Josh Knapp
779fb54995
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Create Release / build (push) Successful in 5s
- Add [fourthwall_random] shortcode for displaying random products - Support for specifying count of products to display - Option to use all store products or specific product URLs - Add fwembed_extract_product_urls() function to extract product URLs - Add fwembed_get_random_products() function for randomization logic - Update README.md with comprehensive documentation and examples - Maintain backward compatibility with existing shortcodes
359 lines
12 KiB
PHP
359 lines
12 KiB
PHP
<?php
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/**
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* Common function to make HTTP requests to Fourthwall
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*
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* @param string $url The URL to fetch
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* @return array Array containing 'content' and 'error' keys
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*/
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function fwembed_make_request($url) {
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// Check for cached content first
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$cache_key = 'fwembed_' . md5($url);
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$cached_content = get_transient($cache_key);
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if ($cached_content !== false) {
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return $cached_content;
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}
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$options = get_option('fourthwall_settings_name');
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$ssl_verify = isset($options['ssl_verify']) ? $options['ssl_verify'] : true;
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$ch = curl_init();
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// More complete browser-like headers
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$headers = [
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'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
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'Accept-Language: en-US,en;q=0.5',
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'Connection: keep-alive',
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'Upgrade-Insecure-Requests: 1',
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'Cache-Control: max-age=0'
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];
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curl_setopt($ch, CURLOPT_URL, $url);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
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curl_setopt($ch, CURLOPT_ENCODING, "");
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curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
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curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0');
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curl_setopt($ch, CURLOPT_TIMEOUT, 30);
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $ssl_verify);
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curl_setopt($ch, CURLOPT_COOKIEJAR, '/tmp/cookies.txt');
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curl_setopt($ch, CURLOPT_COOKIEFILE, '/tmp/cookies.txt');
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$html_content = curl_exec($ch);
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$error = null;
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$status_code = 0;
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if (curl_errno($ch)) {
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$error = curl_error($ch);
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} else {
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$status_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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if ($status_code == 403) {
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$error = "Access forbidden (403). The website may be blocking automated requests.";
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}
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}
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curl_close($ch);
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$result = [
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'content' => $html_content,
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'error' => $error,
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'status_code' => $status_code
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];
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// Cache the result for 1 hour (3600 seconds) if no error
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if (!$error && $status_code == 200) {
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set_transient($cache_key, $result, 3600);
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}
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return $result;
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}
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/**
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* Parse HTML content and extract product tiles
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*
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* @param string $html_content The HTML content to parse
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* @param string $base_url The base URL for constructing links
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* @return string Parsed HTML content
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*/
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function fwembed_parse_product_tiles($html_content, $base_url) {
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$html = null;
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libxml_use_internal_errors(true);
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$dom = new DOMDocument();
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@$dom->loadHTML(loadHTML5($html_content), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
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$dom->documentURI = $base_url;
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$divs = $dom->getElementsByTagName('div');
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foreach ($divs as $div) {
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if ($div->hasAttribute('data-testid') && $div->getAttribute('data-testid') === 'product') {
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$xpath = new DOMXPath($dom);
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$tileLink = $xpath->query('.//a[contains(@class, "tile")]', $div);
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$tileItem = $xpath->query('.//img[contains(@class, "tile__item--1")
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and not(contains(@class, "badge"))
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and not(contains(@class, "tile_options"))
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and not(contains(@class, "tile__item--2"))]', $div);
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$tileDesc = $xpath->query('.//*[contains(@class, "tile__description")
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and not(contains(@class, "badge"))
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and not(contains(@class, "tile_options"))]', $div);
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$productHTML = '';
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$linkHref = '';
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if ($tileLink->length > 0) {
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$linkHref = $tileLink->item(0)->getAttribute('href');
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}
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if ($tileItem->length > 0) {
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$productHTML .= $dom->saveHTML($tileItem->item(0));
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}
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if ($tileDesc->length > 0) {
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$productHTML .= $dom->saveHTML($tileDesc->item(0));
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}
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$html = $html . '<div class="product-tile"><a class="product-link" target="_blank" href="' . $base_url . $linkHref . '">' . $productHTML . '</a></div>';
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}
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}
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libxml_clear_errors();
