public static string SHA256(string filename)
{
using (var os = File.OpenRead(filename))
{
var hasher = new SHA256CryptoServiceProvider();
return(HashingStream.ToHex(hasher.ComputeHash(os)));
};
}
private async Task <IEnumerable <ArchiveContents> > GetDownloadMetadata(IProgress <string> progress)
{
var ini_files = Directory.EnumerateFiles(_transcompilerBase.MODirectory, "meta.ini", SearchOption.AllDirectories)
.AsParallel()
.Select(f => (new FileIniDataParser()).ReadFile(f))
.ToList();
var archives = Directory.EnumerateFiles(_transcompilerBase.DownloadsDirectoryPath, "*.*");
var tasks = archives.AsParallel()
.Select(async archive => {
if (!SUPPORTED_ARCHIVES.Contains(Path.GetExtension(archive).ToLower()))
{
return;
}
var meta_data_path = Path.Combine(_transcompilerBase.DownloadsDirectoryPath, archive) + METADATA_EXTENSION;
if (File.Exists(meta_data_path))
{
return;
}
Update(progress, "[META] Generating Metadata for: ", Path.GetFileName(archive));
using (var archive_file = new ArchiveFile(archive))
{
// Extract the contents of the file and attach each to a hashing stream
var streams = new Dictionary <string, HashingStream>();
archive_file.Extract(e =>
{
if (e.IsFolder)
{
return(null);
}
if (streams.ContainsKey(e.FileName))
{
return(streams[e.FileName]);
}
var stream = new HashingStream(e.FileName);
streams.Add(e.FileName, stream);
return(stream);
});
var contents = from stream in streams.Values
select new ArchiveEntry
{
FileName = stream.Filename,
MD5 = stream.MD5Hash,
SHA256 = stream.SHA256Hash,
Size = stream.Size.ToString()
};
var ac = new ArchiveContents();
using (var file = File.OpenRead(archive))
{
var hasher = new MD5CryptoServiceProvider();
hasher.ComputeHash(file);
ac.MD5 = HashingStream.ToHex(hasher.Hash);
}
using (var file = File.OpenRead(archive))
{
var hasher = new SHA256CryptoServiceProvider();
hasher.ComputeHash(file);
ac.SHA256 = HashingStream.ToHex(hasher.Hash);
}
ac.DiskName = Path.GetFileName(archive);
ac.FileSize = (new FileInfo(archive)).Length.ToString();
ac.Contents = contents.ToArray();
// Look for an .meta file next to the archive itself
var meta_path = archive + ".meta";
bool found_ini = false;
if (File.Exists(meta_path))
{
var meta_ini = (new FileIniDataParser()).ReadFile(meta_path);
var general = meta_ini["General"];
ac.NexusModId = general["modID"];
ac.NexusFileId = general["fileID"];
ac.TargetGame = general["gameName"];
ac.ModName = general["modName"];
ac.Version = general["version"];
ac.Repository = general["repository"];
}
if (found_ini == false)
{
// Try to find a matching .meta file in a mod that uses this archive
var archive_file_name = Path.GetFileName(archive);
var match = ini_files.Where(d => Path.GetFileName(d.GetIn("General", "installationFile")) == archive_file_name)
.FirstOrDefault();
if (match != null)
{
var general = match["General"];
ac.TargetGame = general["gameName"];
ac.Repository = general["repository"];
}
}
// Try to find a matching nexus mod
var result = await _nexusApi.GetModsByMd5(new IntermediaryModObject
{
Md5 = ac.MD5,
TrueArchiveName = ac.DiskName,
TargetGame = ac.TargetGame
});
if (result != null)
{
ac.Author = result.AuthorName;
ac.NexusModId = result.ModId;
ac.NexusFileName = result.NexusFileName;
ac.NexusFileId = result.FileId;
ac.Version = result.Version;
ac.FileSize = (new FileInfo(archive)).Length.ToString();
}
await WriteJSON(meta_data_path, ac);
Update(progress, "[META] Finished", Path.GetFileName(archive));
}
});
await Task.WhenAll(tasks);
ConcurrentStack <ArchiveContents> loaded = new ConcurrentStack <ArchiveContents>();
var result_tasks = Directory.EnumerateFiles(_transcompilerBase.DownloadsDirectoryPath, "*" + METADATA_EXTENSION)
.AsParallel()
.Select(async file =>
{
using (var r = new StreamReader(File.OpenRead(file)))
{
return(JsonConvert.DeserializeObject <ArchiveContents>(await r.ReadToEndAsync()));
}
});
await Task.WhenAll(result_tasks);
var results = result_tasks.Select(t => t.Result).ToList();
return(results);
}
