From 7fa30e45ccb7c0ba9d499c7e26bc23541614d114 Mon Sep 17 00:00:00 2001
From: MoneroOcean <support@moneroocean.stream>
Date: Sun, 25 Jun 2023 00:25:37 +0000
Subject: [PATCH] ZEPH support

---
 ..._record_zeph.h => zephyr_pricing_record.h} |  14 +-
 src/zephyr_oracle/asset_types.h               |  77 +++++++++
 src/zephyr_oracle/pricing_record.cpp          | 146 ++++++++++++++++++
 src/zephyr_oracle/pricing_record.h            |  95 ++++++++++++
 4 files changed, 325 insertions(+), 7 deletions(-)
 rename src/serialization/{pricing_record_zeph.h => zephyr_pricing_record.h} (81%)
 create mode 100644 src/zephyr_oracle/asset_types.h
 create mode 100644 src/zephyr_oracle/pricing_record.cpp
 create mode 100644 src/zephyr_oracle/pricing_record.h

diff --git a/src/serialization/pricing_record_zeph.h b/src/serialization/zephyr_pricing_record.h
similarity index 81%
rename from src/serialization/pricing_record_zeph.h
rename to src/serialization/zephyr_pricing_record.h
index 09b98fd..e40572b 100644
--- a/src/serialization/pricing_record_zeph.h
+++ b/src/serialization/zephyr_pricing_record.h
@@ -33,20 +33,20 @@
 #include <vector>
 
 #include "serialization.h"
-#include "oracle/pricing_record.h"
+#include "zephyr_oracle/pricing_record.h"
 #include "cryptonote_config.h"
 
 // read
 template <template <bool> class Archive>
-bool do_serialize(Archive<false> &ar, oracle::pricing_record &pr, uint8_t version)
+bool do_serialize(Archive<false> &ar, zephyr_oracle::pricing_record &pr, uint8_t version)
 {
   // very basic sanity check
-  if (ar.remaining_bytes() < sizeof(oracle::pricing_record)) {
+  if (ar.remaining_bytes() < sizeof(zephyr_oracle::pricing_record)) {
     ar.stream().setstate(std::ios::failbit);
     return false;
   }
 
-  ar.serialize_blob(&pr, sizeof(oracle::pricing_record), "");
+  ar.serialize_blob(&pr, sizeof(zephyr_oracle::pricing_record), "");
   if (!ar.stream().good())
     return false;
   
@@ -55,11 +55,11 @@ bool do_serialize(Archive<false> &ar, oracle::pricing_record &pr, uint8_t versio
 
 // write
 template <template <bool> class Archive>
-bool do_serialize(Archive<true> &ar, oracle::pricing_record &pr, uint8_t version)
+bool do_serialize(Archive<true> &ar, zephyr_oracle::pricing_record &pr, uint8_t version)
 {
   ar.begin_string();
 
-  ar.serialize_blob(&pr, sizeof(oracle::pricing_record), "");
+  ar.serialize_blob(&pr, sizeof(zephyr_oracle::pricing_record), "");
   
   if (!ar.stream().good())
     return false;
@@ -67,4 +67,4 @@ bool do_serialize(Archive<true> &ar, oracle::pricing_record &pr, uint8_t version
   return true;
 }
 
