Merge pull request #475 from cosmos/bez/474-refactor-tx-impl
R4R: Remove EmbeddedTx and Related Logic
This commit is contained in:
Jack Zampolin
GitHub
commit
50e0602923
54
Gopkg.lock
generated
54
Gopkg.lock
generated
@ -3,19 +3,19 @@
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[[projects]]
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branch = "master"
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digest = "1:fcdf62d2d7e43c2565d6f8707ab4eae54dac702ed4bafb194b85139f0508929f"
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digest = "1:79b02529d2120af44eaad5f7fee9ff7e003739d469e2c2767008b797d290e9fd"
|
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name = "github.com/aristanetworks/goarista"
|
||||
packages = ["monotime"]
|
||||
pruneopts = "T"
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revision = "b2d71c282dc706f4b4f6c15b65810e1202ecd53f"
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revision = "18b896026201d8e1758468d9c5d5a558c69c5e9b"
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[[projects]]
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branch = "master"
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digest = "1:d4d66abd43dbb9b5f5e6a176c5ed279c289f8db734904c047d95113a04aa2e60"
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digest = "1:8ad24ea05e770b745b5c286b4f94cf73d5be87005680e36b2d0dd1de0a2f9fbf"
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name = "github.com/btcsuite/btcd"
|
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packages = ["btcec"]
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pruneopts = "T"
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revision = "cf05f92c3f815bbd5091ed6c73eff51f7b1945e8"
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revision = "d81d8877b8f327112e94e814937143a71d1692a7"
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[[projects]]
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digest = "1:d0d998526cfb68788229a31c16a557fdf1fbbb510654be6b3732c2758e06b533"
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@ -25,7 +25,7 @@
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revision = "d4cc87b860166d00d6b5b9e0d3b3d71d6088d4d4"
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[[projects]]
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digest = "1:36773b598dec105de46a87978ae14e64c8d2c45aa556b8e0ddfc62d6abc7c47e"
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digest = "1:bc28e755cf6a9fd8e65497514d20c4907973e7a6a6409d30ead3fd37bfeb19a9"
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name = "github.com/cosmos/cosmos-sdk"
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packages = [
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"baseapp",
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@ -36,16 +36,16 @@
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"x/auth",
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]
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pruneopts = "T"
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revision = "23e3d5ac12145c02fcb4b4767d7dfccad782aee5"
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version = "v0.23.1"
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revision = "1c38c70468ec721e3a555ba2f3bf5f9da31f0cc9"
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version = "v0.24.2"
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[[projects]]
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digest = "1:52f195ad0e20a92d8604c1ba3cd246c61644c03eaa454b5acd41be89841e0d10"
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digest = "1:9f42202ac457c462ad8bb9642806d275af9ab4850cf0b1960b9c6f083d4a309a"
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name = "github.com/davecgh/go-spew"
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packages = ["spew"]
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pruneopts = "T"
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revision = "346938d642f2ec3594ed81d874461961cd0faa76"
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version = "v1.1.0"
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revision = "8991bc29aa16c548c550c7ff78260e27b9ab7c73"
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version = "v1.1.1"
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[[projects]]
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branch = "master"
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@ -224,12 +224,12 @@
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version = "v0.0.3"
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[[projects]]
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digest = "1:6de2f73eb31e80d74f84ce1c861e4c0c8f00ca5fb41a25901f987e63a0647c28"
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digest = "1:9ba911fe3884995431690e7eb180cf848da0d637ba5f61711783b795d031793f"
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name = "github.com/spf13/pflag"
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packages = ["."]
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pruneopts = "T"
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revision = "583c0c0531f06d5278b7d917446061adc344b5cd"
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version = "v1.0.1"
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revision = "9a97c102cda95a86cec2345a6f09f55a939babf5"
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version = "v1.0.2"
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[[projects]]
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digest = "1:e95496462101745805bd4e041a5b841e108c7cf761264d53648246308de2761e"
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@ -245,7 +245,7 @@
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[[projects]]
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branch = "master"
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digest = "1:7d44c4d11eb65cfdc78c76040f37ef305b16474c019c98a8a7cf188fece2d574"
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digest = "1:ee395d0d8c1719b5a1407f34af93953b4763bacb19a8961aba5b6d312824da41"
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name = "github.com/syndtr/goleveldb"
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packages = [
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"leveldb",
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@ -262,7 +262,7 @@
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"leveldb/util",
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]
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pruneopts = "T"
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revision = "c4c61651e9e37fa117f53c5a906d3b63090d8445"
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revision = "ae2bd5eed72d46b28834ec3f60db3a3ebedd8dbd"
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[[projects]]
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branch = "master"
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@ -276,14 +276,6 @@
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pruneopts = "T"
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revision = "d8387025d2b9d158cf4efb07e7ebf814bcce2057"
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[[projects]]
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branch = "master"
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digest = "1:3a6bdd02e7f2585c860e368467c5989310740af6206a1ada85cfa19c712e5afd"
|
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name = "github.com/tendermint/ethermint"
|
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packages = ["version"]
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pruneopts = "T"
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revision = "c1e6ebf80a6cc9119bc178faee18ef13490d707a"
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[[projects]]
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digest = "1:0e2addab3f64ece97ca434b2bf2d4e8cb54a4509904a03be8c81da3fc2ddb245"
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name = "github.com/tendermint/go-amino"
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@ -301,7 +293,7 @@
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version = "v0.9.2"
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[[projects]]
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digest = "1:9f6704ae2aedbadf616e5850375c504909d46b6ea57d4679de2b7cbc715f08e1"
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digest = "1:5a60cb048b401c0263c227baf8778ecaf038be531707057607949540486874ef"
|
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name = "github.com/tendermint/tendermint"
|
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packages = [
|
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"abci/server",
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@ -321,16 +313,16 @@
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"types",
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]
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pruneopts = "T"
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revision = "d542d2c3945116697f60451e6a407082c41c3cc9"
|
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version = "v0.22.8"
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revision = "81df19e68ab1519399fccf0cab81cb75bf9d782e"
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version = "v0.23.1-rc0"
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[[projects]]
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branch = "master"
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digest = "1:2cbe8758697d867fcebf73bcc69dff8e8abaa7fd65e5704e0744e522ccff4e6a"
|
