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<?php
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/**
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* SMTP服务器入口文件
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*/
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require_once __DIR__ . '/SmtpServer.php';
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require_once __DIR__ . '/../utils/Config.php';
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require_once __DIR__ . '/../utils/Logger.php';
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// 解析命令行参数
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$options = getopt("h:p:m:", ["host:", "port:", "max-connections:", "help"]);
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// 显示帮助信息
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if (isset($options['help'])) {
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echo "SMTP Server Usage:\n";
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echo "php index.php [options]\n";
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echo "Options:\n";
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echo " -h, --host <host> Listen host (default: 0.0.0.0)\n";
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echo " -p, --port <port> Listen port (default: 25)\n";
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echo " -m, --max-connections <num> Maximum connections (default: 100)\n";
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echo " --help Show this help message\n";
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exit(0);
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}
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// 从配置文件获取默认值
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$config = Config::getInstance();
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$host = $options['h'] ?? $options['host'] ?? $config->get('smtp.host', '0.0.0.0');
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$port = $options['p'] ?? $options['port'] ?? $config->get('smtp.port', 25);
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$maxConnections = $options['m'] ?? $options['max-connections'] ?? $config->get('smtp.max_connections', 100);
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// 转换端口和最大连接数为整数
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$port = (int)$port;
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$maxConnections = (int)$maxConnections;
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// 验证参数
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if ($port < 1 || $port > 65535) {
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echo "Invalid port number: $port\n";
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exit(1);
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}
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if ($maxConnections < 1 || $maxConnections > 1000) {
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echo "Invalid maximum connections: $maxConnections\n";
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exit(1);
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}
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// 创建并启动SMTP服务器
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$server = new SmtpServer($host, $port, $maxConnections);
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echo "Starting SMTP Server on $host:$port...\n";
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echo "Maximum connections: $maxConnections\n";
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echo "Press Ctrl+C to stop the server\n\n";
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// 捕获Ctrl+C信号，优雅关闭服务器（仅在支持PCNTL的系统上）
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if (function_exists('pcntl_signal')) {
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declare(ticks = 1);
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pcntl_signal(SIGINT, function() use ($server) {
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echo "\nStopping SMTP Server...\n";
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$server->stop();
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exit(0);
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});
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}
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// 启动服务器
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if (!$server->start()) {
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echo "Failed to start SMTP Server\n";
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exit(1);
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}
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