changing routes and hierarchy of files for memories

server/src/services/memories/helpersService.ts

@@ -0,0 +1,79 @@
+import { canAccessTrip, db } from "../../db/database";
+
+// helpers for handling return types
+
+type ServiceError = { success: false; error: { message: string; status: number } };
+export type ServiceResult<T> = { success: true; data: T } | ServiceError;
+
+
+export function fail(error: string, status: number): ServiceError {
+    return { success: false, error: { message: error, status } };
+}
+
+
+export function success<T>(data: T): ServiceResult<T> {
+    return { success: true, data: data };
+}
+
+
+export function mapDbError(error: unknown, fallbackMessage: string): ServiceError {
+    if (error instanceof Error && /unique|constraint/i.test(error.message)) {
+        return fail('Resource already exists', 409);
+    }
+    return fail(fallbackMessage, 500);
+}
+
+
+// ----------------------------------------------
+// types used across memories services
+export type Selection = {
+    provider: string;
+    asset_ids: string[];
+};
+
+
+//-----------------------------------------------
+//access check helper
+
+export function canAccessUserPhoto(requestingUserId: number, ownerUserId: number, tripId: string, assetId: string, provider: string): boolean {
+    if (requestingUserId === ownerUserId) {
+        return true;
+    }
+    const sharedAsset = db.prepare(`
+    SELECT 1
+    FROM trip_photos
+    WHERE user_id = ?
+      AND asset_id = ?
+      AND provider = ?
+      AND trip_id = ?
+      AND shared = 1
+    LIMIT 1
+    `).get(ownerUserId, assetId, provider, tripId);
+
+    if (!sharedAsset) {
+        return false;
+    }
+    return !!canAccessTrip(tripId, requestingUserId);
+}
+
+
+// ----------------------------------------------
+//helpers for album link syncing
+
+export function getAlbumIdFromLink(tripId: string, linkId: string, userId: number): ServiceResult<string> {
+    const access = canAccessTrip(tripId, userId);
+    if (!access) return fail('Trip not found or access denied', 404);
+
+    try {
+        const row = db.prepare('SELECT album_id FROM trip_album_links WHERE id = ? AND trip_id = ? AND user_id = ?')
+            .get(linkId, tripId, userId) as { album_id: string } | null;
+
+        return row ? success(row.album_id) : fail('Album link not found', 404);
+    } catch {
+        return fail('Failed to retrieve album link', 500);
+    }
+}
+
+export function updateSyncTimeForAlbumLink(linkId: string): void {
+    db.prepare('UPDATE trip_album_links SET last_synced_at = CURRENT_TIMESTAMP WHERE id = ?').run(linkId);
+}

server/src/services/memories/immichService.ts

@@ -0,0 +1,347 @@
+import { db } from '../../db/database';
+import { maybe_encrypt_api_key, decrypt_api_key } from '../apiKeyCrypto';
+import { checkSsrf } from '../../utils/ssrfGuard';
+import { writeAudit } from '../auditLog';
+import { addTripPhotos} from './unifiedService';
+import { getAlbumIdFromLink, updateSyncTimeForAlbumLink, Selection } from './helpersService';
+
+// ── Credentials ────────────────────────────────────────────────────────────
+
+export function getImmichCredentials(userId: number) {
+  const user = db.prepare('SELECT immich_url, immich_api_key FROM users WHERE id = ?').get(userId) as any;
+  if (!user?.immich_url || !user?.immich_api_key) return null;
+  return { immich_url: user.immich_url as string, immich_api_key: decrypt_api_key(user.immich_api_key) as string };
+}
+
+/** Validate that an asset ID is a safe UUID-like string (no path traversal). */
+export function isValidAssetId(id: string): boolean {
+  return /^[a-zA-Z0-9_-]+$/.test(id) && id.length <= 100;
+}
+
+// ── Connection Settings ────────────────────────────────────────────────────
+
+export function getConnectionSettings(userId: number) {
+  const creds = getImmichCredentials(userId);
+  return {
+    immich_url: creds?.immich_url || '',
+    connected: !!(creds?.immich_url && creds?.immich_api_key),
+  };
+}
+
+export async function saveImmichSettings(
+  userId: number,
+  immichUrl: string | undefined,
+  immichApiKey: string | undefined,
+  clientIp: string | null
+): Promise<{ success: boolean; warning?: string; error?: string }> {
+  if (immichUrl) {
+    const ssrf = await checkSsrf(immichUrl.trim());
+    if (!ssrf.allowed) {
+      return { success: false, error: `Invalid Immich URL: ${ssrf.error}` };
+    }
+    db.prepare('UPDATE users SET immich_url = ?, immich_api_key = ? WHERE id = ?').run(
+      immichUrl.trim(),
+      maybe_encrypt_api_key(immichApiKey),
+      userId
+    );
+    if (ssrf.isPrivate) {
+      writeAudit({
+        userId,
+        action: 'immich.private_ip_configured',
+        ip: clientIp,
+        details: { immich_url: immichUrl.trim(), resolved_ip: ssrf.resolvedIp },
+      });
+      return {
+        success: true,
+        warning: `Immich URL resolves to a private IP address (${ssrf.resolvedIp}). Make sure this is intentional.`,
+      };
+    }
+  } else {
+    db.prepare('UPDATE users SET immich_url = ?, immich_api_key = ? WHERE id = ?').run(
+      null,
+      maybe_encrypt_api_key(immichApiKey),
+      userId
+    );
+  }
+  return { success: true };
+}
+
+// ── Connection Test / Status ───────────────────────────────────────────────
+
+export async function testConnection(
+  immichUrl: string,
+  immichApiKey: string
+): Promise<{ connected: boolean; error?: string; user?: { name?: string; email?: string }; canonicalUrl?: string }> {
+  const ssrf = await checkSsrf(immichUrl);
+  if (!ssrf.allowed) return { connected: false, error: ssrf.error ?? 'Invalid Immich URL' };