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digest = "1:da29cbeb9d244918393b37243c008ab7128688fb017c966aaf876587c010bcdd"
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name = "golang.org/x/crypto"
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packages = ["ripemd160"]
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pruneopts = "T"
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revision = "f027049dab0ad238e394a753dba2d14753473a04"
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revision = "614d502a4dac94afa3a6ce146bd1736da82514c6"
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[[projects]]
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digest = "1:5fdc7adede42f80d6201258355d478d856778e21d735f14972abd8ff793fdbf7"
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@ -372,11 +364,12 @@
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version = "v0.3.0"
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|
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[[projects]]
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digest = "1:8cfa91d1b7f6b66fa9b1a738a4bc1325837b861e63fb9a2919931d68871bb770"
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branch = "master"
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digest = "1:960f1fa3f12667fe595c15c12523718ed8b1b5428c83d70da54bb014da9a4c1a"
|
||||
name = "google.golang.org/genproto"
|
||||
packages = ["googleapis/rpc/status"]
|
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pruneopts = "T"
|
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revision = "7fd901a49ba6a7f87732eb344f6e3c5b19d1b200"
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revision = "c66870c02cf823ceb633bcd05be3c7cda29976f4"
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[[projects]]
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digest = "1:adafc60b1d4688759f3fc8f9089e71dd17abd123f4729de6b913bf08c9143770"
|
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@ -466,7 +459,6 @@
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"github.com/pkg/errors",
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"github.com/stretchr/testify/require",
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"github.com/stretchr/testify/suite",
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"github.com/tendermint/ethermint/version",
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"github.com/tendermint/tendermint/libs/common",
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"github.com/tendermint/tendermint/libs/db",
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"github.com/tendermint/tendermint/libs/log",
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@ -4,7 +4,7 @@
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[[constraint]]
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name = "github.com/cosmos/cosmos-sdk"
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version = "=0.23.1"
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version = "=0.24.2"
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[[constraint]]
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name = "github.com/hashicorp/golang-lru"
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@ -15,12 +15,12 @@
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version = "~0.0.1"
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[[override]]
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name = "google.golang.org/genproto"
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revision = "7fd901a49ba6a7f87732eb344f6e3c5b19d1b200"
|
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name = "github.com/tendermint/iavl"
|
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version = "=v0.9.2"
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[[override]]
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name = "github.com/tendermint/tendermint"
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version = "=v0.22.8"
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version = "=v0.23.1-rc0"
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[[constraint]]
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name = "github.com/stretchr/testify"
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@ -9,7 +9,6 @@ import (
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"github.com/cosmos/ethermint/handlers"
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"github.com/cosmos/ethermint/types"
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ethcmn "github.com/ethereum/go-ethereum/common"
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ethparams "github.com/ethereum/go-ethereum/params"
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tmcmn "github.com/tendermint/tendermint/libs/common"
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@ -43,20 +42,17 @@ type (
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// NewEthermintApp returns a reference to a new initialized Ethermint
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// application.
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func NewEthermintApp(
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logger tmlog.Logger, db dbm.DB, ethChainCfg *ethparams.ChainConfig,
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sdkAddr ethcmn.Address, opts ...Options,
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func NewEthermintApp(logger tmlog.Logger, db dbm.DB, ethChainCfg *ethparams.ChainConfig, opts ...Options,
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) *EthermintApp {
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codec := CreateCodec()
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app := &EthermintApp{
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BaseApp: bam.NewBaseApp(appName, codec, logger, db),
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BaseApp: bam.NewBaseApp(appName, logger, db, types.TxDecoder(codec)),
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codec: codec,
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accountKey: sdk.NewKVStoreKey("accounts"),
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}
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app.accountMapper = auth.NewAccountMapper(codec, app.accountKey, auth.ProtoBaseAccount)
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app.SetTxDecoder(types.TxDecoder(codec, sdkAddr))
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app.SetAnteHandler(handlers.AnteHandler(app.accountMapper))
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app.MountStoresIAVL(app.accountKey)
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@ -6,34 +6,20 @@ and subject to change.
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## Routing
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Ethermint needs to parse and handle transactions routed for both the EVM and for
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the Cosmos hub. We attempt to achieve this by mimicking [Geth's](https://github.com/ethereum/go-ethereum) `Transaction` structure and utilizing
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the `Payload` as the potential encoding of a Cosmos-routed transaction. What
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designates this encoding, and ultimately routing, is the `Transaction.Recipient`
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address -- if this address matches some global unique predefined and configured
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address, we regard it as a transaction meant for Cosmos, otherwise, the transaction
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is a pure Ethereum transaction and will be executed in the EVM.
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the Cosmos hub. We attempt to achieve this by mimicking [Geth's](https://github.com/ethereum/go-ethereum) `Transaction` structure to handle
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Ethereum transactions and utilizing the SDK's `auth.StdTx` for Cosmos
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transactions. Both of these structures are registered with an [Amino](https://github.com/tendermint/go-amino) codec, so the `TxDecoder` that in invoked
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during the `BaseApp#runTx`, will be able to decode raw transaction bytes into the
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appropriate transaction type which will then be passed onto handlers downstream.
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For Cosmos routed transactions, the `Transaction.Payload` will contain an
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embedded encoded type: `EmbeddedTx`. This structure is analogous to the Cosmos
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SDK `sdk.StdTx`. If a client wishes to send an `EmbeddedTx`, it must first encode
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the embedded transaction, and then encode the embedding `Transaction`.
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__Note__: The `Transaction` and `EmbeddedTx` types utilize the [Amino](https://github.com/tendermint/go-amino) object serialization protocol and as such,
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the `Transaction` is not an exact replica of what will be found in Ethereum. Our
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goal is to utilize Geth as a library, at least as much as possible, so it should
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be expected that these types and the operations you may perform on them will keep
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in line with Ethereum.
