style(frontend): soften the document glyph nudge to a hairline

Makefile

@@ -21,7 +21,7 @@ deploy:
 	$(MAKE) rebuild
 
 migrate:
-	docker compose run --rm migrator $(filter-out $@,$(MAKECMDGOALS))
+	docker compose --profile db --profile migrate run --rm migrator $(filter-out $@,$(MAKECMDGOALS))
 
 session-create:
 	cd backend && uv run python scripts/session/create.py

backend/migrations/versions/c1f6b3d84a92_hot_path_indexes.py

@@ -0,0 +1,41 @@
+"""hot path indexes
+
+Revision ID: c1f6b3d84a92
+Revises: b9e4d1a70c26
+Create Date: 2026-08-06 12:00:00.000000
+
+"""
+
+from collections.abc import Sequence
+
+from alembic import op
+
+revision: str = "c1f6b3d84a92"
+down_revision: str | None = "b9e4d1a70c26"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.execute(
+        "CREATE INDEX ix_messages_chat_date ON messages "
+        "(account_id, chat_id, date DESC, message_id DESC)"
+    )
+    op.execute("CREATE INDEX ix_avatars_owner ON avatars (account_id, owner_id)")
+    op.execute("CREATE INDEX ix_media_message ON media (account_id, message_id)")
+    op.execute(
+        "CREATE INDEX ix_chat_history_chat_ts ON chat_history "
+        "(account_id, chat_id, ts DESC)"
+    )
+    op.execute(
+        "CREATE INDEX ix_read_receipts_chat ON read_receipts "
+        "(account_id, chat_id, kind, message_id DESC)"
+    )
+
+
+def downgrade() -> None:
+    op.execute("DROP INDEX IF EXISTS ix_read_receipts_chat")
+    op.execute("DROP INDEX IF EXISTS ix_chat_history_chat_ts")
+    op.execute("DROP INDEX IF EXISTS ix_media_message")
+    op.execute("DROP INDEX IF EXISTS ix_avatars_owner")
+    op.execute("DROP INDEX IF EXISTS ix_messages_chat_date")

backend/migrations/versions/d4a7e2b91f38_chat_stats.py

@@ -0,0 +1,119 @@
+"""chat stats
+
+Revision ID: d4a7e2b91f38
+Revises: c1f6b3d84a92
+Create Date: 2026-08-06 12:30:00.000000
+
+"""
+
+from collections.abc import Sequence
+
+from alembic import op
+
+revision: str = "d4a7e2b91f38"
+down_revision: str | None = "c1f6b3d84a92"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+_APPLY = """
+CREATE FUNCTION chat_stats_apply() RETURNS trigger LANGUAGE plpgsql AS $$
+BEGIN
+    IF TG_OP = 'INSERT' THEN
+        INSERT INTO chat_stats AS cs (account_id, chat_id, message_count,
+                                      last_date, last_message_id,
+                                      last_text, last_sender_id)
+        VALUES (NEW.account_id, NEW.chat_id, 1,
+                CASE WHEN NEW.date <= now() + interval '1 day'
+                     THEN NEW.date END,
+                CASE WHEN NEW.date <= now() + interval '1 day'
+                     THEN NEW.message_id END,
+                NEW.text, NEW.sender_id)
+        ON CONFLICT (account_id, chat_id) DO UPDATE SET
+            message_count = cs.message_count + 1,
+            last_date = CASE WHEN chat_stats_newer(cs, EXCLUDED)
+                        THEN EXCLUDED.last_date ELSE cs.last_date END,
+            last_message_id = CASE WHEN chat_stats_newer(cs, EXCLUDED)
+                              THEN EXCLUDED.last_message_id
+                              ELSE cs.last_message_id END,
+            last_text = CASE WHEN chat_stats_newer(cs, EXCLUDED)
+                        THEN EXCLUDED.last_text ELSE cs.last_text END,
+            last_sender_id = CASE WHEN chat_stats_newer(cs, EXCLUDED)
+                             THEN EXCLUDED.last_sender_id
+                             ELSE cs.last_sender_id END;
+    ELSE
+        UPDATE chat_stats
+        SET last_text = NEW.text, last_sender_id = NEW.sender_id
+        WHERE account_id = NEW.account_id
+          AND chat_id = NEW.chat_id
+          AND last_message_id = NEW.message_id;
+    END IF;
+    RETURN NULL;
+END;
+$$
+"""
+
+_NEWER = """
+CREATE FUNCTION chat_stats_newer(current chat_stats, incoming chat_stats)
+RETURNS boolean LANGUAGE sql IMMUTABLE AS $$
+    SELECT incoming.last_date IS NOT NULL
+       AND (current.last_date IS NULL
+            OR (incoming.last_date, incoming.last_message_id)
+               > (current.last_date, current.last_message_id))
+$$
+"""
+
+_BACKFILL = """
+INSERT INTO chat_stats (account_id, chat_id, message_count, last_date,
+                        last_message_id, last_text, last_sender_id)
+SELECT agg.account_id, agg.chat_id, agg.message_count,
+       last.date, last.message_id, last.text, last.sender_id
+FROM (
+    SELECT account_id, chat_id, count(*) AS message_count
+    FROM messages GROUP BY account_id, chat_id
+) agg
+LEFT JOIN LATERAL (
+    SELECT date, message_id, text, sender_id FROM messages m
+    WHERE m.account_id = agg.account_id AND m.chat_id = agg.chat_id
+      AND m.date <= now() + interval '1 day'
+    ORDER BY m.date DESC, m.message_id DESC LIMIT 1
+) last ON true
+"""
+
+
+def upgrade() -> None:
+    op.execute(
+        "CREATE TABLE chat_stats ("
+        "account_id integer NOT NULL, "
+        "chat_id bigint NOT NULL, "
+        "message_count bigint NOT NULL DEFAULT 0, "
+        "last_date timestamptz, "
+        "last_message_id bigint, "
+        "last_text text, "
+        "last_sender_id bigint, "
+        "PRIMARY KEY (account_id, chat_id))"
+    )
+    op.execute(_BACKFILL)
+    op.execute(
+        "CREATE INDEX ix_chat_stats_recent ON chat_stats "
+        "(account_id, last_date DESC, chat_id DESC)"
+    )
+    op.execute(_NEWER)
+    op.execute(_APPLY)
+    op.execute(
+        "CREATE TRIGGER messages_chat_stats_insert AFTER INSERT ON messages "
+        "FOR EACH ROW EXECUTE FUNCTION chat_stats_apply()"
+    )
+    op.execute(
+        "CREATE TRIGGER messages_chat_stats_update AFTER UPDATE ON messages "
+        "FOR EACH ROW WHEN (OLD.text IS DISTINCT FROM NEW.text "
+        "OR OLD.sender_id IS DISTINCT FROM NEW.sender_id) "
+        "EXECUTE FUNCTION chat_stats_apply()"
+    )
+
+
+def downgrade() -> None:
+    op.execute("DROP TRIGGER IF EXISTS messages_chat_stats_update ON messages")
+    op.execute("DROP TRIGGER IF EXISTS messages_chat_stats_insert ON messages")
+    op.execute("DROP FUNCTION IF EXISTS chat_stats_apply()")
+    op.execute("DROP FUNCTION IF EXISTS chat_stats_newer(chat_stats, chat_stats)")
+    op.execute("DROP TABLE IF EXISTS chat_stats")

backend/migrations/versions/e1c7a4b62d90_drop_scheduled_duplicates.py

@@ -0,0 +1,75 @@
+"""drop scheduled message duplicates
+
+Revision ID: e1c7a4b62d90
+Revises: d4a7e2b91f38
+Create Date: 2026-08-13 10:00:00.000000
+
+"""
+
+from collections.abc import Sequence
+
+from alembic import op
+
+revision: str = "e1c7a4b62d90"
+down_revision: str | None = "d4a7e2b91f38"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+_STAGE = """
+CREATE TEMP TABLE scheduled_keys ON COMMIT DROP AS
+SELECT DISTINCT s.account_id, s.chat_id, s.message_id
+FROM messages s
+WHERE s.raw->>'scheduled' = 'true'
+  AND NOT EXISTS (
+    SELECT 1 FROM messages r
+    WHERE r.account_id = s.account_id AND r.chat_id = s.chat_id
+      AND r.message_id = s.message_id
+      AND r.raw->>'scheduled' IS DISTINCT FROM 'true'
+  )
+"""
+
+_DELETE_CHILD = """
+DELETE FROM {table} t
+USING scheduled_keys k
+WHERE t.account_id = k.account_id AND t.chat_id = k.chat_id
+  AND t.message_id = k.message_id
+"""
+
+_DELETE_MESSAGES = """
+DELETE FROM messages m
+USING scheduled_keys k
+WHERE m.account_id = k.account_id AND m.chat_id = k.chat_id
+  AND m.message_id = k.message_id AND m.raw->>'scheduled' = 'true'
+"""
+
+_RECOUNT = """
+UPDATE chat_stats cs
+SET message_count = fresh.message_count
+FROM (
+    SELECT k.account_id, k.chat_id,
+           (SELECT count(*) FROM messages m
+            WHERE m.account_id = k.account_id AND m.chat_id = k.chat_id)
+           AS message_count
+    FROM (SELECT DISTINCT account_id, chat_id FROM scheduled_keys) k
+) fresh
+WHERE cs.account_id = fresh.account_id AND cs.chat_id = fresh.chat_id
+"""
+
+_CHILD_TABLES = ("media", "media_versions", "message_versions", "links", "callbacks")
+
+_ALLOW_DECOMPRESSION = (
+    "SET LOCAL timescaledb.max_tuples_decompressed_per_dml_transaction = 0"
+)
+
+
+def upgrade() -> None:
+    op.execute(_ALLOW_DECOMPRESSION)
+    op.execute(_STAGE)
+    for table in _CHILD_TABLES:
+        op.execute(_DELETE_CHILD.format(table=table))
+    op.execute(_DELETE_MESSAGES)
+    op.execute(_RECOUNT)
+
+
+def downgrade() -> None:
+    pass

backend/migrations/versions/f2b8d3c9a51e_file_shares.py

@@ -0,0 +1,73 @@
+"""file shares
+
+Revision ID: f2b8d3c9a51e
+Revises: e1c7a4b62d90
+Create Date: 2026-08-13 10:30:00.000000
+
+"""
+
+from collections.abc import Sequence
+
+from alembic import op
+
+revision: str = "f2b8d3c9a51e"
+down_revision: str | None = "e1c7a4b62d90"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+_SHARES = """
+CREATE TABLE file_shares (
+    id serial PRIMARY KEY,
+    account_id integer NOT NULL,
+    token text NOT NULL UNIQUE,
+    kind text NOT NULL,
+    storage_key text NOT NULL,
+    file_name text NOT NULL,
+    mime text,
+    file_size bigint,
+    title text,
+    chat_id bigint,
+    message_id bigint,
+    peer_id bigint,
+    story_id bigint,
+    expires_at timestamptz,
+    max_downloads integer,
+    download_count integer NOT NULL DEFAULT 0,
+    last_download_at timestamptz,
+    revoked_at timestamptz,
+    created_at timestamptz NOT NULL DEFAULT now()
+)
+"""
+
+_HITS = """
+CREATE TABLE file_share_hits (
+    id bigserial PRIMARY KEY,
+    share_id integer NOT NULL REFERENCES file_shares (id) ON DELETE CASCADE,
+    ts timestamptz NOT NULL DEFAULT now(),
+    method text NOT NULL,
+    ip text,
+    user_agent text,
+    counted boolean NOT NULL DEFAULT false
+)
+"""
+
+
+def upgrade() -> None:
+    op.execute(_SHARES)
+    op.execute(
+        "CREATE INDEX ix_file_shares_account ON file_shares "
+        "(account_id, created_at DESC)"
+    )
+    op.execute(
+        "CREATE INDEX ix_file_shares_subject ON file_shares "
+        "(account_id, storage_key) WHERE revoked_at IS NULL"
+    )
+    op.execute(_HITS)
+    op.execute(
+        "CREATE INDEX ix_file_share_hits_share ON file_share_hits (share_id, ts DESC)"
+    )
+
+
+def downgrade() -> None:
+    op.execute("DROP TABLE IF EXISTS file_share_hits")
+    op.execute("DROP TABLE IF EXISTS file_shares")

backend/src/api/app.py

@@ -22,6 +22,7 @@ from api.routers import (
     custom_emoji,
     discover,
     events,
+    files,
     folders,
     media,
     peers,
@@ -29,11 +30,13 @@ from api.routers import (
     presence,
     profile,
     search,
+    shares,
     social,
     stories,
     watches,
 )
 from dependencies.container import container
+from utils.cache import DAY_HEADERS, IMMUTABLE_HEADERS, NO_STORE_HEADERS
 from utils.env import env
 
 if env.auth.token is None:
@@ -87,6 +90,8 @@ app.include_router(peers.router)
 app.include_router(discover.router)
 app.include_router(annotations.router)
 app.include_router(watches.router)
+app.include_router(shares.router)
+app.include_router(files.router)
 
 app.mount("/mcp", mcp_app)
 
@@ -105,8 +110,11 @@ if _spa_dir.is_dir():
     async def serve_spa(spa_path: str) -> FileResponse:
         candidate = (_spa_dir / spa_path).resolve()
         if spa_path and candidate.is_relative_to(_spa_dir) and candidate.is_file():
-            return FileResponse(candidate)
+            immutable = spa_path.startswith("_app/immutable/")
-        return FileResponse(_spa_index)
+            return FileResponse(
+                candidate, headers=IMMUTABLE_HEADERS if immutable else DAY_HEADERS
+            )
+        return FileResponse(_spa_index, headers=NO_STORE_HEADERS)
 
 
 app.add_middleware(BearerAuthMiddleware, token=_token)

backend/src/api/realtime.py

@@ -65,11 +65,16 @@ class EventHub:
             return
         account_id = event.get("account_id")
         chat_id = event.get("chat_id")
+        scoped = event.get("kind") == "presence"
         targets = [
             sub
             for sub in self._subscribers
             if sub.account_id == account_id
-            and (sub.chat_id is None or sub.chat_id == chat_id)
+            and (
+                sub.chat_id == chat_id
+                if scoped
+                else sub.chat_id is None or sub.chat_id == chat_id
+            )
         ]
         if not targets:
             return

backend/src/api/routers/avatars.py

@@ -5,6 +5,7 @@ from dishka.integrations.fastapi import DishkaRoute, FromDishka
 from fastapi import APIRouter, HTTPException, Query
 from fastapi.responses import FileResponse
 
+from utils.cache import IMMUTABLE_HEADERS, SHORT_HEADERS
 from utils.jobs import enqueue
 from utils.read.avatars import avatar_by_unique_id, avatar_history, current_avatar
 from utils.read.models import AvatarHistoryView
@@ -52,5 +53,7 @@ async def serve_avatar(
         )
         raise HTTPException(status_code=409, detail="avatar not downloaded; fetching")
     return FileResponse(
-        storage.url(avatar.storage_key), media_type=avatar.mime or "image/jpeg"
+        storage.url(avatar.storage_key),
+        media_type=avatar.mime or "image/jpeg",
+        headers=IMMUTABLE_HEADERS if unique_id is not None else SHORT_HEADERS,
     )

backend/src/api/routers/backfill.py

@@ -16,6 +16,12 @@ class BackfillRequest(BaseModel):
     account_id: int
     chat_id: int
     media: bool = False
+    full: bool = False
+
+
+class StoriesBackfillRequest(BaseModel):
+    account_id: int
+    peer_id: int
 
 
 class FetchMediaRequest(BaseModel):
@@ -70,7 +76,17 @@ async def enqueue_backfill(
         pool,
         body.account_id,
         "backfill",
-        {"chat_id": body.chat_id, "media": body.media},
+        {"chat_id": body.chat_id, "media": body.media, "full": body.full},
+    )
+    return EnqueueResponse(job_id=job_id)
+
+
+@router.post("/stories/backfill", status_code=201)
+async def enqueue_stories_backfill(
+    pool: FromDishka[asyncpg.Pool], body: StoriesBackfillRequest
+) -> EnqueueResponse:
+    job_id = await enqueue(
+        pool, body.account_id, "backfill_stories", {"peer_id": body.peer_id}
     )
     return EnqueueResponse(job_id=job_id)
 

backend/src/api/routers/chats.py

@@ -6,6 +6,7 @@ from fastapi import APIRouter, Query
 from pydantic import BaseModel
 
 from utils.jobs import enqueue
+from utils.policy import repository
 from utils.read import chats
 from utils.read.models import (
     DEFAULT_LIMIT,
@@ -35,8 +36,24 @@ async def list_chats(
     account_id: AccountId,
     limit: Limit = DEFAULT_LIMIT,
     offset: Offset = 0,
+    folder_id: Annotated[int | None, Query()] = None,
+    search: Annotated[str | None, Query()] = None,
 ) -> list[ChatListItem]:
-    return await chats.list_chats(pool, account_id, Page(limit=limit, offset=offset))
+    folder = (
+        await repository.get_folder(pool, account_id, folder_id)
+        if folder_id is not None
+        else None
+    )
+    return await chats.list_chats(
+        pool, account_id, Page(limit=limit, offset=offset), folder=folder, search=search
+    )
+
+
+@router.get("/chats/{chat_id}")
+async def get_chat(
+    pool: FromDishka[asyncpg.Pool], chat_id: int, account_id: AccountId
+) -> ChatListItem | None:
+    return await chats.get_chat(pool, account_id, chat_id)
 
 
 @router.get("/chats/{chat_id}/messages")

backend/src/api/routers/discover.py

@@ -103,7 +103,10 @@ async def track_chat(
     await enqueue(pool, body.account_id, "enrich_chat", {"chat_id": chat_id})
     if body.backfill:
         await enqueue(
-            pool, body.account_id, "backfill", {"chat_id": chat_id, "media": True}
+            pool,
+            body.account_id,
+            "backfill",
+            {"chat_id": chat_id, "media": True, "full": True},
         )
     return await discover.get_item(pool, body.account_id, chat_id)
 

backend/src/api/routers/files.py

@@ -0,0 +1,106 @@
+from datetime import UTC, datetime
+from typing import Annotated
+
+import asyncpg
+from dishka.integrations.fastapi import DishkaRoute, FromDishka
+from fastapi import APIRouter, Query, Request
+from fastapi.responses import FileResponse, PlainTextResponse
+
+from utils.files import (
+    content_disposition,
+    counts_as_download,
+    is_inline_mime,
+    resolve_mime,
+)
+from utils.read import shares
+from utils.storage import ContentAddressedStorage
+
+router = APIRouter(tags=["files"], route_class=DishkaRoute)
+
+_GONE = "This link is no longer available.\n"
+_MISSING = "Not found.\n"
+
+_NO_STORE = {"Cache-Control": "private, no-store", "X-Robots-Tag": "noindex, nofollow"}
+
+
+def _client_ip(request: Request) -> str | None:
+    forwarded = request.headers.get("x-forwarded-for")
+    if forwarded:
+        return forwarded.split(",")[0].strip()
+    return request.client.host if request.client else None
+
+
+def _expired(row: asyncpg.Record) -> bool:
+    expires_at = row["expires_at"]
+    return expires_at is not None and expires_at <= datetime.now(UTC)
+
+
+def _exhausted(row: asyncpg.Record) -> bool:
+    limit = row["max_downloads"]
+    return limit is not None and row["download_count"] >= limit
+
+
+async def _serve(
+    request: Request,
+    pool: asyncpg.Pool,
+    storage: ContentAddressedStorage,
+    token: str,
+    *,
+    dl: bool,
+) -> FileResponse | PlainTextResponse:
+    row = await shares.share_by_token(pool, token)
+    if row is None:
+        return PlainTextResponse(_MISSING, status_code=404, headers=_NO_STORE)
+
+    method = request.method
+    agent = request.headers.get("user-agent")
+    ip = _client_ip(request)
+    counts = counts_as_download(method, agent, request.headers.get("range"))
+
+    if row["revoked_at"] is not None or _expired(row) or _exhausted(row):
+        await shares.record_hit(pool, row["id"], method, ip, agent, counted=False)
+        return PlainTextResponse(_GONE, status_code=410, headers=_NO_STORE)
+
+    if not storage.exists(row["storage_key"]):
+        return PlainTextResponse(_MISSING, status_code=404, headers=_NO_STORE)
+
+    if counts and not await shares.consume_download(pool, row["id"]):
+        await shares.record_hit(pool, row["id"], method, ip, agent, counted=False)
+        return PlainTextResponse(_GONE, status_code=410, headers=_NO_STORE)
+
+    await shares.record_hit(pool, row["id"], method, ip, agent, counted=counts)
+    mime = resolve_mime(row["kind"], row["mime"], row["file_name"])
+    attachment = dl or not is_inline_mime(mime)
+    return FileResponse(
+        storage.url(row["storage_key"]),
+        media_type=mime,
+        headers={
+            **_NO_STORE,
+            "Content-Disposition": content_disposition(
+                row["file_name"], attachment=attachment
+            ),
+        },
+    )
+
+
+@router.api_route("/f/{token}", methods=["GET", "HEAD"], response_model=None)
+async def serve_shared_file(
+    request: Request,
+    pool: FromDishka[asyncpg.Pool],
+    storage: FromDishka[ContentAddressedStorage],
+    token: str,
+    dl: Annotated[bool, Query()] = False,
+) -> FileResponse | PlainTextResponse:
+    return await _serve(request, pool, storage, token, dl=dl)
+
+
+@router.api_route("/f/{token}/{name}", methods=["GET", "HEAD"], response_model=None)
+async def serve_shared_file_named(
+    request: Request,
+    pool: FromDishka[asyncpg.Pool],
+    storage: FromDishka[ContentAddressedStorage],
+    token: str,
+    name: str,  # noqa: ARG001
+    dl: Annotated[bool, Query()] = False,
+) -> FileResponse | PlainTextResponse:
+    return await _serve(request, pool, storage, token, dl=dl)

backend/src/api/routers/media.py

@@ -5,6 +5,8 @@ from dishka.integrations.fastapi import DishkaRoute, FromDishka
 from fastapi import APIRouter, HTTPException, Query
 from fastapi.responses import FileResponse
 
+from utils.cache import DAY_HEADERS, IMMUTABLE_HEADERS
+from utils.files import content_disposition, media_file_name, resolve_mime
 from utils.read.media import (
     get_media,
     get_media_version,
@@ -16,6 +18,15 @@ from utils.storage import ContentAddressedStorage
 
 router = APIRouter(prefix="/api/media", tags=["media"], route_class=DishkaRoute)
 
+Download = Annotated[bool, Query()]
+
+
+def _attachment(headers: dict[str, str], file_name: str) -> dict[str, str]:
+    return {
+        **headers,
+        "Content-Disposition": content_disposition(file_name, attachment=True),
+    }
+
 
 @router.get("/{media_id}/meta")
 async def media_meta(pool: FromDishka[asyncpg.Pool], media_id: int) -> MediaView:
@@ -40,13 +51,20 @@ async def serve_media_version(
     pool: FromDishka[asyncpg.Pool],
     storage: FromDishka[ContentAddressedStorage],
     version_id: int,
+    download: Download = False,
 ) -> FileResponse:
     version = await get_media_version(pool, version_id)
     if version is None:
         raise HTTPException(status_code=404, detail="media version not found")
+    headers = IMMUTABLE_HEADERS
+    if download:
+        headers = _attachment(
+            headers, media_file_name(version.kind, version.mime, version_id)
+        )
     return FileResponse(
         storage.url(version.storage_key),
-        media_type=version.mime or "application/octet-stream",
+        media_type=resolve_mime(version.kind, version.mime),
+        headers=headers,
     )
 
