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1976 lines (1610 loc) · 70.8 KB
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import asyncio
import base64
import collections
import hashlib
import json
import logging
import os
import re
import secrets
import socket
import uuid as _uuid
import time
from contextlib import asynccontextmanager
from dataclasses import dataclass
from datetime import datetime
from enum import Enum
from pathlib import Path
from typing import Literal, Optional, Protocol
from urllib.parse import quote, urlparse
import psutil
from fastapi import Depends, FastAPI, HTTPException, Request, WebSocket, WebSocketDisconnect
from fastapi.responses import HTMLResponse, JSONResponse, Response
from starlette.middleware.gzip import GZipMiddleware
from pydantic import BaseModel, ConfigDict, Field, computed_field
logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
logger = logging.getLogger("leafy")
APP_TITLE = "V2Leafy"
DEFAULT_PORT = 8080
SESSION_COOKIE = "leafy_session"
SESSION_TTL = 60 * 60 * 24 * 7
SESSION_CLEANUP_EVERY = 300
MAX_HTTP_BODY_BYTES = 1 * 1024 * 1024
MAX_WS_FRAME_BYTES = 512 * 1024
MAX_CLIENTS = 1000
MAX_DASHBOARD_CONNECTIONS = 8
MAX_DASHBOARD_QUEUE = 64
MAX_LOG_ENTRIES = 300
MAX_SUB_ENTRIES = 50
HEARTBEAT_INTERVAL_SECONDS = 10
HEARTBEAT_TIMEOUT_SECONDS = 30
TELEMETRY_INTERVAL_SECONDS = 1.0
PERSIST_INTERVAL_SECONDS = 30
RELAY_BUF = 64 * 1024
PBKDF2_ITERATIONS = 600_000
STATE_VERSION = 1
STATE_FILE_NAME = "unified_state.json"
BASE_DIR = Path(__file__).resolve().parent
STORAGE_DIR = BASE_DIR / "storage"
STATE_FILE_PATH = STORAGE_DIR / STATE_FILE_NAME
INDEX_HTML_PATH = BASE_DIR / "index.html"
_FALLBACK_HTML = """<!DOCTYPE html>
<html><head><meta charset="utf-8"><title>V2Leafy</title></head>
<body><h1>V2Leafy</h1><p>Running. index.html was not found next to main.py.</p></body></html>"""
def get_listen_port() -> int:
raw = os.environ.get("PORT", str(DEFAULT_PORT))
try:
parsed = int(raw)
return parsed if parsed > 0 else DEFAULT_PORT
except (ValueError, TypeError):
return DEFAULT_PORT
_SECRET_KEY = os.environ.get("SECRET_KEY", "")
if not _SECRET_KEY:
_SECRET_KEY = "leafy-local-development-secret"
logger.warning(
"SECRET_KEY is not set; using a local-development key. "
"Railway generates SECRET_KEY automatically via railway.json."
