refactor(webapp): remove emoji web app logo option

Drop the emoji-logo feature (and its font picker) from the Web App. Only
an uploaded/linked image logo and favicon remain; when no logo is set,
the default project logo is shown. Existing emoji-logo overrides are
ignored — the keys are gone from the manifest, so the override service
skips them and the app falls back to the default logo.

- Remove WEBAPP_LOGO_USE_EMOJI / WEBAPP_LOGO_EMOJI / WEBAPP_LOGO_EMOJI_FONT
  settings, validators, manifest entries and override/runtime plumbing.
- Strip the animated-emoji fetch/cache subsystem, the /webapp-emoji route
  and emoji branches from logo/favicon resolution; leftover emoji cache
  files are now purged on appearance save.
- Simplify BrandMark to an image-only component and drop the emoji UI
  from the admin Appearance section.
- Regenerate the demo settings manifest and clean docs, locales, nginx
  and demo data of emoji-logo references.

backend/bot/app/web/admin_api_impl/themes.py

@@ -136,10 +136,6 @@ def _favicon_digest(url: str) -> Optional[str]:
     return match.group(1) if match else None
 
 
-def _emoji_to_codepoints(value: str) -> str:
-    return "_".join(f"{ord(char):x}" for char in str(value or "").strip())
-
-
 def prune_unused_appearance_assets(settings: Settings) -> None:
     keep_logos = {
         filename
@@ -156,15 +152,6 @@ def prune_unused_appearance_assets(settings: Settings) -> None:
         ]
         if digest
     }
-    keep_emoji_prefixes = set()
-    if (
-        getattr(settings, "WEBAPP_LOGO_USE_EMOJI", False)
-        and str(getattr(settings, "WEBAPP_LOGO_EMOJI_FONT", "") or "").strip()
-        == "noto-color-animated"
-    ):
-        codepoints = _emoji_to_codepoints(getattr(settings, "WEBAPP_LOGO_EMOJI", ""))
-        if codepoints:
-            keep_emoji_prefixes.add(f"{codepoints}.512.")
 
     for path in WEBAPP_UPLOADED_LOGO_DIR.glob("logo-*"):
         if path.is_file() and path.name not in keep_logos:
@@ -184,10 +171,9 @@ def prune_unused_appearance_assets(settings: Settings) -> None:
             except OSError:
                 logger.warning("Failed to remove unused webapp favicon set %s", path, exc_info=True)
 
+    # Emoji logos were removed; purge any leftover animated-emoji cache files.
     for path in WEBAPP_EMOJI_CACHE_DIR.glob("*.512.*"):
-        if path.is_file() and not any(
-            path.name.startswith(prefix) for prefix in keep_emoji_prefixes
-        ):
+        if path.is_file():
             try:
                 path.unlink()
             except OSError:
@@ -389,7 +375,6 @@ async def admin_appearance_logo_upload_route(request: web.Request) -> web.Respon
         request,
         {
             "WEBAPP_LOGO_URL": logo_url,
-            "WEBAPP_LOGO_USE_EMOJI": False,
             **(
                 {"WEBAPP_LOGO_FAVICON_URL": favicon_payload["favicon_url"]}
                 if favicon_payload.get("favicon_url")

backend/bot/app/web/admin_api_impl/webapp_runtime.py

@@ -13,9 +13,6 @@ WEBAPP_APPEARANCE_SETTING_KEYS = frozenset(
     {
         "WEBAPP_TITLE",
         "WEBAPP_LOGO_URL",
-        "WEBAPP_LOGO_USE_EMOJI",
-        "WEBAPP_LOGO_EMOJI",
-        "WEBAPP_LOGO_EMOJI_FONT",
         "WEBAPP_FAVICON_URL",
         "WEBAPP_FAVICON_USE_CUSTOM",
         "WEBAPP_LOGO_FAVICON_URL",