+  try {
+    const resp = await fetch(`${immichUrl}/api/users/me`, {
+      headers: { 'x-api-key': immichApiKey, 'Accept': 'application/json' },
+      signal: AbortSignal.timeout(10000),
+    });
+    if (!resp.ok) return { connected: false, error: `HTTP ${resp.status}` };
+    const data = await resp.json() as { name?: string; email?: string };
+
+    // Detect http → https upgrade only: same host/port, protocol changed to https
+    let canonicalUrl: string | undefined;
+    if (resp.url) {
+      const finalUrl = new URL(resp.url);
+      const inputUrl = new URL(immichUrl);
+      if (
+        inputUrl.protocol === 'http:' &&
+        finalUrl.protocol === 'https:' &&
+        finalUrl.hostname === inputUrl.hostname &&
+        finalUrl.port === inputUrl.port
+      ) {
+        canonicalUrl = finalUrl.origin;
+      }
+    }
+
+    return { connected: true, user: { name: data.name, email: data.email }, canonicalUrl };
+  } catch (err: unknown) {
+    return { connected: false, error: err instanceof Error ? err.message : 'Connection failed' };
+  }
+}
+
+export async function getConnectionStatus(
+  userId: number
+): Promise<{ connected: boolean; error?: string; user?: { name?: string; email?: string } }> {
+  const creds = getImmichCredentials(userId);
+  if (!creds) return { connected: false, error: 'Not configured' };
+  try {
+    const resp = await fetch(`${creds.immich_url}/api/users/me`, {
+      headers: { 'x-api-key': creds.immich_api_key, 'Accept': 'application/json' },
+      signal: AbortSignal.timeout(10000),
+    });
+    if (!resp.ok) return { connected: false, error: `HTTP ${resp.status}` };
+    const data = await resp.json() as { name?: string; email?: string };
+    return { connected: true, user: { name: data.name, email: data.email } };
+  } catch (err: unknown) {
+    return { connected: false, error: err instanceof Error ? err.message : 'Connection failed' };
+  }
+}
+
+// ── Browse Timeline / Search ───────────────────────────────────────────────
+
+export async function browseTimeline(
+  userId: number
+): Promise<{ buckets?: any; error?: string; status?: number }> {
+  const creds = getImmichCredentials(userId);
+  if (!creds) return { error: 'Immich not configured', status: 400 };
+
+  try {
+    const resp = await fetch(`${creds.immich_url}/api/timeline/buckets`, {
+      method: 'GET',
+      headers: { 'x-api-key': creds.immich_api_key, 'Accept': 'application/json' },
+      signal: AbortSignal.timeout(15000),
+    });
+    if (!resp.ok) return { error: 'Failed to fetch from Immich', status: resp.status };
+    const buckets = await resp.json();
+    return { buckets };
+  } catch {
+    return { error: 'Could not reach Immich', status: 502 };
+  }
+}
+
+export async function searchPhotos(
+  userId: number,
+  from?: string,
+  to?: string
+): Promise<{ assets?: any[]; error?: string; status?: number }> {
+  const creds = getImmichCredentials(userId);
+  if (!creds) return { error: 'Immich not configured', status: 400 };
+
+  try {
+    // Paginate through all results (Immich limits per-page to 1000)
+    const allAssets: any[] = [];
+    let page = 1;
+    const pageSize = 1000;
+    while (true) {
+      const resp = await fetch(`${creds.immich_url}/api/search/metadata`, {
+        method: 'POST',
+        headers: { 'x-api-key': creds.immich_api_key, 'Content-Type': 'application/json' },
+        body: JSON.stringify({
+          takenAfter: from ? `${from}T00:00:00.000Z` : undefined,
+          takenBefore: to ? `${to}T23:59:59.999Z` : undefined,
+          type: 'IMAGE',
+          size: pageSize,
+          page,
+        }),
+        signal: AbortSignal.timeout(15000),
+      });
+      if (!resp.ok) return { error: 'Search failed', status: resp.status };
+      const data = await resp.json() as { assets?: { items?: any[] } };
+      const items = data.assets?.items || [];
+      allAssets.push(...items);
+      if (items.length < pageSize) break; // Last page
+      page++;
+      if (page > 20) break; // Safety limit (20k photos max)
+    }
+    const assets = allAssets.map((a: any) => ({
+      id: a.id,
+      takenAt: a.fileCreatedAt || a.createdAt,
+      city: a.exifInfo?.city || null,
+      country: a.exifInfo?.country || null,
+    }));
+    return { assets };
+  } catch {
+    return { error: 'Could not reach Immich', status: 502 };
+  }
+}
+
+
+// ── Asset Info / Proxy ─────────────────────────────────────────────────────
+
+
+export async function getAssetInfo(
+  userId: number,
+  assetId: string,
+  ownerUserId?: number
+): Promise<{ data?: any; error?: string; status?: number }> {
+  const effectiveUserId = ownerUserId ?? userId;
+  const creds = getImmichCredentials(effectiveUserId);
+  if (!creds) return { error: 'Not found', status: 404 };
+
+  try {
+    const resp = await fetch(`${creds.immich_url}/api/assets/${assetId}`, {
+      headers: { 'x-api-key': creds.immich_api_key, 'Accept': 'application/json' },
+      signal: AbortSignal.timeout(10000),
+    });
+    if (!resp.ok) return { error: 'Failed', status: resp.status };
+    const asset = await resp.json() as any;
+    return {
+      data: {
+        id: asset.id,
+        takenAt: asset.fileCreatedAt || asset.createdAt,
+        width: asset.exifInfo?.exifImageWidth || null,
+        height: asset.exifInfo?.exifImageHeight || null,
+        camera: asset.exifInfo?.make && asset.exifInfo?.model ? `${asset.exifInfo.make} ${asset.exifInfo.model}` : null,
+        lens: asset.exifInfo?.lensModel || null,
