diff options
Diffstat (limited to 'LibMatrix/Extensions/HttpClientExtensions.cs')
| -rw-r--r-- | LibMatrix/Extensions/HttpClientExtensions.cs | 248 |
1 files changed, 227 insertions, 21 deletions
diff --git a/LibMatrix/Extensions/HttpClientExtensions.cs b/LibMatrix/Extensions/HttpClientExtensions.cs index 64b4f6a..f801e16 100644 --- a/LibMatrix/Extensions/HttpClientExtensions.cs +++ b/LibMatrix/Extensions/HttpClientExtensions.cs @@ -1,8 +1,10 @@ +#define SINGLE_HTTPCLIENT // Use a single HttpClient instance for all MatrixHttpClient instances +// #define SYNC_HTTPCLIENT // Only allow one request as a time, for debugging using System.Diagnostics; using System.Diagnostics.CodeAnalysis; -using System.Globalization; using System.Net.Http.Headers; using System.Reflection; +using System.Security.Cryptography.X509Certificates; using System.Text; using System.Text.Json; using System.Text.Json.Serialization; @@ -25,7 +27,16 @@ public static class HttpClientExtensions { } } -public class MatrixHttpClient : HttpClient { +#region Per-instance HTTP client code + +#if !SINGLE_HTTPCLIENT +public class MatrixHttpClient() : HttpClient(handler) { + private static readonly SocketsHttpHandler handler = new() { + PooledConnectionLifetime = TimeSpan.FromMinutes(15), + MaxConnectionsPerServer = 256, + EnableMultipleHttp2Connections = true + }; + public Dictionary<string, string> AdditionalQueryParameters { get; set; } = new(); internal string? AssertedUserId { get; set; } @@ -44,7 +55,7 @@ public class MatrixHttpClient : HttpClient { public async Task<HttpResponseMessage> SendUnhandledAsync(HttpRequestMessage request, CancellationToken cancellationToken) { if(debug) await _rateLimitSemaphore.WaitAsync(cancellationToken); - // Console.WriteLine($"Sending {request.Method} {BaseAddress}{request.RequestUri} ({Util.BytesToString(request.Content?.Headers.ContentLength ?? 0)})"); + Console.WriteLine($"Sending {request.Method} {BaseAddress}{request.RequestUri} ({Util.BytesToString(request.Content?.Headers.ContentLength ?? 0)})"); if (request.RequestUri is null) throw new NullReferenceException("RequestUri is null"); if (!request.RequestUri.IsAbsoluteUri) request.RequestUri = new Uri(BaseAddress, request.RequestUri); // if (AssertedUserId is not null) request.RequestUri = request.RequestUri.AddQuery("user_id", AssertedUserId); @@ -73,6 +84,8 @@ public class MatrixHttpClient : HttpClient { finally { if(debug) _rateLimitSemaphore.Release(); } + + Console.WriteLine($"Sending {request.Method} {request.RequestUri} ({Util.BytesToString(request.Content?.Headers.ContentLength ?? 0)}) -> {(int)responseMessage.StatusCode} {responseMessage.StatusCode} ({Util.BytesToString(responseMessage.Content.Headers.ContentLength ?? 0)})"); return responseMessage; } @@ -191,27 +204,220 @@ public class MatrixHttpClient : HttpClient { await foreach (var resp in result) yield return resp; } } +#endif -public class JsonFloatStringConverter : JsonConverter<float> { - public override float Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) - => float.Parse(reader.GetString()!); +#endregion - public override void Write(Utf8JsonWriter writer, float value, JsonSerializerOptions options) - => writer.WriteStringValue(value.ToString(CultureInfo.InvariantCulture)); -} +#if SINGLE_HTTPCLIENT +public class MatrixHttpClient { + private static readonly SocketsHttpHandler handler; -public class JsonDoubleStringConverter : JsonConverter<double> { - public override double Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) - => double.Parse(reader.GetString()!); + private static readonly HttpClient client; - public override void Write(Utf8JsonWriter writer, double value, JsonSerializerOptions options) - => writer.WriteStringValue(value.ToString(CultureInfo.InvariantCulture)); -} + static MatrixHttpClient() { + try { + handler = new SocketsHttpHandler { + PooledConnectionLifetime = TimeSpan.FromMinutes(15), + MaxConnectionsPerServer = 4096, + EnableMultipleHttp2Connections = true + }; + client = new HttpClient(handler) { + DefaultRequestVersion = new Version(3, 0) + }; + } + catch (PlatformNotSupportedException e) { + Console.WriteLine("Failed to create HttpClient with connection pooling, continuing without connection pool!"); + Console.WriteLine("Original exception (safe to ignore!):"); + Console.WriteLine(e); + + client = new HttpClient { + DefaultRequestVersion = new Version(3, 0) + }; + } + catch (Exception e) { + Console.WriteLine("Failed to create HttpClient:"); + Console.WriteLine(e); + throw; + } + } + +#if SYNC_HTTPCLIENT + internal SemaphoreSlim _rateLimitSemaphore { get; } = new(1, 1); +#endif + + public Dictionary<string, string> AdditionalQueryParameters { get; set; } = new(); + + public Uri? BaseAddress { get; set; } + + // default headers, not bound to client + public HttpRequestHeaders DefaultRequestHeaders { get; set; } = + typeof(HttpRequestHeaders).GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance, null, new Type[0], null)?.Invoke(new object[0]) as HttpRequestHeaders ?? + throw new InvalidOperationException("Failed to create HttpRequestHeaders"); + + private JsonSerializerOptions GetJsonSerializerOptions(JsonSerializerOptions? options = null) { + options ??= new JsonSerializerOptions(); + options.Converters.Add(new JsonFloatStringConverter()); + options.Converters.Add(new JsonDoubleStringConverter()); + options.Converters.Add(new JsonDecimalStringConverter()); + options.DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull; + return options; + } + + public async Task<HttpResponseMessage> SendUnhandledAsync(HttpRequestMessage request, CancellationToken cancellationToken) { +#if SYNC_HTTPCLIENT + await _rateLimitSemaphore.WaitAsync(cancellationToken); +#endif + + Console.WriteLine($"Sending {request.Method} {BaseAddress}{request.RequestUri} ({Util.BytesToString(request.Content?.Headers.ContentLength ?? 0)})"); + + if (request.RequestUri is null) throw new NullReferenceException("RequestUri is null"); + if (!request.RequestUri.IsAbsoluteUri) request.RequestUri = new Uri(BaseAddress, request.RequestUri); + foreach (var (key, value) in AdditionalQueryParameters) request.RequestUri = request.RequestUri.AddQuery(key, value); + foreach (var (key, value) in DefaultRequestHeaders) request.Headers.Add(key, value); + + request.Options.Set(new HttpRequestOptionsKey<bool>("WebAssemblyEnableStreamingResponse"), true); -public class JsonDecimalStringConverter : JsonConverter<decimal> { - public override decimal Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) - => decimal.Parse(reader.GetString()!); + HttpResponseMessage? responseMessage; + try { + responseMessage = await client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationToken); + } + catch (Exception e) { + Console.WriteLine( + $"Failed to send request {request.Method} {BaseAddress}{request.RequestUri} ({Util.BytesToString(request.Content?.Headers.ContentLength ?? 0)}):\n{e}"); + throw; + } +#if SYNC_HTTPCLIENT + finally { + _rateLimitSemaphore.Release(); + } +#endif + + Console.WriteLine( + $"Sending {request.Method} {request.RequestUri} ({Util.BytesToString(request.Content?.Headers.ContentLength ?? 0)}) -> {(int)responseMessage.StatusCode} {responseMessage.StatusCode} ({Util.BytesToString(responseMessage.Content.Headers.ContentLength ?? 0)})"); + + return responseMessage; + } + + public async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken = default) { + var responseMessage = await SendUnhandledAsync(request, cancellationToken); + if (responseMessage.IsSuccessStatusCode) return responseMessage; - public override void Write(Utf8JsonWriter writer, decimal value, JsonSerializerOptions options) - => writer.WriteStringValue(value.ToString(CultureInfo.InvariantCulture)); -} \ No newline at end of file + //error handling + var content = await responseMessage.Content.ReadAsStringAsync(cancellationToken); + if (content.Length == 0) + throw new MatrixException() { + ErrorCode = "M_UNKNOWN", + Error = "Unknown error, server returned no content" + }; + if (!content.StartsWith('{')) throw new InvalidDataException("Encountered invalid data:\n" + content); + //we have a matrix error + + MatrixException? ex = null; + try { + ex = JsonSerializer.Deserialize<MatrixException>(content); + } + catch (JsonException e) { + throw new LibMatrixException() { + ErrorCode = "M_INVALID_JSON", + Error = e.Message + "\nBody:\n" + await responseMessage.Content.ReadAsStringAsync(cancellationToken) + }; + } + + Debug.Assert(ex != null, nameof(ex) + " != null"); + ex.RawContent = content; + // Console.WriteLine($"Failed to send request: {ex}"); + if (ex?.RetryAfterMs is null) throw ex!; + //we have a ratelimit error + await Task.Delay(ex.RetryAfterMs.Value, cancellationToken); + typeof(HttpRequestMessage).GetField("_sendStatus", BindingFlags.NonPublic | BindingFlags.Instance) + ?.SetValue(request, 0); + return await SendAsync(request, cancellationToken); + } + + // GetAsync + public Task<HttpResponseMessage> GetAsync([StringSyntax("Uri")] string? requestUri, CancellationToken? cancellationToken = null) => + SendAsync(new HttpRequestMessage(HttpMethod.Get, requestUri), cancellationToken ?? CancellationToken.None); + + // GetFromJsonAsync + public async Task<T?