9569a1dea8
* I'm not a big fan of this code to be perfectly honest. It probably can be fixed better. There's possibly an error on the simulator side, or in this code, that I haven't managed to locate, when the EventQueue has an early return rather than long-polling as it should, and it's triggered by this code. Not sure if the official viewer suffers the same fault (possibly.)
364 lines
16 KiB
C#
364 lines
16 KiB
C#
/*
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* Copyright (c) 2022-2024, Sjofn, LLC.
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* All rights reserved.
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*
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* - Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* - Neither the name of the openmetaverse.co nor the names
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* of its contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.IO;
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using System.Net.Http;
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using System.Net.Http.Headers;
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using System.Threading;
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using System.Threading.Tasks;
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using OpenMetaverse;
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using OpenMetaverse.StructuredData;
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namespace LibreMetaverse
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{
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public delegate void DownloadProgressHandler(long? totalBytes, long totalBytesRead, double? progressPercentage);
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public delegate void DownloadCompleteHandler(HttpResponseMessage response, byte[] responseData, Exception error);
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public delegate void ConnectedHandler(HttpResponseMessage response);
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public static class AsyncHelper
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{
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public static void Sync(Func<Task> func) => Task.Run(func).ConfigureAwait(false);
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public static T Sync<T>(Func<Task<T>> func) => Task.Run(func).Result;
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}
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public class HttpCapsClient : HttpClient
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{
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public HttpCapsClient(HttpMessageHandler handler) : base(handler)
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{
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}
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#region GET requests
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public async Task GetRequestAsync(Uri uri, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler, ConnectedHandler connectedHandler)
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{
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using (var request = new HttpRequestMessage(HttpMethod.Get, uri))
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{
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await SendRequestAsync(request, cancellationToken, completeHandler, progressHandler, connectedHandler);
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}
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}
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public async Task GetRequestAsync(Uri uri, CancellationToken? cancellationToken, DownloadCompleteHandler completeHandler)
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{
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await GetRequestAsync(uri, cancellationToken, completeHandler, null, null);
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}
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#endregion GET requests
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#region POST requests
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public async Task PostRequestAsync(Uri uri, string contentType, byte[] payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler, ConnectedHandler connectedHandler)
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{
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using (var request = new HttpRequestMessage(HttpMethod.Post, uri))
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{
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request.Content = new ByteArrayContent(payload);
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request.Content.Headers.ContentType = new MediaTypeHeaderValue(contentType);
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await SendRequestAsync(request, cancellationToken, completeHandler, progressHandler, connectedHandler);
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}
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}
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public async Task PostRequestAsync(Uri uri, string contentType, byte[] payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler)
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{
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await PostRequestAsync(uri, contentType, payload, cancellationToken, completeHandler, null, null);
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}
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public async Task PostRequestAsync(Uri uri, OSDFormat format, OSD payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler, ConnectedHandler connectedHandler)
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{
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SerializeData(format, payload, out var serialized, out var contentType);
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using (var request = new HttpRequestMessage(HttpMethod.Post, uri))
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{
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try
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{
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request.Content = new ByteArrayContent(serialized);
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request.Content.Headers.ContentType = contentType;
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await SendRequestAsync(request, cancellationToken, completeHandler, progressHandler, connectedHandler);
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}
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catch (Exception e)
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{
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Logger.Log("Error in HTTP request; " + e, Helpers.LogLevel.Error, null, e);
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}
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}
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}
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public async Task PostRequestAsync(Uri uri, OSDFormat format, OSD payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler)
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{
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await PostRequestAsync(uri, format, payload, cancellationToken, completeHandler, null, null);
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}
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#endregion POST requests
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#region PUT requests
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public async Task PutRequestAsync(Uri uri, string contentType, byte[] payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler, ConnectedHandler connectedHandler)
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{
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using (var request = new HttpRequestMessage(HttpMethod.Put, uri))
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{
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request.Content = new ByteArrayContent(payload);
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request.Content.Headers.ContentType = new MediaTypeHeaderValue(contentType);
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await SendRequestAsync(request, cancellationToken, completeHandler, progressHandler, connectedHandler);
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}
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}
