fix: bounded usage scan and count-only unreadable posts in global edits (L1, L4)
GlobalUsages runs one query per request (ID, status, type – no content), checks read_post/edit_post in chunks of 200 with a primed and released post cache, lists at most 50 readable posts and refuses a confirmed global edit above 2000 live references (unsupported, edit in the Divi builder). Posts the caller may not read appear only as hidden_count / blocked_hidden_count; blocked_ids names readable posts only. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Claude Opus 5.5
@@ -6,60 +6,133 @@ namespace LIT\MCP\Tests\Unit\Integrations\Divi\Library;
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use Brain\Monkey\Functions;
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use LIT\MCP\Integrations\Divi\Library\GlobalUsages;
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use LIT\MCP\Tests\Support\LibraryFixtures;
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use LIT\MCP\Tests\Unit\TestCase;
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use Mockery;
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use WP_Post;
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final class GlobalUsagesTest extends TestCase
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{
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public function testFindsInstancesLikeDiviAndHidesUnreadableTitles(): void
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/** Audit L1: one query, ID, status and type only – never the content, no COUNT, no second scan. */
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public function testFindsInstancesLikeDiviWithOneQueryWithoutContent(): void
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{
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$db = Mockery::mock(\wpdb::class)->makePartial();
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$queries = [];
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$db->allows('get_var')->andReturnUsing(static function (string $sql) use (&$queries): string {
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$queries[] = $sql;
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return '3';
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});
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$db->allows('get_results')->andReturnUsing(static function (string $sql) use (&$queries): array {
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$queries[] = $sql;
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return [
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['ID' => '1053', 'post_title' => 'Globale Instanzen', 'post_status' => 'draft', 'post_type' => 'page'],
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['ID' => '1061', 'post_title' => 'Geheim', 'post_status' => 'private', 'post_type' => 'et_header_layout'],
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['ID' => '1053', 'post_status' => 'draft', 'post_type' => 'page'],
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['ID' => '1061', 'post_status' => 'private', 'post_type' => 'et_header_layout'],
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];
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});
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Functions\when('current_user_can')->alias(static fn (string $cap, int $id): bool => $id !== 1061);
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$usages = (new GlobalUsages($db))->of(1058);
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$rows = (new GlobalUsages($db))->rows(1058);
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self::assertSame(3, $usages['count']);
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self::assertSame(
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[
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['post_id' => 1053, 'title' => 'Globale Instanzen', 'status' => 'draft', 'type' => 'page'],
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['post_id' => 1061, 'title' => '(nicht lesbar)', 'status' => 'private', 'type' => 'et_header_layout'],
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['id' => 1053, 'status' => 'draft', 'type' => 'page'],
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['id' => 1061, 'status' => 'private', 'type' => 'et_header_layout'],
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],
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$usages['items']
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$rows
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);
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self::assertCount(1, $queries);
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self::assertStringStartsWith('SELECT ID, post_status, post_type FROM', $queries[0]);
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self::assertStringContainsString("LIKE '%\"globalModule\":\"1058\"%'", $queries[0]);
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self::assertStringContainsString("post_status NOT IN ('trash', 'auto-draft', 'inherit')", $queries[1]);
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self::assertStringContainsString('LIMIT 50', $queries[1]);
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}
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/** Ruling P8a: every live (published, private, scheduled) post showing the entry, beyond the listing limit. */
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public function testLiveIdsAreUnlimited(): void
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{
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$db = Mockery::mock(\wpdb::class)->makePartial();
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$queries = [];
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$db->allows('get_col')->andReturnUsing(static function (string $sql) use (&$queries): array {
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$queries[] = $sql;
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return ['1053', '1080'];
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});
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self::assertSame([1053, 1080], (new GlobalUsages($db))->liveIds(1059));
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self::assertStringContainsString("LIKE '%\"globalModule\":\"1059\"%'", $queries[0]);
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self::assertStringContainsString("post_status IN ('publish', 'private', 'future')", $queries[0]);
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self::assertStringContainsString("post_status NOT IN ('trash', 'auto-draft', 'inherit')", $queries[0]);
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self::assertStringContainsString("post_type <> 'revision'", $queries[0]);
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self::assertStringNotContainsString('LIMIT', $queries[0]);
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self::assertStringNotContainsString('post_content,', $queries[0]);
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}
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/** Audit L4: readable posts with title, unreadable ones only counted. */
