multi: replace standalone gRPC web proxy with unified binary

This commit is contained in:
Oliver Gugger 2020-05-26 16:30:26 +02:00
parent e88a9bf482
commit b96b4977f0
No known key found for this signature in database
GPG key ID: 8E4256593F177720
10 changed files with 1286 additions and 248 deletions

20
cmd/shushtar/main.go Normal file
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@ -0,0 +1,20 @@
package main
import (
"fmt"
"os"
"github.com/jessevdk/go-flags"
"github.com/lightninglabs/shushtar"
)
// main starts the shushtar application.
func main() {
err := shushtar.New().Run()
if e, ok := err.(*flags.Error); err != nil &&
(!ok || e.Type != flags.ErrHelp) {
_, _ = fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}

197
config.go
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@ -1,42 +1,181 @@
package main
package shushtar
import (
"crypto/tls"
"fmt"
"net"
"os"
"path/filepath"
"strings"
"github.com/jessevdk/go-flags"
"github.com/lightninglabs/faraday"
"github.com/lightninglabs/loop/loopd"
"github.com/lightningnetwork/lnd"
"github.com/lightningnetwork/lnd/build"
"github.com/lightningnetwork/lnd/cert"
"github.com/lightningnetwork/lnd/lncfg"
"github.com/mwitkow/go-conntrack/connhelpers"
)
var (
defaultHTTPSListen = "localhost:8443"
defaultLndHost = "localhost:10009"
defaultLoopHost = "localhost:10010"
defaultTLSCertPath = "https.cert"
defaultTLSKeyPath = "https.key"
)
type config struct {
HTTPSListen string `long:"httpslisten" description:"host:port to listen for incoming HTTP/2 connections on"`
LNDHost string `long:"lndhost" description:"host:port that LND listens for RPC connections on"`
LoopHost string `long:"loophost" description:"host:port that Loop listens for RPC connections on"`
TLSCertPath string `long:"tlscertpath" description:"path to the TLS cert to use for HTTPS requests"`
TLSKeyPath string `long:"tlskeypath" description:"path to the TLS key to use for HTTPS requests"`
// Config is the main configuration struct of shushtar. It contains all config
// items of its enveloping subservers, each prefixed with their daemon's short
// name.
type Config struct {
HTTPSListen string `long:"httpslisten" description:"host:port to listen for incoming HTTP/2 connections on"`
Lnd *lnd.Config `group:"lnd" namespace:"lnd"`
Faraday *faraday.Config `group:"faraday" namespace:"faraday"`
Loop *loopd.Config `group:"loop" namespace:"loop"`
}
// loadConfig starts with a skeleton default config, and reads in user provided
// configuration from the command line. It does not provide a full set of
// defaults or validate user input.
func loadConfig() (*config, error) {
// Start with a default config.
config := &config{
HTTPSListen: defaultHTTPSListen,
LNDHost: defaultLndHost,
LoopHost: defaultLoopHost,
TLSCertPath: defaultTLSCertPath,
TLSKeyPath: defaultTLSKeyPath,
// loadLndConfig loads and sanitizes the lnd main configuration and hooks up all
// loggers.
func loadLndConfig(preCfg *Config) (*lnd.Config, error) {
// Show the version and exit if the version flag was specified.
appName := filepath.Base(os.Args[0])
appName = strings.TrimSuffix(appName, filepath.Ext(appName))
usageMessage := fmt.Sprintf("Use %s -h to show usage", appName)
if preCfg.Lnd.ShowVersion {
fmt.Println(appName, "version", build.Version(),
"commit="+build.Commit)
os.Exit(0)
}
// Parse command line options to obtain user specified values.
if _, err := flags.Parse(config); err != nil {
// If the config file path has not been modified by the user, then we'll
// use the default config file path. However, if the user has modified
// their lnddir, then we should assume they intend to use the config
// file within it.
configFileDir := lnd.CleanAndExpandPath(preCfg.Lnd.LndDir)
configFilePath := lnd.CleanAndExpandPath(preCfg.Lnd.ConfigFile)
if configFileDir != lnd.DefaultLndDir {
if configFilePath == lnd.DefaultConfigFile {
configFilePath = filepath.Join(
configFileDir, lncfg.DefaultConfigFilename,
)
}
}
// Next, load any additional configuration options from the file.
var configFileError error
cfg := preCfg
if err := flags.IniParse(configFilePath, cfg); err != nil {
// If it's a parsing related error, then we'll return
// immediately, otherwise we can proceed as possibly the config
// file doesn't exist which is OK.
if _, ok := err.(*flags.IniError); ok {
return nil, err
}
configFileError = err
}
// Finally, parse the remaining command line options again to ensure
// they take precedence.
if _, err := flags.Parse(cfg); err != nil {
return nil, err
}
return config, nil
// Make sure everything we just loaded makes sense.
cleanCfg, err := lnd.ValidateConfig(*cfg.Lnd, usageMessage)
if err != nil {
return nil, err
}
// With the validated config obtained, we now know that the root logging
// system of lnd is initialized and we can hook up our own loggers now.
SetupLoggers(cleanCfg.LogWriter)
// Warn about missing config file only after all other configuration is
// done. This prevents the warning on help messages and invalid options.
// Note this should go directly before the return.
if configFileError != nil {
log.Warnf("%v", configFileError)
}
return cleanCfg, nil
}
func getNetwork(cfg *lncfg.Chain) (string, error) {
switch {
case cfg.MainNet:
return "mainnet", nil
case cfg.TestNet3:
return "testnet", nil
case cfg.RegTest:
return "regtest", nil
case cfg.SimNet:
return "simnet", nil
default:
return "", fmt.Errorf("no network selected")
}
}
func buildTLSConfigForHttp2(config *lnd.Config) (*tls.Config, error) {
tlsCert, _, err := cert.LoadCert(config.TLSCertPath, config.TLSKeyPath)
if err != nil {
return nil, fmt.Errorf("failed reading TLS server keys: %v",
err)
}
tlsConfig := cert.TLSConfFromCert(tlsCert)
tlsConfig.CipherSuites = append(
tlsConfig.CipherSuites,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
)
tlsConfig, err = connhelpers.TlsConfigWithHttp2Enabled(tlsConfig)
if err != nil {
return nil, fmt.Errorf("can't configure h2 handling: %v", err)
}
return tlsConfig, nil
}
// onDemandListener is a net.Listener that only actually starts to listen on a
// network port once the Accept method is called.
type onDemandListener struct {
addr net.Addr
lis net.Listener
}
// Accept waits for and returns the next connection to the listener.
func (l *onDemandListener) Accept() (net.Conn, error) {
if l.lis == nil {
var err error
l.lis, err = net.Listen(parseNetwork(l.addr), l.addr.String())
if err != nil {
return nil, err
}
}
return l.lis.Accept()
}
// Close closes the listener.
// Any blocked Accept operations will be unblocked and return errors.
func (l *onDemandListener) Close() error {
return l.lis.Close()
}
// Addr returns the listener's network address.
func (l *onDemandListener) Addr() net.Addr {
return l.addr
}
// parseNetwork parses the network type of the given address.
func parseNetwork(addr net.Addr) string {
switch addr := addr.(type) {
// TCP addresses resolved through net.ResolveTCPAddr give a default
// network of "tcp", so we'll map back the correct network for the given
// address. This ensures that we can listen on the correct interface
// (IPv4 vs IPv6).
case *net.TCPAddr:
if addr.IP.To4() != nil {
return "tcp4"
}
return "tcp6"
default:
return addr.Network()
}
}