+        focalLength: asset.exifInfo?.focalLength ? `${asset.exifInfo.focalLength}mm` : null,
+        aperture: asset.exifInfo?.fNumber ? `f/${asset.exifInfo.fNumber}` : null,
+        shutter: asset.exifInfo?.exposureTime || null,
+        iso: asset.exifInfo?.iso || null,
+        city: asset.exifInfo?.city || null,
+        state: asset.exifInfo?.state || null,
+        country: asset.exifInfo?.country || null,
+        lat: asset.exifInfo?.latitude || null,
+        lng: asset.exifInfo?.longitude || null,
+        fileSize: asset.exifInfo?.fileSizeInByte || null,
+        fileName: asset.originalFileName || null,
+      },
+    };
+  } catch {
+    return { error: 'Proxy error', status: 502 };
+  }
+}
+
+export async function proxyThumbnail(
+  userId: number,
+  assetId: string,
+  ownerUserId?: number
+): Promise<{ buffer?: Buffer; contentType?: string; error?: string; status?: number }> {
+  const effectiveUserId = ownerUserId ?? userId;
+  const creds = getImmichCredentials(effectiveUserId);
+  if (!creds) return { error: 'Not found', status: 404 };
+
+  try {
+    const resp = await fetch(`${creds.immich_url}/api/assets/${assetId}/thumbnail`, {
+      headers: { 'x-api-key': creds.immich_api_key },
+      signal: AbortSignal.timeout(10000),
+    });
+    if (!resp.ok) return { error: 'Failed', status: resp.status };
+    const buffer = Buffer.from(await resp.arrayBuffer());
+    const contentType = resp.headers.get('content-type') || 'image/webp';
+    return { buffer, contentType };
+  } catch {
+    return { error: 'Proxy error', status: 502 };
+  }
+}
+
+export async function proxyOriginal(
+  userId: number,
+  assetId: string,
+  ownerUserId?: number
+): Promise<{ buffer?: Buffer; contentType?: string; error?: string; status?: number }> {
+  const effectiveUserId = ownerUserId ?? userId;
+  const creds = getImmichCredentials(effectiveUserId);
+  if (!creds) return { error: 'Not found', status: 404 };
+
+  try {
+    const resp = await fetch(`${creds.immich_url}/api/assets/${assetId}/original`, {
+      headers: { 'x-api-key': creds.immich_api_key },
+      signal: AbortSignal.timeout(30000),
+    });
+    if (!resp.ok) return { error: 'Failed', status: resp.status };
+    const buffer = Buffer.from(await resp.arrayBuffer());
+    const contentType = resp.headers.get('content-type') || 'image/jpeg';
+    return { buffer, contentType };
+  } catch {
+    return { error: 'Proxy error', status: 502 };
+  }
+}
+
+// ── Albums ──────────────────────────────────────────────────────────────────
+
+export async function listAlbums(
+  userId: number
+): Promise<{ albums?: any[]; error?: string; status?: number }> {
+  const creds = getImmichCredentials(userId);
+  if (!creds) return { error: 'Immich not configured', status: 400 };
+
+  try {
+    const resp = await fetch(`${creds.immich_url}/api/albums`, {
+      headers: { 'x-api-key': creds.immich_api_key, 'Accept': 'application/json' },
+      signal: AbortSignal.timeout(10000),
+    });
+    if (!resp.ok) return { error: 'Failed to fetch albums', status: resp.status };
+    const albums = (await resp.json() as any[]).map((a: any) => ({
+      id: a.id,
+      albumName: a.albumName,
+      assetCount: a.assetCount || 0,
+      startDate: a.startDate,
+      endDate: a.endDate,
+      albumThumbnailAssetId: a.albumThumbnailAssetId,
+    }));
+    return { albums };
+  } catch {
+    return { error: 'Could not reach Immich', status: 502 };
+  }
+}
+
+
+export async function syncAlbumAssets(
+  tripId: string,
+  linkId: string,
+  userId: number
+): Promise<{ success?: boolean; added?: number; total?: number; error?: string; status?: number }> {
+  const response = getAlbumIdFromLink(tripId, linkId, userId);
+  if (!response.success) return { error: 'Album link not found', status: 404 };
+
+  const creds = getImmichCredentials(userId);
+  if (!creds) return { error: 'Immich not configured', status: 400 };
+
+  try {
+    const resp = await fetch(`${creds.immich_url}/api/albums/${response.data}`, {
+      headers: { 'x-api-key': creds.immich_api_key, 'Accept': 'application/json' },
+      signal: AbortSignal.timeout(15000),
+    });
+    if (!resp.ok) return { error: 'Failed to fetch album', status: resp.status };
+    const albumData = await resp.json() as { assets?: any[] };
+    const assets = (albumData.assets || []).filter((a: any) => a.type === 'IMAGE');
+
+    const selection: Selection = {
+      provider: 'immich',
+      asset_ids: assets.map((a: any) => a.id),
+    };
+
+    const result = await addTripPhotos(tripId, userId, true, [selection]);
+    if ('error' in result) return { error: result.error.message, status: result.error.status };
+
+    updateSyncTimeForAlbumLink(linkId);
+
+    return { success: true, added: result.data.added, total: assets.length };
+  } catch {
+    return { error: 'Could not reach Immich', status: 502 };
+  }
+}

server/src/services/memories/synologyService.ts

@@ -0,0 +1,583 @@
+import { Readable } from 'node:stream';
+import { pipeline } from 'node:stream/promises';
+import { Response as ExpressResponse } from 'express';
+import { db } from '../../db/database';
+import { decrypt_api_key, maybe_encrypt_api_key } from '../apiKeyCrypto';
+import { checkSsrf } from '../../utils/ssrfGuard';
+import { addTripPhotos} from './unifiedService';
+import { getAlbumIdFromLink, updateSyncTimeForAlbumLink, Selection } from './helpersService';
+
+const SYNOLOGY_API_TIMEOUT_MS = 30000;
+const SYNOLOGY_PROVIDER = 'synologyphotos';
+const SYNOLOGY_ENDPOINT_PATH = '/photo/webapi/entry.cgi';
+const SYNOLOGY_DEFAULT_THUMBNAIL_SIZE = 'sm';
+
+interface SynologyCredentials {