)
RAILWAY_MARKERS = (
"RAILWAY_ENVIRONMENT_ID",
"RAILWAY_PROJECT_ID",
"RAILWAY_SERVICE_ID",
"RAILWAY_PUBLIC_DOMAIN",
)
class Platform(str, Enum):
RAILWAY = "railway"
CODESPACES = "codespaces"
LOCAL = "local"
UNKNOWN = "unknown"
def detect_platform() -> Platform:
if (
os.environ.get("CODESPACES", "").lower() == "true"
or os.environ.get("CODESPACE_NAME")
or os.environ.get("GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN")
):
return Platform.CODESPACES
if any(os.environ.get(key) for key in RAILWAY_MARKERS):
return Platform.RAILWAY
return Platform.LOCAL
@dataclass(frozen=True)
class ThemeTokens:
accent: str
accent_hover: str
accent_background: str
success: str
selection: str
RAILWAY_THEME = ThemeTokens(
accent="#8b5cf6",
accent_hover="#7c3aed",
accent_background="rgba(139, 92, 246, 0.15)",
success="#8b5cf6",
selection="rgba(139, 92, 246, 0.35)",
)
CODESPACES_THEME = ThemeTokens(
accent="#a1a1aa",
accent_hover="#d4d4d8",
accent_background="rgba(161, 161, 170, 0.15)",
success="#a1a1aa",
selection="rgba(161, 161, 170, 0.35)",
)
LOCAL_THEME = RAILWAY_THEME
UNKNOWN_THEME = RAILWAY_THEME
@dataclass(frozen=True)
class PlatformCapabilities:
websocket_gateway: bool = True
subscription_links: bool = True
relay_tools: bool = False
persistent_storage: bool = False
codespaces_metadata: bool = False
def capabilities_for(platform: Platform) -> PlatformCapabilities:
if platform is Platform.CODESPACES:
return PlatformCapabilities(persistent_storage=True, codespaces_metadata=True)
if platform is Platform.RAILWAY:
return PlatformCapabilities(persistent_storage=False)
return PlatformCapabilities(persistent_storage=True)
@dataclass(frozen=True)
class PlatformContext:
platform: Platform
display_name: str
theme: ThemeTokens
public_base_url: str
bind_port: int
is_codespaces: bool
show_codespaces_info: bool
persistence_mode: str
capabilities: PlatformCapabilities
codespaces_name: str = ""
codespaces_domain: str = ""
def build_platform_context(platform: Optional[Platform] = None) -> PlatformContext:
p = platform or detect_platform()
port = get_listen_port()
if p is Platform.CODESPACES:
name = os.environ.get("CODESPACE_NAME", "")
fwd = os.environ.get("GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN", "app.github.dev")
base = f"https://{name}-{port}.{fwd}" if name else f"http://localhost:{port}"
return PlatformContext(
platform=p, display_name="GitHub Codespaces", theme=CODESPACES_THEME,
public_base_url=base, bind_port=port, is_codespaces=True,
show_codespaces_info=True, persistence_mode="workspace",
capabilities=capabilities_for(p), codespaces_name=name, codespaces_domain=fwd,
)
if p is Platform.RAILWAY:
domain = os.environ.get("RAILWAY_PUBLIC_DOMAIN", "").strip().lower()
base = f"https://{domain}" if domain else f"http://localhost:{port}"
return PlatformContext(
platform=p, display_name="Railway", theme=RAILWAY_THEME,
public_base_url=base, bind_port=port, is_codespaces=False,
show_codespaces_info=False, persistence_mode="memory",
capabilities=capabilities_for(p),
)
if p is Platform.LOCAL:
return PlatformContext(
platform=p, display_name="Local Development", theme=LOCAL_THEME,
public_base_url=f"http://localhost:{port}", bind_port=port, is_codespaces=False,
show_codespaces_info=False, persistence_mode="workspace",
capabilities=capabilities_for(p),
)
return PlatformContext(
platform=Platform.UNKNOWN, display_name="Unknown", theme=UNKNOWN_THEME,
public_base_url=f"http://localhost:{port}", bind_port=port, is_codespaces=False,
show_codespaces_info=False, persistence_mode="memory",
capabilities=capabilities_for(Platform.UNKNOWN),
)
PLATFORM_CTX = build_platform_context()
class AuthState(BaseModel):
password_hash: str = ""
pass_setup: bool = False
class ClientState(BaseModel):
id: str
name: str = "Client"
limit: float = 0.0
limit_bytes: int = 0
used_bytes: int = 0
expiry: str = ""
status: int = 1
active: bool = True
utls: str = "chrome"
created_at: str = ""
@computed_field
@property
def usage(self) -> float:
return round(self.used_bytes / (1024.0 ** 3), 3)
class SubEntry(BaseModel):
id: str = ""
type: str = "proxy"
transport: str = "ws"
name: str = ""
ipAddress: str = ""
class AppState(BaseModel):
model_config = ConfigDict(populate_by_name=True, extra="ignore")
version: int = STATE_VERSION
clients: list[ClientState] = Field(default_factory=list)
sub_client_subscriptions: dict[str, list[SubEntry]] = Field(
default_factory=dict, alias="subClientSubscriptions"
)
settings: dict = Field(default_factory=dict)
custom_domain: str = ""
custom_addresses: list[str] = Field(default_factory=list)
auth: AuthState = Field(default_factory=AuthState)
class StateStore(Protocol):
async def load(self) -> Optional[AppState]: ...
