66 lines
2.7 KiB
C#
66 lines
2.7 KiB
C#
using System.Net.Http;
|
||
using Mlaumcherb.Client.Avalonia.холопы;
|
||
|
||
namespace Mlaumcherb.Client.Avalonia.сеть;
|
||
|
||
public static class NetworkHelper
|
||
{
|
||
private static HttpClient _http = new();
|
||
|
||
static NetworkHelper()
|
||
{
|
||
// thanks for Sashok :3
|
||
// https://github.com/new-sashok724/Launcher/blob/23485c3f7de6620d2c6b7b2dd9339c3beb6a0366/Launcher/source/helper/IOHelper.java#L259
|
||
_http.DefaultRequestHeaders.Add("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)");
|
||
}
|
||
|
||
public static Task<string> GetString(string url, CancellationToken ct = default) => _http.GetStringAsync(url, ct);
|
||
public static Task<Stream> GetStream(string url, CancellationToken ct = default) => _http.GetStreamAsync(url, ct);
|
||
|
||
public static async Task DownloadFile(string url, Stream outStream, CancellationToken ct = default,
|
||
params TransformStream.TransformFuncDelegate[] transforms)
|
||
{
|
||
await using var pipe = new TransformStream(await GetStream(url, ct));
|
||
if (transforms.Length > 0)
|
||
pipe.AddTransforms(transforms);
|
||
await pipe.CopyToAsync(outStream, ct);
|
||
}
|
||
|
||
public static async Task DownloadFile(string url, IOPath outPath, CancellationToken ct = default,
|
||
params TransformStream.TransformFuncDelegate[] transforms)
|
||
{
|
||
await using var file = File.OpenWrite(outPath);
|
||
await DownloadFile(url, file, ct, transforms);
|
||
}
|
||
|
||
public static async Task<T> DownloadStringAndDeserialize<T>(string url)
|
||
{
|
||
var text = await GetString(url);
|
||
var result = JsonConvert.DeserializeObject<T>(text)
|
||
?? throw new Exception($"can't deserialize {typeof(T).Name}");
|
||
return result;
|
||
}
|
||
|
||
|
||
/// <returns>(file_content, didDownload)</returns>
|
||
public static async Task<(string, bool)> ReadOrDownload(IOPath filePath, string url,
|
||
string? sha1, bool checkHashes)
|
||
{
|
||
if (HashHelper.CheckFileSHA1(filePath, sha1, checkHashes))
|
||
return (File.ReadAllText(filePath), false);
|
||
|
||
string txt = await NetworkHelper.GetString(url);
|
||
File.WriteAllText(filePath, txt);
|
||
return (txt, true);
|
||
}
|
||
|
||
/// <returns>(file_content, didDownload)</returns>
|
||
public static async Task<(T, bool)> ReadOrDownloadAndDeserialize<T>(IOPath filePath, string url,
|
||
string? sha1, bool checkHashes)
|
||
{
|
||
(string text, bool didDownload) = await ReadOrDownload(filePath, url, sha1, checkHashes);
|
||
var result = JsonConvert.DeserializeObject<T>(text)
|
||
?? throw new Exception($"can't deserialize {typeof(T).Name}");
|
||
return (result, didDownload);
|
||
}
|
||
} |