[BROKEN] Add issuance wallet RPCs

Author: stevenroose

src/rpc/client.cpp

@@ -167,8 +167,17 @@ static const CRPCConvertParam vRPCConvertParams[] =
     { "combineblocksigs", 1, "signatures" },
     { "sendtomainchain", 1, "amount" },
     { "sendtomainchain", 2, "subtractfeefromamount" },
+    { "dumpissuanceblindingkey", 1, "vin" },
+    { "importissuanceblindingkey", 1, "vin" },
     { "rawissueasset", 1, "issuances" },
     { "rawreissueasset", 1, "reissuances" },
+    { "getnewblockhex", 0, "required_age" },
+    { "testproposedblock", 1, "acceptnonstd" },
+    { "issueasset", 0, "assetamount" },
+    { "issueasset", 1, "tokenamount" },
+    { "issueasset", 2, "blind" },
+    { "reissueasset", 1, "assetamount" },
+    { "initpegoutwallet", 1, "bip32_counter"},
     { "rawblindrawtransaction", 1, "inputblinder" },
     { "rawblindrawtransaction", 2, "inputamount" },
     { "rawblindrawtransaction", 3, "inputasset" },
@@ -177,6 +186,7 @@ static const CRPCConvertParam vRPCConvertParams[] =
     { "blindrawtransaction", 1, "assetcommitments" },
     { "blindrawtransaction", 2, "ignoreblindfail" },
     { "blindrawtransaction", 3, "blind_issuances" },
+    { "destroyamount", 1, "amount" },
     { "sendmany", 7 , "output_assets" },
     { "sendmany", 8 , "ignoreblindfail" },
     { "sendtoaddress", 9 , "ignoreblindfail" },

src/wallet/rpcdump.cpp

@@ -1400,6 +1400,81 @@ UniValue importblindingkey(const JSONRPCRequest& request)
     return NullUniValue;
 }
 
+UniValue importissuanceblindingkey(const JSONRPCRequest& request)
+{
+    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
+    CWallet* const pwallet = wallet.get();
+
+    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
+        return NullUniValue;
+    }
+
+    if (request.fHelp || request.params.size() != 3)
+        throw std::runtime_error(
+            "importissuanceblindingkey \"txid\" vin \"blindingkey\"\n"
+            "\nImports a private blinding key in hex for an asset issuance."
+            "\nArguments:\n"
+
+            "1. \"txid\"          (string, required) The transaction id of the issuance\n"
+            "2. \"vin\"           (numeric, required) The input number of the issuance in the transaction.\n"
+            "3. \"blindingkey\"           (string, required) The blinding key in hex\n"
+            "\nExample:\n"
+            + HelpExampleCli("importblindingkey", "\"my blinded CT address\" <blindinghex>")
+        );
+
+    LOCK2(cs_main, pwallet->cs_wallet);
+
+    if (!request.params[0].isStr() || !IsHex(request.params[0].get_str()) || request.params[0].get_str().size() != 64) {
+        throw JSONRPCError(RPC_TYPE_ERROR, "First argument must be a txid string");
+    }
+    std::string txidstr = request.params[0].get_str();
+    uint256 txid;
+    txid.SetHex(txidstr);
+
+    uint32_t vindex;
+    if (!request.params[1].isNum()) {
+        throw JSONRPCError(RPC_TYPE_ERROR, "vin must be an integer");
+    }
+    vindex = request.params[1].get_int();
+
+    if (!request.params[2].isStr() || !IsHex(request.params[2].get_str()) || request.params[2].get_str().size() != 64) {
+        throw JSONRPCError(RPC_TYPE_ERROR, "blinding key must be a hex string of length 64");
+    }
+
+    std::vector<unsigned char> keydata = ParseHex(request.params[2].get_str());
+    if (keydata.size() != 32) {
+        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid hexadecimal key length");
+    }
+    CKey key;
+    key.Set(keydata.begin(), keydata.end(), true);
+
+    // Process as issuance key dump
+    for (std::map<uint256, CWalletTx>::const_iterator it = pwallet->mapWallet.begin(); it != pwallet->mapWallet.end(); ++it) {
+        const CWalletTx* pcoin = &(*it).second;
+        if (pcoin->GetHash() != txid) {
+            continue;
+        }
+        if (pcoin->tx->vin.size() <= vindex) {
+            throw JSONRPCError(RPC_WALLET_ERROR, "Transaction is in wallet but vin does not exist");
+        }
+        if (pcoin->tx->vin[vindex].assetIssuance.IsNull()) {
+            throw JSONRPCError(RPC_WALLET_ERROR, "Transaction input has no issuance");
+        }
+
+        // Import the key in that slot
+        uint256 keyval;
+        memcpy(keyval.begin(), &keydata[0], 32);
+        CScript blindingScript(CScript() << OP_RETURN << std::vector<unsigned char>(pcoin->tx->vin[vindex].prevout.hash.begin(), pcoin->tx->vin[vindex].prevout.hash.end()) << pcoin->tx->vin[vindex].prevout.n);
+        if (!pwallet->AddSpecificBlindingKey(CScriptID(blindingScript), keyval)) {
+            throw JSONRPCError(RPC_WALLET_ERROR, "Failed to import blinding key");
+        }
+        pwallet->MarkDirty();
+        return NullUniValue;
+    }
+
+    throw JSONRPCError(RPC_WALLET_ERROR, "Transaction is unknown to wallet.");
+}
+
 UniValue dumpblindingkey(const JSONRPCRequest& request)
 {
     std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
@@ -1443,3 +1518,66 @@ UniValue dumpblindingkey(const JSONRPCRequest& request)
 
