From c00ac1ff51c795d4d93c32e0a913e2cebf917d0c Mon Sep 17 00:00:00 2001
From: Biswakalyan Bhuyan <biswa@surgot.in>
Date: Thu, 25 Jul 2024 12:09:28 +0530
Subject: added backend and login portal
---
backend/node_modules/cookie-signature/.npmignore | 4 ++
backend/node_modules/cookie-signature/History.md | 38 ++++++++++++++++
backend/node_modules/cookie-signature/Readme.md | 42 ++++++++++++++++++
backend/node_modules/cookie-signature/index.js | 51 ++++++++++++++++++++++
backend/node_modules/cookie-signature/package.json | 18 ++++++++
5 files changed, 153 insertions(+)
create mode 100644 backend/node_modules/cookie-signature/.npmignore
create mode 100644 backend/node_modules/cookie-signature/History.md
create mode 100644 backend/node_modules/cookie-signature/Readme.md
create mode 100644 backend/node_modules/cookie-signature/index.js
create mode 100644 backend/node_modules/cookie-signature/package.json
(limited to 'backend/node_modules/cookie-signature')
diff --git a/backend/node_modules/cookie-signature/.npmignore b/backend/node_modules/cookie-signature/.npmignore
new file mode 100644
index 0000000..f1250e5
--- /dev/null
+++ b/backend/node_modules/cookie-signature/.npmignore
@@ -0,0 +1,4 @@
+support
+test
+examples
+*.sock
diff --git a/backend/node_modules/cookie-signature/History.md b/backend/node_modules/cookie-signature/History.md
new file mode 100644
index 0000000..78513cc
--- /dev/null
+++ b/backend/node_modules/cookie-signature/History.md
@@ -0,0 +1,38 @@
+1.0.6 / 2015-02-03
+==================
+
+* use `npm test` instead of `make test` to run tests
+* clearer assertion messages when checking input
+
+
+1.0.5 / 2014-09-05
+==================
+
+* add license to package.json
+
+1.0.4 / 2014-06-25
+==================
+
+ * corrected avoidance of timing attacks (thanks @tenbits!)
+
+1.0.3 / 2014-01-28
+==================
+
+ * [incorrect] fix for timing attacks
+
+1.0.2 / 2014-01-28
+==================
+
+ * fix missing repository warning
+ * fix typo in test
+
+1.0.1 / 2013-04-15
+==================
+
+ * Revert "Changed underlying HMAC algo. to sha512."
+ * Revert "Fix for timing attacks on MAC verification."
+
+0.0.1 / 2010-01-03
+==================
+
+ * Initial release
diff --git a/backend/node_modules/cookie-signature/Readme.md b/backend/node_modules/cookie-signature/Readme.md
new file mode 100644
index 0000000..2559e84
--- /dev/null
+++ b/backend/node_modules/cookie-signature/Readme.md
@@ -0,0 +1,42 @@
+
+# cookie-signature
+
+ Sign and unsign cookies.
+
+## Example
+
+```js
+var cookie = require('cookie-signature');
+
+var val = cookie.sign('hello', 'tobiiscool');
+val.should.equal('hello.DGDUkGlIkCzPz+C0B064FNgHdEjox7ch8tOBGslZ5QI');
+
+var val = cookie.sign('hello', 'tobiiscool');
+cookie.unsign(val, 'tobiiscool').should.equal('hello');
+cookie.unsign(val, 'luna').should.be.false;
+```
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2012 LearnBoost <tj@learnboost.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.
\ No newline at end of file
diff --git a/backend/node_modules/cookie-signature/index.js b/backend/node_modules/cookie-signature/index.js
new file mode 100644
index 0000000..b8c9463
--- /dev/null
+++ b/backend/node_modules/cookie-signature/index.js
@@ -0,0 +1,51 @@
+/**
+ * Module dependencies.
+ */
+
+var crypto = require('crypto');
+
+/**
+ * Sign the given `val` with `secret`.
+ *
+ * @param {String} val
+ * @param {String} secret
+ * @return {String}
+ * @api private
+ */
+
+exports.sign = function(val, secret){
+ if ('string' != typeof val) throw new TypeError("Cookie value must be provided as a string.");
+ if ('string' != typeof secret) throw new TypeError("Secret string must be provided.");
+ return val + '.' + crypto
+ .createHmac('sha256', secret)
+ .update(val)
+ .digest('base64')
+ .replace(/\=+$/, '');
+};
+
+/**
+ * Unsign and decode the given `val` with `secret`,
+ * returning `false` if the signature is invalid.
+ *
+ * @param {String} val
+ * @param {String} secret
+ * @return {String|Boolean}
+ * @api private
+ */
+
+exports.unsign = function(val, secret){
+ if ('string' != typeof val) throw new TypeError("Signed cookie string must be provided.");
+ if ('string' != typeof secret) throw new TypeError("Secret string must be provided.");
+ var str = val.slice(0, val.lastIndexOf('.'))
+ , mac = exports.sign(str, secret);
+
+ return sha1(mac) == sha1(val) ? str : false;
+};
+
+/**
+ * Private
+ */
+
+function sha1(str){
+ return crypto.createHash('sha1').update(str).digest('hex');
+}
diff --git a/backend/node_modules/cookie-signature/package.json b/backend/node_modules/cookie-signature/package.json
new file mode 100644
index 0000000..29c4498
--- /dev/null
+++ b/backend/node_modules/cookie-signature/package.json
@@ -0,0 +1,18 @@
+{
+ "name": "cookie-signature",
+ "version": "1.0.6",
+ "description": "Sign and unsign cookies",
+ "keywords": ["cookie", "sign", "unsign"],
+ "author": "TJ Holowaychuk <tj@learnboost.com>",
+ "license": "MIT",
+ "repository": { "type": "git", "url": "https://github.com/visionmedia/node-cookie-signature.git"},
+ "dependencies": {},
+ "devDependencies": {
+ "mocha": "*",
+ "should": "*"
+ },
+ "scripts": {
+ "test": "mocha --require should --reporter spec"
+ },
+ "main": "index"
+}
--
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