<?php
/*************************************************************
# 076 License

Copyright (c) テクニカル諏訪子

Permission is hereby granted to any person obtaining a copy of the software
Little Beast (the "Software") to use, modify, merge, copy, publish, distribute,
sublicense, and/or sell copies of the Software, subject to the following conditions:

    1. **Origin Attribution**:
       - You must not misrepresent the origin of the Software; you must not claim
         you created the original Software.
       - If the Software is used in a product, you must either:
         a. Provide clear attribution in the product's documentation, user interface,
            or other visible areas, **OR**
         b. Pay the original developers a fee they specify in writing.
    2. **Usage Restriction**:
       - The Software, or any derivative works, dependencies, or libraries
         incorporating it, must not be used for censorship or to suppress freedom of
         speech, expression, or creativity. Prohibited uses include, but are not
         limited to:
         - Censorship of so-called "hate speech", visuals, non-mainstream opinions,
           ideas, or objective reality.
         - Tools or systems designed to restrict access to information or
           artistic works.
    3. **Notice Preservation**:
       - This license and the above copyright notice must remain intact in all copies
         of the source code.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
namespace Std\Test;

require_once __DIR__.'/../../../autoload.php';

use Std\Lib\Tester;
use Std\Lib\Activitypub;
use Std\Lib\Fedi\{Fedi, Actor, Social, Delivery, Inbox, Timeline, Remote, Notes, Html, Media};

$test = new Tester([
  'colorOutput' => true,
  'verboseOutput' => true
]);

// 2つのサーバー（A・B）を1つのプロセスで動かす。公開IPのURLなので名前解決は要らない
$tmp = sys_get_temp_dir().'/lbfedi_'.bin2hex(random_bytes(6));
$inst = ['A' => 'https://1.1.1.1', 'B' => 'https://8.8.8.8'];
$use = function(string $n) use ($tmp, $inst): void {
  Fedi::$baseUrl = $inst[$n];
  Fedi::$dataDir = "{$tmp}/{$n}/ap";
  Fedi::$userDir = "{$tmp}/{$n}/user/";
  if (!is_dir(Fedi::$userDir)) mkdir(Fedi::$userDir, 0700, true);
};
$mkuser = function(string $n, string $name, int $id, int $role = 1) use ($use): void {
  $use($n);
  file_put_contents(Fedi::$userDir."{$id}.{$name}.json", json_encode([
    'id' => $id, 'username' => $name, 'displayname' => ucfirst($name), 'bio' => "I am {$name}", 'avatar' => '',
    'email' => "{$name}@example.com", 'regDate' => time(), 'gender' => -1, 'role' => $role, 'namecolor' => '',
  ]));
};
// 相手のサーバーのアクターをキャッシュに入れる（取得しなくても良い様に）
$seed = function(string $from, string $to, string $name) use ($use): void {
  $use($to);
  $doc = Actor::document(Fedi::localActor($name));
  $use($from);
  Remote::cacheActor($doc);
};
// 待ち行列を相手のサーバーの受付ボックスに届ける
$pump = function() use ($use, $inst): array {
  $log = [];
  for ($round = 0; $round < 5; $round++) {
    $any = false;
    foreach (array_keys($inst) as $n) {
      $use($n);
      foreach (glob(Fedi::path('queue/').'*.json') ?: [] as $f) {
        $job = json_decode(file_get_contents($f), true);
        unlink($f);
        $any = true;
        $dest = array_search('https://'.parse_url($job['inbox'], PHP_URL_HOST), $inst, true);
        $use($dest);
        [$code] = Inbox::handle($job['activity']);
        $log[] = "{$job['activity']['type']}:{$code}";
        $use($n);
      }
    }
    if (!$any) break;
  }
  return $log;
};
$alice = 'https://1.1.1.1/ap/users/alice';
$carol = 'https://1.1.1.1/ap/users/carol';
$bob = 'https://8.8.8.8/ap/users/bob';

$test->describe('Fediverseの本文', function($test): void {
  if (!ACTIVITYPUB_ENABLED) {
    $test->skipAll('ACTIVITYPUB_ENABLEDが無効');
  }
  $test->it('メンションとハッシュタグを取り出すはず', function($test): void {
    $t = "Hi @bob@b.example and @alice! #タグ #php https://x.example/#notatag @not@url";
    $test->assertEquals(['@bob@b.example' => ['bob', 'b.example'], '@alice' => ['alice', null]], Html::mentions($t));
    $test->assertEquals(['タグ', 'php'], Html::hashtags($t));
  });