28
go.mod
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@ -1,21 +1,35 @@
module github.com/lightninglabs/shushtar
go 1.14
require (
github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f
github.com/desertbit/timer v0.0.0-20180107155436-c41aec40b27f // indirect
github.com/gorilla/websocket v1.4.2 // indirect
github.com/grpc-ecosystem/go-grpc-middleware v1.2.0
github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
github.com/grpc-ecosystem/grpc-gateway v1.12.2
github.com/improbable-eng/grpc-web v0.12.0
github.com/jessevdk/go-flags v1.4.0
github.com/jpillora/backoff v1.0.0 // indirect
github.com/lightninglabs/faraday v0.1.0-alpha.0.20200518080657-d3726a59507c
github.com/lightninglabs/loop v0.6.2-beta.0.20200528104150-c281cab8a036
github.com/lightningnetwork/lnd v0.10.1-beta.rc1
github.com/lightningnetwork/lnd/cert v1.0.2
github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f
github.com/mwitkow/grpc-proxy v0.0.0-20181017164139-0f1106ef9c76
github.com/prometheus/client_golang v1.5.1 // indirect
github.com/rakyll/statik v0.1.7
github.com/rs/cors v1.7.0 // indirect
github.com/sirupsen/logrus v1.5.0
golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e
golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e // indirect
golang.org/x/sys v0.0.0-20200406155108-e3b113bbe6a4 // indirect
google.golang.org/grpc v1.28.0
gopkg.in/macaroon-bakery.v2 v2.1.0
gopkg.in/macaroon.v2 v2.1.0
)
// Manually solve the conflict between loop's lndclient version of lnd and what
// we explicitly need for the unified binary to work.
replace github.com/lightningnetwork/lnd => github.com/lightningnetwork/lnd v0.10.0-beta.rc6.0.20200528052558-24c865450a77
// Needed because lnd now imports the etcd client which doesn't follow the go
// mod guidelines. Unfortunately replace directives from dependency projects
// aren't picked up so we need to specify this here and in lnd.
replace github.com/coreos/go-systemd => github.com/coreos/go-systemd/v22 v22.0.0
go 1.13