+    synology_url: string;
+    synology_username: string;
+    synology_password: string;
+}
+
+interface SynologySession {
+    success: boolean;
+    sid?: string;
+    error?: { code: number; message?: string };
+}
+
+interface ApiCallParams {
+    api: string;
+    method: string;
+    version?: number;
+    [key: string]: unknown;
+}
+
+interface SynologyApiResponse<T> {
+    success: boolean;
+    data?: T;
+    error?: { code: number; message?: string };
+}
+
+export class SynologyServiceError extends Error {
+    status: number;
+
+    constructor(status: number, message: string) {
+        super(message);
+        this.status = status;
+    }
+}
+
+export interface SynologySettings {
+    synology_url: string;
+    synology_username: string;
+    connected: boolean;
+}
+
+export interface SynologyConnectionResult {
+    connected: boolean;
+    user?: { username: string };
+    error?: string;
+}
+
+export interface SynologyAlbumLinkInput {
+    album_id?: string | number;
+    album_name?: string;
+}
+
+export interface SynologySearchInput {
+    from?: string;
+    to?: string;
+    offset?: number;
+    limit?: number;
+}
+
+export interface SynologyProxyResult {
+    status: number;
+    headers: Record<string, string | null>;
+    body: ReadableStream<Uint8Array> | null;
+}
+
+interface SynologyPhotoInfo {
+    id: string;
+    takenAt: string | null;
+    city: string | null;
+    country: string | null;
+    state?: string | null;
+    camera?: string | null;
+    lens?: string | null;
+    focalLength?: string | number | null;
+    aperture?: string | number | null;
+    shutter?: string | number | null;
+    iso?: string | number | null;
+    lat?: number | null;
+    lng?: number | null;
+    orientation?: number | null;
+    description?: string | null;
+    filename?: string | null;
+    filesize?: number | null;
+    width?: number | null;
+    height?: number | null;
+    fileSize?: number | null;
+    fileName?: string | null;
+}
+
+interface SynologyPhotoItem {
+    id?: string | number;
+    filename?: string;
+    filesize?: number;
+    time?: number;
+    item_count?: number;
+    name?: string;
+    additional?: {
+        thumbnail?: { cache_key?: string };
+        address?: { city?: string; country?: string; state?: string };
+        resolution?: { width?: number; height?: number };
+        exif?: {
+            camera?: string;
+            lens?: string;
+            focal_length?: string | number;
+            aperture?: string | number;
+            exposure_time?: string | number;
+            iso?: string | number;
+        };
+        gps?: { latitude?: number; longitude?: number };
+        orientation?: number;
+        description?: string;
+    };
+}
+
+type SynologyUserRecord = {
+    synology_url?: string | null;
+    synology_username?: string | null;
+    synology_password?: string | null;
+    synology_sid?: string | null;
+};
+
+function readSynologyUser(userId: number, columns: string[]): SynologyUserRecord | null {
+    try {
+
+        if (!columns) return null;
+
+        const row = db.prepare(`SELECT synology_url, synology_username, synology_password, synology_sid FROM users WHERE id = ?`).get(userId) as SynologyUserRecord | undefined;
+
+        if (!row) return null;
+
+        const filtered: SynologyUserRecord = {};
+        for (const column of columns) {
+            filtered[column] = row[column];
+        }
+
+        return filtered || null;
+    } catch {
+        return null;
+    }
+}
+
+function getSynologyCredentials(userId: number): SynologyCredentials | null {
+    const user = readSynologyUser(userId, ['synology_url', 'synology_username', 'synology_password']);
+    if (!user?.synology_url || !user.synology_username || !user.synology_password) return null;
+    return {
+        synology_url: user.synology_url,
+        synology_username: user.synology_username,
+        synology_password: decrypt_api_key(user.synology_password) as string,
+    };
+}
+
+
+function buildSynologyEndpoint(url: string): string {
+    const normalized = url.replace(/\/$/, '').match(/^https?:\/\//) ? url.replace(/\/$/, '') : `https://${url.replace(/\/$/, '')}`;
+    return `${normalized}${SYNOLOGY_ENDPOINT_PATH}`;
+}
+
+function buildSynologyFormBody(params: ApiCallParams): URLSearchParams {
+    const body = new URLSearchParams();
+    for (const [key, value] of Object.entries(params)) {
+        if (value === undefined || value === null) continue;
+        body.append(key, typeof value === 'object' ? JSON.stringify(value) : String(value));
+    }
+    return body;
+}
+
+async function fetchSynologyJson<T>(url: string, body: URLSearchParams): Promise<SynologyApiResponse<T>> {
+    const endpoint = buildSynologyEndpoint(url);
+    const resp = await fetch(endpoint, {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
+        },
+        body,
+        signal: AbortSignal.timeout(SYNOLOGY_API_TIMEOUT_MS),
+    });
+
+    if (!resp.ok) {
+        const text = await resp.text();
+        return { success: false, error: { code: resp.status, message: text } };
+    }
+
+    return resp.json() as Promise<SynologyApiResponse<T>>;
+}
+
+async function loginToSynology(url: string, username: string, password: string): Promise<SynologyApiResponse<{ sid?: string }>> {
+    const body = new URLSearchParams({
+        api: 'SYNO.API.Auth',
+        method: 'login',
+        version: '3',
+        account: username,
+        passwd: password,
+    });
+
+    return fetchSynologyJson<{ sid?: string }>(url, body);
+}
+