> TryGetFromJsonAsync<T>(string requestUri, JsonSerializerOptions? options = null, CancellationToken cancellationToken = default) { + try { + return await GetFromJsonAsync<T>(requestUri, options, cancellationToken); + } + catch (HttpRequestException e) { + Console.WriteLine($"Failed to get {requestUri}: {e.Message}"); + return default; + } + } + + public async Task<T> GetFromJsonAsync<T>(string requestUri, JsonSerializerOptions? options = null, CancellationToken cancellationToken = default) { + options = GetJsonSerializerOptions(options); + var request = new HttpRequestMessage(HttpMethod.Get, requestUri); + request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); + var response = await SendAsync(request, cancellationToken); + response.EnsureSuccessStatusCode(); + await using var responseStream = await response.Content.ReadAsStreamAsync(cancellationToken); + + return await JsonSerializer.DeserializeAsync<T>(responseStream, options, cancellationToken) ?? + throw new InvalidOperationException("Failed to deserialize response"); + } + + // GetStreamAsync + public new async Task<Stream> GetStreamAsync(string requestUri, CancellationToken cancellationToken = default) { + var request = new HttpRequestMessage(HttpMethod.Get, requestUri); + request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); + var response = await SendAsync(request, cancellationToken); + response.EnsureSuccessStatusCode(); + return await response.Content.ReadAsStreamAsync(cancellationToken); + } + + public async Task<HttpResponseMessage> PutAsJsonAsync<T>([StringSyntax(StringSyntaxAttribute.Uri)] string? requestUri, T value, JsonSerializerOptions? options = null, + CancellationToken cancellationToken = default) where T : notnull { + options = GetJsonSerializerOptions(options); + var request = new HttpRequestMessage(HttpMethod.Put, requestUri); + request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); + request.Content = new StringContent(JsonSerializer.Serialize(value, value.GetType(), options), + Encoding.UTF8, "application/json"); + return await SendAsync(request, cancellationToken); + } + + public async Task<HttpResponseMessage> PostAsJsonAsync<T>([StringSyntax(StringSyntaxAttribute.Uri)] string? requestUri, T value, JsonSerializerOptions? options = null, + CancellationToken cancellationToken = default) where T : notnull { + options ??= new JsonSerializerOptions(); + options.Converters.Add(new JsonFloatStringConverter()); + options.Converters.Add(new JsonDoubleStringConverter()); + options.Converters.Add(new JsonDecimalStringConverter()); + options.DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull; + var request = new HttpRequestMessage(HttpMethod.Post, requestUri); + request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); + request.Content = new StringContent(JsonSerializer.Serialize(value, value.GetType(), options), + Encoding.UTF8, "application/json"); + return await SendAsync(request, cancellationToken); + } + + public async IAsyncEnumerable<T?> GetAsyncEnumerableFromJsonAsync<T>([StringSyntax(StringSyntaxAttribute.Uri)] string? requestUri, JsonSerializerOptions? options = null) { + options = GetJsonSerializerOptions(options); + var res = await GetAsync(requestUri); + var result = JsonSerializer.DeserializeAsyncEnumerable<T>(await res.Content.ReadAsStreamAsync(), options); + await foreach (var resp in result) yield return resp; + } + + public async Task<bool> CheckSuccessStatus(string url) { + //cors causes failure, try to catch + try { + var resp = await client.GetAsync(url); + return resp.IsSuccessStatusCode; + } + catch (Exception e) { + Console.WriteLine($"Failed to check success status: {e.Message}"); + return false; + } + } + + public async Task<HttpResponseMessage> PostAsync(string uri, HttpContent? content, CancellationToken cancellationToken = default) { + var request = new HttpRequestMessage(HttpMethod.Post, uri) { + Content = content + }; + return await SendAsync(request, cancellationToken); + } +} +#endif \ No newline at end of file |