse(`${major}.${minor}.${patch}${prerelease}${build}`, options)
}
module.exports = coerce

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@@ -0,0 +1,9 @@
'use strict'
const SemVer = require('../classes/semver')
const compareBuild = (a, b, loose) => {
const versionA = new SemVer(a, loose)
const versionB = new SemVer(b, loose)
return versionA.compare(versionB) || versionA.compareBuild(versionB)
}
module.exports = compareBuild

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@@ -0,0 +1,5 @@
'use strict'
const compare = require('./compare')
const compareLoose = (a, b) => compare(a, b, true)
module.exports = compareLoose

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@@ -0,0 +1,7 @@
'use strict'
const SemVer = require('../classes/semver')
const compare = (a, b, loose) =>
new SemVer(a, loose).compare(new SemVer(b, loose))
module.exports = compare

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'use strict'
const parse = require('./parse.js')
const diff = (version1, version2) => {
const v1 = parse(version1, null, true)
const v2 = parse(version2, null, true)
const comparison = v1.compare(v2)
if (comparison === 0) {
return null
}
const v1Higher = comparison > 0
const highVersion = v1Higher ? v1 : v2
const lowVersion = v1Higher ? v2 : v1
const highHasPre = !!highVersion.prerelease.length
const lowHasPre = !!lowVersion.prerelease.length
if (lowHasPre && !highHasPre) {
// Going from prerelease -> no prerelease requires some special casing
// If the low version has only a major, then it will always be a major
// Some examples:
// 1.0.0-1 -> 1.0.0
// 1.0.0-1 -> 1.1.1
// 1.0.0-1 -> 2.0.0
if (!lowVersion.patch && !lowVersion.minor) {
return 'major'
}
// If the main part has no difference
if (lowVersion.compareMain(highVersion) === 0) {
if (lowVersion.minor && !lowVersion.patch) {
return 'minor'
}
return 'patch'
}
}
// add the `pre` prefix if we are going to a prerelease version
const prefix = highHasPre ? 'pre' : ''
if (v1.major !== v2.major) {
return prefix + 'major'
}
if (v1.minor !== v2.minor) {
return prefix + 'minor'
}
if (v1.patch !== v2.patch) {
return prefix + 'patch'
}
// high and low are preleases
return 'prerelease'
}
module.exports = diff

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@@ -0,0 +1,5 @@
'use strict'
const compare = require('./compare')
const eq = (a, b, loose) => compare(a, b, loose) === 0
module.exports = eq

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@@ -0,0 +1,5 @@
'use strict'
const compare = require('./compare')
const gt = (a, b, loose) => compare(a, b, loose) > 0
module.exports = gt

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@@ -0,0 +1,5 @@
'use strict'
const compare = require('./compare')
const gte = (a, b, loose) => compare(a, b, loose) >= 0
module.exports = gte

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@@ -0,0 +1,21 @@
'use strict'
const SemVer = require('../classes/semver')
const inc = (version, release, options, identifier, identifierBase) => {
if (typeof (options) === 'string') {
identifierBase = identifier
identifier = options
options = undefined
}
try {
return new SemVer(
version instanceof SemVer ? version.version : version,
options
).inc(release, identifier, identifierBase).version
} catch (er) {
return null
}
}
module.exports = inc

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@@ -0,0 +1,5 @@
'use strict'
const compare = require('./compare')
const lt = (a, b, loose) => compare(a, b, loose) < 0
module.exports = lt

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@@ -0,0 +1,5 @@
'use strict'
const compare = require('./compare')
const lte = (a, b, loose) => compare(a, b, loose) <= 0
module.exports = lte

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@@ -0,0 +1,5 @@
'use strict'
const SemVer = require('../classes/semver')
const major = (a, loose) => new SemVer(a, loose).major
module.exports = major

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@@ -0,0 +1,5 @@
'use strict'
const SemVer = require('../classes/semver')
const minor = (a, loose) => new SemVer(a, loose).minor
module.exports = minor

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@@ -0,0 +1,5 @@
'use strict'
const compare = require('./compare')
const neq = (a, b, loose) => compare(a, b, loose) !== 0
module.exports = neq

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@@ -0,0 +1,18 @@
'use strict'
const SemVer = require('../classes/semver')
const parse = (version, options, throwErrors = false) => {
if (version instanceof SemVer) {
return version
}
try {
return new SemVer(version, options)
} catch (er) {
if (!throwErrors) {
return null
}
throw er
}
}
module.exports = parse

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@@ -0,0 +1,5 @@
'use strict'
const SemVer = require('../classes/semver')
const patch = (a, loose) => new SemVer(a, loose).patch
module.exports = patch

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@@ -0,0 +1,8 @@
'use strict'
const parse = require('./parse')
const prerelease = (version, options) => {
const parsed = parse(version, options)
return (parsed && parsed.prerelease.length) ? parsed.prerelease : null
}
module.exports = prerelease

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@@ -0,0 +1,5 @@
'use strict'
const compare = require('./compare')
const rcompare = (a, b, loose) => compare(b, a, loose)
module.exports = rcompare

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@@ -0,0 +1,5 @@
'use strict'
const compareBuild = require('./compare-build')
const rsort = (list, loose) => list.sort((a, b) => compareBuild(b, a, loose))
module.exports = rsort

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@@ -0,0 +1,12 @@
'use strict'
const Range = require('../classes/range')
const satisfies = (version, range, options) => {
try {
range = new Range(range, options)
} catch (er) {
return false
}
return range.test(version)
}
module.exports = satisfies

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@@ -0,0 +1,5 @@
'use strict'
const compareBuild = require('./compare-build')
const sort = (list, loose) => list.sort((a, b) => compareBuild(a, b, loose))
module.exports = sort

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@@ -0,0 +1,8 @@
'use strict'
const parse = require('./parse')
const valid = (version, options) => {
const v = parse(version, options)
return v ? v.version : null
}
module.exports = valid