+async function requestSynologyApi<T>(userId: number, params: ApiCallParams): Promise<SynologyApiResponse<T>> {
+    const creds = getSynologyCredentials(userId);
+    if (!creds) {
+        return { success: false, error: { code: 400, message: 'Synology not configured' } };
+    }
+
+    const session = await getSynologySession(userId);
+    if (!session.success || !session.sid) {
+        return { success: false, error: session.error || { code: 400, message: 'Failed to get Synology session' } };
+    }
+
+    const body = buildSynologyFormBody({ ...params, _sid: session.sid });
+    const result = await fetchSynologyJson<T>(creds.synology_url, body);
+    if (!result.success && result.error?.code === 119) {
+        clearSynologySID(userId);
+        const retrySession = await getSynologySession(userId);
+        if (!retrySession.success || !retrySession.sid) {
+            return { success: false, error: retrySession.error || { code: 400, message: 'Failed to get Synology session' } };
+        }
+        return fetchSynologyJson<T>(creds.synology_url, buildSynologyFormBody({ ...params, _sid: retrySession.sid }));
+    }
+    return result;
+}
+
+async function requestSynologyStream(url: string): Promise<globalThis.Response> {
+    return fetch(url, {
+        signal: AbortSignal.timeout(SYNOLOGY_API_TIMEOUT_MS),
+    });
+}
+
+function normalizeSynologyPhotoInfo(item: SynologyPhotoItem): SynologyPhotoInfo {
+    const address = item.additional?.address || {};
+    const exif = item.additional?.exif || {};
+    const gps = item.additional?.gps || {};
+
+    return {
+        id: String(item.additional?.thumbnail?.cache_key || ''),
+        takenAt: item.time ? new Date(item.time * 1000).toISOString() : null,
+        city: address.city || null,
+        country: address.country || null,
+        state: address.state || null,
+        camera: exif.camera || null,
+        lens: exif.lens || null,
+        focalLength: exif.focal_length || null,
+        aperture: exif.aperture || null,
+        shutter: exif.exposure_time || null,
+        iso: exif.iso || null,
+        lat: gps.latitude || null,
+        lng: gps.longitude || null,
+        orientation: item.additional?.orientation || null,
+        description: item.additional?.description || null,
+        filename: item.filename || null,
+        filesize: item.filesize || null,
+        width: item.additional?.resolution?.width || null,
+        height: item.additional?.resolution?.height || null,
+        fileSize: item.filesize || null,
+        fileName: item.filename || null,
+    };
+}
+
+export function handleSynologyError(res: ExpressResponse, err: unknown, fallbackMessage: string): ExpressResponse {
+    if (err instanceof SynologyServiceError) {
+        return res.status(err.status).json({ error: err.message });
+    }
+    return res.status(502).json({ error: err instanceof Error ? err.message : fallbackMessage });
+}
+
+function cacheSynologySID(userId: number, sid: string): void {
+    db.prepare('UPDATE users SET synology_sid = ? WHERE id = ?').run(sid, userId);
+}
+
+function clearSynologySID(userId: number): void {
+    db.prepare('UPDATE users SET synology_sid = NULL WHERE id = ?').run(userId);
+}
+
+function splitPackedSynologyId(rawId: string): { id: string; cacheKey: string; assetId: string } {
+    const id = rawId.split('_')[0];
+    return { id, cacheKey: rawId, assetId: rawId };
+}
+
+
+async function getSynologySession(userId: number): Promise<SynologySession> {
+    const cachedSid = readSynologyUser(userId, ['synology_sid'])?.synology_sid || null;
+    if (cachedSid) {
+        return { success: true, sid: cachedSid };
+    }
+    
+    const creds = getSynologyCredentials(userId);
+    if (!creds) {
+        return { success: false, error: { code: 400, message: 'Invalid Synology credentials' } };
+    }
+
+    const resp = await loginToSynology(creds.synology_url, creds.synology_username, creds.synology_password);
+
+    if (!resp.success || !resp.data?.sid) {
+        return { success: false, error: resp.error || { code: 400, message: 'Failed to authenticate with Synology' } };
+    }
+
+    cacheSynologySID(userId, resp.data.sid);
+    return { success: true, sid: resp.data.sid };
+}
+
+export async function getSynologySettings(userId: number): Promise<SynologySettings> {
+    const creds = getSynologyCredentials(userId);
+    const session = await getSynologySession(userId);
+    return {
+        synology_url: creds?.synology_url || '',
+        synology_username: creds?.synology_username || '',
+        connected: session.success,
+    };
+}
+
+export async function updateSynologySettings(userId: number, synologyUrl: string, synologyUsername: string, synologyPassword?: string): Promise<void> {
+
+    const ssrf = await checkSsrf(synologyUrl);
+    if (!ssrf.allowed) {
+        throw new SynologyServiceError(400, ssrf.error ?? 'Invalid Synology URL');
+    }
+
+    const existingEncryptedPassword = readSynologyUser(userId, ['synology_password'])?.synology_password || null;
+
+    if (!synologyPassword && !existingEncryptedPassword) {
+        throw new SynologyServiceError(400, 'No stored password found. Please provide a password to save settings.');
+    }
+
+    try {
+        db.prepare('UPDATE users SET synology_url = ?, synology_username = ?, synology_password = ? WHERE id = ?').run(
+            synologyUrl,
+            synologyUsername,
+            synologyPassword ? maybe_encrypt_api_key(synologyPassword) : existingEncryptedPassword,
+            userId,
+        );
+    } catch {
+        throw new SynologyServiceError(400, 'Failed to save settings');
