janniclas.loosenandClaude Opus 5.5
06f13799de
One PostIdParser for {{link:}} and select_post; post_link_url_<type> needs a
living, readable, non-attachment target of exactly that type.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
523 lines
25 KiB
PHP
523 lines
25 KiB
PHP
<?php
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declare(strict_types=1);
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namespace LIT\MCP\Tests\Unit\Integrations\Divi\Compose;
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use InvalidArgumentException;
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use LIT\MCP\Integrations\Divi\Compose\VariableRef;
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use LIT\MCP\Tests\Support\ComposeFixture;
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use LIT\MCP\Tests\Support\DiviFixtures;
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use PHPUnit\Framework\TestCase;
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/** Ruling S1/S2/S12/S21/S22: every $variable(…)$ value is parsed, strictly checked, cleaned and re-serialized. */
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final class VariableRefTest extends TestCase
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{
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/** @param array<string, array<string, string>>|null $dynamicContent */
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private static function ref(?array $dynamicContent = null): VariableRef
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{
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return new VariableRef(DiviFixtures::designSystem(), $dynamicContent);
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}
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private static function content(string $name, string $settings): string
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{
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return '$variable({"type":"content","value":{"name":"' . $name . '","settings":' . $settings . '}})$';
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}
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/** A JSON "\uXXXX" escape, built from bytes so no tool turns it into the character itself. */
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private static function escape(string $hex): string
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{
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return chr(92) . 'u' . $hex;
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}
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/** @return array<string, array{string, string}> */
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public static function valid(): array
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{
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return [
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'reordered keys' => [
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'$variable({"value":{"settings":{},"name":"gcid-a1b2"},"type":"color"})$',
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'$variable({"type":"color","value":{"name":"gcid-a1b2","settings":{}}})$',
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],
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'empty list settings, no settings' => [
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'$variable({"type":"color","value":{"name":"gcid-primary-color","settings":[]}})$',
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'$variable({"type":"color","value":{"name":"gcid-primary-color","settings":{}}})$',
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],
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'missing settings' => [
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'$variable({"type":"content","value":{"name":"gvid-r1"}})$',
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'$variable({"type":"content","value":{"name":"gvid-r1","settings":{}}})$',
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],
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'color settings numeric' => [
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'$variable({"type":"color","value":{"name":"gcid-a1b2","settings":{"opacity":"50","hue":-10,"lightness":1.5}}})$',
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'$variable({"type":"color","value":{"name":"gcid-a1b2","settings":{"opacity":"50","hue":-10,"lightness":1.5}}})$',
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],
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'post date with format and html before' => [
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self::content('post_date', '{"before":"<b>Am</b> ","after":"","date_format":"custom","custom_date_format":"d.m.Y"}'),
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self::content('post_date', '{"before":"<b>Am</b> ","after":"","date_format":"custom","custom_date_format":"d.m.Y"}'),
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],
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'custom meta' => [
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self::content('custom_meta_telefon-mobil', '{"before":"","after":""}'),
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self::content('custom_meta_telefon-mobil', '{"before":"","after":""}'),
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],
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'theme font' => [
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self::content('--et_global_body_font', '{}'),
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self::content('--et_global_body_font', '{}'),
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],
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];
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}
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/** @dataProvider valid */
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public function testReserializesValidReferences(string $input, string $expected): void
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{
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self::assertSame($expected, self::ref()->canonical($input, ComposeFixture::sanitizer()));
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}
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/**
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* Ruling S21: string settings are cleaned and the cleaned value is re-serialized.
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*
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* @return array<string, array{string, string}>
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*/
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public static function cleaned(): array
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{
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$script = self::escape('003c') . 'script' . self::escape('003e') . 'alert(1)' . self::escape('003c') . '/script'
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. self::escape('003e');
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return [
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'script in before' => [
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self::content('post_title', '{"before":"<b>Hi</b><script>alert(1)</script>","after":""}'),
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self::content('post_title', '{"before":"<b>Hi</b>","after":""}'),
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],
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'script in after' => [
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self::content('custom_meta_telefon', '{"before":"","after":"<script>x()</script>!"}'),
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self::content('custom_meta_telefon', '{"before":"","after":"!"}'),
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],
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'escaped script in before' => [
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self::content('post_title', '{"before":"' . $script . 'Hallo","after":""}'),
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self::content('post_title', '{"before":"Hallo","after":""}'),
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],
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// S32a: controls go before text(), so "<" + VT/FF is a tag text() removes.