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Being that Ethermint implements the ABCI application interface, as transactions
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are sent they are passed through a series of handlers. Once such handler, `runTx`,
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is responsible for invoking the `TxDecoder` which performs the business logic of
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properly deserializing raw transaction bytes into either an Ethereum transaction
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or a Cosmos transaction.
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__Note__: Our goal is to utilize Geth as a library, at least as much as possible,
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so it should be expected that these types and the operations you may perform on
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them will keep in line with Ethereum (e.g. signature algorithms and gas/fees).
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## Transactions & Messages
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The SDK distinguishes between transactions (`sdk.Tx`) and messages (`sdk.Msg`).
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A `sdk.Tx` is a list of `sdk.Msg`s wrapped with authentication and fee data. Users
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A `sdk.Tx` is a list of `sdk.Msg` wrapped with authentication and fee data. Users
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can create messages containing arbitrary information by implementing the `sdk.Msg`
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interface.
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@ -42,25 +28,21 @@ It addition, it implements the Cosmos SDK `sdk.Msg` interface for the sole purpo
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of being to perform basic validation checks in the `BaseApp`. It, however, has
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no distinction between transactions and messages.
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The `EmbeddedTx`, being analogous to the Cosmos SDK `sdk.StdTx`, implements the
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Cosmos SDK `sdk.Tx` interface.
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## Signatures
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||||
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||||
Ethermint supports [EIP-155](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-155.md)
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signatures. A `Transaction` is expected to have a single signature for Ethereum
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routed transactions. However, just as in Cosmos, Ethermint will support multiple
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signers for `EmbeddedTx` Cosmos routed transactions. Signatures over the
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`Transaction` type are identical to Ethereum. However, the `EmbeddedTx` contains
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signers for `auth.StdTx` Cosmos routed transactions. Signatures over the
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`Transaction` type are identical to Ethereum. However, the `auth.StdTx` contains
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a canonical signature structure that contains the signature itself and other
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information such as an account's sequence number. The sequence number is expected
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to increment every time a message is signed by a given account. This, in addition
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to the chain ID, prevents "replay attacks", where the same message could be
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executed over and over again.
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information such as an account's sequence number. This, in addition to the chainID,
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helps prevent "replay attacks", where the same message could be executed over and
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over again.
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An `EmbeddedTx` list of signatures must much the unique list of addresses returned
|
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An `auth.StdTx` list of signatures must much the unique list of addresses returned
|
||||
by each message's `GetSigners` call. In addition, the address of first signer of
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the `EmbeddedTx` is responsible for paying the fees.
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||||
the `auth.StdTx` is responsible for paying the fees.
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||||
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## Gas & Fees
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||||
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@ -26,11 +26,10 @@ type internalAnteHandler func(
|
||||
sdkCtx sdk.Context, tx sdk.Tx, am auth.AccountMapper,
|
||||
) (newCtx sdk.Context, res sdk.Result, abort bool)
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// AnteHandler handles Ethereum transactions and passes SDK transactions to the
|
||||
// embeddedAnteHandler if it's an Ethermint transaction. The ante handler gets
|
||||
// invoked after the BaseApp performs the runTx. At this point, the transaction
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||||
// should be properly decoded via the TxDecoder and should be of a proper type,
|
||||
// Transaction or EmbeddedTx.
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||||
// AnteHandler is responsible for attempting to route an Ethereum or SDK
|
||||
// transaction to an internal ante handler for performing transaction-level
|
||||
// processing (e.g. fee payment, signature verification) before being passed
|
||||
// onto it's respective handler.
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||||
func AnteHandler(am auth.AccountMapper) sdk.AnteHandler {
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||||
return func(sdkCtx sdk.Context, tx sdk.Tx) (newCtx sdk.Context, res sdk.Result, abort bool) {
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||||
var (
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||||
@ -42,7 +41,7 @@ func AnteHandler(am auth.AccountMapper) sdk.AnteHandler {
|
||||
case types.Transaction:
|
||||
gasLimit = int64(tx.Data.GasLimit)
|
||||
handler = handleEthTx
|
||||
case types.EmbeddedTx:
|
||||
case auth.StdTx:
|
||||
gasLimit = tx.Fee.Gas
|
||||
handler = handleEmbeddedTx
|
||||
default:
|
||||
@ -107,23 +106,23 @@ func handleEthTx(sdkCtx sdk.Context, tx sdk.Tx, am auth.AccountMapper) (sdk.Cont
|
||||
// handleEmbeddedTx implements an ante handler for an SDK transaction. It
|
||||
// validates the signature and if valid returns an OK result.
|
||||
func handleEmbeddedTx(sdkCtx sdk.Context, tx sdk.Tx, am auth.AccountMapper) (sdk.Context, sdk.Result, bool) {
|
||||
etx, ok := tx.(types.EmbeddedTx)
|
||||
stdTx, ok := tx.(auth.StdTx)
|
||||
if !ok {
|
||||
return sdkCtx, sdk.ErrInternal(fmt.Sprintf("invalid transaction: %T", tx)).Result(), true
|
||||
}
|
||||
|
||||
if err := validateEmbeddedTxBasic(etx); err != nil {
|
||||
if err := validateStdTxBasic(stdTx); err != nil {
|
||||
return sdkCtx, err.Result(), true
|
||||
}
|
||||
|
||||
signerAddrs := etx.GetRequiredSigners()
|
||||
signerAddrs := stdTx.GetSigners()
|
||||
signerAccs := make([]auth.Account, len(signerAddrs))
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||||
|
||||
// validate signatures
|
||||
for i, sig := range etx.Signatures {
|
||||
for i, sig := range stdTx.Signatures {
|
||||
signer := ethcmn.BytesToAddress(signerAddrs[i].Bytes())
|
||||
|
||||
signerAcc, err := validateSignature(sdkCtx, etx, signer, sig, am)
|
||||
signerAcc, err := validateSignature(sdkCtx, stdTx, signer, sig, am)
|
||||
if err.Code() != sdk.CodeOK {
|
||||
return sdkCtx, err.Result(), false
|
||||
}
|
||||
@ -136,18 +135,18 @@ func handleEmbeddedTx(sdkCtx sdk.Context, tx sdk.Tx, am auth.AccountMapper) (sdk
|
||||
|
||||
newCtx := auth.WithSigners(sdkCtx, signerAccs)
|
||||
|
||||
return newCtx, sdk.Result{GasWanted: etx.Fee.Gas}, false
|
||||
return newCtx, sdk.Result{GasWanted: stdTx.Fee.Gas}, false
|
||||
}
|
||||
|
||||
// validateEmbeddedTxBasic validates an EmbeddedTx based on things that don't
|
||||
// validateStdTxBasic validates an auth.StdTx based on parameters that do not
|
||||
// depend on the context.