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@@ -0,0 +1,91 @@
'use strict'
// just pre-load all the stuff that index.js lazily exports
const internalRe = require('./internal/re')
const constants = require('./internal/constants')
const SemVer = require('./classes/semver')
const identifiers = require('./internal/identifiers')
const parse = require('./functions/parse')
const valid = require('./functions/valid')
const clean = require('./functions/clean')
const inc = require('./functions/inc')
const diff = require('./functions/diff')
const major = require('./functions/major')
const minor = require('./functions/minor')
const patch = require('./functions/patch')
const prerelease = require('./functions/prerelease')
const compare = require('./functions/compare')
const rcompare = require('./functions/rcompare')
const compareLoose = require('./functions/compare-loose')
const compareBuild = require('./functions/compare-build')
const sort = require('./functions/sort')
const rsort = require('./functions/rsort')
const gt = require('./functions/gt')
const lt = require('./functions/lt')
const eq = require('./functions/eq')
const neq = require('./functions/neq')
const gte = require('./functions/gte')
const lte = require('./functions/lte')
const cmp = require('./functions/cmp')
const coerce = require('./functions/coerce')
const Comparator = require('./classes/comparator')
const Range = require('./classes/range')
const satisfies = require('./functions/satisfies')
const toComparators = require('./ranges/to-comparators')
const maxSatisfying = require('./ranges/max-satisfying')
const minSatisfying = require('./ranges/min-satisfying')
const minVersion = require('./ranges/min-version')
const validRange = require('./ranges/valid')
const outside = require('./ranges/outside')
const gtr = require('./ranges/gtr')
const ltr = require('./ranges/ltr')
const intersects = require('./ranges/intersects')
const simplifyRange = require('./ranges/simplify')
const subset = require('./ranges/subset')
module.exports = {
parse,
valid,
clean,
inc,
diff,
major,
minor,
patch,
prerelease,
compare,
rcompare,
compareLoose,
compareBuild,
sort,
rsort,
gt,
lt,
eq,
neq,
gte,
lte,
cmp,
coerce,
Comparator,
Range,
satisfies,
toComparators,
maxSatisfying,
minSatisfying,
minVersion,
validRange,
outside,
gtr,
ltr,
intersects,
simplifyRange,
subset,
SemVer,
re: internalRe.re,
src: internalRe.src,
tokens: internalRe.t,
SEMVER_SPEC_VERSION: constants.SEMVER_SPEC_VERSION,
RELEASE_TYPES: constants.RELEASE_TYPES,
compareIdentifiers: identifiers.compareIdentifiers,
rcompareIdentifiers: identifiers.rcompareIdentifiers,
}

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@@ -0,0 +1,37 @@
'use strict'
// Note: this is the semver.org version of the spec that it implements
// Not necessarily the package version of this code.
const SEMVER_SPEC_VERSION = '2.0.0'
const MAX_LENGTH = 256
const MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER ||
/* istanbul ignore next */ 9007199254740991
// Max safe segment length for coercion.
const MAX_SAFE_COMPONENT_LENGTH = 16
// Max safe length for a build identifier. The max length minus 6 characters for
// the shortest version with a build 0.0.0+BUILD.
const MAX_SAFE_BUILD_LENGTH = MAX_LENGTH - 6
const RELEASE_TYPES = [
'major',
'premajor',
'minor',
'preminor',
'patch',
'prepatch',
'prerelease',
]
module.exports = {
MAX_LENGTH,
MAX_SAFE_COMPONENT_LENGTH,
MAX_SAFE_BUILD_LENGTH,
MAX_SAFE_INTEGER,
RELEASE_TYPES,
SEMVER_SPEC_VERSION,
FLAG_INCLUDE_PRERELEASE: 0b001,
FLAG_LOOSE: 0b010,
}

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@@ -0,0 +1,11 @@
'use strict'
const debug = (
typeof process === 'object' &&
process.env &&
process.env.NODE_DEBUG &&
/\bsemver\b/i.test(process.env.NODE_DEBUG)
) ? (...args) => console.error('SEMVER', ...args)
: () => {}
module.exports = debug

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@@ -0,0 +1,29 @@
'use strict'
const numeric = /^[0-9]+$/
const compareIdentifiers = (a, b) => {
if (typeof a === 'number' && typeof b === 'number') {
return a === b ? 0 : a < b ? -1 : 1
}
const anum = numeric.test(a)
const bnum = numeric.test(b)
if (anum && bnum) {
a = +a
b = +b
}
return a === b ? 0
: (anum && !bnum) ? -1
: (bnum && !anum) ? 1
: a < b ? -1
: 1
}
const rcompareIdentifiers = (a, b) => compareIdentifiers(b, a)
module.exports = {
compareIdentifiers,
rcompareIdentifiers,
}

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@@ -0,0 +1,42 @@
'use strict'
class LRUCache {
constructor () {
this.max = 1000
this.map = new Map()
}
get (key) {
const value = this.map.get(key)
if (value === undefined) {
return undefined
} else {
// Remove the key from the map and add it to the end
this.map.delete(key)
this.map.set(key, value)
return value
}
}
delete (key) {
return this.map.delete(key)
}
set (key, value) {
const deleted = this.delete(key)
if (!deleted && value !== undefined) {
// If cache is full, delete the least recently used item
if (this.map.size >= this.max) {
const firstKey = this.map.keys().next().value
this.delete(firstKey)
}
this.map.set(key, value)
}
return this
}
}
module.exports = LRUCache

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@@ -0,0 +1,17 @@
'use strict'
// parse out just the options we care about
const looseOption = Object.freeze({ loose: true })
const emptyOpts = Object.freeze({ })
const parseOptions = options => {
if (!options) {
return emptyOpts
}
if (typeof options !== 'object') {
return looseOption
}
return options
}
module.exports = parseOptions

