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nim-codex
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nim-codex/codex/conf.nim

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## Nim-Codex
## Copyright (c) 2021 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
import pkg/upraises
push: {.upraises: [].}
import std/os
import std/terminal
import std/options
import std/strutils
import std/typetraits
import pkg/chronicles
import pkg/chronicles/topics_registry
import pkg/confutils/defs
import pkg/confutils/std/net
import pkg/metrics
import pkg/metrics/chronos_httpserver
import pkg/stew/shims/net as stewnet
import pkg/libp2p
import pkg/ethers
import ./discovery
import ./stores/cachestore
export DefaultCacheSizeMiB, net
type
StartUpCommand* {.pure.} = enum
noCommand,
initNode
LogKind* = enum
Auto = "auto"
Colors = "colors"
NoColors = "nocolors"
Json = "json"
None = "none"
CodexConf* = object
logLevel* {.
defaultValue: LogLevel.INFO
desc: "Sets the log level",
name: "log-level" }: LogLevel
logFormat* {.
hidden
desc: "Specifies what kind of logs should be written to stdout (auto, colors, nocolors, json)"
defaultValueDesc: "auto"
defaultValue: LogKind.Auto
name: "log-format" }: LogKind
metricsEnabled* {.
desc: "Enable the metrics server"
defaultValue: false
name: "metrics" }: bool
metricsAddress* {.
desc: "Listening address of the metrics server"
defaultValue: ValidIpAddress.init("127.0.0.1")
defaultValueDesc: "127.0.0.1"
name: "metrics-address" }: ValidIpAddress
metricsPort* {.
desc: "Listening HTTP port of the metrics server"
defaultValue: 8008
name: "metrics-port" }: Port
dataDir* {.
desc: "The directory where codex will store configuration and data."
defaultValue: defaultDataDir()
defaultValueDesc: ""
abbr: "d"
name: "data-dir" }: OutDir
case cmd* {.
command
defaultValue: noCommand }: StartUpCommand
of noCommand:
listenPorts* {.
desc: "Specifies one or more listening ports for the node to listen on."
defaultValue: @[Port(0)]
defaultValueDesc: "0"
abbr: "l"
name: "listen-port" }: seq[Port]
# TODO We should have two options: the listen IP and the public IP
# Currently, they are tied together, so we can't be discoverable
# behind a NAT
listenIp* {.
desc: "The public IP"
defaultValue: ValidIpAddress.init("0.0.0.0")
defaultValueDesc: "0.0.0.0"
abbr: "i"
name: "listen-ip" }: ValidIpAddress
discoveryPort* {.
desc: "Specify the discovery (UDP) port"
defaultValue: Port(8090)
defaultValueDesc: "8090"
name: "udp-port" }: Port
netPrivKeyFile* {.
desc: "Source of network (secp256k1) private key file (random|<path>)"
defaultValue: "random"
name: "net-privkey" }: string
bootstrapNodes* {.
desc: "Specifies one or more bootstrap nodes to use when connecting to the network."
abbr: "b"
name: "bootstrap-node" }: seq[SignedPeerRecord]
maxPeers* {.
desc: "The maximum number of peers to connect to"
defaultValue: 160
name: "max-peers" }: int
agentString* {.
defaultValue: "Codex"
desc: "Node agent string which is used as identifier in network"
name: "agent-string" }: string
apiPort* {.
desc: "The REST Api port",
defaultValue: 8080
defaultValueDesc: "8080"
name: "api-port"
abbr: "p" }: int
cacheSize* {.
desc: "The size in MiB of the block cache, 0 disables the cache"
defaultValue: DefaultCacheSizeMiB
defaultValueDesc: $DefaultCacheSizeMiB
name: "cache-size"
abbr: "c" }: Natural
persistence* {.
desc: "Enables persistence mechanism, requires an Ethereum node"
defaultValue: false
name: "persistence"
.}: bool
ethProvider* {.
desc: "The URL of the JSON-RPC API of the Ethereum node"
defaultValue: "ws://localhost:8545"
name: "eth-provider"
.}: string
ethAccount* {.
