Files
ArchiSteamFarm/ArchiSteamFarm/Web/WebBrowser.cs
JustArchi e60b54e402 Refactor EVERYTHING
Directories structure + namespaces relevant to them
2021-05-08 01:37:22 +02:00

914 lines
32 KiB
C#

// _ _ _ ____ _ _____
// / \ _ __ ___ | |__ (_)/ ___| | |_ ___ __ _ _ __ ___ | ___|__ _ _ __ _ __ ___
// / _ \ | '__|/ __|| '_ \ | |\___ \ | __|/ _ \ / _` || '_ ` _ \ | |_ / _` || '__|| '_ ` _ \
// / ___ \ | | | (__ | | | || | ___) || |_| __/| (_| || | | | | || _|| (_| || | | | | | | |
// /_/ \_\|_| \___||_| |_||_||____/ \__|\___| \__,_||_| |_| |_||_| \__,_||_| |_| |_| |_|
// |
// Copyright 2015-2021 Łukasz "JustArchi" Domeradzki
// Contact: JustArchi@JustArchi.net
// |
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// |
// http://www.apache.org/licenses/LICENSE-2.0
// |
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using ArchiSteamFarm.Core;
using ArchiSteamFarm.Localization;
using ArchiSteamFarm.NLog;
using ArchiSteamFarm.RuntimeCompatibility;
using ArchiSteamFarm.Web.Responses;
using JetBrains.Annotations;
using Newtonsoft.Json;
namespace ArchiSteamFarm.Web {
public sealed class WebBrowser : IDisposable {
[PublicAPI]
public const byte MaxTries = 5; // Defines maximum number of recommended tries for a single request
internal const byte MaxConnections = 5; // Defines maximum number of connections per ServicePoint. Be careful, as it also defines maximum number of sockets in CLOSE_WAIT state
private const byte ExtendedTimeoutMultiplier = 10; // Defines multiplier of timeout for WebBrowsers dealing with huge data (ASF update)
private const byte MaxIdleTime = 15; // Defines in seconds, how long socket is allowed to stay in CLOSE_WAIT state after there are no connections to it
[PublicAPI]
public CookieContainer CookieContainer { get; } = new();
[PublicAPI]
public TimeSpan Timeout => HttpClient.Timeout;
private readonly ArchiLogger ArchiLogger;
private readonly HttpClient HttpClient;
private readonly HttpClientHandler HttpClientHandler;
internal WebBrowser(ArchiLogger archiLogger, IWebProxy? webProxy = null, bool extendedTimeout = false) {
ArchiLogger = archiLogger ?? throw new ArgumentNullException(nameof(archiLogger));
HttpClientHandler = new HttpClientHandler {
AllowAutoRedirect = false, // This must be false if we want to handle custom redirection schemes such as "steammobile://"
#if NETFRAMEWORK
AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip,
#else
AutomaticDecompression = DecompressionMethods.All,
#endif
CookieContainer = CookieContainer
};
if (webProxy != null) {
HttpClientHandler.Proxy = webProxy;
HttpClientHandler.UseProxy = true;
}
if (!StaticHelpers.IsRunningOnMono) {
HttpClientHandler.MaxConnectionsPerServer = MaxConnections;
}
HttpClient = GenerateDisposableHttpClient(extendedTimeout);
}
public void Dispose() {
HttpClient.Dispose();
HttpClientHandler.Dispose();
}
[PublicAPI]
public HttpClient GenerateDisposableHttpClient(bool extendedTimeout = false) {
if (ASF.GlobalConfig == null) {
throw new InvalidOperationException(nameof(ASF.GlobalConfig));
}
HttpClient result = new(HttpClientHandler, false) {
#if !NETFRAMEWORK
DefaultRequestVersion = HttpVersion.Version20,
#endif
Timeout = TimeSpan.FromSeconds(extendedTimeout ? ExtendedTimeoutMultiplier * ASF.GlobalConfig.ConnectionTimeout : ASF.GlobalConfig.ConnectionTimeout)
};
// Most web services expect that UserAgent is set, so we declare it globally
// If you by any chance came here with a very "clever" idea of hiding your ass by changing default ASF user-agent then here is a very good advice from me: don't, for your own safety - you've been warned
result.DefaultRequestHeaders.UserAgent.ParseAdd(SharedInfo.PublicIdentifier + "/" + SharedInfo.Version + " (+" + SharedInfo.ProjectURL + ")");
return result;
}
[PublicAPI]
public async Task<BinaryResponse?> UrlGetToBinary(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries, IProgress<byte>? progressReporter = null) {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
for (byte i = 0; i < maxTries; i++) {
StreamResponse? response = await UrlGetToStream(request, headers, referer, requestOptions | ERequestOptions.ReturnClientErrors, 1).ConfigureAwait(false);
if (response == null) {
// Request timed out, try again
continue;
}
await using (response.ConfigureAwait(false)) {
if (response.StatusCode.IsClientErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
// We're not handling this error, do not try again
break;
}
} else if (response.StatusCode.IsServerErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
// We're not handling this error, try again
continue;
}
}
progressReporter?.Report(0);
#pragma warning disable CA2000 // False positive, we're actually wrapping it in the using clause below exactly for that purpose