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@@ -0,0 +1,223 @@
'use strict'
const {
MAX_SAFE_COMPONENT_LENGTH,
MAX_SAFE_BUILD_LENGTH,
MAX_LENGTH,
} = require('./constants')
const debug = require('./debug')
exports = module.exports = {}
// The actual regexps go on exports.re
const re = exports.re = []
const safeRe = exports.safeRe = []
const src = exports.src = []
const safeSrc = exports.safeSrc = []
const t = exports.t = {}
let R = 0
const LETTERDASHNUMBER = '[a-zA-Z0-9-]'
// Replace some greedy regex tokens to prevent regex dos issues. These regex are
// used internally via the safeRe object since all inputs in this library get
// normalized first to trim and collapse all extra whitespace. The original
// regexes are exported for userland consumption and lower level usage. A
// future breaking change could export the safer regex only with a note that
// all input should have extra whitespace removed.
const safeRegexReplacements = [
['\\s', 1],
['\\d', MAX_LENGTH],
[LETTERDASHNUMBER, MAX_SAFE_BUILD_LENGTH],
]
const makeSafeRegex = (value) => {
for (const [token, max] of safeRegexReplacements) {
value = value
.split(`${token}*`).join(`${token}{0,${max}}`)
.split(`${token}+`).join(`${token}{1,${max}}`)
}
return value
}
const createToken = (name, value, isGlobal) => {
const safe = makeSafeRegex(value)
const index = R++
debug(name, index, value)
t[name] = index
src[index] = value
safeSrc[index] = safe
re[index] = new RegExp(value, isGlobal ? 'g' : undefined)
safeRe[index] = new RegExp(safe, isGlobal ? 'g' : undefined)
}
// The following Regular Expressions can be used for tokenizing,
// validating, and parsing SemVer version strings.
// ## Numeric Identifier
// A single `0`, or a non-zero digit followed by zero or more digits.
createToken('NUMERICIDENTIFIER', '0|[1-9]\\d*')
createToken('NUMERICIDENTIFIERLOOSE', '\\d+')
// ## Non-numeric Identifier
// Zero or more digits, followed by a letter or hyphen, and then zero or
// more letters, digits, or hyphens.
createToken('NONNUMERICIDENTIFIER', `\\d*[a-zA-Z-]${LETTERDASHNUMBER}*`)
// ## Main Version
// Three dot-separated numeric identifiers.
createToken('MAINVERSION', `(${src[t.NUMERICIDENTIFIER]})\\.` +
`(${src[t.NUMERICIDENTIFIER]})\\.` +
`(${src[t.NUMERICIDENTIFIER]})`)
createToken('MAINVERSIONLOOSE', `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` +
`(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` +
`(${src[t.NUMERICIDENTIFIERLOOSE]})`)
// ## Pre-release Version Identifier
// A numeric identifier, or a non-numeric identifier.
// Non-numberic identifiers include numberic identifiers but can be longer.
// Therefore non-numberic identifiers must go first.
createToken('PRERELEASEIDENTIFIER', `(?:${src[t.NONNUMERICIDENTIFIER]
}|${src[t.NUMERICIDENTIFIER]})`)
createToken('PRERELEASEIDENTIFIERLOOSE', `(?:${src[t.NONNUMERICIDENTIFIER]
}|${src[t.NUMERICIDENTIFIERLOOSE]})`)
// ## Pre-release Version
// Hyphen, followed by one or more dot-separated pre-release version
// identifiers.
createToken('PRERELEASE', `(?:-(${src[t.PRERELEASEIDENTIFIER]
}(?:\\.${src[t.PRERELEASEIDENTIFIER]})*))`)
createToken('PRERELEASELOOSE', `(?:-?(${src[t.PRERELEASEIDENTIFIERLOOSE]
}(?:\\.${src[t.PRERELEASEIDENTIFIERLOOSE]})*))`)
// ## Build Metadata Identifier
// Any combination of digits, letters, or hyphens.
createToken('BUILDIDENTIFIER', `${LETTERDASHNUMBER}+`)
// ## Build Metadata
// Plus sign, followed by one or more period-separated build metadata
// identifiers.
createToken('BUILD', `(?:\\+(${src[t.BUILDIDENTIFIER]
}(?:\\.${src[t.BUILDIDENTIFIER]})*))`)
// ## Full Version String
// A main version, followed optionally by a pre-release version and
// build metadata.
// Note that the only major, minor, patch, and pre-release sections of
// the version string are capturing groups. The build metadata is not a
// capturing group, because it should not ever be used in version
// comparison.
createToken('FULLPLAIN', `v?${src[t.MAINVERSION]
}${src[t.PRERELEASE]}?${
src[t.BUILD]}?`)
createToken('FULL', `^${src[t.FULLPLAIN]}$`)
// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
// common in the npm registry.
createToken('LOOSEPLAIN', `[v=\\s]*${src[t.MAINVERSIONLOOSE]
}${src[t.PRERELEASELOOSE]}?${
src[t.BUILD]}?`)
createToken('LOOSE', `^${src[t.LOOSEPLAIN]}$`)
createToken('GTLT', '((?:<|>)?=?)')
// Something like "2.*" or "1.2.x".
// Note that "x.x" is a valid xRange identifer, meaning "any version"
// Only the first item is strictly required.
createToken('XRANGEIDENTIFIERLOOSE', `${src[t.NUMERICIDENTIFIERLOOSE]}|x|X|\\*`)
createToken('XRANGEIDENTIFIER', `${src[t.NUMERICIDENTIFIER]}|x|X|\\*`)
createToken('XRANGEPLAIN', `[v=\\s]*(${src[t.XRANGEIDENTIFIER]})` +
`(?:\\.(${src[t.XRANGEIDENTIFIER]})` +
`(?:\\.(${src[t.XRANGEIDENTIFIER]})` +
`(?:${src[t.PRERELEASE]})?${
src[t.BUILD]}?` +
`)?)?`)
createToken('XRANGEPLAINLOOSE', `[v=\\s]*(${src[t.XRANGEIDENTIFIERLOOSE]})` +
`(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` +
`(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` +
`(?:${src[t.PRERELEASELOOSE]})?${
src[t.BUILD]}?` +
`)?)?`)
createToken('XRANGE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAIN]}$`)
createToken('XRANGELOOSE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAINLOOSE]}$`)
// Coercion.
// Extract anything that could conceivably be a part of a valid semver
createToken('COERCEPLAIN', `${'(^|[^\\d])' +
'(\\d{1,'}${MAX_SAFE_COMPONENT_LENGTH}})` +
`(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` +
`(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?`)
createToken('COERCE', `${src[t.COERCEPLAIN]}(?:$|[^\\d])`)
createToken('COERCEFULL', src[t.COERCEPLAIN] +
`(?:${src[t.PRERELEASE]})?` +
`(?:${src[t.BUILD]})?` +
`(?:$|[^\\d])`)
createToken('COERCERTL', src[t.COERCE], true)
createToken('COERCERTLFULL', src[t.COERCEFULL], true)
// Tilde ranges.
// Meaning is "reasonably at or greater than"
createToken('LONETILDE', '(?:~>?)')
createToken('TILDETRIM', `(\\s*)${src[t.LONETILDE]}\\s+`, true)
exports.tildeTrimReplace = '$1~'
createToken('TILDE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAIN]}$`)
createToken('TILDELOOSE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAINLOOSE]}$`)
// Caret ranges.
// Meaning is "at least and backwards compatible with"
createToken('LONECARET', '(?:\\^)')
createToken('CARETTRIM', `(\\s*)${src[t.LONECARET]}\\s+`, true)
exports.caretTrimReplace = '$1^'
createToken('CARET', `^${src[t.LONECARET]}${src[t.XRANGEPLAIN]}$`)
createToken('CARETLOOSE', `^${src[t.LONECARET]}${src[t.XRANGEPLAINLOOSE]}$`)
// A simple gt/lt/eq thing, or just "" to indicate "any version"
createToken('COMPARATORLOOSE', `^${src[t.GTLT]}\\s*(${src[t.LOOSEPLAIN]})$|^$`)
createToken('COMPARATOR', `^${src[t.GTLT]}\\s*(${src[t.FULLPLAIN]})$|^$`)
// An expression to strip any whitespace between the gtlt and the thing
// it modifies, so that `> 1.2.3` ==> `>1.2.3`
createToken('COMPARATORTRIM', `(\\s*)${src[t.GTLT]
}\\s*(${src[t.LOOSEPLAIN]}|${src[t.XRANGEPLAIN]})`, true)
exports.comparatorTrimReplace = '$1$2$3'
// Something like `1.2.3 - 1.2.4`
// Note that these all use the loose form, because they'll be
// checked against either the strict or loose comparator form
// later.
createToken('HYPHENRANGE', `^\\s*(${src[t.XRANGEPLAIN]})` +
`\\s+-\\s+` +
`(${src[t.XRANGEPLAIN]})` +
`\\s*$`)
createToken('HYPHENRANGELOOSE', `^\\s*(${src[t.XRANGEPLAINLOOSE]})` +
`\\s+-\\s+` +
`(${src[t.XRANGEPLAINLOOSE]})` +
`\\s*$`)
// Star ranges basically just allow anything at all.
createToken('STAR', '(<|>)?=?\\s*\\*')
// >=0.0.0 is like a star
createToken('GTE0', '^\\s*>=\\s*0\\.0\\.0\\s*$')
createToken('GTE0PRE', '^\\s*>=\\s*0\\.0\\.0-0\\s*$')

