Initial commit

.dockerignore

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+.dockerignore
+Dockerfile
+build/
+.dart_tool/
+.git/
+.github/
+.gitignore
+.idea/
+.packages

.gitignore

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+# Files and directories created by pub.
+.dart_tool/
+.packages
+
+# Conventional directory for build output.
+build/

CHANGELOG.md

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+## 1.0.0
+
+- Initial version.

Dockerfile

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+# Use latest stable channel SDK.
+FROM dart:stable AS build
+
+# Resolve app dependencies.
+WORKDIR /app
+COPY pubspec.* ./
+RUN dart pub get
+
+# Copy app source code (except anything in .dockerignore) and AOT compile app.
+COPY . .
+RUN dart compile exe bin/server.dart -o bin/server
+
+# Build minimal serving image from AOT-compiled `/server`
+# and the pre-built AOT-runtime in the `/runtime/` directory of the base image.
+FROM scratch
+COPY --from=build /runtime/ /
+COPY --from=build /app/bin/server /app/bin/
+
+# Start server.
+EXPOSE 8080
+CMD ["/app/bin/server"]

README.md

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+A server app built using [Shelf](https://pub.dev/packages/shelf),
+configured to enable running with [Docker](https://www.docker.com/).
+
+This sample code handles HTTP GET requests to `/` and `/echo/<message>`
+
+# Running the sample
+
+## Running with the Dart SDK
+
+You can run the example with the [Dart SDK](https://dart.dev/get-dart)
+like this:
+
+```
+$ dart run bin/server.dart
+Server listening on port 8080
+```
+
+And then from a second terminal:
+```
+$ curl http://0.0.0.0:8080
+Hello, World!
+$ curl http://0.0.0.0:8080/echo/I_love_Dart
+I_love_Dart
+```
+
+## Running with Docker
+
+If you have [Docker Desktop](https://www.docker.com/get-started) installed, you
+can build and run with the `docker` command:
+
+```
+$ docker build . -t myserver
+$ docker run -it -p 8080:8080 myserver
+Server listening on port 8080
+```
+
+And then from a second terminal:
+```
+$ curl http://0.0.0.0:8080
+Hello, World!
+$ curl http://0.0.0.0:8080/echo/I_love_Dart
+I_love_Dart
+```
+
+You should see the logging printed in the first terminal:
+```
+2021-05-06T15:47:04.620417  0:00:00.000158 GET     [200] /
+2021-05-06T15:47:08.392928  0:00:00.001216 GET     [200] /echo/I_love_Dart
+```

analysis_options.yaml

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+# This file configures the static analysis results for your project (errors,
+# warnings, and lints).
+#
+# This enables the 'recommended' set of lints from `package:lints`.
+# This set helps identify many issues that may lead to problems when running
+# or consuming Dart code, and enforces writing Dart using a single, idiomatic
+# style and format.
+#
+# If you want a smaller set of lints you can change this to specify
+# 'package:lints/core.yaml'. These are just the most critical lints
+# (the recommended set includes the core lints).
+# The core lints are also what is used by pub.dev for scoring packages.
+
+include: package:lints/recommended.yaml
+
+# Uncomment the following section to specify additional rules.
+
+# linter:
+#   rules:
+#     - camel_case_types
+
+# analyzer:
+#   exclude:
+#     - path/to/excluded/files/**
+
+# For more information about the core and recommended set of lints, see
+# https://dart.dev/go/core-lints
+
+# For additional information about configuring this file, see
+# https://dart.dev/guides/language/analysis-options

bin/server.dart

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+import 'dart:convert';
+import 'dart:io';
+
+import 'package:shelf/shelf.dart';
+import 'package:shelf/shelf_io.dart';
+import 'package:shelf_router/shelf_router.dart';
+
+// Load confirmation token from env
+final confirmationToken = Platform.environment['CONFIRMATION_TOKEN'];
+// Load secret key from env
+final secretKey = Platform.environment['SECRET_KEY'];
+
+// Configure routes.
+final _router = Router()
+  ..get('/', _rootHandler)
+  ..post('/vk', _vkHandler);
+
+Response _rootHandler(Request req) {
+  return Response.ok('Hello, World!\n');
+}
+
+Future<Response> _vkHandler(Request req) async {
+  // POST request should contain a JSON body.
+  // JSON must contain a 'type' field.
+  // The value of the 'type' field must be one of the following:
+  //   'confirmation'
+  //   'wall_post_new'
+  // If we recieve a 'confirmation' request, we should respond with a confirmationToken.
+  // If we recieve a 'wall_post_new' request, we should validate if 'secret' field equals
+  // secretKey and respond with an 'ok' string, printing request in the console.
+
+  final requestBody = await req.readAsString();
+  final requestJson = json.decode(requestBody);
+  final requestType = requestJson['type'];
+
+  if (requestType == 'confirmation') {
+    return Response.ok(confirmationToken);
+  } else if (requestType == 'wall_post_new') {
+    if (requestJson['secret'] == secretKey) {
+      print(requestBody);
+      return Response.ok('ok');
+    } else {
+      return Response.ok('invalid secret');
+    }
+  } else {
+    return Response.ok('invalid request type');
+  }
+}
+
+// Future<void> _postOnMastodon(reqJson) async {
+//   // Called to repost the post on Mastodon on vk.
+//   // reqJson contains the 'object' field of the VK post.
+//   // This object has the 'text' field with the post text.
+//   // Also it contains the 'attachments' field with the attachments.
+//   // The attachments field is an array of objects.
+// }
+
+void main(List<String> args) async {
+  
+  // Use any available host or container IP (usually `0.0.0.0`).
+  final ip = InternetAddress.anyIPv4;
+
+  // Configure a pipeline that logs requests.
+  final _handler = Pipeline().addMiddleware(logRequests()).addHandler(_router);
+
+  // For running in containers, we respect the PORT environment variable.
+  final port = int.parse(Platform.environment['PORT'] ?? '8080');
+  final server = await serve(_handler, ip, port);
+  print('Server listening on port ${server.port}');
+}