+    }
+
+    clearSynologySID(userId);
+    await getSynologySession(userId);
+}
+
+export async function getSynologyStatus(userId: number): Promise<SynologyConnectionResult> {
+    try {
+        const sid = await getSynologySession(userId);
+        if (!sid.success || !sid.sid) {
+            return { connected: false, error: 'Authentication failed' };
+        }
+
+        const user = db.prepare('SELECT synology_username FROM users WHERE id = ?').get(userId) as { synology_username?: string } | undefined;
+        return { connected: true, user: { username: user?.synology_username || '' } };
+    } catch (err: unknown) {
+        return { connected: false, error: err instanceof Error ? err.message : 'Connection failed' };
+    }
+}
+
+export async function testSynologyConnection(synologyUrl: string, synologyUsername: string, synologyPassword: string): Promise<SynologyConnectionResult> {
+
+    const ssrf = await checkSsrf(synologyUrl);
+    if (!ssrf.allowed) {
+        return { connected: false, error: ssrf.error ?? 'Invalid Synology URL' };
+    }
+    try {
+        const login = await loginToSynology(synologyUrl, synologyUsername, synologyPassword);
+        if (!login.success || !login.data?.sid) {
+            return { connected: false, error: login.error?.message || 'Authentication failed' };
+        }
+        return { connected: true, user: { username: synologyUsername } };
+    } catch (err: unknown) {
+        return { connected: false, error: err instanceof Error ? err.message : 'Connection failed' };
+    }
+}
+
+export async function listSynologyAlbums(userId: number): Promise<{ albums: Array<{ id: string; albumName: string; assetCount: number }> }> {
+    const result = await requestSynologyApi<{ list: SynologyPhotoItem[] }>(userId, {
+        api: 'SYNO.Foto.Browse.Album',
+        method: 'list',
+        version: 4,
+        offset: 0,
+        limit: 100,
+    });
+
+    if (!result.success || !result.data) {
+        throw new SynologyServiceError(result.error?.code || 500, result.error?.message || 'Failed to fetch albums');
+    }
+
+    const albums = (result.data.list || []).map((album: SynologyPhotoItem) => ({
+        id: String(album.id),
+        albumName: album.name || '',
+        assetCount: album.item_count || 0,
+    }));
+
+    return { albums };
+}
+
+
+export async function syncSynologyAlbumLink(userId: number, tripId: string, linkId: string): Promise<{ added: number; total: number }> {
+    const response = getAlbumIdFromLink(tripId, linkId, userId);
+    if (!response.success) {
+        throw new SynologyServiceError(404, 'Album link not found');
+    }
+
+    const allItems: SynologyPhotoItem[] = [];
+    const pageSize = 1000;
+    let offset = 0;
+
+    while (true) {
+        const result = await requestSynologyApi<{ list: SynologyPhotoItem[] }>(userId, {
+            api: 'SYNO.Foto.Browse.Item',
+            method: 'list',
+            version: 1,
+            album_id: Number(response.data),
+            offset,
+            limit: pageSize,
+            additional: ['thumbnail'],
+        });
+
+        if (!result.success || !result.data) {
+            throw new SynologyServiceError(502, result.error?.message || 'Failed to fetch album');
+        }
+
+        const items = result.data.list || [];
+        allItems.push(...items);
+        if (items.length < pageSize) break;
+        offset += pageSize;
+    }
+
+    const selection: Selection = {
+        provider: SYNOLOGY_PROVIDER,
+        asset_ids: allItems.map(item => String(item.additional?.thumbnail?.cache_key || '')).filter(id => id),
+    };
+
+    updateSyncTimeForAlbumLink(linkId);
+
+    const result = await addTripPhotos(tripId, userId, true, [selection]);
+    if ('error' in result) throw new SynologyServiceError(result.error.status, result.error.message);
+
+    return { added: result.data.added, total: allItems.length };
+}
+
+export async function searchSynologyPhotos(userId: number, from?: string, to?: string, offset = 0, limit = 300): Promise<{ assets: SynologyPhotoInfo[]; total: number; hasMore: boolean }> {
+    const params: ApiCallParams = {
+        api: 'SYNO.Foto.Search.Search',
+        method: 'list_item',
+        version: 1,
+        offset,
+        limit,
+        keyword: '.',
+        additional: ['thumbnail', 'address'],
+    };
+
+    if (from || to) {
+        if (from) {
+            params.start_time = Math.floor(new Date(from).getTime() / 1000);
+        }
+        if (to) {
+            params.end_time = Math.floor(new Date(to).getTime() / 1000) + 86400; //adding it as the next day 86400 seconds in day
+        }
+    }
+
+    const result = await requestSynologyApi<{ list: SynologyPhotoItem[]; total: number }>(userId, params);
+    if (!result.success || !result.data) {
+        throw new SynologyServiceError(502, result.error?.message || 'Failed to fetch album photos');
+    }
+
+    const allItems = result.data.list || [];
+    const total = allItems.length;
+    const assets = allItems.map(item => normalizeSynologyPhotoInfo(item));
+
+    return {
+        assets,
+        total,
+        hasMore: total === limit,
+    };
+}
+
+export async function getSynologyAssetInfo(userId: number, photoId: string, targetUserId?: number): Promise<SynologyPhotoInfo> {
+    const parsedId = splitPackedSynologyId(photoId);
+    const result = await requestSynologyApi<{ list: SynologyPhotoItem[] }>(targetUserId ?? userId, {
+        api: 'SYNO.Foto.Browse.Item',
+        method: 'get',
+        version: 5,
+        id: `[${parsedId.id}]`,