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{
"name": "semver",
"version": "7.7.3",
"description": "The semantic version parser used by npm.",
"main": "index.js",
"scripts": {
"test": "tap",
"snap": "tap",
"lint": "npm run eslint",
"postlint": "template-oss-check",
"lintfix": "npm run eslint -- --fix",
"posttest": "npm run lint",
"template-oss-apply": "template-oss-apply --force",
"eslint": "eslint \"**/*.{js,cjs,ts,mjs,jsx,tsx}\""
},
"devDependencies": {
"@npmcli/eslint-config": "^5.0.0",
"@npmcli/template-oss": "4.25.1",
"benchmark": "^2.1.4",
"tap": "^16.0.0"
},
"license": "ISC",
"repository": {
"type": "git",
"url": "git+https://github.com/npm/node-semver.git"
},
"bin": {
"semver": "bin/semver.js"
},
"files": [
"bin/",
"lib/",
"classes/",
"functions/",
"internal/",
"ranges/",
"index.js",
"preload.js",
"range.bnf"
],
"tap": {
"timeout": 30,
"coverage-map": "map.js",
"nyc-arg": [
"--exclude",
"tap-snapshots/**"
]
},
"engines": {
"node": ">=10"
},
"author": "GitHub Inc.",
"templateOSS": {
"//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",
"version": "4.25.1",
"engines": ">=10",
"distPaths": [
"classes/",
"functions/",
"internal/",
"ranges/",
"index.js",
"preload.js",
"range.bnf"
],
"allowPaths": [
"/classes/",
"/functions/",
"/internal/",
"/ranges/",
"/index.js",
"/preload.js",
"/range.bnf",
"/benchmarks"
],
"publish": "true"
}
}

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'use strict'
// XXX remove in v8 or beyond
module.exports = require('./index.js')

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range-set ::= range ( logical-or range ) *
logical-or ::= ( ' ' ) * '||' ( ' ' ) *
range ::= hyphen | simple ( ' ' simple ) * | ''
hyphen ::= partial ' - ' partial
simple ::= primitive | partial | tilde | caret
primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
xr ::= 'x' | 'X' | '*' | nr
nr ::= '0' | [1-9] ( [0-9] ) *
tilde ::= '~' partial
caret ::= '^' partial
qualifier ::= ( '-' pre )? ( '+' build )?
pre ::= parts
build ::= parts
parts ::= part ( '.' part ) *
part ::= nr | [-0-9A-Za-z]+

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'use strict'
// Determine if version is greater than all the versions possible in the range.
const outside = require('./outside')
const gtr = (version, range, options) => outside(version, range, '>', options)
module.exports = gtr

