324 lines
15 KiB
TypeScript
324 lines
15 KiB
TypeScript
import { getDb } from '../database/database';
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import { localTimestamp, formatLocalDateTime } from '../utils/time';
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import { getSystemConfig } from '../admin/system-config.service';
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import { QuarkDriver } from './drivers/quark.driver';
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import { BaiduDriver } from './drivers/baidu.driver';
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import { CloudConfig, getAndValidateCredential, getActiveCloudConfigs } from './credential.service';
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import { lookupIpLocation } from './ip-lookup';
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/** In-flight save dedup: prevents concurrent saves of the same URL (race condition fix) */
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const inFlightSaves = new Map<string, Promise<SaveResult>>();
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export interface SaveResult {
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success: boolean;
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shareUrl?: string;
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share_url?: string;
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sharePwd?: string;
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folderName?: string;
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message: string;
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file_count?: number;
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folder_count?: number;
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duration_ms?: number;
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}
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export interface SaveRecord {
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id: number;
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source_type: string;
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source_title: string | null;
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source_url: string;
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target_cloud: string;
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share_url: string | null;
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share_pwd: string | null;
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file_size: string | null;
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file_count: number;
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folder_count: number;
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duration_ms: number;
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status: string;
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error_message: string | null;
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folder_name: string | null;
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original_folder_name: string | null;
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ip_address: string | null;
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ip_location: string | null;
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created_at: string;
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}
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/** Core save logic extracted so inFlight dedup can wrap it */
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async function doSaveFromShare(shareUrl: string, cloudType: string, sourceTitle?: string, ipAddress?: string): Promise<SaveResult> {
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const db = getDb();
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const ipLocation = await lookupIpLocation(ipAddress || '');
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// ── Short-term dedup: prevent duplicate saves of the same URL within 60 seconds ──
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const DEDUP_WINDOW_SEC = 60;
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let dedupCutoff = '';
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try {
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const recentCutoff = db.prepare(
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`SELECT datetime('now','localtime', '-${DEDUP_WINDOW_SEC} seconds') as cutoff`
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).get() as { cutoff: string };
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dedupCutoff = recentCutoff.cutoff;
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const recentRecord = db.prepare(
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`SELECT share_url, share_pwd, status, error_message, folder_name, original_folder_name FROM save_records
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WHERE source_url = ? AND created_at >= ?
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ORDER BY created_at DESC LIMIT 1`
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).get(shareUrl, dedupCutoff) as {
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share_url: string | null; share_pwd: string | null; status: string;
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error_message: string | null; folder_name: string | null; original_folder_name: string | null;
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} | undefined;
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if (recentRecord) {
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const alreadySaved = recentRecord.status === 'success' || recentRecord.status === 'reused';
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if (alreadySaved && recentRecord.share_url) {
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console.log(`[Share] 🛡️ Dedup: ${shareUrl} was saved ${DEDUP_WINDOW_SEC}s ago (status=${recentRecord.status}), returning existing share link`);
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db.prepare(
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`INSERT INTO save_records (source_type, source_title, source_url, target_cloud, share_url, share_pwd, file_size, file_count, folder_count, duration_ms, status, error_message, folder_name, original_folder_name, ip_address, ip_location, created_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
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).run(
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cloudType, sourceTitle || null, shareUrl, cloudType,
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recentRecord.share_url, recentRecord.share_pwd || null,
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null, 0, 0, 0, 'reused', null,
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recentRecord.folder_name || null, recentRecord.original_folder_name || null,
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ipAddress || null, ipLocation, localTimestamp(),
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);
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return {
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success: true,
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message: `🛡️ 此资源刚在 ${DEDUP_WINDOW_SEC} 秒内转存过，直接返回已有分享链接`,
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share_url: recentRecord.share_url, shareUrl: recentRecord.share_url,
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sharePwd: recentRecord.share_pwd || '', folderName: '',
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file_count: 0, folder_count: 0, duration_ms: 0,
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};
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}
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}
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} catch (err: any) {
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console.log(`[Share] Dedup check failed: ${err.message}, proceeding with normal save`);
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}
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// ── Share link reuse: if same source URL was already saved successfully, validate and reuse ──
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const reuseEnabled = getSystemConfig('save_reuse_enabled');
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if (reuseEnabled !== 'false') {
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try {
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const existing = db.prepare(
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`SELECT share_url, share_pwd, folder_name, original_folder_name FROM save_records
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WHERE source_url = ? AND status IN ('success', 'reused') AND share_url IS NOT NULL AND share_url != ''
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ORDER BY created_at DESC LIMIT 1`
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).get(shareUrl) as { share_url: string; share_pwd: string; folder_name: string | null; original_folder_name: string | null } | undefined;
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if (existing?.share_url) {
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const { LinkValidator } = await import('../validation/link-validator.service');
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const validator = new LinkValidator();
