e5d578a849
Disable the confirmation dialog when deleting files in the VS Code explorer to streamline the development workflow and reduce friction during file management operations.
52 lines
1.3 KiB
JavaScript
52 lines
1.3 KiB
JavaScript
/**
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* Module dependencies.
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*/
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var crypto = require('crypto');
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/**
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* Sign the given `val` with `secret`.
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*
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* @param {String} val
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* @param {String|NodeJS.ArrayBufferView|crypto.KeyObject} secret
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* @return {String}
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* @api private
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*/
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exports.sign = function(val, secret){
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if ('string' !== typeof val) throw new TypeError("Cookie value must be provided as a string.");
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if (null == secret) throw new TypeError("Secret key must be provided.");
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return val + '.' + crypto
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.createHmac('sha256', secret)
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.update(val)
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.digest('base64')
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.replace(/\=+$/, '');
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};
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/**
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* Unsign and decode the given `val` with `secret`,
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* returning `false` if the signature is invalid.
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*
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* @param {String} val
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* @param {String|NodeJS.ArrayBufferView|crypto.KeyObject} secret
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* @return {String|Boolean}
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* @api private
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*/
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exports.unsign = function(val, secret){
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if ('string' !== typeof val) throw new TypeError("Signed cookie string must be provided.");
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if (null == secret) throw new TypeError("Secret key must be provided.");
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var str = val.slice(0, val.lastIndexOf('.'))
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, mac = exports.sign(str, secret);
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return sha1(mac) == sha1(val) ? str : false;
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};
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/**
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* Private
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*/
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function sha1(str){
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return crypto.createHash('sha1').update(str).digest('hex');
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}
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