.env

@@ -0,0 +1,30 @@
+# In all environments, the following files are loaded if they exist,
+# the latter taking precedence over the former:
+#
+#  * .env                contains default values for the environment variables needed by the app
+#  * .env.local          uncommitted file with local overrides
+#  * .env.$APP_ENV       committed environment-specific defaults
+#  * .env.$APP_ENV.local uncommitted environment-specific overrides
+#
+# Real environment variables win over .env files.
+#
+# DO NOT DEFINE PRODUCTION SECRETS IN THIS FILE NOR IN ANY OTHER COMMITTED FILES.
+# https://symfony.com/doc/current/configuration/secrets.html
+#
+# Run "composer dump-env prod" to compile .env files for production use (requires symfony/flex >=1.2).
+# https://symfony.com/doc/current/best_practices.html#use-environment-variables-for-infrastructure-configuration
+
+###> symfony/framework-bundle ###
+APP_ENV=dev
+APP_SECRET=your_secret_please_set_on_local_env
+###< symfony/framework-bundle ###
+
+###> doctrine/doctrine-bundle ###
+# Format described at https://www.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/configuration.html#connecting-using-a-url
+# IMPORTANT: You MUST configure your server version, either here or in config/packages/doctrine.yaml
+#
+# DATABASE_URL="sqlite:///%kernel.project_dir%/var/data.db"
+# DATABASE_URL="mysql://app:!ChangeMe!@127.0.0.1:3306/app?serverVersion=8.0.32&charset=utf8mb4"
+# DATABASE_URL="mysql://app:!ChangeMe!@127.0.0.1:3306/app?serverVersion=10.11.2-MariaDB&charset=utf8mb4"
+DATABASE_URL="postgresql://app:!ChangeMe!@127.0.0.1:5432/app?serverVersion=15&charset=utf8"
+###< doctrine/doctrine-bundle ###

.gitignore

@@ -0,0 +1,10 @@
+
+###> symfony/framework-bundle ###
+/.env.local
+/.env.local.php
+/.env.*.local
+/config/secrets/prod/prod.decrypt.private.php
+/public/bundles/
+/var/
+/vendor/
+###< symfony/framework-bundle ###

bin/console

@@ -0,0 +1,17 @@
+#!/usr/bin/env php
+<?php
+
+use App\Kernel;
+use Symfony\Bundle\FrameworkBundle\Console\Application;
+
+if (!is_file(dirname(__DIR__).'/vendor/autoload_runtime.php')) {
+    throw new LogicException('Symfony Runtime is missing. Try running "composer require symfony/runtime".');
+}
+
+require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
+
+return function (array $context) {
+    $kernel = new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
+
+    return new Application($kernel);
+};

composer.json

@@ -0,0 +1,75 @@
+{
+    "type": "project",
+    "license": "proprietary",
+    "minimum-stability": "stable",
+    "prefer-stable": true,
+    "require": {
+        "php": ">=8.1",
+        "ext-ctype": "*",
+        "ext-iconv": "*",
+        "doctrine/doctrine-bundle": "^2.10",
+        "doctrine/doctrine-migrations-bundle": "^3.2",
+        "doctrine/orm": "^2.15",
+        "scrivo/highlight.php": "v9.18.1.10",
+        "symfony/console": "6.3.*",
+        "symfony/dotenv": "6.3.*",
+        "symfony/flex": "^2",
+        "symfony/form": "6.3.*",
+        "symfony/framework-bundle": "6.3.*",
+        "symfony/runtime": "6.3.*",
+        "symfony/twig-bundle": "6.3.*",
+        "symfony/validator": "6.3.*",
+        "symfony/yaml": "6.3.*"
+    },
+    "config": {
+        "allow-plugins": {
+            "php-http/discovery": true,
+            "symfony/flex": true,
+            "symfony/runtime": true
+        },
+        "sort-packages": true
+    },
+    "autoload": {
+        "psr-4": {
+            "App\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "App\\Tests\\": "tests/"
+        }
+    },
+    "replace": {
+        "symfony/polyfill-ctype": "*",
+        "symfony/polyfill-iconv": "*",
+        "symfony/polyfill-php72": "*",
+        "symfony/polyfill-php73": "*",
+        "symfony/polyfill-php74": "*",
+        "symfony/polyfill-php80": "*",
+        "symfony/polyfill-php81": "*"
+    },
+    "scripts": {
+        "auto-scripts": {
+            "cache:clear": "symfony-cmd",
+            "assets:install %PUBLIC_DIR%": "symfony-cmd"
+        },
+        "post-install-cmd": [
+            "@auto-scripts"
+        ],
+        "post-update-cmd": [
+            "@auto-scripts"
+        ]
+    },
+    "conflict": {
+        "symfony/symfony": "*"
+    },
+    "extra": {
+        "symfony": {
+            "allow-contrib": false,
+            "require": "6.3.*"
+        }
+    },
+    "require-dev": {
+        "symfony/maker-bundle": "^1.50"
+    }
+}

