feat(nginx): move letsencrypt to its own file, add ssl renew command

refs #190
- adds ssl-renew command

Author: acburdine

extensions/nginx/commands/ssl-renew.js

@@ -0,0 +1,22 @@
+'use strict';
+const cli = require('../../../lib');
+const letsencrypt = require('../letsencrypt');
+
+class SslRenewCommand extends cli.Command {
+    run() {
+        let instance = this.system.getInstance();
+
+        if (!instance.cliConfig.has('extension.sslemail')) {
+            return Promise.reject(new cli.errors.SystemError('No saved email found, skipping automatic letsencrypt renewal'));
+        }
+
+        let email = instance.cliConfig.get('extension.sslemail');
+        return this.ui.run(letsencrypt(instance, email, false), 'Renewing SSL certificate')
+            .catch((error) => Promise.reject(new cli.errors.ProcessError(error)));
+    }
+}
+
+SslRenewCommand.description = 'Renew an SSL certificate for a Ghost installation';
+
+module.exports = SslRenewCommand;
+

extensions/nginx/index.js

@@ -12,9 +12,6 @@ const NginxConfFile = require('nginx-conf').NginxConfFile;
 
 const cli = require('../../lib');
 
-const LIVE_URL = 'https://acme-v01.api.letsencrypt.org/directory';
-const STAGING_URL = 'https://acme-staging.api.letsencrypt.org/directory';
-
 class NginxExtension extends cli.Extension {
     setup(cmd, argv) {
         // ghost setup --local, skip
@@ -106,6 +103,7 @@ class NginxExtension extends cli.Extension {
         }
 
         let rootPath = path.resolve(ctx.instance.dir, 'system', 'nginx-root');
+        const letsencrypt = require('./letsencrypt');
 
         return this.ui.listr([{
             title: 'Checking DNS resolution',
@@ -155,15 +153,8 @@ class NginxExtension extends cli.Extension {
         }, {
             title: 'Getting SSL Certificate',
             task: () => {
-                let letsencryptFolder = path.join(ctx.instance.dir, 'system', 'letsencrypt');
-                let sslGenArgs = `certonly --agree-tos --email ${argv.sslemail} --webroot --webroot-path ${rootPath}` +
-                    ` --config-dir ${letsencryptFolder} --domains ${parsedUrl.hostname} --server ${argv.sslStaging ? STAGING_URL : LIVE_URL}`;
-
-                return execa('greenlock', sslGenArgs.split(' '), {
-                    stdio: 'ignore',
-                    preferLocal: true,
-                    localDir: __dirname
-                }).catch((error) => Promise.reject(new cli.errors.ProcessError(error)));
+                return letsencrypt(ctx.instance, argv.sslemail, argv.sslstaging)
+                    .catch((error) => Promise.reject(new cli.errors.ProcessError(error)));
             }
         }, {
             title: 'Generating Encryption Key (may take a few minutes)',

extensions/nginx/letsencrypt.js

@@ -0,0 +1,20 @@
+'use strict';
+const url = require('url');
+const path = require('path');
+const execa = require('execa');
+
+const LIVE_URL = 'https://acme-v01.api.letsencrypt.org/directory';
+const STAGING_URL = 'https://acme-staging.api.letsencrypt.org/directory';
+
+module.exports = function letsencrypt(instance, email, staging) {
+    let hostname = url.parse(instance.config.get('url')).hostname;
+    let rootPath = path.resolve(instance.dir, 'system', 'nginx-root');
+    let letsencryptFolder = path.join(instance.dir, 'system', 'letsencrypt');
+    let sslGenArgs = `certonly --agree-tos --email ${email} --webroot --webroot-path ${rootPath}` +
+                    ` --config-dir ${letsencryptFolder} --domains ${hostname} --server ${staging ? STAGING_URL : LIVE_URL}`;
+
+    return execa('greenlock', sslGenArgs.split(' '), {
+        preferLocal: true,
+        localDir: __dirname
+    });
+};