+        additional: ['resolution', 'exif', 'gps', 'address', 'orientation', 'description'],
+    });
+
+    if (!result.success || !result.data) {
+        throw new SynologyServiceError(404, 'Photo not found');
+    }
+
+    const metadata = result.data.list?.[0];
+    if (!metadata) {
+        throw new SynologyServiceError(404, 'Photo not found');
+    }
+
+    const normalized = normalizeSynologyPhotoInfo(metadata);
+    normalized.id = photoId;
+    return normalized;
+}
+
+export async function streamSynologyAsset(
+    userId: number,
+    targetUserId: number,
+    photoId: string,
+    kind: 'thumbnail' | 'original',
+    size?: string,
+): Promise<SynologyProxyResult> {    
+    const parsedId = splitPackedSynologyId(photoId);
+    const synology_url = getSynologyCredentials(targetUserId).synology_url;
+    if (!synology_url) {
+        throw new SynologyServiceError(402, 'User not configured with Synology');
+    }
+
+    const sid = await getSynologySession(targetUserId);
+    if (!sid.success || !sid.sid) {
+        throw new SynologyServiceError(401, 'Authentication failed');
+    }
+
+    
+
+    const params = kind === 'thumbnail'
+        ? new URLSearchParams({
+            api: 'SYNO.Foto.Thumbnail',
+            method: 'get',
+            version: '2',
+            mode: 'download',
+            id: parsedId.id,
+            type: 'unit',
+            size: String(size || SYNOLOGY_DEFAULT_THUMBNAIL_SIZE),
+            cache_key: parsedId.cacheKey,
+            _sid: sid.sid,
+        })
+        : new URLSearchParams({
+            api: 'SYNO.Foto.Download',
+            method: 'download',
+            version: '2',
+            cache_key: parsedId.cacheKey,
+            unit_id: `[${parsedId.id}]`,
+            _sid: sid.sid,
+        });
+
+    const url = `${buildSynologyEndpoint(synology_url)}?${params.toString()}`;
+    const resp = await requestSynologyStream(url);
+
+    if (!resp.ok) {
+        const body = kind === 'original' ? await resp.text() : 'Failed';
+        throw new SynologyServiceError(resp.status, kind === 'original' ? `Failed: ${body}` : body);
+    }
+
+    return {
+        status: resp.status,
+        headers: {
+            'content-type': resp.headers.get('content-type') || (kind === 'thumbnail' ? 'image/jpeg' : 'application/octet-stream'),
+            'cache-control': resp.headers.get('cache-control') || 'public, max-age=86400',
+            'content-length': resp.headers.get('content-length'),
+            'content-disposition': resp.headers.get('content-disposition'),
+        },
+        body: resp.body,
+    };
+}
+
+export async function pipeSynologyProxy(response: ExpressResponse, proxy: SynologyProxyResult): Promise<void> {
+    response.status(proxy.status);
+    if (proxy.headers['content-type']) response.set('Content-Type', proxy.headers['content-type'] as string);
+    if (proxy.headers['cache-control']) response.set('Cache-Control', proxy.headers['cache-control'] as string);
+    if (proxy.headers['content-length']) response.set('Content-Length', proxy.headers['content-length'] as string);
+    if (proxy.headers['content-disposition']) response.set('Content-Disposition', proxy.headers['content-disposition'] as string);
+
+    if (!proxy.body) {
+        response.end();
+        return;
+    }
+
+    await pipeline(Readable.fromWeb(proxy.body), response);
+}

server/src/services/memories/unifiedService.ts

@@ -0,0 +1,249 @@
+import { db, canAccessTrip } from '../../db/database';
+import { notifyTripMembers } from '../notifications';
+import { broadcast } from '../../websocket';
+
+import {
+  ServiceResult,
+  fail,
+  success,
+  mapDbError,
+  Selection,
+} from './helpersService';
+
+
+export function listTripPhotos(tripId: string, userId: number): ServiceResult<any[]> {
+  const access = canAccessTrip(tripId, userId);
+  if (!access) {
+    return fail('Trip not found or access denied', 404);
+  }
+
+  try {
+    const photos = db.prepare(`
+      SELECT tp.asset_id, tp.provider, tp.user_id, tp.shared, tp.added_at,
+             u.username, u.avatar
+      FROM trip_photos tp
+      JOIN users u ON tp.user_id = u.id
+      WHERE tp.trip_id = ?
+        AND (tp.user_id = ? OR tp.shared = 1)
+      ORDER BY tp.added_at ASC
+    `).all(tripId, userId) as any[];
+
+    return success(photos);
+  } catch (error) {
+    return mapDbError(error, 'Failed to list trip photos');
+  }
+}
+
+export function listTripAlbumLinks(tripId: string, userId: number): ServiceResult<any[]> {
+  const access = canAccessTrip(tripId, userId);
+  if (!access) {
+    return fail('Trip not found or access denied', 404);
+  }
+
+  try {
+    const links = db.prepare(`
+      SELECT tal.id,
+             tal.trip_id,
+             tal.user_id,
+             tal.provider,
+             tal.album_id,
+             tal.album_name,
+             tal.sync_enabled,
+             tal.last_synced_at,
+             tal.created_at,
+             u.username
+      FROM trip_album_links tal
+      JOIN users u ON tal.user_id = u.id
+      WHERE tal.trip_id = ?
+      ORDER BY tal.created_at ASC
+    `).all(tripId);
+
+    return success(links);
+  } catch (error) {
+    return mapDbError(error, 'Failed to list trip album links');
+  }
+}
+
+//-----------------------------------------------
+// managing photos in trip
+
+function _addTripPhoto(tripId: string, userId: number, provider: string, assetId: string, shared: boolean): boolean {
+  const result = db.prepare(
+    'INSERT OR IGNORE INTO trip_photos (trip_id, user_id, asset_id, provider, shared) VALUES (?, ?, ?, ?, ?)'
