Add command to list providers with settings

appinfo/info.xml

@@ -36,5 +36,6 @@
 	<commands>
 		<command>OCA\UserOIDC\Command\UpsertProvider</command>
 		<command>OCA\UserOIDC\Command\DeleteProvider</command>
+		<command>OCA\UserOIDC\Command\ListProviders</command>
 	</commands>
 </info>

lib/Command/ListProviders.php

@@ -0,0 +1,85 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\UserOIDC\Command;
+
+use OC\Core\Command\Base;
+use OCA\UserOIDC\Db\ProviderMapper;
+use OCA\UserOIDC\Service\ProviderService;
+use OCP\Security\ICrypto;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class ListProviders extends Base {
+
+	public function __construct(
+		private ProviderMapper $providerMapper,
+		private ProviderService $providerService,
+		private ICrypto $crypto,
+	) {
+		parent::__construct();
+	}
+
+	protected function configure() {
+		$this
+			->setName('user_oidc:providers')
+			->setDescription('List all providers and print their configuration')
+			->addOption('sensitive', 's', InputOption::VALUE_NONE, 'Obfuscate sensitive values like the client ID and the discovery endpoint domain name');
+		$this->defaultOutputFormat = self::OUTPUT_FORMAT_JSON_PRETTY;
+		parent::configure();
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output) {
+		$outputFormat = $input->getOption('output') ?? 'json_pretty';
+		$sensitive = $input->getOption('sensitive');
+
+		$providers = $this->providerMapper->getProviders();
+
+		$providersWithSettings = array_map(function ($provider) use ($sensitive) {
+			$providerSettings = $this->providerService->getSettings($provider->getId());
+			$serializedProvider = $provider->jsonSerialize();
+			if ($sensitive) {
+				$serializedProvider['clientId'] = '********';
+				$serializedProvider['clientSecret'] = '********';
+				try {
+					$discoveryDomainName = parse_url($serializedProvider['discoveryEndpoint'], PHP_URL_HOST);
+					$serializedProvider['discoveryEndpoint'] = str_replace($discoveryDomainName, '********', $serializedProvider['discoveryEndpoint']);
+				} catch (\Exception|\Throwable) {
+				}
+			} else {
+				$serializedProvider['clientSecret'] = $this->crypto->decrypt($provider->getClientSecret());
+			}
+			return array_merge($serializedProvider, ['settings' => $providerSettings]);
+		}, $providers);
+
+		if ($outputFormat === 'json') {
+			foreach ($providersWithSettings as $provider) {
+				$output->writeln(json_encode($provider, JSON_THROW_ON_ERROR));
+			}
+			return 0;
+		}
+
+		if ($outputFormat === 'json_pretty') {
+			foreach ($providersWithSettings as $provider) {
+				$output->writeln(json_encode($provider, JSON_THROW_ON_ERROR | JSON_PRETTY_PRINT));
+			}
+			return 0;
+		}
+
+		$output->writeln(
+			'<comment>Only "' . self::OUTPUT_FORMAT_JSON . '" and "' . self::OUTPUT_FORMAT_JSON_PRETTY . '" output formats are supported.</comment>',
+		);
+
+		$output->writeln(
+			'<comment>Use "--output=' . self::OUTPUT_FORMAT_JSON . '" or "--output=' . self::OUTPUT_FORMAT_JSON_PRETTY . '" '
+				. '(default format is "' . self::OUTPUT_FORMAT_JSON_PRETTY . '")</comment>',
+		);
+		return 0;
+	}
+}