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'VT-split tag in date format' => [
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self::content('post_date', '{"custom_date_format":"<' . self::escape('000b') . 'img src=x onerror=alert(1)>d.m"}'),
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self::content('post_date', '{"custom_date_format":"d.m"}'),
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],
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'FF-split script in date format' => [
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self::content('post_date', '{"custom_date_format":"<' . self::escape('000c') . 'script>alert(1)</script>d.m"}'),
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self::content('post_date', '{"custom_date_format":"d.m"}'),
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],
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'tags in date format' => [
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self::content('post_date', '{"custom_date_format":"<b>d</b>.m"}'),
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self::content('post_date', '{"custom_date_format":"d.m"}'),
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],
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];
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}
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/** @dataProvider cleaned */
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public function testCleansStringSettings(string $input, string $expected): void
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{
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$canonical = self::ref()->canonical($input, ComposeFixture::sanitizer());
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self::assertSame($expected, $canonical);
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self::assertStringNotContainsString('<script', $canonical);
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}
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/**
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* Hand-crafted attacks (preflight §4 "Malicious $variable tests").
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*
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* @return array<string, array{string, string}> Value => part of the German error.
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*/
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public static function malicious(): array
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{
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return DiviFixtures::maliciousRefs();
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}
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/** @dataProvider malicious */
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public function testRejectsMaliciousReferences(string $input, string $message): void
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{
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$this->expectException(InvalidArgumentException::class);
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$this->expectExceptionMessage($message);
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self::ref()->canonical($input, ComposeFixture::sanitizer());
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}
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/**
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* "$" without /D also matches before a trailing newline: the whole-reference pattern, a meta
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* key name and a color setting number must each end with their last character.
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*/
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public function testATrailingNewlineIsNeverAnAnchorMatch(): void
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{
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$color = VariableRef::serialize('color', 'gcid-a1b2', []);
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$rejects = [
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'whole reference' => [$color . "\n", 'Verweise nur allein im Wert'],
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'meta key name' => [
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VariableRef::serialize('content', "custom_meta_telefon\n", ['before' => '', 'after' => '']),
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'Unbekannter Name',
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],
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'color number' => [VariableRef::serialize('color', 'gcid-a1b2', ['hue' => "5\n"]), 'nur Zahlen'],
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];
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foreach ($rejects as $label => [$input, $message]) {
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try {
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self::ref()->canonical($input, ComposeFixture::sanitizer());
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self::fail($label . ': accepted');
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} catch (InvalidArgumentException $e) {
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self::assertStringContainsString($message, $e->getMessage(), $label);
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}
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}
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self::assertNull(VariableRef::typeOf($color . "\n"));
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}
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/** I-1: the escape really is in the input, and nothing with ")$" inside comes out. */
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public function testEscapedEndMarkerIsBytesNotTheCharacter(): void
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{
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$input = self::content('post_title', '{"before":"x' . self::escape('0029') . '$","after":""}');
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self::assertStringNotContainsString(')$ ', $input);
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self::assertSame(1, substr_count($input, ')$'));
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self::assertStringContainsString("\\u0029", $input);
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$this->expectException(InvalidArgumentException::class);
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self::ref()->canonical($input, ComposeFixture::sanitizer());
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}
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public function testUrlFieldsTakeContentReferencesWithoutBeforeOrAfter(): void
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{
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$ref = self::ref();
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$link = '$variable({"type":"content","value":{"name":"post_link_url","settings":{}}})$';
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self::assertSame($link, $ref->canonical($link, ComposeFixture::sanitizer(), true));
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foreach (
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[
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self::content('custom_meta_ziel', '{"before":"javascript:alert(1)//","after":""}'),
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'$variable({"type":"color","value":{"name":"gcid-a1b2","settings":{}}})$',
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] as $value
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) {
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try {
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$ref->canonical($value, ComposeFixture::sanitizer(), true);
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self::fail('Accepted in a URL field: ' . $value);
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} catch (InvalidArgumentException $e) {
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self::assertStringContainsString('URL', $e->getMessage());
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}
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}
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}
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/** Ruling S22: an injected allow map (Divi's live registry in Task 5) decides names and setting types. */
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public function testInjectedDynamicContentMap(): void
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{
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$ref = self::ref([
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'site_title' => ['before' => 'text', 'after' => 'richtext'],
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'post_date' => ['date_format' => 'select', 'offset' => 'number'],
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'loop_post_title' => [],
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'custom_meta_preis' => ['before' => 'text', 'enable_html' => 'yes_no_button'],
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]);
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$sanitizer = ComposeFixture::sanitizer();
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self::assertSame(
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self::content('site_title', '{"before":"Site","after":"<em>!</em>"}'),
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$ref->canonical(self::content('site_title', '{"before":"<b>Site</b>","after":"<em>!</em>"}'), $sanitizer)
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);
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self::assertSame(
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self::content('post_date', '{"date_format":"d.m.Y","offset":3}'),
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$ref->canonical(self::content('post_date', '{"date_format":" d.m.Y","offset":3}'), $sanitizer)
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);
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self::assertSame(self::content('loop_post_title', '{}'), $ref->canonical(self::content('loop_post_title', '{}'), $sanitizer));
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// Names outside the map: custom_meta_ keeps its rule, the rest is unknown.