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public async Task PutRequestAsync(Uri uri, string contentType, byte[] payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler)
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{
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await PutRequestAsync(uri, contentType, payload, cancellationToken, completeHandler, null, null);
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}
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public async Task PutRequestAsync(Uri uri, OSDFormat format, OSD payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler, ConnectedHandler connectedHandler)
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{
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SerializeData(format, payload, out var serialized, out var contentType);
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using (var request = new HttpRequestMessage(HttpMethod.Put, uri))
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{
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request.Content = new ByteArrayContent(serialized);
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request.Content.Headers.ContentType = contentType;
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await SendRequestAsync(request, cancellationToken, completeHandler, progressHandler, connectedHandler);
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}
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}
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public async Task PutRequestAsync(Uri uri, OSDFormat format, OSD payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler)
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{
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await PutRequestAsync(uri, format, payload, cancellationToken, completeHandler, null, null);
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}
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#endregion PUT requests
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#region PATCH requests
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public async Task PatchRequestAsync(Uri uri, string contentType, byte[] payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler, ConnectedHandler connectedHandler)
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{
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// TODO: 2.1 Standard has built in HttpMethod.Patch. Fix when the time comes we can utilize it.
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using (var request = new HttpRequestMessage(new HttpMethod("PATCH"), uri))
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{
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request.Content = new ByteArrayContent(payload);
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request.Content.Headers.ContentType = new MediaTypeHeaderValue(contentType);
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await SendRequestAsync(request, cancellationToken, completeHandler, progressHandler, connectedHandler);
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}
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}
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public async Task PatchRequestAsync(Uri uri, string contentType, byte[] payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler)
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{
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await PatchRequestAsync(uri, contentType, payload, cancellationToken, completeHandler, null, null);
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}
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public async Task PatchRequestAsync(Uri uri, OSDFormat format, OSD payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler, ConnectedHandler connectedHandler)
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{
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SerializeData(format, payload, out var serialized, out var contentType);
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// TODO: 2.1 Standard has built in HttpMethod.Patch. Fix when the time comes we can utilize it.
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using (var request = new HttpRequestMessage(new HttpMethod("PATCH"), uri))
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{
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request.Content = new ByteArrayContent(serialized);
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request.Content.Headers.ContentType = contentType;
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await SendRequestAsync(request, cancellationToken, completeHandler, progressHandler, connectedHandler);
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}
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}
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public async Task PatchRequestAsync(Uri uri, OSDFormat format, OSD payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler)
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{
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await PatchRequestAsync(uri, format, payload, cancellationToken, completeHandler, null, null);
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}
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#endregion PATCH requests
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#region DELETE requests
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public async Task DeleteRequestAsync(Uri uri, string contentType, byte[] payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler, ConnectedHandler connectedHandler)
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{
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using (var request = new HttpRequestMessage(HttpMethod.Delete, uri))
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{
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request.Content = new ByteArrayContent(payload);
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request.Content.Headers.ContentType = new MediaTypeHeaderValue(contentType);
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await SendRequestAsync(request, cancellationToken, completeHandler, progressHandler, connectedHandler);
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}
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}
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public async Task DeleteRequestAsync(Uri uri, string contentType, byte[] payload,
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CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler)
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{
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await DeleteRequestAsync(uri, contentType, payload, cancellationToken, completeHandler, null, null);
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}
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public async Task DeleteRequestAsync(Uri uri, OSDFormat format, OSD payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler, ConnectedHandler connectedHandler)
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{
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SerializeData(format, payload, out var serialized, out var contentType);
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using (var request = new HttpRequestMessage(HttpMethod.Delete, uri))
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{
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request.Content = new ByteArrayContent(serialized);
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request.Content.Headers.ContentType = contentType;
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await SendRequestAsync(request, cancellationToken, completeHandler, progressHandler, connectedHandler);
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}
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}
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public async Task DeleteRequestAsync(Uri uri, OSDFormat format, OSD payload, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler)
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{
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await DeleteRequestAsync(uri, format, payload, cancellationToken, completeHandler, null, null);
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}
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#endregion DELETE requests
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/// /// /// /// /// /// /// /// /// /// /// ///
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private async Task SendRequestAsync(HttpRequestMessage request, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler, ConnectedHandler connectedHandler)
