Detect non-valid strings for blockheight
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parent
3908590578
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aa71e27a3b
@ -127,6 +127,11 @@ func CopyBytes(b []byte) (copiedBytes []byte) {
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return
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}
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func HasHexPrefix(str string) bool {
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l := len(str)
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return l >= 2 && str[0:2] == "0x"
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}
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func IsHex(str string) bool {
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l := len(str)
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return l >= 4 && l%2 == 0 && str[0:2] == "0x"
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@ -41,7 +41,11 @@ func blockHeight(raw interface{}, number *int64) error {
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case "pending":
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*number = -2
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default:
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*number = common.String2Big(str).Int64()
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if common.HasHexPrefix(str) {
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*number = common.String2Big(str).Int64()
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} else {
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return NewInvalidTypeError("blockNumber", "is not a valid string")
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}
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}
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return nil
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