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'use strict'
const Range = require('../classes/range')
const intersects = (r1, r2, options) => {
r1 = new Range(r1, options)
r2 = new Range(r2, options)
return r1.intersects(r2, options)
}
module.exports = intersects

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'use strict'
const outside = require('./outside')
// Determine if version is less than all the versions possible in the range
const ltr = (version, range, options) => outside(version, range, '<', options)
module.exports = ltr

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'use strict'
const SemVer = require('../classes/semver')
const Range = require('../classes/range')
const maxSatisfying = (versions, range, options) => {
let max = null
let maxSV = null
let rangeObj = null
try {
rangeObj = new Range(range, options)
} catch (er) {
return null
}
versions.forEach((v) => {
if (rangeObj.test(v)) {
// satisfies(v, range, options)
if (!max || maxSV.compare(v) === -1) {
// compare(max, v, true)
max = v
maxSV = new SemVer(max, options)
}
}
})
return max
}
module.exports = maxSatisfying

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'use strict'
const SemVer = require('../classes/semver')
const Range = require('../classes/range')
const minSatisfying = (versions, range, options) => {
let min = null
let minSV = null
let rangeObj = null
try {
rangeObj = new Range(range, options)
} catch (er) {
return null
}
versions.forEach((v) => {
if (rangeObj.test(v)) {
// satisfies(v, range, options)
if (!min || minSV.compare(v) === 1) {
// compare(min, v, true)
min = v
minSV = new SemVer(min, options)
}
}
})
return min
}
module.exports = minSatisfying

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'use strict'
const SemVer = require('../classes/semver')
const Range = require('../classes/range')
const gt = require('../functions/gt')
const minVersion = (range, loose) => {
range = new Range(range, loose)
let minver = new SemVer('0.0.0')
if (range.test(minver)) {
return minver
}
minver = new SemVer('0.0.0-0')
if (range.test(minver)) {
return minver
}
minver = null
for (let i = 0; i < range.set.length; ++i) {
const comparators = range.set[i]
let setMin = null
comparators.forEach((comparator) => {
// Clone to avoid manipulating the comparator's semver object.
const compver = new SemVer(comparator.semver.version)
switch (comparator.operator) {
case '>':
if (compver.prerelease.length === 0) {
compver.patch++
} else {
compver.prerelease.push(0)
}
compver.raw = compver.format()
/* fallthrough */
case '':
case '>=':
if (!setMin || gt(compver, setMin)) {
setMin = compver
}
break
case '<':
case '<=':
/* Ignore maximum versions */
break
/* istanbul ignore next */
default:
throw new Error(`Unexpected operation: ${comparator.operator}`)
}
})
if (setMin && (!minver || gt(minver, setMin))) {
minver = setMin
}
}
if (minver && range.test(minver)) {
return minver
}
return null
}
module.exports = minVersion

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'use strict'
const SemVer = require('../classes/semver')
const Comparator = require('../classes/comparator')
const { ANY } = Comparator
const Range = require('../classes/range')
const satisfies = require('../functions/satisfies')
const gt = require('../functions/gt')
const lt = require('../functions/lt')
const lte = require('../functions/lte')
const gte = require('../functions/gte')
const outside = (version, range, hilo, options) => {
version = new SemVer(version, options)
range = new Range(range, options)
let gtfn, ltefn, ltfn, comp, ecomp
switch (hilo) {
case '>':
gtfn = gt
ltefn = lte
ltfn = lt
comp = '>'
ecomp = '>='
break
case '<':
gtfn = lt
ltefn = gte
ltfn = gt
comp = '<'
ecomp = '<='
break
default:
throw new TypeError('Must provide a hilo val of "<" or ">"')
}
// If it satisfies the range it is not outside
if (satisfies(version, range, options)) {
return false
}
// From now on, variable terms are as if we're in "gtr" mode.
// but note that everything is flipped for the "ltr" function.
for (let i = 0; i < range.set.length; ++i) {
const comparators = range.set[i]
let high = null
let low = null
comparators.forEach((comparator) => {
if (comparator.semver === ANY) {
comparator = new Comparator('>=0.0.0')
}
high = high || comparator
low = low || comparator
if (gtfn(comparator.semver, high.semver, options)) {
high = comparator
} else if (ltfn(comparator.semver, low.semver, options)) {
low = comparator
}
})
// If the edge version comparator has a operator then our version
// isn't outside it
if (high.operator === comp || high.operator === ecomp) {
return false
}
// If the lowest version comparator has an operator and our version
// is less than it then it isn't higher than the range
if ((!low.operator || low.operator === comp) &&
ltefn(version, low.semver)) {
return false
} else if (low.operator === ecomp && ltfn(version, low.semver)) {
return false
}
}
return true
}
module.exports = outside

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'use strict'
// given a set of versions and a range, create a "simplified" range
// that includes the same versions that the original range does
// If the original range is shorter than the simplified one, return that.
const satisfies = require('../functions/satisfies.js')
const compare = require('../functions/compare.js')
module.exports = (versions, range, options) => {
const set = []
let first = null
let prev = null
const v = versions.sort((a, b) => compare(a, b, options))
for (const version of v) {
const included = satisfies(version, range, options)
if (included) {
prev = version
if (!first) {
first = version
}
} else {
if (prev) {
set.push([first, prev])
}
prev = null
first = null
}
}
if (first) {
set.push([first, null])
}
const ranges = []
for (const [min, max] of set) {
if (min === max) {
ranges.push(min)
} else if (!max && min === v[0]) {
ranges.push('*')
} else if (!max) {
ranges.push(`>=${min}`)
} else if (min === v[0]) {
ranges.push(`<=${max}`)
} else {
ranges.push(`${min} - ${max}`)
}
}
const simplified = ranges.join(' || ')
const original = typeof range.raw === 'string' ? range.raw : String(range)
return simplified.length < original.length ? simplified : range
}

