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"""
MeshBay Node configuration.
Config file: ~/.config/meshbay/node.toml
All values have sensible defaults and can be overridden by env vars
prefixed with MESHBAY_ (e.g. MESHBAY_HUB_URL).
"""
import os
from dataclasses import dataclass, field
from pathlib import Path
try:
import tomllib # Python 3.11+
except ImportError:
import tomli as tomllib # type: ignore[no-redef]
DEFAULT_CONFIG_PATH = Path.home() / ".config" / "meshbay" / "node.toml"
EXAMPLE_CONFIG = """\
# MeshBay Node configuration — multi-group example
# See: https://meshbay.org/docs/node-config
[hub]
url = "https://meshbay.org"
username = "myusername"
[node]
port = 19000 # TCP+TLS (MNP v1)
quic_port = 19010 # QUIC (MNP v2)
http_port = 19001 # HTTP file API (public content)
ui_port = 18000 # local web UI
# Multiple groups — each with its own directory and ports
[[groups]]
id = "" # set after joining
name = "My Media"
shared_dir = "/home/user/Media"
port = 19000
quic_port = 19010
http_port = 19001
[[groups]]
id = ""
name = "Public Archive"
shared_dir = "/home/user/Archive"
port = 19002
quic_port = 19012
http_port = 19003
visibility = "public"
[keystore]
# unlock_file = "~/.config/meshbay/unlock.key"
# or set MESHBAY_UNLOCK_KEY env var
"""
@dataclass
class HubConfig:
url: str = "https://meshbay.org"
username: str = ""
password: str = "" # loaded from keystore or env; never written to TOML
@dataclass
class NodeConfig:
port: int = 19000
quic_port: int = 19010
http_port: int = 19001
ui_port: int = 18000
@dataclass
class GroupConfig:
id: str = ""
name: str = ""
shared_dir: str = ""
visibility: str = "private" # public|private
port: int = 19000 # TCP+TLS MNP port for this group
quic_port: int = 19010 # QUIC MNP port
http_port: int = 19001 # HTTP file API port
@dataclass
class KeystoreConfig:
path: Path = field(default_factory=lambda: DEFAULT_CONFIG_PATH.parent / "keystore.enc")
unlock_file: Path | None = None
@dataclass
class Config:
hub: HubConfig = field(default_factory=HubConfig)
node: NodeConfig = field(default_factory=NodeConfig)
groups: list[GroupConfig] = field(default_factory=list)
keystore: KeystoreConfig = field(default_factory=KeystoreConfig)
data_dir: Path = field(default_factory=lambda: Path.home() / ".local" / "share" / "meshbay")
# Back-compat: single-group access
@property
def group(self) -> GroupConfig:
return self.groups[0] if self.groups else GroupConfig()
def load_config(path: Path = DEFAULT_CONFIG_PATH) -> Config:
"""
Load config from TOML file. Supports both single [group] and
multiple [[groups]] sections. Env vars override file values.
"""
cfg = Config()
if path.exists():
raw = tomllib.loads(path.read_text())
hub = raw.get("hub", {})
cfg.hub.url = hub.get("url", cfg.hub.url)
cfg.hub.username = hub.get("username", cfg.hub.username)
nd = raw.get("node", {})
cfg.node.port = nd.get("port", cfg.node.port)
cfg.node.quic_port = nd.get("quic_port", cfg.node.quic_port)
cfg.node.http_port = nd.get("http_port", cfg.node.http_port)
cfg.node.ui_port = nd.get("ui_port", cfg.node.ui_port)
# Multi-group: [[groups]] array
if "groups" in raw:
for g in raw["groups"]:
cfg.groups.append(GroupConfig(
id=g.get("id", ""),
name=g.get("name", ""),
shared_dir=g.get("shared_dir", ""),
visibility=g.get("visibility", "private"),
port=g.get("port", cfg.node.port),
quic_port=g.get("quic_port", cfg.node.quic_port),
http_port=g.get("http_port", cfg.node.http_port),
))
# Back-compat: single [group] section
elif "group" in raw:
grp = raw["group"]
cfg.groups.append(GroupConfig(
id=grp.get("id", ""),
name=grp.get("name", ""),
))
if "data_dir" in raw:
cfg.data_dir = Path(raw["data_dir"]).expanduser().resolve()
ks = raw.get("keystore", {})
if "path" in ks:
cfg.keystore.path = Path(ks["path"]).expanduser()
if "unlock_file" in ks:
cfg.keystore.unlock_file = Path(ks["unlock_file"]).expanduser()
# Env var overrides
if url := os.environ.get("MESHBAY_HUB_URL"):
cfg.hub.url = url
if user := os.environ.get("MESHBAY_USERNAME"):
cfg.hub.username = user
if pwd := os.environ.get("MESHBAY_PASSWORD"):
cfg.hub.password = pwd
if port := os.environ.get("MESHBAY_PORT"):
cfg.node.port = int(port)
return cfg
def write_example_config(path: Path = DEFAULT_CONFIG_PATH) -> None:
"""Write an example config file if none exists."""
if not path.exists():
path.parent.mkdir(parents=True, exist_ok=True)
path.write_text(EXAMPLE_CONFIG)
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