|
||||
func validateEmbeddedTxBasic(etx types.EmbeddedTx) (err sdk.Error) {
|
||||
sigs := etx.Signatures
|
||||
func validateStdTxBasic(stdTx auth.StdTx) (err sdk.Error) {
|
||||
sigs := stdTx.Signatures
|
||||
if len(sigs) == 0 {
|
||||
return sdk.ErrUnauthorized("transaction missing signatures")
|
||||
}
|
||||
|
||||
signerAddrs := etx.GetRequiredSigners()
|
||||
signerAddrs := stdTx.GetSigners()
|
||||
if len(sigs) != len(signerAddrs) {
|
||||
return sdk.ErrUnauthorized("invalid number of transaction signers")
|
||||
}
|
||||
@ -156,8 +155,8 @@ func validateEmbeddedTxBasic(etx types.EmbeddedTx) (err sdk.Error) {
|
||||
}
|
||||
|
||||
func validateSignature(
|
||||
sdkCtx sdk.Context, etx types.EmbeddedTx, signer ethcmn.Address,
|
||||
sig []byte, am auth.AccountMapper,
|
||||
sdkCtx sdk.Context, stdTx auth.StdTx, signer ethcmn.Address,
|
||||
sig auth.StdSignature, am auth.AccountMapper,
|
||||
) (acc auth.Account, sdkErr sdk.Error) {
|
||||
|
||||
chainID := sdkCtx.ChainID()
|
||||
@ -167,28 +166,29 @@ func validateSignature(
|
||||
return nil, sdk.ErrUnknownAddress(fmt.Sprintf("no account with address %s found", signer))
|
||||
}
|
||||
|
||||
signEtx := types.EmbeddedTxSign{
|
||||
ChainID: chainID,
|
||||
AccountNumber: acc.GetAccountNumber(),
|
||||
Sequence: acc.GetSequence(),
|
||||
Messages: etx.Messages,
|
||||
Fee: etx.Fee,
|
||||
accNum := acc.GetAccountNumber()
|
||||
if accNum != sig.AccountNumber {
|
||||
return nil, sdk.ErrInvalidSequence(
|
||||
fmt.Sprintf("invalid account number; got %d, expected %d", sig.AccountNumber, accNum))
|
||||
}
|
||||
|
||||
err := acc.SetSequence(signEtx.Sequence + 1)
|
||||
accSeq := acc.GetSequence()
|
||||
if accSeq != sig.Sequence {
|
||||
return nil, sdk.ErrInvalidSequence(
|
||||
fmt.Sprintf("invalid account sequence; got %d, expected %d", sig.Sequence, accSeq))
|
||||
}
|
||||
|
||||
err := acc.SetSequence(accSeq + 1)
|
||||
if err != nil {
|
||||
return nil, sdk.ErrInternal(err.Error())
|
||||
}
|
||||
|
||||
signBytes, err := signEtx.Bytes()
|
||||
if err != nil {
|
||||
return nil, sdk.ErrInternal(err.Error())
|
||||
}
|
||||
signBytes := types.GetStdTxSignBytes(chainID, accNum, accSeq, stdTx.Fee, stdTx.GetMsgs(), stdTx.Memo)
|
||||
|
||||
// consume gas for signature verification
|
||||
sdkCtx.GasMeter().ConsumeGas(verifySigCost, "ante verify")
|
||||
sdkCtx.GasMeter().ConsumeGas(verifySigCost, "ante signature verification")
|
||||
|
||||
if err := types.ValidateSigner(signBytes, sig, signer); err != nil {
|
||||
if err := types.ValidateSigner(signBytes, sig.Signature, signer); err != nil {
|
||||
return nil, sdk.ErrUnauthorized(err.Error())
|
||||
}
|
||||
|
||||
|
||||
158
types/tx.go
158
types/tx.go
@ -1,17 +1,13 @@
|
||||
package types
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/ecdsa"
|
||||
"crypto/sha256"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"math/big"
|
||||
"sync/atomic"
|
||||
|
||||
sdk "github.com/cosmos/cosmos-sdk/types"
|
||||
"github.com/cosmos/cosmos-sdk/wire"
|
||||
"github.com/cosmos/cosmos-sdk/x/auth"
|
||||
ethcmn "github.com/ethereum/go-ethereum/common"
|
||||
ethtypes "github.com/ethereum/go-ethereum/core/types"
|
||||
ethcrypto "github.com/ethereum/go-ethereum/crypto"
|
||||
@ -26,13 +22,9 @@ const (
|
||||
TypeTxEthereum = "Ethereum"
|
||||
)
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// Ethereum transaction
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
type (
|
||||
// Transaction implements the Ethereum transaction structure as an exact
|
||||
// copy. It implements the Cosmos sdk.Tx interface. Due to the private
|
||||
// replica. It implements the Cosmos sdk.Tx interface. Due to the private
|
||||
// fields, it must be replicated here and cannot be embedded or used
|
||||
// directly.
|
||||
//
|
||||
@ -47,9 +39,7 @@ type (
|
||||
from atomic.Value
|
||||
}
|
||||
|
||||
// TxData implements the Ethereum transaction data structure as an exact
|
||||
// copy. It is used solely as intended in Ethereum abiding by the protocol
|
||||
// except for the payload field which may embed a Cosmos SDK transaction.
