set non supported error for v2 torrents

libi2pd_client/Torrents.cpp

@@ -587,6 +587,16 @@ namespace torrents
 				}
 				else if (key == "files")
 					return ParseFiles (buf);
+				else if (key == "meta version")
+				{
+					auto [value, l] = ExtractInteger (buf);
+					if (l && value != 1)
+					{
+						LogPrint (eLogError, "Torrents: Torrent version ", value, " is not supprted");
+						m_Error = eTorrentErrorNonSupportedVersion;
+					}
+					return l;
+				}
 				return 0;
 			});
 		if (!len)

libi2pd_client/Torrents.h

@@ -239,12 +239,13 @@ namespace torrents
 	{
 		eTorrentErrorNoError = 0,
 		eTorrentErrorMalformedMetaInfo = 1,
+		eTorrentErrorNonSupportedVersion = 2,
 		eNumTorrentErrors
 	};
 
 	constexpr std::array<std::string_view, eNumTorrentErrors> TorrentErrorStr
 	{
-		"", "Malformed metaInfo"
+		"", "Malformed metaInfo", "Non supported version"
 	};
 
 	using RequestedBlock = std::tuple<uint32_t, uint32_t, uint32_t>; // (index, offset, len)