286
go.sum
View file

@ -1,106 +1,254 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
git.schwanenlied.me/yawning/bsaes.git v0.0.0-20180720073208-c0276d75487e h1:F2x1bq7RaNCIuqYpswggh1+c1JmwdnkHNC9wy1KDip0=
git.schwanenlied.me/yawning/bsaes.git v0.0.0-20180720073208-c0276d75487e/go.mod h1:BWqTsj8PgcPriQJGl7el20J/7TuT1d/hSyFDXMEpoEo=
github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/NebulousLabs/fastrand v0.0.0-20181203155948-6fb6489aac4e h1:n+DcnTNkQnHlwpsrHoQtkrJIO7CBx029fw6oR4vIob4=
github.com/NebulousLabs/fastrand v0.0.0-20181203155948-6fb6489aac4e/go.mod h1:Bdzq+51GR4/0DIhaICZEOm+OHvXGwwB2trKZ8B4Y6eQ=
github.com/NebulousLabs/go-upnp v0.0.0-20180202185039-29b680b06c82 h1:MG93+PZYs9PyEsj/n5/haQu2gK0h4tUtSy9ejtMwWa0=
github.com/NebulousLabs/go-upnp v0.0.0-20180202185039-29b680b06c82/go.mod h1:GbuBk21JqF+driLX3XtJYNZjGa45YDoa9IqCTzNSfEc=
github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
github.com/Yawning/aez v0.0.0-20180114000226-4dad034d9db2 h1:2be4ykKKov3M1yISM2E8gnGXZ/N2SsPawfnGiXxaYEU=
github.com/Yawning/aez v0.0.0-20180114000226-4dad034d9db2/go.mod h1:9pIqrY6SXNL8vjRQE5Hd/OL5GyK/9MrGUWs87z/eFfk=
github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da h1:KjTM2ks9d14ZYCvmHS9iAKVt9AyzRSqNU1qabPih5BY=
github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da/go.mod h1:eHEWzANqSiWQsof+nXEI9bUVUyV6F53Fp89EuCh2EAA=
github.com/aead/siphash v1.0.1 h1:FwHfE/T45KPKYuuSAKyyvE+oPWcaQ+CUmFW0bPlM+kg=
github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/antihax/optional v0.0.0-20180407024304-ca021399b1a6/go.mod h1:V8iCPQYkqmusNa815XgQio277wI47sdRh1dUOLdyC6Q=
github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/btcsuite/btcd v0.20.1-beta h1:Ik4hyJqN8Jfyv3S4AGBOmyouMsYE3EdYODkMbQjwPGw=
github.com/btcsuite/btcd v0.0.0-20190629003639-c26ffa870fd8/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
github.com/btcsuite/btcd v0.0.0-20190824003749-130ea5bddde3/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
github.com/btcsuite/btcd v0.20.1-beta.0.20200513120220-b470eee47728/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
github.com/btcsuite/btcd v0.20.1-beta.0.20200515232429-9f0179fd2c46 h1:QyTpiR5nQe94vza2qkvf7Ns8XX2Rjh/vdIhO3RzGj4o=
github.com/btcsuite/btcd v0.20.1-beta.0.20200515232429-9f0179fd2c46/go.mod h1:Yktc19YNjh/Iz2//CX0vfRTS4IJKM/RKO5YZ9Fn+Pgo=
github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f h1:bAs4lUbRJpnnkd9VhRV3jjAVU7DJVjMaK+IsvSeZvFo=
github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA=
github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d/go.mod h1:+5NJ2+qvTyV9exUAL/rxXi3DcLg2Ts+ymUAY5y4NvMg=
github.com/btcsuite/btcutil v1.0.1 h1:GKOz8BnRjYrb/JTKgaOk+zh26NWNdSNvdvv0xoAZMSA=
github.com/btcsuite/btcutil v1.0.1/go.mod h1:j9HUFwoQRsZL3V4n+qG+CUnEGHOarIxfC3Le2Yhbcts=
github.com/btcsuite/btcutil v1.0.2 h1:9iZ1Terx9fMIOtq1VrwdqfsATL9MC2l8ZrUY6YZ2uts=
github.com/btcsuite/btcutil v1.0.2/go.mod h1:j9HUFwoQRsZL3V4n+qG+CUnEGHOarIxfC3Le2Yhbcts=
github.com/btcsuite/btcutil/psbt v1.0.2 h1:gCVY3KxdoEVU7Q6TjusPO+GANIwVgr9yTLqM+a6CZr8=
github.com/btcsuite/btcutil/psbt v1.0.2/go.mod h1:LVveMu4VaNSkIRTZu2+ut0HDBRuYjqGocxDMNS1KuGQ=
github.com/btcsuite/btcwallet v0.11.1-0.20200515224913-e0e62245ecbe h1:0m9uXDcnUc3Fv72635O/MfLbhbW+0hfSVgRiWezpkHU=
github.com/btcsuite/btcwallet v0.11.1-0.20200515224913-e0e62245ecbe/go.mod h1:9+AH3V5mcTtNXTKe+fe63fDLKGOwQbZqmvOVUef+JFE=
github.com/btcsuite/btcwallet/wallet/txauthor v1.0.0 h1:KGHMW5sd7yDdDMkCZ/JpP0KltolFsQcB973brBnfj4c=
github.com/btcsuite/btcwallet/wallet/txauthor v1.0.0/go.mod h1:VufDts7bd/zs3GV13f/lXc/0lXrPnvxD/NvmpG/FEKU=
github.com/btcsuite/btcwallet/wallet/txrules v1.0.0 h1:2VsfS0sBedcM5KmDzRMT3+b6xobqWveZGvjb+jFez5w=
github.com/btcsuite/btcwallet/wallet/txrules v1.0.0/go.mod h1:UwQE78yCerZ313EXZwEiu3jNAtfXj2n2+c8RWiE/WNA=
github.com/btcsuite/btcwallet/wallet/txsizes v1.0.0 h1:6DxkcoMnCPY4E9cUDPB5tbuuf40SmmMkSQkoE8vCT+s=
github.com/btcsuite/btcwallet/wallet/txsizes v1.0.0/go.mod h1:pauEU8UuMFiThe5PB3EO+gO5kx87Me5NvdQDsTuq6cs=
github.com/btcsuite/btcwallet/walletdb v1.0.0/go.mod h1:bZTy9RyYZh9fLnSua+/CD48TJtYJSHjjYcSaszuxCCk=
github.com/btcsuite/btcwallet/walletdb v1.2.0/go.mod h1:9cwc1Yyg4uvd4ZdfdoMnALji+V9gfWSMfxEdLdR5Vwc=
github.com/btcsuite/btcwallet/walletdb v1.3.1 h1:lW1Ac3F1jJY4K11P+YQtRNcP5jFk27ASfrV7C6mvRU0=
github.com/btcsuite/btcwallet/walletdb v1.3.1/go.mod h1:9cwc1Yyg4uvd4ZdfdoMnALji+V9gfWSMfxEdLdR5Vwc=
github.com/btcsuite/btcwallet/wtxmgr v1.0.0/go.mod h1:vc4gBprll6BP0UJ+AIGDaySoc7MdAmZf8kelfNb8CFY=
github.com/btcsuite/btcwallet/wtxmgr v1.1.1-0.20200515224913-e0e62245ecbe h1:yQbJVYfsKbdqDQNLxd4hhiLSiMkIygefW5mSHMsdKpc=
github.com/btcsuite/btcwallet/wtxmgr v1.1.1-0.20200515224913-e0e62245ecbe/go.mod h1:OwC0W0HhUszbWdvJvH6xvgabKSJ0lXl11YbmmqF9YXQ=
github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd h1:R/opQEbFEy9JGkIguV40SvRY1uliPX8ifOvi6ICsFCw=
github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd/go.mod h1:HHNXQzUsZCxOoE+CPiyCTO6x34Zs86zZUiwtpXoGdtg=
github.com/btcsuite/golangcrypto v0.0.0-20150304025918-53f62d9b43e8/go.mod h1:tYvUd8KLhm/oXvUeSEs2VlLghFjQt9+ZaF9ghH0JNjc=
github.com/btcsuite/goleveldb v0.0.0-20160330041536-7834afc9e8cd/go.mod h1:F+uVaaLLH7j4eDXPRvw78tMflu7Ie2bzYOH4Y8rRKBY=
github.com/btcsuite/goleveldb v1.0.0 h1:Tvd0BfvqX9o823q1j2UZ/epQo09eJh6dTcRp79ilIN4=
github.com/btcsuite/goleveldb v1.0.0/go.mod h1:QiK9vBlgftBg6rWQIj6wFzbPfRjiykIEhBH4obrXJ/I=
github.com/btcsuite/snappy-go v0.0.0-20151229074030-0bdef8d06723/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg3lh6TiUghc=
github.com/btcsuite/snappy-go v1.0.0 h1:ZxaA6lo2EpxGddsA8JwWOcxlzRybb444sgmeJQMJGQE=
github.com/btcsuite/snappy-go v1.0.0/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg3lh6TiUghc=
github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792 h1:R8vQdOQdZ9Y3SkEwmHoWBmX1DNXhXZqlTpq6s4tyJGc=
github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792/go.mod h1:ghJtEyQwv5/p4Mg4C0fgbePVuGr935/5ddU9Z3TmDRY=
github.com/btcsuite/winsvc v1.0.0/go.mod h1:jsenWakMcC0zFBFurPLEAyrnc/teJEM1O46fmI40EZs=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
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github.com/lightninglabs/protobuf-hex-display v1.3.3-0.20191212020323-b444784ce75d/go.mod h1:KDb67YMzoh4eudnzClmvs2FbiLG9vxISmLApUkCa4uI=
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github.com/lightningnetwork/lnd v0.10.0-beta.rc6.0.20200528052558-24c865450a77 h1:t32xo5P25iCfcGTSuie1HlSKhMjhuT8sgKbrygd6XC8=
github.com/lightningnetwork/lnd v0.10.0-beta.rc6.0.20200528052558-24c865450a77/go.mod h1:kfFdBokXXikGMWmAg7tVKMp5wqbSbUDtvi039Jd0fSM=
github.com/lightningnetwork/lnd/cert v1.0.2 h1:g2rEu+sM2Uyz0bpfuvwri/ks6R/26H5iY1NcGbpDJ+c=
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github.com/lightningnetwork/lnd/queue v1.0.3/go.mod h1:YTkTVZCxz8tAYreH27EO3s8572ODumWrNdYW2E/YKxg=
github.com/lightningnetwork/lnd/queue v1.0.4 h1:8Dq3vxAFSACPy+pKN88oPFhuCpCoAAChPBwa4BJxH4k=
github.com/lightningnetwork/lnd/queue v1.0.4/go.mod h1:YTkTVZCxz8tAYreH27EO3s8572ODumWrNdYW2E/YKxg=
github.com/lightningnetwork/lnd/ticker v1.0.0 h1:S1b60TEGoTtCe2A0yeB+ecoj/kkS4qpwh6l+AkQEZwU=
github.com/lightningnetwork/lnd/ticker v1.0.0/go.mod h1:iaLXJiVgI1sPANIF2qYYUJXjoksPNvGNYowB8aRbpX0=
github.com/ltcsuite/ltcd v0.0.0-20190101042124-f37f8bf35796 h1:sjOGyegMIhvgfq5oaue6Td+hxZuf3tDC8lAPrFldqFw=
github.com/ltcsuite/ltcd v0.0.0-20190101042124-f37f8bf35796/go.mod h1:3p7ZTf9V1sNPI5H8P3NkTFF4LuwMdPl2DodF60qAKqY=
github.com/ltcsuite/ltcutil v0.0.0-20181217130922-17f3b04680b6/go.mod h1:8Vg/LTOO0KYa/vlHWJ6XZAevPQThGH5sufO0Hrou/lA=
github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/mitranim/gow v0.0.0-20200310140433-1453861c60a5 h1:N3/iCEmJnqnS/eiK4Qf/VdzGHGq3NSaSaYWRZ9TcTYA=
github.com/mitranim/gow v0.0.0-20200310140433-1453861c60a5/go.mod h1:Du3tFX2ohe7OugtDEVvBFqFpbAoHZTxv9I/+R7WO9vs=
github.com/miekg/dns v0.0.0-20171125082028-79bfde677fa8 h1:PRMAcldsl4mXKJeRNB/KVNz6TlbS6hk2Rs42PqgU3Ws=
github.com/miekg/dns v0.0.0-20171125082028-79bfde677fa8/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
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github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
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github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
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github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
github.com/onsi/gomega v1.4.1/go.mod h1:C1qb7wdrVGGVU+Z6iS04AVkA3Q65CEZX59MT0QO5uiA=
github.com/onsi/gomega v1.4.3 h1:RE1xgDvH7imwFD45h+u2SgIfERHlS2yNG4DObb5BSKU=
github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
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@ -109,48 +257,91 @@ github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:
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github.com/rs/cors v1.7.0 h1:+88SsELBHx5r+hZ8TCkggzSstaWNbDvThkVK8H6f9ik=
github.com/rs/cors v1.7.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
github.com/shopspring/decimal v1.2.0 h1:abSATXmQEYyShuxI4/vyW3tV1MrKAJzCZ/0zLUXYbsQ=
github.com/shopspring/decimal v1.2.0/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
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github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4=
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github.com/soheilhy/cmux v0.1.4 h1:0HKaf1o97UwFjHH9o5XsHUOF+tqmdA7KEzXLpiyaw0E=
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github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
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github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
github.com/tidwall/pretty v1.0.0/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=
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github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
github.com/tv42/zbase32 v0.0.0-20160707012821-501572607d02 h1:tcJ6OjwOMvExLlzrAVZute09ocAGa7KqOON60++Gz4E=
github.com/tv42/zbase32 v0.0.0-20160707012821-501572607d02/go.mod h1:tHlrkM198S068ZqfrO6S8HsoJq2bF3ETfTL+kt4tInY=
github.com/urfave/cli v1.18.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
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go.etcd.io/bbolt v1.3.3 h1:MUGmc65QhB3pIlaQ5bB4LwqSj6GIonVJXpZiaKNyaKk=
go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
go.mongodb.org/mongo-driver v1.0.3/go.mod h1:u7ryQJ+DOzQmeO7zB6MHyr8jkEQvC8vH7qLUO4lqsUM=
go.uber.org/atomic v1.6.0 h1:Ezj3JGmsOnG1MoRWQkPBsKLe9DwWD9QeXzTRzzldNVk=
go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
go.uber.org/multierr v1.5.0 h1:KCa4XfM8CWFCpxXRGok+Q0SS/0XBhMDbHHGABQLvD2A=
go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee h1:0mgffUl7nfd+FpvXMVz4IDEaUSmT1ysygQC7qYo7sG4=
go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
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golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20180723164146-c126467f60eb/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d h1:2+ZP7EfsZV7Vvmx3TIqSlSzATMkTAKqM14YGFPoSKjI=
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37 h1:cg5LA/zNPRzIXIWSCxQW10Rvpy94aQh3LT/ShoCpkHw=
golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
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golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181106065722-10aee1819953/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190206173232-65e2d4e15006/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20191002035440-2ec189313ef0/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e h1:3G+cUijn7XD+S4eJFddp53Pv7+slrESplyjG25HgL+k=
golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@ -162,44 +353,85 @@ golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJ
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=