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self::assertSame(
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self::content('custom_meta_telefon', '{"before":"<b>T</b>"}'),
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$ref->canonical(self::content('custom_meta_telefon', '{"before":"<b>T</b>"}'), $sanitizer)
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);
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$rejected = [
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'post_title' => self::content('post_title', '{}'),
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'enable_html' => self::content('custom_meta_preis', '{"enable_html":"on"}'),
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'offset' => self::content('post_date', '{"offset":[1]}'),
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];
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foreach ($rejected as $fragment => $value) {
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try {
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$ref->canonical($value, $sanitizer);
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self::fail('Accepted: ' . $value);
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} catch (InvalidArgumentException $e) {
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self::assertStringContainsString($fragment, $e->getMessage());
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}
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}
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}
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/** S28: the split-marker rows really carry no marker before sanitizing. */
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public function testSplitMarkerRowsHaveNoRawMarker(): void
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{
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$rows = self::malicious();
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foreach (['tag-split marker in before', 'NUL-split marker in after', 'octet-split marker in date format'] as $row) {
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$payload = substr($rows[$row][0], strlen('$variable('));
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self::assertStringNotContainsString('$variable(', $payload, $row);
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}
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self::assertStringContainsString(chr(92) . 'u0000(y', $rows['NUL-split marker in after'][0]);
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}
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/** Ruling S29: custom_meta_ names and meta-key settings obey META_KEY, map or not. */
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public function testMetaKeysObeyTheRuleEvenFromTheMap(): void
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{
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$ref = self::ref([
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'post_meta_key' => ['before' => 'text', 'meta_key' => 'text', 'select_meta_key' => 'select'],
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'custom_meta__edit_lock' => ['before' => 'text'],
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'loop_post_meta_key' => ['loop_meta_key' => 'text'],
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]);
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$sanitizer = ComposeFixture::sanitizer();
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self::assertSame(
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self::content('post_meta_key', '{"meta_key":"telefon","select_meta_key":"custom_meta_fax"}'),
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$ref->canonical(self::content('post_meta_key', '{"meta_key":"telefon","select_meta_key":"custom_meta_fax"}'), $sanitizer)
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);
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self::assertSame(
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self::content('post_meta_key', '{"select_meta_key":""}'),
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$ref->canonical(self::content('post_meta_key', '{"select_meta_key":""}'), $sanitizer)
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);
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$rejected = [
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self::content('post_meta_key', '{"meta_key":"_wp_page_template"}') => 'meta_key',
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self::content('post_meta_key', '{"select_meta_key":"custom_meta__edit_lock"}') => 'select_meta_key',
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self::content('post_meta_key', '{"meta_key":"a b"}') => 'meta_key',
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self::content('loop_post_meta_key', '{"loop_meta_key":"_secret"}') => 'loop_meta_key',
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self::content('custom_meta__edit_lock', '{}') => 'custom_meta__edit_lock',
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];
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foreach ($rejected as $value => $fragment) {
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try {
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$ref->canonical($value, $sanitizer);
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self::fail('Accepted: ' . $value);
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} catch (InvalidArgumentException $e) {
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self::assertStringContainsString($fragment, $e->getMessage());
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}
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}
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}
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/** @return array<string, array{string}> */
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public static function derivedMetaKeyBypasses(): array
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{
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return [
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'doubled prefix in the name' => [self::content('custom_meta_custom_meta__edit_lock', '{}')],
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'tripled prefix in the name' => [self::content('custom_meta_custom_meta_custom_meta__edit_lock', '{}')],
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'prefix rebuilt by the strip' => [self::content('custom_meta_custom_mcustom_meta_eta_telefon', '{}')],
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'loop prefix in the name' => [self::content('custom_meta_loop_post_meta_key__edit_lock', '{}')],
