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api: add optional parent transaction to feeaddress (#205)

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David Hill 2020-11-20 13:10:13 +00:00 committed by GitHub
parent 0f657eb4fe
commit 1c6f962e2b
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 43 additions and 1 deletions
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3
docs/api.md
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@ -79,7 +79,8 @@ for the specified ticket.
{
"timestamp":1590509066,
"tickethash":"1b9f5dc3b4872c47f66b148b0633647458123d72a0f0623a90890cc51a668737",
"tickethex":"0100000001a8...bfa6e4bf9c5ec1"
"tickethex":"0100000001a8...bfa6e4bf9c5ec1",
"parenthex":"0100000022a7...580771a3064710"
}
```

40
webapi/middleware.go
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@ -27,6 +27,7 @@ type ticketHashRequest struct {
type ticketRequest struct {
TicketHex string `json:"tickethex" binding:"required"`
TicketHash string `json:"tickethash" binding:"required"`
ParentHex string `json:"parenthex"`
}
// withSession middleware adds a gorilla session to the request context for
@ -163,6 +164,45 @@ func broadcastTicket() gin.HandlerFunc {
dcrdClient := c.MustGet("DcrdClient").(*rpc.DcrdRPC)
if request.ParentHex != "" {
parentTx, err := decodeTransaction(request.ParentHex)
if err != nil {
log.Errorf("%s: Failed to decode parent hex (ticketHash=%s): %v", funcName, request.TicketHash, err)
sendErrorWithMsg("cannot decode parent hex", errBadRequest, c)
return
}
parentHash := parentTx.TxHash()
_, err = dcrdClient.GetRawTransaction(parentHash.String())
if err == nil {
// No error means dcrd already knows the parent, we are done here.
goto processTicket
}
var found bool
for _, txIn := range msgTx.TxIn {
if !txIn.PreviousOutPoint.Hash.IsEqual(&parentHash) {
continue
}
found = true
break
}
if !found {
log.Errorf("%s: Invalid ticket parent (ticketHash=%s)", funcName, request.TicketHash)
sendErrorWithMsg("invalid ticket parent", errBadRequest, c)
return
}
log.Debugf("%s: Broadcasting parent tx %s (ticketHash=%s)", funcName, parentHash, request.TicketHash)
err = dcrdClient.SendRawTransaction(request.ParentHex)
if err != nil {
log.Errorf("%s: dcrd.SendRawTransaction for parent tx failed (ticketHash=%s): %v",
funcName, request.TicketHash, err)
sendError(errCannotBroadcastTicket, c)
return
}
}
processTicket:
// Use GetRawTransaction to check if local dcrd already knows this
// ticket.
_, err = dcrdClient.GetRawTransaction(request.TicketHash)

1
webapi/types.go
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@ -21,6 +21,7 @@ type feeAddressRequest struct {
Timestamp int64 `json:"timestamp" binding:"required"`
TicketHash string `json:"tickethash" binding:"required"`
TicketHex string `json:"tickethex" binding:"required"`
ParentTx string `json:"parenthex"`
}
type feeAddressResponse struct {