 
@@ -68,6 +86,7 @@ async def serve_media(
     pool: FromDishka[asyncpg.Pool],
     storage: FromDishka[ContentAddressedStorage],
     media_id: int,
+    download: Download = False,
 ) -> FileResponse:
     media = await get_media(pool, media_id)
     if media is None:
@@ -77,7 +96,11 @@ async def serve_media(
             status_code=409,
             detail="media not downloaded; enqueue fetch via POST /api/media/fetch",
         )
+    headers = DAY_HEADERS
+    if download:
+        headers = _attachment(headers, media.file_name or f"media_{media_id}")
     return FileResponse(
         storage.url(media.storage_key),
-        media_type=media.mime or "application/octet-stream",
+        media_type=resolve_mime(media.kind, media.mime, media.file_name),
+        headers=headers,
     )

backend/src/api/routers/shares.py

@@ -0,0 +1,233 @@
+from typing import Annotated
+
+import asyncpg
+from dishka.integrations.fastapi import DishkaRoute, FromDishka
+from fastapi import APIRouter, HTTPException, Query
+from pydantic import BaseModel
+
+from utils.files import (
+    expiry_from_seconds,
+    media_file_name,
+    resolve_mime,
+    story_file_name,
+)
+from utils.read import chats, peers, shares
+from utils.read.media import get_media, get_media_version
+from utils.read.models import DEFAULT_LIMIT, FileShareHitView, FileShareView, Page
+
+router = APIRouter(prefix="/api/shares", tags=["shares"], route_class=DishkaRoute)
+
+
+class ShareCreate(BaseModel):
+    account_id: int
+    kind: str
+    media_id: int | None = None
+    version_id: int | None = None
+    peer_id: int | None = None
+    story_id: int | None = None
+    expires_in_seconds: int | None = None
+    max_downloads: int | None = None
+
+
+class ShareUpdate(BaseModel):
+    expires_in_seconds: int | None = None
+    max_downloads: int | None = None
+    keep_expiry: bool = False
+
+
+class Subject(BaseModel):
+    storage_key: str
+    file_name: str
+    mime: str | None
+    file_size: int | None
+    title: str | None
+    chat_id: int | None = None
+    message_id: int | None = None
+    peer_id: int | None = None
+    story_id: int | None = None
+
+
+_NOT_STORED = "file is not downloaded yet"
+
+
+async def _chat_title(pool: asyncpg.Pool, account_id: int, chat_id: int) -> str | None:
+    chat = await chats.get_chat(pool, account_id, chat_id)
+    return chat.title if chat else None
+
+
+async def _media_subject(pool: asyncpg.Pool, media_id: int) -> Subject:
+    media = await get_media(pool, media_id)
+    if media is None:
+        raise HTTPException(status_code=404, detail="media not found")
+    if not media.downloaded or media.storage_key is None:
+        raise HTTPException(status_code=409, detail=_NOT_STORED)
+    file_name = media.file_name or f"media_{media.id}"
+    return Subject(
+        storage_key=media.storage_key,
+        file_name=file_name,
+        mime=resolve_mime(media.kind, media.mime, file_name),
+        file_size=media.file_size,
+        title=await _chat_title(pool, media.account_id, media.chat_id),
+        chat_id=media.chat_id,
+        message_id=media.message_id,
+    )
+
+
+async def _version_subject(pool: asyncpg.Pool, version_id: int) -> Subject:
+    version = await get_media_version(pool, version_id)
+    if version is None:
+        raise HTTPException(status_code=404, detail="media version not found")
+    version_name = media_file_name(version.kind, version.mime, version_id)
+    return Subject(
+        storage_key=version.storage_key,
+        file_name=version_name,
+        mime=resolve_mime(version.kind, version.mime, version_name),
+        file_size=version.file_size,
+        title=None,
+        chat_id=None,
+        message_id=None,
+    )
+
+
+async def _story_subject(
+    pool: asyncpg.Pool, account_id: int, peer_id: int, story_id: int
+) -> Subject:
+    story = await peers.get_story(pool, account_id, peer_id, story_id)
+    if story is None:
+        raise HTTPException(status_code=404, detail="story not found")
+    if not story.downloaded or story.storage_key is None:
+        raise HTTPException(status_code=409, detail=_NOT_STORED)
+    return Subject(
+        storage_key=story.storage_key,
+        file_name=story_file_name(peer_id, story_id, story.media_kind),
+        mime="video/mp4" if story.media_kind == "video" else "image/jpeg",
+        file_size=None,
+        title=await _chat_title(pool, account_id, peer_id),
+        peer_id=peer_id,
+        story_id=story_id,
+    )
+
+
+async def _resolve(pool: asyncpg.Pool, body: ShareCreate) -> Subject:
+    if body.kind == "media" and body.media_id is not None:
+        return await _media_subject(pool, body.media_id)
+    if body.kind == "media_version" and body.version_id is not None:
+        return await _version_subject(pool, body.version_id)
+    if body.kind == "story" and body.peer_id is not None and body.story_id is not None:
+        return await _story_subject(pool, body.account_id, body.peer_id, body.story_id)
+    raise HTTPException(status_code=422, detail="unsupported share subject")
+
+
+@router.get("")
+async def list_shares(
+    pool: FromDishka[asyncpg.Pool],
+    account_id: Annotated[int, Query()],
+    active_only: Annotated[bool, Query()] = False,
+    limit: Annotated[int, Query()] = DEFAULT_LIMIT,
+    offset: Annotated[int, Query()] = 0,
+) -> list[FileShareView]:
+    return await shares.list_shares(
+        pool, account_id, Page(limit=limit, offset=offset), active_only=active_only
+    )
+
+
+@router.post("", status_code=201)
+async def create_share(
+    pool: FromDishka[asyncpg.Pool], body: ShareCreate
+) -> FileShareView:
+    subject = await _resolve(pool, body)
+    existing = await shares.find_active_share(
+        pool, body.account_id, subject.storage_key
+    )
+    if existing is not None:
+        return existing
+    return await shares.create_share(
+        pool,
+        body.account_id,
+        body.kind,
+        subject.storage_key,
+        subject.file_name,
+        mime=subject.mime,
+        file_size=subject.file_size,
+        title=subject.title,
+        chat_id=subject.chat_id,
+        message_id=subject.message_id,
+        peer_id=subject.peer_id,
+        story_id=subject.story_id,
+        expires_at=expiry_from_seconds(body.expires_in_seconds),
+        max_downloads=body.max_downloads,
+    )
+
+
+@router.get("/lookup")
+async def lookup_share(
+    pool: FromDishka[asyncpg.Pool],
+    account_id: Annotated[int, Query()],
+    kind: Annotated[str, Query()],
+    media_id: Annotated[int | None, Query()] = None,
+    version_id: Annotated[int | None, Query()] = None,
+    peer_id: Annotated[int | None, Query()] = None,
+    story_id: Annotated[int | None, Query()] = None,
+) -> FileShareView | None:
+    body = ShareCreate(
+        account_id=account_id,
+        kind=kind,
+        media_id=media_id,
+        version_id=version_id,
+        peer_id=peer_id,
+        story_id=story_id,
+    )
+    subject = await _resolve(pool, body)
+    return await shares.find_active_share(pool, account_id, subject.storage_key)
+
+
+@router.get("/{share_id}/hits")
+async def share_hits(
+    pool: FromDishka[asyncpg.Pool],
+    share_id: int,
+    limit: Annotated[int, Query()] = DEFAULT_LIMIT,
+    offset: Annotated[int, Query()] = 0,
+) -> list[FileShareHitView]:
+    return await shares.list_hits(pool, share_id, Page(limit=limit, offset=offset))
+
+
+@router.patch("/{share_id}")
+async def update_share(
+    pool: FromDishka[asyncpg.Pool], share_id: int, body: ShareUpdate
+) -> FileShareView:
+    current = await shares.get_share(pool, share_id)
+    if current is None:
+        raise HTTPException(status_code=404, detail="share not found")
+    expires_at = (
+        current.expires_at
+        if body.keep_expiry
+        else expiry_from_seconds(body.expires_in_seconds)
+    )
+    updated = await shares.update_share(
+        pool, share_id, expires_at=expires_at, max_downloads=body.max_downloads
+    )
+    if updated is None:
+        raise HTTPException(status_code=404, detail="share not found")
+    return updated
+
+
+@router.post("/{share_id}/revoke")
+async def revoke_share(pool: FromDishka[asyncpg.Pool], share_id: int) -> FileShareView:
+    share = await shares.revoke_share(pool, share_id)
+    if share is None:
+        raise HTTPException(status_code=404, detail="share not found")
+    return share
+
+
+@router.post("/{share_id}/reissue")
+async def reissue_share(pool: FromDishka[asyncpg.Pool], share_id: int) -> FileShareView:
+    share = await shares.rotate_token(pool, share_id)
+    if share is None:
+        raise HTTPException(status_code=404, detail="share not found")
+    return share
+
+
+@router.delete("/{share_id}", status_code=204)
+async def delete_share(pool: FromDishka[asyncpg.Pool], share_id: int) -> None:
+    if not await shares.delete_share(pool, share_id):
+        raise HTTPException(status_code=404, detail="share not found")

backend/src/api/routers/stories.py

@@ -5,6 +5,7 @@ from dishka.integrations.fastapi import DishkaRoute, FromDishka
 from fastapi import APIRouter, HTTPException, Query
 from fastapi.responses import FileResponse
 
+from utils.files import content_disposition, story_file_name
 from utils.read import peers
 from utils.read.models import DEFAULT_LIMIT, Page, StoryView
 from utils.storage import ContentAddressedStorage
@@ -36,13 +37,20 @@ async def serve_story_media(
     peer_id: int,
     story_id: int,
     account_id: AccountId,
+    download: Annotated[bool, Query()] = False,
 ) -> FileResponse:
     story = await peers.get_story(pool, account_id, peer_id, story_id)
     if story is None:
         raise HTTPException(status_code=404, detail="story not found")
     if not story.downloaded or story.storage_key is None:
         raise HTTPException(status_code=409, detail="story media not downloaded")
+    headers = {}
+    if download:
+        headers["Content-Disposition"] = content_disposition(
+            story_file_name(peer_id, story_id, story.media_kind), attachment=True
+        )
     return FileResponse(
         storage.url(story.storage_key),
         media_type=_STORY_MIME.get(story.media_kind or "", "application/octet-stream"),
+        headers=headers,
     )

backend/src/userbot/handlers/edits.py

@@ -11,7 +11,13 @@ from utils.events import notify_bg_event
 @PyroClient.on_edited_message()
 async def on_edited_message(client: PyroClient, message: Message) -> None:
     ctx = client.capture
-    if ctx is None or message.empty or message.chat is None or message.date is None:
+    if (
+        ctx is None
+        or message.empty
+        or message.scheduled
+        or message.chat is None
+        or message.date is None
+    ):
         return
     chat = message.chat
     chat_id = chat.id or 0

backend/src/userbot/handlers/messages.py

@@ -11,7 +11,13 @@ from utils.events import notify_bg_event
 @PyroClient.on_message()
 async def on_message(client: PyroClient, message: Message) -> None:
     ctx = client.capture
-    if ctx is None or message.empty or message.chat is None or message.date is None:
+    if (
+        ctx is None
+        or message.empty
+        or message.scheduled
+        or message.chat is None
+        or message.date is None
+    ):
         return
     meta = meta_from_chat(message.chat, ctx.contacts.ids)
     await ctx.watches.on_text(meta.chat_id, message.id, message.text or message.caption)

backend/src/userbot/handlers/stories.py

@@ -1,52 +1,14 @@
-from io import BytesIO
-
 from pyrogram.types import Story
 
 from userbot import PyroClient
-from userbot.modules.stories import repository
+from userbot.modules.stories.service import save_story
-
-
-def _peer_id(story: Story) -> int:
-    if story.chat is not None:
-        return story.chat.id or 0
-    if story.from_user is not None:
-        return story.from_user.id or 0
-    return 0
 
 
 @PyroClient.on_story()
 async def on_story(client: PyroClient, story: Story) -> None:
-    ctx = client.capture
+    if client.capture is None:
-    if ctx is None:
         return
-    media_kind = story.media.name.lower() if story.media else None
+    await save_story(client, client.capture, story)
-    storage_key: str | None = None
-    file_size: int | None = None
-    downloaded = False
-    if not story.deleted and story.media is not None:
-        buffer = await client.download_media(story, in_memory=True)
-        if isinstance(buffer, BytesIO):
-            data = buffer.getvalue()
-            storage_key = ctx.storage.put(data)
-            file_size = len(data)
-            downloaded = True
-    await repository.upsert_story(
-        ctx.pool,
-        ctx.account_id,
-        _peer_id(story),
-        story.id,
-        story.date,
-        story.expire_date,
-        story.caption,
-        media_kind,
-        storage_key,
-        file_size,
-        story.views,
-        str(story.raw),
-        pinned=bool(story.pinned),
-        deleted=bool(story.deleted),
-        downloaded=downloaded,
-    )
 
 
 handlers = on_story.handlers

backend/src/userbot/modules/capture/repository.py

@@ -118,6 +118,16 @@ async def upsert_message(  # noqa: PLR0913
     )
 
 
+async def max_message_id(
+    pool: asyncpg.Pool, account_id: int, chat_id: int
+) -> int | None:
+    return await pool.fetchval(
+        "SELECT max(message_id) FROM messages WHERE account_id = $1 AND chat_id = $2",
+        account_id,
+        chat_id,
+    )
+
+
 async def mark_deleted_box(
     pool: asyncpg.Pool, account_id: int, message_ids: list[int]
 ) -> None:

backend/src/userbot/modules/jobs/handlers/__init__.py

@@ -1,5 +1,6 @@
 from userbot.modules.jobs.handlers import (
     backfill,
+    backfill_stories,
     enrich_chat,
     fetch_avatar,
     fetch_custom_emoji,
@@ -12,6 +13,7 @@ from userbot.modules.jobs.handlers import (
 
 __all__ = [
     "backfill",
+    "backfill_stories",
     "enrich_chat",
     "fetch_avatar",
     "fetch_custom_emoji",

backend/src/userbot/modules/jobs/handlers/backfill.py

@@ -1,7 +1,11 @@
+from pyrogram import Client
 from pyrogram.errors import PeerIdInvalid
+from pyrogram.types import Message
 
 from userbot.modules.capture import capture_message
+from userbot.modules.capture import repository as capture_repo
 from userbot.modules.capture.chat_meta import meta_from_chat
+from userbot.modules.capture.context import CaptureContext
 from userbot.modules.jobs.context import JobContext
 from userbot.modules.jobs.registry import register
 from userbot.modules.stt import repository as stt_repo
@@ -12,6 +16,33 @@ from utils.policy.models import CaptureToggles
 SAVE_EVERY = 100
 
 
+async def resolve_min_id(ctx: JobContext, chat_id: int) -> int:
+    cursor = ctx.job.cursor or {}
+    if "min_id" in cursor:
+        return int(cursor["min_id"])
+    if ctx.job.params.get("full"):
+        return 0
+    newest = await capture_repo.max_message_id(ctx.pool, ctx.account_id, chat_id)
+    return newest + 1 if newest else 0
+
+
+async def maybe_transcribe(
+    client: Client,
+    capture: CaptureContext,
+    chat_id: int,
+    message: Message,
+    self_id: int | None,
+) -> None:
+    if not (should_transcribe_on_backfill(message, self_id) and message.chat):
+        return
+    meta = meta_from_chat(message.chat, capture.contacts.ids)
+    already = await stt_repo.is_transcribed(
+        capture.pool, capture.account_id, chat_id, message.id
+    )
+    if capture.resolve(meta).stt and not already:
+        await safe_transcribe(client, capture, chat_id, message.id)
+
+
 @register("backfill")
 async def backfill(ctx: JobContext) -> None:
     client = ctx.client
@@ -26,24 +57,21 @@ async def backfill(ctx: JobContext) -> None:
         media=bool(ctx.job.params.get("media")),
         self_destruct_media=False,
     )
-    max_id = (ctx.job.cursor or {}).get("max_id", 0)
+    max_id = int((ctx.job.cursor or {}).get("max_id", 0))
+    min_id = await resolve_min_id(ctx, chat_id)
+    await ctx.save_cursor({"max_id": max_id, "min_id": min_id})
     processed = ctx.job.progress.get("processed", 0)
-    kwargs = {"max_id": max_id} if max_id else {}
     self_id = client.me.id if client.me else None
     try:
-        async for message in client.get_chat_history(chat_id, **kwargs):
+        async for message in client.get_chat_history(
+            chat_id, max_id=max_id, min_id=min_id
+        ):
             await capture_message(client, message, capture, toggles)
-            if should_transcribe_on_backfill(message, self_id) and message.chat:
+            await maybe_transcribe(client, capture, chat_id, message, self_id)
-                meta = meta_from_chat(message.chat, capture.contacts.ids)
-                already = await stt_repo.is_transcribed(
-                    capture.pool, capture.account_id, chat_id, message.id
-                )
-                if capture.resolve(meta).stt and not already:
-                    await safe_transcribe(client, capture, chat_id, message.id)
             processed += 1
             if processed % SAVE_EVERY == 0:
                 next_max = message.id - 1
-                await ctx.save_cursor({"max_id": next_max})
+                await ctx.save_cursor({"max_id": next_max, "min_id": min_id})
                 await ctx.report_progress({"processed": processed, "max_id": next_max})
                 if await ctx.is_canceled():
                     return

backend/src/userbot/modules/jobs/handlers/backfill_stories.py

@@ -0,0 +1,70 @@
+from collections.abc import AsyncIterator, Callable
+
+from pyrogram import Client
+from pyrogram.errors import FloodPremiumWait, FloodWait, RPCError
+from pyrogram.types import Story
+
+from userbot.modules.capture.context import CaptureContext
+from userbot.modules.jobs.context import JobContext
+from userbot.modules.jobs.registry import register
+from userbot.modules.stories.service import save_story
+
+SAVE_EVERY = 10
+
+StorySource = Callable[[], AsyncIterator[Story]]
+
+
+def _sources(client: Client, peer_id: int, *, own: bool) -> dict[str, StorySource]:
+    sources: dict[str, StorySource] = {
+        "active": lambda: client.get_chat_stories(peer_id),
+        "pinned": lambda: client.get_pinned_stories(peer_id),
+    }
+    if own:
+        sources["archived"] = lambda: client.get_archived_stories(peer_id)
+    return sources
+
+
+async def _drain(
+    ctx: JobContext, capture: CaptureContext, name: str, source: StorySource
+) -> int:
+    client = ctx.client
+    if client is None:
+        return 0
+    saved = 0
+    async for story in source():
+        try:
+            await save_story(client, capture, story)
+        except (FloodWait, FloodPremiumWait):
+            raise
+        except RPCError:
+            continue
+        saved += 1
+        if saved % SAVE_EVERY == 0:
+            await ctx.report_progress({"saved": saved, "source": name})
+            if await ctx.is_canceled():
+                break
+    return saved
+
+
+@register("backfill_stories")
+async def backfill_stories(ctx: JobContext) -> None:
+    client = ctx.client
+    if client is None:
+        return
+    capture = getattr(client, "capture", None)
+    if capture is None:
+        return
+    peer_id = ctx.job.params["peer_id"]
+    own = client.me is not None and client.me.id == peer_id
+    saved = 0
+    errors: dict[str, str] = {}
+    for name, source in _sources(client, peer_id, own=own).items():
+        try:
+            saved += await _drain(ctx, capture, name, source)
+        except (FloodWait, FloodPremiumWait):
+            raise
+        except RPCError as exc:
+            errors[name] = type(exc).__name__
+        if await ctx.is_canceled():
+            break
+    await ctx.report_progress({"saved": saved, "done": True, "errors": errors})

backend/src/userbot/modules/stories/repository.py

@@ -22,6 +22,20 @@ ON CONFLICT (account_id, peer_id, story_id) DO UPDATE SET
 """
 
 
+async def is_downloaded(
+    pool: asyncpg.Pool, account_id: int, peer_id: int, story_id: int
+) -> bool:
+    return bool(
+        await pool.fetchval(
+            "SELECT downloaded FROM stories "
+            "WHERE account_id = $1 AND peer_id = $2 AND story_id = $3",
+            account_id,
+            peer_id,
+            story_id,
+        )
+    )
+
+
 async def upsert_story(  # noqa: PLR0913
     pool: asyncpg.Pool,
     account_id: int,

backend/src/userbot/modules/stories/service.py

@@ -0,0 +1,49 @@
+from io import BytesIO
+
+from pyrogram import Client
+from pyrogram.types import Story
+
+from userbot.modules.capture.context import CaptureContext
+from userbot.modules.stories import repository
+
+
+def story_peer_id(story: Story) -> int:
+    if story.chat is not None:
+        return story.chat.id or 0
+    if story.from_user is not None:
+        return story.from_user.id or 0
+    return 0
+
+
+async def save_story(client: Client, capture: CaptureContext, story: Story) -> None:
+    peer_id = story_peer_id(story)
+    storage_key: str | None = None
+    file_size: int | None = None
+    downloaded = False
+    stored = await repository.is_downloaded(
+        capture.pool, capture.account_id, peer_id, story.id
+    )
+    if not (stored or story.deleted or story.media is None):
+        buffer = await client.download_media(story, in_memory=True)
+        if isinstance(buffer, BytesIO):
+            data = buffer.getvalue()
+            storage_key = capture.storage.put(data)
+            file_size = len(data)
+            downloaded = True
+    await repository.upsert_story(
+        capture.pool,
+        capture.account_id,
+        peer_id,
+        story.id,
+        story.date,
+        story.expire_date,
+        story.caption,
+        story.media.name.lower() if story.media else None,
+        storage_key,
+        file_size,
+        story.views,
+        str(story.raw),
+        pinned=bool(story.pinned),
+        deleted=bool(story.deleted),
+        downloaded=downloaded,
+    )

backend/src/utils/cache.py

@@ -0,0 +1,4 @@
+IMMUTABLE_HEADERS = {"Cache-Control": "public, max-age=31536000, immutable"}
+DAY_HEADERS = {"Cache-Control": "public, max-age=86400"}
+SHORT_HEADERS = {"Cache-Control": "public, max-age=300"}
+NO_STORE_HEADERS = {"Cache-Control": "no-cache"}

backend/src/utils/db/models.py

@@ -493,3 +493,53 @@ class Dialog(SQLModel, table=True):
             onupdate=func.now(),
         )
     )
+
+
+class FileShare(SQLModel, table=True):
+    __tablename__ = "file_shares"
+
+    id: int | None = Field(default=None, primary_key=True)
+    account_id: int
+    token: str = Field(unique=True)
+    kind: str
+    storage_key: str
+    file_name: str
+    mime: str | None = None
+    file_size: int | None = Field(default=None, sa_column=Column(BigInteger))
+    title: str | None = None
+    chat_id: int | None = Field(default=None, sa_column=Column(BigInteger))
+    message_id: int | None = Field(default=None, sa_column=Column(BigInteger))
+    peer_id: int | None = Field(default=None, sa_column=Column(BigInteger))
+    story_id: int | None = Field(default=None, sa_column=Column(BigInteger))
+    expires_at: datetime | None = Field(
+        default=None, sa_column=Column(DateTime(timezone=True))
+    )
+    max_downloads: int | None = None
+    download_count: int = 0
+    last_download_at: datetime | None = Field(
+        default=None, sa_column=Column(DateTime(timezone=True))
+    )
+    revoked_at: datetime | None = Field(
+        default=None, sa_column=Column(DateTime(timezone=True))
+    )
+    created_at: datetime = Field(
+        sa_column=Column(
+            DateTime(timezone=True), nullable=False, server_default=func.now()
+        )
+    )
+
+
+class FileShareHit(SQLModel, table=True):
+    __tablename__ = "file_share_hits"
+
+    id: int | None = Field(default=None, sa_column=Column(BigInteger, primary_key=True))
+    share_id: int = Field(foreign_key="file_shares.id")
+    ts: datetime = Field(
+        sa_column=Column(
+            DateTime(timezone=True), nullable=False, server_default=func.now()
+        )
+    )
+    method: str
+    ip: str | None = None
+    user_agent: str | None = None
+    counted: bool = False

backend/src/utils/files.py

@@ -0,0 +1,231 @@
+import re
+from datetime import UTC, datetime, timedelta
+from urllib.parse import quote
+
+_MIME_EXTENSIONS = {
+    "application/pdf": ".pdf",
+    "application/x-tgsticker": ".tgs",
+    "application/zip": ".zip",
+    "audio/mpeg": ".mp3",
+    "audio/ogg": ".ogg",
+    "image/gif": ".gif",
+    "image/jpeg": ".jpg",
+    "image/png": ".png",
+    "image/webp": ".webp",
+    "text/plain": ".txt",
+    "video/mp4": ".mp4",
+    "video/quicktime": ".mov",
+    "video/webm": ".webm",
+}
+
+_KIND_EXTENSIONS = {
+    "animation": ".mp4",
+    "audio": ".mp3",
+    "gif": ".mp4",
+    "photo": ".jpg",
+    "sticker": ".webp",
+    "video": ".mp4",
+    "video_note": ".mp4",
+    "voice": ".ogg",
+}
+
+_EXTENSION_MIMES = {
+    ".flac": "audio/flac",
+    ".gif": "image/gif",
+    ".heic": "image/heic",
+    ".jpeg": "image/jpeg",
+    ".jpg": "image/jpeg",
+    ".m4a": "audio/mp4",
+    ".mov": "video/quicktime",
+    ".mp3": "audio/mpeg",
+    ".mp4": "video/mp4",
+    ".ogg": "audio/ogg",
+    ".pdf": "application/pdf",
+    ".png": "image/png",
+    ".svg": "image/svg+xml",
+    ".txt": "text/plain",
+    ".wav": "audio/wav",
+    ".webm": "video/webm",
+    ".webp": "image/webp",
+}
+
+_KIND_MIMES = {
+    "animation": "video/mp4",
+    "gif": "video/mp4",
+    "photo": "image/jpeg",
+    "video": "video/mp4",
+    "video_note": "video/mp4",
+    "voice": "audio/ogg",
+}
+
+_GENERIC_MIMES = {
+    "application/octet-stream",
+    "application/binary",
+    "binary/octet-stream",
+    "",
+}
+
+_INLINE_MIME_PREFIXES = ("image/", "video/", "audio/", "text/")
+_INLINE_MIMES = {"application/pdf", "application/json"}
+
+_PREVIEW_AGENTS = (
+    "telegrambot",
+    "twitterbot",
+    "facebookexternalhit",
+    "whatsapp",
+    "discordbot",
+    "slackbot",
+    "skypeuripreview",
+    "vkshare",
+    "redditbot",
+    "linkedinbot",
+    "embedly",
+    "quora link preview",
+    "googlebot",
+    "bingbot",
+    "applebot",
+    "yandexbot",
+    "duckduckbot",
+    "petalbot",
+    "ahrefsbot",
+    "semrushbot",
+    "headlesschrome",
+    "python-requests",
+)
+
+_TRANSLIT = {
+    "а": "a",
+    "б": "b",
+    "в": "v",
+    "г": "g",
+    "д": "d",
+    "е": "e",
+    "ё": "e",
+    "ж": "zh",
+    "з": "z",
+    "и": "i",
+    "й": "y",
+    "к": "k",
+    "л": "l",
+    "м": "m",
+    "н": "n",
+    "о": "o",
+    "п": "p",
+    "р": "r",
+    "с": "s",
+    "т": "t",
+    "у": "u",
+    "ф": "f",
+    "х": "h",
+    "ц": "c",
+    "ч": "ch",
+    "ш": "sh",
+    "щ": "sch",
+    "ъ": "",
+    "ы": "y",
+    "ь": "",
+    "э": "e",
+    "ю": "yu",
+    "я": "ya",
+}
+
+_URL_UNSAFE = re.compile(r"[^A-Za-z0-9._-]+")
+_URL_REPEATS = re.compile(r"_{2,}")
+
+_UNSAFE_CHARS = re.compile(r'[\\/:*?"<>|\x00-\x1f]+')
+_SPACES = re.compile(r"\s+")
+_NAME_LIMIT = 120
+
+
+def extension_for(kind: str | None, mime: str | None) -> str:
+    if mime and mime in _MIME_EXTENSIONS:
+        return _MIME_EXTENSIONS[mime]
+    if kind and kind in _KIND_EXTENSIONS:
+        return _KIND_EXTENSIONS[kind]
+    if mime and "/" in mime:
+        tail = mime.rsplit("/", 1)[1].split(";")[0].strip()
+        if tail.isalnum():
+            return f".{tail}"
+    return ".bin"
+
+
+def sanitize_name(name: str) -> str:
+    cleaned = _SPACES.sub(" ", _UNSAFE_CHARS.sub("_", name)).strip(" .")
+    if len(cleaned) > _NAME_LIMIT:
+        head, dot, tail = cleaned.rpartition(".")
+        cleaned = (
+            f"{head[: _NAME_LIMIT - len(tail) - 1]}{dot}{tail}"
+            if dot and len(tail) < 12  # noqa: PLR2004
+            else cleaned[:_NAME_LIMIT]
+        )
+    return cleaned or "file"
+
+
+def url_slug(file_name: str) -> str:
+    lowered = "".join(
+        _TRANSLIT.get(ch, _TRANSLIT.get(ch.lower(), ch)) for ch in file_name
+    )
+    slug = _URL_REPEATS.sub("_", _URL_UNSAFE.sub("_", lowered)).strip("_.")
+    if not slug:
+        return "file"
+    return slug[:_NAME_LIMIT]
+
+
+def media_file_name(
+    kind: str | None, mime: str | None, message_id: int, original: str | None = None
+) -> str:
+    if original:
+        name = sanitize_name(original)
+        return name if "." in name else f"{name}{extension_for(kind, mime)}"
+    return f"{kind or 'media'}_{message_id}{extension_for(kind, mime)}"
+
+
+def story_file_name(peer_id: int, story_id: int, media_kind: str | None) -> str:
+    return f"story_{peer_id}_{story_id}{extension_for(media_kind or 'photo', None)}"
+
+
+def resolve_mime(
+    kind: str | None, mime: str | None, file_name: str | None = None
+) -> str:
+    if mime and mime.lower() not in _GENERIC_MIMES:
+        return mime
+    if file_name and "." in file_name:
+        by_extension = _EXTENSION_MIMES.get(f".{file_name.rsplit('.', 1)[1].lower()}")
+        if by_extension:
+            return by_extension
+    return _KIND_MIMES.get(kind or "", mime or "application/octet-stream")
+
+
+def is_inline_mime(mime: str | None) -> bool:
+    if not mime:
+        return False
+    return mime in _INLINE_MIMES or mime.startswith(_INLINE_MIME_PREFIXES)
+
+
+def content_disposition(file_name: str, *, attachment: bool) -> str:
+    kind = "attachment" if attachment else "inline"
+    ascii_name = file_name.encode("ascii", "replace").decode("ascii").replace('"', "_")
+    return f"{kind}; filename=\"{ascii_name}\"; filename*=UTF-8''{quote(file_name)}"
+
+
+def is_preview_agent(user_agent: str | None) -> bool:
+    if not user_agent:
+        return False
+    lowered = user_agent.lower()
+    return any(marker in lowered for marker in _PREVIEW_AGENTS)
+
+
+def counts_as_download(
+    method: str, user_agent: str | None, range_header: str | None
+) -> bool:
+    if method.upper() != "GET" or is_preview_agent(user_agent):
+        return False
+    if range_header is None:
+        return True
+    return range_header.replace(" ", "").startswith("bytes=0-")
+
+
+def expiry_from_seconds(seconds: int | None) -> datetime | None:
+    if seconds is None or seconds <= 0:
+        return None
+    return datetime.now(UTC) + timedelta(seconds=seconds)

backend/src/utils/policy/repository.py

@@ -85,6 +85,18 @@ async def list_folders(pool: asyncpg.Pool, account_id: int) -> list[FolderSpec]:
     return [_row_to_folder(row) for row in rows]
 