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return $html;
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}
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function fwembed_parse_html($url = null) {
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if ($url === null) {
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throw new ValueError("Missing URL");
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}
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$result = fwembed_make_request($url);
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if ($result['error']) {
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return "Error fetching URL: " . $result['error'];
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}
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return fwembed_parse_product_tiles($result['content'], $url);
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}
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function loadHTML5($html) {
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return '<!DOCTYPE html><html><body>' . $html . '</body></html>';
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}
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function fwembed_shortcode( $atts ) {
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$options = get_option( 'fourthwall_settings_name' );
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$value = isset( $options['fourth_url'] ) ? $options['fourth_url'] : 'https://fourthwall.com';
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$store_html = fwembed_parse_html($value);
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$store_render = '<div class="fw-store-parent">' . PHP_EOL . $store_html . PHP_EOL . '</div>';
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return $store_render;
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}
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/**
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* Parse HTML content and extract single product information
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*
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* @param string $html_content The HTML content to parse
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* @param string $url The product URL
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* @param bool $show_description Whether to show product description
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* @return string Parsed HTML content
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*/
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function fwembed_parse_single_product($html_content, $url, $show_description = false) {
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$html = null;
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libxml_use_internal_errors(true);
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$dom = new DOMDocument();
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@$dom->loadHTML(loadHTML5($html_content), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
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$dom->documentURI = $url;
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$xpath = new DOMXPath($dom);
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// Extract product information
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$productTitle = $xpath->query('//h1[@class="product-info__title"]');
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$productPrice = $xpath->query('//span[@class="product-info__price product-info__price--original"]');
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$productImage = $xpath->query('//div[@data-gallery="gallery-slide"][1]//img[@class="gallery__image-object"]');
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$productDesc = $xpath->query('//div[@class="product-info__description"]//div[@class="html-formatter"]');
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if ($productTitle->length > 0 && $productImage->length > 0) {
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$title = $productTitle->item(0)->textContent;
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$price = $productPrice->length > 0 ? $productPrice->item(0)->textContent : '';
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// Get image attributes
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$imageNode = $productImage->item(0);
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$imageSrc = $imageNode->getAttribute('src');
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$imageAlt = $imageNode->getAttribute('alt');
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// Build the HTML
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$html = '<div class="product-tile">';
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$html .= '<a class="product-link" target="_blank" href="' . $url . '">';
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$html .= '<img class="tile__item tile__item--1" src="' . $imageSrc . '" alt="' . htmlspecialchars($imageAlt) . '">';
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$html .= '<div class="tile__description">';
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$html .= '<h3 class="tile__heading">' . htmlspecialchars(trim($title)) . '</h3>';
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$html .= '<div class="tile__prices">';
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$html .= '<span class="tile__price tile__price--original">' . trim($price) . '</span>';
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$html .= '</div>';
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$html .= '</div>';
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$html .= '</a>';
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// Add description if show_description is true
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if ($show_description && $productDesc->length > 0) {
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$description = $dom->saveHTML($productDesc->item(0));
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$html .= '<div class="product-description">' . $description . '</div>';
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}
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$html .= '</div>';
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}
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libxml_clear_errors();
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return $html;
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}
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function fwembed_parse_html_single($url = null, $show_description = false) {
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if ($url === null) {
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throw new ValueError("Missing URL");
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}
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$result = fwembed_make_request($url);
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if ($result['error']) {
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return "Error fetching URL: " . $result['error'];
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}
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return fwembed_parse_single_product($result['content'], $url, $show_description);
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}
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function fwembed_single_shortcode($atts) {
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$atts = shortcode_atts(
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array(
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'url' => '',
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'show_description' => 'false',
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),
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$atts
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);
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if (empty($atts['url'])) {
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return '<p>Error: URL is required for [fourthwall_single] shortcode</p>';
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}
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// Convert string 'true'/'false' to boolean
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$show_description = filter_var($atts['show_description'], FILTER_VALIDATE_BOOLEAN);
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$product_html = fwembed_parse_html_single($atts['url'], $show_description);
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return '<div class="fw-single-product">' . PHP_EOL . $product_html . PHP_EOL . '</div>';
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}
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add_shortcode('fourthwall_single', 'fwembed_single_shortcode');