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const validation = await validator.validate(existing.share_url, 'quark');
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if (validation.status === 'valid') {
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const isFirstReuse = dedupCutoff ? !db.prepare(
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`SELECT 1 FROM save_records WHERE source_url = ? AND created_at >= ? AND status = 'reused' LIMIT 1`
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).get(shareUrl, dedupCutoff) : true;
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const reuseStatus = isFirstReuse ? 'success' : 'reused';
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const reuseMsg = isFirstReuse
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? `♻️ 检测到此资源之前已转存过，直接复用已存在的分享链接`
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: `♻️ 短时间内重复请求，复用已有分享链接`;
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console.log(`[Share] ♻️ Reusing existing share link for ${shareUrl}: ${existing.share_url} (firstReuse=${isFirstReuse})`);
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db.prepare(
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`INSERT INTO save_records (source_type, source_title, source_url, target_cloud, share_url, share_pwd, file_size, file_count, folder_count, duration_ms, status, error_message, folder_name, original_folder_name, ip_address, ip_location, created_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
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).run(
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cloudType, sourceTitle || null, shareUrl, cloudType,
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existing.share_url, existing.share_pwd || null,
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null, 0, 0, 0, reuseStatus, null,
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existing.folder_name || null, existing.original_folder_name || null,
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ipAddress || null, ipLocation, localTimestamp(),
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);
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return {
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success: true, message: reuseMsg,
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share_url: existing.share_url, shareUrl: existing.share_url,
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sharePwd: existing.share_pwd || '', folderName: '',
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file_count: 0, folder_count: 0, duration_ms: 0,
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};
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}
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console.log(`[Share] Existing share link for ${shareUrl} is invalid/expired, will re-save`);
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}
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} catch (err: any) {
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console.log(`[Share] Link reuse check failed: ${err.message}, proceeding with normal save`);
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}
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}
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// ── Unified credential validation ──
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const credential = await getAndValidateCredential(cloudType);
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if (!credential.valid || !credential.config) {
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return { success: false, message: credential.message };
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}
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const config = credential.config;
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// ── Check transfer enabled ──
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if (config.is_transfer_enabled === 0) {
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return { success: false, message: `${config.nickname || cloudType} 的转存功能已关闭，请先在后台开启` };
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}
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const startTime = Date.now();
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try {
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let driverResult: { success: boolean; message: string; shareUrl?: string; sharePwd?: string; folderName?: string; fileCount?: number; folderCount?: number; originalFolderName?: string };
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switch (cloudType) {
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case 'quark': {
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const driver = new QuarkDriver({ cookie: config.cookie!, nickname: config.nickname });
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driverResult = await driver.saveFromShare(shareUrl, sourceTitle);
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break;
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}
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case 'baidu': {
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const driver = new BaiduDriver({ cookie: config.cookie!, nickname: config.nickname });
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driverResult = await driver.saveFromShare(shareUrl, sourceTitle);
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break;
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}
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case 'aliyun':
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return { success: false, message: '阿里云盘保存功能暂未实现' };
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default:
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return { success: false, message: `暂不支持 ${cloudType} 的保存功能` };
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}
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const durationMs = Date.now() - startTime;
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if (driverResult.success) {
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db.prepare(
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`UPDATE cloud_configs SET last_used_at = datetime('now','localtime'), total_saves = total_saves + 1, consecutive_failures = 0 WHERE id = ?`
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).run(config.id);
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} else if ((driverResult as any).cookieExpired) {
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// Cookie expired — don't count as failure, user needs to re-login
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} else {
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db.prepare(
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`UPDATE cloud_configs SET consecutive_failures = consecutive_failures + 1 WHERE id = ?`
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).run(config.id);
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}
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db.prepare(
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`INSERT INTO save_records (source_type, source_title, source_url, target_cloud, share_url, share_pwd, file_size, file_count, folder_count, duration_ms, status, error_message, folder_name, original_folder_name, ip_address, ip_location, created_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
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).run(
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cloudType, sourceTitle || driverResult.folderName || null, shareUrl, cloudType,
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driverResult.shareUrl || null, driverResult.sharePwd || null,
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null, driverResult.fileCount || 0, driverResult.folderCount || 0,
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durationMs, driverResult.success ? 'success' : 'failed',
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driverResult.success ? null : driverResult.message,
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driverResult.folderName || null, driverResult.originalFolderName || null,
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ipAddress || null, ipLocation, localTimestamp(),
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);
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return {
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success: driverResult.success,
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message: driverResult.message,
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share_url: driverResult.shareUrl || '',
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shareUrl: driverResult.shareUrl,
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sharePwd: (driverResult as any).sharePwd || '',
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folderName: driverResult.folderName || '',
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file_count: driverResult.fileCount || 0,
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folder_count: driverResult.folderCount || 0,
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duration_ms: durationMs,
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};
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} catch (err: any) {