  $test->it('プレーンテキストをHTMLにするはず', function($test): void {
    Fedi::$baseUrl = 'https://1.1.1.1';
    $html = Html::render("Hi @bob@b.example <b>\nhttps://x.example/a?b=1, #tag\n\nnext", ['@bob@b.example' => 'https://8.8.8.8/ap/users/bob']);
    $test->assertStringContains('<span class="h-card"><a href="https://8.8.8.8/ap/users/bob" class="u-url mention">@<span>bob</span></a></span>', $html);
    $test->assertStringContains('&lt;b&gt;<br />', $html);
    $test->assertStringContains('<a href="https://x.example/a?b=1" rel="nofollow noopener noreferrer">x.example/a?b=1</a>,', $html);
    $test->assertStringContains('<a href="https://1.1.1.1/microblog/tag/tag" class="mention hashtag" rel="tag">#<span>tag</span></a>', $html);
    $test->assertStringContains('</p><p>next</p>', $html);
    // 解決出来なかったメンションはリンクにしない
    $test->assertEquals('<p>@nobody@x.example</p>', Html::render('@nobody@x.example'));
  });

  $test->it('Markdownを描画するはず', function($test): void {
    Fedi::$baseUrl = 'https://1.1.1.1';
    $r = fn(string $t) => Html::render($t);
    $test->assertEquals('<p><strong>太字</strong>と<em>斜体</em>と<del>線</del>と<code>&lt;b&gt;*x*</code></p>', $r('**太字**と*斜体*と~~線~~と`<b>*x*`'));
    $test->assertEquals('<p><a href="https://x.example/a" rel="nofollow noopener noreferrer"><strong>リンク</strong></a></p>', $r('[**リンク**](https://x.example/a)'));
    // javascript:等はリンクにしない
    $test->assertEquals('<p>[x](javascript:alert(1))</p>', $r('[x](javascript:alert(1))'));
    $test->assertEquals('<ul><li>a</li><li><em>b</em></li></ul><ol><li>one</li><li>two</li></ol>', $r("- a\n* *b*\n\n1. one\n2. two"));
    $test->assertEquals('<blockquote><p>引用<br /><strong>強</strong></p></blockquote><p>本文</p>', $r("> 引用\n> **強**\n\n本文"));
    $test->assertEquals("<pre><code>**そのまま** #tag @bob\n&lt;script&gt;</code></pre>", $r("```php\n**そのまま** #tag @bob\n<script>\n```"));
    // snake_caseや@user_nameは斜体にしない、\*はそのまま
    $test->assertEquals('<p>snake_case_name @a_b_c 2*3 \\ *x*</p>', $r('snake_case_name @a_b_c 2\*3 \\\\ \*x\*'));
    // コードの中のメンションとタグは使わない
    $test->assertEquals([], Html::mentions("`@bob@b.example`\n```\n@carol\n```"));
    $test->assertEquals(['real'], Html::hashtags("`#code` #real"));
    // 見出しは扱わない（「# 」はタグでもない）
    $test->assertEquals('<p># 見出し</p>', $r('# 見出し'));
  });

  $test->it('リモートのHTMLを安全にするはず', function($test): void {
    $out = Html::sanitize('<p onclick="x">Hi <a href="javascript:alert(1)">x</a> <a href="https://e.x/" class="mention evil" target="_blank">@u</a>'
      .'<script>alert(1)</script><img src=x onerror=alert(1)><style>p{}</style><iframe src="https://e.x"></iframe><b>日本語</b></p>');
    $test->assertFalse(str_contains($out, '<script'));
    $test->assertFalse(str_contains($out, 'onerror'));
    $test->assertFalse(str_contains($out, 'onclick'));
    $test->assertFalse(str_contains($out, 'javascript:'));
    $test->assertFalse(str_contains($out, '<img'));
    $test->assertFalse(str_contains($out, '<iframe'));
    $test->assertFalse(str_contains($out, 'target='));
    $test->assertStringContains('<a href="https://e.x/" class="mention" rel="nofollow noopener noreferrer">@u</a>', $out);
    $test->assertStringContains('<b>日本語</b>', $out);
    $test->assertEquals("a\nb", Html::text('<p>a<br>b</p>'));
  });

  $test->it('FEDIINFOのdomainをURLにするはず', function($test): void {
    $test->assertEquals('https://technicalsuwako.moe', Fedi::normalizeDomain('technicalsuwako.moe'));
    $test->assertEquals('https://technicalsuwako.moe', Fedi::normalizeDomain('https://technicalsuwako.moe/'));
    $test->assertEquals('http://127.0.0.1:8000', Fedi::normalizeDomain('http://127.0.0.1:8000'));
    $test->assertEquals('', Fedi::normalizeDomain(''));
  });