-BLOB_SERIALIZER(oracle::pricing_record);
\ No newline at end of file
+BLOB_SERIALIZER(zephyr_oracle::pricing_record);
diff --git a/src/zephyr_oracle/asset_types.h b/src/zephyr_oracle/asset_types.h
new file mode 100644
index 0000000..ca5f670
--- /dev/null
+++ b/src/zephyr_oracle/asset_types.h
@@ -0,0 +1,77 @@
+// Copyright (c) 2021, Haven Protocol
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+#include <string>
+#include <vector>
+
+namespace zephyr_oracle {
+
+  const std::vector<std::string> ASSET_TYPES = {"ZEPH", "ZEPHUSD", "ZEPHRSV"};
+
+  class asset_type_counts
+  {
+
+    public:
+
+      // Fields 
+      uint64_t ZEPH;
+      uint64_t ZEPHUSD;
+      uint64_t ZEPHRSV;
+
+      asset_type_counts() noexcept
+        : ZEPH(0)
+        , ZEPHUSD(0)
+        , ZEPHRSV(0)
+      {
+      }
+
+      uint64_t operator[](const std::string asset_type) const noexcept
+      {
+        if (asset_type == "ZEPH") {
+          return ZEPH;
+        } else if (asset_type == "ZEPHUSD") {
+          return ZEPHUSD;
+        } else if (asset_type == "ZEPHRSV") {
+          return ZEPHRSV;
+        }
+
+        return 0;
+      }
+
+      void add(const std::string asset_type, const uint64_t val)
+      {
+        if (asset_type == "ZEPH") {
+          ZEPH += val;
+        } else if (asset_type == "ZEPHUSD") {
+          ZEPHUSD += val;
+        } else if (asset_type == "ZEPHRSV") {
+          ZEPHRSV += val;
+        }
+      }
+  };
+}
diff --git a/src/zephyr_oracle/pricing_record.cpp b/src/zephyr_oracle/pricing_record.cpp
new file mode 100644
index 0000000..e0c472e
--- /dev/null
+++ b/src/zephyr_oracle/pricing_record.cpp
@@ -0,0 +1,146 @@
+// Copyright (c) 2019, Haven Protocol
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Portions of this code based upon code Copyright (c) 2019, The Monero Project
+
+#include "pricing_record.h"
+
+#include "serialization/keyvalue_serialization.h"
+#include "storages/portable_storage.h"
+
+#include "string_tools.h"
+namespace zephyr_oracle
+{
+
+  namespace
+  {
+    struct pr_serialized
+    {
+      uint64_t zEPHUSD;
+      uint64_t zEPHRSV;
+      uint64_t timestamp;
+
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE(zEPHUSD)
+        KV_SERIALIZE(zEPHRSV)
+        KV_SERIALIZE(timestamp)
+      END_KV_SERIALIZE_MAP()
+    };
+  }
+  
+  pricing_record::pricing_record() noexcept
+    : zEPHUSD(0)
+    , zEPHRSV(0)
+    , timestamp(0) {}
+
+  bool pricing_record::_load(epee::serialization::portable_storage& src, epee::serialization::section* hparent)
+  {
+    pr_serialized in{};
+    if (in._load(src, hparent))
+    {
+      // Copy everything into the local instance
+      zEPHUSD = in.zEPHUSD;
+      zEPHRSV = in.zEPHRSV;
+      timestamp = in.timestamp;
+      return true;
+    }
+
+    return false;
+  }
+
+  bool pricing_record::store(epee::serialization::portable_storage& dest, epee::serialization::section* hparent) const
+  {
+    const pr_serialized out{zEPHUSD,zEPHRSV,timestamp};
+    return out.store(dest, hparent);
+  }
+
+  pricing_record::pricing_record(const pricing_record& orig) noexcept
+    : zEPHUSD(orig.zEPHUSD)
+    , zEPHRSV(orig.zEPHRSV)
+    , timestamp(orig.timestamp) {}
+
+  pricing_record& pricing_record::operator=(const pricing_record& orig) noexcept
+  {
+    zEPHUSD = orig.zEPHUSD;
+    zEPHRSV = orig.zEPHRSV;
+    timestamp = orig.timestamp;
+    return *this;
+  }
+
+  uint64_t pricing_record::operator[](const std::string& asset_type) const
+  {
+    if (asset_type == "ZEPH") {