 
+async def get_folder(
+    pool: asyncpg.Pool, account_id: int, folder_id: int
+) -> FolderSpec | None:
+    row = await pool.fetchrow(
+        "SELECT folder_id, title, order_index, is_chatlist, raw "
+        "FROM folders WHERE account_id = $1 AND folder_id = $2",
+        account_id,
+        folder_id,
+    )
+    return _row_to_folder(row) if row else None
+
+
 async def create_policy(
     pool: asyncpg.Pool,
     account_id: int | None,

backend/src/utils/read/chats.py

@@ -1,5 +1,6 @@
 import asyncpg
 
+from utils.policy.models import FolderSpec
 from utils.read.accounts import self_user_id
 from utils.read.message_view import build_message_view, load_raw, media_ref_from
 from utils.read.models import (
@@ -43,69 +44,88 @@ def _single_media(
     return [ref] if ref else []
 
 
-def _peer_title(
+_ALL_IDS = """
-    first: str | None, last: str | None, username: str | None
+    SELECT chat_id FROM chat_stats WHERE account_id = $1
-) -> str | None:
+    UNION
-    name = " ".join(part for part in (first, last) if part)
+    SELECT chat_id FROM dialogs WHERE account_id = $1
-    return name or username
+    UNION
+    SELECT scope_id AS chat_id FROM capture_policy
+    WHERE account_id = $1 AND scope_type = 'chat' AND scope_id IS NOT NULL
+"""
+
+_ONE_ID = """
+    SELECT chat_id FROM chat_stats WHERE account_id = $1 AND chat_id = $2
+    UNION
+    SELECT chat_id FROM dialogs WHERE account_id = $1 AND chat_id = $2
+    UNION
+    SELECT scope_id AS chat_id FROM capture_policy
+    WHERE account_id = $1 AND scope_type = 'chat' AND scope_id = $2
+"""
+
+_CHAT_ROWS = """
+WITH ids AS ({ids})
+SELECT ids.chat_id,
+       COALESCE(cs.message_count, 0) AS message_count,
+       cs.last_date, cs.last_text, cs.last_sender_id,
+       COALESCE(named.title,
+                NULLIF(trim(concat_ws(' ', p.first_name, p.last_name)), ''),
+                p.username) AS title,
+       COALESCE(typed.is_broadcast, false) AS is_broadcast,
+       COALESCE((p.raw->>'is_bot')::bool, (p.raw->>'bot')::bool,
+                p.raw->>'type' = 'ChatType.BOT', false) AS is_bot,
+       COALESCE((p.raw->>'is_contact')::bool, (p.raw->>'contact')::bool,
+                false) AS is_contact,
+       EXISTS (SELECT 1 FROM avatars a
+               WHERE a.account_id = $1 AND a.owner_id = ids.chat_id) AS has_avatar
+FROM ids
+LEFT JOIN chat_stats cs ON cs.account_id = $1 AND cs.chat_id = ids.chat_id
+LEFT JOIN peers p ON p.account_id = $1 AND p.peer_id = ids.chat_id
+LEFT JOIN LATERAL (
+    SELECT ch.title FROM chat_history ch
+    WHERE ch.account_id = $1 AND ch.chat_id = ids.chat_id AND ch.title IS NOT NULL
+    ORDER BY ch.ts DESC LIMIT 1
+) named ON true
+LEFT JOIN LATERAL (
+    SELECT COALESCE(ch.raw->'chat'->>'type', ch.raw->>'type')
+           = 'ChatType.CHANNEL' AS is_broadcast
+    FROM chat_history ch
+    WHERE ch.account_id = $1 AND ch.chat_id = ids.chat_id
+      AND COALESCE(ch.raw->'chat'->>'type', ch.raw->>'type') IS NOT NULL
+    ORDER BY ch.ts DESC LIMIT 1
+) typed ON true
+"""
 
 
-async def list_chats(
+def _folder_filter(base: int) -> str:
-    pool: asyncpg.Pool, account_id: int, page: Page
+    return (
-) -> list[ChatListItem]:
+        f"NOT (chat.chat_id = ANY(${base + 1}::bigint[])) "
-    rows = await pool.fetch(
+        f"AND (chat.chat_id = ANY(${base + 2}::bigint[]) "
-        "WITH ids AS ("
+        f"OR (NOT ${base + 3}::bool AND CASE "
-        "SELECT DISTINCT chat_id FROM messages WHERE account_id = $1 "
+        f"WHEN chat.is_broadcast THEN ${base + 4}::bool "
-        "UNION SELECT chat_id FROM dialogs WHERE account_id = $1 "
+        f"WHEN chat.chat_id < 0 THEN ${base + 5}::bool "
-        "UNION SELECT scope_id FROM capture_policy WHERE account_id = $1 "
+        f"WHEN chat.is_bot THEN ${base + 6}::bool "
-        "AND scope_type = 'chat' AND scope_id IS NOT NULL), "
+        f"WHEN chat.is_contact THEN ${base + 7}::bool "
-        "agg AS (SELECT chat_id, count(*) AS message_count, max(date) AS last_date "
+        f"ELSE ${base + 8}::bool END))"
-        "FROM messages WHERE account_id = $1 GROUP BY chat_id) "
-        "SELECT ids.chat_id, COALESCE(agg.message_count, 0) AS message_count, "
-        "agg.last_date AS last_date, "
-        "(SELECT p.first_name FROM peers p "
-        "WHERE p.account_id = $1 AND p.peer_id = ids.chat_id) AS first_name, "
-        "(SELECT p.last_name FROM peers p "
-        "WHERE p.account_id = $1 AND p.peer_id = ids.chat_id) AS last_name, "
-        "(SELECT p.username FROM peers p "
-        "WHERE p.account_id = $1 AND p.peer_id = ids.chat_id) AS username, "
-        "(SELECT ch.title FROM chat_history ch "
-        "WHERE ch.account_id = $1 AND ch.chat_id = ids.chat_id "
-        "AND ch.title IS NOT NULL ORDER BY ch.ts DESC LIMIT 1) AS group_title, "
-        "EXISTS (SELECT 1 FROM avatars a "
-        "WHERE a.account_id = $1 AND a.owner_id = ids.chat_id) AS has_avatar, "
-        "(SELECT COALESCE((p.raw->>'is_bot')::bool, (p.raw->>'bot')::bool, "
-        "p.raw->>'type' = 'ChatType.BOT', false) "
-        "FROM peers p WHERE p.account_id = $1 AND p.peer_id = ids.chat_id) AS is_bot, "
-        "(SELECT COALESCE((p.raw->>'is_contact')::bool, (p.raw->>'contact')::bool, "
-        "false) FROM peers p "
-        "WHERE p.account_id = $1 AND p.peer_id = ids.chat_id) AS is_contact, "
-        "(SELECT COALESCE(ch.raw->'chat'->>'type', ch.raw->>'type') "
-        "= 'ChatType.CHANNEL' FROM chat_history ch "
-        "WHERE ch.account_id = $1 AND ch.chat_id = ids.chat_id "
-        "AND COALESCE(ch.raw->'chat'->>'type', ch.raw->>'type') IS NOT NULL "
-        "ORDER BY ch.ts DESC LIMIT 1) AS is_broadcast, "
-        "(SELECT lm.text FROM messages lm "
-        "WHERE lm.account_id = $1 AND lm.chat_id = ids.chat_id "
-        "ORDER BY lm.date DESC, lm.message_id DESC LIMIT 1) AS last_text, "
-        "(SELECT lm.sender_id FROM messages lm "
-        "WHERE lm.account_id = $1 AND lm.chat_id = ids.chat_id "
-        "ORDER BY lm.date DESC, lm.message_id DESC LIMIT 1) AS last_sender_id "
-        "FROM ids LEFT JOIN agg ON agg.chat_id = ids.chat_id "
-        "ORDER BY last_date DESC NULLS LAST, ids.chat_id DESC LIMIT $2 OFFSET $3",
-        account_id,
-        page.capped_limit,
-        page.offset,
     )
-    items = []
+
-    for row in rows:
+
-        title = row["group_title"] or _peer_title(
+def _folder_params(folder: FolderSpec) -> list[object]:
-            row["first_name"], row["last_name"], row["username"]
+    return [
-        )
+        sorted(folder.exclude_ids),
-        items.append(
+        sorted(folder.include_ids | folder.pinned_ids),
-            ChatListItem(
+        folder.is_chatlist,
+        folder.broadcasts,
+        folder.groups,
+        folder.bots,
+        folder.contacts,
+        folder.non_contacts,
+    ]
+
+
+def _chat_item(row: asyncpg.Record) -> ChatListItem:
+    return ChatListItem(
         chat_id=row["chat_id"],
-                title=title,
+        title=row["title"],
         kind="private" if row["chat_id"] > 0 else "group",
         has_avatar=row["has_avatar"],
         is_bot=bool(row["is_bot"]),
@@ -116,8 +136,39 @@ async def list_chats(
         last_text=row["last_text"],
         last_sender_id=row["last_sender_id"],
     )
+
+
+async def list_chats(
+    pool: asyncpg.Pool,
+    account_id: int,
+    page: Page,
+    *,
+    folder: FolderSpec | None = None,
+    search: str | None = None,
+) -> list[ChatListItem]:
+    params: list[object] = [account_id, page.capped_limit, page.offset]
+    rows_sql = _CHAT_ROWS.format(ids=_ALL_IDS)
+    clauses: list[str] = []
+    if folder is not None:
+        clauses.append(_folder_filter(len(params)))
+        params.extend(_folder_params(folder))
+    if search:
+        params.append(f"%{search}%")
+        clauses.append(f"chat.title ILIKE ${len(params)}")
+    where = f" WHERE {' AND '.join(clauses)}" if clauses else ""
+    query = (
+        f"SELECT chat.* FROM ({rows_sql}) chat{where} "  # noqa: S608
+        "ORDER BY last_date DESC NULLS LAST, chat_id DESC LIMIT $2 OFFSET $3"
     )
-    return items
+    rows = await pool.fetch(query, *params)
+    return [_chat_item(row) for row in rows]
+
+
+async def get_chat(
+    pool: asyncpg.Pool, account_id: int, chat_id: int
+) -> ChatListItem | None:
+    row = await pool.fetchrow(_CHAT_ROWS.format(ids=_ONE_ID), account_id, chat_id)
+    return _chat_item(row) if row is not None else None
 
 
 async def get_chat_history(  # noqa: PLR0913

backend/src/utils/read/media.py

@@ -1,18 +1,41 @@
 import asyncpg
 
+from utils.files import media_file_name
 from utils.read.message_view import load_raw
 from utils.read.models import MediaVersionView, MediaView
 
-_MEDIA_COLS = (
+MEDIA_COLS = (
-    "id, account_id, chat_id, message_id, kind, storage_key, file_size, "
+    "m.id, m.account_id, m.chat_id, m.message_id, m.kind, m.storage_key, "
-    "mime, ttl_seconds, downloaded, extracted_text, created_at"
+    "m.file_size, m.mime, m.ttl_seconds, m.downloaded, m.extracted_text, "
+    "m.created_at, src.original_name"
 )
 
+ORIGINAL_NAME_JOIN = """
+LEFT JOIN LATERAL (
+    SELECT msg.raw->m.kind->>'file_name' AS original_name
+    FROM messages msg
+    WHERE msg.account_id = m.account_id AND msg.chat_id = m.chat_id
+      AND msg.message_id = m.message_id
+    ORDER BY msg.date DESC LIMIT 1
+) src ON true
+"""
+
 _VERSION_COLS = "id, kind, storage_key, file_size, mime, observed_at"
 
 _WEB_PAGE_MEDIA_KINDS = ("photo", "video", "animation", "document", "audio")
 
 
+def media_view(row: asyncpg.Record) -> MediaView:
+    fields = dict(row)
+    original = fields.pop("original_name", None)
+    return MediaView(
+        **fields,
+        file_name=media_file_name(
+            fields["kind"], fields["mime"], fields["message_id"], original
+        ),
+    )
+
+
 async def _web_page_media_stub(
     pool: asyncpg.Pool, account_id: int, chat_id: int, message_id: int
 ) -> MediaView | None:
@@ -47,29 +70,32 @@ async def _web_page_media_stub(
         downloaded=False,
         extracted_text=None,
         created_at=row["date"],
+        file_name=media_file_name(
+            kind, obj.get("mime_type"), message_id, obj.get("file_name")
+        ),
     )
 
 
 async def get_media(pool: asyncpg.Pool, media_id: int) -> MediaView | None:
     row = await pool.fetchrow(
-        f"SELECT {_MEDIA_COLS} FROM media WHERE id = $1",  # noqa: S608
+        f"SELECT {MEDIA_COLS} FROM media m {ORIGINAL_NAME_JOIN} WHERE m.id = $1",  # noqa: S608
         media_id,
     )
-    return MediaView(**dict(row)) if row else None
+    return media_view(row) if row else None
 
 
 async def get_message_media(
     pool: asyncpg.Pool, account_id: int, chat_id: int, message_id: int
 ) -> MediaView | None:
     row = await pool.fetchrow(
-        f"SELECT {_MEDIA_COLS} FROM media "  # noqa: S608
+        f"SELECT {MEDIA_COLS} FROM media m {ORIGINAL_NAME_JOIN} "  # noqa: S608
-        "WHERE account_id = $1 AND chat_id = $2 AND message_id = $3",
+        "WHERE m.account_id = $1 AND m.chat_id = $2 AND m.message_id = $3",
         account_id,
         chat_id,
         message_id,
     )
     if row is not None:
-        return MediaView(**dict(row))
+        return media_view(row)
     return await _web_page_media_stub(pool, account_id, chat_id, message_id)
 
 

backend/src/utils/read/message_view.py

@@ -5,6 +5,7 @@ from typing import Any
 import asyncpg
 from pydantic import ValidationError
 
+from utils.files import media_file_name
 from utils.read.models import (
     ContactView,
     EntityView,
@@ -344,6 +345,7 @@ def media_ref_from(
     obj = obj if isinstance(obj, dict) else {}
     width = obj.get("width") or obj.get("length")
     height = obj.get("height") or obj.get("length")
+    mime = (media_row["mime"] if media_row else None) or obj.get("mime_type")
     return MediaRef(
         message_id=message_id,
         id=media_row["id"] if media_row else None,
@@ -352,11 +354,12 @@ def media_ref_from(
         width=width,
         height=height,
         duration=obj.get("duration"),
-        mime=(media_row["mime"] if media_row else None) or obj.get("mime_type"),
+        mime=mime,
         file_size=(media_row["file_size"] if media_row else None)
         or obj.get("file_size"),
         ttl_seconds=media_row["ttl_seconds"] if media_row else None,
         extracted_text=media_row["extracted_text"] if media_row else None,
+        file_name=media_file_name(kind, mime, message_id, obj.get("file_name")),
     )
 
 

backend/src/utils/read/models.py

@@ -92,6 +92,7 @@ class MediaRef(BaseModel):
     file_size: int | None = None
     ttl_seconds: int | None = None
     extracted_text: str | None = None
+    file_name: str | None = None
 
 
 class ReactionCount(BaseModel):
@@ -222,6 +223,7 @@ class MediaView(BaseModel):
     downloaded: bool
     extracted_text: str | None
     created_at: datetime
+    file_name: str | None = None
 
 
 class MediaVersionView(BaseModel):
@@ -391,3 +393,33 @@ class AlertView(BaseModel):
     payload: dict[str, Any]
     seen: bool
     created_at: datetime
+
+
+class FileShareView(BaseModel):
+    id: int
+    account_id: int
+    token: str
+    kind: str
+    file_name: str
+    url_name: str
+    mime: str | None
+    file_size: int | None
+    title: str | None
+    chat_id: int | None
+    message_id: int | None
+    peer_id: int | None
+    story_id: int | None
+    expires_at: datetime | None
+    max_downloads: int | None
+    download_count: int
+    last_download_at: datetime | None
+    revoked_at: datetime | None
+    created_at: datetime
+
+
+class FileShareHitView(BaseModel):
+    ts: datetime
+    method: str
+    ip: str | None
+    user_agent: str | None
+    counted: bool

backend/src/utils/read/profile.py

@@ -3,28 +3,24 @@ from datetime import datetime, timedelta
 import asyncpg
 
 from utils.read.accounts import self_user_id
+from utils.read.media import MEDIA_COLS, ORIGINAL_NAME_JOIN, media_view
 from utils.read.models import ChatLinkView, DayCount, MediaView, MessageAt, Page
 
-_MEDIA_COLS = (
-    "id, account_id, chat_id, message_id, kind, storage_key, file_size, "
-    "mime, ttl_seconds, downloaded, extracted_text, created_at"
-)
-
 
 async def chat_media(
     pool: asyncpg.Pool, account_id: int, chat_id: int, kinds: list[str], page: Page
 ) -> list[MediaView]:
     rows = await pool.fetch(
-        f"SELECT {_MEDIA_COLS} FROM media "  # noqa: S608
+        f"SELECT {MEDIA_COLS} FROM media m {ORIGINAL_NAME_JOIN} "  # noqa: S608
-        "WHERE account_id = $1 AND chat_id = $2 AND kind = ANY($3) "
+        "WHERE m.account_id = $1 AND m.chat_id = $2 AND m.kind = ANY($3) "
-        "ORDER BY message_id DESC LIMIT $4 OFFSET $5",
+        "ORDER BY m.message_id DESC LIMIT $4 OFFSET $5",
         account_id,
         chat_id,
         kinds,
         page.capped_limit,
         page.offset,
     )
-    return [MediaView(**dict(row)) for row in rows]
+    return [media_view(row) for row in rows]
 
 
 async def chat_links(

backend/src/utils/read/shares.py

@@ -0,0 +1,207 @@
+import secrets
+from datetime import datetime
+
+import asyncpg
+
+from utils.files import url_slug
+from utils.read.models import FileShareHitView, FileShareView, Page
+
+_COLS = (
+    "id, account_id, token, kind, file_name, mime, file_size, title, "
+    "chat_id, message_id, peer_id, story_id, expires_at, max_downloads, "
+    "download_count, last_download_at, revoked_at, created_at"
+)
+
+_TOKEN_ALPHABET = "abcdefghijkmnpqrstuvwxyz23456789"  # noqa: S105
+_TOKEN_LENGTH = 10
+
+_SERVE = """
+SELECT id, kind, storage_key, file_name, mime, expires_at, max_downloads,
+       download_count, revoked_at
+FROM file_shares WHERE token = $1
+"""
+
+_INSERT = (
+    "INSERT INTO file_shares "  # noqa: S608
+    "(account_id, token, kind, storage_key, file_name, mime, file_size, title, "
+    "chat_id, message_id, peer_id, story_id, expires_at, max_downloads) "
+    "VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14) "
+    f"RETURNING {_COLS}"
+)
+
+_ACTIVE = "revoked_at IS NULL AND (expires_at IS NULL OR expires_at > now())"
+
+_LOOKUP = (
+    f"SELECT {_COLS} FROM file_shares "  # noqa: S608
+    f"WHERE account_id = $1 AND storage_key = $2 AND {_ACTIVE} "
+    "AND (max_downloads IS NULL OR download_count < max_downloads) "
+    "ORDER BY created_at DESC LIMIT 1"
+)
+
+_CONSUME = """
+UPDATE file_shares
+SET download_count = download_count + 1, last_download_at = now()
+WHERE id = $1 AND (max_downloads IS NULL OR download_count < max_downloads)
+RETURNING download_count
+"""
+
+
+def new_token() -> str:
+    return "".join(secrets.choice(_TOKEN_ALPHABET) for _ in range(_TOKEN_LENGTH))
+
+
+def _view(row: asyncpg.Record) -> FileShareView:
+    fields = dict(row)
+    return FileShareView(**fields, url_name=url_slug(fields["file_name"]))
+
+
+async def list_shares(
+    pool: asyncpg.Pool, account_id: int, page: Page, *, active_only: bool = False
+) -> list[FileShareView]:
+    where = "account_id = $1"
+    if active_only:
+        where += f" AND {_ACTIVE}"
+    rows = await pool.fetch(
+        f"SELECT {_COLS} FROM file_shares WHERE {where} "  # noqa: S608
+        "ORDER BY created_at DESC LIMIT $2 OFFSET $3",
+        account_id,
+        page.capped_limit,
+        page.offset,
+    )
+    return [_view(row) for row in rows]
+
+
+async def get_share(pool: asyncpg.Pool, share_id: int) -> FileShareView | None:
+    row = await pool.fetchrow(
+        f"SELECT {_COLS} FROM file_shares WHERE id = $1",  # noqa: S608
+        share_id,
+    )
+    return _view(row) if row else None
+
+
+async def find_active_share(
+    pool: asyncpg.Pool, account_id: int, storage_key: str
+) -> FileShareView | None:
+    row = await pool.fetchrow(_LOOKUP, account_id, storage_key)
+    return _view(row) if row else None
+
+
+async def create_share(  # noqa: PLR0913
+    pool: asyncpg.Pool,
+    account_id: int,
+    kind: str,
+    storage_key: str,
+    file_name: str,
+    *,
+    mime: str | None = None,
+    file_size: int | None = None,
+    title: str | None = None,
+    chat_id: int | None = None,
+    message_id: int | None = None,
+    peer_id: int | None = None,
+    story_id: int | None = None,
+    expires_at: datetime | None = None,
+    max_downloads: int | None = None,
+) -> FileShareView:
+    row = await pool.fetchrow(
+        _INSERT,
+        account_id,
+        new_token(),
+        kind,
+        storage_key,
+        file_name,
+        mime,
+        file_size,
+        title,
+        chat_id,
+        message_id,
+        peer_id,
+        story_id,
+        expires_at,
+        max_downloads,
+    )
+    return _view(row)
+
+
+async def update_share(
+    pool: asyncpg.Pool,
+    share_id: int,
+    *,
+    expires_at: datetime | None,
+    max_downloads: int | None,
+) -> FileShareView | None:
+    row = await pool.fetchrow(
+        "UPDATE file_shares SET expires_at = $2, max_downloads = $3 "  # noqa: S608
+        f"WHERE id = $1 RETURNING {_COLS}",
+        share_id,
+        expires_at,
+        max_downloads,
+    )
+    return _view(row) if row else None
+
+
+async def revoke_share(pool: asyncpg.Pool, share_id: int) -> FileShareView | None:
+    row = await pool.fetchrow(
+        "UPDATE file_shares SET revoked_at = now() "  # noqa: S608
+        f"WHERE id = $1 AND revoked_at IS NULL RETURNING {_COLS}",
+        share_id,
+    )
+    if row is not None:
+        return _view(row)
+    return await get_share(pool, share_id)
+
+
+async def delete_share(pool: asyncpg.Pool, share_id: int) -> bool:
+    result = await pool.execute("DELETE FROM file_shares WHERE id = $1", share_id)
+    return result.endswith("1")
+
+
+async def rotate_token(pool: asyncpg.Pool, share_id: int) -> FileShareView | None:
+    row = await pool.fetchrow(
+        "UPDATE file_shares SET token = $2, revoked_at = NULL "  # noqa: S608
+        f"WHERE id = $1 RETURNING {_COLS}",
+        share_id,
+        new_token(),
+    )
+    return _view(row) if row else None
+
+
+async def share_by_token(pool: asyncpg.Pool, token: str) -> asyncpg.Record | None:
+    return await pool.fetchrow(_SERVE, token)
+
+
+async def consume_download(pool: asyncpg.Pool, share_id: int) -> bool:
+    return await pool.fetchval(_CONSUME, share_id) is not None
+
+
+async def record_hit(  # noqa: PLR0913
+    pool: asyncpg.Pool,
+    share_id: int,
+    method: str,
+    ip: str | None,
+    user_agent: str | None,
+    *,
+    counted: bool,
+) -> None:
+    await pool.execute(
+        "INSERT INTO file_share_hits (share_id, method, ip, user_agent, counted) "
+        "VALUES ($1, $2, $3, $4, $5)",
+        share_id,
+        method,
+        ip,
+        user_agent,
+        counted,
+    )
+
+
+async def list_hits(
+    pool: asyncpg.Pool, share_id: int, page: Page
+) -> list[FileShareHitView]:
+    rows = await pool.fetch(
+        "SELECT ts, method, ip, user_agent, counted FROM file_share_hits "
+        "WHERE share_id = $1 ORDER BY ts DESC LIMIT $2 OFFSET $3",
+        share_id,
+        page.capped_limit,
+        page.offset,
+    )
+    return [FileShareHitView(**dict(row)) for row in rows]

frontend/bun.lock

@@ -1,5 +1,6 @@
 {
   "lockfileVersion": 1,
+  "configVersion": 0,
   "workspaces": {
     "": {
       "name": "frontend",

frontend/src/lib/api/avatars.ts

@@ -6,6 +6,8 @@ const RETRY_DELAY = 2500;
 
 export type AvatarKind = "peer" | "chat";
 
+const MAX_CACHED = 240;
+
 const ready = new Map<string, string>();
 const missing = new Set<string>();
 const inflight = new Map<string, Promise<string | null>>();
@@ -14,6 +16,21 @@ function cacheKey(account: number, kind: AvatarKind, id: number): string {
   return `${account}:${kind}:${id}`;
 }
 
+function remember(key: string, url: string) {
+  ready.set(key, url);
+  while (ready.size > MAX_CACHED) {
+    const oldest = ready.keys().next();
+    if (oldest.done) {
+      return;
+    }
+    const stale = ready.get(oldest.value);
+    ready.delete(oldest.value);
+    if (stale) {
+      URL.revokeObjectURL(stale);
+    }
+  }
+}
+
 function authHeaders(): Record<string, string> {
   return auth.token ? { Authorization: `Bearer ${auth.token}` } : {};
 }
@@ -35,7 +52,7 @@ async function fetchAvatar(
   const response = await fetch(url, { headers: authHeaders() });
   if (response.ok) {
     const objectUrl = URL.createObjectURL(await response.blob());
-    ready.set(key, objectUrl);
+    remember(key, objectUrl);
     return objectUrl;
   }
   if (response.status === 409 && retry) {
@@ -85,7 +102,7 @@ async function fetchVariant(
   const response = await fetch(url, { headers: authHeaders() });
   if (response.ok) {
     const objectUrl = URL.createObjectURL(await response.blob());
-    ready.set(key, objectUrl);
+    remember(key, objectUrl);
     return objectUrl;
   }
   if (response.status === 409 && retry) {

frontend/src/lib/api/download.ts

@@ -0,0 +1,61 @@
+import { accounts } from "$lib/stores/accounts.svelte";
+import { auth } from "$lib/stores/auth.svelte";
+
+const BASE = import.meta.env.VITE_API_BASE ?? "/api";
+const FILENAME_STAR = /filename\*=UTF-8''([^;]+)/i;
+const FILENAME_PLAIN = /filename="?([^";]+)"?/i;
+
+function nameFromHeader(header: string | null, fallback: string): string {
+  if (!header) {
+    return fallback;
+  }
+  const encoded = FILENAME_STAR.exec(header);
+  if (encoded) {
+    return decodeURIComponent(encoded[1]);
+  }
+  const plain = FILENAME_PLAIN.exec(header);
+  return plain ? plain[1] : fallback;
+}
+
+function saveBlob(blob: Blob, fileName: string) {
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement("a");
+  link.href = url;
+  link.download = fileName;
+  document.body.append(link);
+  link.click();
+  link.remove();
+  setTimeout(() => URL.revokeObjectURL(url), 1000);
+}
+
+async function save(path: string, fallback: string): Promise<void> {
+  const response = await fetch(`${BASE}${path}`, {
+    headers: auth.token ? { Authorization: `Bearer ${auth.token}` } : {},
+  });
+  if (!response.ok) {
+    throw new Error(`download failed: ${response.status}`);
+  }
+  const fileName = nameFromHeader(
+    response.headers.get("content-disposition"),
+    fallback
+  );
+  saveBlob(await response.blob(), fileName);
+}
+
+export function downloadMedia(mediaId: number): Promise<void> {
+  return save(`/media/${mediaId}?download=true`, `media_${mediaId}`);
+}
+
+export function downloadMediaVersion(versionId: number): Promise<void> {
+  return save(
+    `/media/version/${versionId}?download=true`,
+    `media_${versionId}`
+  );
+}
+
+export function downloadStory(peerId: number, storyId: number): Promise<void> {
+  return save(
+    `/stories/${peerId}/${storyId}/media?download=true&account_id=${accounts.selectedId}`,
+    `story_${peerId}_${storyId}`
+  );
+}

frontend/src/lib/api/endpoints.ts

@@ -99,10 +99,19 @@ export function logoutAccount(accountId: number): Promise<void> {
   return request<void>(`/accounts/${accountId}`, { method: "DELETE" });
 }
 
