v2.2.0

worker.php

@@ -0,0 +1,146 @@
+#!/usr/bin/env php
+<?php
+/**
+ * Newsletter Queue Worker
+ *
+ * Processes queued emails via wp_mail() using configured SMTP settings.
+ *
+ * This script runs as a standalone CLI process, independent of WordPress cron.
+ * It loads WordPress with DOING_CRON defined to prevent triggering actual cron.
+ *
+ * Usage: php worker.php <batch_size> <worker_id>
+ * Example: php worker.php 10 "w1"
+ * Parallel: seq 1 10 | xargs -P10 -I{} php worker.php 10 "w{}"
+ *
+ * @package ROBOTSTXT_SMTP_Newsletter
+ * @since 2.2.0
+ */
+
+// Security: CLI-only execution.
+if ( php_sapi_name() !== 'cli' ) {
+	http_response_code( 403 );
+	die( 'Forbidden: This script must be run from command line' );
+}
+
+// Parse command-line arguments.
+if ( $argc < 3 ) {
+	fwrite( STDERR, "Usage: php worker.php <batch_size> <worker_id>\n" );
+	fwrite( STDERR, "Example: php worker.php 10 \"w1\"\n" );
+	exit( 1 );
+}
+
+$batch_size = max( 1, (int) $argv[1] );
+$worker_id  = $argv[2];
+
+// Load WordPress.
+define( 'DOING_CRON', true );
+
+// Find wp-load.php (3 levels up from plugin directory).
+$wp_load_path = __DIR__ . '/../../../wp-load.php';
+
+if ( ! file_exists( $wp_load_path ) ) {
+	fwrite( STDERR, "Error: Could not find wp-load.php at {$wp_load_path}\n" );
+	exit( 1 );
+}
+
+require_once $wp_load_path;
+
+// Verify plugin is active.
+if ( ! defined( 'ROBOTSTXT_SMTP_NEWSLETTER_VERSION' ) ) {
+	fwrite( STDERR, "Error: Newsletter SMTP plugin is not active\n" );
+	exit( 1 );
+}
+
+// Get queue and statistics instances.
+$queue = \Robotstxt_SMTP_Newsletter\Queue::get_instance();
+$stats = \Robotstxt_SMTP_Newsletter\Statistics::get_instance();
+
+// Process batch.
+$items = $queue->get_and_lock_batch( $batch_size, $worker_id );
+
+if ( empty( $items ) ) {
+	echo "No items to process\n";
+	exit( 0 );
+}
+
+echo sprintf( "Worker %s: Processing %d emails...\n", $worker_id, count( $items ) );
+
+$success_count = 0;
+$failure_count = 0;
+
+foreach ( $items as $item ) {
+	try {
+		// Build headers array.
+		$headers = array();
+
+		// Add From header if specified.
+		if ( ! empty( $item->from_email ) ) {
+			$from = ! empty( $item->from_name )
+				? sprintf( '%s <%s>', $item->from_name, $item->from_email )
+				: $item->from_email;
+			$headers[] = 'From: ' . $from;
+		}
+
+		// Add Reply-To header if specified.
+		if ( ! empty( $item->reply_to ) ) {
+			$headers[] = 'Reply-To: ' . $item->reply_to;
+		}
+
+		// Add Content-Type header (prefer HTML if available).
+		if ( ! empty( $item->body_html ) ) {
+			$headers[] = 'Content-Type: text/html; charset=UTF-8';
+		}
+
+		// Decode and add custom headers from JSON.
+		if ( ! empty( $item->headers_json ) ) {
+			$custom = json_decode( $item->headers_json, true );
+			if ( is_array( $custom ) ) {
+				foreach ( $custom as $key => $value ) {
+					$headers[] = sprintf( '%s: %s', $key, $value );
+				}
+			}
+		}
+
+		// Select body (prefer HTML over text).
+		$body = ! empty( $item->body_html ) ? $item->body_html : $item->body_text;
+
+		if ( empty( $body ) ) {
+			throw new \Exception( 'Email body is empty' );
+		}
+
+		// Send via wp_mail (uses core SMTP configuration).
+		$result = wp_mail(
+			$item->to_email,
+			$item->subject,
+			$body,
+			$headers
+		);
+
+		if ( $result ) {
+			$queue->mark_sent( $item->id );
+			$success_count++;
+			echo sprintf( "  ✓ Sent: %s\n", $item->to_email );
+		} else {
+			$queue->mark_failed( $item->id, 'wp_mail returned false' );
+			$failure_count++;
+			echo sprintf( "  ✗ Failed: %s (wp_mail returned false)\n", $item->to_email );
+		}
+
+	} catch ( \Exception $e ) {
+		$queue->mark_failed( $item->id, $e->getMessage() );
+		$failure_count++;
+		echo sprintf( "  ✗ Error: %s - %s\n", $item->to_email, $e->getMessage() );
+	}
+}
+
+// Sync statistics after batch processing.
+$stats->sync_from_queue();
+
+echo sprintf(
+	"Worker %s: Done. Success: %d, Failed: %d\n",
+	$worker_id,
+	$success_count,
+	$failure_count
+);
+
+exit( 0 );