From e4d421c782a181f421e2987f75b4610845e3ef55 Mon Sep 17 00:00:00 2001 From: tanaka takashi Date: Wed, 24 Jun 2026 22:47:13 +0900 Subject: Harden web UI security --- src/ollama_web/app.py | 26 +- src/ollama_web/auth.py | 142 +++ src/ollama_web/config.py | 25 +- src/ollama_web/llm.py | 17 +- src/ollama_web/main.py | 5 +- src/ollama_web/middleware.py | 36 + src/ollama_web/routes/auth.py | 32 + src/ollama_web/routes/chat.py | 57 +- src/ollama_web/routes/pages.py | 10 + src/ollama_web/routes/sessions.py | 51 +- src/ollama_web/sessions.py | 51 +- src/ollama_web/static/app.js | 51 +- src/ollama_web/static/login.js | 21 + src/ollama_web/static/style.css | 39 + src/ollama_web/static/tools.js | 8 + .../static/vendor/fonts/KaTeX_AMS-Regular.ttf | Bin 0 -> 63632 bytes .../static/vendor/fonts/KaTeX_AMS-Regular.woff | Bin 0 -> 33516 bytes .../static/vendor/fonts/KaTeX_AMS-Regular.woff2 | Bin 0 -> 28076 bytes .../static/vendor/fonts/KaTeX_Caligraphic-Bold.ttf | Bin 0 -> 12368 bytes .../vendor/fonts/KaTeX_Caligraphic-Bold.woff | Bin 0 -> 7716 bytes .../vendor/fonts/KaTeX_Caligraphic-Bold.woff2 | Bin 0 -> 6912 bytes .../vendor/fonts/KaTeX_Caligraphic-Regular.ttf | Bin 0 -> 12344 bytes .../vendor/fonts/KaTeX_Caligraphic-Regular.woff | Bin 0 -> 7656 bytes .../vendor/fonts/KaTeX_Caligraphic-Regular.woff2 | Bin 0 -> 6908 bytes .../static/vendor/fonts/KaTeX_Fraktur-Bold.ttf | Bin 0 -> 19584 bytes .../static/vendor/fonts/KaTeX_Fraktur-Bold.woff | Bin 0 -> 13296 bytes .../static/vendor/fonts/KaTeX_Fraktur-Bold.woff2 | Bin 0 -> 11348 bytes .../static/vendor/fonts/KaTeX_Fraktur-Regular.ttf | Bin 0 -> 19572 bytes .../static/vendor/fonts/KaTeX_Fraktur-Regular.woff | Bin 0 -> 13208 bytes .../vendor/fonts/KaTeX_Fraktur-Regular.woff2 | Bin 0 -> 11316 bytes .../static/vendor/fonts/KaTeX_Main-Bold.ttf | Bin 0 -> 51336 bytes .../static/vendor/fonts/KaTeX_Main-Bold.woff | Bin 0 -> 29912 bytes .../static/vendor/fonts/KaTeX_Main-Bold.woff2 | Bin 0 -> 25324 bytes 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.../static/vendor/fonts/KaTeX_Size1-Regular.woff | Bin 0 -> 6496 bytes .../static/vendor/fonts/KaTeX_Size1-Regular.woff2 | Bin 0 -> 5468 bytes .../static/vendor/fonts/KaTeX_Size2-Regular.ttf | Bin 0 -> 11508 bytes .../static/vendor/fonts/KaTeX_Size2-Regular.woff | Bin 0 -> 6188 bytes .../static/vendor/fonts/KaTeX_Size2-Regular.woff2 | Bin 0 -> 5208 bytes .../static/vendor/fonts/KaTeX_Size3-Regular.ttf | Bin 0 -> 7588 bytes .../static/vendor/fonts/KaTeX_Size3-Regular.woff | Bin 0 -> 4420 bytes .../static/vendor/fonts/KaTeX_Size3-Regular.woff2 | Bin 0 -> 3624 bytes .../static/vendor/fonts/KaTeX_Size4-Regular.ttf | Bin 0 -> 10364 bytes .../static/vendor/fonts/KaTeX_Size4-Regular.woff | Bin 0 -> 5980 bytes .../static/vendor/fonts/KaTeX_Size4-Regular.woff2 | Bin 0 -> 4928 bytes .../vendor/fonts/KaTeX_Typewriter-Regular.ttf | Bin 0 -> 27556 bytes .../vendor/fonts/KaTeX_Typewriter-Regular.woff | Bin 0 -> 16028 bytes .../vendor/fonts/KaTeX_Typewriter-Regular.woff2 | Bin 0 -> 13568 bytes src/ollama_web/static/vendor/github-dark.min.css | 10 + src/ollama_web/static/vendor/highlight.min.js | 1213 ++++++++++++++++++++ src/ollama_web/static/vendor/katex.min.css | 1 + src/ollama_web/static/vendor/katex.min.js | 1 + src/ollama_web/static/vendor/marked.min.js | 6 + src/ollama_web/static/vendor/purify.min.js | 3 + src/ollama_web/templates/index.html | 23 +- src/ollama_web/templates/login.html | 21 + src/ollama_web/tools/__init__.py | 5 +- src/ollama_web/tools/fetch.py | 42 +- src/ollama_web/tools/helper/__init__.py | 13 + src/ollama_web/tools/helper/image.py | 65 ++ src/ollama_web/tools/helper/pdf.py | 39 + src/ollama_web/tools/helper/safe_http.py | 104 ++ src/ollama_web/tools/image.py | 72 -- src/ollama_web/tools/pdf.py | 66 +- src/ollama_web/tools/scrape.py | 22 +- 92 files changed, 2048 insertions(+), 229 deletions(-) create mode 100644 src/ollama_web/auth.py create mode 100644 src/ollama_web/middleware.py create mode 100644 src/ollama_web/routes/auth.py create mode 100644 src/ollama_web/static/login.js create mode 100644 src/ollama_web/static/tools.js create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_AMS-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_AMS-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_AMS-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Caligraphic-Bold.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Caligraphic-Bold.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Caligraphic-Bold.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Caligraphic-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Caligraphic-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Caligraphic-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Fraktur-Bold.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Fraktur-Bold.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Fraktur-Bold.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Fraktur-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Fraktur-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Fraktur-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-Bold.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-Bold.