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public function testListsReadablePostsAndCountsTheOthers(): void
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{
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$usages = LibraryFixtures::usages([
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['id' => 1053, 'status' => 'draft', 'type' => 'page'],
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['id' => 1061, 'status' => 'private', 'type' => 'et_header_layout'],
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]);
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Functions\when('get_post')->alias(
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static fn (int $id): WP_Post => new WP_Post(['ID' => $id, 'post_title' => 'Titel ' . $id])
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);
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Functions\when('current_user_can')->alias(
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static fn (string $cap, int $id): bool => $id !== 1061
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);
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$report = $usages->report(1058);
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self::assertSame(2, $report->count);
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self::assertSame(
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[['post_id' => 1053, 'title' => 'Titel 1053', 'status' => 'draft', 'type' => 'page']],
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$report->items
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);
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self::assertSame(1, $report->hidden);
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self::assertSame(1, $report->live);
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self::assertSame([], $report->blocked);
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self::assertSame(1, $report->blockedHidden);
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self::assertSame(
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['affected' => $report->items, 'affected_count' => 2, 'hidden_count' => 1, 'blocked_hidden_count' => 1],
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$report->details()
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);
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}
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/** Audit L1: rights are checked in chunks, each with its own primed cache that is dropped afterwards. */
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public function testChecksLargeSetsInChunksAndReleasesTheCache(): void
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{
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$usages = LibraryFixtures::usages(LibraryFixtures::rows(range(1, 450)));
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$primed = [];
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Functions\when('_prime_post_caches')->alias(static function (array $ids) use (&$primed): void {
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$primed[] = count($ids);
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});
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$deleted = 0;
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Functions\when('wp_cache_delete')->alias(static function () use (&$deleted): bool {
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++$deleted;
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return true;
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});
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Functions\when('get_post')->justReturn(null);
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Functions\when('current_user_can')->alias(static fn (string $cap, int $id): bool => $id % 100 !== 0);
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$report = $usages->report(1058);
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self::assertSame([GlobalUsages::CHUNK, GlobalUsages::CHUNK, 50], $primed);
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self::assertSame(450, $deleted);
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self::assertSame(450, $report->count);
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self::assertCount(GlobalUsages::LIMIT, $report->items);
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self::assertSame(4, $report->hidden);
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self::assertSame(4, $report->blockedHidden);
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self::assertTrue($report->blocks());
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}
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/** Audit L1: above the hard cap nothing is checked for edit_post, and the report blocks. */
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public function testAboveTheHardCapNoPostIsCheckedForEditing(): void
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{
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$usages = LibraryFixtures::usages(LibraryFixtures::rows(range(1, GlobalUsages::HARD_CAP + 1)));
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Functions\when('get_post')->justReturn(null);
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$asked = [];
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Functions\when('current_user_can')->alias(static function (string $cap) use (&$asked): bool {
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$asked[$cap] = ($asked[$cap] ?? 0) + 1;
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return true;
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});
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$report = $usages->report(1058);
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self::assertTrue($report->tooMany);
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self::assertTrue($report->blocks());
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self::assertArrayNotHasKey('edit_post', $asked);
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self::assertSame(GlobalUsages::CHECK_CAP, $asked['read_post']);
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}
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public function testAListingSkipsTheEditChecks(): void
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{
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$usages = LibraryFixtures::usages(LibraryFixtures::rows([1053]));
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Functions\when('get_post')->justReturn(null);
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Functions\when('current_user_can')->alias(static fn (string $cap): bool => $cap !== 'edit_post');
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$report = $usages->report(1058, false);
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self::assertFalse($report->blocks());
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self::assertSame(['affected', 'affected_count'], array_keys($report->listing()));
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}
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}
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