desc: "The Ethereum account that is used for storage contracts"
defaultValue: EthAddress.none
name: "eth-account"
.}: Option[EthAddress]
ethDeployment* {.
desc: "The json file describing the contract deployment"
defaultValue: string.none
name: "eth-deployment"
.}: Option[string]
of initNode:
discard
EthAddress* = ethers.Address
const
gitRevision* = strip(staticExec("git rev-parse --short HEAD"))[0..5]
nimBanner* = staticExec("nim --version | grep Version")
#TODO add versionMajor, Minor & Fix when we switch to semver
codexVersion* = gitRevision
codexFullVersion* =
"Codex build " & codexVersion & "\p" &
nimBanner
proc defaultDataDir*(): string =
let dataDir = when defined(windows):
"AppData" / "Roaming" / "Codex"
elif defined(macosx):
"Library" / "Application Support" / "Codex"
else:
".cache" / "codex"
getHomeDir() / dataDir
func parseCmdArg*(T: type MultiAddress, input: TaintedString): T
{.raises: [ValueError, LPError, Defect].} =
MultiAddress.init($input).tryGet()
proc parseCmdArg*(T: type SignedPeerRecord, uri: TaintedString): T =
var res: SignedPeerRecord
try:
if not res.fromURI(uri):
warn "Invalid SignedPeerRecord uri", uri=uri
quit QuitFailure
except CatchableError as exc:
warn "Invalid SignedPeerRecord uri", uri=uri, error=exc.msg
quit QuitFailure
res
func parseCmdArg*(T: type EthAddress, address: TaintedString): T =
EthAddress.init($address).get()
# no idea why confutils needs this:
proc completeCmdArg*(T: type EthAddress; val: TaintedString): seq[string] =
discard
# silly chronicles, colors is a compile-time property
proc stripAnsi(v: string): string =
var
res = newStringOfCap(v.len)
i: int
while i < v.len:
let c = v[i]
if c == '\x1b':
var
x = i + 1
found = false
while x < v.len: # look for [..m
let c2 = v[x]
if x == i + 1:
if c2 != '[':
break
else:
if c2 in {'0'..'9'} + {';'}:
discard # keep looking
elif c2 == 'm':
i = x + 1
found = true
break
else:
break
inc x
if found: # skip adding c
continue
res.add c
inc i
res
proc setupLogging*(conf: CodexConf) =
when defaultChroniclesStream.outputs.type.arity != 2:
warn "Logging configuration options not enabled in the current build"
else:
proc noOutput(logLevel: LogLevel, msg: LogOutputStr) = discard
proc writeAndFlush(f: File, msg: LogOutputStr) =
try:
f.write(msg)
f.flushFile()
except IOError as err:
logLoggingFailure(cstring(msg), err)
proc stdoutFlush(logLevel: LogLevel, msg: LogOutputStr) =
writeAndFlush(stdout, msg)
proc noColorsFlush(logLevel: LogLevel, msg: LogOutputStr) =
writeAndFlush(stdout, stripAnsi(msg))
defaultChroniclesStream.outputs[1].writer = noOutput
defaultChroniclesStream.outputs[0].writer =
case conf.logFormat:
of LogKind.Auto:
if isatty(stdout):
stdoutFlush
else:
noColorsFlush
of LogKind.Colors: stdoutFlush
of LogKind.NoColors: noColorsFlush
of LogKind.Json:
defaultChroniclesStream.outputs[1].writer = stdoutFlush
noOutput
of LogKind.None:
noOutput
setLogLevel(conf.logLevel)
proc setupMetrics*(config: CodexConf) =
if config.metricsEnabled:
let metricsAddress = config.metricsAddress
notice "Starting metrics HTTP server",
url = "http://" & $metricsAddress & ":" & $config.metricsPort & "/metrics"
try:
startMetricsHttpServer($metricsAddress, config.metricsPort)
except CatchableError as exc:
raiseAssert exc.msg
except Exception as exc:
raiseAssert exc.msg # TODO fix metrics
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