Allow querying witness_node version by API

libraries/app/database_api.cpp

@@ -29,12 +29,15 @@
 #include <graphene/chain/pts_address.hpp>
 #include <graphene/chain/tournament_object.hpp>
 
+#include <graphene/utilities/git_revision.hpp>
+
 #include <fc/bloom_filter.hpp>
 
 #include <fc/crypto/hex.hpp>
 #include <fc/rpc/api_connection.hpp>
 #include <fc/uint128.hpp>
 
+#include <boost/algorithm/string.hpp>
 #include <boost/multiprecision/cpp_int.hpp>
 #include <boost/range/iterator_range.hpp>
 #include <boost/rational.hpp>
@@ -90,6 +93,7 @@ class database_api_impl : public std::enable_shared_from_this<database_api_impl>
    processed_transaction get_transaction(uint32_t block_num, uint32_t trx_in_block) const;
 
    // Globals
+   version_info get_version_info() const;
    chain_property_object get_chain_properties() const;
    global_property_object get_global_properties() const;
    fc::variant_object get_config() const;
@@ -563,6 +567,27 @@ processed_transaction database_api_impl::get_transaction(uint32_t block_num, uin
 //                                                                  //
 //////////////////////////////////////////////////////////////////////
 
+version_info database_api::get_version_info() const {
+   return my->get_version_info();
+}
+
+version_info database_api_impl::get_version_info() const {
+
+   std::string witness_version(graphene::utilities::git_revision_description);
+   const size_t pos = witness_version.find('/');
+   if (pos != std::string::npos && witness_version.size() > pos)
+      witness_version = witness_version.substr(pos + 1);
+
+   version_info vi;
+   vi.version = witness_version;
+   vi.git_revision = graphene::utilities::git_revision_sha;
+   vi.built = std::string(__DATE__) + " at " + std::string(__TIME__);
+   vi.openssl = OPENSSL_VERSION_TEXT;
+   vi.boost = boost::replace_all_copy(std::string(BOOST_LIB_VERSION), "_", ".");
+
+   return vi;
+}
+
 chain_property_object database_api::get_chain_properties() const {
    return my->get_chain_properties();
 }

libraries/app/include/graphene/app/database_api.hpp

@@ -130,6 +130,14 @@ struct gpos_info {
    share_type account_vested_balance;
 };
 
+struct version_info {
+   string version;
+   string git_revision;
+   string built;
+   string openssl;
+   string boost;
+};
+
 /**
  * @brief The database_api class implements the RPC API for the chain database.
  *
@@ -218,6 +226,11 @@ class database_api {
    // Globals //
    /////////////
 
+   /**
+    * @brief Retrieve the @ref version_info associated with the witness node
+    */
+   version_info get_version_info() const;
+
    /**
     * @brief Retrieve the @ref chain_property_object associated with the chain
     */
@@ -1040,6 +1053,7 @@ FC_REFLECT(graphene::app::market_ticker, (base)(quote)(latest)(lowest_ask)(highe
 FC_REFLECT(graphene::app::market_volume, (base)(quote)(base_volume)(quote_volume));
 FC_REFLECT(graphene::app::market_trade, (date)(price)(amount)(value));
 FC_REFLECT(graphene::app::gpos_info, (vesting_factor)(award)(total_amount)(current_subperiod)(last_voted_time)(allowed_withdraw_amount)(account_vested_balance));
+FC_REFLECT(graphene::app::version_info, (version)(git_revision)(built)(openssl)(boost));
 
 FC_API(graphene::app::database_api,
    // Objects
@@ -1060,6 +1074,7 @@ FC_API(graphene::app::database_api,
    (get_recent_transaction_by_id)
 
    // Globals
+   (get_version_info)
    (get_chain_properties)
    (get_global_properties)
    (get_config)