63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
package webapi
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import (
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"encoding/base64"
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"fmt"
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"net/http"
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"time"
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"github.com/decred/dcrd/chaincfg/chainhash"
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"github.com/decred/dcrd/dcrutil/v3"
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"github.com/gin-gonic/gin"
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)
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// ticketStatus is the handler for "GET /ticketstatus"
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func ticketStatus(c *gin.Context) {
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var ticketStatusRequest TicketStatusRequest
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if err := c.ShouldBindJSON(&ticketStatusRequest); err != nil {
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log.Warnf("Bad ticketstatus request from %s: %v", c.ClientIP(), err)
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sendErrorResponse(err.Error(), http.StatusBadRequest, c)
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return
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}
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// ticketHash
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ticketHashStr := ticketStatusRequest.TicketHash
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_, err := chainhash.NewHashFromStr(ticketHashStr)
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if err != nil {
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log.Warnf("Invalid ticket hash from %s", c.ClientIP())
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sendErrorResponse("invalid ticket hash", http.StatusBadRequest, c)
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return
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}
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// signature - sanity check signature is in base64 encoding
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signature := ticketStatusRequest.Signature
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if _, err = base64.StdEncoding.DecodeString(signature); err != nil {
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log.Warnf("Invalid signature from %s", c.ClientIP())
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sendErrorResponse("invalid signature", http.StatusBadRequest, c)
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return
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}
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ticket, err := db.GetTicketByHash(ticketHashStr)
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if err != nil {
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log.Warnf("Invalid ticket from %s", c.ClientIP())
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sendErrorResponse("invalid ticket", http.StatusBadRequest, c)
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return
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}
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// verify message
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message := fmt.Sprintf("vsp v3 ticketstatus %d %s", ticketStatusRequest.Timestamp, ticketHashStr)
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err = dcrutil.VerifyMessage(ticket.CommitmentAddress, signature, message, cfg.NetParams)
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if err != nil {
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log.Warnf("Invalid signature from %s", c.ClientIP())
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sendErrorResponse("invalid signature", http.StatusBadRequest, c)
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return
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}
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sendJSONResponse(ticketStatusResponse{
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Timestamp: time.Now().Unix(),
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Request: ticketStatusRequest,
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Status: "active", // TODO - active, pending, expired (missed, revoked?)
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VoteBits: ticket.VoteBits,
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}, c)
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}
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