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-Bold.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-BoldItalic.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-BoldItalic.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-BoldItalic.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-Italic.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-Italic.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-Italic.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Main-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Math-BoldItalic.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Math-BoldItalic.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Math-BoldItalic.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Math-Italic.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Math-Italic.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Math-Italic.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_SansSerif-Bold.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_SansSerif-Bold.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_SansSerif-Bold.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_SansSerif-Italic.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_SansSerif-Italic.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_SansSerif-Italic.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_SansSerif-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_SansSerif-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_SansSerif-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Script-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Script-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Script-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size1-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size1-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size1-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size2-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size2-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size2-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size3-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size3-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size3-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size4-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size4-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Size4-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Typewriter-Regular.ttf create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Typewriter-Regular.woff create mode 100644 src/ollama_web/static/vendor/fonts/KaTeX_Typewriter-Regular.woff2 create mode 100644 src/ollama_web/static/vendor/github-dark.min.css create mode 100644 src/ollama_web/static/vendor/highlight.min.js create mode 100644 src/ollama_web/static/vendor/katex.min.css create mode 100644 src/ollama_web/static/vendor/katex.min.js create mode 100644 src/ollama_web/static/vendor/marked.min.js create mode 100644 src/ollama_web/static/vendor/purify.min.js create mode 100644 src/ollama_web/templates/login.html create mode 100644 src/ollama_web/tools/helper/__init__.py create mode 100644 src/ollama_web/tools/helper/image.py create mode 100644 src/ollama_web/tools/helper/pdf.py create mode 100644 src/ollama_web/tools/helper/safe_http.py delete mode 100644 src/ollama_web/tools/image.py (limited to 'src') diff --git a/src/ollama_web/app.py b/src/ollama_web/app.py index 7c002b4..cdec188 100644 --- a/src/ollama_web/app.py +++ b/src/ollama_web/app.py @@ -10,7 +10,10 @@ from starlette.middleware.cors import CORSMiddleware from starlette.routing import Mount, Route from starlette.staticfiles import StaticFiles +from .auth import AuthMiddleware from .config import settings +from .middleware import SecurityHeadersMiddleware +from .routes import auth as auth_route from .routes import chat as chat_route from .routes import models as models_route from .routes import pages as pages_route @@ -23,6 +26,10 @@ _STATIC_DIR = Path(__file__).resolve().parent / "static" def create_app() -> Starlette: """Build and return the configured Starlette application.""" routes = [ + Route("/login", pages_route.login, name="login_page"), + Route("/api/auth/login", auth_route.login, methods=["POST"], name="auth_login"), + Route("/api/auth/logout", auth_route.logout, methods=["POST"], name="auth_logout"), + Route("/api/auth/status", auth_route.status, methods=["GET"], name="auth_status"), Route("/", pages_route.index, name="index"), Route("/api/chat", chat_route.chat, methods=["POST"], name="chat"), Route("/api/models", models_route.get_models, methods=["GET"], name="models"), @@ -61,14 +68,17 @@ def create_app() -> Starlette: Mount("/static", app=StaticFiles(directory=str(_STATIC_DIR)), name="static"), ] - middleware = [ - Middleware( - CORSMiddleware, - allow_origins=["*"], - allow_methods=["*"], - allow_headers=["*"], + middleware = [Middleware(SecurityHeadersMiddleware), Middleware(AuthMiddleware)] + if settings.allowed_origins: + middleware.append( + Middleware( + CORSMiddleware, + allow_origins=settings.allowed_origins, + allow_methods=["GET", "POST", "DELETE"], + allow_headers=["Content-Type", "X-CSRF-Token"], + allow_credentials=True, + ) ) - ] app = Starlette(routes=routes, middleware=middleware) app.state.settings = settings @@ -77,4 +87,4 @@ def create_app() -> Starlette: return app -app = create_app() \ No newline at end of file +app = create_app() diff --git a/src/ollama_web/auth.py b/src/ollama_web/auth.py new file mode 100644 index 0000000..ba2066b --- /dev/null +++ b/src/ollama_web/auth.py @@ -0,0 +1,142 @@ +"""Cookie authentication and CSRF protection.""" + +from __future__ import annotations + +import base64 +import hashlib +import hmac +import secrets +import time +from collections.abc import Awaitable, Callable +from http import HTTPStatus + +from starlette.datastructures import URL +from starlette.middleware.base import BaseHTTPMiddleware +from starlette.requests import Request +from starlette.responses import JSONResponse, RedirectResponse, Response + +SESSION_COOKIE = "ollama_web_session" +CSRF_COOKIE = "ollama_web_csrf" +AUTH_MAX_AGE_SECONDS = 60 * 60 * 24 * 14 +SAFE_METHODS = {"GET", "HEAD", "OPTIONS"} +AUTH_EXEMPT_PREFIXES = ("/static/",) +AUTH_EXEMPT_PATHS = { + "/login", + "/api/auth/login", + "/api/auth/status", +} + + +def _b64(data: bytes) -> str: + return base64.urlsafe_b64encode(data).decode("ascii").rstrip("=") + + +def _sign(secret_key: str, value: str) -> str: + sig = hmac.new(secret_key.encode(), value.encode(), hashlib.sha256).digest() + return _b64(sig) + + +def make_session_cookie(secret_key: str) -> str: + issued_at = str(int(time.time())) + nonce = secrets.token_urlsafe(16) + payload = f"{issued_at}.{nonce}" + return f"{payload}.{_sign(secret_key, payload)}" + + +def verify_session_cookie(secret_key: str, value: str | None) -> bool: + if not value: + return False + parts = value.split(".") + if len(parts) != 3: + return False + payload = ".".join(parts[:2]) + if not hmac.compare_digest(parts[2], _sign(secret_key, payload)): + return False + try: + issued_at = int(parts[0]) + except ValueError: + return False + return 0 <= time.time() - issued_at <= AUTH_MAX_AGE_SECONDS + + +def set_auth_cookies(response: Response, secret_key: str) -> str: + csrf = secrets.token_urlsafe(24) + response.set_cookie( + SESSION_COOKIE, + make_session_cookie(secret_key), + httponly=True, + samesite="lax", + max_age=AUTH_MAX_AGE_SECONDS, + ) + response.set_cookie( + CSRF_COOKIE, + csrf, + httponly=False, + samesite="lax", + max_age=AUTH_MAX_AGE_SECONDS, + ) + return csrf + + +def clear_auth_cookies(response: Response) -> None: + response.delete_cookie(SESSION_COOKIE) + response.delete_cookie(CSRF_COOKIE) + + +def is_authenticated(request: Request) -> bool: + return verify_session_cookie( + request.app.state.settings.secret_key, + request.cookies.get(SESSION_COOKIE), + ) + + +def _is_exempt(path: str) -> bool: + return path in AUTH_EXEMPT_PATHS or any( + path.startswith(prefix) for prefix in AUTH_EXEMPT_PREFIXES + ) + + +def _wants_json(request: Request) -> bool: + return request.url.path.startswith("/api/") + + +def _login_redirect(request: Request) -> RedirectResponse: + url = URL("/login").include_query_params(next=request.url.path) + return RedirectResponse(str(url), status_code=303) + + +class AuthMiddleware(BaseHTTPMiddleware): + """Protect app routes with a signed cookie and CSRF token.""" + + async def dispatch( + self, + request: Request, + call_next: Callable[[Request], Awaitable[Response]], + ) -> Response: + path = request.url.path + if not _is_exempt(path) and not is_authenticated(request): + if _wants_json(request): + return JSONResponse( + {"error": "Authentication required"}, + status_code=HTTPStatus.UNAUTHORIZED, + ) + return _login_redirect(request) + + if ( + path.startswith("/api/") + and path not in AUTH_EXEMPT_PATHS + and request.method not in SAFE_METHODS + ): + token_cookie = request.cookies.get(CSRF_COOKIE) + token_header = request.headers.get("x-csrf-token") + if ( + not token_cookie + or not token_header + or not hmac.compare_digest(token_cookie, token_header) + ): + return JSONResponse( + {"error": "Invalid CSRF token"}, + status_code=HTTPStatus.FORBIDDEN, + ) + + return await call_next(request) diff --git a/src/ollama_web/config.py b/src/ollama_web/config.py index 7b6d8f9..3325446 100644 --- a/src/ollama_web/config.py +++ b/src/ollama_web/config.py @@ -3,9 +3,15 @@ from __future__ import annotations import os +import secrets from dataclasses import dataclass, field +def _csv_env(name: str) -> list[str]: + raw = os.environ.get(name, "") + return [part.strip() for part in raw.split(",") if part.strip()] + + @dataclass class Settings: """Runtime settings resolved from environment variables.""" @@ -14,7 +20,7 @@ class Settings: default_model: str = field( default_factory=lambda: os.environ.get("OLLAMA_WEB_MODEL", "llama3.2") ) - host: str = field(default_factory=lambda: os.environ.get("OLLAMA_WEB_HOST", "0.0.0.0")) + host: str = field(default_factory=lambda: os.environ.get("OLLAMA_WEB_HOST", "127.0.0.1")) port: int = field(default_factory=lambda: int(os.environ.get("OLLAMA_WEB_PORT", "8000"))) data_dir: str = field( default_factory=lambda: os.environ.get("OLLAMA_WEB_DATA_DIR", "data") @@ -22,14 +28,29 @@ class Settings: max_upload_mb: int = field( default_factory=lambda: int(os.environ.get("OLLAMA_WEB_MAX_UPLOAD_MB", "20")) ) + pin: str = field( + default_factory=lambda: os.environ.get("OLLAMA_WEB_PIN") or secrets.token_urlsafe(6) + ) + pin_generated: bool = field(default_factory=lambda: "OLLAMA_WEB_PIN" not in os.environ) + secret_key: str = field( + default_factory=lambda: os.environ.get("OLLAMA_WEB_SECRET_KEY") or secrets.token_urlsafe(32) + ) + allowed_origins: list[str] = field( + default_factory=lambda: _csv_env("OLLAMA_WEB_ALLOWED_ORIGINS") + ) ollama_timeout: float = 120.0 scrape_timeout: float = 15.0 scrape_max_chars: int = 4000 search_max_results: int = 5 fetch_max_results: int = 3 fetch_max_chars: int = 8000 + max_fetch_mb: int = 10 + max_pdf_pages: int = 25 + max_message_chars: int = 20000 + max_attachment_text_chars: int = 20000 + max_image_pixels: int = 16_000_000 max_tool_result_chars: int = 3000 settings = Settings() -"""Process-wide settings instance.""" \ No newline at end of file +"""Process-wide settings instance.""" diff --git a/src/ollama_web/llm.py b/src/ollama_web/llm.py index 40af2d4..a18abf4 100644 --- a/src/ollama_web/llm.py +++ b/src/ollama_web/llm.py @@ -198,7 +198,10 @@ def chat_with_tools( # Exceeded tool rounds: ask for a final answer without tools. logger.info( - "max tool rounds exceeded, requesting final answer without tools (cumulative_tool_chars=%d)", + ( + "max tool rounds exceeded, requesting final answer without tools " + "(cumulative_tool_chars=%d)" + ), cumulative_tool_chars, ) yield { @@ -354,7 +357,12 @@ def stream_chat_with_tools( # Always truncate per-tool result immediately so it does not bloat # the context even before we reach the cumulative limit. result = _trim_tool_result(result, settings.max_tool_result_chars) - logger.info("tool %s executed len=%d elapsed=%.2fs", name, len(result), time.time() - t1) + logger.info( + "tool %s executed len=%d elapsed=%.2fs", + name, + len(result), + time.time() - t1, + ) yield {"type": "tool_end", "name": name, "result": result} tool_results.append((name, result)) total_result_len += len(result) @@ -380,7 +388,10 @@ def stream_chat_with_tools( # Exceeded tool rounds: ask for a final answer without tools. logger.info( - "max tool rounds exceeded, requesting final answer without tools (cumulative_tool_chars=%d)", + ( + "max tool rounds exceeded, requesting final answer without tools " + "(cumulative_tool_chars=%d)" + ), cumulative_tool_chars, ) yield { diff --git a/src/ollama_web/main.py b/src/ollama_web/main.py index 4d540ea..68ad8b8 100644 --- a/src/ollama_web/main.py +++ b/src/ollama_web/main.py @@ -13,6 +13,9 @@ def main() -> int: """Run the application.""" print(f"ollama-web starting on http://{settings.host}:{settings.port}") print(f"Ollama host: {settings.ollama_host}") + if settings.pin_generated: + print(f"Generated ollama-web PIN: {settings.pin}") + print("Set OLLAMA_WEB_PIN to use a stable PIN.") uvicorn.run( "ollama_web.app:app", host=settings.host, @@ -23,4 +26,4 @@ def main() -> int: if __name__ == "__main__": - sys.exit(main()) \ No newline at end of file + sys.exit(main()) diff --git a/src/ollama_web/middleware.py b/src/ollama_web/middleware.py new file mode 100644 index 0000000..bbddbac --- /dev/null +++ b/src/ollama_web/middleware.py @@ -0,0 +1,36 @@ +"""Security response headers.""" + +from __future__ import annotations + +from collections.abc import Awaitable, Callable + +from starlette.middleware.base import BaseHTTPMiddleware +from starlette.requests import Request +from starlette.responses import Response + + +class SecurityHeadersMiddleware(BaseHTTPMiddleware): + """Attach browser security headers to every response.""" + + async def dispatch( + self, + request: Request, + call_next: Callable[[Request], Awaitable[Response]], + ) -> Response: + response = await call_next(request) + response.headers.setdefault( + "Content-Security-Policy", + ( + "default-src 'self'; " + "script-src 'self'; " + "connect-src 'self'; " + "img-src 'self' data: blob:; " + "style-src 'self' 'unsafe-inline'; " + "font-src 'self'; " + "base-uri 'self'; " + "frame-ancestors 'none'" + ), + ) + response.headers.setdefault("X-Content-Type-Options", "nosniff") + response.headers.setdefault("Referrer-Policy", "same-origin") + return response diff --git a/src/ollama_web/routes/auth.py b/src/ollama_web/routes/auth.py new file mode 100644 index 0000000..808c2ec --- /dev/null +++ b/src/ollama_web/routes/auth.py @@ -0,0 +1,32 @@ +"""Authentication routes.""" + +from __future__ import annotations + +from starlette.requests import Request +from starlette.responses import JSONResponse + +from ..auth import clear_auth_cookies, is_authenticated, set_auth_cookies + + +async def login(request: Request) -> JSONResponse: + try: + body = await request.json() + except Exception: # noqa: BLE001 + body = {} + pin = str(body.get("pin", "")) + if pin != request.app.state.settings.pin: + return JSONResponse({"authenticated": False, "error": "Invalid PIN"}, status_code=401) + response = JSONResponse({"authenticated": True}) + csrf = set_auth_cookies(response, request.app.state.settings.secret_key) + response.headers["X-CSRF-Token"] = csrf + return response + + +async def logout(request: Request) -> JSONResponse: + response = JSONResponse({"authenticated": False}) + clear_auth_cookies(response) + return response + + +async def status(request: Request) -> JSONResponse: + return JSONResponse({"authenticated": is_authenticated(request)}) diff --git a/src/ollama_web/routes/chat.py b/src/ollama_web/routes/chat.py index eb7a555..9e0eae6 100644 --- a/src/ollama_web/routes/chat.py +++ b/src/ollama_web/routes/chat.py @@ -3,6 +3,7 @@ from __future__ import annotations import functools +import html import inspect import json import logging @@ -14,9 +15,10 @@ from ollama._types import Image as OllamaImage from starlette.requests import Request from starlette.responses import StreamingResponse -from ..sessions import SessionStore +from ..config import settings +from ..sessions import SessionStore, is_valid_id from ..tools.fetch import pop_fetched_files -from ..tools.image import resize_image +from ..tools.helper.image import resize_image from ..tools.registry import ToolRegistry, default_registry logger = logging.getLogger("ollama_web.chat") @@ -31,12 +33,18 @@ _TOOL_SYSTEM_PROMPT = ( ) +def _limit_text(text: str, limit: int) -> str: + if len(text) <= limit: + return text + return text[:limit] + "\n…[truncated]" + + def _parse_messages(raw: list[dict[str, Any]]) -> list[Message]: """Convert raw JSON message dicts into ``ollama.Message`` objects.""" out: list[Message] = [] for m in raw: role = m.get("role", "user") - content = m.get("content", "") + content = _limit_text(str(m.get("content", "") or ""), 20000) name = m.get("name") images = m.get("images") kwargs: dict[str, Any] = {"role": role, "content": content} @@ -74,9 +82,9 @@ def _attachment_context(store: SessionStore, session_id: str, file_ids: list[str chat_file = store.get_file(session_id, file_id) if chat_file is None or chat_file.is_image: continue - text = chat_file.text or "" + text = _limit_text(chat_file.text or "", settings.max_attachment_text_chars) parts.append( - f"\n{text}\n" ) if not parts: @@ -127,7 +135,9 @@ async def _chat_event_stream( think = payload.get("think") store: SessionStore = request.app.state.session_store - file_ids: list[str] = list(payload.get("file_ids", [])) + file_ids: list[str] = [ + str(file_id) for file_id in payload.get("file_ids", []) if is_valid_id(str(file_id)) + ] user_content = "" assistant_text = "" @@ -140,7 +150,11 @@ async def _chat_event_stream( raw_messages = payload.get("messages", []) if raw_messages: - user_content = str(raw_messages[-1].get("content", "") or "") + user_content = _limit_text( + str(raw_messages[-1].get("content", "") or ""), + request.app.state.settings.max_message_chars, + ) + raw_messages[-1]["content"] = user_content attachment_ctx = "" if session_id and file_ids: @@ -192,7 +206,10 @@ async def _chat_event_stream( messages, model, think=think, host=host, registry=registry ): if event.get("type") == "delta": - assistant_text += event.get("content", "") + assistant_text = _limit_text( + assistant_text + event.get("content", ""), + request.app.state.settings.max_message_chars, + ) yield event except Exception as exc: # noqa: BLE001 @@ -201,7 +218,10 @@ async def _chat_event_stream( yield {"type": "error", "message": error_msg} # Persist the error as the assistant message so it survives reloads # and re-renders in the chat pane. - assistant_text = f"[ERROR] {error_msg}\n\n画像を含むメッセージを送信する場合、vision 対応モデルを選択してください。" + assistant_text = ( + f"[ERROR] {error_msg}\n\n" + "画像を含むメッセージを送信する場合、vision 対応モデルを選択してください。" + ) finally: # Persist user and assistant messages to the session even when the @@ -241,6 +261,16 @@ async def chat(request: Request) -> StreamingResponse: """POST /api/chat: stream chat events as Server-Sent Events.""" try: body = await request.body() + if len(body) > request.app.state.settings.max_message_chars * 4: + data = json.dumps( + {"type": "error", "message": "Request body too large"}, + ensure_ascii=False, + ) + return StreamingResponse( + _single_event(data), + media_type="text/event-stream", + status_code=413, + ) payload = json.loads(body.decode("utf-8")) except Exception as exc: logger.error("failed to parse request json: %s", exc) @@ -252,7 +282,12 @@ async def chat(request: Request) -> StreamingResponse: session_id = payload.get("session_id") msg_count = len(payload.get("messages", [])) - logger.info("chat request model=%s session=%s messages=%d", payload.get("model"), session_id, msg_count) + logger.info( + "chat request model=%s session=%s messages=%d", + payload.get("model"), + session_id, + msg_count, + ) return StreamingResponse( _event_stream(request, payload, session_id), media_type="text/event-stream", @@ -261,4 +296,4 @@ async def chat(request: Request) -> StreamingResponse: async def _single_event(data: str) -> AsyncIterator[bytes]: """Yield a single SSE event and finish.""" - yield f"data: {data}\n\n".encode() \ No newline at end of file + yield f"data: {data}\n\n".encode() diff --git a/src/ollama_web/routes/pages.py b/src/ollama_web/routes/pages.py index 8e1d084..52af9e8 100644 --- a/src/ollama_web/routes/pages.py +++ b/src/ollama_web/routes/pages.py @@ -25,3 +25,13 @@ async def index(request: Request) -> Response: {"models": models, "default_model": default_model}, media_type="text/html; charset=utf-8", ) + + +async