|
||||
// TxData defines internal Ethereum transaction information
|
||||
TxData struct {
|
||||
AccountNonce uint64 `json:"nonce"`
|
||||
Price sdk.Int `json:"gasPrice"`
|
||||
@ -204,6 +194,8 @@ func (tx Transaction) GetMsgs() []sdk.Msg {
|
||||
// with the signature set. The signature if first recovered and then a new
|
||||
// Transaction is created with that signature. If setting the signature fails,
|
||||
// a panic will be triggered.
|
||||
//
|
||||
// TODO: To be removed in #470
|
||||
func (tx Transaction) ConvertTx(chainID *big.Int) ethtypes.Transaction {
|
||||
gethTx := ethtypes.NewTransaction(
|
||||
tx.Data.AccountNonce, *tx.Data.Recipient, tx.Data.Amount.BigInt(),
|
||||
@ -221,139 +213,16 @@ func (tx Transaction) ConvertTx(chainID *big.Int) ethtypes.Transaction {
|
||||
return *gethTx
|
||||
}
|
||||
|
||||
// HasEmbeddedTx returns a boolean reflecting if the transaction contains an
|
||||
// SDK transaction or not based on the recipient address.
|
||||
func (tx Transaction) HasEmbeddedTx(addr ethcmn.Address) bool {
|
||||
return bytes.Equal(tx.Data.Recipient.Bytes(), addr.Bytes())
|
||||
}
|
||||
|
||||
// GetEmbeddedTx returns the embedded SDK transaction from an Ethereum
|
||||
// transaction. It returns an error if decoding the inner transaction fails.
|
||||
//
|
||||
// CONTRACT: The payload field of an Ethereum transaction must contain a valid
|
||||
// encoded SDK transaction.
|
||||
func (tx Transaction) GetEmbeddedTx(codec *wire.Codec) (EmbeddedTx, sdk.Error) {
|
||||
etx := EmbeddedTx{}
|
||||
|
||||
err := codec.UnmarshalBinary(tx.Data.Payload, &etx)
|
||||
if err != nil {
|
||||
return EmbeddedTx{}, sdk.ErrTxDecode("failed to encode embedded tx")
|
||||
}
|
||||
|
||||
return etx, nil
|
||||
}
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// embedded SDK transaction
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
type (
|
||||
// EmbeddedTx implements an SDK transaction. It is to be encoded into the
|
||||
// payload field of an Ethereum transaction in order to route and handle SDK
|
||||
// transactions.
|
||||
EmbeddedTx struct {
|
||||
Messages []sdk.Msg `json:"messages"`
|
||||
Fee auth.StdFee `json:"fee"`
|
||||
Signatures [][]byte `json:"signatures"`
|
||||
}
|
||||
|
||||
// embeddedSignDoc implements a simple SignDoc for a EmbeddedTx signer to
|
||||
// sign over.
|
||||
embeddedSignDoc struct {
|
||||
ChainID string `json:"chainID"`
|
||||
AccountNumber int64 `json:"accountNumber"`
|
||||
Sequence int64 `json:"sequence"`
|
||||
Messages []json.RawMessage `json:"messages"`
|
||||
Fee json.RawMessage `json:"fee"`
|
||||
}
|
||||
|
||||
// EmbeddedTxSign implements a structure for containing the information
|
||||
// necessary for building and signing an EmbeddedTx.
|
||||
EmbeddedTxSign struct {
|
||||
ChainID string
|
||||
AccountNumber int64
|
||||
Sequence int64
|
||||
Messages []sdk.Msg
|
||||
Fee auth.StdFee
|
||||
}
|
||||
)
|
||||
|
||||
// GetMsgs implements the sdk.Tx interface. It returns all the SDK transaction
|
||||
// messages.
|
||||
func (etx EmbeddedTx) GetMsgs() []sdk.Msg {
|
||||
return etx.Messages
|
||||
}
|
||||
|
||||
// GetRequiredSigners returns all the required signers of an SDK transaction
|
||||
// accumulated from messages. It returns them in a deterministic fashion given
|
||||
// a list of messages.
|
||||
func (etx EmbeddedTx) GetRequiredSigners() []sdk.AccAddress {
|
||||
seen := map[string]bool{}
|
||||
|
||||
var signers []sdk.AccAddress
|
||||
for _, msg := range etx.GetMsgs() {
|
||||
for _, addr := range msg.GetSigners() {
|
||||
if !seen[addr.String()] {
|
||||
signers = append(signers, sdk.AccAddress(addr))
|
||||
seen[addr.String()] = true
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return signers
|
||||
}
|
||||
|
||||
// Bytes returns the EmbeddedTxSign signature bytes for a signer to sign over.
|
||||
func (ets EmbeddedTxSign) Bytes() ([]byte, error) {
|
||||
sigBytes, err := EmbeddedSignBytes(ets.ChainID, ets.AccountNumber, ets.Sequence, ets.Messages, ets.Fee)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
hash := sha256.Sum256(sigBytes)
|
||||
return hash[:], nil
|
||||
}
|
||||
|
||||
// EmbeddedSignBytes creates signature bytes for a signer to sign an embedded
|
||||
// transaction. The signature bytes require a chainID and an account number.
|
||||
// The signature bytes are JSON encoded.
|
||||
func EmbeddedSignBytes(chainID string, accnum, sequence int64, msgs []sdk.Msg, fee auth.StdFee) ([]byte, error) {
|
||||
var msgsBytes []json.RawMessage
|
||||
for _, msg := range msgs {
|
||||
msgsBytes = append(msgsBytes, json.RawMessage(msg.GetSignBytes()))
|
||||
}
|
||||
|
||||
signDoc := embeddedSignDoc{
|
||||
ChainID: chainID,
|
||||
AccountNumber: accnum,
|
||||
Sequence: sequence,
|
||||
Messages: msgsBytes,
|
||||
Fee: json.RawMessage(fee.Bytes()),
|
||||
}
|
||||
|
||||
bz, err := typesCodec.MarshalJSON(signDoc)
|
||||
if err != nil {
|
||||
errors.Wrap(err, "failed to JSON encode EmbeddedSignDoc")
|
||||
}
|
||||
|
||||
return bz, nil
|
||||
}
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// Utilities
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
// TxDecoder returns an sdk.TxDecoder that given raw transaction bytes,
|
||||
// attempts to decode them into a Transaction or an EmbeddedTx or returning an
|
||||
// error if decoding fails.