  $test->it('公開範囲を判断するはず', function($test): void {
    $f = 'https://x.example/users/a/followers';
    $test->assertEquals('public', Fedi::visibility([Fedi::PUBLIC], [$f]));
    $test->assertEquals('unlisted', Fedi::visibility([$f], [Fedi::PUBLIC]));
    $test->assertEquals('followers', Fedi::visibility([$f], []));
    $test->assertEquals('direct', Fedi::visibility(['https://x.example/users/b'], []));
  });
});

$test->describe('アップロードした画像', function($test): void {
  $test->it('中身で種類を判断するはず', function($test): void {
    $test->assertEquals('image/png', Media::detect("\x89PNG\r\n\x1a\nxxxx"));
    $test->assertEquals('image/jpeg', Media::detect("\xff\xd8\xff\xe0xxxx"));
    $test->assertEquals('image/gif', Media::detect('GIF89axxxx'));
    $test->assertEquals('image/webp', Media::detect('RIFF'.pack('V', 100).'WEBPVP8 '));
    $test->assertNull(Media::detect('<?php echo 1;'));
    $test->assertEquals('video/mp4', Media::detect("\0\0\0\x20ftypisom\0\0\x02\0"));
    $test->assertEquals('video/mp4', Media::detect("\0\0\0\x18ftypmp42\0\0\0\0"));
    $test->assertNull(Media::detect("\0\0\0\x1cftypavif\0\0\0\0"));
    $test->assertNull(Media::detect("\0\0\0\x14ftypqt  \0\0\0\0"));
    $test->assertEquals('video/webm', Media::detect("\x1a\x45\xdf\xa3\x9f\x42\x86\x81\x01\x42\x82\x84webm"));
    $test->assertEquals('video/matroska', Media::detect("\x1a\x45\xdf\xa3\x9f\x42\x86\x81\x01\x42\x82\x88matroska"));
    $test->assertNull(Media::detect("\x1a\x45\xdf\xa3\x9f\x42\x86\x81\x01"));
  });

  $test->it('アイコンには動画を使えないはず', function($test): void {
    $tmp = tempnam(sys_get_temp_dir(), 'lbmedia');
    file_put_contents($tmp, "\0\0\0\x18ftypmp42\0\0\0\0".str_repeat("\0", 16));
    $file = ['name' => 'a.mp4', 'tmp_name' => $tmp, 'size' => filesize($tmp), 'error' => UPLOAD_ERR_OK];
    $res = Media::save($file, 'test', '', false);
    @unlink($tmp);
    $test->assertFalse($res->isSuccess);
    $test->assertStringContains('画像だけ', $res->message);
  });

  $test->it('MP4のメタデータを同じ大きさの空きにするはず', function($test): void {
    $box = fn(string $t, string $d) => pack('N', strlen($d) + 8).$t.$d;
    $mdat = $box('mdat', 'FRAMES');
    $mp4 = $box('ftyp', 'isom'.pack('N', 512).'isomiso2')
         .$box('moov', $box('mvhd', "\0\0\0\0".'DATEDATE'.str_repeat("\1", 12))
                      .$box('trak', $box('tkhd', 'TKHD').$box('udta', $box("\xa9xyz", '+35.6+139.7/')))
                      .$box('udta', $box("\xa9day", '2026-11-11')).$box('meta', 'Apple iPhone'))
         .$box('uuid', 'XMPxmp:CreatorTool')
         .$mdat;
    $out = Media::strip($mp4, 'video/mp4');
    $test->assertEquals(strlen($mp4), strlen($out));
    foreach (['+35.6+139.7', '2026-11-11', 'iPhone', 'CreatorTool', 'udta', 'meta', 'uuid', 'DATEDATE'] as $s) $test->assertFalse(str_contains($out, $s));
    foreach (['mvhd', 'tkhd', 'TKHD', 'mdat', 'FRAMES'] as $s) $test->assertStringContains($s, $out);
    // 動画のデータの位置は変わらない
    $test->assertEquals(strpos($mp4, $mdat), strpos($out, $mdat));
  });

  $test->it('JPEG・PNG・WebPのメタデータを取り除くはず', function($test): void {
    $exif = "\xff\xe1".pack('n', 12).'Exif'."\0\0GPS!";
    $jfif = "\xff\xe0".pack('n', 6).'JFIF';
    $com = "\xff\xfe".pack('n', 6).'note';
    $jpeg = "\xff\xd8".$jfif.$exif.$com."\xff\xda".pack('n', 2)."DATA\xff\xd9";
    $out = Media::strip($jpeg, 'image/jpeg');
    $test->assertFalse(str_contains($out, 'GPS!'));
    $test->assertFalse(str_contains($out, 'note'));
    $test->assertStringContains('JFIF', $out);
    $test->assertTrue(str_ends_with($out, "DATA\xff\xd9"));

