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Merge pull request #45 from BifrostTitan/master
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Metadata Account class now retrieves offchain metadata and stores it as a variable in the class
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@mariomatic
mariomatic authored Nov 9, 2022
2 parents 90e8edf + c5eec98 commit 95ca3c2
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Showing 4 changed files with 157 additions and 56 deletions.
110 changes: 54 additions & 56 deletions Solnet.Metaplex/MetadataAccount.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,8 @@
using System.Text;
using System.Threading.Tasks;
using System.Net.Http;
using Solnet.Metaplex.Json;
using Newtonsoft.Json;

namespace Solnet.Metaplex
{
Expand Down Expand Up @@ -72,7 +74,7 @@ public class OnchainDataV1
public bool isMutable;
///<summary> Edition Type </summary>
public int editionNonce;
///<summary> Token Standard - Fungible / non-fungible </summary>
///<summary> primarySaleHappened </summary>
public bool primarySaleHappened;
///<summary> metadata json </summary>
public string metadata;
Expand All @@ -90,21 +92,6 @@ public OnchainDataV1(string _name, string _symbol, string _uri, uint _sellerFee,
primarySaleHappened = _primarySaleHappened;
}

/// <summary> Tries to get a json file from the uri </summary>
public async Task<string> FetchMetadata()
{
if (uri is null)
return null;

if (metadata is null)
{
using var http = new HttpClient();
var res = await http.GetStringAsync(uri);
metadata = res;
}

return metadata;
}
}
/// <summary> Metadata Onchain DataV3 structure </summary>
public class OnChainDataV3
Expand Down Expand Up @@ -149,21 +136,7 @@ public OnChainDataV3(string _name, string _symbol, string _uri, uint _sellerFee,
tokenStandard = _tokenStandard;
}

/// <summary> Tries to get a json file from the uri </summary>
public async Task<string> FetchMetadata()
{
if (uri is null)
return null;

if (metadata is null)
{
using var http = new HttpClient();
var res = await http.GetStringAsync(uri);
metadata = res;
}

return metadata;
}
}
/// <summary> Metadata account class V2 </summary>
public class MetadataAccount
Expand All @@ -178,6 +151,8 @@ public class MetadataAccount
public OnchainDataV1 metadataV1;
/// <summary> data struct </summary>
public OnChainDataV3 metadataV3;
/// <summary> Off Chain Metadata </summary>
public MetaplexTokenStandard offchainData;
/// <summary> version of metadata. V1 or V3</summary>
public int MetadataVersion;
/// <summary> standard Solana account info </summary>
Expand All @@ -188,25 +163,47 @@ public class MetadataAccount
/// <summary> Constructor </summary>
/// <param name="accInfo"> Soloana account info </param>
/// /// <param name="MetadataVersion"> Metadata Account Version - Either 1 or 3</param>
public MetadataAccount(AccountInfo accInfo, int MetadataVersion)
public MetadataAccount(AccountInfo accInfo, int _MetadataVersion)
{
try
{
this.owner = new PublicKey(accInfo.Owner);
if(MetadataVersion == 1)
this.metadataV1 = ParseDataV1(accInfo.Data);
owner = new PublicKey(accInfo.Owner);
MetadataVersion = _MetadataVersion;
if (MetadataVersion == 1)
metadataV1 = ParseDataV1(accInfo.Data);
if (MetadataVersion == 3)
this.metadataV3 = ParseDataV3(accInfo.Data);
metadataV3 = ParseDataV3(accInfo.Data);
var data = Convert.FromBase64String(accInfo.Data[0]);
this.updateAuthority = new PublicKey(data[1..33]);
this.mint = new PublicKey(data[33..65]);
var UA = data.AsSpan(1, 32);
updateAuthority = new PublicKey(UA);
if (MetadataVersion == 1)
offchainData = FetchOffChainMetadata(1);
if (MetadataVersion == 3)
offchainData = FetchOffChainMetadata(3);
var _mint = data.AsSpan(33, 32);
mint = new PublicKey(_mint);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
/// <summary> Tries to get a json file from the uri </summary>
public MetaplexTokenStandard FetchOffChainMetadata(int version)
{
MetaplexTokenStandard metadata = null;
string assetURI = metadataV3.uri;
if (version == 1)
assetURI = metadataV1.uri;
using (var httpClient = new HttpClient())
{
httpClient.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:47.0) Gecko/20100101 Firefox/47.0");
var offsiteTokenRetrieval = httpClient.GetStringAsync(new Uri(assetURI)).Result;
MetaplexTokenStandard _Metadata = JsonConvert.DeserializeObject<MetaplexTokenStandard>(offsiteTokenRetrieval);
}

return metadata;
}
/// <summary> Parse version 1 Data used for V1 metadata accounts </summary>
/// <param name="data"> data </param>
/// <returns> data struct </returns>
Expand Down Expand Up @@ -234,7 +231,7 @@ public static OnchainDataV1 ParseDataV1(List<string> data)
if (hasCreators == true)
{
creators = MetadataProgramData.DecodeCreators(binData.GetSpan(MetadataAccountLayout.creatorsCountOffset + 5, numOfCreators * (32 + 1 + 1)));
o = MetadataAccountLayout.creatorsCountOffset + 5 + (numOfCreators * (32 + 1 + 1));
o = MetadataAccountLayout.creatorsCountOffset + 5 + numOfCreators * (32 + 1 + 1);
}
else
{
Expand Down Expand Up @@ -287,8 +284,8 @@ public static OnChainDataV3 ParseDataV3(List<string> data)
if (hasCreators == true)
{
creators = MetadataProgramData.DecodeCreators(binData.GetSpan(MetadataAccountLayout.creatorsCountOffset + 5, numOfCreators * (32 + 1 + 1)));
o = MetadataAccountLayout.creatorsCountOffset + 5 + (numOfCreators * (32 + 1 + 1));
o = MetadataAccountLayout.creatorsCountOffset + 5 + numOfCreators * (32 + 1 + 1);