async def save(self, state: AppState) -> None: ...
class MemoryStateStore:
async def load(self) -> Optional[AppState]:
return None
async def save(self, state: AppState) -> None:
return None
class FileStateStore:
def __init__(self, path: Path):
self.path = path
self._lock = asyncio.Lock()
async def load(self) -> Optional[AppState]:
if not self.path.exists():
return None
try:
data = json.loads(self.path.read_text(encoding="utf-8"))
state = AppState.model_validate(data)
if state.version != STATE_VERSION:
logger.warning("State version mismatch (%s); starting fresh", state.version)
return None
return state
except Exception as exc:
logger.warning("Invalid persisted state; starting fresh: %s", exc)
return None
async def save(self, state: AppState) -> None:
async with self._lock:
try:
self.path.parent.mkdir(parents=True, exist_ok=True)
tmp = self.path.with_name(self.path.name + ".tmp")
tmp.write_text(
json.dumps(state.model_dump(mode="json", by_alias=True), indent=2),
encoding="utf-8",
)
os.replace(tmp, self.path)
except Exception as exc:
logger.warning("Could not persist state: %s", exc)
class AppStateManager:
def __init__(self, store: StateStore):
self.store = store
self.state = AppState()
self.lock = asyncio.Lock()
async def init(self) -> None:
loaded = await self.store.load()
if loaded is not None:
self.state = loaded
else:
self.state = AppState()
ensure_default_client(self.state)
await self.store.save(self.state)
async def persist(self) -> None:
async with self.lock:
await self.store.save(self.state)
def snapshot(self) -> dict:
return {
"clients": [c.model_dump(mode="json") for c in self.state.clients],
"subClientSubscriptions": {
k: [e.model_dump(mode="json") for e in v]
for k, v in self.state.sub_client_subscriptions.items()
},
"settings": self.state.settings,
}
def select_store() -> StateStore:
if PLATFORM_CTX.persistence_mode == "memory":
return MemoryStateStore()
return FileStateStore(STATE_FILE_PATH)
STATE_MGR = AppStateManager(select_store())
def ensure_default_client(state: AppState) -> None:
if state.clients:
return
cid = generate_uuid()
state.clients.append(ClientState(id=cid, name="Default", created_at=datetime.now().isoformat()))
state.sub_client_subscriptions[cid] = [
SubEntry(
id="info-" + secrets.token_hex(4),
type="info",
name="📢 Welcome to V2Leafy | %data-used%GB / %data-total%",
),
SubEntry(
id="ws-" + secrets.token_hex(4),
type="proxy",
transport="ws",
name="⚡ %client-name%-WebSocket",
),
]
class SetupRequest(BaseModel):
model_config = ConfigDict(populate_by_name=True)
password: str = Field(min_length=4, max_length=128, alias="pass")
class LoginRequest(BaseModel):
model_config = ConfigDict(populate_by_name=True)
password: str = Field(min_length=1, max_length=128, alias="pass")
class ClientCreateRequest(BaseModel):
label: str = Field(min_length=1, max_length=60)
limit_value: float = Field(default=0.0, ge=0, le=1_000_000_000)
limit_unit: Literal["GB", "MB"] = "GB"
expiry: str = Field(default="", max_length=40)
class ClientPatchRequest(BaseModel):
active: Optional[bool] = None
label: Optional[str] = Field(default=None, min_length=1, max_length=60)
limit_value: Optional[float] = Field(default=None, ge=0, le=1_000_000_000)
reset_usage: Optional[bool] = None
class ActionRequest(BaseModel):
action: Literal["start", "stop", "restart", "clear_logs"]
class StateUpdateRequest(BaseModel):
state: Optional[dict] = None
reason: str = Field(default="sync", max_length=60)