config/bundles.php

@@ -0,0 +1,9 @@
+<?php
+
+return [
+    Symfony\Bundle\FrameworkBundle\FrameworkBundle::class => ['all' => true],
+    Doctrine\Bundle\DoctrineBundle\DoctrineBundle::class => ['all' => true],
+    Doctrine\Bundle\MigrationsBundle\DoctrineMigrationsBundle::class => ['all' => true],
+    Symfony\Bundle\MakerBundle\MakerBundle::class => ['dev' => true],
+    Symfony\Bundle\TwigBundle\TwigBundle::class => ['all' => true],
+];

config/packages/cache.yaml

@@ -0,0 +1,19 @@
+framework:
+    cache:
+        # Unique name of your app: used to compute stable namespaces for cache keys.
+        #prefix_seed: your_vendor_name/app_name
+
+        # The "app" cache stores to the filesystem by default.
+        # The data in this cache should persist between deploys.
+        # Other options include:
+
+        # Redis
+        #app: cache.adapter.redis
+        #default_redis_provider: redis://localhost
+
+        # APCu (not recommended with heavy random-write workloads as memory fragmentation can cause perf issues)
+        #app: cache.adapter.apcu
+
+        # Namespaced pools use the above "app" backend by default
+        #pools:
+            #my.dedicated.cache: null

config/packages/doctrine.yaml

@@ -0,0 +1,46 @@
+doctrine:
+    dbal:
+        url: '%env(resolve:DATABASE_URL)%'
+
+        # IMPORTANT: You MUST configure your server version,
+        # either here or in the DATABASE_URL env var (see .env file)
+        #server_version: '15'
+    orm:
+        auto_generate_proxy_classes: true
+        enable_lazy_ghost_objects: true
+        report_fields_where_declared: true
+        validate_xml_mapping: true
+        naming_strategy: doctrine.orm.naming_strategy.underscore_number_aware
+        auto_mapping: true
+        mappings:
+            App:
+                is_bundle: false
+                dir: '%kernel.project_dir%/src/Entity'
+                prefix: 'App\Entity'
+                alias: App
+
+when@test:
+    doctrine:
+        dbal:
+            # "TEST_TOKEN" is typically set by ParaTest
+            dbname_suffix: '_test%env(default::TEST_TOKEN)%'
+
+when@prod:
+    doctrine:
+        orm:
+            auto_generate_proxy_classes: false
+            proxy_dir: '%kernel.build_dir%/doctrine/orm/Proxies'
+            query_cache_driver:
+                type: pool
+                pool: doctrine.system_cache_pool
+            result_cache_driver:
+                type: pool
+                pool: doctrine.result_cache_pool
+
+    framework:
+        cache:
+            pools:
+                doctrine.result_cache_pool:
+                    adapter: cache.app
+                doctrine.system_cache_pool:
+                    adapter: cache.system