-export function listChats(page: Page = {}): Promise<Chat[]> {
+interface ChatPage extends Page {
+  folder_id?: number;
+  search?: string;
+}
+
+export function listChats(page: ChatPage = {}): Promise<Chat[]> {
   return request<Chat[]>("/chats", { account: true, query: { ...page } });
 }
 
+export function getChat(chatId: number): Promise<Chat | null> {
+  return request<Chat | null>(`/chats/${chatId}`, { account: true });
+}
+
 export function listFolders(): Promise<Folder[]> {
   return request<Folder[]>("/folders", { account: true });
 }
@@ -306,7 +315,7 @@ export function getMessageAt(chatId: number, date: string): Promise<MessageAt> {
 }
 
 export function getStories(
-  peerId: number,
+  peerId: number | null,
   page: Page = {}
 ): Promise<StoryView[]> {
   return request<StoryView[]>("/stories", {
@@ -349,11 +358,21 @@ export function listJobs(status?: JobStatus): Promise<JobView[]> {
 
 export function enqueueBackfill(
   chatId: number,
-  media: boolean
+  media: boolean,
+  full = false
 ): Promise<{ job_id: number }> {
   return request<{ job_id: number }>("/backfill", {
     method: "POST",
-    body: { account_id: accounts.selectedId, chat_id: chatId, media },
+    body: { account_id: accounts.selectedId, chat_id: chatId, media, full },
+  });
+}
+
+export function enqueueStoriesBackfill(
+  peerId: number
+): Promise<{ job_id: number }> {
+  return request<{ job_id: number }>("/stories/backfill", {
+    method: "POST",
+    body: { account_id: accounts.selectedId, peer_id: peerId },
   });
 }
 

frontend/src/lib/api/media.ts

@@ -20,9 +20,12 @@ export type InlineMedia =
 
 export interface ViewerItem {
   downloaded: boolean;
+  fileName: string | null;
+  fileSize: number | null;
   kind: string;
   mediaId: number | null;
   messageId: number;
+  mime: string | null;
 }
 
 export function viewerItemsFrom(
@@ -30,16 +33,49 @@ export function viewerItemsFrom(
   media: MediaRef[]
 ): ViewerItem[] {
   if (media.length === 0) {
-    return [{ messageId, mediaId: null, kind: "", downloaded: false }];
+    return [
+      {
+        messageId,
+        mediaId: null,
+        kind: "",
+        downloaded: false,
+        fileName: null,
+        fileSize: null,
+        mime: null,
+      },
+    ];
   }
   return media.map((item) => ({
     messageId: item.message_id,
     mediaId: item.id,
     kind: item.kind,
     downloaded: item.downloaded,
+    fileName: item.file_name,
+    fileSize: item.file_size,
+    mime: item.mime,
   }));
 }
 
+const PREVIEW_KINDS = new Set([
+  "photo",
+  "video",
+  "video_note",
+  "animation",
+  "gif",
+  "sticker",
+  "voice",
+  "audio",
+]);
+
+const PREVIEW_MIME_PREFIXES = ["image/", "video/", "audio/"];
+
+export function isPreviewable(kind: string, mime: string | null): boolean {
+  if (PREVIEW_KINDS.has(kind)) {
+    return true;
+  }
+  return PREVIEW_MIME_PREFIXES.some((prefix) => mime?.startsWith(prefix));
+}
+
 export type VisualKind = "image" | "video" | "other";
 
 const VIDEO_KINDS = new Set(["video", "video_note", "animation", "gif"]);

frontend/src/lib/api/shares.ts

@@ -0,0 +1,119 @@
+import { request } from "$lib/api/client";
+import type { FileShare, FileShareHit, ShareSubject } from "$lib/api/types";
+import { accounts } from "$lib/stores/accounts.svelte";
+
+export interface ShareSettings {
+  expiresInSeconds: number | null;
+  keepExpiry?: boolean;
+  maxDownloads: number | null;
+}
+
+function subjectQuery(subject: ShareSubject): Record<string, number | string> {
+  const query: Record<string, number | string> = { kind: subject.kind };
+  if (subject.mediaId !== undefined) {
+    query.media_id = subject.mediaId;
+  }
+  if (subject.versionId !== undefined) {
+    query.version_id = subject.versionId;
+  }
+  if (subject.peerId !== undefined) {
+    query.peer_id = subject.peerId;
+  }
+  if (subject.storyId !== undefined) {
+    query.story_id = subject.storyId;
+  }
+  return query;
+}
+
+export function listShares(activeOnly = false): Promise<FileShare[]> {
+  return request<FileShare[]>("/shares", {
+    account: true,
+    query: { active_only: activeOnly, limit: 200 },
+  });
+}
+
+export function lookupShare(subject: ShareSubject): Promise<FileShare | null> {
+  return request<FileShare | null>("/shares/lookup", {
+    account: true,
+    query: subjectQuery(subject),
+  });
+}
+
+export function createShare(
+  subject: ShareSubject,
+  settings: ShareSettings
+): Promise<FileShare> {
+  return request<FileShare>("/shares", {
+    method: "POST",
+    body: {
+      account_id: accounts.selectedId,
+      kind: subject.kind,
+      media_id: subject.mediaId ?? null,
+      version_id: subject.versionId ?? null,
+      peer_id: subject.peerId ?? null,
+      story_id: subject.storyId ?? null,
+      expires_in_seconds: settings.expiresInSeconds,
+      max_downloads: settings.maxDownloads,
+    },
+  });
+}
+
+export function updateShare(
+  id: number,
+  settings: ShareSettings
+): Promise<FileShare> {
+  return request<FileShare>(`/shares/${id}`, {
+    method: "PATCH",
+    body: {
+      expires_in_seconds: settings.expiresInSeconds,
+      keep_expiry: settings.keepExpiry ?? false,
+      max_downloads: settings.maxDownloads,
+    },
+  });
+}
+
+export function revokeShare(id: number): Promise<FileShare> {
+  return request<FileShare>(`/shares/${id}/revoke`, { method: "POST" });
+}
+
+export function reissueShare(id: number): Promise<FileShare> {
+  return request<FileShare>(`/shares/${id}/reissue`, { method: "POST" });
+}
+
+export function deleteShare(id: number): Promise<void> {
+  return request<void>(`/shares/${id}`, { method: "DELETE" });
+}
+
+export function listShareHits(id: number): Promise<FileShareHit[]> {
+  return request<FileShareHit[]>(`/shares/${id}/hits`, {
+    query: { limit: 50 },
+  });
+}
+
+const TRAILING_SLASH = /\/$/;
+
+export function shareUrl(share: FileShare): string {
+  const origin =
+    typeof window === "undefined"
+      ? ""
+      : window.location.origin.replace(TRAILING_SLASH, "");
+  return `${origin}/f/${share.token}/${share.url_name}`;
+}
+
+export function shareState(
+  share: FileShare
+): "active" | "revoked" | "expired" | "exhausted" {
+  if (share.revoked_at) {
+    return "revoked";
+  }
+  if (share.expires_at && Date.parse(share.expires_at) <= Date.now()) {
+    return "expired";
+  }
+  if (
+    share.max_downloads !== null &&
+    share.download_count >= share.max_downloads
+  ) {
+    return "exhausted";
+  }
+  return "active";
+}

frontend/src/lib/api/types.ts

@@ -92,6 +92,7 @@ export interface ForwardView {
 export interface MediaRef {
   downloaded: boolean;
   duration: number | null;
+  file_name: string | null;
   file_size: number | null;
   height: number | null;
   id: number | null;
@@ -242,6 +243,7 @@ export interface MediaView {
   created_at: string;
   downloaded: boolean;
   extracted_text: string | null;
+  file_name: string | null;
   file_size: number | null;
   id: number;
   kind: string;
@@ -506,3 +508,41 @@ export type LiveEvent =
   | LiveDeleteEvent
   | LivePresenceEvent
   | LiveReceiptEvent;
+
+export interface FileShare {
+  account_id: number;
+  chat_id: number | null;
+  created_at: string;
+  download_count: number;
+  expires_at: string | null;
+  file_name: string;
+  file_size: number | null;
+  id: number;
+  kind: string;
+  last_download_at: string | null;
+  max_downloads: number | null;
+  message_id: number | null;
+  mime: string | null;
+  peer_id: number | null;
+  revoked_at: string | null;
+  story_id: number | null;
+  title: string | null;
+  token: string;
+  url_name: string;
+}
+
+export interface FileShareHit {
+  counted: boolean;
+  ip: string | null;
+  method: string;
+  ts: string;
+  user_agent: string | null;
+}
+
+export interface ShareSubject {
+  kind: "media" | "media_version" | "story";
+  mediaId?: number;
+  peerId?: number;
+  storyId?: number;
+  versionId?: number;
+}

frontend/src/lib/components/ChatHeader.svelte

@@ -12,11 +12,10 @@
   import ContextMenuItem from "$lib/components/ui/ContextMenuItem.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
   import { peerName } from "$lib/format/peer";
-  import { formatPresence } from "$lib/format/presence";
+  import { formatPresence, isOnline } from "$lib/format/presence";
   import { accounts } from "$lib/stores/accounts.svelte";
   import { chats } from "$lib/stores/chats.svelte";
   import { discover } from "$lib/stores/discover.svelte";
-  import { events } from "$lib/stores/events.svelte";
   import { toasts } from "$lib/stores/toasts.svelte";
   import { ui } from "$lib/stores/ui.svelte";
 
@@ -26,6 +25,8 @@
 
   let { chatId }: Props = $props();
 
+  const PRESENCE_INTERVAL = 30_000;
+
   const isDm = $derived(chatId > 0);
   const chat = $derived(chats.byId(chatId));
   const discovered = $derived(discover.get(chatId));
@@ -40,7 +41,7 @@
     backfilling = true;
     try {
       await enqueueBackfill(chatId, true);
-      toasts.success("Бэкфилл запущен");
+      toasts.success("Догружаем новые сообщения");
     } catch {
       toasts.error("Не удалось запустить бэкфилл");
     } finally {
@@ -85,6 +86,10 @@
     }
     let active = true;
     presence = null;
+    const refresh = () => {
+      if (document.visibilityState !== "visible") {
+        return;
+      }
       getCurrentPresence(chatId)
         .then((result) => {
           if (active) {
@@ -96,18 +101,12 @@
             presence = null;
           }
         });
-    const unsub = events.subscribe((event) => {
+    };
-      if (
+    refresh();
-        event.type === "presence" &&
+    const timer = setInterval(refresh, PRESENCE_INTERVAL);
-        event.peer_id === chatId &&
-        event.sample
-      ) {
-        presence = event.sample;
-      }
-    });
     return () => {
       active = false;
-      unsub();
+      clearInterval(timer);
     };
   });
 
@@ -170,10 +169,7 @@
         />
         <div class="info">
           <h2 class="title">{title}</h2>
-          <span
+          <span class="subtitle" class:online={isDm && isOnline(presence)}>
-            class="subtitle"
-            class:online={isDm && presence?.status === "online"}
-          >
             {subtitle}
           </span>
         </div>
@@ -215,7 +211,7 @@
       smaller
       loading={backfilling}
       onclick={backfill}
-      aria-label="Скачать историю"
+      aria-label="Догрузить новые сообщения"
     >
       <Icon name="cloud-download" />
     </Button>

frontend/src/lib/components/ChatList.svelte

@@ -1,12 +1,10 @@
 <script lang="ts">
-  import { cubicOut } from "svelte/easing";
+  import { untrack } from "svelte";
-  import { fly } from "svelte/transition";
   import { goto } from "$app/navigation";
   import { page } from "$app/state";
   import ChatListItem from "$lib/components/ChatListItem.svelte";
   import EmptyState from "$lib/components/ui/EmptyState.svelte";
   import Skeleton from "$lib/components/ui/Skeleton.svelte";
-  import { folderContains } from "$lib/format/folders";
   import { accounts } from "$lib/stores/accounts.svelte";
   import { chats } from "$lib/stores/chats.svelte";
   import { folders } from "$lib/stores/folders.svelte";
@@ -14,37 +12,94 @@
 
   const skeletonRows = Array.from({ length: 9 }, (_, index) => index);
 
+  const DEFAULT_ROW_HEIGHT = 72;
+  const OVERSCAN = 6;
+  const SCROLL_THRESHOLD = 600;
+
   const activeChatId = $derived(
     page.params.chatId ? Number(page.params.chatId) : null
   );
 
-  const selectedFolder = $derived(folders.selected);
+  let viewport = $state<HTMLDivElement | null>(null);
-  const visibleChats = $derived(
+  let viewportHeight = $state(0);
-    selectedFolder === null
+  let scrollTop = $state(0);
-      ? chats.list
+  let rowHeight = $state(DEFAULT_ROW_HEIGHT);
-      : chats.list.filter((chat) => folderContains(selectedFolder, chat))
+  let frame = 0;
-  );
 
-  const SCROLL_THRESHOLD = 600;
+  const list = $derived(chats.list);
+  const start = $derived(
+    Math.max(0, Math.floor(scrollTop / rowHeight) - OVERSCAN)
+  );
+  const visible = $derived(
+    list.slice(
+      start,
+      start + Math.ceil(viewportHeight / rowHeight) + OVERSCAN * 2
+    )
+  );
+  const padTop = $derived(start * rowHeight);
+  const padBottom = $derived(
+    Math.max(0, (list.length - start - visible.length) * rowHeight)
+  );
 
   $effect(() => {
     if (accounts.selectedId === null) {
       return;
     }
-    chats.load().catch(() => toasts.error("Failed to load chats"));
+    untrack(() => folders.load()).catch(() =>
-    folders.load().catch(() => toasts.error("Failed to load folders"));
+      toasts.error("Failed to load folders")
+    );
   });
 
+  $effect(() => {
+    const folderId = folders.selectedId;
+    if (accounts.selectedId === null) {
+      return;
+    }
+    if (viewport) {
+      viewport.scrollTop = 0;
+      scrollTop = 0;
+    }
+    untrack(() => chats.load(folderId)).catch(() =>
+      toasts.error("Failed to load chats")
+    );
+  });
+
+  $effect(() => {
+    if (visible.length === 0 || !viewport) {
+      return;
+    }
+    const row = viewport.querySelector<HTMLElement>(".Chat");
+    if (row && row.offsetHeight > 0 && row.offsetHeight !== rowHeight) {
+      rowHeight = row.offsetHeight;
+    }
+  });
+
+  function measure(el: HTMLElement) {
+    scrollTop = el.scrollTop;
+    if (el.scrollTop + el.clientHeight >= el.scrollHeight - SCROLL_THRESHOLD) {
+      chats.loadMore(folders.selectedId).catch(() => undefined);
+    }
+  }
+
   function onScroll(event: Event) {
     const el = event.currentTarget as HTMLElement;
-    if (el.scrollTop + el.clientHeight >= el.scrollHeight - SCROLL_THRESHOLD) {
+    if (frame) {
-      chats.loadMore().catch(() => undefined);
+      return;
     }
+    frame = requestAnimationFrame(() => {
+      frame = 0;
+      measure(el);
+    });
   }
 </script>
 
-<div class="chat-list custom-scroll" onscroll={onScroll}>
+<div
-  {#if chats.loading && chats.list.length === 0}
+  bind:this={viewport}
+  bind:clientHeight={viewportHeight}
+  class="chat-list custom-scroll"
+  onscroll={onScroll}
+>
+  {#if chats.loading && list.length === 0}
     {#each skeletonRows as index (index)}
       <div class="row-skeleton">
         <Skeleton width="3rem" height="3rem" circle />
@@ -54,30 +109,23 @@
         </div>
       </div>
     {/each}
-  {:else if chats.list.length === 0}
+  {:else if list.length === 0}
-    <EmptyState title="No chats yet" />
-  {:else}
-    {#key folders.selectedId}
-      <div
-        class="folder-view"
-        in:fly={{ x: folders.direction * 24, duration: 200, easing: cubicOut }}
-      >
-        {#if visibleChats.length === 0 && !chats.hasMore}
     <EmptyState
-            title="Empty folder"
+      title={folders.selectedId === null ? "No chats yet" : "Empty folder"}
-            description="No chats match this folder yet"
+      description={folders.selectedId === null
+        ? undefined
+        : "No chats match this folder yet"}
     />
   {:else}
-          {#each visibleChats as chat (chat.chat_id)}
+    <div style:padding-top="{padTop}px" style:padding-bottom="{padBottom}px">
+      {#each visible as chat (chat.chat_id)}
         <ChatListItem
           {chat}
           selected={chat.chat_id === activeChatId}
           onclick={() => goto(`/app/${chat.chat_id}`)}
         />
       {/each}
-        {/if}
     </div>
-    {/key}
   {/if}
 </div>
 

frontend/src/lib/components/ChatListItem.svelte

@@ -119,6 +119,7 @@
     gap: 0.625rem;
 
     width: 100%;
+    height: 4.5rem;
     padding: 0.5625rem 0.5rem;
     border: 0;
     border-radius: 0.625rem;

frontend/src/lib/components/EntityText.svelte

@@ -69,13 +69,14 @@
   {:else if type === "url" || type === "text_link" || type === "email" || type === "phone_number"}
     <a
       class="link"
+      class:own
       href={linkHref(node)}
       target="_blank"
       rel="noopener noreferrer"
       >{@render tree(node.children)}</a
     >
   {:else if type === "mention" || type === "text_mention" || type === "hashtag" || type === "cashtag" || type === "bot_command"}
-    <span class="link">{@render tree(node.children)}</span>
+    <span class="link" class:own>{@render tree(node.children)}</span>
   {:else}
     {@render tree(node.children)}
   {/if}
@@ -108,6 +109,24 @@
     &:hover {
       text-decoration: underline;
     }
+
+    &.own {
+      color: var(--color-own-links);
+    }
+  }
+
+  a.link.own {
+    text-decoration: underline;
+    text-decoration-color: color-mix(
+      in srgb,
+      var(--color-own-links) 45%,
+      transparent
+    );
+    text-underline-offset: 0.15em;
+
+    &:hover {
+      text-decoration-color: currentcolor;
+    }
   }
 
   .code,

frontend/src/lib/components/MediaAlbum.svelte

@@ -1,14 +1,21 @@
 <script lang="ts">
+  import { isPreviewable } from "$lib/api/media";
   import type { MediaRef } from "$lib/api/types";
   import AlbumTile from "$lib/components/media/AlbumTile.svelte";
+  import FileChip from "$lib/components/media/FileChip.svelte";
 
   interface Props {
     chatId: number;
     media: MediaRef[];
     onopen: (index: number) => void;
+    own?: boolean;
   }
 
-  let { media, chatId, onopen }: Props = $props();
+  let { media, chatId, onopen, own = false }: Props = $props();
+
+  const asFiles = $derived(
+    media.every((item) => !isPreviewable(item.kind, item.mime))
+  );
 
   const columns = $derived.by(() => {
     const count = media.length;
@@ -22,13 +29,28 @@
   });
 </script>
 
-<div class="MediaAlbum" style:--cols={columns}>
+{#if asFiles}
+  <div class="AlbumFiles">
+    {#each media as item, index (item.id ?? index)}
+      <FileChip media={item} {own} />
+    {/each}
+  </div>
+{:else}
+  <div class="MediaAlbum" style:--cols={columns}>
     {#each media as item, index (item.id ?? index)}
       <AlbumTile media={item} {chatId} onopen={() => onopen(index)} />
     {/each}
-</div>
+  </div>
+{/if}
 
 <style lang="scss">
+  .AlbumFiles {
+    display: flex;
+    flex-direction: column;
+    gap: 0.125rem;
+    margin-bottom: 0.25rem;
+  }
+
   .MediaAlbum {
     display: grid;
     grid-template-columns: repeat(var(--cols), 1fr);

frontend/src/lib/components/MediaVersionThumb.svelte

@@ -4,6 +4,7 @@
   import type { MediaVersion } from "$lib/api/types";
   import Icon from "$lib/components/ui/Icon.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
+  import { poster } from "$lib/media/poster";
 
   interface Props {
     version: MediaVersion;
@@ -37,7 +38,13 @@
     </a>
   {:else if result.state === "ready" && vk === "video"}
     <a href={result.url} target="_blank" rel="noopener">
-      <video src={result.url} muted preload="metadata"></video>
+      <video
+        src={result.url}
+        muted
+        playsinline
+        preload="metadata"
+        use:poster
+      ></video>
       <span class="play"><Icon name="large-play" size="1.5rem" /></span>
     </a>
   {:else if result.state === "ready"}

frontend/src/lib/components/MediaViewer.svelte

@@ -2,11 +2,17 @@
   import { Dialog } from "bits-ui";
   import { untrack } from "svelte";
   import { type MediaResult, requestMedia } from "$lib/api/client";
+  import { downloadMedia } from "$lib/api/download";
   import { fetchMedia, getMessageMedia } from "$lib/api/endpoints";
-  import type { ViewerItem } from "$lib/api/media";
+  import { isPreviewable, type ViewerItem } from "$lib/api/media";
   import Button from "$lib/components/ui/Button.svelte";
+  import ContextMenu from "$lib/components/ui/ContextMenu.svelte";
+  import ContextMenuItem from "$lib/components/ui/ContextMenuItem.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
+  import { formatBytes, mediaKindLabel } from "$lib/format/media";
+  import { poster } from "$lib/media/poster";
+  import { shareUi } from "$lib/stores/shares.svelte";
   import { toasts } from "$lib/stores/toasts.svelte";
 
   interface Props {
@@ -25,8 +31,13 @@
 
   let kind = $state("");
   let messageId = $state<number | null>(null);
+  let currentMediaId = $state<number | null>(null);
+  let fileName = $state<string | null>(null);
+  let fileSize = $state<number | null>(null);
+  let fileOnly = $state(false);
   let result = $state<MediaResult | null>(null);
   let loading = $state(false);
+  let saving = $state(false);
   let token = 0;
 
   const mime = $derived(result?.state === "ready" ? (result.mime ?? "") : "");
@@ -38,9 +49,13 @@
     mime.startsWith("audio/") || kind === "voice" || kind === "audio"
   );
   const hasNav = $derived(items.length > 1);
+  const canSave = $derived(
+    currentMediaId !== null && (fileOnly || result?.state === "ready")
+  );
+  const title = $derived(fileName ?? mediaKindLabel(kind) ?? "Медиа");
 
   function revoke() {
-    if (result?.state === "ready") {
+    if (result?.state === "ready" && result.url) {
       URL.revokeObjectURL(result.url);
     }
   }
@@ -51,21 +66,41 @@
     result = null;
     kind = item.kind;
     messageId = item.messageId;
+    currentMediaId = null;
+    fileName = item.fileName;
+    fileSize = item.fileSize;
+    fileOnly = false;
     const current = ++token;
     try {
       let mediaId = item.mediaId;
       let downloaded = item.downloaded;
+      let name = item.fileName;
+      let size = item.fileSize;
+      let mimeType = item.mime;
       if (mediaId === null) {
         const meta = await getMessageMedia(chatId, item.messageId);
         mediaId = meta.id;
         downloaded = meta.downloaded;
         kind = meta.kind;
+        name = meta.file_name;
+        size = meta.file_size;
+        mimeType = meta.mime;
+      }
+      const plainFile = downloaded && !isPreviewable(kind, mimeType);
+      let next: MediaResult;
+      if (plainFile) {
+        next = { state: "ready", url: "", mime: mimeType };
+      } else if (downloaded) {
+        next = await requestMedia(mediaId);
+      } else {
+        next = { state: "not-downloaded" } as MediaResult;
       }
-      const next = downloaded
-        ? await requestMedia(mediaId)
-        : ({ state: "not-downloaded" } as MediaResult);
       if (current === token) {
         result = next;
+        currentMediaId = mediaId;
+        fileName = name;
+        fileSize = size;
+        fileOnly = plainFile;
       }
     } catch {
       if (current === token) {
@@ -84,9 +119,29 @@
     }
     try {
       await fetchMedia(chatId, messageId);
-      toasts.success("Download queued");
+      toasts.success("Скачивание поставлено в очередь");
     } catch {
-      toasts.error("Failed to queue download");
+      toasts.error("Не удалось поставить в очередь");
+    }
+  }
+
+  async function save() {
+    if (currentMediaId === null || saving) {
+      return;
+    }
+    saving = true;
+    try {
+      await downloadMedia(currentMediaId);
+    } catch {
+      toasts.error("Не удалось скачать файл");
+    } finally {
+      saving = false;
+    }
+  }
+
+  function share() {
+    if (currentMediaId !== null) {
+      shareUi.share({ kind: "media", mediaId: currentMediaId }, title);
     }
   }
 
@@ -134,10 +189,43 @@
   <Dialog.Portal>
     <Dialog.Overlay class="media-overlay" />
     <Dialog.Content class="media-content">
-      <Dialog.Title class="media-title">{kind || "Media"}</Dialog.Title>
+      <Dialog.Title class="media-title">{title}</Dialog.Title>
-      <Dialog.Close class="media-close" aria-label="Close">
+      <div class="media-actions">
+        {#if canSave}
+          <ContextMenu>
+            {#snippet children({ props })}
+              <button
+                {...props}
+                type="button"
+                class="media-action"
+                aria-label="Скачать файл"
+                onclick={save}
+              >
+                <Icon name={saving ? "timer" : "download"} size="1.375rem" />
+              </button>
+            {/snippet}
+            {#snippet menu()}
+              <ContextMenuItem icon="download" onselect={save}>
+                Скачать файл
+              </ContextMenuItem>
+              <ContextMenuItem icon="allow-share" onselect={share}>
+                Доступ по ссылке
+              </ContextMenuItem>
+            {/snippet}
+          </ContextMenu>
+          <button
+            type="button"
+            class="media-action"
+            aria-label="Доступ по ссылке"
+            onclick={share}
+          >
+            <Icon name="allow-share" size="1.375rem" />
+          </button>
+        {/if}
+        <Dialog.Close class="media-close" aria-label="Закрыть">
           <Icon name="close" size="1.5rem" />
         </Dialog.Close>
+      </div>
       {#if hasNav}
         <span class="media-counter">{index + 1} / {items.length}</span>
       {/if}
@@ -149,24 +237,38 @@
         {:else if result?.state === "ready" && isVideo}
           <!-- svelte-ignore a11y_media_has_caption -->
           <!-- biome-ignore lint/a11y/useMediaCaption: archived media has no captions -->
-          <video class="media-video" src={result.url} controls></video>
+          <video
+            class="media-video"
+            src={result.url}
+            controls
+            playsinline
+            preload="auto"
+            use:poster
+          ></video>
         {:else if result?.state === "ready" && isAudio}
           <!-- biome-ignore lint/a11y/useMediaCaption: archived media has no captions -->
           <audio src={result.url} controls></audio>
         {:else if result?.state === "ready"}
-          <a class="media-download" href={result.url} download>
+          <div class="media-file">
+            <span class="file-glyph"><Icon name="document" size="2rem" /></span>
+            <p class="file-name">{title}</p>
+            {#if fileSize}
+              <p class="file-size">{formatBytes(fileSize)}</p>
+            {/if}
+            <button class="media-download" type="button" onclick={save}>
               <Icon name="download" />
-            Download file
+              Скачать файл
-          </a>
+            </button>
+          </div>
         {:else if result?.state === "not-downloaded"}
           <div class="media-message">
-            <p>This media has not been downloaded yet.</p>
+            <p>Файл ещё не скачан в архив.</p>
             <Button variant="primary" fluid onclick={queueFetch}>
-              Fetch media
+              Скачать в архив
             </Button>
           </div>
         {:else if result?.state === "missing"}
-          <p class="media-message">Media not found.</p>
+          <p class="media-message">Файл не найден.</p>
         {/if}
       </div>
       {#if hasNav}
@@ -214,14 +316,18 @@
 