SESSIONS: dict[str, float] = {}
SESSIONS_LOCK = asyncio.Lock()
def hash_password(pw: str) -> str:
salt = secrets.token_bytes(16)
dk = hashlib.pbkdf2_hmac("sha256", pw.encode("utf-8"), salt, PBKDF2_ITERATIONS)
return (
f"pbkdf2_sha256${PBKDF2_ITERATIONS}"
f"${base64.b64encode(salt).decode()}"
f"${base64.b64encode(dk).decode()}"
)
def verify_password(pw: str, stored: str) -> bool:
try:
algo, iters_s, salt_b64, hash_b64 = stored.split("$", 3)
if algo != "pbkdf2_sha256":
return False
iterations = int(iters_s)
salt = base64.b64decode(salt_b64)
expected = base64.b64decode(hash_b64)
dk = hashlib.pbkdf2_hmac("sha256", pw.encode("utf-8"), salt, iterations)
return secrets.compare_digest(dk, expected)
except Exception:
return False
def session_valid_sync(token: Optional[str]) -> bool:
if not token:
return False
exp = SESSIONS.get(token)
if exp is None or exp < time.time():
SESSIONS.pop(token, None)
return False
return True
async def is_valid_session(token: Optional[str]) -> bool:
async with SESSIONS_LOCK:
return session_valid_sync(token)
async def create_session() -> str:
token = secrets.token_urlsafe(32)
async with SESSIONS_LOCK:
SESSIONS[token] = time.time() + SESSION_TTL
return token
async def destroy_session(token: Optional[str]) -> None:
if token:
async with SESSIONS_LOCK:
SESSIONS.pop(token, None)
async def require_auth(request: Request):
token = request.cookies.get(SESSION_COOKIE)
if not await is_valid_session(token):
raise HTTPException(status_code=401, detail="Unauthorized")
return token
async def session_cleanup_loop() -> None:
while True:
await asyncio.sleep(SESSION_CLEANUP_EVERY)
now = time.time()
async with SESSIONS_LOCK:
for token in [k for k, v in SESSIONS.items() if v < now]:
SESSIONS.pop(token, None)
def _cookie_secure(request: Request) -> bool:
if PLATFORM_CTX.platform in (Platform.RAILWAY, Platform.CODESPACES):
return True
if request.headers.get("x-forwarded-proto", "").lower() == "https":
return True
return request.url.scheme == "https"
def _set_session_cookie(request: Request, resp: Response, token: str) -> None:
resp.set_cookie(
key=SESSION_COOKIE,
value=token,
max_age=SESSION_TTL,
httponly=True,
samesite="lax",
secure=_cookie_secure(request),
path="/",
)
UUID_RE = re.compile(r"^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$")
def generate_uuid() -> str:
return str(_uuid.uuid4())
def public_host(ctx: Optional[PlatformContext] = None) -> str:
ctx = ctx or PLATFORM_CTX
return urlparse(ctx.public_base_url).hostname or "localhost"
def use_tls(ctx: Optional[PlatformContext] = None) -> bool:
ctx = ctx or PLATFORM_CTX
return urlparse(ctx.public_base_url).scheme == "https"
def generate_vless_link(
client_id: str,
remark: str = "V2Leafy Node",
address: Optional[str] = None,
ctx: Optional[PlatformContext] = None,
) -> str:
ctx = ctx or PLATFORM_CTX
host = (address or public_host(ctx)).strip()
if host.startswith("["):
host = host[1:host.index("]")]
elif host.count(":") == 1 and host.rsplit(":", 1)[1].isdigit():
host = host.rsplit(":", 1)[0]
tls = use_tls(ctx)
port = 443 if tls else ctx.bind_port
path = f"/ws/{client_id}"
params = {"encryption": "none"}
if tls:
params.update({"security": "tls", "sni": host, "fp": "chrome", "alpn": "http/1.1"})
else:
params["security"] = "none"
params.update({"type": "ws", "host": host, "path": path})
query = "&".join(f"{k}={quote(str(v))}" for k, v in params.items())
