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webapi: sanity check the fee transaction (#151)

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David Hill 2020-07-06 09:07:59 +00:00 committed by GitHub
parent 4f0c980aca
commit b24c1a4c78
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3 changed files with 11 additions and 0 deletions
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1
go.mod
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@ -5,6 +5,7 @@ go 1.13
require ( require (
decred.org/dcrwallet v1.2.3-0.20200519180100-f1aa4c354e05 decred.org/dcrwallet v1.2.3-0.20200519180100-f1aa4c354e05
github.com/decred/dcrd/blockchain/stake/v3 v3.0.0-20200616182840-3baf1f590cb1 github.com/decred/dcrd/blockchain/stake/v3 v3.0.0-20200616182840-3baf1f590cb1
github.com/decred/dcrd/blockchain/v3 v3.0.0-20200311044114-143c1884e4c8
github.com/decred/dcrd/chaincfg/chainhash v1.0.2 github.com/decred/dcrd/chaincfg/chainhash v1.0.2
github.com/decred/dcrd/chaincfg/v3 v3.0.0-20200616182840-3baf1f590cb1 github.com/decred/dcrd/chaincfg/v3 v3.0.0-20200616182840-3baf1f590cb1
github.com/decred/dcrd/dcrec v1.0.0 github.com/decred/dcrd/dcrec v1.0.0

1
go.sum
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@ -28,6 +28,7 @@ github.com/decred/dcrd/blockchain/stake/v3 v3.0.0-20200616182840-3baf1f590cb1 h1
github.com/decred/dcrd/blockchain/stake/v3 v3.0.0-20200616182840-3baf1f590cb1/go.mod h1:1e94ovQXEcOjIn7BRzkXpswA7pWQXqB2el5l0w0Srf8= github.com/decred/dcrd/blockchain/stake/v3 v3.0.0-20200616182840-3baf1f590cb1/go.mod h1:1e94ovQXEcOjIn7BRzkXpswA7pWQXqB2el5l0w0Srf8=
github.com/decred/dcrd/blockchain/standalone v1.1.0 h1:yclvVGEY09Gf8A4GSAo+NCtL1dW2TYJ4OKp4+g0ICI0= github.com/decred/dcrd/blockchain/standalone v1.1.0 h1:yclvVGEY09Gf8A4GSAo+NCtL1dW2TYJ4OKp4+g0ICI0=
github.com/decred/dcrd/blockchain/standalone v1.1.0/go.mod h1:6K8ZgzlWM1Kz2TwXbrtiAvfvIwfAmlzrtpA7CVPCUPE= github.com/decred/dcrd/blockchain/standalone v1.1.0/go.mod h1:6K8ZgzlWM1Kz2TwXbrtiAvfvIwfAmlzrtpA7CVPCUPE=
github.com/decred/dcrd/blockchain/v3 v3.0.0-20200311044114-143c1884e4c8 h1:I3psccIeKb9eld+TNd69SgUOy6940uflH/J3aLM2ctU=
github.com/decred/dcrd/blockchain/v3 v3.0.0-20200311044114-143c1884e4c8/go.mod h1:R9rIXU8kEJVC9Z4LAlh9bo9hiT3a+ihys3mCrz4PVao= github.com/decred/dcrd/blockchain/v3 v3.0.0-20200311044114-143c1884e4c8/go.mod h1:R9rIXU8kEJVC9Z4LAlh9bo9hiT3a+ihys3mCrz4PVao=
github.com/decred/dcrd/certgen v1.1.0/go.mod h1:ivkPLChfjdAgFh7ZQOtl6kJRqVkfrCq67dlq3AbZBQE= github.com/decred/dcrd/certgen v1.1.0/go.mod h1:ivkPLChfjdAgFh7ZQOtl6kJRqVkfrCq67dlq3AbZBQE=
github.com/decred/dcrd/chaincfg/chainhash v1.0.2 h1:rt5Vlq/jM3ZawwiacWjPa+smINyLRN07EO0cNBV6DGU= github.com/decred/dcrd/chaincfg/chainhash v1.0.2 h1:rt5Vlq/jM3ZawwiacWjPa+smINyLRN07EO0cNBV6DGU=

9
webapi/payfee.go
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@ -3,6 +3,7 @@ package webapi
import ( import (
"time" "time"
"github.com/decred/dcrd/blockchain/v3"
"github.com/decred/dcrd/dcrec" "github.com/decred/dcrd/dcrec"
"github.com/decred/dcrd/dcrutil/v3" "github.com/decred/dcrd/dcrutil/v3"
"github.com/decred/dcrd/txscript/v3" "github.com/decred/dcrd/txscript/v3"
@ -107,6 +108,14 @@ func payFee(c *gin.Context) {
return return
} }
err = blockchain.CheckTransactionSanity(feeTx, cfg.NetParams)
if err != nil {
log.Warnf("%s: Fee tx failed sanity check (clientIP=%s, ticketHash=%s): %v",
funcName, c.ClientIP(), ticket.Hash, err)
sendError(errInvalidFeeTx, c)
return
}
// Loop through transaction outputs until we find one which pays to the // Loop through transaction outputs until we find one which pays to the
// expected fee address. Record how much is being paid to the fee address. // expected fee address. Record how much is being paid to the fee address.
var feePaid dcrutil.Amount var feePaid dcrutil.Amount