MemoryStream ms = new((int) response.Length);
#pragma warning restore CA2000 // False positive, we're actually wrapping it in the using clause below exactly for that purpose
#if NETFRAMEWORK
#pragma warning disable CA1508 // False positive, ms is not null here indeed, but using clause is needed for dispose
using (ms) {
#pragma warning restore CA1508 // False positive, ms is not null here indeed, but using clause is needed for dispose
#else
await using (ms.ConfigureAwait(false)) {
#endif
try {
byte batch = 0;
long readThisBatch = 0;
long batchIncreaseSize = response.Length / 100;
byte[] buffer = new byte[8192]; // This is HttpClient's buffer, using more doesn't make sense
while (response.Content.CanRead) {
#if NETFRAMEWORK
int read = await response.Content.ReadAsync(buffer, 0, buffer.Length).ConfigureAwait(false);
#else
int read = await response.Content.ReadAsync(buffer.AsMemory(0, buffer.Length)).ConfigureAwait(false);
#endif
if (read == 0) {
break;
}
#if NETFRAMEWORK
await ms.WriteAsync(buffer, 0, read).ConfigureAwait(false);
#else
await ms.WriteAsync(buffer.AsMemory(0, read)).ConfigureAwait(false);
#endif
if ((batchIncreaseSize == 0) || (batch >= 99)) {
continue;
}
readThisBatch += read;
if (readThisBatch < batchIncreaseSize) {
continue;
}
readThisBatch -= batchIncreaseSize;
progressReporter?.Report(++batch);
}
} catch (Exception e) {
ArchiLogger.LogGenericDebuggingException(e);
return null;
}
progressReporter?.Report(100);
return new BinaryResponse(response, ms.ToArray());
}
}
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return null;
}
[PublicAPI]
public async Task<HtmlDocumentResponse?> UrlGetToHtmlDocument(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries) {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
for (byte i = 0; i < maxTries; i++) {
StreamResponse? response = await UrlGetToStream(request, headers, referer, requestOptions | ERequestOptions.ReturnClientErrors, 1).ConfigureAwait(false);
if (response == null) {
// Request timed out, try again
continue;
}
await using (response.ConfigureAwait(false)) {
if (response.StatusCode.IsClientErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
// We're not handling this error, do not try again
break;
}
} else if (response.StatusCode.IsServerErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
// We're not handling this error, try again
continue;
}
}
try {
return await HtmlDocumentResponse.Create(response).ConfigureAwait(false);
} catch (Exception e) {
ArchiLogger.LogGenericWarningException(e);
}
}
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return null;
}
[PublicAPI]
public async Task<ObjectResponse<T>?> UrlGetToJsonObject<T>(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries) {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
for (byte i = 0; i < maxTries; i++) {
StreamResponse? response = await UrlGetToStream(request, headers, referer, requestOptions | ERequestOptions.ReturnClientErrors, 1).ConfigureAwait(false);
if (response == null) {
// Request timed out, try again
continue;
}
await using (response.ConfigureAwait(false)) {
if (response.StatusCode.IsClientErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
// We're not handling this error, do not try again
break;
}
} else if (response.StatusCode.IsServerErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
// We're not handling this error, try again
continue;
}
}
T? obj;
try {
using StreamReader streamReader = new(response.Content);
using JsonTextReader jsonReader = new(streamReader);
JsonSerializer serializer = new();
obj = serializer.Deserialize<T>(jsonReader);
if (obj is null) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorIsEmpty, nameof(obj)));
continue;
}
} catch (Exception e) {
ArchiLogger.LogGenericWarningException(e);
continue;
}
return new ObjectResponse<T>(response, obj);
}
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return null;
}
[PublicAPI]
public async Task<StreamResponse?> UrlGetToStream(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries) {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
for (byte i = 0; i < maxTries; i++) {
HttpResponseMessage? response = await InternalGet(request, headers, referer, requestOptions, HttpCompletionOption.ResponseHeadersRead).ConfigureAwait(false);
if (response == null) {
// Request timed out, try again
continue;
}
if (response.StatusCode.IsClientErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
// We're not handling this error, do not try again
break;
}
} else if (response.StatusCode.IsServerErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
// We're not handling this error, try again
continue;
}
}