128
log.go Normal file
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package shushtar
import (
"github.com/btcsuite/btclog"
"github.com/lightninglabs/faraday"
"github.com/lightninglabs/faraday/dataset"
"github.com/lightninglabs/faraday/fiat"
"github.com/lightninglabs/faraday/frdrpc"
"github.com/lightninglabs/faraday/recommend"
"github.com/lightninglabs/faraday/revenue"
"github.com/lightninglabs/loop"
"github.com/lightninglabs/loop/lndclient"
"github.com/lightninglabs/loop/loopdb"
"github.com/lightninglabs/loop/lsat"
"github.com/lightningnetwork/lnd"
"github.com/lightningnetwork/lnd/build"
"google.golang.org/grpc/grpclog"
)
var (
// log is a logger that is initialized with no output filters. This means the
// package will not perform any logging by default until the caller requests
// it.
log btclog.Logger
)
const (
// Subsystem defines the logging code for this subsystem.
Subsystem = "GRUB"
// GrpcLogSubsystem defines the logging code for the gRPC subsystem.
GrpcLogSubsystem = "GRPC"
// levelDiffToGRPCLogger is the difference in numerical log level
// definitions between the grpclog package and the btclog package.
levelDiffToGRPCLogger = 2
)
// The default amount of logging is none.
func init() {
UseLogger(build.NewSubLogger(Subsystem, nil))
}
// UseLogger uses a specified Logger to output package logging info. This
// should be used in preference to SetLogWriter if the caller is also using
// btclog.
func UseLogger(logger btclog.Logger) {
log = logger
}
// SetupLoggers initializes all package-global logger variables.
func SetupLoggers(root *build.RotatingLogWriter) {
// Add the GrUB logger.
lnd.AddSubLogger(root, Subsystem, UseLogger)
// Add faraday loggers to lnd's root logger.
lnd.AddSubLogger(root, faraday.Subsystem, faraday.UseLogger)
lnd.AddSubLogger(root, recommend.Subsystem, recommend.UseLogger)
lnd.AddSubLogger(root, dataset.Subsystem, dataset.UseLogger)
lnd.AddSubLogger(root, frdrpc.Subsystem, frdrpc.UseLogger)
lnd.AddSubLogger(root, revenue.Subsystem, revenue.UseLogger)
lnd.AddSubLogger(root, fiat.Subsystem, fiat.UseLogger)
// Add loop loggers to lnd's root logger.
lnd.AddSubLogger(root, "LOOPD", loopdb.UseLogger)
lnd.AddSubLogger(root, "LOOP", loop.UseLogger)
lnd.AddSubLogger(root, "LNDC", lndclient.UseLogger)
lnd.AddSubLogger(root, "STORE", loopdb.UseLogger)
lnd.AddSubLogger(root, lsat.Subsystem, lsat.UseLogger)
}
// NewGrpcLogLogger creates a new grpclog compatible logger and attaches it as
// a sub logger to the passed root logger.
func NewGrpcLogLogger(root *build.RotatingLogWriter,
subsystem string) *GrpcLogLogger {
logger := build.NewSubLogger(subsystem, root.GenSubLogger)
lnd.SetSubLogger(root, subsystem, logger)
return &GrpcLogLogger{
Logger: logger,
}
}
// GrpcLogLogger is a wrapper around a btclog logger to make it compatible with
// the grpclog logger package.
type GrpcLogLogger struct {
btclog.Logger
}
func (l GrpcLogLogger) Infoln(args ...interface{}) {
l.Logger.Error(args...)
}
func (l GrpcLogLogger) Warning(args ...interface{}) {
l.Logger.Warn(args...)
}
func (l GrpcLogLogger) Warningln(args ...interface{}) {
l.Logger.Warn(args...)
}
func (l GrpcLogLogger) Warningf(format string, args ...interface{}) {
l.Logger.Warnf(format, args...)
}
func (l GrpcLogLogger) Errorln(args ...interface{}) {
l.Logger.Error(args...)
}
func (l GrpcLogLogger) Fatal(args ...interface{}) {
l.Logger.Critical(args...)
}
func (l GrpcLogLogger) Fatalln(args ...interface{}) {
l.Logger.Critical(args...)
}
func (l GrpcLogLogger) Fatalf(format string, args ...interface{}) {
l.Logger.Criticalf(format, args...)
}
func (l GrpcLogLogger) V(level int) bool {
return level+levelDiffToGRPCLogger >= int(l.Logger.Level())
}
// A compile-time check to make sure our GrpcLogLogger satisfies the
// grpclog.LoggerV2 interface.
var _ grpclog.LoggerV2 = (*GrpcLogLogger)(nil)

