greenlock.js/lib/utils.js

152 lines
3.7 KiB
JavaScript

'use strict';
require('./compat.js');
var path = require('path');
var homeRe = new RegExp("^~(\\/|\\\\|\\" + path.sep + ")");
// very basic check. Allows *.example.com.
var re = /^(\*\.)?[a-zA-Z0-9\.\-]+$/;
var punycode = require('punycode');
var dnsResolveMxAsync = require('util').promisify(require('dns').resolveMx);
module.exports.attachCertInfo = function (results) {
var certInfo = require('cert-info').info(results.cert);
// subject, altnames, issuedAt, expiresAt
Object.keys(certInfo).forEach(function (key) {
results[key] = certInfo[key];
});
return results;
};
module.exports.certHasDomain = function (certInfo, _domain) {
var names = (certInfo.altnames || []).slice(0);
names.push(certInfo.subject);
return names.some(function (name) {
var domain = _domain.toLowerCase();
name = name.toLowerCase();
if ('*.' === name.substr(0, 2)) {
name = name.substr(2);
domain = domain.split('.').slice(1).join('.');
}
return name === domain;
});
};
module.exports.isValidDomain = function (domain) {
if (re.test(domain)) {
return domain;
}
domain = punycode.toASCII(domain);
if (re.test(domain)) {
return domain;
}
return '';
};
module.exports.merge = function (/*defaults, args*/) {
var allDefaults = Array.prototype.slice.apply(arguments);
var args = allDefaults.shift();
var copy = {};
allDefaults.forEach(function (defaults) {
Object.keys(defaults).forEach(function (key) {
if ('challenges' === key && copy[key] && defaults[key]) {
Object.keys(defaults[key]).forEach(function (k) {
copy[key][k] = defaults[key][k];
});
} else {
copy[key] = defaults[key];
}
});
});
Object.keys(args).forEach(function (key) {
if ('challenges' === key && copy[key] && args[key]) {
Object.keys(args[key]).forEach(function (k) {
copy[key][k] = args[key][k];
});
} else {
copy[key] = args[key];
}
});
return copy;
};
module.exports.tplCopy = function (copy) {
var homedir = require('os').homedir();
var tplKeys;
copy.hostnameGet = function (copy) {
return copy.subject || (copy.domains || [])[0] || copy.domain;
};
Object.keys(copy).forEach(function (key) {
var newName;
if (!/Get$/.test(key)) {
return;
}
newName = key.replace(/Get$/, '');
copy[newName] = copy[newName] || copy[key](copy);
});
tplKeys = Object.keys(copy);
tplKeys.sort(function (a, b) {
return b.length - a.length;
});
tplKeys.forEach(function (key) {
if ('string' !== typeof copy[key]) {
return;
}
copy[key] = copy[key].replace(homeRe, homedir + path.sep);
});
tplKeys.forEach(function (key) {
if ('string' !== typeof copy[key]) {
return;
}
tplKeys.forEach(function (tplname) {
if (!copy[tplname]) {
// what can't be templated now may be templatable later
return;
}
copy[key] = copy[key].replace(':' + tplname, copy[tplname]);
});
});
return copy;
};
module.exports.testEmail = function (email) {
var parts = (email||'').split('@');
var err;
if (2 !== parts.length || !parts[0] || !parts[1]) {
err = new Error("malformed email address '" + email + "'");
err.code = 'E_EMAIL';
return Promise.reject(err);
}
return dnsResolveMxAsync(parts[1]).then(function (records) {
// records only returns when there is data
if (!records.length) {
throw new Error("sanity check fail: success, but no MX records returned");
}
return email;
}, function (err) {
if ('ENODATA' === err.code) {
err = new Error("no MX records found for '" + parts[1] + "'");
err.code = 'E_EMAIL';
return Promise.reject(err);
}
});
};