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add_shortcode( 'fourthwall', 'fwembed_shortcode' );
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add_shortcode( 'fourthwall_random', 'fwembed_random_shortcode' );
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/**
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* Extract all product URLs from a store page
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*
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* @param string $html_content The HTML content to parse
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* @param string $base_url The base URL for constructing links
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* @return array Array of product URLs
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*/
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function fwembed_extract_product_urls($html_content, $base_url) {
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$product_urls = array();
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libxml_use_internal_errors(true);
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$dom = new DOMDocument();
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@$dom->loadHTML(loadHTML5($html_content), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
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$dom->documentURI = $base_url;
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$divs = $dom->getElementsByTagName('div');
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foreach ($divs as $div) {
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if ($div->hasAttribute('data-testid') && $div->getAttribute('data-testid') === 'product') {
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$xpath = new DOMXPath($dom);
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$tileLink = $xpath->query('.//a[contains(@class, "tile")]', $div);
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if ($tileLink->length > 0) {
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$linkHref = $tileLink->item(0)->getAttribute('href');
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$full_url = $base_url . $linkHref;
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$product_urls[] = $full_url;
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}
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}
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}
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libxml_clear_errors();
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return $product_urls;
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}
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/**
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* Get random products from store or specified URLs
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*
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* @param string $store_url The store URL to fetch products from (optional if urls provided)
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* @param array $urls Array of specific product URLs to randomize from
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* @param int $count Number of products to display
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* @return string HTML content of random products
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*/
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function fwembed_get_random_products($store_url = null, $urls = array(), $count = 3) {
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$product_urls = array();
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// If specific URLs are provided, use those
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if (!empty($urls)) {
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$product_urls = $urls;
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}
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// Otherwise, fetch all products from the store
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elseif ($store_url) {
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$result = fwembed_make_request($store_url);
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if ($result['error']) {
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return "Error fetching store URL: " . $result['error'];
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}
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$product_urls = fwembed_extract_product_urls($result['content'], $store_url);
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} else {
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return "Error: Either store URL or product URLs must be provided";
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}
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// Shuffle the URLs to randomize
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shuffle($product_urls);
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// Limit to requested count
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$selected_urls = array_slice($product_urls, 0, $count);
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$html = '';
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foreach ($selected_urls as $url) {
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$product_html = fwembed_parse_html_single($url, false);
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if ($product_html && !strpos($product_html, 'Error fetching URL')) {
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$html .= $product_html;
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}
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}
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return $html;
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}
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function fwembed_random_shortcode($atts) {
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$atts = shortcode_atts(
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array(
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'count' => '3',
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'urls' => '',
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'store_url' => '',
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),
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$atts
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);
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$count = intval($atts['count']);
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if ($count <= 0) {
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$count = 3;
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}
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$urls = array();
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if (!empty($atts['urls'])) {
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// Split URLs by comma and clean them up
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$url_array = explode(',', $atts['urls']);
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foreach ($url_array as $url) {
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$clean_url = trim($url);
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if (!empty($clean_url)) {
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$urls[] = $clean_url;
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}
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}
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}
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$store_url = '';
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if (!empty($atts['store_url'])) {
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$store_url = trim($atts['store_url']);
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} else {
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// Use default store URL from settings if no store_url provided
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$options = get_option('fourthwall_settings_name');
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$store_url = isset($options['fourth_url']) ? $options['fourth_url'] : '';
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}
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$products_html = fwembed_get_random_products($store_url, $urls, $count);
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if (empty($products_html)) {
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return '<p>No products found to display.</p>';
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}
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return '<div class="fw-random-products">' . PHP_EOL . $products_html . PHP_EOL . '</div>';
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}
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