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@ -1,88 +0,0 @@
package main
import (
"crypto/tls"
grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
grpc_logrus "github.com/grpc-ecosystem/go-grpc-middleware/logging/logrus"
grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
"github.com/improbable-eng/grpc-web/go/grpcweb"
"github.com/mwitkow/grpc-proxy/proxy"
"github.com/sirupsen/logrus"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/metadata"
)
func buildGrpcProxyServer(logger *logrus.Entry, grpcAddr string, secure bool) *grpcweb.WrappedGrpcServer {
// gRPC-wide changes.
grpc.EnableTracing = true
grpc_logrus.ReplaceGrpcLogger(logger)
// gRPC proxy logic.
backendConn := dialBackendOrFail(grpcAddr, secure)
director := func(ctx context.Context, fullMethodName string) (context.Context, *grpc.ClientConn, error) {
md, _ := metadata.FromIncomingContext(ctx)
outCtx, _ := context.WithCancel(ctx)
mdCopy := md.Copy()
delete(mdCopy, "user-agent")
// If this header is present in the request from the web client,
// the actual connection to the backend will not be established.
// https://github.com/improbable-eng/grpc-web/issues/568
delete(mdCopy, "connection")
outCtx = metadata.NewOutgoingContext(outCtx, mdCopy)
return outCtx, backendConn, nil
}
// Server with logging and monitoring enabled.
grpcServer := grpc.NewServer(
grpc.CustomCodec(proxy.Codec()), // needed for proxy to function.
grpc.UnknownServiceHandler(proxy.TransparentHandler(director)),
// The current maximum receive msg size per https://github.com/grpc/grpc-go/blob/v1.8.2/server.go#L54
grpc.MaxRecvMsgSize(1024*1024*4),
grpc_middleware.WithUnaryServerChain(
grpc_logrus.UnaryServerInterceptor(logger),
grpc_prometheus.UnaryServerInterceptor,
),
grpc_middleware.WithStreamServerChain(
grpc_logrus.StreamServerInterceptor(logger),
grpc_prometheus.StreamServerInterceptor,
),
)
options := []grpcweb.Option{
grpcweb.WithCorsForRegisteredEndpointsOnly(false),
grpcweb.WithOriginFunc(func(origin string) bool {
// allow all CORS requests
return true
}),
}
return grpcweb.WrapServer(grpcServer, options...)
}
func dialBackendOrFail(grpcAddr string, secure bool) *grpc.ClientConn {
opt := []grpc.DialOption{}
opt = append(opt, grpc.WithCodec(proxy.Codec()))
if secure {
tlsConfig := &tls.Config{}
tlsConfig.MinVersion = tls.VersionTLS12
tlsConfig.InsecureSkipVerify = true
opt = append(opt, grpc.WithTransportCredentials(credentials.NewTLS(tlsConfig)))
} else {
opt = append(opt, grpc.WithInsecure())
}
opt = append(opt,
grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(1024*1024*4)),
grpc.WithBackoffMaxDelay(grpc.DefaultBackoffConfig.MaxDelay),
)
logrus.Infof("Dialing backend GRPC server at %s", grpcAddr)
cc, err := grpc.Dial(grpcAddr, opt...)
if err != nil {
logrus.Fatalf("failed dialing backend: %v", err)
}
return cc
}