|
||||
func TxDecoder(codec *wire.Codec, sdkAddress ethcmn.Address) sdk.TxDecoder {
|
||||
// attempts to decode them into a valid sdk.Tx.
|
||||
func TxDecoder(codec *wire.Codec) sdk.TxDecoder {
|
||||
return func(txBytes []byte) (sdk.Tx, sdk.Error) {
|
||||
var tx = Transaction{}
|
||||
|
||||
if len(txBytes) == 0 {
|
||||
return nil, sdk.ErrTxDecode("txBytes are empty")
|
||||
}
|
||||
|
||||
var tx sdk.Tx
|
||||
|
||||
// The given codec should have all the appropriate message types
|
||||
// registered.
|
||||
err := codec.UnmarshalBinary(txBytes, &tx)
|
||||
@ -361,17 +230,6 @@ func TxDecoder(codec *wire.Codec, sdkAddress ethcmn.Address) sdk.TxDecoder {
|
||||
return nil, sdk.ErrTxDecode("failed to decode tx").TraceSDK(err.Error())
|
||||
}
|
||||
|
||||
// If the transaction is routed as an SDK transaction, decode and
|
||||
// return the embedded transaction.
|
||||
if tx.HasEmbeddedTx(sdkAddress) {
|
||||
etx, err := tx.GetEmbeddedTx(codec)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return etx, nil
|
||||
}
|
||||
|
||||
return tx, nil
|
||||
}
|
||||
}
|
||||
|
||||
186
types/tx_test.go
186
types/tx_test.go
@ -3,14 +3,12 @@ package types
|
||||
import (
|
||||
"crypto/ecdsa"
|
||||
"fmt"
|
||||
"math/big"
|
||||
"testing"
|
||||
|
||||
sdk "github.com/cosmos/cosmos-sdk/types"
|
||||
"github.com/cosmos/cosmos-sdk/wire"
|
||||
"github.com/cosmos/cosmos-sdk/x/auth"
|
||||
ethcmn "github.com/ethereum/go-ethereum/common"
|
||||
ethtypes "github.com/ethereum/go-ethereum/core/types"
|
||||
ethcrypto "github.com/ethereum/go-ethereum/crypto"
|
||||
"github.com/stretchr/testify/require"
|
||||
)
|
||||
@ -23,64 +21,42 @@ var (
|
||||
|
||||
testAddr1 = PrivKeyToEthAddress(testPrivKey1)
|
||||
testAddr2 = PrivKeyToEthAddress(testPrivKey2)
|
||||
|
||||
testSDKAddress = GenerateEthAddress()
|
||||
)
|
||||
|
||||
func newTestCodec() *wire.Codec {
|
||||
codec := wire.NewCodec()
|
||||
|
||||
RegisterWire(codec)
|
||||
codec.RegisterConcrete(auth.StdTx{}, "test/StdTx", nil)
|
||||
codec.RegisterConcrete(&sdk.TestMsg{}, "test/TestMsg", nil)
|
||||
wire.RegisterCrypto(codec)
|
||||
|
||||
return codec
|
||||
}
|
||||
|
||||
func newStdFee() auth.StdFee {
|
||||
return auth.NewStdFee(5000, sdk.NewCoin("photon", 150))
|
||||
return auth.NewStdFee(5000, sdk.NewCoin("photon", sdk.NewInt(150)))
|
||||
}
|
||||
|
||||
func newTestEmbeddedTx(
|
||||
func newTestStdTx(
|
||||
chainID sdk.Int, msgs []sdk.Msg, pKeys []*ecdsa.PrivateKey,
|
||||
accNums []int64, seqs []int64, fee auth.StdFee,
|
||||
) sdk.Tx {
|
||||
|
||||
sigs := make([][]byte, len(pKeys))
|
||||
sigs := make([]auth.StdSignature, len(pKeys))
|
||||
|
||||
for i, priv := range pKeys {
|
||||
signEtx := EmbeddedTxSign{chainID.String(), accNums[i], seqs[i], msgs, newStdFee()}
|
||||
|
||||
signBytes, err := signEtx.Bytes()
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
signBytes := GetStdTxSignBytes(chainID.String(), accNums[i], seqs[i], newStdFee(), msgs, "")
|
||||
|
||||
sig, err := ethcrypto.Sign(signBytes, priv)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
sigs[i] = sig
|
||||
sigs[i] = auth.StdSignature{Signature: sig, AccountNumber: accNums[i], Sequence: seqs[i]}
|
||||
}
|
||||
|
||||
return EmbeddedTx{msgs, fee, sigs}
|
||||
}
|
||||
|
||||
func newTestGethTxs(chainID sdk.Int, pKeys []*ecdsa.PrivateKey, addrs []ethcmn.Address) []ethtypes.Transaction {
|
||||
txs := make([]ethtypes.Transaction, len(pKeys))
|
||||
|
||||
for i, priv := range pKeys {
|
||||
ethTx := ethtypes.NewTransaction(
|
||||
uint64(i), addrs[i], big.NewInt(10), 100, big.NewInt(100), nil,
|
||||
)
|
||||
|
||||
signer := ethtypes.NewEIP155Signer(chainID.BigInt())
|
||||
ethTx, _ = ethtypes.SignTx(ethTx, signer, priv)
|
||||
|
||||
txs[i] = *ethTx
|
||||
}
|
||||
|
||||
return txs
|
||||
return auth.NewStdTx(msgs, fee, sigs, "")
|
||||
}
|
||||
|
||||
func newTestEthTxs(chainID sdk.Int, pKeys []*ecdsa.PrivateKey, addrs []ethcmn.Address) []Transaction {
|
||||
@ -99,63 +75,6 @@ func newTestEthTxs(chainID sdk.Int, pKeys []*ecdsa.PrivateKey, addrs []ethcmn.Ad
|
||||
return txs
|
||||
}
|
||||
|
||||
func newTestSDKTxs(
|
||||
