Bump knex from 0.20.15 to 2.4.0 in /backend

Bumps [knex](https://github.com/knex/knex) from 0.20.15 to 2.4.0.
- [Release notes](https://github.com/knex/knex/releases)
- [Changelog](https://github.com/knex/knex/blob/master/CHANGELOG.md)
- [Commits](https://github.com/knex/knex/compare/0.20.15...2.4.0)

---
updated-dependencies:
- dependency-name: knex
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

backend/internal/certificate.js

@@ -874,7 +874,12 @@ const internalCertificate = {
 		// Escape single quotes and backslashes
 		const escapedCredentials = certificate.meta.dns_provider_credentials.replaceAll('\'', '\\\'').replaceAll('\\', '\\\\');
 		const credentialsCmd     = 'mkdir -p /etc/letsencrypt/credentials 2> /dev/null; echo \'' + escapedCredentials + '\' > \'' + credentialsLocation + '\' && chmod 600 \'' + credentialsLocation + '\'';
-		const prepareCmd         = 'pip install ' + dns_plugin.package_name + (dns_plugin.version_requirement || '') + ' ' + dns_plugin.dependencies;
+		let prepareCmd           = 'pip install ' + dns_plugin.package_name + (dns_plugin.version_requirement || '') + ' ' + dns_plugin.dependencies;
+
+		// Special case for cloudflare
+		if (dns_plugin.package_name === 'certbot-dns-cloudflare') {
+			prepareCmd = 'pip install certbot-dns-cloudflare --index-url https://www.piwheels.org/simple --prefer-binary';
+		}
 
 		// Whether the plugin has a --<name>-credentials argument
 		const hasConfigArg = certificate.meta.dns_provider !== 'route53';

backend/package.json

@@ -16,7 +16,7 @@
 		"gravatar": "^1.8.0",
 		"json-schema-ref-parser": "^8.0.0",
 		"jsonwebtoken": "^8.5.1",
-		"knex": "^0.20.13",
+		"knex": "^2.4.0",
 		"liquidjs": "^9.11.10",
 		"lodash": "^4.17.21",
 		"moment": "^2.29.4",

backend/setup.js

@@ -169,18 +169,23 @@ const setupCertbotPlugins = () => {
 		.andWhere('provider', 'letsencrypt')
 		.then((certificates) => {
 			if (certificates && certificates.length) {
-				let plugins  = [];
-				let promises = [];
+				let plugins                   = [];
+				let promises                  = [];
+				let install_cloudflare_plugin = false;
 
 				certificates.map(function (certificate) {
 					if (certificate.meta && certificate.meta.dns_challenge === true) {
-						const dns_plugin          = dns_plugins[certificate.meta.dns_provider];
-						const packages_to_install = `${dns_plugin.package_name}${dns_plugin.version_requirement || ''} ${dns_plugin.dependencies}`;
+						const dns_plugin = dns_plugins[certificate.meta.dns_provider];
 
-						if (plugins.indexOf(packages_to_install) === -1) plugins.push(packages_to_install);
+						if (dns_plugin.package_name === 'certbot-dns-cloudflare') {
+							install_cloudflare_plugin = true;
+						} else {
+							const packages_to_install = `${dns_plugin.package_name}${dns_plugin.version_requirement || ''} ${dns_plugin.dependencies}`;
+							if (plugins.indexOf(packages_to_install) === -1) plugins.push(packages_to_install);
+						}
 
 						// Make sure credentials file exists
-						const credentials_loc = '/etc/letsencrypt/credentials/credentials-' + certificate.id; 
+						const credentials_loc = '/etc/letsencrypt/credentials/credentials-' + certificate.id;
 						// Escape single quotes and backslashes
 						const escapedCredentials = certificate.meta.dns_provider_credentials.replaceAll('\'', '\\\'').replaceAll('\\', '\\\\');
 						const credentials_cmd    = '[ -f \'' + credentials_loc + '\' ] || { mkdir -p /etc/letsencrypt/credentials 2> /dev/null; echo \'' + escapedCredentials + '\' > \'' + credentials_loc + '\' && chmod 600 \'' + credentials_loc + '\'; }';
@@ -193,10 +198,14 @@ const setupCertbotPlugins = () => {
 					promises.push(utils.exec(install_cmd));
 				}
 
+				if (install_cloudflare_plugin) {
+					promises.push(utils.exec('pip install certbot-dns-cloudflare --index-url https://www.piwheels.org/simple --prefer-binary'));
+				}
+
 				if (promises.length) {
 					return Promise.all(promises)
-						.then(() => { 
-							logger.info('Added Certbot plugins ' + plugins.join(', ')); 
+						.then(() => {
+							logger.info('Added Certbot plugins ' + plugins.join(', '));
 						});
 				}
 			}