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'use strict'
const Range = require('../classes/range.js')
const Comparator = require('../classes/comparator.js')
const { ANY } = Comparator
const satisfies = require('../functions/satisfies.js')
const compare = require('../functions/compare.js')
// Complex range `r1 || r2 || ...` is a subset of `R1 || R2 || ...` iff:
// - Every simple range `r1, r2, ...` is a null set, OR
// - Every simple range `r1, r2, ...` which is not a null set is a subset of
// some `R1, R2, ...`
//
// Simple range `c1 c2 ...` is a subset of simple range `C1 C2 ...` iff:
// - If c is only the ANY comparator
// - If C is only the ANY comparator, return true
// - Else if in prerelease mode, return false
// - else replace c with `[>=0.0.0]`
// - If C is only the ANY comparator
// - if in prerelease mode, return true
// - else replace C with `[>=0.0.0]`
// - Let EQ be the set of = comparators in c
// - If EQ is more than one, return true (null set)
// - Let GT be the highest > or >= comparator in c
// - Let LT be the lowest < or <= comparator in c
// - If GT and LT, and GT.semver > LT.semver, return true (null set)
// - If any C is a = range, and GT or LT are set, return false
// - If EQ
// - If GT, and EQ does not satisfy GT, return true (null set)
// - If LT, and EQ does not satisfy LT, return true (null set)
// - If EQ satisfies every C, return true
// - Else return false
// - If GT
// - If GT.semver is lower than any > or >= comp in C, return false
// - If GT is >=, and GT.semver does not satisfy every C, return false
// - If GT.semver has a prerelease, and not in prerelease mode
// - If no C has a prerelease and the GT.semver tuple, return false
// - If LT
// - If LT.semver is greater than any < or <= comp in C, return false
// - If LT is <=, and LT.semver does not satisfy every C, return false
// - If GT.semver has a prerelease, and not in prerelease mode
// - If no C has a prerelease and the LT.semver tuple, return false
// - Else return true
const subset = (sub, dom, options = {}) => {
if (sub === dom) {
return true
}
sub = new Range(sub, options)
dom = new Range(dom, options)
let sawNonNull = false
OUTER: for (const simpleSub of sub.set) {
for (const simpleDom of dom.set) {
const isSub = simpleSubset(simpleSub, simpleDom, options)
sawNonNull = sawNonNull || isSub !== null
if (isSub) {
continue OUTER
}
}
// the null set is a subset of everything, but null simple ranges in
// a complex range should be ignored. so if we saw a non-null range,
// then we know this isn't a subset, but if EVERY simple range was null,
// then it is a subset.
if (sawNonNull) {
return false
}
}
return true
}
const minimumVersionWithPreRelease = [new Comparator('>=0.0.0-0')]
const minimumVersion = [new Comparator('>=0.0.0')]
const simpleSubset = (sub, dom, options) => {
if (sub === dom) {
return true
}
if (sub.length === 1 && sub[0].semver === ANY) {
if (dom.length === 1 && dom[0].semver === ANY) {
return true
} else if (options.includePrerelease) {
sub = minimumVersionWithPreRelease
} else {
sub = minimumVersion
}
}
if (dom.length === 1 && dom[0].semver === ANY) {
if (options.includePrerelease) {
return true
} else {
dom = minimumVersion
}
}
const eqSet = new Set()
let gt, lt
for (const c of sub) {
if (c.operator === '>' || c.operator === '>=') {
gt = higherGT(gt, c, options)
} else if (c.operator === '<' || c.operator === '<=') {
lt = lowerLT(lt, c, options)
} else {
eqSet.add(c.semver)
}
}
if (eqSet.size > 1) {
return null
}
let gtltComp
if (gt && lt) {
gtltComp = compare(gt.semver, lt.semver, options)
if (gtltComp > 0) {
return null
} else if (gtltComp === 0 && (gt.operator !== '>=' || lt.operator !== '<=')) {
return null
}
}
// will iterate one or zero times
for (const eq of eqSet) {
if (gt && !satisfies(eq, String(gt), options)) {
return null
}
if (lt && !satisfies(eq, String(lt), options)) {
return null
}
for (const c of dom) {
if (!satisfies(eq, String(c), options)) {
return false
}
}
return true
}
let higher, lower
let hasDomLT, hasDomGT
// if the subset has a prerelease, we need a comparator in the superset
// with the same tuple and a prerelease, or it's not a subset
let needDomLTPre = lt &&
!options.includePrerelease &&
lt.semver.prerelease.length ? lt.semver : false
let needDomGTPre = gt &&
!options.includePrerelease &&
gt.semver.prerelease.length ? gt.semver : false
// exception: <1.2.3-0 is the same as <1.2.3
if (needDomLTPre && needDomLTPre.prerelease.length === 1 &&
lt.operator === '<' && needDomLTPre.prerelease[0] === 0) {
needDomLTPre = false
}
for (const c of dom) {
hasDomGT = hasDomGT || c.operator === '>' || c.operator === '>='
hasDomLT = hasDomLT || c.operator === '<' || c.operator === '<='
if (gt) {
if (needDomGTPre) {
if (c.semver.prerelease && c.semver.prerelease.length &&
c.semver.major === needDomGTPre.major &&
c.semver.minor === needDomGTPre.minor &&
c.semver.patch === needDomGTPre.patch) {
needDomGTPre = false
}
}
if (c.operator === '>' || c.operator === '>=') {
higher = higherGT(gt, c, options)
if (higher === c && higher !== gt) {
return false
}
} else if (gt.operator === '>=' && !satisfies(gt.semver, String(c), options)) {
return false
}
}
if (lt) {
if (needDomLTPre) {
if (c.semver.prerelease && c.semver.prerelease.length &&
c.semver.major === needDomLTPre.major &&
c.semver.minor === needDomLTPre.minor &&
c.semver.patch === needDomLTPre.patch) {
needDomLTPre = false
}
}
if (c.operator === '<' || c.operator === '<=') {
lower = lowerLT(lt, c, options)
if (lower === c && lower !== lt) {
return false
}
} else if (lt.operator === '<=' && !satisfies(lt.semver, String(c), options)) {
return false
}
}
if (!c.operator && (lt || gt) && gtltComp !== 0) {
return false
}
}
// if there was a < or >, and nothing in the dom, then must be false
// UNLESS it was limited by another range in the other direction.
// Eg, >1.0.0 <1.0.1 is still a subset of <2.0.0
if (gt && hasDomLT && !lt && gtltComp !== 0) {
return false
}
if (lt && hasDomGT && !gt && gtltComp !== 0) {
return false
}
// we needed a prerelease range in a specific tuple, but didn't get one
// then this isn't a subset. eg >=1.2.3-pre is not a subset of >=1.0.0,
// because it includes prereleases in the 1.2.3 tuple
if (needDomGTPre || needDomLTPre) {
return false
}
return true
}
// >=1.2.3 is lower than >1.2.3
const higherGT = (a, b, options) => {
if (!a) {
return b
}
const comp = compare(a.semver, b.semver, options)
return comp > 0 ? a
: comp < 0 ? b
: b.operator === '>' && a.operator === '>=' ? b
: a
}
// <=1.2.3 is higher than <1.2.3
const lowerLT = (a, b, options) => {
if (!a) {
return b
}
const comp = compare(a.semver, b.semver, options)
return comp < 0 ? a
: comp > 0 ? b
: b.operator === '<' && a.operator === '<=' ? b
: a
}
module.exports = subset

