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Simplify fee handling during transaction submission:

Browse Source 
Avoid custom overflow code; simply use 128-bit math to
maintain precision and return a saturated 64-bit value
as the final result.

Disallow use of negative values in the `fee_mult_max`
and `fee_div_max` fields. This change could potentially
cause submissions with negative values that would have
previously succeeded to now fail.
This commit is contained in:
Nik Bougalis
2017-01-18 03:33:46 -08:00
parent c7de7950c4
commit 8345475bc3
8 changed files with 135 additions and 106 deletions
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64
src/test/rpc/JSONRPC_test.cpp
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@@ -232,8 +232,8 @@ R"({
}
})",
{
"Invalid field 'fee_mult_max', not an integer.",
"Invalid field 'fee_mult_max', not an integer.",
"Invalid field 'fee_mult_max', not a positive integer.",
"Invalid field 'fee_mult_max', not a positive integer.",
"Missing field 'tx_json.Fee'.",
"Missing field 'tx_json.SigningPubKey'."}},
@@ -253,8 +253,8 @@ R"({
}
})",
{
"Invalid field 'fee_div_max', not an integer.",
"Invalid field 'fee_div_max', not an integer.",
"Invalid field 'fee_div_max', not a positive integer.",
"Invalid field 'fee_div_max', not a positive integer.",
"Missing field 'tx_json.Fee'.",
"Missing field 'tx_json.SigningPubKey'."}},
@@ -315,8 +315,8 @@ R"({
}
})",
{
"Invalid field 'fee_div_max', not non-zero.",
"Invalid field 'fee_div_max', not non-zero.",
"Invalid field 'fee_div_max', not a positive integer.",
"Invalid field 'fee_div_max', not a positive integer.",
"Missing field 'tx_json.Fee'.",
"Missing field 'tx_json.SigningPubKey'."}},
@@ -2111,6 +2111,55 @@ public:
req[jss::tx_json][jss::Fee] == 3333);
}
{
// 9: negative mult
Json::Value req;
Json::Reader().parse(R"({
"fee_mult_max" : -5,
"x_queue_okay" : true,
"tx_json" : { }
})", req);
Json::Value result =
checkFee(req, Role::ADMIN, true,
env.app().config(), feeTrack,
env.app().getTxQ(), env.current());
BEAST_EXPECT(RPC::contains_error(result));
}
{
// 9: negative div
Json::Value req;
Json::Reader().parse(R"({
"fee_div_max" : -2,
"x_queue_okay" : true,
"tx_json" : { }
})", req);
Json::Value result =
checkFee(req, Role::ADMIN, true,
env.app().config(), feeTrack,
env.app().getTxQ(), env.current());
BEAST_EXPECT(RPC::contains_error(result));
}
{
// 9: negative mult & div
Json::Value req;
Json::Reader().parse(R"({
"fee_mult_max" : -2,
"fee_div_max" : -3,
"x_queue_okay" : true,
"tx_json" : { }
})", req);
Json::Value result =
checkFee(req, Role::ADMIN, true,
env.app().config(), feeTrack,
env.app().getTxQ(), env.current());
BEAST_EXPECT(RPC::contains_error(result));
}
}
// A function that can be called as though it would process a transaction.
@@ -2219,8 +2268,7 @@ public:
if (RPC::contains_error (result))
errStr = result["error_message"].asString ();
std::string const expStr (txnTest.expMsg[get<3>(testFunc)]);
BEAST_EXPECT(errStr == expStr);
BEAST_EXPECT(errStr == txnTest.expMsg[get<3>(testFunc)]);
}
}
}