[TASK] Split up ContentParser to multiple classes and interfaces

Classes/Service/Preview/ContentExtractors/BaseUrlParser.php

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+<?php
+
+declare(strict_types=1);
+
+namespace YoastSeoForTypo3\YoastSeo\Service\Preview\ContentExtractors;
+
+class BaseUrlParser implements BaseUrlParserInterface
+{
+    public function getBaseUrl(mixed $urlParts): string
+    {
+        if (!is_array($urlParts)) {
+            return '://';
+        }
+        if ($urlParts['port'] ?? false) {
+            return (isset($urlParts['scheme']) ? $urlParts['scheme'] . ':' : '') . '//' . ($urlParts['host'] ?? '') . ':' . $urlParts['port'];
+        }
+        return (isset($urlParts['scheme']) ? $urlParts['scheme'] . ':' : '') . '//' . ($urlParts['host'] ?? '');
+    }
+}

Classes/Service/Preview/ContentExtractors/BaseUrlParserInterface.php

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+<?php
+
+declare(strict_types=1);
+
+namespace YoastSeoForTypo3\YoastSeo\Service\Preview\ContentExtractors;
+
+interface BaseUrlParserInterface
+{
+    public function getBaseUrl(mixed $urlParts): string;
+}

Classes/Service/Preview/ContentExtractors/BodyProcessor.php

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+<?php
+
+declare(strict_types=1);
+
+namespace YoastSeoForTypo3\YoastSeo\Service\Preview\ContentExtractors;
+
+class BodyProcessor implements BodyProcessorInterface
+{
+    public function getBody(string $content): string
+    {
+        $body = '';
+
+        $bodyFound = preg_match("/<body[^>]*>(.*)<\/body>/is", $content, $matchesBody);
+
+        if ($bodyFound) {
+            $body = $matchesBody[1];
+
+            preg_match_all(
+                '/<!--\s*?TYPO3SEARCH_begin\s*?-->.*?<!--\s*?TYPO3SEARCH_end\s*?-->/mis',
+                $body,
+                $indexableContents
+            );
+
+            if (is_array($indexableContents[0]) && !empty($indexableContents[0])) {
+                $body = implode('', $indexableContents[0]);
+            }
+        }
+
+        return $this->prepareBody($body);
+    }
+
+    protected function prepareBody(string $body): string
+    {
+        $body = $this->stripTagsContent($body, '<script><noscript>');
+        $body = preg_replace(['/\s?\n\s?/', '/\s{2,}/'], [' ', ' '], $body);
+        $body = strip_tags((string)$body, '<h1><h2><h3><h4><h5><p><a><img>');
+
+        return trim($body);
+    }
+
+    protected function stripTagsContent(string $text, string $tags = ''): string
+    {
+        preg_match_all('/<(.+?)[\s]*\/?[\s]*>/si', trim($tags), $foundTags);
+        $tagsArray = array_unique($foundTags[1]);
+
+        if (count($tagsArray) > 0) {
+            return (string)preg_replace('@<(' . implode('|', $tagsArray) . ')\b.*?>.*?</\1>@si', '', $text);
+        }
+
+        return $text;
+    }
+}

Classes/Service/Preview/ContentExtractors/BodyProcessorInterface.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace YoastSeoForTypo3\YoastSeo\Service\Preview\ContentExtractors;
+
+interface BodyProcessorInterface
+{
+    public function getBody(string $content): string;
+}