backend/bot/app/web/admin_settings_manifest.py

@@ -181,27 +181,7 @@ SETTINGS_MANIFEST: List[SettingField] = [
     SettingField(
         "WEBAPP_PRIMARY_COLOR", "color", "appearance", "Основной цвет", placeholder="#00fe7a"
     ),
-    SettingField("WEBAPP_LOGO_USE_EMOJI", "bool", "appearance", "Использовать эмоджи-логотип"),
     SettingField("WEBAPP_LOGO_URL", "url", "appearance", "URL логотипа"),
-    SettingField("WEBAPP_LOGO_EMOJI", "string", "appearance", "Эмоджи-логотип", placeholder="🫥"),
-    SettingField(
-        "WEBAPP_LOGO_EMOJI_FONT",
-        "string",
-        "appearance",
-        "Шрифт эмоджи-логотипа",
-        "Выберите шрифт для отображения эмодзи-логотипа",
-        choices=(
-            ("system", "Системный (по умолчанию)"),
-            ("noto-color", "Noto Color Emoji"),
-            ("noto-color-animated", "Noto Color Emoji Animated"),
-            ("noto-emoji", "Noto Emoji"),
-            ("twemoji", "Twitter Emoji"),
-            ("openmoji", "OpenMoji"),
-            ("apple", "Apple Color Emoji (local)"),
-            ("segoe", "Segoe UI Emoji (local)"),
-            ("noto-local", "Noto Emoji (local)"),
-        ),
-    ),
     SettingField(
         "WEBAPP_FAVICON_USE_CUSTOM",
         "bool",

backend/bot/app/web/webapp/_runtime.py

@@ -82,7 +82,6 @@ WEBAPP_DEFAULT_LOGO_PATH = "/webapp-default-logo.webp"
 WEBAPP_DEFAULT_FAVICON_DIGEST = "19b2a242e5b7bc2d"
 WEBAPP_DEFAULT_FAVICON_DIR = WEBAPP_DEFAULT_BRAND_DIR / "favicons" / WEBAPP_DEFAULT_FAVICON_DIGEST
 WEBAPP_DEFAULT_FAVICON_URL = f"{WEBAPP_FAVICON_PATH}/{WEBAPP_DEFAULT_FAVICON_DIGEST}/icon-180.png"
-WEBAPP_EMOJI_CACHE_DIR = APP_ROOT / "data" / "webapp-emoji"
 WEBAPP_CONFIG_PLACEHOLDER = "<!-- WEBAPP_CONFIG_SCRIPT -->"
 WEBAPP_I18N_PLACEHOLDER = "<!-- WEBAPP_I18N_SCRIPT -->"
 WEBAPP_JS_PLACEHOLDER = "<!-- WEBAPP_JS_SCRIPT -->"
@@ -92,7 +91,6 @@ DEV_MOCK_END_MARKER = "<!-- WEBAPP_DEV_MOCK_END -->"
 WEBAPP_RATE_LIMIT_WINDOW_SECONDS = 60
 WEBAPP_RATE_LIMIT_MAX_REQUESTS = 30
 WEBAPP_LOGO_MAX_BYTES = 2 * 1024 * 1024
-WEBAPP_EMOJI_MAX_BYTES = 4 * 1024 * 1024
 WEBAPP_THEME_CSS_MAX_BYTES = 512 * 1024
 WEBAPP_THEME_ASSET_MAX_BYTES = 1024 * 1024
 WEBAPP_THEME_ASSET_CONTENT_TYPES = {

backend/bot/app/web/webapp/application.py

@@ -33,7 +33,6 @@ def create_subscription_webapp_application(
     async def _startup(app_obj: web.Application) -> None:
         await _ensure_shared_http_session()
         await _warm_webapp_logo_cache(app_obj)
-        await _warm_webapp_animated_emoji_cache(app_obj)
         await warm_subscription_guides_config(app_obj)
 
     async def _shutdown(app_obj: web.Application) -> None:

backend/bot/app/web/webapp/assets.py

@@ -206,9 +206,6 @@ async def theme_asset_route(request: web.Request) -> web.Response:
 
 
 def _resolve_webapp_logo_url(settings: Settings) -> str:
-    if getattr(settings, "WEBAPP_LOGO_USE_EMOJI", False):
-        return ""
-
     raw_logo_url = (getattr(settings, "WEBAPP_LOGO_URL", None) or "").strip()
     if not raw_logo_url:
         return WEBAPP_DEFAULT_LOGO_PATH
@@ -303,29 +300,8 @@ def _uploaded_webapp_logo_response(filename: str) -> web.Response:
     return response
 