+      return zEPHUSD; // ZEPH spot price
+    } else if (asset_type == "ZEPHUSD") {
+      return 1000000000000; // 1
+    } else if (asset_type == "ZEPHRSV") {
+      return zEPHRSV; // ZEPHRSV spot price
+    } else {
+     CHECK_AND_ASSERT_THROW_MES(false, "Asset type doesn't exist in pricing record!");
+    }
+  }
+  
+  bool pricing_record::equal(const pricing_record& other) const noexcept
+  {
+    return ((zEPHUSD == other.zEPHUSD) &&
+      (zEPHRSV == other.zEPHRSV) &&
+	    (timestamp == other.timestamp));
+  }
+
+  bool pricing_record::empty() const noexcept
+  {
+    const pricing_record empty_pr = zephyr_oracle::pricing_record();
+    return (*this).equal(empty_pr);
+  }
+
+  bool pricing_record::valid(uint32_t hf_version, uint64_t bl_timestamp, uint64_t last_bl_timestamp) const 
+  {
+    if (hf_version < 3) {
+      if (!this->empty())
+        return false;
+    }
+
+    if (this->empty())
+        return true;
+  
+    // validate the timestmap
+    if (this->timestamp > bl_timestamp + PRICING_RECORD_VALID_TIME_DIFF_FROM_BLOCK) {
+      LOG_ERROR("Pricing record timestamp is too far in the future.");
+      return false;
+    }
+
+    
+
+    if (this->timestamp <= last_bl_timestamp - PRICING_RECORD_VALID_TIME_DIFF_FROM_BLOCK) {
+      LOG_ERROR("Pricing record timestamp: " << this->timestamp << ", block timestamp: " << bl_timestamp);
+      LOG_ERROR("Pricing record timestamp is too old.");
+      return false;
+    }
+
+    return true;
+  }
+}
diff --git a/src/zephyr_oracle/pricing_record.h b/src/zephyr_oracle/pricing_record.h
new file mode 100644
index 0000000..2e3249f
--- /dev/null
+++ b/src/zephyr_oracle/pricing_record.h
@@ -0,0 +1,95 @@
+// Copyright (c) 2019, Haven Protocol
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Portions of this code based upon code Copyright (c) 2019, The Monero Project
+
+#pragma once
+#include "common/pod-class.h"
+
+#include <openssl/bio.h>
+#include <openssl/crypto.h>
+#include <openssl/ecdsa.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/pem.h>
+#include <openssl/rsa.h>
+#include <openssl/ssl.h>
+
+#include <cstdint>
+#include <string>
+#include <cstring>
+
+#include "cryptonote_config.h"
+#include "crypto/hash.h"
+
+namespace epee
+{
+  namespace serialization
+  {
+    class portable_storage;
+    struct section;
+  }
+}
+
+namespace zephyr_oracle
+{
+  class pricing_record
+  {
+
+    public:
+
+      // Fields 
+      uint64_t zEPHUSD;
+      uint64_t zEPHRSV;
+      uint64_t timestamp;
+      // Default c'tor
+      pricing_record() noexcept;
+      //! Load from epee p2p format
+      bool _load(epee::serialization::portable_storage& src, epee::serialization::section* hparent);
+      //! Store in epee p2p format
+      bool store(epee::serialization::portable_storage& dest, epee::serialization::section* hparent) const;
+      pricing_record(const pricing_record& orig) noexcept;
+      ~pricing_record() = default;
+      bool equal(const pricing_record& other) const noexcept;
+      bool empty() const noexcept;
+      bool valid(uint32_t hf_version, uint64_t bl_timestamp, uint64_t last_bl_timestamp) const;
+
+      pricing_record& operator=(const pricing_record& orig) noexcept;
+      uint64_t operator[](const std::string& asset_type) const;
+  };
+
+  inline bool operator==(const pricing_record& a, const pricing_record& b) noexcept
+  {
+   return a.equal(b);
+  }
+  
+  inline bool operator!=(const pricing_record& a, const pricing_record& b) noexcept
+  {
+   return !a.equal(b);
+  }
+
+} // oracle