Tizian 「ティツィアーン」
7f6147d689
Stage 1 of the public tier (ADR 0005). A person with an identity has a public profile: a handle by Mastodon's rules (1 to 30 letters, digits or underscores, unique whatever its case, a few kept for the instance), changeable until they first publish, on the instance's account domain (ACCOUNT_DOMAIN, else the server's host; the instance info names it), so `raisondetredev@halkyon.eu`; a display name, a bio, up to four links and an avatar. The table is server only: the app gets a Profile without the person's id. ProfileEndpoint (identified only) reads, saves and removes the caller's own; ProfilesEndpoint finds anyone's by handle. An avatar is a PNG of at most 1 MB that the app draws anew from the picture chosen, its middle square at 400 pixels, so a photo's metadata never leaves the device. The server keeps it in the public storage named by its content, so its URL tells nothing about whose it is, and deletes it once no profile shows it. Deleting a person deletes their profile and its picture. In the app, the Profile tab holds the profile as a form, laid out as the old app's; anonymous people are told GitHub sign-in gives them one. Migration 20261009184924904-public-profiles creates public_profile with a unique index on the person and one on the handle in lower case; it touches no other table, and the old server never sees it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MMm7usAo6q9ZZRoPkWjoxi Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
66 lines
2 KiB
Dart
66 lines
2 KiB
Dart
import 'dart:typed_data';
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import 'dart:ui' as ui;
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import 'package:flutter_test/flutter_test.dart';
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import 'package:halkyon_learn_flutter/src/feature/profile/data/avatar_image.dart';
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/// A PNG [width] × [height], red on its left half, blue on its right.
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Future<Uint8List> picture(int width, int height) async {
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final recorder = ui.PictureRecorder();
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ui.Canvas(recorder)
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..drawRect(
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ui.Rect.fromLTWH(0, 0, width / 2, height.toDouble()),
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ui.Paint()..color = const ui.Color(0xFFFF0000),
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)
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..drawRect(
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ui.Rect.fromLTWH(width / 2, 0, width / 2, height.toDouble()),
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ui.Paint()..color = const ui.Color(0xFF0000FF),
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);
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final image = await recorder.endRecording().toImage(width, height);
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final png = await image.toByteData(format: ui.ImageByteFormat.png);
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return png!.buffer.asUint8List();
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}
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Future<ui.Image> decoded(Uint8List png) async {
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final codec = await ui.instantiateImageCodec(png);
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return (await codec.getNextFrame()).image;
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}
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void main() {
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TestWidgetsFlutterBinding.ensureInitialized();
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test('a picture becomes its middle square, at most 400 pixels a side, as '
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'a PNG', () async {
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final wide = await avatarPng(await picture(1200, 600));
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final image = await decoded(wide);
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expect((image.width, image.height), (400, 400));
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expect(wide.sublist(0, 8), [
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0x89,
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0x50,
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0x4e,
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0x47,
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0x0d,
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0x0a,
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0x1a,
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0x0a,
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]);
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// The middle square of a picture red and blue side by side holds both.
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final pixels = (await image.toByteData())!;
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expect(pixels.getUint8(0), greaterThan(200));
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expect(pixels.getUint8(399 * 4 + 2), greaterThan(200));
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});
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test('a small picture keeps its size', () async {
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final image = await decoded(await avatarPng(await picture(100, 160)));
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expect((image.width, image.height), (100, 100));
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});
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test('what is no picture is refused', () async {
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await expectLater(
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avatarPng(Uint8List.fromList([1, 2, 3])),
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throwsA(anything),
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);
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});
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}
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