1 files changed, 0 insertions, 252 deletions
diff --git a/backend/node_modules/jwa/index.js b/backend/node_modules/jwa/index.js
deleted file mode 100644
index e71e6d1..0000000
--- a/backend/node_modules/jwa/index.js
+++ /dev/null
@@ -1,252 +0,0 @@
-var bufferEqual = require('buffer-equal-constant-time');
-var Buffer = require('safe-buffer').Buffer;
-var crypto = require('crypto');
-var formatEcdsa = require('ecdsa-sig-formatter');
-var util = require('util');
-
-var MSG_INVALID_ALGORITHM = '"%s" is not a valid algorithm.\n  Supported algorithms are:\n  "HS256", "HS384", "HS512", "RS256", "RS384", "RS512", "PS256", "PS384", "PS512", "ES256", "ES384", "ES512" and "none".'
-var MSG_INVALID_SECRET = 'secret must be a string or buffer';
-var MSG_INVALID_VERIFIER_KEY = 'key must be a string or a buffer';
-var MSG_INVALID_SIGNER_KEY = 'key must be a string, a buffer or an object';
-
-var supportsKeyObjects = typeof crypto.createPublicKey === 'function';
-if (supportsKeyObjects) {
-  MSG_INVALID_VERIFIER_KEY += ' or a KeyObject';
-  MSG_INVALID_SECRET += 'or a KeyObject';
-}
-
-function checkIsPublicKey(key) {
-  if (Buffer.isBuffer(key)) {
-    return;
-  }
-
-  if (typeof key === 'string') {
-    return;
-  }
-
-  if (!supportsKeyObjects) {
-    throw typeError(MSG_INVALID_VERIFIER_KEY);
-  }
-
-  if (typeof key !== 'object') {
-    throw typeError(MSG_INVALID_VERIFIER_KEY);
-  }
-
-  if (typeof key.type !== 'string') {
-    throw typeError(MSG_INVALID_VERIFIER_KEY);
-  }
-
-  if (typeof key.asymmetricKeyType !== 'string') {
-    throw typeError(MSG_INVALID_VERIFIER_KEY);
-  }
-
-  if (typeof key.export !== 'function') {
-    throw typeError(MSG_INVALID_VERIFIER_KEY);
-  }
-};
-
-function checkIsPrivateKey(key) {
-  if (Buffer.isBuffer(key)) {
-    return;
-  }
-
-  if (typeof key === 'string') {
-    return;
-  }
-
-  if (typeof key === 'object') {
-    return;
-  }
-
-  throw typeError(MSG_INVALID_SIGNER_KEY);
-};
-
-function checkIsSecretKey(key) {
-  if (Buffer.isBuffer(key)) {
-    return;
-  }
-
-  if (typeof key === 'string') {
-    return key;
-  }
-
-  if (!supportsKeyObjects) {
-    throw typeError(MSG_INVALID_SECRET);
-  }
-
-  if (typeof key !== 'object') {
-    throw typeError(MSG_INVALID_SECRET);
-  }
-
-  if (key.type !== 'secret') {
-    throw typeError(MSG_INVALID_SECRET);
-  }
-
-  if (typeof key.export !== 'function') {
-    throw typeError(MSG_INVALID_SECRET);
-  }
-}
-
-function fromBase64(base64) {
-  return base64
-    .replace(/=/g, '')
-    .replace(/\+/g, '-')
-    .replace(/\//g, '_');
-}
-
-function toBase64(base64url) {
-  base64url = base64url.toString();
-
-  var padding = 4 - base64url.length % 4;
-  if (padding !== 4) {
-    for (var i = 0; i < padding; ++i) {
-      base64url += '=';
-    }
-  }
-
-  return base64url
-    .replace(/\-/g, '+')
-    .replace(/_/g, '/');
-}
-
-function typeError(template) {
-  var args = [].slice.call(arguments, 1);
-  var errMsg = util.format.bind(util, template).apply(null, args);
-  return new TypeError(errMsg);
-}
-
-function bufferOrString(obj) {
-  return Buffer.isBuffer(obj) || typeof obj === 'string';
-}
-
-function normalizeInput(thing) {
-  if (!bufferOrString(thing))
-    thing = JSON.stringify(thing);
-  return thing;
-}
-
-function createHmacSigner(bits) {
-  return function sign(thing, secret) {
-    checkIsSecretKey(secret);
-    thing = normalizeInput(thing);
-    var hmac = crypto.createHmac('sha' + bits, secret);
-    var sig = (hmac.update(thing), hmac.digest('base64'))
-    return fromBase64(sig);
-  }
-}
-
-function createHmacVerifier(bits) {
-  return function verify(thing, signature, secret) {
-    var computedSig = createHmacSigner(bits)(thing, secret);
-    return bufferEqual(Buffer.from(signature), Buffer.from(computedSig));
-  }
-}
-
-function createKeySigner(bits) {
- return function sign(thing, privateKey) {
-    checkIsPrivateKey(privateKey);
-    thing = normalizeInput(thing);
-    // Even though we are specifying "RSA" here, this works with ECDSA
-    // keys as well.