 
-def _emoji_to_codepoints(value: str) -> str:
-    return "_".join(f"{ord(char):x}" for char in str(value or "").strip())
-
-
-def _webapp_emoji_disk_path(codepoints: str, ext: str) -> Path:
-    return WEBAPP_EMOJI_CACHE_DIR / f"{codepoints}.512.{ext}"
-
-
-def _webapp_animated_emoji_source_url(codepoints: str, ext: str) -> str:
-    return f"https://fonts.gstatic.com/s/e/notoemoji/latest/{codepoints}/512.{ext}"
-
-
-def _webapp_animated_emoji_asset_path(emoji: str, ext: str = "gif") -> str:
-    codepoints = _emoji_to_codepoints(emoji)
-    if not codepoints or ext not in {"gif", "webp"}:
-        return ""
-    return f"/webapp-emoji/{codepoints}/512.{ext}"
-
-
 async def webapp_logo_route(request: web.Request) -> web.Response:
     settings: Settings = request.app["settings"]
-    if getattr(settings, "WEBAPP_LOGO_USE_EMOJI", False):
-        raise web.HTTPNotFound(text="webapp_logo_disabled")
     raw_logo_url = (settings.WEBAPP_LOGO_URL or "").strip()
     if not raw_logo_url:
         raise web.HTTPNotFound(text="webapp_logo_not_configured")
@@ -521,37 +497,8 @@ def _webapp_default_brand_file_response(path: Path, content_type: str) -> web.Re
     return web.Response(body=body, content_type=content_type)
 
 
-async def webapp_animated_emoji_route(request: web.Request) -> web.Response:
-    codepoints = str(request.match_info.get("codepoints") or "").strip().lower()
-    ext = str(request.match_info.get("ext") or "").strip().lower()
-    if not re.fullmatch(r"[0-9a-f]+(?:_[0-9a-f]+)*", codepoints) or ext not in {"gif", "webp"}:
-        raise web.HTTPNotFound(text="webapp_emoji_not_found")
-
-    emoji_cache_key = f"{codepoints}:{ext}"
-    emoji_caches: Dict[str, Tuple[bytes, str]] = request.app.setdefault("webapp_emoji_cache", {})
-    emoji_cache = emoji_caches.get(emoji_cache_key)
-    if emoji_cache is None:
-        cache_lock: asyncio.Lock = request.app.setdefault("webapp_emoji_cache_lock", asyncio.Lock())
-        async with cache_lock:
-            emoji_cache = emoji_caches.get(emoji_cache_key)
-            if emoji_cache is None:
-                emoji_cache = await _load_or_fetch_webapp_animated_emoji(codepoints, ext)
-                if emoji_cache:
-                    emoji_caches[emoji_cache_key] = emoji_cache
-
-    if not emoji_cache:
-        raise web.HTTPNotFound(text="webapp_emoji_unavailable")
-
-    body, content_type = emoji_cache
-    response = web.Response(body=body, content_type=content_type)
-    response.headers["Cache-Control"] = "public, max-age=31536000, immutable"
-    return response
-
-
 async def _warm_webapp_logo_cache(app: web.Application) -> None:
     settings: Settings = app["settings"]
-    if getattr(settings, "WEBAPP_LOGO_USE_EMOJI", False):
-        return
     raw_logo_url = (settings.WEBAPP_LOGO_URL or "").strip()
     if not raw_logo_url or not _is_proxyable_webapp_logo_url(raw_logo_url):
         return
@@ -573,111 +520,6 @@ async def _warm_webapp_logo_cache(app: web.Application) -> None:
         )
 