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@@ -0,0 +1,10 @@
'use strict'
const Range = require('../classes/range')
// Mostly just for testing and legacy API reasons
const toComparators = (range, options) =>
new Range(range, options).set
.map(comp => comp.map(c => c.value).join(' ').trim().split(' '))
module.exports = toComparators

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@@ -0,0 +1,13 @@
'use strict'
const Range = require('../classes/range')
const validRange = (range, options) => {
try {
// Return '*' instead of '' so that truthiness works.
// This will throw if it's invalid anyway
return new Range(range, options).range || '*'
} catch (er) {
return null
}
}
module.exports = validRange

71
qwen/nodejs/node_modules/jsonwebtoken/package.json generated vendored Normal file
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{
"name": "jsonwebtoken",
"version": "9.0.2",
"description": "JSON Web Token implementation (symmetric and asymmetric)",
"main": "index.js",
"nyc": {
"check-coverage": true,
"lines": 95,
"statements": 95,
"functions": 100,
"branches": 95,
"exclude": [
"./test/**"
],
"reporter": [
"json",
"lcov",
"text-summary"
]
},
"scripts": {
"lint": "eslint .",
"coverage": "nyc mocha --use_strict",
"test": "npm run lint && npm run coverage && cost-of-modules"
},
"repository": {
"type": "git",
"url": "https://github.com/auth0/node-jsonwebtoken"
},
"keywords": [
"jwt"
],
"author": "auth0",
"license": "MIT",
"bugs": {
"url": "https://github.com/auth0/node-jsonwebtoken/issues"
},
"dependencies": {
"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": "^7.5.4"
},
"devDependencies": {
"atob": "^2.1.2",
"chai": "^4.1.2",
"conventional-changelog": "~1.1.0",
"cost-of-modules": "^1.0.1",
"eslint": "^4.19.1",
"mocha": "^5.2.0",
"nsp": "^2.6.2",
"nyc": "^11.9.0",
"sinon": "^6.0.0"
},
"engines": {
"npm": ">=6",
"node": ">=12"
},
"files": [
"lib",
"decode.js",
"sign.js",
"verify.js"
]
}

253
qwen/nodejs/node_modules/jsonwebtoken/sign.js generated vendored Normal file
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const timespan = require('./lib/timespan');
const PS_SUPPORTED = require('./lib/psSupported');
const validateAsymmetricKey = require('./lib/validateAsymmetricKey');
const jws = require('jws');
const includes = require('lodash.includes');
const isBoolean = require('lodash.isboolean');
const isInteger = require('lodash.isinteger');
const isNumber = require('lodash.isnumber');
const isPlainObject = require('lodash.isplainobject');
const isString = require('lodash.isstring');
const once = require('lodash.once');
const { KeyObject, createSecretKey, createPrivateKey } = require('crypto')
const SUPPORTED_ALGS = ['RS256', 'RS384', 'RS512', 'ES256', 'ES384', 'ES512', 'HS256', 'HS384', 'HS512', 'none'];
if (PS_SUPPORTED) {
SUPPORTED_ALGS.splice(3, 0, 'PS256', 'PS384', 'PS512');
}
const 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: includes.bind(null, SUPPORTED_ALGS), 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: isBoolean, message: '"noTimestamp" must be a boolean' },
keyid: { isValid: isString, message: '"keyid" must be a string' },
mutatePayload: { isValid: isBoolean, message: '"mutatePayload" must be a boolean' },
allowInsecureKeySizes: { isValid: isBoolean, message: '"allowInsecureKeySizes" must be a boolean'},
allowInvalidAsymmetricKeyTypes: { isValid: isBoolean, message: '"allowInvalidAsymmetricKeyTypes" must be a boolean'}
};
const 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) {
const 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');
}
const options_to_payload = {
'audience': 'aud',
'issuer': 'iss',
'subject': 'sub',
'jwtid': 'jti'
};
const 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 || {};
}
const isObjectPayload = typeof payload === 'object' &&
!Buffer.isBuffer(payload);
const 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 (secretOrPrivateKey != null && !(secretOrPrivateKey instanceof KeyObject)) {
try {
secretOrPrivateKey = createPrivateKey(secretOrPrivateKey)
} catch (_) {
try {
secretOrPrivateKey = createSecretKey(typeof secretOrPrivateKey === 'string' ? Buffer.from(secretOrPrivateKey) : secretOrPrivateKey)
} catch (_) {
return failure(new Error('secretOrPrivateKey is not valid key material'));
}
}
}
if (header.alg.startsWith('HS') && secretOrPrivateKey.type !== 'secret') {
return failure(new Error((`secretOrPrivateKey must be a symmetric key when using ${header.alg}`)))
} else if (/^(?:RS|PS|ES)/.test(header.alg)) {
if (secretOrPrivateKey.type !== 'private') {
return failure(new Error((`secretOrPrivateKey must be an asymmetric key when using ${header.alg}`)))
}
if (!options.allowInsecureKeySizes &&
!header.alg.startsWith('ES') &&
secretOrPrivateKey.asymmetricKeyDetails !== undefined && //KeyObject.asymmetricKeyDetails is supported in Node 15+
secretOrPrivateKey.asymmetricKeyDetails.modulusLength < 2048) {
return failure(new Error(`secretOrPrivateKey has a minimum key size of 2048 bits for ${header.alg}`));
}
}
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 {
const 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);
}
if (!options.allowInvalidAsymmetricKeyTypes) {
try {
validateAsymmetricKey(header.alg, secretOrPrivateKey);
} catch (error) {
return failure(error);
}
}
const 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) {
const 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];
}
});
const 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) {
// TODO: Remove in favor of the modulus length check before signing once node 15+ is the minimum supported version
if(!options.allowInsecureKeySizes && /^(?:RS|PS)/.test(header.alg) && signature.length < 256) {
return callback(new Error(`secretOrPrivateKey has a minimum key size of 2048 bits for ${header.alg}`))
}
callback(null, signature);
});
} else {
let signature = jws.sign({header: header, payload: payload, secret: secretOrPrivateKey, encoding: encoding});
// TODO: Remove in favor of the modulus length check before signing once node 15+ is the minimum supported version
if(!options.allowInsecureKeySizes && /^(?:RS|PS)/.test(header.alg) && signature.length < 256) {
throw new Error(`secretOrPrivateKey has a minimum key size of 2048 bits for ${header.alg}`)
}
return signature
}
};