def login(request: Request) -> Response: + """Render the PIN login page.""" + return templates.TemplateResponse( + request, + "login.html", + {}, + media_type="text/html; charset=utf-8", + ) diff --git a/src/ollama_web/routes/sessions.py b/src/ollama_web/routes/sessions.py index 8640ec3..7b01705 100644 --- a/src/ollama_web/routes/sessions.py +++ b/src/ollama_web/routes/sessions.py @@ -2,20 +2,24 @@ from __future__ import annotations +import json import logging -from typing import Any +from typing import Any, cast +from starlette.datastructures import UploadFile from starlette.requests import Request from starlette.responses import JSONResponse -from ..sessions import SessionStore, _IMAGE_MIMES, _IMAGE_SUFFIXES -from ..tools.pdf import extract_pdf_text +from ..sessions import _IMAGE_MIMES, _IMAGE_SUFFIXES, SessionStore, is_valid_id +from ..tools.helper.pdf import extract_pdf_text logger = logging.getLogger("ollama_web.sessions") +_UPLOAD_CHUNK_SIZE = 1024 * 1024 + def _get_store(request: Request) -> SessionStore: - return request.app.state.session_store + return cast(SessionStore, request.app.state.session_store) def _is_image_file(name: str, mime: str) -> bool: @@ -36,7 +40,8 @@ async def list_sessions(request: Request) -> JSONResponse: async def create_session(request: Request) -> JSONResponse: store = _get_store(request) - body = await request.json() if await request.body() else {} + raw = await request.body() + body = json.loads(raw.decode("utf-8")) if raw else {} title = body.get("title") session = store.create(title=title) return JSONResponse(session) @@ -45,6 +50,8 @@ async def create_session(request: Request) -> JSONResponse: async def get_session(request: Request) -> JSONResponse: store = _get_store(request) session_id = request.path_params["session_id"] + if not is_valid_id(session_id): + return JSONResponse({"error": "Invalid session id"}, status_code=400) session = store.get(session_id) if session is None: return JSONResponse({"error": "Session not found"}, status_code=404) @@ -54,6 +61,8 @@ async def get_session(request: Request) -> JSONResponse: async def delete_session(request: Request) -> JSONResponse: store = _get_store(request) session_id = request.path_params["session_id"] + if not is_valid_id(session_id): + return JSONResponse({"error": "Invalid session id"}, status_code=400) ok = store.delete(session_id) if not ok: return JSONResponse({"error": "Session not found"}, status_code=404) @@ -63,6 +72,8 @@ async def delete_session(request: Request) -> JSONResponse: async def upload_file(request: Request) -> JSONResponse: store = _get_store(request) session_id = request.path_params["session_id"] + if not is_valid_id(session_id): + return JSONResponse({"error": "Invalid session id"}, status_code=400) session = store.get(session_id) if session is None: return JSONResponse({"error": "Session not found"}, status_code=404) @@ -79,22 +90,38 @@ async def upload_file(request: Request) -> JSONResponse: for upload in files: if upload is None: continue + if not hasattr(upload, "read"): + results.append({"name": "unknown", "error": "Invalid upload"}) + continue + upload_file = cast(UploadFile, upload) try: - data = await upload.read() + chunks: list[bytes] = [] + total = 0 + while True: + chunk = await upload_file.read(_UPLOAD_CHUNK_SIZE) + if not chunk: + break + total += len(chunk) + if total > max_size: + raise ValueError( + f"File exceeds {request.app.state.settings.max_upload_mb} MB limit" + ) + chunks.append(chunk) + data = b"".join(chunks) except Exception as exc: # noqa: BLE001 - results.append({"name": getattr(upload, "filename", "unknown"), "error": str(exc)}) + results.append({"name": getattr(upload_file, "filename", "unknown"), "error": str(exc)}) continue if len(data) > max_size: results.append( { - "name": getattr(upload, "filename", "unknown"), + "name": getattr(upload_file, "filename", "unknown"), "error": f"File exceeds {request.app.state.settings.max_upload_mb} MB limit", } ) continue - name = getattr(upload, "filename", "uploaded-file") or "uploaded-file" - content_type = getattr(upload, "content_type", None) or "application/octet-stream" + name = getattr(upload_file, "filename", "uploaded-file") or "uploaded-file" + content_type = getattr(upload_file, "content_type", None) or "application/octet-stream" text = "" if _is_image_file(name, content_type): # Images are passed to ollama via Message.images (base64), not as text. @@ -128,7 +155,9 @@ async def delete_file(request: Request) -> JSONResponse: store = _get_store(request) session_id = request.path_params["session_id"] file_id = request.path_params["file_id"] + if not is_valid_id(session_id) or not is_valid_id(file_id): + return JSONResponse({"error": "Invalid id"}, status_code=400) ok = store.remove_file(session_id, file_id) if not ok: return JSONResponse({"error": "File not found"}, status_code=404) - return JSONResponse({"deleted": True}) \ No newline at end of file + return JSONResponse({"deleted": True}) diff --git a/src/ollama_web/sessions.py b/src/ollama_web/sessions.py index 7cc06ad..3eab31f 100644 --- a/src/ollama_web/sessions.py +++ b/src/ollama_web/sessions.py @@ -3,20 +3,28 @@ from __future__ import annotations