Add Helper folder

2026-10-08 14:48:10 +03:00 · 2025-08-17 16:26:13 +08:00
parent 5201dd5ad0
commit c9c1cd8cbb
8 changed files with 11 additions and 10 deletions
@@ -0,0 +1,205 @@
+using System.Net.Http.Headers;
+using System.Net.Mime;
+using System.Text;
+
+namespace ServiceLib.Helper;
+
+/// <summary>
+/// </summary>
+public class HttpClientHelper
+{
+    private static readonly Lazy<HttpClientHelper> _instance = new(() =>
+    {
+        SocketsHttpHandler handler = new() { UseCookies = false };
+        HttpClientHelper helper = new(new HttpClient(handler));
+        return helper;
+    });
+
+    public static HttpClientHelper Instance => _instance.Value;
+    private readonly HttpClient httpClient;
+
+    private HttpClientHelper(HttpClient httpClient)
+    {
+        this.httpClient = httpClient;
+    }
+
+    public async Task<string?> TryGetAsync(string url)
+    {
+        if (url.IsNullOrEmpty())
+        {
+            return null;
+        }
+
+        try
+        {
+            var response = await httpClient.GetAsync(url);
+            return await response.Content.ReadAsStringAsync();
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    public async Task<string?> GetAsync(string url)
+    {
+        if (url.IsNullOrEmpty())
+        {
+            return null;
+        }
+        return await httpClient.GetStringAsync(url);
+    }
+
+    public async Task<string?> GetAsync(HttpClient client, string url, CancellationToken token = default)
+    {
+        if (url.IsNullOrEmpty())
+        {
+            return null;
+        }
+        return await client.GetStringAsync(url, token);
+    }
+
+    public async Task PutAsync(string url, Dictionary<string, string> headers)
+    {
+        var jsonContent = JsonUtils.Serialize(headers);
+        var content = new StringContent(jsonContent, Encoding.UTF8, MediaTypeNames.Application.Json);
+
+        await httpClient.PutAsync(url, content);
+    }
+
+    public async Task PatchAsync(string url, Dictionary<string, string> headers)
+    {
+        var myContent = JsonUtils.Serialize(headers);
+        var buffer = Encoding.UTF8.GetBytes(myContent);
+        var byteContent = new ByteArrayContent(buffer);
+        byteContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
+
+        await httpClient.PatchAsync(url, byteContent);
+    }
+
+    public async Task DeleteAsync(string url)
+    {
+        await httpClient.DeleteAsync(url);
+    }
+
+    public static async Task DownloadFileAsync(HttpClient client, string url, string fileName, IProgress<double>? progress, CancellationToken token = default)
+    {
+        ArgumentNullException.ThrowIfNull(url);
+        ArgumentNullException.ThrowIfNull(fileName);
+        if (File.Exists(fileName))
+        {
+            File.Delete(fileName);
+        }
+
+        using var response = await client.GetAsync(url, HttpCompletionOption.ResponseHeadersRead, token);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            throw new Exception(response.StatusCode.ToString());
+        }
+
+        var total = response.Content.Headers.ContentLength ?? -1L;
+        var canReportProgress = total != -1 && progress != null;
+
+        await using var stream = await response.Content.ReadAsStreamAsync(token);
+        await using var file = File.Create(fileName);
+        var totalRead = 0L;
+        var buffer = new byte[1024 * 1024];
+        var progressPercentage = 0;
+
+        while (true)
+        {
+            token.ThrowIfCancellationRequested();
+
+            var read = await stream.ReadAsync(buffer, token);
+            totalRead += read;
+
+            if (read == 0)
+            {
+                break;
+            }
+            await file.WriteAsync(buffer.AsMemory(0, read), token);
+
+            if (canReportProgress)
+            {
+                var percent = (int)(100.0 * totalRead / total);
+                //if (progressPercentage != percent && percent % 10 == 0)
+                {
+                    progressPercentage = percent;
+                    progress?.Report(percent);
+                }
+            }
+        }
+        if (canReportProgress)
+        {
+            progress?.Report(101);
+        }
+    }
+
+    public async Task DownloadDataAsync4Speed(HttpClient client, string url, IProgress<string> progress, CancellationToken token = default)
+    {
+        if (url.IsNullOrEmpty())
+        {
+            throw new ArgumentNullException(nameof(url));
+        }
+
+        var response = await client.GetAsync(url, HttpCompletionOption.ResponseHeadersRead, token);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            throw new Exception(response.StatusCode.ToString());
+        }
+
+        //var total = response.Content.Headers.ContentLength.HasValue ? response.Content.Headers.ContentLength.Value : -1L;
+        //var canReportProgress = total != -1 && progress != null;
+
+        await using var stream = await response.Content.ReadAsStreamAsync(token);
+        var totalRead = 0L;
+        var buffer = new byte[1024 * 64];
+        var isMoreToRead = true;
+        var progressSpeed = string.Empty;
+        var totalDatetime = DateTime.Now;
+        var totalSecond = 0;
+
+        do
+        {
+            if (token.IsCancellationRequested)
+            {
+                if (totalRead > 0)
+                {
+                    return;
+                }
+                else
+                {
+                    token.ThrowIfCancellationRequested();
+                }
+            }
+
+            var read = await stream.ReadAsync(buffer, token);
+
+            if (read == 0)
+            {
+                isMoreToRead = false;
+            }
+            else
+            {
+                var data = new byte[read];
+                buffer.ToList().CopyTo(0, data, 0, read);
+
+                totalRead += read;
+
+                var ts = DateTime.Now - totalDatetime;
+                if (progress != null && ts.Seconds > totalSecond)
+                {
+                    totalSecond = ts.Seconds;
+                    var speed = (totalRead * 1d / ts.TotalMilliseconds / 1000).ToString("#0.0");
+                    if (progressSpeed != speed)
+                    {
+                        progressSpeed = speed;
+                        progress.Report(speed);
+                    }
+                }
+            }
+        } while (isMoreToRead);
+    }
+}