 
-async def _warm_webapp_animated_emoji_cache(app: web.Application) -> None:
-    settings: Settings = app["settings"]
-    if not getattr(settings, "WEBAPP_LOGO_USE_EMOJI", False):
-        return
-    if str(settings.WEBAPP_LOGO_EMOJI_FONT or "").strip() != "noto-color-animated":
-        return
-
-    codepoints = _emoji_to_codepoints(settings.WEBAPP_LOGO_EMOJI)
-    if not codepoints:
-        return
-
-    app.setdefault("webapp_emoji_cache", {})
-    app.setdefault("webapp_emoji_cache_lock", asyncio.Lock())
-    emoji_caches: Dict[str, Tuple[bytes, str]] = app["webapp_emoji_cache"]
-
-    for ext in ("gif", "webp"):
-        emoji_cache_key = f"{codepoints}:{ext}"
-        if emoji_cache_key in emoji_caches:
-            continue
-        loaded_emoji = await _load_or_fetch_webapp_animated_emoji(codepoints, ext)
-        if loaded_emoji:
-            emoji_caches[emoji_cache_key] = loaded_emoji
-            if ext == "gif":
-                return
-
-
-async def _load_or_fetch_webapp_animated_emoji(
-    codepoints: str, ext: str
-) -> Optional[Tuple[bytes, str]]:
-    disk_emoji = await asyncio.to_thread(_read_webapp_animated_emoji_from_disk, codepoints, ext)
-    if disk_emoji:
-        return disk_emoji
-
-    fetched_emoji = await _fetch_webapp_animated_emoji(codepoints, ext)
-    if fetched_emoji:
-        await asyncio.to_thread(
-            _write_webapp_animated_emoji_to_disk, codepoints, ext, fetched_emoji
-        )
-    return fetched_emoji
-
-
-def _read_webapp_animated_emoji_from_disk(codepoints: str, ext: str) -> Optional[Tuple[bytes, str]]:
-    path = _webapp_emoji_disk_path(codepoints, ext)
-    try:
-        body = path.read_bytes()
-    except OSError:
-        return None
-
-    if not body or len(body) > WEBAPP_EMOJI_MAX_BYTES:
-        return None
-    return body, "image/gif" if ext == "gif" else "image/webp"
-
-
-def _write_webapp_animated_emoji_to_disk(
-    codepoints: str, ext: str, emoji: Tuple[bytes, str]
-) -> None:
-    body, _content_type = emoji
-    if not body or len(body) > WEBAPP_EMOJI_MAX_BYTES:
-        return
-
-    path = _webapp_emoji_disk_path(codepoints, ext)
-    try:
-        WEBAPP_EMOJI_CACHE_DIR.mkdir(parents=True, exist_ok=True)
-        path.write_bytes(body)
-    except OSError as exc:
-        logger.warning("Failed to write WEBAPP animated emoji cache: %s", exc)
-
-
-async def _fetch_webapp_animated_emoji(codepoints: str, ext: str) -> Optional[Tuple[bytes, str]]:
-    try:
-        session = await _get_shared_http_session()
-        timeout = ClientTimeout(total=4)
-        source_url = _webapp_animated_emoji_source_url(codepoints, ext)
-        async with session.get(
-            source_url,
-            allow_redirects=False,
-            headers={"Accept": "image/gif,image/webp,image/*,*/*;q=0.8"},
-            timeout=timeout,
-        ) as response:
-            if response.status != 200:
-                return None
-
-            content_type = (
-                (response.headers.get("Content-Type") or "").split(";", 1)[0].strip().lower()
-            )
-            expected_content_type = "image/gif" if ext == "gif" else "image/webp"
-            if content_type and content_type != expected_content_type:
-                return None
-
-            body = bytearray()
-            async for chunk in response.content.iter_chunked(64 * 1024):
-                body.extend(chunk)
-                if len(body) > WEBAPP_EMOJI_MAX_BYTES:
-                    logger.warning("WEBAPP animated emoji exceeded the 4 MiB limit.")
-                    return None
-
-            if not body:
-                return None
-
-            return bytes(body), expected_content_type
-    except Exception as exc:
-        logger.warning("Failed to fetch WEBAPP animated emoji: %s", exc)
-        return None
-
-
 async def _load_or_fetch_webapp_logo(logo_url: str) -> Optional[Tuple[bytes, str]]:
     disk_logo = await asyncio.to_thread(_read_webapp_logo_from_disk, logo_url)
     if disk_logo:
@@ -1144,9 +986,6 @@ def _build_webapp_bootstrap_payload(request: web.Request) -> Dict[str, Any]:
             "themesDir": settings.WEBAPP_THEMES_DIR,
             "themePreviewKey": preview_key,
             "logoUrl": cached["logo_url"],
-            "logoUseEmoji": bool(settings.WEBAPP_LOGO_USE_EMOJI),
-            "logoEmoji": settings.WEBAPP_LOGO_EMOJI,
-            "logoEmojiFont": settings.WEBAPP_LOGO_EMOJI_FONT,
             "faviconUrl": cached["favicon_url"],
             "faviconUseCustom": bool(settings.WEBAPP_FAVICON_USE_CUSTOM),
             "apiBase": "/api",
@@ -1308,12 +1147,6 @@ async def index_route(request: web.Request) -> web.Response:
         f'<script src="/{_resolve_webapp_js_asset_name()}" defer></script>',
     )
     brand_asset_url = cached["logo_url"]
-    if (
-        not brand_asset_url
-        and settings.WEBAPP_LOGO_USE_EMOJI
-        and settings.WEBAPP_LOGO_EMOJI_FONT == "noto-color-animated"
-    ):
-        brand_asset_url = _webapp_animated_emoji_asset_path(settings.WEBAPP_LOGO_EMOJI)
     if brand_asset_url:
         html = html.replace(
             "</head>",