    $chunk = fn($t, $d) => pack('N', strlen($d)).$t.$d.pack('N', crc32($t.$d));
    $png = "\x89PNG\r\n\x1a\n".$chunk('IHDR', pack('NNCCCCC', 1, 1, 8, 2, 0, 0, 0)).$chunk('tEXt', "Comment\0secret")
         .$chunk('eXIf', 'MM').$chunk('IDAT', 'x').$chunk('IEND', '');
    $out = Media::strip($png, 'image/png');
    $test->assertFalse(str_contains($out, 'secret'));
    $test->assertFalse(str_contains($out, 'eXIf'));
    $test->assertStringContains('IDAT', $out);
    $test->assertStringContains('IEND', $out);

    $riff = fn($t, $d) => $t.pack('V', strlen($d)).$d.(strlen($d) & 1 ? "\0" : '');
    $body = $riff('VP8X', "\x0c\0\0\0\0\0\0\0\0\0").$riff('VP8L', 'IMG').$riff('EXIF', 'GPS!').$riff('XMP ', '<x:secret/>');
    $out = Media::strip('RIFF'.pack('V', 4 + strlen($body)).'WEBP'.$body, 'image/webp');
    $test->assertFalse(str_contains($out, 'GPS!'));
    $test->assertFalse(str_contains($out, 'secret'));
    $test->assertStringContains('IMG', $out);
    $test->assertEquals(0, ord($out[20]) & 0x0c);
    $test->assertEquals(strlen($out) - 8, unpack('V', substr($out, 4, 4))[1]);
  });
});

$test->describe('マルチユーザーのFediverse（2つのサーバー）', function($test) use ($use, $mkuser, $seed, $pump, $tmp, $alice, $bob, $carol): void {
  if (!ACTIVITYPUB_MULTIUSER) {
    $test->skipAll('マルチユーザーモードが無効（FEDIINFOのisSingleUserがtrue、又はAUTH_ENABLEDが無効）');
  }
  if (ACTIVITYPUB_MULTIUSER) {
    $mkuser('A', 'alice', 1);
    $mkuser('A', 'carol', 2);
    $mkuser('A', 'dave', 3, 0); // BANされた
    $mkuser('B', 'bob', 1);
    $seed('A', 'B', 'bob');
    $seed('B', 'A', 'alice');
    $seed('B', 'A', 'carol');
    $use('A');
    Fedi::write(Fedi::path('remote/webfinger/'.sha1('bob@b.example').'.json'), ['url' => $bob, 'at' => time()]);
  }

  $test->it('アクターとWebFingerを返すはず', function($test) use ($use, $alice): void {
    $use('A');
    $doc = Actor::document(Fedi::localActor('alice'));
    $test->assertEquals($alice, $doc['id']);
    $test->assertEquals("{$alice}/inbox", $doc['inbox']);
    $test->assertEquals('https://1.1.1.1/ap/inbox', $doc['endpoints']['sharedInbox']);
    $test->assertStringContains('I am alice', $doc['summary']);
    $test->assertEquals(ass_url('user/noicon.png', 'https://1.1.1.1'), $doc['icon']['url']);
    $test->assertEquals($alice, Actor::webfinger('acct:alice@1.1.1.1')['links'][0]['href']);
    $test->assertNull(Actor::webfinger('acct:alice@other.example'));
    $test->assertNull(Actor::webfinger('acct:nobody@1.1.1.1'));
    // BANされたユーザーはアクターにならない
    $test->assertNull(Fedi::localActor('dave'));
  });

  $test->it('このサイトのアカウントを検索出来るはず（ブログのアカウントも）', function($test) use ($use, $alice): void {
    $use('A');
    // テストのサーバーはIPアドレスなので、「@user@host」はWebFingerで確認する
    $test->assertEquals($alice, Remote::webfinger('alice', '1.1.1.1'));
    $test->assertEquals($alice, Remote::resolve('@alice'));
    $blog = FEDIINFO['actor'];
    $test->assertEquals(Fedi::blogActorUrl(), Remote::webfinger($blog, '1.1.1.1'));
    $test->assertEquals(Fedi::blogActorUrl(), Remote::webfinger(strtoupper($blog), '1.1.1.1'));
    $test->assertEquals(Fedi::blogActorUrl(), Remote::resolve("@{$blog}"));
    $test->assertNull(Remote::webfinger('nobody', '1.1.1.1'));
    $test->assertNull(Remote::resolve('@dave'), 'BANされたユーザー');
  });

