From 4f27eefd6ec24a2644e674850f5a2b5d4928b168 Mon Sep 17 00:00:00 2001
From: Biswakalyan Bhuyan <biswa@surgot.in>
Date: Thu, 25 Jul 2024 12:10:39 +0530
Subject: added .gitignore

---
 backend/node_modules/jws/lib/verify-stream.js | 120 --------------------------
 1 file changed, 120 deletions(-)
 delete mode 100644 backend/node_modules/jws/lib/verify-stream.js

(limited to 'backend/node_modules/jws/lib/verify-stream.js')

diff --git a/backend/node_modules/jws/lib/verify-stream.js b/backend/node_modules/jws/lib/verify-stream.js
deleted file mode 100644
index 39f7c73..0000000
--- a/backend/node_modules/jws/lib/verify-stream.js
+++ /dev/null
@@ -1,120 +0,0 @@
-/*global module*/
-var Buffer = require('safe-buffer').Buffer;
-var DataStream = require('./data-stream');
-var jwa = require('jwa');
-var Stream = require('stream');
-var toString = require('./tostring');
-var util = require('util');
-var JWS_REGEX = /^[a-zA-Z0-9\-_]+?\.[a-zA-Z0-9\-_]+?\.([a-zA-Z0-9\-_]+)?$/;
-
-function isObject(thing) {
-  return Object.prototype.toString.call(thing) === '[object Object]';
-}
-
-function safeJsonParse(thing) {
-  if (isObject(thing))
-    return thing;
-  try { return JSON.parse(thing); }
-  catch (e) { return undefined; }
-}
-
-function headerFromJWS(jwsSig) {
-  var encodedHeader = jwsSig.split('.', 1)[0];
-  return safeJsonParse(Buffer.from(encodedHeader, 'base64').toString('binary'));
-}
-
-function securedInputFromJWS(jwsSig) {
-  return jwsSig.split('.', 2).join('.');
-}
-
-function signatureFromJWS(jwsSig) {
-  return jwsSig.split('.')[2];
-}
-
-function payloadFromJWS(jwsSig, encoding) {
-  encoding = encoding || 'utf8';
-  var payload = jwsSig.split('.')[1];
-  return Buffer.from(payload, 'base64').toString(encoding);
-}
-
-function isValidJws(string) {
-  return JWS_REGEX.test(string) && !!headerFromJWS(string);
-}
-
-function jwsVerify(jwsSig, algorithm, secretOrKey) {
-  if (!algorithm) {
-    var err = new Error("Missing algorithm parameter for jws.verify");
-    err.code = "MISSING_ALGORITHM";
-    throw err;
-  }
-  jwsSig = toString(jwsSig);
-  var signature = signatureFromJWS(jwsSig);
-  var securedInput = securedInputFromJWS(jwsSig);
-  var algo = jwa(algorithm);
-  return algo.verify(securedInput, signature, secretOrKey);
-}
-
-function jwsDecode(jwsSig, opts) {
-  opts = opts || {};
-  jwsSig = toString(jwsSig);
-
-  if (!isValidJws(jwsSig))
-    return null;
-
-  var header = headerFromJWS(jwsSig);
-
-  if (!header)
-    return null;
-
-  var payload = payloadFromJWS(jwsSig);
-  if (header.typ === 'JWT' || opts.json)
-    payload = JSON.parse(payload, opts.encoding);
-
-  return {
-    header: header,
-    payload: payload,
-    signature: signatureFromJWS(jwsSig)
-  };
-}
-
-function VerifyStream(opts) {
-  opts = opts || {};
-  var secretOrKey = opts.secret||opts.publicKey||opts.key;
-  var secretStream = new DataStream(secretOrKey);
-  this.readable = true;
-  this.algorithm = opts.algorithm;
-  this.encoding = opts.encoding;
-  this.secret = this.publicKey = this.key = secretStream;
-  this.signature = new DataStream(opts.signature);
-  this.secret.once('close', function () {
-    if (!this.signature.writable && this.readable)
-      this.verify();
-  }.bind(this));
-
-  this.signature.once('close', function () {
-    if (!this.secret.writable && this.readable)
-      this.verify();
-  }.bind(this));
-}
-util.inherits(VerifyStream, Stream);
-VerifyStream.prototype.verify = function verify() {
-  try {
-    var valid = jwsVerify(this.signature.buffer, this.algorithm, this.key.buffer);
-    var obj = jwsDecode(this.signature.buffer, this.encoding);
-    this.emit('done', valid, obj);
-    this.emit('data', valid);
-    this.emit('end');
-    this.readable = false;
-    return valid;
-  } catch (e) {
-    this.readable = false;
-    this.emit('error', e);
-    this.emit('close');
-  }
-};
-
-VerifyStream.decode = jwsDecode;
-VerifyStream.isValid = isValidJws;
-VerifyStream.verify = jwsVerify;
-
-module.exports = VerifyStream;
-- 
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