<?php

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namespace EmbedPress\Providers;

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use Embera\Provider\ProviderAdapter;

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use Embera\Provider\ProviderInterface;

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use Embera\Url;

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(defined('ABSPATH') && defined('EMBEDPRESS_IS_LOADED')) or die("No direct script access allowed.");

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/**

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* Entity responsible to support Giphy embeds.

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*

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* @package EmbedPress

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* @subpackage EmbedPress/Providers

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* @author EmbedPress <help@embedpress.com>

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* @copyright Copyright (C) 2023 WPDeveloper. All rights reserved.

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* @license GPLv3 or later

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* @since 1.5.0

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*/

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class Giphy extends ProviderAdapter implements ProviderInterface

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{

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/**

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* The regex which identifies Giphy URLs.

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*

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* @since 1.5.0

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* @access private

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*

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* @var string

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*/

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private $urlRegexPattern = '~http[s]?:\/\/(?:www\.)?giphy\.com\/(?:gifs|clips)\/(?:[a-zA-Z0-9\-]+\-)?([a-zA-Z0-9]+)(?:[^\w\-]|$)|i.giphy\.com\/([a-zA-Z0-9]+)(\.gif)~';

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/**

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* Method that verifies if the embed URL belongs to Giphy.

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*

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* @param Url $url

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* @return boolean

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* @since 1.5.0

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*

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*/

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public function validateUrl(Url $url)

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{

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$urlString = (string) $url;

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if (preg_match($this->urlRegexPattern, $urlString, $matches)) {

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// Check which group matched and extract the GIF ID

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$gifId = isset($matches[1]) && !empty($matches[1]) ? $matches[1] : (isset($matches[2]) ? $matches[2] : null);

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return $gifId;

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}

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return false;

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}

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/**

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* This method fakes an Oembed response.

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*

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* @since 1.5.0

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*

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* @return array

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*/

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public function fakeResponse()

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{

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$url = $this->getUrl();

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if (preg_match($this->urlRegexPattern, $url, $matches)) {

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$gifId = count($matches) > 3 && strtolower($matches[3]) === ".gif" ? $matches[2] : $matches[1];

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$width = isset($this->config['maxwidth']) ? $this->config['maxwidth'] : 400;

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$height = isset($this->config['maxheight']) ? $this->config['maxheight'] : 400;

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$html = '<a href="https://giphy.com/gifs/' . $gifId . '">' .

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'<img src="https://media.giphy.com/media/' . $gifId . '/giphy.gif" alt="" width="' . esc_attr($width) . '" height="' . esc_attr($height) . '">' .

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'</a>';

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$response = [

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'type' => 'image',

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'provider_name' => 'Giphy',

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'provider_url' => 'https://giphy.com',

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'url' => $url,

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'html' => $html,

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];

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} else {

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$response = [];

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}

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return $response;

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}

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/** inline @inheritDoc */

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public function modifyResponse(array $response = [])

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{

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return $this->fakeResponse();

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}

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}

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