Jan-Niclas LoosenandClaude Sonnet 5.5
15cffedb9f
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
70 lines
2.4 KiB
PHP
70 lines
2.4 KiB
PHP
<?php
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declare(strict_types=1);
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namespace LIT\MCP\Integrations\Divi\Design;
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defined('ABSPATH') || exit;
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/**
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* Name rules of an uploaded font (ruling W9), stricter than FontsUtility::font_add(): Divi silently strips every
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* character but A–Z, a–z, 0–9, whitespace, _ and -; the plugin refuses them and names what Divi would store.
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* Divi compares names with Google's and uploaded fonts case-sensitively and skips the web-safe ones; the plugin
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* refuses any of them whatever the case, so a font never shadows another one in Divi's font lists. Pure PHP.
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*/
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final class FontNameRules
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{
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/** = FontsUtility::FONT_NAME_MAX_LENGTH in Divi 5.15.1 (FontInstaller::nameMaxLength() reads Divi's). */
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public const MAX_LENGTH = 100;
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private const ALLOWED = '/^[A-Za-z0-9 _-]+$/D';
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/** What FontsUtility::font_add() removes from a name. */
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private const DIVI_STRIPS = '/[^A-Za-z0-9\s\_-]/';
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/**
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* The form only; whether the name is taken is taken().
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*
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* @return string|null null = valid, else the problem (German).
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*/
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public static function check(string $name, int $maxLength = self::MAX_LENGTH): ?string
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{
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if (trim($name) === '') {
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return sprintf('Name fehlt (1–%d Zeichen)', $maxLength);
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}
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if (preg_match(self::ALLOWED, $name) !== 1) {
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$stored = trim((string) preg_replace(self::DIVI_STRIPS, '', $name));
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return 'nur Buchstaben A–Z/a–z, Ziffern, Leerzeichen, _ und - erlaubt ('
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. ($stored === '' ? 'Divi ließe nichts übrig)' : sprintf('Divi würde „%s“ speichern)', $stored));
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}
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if ($name !== trim($name)) {
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return 'ohne Leerzeichen am Anfang oder Ende';
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}
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if (strlen($name) > $maxLength) {
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return sprintf('höchstens %d Zeichen (%d angegeben)', $maxLength, strlen($name));
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}
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return null;
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}
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/**
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* @param list<string> $reserved Names of Google, web-safe and uploaded fonts (FontCatalog::reserved()).
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* @return string|null The existing name $name collides with (case-insensitive), null when it is free.
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*/
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public static function taken(string $name, array $reserved): ?string
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{
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$lower = strtolower($name);
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foreach ($reserved as $existing) {
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if (strtolower($existing) === $lower) {
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return $existing;
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}
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}
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return null;
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}
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}
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