-    var signer = crypto.createSign('RSA-SHA' + bits);
-    var sig = (signer.update(thing), signer.sign(privateKey, 'base64'));
-    return fromBase64(sig);
-  }
-}
-
-function createKeyVerifier(bits) {
-  return function verify(thing, signature, publicKey) {
-    checkIsPublicKey(publicKey);
-    thing = normalizeInput(thing);
-    signature = toBase64(signature);
-    var verifier = crypto.createVerify('RSA-SHA' + bits);
-    verifier.update(thing);
-    return verifier.verify(publicKey, signature, 'base64');
-  }
-}
-
-function createPSSKeySigner(bits) {
-  return function sign(thing, privateKey) {
-    checkIsPrivateKey(privateKey);
-    thing = normalizeInput(thing);
-    var signer = crypto.createSign('RSA-SHA' + bits);
-    var sig = (signer.update(thing), signer.sign({
-      key: privateKey,
-      padding: crypto.constants.RSA_PKCS1_PSS_PADDING,
-      saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST
-    }, 'base64'));
-    return fromBase64(sig);
-  }
-}
-
-function createPSSKeyVerifier(bits) {
-  return function verify(thing, signature, publicKey) {
-    checkIsPublicKey(publicKey);
-    thing = normalizeInput(thing);
-    signature = toBase64(signature);
-    var verifier = crypto.createVerify('RSA-SHA' + bits);
-    verifier.update(thing);
-    return verifier.verify({
-      key: publicKey,
-      padding: crypto.constants.RSA_PKCS1_PSS_PADDING,
-      saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST
-    }, signature, 'base64');
-  }
-}
-
-function createECDSASigner(bits) {
-  var inner = createKeySigner(bits);
-  return function sign() {
-    var signature = inner.apply(null, arguments);
-    signature = formatEcdsa.derToJose(signature, 'ES' + bits);
-    return signature;
-  };
-}
-
-function createECDSAVerifer(bits) {
-  var inner = createKeyVerifier(bits);
-  return function verify(thing, signature, publicKey) {
-    signature = formatEcdsa.joseToDer(signature, 'ES' + bits).toString('base64');
-    var result = inner(thing, signature, publicKey);
-    return result;
-  };
-}
-
-function createNoneSigner() {
-  return function sign() {
-    return '';
-  }
-}
-
-function createNoneVerifier() {
-  return function verify(thing, signature) {
-    return signature === '';
-  }
-}
-
-module.exports = function jwa(algorithm) {
-  var signerFactories = {
-    hs: createHmacSigner,
-    rs: createKeySigner,
-    ps: createPSSKeySigner,
-    es: createECDSASigner,
-    none: createNoneSigner,
-  }
-  var verifierFactories = {
-    hs: createHmacVerifier,
-    rs: createKeyVerifier,
-    ps: createPSSKeyVerifier,
-    es: createECDSAVerifer,
-    none: createNoneVerifier,
-  }
-  var match = algorithm.match(/^(RS|PS|ES|HS)(256|384|512)$|^(none)$/i);
-  if (!match)
-    throw typeError(MSG_INVALID_ALGORITHM, algorithm);
-  var algo = (match[1] || match[3]).toLowerCase();
-  var bits = match[2];
-
-  return {
-    sign: signerFactories[algo](bits),
-    verify: verifierFactories[algo](bits),
-  }
-};