node-x509-certificate
Retrieve the public TLS certificate in x509 format from a distant host
npm
npm install x509-certificate --saveusage
getCertificate(port, host, callback)
getCertificate(443, 'redsmin.com', (err, certificate) => {
if(err){
throw err;
}
console.log(certificate); // x509 certificate
});host: host the client should connect toport: port the client should connect tocallback(err: {Error,Null}, certificate: String)
getCertificate(port, host, options, callback)
getCertificate(443, 'my-very-own-sni-host.com', {
rejectUnauthorized: true,
servername: 'my-very-own-sni-host.com'
}, (err, certificate) => {
if(err){
throw err;
}
console.log(certificate); // x509 certificate
});optionobject is the same astls.connectoption object
cli
> npm i x509-certificate -g
> x509-certificate redsmin.com:443
-----BEGIN CERTIFICATE-----
MIIGTzCCBTegAwIBAgIRAKxlFKZ9eTAZfc5c8P1qvq4wDQYJKoZIhvcNAQELBQAw
gZAxCzAJBgNVBAYTAkdCMRswGQYDVQQIExJHcmVhdGVyIE1hbmNoZXN0ZXIxEDAO
BgNVBAcTB1NhbGZvcmQxGjAYBgNVBAoTEUNPTU9ETyBDQSBMaW1pdGVkMTYwNAYD
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-----END CERTIFICATE-----
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