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'doubled prefix in select_meta_key' => [
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self::content('post_meta_key', '{"select_meta_key":"custom_meta_custom_meta__wp_page_template"}'),
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],
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'doubled prefix in meta_key' => [self::content('post_meta_key', '{"meta_key":"custom_meta_custom_meta__x"}')],
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'loop post prefix' => [self::content('loop_post_meta_key', '{"select_loop_meta_key":"loop_post_meta_key__edit_lock"}')],
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'loop user prefix' => [self::content('loop_post_meta_key', '{"select_loop_meta_key":"loop_user_meta_key__session_tokens"}')],
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'loop term prefix' => [self::content('loop_post_meta_key', '{"select_loop_meta_key":"loop_term_meta_key__secret"}')],
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'doubled loop prefix' => [
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self::content('loop_post_meta_key', '{"select_loop_meta_key":"loop_post_meta_key_loop_post_meta_key__edit_lock"}'),
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],
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'mixed loop and meta prefix' => [
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self::content('loop_post_meta_key', '{"select_loop_meta_key":"loop_post_meta_key_custom_meta__edit_lock"}'),
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],
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'mixed meta and loop prefix' => [
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self::content('post_meta_key', '{"select_meta_key":"custom_meta_loop_term_meta_key__secret"}'),
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],
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'two loop prefixes' => [
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self::content('loop_post_meta_key', '{"select_loop_meta_key":"loop_user_meta_key_loop_post_meta_key_telefon"}'),
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],
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];
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}
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/**
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* Ruling S30: Divi derives the meta key with str_replace of every prefix occurrence
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* (DynamicContentOptionPostMetaKey.php:232,275; DynamicContentOptionLoopPostMetaKey.php:366-373).
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*
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* @dataProvider derivedMetaKeyBypasses
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*/
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public function testMetaKeysAreCheckedAfterDivisDerivation(string $value): void
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{
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$ref = self::ref([
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'post_meta_key' => ['meta_key' => 'text', 'select_meta_key' => 'select'],
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'loop_post_meta_key' => ['select_loop_meta_key' => 'select', 'loop_meta_key' => 'text'],
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]);
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$this->expectException(InvalidArgumentException::class);
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$ref->canonical($value, ComposeFixture::sanitizer());
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}
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public function testDerivedMetaKeysThatAreFineStayAccepted(): void
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{
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$ref = self::ref([
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'post_meta_key' => ['meta_key' => 'text', 'select_meta_key' => 'select'],
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'loop_post_meta_key' => ['select_loop_meta_key' => 'select', 'loop_meta_key' => 'text'],
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]);
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$sanitizer = ComposeFixture::sanitizer();
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foreach ([
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self::content('custom_meta_telefon', '{}'),
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self::content('post_meta_key', '{"select_meta_key":"custom_meta_fax"}'),
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self::content('loop_post_meta_key', '{"select_loop_meta_key":"loop_post_meta_key_telefon"}'),
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self::content('loop_post_meta_key', '{"select_loop_meta_key":"loop_user_meta_key_first_name"}'),
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self::content('loop_post_meta_key', '{"select_loop_meta_key":"loop_term_meta_key_farbe"}'),
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self::content(
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'loop_post_meta_key',
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'{"select_loop_meta_key":"loop_post_meta_key_manual_custom_field_value","loop_meta_key":"telefon"}'
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),
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] as $value) {
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self::assertSame($value, $ref->canonical($value, $sanitizer));
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}
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}
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/** @return array<string, array{array<array-key, mixed>}> */
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public static function malformedMaps(): array
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{
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return [
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'setting type is an array' => [['post_title' => ['before' => ['type' => 'text']]]],
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'settings not an array' => [['post_title' => 'text']],
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'numeric setting key' => [['post_title' => ['text']]],
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'numeric name' => [[['before' => 'text']]],
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];
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}
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/**
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* Minor-2: a malformed map fails early and clearly.