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shushtar.go Normal file
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package shushtar
import (
"context"
"crypto/tls"
"errors"
"fmt"
"io/ioutil"
"net"
"net/http"
"path/filepath"
"strings"
"sync"
"time"
restProxy "github.com/grpc-ecosystem/grpc-gateway/runtime"
"github.com/improbable-eng/grpc-web/go/grpcweb"
"github.com/jessevdk/go-flags"
"github.com/lightninglabs/faraday"
"github.com/lightninglabs/faraday/frdrpc"
"github.com/lightninglabs/loop/lndclient"
"github.com/lightninglabs/loop/loopd"
"github.com/lightninglabs/loop/looprpc"
"github.com/lightningnetwork/lnd"
"github.com/lightningnetwork/lnd/lnrpc"
"github.com/lightningnetwork/lnd/lntest/wait"
"github.com/lightningnetwork/lnd/macaroons"
"github.com/lightningnetwork/lnd/signal"
"github.com/mwitkow/grpc-proxy/proxy"
"github.com/rakyll/statik/fs"
"google.golang.org/grpc"
"google.golang.org/grpc/backoff"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/metadata"
"gopkg.in/macaroon.v2"
// Import generated go package that contains all static files for the
// UI in a compressed format.
_ "github.com/lightninglabs/shushtar/statik"
)
const (
defaultHTTPSListen = "127.0.0.1:8443"
defaultServerTimeout = 10 * time.Second
defaultStartupTimeout = 5 * time.Second
)
var (
// maxMsgRecvSize is the largest message our REST proxy will receive. We
// set this to 200MiB atm.
maxMsgRecvSize = grpc.MaxCallRecvMsgSize(1 * 1024 * 1024 * 200)
lndDefaultConfig = lnd.DefaultConfig()
faradayDefaultConfig = faraday.DefaultConfig()
loopDefaultConfig = loopd.DefaultConfig()
)
// Shushtar is the main grand unified binary instance. Its task is to start an
// lnd node then start and register external subservers to it.
type Shushtar struct {
cfg *Config
lndAddr string
listenerCfg lnd.ListenerCfg
wg sync.WaitGroup
lndErrChan chan error
lndClient *lndclient.GrpcLndServices
lndGrpcServer *grpc.Server
faradayServer *frdrpc.RPCServer
faradayStarted bool
loopServer *loopd.Daemon
loopStarted bool
grpcWebProxy *grpc.Server
httpServer *http.Server
}
// New creates a new instance of the shushtar daemon.
func New() *Shushtar {
return &Shushtar{
cfg: &Config{
HTTPSListen: defaultHTTPSListen,
Lnd: &lndDefaultConfig,
Faraday: &faradayDefaultConfig,
Loop: &loopDefaultConfig,
},
lndErrChan: make(chan error, 1),
}
}
// Run starts everything and then blocks until either the application is shut
// down or a critical error happens.
func (g *Shushtar) Run() error {
// Pre-parse the command line options to pick up an alternative config
// file.
_, err := flags.Parse(g.cfg)
if err != nil {
return err
}
// Load the configuration, and parse any command line options. This
// function will also set up logging properly.
g.cfg.Lnd, err = loadLndConfig(g.cfg)
if err != nil {
return err
}
// Initiate our listeners. For now, we only support listening on one
// port at a time because we can only pass in one pre-configured RPC
// listener into lnd.
if len(g.cfg.Lnd.RPCListeners) > 1 {
return fmt.Errorf("grub only supports one RPC listener at a " +
"time")
}
rpcAddr := g.cfg.Lnd.RPCListeners[0]
g.listenerCfg = lnd.ListenerCfg{
RPCListener: &lnd.ListenerWithSignal{
Listener: &onDemandListener{addr: rpcAddr},
Ready: make(chan struct{}),
ExternalRPCSubserverCfg: &lnd.RPCSubserverConfig{
Permissions: getSubserverPermissions(),
Registrar: g,
},
ExternalRestRegistrar: g,
},
}
// With TLS enabled by default, we cannot call 0.0.0.0 internally when
// dialing lnd as that IP address isn't in the cert. We need to rewrite
// it to the loopback address.
lndDialAddr := rpcAddr.String()
switch {
case strings.Contains(lndDialAddr, "0.0.0.0"):
lndDialAddr = strings.Replace(
lndDialAddr, "0.0.0.0", "127.0.0.1", 1,
)
case strings.Contains(lndDialAddr, "[::]"):
lndDialAddr = strings.Replace(
lndDialAddr, "[::]", "[::1]", 1,
)
}
g.lndAddr = lndDialAddr
// Some of the subservers' configuration options won't have any effect
// (like the log or lnd options) as they will be taken from lnd's config
// struct. Others we want to force to be the same as lnd so the user
// doesn't have to set them manually, like the network for example.
network, err := getNetwork(g.cfg.Lnd.Bitcoin)
if err != nil {
return err
}
g.cfg.Loop.Network = network
// Create the instances of our subservers now so we can hook them up to
// lnd once it's fully started.
g.faradayServer = frdrpc.NewRPCServer(&frdrpc.Config{})
g.loopServer = loopd.New(g.cfg.Loop, nil)
// Hook interceptor for os signals.
signal.Intercept()
// Call the "real" main in a nested manner so the defers will properly
// be executed in the case of a graceful shutdown.
g.wg.Add(1)
go func() {
defer g.wg.Done()
err := lnd.Main(
g.cfg.Lnd, g.listenerCfg, signal.ShutdownChannel(),
)
if e, ok := err.(*flags.Error); err != nil &&
(!ok || e.Type != flags.ErrHelp) {
log.Errorf("Error running main lnd: %v", err)
g.lndErrChan <- err
return
}
close(g.lndErrChan)
}()
defer func() {
err := g.shutdown()
if err != nil {
log.Errorf("Error shutting down: %v", err)
}
}()
// Wait for lnd to be unlocked, then start all clients.
select {
case <-g.listenerCfg.RPCListener.Ready:
case <-signal.ShutdownChannel():
return errors.New("shutting down")
}
err = g.startSubservers(network)
if err != nil {
log.Errorf("Could not start subservers: %v", err)
return err
}
err = g.startGrpcWebProxy()
if err != nil {
log.Errorf("Could not start gRPC web proxy server: %v", err)
return err
}
// Now block until we receive an error or the main shutdown signal.
select {
case err := <-g.loopServer.ErrChan:
// Loop will shut itself down if an error happens. We don't need
// to try to stop it again.
g.loopStarted = false
log.Errorf("Received critical error from loop, shutting down: "+
"%v", err)
case err := <-g.lndErrChan:
if err != nil {
log.Errorf("Received critical error from lnd, "+
"shutting down: %v", err)
}
case <-signal.ShutdownChannel():
log.Infof("Shutdown signal received")
}
return nil
}
// startSubservers creates an internal connection to lnd and then starts all
// embedded daemons as external subservers that hook into the same gRPC and REST
// servers that lnd started.
func (g *Shushtar) startSubservers(network string) error {
var basicClient lnrpc.LightningClient
// The main RPC listener of lnd might need some time to start, it could
// be that we run into a connection refused a few times.
err := wait.NoError(func() error {
// Create an lnd client now that we have the full configuration.
// We'll need a basic client and a full client because not all
// subservers have the same requirements.
var err error
basicClient, err = lndclient.NewBasicClient(
g.lndAddr, g.cfg.Lnd.TLSCertPath,
filepath.Dir(g.cfg.Lnd.AdminMacPath), network,
lndclient.MacFilename(filepath.Base(
g.cfg.Lnd.AdminMacPath,
)),
)
if err != nil {
return err
}
g.lndClient, err = lndclient.NewLndServices(
&lndclient.LndServicesConfig{
LndAddress: g.lndAddr,
Network: network,
MacaroonDir: filepath.Dir(g.cfg.Lnd.AdminMacPath),
TLSPath: g.cfg.Lnd.TLSCertPath,
},
)
return err
}, defaultStartupTimeout)
if err != nil {
return err
}
// The chain notifier also needs some time to start. Loop will subscribe
// to the notifier and crash if it isn't ready yet, so we need to wait
// here as a workaround.
//
// TODO(guggero): Remove once loop can retry itself.
err = wait.NoError(func() error {
ctxt, cancel := context.WithTimeout(
context.Background(), defaultStartupTimeout,
)
defer cancel()
notifier := g.lndClient.ChainNotifier
resChan, errChan, err := notifier.RegisterBlockEpochNtfn(
ctxt,
)
if err != nil {
return err
}
// Block until we get a positive/negative answer or the timeout
// is reached.
select {
case <-resChan:
return nil
case err := <-errChan:
return err
case <-ctxt.Done():
return fmt.Errorf("wait for chain notifier to be " +
"ready timed out")
}
}, defaultStartupTimeout)
if err != nil {
return err
}
err = g.faradayServer.StartAsSubserver(basicClient)
if err != nil {
return err
}
g.faradayStarted = true
err = g.loopServer.StartAsSubserver(g.lndClient)
if err != nil {