config/packages/doctrine_migrations.yaml

@@ -0,0 +1,6 @@
+doctrine_migrations:
+    migrations_paths:
+        # namespace is arbitrary but should be different from App\Migrations
+        # as migrations classes should NOT be autoloaded
+        'DoctrineMigrations': '%kernel.project_dir%/migrations'
+    enable_profiler: false

config/packages/framework.yaml

@@ -0,0 +1,25 @@
+# see https://symfony.com/doc/current/reference/configuration/framework.html
+framework:
+    secret: '%env(APP_SECRET)%'
+    #csrf_protection: true
+    http_method_override: false
+    handle_all_throwables: true
+
+    # Enables session support. Note that the session will ONLY be started if you read or write from it.
+    # Remove or comment this section to explicitly disable session support.
+    session:
+        handler_id: null
+        cookie_secure: auto
+        cookie_samesite: lax
+        storage_factory_id: session.storage.factory.native
+
+    #esi: true
+    #fragments: true
+    php_errors:
+        log: true
+
+when@test:
+    framework:
+        test: true
+        session:
+            storage_factory_id: session.storage.factory.mock_file

config/packages/routing.yaml

@@ -0,0 +1,12 @@
+framework:
+    router:
+        utf8: true
+
+        # Configure how to generate URLs in non-HTTP contexts, such as CLI commands.
+        # See https://symfony.com/doc/current/routing.html#generating-urls-in-commands
+        #default_uri: http://localhost
+
+when@prod:
+    framework:
+        router:
+            strict_requirements: null

config/packages/twig.yaml

@@ -0,0 +1,6 @@
+twig:
+    default_path: '%kernel.project_dir%/templates'
+
+when@test:
+    twig:
+        strict_variables: true

config/packages/validator.yaml

@@ -0,0 +1,13 @@
+framework:
+    validation:
+        email_validation_mode: html5
+
+        # Enables validator auto-mapping support.
+        # For instance, basic validation constraints will be inferred from Doctrine's metadata.
+        #auto_mapping:
+        #    App\Entity\: []
+
+when@test:
+    framework:
+        validation:
+            not_compromised_password: false

config/preload.php

@@ -0,0 +1,5 @@
+<?php
+
+if (file_exists(dirname(__DIR__).'/var/cache/prod/App_KernelProdContainer.preload.php')) {
+    require dirname(__DIR__).'/var/cache/prod/App_KernelProdContainer.preload.php';
+}

config/routes.yaml

@@ -0,0 +1,5 @@
+controllers:
+    resource:
+        path: ../src/Controller/
+        namespace: App\Controller
+    type: attribute

config/routes/framework.yaml

@@ -0,0 +1,4 @@
+when@dev:
+    _errors:
+        resource: '@FrameworkBundle/Resources/config/routing/errors.xml'
+        prefix: /_error

config/services.yaml

@@ -0,0 +1,24 @@
+# This file is the entry point to configure your own services.
+# Files in the packages/ subdirectory configure your dependencies.
+
+# Put parameters here that don't need to change on each machine where the app is deployed
+# https://symfony.com/doc/current/best_practices.html#use-parameters-for-application-configuration
+parameters:
+
+services:
+    # default configuration for services in *this* file
+    _defaults:
+        autowire: true      # Automatically injects dependencies in your services.
+        autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.
+
+    # makes classes in src/ available to be used as services
+    # this creates a service per class whose id is the fully-qualified class name
+    App\:
+        resource: '../src/'
+        exclude:
+            - '../src/DependencyInjection/'
+            - '../src/Entity/'
+            - '../src/Kernel.php'
+
+    # add more service definitions when explicit configuration is needed
+    # please note that last definitions always *replace* previous ones