   :global(.media-title) {
     position: absolute;
-    top: 1rem;
+    top: 1.25rem;
     left: 1.25rem;
 
+    overflow: hidden;
+    max-width: min(24rem, calc(100% - 14rem));
     margin: 0;
+
     font-size: 1rem;
     font-weight: var(--font-weight-medium);
     color: var(--color-white);
-    text-transform: capitalize;
+    text-overflow: ellipsis;
+    white-space: nowrap;
   }
 
   .media-counter {
@@ -236,9 +342,6 @@
 
   :global(.media-close) {
     cursor: pointer;
-    position: absolute;
-    top: 0.75rem;
-    right: 1rem;
 
     display: flex;
     align-items: center;
@@ -274,13 +377,84 @@
     text-align: center;
   }
 
+  .media-file {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 0.25rem;
+
+    max-width: min(24rem, 90vw);
+    color: var(--color-white);
+    text-align: center;
+  }
+
+  .file-glyph {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+
+    width: 4.5rem;
+    height: 4.5rem;
+    margin-bottom: 0.5rem;
+    border-radius: 50%;
+
+    background-color: rgba(255, 255, 255, 0.12);
+  }
+
+  .file-name {
+    overflow-wrap: anywhere;
+    margin: 0;
+    font-size: 1rem;
+  }
+
+  .file-size {
+    margin: 0 0 0.75rem;
+    font-size: 0.8125rem;
+    color: rgba(255, 255, 255, 0.6);
+  }
+
   .media-download {
     display: inline-flex;
     align-items: center;
     gap: 0.5rem;
 
+    padding: 0.625rem 1.25rem;
+    border: 0;
+    border-radius: 1.5rem;
+
+    font-family: inherit;
+    font-size: 0.9375rem;
     color: var(--color-white);
-    text-decoration: none;
+
+    cursor: pointer;
+    background-color: rgba(255, 255, 255, 0.12);
+  }
+
+  .media-actions {
+    position: absolute;
+    top: 0.75rem;
+    right: 1rem;
+
+    display: flex;
+    align-items: center;
+    gap: 0.375rem;
+    z-index: 1;
+  }
+
+  .media-action {
+    cursor: pointer;
+
+    display: flex;
+    align-items: center;
+    justify-content: center;
+
+    width: 2.5rem;
+    height: 2.5rem;
+    border: 0;
+    border-radius: 50%;
+
+    color: var(--color-white);
+    background-color: rgba(255, 255, 255, 0.1);
   }
 
   .media-nav {

frontend/src/lib/components/MessageBubble.svelte

@@ -188,6 +188,7 @@
               media={message.media}
               chatId={message.chat_id}
               onopen={onmedia}
+              {own}
             />
           {:else if message.has_media}
             <MessageMedia {message} {own} onopen={() => onmedia(0)} />

frontend/src/lib/components/MessageList.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-  import { tick } from "svelte";
+  import { tick, untrack } from "svelte";
   import { listMessages } from "$lib/api/endpoints";
   import { type ViewerItem, viewerItemsFrom } from "$lib/api/media";
   import type { LiveEvent, MessageView } from "$lib/api/types";
@@ -13,7 +13,6 @@
   import Spinner from "$lib/components/ui/Spinner.svelte";
   import { formatDay } from "$lib/format/datetime";
   import { accounts } from "$lib/stores/accounts.svelte";
-  import { chats } from "$lib/stores/chats.svelte";
   import { events } from "$lib/stores/events.svelte";
   import { peers } from "$lib/stores/peers.svelte";
   import { toasts } from "$lib/stores/toasts.svelte";
@@ -425,14 +424,10 @@
   });
 
   $effect(() => {
-    const deps = {
+    if (accounts.selectedId === null) {
-      account: accounts.selectedId,
-      revision: chats.revision,
-    };
-    if (deps.account === null) {
       return;
     }
-    loadInitial();
+    untrack(() => loadInitial());
   });
 </script>
 

frontend/src/lib/components/MessageMedia.svelte

@@ -1,13 +1,16 @@
 <script lang="ts">
   import { visible } from "$lib/actions/visible";
+  import { downloadMedia } from "$lib/api/download";
   import { fetchMedia } from "$lib/api/endpoints";
   import {
     type InlineMedia,
+    isPreviewable,
     loadInlineMedia,
     visualKind,
   } from "$lib/api/media";
   import type { MessageView } from "$lib/api/types";
   import AudioFile from "$lib/components/media/AudioFile.svelte";
+  import FileChip from "$lib/components/media/FileChip.svelte";
   import TgsSticker from "$lib/components/media/TgsSticker.svelte";
   import VideoNote from "$lib/components/media/VideoNote.svelte";
   import VoiceMessage from "$lib/components/media/VoiceMessage.svelte";
@@ -15,6 +18,9 @@
   import ContextMenuItem from "$lib/components/ui/ContextMenuItem.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
+  import { formatBytes, mediaKindLabel } from "$lib/format/media";
+  import { poster } from "$lib/media/poster";
+  import { shareUi } from "$lib/stores/shares.svelte";
   import { toasts } from "$lib/stores/toasts.svelte";
   import { ui } from "$lib/stores/ui.svelte";
 
@@ -32,9 +38,15 @@
   let loaded = $state(false);
   let media = $state<InlineMedia | null>(null);
   let queuing = $state(false);
+  let saving = $state(false);
+
+  const ref = $derived(message.media[0] ?? null);
+  const asFile = $derived(
+    ref !== null && ref.id !== null && !isPreviewable(ref.kind, ref.mime)
+  );
 
   const ready = $derived(media?.state === "ready" ? media : null);
-  const kind = $derived(ready?.kind ?? "");
+  const kind = $derived(ready?.kind ?? ref?.kind ?? "");
   const mime = $derived(ready?.mime ?? "");
   const isImage = $derived(kind === "photo");
   const isStaticSticker = $derived(
@@ -55,6 +67,10 @@
   const label = $derived(
     media && media.state !== "missing" ? media.kind : "media"
   );
+  const storedId = $derived(
+    ready?.mediaId ?? (asFile ? ref?.id : null) ?? null
+  );
+  const fileName = $derived(ref?.file_name ?? mediaKindLabel(kind) ?? "Файл");
 
   function delay(ms: number): Promise<void> {
     return new Promise((resolve) => {
@@ -63,6 +79,10 @@
   }
 
   async function start() {
+    if (asFile) {
+      loaded = true;
+      return;
+    }
     media = await loadInlineMedia(message.chat_id, message.message_id);
     loaded = true;
   }
@@ -85,14 +105,34 @@
     queuing = true;
     try {
       await fetchMedia(message.chat_id, message.message_id);
-      toasts.success("Download queued");
+      toasts.success("Скачивание поставлено в очередь");
       poll();
     } catch {
-      toasts.error("Failed to queue download");
+      toasts.error("Не удалось поставить в очередь");
     } finally {
       queuing = false;
     }
   }
+
+  async function save() {
+    if (storedId === null || saving) {
+      return;
+    }
+    saving = true;
+    try {
+      await downloadMedia(storedId);
+    } catch {
+      toasts.error("Не удалось скачать файл");
+    } finally {
+      saving = false;
+    }
+  }
+
+  function share() {
+    if (storedId !== null) {
+      shareUi.share({ kind: "media", mediaId: storedId }, fileName);
+    }
+  }
 </script>
 
 <ContextMenu>
@@ -101,8 +141,10 @@
       {#if message.is_self_destruct}
         <button class="media-chip self-destruct" onclick={onopen} type="button">
           <Icon name="timer" size="1.25rem" />
-          <span>Self-destruct media</span>
+          <span>Самоуничтожающееся медиа</span>
         </button>
+      {:else if asFile && ref}
+        <FileChip media={ref} {own} />
       {:else if !loaded}
         <div class="media-skeleton"><Spinner /></div>
       {:else if ready && kind === "voice"}
@@ -116,7 +158,7 @@
       {:else if ready && kind === "video_note"}
         <VideoNote url={ready.url} transcript={ready.transcript} />
       {:else if ready && kind === "audio"}
-        <AudioFile url={ready.url} title={ready.mime ?? "Audio"} {own} />
+        <AudioFile url={ready.url} title={fileName} {own} />
       {:else if ready && isImage}
         <button class="media-thumb" onclick={onopen} type="button">
           <img src={ready.url} alt="attachment">
@@ -143,7 +185,13 @@
         </button>
       {:else if ready && isThumbVideo}
         <button class="media-thumb" onclick={onopen} type="button">
-          <video src={ready.url} muted preload="metadata"></video>
+          <video
+            src={ready.url}
+            muted
+            playsinline
+            preload="metadata"
+            use:poster
+          ></video>
           <span class="play"><Icon name="large-play" size="2.5rem" /></span>
         </button>
       {:else if ready}
@@ -154,32 +202,43 @@
       {:else if media?.state === "not-downloaded" && vk !== "other"}
         <button class="media-placeholder" onclick={queue} type="button">
           <Icon name={queuing ? "timer" : "download"} size="1.5rem" />
-          <span>{vk === "video" ? "Video" : "Photo"}</span>
+          <span>{vk === "video" ? "Видео" : "Фото"}</span>
-          <small>{queuing ? "Queued" : "Tap to download"}</small>
+          <small>{queuing ? "В очереди" : "Нажмите, чтобы скачать"}</small>
         </button>
       {:else if media?.state === "not-downloaded"}
         <button class="media-chip" onclick={queue} type="button">
           <Icon name={queuing ? "timer" : "download"} size="1.25rem" />
-          <span>{queuing ? "Queued" : `Download ${label}`}</span>
+          <span>{queuing ? "В очереди" : `Скачать ${label}`}</span>
         </button>
       {:else}
         <button class="media-chip" onclick={onopen} type="button">
           <Icon name="photo" size="1.25rem" />
-          <span>Media</span>
+          <span>Медиа</span>
         </button>
       {/if}
     </div>
   {/snippet}
   {#snippet menu()}
     <ContextMenuItem icon="open-in-new-tab" onselect={onopen}
-      >Открыть</ContextMenuItem
+      >Открыть на весь экран</ContextMenuItem
     >
     <ContextMenuItem
       icon="recent"
       onselect={() => ui.openMessagePanel("versions", message.message_id)}
       >Версии медиа</ContextMenuItem
     >
-    <ContextMenuItem icon="download" onselect={queue}>Скачать</ContextMenuItem>
+    {#if storedId === null}
+      <ContextMenuItem icon="cloud-download" onselect={queue}>
+        Скачать в архив
+      </ContextMenuItem>
+    {:else}
+      <ContextMenuItem icon="download" onselect={save}>
+        Скачать файл
+      </ContextMenuItem>
+      <ContextMenuItem icon="allow-share" onselect={share}>
+        Доступ по ссылке
+      </ContextMenuItem>
+    {/if}
   {/snippet}
 </ContextMenu>
 

frontend/src/lib/components/RightColumn.svelte

@@ -6,6 +6,7 @@
   import AnalyticsPanel from "$lib/components/presence/AnalyticsPanel.svelte";
   import ProfilePanel from "$lib/components/profile/ProfilePanel.svelte";
   import ChatSearchPanel from "$lib/components/search/ChatSearchPanel.svelte";
+  import SharesPanel from "$lib/components/shares/SharesPanel.svelte";
   import CallbacksPanel from "$lib/components/social/CallbacksPanel.svelte";
   import LinksPanel from "$lib/components/social/LinksPanel.svelte";
   import ReactionsPanel from "$lib/components/social/ReactionsPanel.svelte";
@@ -31,6 +32,7 @@
     policy: "Политика захвата",
     watches: "Отслеживания",
     alerts: "Алерты",
+    shares: "Файлы по ссылке",
   };
 </script>
 
@@ -74,6 +76,8 @@
     <AlertsPanel />
   {:else if ui.rightPanel === "annotations"}
     <AnnotationsPanel />
+  {:else if ui.rightPanel === "shares"}
+    <SharesPanel />
   {/if}
 </div>
 

frontend/src/lib/components/TrackChat.svelte

@@ -48,8 +48,8 @@
     }
     busy = true;
     try {
-      await enqueueBackfill(chatId, true);
+      await enqueueBackfill(chatId, true, true);
-      toasts.success("Бэкфилл запущен");
+      toasts.success("Полный бэкфилл запущен");
     } catch {
       toasts.error("Не удалось запустить бэкфилл");
     } finally {

frontend/src/lib/components/jobs/JobList.svelte

@@ -16,6 +16,7 @@
 
   const KIND_LABELS: Record<string, string> = {
     backfill: "Бэкфилл",
+    backfill_stories: "Бэкфилл сторис",
     fetch_media: "Докачка медиа",
     fetch_avatar: "Аватар",
     fetch_custom_emoji: "Кастом-эмодзи",
@@ -79,17 +80,21 @@
     schedule();
   }
 
-  function kindLabel(kind: string): string {
+  function kindLabel(job: JobView): string {
-    return KIND_LABELS[kind] ?? kind;
+    const label = KIND_LABELS[job.kind] ?? job.kind;
+    if (job.kind !== "backfill") {
+      return label;
+    }
+    return job.params.full ? `${label} (полный)` : `${label} (новые)`;
   }
 
   function processed(job: JobView): number | null {
-    const value = job.progress.processed;
+    const value = job.progress.processed ?? job.progress.saved;
     return typeof value === "number" ? value : null;
   }
 
   function chatId(job: JobView): number | null {
-    const value = job.params.chat_id;
+    const value = job.params.chat_id ?? job.params.peer_id;
     return typeof value === "number" ? value : null;
   }
 
@@ -117,7 +122,7 @@
     {#each jobs as job (job.id)}
       <div class="job">
         <div class="job-head">
-          <span class="kind">{kindLabel(job.kind)}</span>
+          <span class="kind">{kindLabel(job)}</span>
           {#if canCancel(job)}
             <button
               type="button"

frontend/src/lib/components/jobs/JobsPanel.svelte

@@ -9,6 +9,7 @@
   import JobList from "$lib/components/jobs/JobList.svelte";
   import Button from "$lib/components/ui/Button.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
+  import { createChatPicker } from "$lib/stores/chat-picker.svelte";
   import { chats } from "$lib/stores/chats.svelte";
   import { toasts } from "$lib/stores/toasts.svelte";
 
@@ -23,13 +24,18 @@
   let syncing = $state(false);
   let syncingContacts = $state(false);
 
-  const availableChats = $derived(
+  const picker = createChatPicker();
-    chats.list
+  const availableChats = $derived(picker.results);
-      .filter((c) =>
+
-        (c.title ?? "").toLowerCase().includes(filter.trim().toLowerCase())
+  $effect(() => {
-      )
+    picker.search(filter);
-      .slice(0, 40)
+  });
-  );
+
+  $effect(() => {
+    if (selected !== null) {
+      chats.ensure(selected);
+    }
+  });
 
   function chatTitle(id: number | null): string {
     if (id === null) {
@@ -50,8 +56,8 @@
     }
     starting = true;
     try {
-      await enqueueBackfill(selected, media);
+      await enqueueBackfill(selected, media, true);
-      toasts.success("Бэкфилл запущен");
+      toasts.success("Полный бэкфилл запущен");
       version += 1;
     } catch {
       toasts.error("Не удалось запустить бэкфилл");
@@ -129,6 +135,10 @@
 
   <section>
     <div class="section-title">Бэкфилл</div>
+    <p class="hint">
+      Полный бэкфилл перечитывает всю историю чата с самого начала. Кнопка в
+      шапке чата догружает только сообщения новее последнего сохранённого.
+    </p>
 
     <button
       type="button"
@@ -186,7 +196,7 @@
         onclick={start}
       >
         <Icon name="cloud-download" />
-        <span>Запустить бэкфилл</span>
+        <span>Запустить полный бэкфилл</span>
       </Button>
     </div>
   </section>

frontend/src/lib/components/media/AlbumTile.svelte

@@ -5,6 +5,7 @@
   import type { MediaRef } from "$lib/api/types";
   import Icon from "$lib/components/ui/Icon.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
+  import { poster } from "$lib/media/poster";
   import { toasts } from "$lib/stores/toasts.svelte";
 
   interface Props {
@@ -46,7 +47,13 @@
 <div class="AlbumTile" use:visible={start}>
   {#if ready && isVideo}
     <button class="tile" onclick={onopen} type="button">
-      <video src={ready.url} muted preload="metadata"></video>
+      <video
+        src={ready.url}
+        muted
+        playsinline
+        preload="metadata"
+        use:poster
+      ></video>
       <span class="play"><Icon name="large-play" size="2rem" /></span>
     </button>
   {:else if ready}

frontend/src/lib/components/media/FileChip.svelte

@@ -0,0 +1,179 @@
+<script lang="ts">
+  import { downloadMedia } from "$lib/api/download";
+  import type { MediaRef } from "$lib/api/types";
+  import Icon from "$lib/components/ui/Icon.svelte";
+  import { formatBytes, mediaKindLabel } from "$lib/format/media";
+  import { shareUi } from "$lib/stores/shares.svelte";
+  import { toasts } from "$lib/stores/toasts.svelte";
+
+  interface Props {
+    media: MediaRef;
+    own?: boolean;
+  }
+
+  const { media, own = false }: Props = $props();
+
+  let saving = $state(false);
+
+  const name = $derived(
+    media.file_name ?? mediaKindLabel(media.kind) ?? "Файл"
+  );
+  const size = $derived(formatBytes(media.file_size));
+
+  async function save() {
+    if (media.id === null || saving) {
+      return;
+    }
+    saving = true;
+    try {
+      await downloadMedia(media.id);
+    } catch {
+      toasts.error("Не удалось скачать файл");
+    } finally {
+      saving = false;
+    }
+  }
+
+  function share() {
+    if (media.id !== null) {
+      shareUi.share({ kind: "media", mediaId: media.id }, name);
+    }
+  }
+</script>
+
+<div class="FileChip" class:own>
+  <button class="file-main" type="button" title={name} onclick={save}>
+    <span class="file-glyph" class:own>
+      <Icon name={saving ? "timer" : "document"} size="1.25rem" />
+    </span>
+    <span class="file-text">
+      <span class="file-name">{name}</span>
+      <span class="file-sub">{size || mediaKindLabel(media.kind)}</span>
+    </span>
+  </button>
+  <button
+    class="file-share"
+    type="button"
+    aria-label="Доступ по ссылке"
+    onclick={share}
+  >
+    <Icon name="allow-share" size="1.125rem" />
+  </button>
+</div>
+
+<style lang="scss">
+  .FileChip {
+    display: flex;
+    align-items: center;
+    gap: 0.25rem;
+
+    width: 100%;
+    max-width: 20rem;
+    padding: 0.25rem 0.375rem 0.25rem 0.25rem;
+    border-radius: var(--border-radius-default-small);
+
+    background-color: var(--color-primary-tint);
+
+    &.own {
+      background-color: var(--color-code-own-bg);
+    }
+  }
+
+  .file-main {
+    cursor: pointer;
+
+    display: flex;
+    flex: 1;
+    align-items: center;
+    gap: 0.625rem;
+
+    min-width: 0;
+    padding: 0.25rem;
+    border: 0;
+
+    font-family: inherit;
+    text-align: start;
+
+    background: transparent;
+  }
+
+  .file-glyph :global(.icon) {
+    transform: translate(0.5px, -0.5px);
+  }
+
+  .file-glyph {
+    display: flex;
+    flex-shrink: 0;
+    align-items: center;
+    justify-content: center;
+
+    width: 2.25rem;
+    height: 2.25rem;
+    border-radius: 50%;
+
+    color: var(--color-white);
+    background-color: var(--color-primary);
+
+    &.own {
+      color: var(--color-own-links);
+      background-color: color-mix(
+        in srgb,
+        var(--color-own-links) 20%,
+        transparent
+      );
+    }
+  }
+
+  .file-text {
+    display: flex;
+    flex-direction: column;
+    min-width: 0;
+  }
+
+  .file-name {
+    overflow: hidden;
+
+    font-size: 0.9375rem;
+    color: var(--color-text);
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+
+  .file-sub {
+    font-size: 0.75rem;
+    color: var(--color-text-secondary);
+  }
+
+  .own .file-sub {
+    color: var(--color-message-meta-own);
+  }
+
+  .file-share {
+    cursor: pointer;
+
+    display: flex;
+    flex-shrink: 0;
+    align-items: center;
+    justify-content: center;
+
+    width: 2rem;
+    height: 2rem;
+    border: 0;
+    border-radius: 50%;
+
+    color: var(--color-primary);
+    background: transparent;
+
+    &:hover {
+      background-color: var(--color-primary-opacity);
+    }
+  }
+
+  .own .file-share {
+    color: var(--color-own-links);
+
+    &:hover {
+      background-color: color-mix(in srgb, currentcolor 18%, transparent);
+    }
+  }
+</style>

frontend/src/lib/components/media/VideoNote.svelte

@@ -2,6 +2,7 @@
   import Icon from "$lib/components/ui/Icon.svelte";
   import { formatDuration } from "$lib/format/duration";
   import { claimPlayback, releasePlayback } from "$lib/media/playback";
+  import { POSTER_TIME, poster } from "$lib/media/poster";
 
   interface Props {
     transcript?: string | null;
@@ -52,12 +53,13 @@
       onended={() => element && releasePlayback(element)}
       onplay={() => element && claimPlayback(element)}
       playsinline
-      preload="metadata"
+      preload="auto"
       src={url}
+      use:poster
     ></video>
-    <svg class="ring" viewBox="0 0 200 200" aria-hidden="true">
+    <svg class="RoundVideoRing" viewBox="0 0 200 200" aria-hidden="true">
       <circle
-        class="ring-progress"
+        class="RoundVideoProgress"
         cx="100"
         cy="100"
         r={RADIUS}
@@ -70,7 +72,7 @@
     {/if}
     <span class="badge">
       <Icon name="microphone" size="0.875rem" />
-      {formatDuration(paused && currentTime === 0 ? duration : remaining)}
+      {formatDuration(paused && currentTime <= POSTER_TIME ? duration : remaining)}
     </span>
   </button>
   {#if transcript}
@@ -137,20 +139,25 @@
     height: 13rem;
     padding: 0;
     border: 0;
+    border-radius: 50%;
 
     background: transparent;
+    -webkit-tap-highlight-color: transparent;
   }
 
   video {
+    display: block;
+
     width: 100%;
     height: 100%;
     border-radius: 50%;
 
     object-fit: cover;
     background-color: var(--color-default-shadow);
+    clip-path: circle(50%);
   }
 
-  .ring {
+  .RoundVideoRing {
     pointer-events: none;
     position: absolute;
     inset: 0;
@@ -160,7 +167,7 @@
     height: 100%;
   }
 
-  .ring-progress {
+  .RoundVideoProgress {
     fill: transparent;
     stroke: var(--color-white);
     stroke-width: 4;

frontend/src/lib/components/policy/PolicyEditor.svelte

@@ -16,6 +16,7 @@
   import Icon from "$lib/components/ui/Icon.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
   import { accounts } from "$lib/stores/accounts.svelte";
+  import { createChatPicker } from "$lib/stores/chat-picker.svelte";
   import { chats } from "$lib/stores/chats.svelte";
   import { toasts } from "$lib/stores/toasts.svelte";
 
@@ -79,15 +80,25 @@
       (f) => !folderPolicies.some((p) => p.scope_id === f.folder_id)
     )
   );
+  const picker = createChatPicker();
   const availableChats = $derived(
-    chats.list
+    picker.results.filter(
-      .filter((c) => !chatPolicies.some((p) => p.scope_id === c.chat_id))
+      (c) => !chatPolicies.some((p) => p.scope_id === c.chat_id)
-      .filter((c) =>
-        (c.title ?? "").toLowerCase().includes(chatFilter.trim().toLowerCase())
     )
-      .slice(0, 40)
   );
 
+  $effect(() => {
+    picker.search(chatFilter);
+  });
+
+  $effect(() => {
+    for (const policy of chatPolicies) {
+      if (policy.scope_id !== null) {
+        chats.ensure(policy.scope_id);
+      }
+    }
+  });
+
   function folderTitle(id: number | null): string {
     return folders.find((f) => f.folder_id === id)?.title ?? `Папка ${id}`;
   }

frontend/src/lib/components/profile/ProfilePanel.svelte

@@ -6,19 +6,21 @@
   import ProfileInfo from "$lib/components/profile/ProfileInfo.svelte";
   import SharedLinks from "$lib/components/profile/SharedLinks.svelte";
   import SharedMedia from "$lib/components/profile/SharedMedia.svelte";
+  import StoriesArchive from "$lib/components/stories/StoriesArchive.svelte";
   import Avatar from "$lib/components/ui/Avatar.svelte";
   import EmptyState from "$lib/components/ui/EmptyState.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
   import { peerName } from "$lib/format/peer";
   import { chats } from "$lib/stores/chats.svelte";
 
-  type Tab = "info" | "media" | "files" | "links" | "calendar";
+  type Tab = "info" | "media" | "files" | "links" | "stories" | "calendar";
 
   const TABS: { id: Tab; icon: string; label: string }[] = [
     { id: "info", icon: "info", label: "Инфо" },
     { id: "media", icon: "photo", label: "Медиа" },
     { id: "files", icon: "document", label: "Файлы" },
     { id: "links", icon: "link", label: "Ссылки" },
+    { id: "stories", icon: "play-story", label: "Сторис" },
     { id: "calendar", icon: "calendar", label: "Календарь" },
   ];
 
