136 lines
4.2 KiB
PHP
136 lines
4.2 KiB
PHP
<?php
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/**
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* Auto Upload Images functionality
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*
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* @package SEO_Pro_Stack
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*/
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class SEOProStack_Auto_Upload {
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/**
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* Initialize the class
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*/
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public function __construct() {
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add_filter('content_save_pre', array($this, 'process_content'), 10, 1);
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// New action name
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add_action('wp_seoprostack_image_upload_error', array($this, 'log_error'), 10, 2);
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// Backward compatibility
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add_action('wp_allstars_image_upload_error', array($this, 'log_error'), 10, 2);
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}
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/**
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* Process content for external images
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*
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* @param string $content The post content
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* @return string Modified content with local image URLs
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*/
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public function process_content($content) {
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// Check if auto upload is enabled - support both option names for backward compatibility
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$seoprostack_options = get_option('wp_seoprostack_workflow_options', null);
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$allstars_options = get_option('wp_allstars_workflow_options', array('auto_upload_images' => false));
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// Use new options if they exist, otherwise fall back to old options
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$options = $seoprostack_options !== null ? $seoprostack_options : $allstars_options;
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if (!$options['auto_upload_images']) {
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return $content;
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}
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// Regular expression to find image URLs
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$pattern = '/<img[^>]+src=[\'"]([^\'"]+)[\'"][^>]*>/i';
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return preg_replace_callback($pattern, array($this, 'process_image_url'), $content);
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}
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/**
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* Process individual image URL
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*
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* @param array $matches Regex matches
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* @return string Updated img tag
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*/
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private function process_image_url($matches) {
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if (empty($matches[1])) {
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return $matches[0];
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}
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$url = $matches[1];
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// Skip if already a local URL
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if ($this->is_local_url($url)) {
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return $matches[0];
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}
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try {
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$local_url = $this->upload_image($url);
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if ($local_url) {
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return str_replace($url, $local_url, $matches[0]);
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}
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} catch (Exception $e) {
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// Fire both actions for backward compatibility
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do_action('wp_seoprostack_image_upload_error', $url, $e->getMessage());
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do_action('wp_allstars_image_upload_error', $url, $e->getMessage());
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}
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return $matches[0];
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}
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/**
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* Check if URL is local
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*
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* @param string $url URL to check
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* @return boolean
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*/
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private function is_local_url($url) {
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$site_url = parse_url(get_site_url(), PHP_URL_HOST);
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$image_host = parse_url($url, PHP_URL_HOST);
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return $site_url === $image_host;
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}
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/**
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* Upload external image to media library
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*
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* @param string $url External image URL
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* @return string|false Local URL on success, false on failure
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*/
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private function upload_image($url) {
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// Get file info
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$file_array = array();
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$file_array['name'] = basename($url);
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// Download file to temp location
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$file_array['tmp_name'] = download_url($url);
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if (is_wp_error($file_array['tmp_name'])) {
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throw new Exception('Failed to download image: ' . $file_array['tmp_name']->get_error_message());
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}
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// Check file type
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$wp_filetype = wp_check_filetype_and_ext($file_array['tmp_name'], $file_array['name']);
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if (!$wp_filetype['type']) {
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unlink($file_array['tmp_name']);
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throw new Exception('Invalid file type');
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}
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// Upload the file
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$attachment_id = media_handle_sideload($file_array, 0);
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if (is_wp_error($attachment_id)) {
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throw new Exception('Failed to upload image: ' . $attachment_id->get_error_message());
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}
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return wp_get_attachment_url($attachment_id);
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}
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/**
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* Log errors to WordPress debug log
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*
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* @param string $url URL that failed
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* @param string $error Error message
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*/
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public function log_error($url, $error) {
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error_log(sprintf(
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'[SEO Pro Stack] Auto Upload Images Error - URL: %s, Error: %s',
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$url,
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$error
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));
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}
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} |