migrations/Version20230720115905.php

@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+
+final class Version20230720115905 extends AbstractMigration
+{
+    public function up(Schema $schema): void
+    {
+        $this->addSql('CREATE SEQUENCE paste_id_seq INCREMENT BY 1 MINVALUE 1 START 1');
+        $this->addSql('CREATE TABLE paste (id INT NOT NULL, text TEXT NOT NULL, language VARCHAR(25), description TEXT, filename VARCHAR(128), author VARCHAR(128), publish_date TIMESTAMP(0) WITHOUT TIME ZONE NOT NULL, expiration_date TIMESTAMP(0) WITHOUT TIME ZONE, ip VARCHAR(39) NOT NULL, secret VARCHAR(40), PRIMARY KEY(id))');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('CREATE SCHEMA public');
+        $this->addSql('DROP SEQUENCE paste_id_seq CASCADE');
+        $this->addSql('DROP TABLE paste');
+    }
+}

public/css/ocean.css

@@ -0,0 +1,74 @@
+/* Ocean Dark Theme */
+/* https://github.com/gavsiu */
+/* Original theme - https://github.com/chriskempson/base16 */
+
+/* Ocean Comment */
+.hljs-comment,
+.hljs-quote {
+  color: #65737e;
+}
+
+/* Ocean Red */
+.hljs-variable,
+.hljs-template-variable,
+.hljs-tag,
+.hljs-name,
+.hljs-selector-id,
+.hljs-selector-class,
+.hljs-regexp,
+.hljs-deletion {
+  color: #bf616a;
+}
+
+/* Ocean Orange */
+.hljs-number,
+.hljs-built_in,
+.hljs-builtin-name,
+.hljs-literal,
+.hljs-type,
+.hljs-params,
+.hljs-meta,
+.hljs-link {
+  color: #d08770;
+}
+
+/* Ocean Yellow */
+.hljs-attribute {
+  color: #ebcb8b;
+}
+
+/* Ocean Green */
+.hljs-string,
+.hljs-symbol,
+.hljs-bullet,
+.hljs-addition {
+  color: #a3be8c;
+}
+
+/* Ocean Blue */
+.hljs-title,
+.hljs-section {
+  color: #8fa1b3;
+}
+
+/* Ocean Purple */
+.hljs-keyword,
+.hljs-selector-tag {
+  color: #b48ead;
+}
+
+.hljs {
+  display: block;
+  overflow-x: auto;
+  background: #2b303b;
+  color: #c0c5ce;
+  padding: 0.5em;
+}
+
+.hljs-emphasis {
+  font-style: italic;
+}
+
+.hljs-strong {
+  font-weight: bold;
+}

public/index.php

@@ -0,0 +1,9 @@
+<?php
+
+use App\Kernel;
+
+require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
+
+return function (array $context) {
+    return new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
+};

src/Controller/PasteController.php

@@ -0,0 +1,52 @@
+<?php
+declare(strict_types = 1); 
+
+namespace App\Controller; 
+
+use App\DTO\PasteFormData; 
+use App\Entity\CodeHighlighter; 
+use App\Entity\Paste; 
+use App\Form\Type\PasteForm; 
+use App\Repository\PasteRepository; 
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController; 
+use Symfony\Component\Routing\Annotation\Route; 
+use Symfony\Component\HttpFoundation\Response; 
+use Symfony\Component\HttpFoundation\Request; 
+
+
+class PasteController extends AbstractController
+{
+    #[Route('/', name: 'homepage')]
+    public function new(Request $request, PasteRepository $pasteRepository): Response
+    {
+        $pasteData = new PasteFormData(); 
+        $form = $this->createForm(PasteForm::class, $pasteData); 
+
+        $form->handleRequest($request); 
+        if ($form->isSubmitted() && $form->isValid()) {
+            $pasteData = $form->getData();
+
+            $paste = Paste::fromFormDataAndIp($pasteData, $request->getClientIp());
+            $pasteRepository->save($paste, true); 
+            
+            return $this->redirectToRoute('showpaste', ['id' => $paste->id, 'secret' => $paste->secret]); 
+        }
+
+        return $this->render('paste.html.twig', [
+            'form' => $form,
+        ]); 
+    }
+
+    #[Route('/{id}/{secret}', name: 'showpaste')]
+    public function showPaste(PasteRepository $pasteRepository, string $id, ?string $secret = NULL): Response
+    {
+        $paste = $pasteRepository->findOneBy(['id' => $id, 'secret' => $secret]);
+        $pasteData = new PasteFormData($paste);
+        $form = $this->createForm(PasteForm::class, $pasteData); 
+
+        return $this->render('show_paste.html.twig', [
+            'form' => $form,
+            'highlighted_text' => CodeHighlighter::highlight($pasteData->language, $pasteData->text)
+        ]);
+    }
+}

