/// <summary>
/// Returns an uploaded file from the file list if it exists. If it doens't, this returns null.
/// </summary>
/// <param name="name"></param>
/// <param name="type"></param>
/// <returns></returns>
private EchoUploadedFile GetFileFromList(List <EchoUploadedFile> files, string name, ArkUploadedFileType type)
{
var results = files.Where(x => x.type == type && x.name == name);
return(results.FirstOrDefault());
}
/// <summary>
/// Updates a file on the server. If the file changed, this returns true.
/// </summary>
/// <param name="files"></param>
/// <param name="name"></param>
/// <param name="type"></param>
/// <returns></returns>
private async Task <bool> UpdateFileAsync(List <EchoUploadedFile> files, string filename, string name, ArkUploadedFileType type)
{
//Get the data if it exists
EchoUploadedFile fileData = GetFileFromList(files, name, type);
//Open a stream on this file
FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
//Hash this file
string hash;
using (SHA1Managed sha1 = new SHA1Managed())
{
byte[] hashBytes = sha1.ComputeHash(fs);
hash = string.Concat(hashBytes.Select(b => b.ToString("x2")));
}
//Check if this file needs updating
if (fileData != null)
{
if (fileData.sha1 == hash)
{
return(false);
}
}
//This file needs updating. Compress and upload this file.
fs.Position = 0;
Log.I("Update-File", $"Updating {name}/{type.ToString()} ({MathF.Round(fs.Length / 1024)} KB) for server {info.id}...");
HttpResponseMessage response;
using (MemoryStream ms = new MemoryStream())
{
using (GZipStream gz = new GZipStream(ms, CompressionLevel.Optimal, true))
{
//Compress
await fs.CopyToAsync(gz);
}
//Upload
ms.Position = 0;
StreamContent sc = new StreamContent(ms);
sc.Headers.Add("X-Delta-Filename", name);
sc.Headers.Add("X-Delta-File-Type", type.ToString());
try
{
response = await client.PostAsync(Program.config.endpoint_echo_upload, sc);
}
catch
{
throw new StandardError("Update-File", $"Failed to upload updated file. {name}/{type.ToString()} ({MathF.Round(fs.Length / 1024)} KB)");
}
}
if (!response.IsSuccessStatusCode)
{
throw new StandardError("Update-File", $"Failed to upload updated file. Status code was not OK. {name}/{type.ToString()} ({MathF.Round(fs.Length / 1024)} KB)");
}
return(true);
}
