fourth-wall-embed-wp/libs/shortcode.php

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PHP
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2024-12-27 14:10:25 -08:00
<?php
/**
* Common function to make HTTP requests to Fourthwall
*
* @param string $url The URL to fetch
* @return array Array containing 'content' and 'error' keys
*/
function fwembed_make_request($url) {
// Check for cached content first
$cache_key = 'fwembed_' . md5($url);
$cached_content = get_transient($cache_key);
if ($cached_content !== false) {
return $cached_content;
}
$options = get_option('fourthwall_settings_name');
$ssl_verify = isset($options['ssl_verify']) ? $options['ssl_verify'] : true;
$ch = curl_init();
// More complete browser-like headers
$headers = [
'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
'Accept-Language: en-US,en;q=0.5',
'Connection: keep-alive',
'Upgrade-Insecure-Requests: 1',
'Cache-Control: max-age=0'
];
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_ENCODING, "");
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0');
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $ssl_verify);
curl_setopt($ch, CURLOPT_COOKIEJAR, '/tmp/cookies.txt');
curl_setopt($ch, CURLOPT_COOKIEFILE, '/tmp/cookies.txt');
$html_content = curl_exec($ch);
$error = null;
$status_code = 0;
if (curl_errno($ch)) {
$error = curl_error($ch);
} else {
$status_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
if ($status_code == 403) {
$error = "Access forbidden (403). The website may be blocking automated requests.";
}
}
curl_close($ch);
$result = [
'content' => $html_content,
'error' => $error,
'status_code' => $status_code
];
// Cache the result for 1 hour (3600 seconds) if no error
if (!$error && $status_code == 200) {
set_transient($cache_key, $result, 3600);
}
return $result;
}
/**
* Parse HTML content and extract product tiles
*
* @param string $html_content The HTML content to parse
* @param string $base_url The base URL for constructing links
* @return string Parsed HTML content
*/
function fwembed_parse_product_tiles($html_content, $base_url) {
$html = null;
libxml_use_internal_errors(true);
$dom = new DOMDocument();
@$dom->loadHTML(loadHTML5($html_content), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$dom->documentURI = $base_url;
$divs = $dom->getElementsByTagName('div');
foreach ($divs as $div) {
if ($div->hasAttribute('data-testid') && $div->getAttribute('data-testid') === 'product') {
$xpath = new DOMXPath($dom);
$tileLink = $xpath->query('.//a[contains(@class, "tile")]', $div);
$tileItem = $xpath->query('.//img[contains(@class, "tile__item--1")
and not(contains(@class, "badge"))
and not(contains(@class, "tile_options"))
and not(contains(@class, "tile__item--2"))]', $div);
$tileDesc = $xpath->query('.//*[contains(@class, "tile__description")
and not(contains(@class, "badge"))
and not(contains(@class, "tile_options"))]', $div);
$productHTML = '';
$linkHref = '';
if ($tileLink->length > 0) {
$linkHref = $tileLink->item(0)->getAttribute('href');
}
if ($tileItem->length > 0) {
$productHTML .= $dom->saveHTML($tileItem->item(0));
}
if ($tileDesc->length > 0) {
$productHTML .= $dom->saveHTML($tileDesc->item(0));
}
$html = $html . '<div class="product-tile"><a class="product-link" target="_blank" href="' . $base_url . $linkHref . '">' . $productHTML . '</a></div>';
}
}
libxml_clear_errors();
return $html;
}
function fwembed_parse_html($url = null) {
if ($url === null) {
throw new ValueError("Missing URL");
}
$result = fwembed_make_request($url);
if ($result['error']) {
return "Error fetching URL: " . $result['error'];
}
return fwembed_parse_product_tiles($result['content'], $url);
}
function loadHTML5($html) {
return '<!DOCTYPE html><html><body>' . $html . '</body></html>';
}
function fwembed_shortcode( $atts ) {
$options = get_option( 'fourthwall_settings_name' );
$value = isset( $options['fourth_url'] ) ? $options['fourth_url'] : 'https://fourthwall.com';
$store_html = fwembed_parse_html($value);
$store_render = '<div class="fw-store-parent">' . PHP_EOL . $store_html . PHP_EOL . '</div>';
return $store_render;
}
/**
* Parse HTML content and extract single product information
*
* @param string $html_content The HTML content to parse
* @param string $url The product URL
* @param bool $show_description Whether to show product description
* @return string Parsed HTML content
*/
function fwembed_parse_single_product($html_content, $url, $show_description = false) {
$html = null;
libxml_use_internal_errors(true);
$dom = new DOMDocument();
@$dom->loadHTML(loadHTML5($html_content), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$dom->documentURI = $url;
$xpath = new DOMXPath($dom);
// Extract product information
$productTitle = $xpath->query('//h1[@class="product-info__title"]');
$productPrice = $xpath->query('//span[@class="product-info__price product-info__price--original"]');
$productImage = $xpath->query('//div[@data-gallery="gallery-slide"][1]//img[@class="gallery__image-object"]');
$productDesc = $xpath->query('//div[@class="product-info__description"]//div[@class="html-formatter"]');
if ($productTitle->length > 0 && $productImage->length > 0) {
$title = $productTitle->item(0)->textContent;
$price = $productPrice->length > 0 ? $productPrice->item(0)->textContent : '';
// Get image attributes
$imageNode = $productImage->item(0);
$imageSrc = $imageNode->getAttribute('src');
$imageAlt = $imageNode->getAttribute('alt');
// Build the HTML
$html = '<div class="product-tile">';
$html .= '<a class="product-link" target="_blank" href="' . $url . '">';
$html .= '<img class="tile__item tile__item--1" src="' . $imageSrc . '" alt="' . htmlspecialchars($imageAlt) . '">';
$html .= '<div class="tile__description">';
$html .= '<h3 class="tile__heading">' . htmlspecialchars(trim($title)) . '</h3>';
$html .= '<div class="tile__prices">';
$html .= '<span class="tile__price tile__price--original">' . trim($price) . '</span>';
$html .= '</div>';
$html .= '</div>';
$html .= '</a>';
// Add description if show_description is true
if ($show_description && $productDesc->length > 0) {
$description = $dom->saveHTML($productDesc->item(0));
$html .= '<div class="product-description">' . $description . '</div>';
}
$html .= '</div>';
}
libxml_clear_errors();
return $html;
}
function fwembed_parse_html_single($url = null, $show_description = false) {
if ($url === null) {
throw new ValueError("Missing URL");
}
$result = fwembed_make_request($url);
if ($result['error']) {
return "Error fetching URL: " . $result['error'];
}
return fwembed_parse_single_product($result['content'], $url, $show_description);
}
function fwembed_single_shortcode($atts) {
$atts = shortcode_atts(
array(
'url' => '',
'show_description' => 'false',
),
$atts
);
if (empty($atts['url'])) {
return '<p>Error: URL is required for [fourthwall_single] shortcode</p>';
}
// Convert string 'true'/'false' to boolean
$show_description = filter_var($atts['show_description'], FILTER_VALIDATE_BOOLEAN);
$product_html = fwembed_parse_html_single($atts['url'], $show_description);
return '<div class="fw-single-product">' . PHP_EOL . $product_html . PHP_EOL . '</div>';
}
add_shortcode('fourthwall_single', 'fwembed_single_shortcode');
add_shortcode( 'fourthwall', 'fwembed_shortcode' );