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*
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* @dataProvider malformedMaps
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* @param array<array-key, mixed> $map
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*/
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public function testRejectsMalformedMaps(array $map): void
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{
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$this->expectException(InvalidArgumentException::class);
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self::ref($map); // @phpstan-ignore-line
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}
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/** Ruling S33c: the type of a whole reference, read from its payload (not from a string prefix). */
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public function testTypeOfAReference(): void
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{
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self::assertSame('color', VariableRef::typeOf('$variable({"type":"color","value":{"name":"gcid-a1b2","settings":{}}})$'));
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self::assertSame('content', VariableRef::typeOf(self::content('post_title', '{}')));
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self::assertSame('color', VariableRef::typeOf('$variable({"value":{"name":"gcid-a1b2"},"type":"color"})$'));
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self::assertNull(VariableRef::typeOf('#1a1a1a'));
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self::assertNull(VariableRef::typeOf('$variable(kaputt)$'));
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self::assertNull(VariableRef::typeOf('$variable({"type":"evil","value":{"name":"x"}})$'));
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self::assertNull(VariableRef::typeOf('#fff $variable({"type":"color","value":{"name":"gcid-a1b2","settings":{}}})$'));
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self::assertNull(VariableRef::typeOf('$variable({"type":"color","value":{"name":"gcid-a1b2","settings":{}}})$ '));
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}
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public function testDetectsReferences(): void
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{
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self::assertTrue(VariableRef::contains('a $variable( b'));
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self::assertFalse(VariableRef::contains('Preis: 5 $'));
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}
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/**
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* Ruling S37 (M-1/M-3): map field types come from a filter – untrusted. url → url() (a URL the
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* sanitizer empties is refused), select_post → a readable numeric post id, select /
|
||
* yes_no_button / number → plain values; every other type is refused.
|
||
*/
|
||
public function testMapFieldTypesAreRoutedStrictly(): void
|
||
{
|
||
$ref = self::ref([
|
||
'evil' => ['link' => 'url', 'color' => 'color', 'blank' => '', 'flag' => 'yes_no_button', 'n' => 'number'],
|
||
'post_link_url_page' => ['post_id' => 'select_post'],
|
||
]);
|
||
$sanitizer = ComposeFixture::sanitizer();
|
||
|
||
self::assertSame(
|
||
self::content('evil', '{"link":"https://kunde.test/a%20b","flag":"on","n":3}'),
|
||
$ref->canonical(self::content('evil', '{"link":" https://kunde.test/a b","flag":"on","n":3}'), $sanitizer)
|
||
);
|
||
self::assertSame(
|
||
self::content('post_link_url_page', '{"post_id":"12"}'),
|
||
$ref->canonical(self::content('post_link_url_page', '{"post_id":"12"}'), $sanitizer, true)
|
||
);
|
||
self::assertSame(
|
||
self::content('post_link_url_page', '{"post_id":12}'),
|
||
$ref->canonical(self::content('post_link_url_page', '{"post_id":12}'), $sanitizer, true)
|
||
);
|
||
|
||
$rejected = [
|
||
'javascript: in a url setting' => [self::content('evil', '{"link":"javascript:alert(1)"}'), 'URL'],
|
||
'url setting not a string' => [self::content('evil', '{"link":5}'), 'nur Text'],
|
||
'unknown field type' => [self::content('evil', '{"color":"red"}'), 'Feldtyp'],
|
||
'empty field type' => [self::content('evil', '{"blank":"x"}'), 'Feldtyp'],
|
||
'post slug' => [self::content('post_link_url_page', '{"post_id":"impressum"}'), 'Beitrags-ID'],
|
||
'zero post id' => [self::content('post_link_url_page', '{"post_id":0}'), 'Beitrags-ID'],
|
||
'negative post id' => [self::content('post_link_url_page', '{"post_id":"-3"}'), 'Beitrags-ID'],
|
||
'unreadable post' => [self::content('post_link_url_page', '{"post_id":"666"}'), 'Beitrags-ID'],
|
||
];
|
||
foreach ($rejected as $case => [$value, $fragment]) {
|
||
try {
|
||
// URL mode: internal links (post_link_url_*) are allowed only there (E13a).
