From b99fe856e22cc417714c923935d2a8dc896c1ff9 Mon Sep 17 00:00:00 2001
From: Flavio Heleno <flaviohbatista@gmail.com>
Date: Sat, 23 Sep 2023 18:29:06 -0300
Subject: [PATCH] Add a new command "view:domain" for displaying formatted
 Domain Name information

---
 bin/console.php                               |   9 +-
 .../Commands/View/ViewDomainCommand.php       | 129 ++++++++++++++++++
 src/Console/DataObjects/Domain/DnsSec.php     |  13 +-
 src/Console/DataObjects/Domain/DomainInfo.php |  18 ++-
 4 files changed, 164 insertions(+), 5 deletions(-)
 create mode 100644 src/Console/Commands/View/ViewDomainCommand.php

diff --git a/bin/console.php b/bin/console.php
index 412b25a..5a79e01 100755
--- a/bin/console.php
+++ b/bin/console.php
@@ -13,13 +13,15 @@
 }
 
 require_once dirname(__DIR__) . '/vendor/autoload.php';
+
 use Composer\InstalledVersions;
 use DI\ContainerBuilder;
+use Symfony\Component\Console\Application;
+use Symfony\Component\Console\CommandLoader\ContainerCommandLoader;
 use Watchr\Console\Commands\Check\CheckAllCommand;
 use Watchr\Console\Commands\Check\CheckCertificateCommand;
 use Watchr\Console\Commands\Check\CheckDomainCommand;
-use Symfony\Component\Console\Application;
-use Symfony\Component\Console\CommandLoader\ContainerCommandLoader;
+use Watchr\Console\Commands\View\ViewDomainCommand;
 
 define(
   '__VERSION__',
@@ -52,7 +54,8 @@
     [
       CheckAllCommand::getDefaultName() => CheckAllCommand::class,
       CheckCertificateCommand::getDefaultName() => CheckCertificateCommand::class,
-      CheckDomainCommand::getDefaultName() => CheckDomainCommand::class
+      CheckDomainCommand::getDefaultName() => CheckDomainCommand::class,
+      ViewDomainCommand::getDefaultName() => ViewDomainCommand::class
     ]
   )
 );
diff --git a/src/Console/Commands/View/ViewDomainCommand.php b/src/Console/Commands/View/ViewDomainCommand.php
new file mode 100644
index 0000000..888afc3
--- /dev/null
+++ b/src/Console/Commands/View/ViewDomainCommand.php
@@ -0,0 +1,129 @@
+<?php
+declare(strict_types = 1);
+
+namespace Watchr\Console\Commands\View;
+
+use DateTimeInterface;
+use Exception;
+use InvalidArgumentException;
+use Psr\Clock\ClockInterface;
+use RuntimeException;
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Watchr\Console\Services\DomainService;
+use Watchr\Console\Traits\DateUtilsTrait;
+
+#[AsCommand('view:domain', 'View domain name details')]
+final class ViewDomainCommand extends Command {
+  use DateUtilsTrait;
+
+  private ClockInterface $clock;
+  private DomainService $domainService;
+
+  protected function configure(): void {
+    $this
+      ->addOption(
+        'json',
+        'j',
+        InputOption::VALUE_NONE,
+        'Format the output as a JSON string'
+      )
+      ->addArgument(
+        'domain',
+        InputArgument::REQUIRED,
+        'Domain Name to be viewed'
+      );
+  }
+
+  protected function execute(InputInterface $input, OutputInterface $output): int {
+    $jsonOutput = (bool)$input->getOption('json');
+    $domain = $input->getArgument('domain');
+    try {
+      if (
+        strpos($domain, '.') === false ||
+        filter_var($domain, FILTER_VALIDATE_DOMAIN, ['flags' => FILTER_FLAG_HOSTNAME]) === false
+      ) {
+        throw new InvalidArgumentException('argument <options=bold>domain</> contains an invalid domain name');
+      }
+
+      $info = $this->domainService->lookup($domain);
+      if ($info === null) {
+        throw new RuntimeException('Failed to load domain information');
+      }
+
+      if ($jsonOutput === true) {
+        $output->write(json_encode($info));
+
+        return Command::SUCCESS;
+      }
+
+      $now = $this->clock->now();
+
+      $lines = [];
+      $lines[] = sprintf('Domain: <options=bold>%s</>', $info->domainName);
+      $lines[] = 'Name Servers';
+      foreach ($info->nameServers as $nameServer) {
+        $lines[] = sprintf('  * <options=bold>%s</>', $nameServer);
+      }
+
+      $lines[] = sprintf(
+        'Creation date: <options=bold>%s</> (%s)',
+        $info->creationDate->format(DateTimeInterface::ATOM),
+        $this->humanReadableInterval($now->diff($info->creationDate))
+      );
+      $lines[] = sprintf(
+        'Expiration date: <options=bold>%s</> (%s)',
+        $info->expirationDate->format(DateTimeInterface::ATOM),
+        $this->humanReadableInterval($now->diff($info->expirationDate))
+      );
+      $lines[] = sprintf(
+        'Last update: <options=bold>%s</> (%s)',
+        $info->updatedDate->format(DateTimeInterface::ATOM),
+        $this->humanReadableInterval($now->diff($info->updatedDate))
+      );
+      $lines[] = 'EPP Flags';
+      foreach ($info->states as $state) {
+        $lines[] = sprintf('  * <options=bold>%s</>', $state);
+      }
+
+      $lines[] = sprintf('Registrar: <options=bold>%s</>', $info->registrar);
+      $lines[] = sprintf('DNSSEC: <options=bold>%s</>', $info->dnssec === null ? 'NO' : 'YES');
+
+      $output->writeln($lines);
+
+      return Command::SUCCESS;
+    } catch (Exception $exception) {
+      if ($jsonOutput === true) {
+        $out = ['error' => $exception->getMessage()];
+        if ($output->isDebug() === true) {
+          $out['trace'] = $exception->getTrace();
+        }
+
+        $output->write(json_encode($out));
+
+        return Command::FAILURE;
+      }
+
+      $output->writeln($exception->getMessage());
+      if ($output->isDebug() === true) {
+        $output->writeln($exception->getTraceAsString());
+      }
+
+      return Command::FAILURE;
+    }
+  }
+
+  public function __construct(
+    ClockInterface $clock,
+    DomainService $domainService
+  ) {
+    parent::__construct();
+
+    $this->clock = $clock;
+    $this->domainService = $domainService;
+  }
+}
diff --git a/src/Console/DataObjects/Domain/DnsSec.php b/src/Console/DataObjects/Domain/DnsSec.php
index e488c71..38c6e73 100644
--- a/src/Console/DataObjects/Domain/DnsSec.php
+++ b/src/Console/DataObjects/Domain/DnsSec.php
@@ -3,7 +3,9 @@
 
