X-Git-Url: https://git.josue.xyz/?a=blobdiff_plain;ds=sidebyside;f=node_modules%2Fcookie-signature%2Findex.js;fp=node_modules%2Fcookie-signature%2Findex.js;h=b8c9463a238b7ec090ff9090234e3f34322a36df;hb=abfec190c00a892ef2282464bda5332ce7c8e749;hp=0000000000000000000000000000000000000000;hpb=688727dfe4e79025f91612d1d886bcd328044c12;p=josuexyz%2F.git

diff --git a/node_modules/cookie-signature/index.js b/node_modules/cookie-signature/index.js
new file mode 100644
index 0000000..b8c9463
--- /dev/null
+++ b/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');
+}