backend/bot/app/web/webapp/routes.py

@@ -46,10 +46,6 @@ def setup_subscription_webapp_routes(app: web.Application) -> None:
         rf"{WEBAPP_FAVICON_PATH}/{{digest:[0-9a-f]{{16}}}}/{{filename:[A-Za-z0-9_.-]+}}",
         webapp_favicon_route,
     )
-    app.router.add_get(
-        r"/webapp-emoji/{codepoints:[0-9a-f_]+}/512.{ext:gif|webp}",
-        webapp_animated_emoji_route,
-    )
     app.router.add_get("/subscription_webapp.{asset_hash:[0-9a-f]{8}}.css", css_asset_route)
     app.router.add_get("/subscription_webapp.css", css_asset_route)
     app.router.add_get(

backend/bot/services/email_templates.py

@@ -48,8 +48,6 @@ def _safe_color(value: Optional[str]) -> str:
 def _public_logo_url(settings: Settings) -> Optional[str]:
     """Email recipients can't reach the in-app /webapp-logo proxy, so only a
     stored public https URL can be used directly. Anything else is dropped."""
-    if getattr(settings, "WEBAPP_LOGO_USE_EMOJI", False):
-        return None
     raw = (settings.WEBAPP_LOGO_URL or "").strip()
     if not raw:
         return None

backend/bot/services/settings_override_service.py

@@ -28,10 +28,7 @@ from db.dal import app_settings_dal
 logger = logging.getLogger(__name__)
 