@@ -114,6 +116,8 @@
         <SharedMedia {chatId} kinds={FILE_KINDS} layout="list" />
       {:else if tab === "links"}
         <SharedLinks {chatId} />
+      {:else if tab === "stories"}
+        <StoriesArchive {chatId} />
       {:else if tab === "calendar"}
         <ChatCalendar {chatId} />
       {/if}

frontend/src/lib/components/profile/SharedMedia.svelte

@@ -1,16 +1,29 @@
 <script lang="ts">
   import { untrack } from "svelte";
   import { goto } from "$app/navigation";
+  import { downloadMedia } from "$lib/api/download";
   import { getChatMedia } from "$lib/api/endpoints";
-  import { type InlineMedia, loadMediaItem, visualKind } from "$lib/api/media";
+  import {
+    type InlineMedia,
+    loadMediaItem,
+    type ViewerItem,
+    visualKind,
+  } from "$lib/api/media";
   import type { MediaView } from "$lib/api/types";
+  import MediaViewer from "$lib/components/MediaViewer.svelte";
+  import ContextMenu from "$lib/components/ui/ContextMenu.svelte";
+  import ContextMenuItem from "$lib/components/ui/ContextMenuItem.svelte";
   import EmptyState from "$lib/components/ui/EmptyState.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
   import { formatListDate } from "$lib/format/datetime";
   import { formatBytes, mediaKindLabel } from "$lib/format/media";
+  import { poster } from "$lib/media/poster";
   import { accounts } from "$lib/stores/accounts.svelte";
+  import { shareUi } from "$lib/stores/shares.svelte";
+  import { toasts } from "$lib/stores/toasts.svelte";
   import { ui } from "$lib/stores/ui.svelte";
+  import { isMobile } from "$lib/viewport";
 
   interface Props {
     chatId: number;
@@ -25,9 +38,39 @@
   let items = $state<MediaView[]>([]);
   let loading = $state(false);
   let done = $state(false);
+  let viewerOpen = $state(false);
+  let viewerIndex = $state(0);
   const previews = $state<Record<number, InlineMedia>>({});
   let token = 0;
 
+  const viewerItems = $derived<ViewerItem[]>(
+    items.map((item) => ({
+      messageId: item.message_id,
+      mediaId: item.id,
+      kind: item.kind,
+      downloaded: item.downloaded,
+      fileName: item.file_name,
+      fileSize: item.file_size,
+      mime: item.mime,
+    }))
+  );
+
+  function displayName(item: MediaView): string {
+    return item.file_name ?? mediaKindLabel(item.kind) ?? "Файл";
+  }
+
+  async function save(item: MediaView) {
+    try {
+      await downloadMedia(item.id);
+    } catch {
+      toasts.error("Не удалось скачать файл");
+    }
+  }
+
+  function share(item: MediaView) {
+    shareUi.share({ kind: "media", mediaId: item.id }, displayName(item));
+  }
+
   async function loadMore() {
     if (loading || done) {
       return;
@@ -92,6 +135,7 @@
           kind: item.kind,
           downloaded: item.downloaded,
           mime: item.mime,
+          file_name: item.file_name,
           file_size: item.file_size,
           ttl_seconds: item.ttl_seconds,
           duration: null,
@@ -109,9 +153,17 @@
     };
   });
 
-  function open(messageId: number) {
+  function open(index: number) {
+    viewerIndex = index;
+    viewerOpen = true;
+  }
+
+  function jump(messageId: number) {
     ui.requestJump(chatId, messageId);
     goto(`/app/${chatId}`);
+    if (isMobile()) {
+      ui.closePanel();
+    }
   }
 
   function preview(item: MediaView): InlineMedia | undefined {
@@ -127,12 +179,29 @@
   {/if}
 {:else if layout === "grid"}
   <div class="grid">
-    {#each items as item (item.id)}
+    {#each items as item, index (item.id)}
-      <button type="button" class="tile" onclick={() => open(item.message_id)}>
+      <ContextMenu>
+        {#snippet children({ props })}
+          <button
+            {...props}
+            type="button"
+            class="tile"
+            tabindex="0"
+            onclick={() => open(index)}
+          >
             {#if preview(item)?.state === "ready"}
-          {@const ready = preview(item) as Extract<InlineMedia, { state: "ready" }>}
+              {@const ready = preview(item) as Extract<
+                InlineMedia,
+                { state: "ready" }
+              >}
               {#if visualKind(item.kind) === "video"}
-            <video src={ready.url} muted preload="metadata"></video>
+                <video
+                  src={ready.url}
+                  muted
+                  playsinline
+                  preload="metadata"
+                  use:poster
+                ></video>
                 <span class="play"><Icon name="play" size="1.5rem" /></span>
               {:else}
                 <img src={ready.url} alt="">
@@ -143,16 +212,41 @@
               >
             {/if}
           </button>
+        {/snippet}
+        {#snippet menu()}
+          <ContextMenuItem icon="open-in-new-tab" onselect={() => open(index)}
+            >Открыть на весь экран</ContextMenuItem
+          >
+          <ContextMenuItem icon="reply" onselect={() => jump(item.message_id)}
+            >Перейти к сообщению</ContextMenuItem
+          >
+          {#if item.downloaded}
+            <ContextMenuItem icon="download" onselect={() => save(item)}
+              >Скачать файл</ContextMenuItem
+            >
+            <ContextMenuItem icon="allow-share" onselect={() => share(item)}
+              >Доступ по ссылке</ContextMenuItem
+            >
+          {/if}
+        {/snippet}
+      </ContextMenu>
     {/each}
   </div>
 {:else}
   <ul class="list">
-    {#each items as item (item.id)}
+    {#each items as item, index (item.id)}
       <li>
-        <button type="button" onclick={() => open(item.message_id)}>
+        <ContextMenu>
+          {#snippet children({ props })}
+            <button
+              {...props}
+              type="button"
+              tabindex="0"
+              onclick={() => open(index)}
+            >
               <span class="file-icon"><Icon name="document" /></span>
               <span class="meta">
-            <span class="name">{mediaKindLabel(item.kind)}</span>
+                <span class="name">{displayName(item)}</span>
                 <span class="sub">
                   {formatListDate(item.created_at)}
                   {#if item.file_size}
@@ -161,6 +255,24 @@
                 </span>
               </span>
             </button>
+          {/snippet}
+          {#snippet menu()}
+            <ContextMenuItem icon="open-in-new-tab" onselect={() => open(index)}
+              >Открыть</ContextMenuItem
+            >
+            <ContextMenuItem icon="reply" onselect={() => jump(item.message_id)}
+              >Перейти к сообщению</ContextMenuItem
+            >
+            {#if item.downloaded}
+              <ContextMenuItem icon="download" onselect={() => save(item)}
+                >Скачать файл</ContextMenuItem
+              >
+              <ContextMenuItem icon="allow-share" onselect={() => share(item)}
+                >Доступ по ссылке</ContextMenuItem
+              >
+            {/if}
+          {/snippet}
+        </ContextMenu>
       </li>
     {/each}
   </ul>
@@ -177,6 +289,13 @@
   </button>
 {/if}
 
+<MediaViewer
+  bind:open={viewerOpen}
+  bind:index={viewerIndex}
+  {chatId}
+  items={viewerItems}
+/>
+
 <style lang="scss">
   .center {
     display: flex;

frontend/src/lib/components/search/SearchMessageItem.svelte

@@ -19,6 +19,7 @@
   const ownId = $derived(accounts.selected?.tg_user_id ?? null);
 
   $effect(() => {
+    chats.ensure(hit.chat_id);
     const ids: number[] = [];
     if (hit.chat_id > 0) {
       ids.push(hit.chat_id);

frontend/src/lib/components/settings/Settings.svelte

@@ -52,6 +52,11 @@
         label="Сторис"
         onclick={() => ui.openPanel("stories-all")}
       />
+      <SettingsItem
+        icon="allow-share"
+        label="Файлы по ссылке"
+        onclick={() => ui.openPanel("shares")}
+      />
       <SettingsItem
         icon="eye"
         label="Отслеживания"

frontend/src/lib/components/shares/ShareDialog.svelte

@@ -0,0 +1,471 @@
+<script lang="ts">
+  import { Dialog } from "bits-ui";
+  import { untrack } from "svelte";
+  import { ApiError } from "$lib/api/client";
+  import {
+    createShare,
+    lookupShare,
+    revokeShare,
+    type ShareSettings,
+    shareUrl,
+    updateShare,
+  } from "$lib/api/shares";
+  import type { FileShare, ShareSubject } from "$lib/api/types";
+  import ShareLinkField from "$lib/components/shares/ShareLinkField.svelte";
+  import Button from "$lib/components/ui/Button.svelte";
+  import Icon from "$lib/components/ui/Icon.svelte";
+  import QrCode from "$lib/components/ui/QrCode.svelte";
+  import Spinner from "$lib/components/ui/Spinner.svelte";
+  import { formatShareLimits } from "$lib/format/shares";
+  import { toasts } from "$lib/stores/toasts.svelte";
+
+  interface Props {
+    label?: string;
+    onchange?: (share: FileShare | null) => void;
+    open: boolean;
+    subject: ShareSubject | null;
+  }
+
+  let {
+    open = $bindable(),
+    subject,
+    label = "файл",
+    onchange,
+  }: Props = $props();
+
+  const HOUR = 3600;
+  const DAY = 24 * HOUR;
+
+  const KEEP = -1;
+
+  const expiryChoices = [
+    { label: "Бессрочно", value: null },
+    { label: "1 час", value: HOUR },
+    { label: "24 часа", value: DAY },
+    { label: "7 дней", value: 7 * DAY },
+    { label: "30 дней", value: 30 * DAY },
+  ];
+
+  const keepChoice = { label: "Как есть", value: KEEP };
+
+  const limitChoices = [
+    { label: "Без лимита", value: null },
+    { label: "1", value: 1 },
+    { label: "5", value: 5 },
+    { label: "25", value: 25 },
+    { label: "100", value: 100 },
+  ];
+
+  let share = $state<FileShare | null>(null);
+  let loading = $state(false);
+  let busy = $state(false);
+  let expiresIn = $state<number | null>(null);
+  let maxDownloads = $state<number | null>(null);
+  let showQr = $state(false);
+  let token = 0;
+
+  const settings = $derived<ShareSettings>({
+    expiresInSeconds: expiresIn === KEEP ? null : expiresIn,
+    keepExpiry: expiresIn === KEEP,
+    maxDownloads,
+  });
+  const liveExpiryChoices = $derived(
+    share?.expires_at ? [keepChoice, ...expiryChoices] : expiryChoices
+  );
+
+  function fail(error: unknown, fallback: string) {
+    toasts.error(error instanceof ApiError ? error.detail : fallback);
+  }
+
+  function adopt(next: FileShare | null) {
+    share = next;
+    onchange?.(next);
+  }
+
+  async function load(target: ShareSubject) {
+    loading = true;
+    share = null;
+    showQr = false;
+    expiresIn = null;
+    maxDownloads = null;
+    const current = ++token;
+    try {
+      const found = await lookupShare(target);
+      if (current === token) {
+        share = found;
+        maxDownloads = found?.max_downloads ?? null;
+        expiresIn = found?.expires_at ? KEEP : null;
+      }
+    } catch (error) {
+      if (current === token) {
+        fail(error, "Не удалось проверить ссылку");
+        open = false;
+      }
+    } finally {
+      if (current === token) {
+        loading = false;
+      }
+    }
+  }
+
+  async function publish() {
+    if (!subject || busy) {
+      return;
+    }
+    busy = true;
+    try {
+      adopt(await createShare(subject, settings));
+      toasts.success("Доступ по ссылке открыт");
+    } catch (error) {
+      fail(error, "Не удалось открыть доступ");
+    } finally {
+      busy = false;
+    }
+  }
+
+  async function applyLimits() {
+    if (!share || busy) {
+      return;
+    }
+    busy = true;
+    try {
+      adopt(await updateShare(share.id, settings));
+      toasts.success("Настройки ссылки обновлены");
+    } catch (error) {
+      fail(error, "Не удалось обновить ссылку");
+    } finally {
+      busy = false;
+    }
+  }
+
+  async function revoke() {
+    if (!share || busy) {
+      return;
+    }
+    busy = true;
+    try {
+      await revokeShare(share.id);
+      adopt(null);
+      toasts.success("Доступ отозван");
+      open = false;
+    } catch (error) {
+      fail(error, "Не удалось отозвать доступ");
+    } finally {
+      busy = false;
+    }
+  }
+
+  $effect(() => {
+    const target = subject;
+    const isOpen = open;
+    untrack(() => {
+      if (isOpen && target) {
+        load(target);
+      }
+    });
+  });
+</script>
+
+<Dialog.Root bind:open>
+  <Dialog.Portal>
+    <Dialog.Overlay class="dialog-overlay" />
+    <Dialog.Content class="dialog-content">
+      <header class="dialog-head">
+        <Dialog.Title class="dialog-title">Доступ по ссылке</Dialog.Title>
+        <Dialog.Close class="dialog-close" aria-label="Закрыть">
+          <Icon name="close" size="1.25rem" />
+        </Dialog.Close>
+      </header>
+
+      <div class="dialog-body">
+        {#if loading}
+          <div class="center"><Spinner /></div>
+        {:else if share}
+          <div class="subject live">
+            <span class="badge"
+              ><Icon name="allow-share" size="1.125rem" /></span
+            >
+            <div class="subject-text">
+              <strong>{share.file_name}</strong>
+              <span>{formatShareLimits(share)}</span>
+            </div>
+          </div>
+
+          <ShareLinkField url={shareUrl(share)} />
+
+          <div class="qr-row">
+            <button
+              type="button"
+              class="qr-toggle"
+              onclick={() => {
+                showQr = !showQr;
+              }}
+            >
+              <Icon name={showQr ? "collapse" : "webapp"} size="1rem" />
+              {showQr ? "Скрыть QR-код" : "Показать QR-код"}
+            </button>
+          </div>
+          {#if showQr}
+            <div class="qr-slot">
+              <QrCode value={shareUrl(share)} label="QR-код ссылки на файл" />
+            </div>
+          {/if}
+
+          <p class="hint raw">
+            Ссылка отдаёт файл как есть: картинки и видео откроются прямо в
+            браузере, <code>curl -O {shareUrl(share)}</code> скачает под
+            настоящим именем. Превью-краулеры Telegram скачивания не списывают.
+          </p>
+
+          <fieldset class="choices">
+            <legend>Лимит скачиваний</legend>
+            <div class="segments">
+              {#each limitChoices as choice (choice.label)}
+                <button
+                  type="button"
+                  class="segment"
+                  class:selected={maxDownloads === choice.value}
+                  onclick={() => {
+                    maxDownloads = choice.value;
+                  }}
+                >
+                  {choice.label}
+                </button>
+              {/each}
+            </div>
+          </fieldset>
+
+          <fieldset class="choices">
+            <legend>Срок жизни ссылки</legend>
+            <div class="segments">
+              {#each liveExpiryChoices as choice (choice.label)}
+                <button
+                  type="button"
+                  class="segment"
+                  class:selected={expiresIn === choice.value}
+                  onclick={() => {
+                    expiresIn = choice.value;
+                  }}
+                >
+                  {choice.label}
+                </button>
+              {/each}
+            </div>
+          </fieldset>
+        {:else}
+          <div class="subject">
+            <span class="badge muted"
+              ><Icon name="lock" size="1.125rem" /></span
+            >
+            <div class="subject-text">
+              <strong>{label}</strong>
+              <span>Сейчас доступен только вам</span>
+            </div>
+          </div>
+
+          <fieldset class="choices">
+            <legend>Срок жизни ссылки</legend>
+            <div class="segments">
+              {#each expiryChoices as choice (choice.label)}
+                <button
+                  type="button"
+                  class="segment"
+                  class:selected={expiresIn === choice.value}
+                  onclick={() => {
+                    expiresIn = choice.value;
+                  }}
+                >
+                  {choice.label}
+                </button>
+              {/each}
+            </div>
+          </fieldset>
+
+          <fieldset class="choices">
+            <legend>Лимит скачиваний</legend>
+            <div class="segments">
+              {#each limitChoices as choice (choice.label)}
+                <button
+                  type="button"
+                  class="segment"
+                  class:selected={maxDownloads === choice.value}
+                  onclick={() => {
+                    maxDownloads = choice.value;
+                  }}
+                >
+                  {choice.label}
+                </button>
+              {/each}
+            </div>
+          </fieldset>
+
+          <p class="hint">
+            Файл откроется всем, у кого есть ссылка. Отозвать можно в любой
+            момент.
+          </p>
+        {/if}
+      </div>
+
+      {#if !loading}
+        <div class="dialog-actions">
+          {#if share}
+            <Button variant="danger" pill loading={busy} onclick={revoke}>
+              Отозвать
+            </Button>
+            <Button pill loading={busy} onclick={applyLimits}>Сохранить</Button>
+          {:else}
+            <Button pill fluid loading={busy} onclick={publish}>
+              Открыть доступ
+            </Button>
+          {/if}
+        </div>
+      {/if}
+    </Dialog.Content>
+  </Dialog.Portal>
+</Dialog.Root>
+
+<style lang="scss">
+  .center {
+    display: flex;
+    justify-content: center;
+    padding: 2rem 0;
+  }
+
+  .subject {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    margin-bottom: 1.25rem;
+  }
+
+  .badge {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    flex-shrink: 0;
+
+    width: 2.5rem;
+    height: 2.5rem;
+    border-radius: 50%;
+
+    color: var(--color-white);
+    background-color: var(--color-green);
+
+    &.muted {
+      color: var(--color-text-secondary);
+      background-color: var(--color-background-secondary);
+    }
+  }
+
+  .subject-text {
+    display: flex;
+    flex-direction: column;
+    min-width: 0;
+
+    strong {
+      overflow: hidden;
+      font-size: 0.9375rem;
+      font-weight: var(--font-weight-medium);
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+
+    span {
+      font-size: 0.8125rem;
+      color: var(--color-text-secondary);
+    }
+  }
+
+  .qr-row {
+    display: flex;
+    justify-content: center;
+    margin-top: 0.5rem;
+  }
+
+  .qr-toggle {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.375rem;
+
+    padding: 0.25rem 0.5rem;
+    border: 0;
+
+    font-family: inherit;
+    font-size: 0.8125rem;
+    color: var(--color-primary);
+
+    cursor: pointer;
+    background: transparent;
+  }
+
+  .qr-slot {
+    --qr-bg: transparent;
+    --qr-fg: var(--color-text);
+
+    width: min(11rem, 60%);
+    margin: 0.25rem auto 0;
+  }
+
+  .hint {
+    margin: 1rem 0 0;
+    font-size: 0.8125rem;
+    line-height: 1.45;
+    color: var(--color-text-secondary);
+
+    &.raw {
+      margin-top: 0.875rem;
+    }
+
+    code {
+      overflow-wrap: anywhere;
+
+      padding: 0.0625rem 0.25rem;
+      border-radius: 0.25rem;
+
+      font-size: 0.75rem;
+
+      background-color: var(--color-background-secondary);
+    }
+  }
+
+  .choices {
+    margin: 1.25rem 0 0;
+    padding: 0;
+    border: 0;
+  }
+
+  legend {
+    padding: 0 0 0.5rem;
+    font-size: 0.8125rem;
+    color: var(--color-text-secondary);
+  }
+
+  .segments {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.375rem;
+  }
+
+  .segment {
+    padding: 0.375rem 0.75rem;
+    border: 1px solid var(--color-borders);
+    border-radius: 1rem;
+
+    font-family: inherit;
+    font-size: 0.8125rem;
+    color: var(--color-text);
+
+    cursor: pointer;
+    background-color: transparent;
+    transition:
+      background-color 0.15s,
+      border-color 0.15s,
+      color 0.15s;
+
+    &.selected {
+      border-color: transparent;
+      color: var(--color-white);
+      background-color: var(--color-primary);
+    }
+  }
+</style>

frontend/src/lib/components/shares/ShareLinkField.svelte

@@ -0,0 +1,81 @@
+<script lang="ts">
+  import Icon from "$lib/components/ui/Icon.svelte";
+  import { toasts } from "$lib/stores/toasts.svelte";
+
+  interface Props {
+    url: string;
+  }
+
+  const { url }: Props = $props();
+
+  const COPIED_MS = 1600;
+
+  let copied = $state(false);
+  let timer: ReturnType<typeof setTimeout> | null = null;
+
+  async function copy() {
+    try {
+      await navigator.clipboard.writeText(url);
+    } catch {
+      toasts.error("Не удалось скопировать ссылку");
+      return;
+    }
+    copied = true;
+    if (timer) {
+      clearTimeout(timer);
+    }
+    timer = setTimeout(() => {
+      copied = false;
+    }, COPIED_MS);
+  }
+</script>
+
+<button type="button" class="link-field" class:copied onclick={copy}>
+  <span class="url">{url}</span>
+  <span class="action">
+    <Icon name={copied ? "check" : "copy"} size="1.125rem" />
+  </span>
+</button>
+
+<style lang="scss">
+  .link-field {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+
+    width: 100%;
+    padding: 0.625rem 0.625rem 0.625rem 0.875rem;
+    border: 1px solid var(--color-borders);
+    border-radius: 0.75rem;
+
+    font-family: inherit;
+    text-align: start;
+
+    cursor: pointer;
+    background-color: var(--color-background-secondary);
+    transition:
+      border-color 0.15s,
+      color 0.15s;
+
+    &.copied {
+      border-color: var(--color-green);
+      color: var(--color-green);
+    }
+  }
+
+  .url {
+    overflow-wrap: anywhere;
+    flex: 1;
+
+    font-family: ui-monospace, "SF Mono", Menlo, monospace;
+    font-size: 0.8125rem;
+    line-height: 1.35;
+    color: inherit;
+  }
+
+  .action {
+    display: flex;
+    flex-shrink: 0;
+    color: inherit;
+  }
+</style>

frontend/src/lib/components/shares/SharesPanel.svelte

@@ -0,0 +1,472 @@
+<script lang="ts">
+  import { goto } from "$app/navigation";
+  import {
+    deleteShare,
+    listShares,
+    reissueShare,
+    revokeShare,
+    shareState,
+    shareUrl,
+  } from "$lib/api/shares";
+  import type { FileShare } from "$lib/api/types";
+  import ShareLinkField from "$lib/components/shares/ShareLinkField.svelte";
+  import ContextMenu from "$lib/components/ui/ContextMenu.svelte";
+  import ContextMenuItem from "$lib/components/ui/ContextMenuItem.svelte";
+  import EmptyState from "$lib/components/ui/EmptyState.svelte";
+  import Icon from "$lib/components/ui/Icon.svelte";
+  import Spinner from "$lib/components/ui/Spinner.svelte";
+  import { formatFull } from "$lib/format/datetime";
+  import { formatBytes } from "$lib/format/media";
+  import { formatDownloads, formatExpiry, plural } from "$lib/format/shares";
+  import { accounts } from "$lib/stores/accounts.svelte";
+  import { shareUi } from "$lib/stores/shares.svelte";
+  import { toasts } from "$lib/stores/toasts.svelte";
+  import { ui } from "$lib/stores/ui.svelte";
+
+  type Filter = "active" | "all";
+
+  const stateLabels: Record<string, string> = {
+    active: "Открыт",
+    revoked: "Отозван",
+    expired: "Истёк",
+    exhausted: "Лимит исчерпан",
+  };
+
+  let items = $state<FileShare[]>([]);
+  let loading = $state(false);
+  let filter = $state<Filter>("active");
+  let expanded = $state<number | null>(null);
+  let token = 0;
+
+  const visible = $derived(
+    filter === "active"
+      ? items.filter((item) => shareState(item) === "active")
+      : items
+  );
+  const activeCount = $derived(
+    items.filter((item) => shareState(item) === "active").length
+  );
+
+  async function load() {
+    const current = ++token;
+    loading = true;
+    try {
+      const rows = await listShares();
+      if (current === token) {
+        items = rows;
+      }
+    } catch {
+      if (current === token) {
+        toasts.error("Не удалось загрузить список ссылок");
+      }
+    } finally {
+      if (current === token) {
+        loading = false;
+      }
+    }
+  }
+
+  function replace(next: FileShare) {
+    items = items.map((item) => (item.id === next.id ? next : item));
+  }
+
+  function jump(share: FileShare) {
+    if (share.chat_id === null || share.message_id === null) {
+      if (share.peer_id !== null) {
+        goto(`/app/${share.peer_id}`);
+        ui.openPanel("stories");
+      }
+      return;
+    }
+    goto(`/app/${share.chat_id}`);
+    ui.requestJump(share.chat_id, share.message_id);
+    ui.closePanel();
+  }
+
+  async function copy(share: FileShare) {
+    await navigator.clipboard.writeText(shareUrl(share));
+    toasts.success("Ссылка скопирована");
+  }
+
+  async function revoke(share: FileShare) {
+    try {
+      replace(await revokeShare(share.id));
+      toasts.success("Доступ отозван");
+    } catch {
+      toasts.error("Не удалось отозвать доступ");
+    }
+  }
+
+  async function reissue(share: FileShare) {
+    try {
+      replace(await reissueShare(share.id));
+      toasts.success("Выдана новая ссылка");
+    } catch {
+      toasts.error("Не удалось перевыпустить ссылку");
+    }
+  }
+
+  async function forget(share: FileShare) {
+    try {
+      await deleteShare(share.id);
+      items = items.filter((item) => item.id !== share.id);
+    } catch {
+      toasts.error("Не удалось удалить запись");
+    }
+  }
+
+  let loadedKey = "";
+
+  $effect(() => {
+    const key = `${accounts.selectedId}:${shareUi.revision}`;
+    if (accounts.selectedId !== null && key !== loadedKey) {
+      loadedKey = key;
+      load();
+    }
+  });
+</script>
+
+<div class="toolbar">
+  <div class="tabs">
+    <button
+      type="button"
+      class="tab"
+      class:selected={filter === "active"}
+      onclick={() => {
+        filter = "active";
+      }}
+    >
+      Открытые{activeCount ? ` · ${activeCount}` : ""}
+    </button>
+    <button
+      type="button"
+      class="tab"
+      class:selected={filter === "all"}
+      onclick={() => {
+        filter = "all";
+      }}
+    >
+      Все
+    </button>
+  </div>
+  <button
+    type="button"
+    class="reload"
+    aria-label="Обновить"
+    onclick={() => load()}
+  >
+    <Icon name="reload" size="1.125rem" />
+  </button>
+</div>
+
+{#if loading && items.length === 0}
+  <div class="center"><Spinner /></div>
+{:else if visible.length === 0}
+  <EmptyState
+    title="Ничего не открыто"
+    description="Откройте доступ к файлу из меню медиа"
+  />
+{:else}
+  <ul class="list">
+    {#each visible as share (share.id)}
+      {@const state = shareState(share)}
+      <li class="row" class:inactive={state !== "active"}>
+        <ContextMenu>
+          {#snippet children({ props })}
+            <button
+              {...props}
+              type="button"
+              class="head"
+              onclick={() => {
+                expanded = expanded === share.id ? null : share.id;
+              }}
+            >
+              <span class="glyph" class:muted={state !== "active"}>
+                <Icon
+                  name={state === "active" ? "allow-share" : "no-share"}
+                  size="1.125rem"
+                />
+              </span>
+              <span class="text">
+                <span class="name">{share.file_name}</span>
+                <span class="sub">
+                  {stateLabels[state]}
+                  · {formatDownloads(share)}
+                  {#if share.file_size}
+                    · {formatBytes(share.file_size)}
+                  {/if}
+                </span>
+                <span class="sub">
+                  {share.title ?? "Без чата"}
+                  · {formatExpiry(share)}
+                </span>
+              </span>
+              <span class="chevron" class:open={expanded === share.id}>
+                <Icon name="down" size="1rem" />
+              </span>
+            </button>
+          {/snippet}
+          {#snippet menu()}
+            <ContextMenuItem icon="copy" onselect={() => copy(share)}>
+              Копировать ссылку
+            </ContextMenuItem>
+            {#if share.message_id !== null || share.peer_id !== null}
+              <ContextMenuItem icon="reply" onselect={() => jump(share)}>
+                Перейти к сообщению
+              </ContextMenuItem>
+            {/if}
+            {#if state === "active"}
+              <ContextMenuItem
+                icon="link-broken"
+                onselect={() => revoke(share)}
+              >
+                Отозвать
+              </ContextMenuItem>
+            {:else}
+              <ContextMenuItem icon="replace" onselect={() => reissue(share)}>
+                Выдать новую ссылку
+              </ContextMenuItem>
+              <ContextMenuItem icon="delete" onselect={() => forget(share)}>
+                Убрать из списка
+              </ContextMenuItem>
+            {/if}
+          {/snippet}
+        </ContextMenu>
+
+        {#if expanded === share.id}
+          <div class="details">
+            <ShareLinkField url={shareUrl(share)} />
+            {#if share.last_download_at}
+              <p class="last">
+                Последнее скачивание: {formatFull(share.last_download_at)}
+              </p>
+            {/if}
+            <div class="actions">
+              {#if share.message_id !== null || share.peer_id !== null}
+                <button type="button" class="pill" onclick={() => jump(share)}>
+                  <Icon name="reply" size="1rem" />К сообщению
+                </button>
+              {/if}
+              {#if state === "active"}
+                <button
+                  type="button"
+                  class="pill danger"
+                  onclick={() => revoke(share)}
+                >
+                  <Icon name="link-broken" size="1rem" />Отозвать
+                </button>
+              {:else}
+                <button
+                  type="button"
+                  class="pill"
+                  onclick={() => reissue(share)}
+                >
+                  <Icon name="replace" size="1rem" />Новая ссылка
+                </button>
+              {/if}
+            </div>
+          </div>
+        {/if}
+      </li>
+    {/each}
+  </ul>
+  <p class="footnote">
+    {visible.length}
+    {plural(visible.length, "ссылка", "ссылки", "ссылок")}
+    · превью-краулеры не списывают скачивания
+  </p>
+{/if}
+
+<style lang="scss">
+  .center {
+    display: flex;
+    justify-content: center;
+    padding: 2rem 0;
+  }
+
+  .toolbar {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 0.5rem;
+
+    padding: 0.625rem 0.75rem;
+    border-bottom: 1px solid var(--color-borders);
+  }
+
+  .tabs {
+    display: flex;
+    gap: 0.375rem;
+  }
+
+  .tab {
+    padding: 0.3125rem 0.75rem;
+    border: 0;
+    border-radius: 1rem;
+
+    font-family: inherit;
+    font-size: 0.8125rem;
+    color: var(--color-text-secondary);
+
+    cursor: pointer;
+    background-color: var(--color-background-secondary);
+
+    &.selected {
+      color: var(--color-white);
+      background-color: var(--color-primary);
+    }
+  }
+
+  .reload {
+    display: flex;
+    padding: 0.375rem;
+    border: 0;
+    border-radius: 50%;
+
+    color: var(--color-text-secondary);
+    cursor: pointer;
+    background: transparent;
+
+    &:hover {
+      background-color: var(--color-chat-hover);
+    }
+  }
+
+  .list {
+    display: flex;
+    flex-direction: column;
+    margin: 0;
+    padding: 0.5rem;
+    list-style: none;
+  }
+
+  .row {
+    border-radius: 0.75rem;
+
+    &.inactive .name {
+      color: var(--color-text-secondary);
+      text-decoration: line-through;
+    }
+  }
+
+  .head {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+
+    width: 100%;
+    padding: 0.5rem;
+    border: 0;
+    border-radius: 0.75rem;
+
+    font-family: inherit;
+    text-align: start;
+
+    cursor: pointer;
+    background: transparent;
+
+    &:hover {
+      background-color: var(--color-chat-hover);
+    }
+  }
+
+  .glyph {
+    display: flex;
+    flex-shrink: 0;
+    align-items: center;
+    justify-content: center;
+
+    width: 2.25rem;
+    height: 2.25rem;
+    border-radius: 50%;
+
+    color: var(--color-white);
+    background-color: var(--color-green);
+
+    &.muted {
+      color: var(--color-text-secondary);
+      background-color: var(--color-background-secondary);
+    }
+  }
+
+  .text {
+    display: flex;
+    flex: 1;
+    flex-direction: column;
+    gap: 0.0625rem;
+    min-width: 0;
+  }
+
+  .name {
+    overflow: hidden;
+    font-size: 0.9375rem;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+
+  .sub {
+    overflow: hidden;
+    font-size: 0.75rem;
+    color: var(--color-text-secondary);
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+
+  .chevron {
+    display: flex;
+    flex-shrink: 0;
+    color: var(--color-text-secondary);
+    transition: transform 0.15s;
+
+    &.open {
+      transform: rotate(180deg);
+    }
+  }
+
+  .details {
+    display: flex;
+    flex-direction: column;
+    gap: 0.5rem;
+    padding: 0 0.5rem 0.75rem;
+  }
+
+  .last {
+    margin: 0;
+    font-size: 0.75rem;
+    color: var(--color-text-secondary);
+  }
+
+  .actions {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.375rem;
+  }
+
+  .pill {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.25rem;
+
+    padding: 0.3125rem 0.6875rem;
+    border: 1px solid var(--color-borders);
+    border-radius: 1rem;
+
+    font-family: inherit;
+    font-size: 0.8125rem;
+    color: var(--color-text);
+
+    cursor: pointer;
+    background: transparent;
+
+    &.danger {
+      color: var(--color-error);
+    }
+  }
+
+  .footnote {
+    margin: 0;
+    padding: 0 1rem 1rem;
+    font-size: 0.75rem;
+    color: var(--color-text-secondary);
+  }
+</style>