263
qwen/nodejs/node_modules/jsonwebtoken/verify.js generated vendored Normal file
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const JsonWebTokenError = require('./lib/JsonWebTokenError');
const NotBeforeError = require('./lib/NotBeforeError');
const TokenExpiredError = require('./lib/TokenExpiredError');
const decode = require('./decode');
const timespan = require('./lib/timespan');
const validateAsymmetricKey = require('./lib/validateAsymmetricKey');
const PS_SUPPORTED = require('./lib/psSupported');
const jws = require('jws');
const {KeyObject, createSecretKey, createPublicKey} = require("crypto");
const PUB_KEY_ALGS = ['RS256', 'RS384', 'RS512'];
const EC_KEY_ALGS = ['ES256', 'ES384', 'ES512'];
const RSA_KEY_ALGS = ['RS256', 'RS384', 'RS512'];
const HS_ALGS = ['HS256', 'HS384', 'HS512'];
if (PS_SUPPORTED) {
PUB_KEY_ALGS.splice(PUB_KEY_ALGS.length, 0, 'PS256', 'PS384', 'PS512');
RSA_KEY_ALGS.splice(RSA_KEY_ALGS.length, 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);
let 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'));
}
if (options.allowInvalidAsymmetricKeyTypes !== undefined && typeof options.allowInvalidAsymmetricKeyTypes !== 'boolean') {
return done(new JsonWebTokenError('allowInvalidAsymmetricKeyTypes must be a boolean'));
}
const 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'));
}
const parts = jwtString.split('.');
if (parts.length !== 3){
return done(new JsonWebTokenError('jwt malformed'));
}
let decodedToken;
try {
decodedToken = decode(jwtString, { complete: true });
} catch(err) {
return done(err);
}
if (!decodedToken) {
return done(new JsonWebTokenError('invalid token'));
}
const header = decodedToken.header;
let 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));
}
const 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) {
return done(new JsonWebTokenError('please specify "none" in "algorithms" to verify unsigned tokens'));
}
if (secretOrPublicKey != null && !(secretOrPublicKey instanceof KeyObject)) {
try {
secretOrPublicKey = createPublicKey(secretOrPublicKey);
} catch (_) {
try {
secretOrPublicKey = createSecretKey(typeof secretOrPublicKey === 'string' ? Buffer.from(secretOrPublicKey) : secretOrPublicKey);
} catch (_) {
return done(new JsonWebTokenError('secretOrPublicKey is not valid key material'))
}
}
}
if (!options.algorithms) {
if (secretOrPublicKey.type === 'secret') {
options.algorithms = HS_ALGS;
} else if (['rsa', 'rsa-pss'].includes(secretOrPublicKey.asymmetricKeyType)) {
options.algorithms = RSA_KEY_ALGS
} else if (secretOrPublicKey.asymmetricKeyType === 'ec') {
options.algorithms = EC_KEY_ALGS
} else {
options.algorithms = PUB_KEY_ALGS
}
}
if (options.algorithms.indexOf(decodedToken.header.alg) === -1) {
return done(new JsonWebTokenError('invalid algorithm'));
}
if (header.alg.startsWith('HS') && secretOrPublicKey.type !== 'secret') {
return done(new JsonWebTokenError((`secretOrPublicKey must be a symmetric key when using ${header.alg}`)))
} else if (/^(?:RS|PS|ES)/.test(header.alg) && secretOrPublicKey.type !== 'public') {
return done(new JsonWebTokenError((`secretOrPublicKey must be an asymmetric key when using ${header.alg}`)))
}
if (!options.allowInvalidAsymmetricKeyTypes) {
try {
validateAsymmetricKey(header.alg, secretOrPublicKey);
} catch (e) {
return done(e);
}
}
let valid;
try {
valid = jws.verify(jwtString, decodedToken.header.alg, secretOrPublicKey);
} catch (e) {
return done(e);
}
if (!valid) {
return done(new JsonWebTokenError('invalid signature'));
}
const 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) {
const audiences = Array.isArray(options.audience) ? options.audience : [options.audience];
const target = Array.isArray(payload.aud) ? payload.aud : [payload.aud];
const 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) {
const 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'));
}
const 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) {
const signature = decodedToken.signature;
return done(null, {
header: header,
payload: payload,
signature: signature
});
}
return done(null, payload);
});
};