src/DTO/PasteFormData.php

@@ -0,0 +1,40 @@
+<?php
+declare(strict_types = 1); 
+
+namespace App\DTO; 
+
+use App\Entity\Paste;
+use Symfony\Component\Validator\Constraints as Assert; 
+
+
+class PasteFormData
+{
+    #[Assert\NotBlank]
+    public string $text; 
+    public bool $private; 
+    public ?string $language = null; 
+    public ?string $description = null; 
+    public ?string $filename = null; 
+    public ?string $author = null; 
+    public ?\DateTimeImmutable $expirationDate; 
+
+    public function __construct(?Paste $paste = null) 
+    {
+        if ($paste === null) {
+            return;
+        }
+
+        $this->fromPaste($paste);
+    }
+
+    private function fromPaste(Paste $paste)
+    {
+        $this->text = $paste->text;
+        $this->private = $paste->secret !== null;
+        $this->language = $paste->language;
+        $this->description = $paste->description;
+        $this->filename = $paste->filename;
+        $this->author = $paste->author !== null ? $paste->author : 'anonymous';
+        $this->expirationDate = $paste->expirationDate;
+    }
+}

src/Entity/CodeHighlighter.php

@@ -0,0 +1,26 @@
+<?php
+declare(strict_types = 1); 
+
+namespace App\Entity; 
+use \Highlight\Highlighter; 
+
+
+class CodeHighlighter
+{
+    public static function highlight(?string $language, string $code): string
+    {
+        $hl = new Highlighter();
+        
+        try {
+            // Highlight some code.
+            $highlighted = $hl->highlight($language, $code);
+            $highlighted_text =  "<pre><code class=\"hljs {$highlighted->language}\">".$highlighted->value.'</code></pre>';
+        }
+        catch (\DomainException $e) {
+            // This is thrown if the specified language does not exist
+            $highlighted_text = '<pre><code>'.htmlentities($code).'</code></pre>';
+        }
+
+        return $highlighted_text;
+    }
+}

src/Entity/Paste.php

@@ -0,0 +1,52 @@
+<?php
+declare(strict_types = 1); 
+
+namespace App\Entity; 
+use App\DTO\PasteFormData; 
+use App\Repository\PasteRepository; 
+use Doctrine\ORM\Mapping as ORM; 
+
+#[ORM\Entity(repositoryClass: PasteRepository::class)]
+class Paste 
+{
+    #[ORM\Id]
+    #[ORM\GeneratedValue]
+    #[ORM\Column]
+    public readonly int $id;
+
+    private function __construct(
+        #[ORM\Column(type: 'text', nullable: false)]
+        public readonly string $text,
+        #[ORM\Column(type: 'string', length: 25, nullable: true)]
+        public readonly ?string $language,
+        #[ORM\Column(type: 'text', nullable: true)]
+        public readonly ?string $description,
+        #[ORM\Column(type: 'string', length: 128, nullable: true)]
+        public readonly ?string $filename,
+        #[ORM\Column(type: 'string', length: 128, nullable: true)]
+        public readonly ?string $author,
+        #[ORM\Column(type: 'datetime_immutable', nullable: false)]
+        public readonly \DateTimeImmutable $publishDate,
+        #[ORM\Column(type: 'datetime_immutable', nullable: true)]
+        public readonly ?\DateTimeImmutable $expirationDate,
+        #[ORM\Column(type: 'string', length: 39, nullable: false)]
+        public readonly string $ip,
+        #[ORM\Column(type: 'string', length: 40, nullable: true)]
+        public readonly ?string $secret,
+        ) {}
+
+    public static function fromFormDataAndIp(PasteFormData $pasteFormData, $ip): Paste
+    {
+        return new self(
+            $pasteFormData->text,
+            $pasteFormData->language,
+            $pasteFormData->description,
+            $pasteFormData->filename,
+            $pasteFormData->author,
+            new \DateTimeImmutable(),
+            $pasteFormData->expirationDate,
+            $ip,
+            $pasteFormData->private ? \hash('sha1', \random_bytes(25)) : null,
+        );
+    }
+}

