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Diffstat (limited to 'LibMatrix/Extensions/MatrixHttpClient.Multi.cs')
| -rw-r--r-- | LibMatrix/Extensions/MatrixHttpClient.Multi.cs | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/LibMatrix/Extensions/MatrixHttpClient.Multi.cs b/LibMatrix/Extensions/MatrixHttpClient.Multi.cs new file mode 100644 index 0000000..e7a2044 --- /dev/null +++ b/LibMatrix/Extensions/MatrixHttpClient.Multi.cs @@ -0,0 +1,209 @@ +#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.Net.Http.Headers; +using System.Reflection; +using System.Security.Cryptography.X509Certificates; +using System.Text; +using System.Text.Json; +using System.Text.Json.Serialization; +using ArcaneLibs; +using ArcaneLibs.Extensions; + +namespace LibMatrix.Extensions; + +public static class HttpClientExtensions { + public static async Task<bool> CheckSuccessStatus(this HttpClient hc, string url) { + //cors causes failure, try to catch + try { + var resp = await hc.GetAsync(url); + return resp.IsSuccessStatusCode; + } + catch (Exception e) { + Console.WriteLine($"Failed to check success status: {e.Message}"); + return false; + } + } +} + +#region Per-instance HTTP client code + +#if !SINGLE_HTTPCLIENT +public class MatrixHttpClient() : HttpClient(handler) { + private static readonly SocketsHttpHandler handler = new() { + PooledConnectionLifetime = TimeSpan.FromMinutes(15), + MaxConnectionsPerServer = 256, + EnableMultipleHttp2Connections = true + }; + + public Dictionary<string, string> AdditionalQueryParameters { get; set; } = new(); + internal string? AssertedUserId { get; set; } + + internal SemaphoreSlim _rateLimitSemaphore { get; } = new(1, 1); + + internal const bool debug = false; + + private JsonSerializerOptions GetJsonSerializerOptions(JsonSerializerOptions? options = null) { + options ??= new JsonSerializerOptions(); + options.Converters.Add(new JsonFloatStringConverter()); + options.Converters.Add(new JsonDoubleStringConverter()); + options.Converters.Add(new JsonDecimalStringConverter()); + options.DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull; + return options; + } + + public async Task<HttpResponseMessage> SendUnhandledAsync(HttpRequestMessage request, CancellationToken cancellationToken) { + if(debug) await _rateLimitSemaphore.WaitAsync(cancellationToken); + Console.WriteLine($"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); + foreach (var (key, value) in AdditionalQueryParameters) request.RequestUri = request.RequestUri.AddQuery(key, value); + + // Console.WriteLine($"Sending request to {request.RequestUri}"); + + try { + var webAssemblyEnableStreamingResponseKey = + new HttpRequestOptionsKey<bool>("WebAssemblyEnableStreamingResponse"); + request.Options.Set(webAssemblyEnableStreamingResponseKey, true); + } + catch (Exception e) { + Console.WriteLine("Failed to set browser response streaming:"); + Console.WriteLine(e); + } + + HttpResponseMessage? responseMessage; + try { + responseMessage = await base.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationToken); + } + catch (Exception e) { + Console.WriteLine($"Failed to send request {request.Method} {BaseAddress}{request.RequestUri} ({Util.BytesToString(request.Content?.Headers.ContentLength ?? 0)}):\n{e}"); + throw; + } + finally { + if(debug) _rateLimitSemaphore.Release(); + } + + Console.WriteLine($"Sending {request.Method} {request.RequestUri} ({Util.BytesToString(request.Content?.Headers.ContentLength ?? 0)}) -> {(int)responseMessage.StatusCode} {responseMessage.StatusCode} ({Util.BytesToString(responseMessage.Content.Headers.ContentLength ?? 0)})"); + + return responseMessage; + } + + public async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) { + var responseMessage = await SendUnhandledAsync(request, cancellationToken); + if (responseMessage.IsSuccessStatusCode) return responseMessage; + + //error handling + var content = await responseMessage.Content.ReadAsStringAsync(cancellationToken); + if (content.Length == 0) + throw new MatrixException() { + ErrorCode = "M_UNKNOWN", + Error = "Unknown error, server returned no content" + }; + if (!content.StartsWith('{')) throw new InvalidDataException("Encountered invalid data:\n" + content); + //we have a matrix error + + MatrixException? ex = null; + try { + ex = JsonSerializer.Deserialize<MatrixException>(content); + } + catch (JsonException e) { + throw new LibMatrixException() { + ErrorCode = "M_INVALID_JSON", + Error = e.Message + "\nBody:\n" + await responseMessage.Content.ReadAsStringAsync(cancellationToken) + }; + } + + Debug.Assert(ex != null, nameof(ex) + " != null"); + ex.RawContent = content; + // Console.WriteLine($"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($"Failed to get {requestUri}: {e.Message}"); + return default; + } + } + + public async Task<T> GetFromJsonAsync<T>(string requestUri, JsonSerializerOptions? options = null, CancellationToken cancellationToken = default) { + options = GetJsonSerializerOptions(options); + // Console.WriteLine($"GetFromJsonAsync called for {requestUri} with json options {options?.ToJson(ignoreNull:true)} and cancellation token {cancellationToken}"); + 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); +#if DEBUG && false // This is only used for testing, so it's disabled by default + try { + await PostAsync("http://localhost:5116/validate/" + typeof(T).AssemblyQualifiedName, new StreamContent(responseStream), cancellationToken); + } + catch (Exception e) { + Console.WriteLine("[!!] Checking sync response failed: " + e); + } +#endif + 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")); + // Console.WriteLine($"Sending PUT {requestUri}"); + // Console.WriteLine($"Content: {JsonSerializer.Serialize(value, value.GetType(), options)}"); + // Console.WriteLine($"Type: {value.GetType().FullName}"); + 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; + } +} +#endif + +#endregion \ No newline at end of file |