145 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			145 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * Class Ezoic
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 *
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 * @link      https://github.com/googleforcreators/web-stories-wp
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 *
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 * @copyright 2020 Google LLC
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 * @license   https://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
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 */
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/**
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 * Copyright 2020 Google LLC
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *     https://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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declare(strict_types = 1);
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namespace Google\Web_Stories\Integrations;
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use Google\Web_Stories\AMP\Optimization;
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use Google\Web_Stories\AMP\Sanitization;
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use Google\Web_Stories\Context;
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use Google\Web_Stories\Exception\SanitizationException;
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use Google\Web_Stories\Infrastructure\Conditional;
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use Google\Web_Stories\Service_Base;
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use Google\Web_Stories_Dependencies\AmpProject\Dom\Document;
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use Throwable;
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/**
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 * Class Ezoic.
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 */
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class Ezoic extends Service_Base implements Conditional {
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	/**
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	 * Sanitization instance.
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	 *
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	 * @var Sanitization Sanitization instance.
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	 */
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	private Sanitization $sanitization;
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	/**
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	 * Optimization instance.
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	 *
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	 * @var Optimization Optimization instance.
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	 */
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	private Optimization $optimization;
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	/**
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	 * Context instance.
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	 *
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	 * @var Context Context instance.
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	 */
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	private Context $context;
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	/**
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	 * Constructor.
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	 * 
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	 * @since 1.33.0
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	 *
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	 * @param Sanitization $sanitization Sanitization instance.
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	 * @param Optimization $optimization Optimization instance.
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	 * @param Context      $context Context instance.
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	 */
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	public function __construct( Sanitization $sanitization, Optimization $optimization, Context $context ) {
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		$this->sanitization = $sanitization;
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		$this->optimization = $optimization;
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		$this->context      = $context;
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	}
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	/**
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	 * Initializes all hooks.
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	 *
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	 * @since 1.33.0
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	 */
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	public function register(): void {
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		add_filter( 'ez_buffered_final_content', [ $this, 'process_ez_buffered_final_content' ] );
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	}
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	/**
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	 * Check whether the Ezoic integration is currently needed.
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	 *
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	 * @since 1.33.0
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	 *
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	 * @return bool Whether Ezoic integration is currently needed.
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	 */
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	public static function is_needed(): bool {
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		return \defined( 'EZOIC_INTEGRATION_VERSION' );
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	}
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	/**
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	 * Optimizes and Sanitizes Ezoic's final prepared content.
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	 *
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	 * @since 1.33.0
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	 *
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	 * @param string $content HTML document response collected by Ezoic Output Buffer.
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	 * @return string AMP document response.
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	 */
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	public function process_ez_buffered_final_content( string $content ): string {
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		if ( $this->context->is_web_story() ) {
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			// Enforce UTF-8 encoding as it is a requirement for AMP.
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			if ( ! headers_sent() ) {
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				header( 'Content-Type: text/html; charset=utf-8' );
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			}
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			$dom = Document::fromHtml( $content );
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			if ( ! $dom instanceof Document ) {
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				return $this->render_error_page( SanitizationException::from_document_parse_error() );
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			}
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			$this->sanitization->sanitize_document( $dom );
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			$this->optimization->optimize_document( $dom );
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			return $dom->saveHTML();
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		}
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		return $content;
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	}
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	/**
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	 * Render error page.
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	 *
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	 * @since 1.33.0
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	 *
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	 * @param Throwable $throwable Exception or (as of PHP7) Error.
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	 * @return string Error page.
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	 */
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	private function render_error_page( Throwable $throwable ): string {
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		return esc_html__( 'There was an error generating the web story, probably because of a server misconfiguration. Try contacting your hosting provider or open a new support request.', 'web-stories' ) .
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			"\n" .
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			"\n" .
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			// translators: 1: error message. 2: location.
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			sprintf( esc_html__( 'Error message: %1$s (%2$s)', 'web-stories' ), $throwable->getMessage(), $throwable->getFile() . ':' . $throwable->getLine() );
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	}
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}
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