import json +import re import shutil import uuid from dataclasses import dataclass, field from datetime import datetime, timezone from pathlib import Path -from typing import Any +from typing import Any, cast from .config import settings +_UUID_HEX_RE = re.compile(r"^[0-9a-f]{32}$") + def _now() -> str: return datetime.now(timezone.utc).isoformat() +def is_valid_id(value: str) -> bool: + """Return whether a route id is a generated UUID hex string.""" + return bool(_UUID_HEX_RE.fullmatch(value)) + + _IMAGE_MIMES: set[str] = { "image/png", "image/jpeg", @@ -53,7 +61,7 @@ class ChatFile: } @classmethod - def from_dict(cls, data: dict[str, Any]) -> "ChatFile": + def from_dict(cls, data: dict[str, Any]) -> ChatFile: return cls( id=data["id"], name=data["name"], @@ -89,7 +97,7 @@ class ChatMessage: } @classmethod - def from_dict(cls, data: dict[str, Any]) -> "ChatMessage": + def from_dict(cls, data: dict[str, Any]) -> ChatMessage: return cls( role=data.get("role", "user"), content=data.get("content", ""), @@ -120,7 +128,11 @@ class SessionStore: out: list[dict[str, Any]] = [] if not self.sessions_dir.exists(): return out - for entry in sorted(self.sessions_dir.iterdir(), key=lambda p: p.stat().st_mtime, reverse=True): + for entry in sorted( + self.sessions_dir.iterdir(), + key=lambda p: p.stat().st_mtime, + reverse=True, + ): if not entry.is_dir(): continue session_file = entry / "session.json" @@ -155,25 +167,37 @@ class SessionStore: return session def get(self, session_id: str) -> dict[str, Any] | None: + if not is_valid_id(session_id): + return None session_file = self._session_file(session_id) if not session_file.exists(): return None try: - return json.loads(session_file.read_text(encoding="utf-8")) + return cast(dict[str, Any], json.loads(session_file.read_text(encoding="utf-8"))) except Exception: # noqa: BLE001 return None def save(self, session: dict[str, Any]) -> None: + if not is_valid_id(str(session.get("id", ""))): + return session["updated_at"] = _now() self._save(session["id"], session) def _save(self, session_id: str, session: dict[str, Any]) -> None: + if not is_valid_id(session_id): + return session_file = self._session_file(session_id) session_file.parent.mkdir(parents=True, exist_ok=True) session_file.write_text(json.dumps(session, ensure_ascii=False, indent=2), encoding="utf-8") def delete(self, session_id: str) -> bool: + if not is_valid_id(session_id): + return False session_dir = self._session_dir(session_id) + try: + session_dir.resolve().relative_to(self.sessions_dir.resolve()) + except ValueError: + return False if not session_dir.exists(): return False try: @@ -219,13 +243,17 @@ class SessionStore: text: str, source: str = "upload", ) -> ChatFile: + if not is_valid_id(session_id): + raise ValueError("Invalid session id") self._session_dir(session_id).mkdir(parents=True, exist_ok=True) file_id = uuid.uuid4().hex ext = Path(name).suffix stored_name = f"{file_id}{ext}" file_path = self._files_dir(session_id) / stored_name file_path.write_bytes(data) - rel_path = str((self._session_dir(session_id) / "files" / stored_name).relative_to(self.data_dir)) + rel_path = str( + (self._session_dir(session_id) / "files" / stored_name).relative_to(self.data_dir) + ) chat_file = ChatFile( id=file_id, name=name, @@ -244,6 +272,8 @@ class SessionStore: return chat_file def remove_file(self, session_id: str, file_id: str) -> bool: + if not is_valid_id(session_id) or not is_valid_id(file_id): + return False session = self.get(session_id) if session is None: return False @@ -254,7 +284,8 @@ class SessionStore: files.remove(target) session["files"] = files try: - abs_path = self.data_dir / target["path"] + abs_path = (self.data_dir / target["path"]).resolve() + abs_path.relative_to(self.data_dir) if abs_path.exists(): abs_path.unlink() except Exception: # noqa: BLE001 @@ -263,6 +294,8 @@ class SessionStore: return True def get_file(self, session_id: str, file_id: str) -> ChatFile | None: + if not is_valid_id(session_id) or not is_valid_id(file_id): + return None session = self.get(session_id) if session is None: return None @@ -275,9 +308,9 @@ class SessionStore: chat_file = self.get_file(session_id, file_id) if chat_file is None: return None - abs_path = self.data_dir / chat_file.path + abs_path = (self.data_dir / chat_file.path).resolve() try: + abs_path.relative_to(self.data_dir) return abs_path.read_bytes() except Exception: # noqa: BLE001 return None - diff --git a/src/ollama_web/static/app.js b/src/ollama_web/static/app.js index 864f69e..3240dcc 100644 --- a/src/ollama_web/static/app.js +++ b/src/ollama_web/static/app.js @@ -15,12 +15,41 @@ const newSessionBtn = document.getElementById("new-session-btn"); const menuBtn = document.getElementById("menu-btn"); const sidebar = document.getElementById("sidebar"); const sidebarBackdrop = document.getElementById("sidebar-backdrop"); +const TOOLS = window.TOOLS || []; let currentSessionId = null; let currentSession = null; let pendingFiles = []; let abortController = null; +function getCookie(name) { + const prefix = `${name}=`; + for (const part of document.cookie.split(";")) { + const trimmed = part.trim(); + if (trimmed.startsWith(prefix)) { + return