  $test->it('リモートのユーザーをフォローして承認されるはず', function($test) use ($use, $pump, $alice, $bob): void {
    $use('A');
    $test->assertTrue(Social::follow('alice', $bob)->isSuccess);
    $test->assertEquals('pending', Actor::following('alice')[$bob]['state']);
    $test->assertEquals(['Follow:202', 'Accept:202'], $pump());
    $use('A');
    $test->assertTrue(Actor::isFollowing('alice', $bob));
    // 承認されたら、相手の最近の投稿を次の配信の時に取得する
    $test->assertArrayHasKey($bob, Fedi::read(Fedi::path('backfill.json')));
    $use('B');
    $test->assertTrue(Actor::isFollowedBy('bob', $alice));
    $test->assertEquals('follow', Actor::notifications('bob')[0]['type']);
  });

  $test->it('送信ボックスからはそのアクターの公開・未収載の投稿だけを取り出すはず', function($test) use ($bob): void {
    $doc = ['id' => $bob, 'followers' => "{$bob}/followers"];
    $note = fn(string $n, array $to, array $cc = [], ?string $by = null) => ['type' => 'Create', 'object' => [
      'id' => "https://8.8.8.8/n/{$n}", 'type' => 'Note', 'attributedTo' => $by ?? $bob, 'to' => $to, 'cc' => $cc, 'content' => $n]];
    $items = [
      $note('public', [Fedi::PUBLIC]),
      $note('unlisted', ["{$bob}/followers"], [Fedi::PUBLIC]),
      $note('followers', ["{$bob}/followers"]),
      $note('direct', ['https://1.1.1.1/ap/users/alice']),
      $note('other', [Fedi::PUBLIC], [], 'https://8.8.8.8/ap/users/eve'),
      ['type' => 'Announce', 'object' => 'https://9.9.9.9/n/x'],
      ['type' => 'Create', 'object' => 'https://8.8.8.8/n/string'],
      ['type' => 'Create', 'object' => ['id' => 'https://9.9.9.9/n/spoof', 'type' => 'Note', 'attributedTo' => $bob, 'to' => [Fedi::PUBLIC]]],
    ];
    $got = array_map(fn($o) => $o['content'], Remote::outboxNotes($doc, $items));
    $test->assertEquals(['public', 'unlisted'], $got);
  });

  $test->it('リモートの画像は署名付きでこのサイト経由にするはず', function($test) use ($use): void {
    $use('A');
    $test->assertEquals('', Remote::imageUrl(''));
    $test->assertEquals(Fedi::base().'/static/a.png', Remote::imageUrl(Fedi::base().'/static/a.png'));
    $url = 'https://8.8.8.8/media/a.webp';
    $test->assertEquals('/microblog/media?u='.rawurlencode($url).'&s='.Remote::imageSig($url), Remote::imageUrl($url));
    $test->assertTrue(Remote::imageSig($url) !== Remote::imageSig($url.'?x'));
    // 形式は中身で判断し、SVG等は受け付けない
    $test->assertEquals('image/png', Remote::imageType("\x89PNG\r\n\x1a\n...."));
    $test->assertEquals('image/jpeg', Remote::imageType("\xff\xd8\xff\xe0...."));
    $test->assertEquals('image/gif', Remote::imageType('GIF89a....'));
    $test->assertEquals('image/webp', Remote::imageType('RIFF....WEBPVP8 '));
    $test->assertEquals('image/avif', Remote::imageType("\x00\x00\x00\x1cftypavif"));
    $test->assertNull(Remote::imageType('<svg xmlns="http://www.w3.org/2000/svg"><script>alert(1)</script></svg>'));
    $test->assertNull(Remote::imageType('<html>'));
  });

  $test->it('フォローしている人の投稿がホームに届くはず', function($test) use ($use, $pump): void {
    $use('B');
    $test->assertTrue(Social::post('bob', 'Hello #fedi')->isSuccess);
    $test->assertEquals(['Create:202'], $pump());
    $use('A');
    [$home] = Timeline::query('home', 'alice');
    $test->assertCount(1, $home);
    $test->assertStringContains('Hello', $home[0]['object']['content']);
    $test->assertCount(1, Timeline::query('federated', null)[0]);
    $test->assertCount(0, Timeline::query('local', null)[0]);
    $test->assertCount(1, Timeline::query('tag', null, ['tag' => 'fedi'])[0]);
  });