return f"vless://{client_id}@{host}:{port}?{query}#{quote(remark)}"
def resolve_name_placeholders(text: str, client: ClientState) -> str:
if not text:
return "V2Leafy Node"
used_gb = round(client.used_bytes / (1024.0 ** 3), 2)
limit_gb = client.limit
limit_str = f"{limit_gb:.2f}GB" if limit_gb > 0 else "Unlimited"
remain_str = f"{max(0.0, limit_gb - used_gb):.2f}GB" if limit_gb > 0 else "Unlimited"
exp_str = client.expiry[:10] if client.expiry else "Never"
t = text
t = t.replace("%client-name%", client.name)
t = t.replace("%data-used%", f"{used_gb:.2f}")
t = t.replace("%data-total%", limit_str)
t = t.replace("%data-remain%", remain_str)
t = t.replace("%expiry-date%", exp_str)
return t
def build_single_sub_entry_link(
ctx: PlatformContext,
client: ClientState,
entry_type: str,
name: str,
ip: str = "",
) -> str:
remark = resolve_name_placeholders(name, client)
if entry_type == "info":
return f"trojan://{generate_uuid()}@127.0.0.1:80?security=none#{quote(remark)}"
domain = public_host(ctx)
address = (ip or "").strip() or domain
return generate_vless_link(client.id, remark=remark, address=address, ctx=ctx)
def build_client_sub_links(
state: AppState, client: ClientState, ctx: Optional[PlatformContext] = None
) -> list[str]:
ctx = ctx or PLATFORM_CTX
entries = state.sub_client_subscriptions.get(client.id, [])
links: list[str] = [
build_single_sub_entry_link(ctx, client, e.type, e.name, e.ipAddress)
for e in entries[:MAX_SUB_ENTRIES]
]
if not links:
links.append(
generate_vless_link(client.id, remark=f"V2Leafy🍃 {client.name}-Direct", ctx=ctx)
)
for i, addr in enumerate(state.custom_addresses):
if addr:
links.append(
generate_vless_link(
client.id,
remark=f"V2Leafy🍃 {client.name}-Node{i + 1}",
address=addr,
ctx=ctx,
)
)
return links
stats = {
"rx_bytes": 0,
"tx_bytes": 0,
"total_bytes": 0,
"total_errors": 0,
"start_time": time.time(),
}
gateway = {
"status": "running",
"started_at": time.time(),
}
_speed = {
"last_time": time.time(),
"last_rx": 0,
"last_tx": 0,
"down_mbps": 0.0,
"up_mbps": 0.0,
}
console_logs: collections.deque = collections.deque(maxlen=MAX_LOG_ENTRIES)
proxy_connections: dict[str, dict] = {}
class GatewayStatus(str, Enum):
RUNNING = "running"
STOPPED = "stopped"
RESTARTING = "restarting"
def gateway_running() -> bool:
return gateway["status"] == GatewayStatus.RUNNING.value
def gateway_uptime_sec() -> int:
return max(0, int(time.time() - gateway["started_at"]))
_MEM_LIMIT_CACHE: Optional[float] = None
def container_memory_limit_mb() -> float:
global _MEM_LIMIT_CACHE
if _MEM_LIMIT_CACHE is not None:
return _MEM_LIMIT_CACHE
candidates = [
("/sys/fs/cgroup/memory.max", "cgroupv2"),
("/sys/fs/cgroup/memory/memory.limit_in_bytes", "cgroupv1"),
]
for path, _kind in candidates:
try:
raw = Path(path).read_text().strip()
if raw in ("", "max"):
continue
limit = int(raw)
if limit > 0 and limit < (1 << 62):
_MEM_LIMIT_CACHE = round(limit / (1024 * 1024), 0)
return _MEM_LIMIT_CACHE
except (OSError, ValueError):
continue
_MEM_LIMIT_CACHE = 0.0
return _MEM_LIMIT_CACHE
def add_log(msg: str) -> None:
line = f"[{datetime.now().strftime('%H:%M:%S')}] {msg}"
console_logs.append(line)
logger.info(msg)
try:
asyncio.get_running_loop().create_task(_broadcast_log(line))
except RuntimeError:
pass
async def _broadcast_log(line: str) -> None:
await dashboard_mgr.broadcast("log_entry", {"line": line})
def check_client_quota(client: ClientState, extra_bytes: int) -> bool:
if not client.active or not client.status:
