Files
Netcatty/application/state/sftp/sharedRemoteHostCache.ts
2026-06-12 14:40:22 +08:00

53 lines
1.4 KiB
TypeScript

import type { SftpFileEntry, SftpFilenameEncoding } from "../../../domain/models";
export interface SharedRemoteHostCacheEntry {
path: string;
homeDir: string;
files: SftpFileEntry[];
filenameEncoding: SftpFilenameEncoding;
updatedAt: number;
}
const SHARED_REMOTE_HOST_CACHE_TTL_MS = 60_000;
const sharedRemoteHostCache = new Map<string, SharedRemoteHostCacheEntry>();
/**
* Build a cache key that includes connection details so that the same host ID
* with different session-time overrides (port, protocol) uses separate entries.
*/
export const buildCacheKey = (
hostId: string,
hostname?: string,
port?: number,
protocol?: string,
sftpSudo?: boolean,
username?: string,
): string => {
return `${hostId}:${hostname ?? ''}:${port ?? ''}:${protocol ?? ''}:${sftpSudo ? 'sudo' : ''}:${username ?? ''}`;
};
export const getSharedRemoteHostCache = (
cacheKey: string,
): SharedRemoteHostCacheEntry | null => {
const entry = sharedRemoteHostCache.get(cacheKey);
if (!entry) return null;
if (Date.now() - entry.updatedAt > SHARED_REMOTE_HOST_CACHE_TTL_MS) {
sharedRemoteHostCache.delete(cacheKey);
return null;
}
return entry;
};
export const setSharedRemoteHostCache = (
cacheKey: string,
entry: Omit<SharedRemoteHostCacheEntry, "updatedAt">,
): void => {
sharedRemoteHostCache.set(cacheKey, {
...entry,
updatedAt: Date.now(),
});
};