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Faucet: Use client IP in captcha requests (#4196)

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* Use client IP in captcha requests
This commit is contained in:
Preston Van Loon 2019-12-04 18:18:15 -08:00 committed by prylabs-bulldozer[bot]
parent 23dd951e59
commit 544e5309ad
1 changed files with 8 additions and 6 deletions
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14
tools/faucet/server.go
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@ -19,7 +19,7 @@ import (
recaptcha "github.com/prestonvanloon/go-recaptcha"
faucetpb "github.com/prysmaticlabs/prysm/proto/faucet"
"github.com/prysmaticlabs/prysm/shared/roughtime"
"google.golang.org/grpc/peer"
"google.golang.org/grpc/metadata"
)
var fundingAmount = big.NewInt(3.5 * params.Ether)
@ -70,13 +70,15 @@ func newFaucetServer(
}
func (s *faucetServer) verifyRecaptcha(ctx context.Context, req *faucetpb.FundingRequest) error {
p, ok := peer.FromContext(ctx)
if !ok {
return errors.New("peer from ctx not ok")
md, ok := metadata.FromIncomingContext(ctx)
if !ok || len(md.Get("x-forwarded-for")) < 1 {
return errors.New("metadata not ok")
}
fmt.Printf("Sending captcha request for peer %s\n", p.Addr.String())
peer := md.Get("x-forwarded-for")[0]
fmt.Printf("Sending captcha request for peer %s\n", peer)
rr, err := s.r.Check(p.Addr.String(), req.RecaptchaResponse)
rr, err := s.r.Check(peer, req.RecaptchaResponse)
if err != nil {
return err
}