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Implement tx pool endpoints

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This commit is contained in:
Arnau B
2020-10-14 17:38:34 +02:00
parent efed84f1e8
commit 006bbf3321
20 changed files with 990 additions and 399 deletions
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102
api/parsers.go
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@@ -75,61 +75,16 @@ func parseQueryBool(name string, dflt *bool, c querier) (*bool, error) { //nolin
func parseQueryHezEthAddr(c querier) (*ethCommon.Address, error) {
const name = "hermezEthereumAddress"
addrStr := c.Query(name)
if addrStr == "" {
return nil, nil
}
splitted := strings.Split(addrStr, "hez:")
if len(splitted) != 2 || len(splitted[1]) != 42 {
return nil, fmt.Errorf(
"Invalid %s, must follow this regex: ^hez:0x[a-fA-F0-9]{40}$", name)
}
var addr ethCommon.Address
err := addr.UnmarshalText([]byte(splitted[1]))
return &addr, err
return hezStringToEthAddr(addrStr, name)
}
func parseQueryBJJ(c querier) (*babyjub.PublicKey, error) {
const name = "BJJ"
const decodedLen = 33
bjjStr := c.Query(name)
if bjjStr == "" {
return nil, nil
}
splitted := strings.Split(bjjStr, "hez:")
if len(splitted) != 2 || len(splitted[1]) != 44 {
return nil, fmt.Errorf(
"Invalid %s, must follow this regex: ^hez:[A-Za-z0-9+/=]{44}$",
name)
}
decoded, err := base64.RawURLEncoding.DecodeString(splitted[1])
if err != nil {
return nil, fmt.Errorf(
"Invalid %s, error decoding base64 string: %s",
name, err.Error())
}
if len(decoded) != decodedLen {
return nil, fmt.Errorf(
"invalid %s, error decoding base64 string: unexpected byte array length",
name)
}
bjjBytes := [decodedLen - 1]byte{}
copy(bjjBytes[:decodedLen-1], decoded[:decodedLen-1])
sum := bjjBytes[0]
for i := 1; i < len(bjjBytes); i++ {
sum += bjjBytes[i]
}
if decoded[decodedLen-1] != sum {
return nil, fmt.Errorf("invalid %s, checksum failed",
name)
}
bjjComp := babyjub.PublicKeyComp(bjjBytes)
bjj, err := bjjComp.Decompress()
if err != nil {
return nil, fmt.Errorf(
"invalid %s, error decompressing public key: %s",
name, err.Error())
}
return bjj, nil
return hezStringToBJJ(bjjStr, name)
}
func parseQueryTxType(c querier) (*common.TxType, error) {
@@ -302,3 +257,56 @@ func stringToUint(uintStr, name string, dflt *uint, min, max uint) (*uint, error
}
return dflt, nil
}
func hezStringToEthAddr(addrStr, name string) (*ethCommon.Address, error) {
if addrStr == "" {
return nil, nil
}
splitted := strings.Split(addrStr, "hez:")
if len(splitted) != 2 || len(splitted[1]) != 42 {
return nil, fmt.Errorf(
"Invalid %s, must follow this regex: ^hez:0x[a-fA-F0-9]{40}$", name)
}
var addr ethCommon.Address
err := addr.UnmarshalText([]byte(splitted[1]))
return &addr, err
}
func hezStringToBJJ(bjjStr, name string) (*babyjub.PublicKey, error) {
const decodedLen = 33
splitted := strings.Split(bjjStr, "hez:")
if len(splitted) != 2 || len(splitted[1]) != 44 {
return nil, fmt.Errorf(
"Invalid %s, must follow this regex: ^hez:[A-Za-z0-9+/=]{44}$",
name)
}
decoded, err := base64.RawURLEncoding.DecodeString(splitted[1])
if err != nil {
return nil, fmt.Errorf(
"Invalid %s, error decoding base64 string: %s",
name, err.Error())
}
if len(decoded) != decodedLen {
return nil, fmt.Errorf(
"invalid %s, error decoding base64 string: unexpected byte array length",
name)
}
bjjBytes := [decodedLen - 1]byte{}
copy(bjjBytes[:decodedLen-1], decoded[:decodedLen-1])
sum := bjjBytes[0]
for i := 1; i < len(bjjBytes); i++ {
sum += bjjBytes[i]
}
if decoded[decodedLen-1] != sum {
return nil, fmt.Errorf("invalid %s, checksum failed",
name)
}
bjjComp := babyjub.PublicKeyComp(bjjBytes)
bjj, err := bjjComp.Decompress()
if err != nil {
return nil, fmt.Errorf(
"invalid %s, error decompressing public key: %s",
name, err.Error())
}
return bjj, nil
}