decodeURIComponent(trimmed.slice(prefix.length)); + } + } + return ""; +} + +function csrfHeaders(headers = {}) { + const token = getCookie("ollama_web_csrf"); + return token ? { ...headers, "X-CSRF-Token": token } : headers; +} + +async function csrfFetch(url, options = {}) { + const method = (options.method || "GET").toUpperCase(); + const headers = ["POST", "PUT", "PATCH", "DELETE"].includes(method) + ? csrfHeaders(options.headers || {}) + : options.headers; + const res = await fetch(url, { ...options, headers }); + if (res.status === 401) { + window.location.assign(`/login?next=${encodeURIComponent(window.location.pathname)}`); + } + return res; +} + function simpleMarkdownToHtml(text) { const el = document.createElement("div"); el.setAttribute("style", "white-space:pre-wrap"); @@ -65,7 +94,12 @@ function renderMarkdown(text) { try { const { text: protectedText, placeholders } = protectMath(text); const html = marked.parse(protectedText); - if (typeof html === "string") return restoreMath(html, placeholders); + if (typeof html === "string") { + const restored = restoreMath(html, placeholders); + return typeof DOMPurify !== "undefined" && DOMPurify.sanitize + ? DOMPurify.sanitize(restored) + : simpleMarkdownToHtml(text); + } } catch { // fall through } @@ -226,7 +260,7 @@ function renderSessionList(sessions) { async function createSession() { try { - const res = await fetch("/api/sessions", { method: "POST" }); + const res = await csrfFetch("/api/sessions", { method: "POST" }); if (!res.ok) throw new Error(res.statusText); const session = await res.json(); await loadSessions(); @@ -240,7 +274,7 @@ async function createSession() { async function deleteSession(id) { if (!confirm("このセッションを削除しますか？")) return; try { - const res = await fetch(`/api/sessions/${id}`, { method: "DELETE" }); + const res = await csrfFetch(`/api/sessions/${id}`, { method: "DELETE" }); if (!res.ok) throw new Error(res.statusText); if (currentSessionId === id) { currentSessionId = null; @@ -358,7 +392,7 @@ async function uploadFiles(files) { form.append("files", file); } try { - const res = await fetch(`/api/sessions/${currentSessionId}/files`, { + const res = await csrfFetch(`/api/sessions/${currentSessionId}/files`, { method: "POST", body: form, }); @@ -455,7 +489,7 @@ async function send() { let res; try { - res = await fetch("/api/chat", { + res = await csrfFetch("/api/chat", { method: "POST", headers: { "Content-Type": "application/json" }, body: requestBody, @@ -570,7 +604,10 @@ async function send() { assistantBody.innerHTML = ""; placeholderCleared = true; } - assistantBody.innerHTML += `エラー: ${escapeHtml(ev.message)}`; + const span = document.createElement("span"); + span.style.color = "#f85149"; + span.textContent = `エラー: ${ev.message}`; + assistantBody.appendChild(span); } else if (ev.type === "done") { break; } @@ -642,4 +679,4 @@ cancelBtn.addEventListener("click", () => { } }); -loadSessions(); \ No newline at end of file +loadSessions(); diff --git a/src/ollama_web/static/login.js b/src/ollama_web/static/login.js new file mode 100644 index 0000000..648e219 --- /dev/null +++ b/src/ollama_web/static/login.js @@ -0,0 +1,21 @@ +"use strict"; + +const form = document.getElementById("login-form"); +const pinInput = document.getElementById("pin-input"); +const errorEl = document.getElementById("login-error"); + +form.addEventListener("submit", async (event) => { + event.preventDefault(); + errorEl.textContent = ""; + const res = await fetch("/api/auth/login", { + method: "POST", + headers: { "Content-Type": "application/json" }, + body: JSON.stringify({ pin: pinInput.value }), + }); + if (!res.ok) { + errorEl.textContent = "PINが違います"; + return; + } + const next = new URLSearchParams(window.location.search).get("next") || "/"; + window.location.assign(next.startsWith("/") ? next : "/"); +}); diff --git a/src/ollama_web/static/style.css b/src/ollama_web/static/style.css index 1c7b7c9..14dce76 100644 --- a/src/ollama_web/static/style.css +++ b/src/ollama_web/static/style.css @@ -489,3 +489,42 @@ textarea#input { button#send-btn { padding: 0 20px; } +.login-page { + display: grid; + place-items: center; + min-height: 100vh; +} + +.login-shell { + width: min(360px, calc(100vw - 32px)); +} + +.login-form { + display: grid; + gap: 12px; + padding: 22px; + background: var(--panel); + border: 1px solid var(--border); + border-radius: 8px; +} + +.login-form h1 { + margin: 0 0 8px; + font-size: 20px; +} + +.login-form input { + width: 100%; + background: var(--bg); + color: var(--text); + border: 1px solid var(--border); + border-radius: 6px; + padding: 10px; + font-size: 16px; +} + +.login-form p { + min-height: 20px; + margin: 0; + color: var(--danger); +} diff --git a/src/ollama_web/static/tools.js b/src/ollama_web/static/tools.js new file mode 100644 index 0000000..b15587e --- /dev/null +++ b/src/ollama_web/static/tools.js @@ -0,0 +1,8 @@ +"use strict"; + +window.TOOLS = [ + { name: "web_search", label: "Web検索" }, + { name: "scrape_url", label: "スクレイピング" }, + { name: "search_and_fetch", label: "ファイル検索・取得" }, + { name: "pdf_to_text", label: "PDFテキスト変換" }, +]; diff --git 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