  $test->it('いいね・ブースト・返信が相手に届くはず', function($test) use ($use, $pump): void {
    $use('A');
    $id = Timeline::query('home', 'alice')[0][0]['object']['id'];
    $test->assertTrue(Social::like('alice', $id)->isSuccess);
    $test->assertTrue(Social::boost('alice', $id)->isSuccess);
    $test->assertTrue(Social::post('alice', '@bob@b.example いいね！', ['inReplyTo' => $id])->isSuccess);
    $pump();
    $use('B');
    $note = Notes::get(Fedi::localNoteId($id)[1]);
    $test->assertCount(1, $note['likes']);
    $test->assertCount(1, $note['boosts']);
    $test->assertCount(1, $note['replies']);
    $types = array_column(Actor::notifications('bob'), 'type');
    foreach (['like', 'boost', 'reply'] as $t) $test->assertTrue(in_array($t, $types, true), "通知「{$t}」が無い");
    // 返信は返信先のスレッドに出る
    $test->assertCount(1, Timeline::replies($id));
  });

  $test->it('取り消しも届くはず', function($test) use ($use, $pump): void {
    $use('A');
    $id = Timeline::query('home', 'alice', ['limit' => 50])[0][count(Timeline::query('home', 'alice', ['limit' => 50])[0]) - 1]['object']['id'];
    $test->assertTrue(Social::unlike('alice', $id)->isSuccess);
    $test->assertTrue(Social::unboost('alice', $id)->isSuccess);
    $pump();
    $use('B');
    $note = Notes::get(Fedi::localNoteId($id)[1]);
    $test->assertCount(0, $note['likes']);
    $test->assertCount(0, $note['boosts']);
  });

  $test->it('承認制のアカウントはリクエストを承認するまでフォローされないはず', function($test) use ($use, $pump, $alice, $carol): void {
    $use('A');
    Actor::saveSettings('alice', ['locked' => true]);
    $test->assertTrue(Social::follow('carol', $alice)->isSuccess);
    $test->assertEquals('pending', Actor::following('carol')[$alice]['state']);
    $test->assertTrue(isset(Actor::requests('alice')[$carol]));
    $test->assertTrue(Social::answerRequest('alice', $carol, true)->isSuccess);
    $test->assertTrue(Actor::isFollowing('carol', $alice));
    $test->assertTrue(Actor::isFollowedBy('alice', $carol));
    Actor::saveSettings('alice', ['locked' => false]);
  });

  $test->it('フォロワー限定とダイレクトは関係ある人だけ見えるはず', function($test) use ($use, $pump): void {
    $use('A');
    $test->assertTrue(Social::post('alice', 'followers only', ['visibility' => 'followers'])->isSuccess);
    $test->assertTrue(Social::post('alice', '@bob@b.example secret', ['visibility' => 'direct'])->isSuccess);
    $pump();
    $use('A');
    $texts = fn($items) => array_map(fn($i) => Html::text($i['object']['content']), $items);
    $carolHome = $texts(Timeline::query('home', 'carol')[0]);
    $test->assertTrue(in_array('followers only', $carolHome, true), 'フォロワーに見えない');
    $test->assertFalse(in_array('@bob secret', $carolHome, true), '関係無い人にダイレクトが見える');
    $test->assertFalse(in_array('followers only', $texts(Timeline::query('local', null)[0]), true));
    $test->assertFalse(in_array('followers only', $texts(Timeline::query('user', null, ['user' => 'alice'])[0]), true));

    $use('B');
    $bobHome = $texts(Timeline::query('home', 'bob')[0]);
    $test->assertTrue(in_array('@bob secret', $bobHome, true), 'ダイレクトが届かない');
    // bobはaliceのフォロワーではない
    $test->assertFalse(in_array('followers only', $bobHome, true));
    $test->assertTrue(in_array('mention', array_column(Actor::notifications('bob'), 'type'), true));
  });

  $test->it('編集と削除が届くはず', function($test) use ($use, $pump): void {
    $use('B');
    $own = Timeline::query('user', 'bob', ['user' => 'bob'])[0][0]['object']['id'];
    $id = Fedi::localNoteId($own)[1];
    $test->assertTrue(Social::edit('bob', $id, 'Edited #changed')->isSuccess);
    $pump();
    $use('A');
    $test->assertEquals('Edited #changed', Html::text(Remote::stored($own)['content']));
    $test->assertCount(1, Timeline::query('tag', null, ['tag' => 'changed'])[0]);
    $test->assertCount(0, Timeline::query('tag', null, ['tag' => 'fedi'])[0]);

    $use('B');
    $test->assertTrue(Social::delete('bob', $id)->isSuccess);
    $pump();
    $use('A');
    $test->assertNull(Remote::stored($own));
    $test->assertFalse(in_array($own, array_map(fn($i) => $i['object']['id'], Timeline::query('federated', null)[0]), true));
  });