frontend/src/lib/components/stories/AllStoriesArchive.svelte

@@ -1,16 +1,24 @@
 <script lang="ts">
   import { untrack } from "svelte";
-  import { getPeers, getStories } from "$lib/api/endpoints";
+  import {
+    enqueueStoriesBackfill,
+    getChat,
+    getPeers,
+    getStories,
+  } from "$lib/api/endpoints";
   import { loadStoryMedia } from "$lib/api/stories";
   import type { StoryView } from "$lib/api/types";
+  import StoryTile from "$lib/components/stories/StoryTile.svelte";
   import StoryViewer from "$lib/components/stories/StoryViewer.svelte";
   import Avatar from "$lib/components/ui/Avatar.svelte";
+  import Button from "$lib/components/ui/Button.svelte";
   import EmptyState from "$lib/components/ui/EmptyState.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
   import { peerName } from "$lib/format/peer";
+  import { poster } from "$lib/media/poster";
   import { accounts } from "$lib/stores/accounts.svelte";
-  import { chats } from "$lib/stores/chats.svelte";
+  import { toasts } from "$lib/stores/toasts.svelte";
 
   interface Group {
     hasAvatar: boolean;
@@ -25,18 +33,20 @@
   let groups = $state<Group[]>([]);
   let loading = $state(false);
   const previews = $state<Record<number, string | null>>({});
+  const expanded = $state<Record<number, boolean>>({});
   let token = 0;
 
   let viewerOpen = $state(false);
   let viewerIndex = $state(0);
   let viewerItems = $state<StoryView[]>([]);
   let viewerPeerId = $state(0);
+  let backfilling = $state<number | null>(null);
 
   async function load() {
     const current = token;
     loading = true;
     try {
-      const stories = await getStories(0, { limit: FETCH_LIMIT });
+      const stories = await getStories(null, { limit: FETCH_LIMIT });
       if (current !== token) {
         return;
       }
@@ -50,11 +60,20 @@
         }
       }
       const peerIds = [...byPeer.keys()].filter((id) => id > 0);
-      const peers = await getPeers(peerIds);
+      const chatIds = [...byPeer.keys()].filter((id) => id < 0);
+      const [peers, fetched] = await Promise.all([
+        getPeers(peerIds),
+        Promise.all(chatIds.map((id) => getChat(id))),
+      ]);
       if (current !== token) {
         return;
       }
       const peerById = new Map(peers.map((peer) => [peer.peer_id, peer]));
+      const chatById = new Map(
+        fetched
+          .filter((item) => item !== null)
+          .map((item) => [item.chat_id, item])
+      );
       groups = [...byPeer.entries()].map(([peerId, stories]) => {
         if (peerId > 0) {
           const peer = peerById.get(peerId) ?? null;
@@ -66,7 +85,7 @@
             stories,
           };
         }
-        const chat = chats.byId(peerId);
+        const chat = chatById.get(peerId);
         return {
           peerId,
           kind: "chat" as const,
@@ -93,12 +112,17 @@
       for (const key of Object.keys(previews)) {
         delete previews[Number(key)];
       }
+      for (const key of Object.keys(expanded)) {
+        delete expanded[Number(key)];
+      }
       load().catch(() => undefined);
     });
   });
 
   $effect(() => {
-    const list = groups.flatMap((group) => group.stories);
+    const list = groups
+      .filter((group) => expanded[group.peerId])
+      .flatMap((group) => group.stories);
     let active = true;
     untrack(() => {
       for (const item of list) {
@@ -118,12 +142,31 @@
     };
   });
 
+  async function backfill(peerId: number) {
+    if (backfilling !== null) {
+      return;
+    }
+    backfilling = peerId;
+    try {
+      await enqueueStoriesBackfill(peerId);
+      toasts.success("Загружаем старые сторис");
+    } catch {
+      toasts.error("Не удалось запустить загрузку сторис");
+    } finally {
+      backfilling = null;
+    }
+  }
+
   function openViewer(group: Group, index: number) {
     viewerItems = group.stories;
     viewerPeerId = group.peerId;
     viewerIndex = index;
     viewerOpen = true;
   }
+
+  function toggle(peerId: number) {
+    expanded[peerId] = !expanded[peerId];
+  }
 </script>
 
 {#if groups.length === 0}
@@ -136,6 +179,12 @@
   {#each groups as group (group.peerId)}
     <section class="group">
       <header class="group-head">
+        <button
+          type="button"
+          class="group-toggle"
+          aria-expanded={Boolean(expanded[group.peerId])}
+          onclick={() => toggle(group.peerId)}
+        >
           <Avatar
             name={group.name}
             colorKey={group.peerId}
@@ -145,37 +194,32 @@
           />
           <span class="group-name">{group.name}</span>
           <span class="group-count">{group.stories.length}</span>
+          <span class="chevron" class:open={expanded[group.peerId]}>
+            <Icon name="down" size="1.25rem" />
+          </span>
+        </button>
+        <Button
+          variant="translucent"
+          round
+          smaller
+          loading={backfilling === group.peerId}
+          onclick={() => backfill(group.peerId)}
+          aria-label="Загрузить старые сторис"
+        >
+          <Icon name="cloud-download" />
+        </Button>
       </header>
+      {#if expanded[group.peerId]}
         <div class="grid">
           {#each group.stories as item, index (item.story_id)}
-          <button
+            <StoryTile
-            type="button"
+              story={item}
-            class="tile"
+              preview={previews[item.story_id]}
-            class:expired={item.deleted}
+              onopen={() => openViewer(group, index)}
-            onclick={() => openViewer(group, index)}
+            />
-          >
-            {#if previews[item.story_id]}
-              {#if item.media_kind === "video"}
-                <video
-                  src={previews[item.story_id]}
-                  muted
-                  preload="metadata"
-                ></video>
-                <span class="play"><Icon name="play" size="1.5rem" /></span>
-              {:else}
-                <img src={previews[item.story_id]} alt="">
-              {/if}
-            {:else}
-              <span class="ph"><Icon name="play-story" /></span>
-            {/if}
-            {#if item.views}
-              <span class="badge views">
-                <Icon name="eye" size="0.875rem" />{item.views}
-              </span>
-            {/if}
-          </button>
           {/each}
         </div>
+      {/if}
     </section>
   {/each}
 
@@ -205,6 +249,31 @@
     padding: 0.625rem 0.75rem;
   }
 
+  .group-toggle {
+    display: flex;
+    flex: 1;
+    align-items: center;
+    gap: 0.625rem;
+
+    min-width: 0;
+    padding: 0;
+    border: 0;
+
+    text-align: left;
+    cursor: pointer;
+    background: transparent;
+  }
+
+  .chevron {
+    display: flex;
+    color: var(--color-text-secondary);
+    transition: transform 0.2s ease;
+
+    &.open {
+      transform: rotate(180deg);
+    }
+  }
+
   .group-name {
     flex: 1;
     overflow: hidden;

frontend/src/lib/components/stories/StoriesArchive.svelte

@@ -1,21 +1,33 @@
 <script lang="ts">
   import { untrack } from "svelte";
   import { page } from "$app/state";
-  import { getStories } from "$lib/api/endpoints";
+  import { enqueueStoriesBackfill, getStories } from "$lib/api/endpoints";
   import { loadStoryMedia } from "$lib/api/stories";
   import type { StoryView } from "$lib/api/types";
+  import StoryTile from "$lib/components/stories/StoryTile.svelte";
   import StoryViewer from "$lib/components/stories/StoryViewer.svelte";
+  import Button from "$lib/components/ui/Button.svelte";
   import EmptyState from "$lib/components/ui/EmptyState.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
+  import { poster } from "$lib/media/poster";
   import { accounts } from "$lib/stores/accounts.svelte";
+  import { toasts } from "$lib/stores/toasts.svelte";
+
+  interface Props {
+    chatId?: number | null;
+  }
+
+  let { chatId = null }: Props = $props();
 
   const PAGE = 60;
 
   const peerId = $derived(
-    page.params.chatId ? Number(page.params.chatId) : null
+    chatId ?? (page.params.chatId ? Number(page.params.chatId) : null)
   );
 
+  let backfilling = $state(false);
+
   let items = $state<StoryView[]>([]);
   let loading = $state(false);
   let done = $state(false);
@@ -89,50 +101,72 @@
     viewerIndex = index;
     viewerOpen = true;
   }
+
+  async function backfill(id: number) {
+    if (backfilling) {
+      return;
+    }
+    backfilling = true;
+    try {
+      await enqueueStoriesBackfill(id);
+      toasts.success("Загружаем старые сторис");
+    } catch {
+      toasts.error("Не удалось запустить загрузку сторис");
+    } finally {
+      backfilling = false;
+    }
+  }
+
+  async function reload(id: number) {
+    token++;
+    items = [];
+    done = false;
+    loading = false;
+    await loadMore(id);
+  }
 </script>
 
 {#if peerId === null}
   <EmptyState title="Сторис" description="Откройте чат" />
-{:else if items.length === 0}
+{:else}
+  <div class="toolbar">
+    <Button
+      variant="secondary"
+      pill
+      smaller
+      loading={backfilling}
+      onclick={() => peerId !== null && backfill(peerId)}
+    >
+      <Icon name="cloud-download" />Загрузить старые
+    </Button>
+    <Button
+      variant="translucent"
+      round
+      smaller
+      onclick={() => peerId !== null && reload(peerId).catch(() => undefined)}
+      aria-label="Обновить"
+    >
+      <Icon name="reload" />
+    </Button>
+  </div>
+
+  {#if items.length === 0}
     {#if loading}
       <div class="center"><Spinner /></div>
     {:else}
-    <EmptyState title="Нет сторис" />
+      <EmptyState
+        title="Нет сторис"
+        description="Нажмите «Загрузить старые», чтобы забрать архив"
+      />
     {/if}
-{:else}
+  {:else}
     <div class="grid">
       {#each items as item, index (item.story_id)}
-      <button
+        <StoryTile
-        type="button"
+          story={item}
-        class="tile"
+          preview={previews[item.story_id]}
-        class:expired={item.deleted}
+          onopen={() => openViewer(index)}
-        onclick={() => openViewer(index)}
+        />
-      >
-        {#if previews[item.story_id]}
-          {#if item.media_kind === "video"}
-            <video
-              src={previews[item.story_id]}
-              muted
-              preload="metadata"
-            ></video>
-            <span class="play"><Icon name="play" size="1.5rem" /></span>
-          {:else}
-            <img src={previews[item.story_id]} alt="">
-          {/if}
-        {:else}
-          <span class="ph"><Icon name="play-story" /></span>
-        {/if}
-        {#if item.pinned}
-          <span class="badge pin"
-            ><Icon name="story-priority" size="0.875rem" /></span
-          >
-        {/if}
-        {#if item.views}
-          <span class="badge views">
-            <Icon name="eye" size="0.875rem" />{item.views}
-          </span>
-        {/if}
-      </button>
       {/each}
     </div>
 
@@ -147,7 +181,6 @@
       </button>
     {/if}
 
-  {#if peerId !== null}
     <StoryViewer
       {peerId}
       {items}
@@ -164,6 +197,14 @@
     padding: 2rem 0;
   }
 
+  .toolbar {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    padding: 0.625rem 0.75rem;
+    border-bottom: 1px solid var(--color-borders);
+  }
+
   .grid {
     display: grid;
     grid-template-columns: repeat(3, 1fr);

frontend/src/lib/components/stories/StoryTile.svelte

@@ -0,0 +1,171 @@
+<script lang="ts">
+  import { goto } from "$app/navigation";
+  import { downloadStory } from "$lib/api/download";
+  import type { StoryView } from "$lib/api/types";
+  import ContextMenu from "$lib/components/ui/ContextMenu.svelte";
+  import ContextMenuItem from "$lib/components/ui/ContextMenuItem.svelte";
+  import Icon from "$lib/components/ui/Icon.svelte";
+  import { formatFull } from "$lib/format/datetime";
+  import { poster } from "$lib/media/poster";
+  import { shareUi } from "$lib/stores/shares.svelte";
+  import { toasts } from "$lib/stores/toasts.svelte";
+  import { ui } from "$lib/stores/ui.svelte";
+
+  interface Props {
+    onopen: () => void;
+    preview: string | null | undefined;
+    story: StoryView;
+  }
+
+  const { story, preview, onopen }: Props = $props();
+
+  const label = $derived(
+    `Сторис от ${story.date ? formatFull(story.date) : "неизвестной даты"}`
+  );
+
+  async function save() {
+    try {
+      await downloadStory(story.peer_id, story.story_id);
+    } catch {
+      toasts.error("Не удалось скачать сторис");
+    }
+  }
+
+  function share() {
+    shareUi.share(
+      { kind: "story", peerId: story.peer_id, storyId: story.story_id },
+      label
+    );
+  }
+
+  function openAuthor() {
+    goto(`/app/${story.peer_id}`);
+    ui.openPanel("profile");
+  }
+</script>
+
+<ContextMenu>
+  {#snippet children({ props })}
+    <button
+      {...props}
+      type="button"
+      class="tile"
+      class:expired={story.deleted}
+      onclick={onopen}
+    >
+      {#if preview}
+        {#if story.media_kind === "video"}
+          <video
+            src={preview}
+            muted
+            playsinline
+            preload="metadata"
+            use:poster
+          ></video>
+          <span class="play"><Icon name="play" size="1.5rem" /></span>
+        {:else}
+          <img src={preview} alt="">
+        {/if}
+      {:else}
+        <span class="ph"><Icon name="play-story" /></span>
+      {/if}
+      {#if story.pinned}
+        <span class="badge pin">
+          <Icon name="story-priority" size="0.875rem" />
+        </span>
+      {/if}
+      {#if story.views}
+        <span class="badge views">
+          <Icon name="eye" size="0.875rem" />{story.views}
+        </span>
+      {/if}
+    </button>
+  {/snippet}
+  {#snippet menu()}
+    <ContextMenuItem icon="open-in-new-tab" onselect={onopen}>
+      Открыть
+    </ContextMenuItem>
+    {#if story.downloaded}
+      <ContextMenuItem icon="download" onselect={save}>
+        Скачать
+      </ContextMenuItem>
+      <ContextMenuItem icon="allow-share" onselect={share}>
+        Доступ по ссылке
+      </ContextMenuItem>
+    {/if}
+    <ContextMenuItem icon="info" onselect={openAuthor}>
+      Профиль автора
+    </ContextMenuItem>
+  {/snippet}
+</ContextMenu>
+
+<style lang="scss">
+  .tile {
+    position: relative;
+    aspect-ratio: 9 / 16;
+    padding: 0;
+    border: 0;
+    cursor: pointer;
+    background-color: var(--color-background-secondary);
+
+    &.expired {
+      opacity: 0.55;
+    }
+  }
+
+  .tile img,
+  .tile video {
+    width: 100%;
+    height: 100%;
+    object-fit: cover;
+  }
+
+  .play {
+    position: absolute;
+    inset: 0;
+
+    display: flex;
+    align-items: center;
+    justify-content: center;
+
+    color: var(--color-white);
+    text-shadow: 0 0 4px rgb(0 0 0 / 50%);
+  }
+
+  .ph {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+
+    width: 100%;
+    height: 100%;
+
+    color: var(--color-text-secondary);
+  }
+
+  .badge {
+    position: absolute;
+
+    display: flex;
+    align-items: center;
+    gap: 0.125rem;
+
+    padding: 0.125rem 0.25rem;
+    border-radius: 0.5rem;
+
+    font-size: 0.6875rem;
+    color: var(--color-white);
+
+    background-color: rgb(0 0 0 / 45%);
+  }
+
+  .pin {
+    top: 0.25rem;
+    left: 0.25rem;
+  }
+
+  .views {
+    bottom: 0.25rem;
+    left: 0.25rem;
+  }
+</style>

frontend/src/lib/components/stories/StoryViewer.svelte

@@ -1,11 +1,16 @@
 <script lang="ts">
   import { Dialog } from "bits-ui";
   import { untrack } from "svelte";
+  import { downloadStory } from "$lib/api/download";
   import { loadStoryMedia } from "$lib/api/stories";
   import type { StoryView } from "$lib/api/types";
+  import ContextMenu from "$lib/components/ui/ContextMenu.svelte";
+  import ContextMenuItem from "$lib/components/ui/ContextMenuItem.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
   import { formatFull } from "$lib/format/datetime";
+  import { shareUi } from "$lib/stores/shares.svelte";
+  import { toasts } from "$lib/stores/toasts.svelte";
 
   interface Props {
     index: number;
@@ -22,16 +27,23 @@
   }: Props = $props();
 
   const PHOTO_SECONDS = 6;
+  const HOLD_MS = 180;
 
   let url = $state<string | null>(null);
   let loading = $state(false);
   let ready = $state(false);
   let videoProgress = $state(0);
   let muted = $state(true);
+  let held = $state(false);
+  let saving = $state(false);
+  let video = $state<HTMLVideoElement | null>(null);
   let token = 0;
+  let holdTimer: ReturnType<typeof setTimeout> | null = null;
+  let suppressTap = false;
 
   const story = $derived(items[index] ?? null);
   const isVideo = $derived(story?.media_kind === "video");
+  const canSave = $derived(Boolean(story?.downloaded));
 
   function step(delta: number) {
     const next = index + delta;
@@ -49,6 +61,37 @@
     step(1);
   }
 
+  function startHold() {
+    suppressTap = false;
+    if (holdTimer) {
+      clearTimeout(holdTimer);
+    }
+    holdTimer = setTimeout(() => {
+      held = true;
+      video?.pause();
+    }, HOLD_MS);
+  }
+
+  function releaseHold() {
+    if (holdTimer) {
+      clearTimeout(holdTimer);
+      holdTimer = null;
+    }
+    if (held) {
+      suppressTap = true;
+      held = false;
+      video?.play().catch(() => undefined);
+    }
+  }
+
+  function onTap(delta: number) {
+    if (suppressTap) {
+      suppressTap = false;
+      return;
+    }
+    step(delta);
+  }
+
   async function load(item: StoryView) {
     loading = true;
     ready = false;
@@ -63,12 +106,36 @@
   }
 
   function onVideoTime(event: Event) {
-    const video = event.currentTarget as HTMLVideoElement;
+    const element = event.currentTarget as HTMLVideoElement;
-    if (video.duration > 0) {
+    if (element.duration > 0) {
-      videoProgress = video.currentTime / video.duration;
+      videoProgress = element.currentTime / element.duration;
     }
   }
 
+  async function save() {
+    if (!story || saving) {
+      return;
+    }
+    saving = true;
+    try {
+      await downloadStory(story.peer_id, story.story_id);
+    } catch {
+      toasts.error("Не удалось скачать сторис");
+    } finally {
+      saving = false;
+    }
+  }
+
+  function share() {
+    if (!story) {
+      return;
+    }
+    shareUi.share(
+      { kind: "story", peerId: story.peer_id, storyId: story.story_id },
+      `Сторис от ${story.date ? formatFull(story.date) : "неизвестной даты"}`
+    );
+  }
+
   function onkeydown(event: KeyboardEvent) {
     if (!open) {
       return;
@@ -77,6 +144,14 @@
       step(-1);
     } else if (event.key === "ArrowRight") {
       step(1);
+    } else if (event.key === " " && !event.repeat) {
+      event.preventDefault();
+      held = !held;
+      if (held) {
+        video?.pause();
+      } else {
+        video?.play().catch(() => undefined);
+      }
     }
   }
 
@@ -97,17 +172,18 @@
       untrack(() => {
         url = null;
         ready = false;
+        held = false;
       });
     }
   });
 </script>
 
-<svelte:window {onkeydown} />
+<svelte:window {onkeydown} onpointerup={releaseHold} />
 
 <Dialog.Root bind:open>
   <Dialog.Portal>
     <Dialog.Overlay class="story-overlay" />
-    <Dialog.Content class="story-content">
+    <Dialog.Content class="story-content {held ? 'held' : ''}">
       <Dialog.Title class="story-a11y-title">Сторис</Dialog.Title>
       <div class="bars">
         {#each items as item, i (item.story_id)}
@@ -119,6 +195,7 @@
                 {#if ready && !isVideo}
                   <div
                     class="fill anim"
+                    class:paused={held}
                     style="animation-duration: {PHOTO_SECONDS}s"
                     onanimationend={advance}
                   ></div>
@@ -146,6 +223,29 @@
               <Icon name={muted ? "speaker-muted-story" : "speaker-story"} />
             </button>
           {/if}
+          {#if canSave}
+            <ContextMenu>
+              {#snippet children({ props })}
+                <button
+                  {...props}
+                  type="button"
+                  class="round"
+                  aria-label="Скачать сторис"
+                  onclick={save}
+                >
+                  <Icon name={saving ? "timer" : "download"} />
+                </button>
+              {/snippet}
+              {#snippet menu()}
+                <ContextMenuItem icon="download" onselect={save}>
+                  Скачать
+                </ContextMenuItem>
+                <ContextMenuItem icon="allow-share" onselect={share}>
+                  Доступ по ссылке
+                </ContextMenuItem>
+              {/snippet}
+            </ContextMenu>
+          {/if}
           <Dialog.Close class="round" aria-label="Закрыть">
             <Icon name="close" size="1.5rem" />
           </Dialog.Close>
@@ -158,6 +258,7 @@
         {:else if url && isVideo}
           <!-- biome-ignore lint/a11y/useMediaCaption: archived story has no captions -->
           <video
+            bind:this={video}
             class="media"
             src={url}
             autoplay
@@ -200,14 +301,22 @@
         type="button"
         class="tap prev"
         aria-label="Назад"
-        onclick={() => step(-1)}
+        onpointerdown={startHold}
+        onpointercancel={releaseHold}
+        onclick={() => onTap(-1)}
       ></button>
       <button
         type="button"
         class="tap next"
         aria-label="Вперёд"
-        onclick={() => step(1)}
+        onpointerdown={startHold}
+        onpointercancel={releaseHold}
+        onclick={() => onTap(1)}
       ></button>
+
+      {#if held}
+        <span class="hold-hint">Пауза</span>
+      {/if}
     </Dialog.Content>
   </Dialog.Portal>
 </Dialog.Root>
@@ -268,6 +377,10 @@
     &.anim {
       animation: story-progress linear forwards;
     }
+
+    &.paused {
+      animation-play-state: paused;
+    }
   }
 
   @keyframes story-progress {
@@ -376,6 +489,9 @@
 
     cursor: pointer;
     background: transparent;
+    touch-action: none;
+    user-select: none;
+    -webkit-touch-callout: none;
 
