copied ffi definitions

lib/argon2_ffi_base.dart

@@ -1,7 +1,115 @@
 library argon2_ffi_base;
 
-/// A Calculator.
+import 'dart:convert';
-class Calculator {
+import 'dart:ffi';
-  /// Returns [value] plus 1.
+
-  int addOne(int value) => value + 1;
+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:ffi/ffi.dart';
+import 'package:ffi_helper/ffi_helper.dart';
+
+typedef Argon2HashNative = Pointer<Utf8> Function(
+  Pointer<Uint8> key,
+  Uint32 keyLen,
+  Pointer<Uint8> salt,
+  Uint32 saltlen,
+  Uint32 m_cost, // memory cost
+  Uint32 t_cost, // time cost (number iterations)
+  Uint32 parallelism,
+  IntPtr hashlen,
+  Uint8 type,
+  Uint32 version,
+);
+
+typedef Argon2Hash = Pointer<Utf8> Function(
+  Pointer<Uint8> key,
+  int keyLen,
+  Pointer<Uint8> salt,
+  int saltlen,
+  int m_cost, // memory cost
+  int t_cost, // time cost (number iterations)
+  int parallelism,
+  int hashlen,
+  int type,
+  int version,
+);
+
+class Argon2Ffi {
+  int Function(int x, int y) _nativeAdd;
+  Argon2Hash argon2hash;
+
+  Argon2Ffi() {
+    final argon2lib = Platform.isAndroid
+        ? DynamicLibrary.open('libargon2_ffi.so')
+        : Platform.isLinux
+            ? DynamicLibrary.open('libargon2_ffi_plugin.so')
+            : DynamicLibrary.executable();
+    _nativeAdd = argon2lib
+        .lookup<NativeFunction<Int32 Function(Int32, Int32)>>('native_add')
+        .asFunction();
+  }
+
+  int addIt(int x, int y) => _nativeAdd(x, y);
+}
+
+abstract class Argon2 {
+  Uint8List argon2(Argon2Arguments args);
+
+  Future<Uint8List> argon2Async(Argon2Arguments args);
+}
+
+class Argon2Arguments {
+  Argon2Arguments(this.key, this.salt, this.memory, this.iterations,
+      this.length, this.parallelism, this.type, this.version);
+
+  final Uint8List key;
+  final Uint8List salt;
+  final int memory;
+  final int iterations;
+  final int length;
+  final int parallelism;
+  final int type;
+  final int version;
+}
+
+abstract class Argon2Base extends Argon2 {
+//  @protected
+  Argon2Hash get argon2hash;
+
+  @override
+  Uint8List argon2(Argon2Arguments args) {
+    final keyArray = Uint8Array.fromTypedList(args.key);
+    final saltArray = Uint8Array.fromTypedList(args.salt);
+//    final saltArray = allocate<Uint8>(count: args.salt.length);
+//    final saltList = saltArray.asTypedList(args.length);
+//    saltList.setAll(0, args.salt);
+//    const memoryCost = 1 << 16;
+
+//    _logger.fine('saltArray: ${ByteUtils.toHexList(saltArray.view)}');
+
+    final result = argon2hash(
+      keyArray.rawPtr,
+      keyArray.length,
+      saltArray.rawPtr,
+      saltArray.length,
+      args.memory,
+      args.iterations,
+      args.parallelism,
+      args.length,
+      args.type,
+      args.version,
+    );
+
+    keyArray.free();
+    saltArray.free();
+//    free(saltArray);
+    final resultString = Utf8.fromUtf8(result);
+    return base64.decode(resultString);
+  }
+
+  @override
+  Future<Uint8List> argon2Async(Argon2Arguments args) async {
+    return argon2(args);
+  }
 }