 namespace Watchr\Console\DataObjects\Domain;
 
-final class DnsSec {
+use JsonSerializable;
+
+final class DnsSec implements JsonSerializable {
   public readonly int|null $keyTag;
   public readonly int|null $algorithm;
   public readonly int|null $digestType;
@@ -20,4 +22,13 @@ public function __construct(
     $this->digestType = $digestType;
     $this->digest = $digest;
   }
+
+  public function jsonSerialize(): mixed {
+    return [
+      'keyTag' => $this->keyTag,
+      'algorithm' => $this->algorithm,
+      'digestType' => $this->digestType,
+      'digest' => $this->digest
+    ];
+  }
 }
diff --git a/src/Console/DataObjects/Domain/DomainInfo.php b/src/Console/DataObjects/Domain/DomainInfo.php
index 37c71e4..906c179 100644
--- a/src/Console/DataObjects/Domain/DomainInfo.php
+++ b/src/Console/DataObjects/Domain/DomainInfo.php
@@ -4,8 +4,9 @@
 namespace Watchr\Console\DataObjects\Domain;
 
 use DateTimeInterface;
+use JsonSerializable;
 
-final class DomainInfo {
+final class DomainInfo implements JsonSerializable {
   public readonly string $domainName;
   public readonly string $whoisServer;
   /**
@@ -50,4 +51,19 @@ public function __construct(
     $this->registrar = $registrar;
     $this->dnssec = $dnssec;
   }
+
+  public function jsonSerialize(): mixed {
+    return [
+      'domainName' => $this->domainName,
+      'whoisServer' => $this->whoisServer,
+      'nameServers' => $this->nameServers,
+      'creationDate' => $this->creationDate->format(DateTimeInterface::ATOM),
+      'expirationDate' => $this->expirationDate->format(DateTimeInterface::ATOM),
+      'updatedDate' => $this->updatedDate->format(DateTimeInterface::ATOM),
+      'states' => $this->states,
+      'owner' => $this->owner,
+      'registrar' => $this->registrar,
+      'dnssec' => $this->dnssec
+    ];
+  }
 }