 APPEARANCE_OVERRIDE_KEYS = {
-    "WEBAPP_LOGO_USE_EMOJI",
     "WEBAPP_LOGO_URL",
-    "WEBAPP_LOGO_EMOJI",
-    "WEBAPP_LOGO_EMOJI_FONT",
     "WEBAPP_FAVICON_USE_CUSTOM",
     "WEBAPP_FAVICON_URL",
     "WEBAPP_LOGO_FAVICON_URL",
@@ -167,12 +164,6 @@ def _appearance_snapshot(settings: Settings) -> Dict[str, Any]:
         snapshot["WEBAPP_FAVICON_URL"] = favicon_url
     if getattr(settings, "WEBAPP_FAVICON_USE_CUSTOM", False):
         snapshot["WEBAPP_FAVICON_USE_CUSTOM"] = True
-    if getattr(settings, "WEBAPP_LOGO_USE_EMOJI", False):
-        snapshot["WEBAPP_LOGO_USE_EMOJI"] = True
-        snapshot["WEBAPP_LOGO_EMOJI"] = getattr(settings, "WEBAPP_LOGO_EMOJI", "")
-        emoji_font = getattr(settings, "WEBAPP_LOGO_EMOJI_FONT", "")
-        if emoji_font and emoji_font != "system":
-            snapshot["WEBAPP_LOGO_EMOJI_FONT"] = emoji_font
     primary_color = getattr(settings, "WEBAPP_PRIMARY_COLOR", None)
     if primary_color and primary_color != "#00fe7a":
         snapshot["WEBAPP_PRIMARY_COLOR"] = primary_color

backend/config/settings.py

@@ -59,9 +59,6 @@ class WebAppSettings(BaseModel):
     title: str
     primary_color: str
     logo_url: Optional[str]
-    logo_use_emoji: bool
-    logo_emoji: str
-    logo_emoji_font: str
     favicon_use_custom: bool
     favicon_url: Optional[str]
     logo_favicon_url: Optional[str]
@@ -395,15 +392,6 @@ class Settings(BaseSettings):
         ),
     )
     WEBAPP_LOGO_URL: Optional[str] = Field(default=None)
-    WEBAPP_LOGO_USE_EMOJI: bool = Field(default=False)
-    WEBAPP_LOGO_EMOJI: str = Field(default="🫥")
-    WEBAPP_LOGO_EMOJI_FONT: str = Field(
-        default="system",
-        description=(
-            "Emoji font for logo fallback: system, noto-color, noto-color-animated, "
-            "noto-emoji, twemoji, openmoji, apple, segoe, noto-local"
-        ),
-    )
     WEBAPP_FAVICON_USE_CUSTOM: bool = Field(default=False)
     WEBAPP_FAVICON_URL: Optional[str] = Field(default=None)
     WEBAPP_LOGO_FAVICON_URL: Optional[str] = Field(default=None)
@@ -566,9 +554,6 @@ class Settings(BaseSettings):
             title=self.WEBAPP_TITLE,
             primary_color=self.WEBAPP_PRIMARY_COLOR,
             logo_url=self.WEBAPP_LOGO_URL,
-            logo_use_emoji=self.WEBAPP_LOGO_USE_EMOJI,
-            logo_emoji=self.WEBAPP_LOGO_EMOJI,
-            logo_emoji_font=self.WEBAPP_LOGO_EMOJI_FONT,
             favicon_use_custom=self.WEBAPP_FAVICON_USE_CUSTOM,
             favicon_url=self.WEBAPP_FAVICON_URL,
             logo_favicon_url=self.WEBAPP_LOGO_FAVICON_URL,
@@ -810,21 +795,6 @@ class Settings(BaseSettings):
     def ignore_deprecated_webapp_logo_url_env(cls, _value):
         return None
 
-    @field_validator("WEBAPP_LOGO_USE_EMOJI", mode="before")
-    @classmethod
-    def ignore_deprecated_webapp_logo_use_emoji_env(cls, _value):
-        return False
-
-    @field_validator("WEBAPP_LOGO_EMOJI", mode="before")
-    @classmethod
-    def ignore_deprecated_webapp_logo_emoji_env(cls, _value):
-        return "🫥"
-
-    @field_validator("WEBAPP_LOGO_EMOJI_FONT", mode="before")
-    @classmethod
-    def ignore_deprecated_webapp_logo_emoji_font_env(cls, _value):
-        return "system"
-
     @field_validator("WEBAPP_FAVICON_USE_CUSTOM", mode="before")
     @classmethod
     def ignore_deprecated_webapp_favicon_use_custom_env(cls, _value):