+  ).run(tripId, userId, assetId, provider, shared ? 1 : 0);
+  return result.changes > 0;
+}
+
+export async function addTripPhotos(
+  tripId: string,
+  userId: number,
+  shared: boolean,
+  selections: Selection[],
+  sid?: string,
+): Promise<ServiceResult<{ added: number; shared: boolean }>> {
+  const access = canAccessTrip(tripId, userId);
+  if (!access) {
+    return fail('Trip not found or access denied', 404);
+  }
+
+  if (selections.length === 0) {
+    return fail('No photos selected', 400);
+  }
+
+  try {
+    let added = 0;
+    for (const selection of selections) {
+      for (const raw of selection.asset_ids) {
+        const assetId = String(raw || '').trim();
+        if (!assetId) continue;
+        if (_addTripPhoto(tripId, userId, selection.provider, assetId, shared)) {
+          added++;
+        }
+      }
+    }
+
+    await _notifySharedTripPhotos(tripId, userId, added);
+    broadcast(tripId, 'memories:updated', { userId }, sid);
+    return success({ added, shared });
+  } catch (error) {
+    return mapDbError(error, 'Failed to add trip photos');
+  }
+}
+
+
+export async function setTripPhotoSharing(
+  tripId: string,
+  userId: number,
+  provider: string,
+  assetId: string,
+  shared: boolean,
+  sid?: string,
+): Promise<ServiceResult<true>> {
+  const access = canAccessTrip(tripId, userId);
+  if (!access) {
+    return fail('Trip not found or access denied', 404);
+  }
+
+  try {
+    db.prepare(`
+      UPDATE trip_photos
+      SET shared = ?
+      WHERE trip_id = ?
+        AND user_id = ?
+        AND asset_id = ?
+        AND provider = ?
+    `).run(shared ? 1 : 0, tripId, userId, assetId, provider);
+
+    await _notifySharedTripPhotos(tripId, userId, 1);
+    broadcast(tripId, 'memories:updated', { userId }, sid);
+    return success(true);
+  } catch (error) {
+    return mapDbError(error, 'Failed to update photo sharing');
+  }
+}
+
+export function removeTripPhoto(
+  tripId: string,
+  userId: number,
+  provider: string,
+  assetId: string,
+  sid?: string,
+): ServiceResult<true> {
+  const access = canAccessTrip(tripId, userId);
+  if (!access) {
+    return fail('Trip not found or access denied', 404);
+  }
+
+  try {
+    db.prepare(`
+      DELETE FROM trip_photos
+      WHERE trip_id = ?
+        AND user_id = ?
+        AND asset_id = ?
+        AND provider = ?
+    `).run(tripId, userId, assetId, provider);
+    
+    broadcast(tripId, 'memories:updated', { userId }, sid);
+
+    return success(true);
+  } catch (error) {
+    return mapDbError(error, 'Failed to remove trip photo');
+  }
+}
+
+// ----------------------------------------------
+// managing album links in trip
+
+export function createTripAlbumLink(tripId: string, userId: number, providerRaw: unknown, albumIdRaw: unknown, albumNameRaw: unknown): ServiceResult<true> {
+  const access = canAccessTrip(tripId, userId);
+  if (!access) {
+    return fail('Trip not found or access denied', 404);
+  }
+
+  const provider = String(providerRaw || '').toLowerCase();
+  const albumId = String(albumIdRaw || '').trim();
+  const albumName = String(albumNameRaw || '').trim();
+
+  if (!provider) {
+    return fail('provider is required', 400);
+  }
+  if (!albumId) {
+    return fail('album_id required', 400);
+  }
+
+  try {
+    const result = db.prepare(
+      'INSERT OR IGNORE INTO trip_album_links (trip_id, user_id, provider, album_id, album_name) VALUES (?, ?, ?, ?, ?)'
+    ).run(tripId, userId, provider, albumId, albumName);
+
+    if (result.changes === 0) {
+      return fail('Album already linked', 409);
+    }
+
+    return success(true);
+  } catch (error) {
+    return mapDbError(error, 'Failed to link album');
+  }
+}
+
+export function removeAlbumLink(tripId: string, linkId: string, userId: number): ServiceResult<true> {
+  const access = canAccessTrip(tripId, userId);
+  if (!access) {
+    return fail('Trip not found or access denied', 404);
+  }
+
+  try {
+    db.prepare('DELETE FROM trip_album_links WHERE id = ? AND trip_id = ? AND user_id = ?')
+      .run(linkId, tripId, userId);
+
+    return success(true);
+  } catch (error) {
+    return mapDbError(error, 'Failed to remove album link');
+  }
+}
+
+
+//-----------------------------------------------
+// notifications helper
+
+async function _notifySharedTripPhotos(
+  tripId: string,
+  actorUserId: number,
+  added: number,
+): Promise<ServiceResult<void>> {
+  if (added <= 0) return fail('No photos shared, skipping notifications', 200);
+
+  try {
+    const actorRow = db.prepare('SELECT username FROM users WHERE id = ?').get(actorUserId) as { username: string | null };
+
+    const tripInfo = db.prepare('SELECT title FROM trips WHERE id = ?').get(tripId) as { title: string } | undefined;
+    await notifyTripMembers(Number(tripId), actorUserId, 'photos_shared', {
+      trip: tripInfo?.title || 'Untitled',
+      actor: actorRow?.username || 'Unknown',
+      count: String(added),
+    });
+    return success(undefined);
+  } catch {
+    return fail('Failed to send notifications', 500);
+  }
+}