return new StreamResponse(response, await response.Content.ReadAsStreamAsync().ConfigureAwait(false));
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return null;
}
[PublicAPI]
public async Task<StringResponse?> UrlGetToString(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries) {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
for (byte i = 0; i < maxTries; i++) {
using HttpResponseMessage? response = await InternalGet(request, headers, referer, requestOptions).ConfigureAwait(false);
if (response == null) {
// Request timed out, try again
continue;
}
if (response.StatusCode.IsClientErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
// We're not handling this error, do not try again
break;
}
} else if (response.StatusCode.IsServerErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
// We're not handling this error, try again
continue;
}
}
return new StringResponse(response, await response.Content.ReadAsStringAsync().ConfigureAwait(false));
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return null;
}
[PublicAPI]
public async Task<XmlDocumentResponse?> UrlGetToXmlDocument(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries) {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
for (byte i = 0; i < maxTries; i++) {
StreamResponse? response = await UrlGetToStream(request, headers, referer, requestOptions | ERequestOptions.ReturnClientErrors, 1).ConfigureAwait(false);
if (response == null) {
// Request timed out, try again
continue;
}
await using (response.ConfigureAwait(false)) {
if (response.StatusCode.IsClientErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
// We're not handling this error, do not try again
break;
}
} else if (response.StatusCode.IsServerErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
// We're not handling this error, try again
continue;
}
}
XmlDocument xmlDocument = new();
try {
using XmlReader xmlReader = XmlReader.Create(response.Content, new XmlReaderSettings { XmlResolver = null });
xmlDocument.Load(xmlReader);
} catch (Exception e) {
ArchiLogger.LogGenericWarningException(e);
continue;
}
return new XmlDocumentResponse(response, xmlDocument);
}
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return null;
}
[PublicAPI]
public async Task<BasicResponse?> UrlHead(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries) {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
BasicResponse? result = null;
for (byte i = 0; i < maxTries; i++) {
using HttpResponseMessage? response = await InternalHead(request, headers, referer, requestOptions).ConfigureAwait(false);
if (response == null) {
continue;
}
if (response.StatusCode.IsClientErrorCode()) {
if (requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
result = new BasicResponse(response);
}
break;
}
if (response.StatusCode.IsServerErrorCode()) {
if (requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
result = new BasicResponse(response);
}
continue;
}
return new BasicResponse(response);
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return result;
}
[PublicAPI]
public async Task<BasicResponse?> UrlPost<T>(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, T? data = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries) where T : class {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
BasicResponse? result = null;
for (byte i = 0; i < maxTries; i++) {
using HttpResponseMessage? response = await InternalPost(request, headers, data, referer, requestOptions).ConfigureAwait(false);
if (response == null) {
continue;
}
if (response.StatusCode.IsClientErrorCode()) {
if (requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
result = new BasicResponse(response);
}
break;
}
if (response.StatusCode.IsServerErrorCode()) {
if (requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
result = new BasicResponse(response);
}
continue;
}
return new BasicResponse(response);
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return result;
}
[PublicAPI]
public async Task<HtmlDocumentResponse?> UrlPostToHtmlDocument<T>(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, T? data = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries) where T : class {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
for (byte i = 0; i < maxTries; i++) {
StreamResponse? response = await UrlPostToStream(request, headers, data, referer, requestOptions | ERequestOptions.ReturnClientErrors, 1).ConfigureAwait(false);
if (response == null) {
// Request timed out, try again
continue;
}
await using (response.ConfigureAwait(false)) {
if (response.StatusCode.IsClientErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
// We're not handling this error, do not try again
break;
}