return err
}
g.loopStarted = true
return nil
}
// RegisterGrpcSubserver is a callback on the lnd.SubserverConfig struct that is
// called once lnd has initialized its main gRPC server instance. It gives the
// daemons (or external subservers) the possibility to register themselves to
// the same server instance.
func (g *Shushtar) RegisterGrpcSubserver(grpcServer *grpc.Server) error {
g.lndGrpcServer = grpcServer
frdrpc.RegisterFaradayServerServer(grpcServer, g.faradayServer)
looprpc.RegisterSwapClientServer(grpcServer, g.loopServer)
return nil
}
// RegisterRestSubserver is a callback on the lnd.SubserverConfig struct that is
// called once lnd has initialized its main REST server instance. It gives the
// daemons (or external subservers) the possibility to register themselves to
// the same server instance.
func (g *Shushtar) RegisterRestSubserver(ctx context.Context,
mux *restProxy.ServeMux, endpoint string,
dialOpts []grpc.DialOption) error {
err := frdrpc.RegisterFaradayServerHandlerFromEndpoint(
ctx, mux, endpoint, dialOpts,
)
if err != nil {
return err
}
return looprpc.RegisterSwapClientHandlerFromEndpoint(
ctx, mux, endpoint, dialOpts,
)
}
// shutdown stops all subservers that were started and attached to lnd.
func (g *Shushtar) shutdown() error {
var returnErr error
if g.faradayStarted {
err := g.faradayServer.Stop()
if err != nil {
log.Errorf("Error stopping faraday: %v", err)
returnErr = err
}
}
if g.loopStarted {
g.loopServer.Stop()
err := <-g.loopServer.ErrChan
if err != nil {
log.Errorf("Error stopping loop: %v", err)
returnErr = err
}
}
if g.lndClient != nil {
g.lndClient.Close()
}
if g.grpcWebProxy != nil {
g.grpcWebProxy.Stop()
err := g.httpServer.Close()
if err != nil {
log.Errorf("Error stopping loop: %v", err)
returnErr = err
}
}
// In case the error wasn't thrown by lnd, make sure we stop it too.
signal.RequestShutdown()
g.wg.Wait()
err := <-g.lndErrChan
if err != nil {
log.Errorf("Error stopping lnd: %v", err)
returnErr = err
}
return returnErr
}
// startGrpcWebProxy creates a proxy that speaks gRPC web on one side and native
// gRPC on the other side. This allows gRPC web requests from the browser to be
// forwarded to lnd's native gRPC interface.
func (g *Shushtar) startGrpcWebProxy() error {
// Initialize the in-memory file server from the content compiled by
// the statik library.
statikFS, err := fs.New()
if err != nil {
return fmt.Errorf("could not load statik file system: %v", err)
}
staticFileServer := http.FileServer(statikFS)
// Create the gRPC web proxy that connects to lnd internally using the
// admin macaroon and converts the browser's gRPC web calls into native
// gRPC.
lndGrpcServer, grpcServer, err := buildGrpcWebProxyServer(
g.lndAddr, g.cfg.Lnd,
)
if err != nil {
return fmt.Errorf("could not create gRPC web proxy: %v", err)
}
g.grpcWebProxy = grpcServer
// Both gRPC (web) and static file requests will come into through the
// main UI HTTP server. We use this simple switching handler to send the
// requests to the correct implementation.
httpHandler := func(resp http.ResponseWriter, req *http.Request) {
// gRPC requests are easy to identify. Send them to the gRPC web
// proxy.
if lndGrpcServer.IsGrpcWebRequest(req) ||
lndGrpcServer.IsGrpcWebSocketRequest(req) {
log.Infof("Handling gRPC request: %s", req.URL.Path)
lndGrpcServer.ServeHTTP(resp, req)
return
}
// If we got here, it's a static file the browser wants, or
// something we don't know in which case the static file server
// will answer with a 404.
log.Infof("Handling static file request: %s", req.URL.Path)
staticFileServer.ServeHTTP(resp, req)
}
// Create and start our HTTPS server now that will handle both gRPC web
// and static file requests.
g.httpServer = &http.Server{
WriteTimeout: defaultServerTimeout,
ReadTimeout: defaultServerTimeout,
Handler: http.HandlerFunc(httpHandler),
}
httpListener, err := net.Listen("tcp", g.cfg.HTTPSListen)
if err != nil {
return fmt.Errorf("unable to listen on %v: %v",
g.cfg.HTTPSListen, err)
}
tlsConfig, err := buildTLSConfigForHttp2(g.cfg.Lnd)
if err != nil {
return fmt.Errorf("unable to create TLS config: %v", err)
}
tlsListener := tls.NewListener(httpListener, tlsConfig)
g.wg.Add(1)
go func() {
defer g.wg.Done()
log.Infof("Listening for http_tls on: %v", tlsListener.Addr())
err := g.httpServer.Serve(tlsListener)
if err != nil && err != http.ErrServerClosed {
log.Errorf("http_tls server error: %v", err)
}
}()
return nil
}
// buildGrpcWebProxyServer creates a gRPC server that will serve gRPC web to the
// browser and translate all incoming gRPC web calls into native gRPC that are
// then forwarded to lnd's RPC interface.
func buildGrpcWebProxyServer(lndAddr string,
config *lnd.Config) (*grpcweb.WrappedGrpcServer, *grpc.Server, error) {
// Apply gRPC-wide changes.
grpc.EnableTracing = true
grpclog.SetLoggerV2(NewGrpcLogLogger(
config.LogWriter, GrpcLogSubsystem,
))
// Setup the connection to lnd. GRPC web has a few kinks that need to be
// addressed with a custom director that just takes care of a few HTTP
// header fields.
backendConn, err := dialLnd(lndAddr, config)
if err != nil {
return nil, nil, fmt.Errorf("could not dial lnd: %v", err)
}
director := newDirector(backendConn)
// Set up the final gRPC server that will serve gRPC web to the browser
// and translate all incoming gRPC web calls into native gRPC that are
// then forwarded to lnd's RPC interface.
grpcServer := grpc.NewServer(
grpc.CustomCodec(proxy.Codec()),
grpc.UnknownServiceHandler(proxy.TransparentHandler(director)),
)
options := []grpcweb.Option{
grpcweb.WithWebsockets(true),
grpcweb.WithWebsocketPingInterval(2 * time.Minute),
grpcweb.WithCorsForRegisteredEndpointsOnly(false),
}
return grpcweb.WrapServer(grpcServer, options...), grpcServer, nil
}
// newDirector returns a new director function that fixes some common known
// issues when using gRPC web from the browser.
func newDirector(backendConn *grpc.ClientConn) proxy.StreamDirector {
return func(ctx context.Context, fullMethodName string) (context.Context,
*grpc.ClientConn, error) {
md, _ := metadata.FromIncomingContext(ctx)
mdCopy := md.Copy()
// If this header is present in the request from the web client,
// the actual connection to the backend will not be established.
// https://github.com/improbable-eng/grpc-web/issues/568
delete(mdCopy, "connection")
outCtx := metadata.NewOutgoingContext(ctx, mdCopy)
return outCtx, backendConn, nil
}
}
// dialLnd connects to lnd through the given address and uses the admin macaroon
// to authenticate.
func dialLnd(lndAddr string, config *lnd.Config) (*grpc.ClientConn, error) {
dialAdminMac, err := readMacaroon(config.AdminMacPath)
if err != nil {
return nil, fmt.Errorf("could not read admin macaroon: %v", err)
}
tlsConfig, err := credentials.NewClientTLSFromFile(
config.TLSCertPath, "",
)
if err != nil {
return nil, fmt.Errorf("could not read lnd TLS cert: %v", err)
}
opt := []grpc.DialOption{
dialAdminMac,
grpc.WithCodec(proxy.Codec()), // nolint
grpc.WithTransportCredentials(tlsConfig),
grpc.WithDefaultCallOptions(maxMsgRecvSize),
grpc.WithConnectParams(grpc.ConnectParams{
Backoff: backoff.DefaultConfig,
MinConnectTimeout: 5 * time.Second,
}),
}
log.Infof("Dialing lnd gRPC server at %s", lndAddr)
cc, err := grpc.Dial(lndAddr, opt...)
if err != nil {
return nil, fmt.Errorf("failed dialing backend: %v", err)
}
return cc, nil
}
// readMacaroon tries to read the macaroon file at the specified path and create
// gRPC dial options from it.
func readMacaroon(macPath string) (grpc.DialOption, error) {
// Load the specified macaroon file.
macBytes, err := ioutil.ReadFile(macPath)
if err != nil {
return nil, fmt.Errorf("unable to read macaroon path : %v", err)
}
mac := &macaroon.Macaroon{}
if err = mac.UnmarshalBinary(macBytes); err != nil {
return nil, fmt.Errorf("unable to decode macaroon: %v", err)
}
// Now we append the macaroon credentials to the dial options.
cred := macaroons.NewMacaroonCredential(mac)
return grpc.WithPerRPCCredentials(cred), nil
}

