wallet2_api: add ring api

src/wallet/api/wallet.cpp

@@ -1952,6 +1952,44 @@ bool WalletImpl::unblackballOutput(const std::string &pubkey)
     return true;
 }
 
+bool WalletImpl::getRing(const std::string &key_image, std::vector<uint64_t> &ring) const
+{
+    crypto::key_image raw_key_image;
+    if (!epee::string_tools::hex_to_pod(key_image, raw_key_image))
+    {
+        m_status = Status_Error;
+        m_errorString = tr("Failed to parse key image");
+        return false;
+    }
+    bool ret = m_wallet->get_ring(raw_key_image, ring);
+    if (!ret)
+    {
+        m_status = Status_Error;
+        m_errorString = tr("Failed to get ring");
+        return false;
+    }
+    return true;
+}
+
+bool WalletImpl::setRing(const std::string &key_image, const std::vector<uint64_t> &ring, bool relative)
+{
+    crypto::key_image raw_key_image;
+    if (!epee::string_tools::hex_to_pod(key_image, raw_key_image))
+    {
+        m_status = Status_Error;
+        m_errorString = tr("Failed to parse key image");
+        return false;
+    }
+    bool ret = m_wallet->set_ring(raw_key_image, ring, relative);
+    if (!ret)
+    {
+        m_status = Status_Error;
+        m_errorString = tr("Failed to set ring");
+        return false;
+    }
+    return true;
+}
+
 } // namespace
 
 namespace Bitmonero = Monero;

src/wallet/api/wallet.h

@@ -165,6 +165,8 @@ public:
     virtual bool lightWalletImportWalletRequest(std::string &payment_id, uint64_t &fee, bool &new_request, bool &request_fulfilled, std::string &payment_address, std::string &status);
     virtual bool blackballOutputs(const std::vector<std::string> &pubkeys, bool add);
     virtual bool unblackballOutput(const std::string &pubkey);
+    virtual bool getRing(const std::string &key_image, std::vector<uint64_t> &ring) const;
+    virtual bool setRing(const std::string &key_image, const std::vector<uint64_t> &ring, bool relative);
 
 private:
     void clearStatus() const;

src/wallet/api/wallet2_api.h

@@ -763,6 +763,12 @@ struct Wallet
     //! unblackballs an output
     virtual bool unblackballOutput(const std::string &pubkey) = 0;
 
+    //! gets the ring used for a key image, if any
+    virtual bool getRing(const std::string &key_image, std::vector<uint64_t> &ring) const = 0;
+
+    //! sets the ring used for a key image
+    virtual bool setRing(const std::string &key_image, const std::vector<uint64_t> &ring, bool relative) = 0;
+
     //! Light wallet authenticate and login
     virtual bool lightWalletLogin(bool &isNewWallet) const = 0;