Classes/Service/Preview/ContentExtractors/ContentMetadataExtractor.php

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+<?php
+
+declare(strict_types=1);
+
+namespace YoastSeoForTypo3\YoastSeo\Service\Preview\ContentExtractors;
+
+class ContentMetadataExtractor implements ContentMetadataExtractorInterface
+{
+    public function getTitle(string $content): string
+    {
+        $title = '';
+        $titleFound = preg_match("/<title[^>]*>(.*?)<\/title>/is", $content, $matchesTitle);
+
+        if ($titleFound) {
+            $title = $matchesTitle[1];
+        }
+
+        return strip_tags(html_entity_decode($title));
+    }
+
+    public function getDescription(string $content): string
+    {
+        $metaDescription = '';
+        $descriptionFound = preg_match(
+            "/<meta[^>]*name=[\" | \']description[\"|\'][^>]*content=[\"]([^\"]*)[\"][^>]*>/i",
+            $content,
+            $matchesDescription
+        );
+
+        if ($descriptionFound) {
+            $metaDescription = $matchesDescription[1];
+        }
+
+        return strip_tags(html_entity_decode($metaDescription));
+    }
+
+    public function getLocale(string $content): string
+    {
+        $locale = 'en';
+        $localeFound = preg_match('/<html[^>]*lang="([a-z\-A-Z]*)"/is', $content, $matchesLocale);
+
+        if ($localeFound) {
+            [$locale] = explode('-', trim($matchesLocale[1]));
+        }
+
+        return $locale;
+    }
+}

Classes/Service/Preview/ContentExtractors/ContentMetadataExtractorInterface.php

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+<?php
+
+declare(strict_types=1);
+
+namespace YoastSeoForTypo3\YoastSeo\Service\Preview\ContentExtractors;
+
+interface ContentMetadataExtractorInterface
+{
+    public function getTitle(string $content): string;
+    public function getDescription(string $content): string;
+    public function getLocale(string $content): string;
+}

Classes/Service/Preview/ContentExtractors/FaviconExtractor.php

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+<?php
+
+declare(strict_types=1);
+
+namespace YoastSeoForTypo3\YoastSeo\Service\Preview\ContentExtractors;
+
+class FaviconExtractor implements FaviconExtractorInterface
+{
+    public function getFaviconSrc(string $baseUrl, string $content): string
+    {
+        $faviconSrc = $baseUrl . '/favicon.ico';
+        $favIconFound = preg_match('/<link rel=\"shortcut icon\" href=\"([^"]*)\"/i', $content, $matchesFavIcon);
+        if ($favIconFound) {
+            $faviconSrc = str_contains($matchesFavIcon[1], '://') ? $matchesFavIcon[1] : $baseUrl . $matchesFavIcon[1];
+        }
+        $favIconHeader = @get_headers($faviconSrc);
+        if (($favIconHeader[0] ?? '') === 'HTTP/1.1 404 Not Found') {
+            $faviconSrc = '';
+        }
+        return $faviconSrc;
+    }
+}

Classes/Service/Preview/ContentExtractors/FaviconExtractorInterface.php

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+<?php
+
+declare(strict_types=1);
+
+namespace YoastSeoForTypo3\YoastSeo\Service\Preview\ContentExtractors;
+
+interface FaviconExtractorInterface
+{
+    public function getFaviconSrc(string $baseUrl, string $content): string;
+}

Classes/Service/Preview/ContentExtractors/TitleConfigurationExtractor.php

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+<?php
+
+declare(strict_types=1);
+
+namespace YoastSeoForTypo3\YoastSeo\Service\Preview\ContentExtractors;
+
+class TitleConfigurationExtractor implements TitleConfigurationExtractorInterface
+{
+    /**
+     * @return array{titlePrepend: string, titleAppend: string}
+     */
+    public function getTitleConfiguration(string $content): array
+    {
+        $prepend = $append = '';
+        preg_match('/<meta name=\"x-yoast-title-config\" value=\"([^"]*)\"/i', $content, $matchesTitleConfig);
+        if (count($matchesTitleConfig) > 1) {
+            [$prepend, $append] = explode('|||', (string)$matchesTitleConfig[1]);
+        }
+        return [
+            'titlePrepend' => $prepend,
+            'titleAppend' => $append,
+        ];
+    }
+}

Classes/Service/Preview/ContentExtractors/TitleConfigurationExtractorInterface.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace YoastSeoForTypo3\YoastSeo\Service\Preview\ContentExtractors;
+
+interface TitleConfigurationExtractorInterface
+{
+    public function getTitleConfiguration(string $content): array;
+}