61 lines
1.7 KiB
JavaScript
61 lines
1.7 KiB
JavaScript
var forge = require('node-forge');
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var fs = require('fs');
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/**
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* Convert a .p12 file to .pem string.
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* This is the constructor so it can also be used to
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* create an object that can be reused to get different keys.
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*
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* @param {string} filename The .p12 key filename.
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* @param {Function=} callback The callback function.
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*/
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function GoogleP12toPem(filename, callback) {
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if (!(this instanceof GoogleP12toPem)) {
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var gp12 = new GoogleP12toPem();
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return gp12.getPem(filename, callback);
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}
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this.pem = null;
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}
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/**
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* Convert a .p12 file to .pem string
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* @param {string} filename The .p12 key filename.
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* @param {Function=} callback The callback function.
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* @return {string=} The .pem private key if no callback provided.
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*/
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GoogleP12toPem.prototype.getPem = function(filename, callback) {
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var self = this;
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if (typeof callback === 'function') {
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fs.readFile(filename, { encoding: 'base64' }, function(err, keyp12) {
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if (err) {
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callback(err, null);
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return;
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}
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try {
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this.pem = _convertToPem(keyp12);
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} catch (e) {
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callback(e, null);
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return;
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}
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callback(null, this.pem);
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});
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} else {
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var keyp12 = fs.readFileSync(filename, { encoding: 'base64' });
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this.pem = _convertToPem(keyp12);
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return this.pem;
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}
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function _convertToPem(p12base64) {
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var p12Der = forge.util.decode64(p12base64);
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var p12Asn1 = forge.asn1.fromDer(p12Der);
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var p12 = forge.pkcs12.pkcs12FromAsn1(p12Asn1, 'notasecret');
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var privateKey = p12.getBagsByFriendlyName('privatekey')[0].key;
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var pem = forge.pki.privateKeyToPem(privateKey);
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return pem.replace(/\r\n/g, '\n');
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}
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};
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module.exports = GoogleP12toPem;
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