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Implemented keva_group_leave.

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This commit is contained in:
Just Wonder 2020-06-20 13:51:15 -07:00
parent f175979d91
commit 93855108e8
2 changed files with 95 additions and 3 deletions
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94
src/wallet/rpckeva.cpp
View File

@ -471,7 +471,7 @@ UniValue keva_group_join(const JSONRPCRequest& request)
if (request.fHelp || request.params.size() != 2) {
throw std::runtime_error (
"keva_group_join \"my_namespace\" \"other_namespace\"\n"
"\nInsert or update a key value pair in the given namespace.\n"
"\nJoin the other namespace, so that the data in both namespaces can be combined. See keva_group_leave.\n"
+ HelpRequiringPassphrase (pwallet) +
"\nArguments:\n"
"1. \"my_namespace\" (string, required) the namespace to join to <other_namespace>\n"
@ -501,7 +501,14 @@ UniValue keva_group_join(const JSONRPCRequest& request)
throw JSONRPCError (RPC_INVALID_PARAMETER, "invalid namespace id for other_namespace");
}
//TODO: check other_namespace exists.
// Check other_namespace exists.
{
LOCK(cs_main);
CKevaData data;
if (!pcoinsTip->GetName(otherNamespace, ValtypeFromString(CKevaScript::KEVA_DISPLAY_NAME_KEY), data)) {
throw JSONRPCError (RPC_INVALID_PARAMETER, "other_namespace does not exist");
}
}
EnsureWalletIsUnlocked(pwallet);
@ -536,3 +543,86 @@ UniValue keva_group_join(const JSONRPCRequest& request)
obj.pushKV("txid", wtx.GetHash().GetHex());
return obj;
}
UniValue keva_group_leave(const JSONRPCRequest& request)
{
CWallet* const pwallet = GetWalletForJSONRPCRequest(request);
if (!EnsureWalletIsAvailable (pwallet, request.fHelp)) {
return NullUniValue;
}
if (request.fHelp || request.params.size() != 2) {
throw std::runtime_error (
"keva_group_leave \"my_namespace\" \"other_namespace\"\n"
"\nLeave the other namespace so that the data are not to be combined with it. See keva_group_join.\n"
+ HelpRequiringPassphrase (pwallet) +
"\nArguments:\n"
"1. \"my_namespace\" (string, required) the namespace to leave <other_namespace>\n"
"2. \"other_namespace\" (string, required) the target namespace to leave\n"
"\nResult:\n"
"\"txid\" (string) the keva_put's txid\n"
"\nExamples:\n"
+ HelpExampleCli ("keva_group_leave", "\"my_namespace\", \"other_namespace\"")
);
}
RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VSTR});
RPCTypeCheckArgument(request.params[0], UniValue::VSTR);
RPCTypeCheckArgument(request.params[1], UniValue::VSTR);
ObserveSafeMode ();
const std::string myNamespaceStr = request.params[0].get_str();
valtype myNamespace;
if (!DecodeKevaNamespace(myNamespaceStr, Params(), myNamespace)) {
throw JSONRPCError (RPC_INVALID_PARAMETER, "invalid namespace id for my_namespace");
}
const std::string otherNamespaceStr = request.params[1].get_str();
valtype otherNamespace;
if (!DecodeKevaNamespace(otherNamespaceStr, Params(), otherNamespace)) {
throw JSONRPCError (RPC_INVALID_PARAMETER, "invalid namespace id for other_namespace");
}
// Check other_namespace exists.
{
LOCK(cs_main);
CKevaData data;
if (!pcoinsTip->GetName(otherNamespace, ValtypeFromString(CKevaScript::KEVA_DISPLAY_NAME_KEY), data)) {
throw JSONRPCError (RPC_INVALID_PARAMETER, "other_namespace does not exist");
}
}
EnsureWalletIsUnlocked(pwallet);
COutput output;
if (!pwallet->FindKevaCoin(output, myNamespaceStr)) {
throw JSONRPCError (RPC_TRANSACTION_ERROR, "this namespace can not be updated");
}
const COutPoint outp(output.tx->GetHash(), output.i);
const CTxIn txIn(outp);
CReserveKey keyName(pwallet);
CPubKey pubKeyReserve;
const bool ok = keyName.GetReservedKey(pubKeyReserve, true);
assert(ok);
CKeyID keyId = pubKeyReserve.GetID();
CScript redeemScript = GetScriptForDestination(WitnessV0KeyHash(pubKeyReserve.GetID()));
CScriptID scriptHash = CScriptID(redeemScript);
CScript addrName = GetScriptForDestination(scriptHash);
valtype key = ValtypeFromString(CKevaData::ASSOCIATE_PREFIX + otherNamespaceStr);
const CScript kevaScript = CKevaScript::buildKevaDelete(addrName, myNamespace, key);
CCoinControl coinControl;
CWalletTx wtx;
valtype empty;
SendMoneyToScript(pwallet, kevaScript, &txIn, empty,
KEVA_LOCKED_AMOUNT, false, wtx, coinControl);
keyName.KeepKey();
UniValue obj(UniValue::VOBJ);
obj.pushKV("txid", wtx.GetHash().GetHex());
return obj;
}

4
src/wallet/rpcwallet.cpp
View File

@ -3723,6 +3723,7 @@ extern UniValue keva_get(const JSONRPCRequest& request);
extern UniValue keva_list_namespaces(const JSONRPCRequest& request);
extern UniValue keva_pending(const JSONRPCRequest& request);
extern UniValue keva_group_join(const JSONRPCRequest& request);
extern UniValue keva_group_leave(const JSONRPCRequest& request);
static const CRPCCommand commands[] =
{ // category name actor (function) argNames
@ -3788,7 +3789,8 @@ static const CRPCCommand commands[] =
{ "kevacoin", "keva_put", &keva_put, {"namespace", "key", "value"} },
{ "kevacoin", "keva_delete", &keva_delete, {"namespace", "key"} },
{ "kevacoin", "keva_pending", &keva_pending, {"namespace"} },
{ "kevacoin", "keva_group_join", &keva_group_join, {"my_namespace", "other_namespace"} }
{ "kevacoin", "keva_group_join", &keva_group_join, {"my_namespace", "other_namespace"} },
{ "kevacoin", "keva_group_leave", &keva_group_leave, {"my_namespace", "other_namespace"} }
};
void RegisterWalletRPCCommands(CRPCTable &t)