codec *wire.Codec, chainID sdk.Int, msgs []sdk.Msg, pKeys []*ecdsa.PrivateKey,
|
||||
accNums []int64, seqs []int64, fee auth.StdFee,
|
||||
) []Transaction {
|
||||
|
||||
txs := make([]Transaction, len(pKeys))
|
||||
etx := newTestEmbeddedTx(chainID, msgs, pKeys, accNums, seqs, fee)
|
||||
|
||||
for i, priv := range pKeys {
|
||||
payload := codec.MustMarshalBinary(etx)
|
||||
|
||||
emintTx := NewTransaction(
|
||||
uint64(i), testSDKAddress, sdk.NewInt(10), 100,
|
||||
sdk.NewInt(100), payload,
|
||||
)
|
||||
|
||||
emintTx.Sign(testChainID, priv)
|
||||
|
||||
txs[i] = emintTx
|
||||
}
|
||||
|
||||
return txs
|
||||
}
|
||||
|
||||
func TestConvertTx(t *testing.T) {
|
||||
gethTxs := newTestGethTxs(
|
||||
testChainID,
|
||||
[]*ecdsa.PrivateKey{testPrivKey1, testPrivKey2},
|
||||
[]ethcmn.Address{testAddr1, testAddr2},
|
||||
)
|
||||
ethTxs := newTestEthTxs(
|
||||
testChainID,
|
||||
[]*ecdsa.PrivateKey{testPrivKey1, testPrivKey2},
|
||||
[]ethcmn.Address{testAddr1, testAddr2},
|
||||
)
|
||||
|
||||
testCases := []struct {
|
||||
ethTx ethtypes.Transaction
|
||||
emintTx Transaction
|
||||
expectedEq bool
|
||||
}{
|
||||
{gethTxs[0], ethTxs[0], true},
|
||||
{gethTxs[0], ethTxs[1], false},
|
||||
{gethTxs[1], ethTxs[0], false},
|
||||
}
|
||||
|
||||
for i, tc := range testCases {
|
||||
convertedTx := tc.emintTx.ConvertTx(testChainID.BigInt())
|
||||
|
||||
if tc.expectedEq {
|
||||
require.Equal(t, tc.ethTx, convertedTx, fmt.Sprintf("unexpected result: test case #%d", i))
|
||||
} else {
|
||||
require.NotEqual(t, tc.ethTx, convertedTx, fmt.Sprintf("unexpected result: test case #%d", i))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestValidation(t *testing.T) {
|
||||
ethTxs := newTestEthTxs(
|
||||
testChainID,
|
||||
@ -193,47 +112,6 @@ func TestValidation(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestHasEmbeddedTx(t *testing.T) {
|
||||
testCodec := newTestCodec()
|
||||
msgs := []sdk.Msg{sdk.NewTestMsg(sdk.AccAddress(testAddr1.Bytes()))}
|
||||
|
||||
sdkTxs := newTestSDKTxs(
|
||||
testCodec, testChainID, msgs, []*ecdsa.PrivateKey{testPrivKey1},
|
||||
[]int64{0}, []int64{0}, newStdFee(),
|
||||
)
|
||||
require.True(t, sdkTxs[0].HasEmbeddedTx(testSDKAddress))
|
||||
|
||||
ethTxs := newTestEthTxs(
|
||||
testChainID,
|
||||
[]*ecdsa.PrivateKey{testPrivKey1},
|
||||
[]ethcmn.Address{testAddr1},
|
||||
)
|
||||
require.False(t, ethTxs[0].HasEmbeddedTx(testSDKAddress))
|
||||
}
|
||||
|
||||
func TestGetEmbeddedTx(t *testing.T) {
|
||||
testCodec := newTestCodec()
|
||||
msgs := []sdk.Msg{sdk.NewTestMsg(sdk.AccAddress(testAddr1.Bytes()))}
|
||||
|
||||
ethTxs := newTestEthTxs(
|
||||
testChainID,
|
||||
[]*ecdsa.PrivateKey{testPrivKey1},
|
||||
[]ethcmn.Address{testAddr1},
|
||||
)
|
||||
sdkTxs := newTestSDKTxs(
|
||||
testCodec, testChainID, msgs, []*ecdsa.PrivateKey{testPrivKey1},
|
||||
[]int64{0}, []int64{0}, newStdFee(),
|
||||
)
|
||||
|
||||
etx, err := sdkTxs[0].GetEmbeddedTx(testCodec)
|
||||
require.NoError(t, err)
|
||||
require.NotEmpty(t, etx.Messages)
|
||||
|
||||
etx, err = ethTxs[0].GetEmbeddedTx(testCodec)
|
||||
require.Error(t, err)
|
||||
require.Empty(t, etx.Messages)
|
||||
}
|
||||
|
||||
func TestTransactionGetMsgs(t *testing.T) {
|
||||
ethTxs := newTestEthTxs(
|
||||
testChainID,
|
||||
@ -246,7 +124,7 @@ func TestTransactionGetMsgs(t *testing.T) {
|
||||
require.Equal(t, ethTxs[0], msgs[0])
|
||||
|
||||
expectedMsgs := []sdk.Msg{sdk.NewTestMsg(sdk.AccAddress(testAddr1.Bytes()))}
|
||||
etx := newTestEmbeddedTx(
|
||||
etx := newTestStdTx(
|
||||
testChainID, expectedMsgs, []*ecdsa.PrivateKey{testPrivKey1},
|
||||
[]int64{0}, []int64{0}, newStdFee(),
|
||||
)
|
||||
@ -256,21 +134,10 @@ func TestTransactionGetMsgs(t *testing.T) {
|
||||
require.Equal(t, expectedMsgs, msgs)
|
||||
}
|
||||
|
||||
func TestGetRequiredSigners(t *testing.T) {
|
||||
msgs := []sdk.Msg{sdk.NewTestMsg(sdk.AccAddress(testAddr1.Bytes()))}
|
||||
etx := newTestEmbeddedTx(
|
||||
testChainID, msgs, []*ecdsa.PrivateKey{testPrivKey1},
|
||||
[]int64{0}, []int64{0}, newStdFee(),
|
||||
)
|
||||
|
||||
signers := etx.(EmbeddedTx).GetRequiredSigners()
|
||||
require.Equal(t, []sdk.AccAddress{sdk.AccAddress(testAddr1.Bytes())}, signers)