}
else
{
Expand All @@ -307,41 +304,41 @@ public static OnChainDataV3 ParseDataV3(List<string> data)
o++;
bool hasCollectionlink = binData.GetBool(o);
o++;

Collection collectionLink = null;
if (hasCollectionlink == true)
{
var verified = binData.GetBool(o);
o++;
var key = binData.GetPubKey(o);
o = o + 32;
collectionLink = new Collection(key, verified);

collectionLink = new Collection(key, verified);
}
else
{
o++;
}

bool isConsumable = binData.GetBool(o);
Uses usesInfo = null;
if (isConsumable == true)
{
o++;
var useMethodENUM = binData.GetBytes(o, 1)[0];
o++;
var remaining = binData.GetU64(o).ToString("x");
o = o + 8;
var total = binData.GetU64(o).ToString("x");
o = o + 8;
o++;
usesInfo = new Uses(useMethodENUM, remaining, total);
o++;
var useMethodENUM = binData.GetBytes(o, 1)[0];
o++;
var remaining = binData.GetU64(o).ToString("x");
o = o + 8;
var total = binData.GetU64(o).ToString("x");
o = o + 8;
o++;
usesInfo = new Uses(useMethodENUM, remaining, total);
}
else
{
o++;
}

name = name.TrimEnd('\0');
symbol = symbol.TrimEnd('\0');
uri = uri.TrimEnd('\0');
Expand Down Expand Up @@ -382,7 +379,8 @@ async public static Task<MetadataAccount> GetAccount(IRpcClient client, PublicKe

if (readdata.Length == 165)
{
mintAccount = new PublicKey(readdata[..32]);
byte[] _mint = readdata.AsSpan(0, 32).ToArray();
mintAccount = new PublicKey(_mint);
}
else
{
Expand All @@ -391,7 +389,7 @@ async public static Task<MetadataAccount> GetAccount(IRpcClient client, PublicKe

PublicKey metadataAddress;
byte nonce;
PublicKey.TryFindProgramAddress(new List<byte[]>()
PublicKey.TryFindProgramAddress(new List<byte[]>()
{
Encoding.UTF8.GetBytes("metadata"),
MetadataProgram.ProgramIdKey,
Expand Down
96 changes: 96 additions & 0 deletions Solnet.Metaplex/MetadataJson.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,96 @@
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Text;

namespace Solnet.Metaplex.Json
{
public class MetaplexTokenStandard
{
[JsonProperty("name")]
public string name { get; set; }

[JsonProperty("symbol")]
public string symbol { get; set; }

[JsonProperty("description")]
public string description { get; set; }

[JsonProperty("seller_fee_basis_points")]
public int seller_fee_basis_points { get; set; }

[JsonProperty("image")]
public string image { get; set; }

[JsonProperty("animation_url")]
public string animation_url { get; set; }

[JsonProperty("external_url")]
public string external_url { get; set; }

[JsonProperty("attributes")]
public List<Attribute> attributes { get; set; }

[JsonProperty("collection")]
public Collection collection { get; set; }

[JsonProperty("properties")]
public Properties properties { get; set; }
}

public class Attribute
{
[JsonProperty("trait_type")]
public string trait_type { get; set; }

[JsonProperty("value")]
public string value { get; set; }

}
public class Collection
{
[JsonProperty("name")]
public string name { get; set; }

[JsonProperty("family")]
public string family { get; set; }

}
public class Files
{
[JsonProperty("0")]
public FileType file { get; set; }

[JsonProperty("data")]
public string category { get; set; }
}
public class FileType
{
[JsonProperty("uri")]
public string uri { get; set; }

[JsonProperty("type")]
public string type { get; set; }
}
public class Creators
{
[JsonProperty("0")]
public Creator creator { get; set; }
}
public class Creator
{
[JsonProperty("address")]
public string address { get; set; }

[JsonProperty("share")]
public int share { get; set; }
}
public class Properties
{
[JsonProperty("files")]
public List<FileType> files { get; set; }

[JsonProperty("creators")]
public List<Creator> creators { get; set; }
}
}
1 change: 1 addition & 0 deletions Solnet.Metaplex/Solnet.Metaplex.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
<PackageReference Include="Microsoft.Extensions.Logging" Version="6.0.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="6.0.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="6.0.2" />
<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
<PackageReference Include="Solnet.Extensions" Version="6.1.0" />
<PackageReference Include="Solnet.Keystore" Version="6.1.0" />
<PackageReference Include="Solnet.Programs" Version="6.1.0" />
Expand Down
6 changes: 6 additions & 0 deletions Solnet.Metaplex/packages.lock.json
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,12 @@
"System.Text.Json": "6.0.0"
}
},
"Newtonsoft.Json": {
"type": "Direct",
"requested": "[13.0.1, )",
"resolved": "13.0.1",
"contentHash": "ppPFpBcvxdsfUonNcvITKqLl3bqxWbDCZIzDWHzjpdAHRFfZe0Dw9HmA0+za13IdyrgJwpkDTDA9fHaxOrt20A=="
},
"Solnet.Extensions": {
"type": "Direct",
"requested": "[6.1.0, )",
Expand Down

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