return False
limit_b = client.limit_bytes
if limit_b > 0 and (client.used_bytes + extra_bytes) > limit_b:
return False
return True
def record_traffic(client: ClientState, size: int, is_rx: bool) -> None:
stats["total_bytes"] += size
if is_rx:
stats["rx_bytes"] += size
else:
stats["tx_bytes"] += size
client.used_bytes += size
async def telemetry_snapshot() -> dict:
now = time.time()
dt = max(0.1, now - _speed["last_time"])
d_rx = stats["rx_bytes"] - _speed["last_rx"]
d_tx = stats["tx_bytes"] - _speed["last_tx"]
_speed["down_mbps"] = round((d_rx * 8.0) / (dt * 1024 * 1024), 2)
_speed["up_mbps"] = round((d_tx * 8.0) / (dt * 1024 * 1024), 2)
_speed["last_time"] = now
_speed["last_rx"] = stats["rx_bytes"]
_speed["last_tx"] = stats["tx_bytes"]
try:
load_avg = [round(x, 2) for x in os.getloadavg()]
except (AttributeError, OSError):
load_avg = [0.0, 0.0, 0.0]
ram_mb = 0.0
ram_total_mb = 512.0
cpu = 0.0
try:
proc = psutil.Process()
ram_mb = round(proc.memory_info().rss / (1024 * 1024), 1)
limit_mb = container_memory_limit_mb()
if limit_mb > 0:
ram_total_mb = limit_mb
else:
ram_total_mb = round(psutil.virtual_memory().total / (1024 * 1024), 0)
cpu = round(psutil.cpu_percent(interval=None), 1)
except Exception:
pass
return {
"connections": len(proxy_connections),
"totalRxGb": round(stats["rx_bytes"] / (1024.0 ** 3), 3),
"totalTxGb": round(stats["tx_bytes"] / (1024.0 ** 3), 3),
"speedDownMbps": _speed["down_mbps"],
"speedUpMbps": _speed["up_mbps"],
"loadAvg": load_avg,
"ramMb": ram_mb,
"ramTotalMb": ram_total_mb,
"cpuPercent": cpu,
"gateway": gateway["status"],
"gatewayUptimeSec": gateway_uptime_sec(),
}
async def telemetry_loop() -> None:
while True:
await asyncio.sleep(TELEMETRY_INTERVAL_SECONDS)
try:
await dashboard_mgr.broadcast("telemetry", await telemetry_snapshot())
except Exception:
pass
async def persist_loop() -> None:
while True:
await asyncio.sleep(PERSIST_INTERVAL_SECONDS)
try:
await STATE_MGR.persist()
except Exception:
pass
class DashboardConnection:
def __init__(self, websocket: WebSocket):
self.websocket = websocket
self.queue: asyncio.Queue = asyncio.Queue(maxsize=MAX_DASHBOARD_QUEUE)
self.last_ack = time.time()
self.unhealthy = False
self._hb_id = 0
class DashboardManager:
def __init__(self):
self.connections: dict[int, DashboardConnection] = {}
self.sequence = 0
self.lock = asyncio.Lock()
def next_seq(self) -> int:
self.sequence += 1
return self.sequence
async def register(self, conn: DashboardConnection) -> None:
async with self.lock:
self.connections[id(conn)] = conn
async def unregister(self, conn: DashboardConnection) -> None:
async with self.lock:
self.connections.pop(id(conn), None)
def _enqueue(self, conn: DashboardConnection, event_type: str, payload, critical: bool) -> None:
item = (event_type, payload)
try:
conn.queue.put_nowait(item)
except asyncio.QueueFull:
if critical:
try:
conn.queue.get_nowait()
except asyncio.QueueEmpty:
pass
try:
conn.queue.put_nowait(item)
except asyncio.QueueFull:
conn.unhealthy = True
async def broadcast(self, event_type: str, payload, critical: bool = False) -> None:
conns = list(self.connections.values())
for conn in conns:
self._enqueue(conn, event_type, payload, critical)
async def broadcast_state_changed(reason: str = "change") -> None:
await dashboard_mgr.broadcast(
"state_changed", {"state": STATE_MGR.snapshot(), "reason": reason}, critical=True
)
