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Avoid recreating the HttpClient every time

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Gervasio Marchand 2023-07-07 18:24:49 -03:00
parent 8f3a66a0ca
commit 0fff72236f
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1 changed files with 17 additions and 10 deletions
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23
src/FakeRelay.Core/Helpers/MastodonHelper.cs
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@ -1,4 +1,5 @@
using System.Net.Http.Headers; using System.Net.Http.Headers;
using System.Text;
namespace FakeRelay.Core.Helpers; namespace FakeRelay.Core.Helpers;
@ -23,28 +24,34 @@ public static class MastodonHelper
}}"); }}");
} }
public static async Task<string> SendMessageToInboxAsync(string targetHost, string content) private static HttpClient? _client;
private static HttpClient Client => _client ??= GetClient();
private static HttpClient GetClient()
{ {
var client = new HttpClient { Timeout = TimeSpan.FromSeconds(5) }; var client = new HttpClient { Timeout = TimeSpan.FromSeconds(5) };
client.DefaultRequestHeaders.Add("User-Agent", $"FakeRelay (hosted at {Config.Instance.Host})"); client.DefaultRequestHeaders.Add("User-Agent", $"FakeRelay (hosted at {Config.Instance.Host})");
return client;
}
public static async Task<string> SendMessageToInboxAsync(string targetHost, string content)
{
var date = DateTime.UtcNow; var date = DateTime.UtcNow;
var digest = CryptographyHelper.GetSHA256Digest(content); var digest = CryptographyHelper.GetSHA256Digest(content);
var requestContent = new StringContent(content);
requestContent.Headers.Add("Digest", "SHA-256=" + digest); var request = new HttpRequestMessage(HttpMethod.Post, $"https://{targetHost}/inbox");
request.Headers.Date = date;
request.Headers.Add("Digest", "SHA-256=" + digest);
request.Content = new StringContent(content, Encoding.UTF8, "application/activity+json");
var stringToSign = $"(request-target): post /inbox\ndate: {date.ToString("R")}\nhost: {targetHost}\ndigest: SHA-256={digest}\ncontent-length: {content.Length}"; var stringToSign = $"(request-target): post /inbox\ndate: {date.ToString("R")}\nhost: {targetHost}\ndigest: SHA-256={digest}\ncontent-length: {content.Length}";
var signature = CryptographyHelper.Sign(stringToSign); var signature = CryptographyHelper.Sign(stringToSign);
requestContent.Headers.Add("Signature", $@"keyId=""https://{Config.Instance.Host}/actor#main-key"",algorithm=""rsa-sha256"",headers=""(request-target) date host digest content-length"",signature=""{signature}"""); request.Headers.Add("Signature", $@"keyId=""https://{Config.Instance.Host}/actor#main-key"",algorithm=""rsa-sha256"",headers=""(request-target) date host digest content-length"",signature=""{signature}""");
requestContent.Headers.ContentType = new MediaTypeHeaderValue("application/activity+json");
client.DefaultRequestHeaders.Date = date;
try try
{ {
var response = await client.PostAsync($"https://{targetHost}/inbox", requestContent); var response = await Client.SendAsync(request);
return await response.Content.ReadAsStringAsync(); return await response.Content.ReadAsStringAsync();
} }
catch (Exception e) catch (Exception e)