pubspec.lock

@@ -1,20 +1,6 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
-  archive:
-    dependency: transitive
-    description:
-      name: archive
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.13"
-  args:
-    dependency: transitive
-    description:
-      name: args
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.6.0"
   async:
     dependency: transitive
     description:
@@ -22,20 +8,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.4.1"
-  boolean_selector:
-    dependency: transitive
-    description:
-      name: boolean_selector
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
-  charcode:
-    dependency: transitive
-    description:
-      name: charcode
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.3"
   collection:
     dependency: transitive
     description:
@@ -43,44 +15,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.14.12"
-  convert:
+  ffi:
-    dependency: transitive
-    description:
-      name: convert
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.1"
-  crypto:
-    dependency: transitive
-    description:
-      name: crypto
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.4"
-  flutter:
     dependency: "direct main"
-    description: flutter
-    source: sdk
-    version: "0.0.0"
-  flutter_test:
-    dependency: "direct dev"
-    description: flutter
-    source: sdk
-    version: "0.0.0"
-  image:
-    dependency: transitive
     description:
-      name: image
+      name: ffi
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.12"
+    version: "0.1.3"
-  matcher:
+  ffi_helper:
-    dependency: transitive
+    dependency: "direct main"
     description:
-      name: matcher
+      name: ffi_helper
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.6"
+    version: "1.4.0"
   meta:
     dependency: transitive
     description:
@@ -88,94 +36,5 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.8"
-  path:
-    dependency: transitive
-    description:
-      name: path
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.6.4"
-  petitparser:
-    dependency: transitive
-    description:
-      name: petitparser
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.4.0"
-  quiver:
-    dependency: transitive
-    description:
-      name: quiver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.3"
-  sky_engine:
-    dependency: transitive
-    description: flutter
-    source: sdk
-    version: "0.0.99"
-  source_span:
-    dependency: transitive
-    description:
-      name: source_span
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.7.0"
-  stack_trace:
-    dependency: transitive
-    description:
-      name: stack_trace
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.9.3"
-  stream_channel:
-    dependency: transitive
-    description:
-      name: stream_channel
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
-  string_scanner:
-    dependency: transitive
-    description:
-      name: string_scanner
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.5"
-  term_glyph:
-    dependency: transitive
-    description:
-      name: term_glyph
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.0"
-  test_api:
-    dependency: transitive
-    description:
-      name: test_api
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.15"
-  typed_data:
-    dependency: transitive
-    description:
-      name: typed_data
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.6"
-  vector_math:
-    dependency: transitive
-    description:
-      name: vector_math
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.8"
-  xml:
-    dependency: transitive
-    description:
-      name: xml
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.6.1"
 sdks:
   dart: ">=2.7.0 <3.0.0"

pubspec.yaml

@@ -8,46 +8,7 @@ environment:
   sdk: ">=2.7.0 <3.0.0"
 
 dependencies:
-  flutter:
+  ffi: ^0.1.3
-    sdk: flutter
+  ffi_helper: ^1.4.0
 
 dev_dependencies:
-  flutter_test:
-    sdk: flutter
-
-# For information on the generic Dart part of this file, see the
-# following page: https://dart.dev/tools/pub/pubspec
-
-# The following section is specific to Flutter.
-flutter:
-
-  # To add assets to your package, add an assets section, like this:
-  # assets:
-  #   - images/a_dot_burr.jpeg
-  #   - images/a_dot_ham.jpeg
-  #
-  # For details regarding assets in packages, see
-  # https://flutter.dev/assets-and-images/#from-packages
-  #
-  # An image asset can refer to one or more resolution-specific "variants", see
-  # https://flutter.dev/assets-and-images/#resolution-aware.
-
-  # To add custom fonts to your package, add a fonts section here,
-  # in this "flutter" section. Each entry in this list should have a
-  # "family" key with the font family name, and a "fonts" key with a
-  # list giving the asset and other descriptors for the font. For
-  # example:
-  # fonts:
-  #   - family: Schyler
-  #     fonts:
-  #       - asset: fonts/Schyler-Regular.ttf
-  #       - asset: fonts/Schyler-Italic.ttf
-  #         style: italic
-  #   - family: Trajan Pro
-  #     fonts:
-  #       - asset: fonts/TrajanPro.ttf
-  #       - asset: fonts/TrajanPro_Bold.ttf
-  #         weight: 700
-  #
-  # For details regarding fonts in packages, see
-  # https://flutter.dev/custom-fonts/#from-packages

test/argon2_ffi_base_test.dart

@@ -1,13 +0,0 @@
-import 'package:flutter_test/flutter_test.dart';
-
-import 'package:argon2_ffi_base/argon2_ffi_base.dart';
-
-void main() {
-  test('adds one to input values', () {
-    final calculator = Calculator();
-    expect(calculator.addOne(2), 3);
-    expect(calculator.addOne(-7), -6);
-    expect(calculator.addOne(0), 1);
-    expect(() => calculator.addOne(null), throwsNoSuchMethodError);
-  });
-}