async def _dash_sender(conn: DashboardConnection, manager: DashboardManager) -> None:
try:
while True:
event_type, payload = await conn.queue.get()
await conn.websocket.send_json(
{"type": event_type, "sequence": manager.next_seq(), "payload": payload}
)
except Exception:
pass
async def _dash_heartbeat(conn: DashboardConnection, manager: DashboardManager) -> None:
try:
while True:
await asyncio.sleep(HEARTBEAT_INTERVAL_SECONDS)
if time.time() - conn.last_ack > HEARTBEAT_TIMEOUT_SECONDS:
try:
await conn.websocket.close(code=1001, reason="Heartbeat timeout")
except Exception:
pass
break
conn._hb_id += 1
manager._enqueue(conn, "heartbeat", {"id": conn._hb_id}, critical=True)
except Exception:
pass
dashboard_mgr = DashboardManager()
def _origin_host(value: Optional[str]) -> Optional[str]:
if not value:
return None
v = value.strip()
if not v:
return None
try:
parsed = urlparse(v if "://" in v else f"//{v}")
return (parsed.hostname or "").lower() or None
except Exception:
return None
def origin_allowed(origin: Optional[str], server_host: Optional[str] = None) -> bool:
if not origin:
return True
host = _origin_host(origin)
if not host:
return False
if host in ("localhost", "127.0.0.1", "::1"):
return True
expected = _origin_host(PLATFORM_CTX.public_base_url)
if expected and host == expected:
return True
if server_host:
sh = _origin_host(server_host)
if sh and host == sh:
return True
if (
host.endswith(".up.railway.app")
or host.endswith(".railway.app")
or host.endswith("app.github.dev")
):
return True
return False
def platform_payload(ctx: Optional[PlatformContext] = None) -> dict:
ctx = ctx or PLATFORM_CTX
return {
"id": ctx.platform.value,
"name": ctx.display_name,
"isCodespaces": ctx.is_codespaces,
"persistenceMode": ctx.persistence_mode,
"publicBaseUrl": ctx.public_base_url,
"transport": "WebSocket",
"wsPath": "/ws/{client_id}",
"capabilities": {
"websocketGateway": ctx.capabilities.websocket_gateway,
"subscriptionLinks": ctx.capabilities.subscription_links,
"relayTools": ctx.capabilities.relay_tools,
"persistentStorage": ctx.capabilities.persistent_storage,
"codespacesMetadata": ctx.capabilities.codespaces_metadata,
},
}
def theme_payload(theme: Optional[ThemeTokens] = None) -> dict:
theme = theme or PLATFORM_CTX.theme
return {
"accent": theme.accent,
"accentHover": theme.accent_hover,
"accentBackground": theme.accent_background,
"success": theme.success,
}
async def expose_codespace_port() -> None:
if not PLATFORM_CTX.is_codespaces:
return
name = os.environ.get("CODESPACE_NAME", "")
if not name:
return
port = PLATFORM_CTX.bind_port
try:
proc = await asyncio.create_subprocess_exec(
"gh", "codespace", "ports", "visibility",
f"{port}:public", "-c", name,
stdout=asyncio.subprocess.DEVNULL,
stderr=asyncio.subprocess.DEVNULL,
)
await asyncio.wait_for(proc.wait(), timeout=20)
except Exception:
pass
@asynccontextmanager
async def lifespan(app: FastAPI):
await STATE_MGR.init()
add_log(f"{APP_TITLE} gateway listening on port {PLATFORM_CTX.bind_port}")
add_log(f"Platform: {PLATFORM_CTX.display_name} ({PLATFORM_CTX.platform.value})")
add_log(f"Persistence: {PLATFORM_CTX.persistence_mode}")
add_log("Transport: VLESS over WebSocket only")
tasks = [
asyncio.create_task(telemetry_loop()),
asyncio.create_task(persist_loop()),
asyncio.create_task(session_cleanup_loop()),
asyncio.create_task(expose_codespace_port()),
]
yield
for t in tasks:
t.cancel()
await STATE_MGR.persist()
add_log(f"{APP_TITLE} gateway stopped")