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Add common validator (#510)

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Fixes #512
This commit is contained in:
cyan317
2023-02-15 13:54:53 +00:00
committed by GitHub
parent 08f7a7a476
commit b7fa9b09fe
3 changed files with 98 additions and 0 deletions
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40
src/rpc/common/Validators.cpp
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@@ -17,10 +17,12 @@
*/
//==============================================================================
#include <ripple/basics/base_uint.h>
#include <rpc/common/Validators.h>
#include <boost/json/value.hpp>
#include <charconv>
#include <string_view>
namespace RPCng::validation {
@@ -86,4 +88,42 @@ CustomValidator::verify(boost::json::value const& value, std::string_view key)
return validator_(value.as_object().at(key.data()), key);
}
[[nodiscard]] bool
checkIsU32Numeric(std::string_view sv)
{
uint32_t unused;
auto [_, ec] = std::from_chars(sv.data(), sv.data() + sv.size(), unused);
return ec == std::errc();
}
CustomValidator LedgerHashValidator = CustomValidator{
[](boost::json::value const& value, std::string_view key) -> MaybeError {
if (!value.is_string())
{
return Error{RPC::Status{
RPC::RippledError::rpcINVALID_PARAMS, "ledgerHashNotString"}};
}
ripple::uint256 ledgerHash;
if (!ledgerHash.parseHex(value.as_string().c_str()))
return Error{RPC::Status{
RPC::RippledError::rpcINVALID_PARAMS, "ledgerHashMalformed"}};
return MaybeError{};
}};
CustomValidator LedgerIndexValidator = CustomValidator{
[](boost::json::value const& value, std::string_view key) -> MaybeError {
auto err = Error{RPC::Status{
RPC::RippledError::rpcINVALID_PARAMS, "ledgerIndexMalformed"}};
if (!value.is_string() && !(value.is_uint64() || value.is_int64()))
{
return err;
}
if (value.is_string() && value.as_string() != "validated" &&
!checkIsU32Numeric(value.as_string().c_str()))
{
return err;
}
return MaybeError{};
}};
} // namespace RPCng::validation