add NetworkIDString() to chainparams

- returns the BIP70 network string
- use that new function in the core and GUI code and remove unused code
  and functions

src/chainparams.cpp

@@ -99,6 +99,7 @@ class CMainParams : public CChainParams {
 public:
     CMainParams() {
         networkID = CChainParams::MAIN;
+        strNetworkID = "main";
         // The message start string is designed to be unlikely to occur in normal data.
         // The characters are rarely used upper ASCII, not valid as UTF-8, and produce
         // a large 4-byte int at any alignment.
@@ -189,6 +190,7 @@ class CTestNetParams : public CMainParams {
 public:
     CTestNetParams() {
         networkID = CChainParams::TESTNET;
+        strNetworkID = "test";
         // The message start string is designed to be unlikely to occur in normal data.
         // The characters are rarely used upper ASCII, not valid as UTF-8, and produce
         // a large 4-byte int at any alignment.
@@ -240,6 +242,7 @@ class CRegTestParams : public CTestNetParams {
 public:
     CRegTestParams() {
         networkID = CChainParams::REGTEST;
+        strNetworkID = "regtest";
         pchMessageStart[0] = 0xfa;
         pchMessageStart[1] = 0xbf;
         pchMessageStart[2] = 0xb5;

src/chainparams.h

@@ -79,6 +79,8 @@ public:
      * until nGenProcLimit blocks are generated */
     bool MineBlocksOnDemand() const { return fMineBlocksOnDemand; }
     Network NetworkID() const { return networkID; }
+    /* Return the BIP70 network string (main, test or regtest) */
+    std::string NetworkIDString() const { return strNetworkID; }
     const vector<CDNSSeedData>& DNSSeeds() const { return vSeeds; }
     const std::vector<unsigned char>& Base58Prefix(Base58Type type) const { return base58Prefixes[type]; }
     const vector<CAddress>& FixedSeeds() const { return vFixedSeeds; }
@@ -102,6 +104,7 @@ protected:
     vector<CDNSSeedData> vSeeds;
     std::vector<unsigned char> base58Prefixes[MAX_BASE58_TYPES];
     Network networkID;
+    std::string strNetworkID;
     CBlock genesis;
     vector<CAddress> vFixedSeeds;
     bool fRequireRPCPassword;

src/qt/clientmodel.cpp

@@ -142,14 +142,6 @@ void ClientModel::updateAlert(const QString &hash, int status)
     emit alertsChanged(getStatusBarWarnings());
 }
 
-QString ClientModel::getNetworkName() const
-{
-    QString netname(QString::fromStdString(Params().DataDir()));
-    if(netname.isEmpty())
-        netname = "main";
-    return netname;
-}
-
 bool ClientModel::inInitialBlockDownload() const
 {
     return IsInitialBlockDownload();

src/qt/clientmodel.h

@@ -56,8 +56,6 @@ public:
     double getVerificationProgress() const;
     QDateTime getLastBlockDate() const;
 
-    //! Return network (main, testnet3, regtest)
-    QString getNetworkName() const;
     //! Return true if core is doing initial block download
     bool inInitialBlockDownload() const;
     //! Return true if core is importing blocks

src/qt/paymentserver.cpp

@@ -490,17 +490,6 @@ bool PaymentServer::readPaymentRequest(const QString& filename, PaymentRequestPl
     return request.parse(data);
 }
 
-std::string PaymentServer::mapNetworkIdToName(CChainParams::Network networkId)
-{
-    if (networkId == CChainParams::MAIN)
-        return "main";
-    if (networkId == CChainParams::TESTNET)
-        return "test";
-    if (networkId == CChainParams::REGTEST)
-        return "regtest";
-    return "";
-}
-
 bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoinsRecipient& recipient)
 {
     if (!optionsModel)
@@ -510,7 +499,7 @@ bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoins
         const payments::PaymentDetails& details = request.getDetails();
 
         // Payment request network matches client network?
-        if (details.network() != mapNetworkIdToName(Params().NetworkID()))
+        if (details.network() != Params().NetworkIDString())
         {
             emit message(tr("Payment request rejected"), tr("Payment request network doesn't match client network."),
                 CClientUIInterface::MSG_ERROR);

src/qt/paymentserver.h

@@ -118,7 +118,6 @@ protected:
 
 private:
     static bool readPaymentRequest(const QString& filename, PaymentRequestPlus& request);
-    std::string mapNetworkIdToName(CChainParams::Network networkId);
     bool processPaymentRequest(PaymentRequestPlus& request, SendCoinsRecipient& recipient);
     void fetchRequest(const QUrl& url);
 

src/qt/rpcconsole.cpp

@@ -316,7 +316,7 @@ void RPCConsole::setClientModel(ClientModel *model)
         ui->buildDate->setText(model->formatBuildDate());
         ui->startupTime->setText(model->formatClientStartupTime());
 
-        ui->networkName->setText(model->getNetworkName());
+        ui->networkName->setText(QString::fromStdString(Params().NetworkIDString()));
     }
 }
 

src/rpcblockchain.cpp

@@ -451,10 +451,7 @@ Value getblockchaininfo(const Array& params, bool fHelp)
         );
 
     Object obj;
-    std::string chain = Params().DataDir();
+    obj.push_back(Pair("chain",                 Params().NetworkIDString()));
-    if(chain.empty())
-        chain = "main";
-    obj.push_back(Pair("chain",         chain));
     obj.push_back(Pair("blocks",                (int)chainActive.Height()));
     obj.push_back(Pair("bestblockhash",         chainActive.Tip()->GetBlockHash().GetHex()));
     obj.push_back(Pair("difficulty",            (double)GetDifficulty()));