|
||
$ref->canonical($value, $sanitizer, true);
|
||
self::fail('Accepted: ' . $case);
|
||
} catch (InvalidArgumentException $e) {
|
||
self::assertStringContainsString($fragment, $e->getMessage(), $case);
|
||
}
|
||
}
|
||
}
|
||
|
||
/** Ruling P10: a full-form internal link follows the {{link:}} target rules, its type included. */
|
||
public function testFullFormInternalLinksFollowTheLinkTargetRules(): void
|
||
{
|
||
$ref = self::ref([
|
||
'post_link_url_page' => ['post_id' => 'select_post'],
|
||
'post_link_url_post' => ['post_id' => 'select_post'],
|
||
]);
|
||
$sanitizer = ComposeFixture::sanitizer();
|
||
|
||
self::assertSame(
|
||
self::content('post_link_url_post', '{"post_id":"840"}'),
|
||
$ref->canonical(self::content('post_link_url_post', '{"post_id":"840"}'), $sanitizer, true)
|
||
);
|
||
self::assertSame(
|
||
self::content('post_link_url_post', '{"post_id":840}'),
|
||
$ref->canonical(self::content('post_link_url_post', '{"post_id":840}'), $sanitizer, true)
|
||
);
|
||
$refused = [
|
||
'a post is no page' => self::content('post_link_url_page', '{"post_id":"840"}'),
|
||
'a post is no page (int)' => self::content('post_link_url_page', '{"post_id":840}'),
|
||
'a page is no post' => self::content('post_link_url_post', '{"post_id":"12"}'),
|
||
'no link target' => self::content('post_link_url_page', '{"post_id":"666"}'),
|
||
'attachment' => self::content('post_link_url_page', '{"post_id":"667"}'),
|
||
'overflowing id' => self::content('post_link_url_page', '{"post_id":"99999999999999999999"}'),
|
||
'padded id' => self::content('post_link_url_page', '{"post_id":"0840"}'),
|
||
'float id' => self::content('post_link_url_page', '{"post_id":12.0}'),
|
||
'bool id' => self::content('post_link_url_page', '{"post_id":true}'),
|
||
];
|
||
foreach ($refused as $case => $value) {
|
||
try {
|
||
$ref->canonical($value, $sanitizer, true);
|
||
self::fail($case . ' was accepted');
|
||
} catch (InvalidArgumentException $e) {
|
||
self::assertStringContainsString('Beitrags-ID', $e->getMessage(), $case);
|
||
}
|
||
}
|
||
}
|
||
|
||
/** Ruling S37/P10: select_post outside an internal link stays "a post the user may read", of any type. */
|
||
public function testOtherPostSettingsOnlyNeedAReadablePost(): void
|
||
{
|
||
$ref = self::ref(['evil' => ['p' => 'select_post']]);
|
||
$sanitizer = ComposeFixture::sanitizer();
|
||
|
||
self::assertSame(
|
||
self::content('evil', '{"p":"840"}'),
|
||
$ref->canonical(self::content('evil', '{"p":"840"}'), $sanitizer)
|
||
);
|
||
foreach (['"666"', '"0840"', '"99999999999999999999"'] as $id) {
|
||
try {
|
||
$ref->canonical(self::content('evil', '{"p":' . $id . '}'), $sanitizer);
|
||
self::fail($id . ' was accepted');
|
||
} catch (InvalidArgumentException $e) {
|
||
self::assertStringContainsString('Beitrags-ID', $e->getMessage(), $id);
|
||
}
|
||
}
|
||
}
|
||
|
||
/** E13a: an internal link (post_link_url_<type>) is a URL – refused in every other field. */
|
||
public function testInternalLinksOnlyInUrlFields(): void
|
||
{
|
||
$ref = self::ref(['post_link_url_page' => ['post_id' => 'select_post']]);
|
||
$link = self::content('post_link_url_page', '{"post_id":"12"}');
|
||
|
||
self::assertSame($link, $ref->canonical($link, ComposeFixture::sanitizer(), true));
|
||
|
||
$this->expectException(InvalidArgumentException::class);
|
||
$this->expectExceptionMessage('nur in Link- und URL-Feldern');
|
||
$ref->canonical($link, ComposeFixture::sanitizer());
|
||
}
|
||
}
|