1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
"""
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
# See: https://meshbay.org/docs/node-config
[hub]
url = "http://meshbay.org"
username = "myusername"
# password stored separately via keystore
[node]
port = 19000
ui_port = 18000
shared_dirs = ["/home/user/MeshBay"]
[group]
id = "" # set after joining a group
name = ""
[keystore]
# unlock_file = "~/.config/meshbay/unlock.key"
# or set MESHBAY_UNLOCK_KEY env var
"""
@dataclass
class HubConfig:
url: str = "http://meshbay.org"
username: str = ""
password: str = "" # loaded from keystore or env; never written to TOML
@dataclass
class NodeConfig:
port: int = 19000
ui_port: int = 18000
shared_dirs: list[str] = field(default_factory=list)
@dataclass
class GroupConfig:
id: str = ""
name: str = ""
@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)
group: GroupConfig = field(default_factory=GroupConfig)
keystore: KeystoreConfig = field(default_factory=KeystoreConfig)
def load_config(path: Path = DEFAULT_CONFIG_PATH) -> Config:
"""
Load config from TOML file. Missing file returns defaults.
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.ui_port = nd.get("ui_port", cfg.node.ui_port)
cfg.node.shared_dirs = nd.get("shared_dirs", cfg.node.shared_dirs)
grp = raw.get("group", {})
cfg.group.id = grp.get("id", cfg.group.id)
cfg.group.name = grp.get("name", cfg.group.name)
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)
|