wallet2_api: add API for tx notes

src/wallet/api/pending_transaction.cpp

@@ -69,6 +69,14 @@ string PendingTransactionImpl::errorString() const
     return m_errorString;
 }
 
+std::vector<std::string> PendingTransactionImpl::txid() const
+{
+    std::vector<std::string> txid;
+    for (const auto &pt: m_pending_tx)
+        txid.push_back(epee::string_tools::pod_to_hex(cryptonote::get_transaction_hash(pt.tx)));
+    return txid;
+}
+
 bool PendingTransactionImpl::commit()
 {
 

src/wallet/api/pending_transaction.h

@@ -49,6 +49,7 @@ public:
     uint64_t amount() const;
     uint64_t dust() const;
     uint64_t fee() const;
+    std::vector<std::string> txid() const;
     // TODO: continue with interface;
 
 private:

src/wallet/api/wallet.cpp

@@ -707,6 +707,26 @@ void WalletImpl::setDefaultMixin(uint32_t arg)
     m_wallet->default_mixin(arg);
 }
 
+bool WalletImpl::setUserNote(const std::string &txid, const std::string &note)
+{
+    cryptonote::blobdata txid_data;
+    if(!epee::string_tools::parse_hexstr_to_binbuff(txid, txid_data))
+      return false;
+    const crypto::hash htxid = *reinterpret_cast<const crypto::hash*>(txid_data.data());
+
+    m_wallet->set_tx_note(htxid, note);
+    return true;
+}
+
+std::string WalletImpl::getUserNote(const std::string &txid) const
+{
+    cryptonote::blobdata txid_data;
+    if(!epee::string_tools::parse_hexstr_to_binbuff(txid, txid_data))
+      return "";
+    const crypto::hash htxid = *reinterpret_cast<const crypto::hash*>(txid_data.data());
+
+    return m_wallet->get_tx_note(htxid);
+}
 
 bool WalletImpl::connectToDaemon()
 {

src/wallet/api/wallet.h

@@ -97,6 +97,8 @@ public:
     virtual void setListener(WalletListener * l);
     virtual uint32_t defaultMixin() const;
     virtual void setDefaultMixin(uint32_t arg);
+    virtual bool setUserNote(const std::string &txid, const std::string &note);
+    virtual std::string getUserNote(const std::string &txid) const;
 
 private:
     void clearStatus();

src/wallet/wallet2_api.h

@@ -65,6 +65,7 @@ struct PendingTransaction
     virtual uint64_t amount() const = 0;
     virtual uint64_t dust() const = 0;
     virtual uint64_t fee() const = 0;
+    virtual std::vector<std::string> txid() const = 0;
 };
 
 /**
@@ -340,6 +341,20 @@ struct Wallet
      * \param arg
      */
     virtual void setDefaultMixin(uint32_t arg) = 0;
+
+    /*!
+     * \brief setUserNote - attach an arbitrary string note to a txid
+     * \param txid - the transaction id to attach the note to
+     * \param note - the note
+     * \return true if succesful, false otherwise
+     */
+    virtual bool setUserNote(const std::string &txid, const std::string &note) = 0;
+    /*!
+     * \brief getUserNote - return an arbitrary string note attached to a txid
+     * \param txid - the transaction id to attach the note to
+     * \return the attached note, or empty string if there is none
+     */
+    virtual std::string getUserNote(const std::string &txid) const = 0;
 };
 
 /**