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{
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try
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{
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using (var response = (cancellationToken.HasValue)
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? await SendAsync(request, HttpCompletionOption.ResponseHeadersRead,
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cancellationToken.Value)
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: await SendAsync(request, HttpCompletionOption.ResponseHeadersRead))
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{
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if (!response.IsSuccessStatusCode)
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{
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completeHandler?.Invoke(response, null,
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new HttpRequestException(response.StatusCode + " " +
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response.ReasonPhrase));
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}
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connectedHandler?.Invoke(response);
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await ProcessResponseAsync(response, cancellationToken, completeHandler, progressHandler);
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}
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}
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catch (TaskCanceledException)
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{
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/* noop */
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}
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catch (HttpRequestException httpReqEx)
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{
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completeHandler?.Invoke(null, null, httpReqEx);
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}
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catch (IOException ioex)
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{
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completeHandler?.Invoke(null, null, ioex);
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}
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}
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private static async Task ProcessResponseAsync(HttpResponseMessage response, CancellationToken? cancellationToken,
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DownloadCompleteHandler completeHandler, DownloadProgressHandler progressHandler)
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{
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var totalBytes = response.Content.Headers.ContentLength;
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Stream contentStream = response.Content.ReadAsStreamAsync().Result;
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var length = (int)(totalBytes ?? 8192);
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var totalSize = totalBytes ?? 0;
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var ms = totalBytes.HasValue ? null : new MemoryStream();
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var buffer = new byte[length];
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byte[] responseData = null;
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Exception error = null;
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var bytesRead = 0;
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var offset = 0;
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var totalBytesRead = 0;
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try
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{
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while (contentStream != null /* (╯°□°)╯︵ ┻━┻ */
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&& ((!cancellationToken.HasValue && (bytesRead = await contentStream.ReadAsync(buffer, offset, length)) != 0)
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|| (cancellationToken.HasValue && (bytesRead = await contentStream.ReadAsync(buffer, offset, length, cancellationToken.Value)) != 0)))
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{
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totalBytesRead += bytesRead;
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if (totalBytes.HasValue)
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{
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offset += bytesRead;
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length -= bytesRead;
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}
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else
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{
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totalSize += (length - bytesRead);
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ms.Write(buffer, 0, bytesRead);
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}
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double? progressPercent = null;
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if (totalBytes.HasValue)
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{
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progressPercent = Math.Round((double)totalBytesRead / totalBytes.Value * 100, 2);
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}
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progressHandler?.Invoke(totalBytes, totalBytesRead, progressPercent);
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}
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if (totalBytes.HasValue)
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{
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responseData = buffer;
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}
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else
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{
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responseData = ms.ToArray();
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ms.Close();
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ms.Dispose();
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}
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}
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catch (Exception ex)
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{
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error = ex;
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}
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completeHandler?.Invoke(response, responseData, error);
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}
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private static void SerializeData(OSDFormat format, OSD data,
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out byte[] serializedData, out MediaTypeHeaderValue contentType)
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{
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switch (format)
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{
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case OSDFormat.Xml:
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serializedData = OSDParser.SerializeLLSDXmlBytes(data);
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contentType = new MediaTypeHeaderValue("application/llsd+xml");
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break;
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case OSDFormat.Binary:
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serializedData = OSDParser.SerializeLLSDBinary(data);
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contentType = new MediaTypeHeaderValue("application/llsd+binary");
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break;
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case OSDFormat.Json:
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default:
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serializedData = System.Text.Encoding.UTF8.GetBytes(OSDParser.SerializeJsonString(data));
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contentType = new MediaTypeHeaderValue("application/llsd+json");
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break;
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}
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}
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}
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}
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