|
||||
}
|
||||
|
||||
func TestTxDecoder(t *testing.T) {
|
||||
testCodec := newTestCodec()
|
||||
txDecoder := TxDecoder(testCodec, testSDKAddress)
|
||||
msgs := []sdk.Msg{sdk.NewTestMsg(sdk.AccAddress(testAddr1.Bytes()))}
|
||||
txDecoder := TxDecoder(testCodec)
|
||||
msgs := []sdk.Msg{sdk.NewTestMsg()}
|
||||
|
||||
// create a non-SDK Ethereum transaction
|
||||
emintTx := NewTransaction(
|
||||
@ -284,43 +151,20 @@ func TestTxDecoder(t *testing.T) {
|
||||
require.NoError(t, err)
|
||||
require.Equal(t, emintTx, tx)
|
||||
|
||||
// create embedded transaction and encode
|
||||
etx := newTestEmbeddedTx(
|
||||
// create a SDK (auth.StdTx) transaction and encode
|
||||
stdTx := newTestStdTx(
|
||||
testChainID, msgs, []*ecdsa.PrivateKey{testPrivKey1},
|
||||
[]int64{0}, []int64{0}, newStdFee(),
|
||||
)
|
||||
|
||||
payload := testCodec.MustMarshalBinary(etx)
|
||||
|
||||
expectedEtx := EmbeddedTx{}
|
||||
testCodec.UnmarshalBinary(payload, &expectedEtx)
|
||||
|
||||
emintTx = NewTransaction(
|
||||
uint64(0), testSDKAddress, sdk.NewInt(10), 100,
|
||||
sdk.NewInt(100), payload,
|
||||
)
|
||||
emintTx.Sign(testChainID, testPrivKey1)
|
||||
|
||||
// require the transaction to properly decode into a Transaction
|
||||
txBytes = testCodec.MustMarshalBinary(emintTx)
|
||||
txBytes = testCodec.MustMarshalBinary(stdTx)
|
||||
tx, err = txDecoder(txBytes)
|
||||
require.NoError(t, err)
|
||||
require.Equal(t, expectedEtx, tx)
|
||||
require.Equal(t, stdTx, tx)
|
||||
|
||||
// require the decoding to fail when no transaction bytes are given
|
||||
tx, err = txDecoder([]byte{})
|
||||
require.Error(t, err)
|
||||
require.Nil(t, tx)
|
||||
|
||||
// create a non-SDK Ethereum transaction with an SDK address and garbage payload
|
||||
emintTx = NewTransaction(
|
||||
uint64(0), testSDKAddress, sdk.NewInt(10), 100, sdk.NewInt(100), []byte("garbage"),
|
||||
)
|
||||
emintTx.Sign(testChainID, testPrivKey1)
|
||||
|
||||
// require the transaction to fail decoding as the payload is invalid
|
||||
txBytes = testCodec.MustMarshalBinary(emintTx)
|
||||
tx, err = txDecoder(txBytes)
|
||||
require.Error(t, err)
|
||||
require.Nil(t, tx)
|
||||
}
|
||||
|
||||
@ -2,8 +2,11 @@ package types
|
||||
|
||||
import (
|
||||
"crypto/ecdsa"
|
||||
"crypto/sha256"
|
||||
"fmt"
|
||||
|
||||
sdk "github.com/cosmos/cosmos-sdk/types"
|
||||
"github.com/cosmos/cosmos-sdk/x/auth"
|
||||
ethcmn "github.com/ethereum/go-ethereum/common"
|
||||
ethcrypto "github.com/ethereum/go-ethereum/crypto"
|
||||
|
||||
@ -39,3 +42,11 @@ func ValidateSigner(signBytes, sig []byte, signer ethcmn.Address) error {
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetStdTxSignBytes returns the signature bytes for an auth.StdTx transaction
|
||||
// that is compatible with Ethereum's signature mechanism.
|
||||
func GetStdTxSignBytes(chainID string, accNum int64, seq int64, fee auth.StdFee, msgs []sdk.Msg, memo string) []byte {
|
||||
signBytes := auth.StdSignBytes(chainID, accNum, seq, fee, msgs, "")
|
||||
hash := sha256.Sum256(signBytes)
|
||||
return hash[:]
|
||||
}
|
||||
|
||||
@ -12,12 +12,8 @@ import (
|
||||
func TestValidateSigner(t *testing.T) {
|
||||
msgs := []sdk.Msg{sdk.NewTestMsg(sdk.AccAddress(testAddr1.Bytes()))}
|
||||
|
||||
// create message signing structure
|
||||
signEtx := EmbeddedTxSign{testChainID.String(), 0, 0, msgs, newStdFee()}
|
||||
|
||||
// create signing bytes and sign
|
||||
signBytes, err := signEtx.Bytes()
|
||||
require.NoError(t, err)
|
||||
// create message signing structure and bytes
|
||||
signBytes := GetStdTxSignBytes(testChainID.String(), 0, 0, newStdFee(), msgs, "")
|
||||
|
||||
// require signing not to fail
|
||||
sig, err := ethcrypto.Sign(signBytes, testPrivKey1)
|
||||
|
||||
@ -18,5 +18,4 @@ func RegisterWire(codec *wire.Codec) {
|
||||
codec.RegisterConcrete(&EthSignature{}, "types/EthSignature", nil)
|
||||
codec.RegisterConcrete(TxData{}, "types/TxData", nil)
|
||||
codec.RegisterConcrete(Transaction{}, "types/Transaction", nil)
|
||||
codec.RegisterConcrete(EmbeddedTx{}, "types/EmbeddedTx", nil)
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user