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const durationMs = Date.now() - startTime;
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const errorMessage = err.message || 'Failed to save to cloud';
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db.prepare(
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`UPDATE cloud_configs SET consecutive_failures = consecutive_failures + 1 WHERE id = ?`
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).run(config.id);
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db.prepare(
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`INSERT INTO save_records (source_type, source_url, target_cloud, duration_ms, status, error_message, ip_address, ip_location, created_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`
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).run(cloudType, shareUrl, cloudType, durationMs, 'failed', errorMessage, ipAddress || null, ipLocation, localTimestamp());
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return { success: false, message: errorMessage };
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}
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}
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export async function saveFromShare(shareUrl: string, cloudType: string, sourceTitle?: string, ipAddress?: string): Promise<SaveResult> {
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const key = `${cloudType}:${shareUrl}`;
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const inflight = inFlightSaves.get(key);
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if (inflight) {
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console.log(`[Share] ⏳ In-flight: ${shareUrl} — another save is already running, awaiting result`);
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return inflight;
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}
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const promise = doSaveFromShare(shareUrl, cloudType, sourceTitle, ipAddress);
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inFlightSaves.set(key, promise);
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try {
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return await promise;
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} finally {
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inFlightSaves.delete(key);
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}
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}
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// ── Save Records ──────────────────────────────────────────────────
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export function getSaveRecords(page: number = 1, pageSize: number = 20, startDate?: string, endDate?: string, status?: string, sourceType?: string, keyword?: string): { total: number; records: SaveRecord[]; summary?: { total: number; success: number; failed: number; reused: number } } {
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const db = getDb();
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const offset = (page - 1) * pageSize;
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const conditions: string[] = [];
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const params: any[] = [];
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const summaryConditions: string[] = [];
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const summaryParams: any[] = [];
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if (startDate) {
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conditions.push('created_at >= ?'); params.push(startDate);
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summaryConditions.push('created_at >= ?'); summaryParams.push(startDate);
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}
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if (endDate) {
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conditions.push('created_at < ?'); params.push(endDate);
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summaryConditions.push('created_at < ?'); summaryParams.push(endDate);
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}
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if (status) { conditions.push('status = ?'); params.push(status); }
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if (sourceType) {
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conditions.push('source_type = ?'); params.push(sourceType);
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summaryConditions.push('source_type = ?'); summaryParams.push(sourceType);
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}
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if (keyword) { conditions.push('source_title LIKE ?'); params.push(`%${keyword}%`); }
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const where = conditions.length > 0 ? 'WHERE ' + conditions.join(' AND ') : '';
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const total = (db.prepare(`SELECT COUNT(*) as count FROM save_records ${where}`).get(...params) as any).count;
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const records = db.prepare(
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`SELECT * FROM save_records ${where} ORDER BY created_at DESC LIMIT ? OFFSET ?`
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).all(...params, pageSize, offset) as SaveRecord[];
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const summaryWhere = summaryConditions.length > 0 ? 'WHERE ' + summaryConditions.join(' AND ') : '';
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const summaryRows = db.prepare(
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`SELECT status, COUNT(*) as cnt FROM save_records ${summaryWhere} GROUP BY status`
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).all(...summaryParams) as { status: string; cnt: number }[];
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let sumTotal = 0, sumSuccess = 0, sumFailed = 0, sumReused = 0;
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for (const r of summaryRows) {
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sumTotal += r.cnt;
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if (r.status === 'success') sumSuccess = r.cnt;
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else if (r.status === 'failed') sumFailed = r.cnt;
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else if (r.status === 'reused') sumReused = r.cnt;
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}
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const summary = { total: sumTotal, success: sumSuccess, failed: sumFailed, reused: sumReused };
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return { total, records, summary };
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}
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export function cleanupOldSaveRecords(): void {
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const db = getDb();
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const cutoff = formatLocalDateTime(new Date(Date.now() - 60 * 24 * 60 * 60 * 1000));
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const deleted = db.prepare('DELETE FROM save_records WHERE created_at < ?').run(cutoff);
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console.log(`[Cleanup] Deleted ${deleted.changes} save records older than 60 days (before ${cutoff})`);
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}
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// ── Storage Refresh ───────────────────────────────────────────────
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export async function refreshAllStorageInfo(): Promise<void> {
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const configs = getActiveCloudConfigs().filter(c => c.cloud_type === 'quark' && c.cookie);
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if (configs.length === 0) return;
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for (const cfg of configs) {
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try {
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const { QuarkDriver } = require('./drivers/quark.driver');
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const driver = new QuarkDriver({ cookie: cfg.cookie, nickname: cfg.nickname });
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const storage = await driver.getStorageInfo();
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if (storage.totalBytes > 0 || storage.usedBytes > 0) {
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const db = getDb();
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db.prepare(
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`UPDATE cloud_configs SET storage_used = ?, storage_total = ? WHERE id = ?`
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).run(storage.used, storage.total, cfg.id);
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}
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} catch (err: any) {
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console.error(`[Storage] Failed to refresh quark#${cfg.id}:`, err.message);
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}
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}
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}
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