src/Form/Type/PasteForm.php

@@ -0,0 +1,43 @@
+<?php
+declare(strict_types = 1); 
+
+namespace App\Form\Type; 
+
+use Symfony\Component\Form\AbstractType; 
+use Symfony\Component\Form\FormBuilderInterface; 
+use Symfony\Component\Form\Extension\Core\Type\ChoiceType; 
+use Symfony\Component\Form\Extension\Core\Type\TextareaType; 
+use Symfony\Component\Form\Extension\Core\Type\TextType; 
+use Symfony\Component\Form\Extension\Core\Type\SubmitType; 
+use Symfony\Component\Form\Extension\Core\Type\DateTimeType; 
+use Symfony\Component\Form\Extension\Core\Type\CheckboxType; 
+
+
+class PasteForm extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $builder
+            ->add('language', ChoiceType::class, [
+                'choices' => [
+                    'Python' => 'python', 
+                    'PHP' => 'php', 
+                    'Plain text' => NULL,
+                    ]
+                ]
+            )
+            ->add('description', TextType::class, ['required' => false])
+            ->add('text', TextareaType::class)
+            ->add('author', TextType::class, ['attr' => ['maxlength' => 128], 'required' => false])
+            ->add('filename', TextType::class, ['required' => false, 'attr' => ['maxlength' =>128]])
+            ->add('expirationDate', DateTimeType::class, [
+                'required' => false, 
+                'date_widget' => 'single_text', 
+                'input' => 'datetime_immutable',
+                ]
+            )
+            ->add('private', CheckboxType::class, ['required' => false])
+            ->add('save', SubmitType::class)
+            ; 
+    }
+}

src/Kernel.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace App;
+
+use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
+use Symfony\Component\HttpKernel\Kernel as BaseKernel;
+
+class Kernel extends BaseKernel
+{
+    use MicroKernelTrait;
+}

src/Repository/PasteRepository.php

@@ -0,0 +1,26 @@
+<?php
+declare(strict_types = 1); 
+
+namespace App\Repository; 
+
+use App\Entity\Paste; 
+use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository; 
+use Doctrine\Persistence\ManagerRegistry; 
+
+class PasteRepository extends ServiceEntityRepository
+{
+    public function __construct(ManagerRegistry $registry)
+    {
+        parent::__construct($registry, Paste::class); 
+    }
+
+    public function save(Paste $paste, bool $flush = false): void
+    {
+        $entityManager = $this->getEntityManager(); 
+        $entityManager->persist($paste); 
+        
+        if ($flush) {
+            $entityManager->flush(); 
+        }
+    }
+}