  $test->it('他人の投稿は編集・削除出来ないはず', function($test) use ($use): void {
    $use('A');
    $mine = Timeline::query('user', 'alice', ['user' => 'alice'])[0][0]['object']['id'];
    $id = Fedi::localNoteId($mine)[1];
    $test->assertFalse(Social::edit('carol', $id, 'x')->isSuccess);
    $test->assertFalse(Social::delete('carol', $id)->isSuccess);
  });

  $test->it('偽装したアクティビティは受け付けないはず', function($test) use ($use, $alice, $bob): void {
    $use('A');
    // ローカルのアクターを名乗るリモートのアクティビティ
    $test->assertEquals(403, Inbox::handle(['type' => 'Like', 'actor' => $alice, 'object' => 'x'])[0]);
    // 他人の投稿として作られたCreate
    $test->assertEquals(403, Inbox::handle(['type' => 'Create', 'actor' => $bob,
      'object' => ['type' => 'Note', 'id' => 'https://8.8.8.8/n/1', 'attributedTo' => 'https://8.8.8.8/ap/users/eve', 'to' => [Fedi::PUBLIC]]])[0]);
    // 違うサーバーのIDのNote
    $test->assertEquals(403, Inbox::handle(['type' => 'Create', 'actor' => $bob,
      'object' => ['type' => 'Note', 'id' => 'https://9.9.9.9/n/1', 'attributedTo' => $bob, 'to' => [Fedi::PUBLIC]]])[0]);
    // 他人のフォローの取り消し
    $test->assertEquals(202, Inbox::handle(['type' => 'Undo', 'actor' => $bob,
      'object' => ['type' => 'Follow', 'actor' => 'https://8.8.8.8/ap/users/eve', 'object' => $alice]])[0]);
    // 誰にも関係の無い投稿は保存しない
    Inbox::handle(['type' => 'Create', 'actor' => 'https://8.8.8.8/ap/users/stranger',
      'object' => ['type' => 'Note', 'id' => 'https://8.8.8.8/n/spam', 'attributedTo' => 'https://8.8.8.8/ap/users/stranger', 'to' => [Fedi::PUBLIC], 'content' => 'spam']]);
    $test->assertNull(Remote::stored('https://8.8.8.8/n/spam'));
  });

  $test->it('ブロックするとフォロー関係が無くなり、投稿が見えなくなるはず', function($test) use ($use, $pump, $alice, $bob): void {
    $use('B');
    $test->assertTrue(Social::block('bob', $alice)->isSuccess);
    $pump();
    $use('A');
    $test->assertFalse(Actor::isFollowing('alice', $bob));
    $use('B');
    $test->assertFalse(Actor::isFollowedBy('bob', $alice));
    $test->assertTrue(Actor::isBlocked('bob', $alice));
    // ブロックしている人からのフォローは拒否する
    $use('A');
    Social::follow('alice', $bob);
    $pump();
    $use('A');
    $test->assertFalse(isset(Actor::following('alice')[$bob]));
    $use('B');
    $test->assertTrue(Social::unblock('bob', $alice)->isSuccess);
    $pump();
  });

  $test->it('サイト全体でドメインをブロック出来るはず', function($test) use ($use, $bob): void {
    $use('A');
    $test->assertFalse(Social::blockInstance('1.1.1.1')->isSuccess);
    $test->assertTrue(Social::blockInstance('evil.example')->isSuccess);
    $test->assertTrue(Actor::isDomainBlocked('https://sub.evil.example/u/x'));
    $test->assertFalse(Actor::isDomainBlocked('https://notevil.example/u/x'));
    $test->assertEquals(403, Inbox::handle(['type' => 'Follow', 'actor' => 'https://evil.example/u/x', 'object' => 'x'])[0]);
    // 待ち行列にも入れない
    Delivery::enqueue('alice', ['type' => 'Note', 'id' => 'x'], ['https://evil.example/inbox']);
    $test->assertEquals(0, Delivery::pending());
    $test->assertTrue(Social::blockInstance('evil.example', false)->isSuccess);
    $test->assertFalse(Actor::isDomainBlocked('https://evil.example/u/x'));
  });

  $test->it('通報を記録し、相手のサーバーにも送るはず', function($test) use ($use, $pump, $bob): void {
    $use('A');
    $test->assertTrue(Social::report('alice', $bob, [], '迷惑です')->isSuccess);
    $test->assertEquals('迷惑です', Social::reports()[0]['content']);
    $pump();
    $use('B');
    $test->assertTrue((bool)Social::reports()[0]['remote']);
    $test->assertEquals('迷惑です', Social::reports()[0]['content']);
  });

