80 lines
1.6 KiB
Markdown
80 lines
1.6 KiB
Markdown
# [cert-info.js](https://git.coolaj86.com/coolaj86/cert-info.js)
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Read basic info from a cert.pem / x509 certificate.
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Used for [Greenlock.js](https://git.coolaj86.com/coolaj86/greenlock-express.js)
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# Features
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| <175 lines of code | 1.7k gzipped | 4.4k minified | 8.8k with comments |
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* [x] Parses x.509 certificate schemas
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* [x] DER/ASN.1
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* [x] PEM (base64-encoded DER)
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* [x] Subject
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* [x] SAN extension (altNames)
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* [x] Issuance Date (notBefore)
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* [x] Expiry Date (notAfter)
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* [x] VanillaJS, **Zero Dependencies**
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* [x] Node.js
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* [ ] Browsers (built, publishing soon)
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# Install
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```bash
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# bin
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npm install --global cert-info
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# node.js library
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npm install --save cert-info
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```
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# Usage
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## CLI
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For basic info (subject, altnames, issuedAt, expiresAt):
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```bash
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cert-info /path/to/cert.pem
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```
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## node.js
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```javascript
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'use strict';
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var certinfo = require('cert-info');
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var cert = fs.readFile('cert.pem', 'ascii', function (err, certstr) {
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// basic info
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console.info(certinfo.info(certstr));
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// if you need to submit a bug report
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console.info(certinfo.debug(certstr));
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});
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```
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Example output:
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```javascript
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{
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"subject": "localhost.example.com",
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"altnames": [
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"localhost.example.com"
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],
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"issuedAt": 1465516800000,
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"expiresAt": 1499731199000
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}
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```
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With a few small changes this could also work in the browser
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(it has no dependencies and all of the non-browser things are on the Enc object).
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# Legal
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[cert-info.js](https://git.coolaj86.com/coolaj86/cert-info.js) |
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MPL-2.0 |
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[Terms of Use](https://therootcompany.com/legal/#terms) |
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[Privacy Policy](https://therootcompany.com/legal/#privacy)
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