symfony.lock

@@ -0,0 +1,119 @@
+{
+    "doctrine/doctrine-bundle": {
+        "version": "2.10",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "2.10",
+            "ref": "f0d8c9a4da17815830aac0d63e153a940ae176bb"
+        },
+        "files": [
+            "config/packages/doctrine.yaml",
+            "src/Entity/.gitignore",
+            "src/Repository/.gitignore"
+        ]
+    },
+    "doctrine/doctrine-migrations-bundle": {
+        "version": "3.2",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "3.1",
+            "ref": "1d01ec03c6ecbd67c3375c5478c9a423ae5d6a33"
+        },
+        "files": [
+            "config/packages/doctrine_migrations.yaml",
+            "migrations/.gitignore"
+        ]
+    },
+    "symfony/console": {
+        "version": "6.3",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "5.3",
+            "ref": "da0c8be8157600ad34f10ff0c9cc91232522e047"
+        },
+        "files": [
+            "bin/console"
+        ]
+    },
+    "symfony/flex": {
+        "version": "2.3",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "1.0",
+            "ref": "146251ae39e06a95be0fe3d13c807bcf3938b172"
+        },
+        "files": [
+            ".env"
+        ]
+    },
+    "symfony/framework-bundle": {
+        "version": "6.3",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "6.2",
+            "ref": "af47254c5e4cd543e6af3e4508298ffebbdaddd3"
+        },
+        "files": [
+            "config/packages/cache.yaml",
+            "config/packages/framework.yaml",
+            "config/preload.php",
+            "config/routes/framework.yaml",
+            "config/services.yaml",
+            "public/index.php",
+            "src/Controller/.gitignore",
+            "src/Kernel.php"
+        ]
+    },
+    "symfony/maker-bundle": {
+        "version": "1.50",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "1.0",
+            "ref": "fadbfe33303a76e25cb63401050439aa9b1a9c7f"
+        }
+    },
+    "symfony/routing": {
+        "version": "6.3",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "6.2",
+            "ref": "e0a11b4ccb8c9e70b574ff5ad3dfdcd41dec5aa6"
+        },
+        "files": [
+            "config/packages/routing.yaml",
+            "config/routes.yaml"
+        ]
+    },
+    "symfony/twig-bundle": {
+        "version": "6.3",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "6.3",
+            "ref": "b7772eb20e92f3fb4d4fe756e7505b4ba2ca1a2c"
+        },
+        "files": [
+            "config/packages/twig.yaml",
+            "templates/base.html.twig"
+        ]
+    },
+    "symfony/validator": {
+        "version": "6.3",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "5.3",
+            "ref": "c32cfd98f714894c4f128bb99aa2530c1227603c"
+        },
+        "files": [
+            "config/packages/validator.yaml"
+        ]
+    }
+}

templates/base.html.twig

@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="UTF-8">
+        <title>{% block title %}Copypaste{% endblock %}</title>
+        <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 128 128%22><text y=%221.2em%22 font-size=%2296%22>⚫️</text></svg>">
+        <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
+        {% block stylesheets %}
+        {% endblock %}
+    </head>
+    <body>
+        {% block content %}{% endblock %}
+        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
+    </body>
+</html>

templates/paste.html.twig

@@ -0,0 +1,6 @@
+{% extends "base.html.twig" %}
+
+{% block content %}
+    {{ form(form) }}
+{% endblock %}
+

templates/show_paste.html.twig

@@ -0,0 +1,24 @@
+{% extends "base.html.twig" %}
+
+{% block stylesheets %}
+  <link rel="stylesheet" href="/css/ocean.css"></link>
+{% endblock %}
+
+{% block content %}
+    <ul class="nav nav-tabs" id="myTab" role="tablist">
+        <li class="nav-item" role="presentation">
+            <button class="nav-link active" id="show-tab" data-bs-toggle="tab" data-bs-target="#show" type="button" role="tab" aria-controls="show" aria-selected="true">Show</button>
+        </li>
+        <li class="nav-item" role="presentation">
+            <button class="nav-link" id="profile-tab" data-bs-toggle="tab" data-bs-target="#edit" type="button" role="tab" aria-controls="edit" aria-selected="false">Edit</button>
+        </li>
+    </ul>
+    <div class="tab-content" id="myTabContent">
+        <div class="tab-pane fade show active" id="show" role="tabpanel" aria-labelledby="show-tab">
+            {{ highlighted_text|raw }}
+        </div>
+        <div class="tab-pane fade" id="edit" role="tabpanel" aria-labelledby="edit-tab">
+            {% include 'paste.html.twig' %}
+        </div>
+    </div>
+{% endblock %}