     throw JSONRPCError(RPC_WALLET_ERROR, "Blinding key for address is unknown");
 }
+
+UniValue dumpissuanceblindingkey(const JSONRPCRequest& request)
+{
+    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
+    CWallet* const pwallet = wallet.get();
+
+    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
+        return NullUniValue;
+    }
+
+    if (request.fHelp || request.params.size() != 2)
+        throw std::runtime_error(
+            "dumpissuanceblindingkey \"txid\" vin\n"
+            "\nDumps the private blinding key for an asset issuance in wallet."
+            "\nArguments:\n"
+            "1. \"txid\"          (string, required) The transaction id of the issuance\n"
+            "2. \"vin\"           (numeric, required) The input number of the issuance in the transaction.\n"
+            "\nResult:\n"
+            "\"blindingkey\"      (string) The blinding key\n"
+            "\nExample:\n"
+            + HelpExampleCli("dumpissuanceblindingkey", "\"<txid>\", 0")
+        );
+
+    LOCK2(cs_main, pwallet->cs_wallet);
+
+    if (!request.params[0].isStr() || !IsHex(request.params[0].get_str()) || request.params[0].get_str().size() != 64) {
+        throw JSONRPCError(RPC_TYPE_ERROR, "First argument must be a txid string");
+    }
+    std::string txidstr = request.params[0].get_str();
+    uint256 txid;
+    txid.SetHex(txidstr);
+
+    uint32_t vindex;
+    if (!request.params[1].isNum()) {
+        throw JSONRPCError(RPC_TYPE_ERROR, "vin must be an integer");
+    }
+    vindex = request.params[1].get_int();
+
+    // Process as issuance key dump
+    for (std::map<uint256, CWalletTx>::const_iterator it = pwallet->mapWallet.begin(); it != pwallet->mapWallet.end(); ++it) {
+        const CWalletTx* pcoin = &(*it).second;
+        if (pcoin->tx->GetHash() != txid) {
+            continue;
+        }
+        if (pcoin->tx->vin.size() <= vindex) {
+            throw JSONRPCError(RPC_WALLET_ERROR, "Transaction is in wallet but vin does not exist");
+        }
+        if (pcoin->tx->vin[vindex].assetIssuance.IsNull()) {
+            throw JSONRPCError(RPC_WALLET_ERROR, "Transaction input has no issuance");
+        }
+        // We can actually deblind the input
+        if (pcoin->GetIssuanceAmount(vindex, false) != -1 ) {
+            CScript blindingScript(CScript() << OP_RETURN << std::vector<unsigned char>(pcoin->tx->vin[vindex].prevout.hash.begin(), pcoin->tx->vin[vindex].prevout.hash.end()) << pcoin->tx->vin[vindex].prevout.n);
+            CKey key;
+            key = pwallet->GetBlindingKey(&blindingScript);
+            return HexStr(key.begin(), key.end());
+        } else {
+            // We don't know how to deblind this using our wallet
+            throw JSONRPCError(RPC_WALLET_ERROR, "Unable to unblind issuance with wallet blinding key.");
+        }
+    }
+    throw JSONRPCError(RPC_WALLET_ERROR, "Transaction is unknown to wallet.");
+}