     &.prev {
       left: 0;
@@ -386,4 +502,44 @@
       width: 65%;
     }
   }
+
+  .hold-hint {
+    position: absolute;
+    bottom: 1.5rem;
+    left: 50%;
+    transform: translateX(-50%);
+
+    padding: 0.25rem 0.75rem;
+    border-radius: 1rem;
+
+    font-size: 0.75rem;
+    color: var(--color-white);
+    letter-spacing: 0.04em;
+
+    background-color: rgba(255, 255, 255, 0.16);
+    backdrop-filter: blur(6px);
+
+    animation: hold-in 0.18s ease;
+    pointer-events: none;
+    z-index: 3;
+  }
+
+  @keyframes hold-in {
+    from {
+      opacity: 0;
+      transform: translate(-50%, 0.375rem);
+    }
+    to {
+      opacity: 1;
+      transform: translate(-50%, 0);
+    }
+  }
+
+  :global(.story-content.held) .bars,
+  :global(.story-content.held) .story-head,
+  :global(.story-content.held) .caption,
+  :global(.story-content.held) .view-count {
+    opacity: 0.25;
+    transition: opacity 0.2s;
+  }
 </style>

frontend/src/lib/components/ui/ContextMenu.svelte

@@ -1,3 +1,9 @@
+<script lang="ts" module>
+  type PointerHandler = (event: PointerEvent) => void;
+
+  const claimed = new WeakSet<Event>();
+</script>
+
 <script lang="ts">
   import { ContextMenu } from "bits-ui";
   import type { Snippet } from "svelte";
@@ -8,12 +14,42 @@
   }
 
   const { children, menu }: Props = $props();
+
+  let open = $state(false);
+  let suppressClick = false;
+
+  function triggerProps(props: Record<string, unknown>) {
+    const onpointerdown = props.onpointerdown as PointerHandler;
+    const onpointerup = props.onpointerup as PointerHandler;
+    return {
+      ...props,
+      onpointerdown(event: PointerEvent) {
+        suppressClick = false;
+        if (claimed.has(event)) {
+          return;
+        }
+        claimed.add(event);
+        onpointerdown(event);
+      },
+      onpointerup(event: PointerEvent) {
+        suppressClick = open && event.pointerType !== "mouse";
+        onpointerup(event);
+      },
+      onclickcapture(event: MouseEvent) {
+        if (suppressClick) {
+          suppressClick = false;
+          event.preventDefault();
+          event.stopPropagation();
+        }
+      },
+    };
+  }
 </script>
 
-<ContextMenu.Root>
+<ContextMenu.Root bind:open>
   <ContextMenu.Trigger>
     {#snippet child({ props })}
-      {@render children({ props })}
+      {@render children({ props: triggerProps(props) })}
     {/snippet}
   </ContextMenu.Trigger>
   <ContextMenu.Portal>

frontend/src/lib/format/media.ts

@@ -1,27 +1,27 @@
 const MEDIA_KIND_LABELS: Record<string, string> = {
-  photo: "Photo",
+  photo: "Фото",
-  video: "Video",
+  video: "Видео",
   animation: "GIF",
   gif: "GIF",
-  voice: "Voice message",
+  voice: "Голосовое",
-  audio: "Audio",
+  audio: "Аудио",
-  video_note: "Video message",
+  video_note: "Кружок",
-  sticker: "Sticker",
+  sticker: "Стикер",
-  document: "File",
+  document: "Файл",
-  contact: "Contact",
+  contact: "Контакт",
-  location: "Location",
+  location: "Геопозиция",
-  venue: "Location",
+  venue: "Геопозиция",
-  poll: "Poll",
+  poll: "Опрос",
-  dice: "Dice",
+  dice: "Кубик",
-  game: "Game",
+  game: "Игра",
-  story: "Story",
+  story: "Сторис",
 };
 
 export function mediaKindLabel(kind: string | null): string | null {
   if (!kind) {
     return null;
   }
-  return MEDIA_KIND_LABELS[kind] ?? "Media";
+  return MEDIA_KIND_LABELS[kind] ?? "Медиа";
 }
 
 const BYTE_UNITS = ["B", "KB", "MB", "GB"];

frontend/src/lib/format/presence.ts

@@ -1,10 +1,22 @@
 import type { PresenceSample } from "$lib/api/types";
 import { formatListDate } from "$lib/format/datetime";
 
+export function isOnline(sample: PresenceSample | null): boolean {
+  if (sample === null || sample.status !== "online") {
+    return false;
+  }
+  if (sample.next_offline_date === null) {
+    return false;
+  }
+  return new Date(sample.next_offline_date).getTime() > Date.now();
+}
+
 export function formatPresence(sample: PresenceSample): string {
   switch (sample.status) {
     case "online":
-      return "online";
+      return isOnline(sample)
+        ? "online"
+        : lastSeen(sample.last_online_date ?? sample.ts);
     case "recently":
       return "last seen recently";
     case "last_week":
@@ -15,7 +27,11 @@ export function formatPresence(sample: PresenceSample): string {
       return "last seen a long time ago";
     default:
       return sample.last_online_date
-        ? `last seen ${formatListDate(sample.last_online_date)}`
+        ? lastSeen(sample.last_online_date)
         : "offline";
   }
 }
+
+function lastSeen(date: string): string {
+  return `last seen ${formatListDate(date)}`;
+}

frontend/src/lib/format/shares.ts

@@ -0,0 +1,55 @@
+import type { FileShare } from "$lib/api/types";
+import { formatFull } from "$lib/format/datetime";
+
+const TEEN_START = 11;
+const TEEN_END = 14;
+const FEW_END = 4;
+
+export function plural(
+  count: number,
+  one: string,
+  few: string,
+  many: string
+): string {
+  const tail = count % 100;
+  if (tail >= TEEN_START && tail <= TEEN_END) {
+    return many;
+  }
+  const last = count % 10;
+  if (last === 1) {
+    return one;
+  }
+  if (last >= 2 && last <= FEW_END) {
+    return few;
+  }
+  return many;
+}
+
+export function formatDownloads(share: FileShare): string {
+  const word = plural(
+    share.download_count,
+    "скачивание",
+    "скачивания",
+    "скачиваний"
+  );
+  if (share.max_downloads === null) {
+    return `${share.download_count} ${word}`;
+  }
+  return `${share.download_count} из ${share.max_downloads}`;
+}
+
+export function formatExpiry(share: FileShare): string {
+  if (share.revoked_at) {
+    return "отозвана";
+  }
+  if (!share.expires_at) {
+    return "бессрочно";
+  }
+  const expires = Date.parse(share.expires_at);
+  const prefix = expires <= Date.now() ? "истекла" : "до";
+  return `${prefix} ${formatFull(share.expires_at)}`;
+}
+
+export function formatShareLimits(share: FileShare): string {
+  return `${formatDownloads(share)} · ${formatExpiry(share)}`;
+}

frontend/src/lib/media/poster.ts

@@ -0,0 +1,20 @@
+export const POSTER_TIME = 0.001;
+
+export function poster(node: HTMLVideoElement) {
+  const seek = () => {
+    if (node.currentTime === 0) {
+      node.currentTime = POSTER_TIME;
+    }
+  };
+
+  node.addEventListener("loadedmetadata", seek);
+  if (node.readyState >= node.HAVE_METADATA) {
+    seek();
+  }
+
+  return {
+    destroy() {
+      node.removeEventListener("loadedmetadata", seek);
+    },
+  };
+}

frontend/src/lib/stores/chat-picker.svelte.ts

@@ -0,0 +1,42 @@
+import { listChats } from "$lib/api/endpoints";
+import type { Chat } from "$lib/api/types";
+
+const DEBOUNCE_MS = 250;
+const LIMIT = 40;
+
+export function createChatPicker() {
+  let results = $state<Chat[]>([]);
+  let timer: ReturnType<typeof setTimeout> | null = null;
+  let seq = 0;
+
+  async function run(query: string, current: number) {
+    try {
+      const found = await listChats({
+        limit: LIMIT,
+        search: query || undefined,
+      });
+      if (current === seq) {
+        results = found;
+      }
+    } catch {
+      if (current === seq) {
+        results = [];
+      }
+    }
+  }
+
+  return {
+    get results(): Chat[] {
+      return results;
+    },
+    search(query: string) {
+      const current = ++seq;
+      if (timer !== null) {
+        clearTimeout(timer);
+      }
+      timer = setTimeout(() => {
+        run(query.trim(), current).catch(() => undefined);
+      }, DEBOUNCE_MS);
+    },
+  };
+}

frontend/src/lib/stores/chats.svelte.ts

@@ -1,104 +1,178 @@
-import { enrichChat, getJob, listChats } from "$lib/api/endpoints";
+import { enrichChat, getChat, getJob, listChats } from "$lib/api/endpoints";
 import type { Chat, LiveEvent } from "$lib/api/types";
+import { folderContains } from "$lib/format/folders";
 import { accounts } from "$lib/stores/accounts.svelte";
 import { events } from "$lib/stores/events.svelte";
-import { peers } from "$lib/stores/peers.svelte";
+import { folders } from "$lib/stores/folders.svelte";
 
 const POLL_INTERVAL = 1500;
 const POLL_MAX = 12;
-const PAGE_SIZE = 200;
+const PAGE_SIZE = 40;
+const ALL = "all";
+const EMPTY: Chat[] = [];
+
+interface Bucket {
+  hasMore: boolean;
+  list: Chat[];
+  loaded: boolean;
+  loading: boolean;
+}
+
+function createBucket(): Bucket {
+  return { list: [], loaded: false, loading: false, hasMore: true };
+}
+
+function bucketKey(folderId: number | null): string {
+  return folderId === null ? ALL : String(folderId);
+}
 
 function createChats() {
-  let list = $state<Chat[]>([]);
+  let buckets = $state<Record<string, Bucket>>({});
-  let loaded = $state(false);
+  let extra = $state<Record<number, Chat>>({});
-  let loading = $state(false);
-  let hasMore = $state(false);
-  let revision = $state(0);
   let account: number | null = null;
-  let filling = false;
   const enriched = new Set<number>();
+  const resolving = new Set<number>();
 
   function syncAccount() {
     if (accounts.selectedId !== account) {
       account = accounts.selectedId;
-      list = [];
+      buckets = {};
-      loaded = false;
+      extra = {};
       enriched.clear();
+      resolving.clear();
     }
   }
 
-  async function load(force: boolean) {
+  function activeKey(): string {
-    syncAccount();
+    return bucketKey(folders.selectedId);
-    if (account === null || (loaded && !force)) {
-      return;
-    }
-    loading = true;
-    try {
-      const page = await listChats({ limit: PAGE_SIZE });
-      list = page;
-      hasMore = page.length === PAGE_SIZE;
-      loaded = true;
-    } finally {
-      loading = false;
-    }
-    loadAll();
   }
 
-  async function loadAll() {
+  function active(): Bucket | undefined {
-    if (filling) {
+    return buckets[activeKey()];
-      return;
   }
-    filling = true;
+
-    try {
+  function folderQuery(key: string): number | undefined {
-      while (hasMore) {
+    return key === ALL ? undefined : Number(key);
-        if (loading) {
+  }
-          await new Promise((resolve) => {
+
-            setTimeout(resolve, 50);
+  async function fetchPage(key: string, offset: number): Promise<Chat[]> {
+    return await listChats({
+      limit: PAGE_SIZE,
+      offset,
+      folder_id: folderQuery(key),
     });
+  }
+
+  async function load(folderId: number | null, force: boolean) {
+    syncAccount();
+    const key = bucketKey(folderId);
+    buckets[key] ??= createBucket();
+    const bucket = buckets[key];
+    if (account === null || bucket.loading || (bucket.loaded && !force)) {
+      return;
+    }
+    bucket.loading = true;
+    try {
+      const page = await fetchPage(key, 0);
+      bucket.list = page;
+      bucket.hasMore = page.length === PAGE_SIZE;
+      bucket.loaded = true;
+    } finally {
+      bucket.loading = false;
+    }
+  }
+
+  async function loadMore(folderId: number | null) {
+    syncAccount();
+    const key = bucketKey(folderId);
+    const bucket = buckets[key];
+    if (
+      account === null ||
+      bucket === undefined ||
+      bucket.loading ||
+      !(bucket.loaded && bucket.hasMore)
+    ) {
+      return;
+    }
+    bucket.loading = true;
+    try {
+      const page = await fetchPage(key, bucket.list.length);
+      const seen = new Set(bucket.list.map((chat) => chat.chat_id));
+      bucket.list = [
+        ...bucket.list,
+        ...page.filter((chat) => !seen.has(chat.chat_id)),
+      ];
+      bucket.hasMore = page.length === PAGE_SIZE;
+    } finally {
+      bucket.loading = false;
+    }
+  }
+
+  function bucketsFor(chat: Chat): Bucket[] {
+    const matching: Bucket[] = [];
+    for (const [key, bucket] of Object.entries(buckets)) {
+      if (key === ALL) {
+        matching.push(bucket);
         continue;
       }
-        const before = list.length;
+      const folder = folders.list.find(
-        await loadMore();
+        (candidate) => candidate.folder_id === Number(key)
-        if (list.length === before) {
+      );
-          break;
+      if (folder && folderContains(folder, chat)) {
+        matching.push(bucket);
       }
     }
-    } finally {
+    return matching;
-      filling = false;
-    }
   }
 
-  async function loadMore() {
+  function known(id: number): boolean {
-    syncAccount();
+    if (extra[id] !== undefined) {
-    if (account === null || loading || !loaded || !hasMore) {
+      return true;
+    }
+    return Object.values(buckets).some((bucket) =>
+      bucket.list.some((chat) => chat.chat_id === id)
+    );
+  }
+
+  function hoist(bucket: Bucket, chat: Chat) {
+    bucket.list = [chat, ...bucket.list.filter((item) => item !== chat)];
+  }
+
+  async function insertUnknown(chatId: number) {
+    const chat = await getChat(chatId);
+    if (chat === null) {
       return;
     }
-    loading = true;
+    for (const bucket of bucketsFor(chat)) {
-    try {
+      if (!bucket.list.some((item) => item.chat_id === chatId)) {
-      const page = await listChats({ limit: PAGE_SIZE, offset: list.length });
+        bucket.list = [chat, ...bucket.list];
-      const seen = new Set(list.map((chat) => chat.chat_id));
+      }
-      list = [...list, ...page.filter((chat) => !seen.has(chat.chat_id))];
-      hasMore = page.length === PAGE_SIZE;
-    } finally {
-      loading = false;
     }
   }
 
   function applyEvent(event: LiveEvent) {
-    if (event.type !== "message" || !loaded) {
+    if (event.type !== "message") {
       return;
     }
     const message = event.message;
-    const existing = list.find((chat) => chat.chat_id === message.chat_id);
+    let known = false;
-    if (!existing) {
+    for (const bucket of Object.values(buckets)) {
-      load(true);
+      const existing = bucket.list.find(
-      return;
+        (chat) => chat.chat_id === message.chat_id
+      );
+      if (existing === undefined) {
+        continue;
       }
+      known = true;
       existing.last_date = message.date;
       existing.last_sender_id = message.sender_id;
       existing.last_text = message.text;
       existing.message_count++;
-    list = [existing, ...list.filter((chat) => chat !== existing)];
+      hoist(bucket, existing);
+    }
+    if (!known && buckets[ALL]?.loaded) {
+      insertUnknown(message.chat_id).catch(() => undefined);
+    }
   }
 
   async function waitForJob(jobId: number) {
@@ -113,38 +187,69 @@ function createChats() {
     }
   }
 
+  function replaceEverywhere(chat: Chat) {
+    for (const bucket of Object.values(buckets)) {
+      const index = bucket.list.findIndex(
+        (item) => item.chat_id === chat.chat_id
+      );
+      if (index !== -1) {
+        bucket.list[index] = chat;
+      }
+    }
+    if (extra[chat.chat_id] !== undefined) {
+      extra[chat.chat_id] = chat;
+    }
+  }
+
   events.subscribe(applyEvent);
   events.onReconnect(() => {
-    if (loaded) {
+    if (active()?.loaded) {
-      load(true);
+      load(folders.selectedId, true);
     }
   });
 
   return {
     get list(): Chat[] {
-      return list;
+      return active()?.list ?? EMPTY;
     },
     get loaded(): boolean {
-      return loaded;
+      return active()?.loaded ?? false;
     },
     get loading(): boolean {
-      return loading;
+      return active()?.loading ?? false;
     },
     get hasMore(): boolean {
-      return hasMore;
+      return active()?.hasMore ?? false;
-    },
-    get revision(): number {
-      return revision;
     },
     loadMore,
     byId(id: number): Chat | undefined {
-      return list.find((chat) => chat.chat_id === id);
+      for (const bucket of Object.values(buckets)) {
+        const found = bucket.list.find((chat) => chat.chat_id === id);
+        if (found !== undefined) {
+          return found;
+        }
+      }
+      return extra[id];
     },
-    load() {
+    ensure(id: number) {
-      return load(false);
+      syncAccount();
+      if (account === null || resolving.has(id) || known(id)) {
+        return;
+      }
+      resolving.add(id);
+      getChat(id)
+        .then((chat) => {
+          if (chat !== null) {
+            extra[id] = chat;
+          }
+        })
+        .catch(() => resolving.delete(id));
     },
-    refresh() {
+    load(folderId: number | null = folders.selectedId) {
-      return load(true);
+      return load(folderId, false);
+    },
+    refresh(folderId: number | null = folders.selectedId) {
+      return load(folderId, true);
     },
     async enrich(chatId: number) {
       syncAccount();
@@ -155,9 +260,10 @@ function createChats() {
       try {
         const { job_id } = await enrichChat(chatId);
         await waitForJob(job_id);
-        peers.reset();
+        const chat = await getChat(chatId);
-        await load(true);
+        if (chat !== null) {
-        revision++;
+          replaceEverywhere(chat);
+        }
       } catch {
         enriched.delete(chatId);
       }

frontend/src/lib/stores/events.svelte.ts

@@ -1,11 +1,15 @@
+import { browser } from "$app/environment";
 import type { LiveEvent } from "$lib/api/types";
 import { auth } from "$lib/stores/auth.svelte";
 
 const BASE = import.meta.env.VITE_API_BASE ?? "/api";
 const RECONNECT_DELAY = 2000;
+const STALL_TIMEOUT = 45_000;
 
 type Listener = (event: LiveEvent) => void;
 
+const STALLED = Symbol("stalled");
+
 function parseFrame(block: string): LiveEvent | null {
   for (const line of block.split("\n")) {
     if (line.startsWith("data:")) {
@@ -25,6 +29,7 @@ function createEvents() {
   let epoch = $state(0);
   let account: number | null = null;
   let controller: AbortController | null = null;
+  let lastFrameAt = 0;
 
   function emit(event: LiveEvent) {
     for (const listener of listeners) {
@@ -49,11 +54,24 @@ function createEvents() {
     return rest;
   }
 
+  function readWithTimeout(
+    reader: ReadableStreamDefaultReader<Uint8Array>
+  ): Promise<ReadableStreamReadResult<Uint8Array> | typeof STALLED> {
+    let timer: ReturnType<typeof setTimeout>;
+    const stall = new Promise<typeof STALLED>((resolve) => {
+      timer = setTimeout(() => resolve(STALLED), STALL_TIMEOUT);
+    });
+    return Promise.race([reader.read(), stall]).finally(() => {
+      clearTimeout(timer);
+    });
+  }
+
   async function consume(response: Response, signal: AbortSignal) {
     if (!response.body) {
       return;
     }
     epoch++;
+    lastFrameAt = Date.now();
     for (const listener of reconnectListeners) {
       listener();
     }
@@ -61,11 +79,16 @@ function createEvents() {
     const decoder = new TextDecoder();
     let buffer = "";
     while (!signal.aborted) {
-      const { value, done } = await reader.read();
+      const result = await readWithTimeout(reader);
-      if (done) {
+      if (result === STALLED) {
+        await reader.cancel().catch(() => undefined);
         return;
       }
-      buffer = drain(buffer + decoder.decode(value, { stream: true }));
+      if (result.done) {
+        return;
+      }
+      lastFrameAt = Date.now();
+      buffer = drain(buffer + decoder.decode(result.value, { stream: true }));
     }
   }
 
@@ -98,6 +121,22 @@ function createEvents() {
     controller = null;
   }
 
+  function start(accountId: number) {
+    close();
+    account = accountId;
+    controller = new AbortController();
+    run(accountId, controller.signal);
+  }
+
+  if (browser) {
+    document.addEventListener("visibilitychange", () => {
+      const stale = Date.now() - lastFrameAt > STALL_TIMEOUT;
+      if (document.visibilityState === "visible" && account !== null && stale) {
+        start(account);
+      }
+    });
+  }
+
   return {
     get epoch(): number {
       return epoch;
@@ -111,16 +150,15 @@ function createEvents() {
       return () => reconnectListeners.delete(listener);
     },
     open(accountId: number | null) {
-      if (accountId === account) {
-        return;
-      }
-      close();
-      account = accountId;
       if (accountId === null || !auth.token) {
+        close();
+        account = null;
         return;
       }
-      controller = new AbortController();
+      if (accountId === account && controller !== null) {
-      run(accountId, controller.signal);
+        return;
+      }
+      start(accountId);
     },
   };
 }

frontend/src/lib/stores/search.svelte.ts

@@ -1,30 +1,22 @@
-import { discoverPeers, searchMessages } from "$lib/api/endpoints";
+import { discoverPeers, listChats, searchMessages } from "$lib/api/endpoints";
-import type { DiscoverItem, SearchHit } from "$lib/api/types";
+import type { Chat, DiscoverItem, SearchHit } from "$lib/api/types";
-import { chats } from "$lib/stores/chats.svelte";
 
 const DEBOUNCE_MS = 250;
 const REMOTE_DEBOUNCE_MS = 700;
 const MIN_LENGTH = 1;
+const CHAT_LIMIT = 30;
 
 function createSearch() {
   let active = $state(false);
   let query = $state("");
   let messageHits = $state<SearchHit[]>([]);
+  let chatHits = $state<Chat[]>([]);
   let peerResults = $state<DiscoverItem[]>([]);
   let loading = $state(false);
   let timers: ReturnType<typeof setTimeout>[] = [];
   let seq = 0;
 
   const trimmed = $derived(query.trim());
-  const chatHits = $derived.by(() => {
-    const needle = trimmed.toLowerCase();
-    if (needle.length < MIN_LENGTH) {
-      return [];
-    }
-    return chats.list.filter((chat) =>
-      (chat.title ?? "").toLowerCase().includes(needle)
-    );
-  });
   const peerHits = $derived.by(() => {
     const shown = new Set(chatHits.map((chat) => chat.chat_id));
     return peerResults.filter((item) => !shown.has(item.chat_id));
@@ -47,6 +39,19 @@ function createSearch() {
     }
   }
 
+  async function runChats(value: string, current: number) {
+    try {
+      const found = await listChats({ limit: CHAT_LIMIT, search: value });
+      if (current === seq) {
+        chatHits = found;
+      }
+    } catch {
+      if (current === seq) {
+        chatHits = [];
+      }
+    }
+  }
+
   async function runPeers(value: string, current: number, remote: boolean) {
     try {
       const items = await discoverPeers(value, remote);
@@ -73,6 +78,7 @@ function createSearch() {
     const current = ++seq;
     if (value.length < MIN_LENGTH) {
       messageHits = [];
+      chatHits = [];
       peerResults = [];
       loading = false;
       return;
@@ -81,6 +87,7 @@ function createSearch() {
     timers.push(
       setTimeout(() => {
         runMessages(value, current).catch(() => undefined);
+        runChats(value, current).catch(() => undefined);
         runPeers(value, current, false).catch(() => undefined);
       }, DEBOUNCE_MS),
       setTimeout(() => {
@@ -122,6 +129,7 @@ function createSearch() {
       active = false;
       query = "";
       messageHits = [];
+      chatHits = [];
       peerResults = [];
       loading = false;
       seq++;

frontend/src/lib/stores/shares.svelte.ts

@@ -0,0 +1,36 @@
+import type { ShareSubject } from "$lib/api/types";
+
+function createShareUi() {
+  let open = $state(false);
+  let subject = $state<ShareSubject | null>(null);
+  let label = $state("файл");
+  let revision = $state(0);
+
+  return {
+    get open() {
+      return open;
+    },
+    set open(value: boolean) {
+      open = value;
+    },
+    get subject() {
+      return subject;
+    },
+    get label() {
+      return label;
+    },
+    get revision() {
+      return revision;
+    },
+    share(next: ShareSubject, name = "файл") {
+      subject = next;
+      label = name;
+      open = true;
+    },
+    touch() {
+      revision += 1;
+    },
+  };
+}
+
+export const shareUi = createShareUi();

frontend/src/lib/stores/ui.svelte.ts

@@ -12,7 +12,8 @@ export type RightPanel =
   | "stories-all"
   | "policy"
   | "watches"
-  | "alerts";
+  | "alerts"
+  | "shares";
 
 export type LeftView = "main" | "settings";
 

frontend/src/lib/styles/global.scss

@@ -153,6 +153,14 @@ html.theme-transition * {
   animation: ripple-animation 700ms;
 }
 
+@media (pointer: coarse) {
+  [data-context-menu-trigger] {
+    -webkit-touch-callout: none;
+    -webkit-user-select: none;
+    user-select: none;
+  }
+}
+
 .bg-menu-content {
   z-index: var(--z-portal-menu);
   min-width: 12rem;

frontend/src/lib/styles/variables.scss

@@ -140,7 +140,7 @@
 
     --color-links: #{$color-links};
 
-    --color-own-links: #{$color-white};
+    --color-own-links: #{$color-links};
 
     --color-placeholders: #{$color-placeholders};
 

frontend/src/lib/viewport.ts

@@ -0,0 +1,7 @@
+import { browser } from "$app/environment";
+
+const MOBILE_QUERY = "(max-width: 600px)";
+
+export function isMobile(): boolean {
+  return browser && window.matchMedia(MOBILE_QUERY).matches;
+}

frontend/src/routes/app/+layout.svelte

@@ -8,11 +8,14 @@
   import SearchInput from "$lib/components/search/SearchInput.svelte";
   import SearchResults from "$lib/components/search/SearchResults.svelte";
   import Settings from "$lib/components/settings/Settings.svelte";
+  import ShareDialog from "$lib/components/shares/ShareDialog.svelte";
   import Button from "$lib/components/ui/Button.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
   import { accounts } from "$lib/stores/accounts.svelte";
+  import { auth } from "$lib/stores/auth.svelte";
   import { events } from "$lib/stores/events.svelte";
   import { search } from "$lib/stores/search.svelte";
+  import { shareUi } from "$lib/stores/shares.svelte";
   import { toasts } from "$lib/stores/toasts.svelte";
   import { ui } from "$lib/stores/ui.svelte";
 
@@ -27,7 +30,7 @@
   });
 
   $effect(() => {
-    events.open(accounts.selectedId);
+    events.open(auth.token === null ? null : accounts.selectedId);
   });
 </script>
 
@@ -97,6 +100,13 @@
   {/if}
 </div>
 
+<ShareDialog
+  bind:open={shareUi.open}
+  subject={shareUi.subject}
+  label={shareUi.label}
+  onchange={() => shareUi.touch()}
+/>
+
 <style lang="scss">
   #Main {
     display: grid;

frontend/src/routes/app/[chatId]/+page.svelte

@@ -11,6 +11,7 @@
     if (accounts.selectedId === null) {
       return;
     }
+    chats.ensure(chatId);
     chats.enrich(chatId);
   });
 </script>

frontend/vite.config.ts

@@ -21,6 +21,7 @@ export default defineConfig({
     proxy: {
       "/api": { target: proxyTarget, changeOrigin: true },
       "/mcp": { target: proxyTarget, changeOrigin: true },
+      "/f": { target: proxyTarget, changeOrigin: true },
     },
   },
 });