pubspec.lock

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+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  _fe_analyzer_shared:
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "39.0.0"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.0"
+  args:
+    dependency: "direct main"
+    description:
+      name: args
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.3.0"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.9.0"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.16.0"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  coverage:
+    dependency: transitive
+    description:
+      name: coverage
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  dio:
+    dependency: "direct main"
+    description:
+      name: dio
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.6"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.1.2"
+  frontend_server_client:
+    dependency: transitive
+    description:
+      name: frontend_server_client
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.2"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.2"
+  http:
+    dependency: "direct dev"
+    description:
+      name: http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.13.4"
+  http_methods:
+    dependency: transitive
+    description:
+      name: http_methods
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  http_multi_server:
+    dependency: transitive
+    description:
+      name: http_multi_server
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.2.0"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.0"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.3"
+  lints:
+    dependency: "direct dev"
+    description:
+      name: lints
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.11"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.0"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  node_preamble:
+    dependency: transitive
+    description:
+      name: node_preamble
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.2"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.1"
+  pool:
+    dependency: transitive
+    description:
+      name: pool
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.5.0"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  shelf:
+    dependency: "direct main"
+    description:
+      name: shelf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  shelf_packages_handler:
+    dependency: transitive
+    description:
+      name: shelf_packages_handler
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  shelf_router:
+    dependency: "direct main"
+    description:
+      name: shelf_router
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.2"
+  shelf_static:
+    dependency: transitive
+    description:
+      name: shelf_static
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  shelf_web_socket:
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  source_map_stack_trace:
+    dependency: transitive
+    description:
+      name: source_map_stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  source_maps:
+    dependency: transitive
+    description:
+      name: source_maps
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.10"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.0"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.10.0"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  test:
+    dependency: "direct dev"
+    description:
+      name: test
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.21.0"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.4.9"
+  test_core:
+    dependency: transitive
+    description:
+      name: test_core
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.4.13"
+  test_process:
+    dependency: "direct dev"
+    description:
+      name: test_process
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.2"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.0"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "8.2.2"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  web_socket_channel:
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  webkit_inspection_protocol:
+    dependency: transitive
+    description:
+      name: webkit_inspection_protocol
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.0"
+sdks:
+  dart: ">=2.14.4 <3.0.0"

pubspec.yaml

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+name: mastodon_vk_reposter
+description: A server app using the shelf package and Docker.
+version: 1.0.0
+# homepage: https://www.example.com
+
+environment:
+  sdk: '>=2.14.4 <3.0.0'
+
+
+dependencies:
+  args: ^2.0.0
+  dio: ^4.0.6
+  shelf: ^1.1.0
+  shelf_router: ^1.0.0
+
+dev_dependencies:
+  http: ^0.13.0
+  lints: ^1.0.0
+  test_process: ^2.0.0
+  test: ^1.15.0

test/server_test.dart

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+import 'package:http/http.dart';
+import 'package:test/test.dart';
+import 'package:test_process/test_process.dart';
+
+void main() {
+  final port = '8080';
+  final host = 'http://0.0.0.0:$port';
+
+  setUp(() async {
+    await TestProcess.start(
+      'dart',
+      ['run', 'bin/server.dart'],
+      environment: {'PORT': port},
+    );
+  });
+
+  test('Root', () async {
+    final response = await get(Uri.parse(host + '/'));
+    expect(response.statusCode, 200);
+    expect(response.body, 'Hello, World!\n');
+  });
+
+  test('Echo', () async {
+    final response = await get(Uri.parse(host + '/echo/hello'));
+    expect(response.statusCode, 200);
+    expect(response.body, 'hello\n');
+  });
+  test('404', () async {
+    final response = await get(Uri.parse(host + '/foobar'));
+    expect(response.statusCode, 404);
+  });
+}