import { HostConfig } from "../types.js";
import { SSHService } from "./ssh-service.js";
import { SSHConnectionPoolImpl } from "./ssh-pool.js";
/**
* Temporary global SSH service for backward compatibility
* @deprecated Use ServiceContainer.getSSHService() instead
*/
let globalSSHService: SSHService | null = null;
// eslint-disable-next-line @typescript-eslint/no-unused-vars
function getGlobalSSHService(): SSHService {
if (!globalSSHService) {
const pool = new SSHConnectionPoolImpl({
maxConnections: parseInt(process.env.HOMELAB_SSH_MAX_CONNECTIONS || "5", 10),
idleTimeoutMs: parseInt(process.env.HOMELAB_SSH_IDLE_TIMEOUT_MS || "60000", 10),
connectionTimeoutMs: parseInt(process.env.HOMELAB_SSH_CONNECTION_TIMEOUT_MS || "5000", 10),
enableHealthChecks: process.env.HOMELAB_SSH_ENABLE_HEALTH_CHECKS !== "false",
healthCheckIntervalMs: parseInt(process.env.HOMELAB_SSH_HEALTH_CHECK_INTERVAL_MS || "30000", 10)
});
globalSSHService = new SSHService(pool);
}
return globalSSHService;
}
/**
* Sanitize string for safe shell usage
* Rejects any potentially dangerous characters
*/
export function sanitizeForShell(input: string): string {
// Only allow alphanumeric, dots, hyphens, underscores, and forward slashes (for paths)
if (!/^[a-zA-Z0-9._\-/]+$/.test(input)) {
throw new Error(`Invalid characters in input: ${input}`);
}
return input;
}
/**
* Validate host configuration for SSH
*/
export function validateHostForSsh(host: HostConfig): void {
// Validate hostname/IP - allow alphanumeric, dots, hyphens, colons (IPv6), and brackets
if (host.host && !/^[a-zA-Z0-9.\-:[\]/]+$/.test(host.host)) {
throw new Error(`Invalid host format: ${host.host}`);
}
// Validate SSH user if provided
if (host.sshUser && !/^[a-zA-Z0-9_-]+$/.test(host.sshUser)) {
throw new Error(`Invalid SSH user: ${host.sshUser}`);
}
// Validate key path if provided
if (host.sshKeyPath && !/^[a-zA-Z0-9._\-/~]+$/.test(host.sshKeyPath)) {
throw new Error(`Invalid SSH key path: ${host.sshKeyPath}`);
}
}
/**
* Host resource stats from SSH
*/
export interface HostResources {
hostname: string;
uptime: string;
loadAverage: [number, number, number];
cpu: {
cores: number;
usagePercent: number;
};
memory: {
totalMB: number;
usedMB: number;
freeMB: number;
usagePercent: number;
};
disk: Array<{
filesystem: string;
mount: string;
totalGB: number;
usedGB: number;
availGB: number;
usagePercent: number;
}>;
}