View file

@ -1,97 +0,0 @@
package main
import (
"fmt"
"net"
"net/http"
_ "net/http/pprof" // register in DefaultServerMux
"os"
"time"
"crypto/tls"
"github.com/mwitkow/go-conntrack"
"github.com/mwitkow/go-conntrack/connhelpers"
"github.com/sirupsen/logrus"
_ "golang.org/x/net/trace" // register in DefaultServerMux
)
func main() {
config, err := loadConfig()
if err != nil {
logrus.Errorf("error loading config: %v", err)
return
}
logrus.SetOutput(os.Stdout)
logEntry := logrus.NewEntry(logrus.StandardLogger())
errChan := make(chan error)
lndGrpcServer := buildGrpcProxyServer(logEntry, config.LNDHost, true)
loopGrpcServer := buildGrpcProxyServer(logEntry, config.LoopHost, false)
staticFileServer := http.FileServer(http.Dir("./app/build"))
httpHandler := func(resp http.ResponseWriter, req *http.Request) {
if lndGrpcServer.IsGrpcWebRequest(req) {
backend := req.Header.Get("X-Grpc-Backend")
switch backend {
case "lnd":
logrus.Info("Handle LND GRPC request: ", req.URL.Path)
lndGrpcServer.ServeHTTP(resp, req)
case "loop":
logrus.Info("Handle Loop GRPC request: ", req.URL.Path)
loopGrpcServer.ServeHTTP(resp, req)
default:
resp.WriteHeader(500)
resp.Write([]byte("HTTP header 'X-Grpc-Backend' is missing"))
}
} else {
// fallback to static file hosting for client app
logrus.Info("Handle static file request: ", req.URL.Path)
staticFileServer.ServeHTTP(resp, req)
}
}
httpServer := &http.Server{
WriteTimeout: time.Second * 10,
ReadTimeout: time.Second * 10,
Handler: http.HandlerFunc(httpHandler),
}
httpListener := buildListenerOrFail("http", config.HTTPSListen)
httpListener = tls.NewListener(httpListener, buildServerTLSOrFail(config))
go func() {
logrus.Infof("Listening for http_tls on: %v", httpListener.Addr().String())
if err := httpServer.Serve(httpListener); err != nil {
errChan <- fmt.Errorf("http_tls server error: %v", err)
}
}()
<-errChan
}
func buildListenerOrFail(name string, addr string) net.Listener {
listener, err := net.Listen("tcp", addr)
if err != nil {
logrus.Fatalf("failed listening for '%v' on %v: %v", name, addr, err)
}
return conntrack.NewListener(listener,
conntrack.TrackWithName(name),
conntrack.TrackWithTcpKeepAlive(20*time.Second),
conntrack.TrackWithTracing(),
)
}
func buildServerTLSOrFail(config *config) *tls.Config {
tlsConfig, err := connhelpers.TlsConfigForServerCerts(config.TLSCertPath, config.TLSKeyPath)
if err != nil {
logrus.Fatalf("failed reading TLS server keys: %v", err)
}
tlsConfig.MinVersion = tls.VersionTLS12
tlsConfig.ClientAuth = tls.NoClientCert
tlsConfig, err = connhelpers.TlsConfigWithHttp2Enabled(tlsConfig)
if err != nil {
logrus.Fatalf("can't configure h2 handling: %v", err)
}
return tlsConfig
}

13
statik/doc.go Normal file
View file

@ -0,0 +1,13 @@
/*
This package does not contain any source code by default other than this
comment.
The web application's static assets (HTML, CSS, JS, images, etc.) will
be packaged, compressed, then converted to go code and saved to a file called
`statik.go` in this package during the build process.
Run the command `make statik-build` in the root directory to explicitly trigger
that part of the build or simply run `make build` to build the entire
application.
*/
package statik

91
subserver_permissions.go Normal file
View file

@ -0,0 +1,91 @@
package shushtar
import "gopkg.in/macaroon-bakery.v2/bakery"
var (
// faradayPermissions is a map of all faraday RPC methods and their
// required macaroon permissions.
//
// TODO(guggero): Move to faraday repo once macaroons are enabled there
// and use more application specific permissions.
faradayPermissions = map[string][]bakery.Op{
"/frdrpc.FaradayServer/OutlierRecommendations": {{
Entity: "offchain",
Action: "read",
}},
"/frdrpc.FaradayServer/ThresholdRecommendations": {{
Entity: "offchain",
Action: "read",
}},
"/frdrpc.FaradayServer/RevenueReport": {{
Entity: "offchain",
Action: "read",
}},
"/frdrpc.FaradayServer/ChannelInsights": {{
Entity: "offchain",
Action: "read",
}},
}
// loopPermissions is a map of all loop RPC methods and their required
// macaroon permissions.
//
// TODO(guggero): Move to loop repo once macaroons are enabled there
// and use more application specific permissions.
loopPermissions = map[string][]bakery.Op{
"/looprpc.SwapClient/LoopOut": {{
Entity: "offchain",
Action: "read",
}},
"/looprpc.SwapClient/LoopIn": {{
Entity: "offchain",
Action: "read",
}},
"/looprpc.SwapClient/Monitor": {{
Entity: "offchain",
Action: "read",
}},
"/looprpc.SwapClient/ListSwaps": {{
Entity: "offchain",
Action: "read",
}},
"/looprpc.SwapClient/SwapInfo": {{
Entity: "offchain",
Action: "read",
}},
"/looprpc.SwapClient/LoopOutTerms": {{
Entity: "offchain",
Action: "read",
}},
"/looprpc.SwapClient/LoopOutQuote": {{
Entity: "offchain",
Action: "read",
}},
"/looprpc.SwapClient/GetLoopInTerms": {{
Entity: "offchain",
Action: "read",
}},
"/looprpc.SwapClient/GetLoopInQuote": {{
Entity: "offchain",
Action: "read",
}},
"/looprpc.SwapClient/GetLsatTokens": {{
Entity: "offchain",
Action: "read",
}},
}
)
// getSubserverPermissions returns a merged map of all subserver macaroon
// permissions.
func getSubserverPermissions() map[string][]bakery.Op {
mapSize := len(faradayPermissions) + len(loopPermissions)
result := make(map[string][]bakery.Op, mapSize)
for key, value := range faradayPermissions {
result[key] = value
}
for key, value := range loopPermissions {
result[key] = value
}
return result
}