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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| package cmd | ||
|
|
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| import ( | ||
| txformat "github.com/babylonchain/babylon/btctxformatter" | ||
| bbn "github.com/babylonchain/babylon/types" | ||
| serverconfig "github.com/cosmos/cosmos-sdk/server/config" | ||
| ) | ||
|
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| type BtcConfig struct { | ||
| Network string `mapstructure:"network"` | ||
|
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| CheckpointTag string `mapstructure:"checkpoint-tag"` | ||
| } | ||
|
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| func defaultBabylonBtcConfig() BtcConfig { | ||
| return BtcConfig{ | ||
| Network: string(bbn.BtcMainnet), | ||
| CheckpointTag: string(txformat.MainTag), | ||
| } | ||
| } | ||
|
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| type BabylonAppConfig struct { | ||
| serverconfig.Config `mapstructure:",squash"` | ||
|
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| BtcConfig BtcConfig `mapstructure:"btc-config"` | ||
| } | ||
|
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| func DefaultBabylonConfig() *BabylonAppConfig { | ||
| return &BabylonAppConfig{ | ||
| Config: *serverconfig.DefaultConfig(), | ||
| BtcConfig: defaultBabylonBtcConfig(), | ||
| } | ||
| } | ||
|
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| func DefaultBabylonTemplate() string { | ||
| return serverconfig.DefaultConfigTemplate + ` | ||
| ############################################################################### | ||
| ### Babylon Bitcoin configuration ### | ||
| ############################################################################### | ||
| [btc-config] | ||
| # Configures which bitcoin network should be used for checkpointing | ||
| # valid values are: [mainnet, testnet, simnet] | ||
| network = "{{ .BtcConfig.Network }}" | ||
| # Configures what tag should be prepended to op_return data in btc transaction | ||
| # for it to be considered as valid babylon checkpoint | ||
| # valid values are: | ||
| # "BBT" for testing | ||
| # "BBN" for production usage | ||
| checkpoint-tag = "{{ .BtcConfig.CheckpointTag }}" | ||
| ` | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| package types | ||
|
|
||
| import ( | ||
| "math/big" | ||
| "sync" | ||
|
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| txformat "github.com/babylonchain/babylon/btctxformatter" | ||
| "github.com/btcsuite/btcd/chaincfg" | ||
| servertypes "github.com/cosmos/cosmos-sdk/server/types" | ||
| "github.com/spf13/cast" | ||
| ) | ||
|
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| // Global bitcoin configuration | ||
| // It is global, as we are validating few things in stateless checkTx, which | ||
| // are dependent on the btc network we are using | ||
| var ( | ||
| btcConfig *BtcConfig | ||
| initConfig sync.Once | ||
| ) | ||
|
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| type SupportedBtcNetwork string | ||
|
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| type BtcConfig struct { | ||
| powLimit *big.Int | ||
| checkPointTag txformat.BabylonTag | ||
| } | ||
|
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| const ( | ||
| BtcMainnet SupportedBtcNetwork = "mainnet" | ||
| BtcTestnet SupportedBtcNetwork = "testnet" | ||
| BtcSimnet SupportedBtcNetwork = "simnet" | ||
| ) | ||
|
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| func parsePowLimit(opts servertypes.AppOptions) *big.Int { | ||
| valueInterface := opts.Get("btc-config.network") | ||
|
|
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| if valueInterface == nil { | ||
| panic("Bitcoin network should be provided in options") | ||
| } | ||
|
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| network, err := cast.ToStringE(valueInterface) | ||
|
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| if err != nil { | ||
| panic("Btcoin netowrk config should be valid string") | ||
| } | ||
|
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| if network == string(BtcMainnet) { | ||
| return chaincfg.MainNetParams.PowLimit | ||
| } else if network == string(BtcTestnet) { | ||
| return chaincfg.TestNet3Params.PowLimit | ||
| } else if network == string(BtcSimnet) { | ||
| return chaincfg.SimNetParams.PowLimit | ||
| } else { | ||
| panic("Bicoin network should be one of [mainet, testnet, simnet]") | ||
| } | ||
| } | ||
|
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| func parseCheckpointTag(opts servertypes.AppOptions) txformat.BabylonTag { | ||
| valueInterface := opts.Get("btc-config.checkpoint-tag") | ||
|
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| if valueInterface == nil { | ||
| panic("Bitcoin network should be provided in options") | ||
| } | ||
|
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| tag, err := cast.ToStringE(valueInterface) | ||
|
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| if err != nil { | ||
| panic("checkpoint-tag should be valid string") | ||
| } | ||
|
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| if tag == string(txformat.MainTag) { | ||
| return txformat.MainTag | ||
| } else if tag == string(txformat.TestTag) { | ||
| return txformat.TestTag | ||
| } else { | ||
| panic("tag should be one of [BBN, BBT]") | ||
| } | ||
|
|
||
| } | ||
|
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| func ParseBtcOptionsFromConfig(opts servertypes.AppOptions) BtcConfig { | ||
| powLimit := parsePowLimit(opts) | ||
| tag := parseCheckpointTag(opts) | ||
| return BtcConfig{ | ||
| powLimit: powLimit, | ||
| checkPointTag: tag, | ||
| } | ||
| } | ||
|
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| func InitGlobalBtcConfig(c BtcConfig) { | ||
| initConfig.Do(func() { | ||
| btcConfig = &c | ||
| }) | ||
| } | ||
|
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| func (c *BtcConfig) PowLimit() big.Int { | ||
| return *c.powLimit | ||
| } | ||
|
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| func (c *BtcConfig) CheckpointTag() txformat.BabylonTag { | ||
| return c.checkPointTag | ||
| } | ||
|
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| func GetGlobalPowLimit() big.Int { | ||
| // We are making copy of pow limit to avoid anyone changing globally configured | ||
| // powlimit. If it start slowing things down, due to multiple copies needed to | ||
| // be garbage collected, we will need to think of other way of protecting global | ||
| // state | ||
| return btcConfig.PowLimit() | ||
| } | ||
|
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| func GetGlobalCheckPointTag() txformat.BabylonTag { | ||
| return btcConfig.checkPointTag | ||
| } |
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