  $test->it('アカウントの削除で全部から消えるはず', function($test) use ($use, $pump, $bob): void {
    $use('A');
    Social::follow('alice', $bob);
    $pump();
    $use('A');
    $test->assertTrue(Actor::isFollowing('alice', $bob));
    Inbox::handle(['type' => 'Delete', 'actor' => $bob, 'object' => $bob]);
    $test->assertFalse(isset(Actor::following('alice')[$bob]));
    $test->assertNull(Remote::cachedActor($bob));
  });

  $test->it('待ち行列は失敗したら間隔を空けて再試行するはず', function($test) use ($use): void {
    $use('A');
    foreach (glob(Fedi::path('queue/').'*.json') ?: [] as $f) unlink($f);
    $failing = new class extends Delivery {
      public static int $calls = 0;
      public static bool $ok = false;
      protected static function send(string $from, string $inbox, array $activity): bool {
        self::$calls++;
        return self::$ok;
      }
      protected static function runBackfill(int $budget): int {
        return 0;
      }
    };
    $failing::enqueue('alice', ['type' => 'Like', 'id' => 'x'], ['https://9.9.9.9/inbox']);
    $res = $failing::run();
    $test->assertEquals(['sent' => 0, 'failed' => 1, 'dropped' => 0, 'backfilled' => 0], $res->data);
    // 次の時刻までは送らない
    $failing::run();
    $test->assertEquals(1, $failing::$calls);
    $job = glob(Fedi::path('queue/').'*.json')[0];
    $data = Fedi::read($job);
    $data['next'] = time() - 1;
    Fedi::write($job, $data);
    $failing::$ok = true;
    $test->assertEquals(['sent' => 1, 'failed' => 0, 'dropped' => 0, 'backfilled' => 0], $failing::run()->data);
    $test->assertEquals(0, Delivery::pending());
  });

  $test->it('古いリモートの投稿を消すはず', function($test) use ($use): void {
    $use('A');
    $old = ['id' => 'https://8.8.8.8/n/old', 'type' => 'Note', 'attributedTo' => 'https://8.8.8.8/ap/users/x',
            'to' => [Fedi::PUBLIC], 'content' => 'old', 'published' => Fedi::now(time() - 200 * 86400)];
    Remote::store($old);
    Timeline::add($old);
    $res = Timeline::cleanup(90);
    $test->assertTrue($res->data['removed'] >= 1);
    $test->assertNull(Remote::stored($old['id']));
    // ローカルの投稿は消さない
    $test->assertTrue(count(Timeline::query('user', 'alice', ['user' => 'alice'])[0]) > 0);
  });

  $test->it('GETの署名を検証出来るはず', function($test) use ($use, $alice): void {
    $use('A');
    $key = Actor::privateKey('alice');
    $test->assertNotNull($key);
    $ap = new class extends Activitypub {
      public array $docs = [];
      public function fetchRemoteJson(string $url): ?array { return $this->docs[$url] ?? null; }
    };
    $ap->docs[$alice] = Actor::document(Fedi::localActor('alice'));
    $headers = [];
    foreach ($ap->signRequest('https://8.8.8.8/ap/users/bob/notes/x', '', $key, 'get', Actor::keyId('alice')) as $line) {
      [$k, $v] = explode(': ', $line, 2);
      $headers[$k] = $v;
    }
    $server = $_SERVER;
    try {
      $_SERVER['REQUEST_METHOD'] = 'GET';
      $_SERVER['REQUEST_URI'] = '/ap/users/bob/notes/x';
      $_SERVER['HTTP_HOST'] = $headers['Host'];
      $_SERVER['HTTP_DATE'] = $headers['Date'];
      $_SERVER['HTTP_SIGNATURE'] = $headers['Signature'];
      $test->assertEquals($alice, $ap->signer());
      $_SERVER['REQUEST_URI'] = '/ap/users/bob/notes/y';
      $test->assertNull($ap->signer());
    } finally {
      $_SERVER = $server;
    }
  });
});

// 後片付け
Fedi::$baseUrl = Fedi::$dataDir = Fedi::$userDir = null;
$rm = function(string $dir) use (&$rm): void {
  foreach (scandir($dir) ?: [] as $f) {
    if ($f === '.' || $f === '..') continue;
    is_dir("{$dir}/{$f}") ? $rm("{$dir}/{$f}") : @unlink("{$dir}/{$f}");
  }
  @rmdir($dir);
};
if (is_dir($tmp)) $rm($tmp);

$test->printSummary();