} else if (response.StatusCode.IsServerErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
// We're not handling this error, try again
continue;
}
}
try {
return await HtmlDocumentResponse.Create(response).ConfigureAwait(false);
} catch (Exception e) {
ArchiLogger.LogGenericWarningException(e);
}
}
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return null;
}
[PublicAPI]
public async Task<ObjectResponse<TResult>?> UrlPostToJsonObject<TResult, TData>(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, TData? data = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries) where TData : class {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
for (byte i = 0; i < maxTries; i++) {
StreamResponse? response = await UrlPostToStream(request, headers, data, referer, requestOptions | ERequestOptions.ReturnClientErrors, 1).ConfigureAwait(false);
if (response == null) {
// Request timed out, try again
continue;
}
await using (response.ConfigureAwait(false)) {
if (response.StatusCode.IsClientErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
// We're not handling this error, do not try again
break;
}
} else if (response.StatusCode.IsServerErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
// We're not handling this error, try again
continue;
}
}
TResult? obj;
try {
using StreamReader steamReader = new(response.Content);
using JsonReader jsonReader = new JsonTextReader(steamReader);
JsonSerializer serializer = new();
obj = serializer.Deserialize<TResult>(jsonReader);
if (obj is null) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorIsEmpty, nameof(obj)));
continue;
}
} catch (Exception e) {
ArchiLogger.LogGenericWarningException(e);
continue;
}
return new ObjectResponse<TResult>(response, obj);
}
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return null;
}
[PublicAPI]
public async Task<StreamResponse?> UrlPostToStream<T>(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, T? data = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, byte maxTries = MaxTries) where T : class {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (maxTries == 0) {
throw new ArgumentOutOfRangeException(nameof(maxTries));
}
for (byte i = 0; i < maxTries; i++) {
HttpResponseMessage? response = await InternalPost(request, headers, data, referer, requestOptions, HttpCompletionOption.ResponseHeadersRead).ConfigureAwait(false);
if (response == null) {
// Request timed out, try again
continue;
}
if (response.StatusCode.IsClientErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnClientErrors)) {
// We're not handling this error, do not try again
break;
}
} else if (response.StatusCode.IsServerErrorCode()) {
if (!requestOptions.HasFlag(ERequestOptions.ReturnServerErrors)) {
// We're not handling this error, try again
continue;
}
}
return new StreamResponse(response, await response.Content.ReadAsStreamAsync().ConfigureAwait(false));
}
if (maxTries > 1) {
ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.ErrorRequestFailedTooManyTimes, maxTries));
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.ErrorFailingRequest, request));
}
return null;
}
internal static void Init() {
// Set max connection limit from default of 2 to desired value
ServicePointManager.DefaultConnectionLimit = MaxConnections;
// Set max idle time from default of 100 seconds (100 * 1000) to desired value
ServicePointManager.MaxServicePointIdleTime = MaxIdleTime * 1000;
// Don't use Expect100Continue, we're sure about our POSTs, save some TCP packets
ServicePointManager.Expect100Continue = false;
// Reuse ports if possible
if (!StaticHelpers.IsRunningOnMono) {
ServicePointManager.ReusePort = true;
}
}
private async Task<HttpResponseMessage?> InternalGet(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, HttpCompletionOption httpCompletionOption = HttpCompletionOption.ResponseContentRead) {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
return await InternalRequest<object>(request, HttpMethod.Get, headers, null, referer, requestOptions, httpCompletionOption).ConfigureAwait(false);
}
private async Task<HttpResponseMessage?> InternalHead(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, HttpCompletionOption httpCompletionOption = HttpCompletionOption.ResponseContentRead) {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
return await InternalRequest<object>(request, HttpMethod.Head, headers, null, referer, requestOptions, httpCompletionOption).ConfigureAwait(false);
}
private async Task<HttpResponseMessage?> InternalPost<T>(Uri request, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, T? data = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, HttpCompletionOption httpCompletionOption = HttpCompletionOption.ResponseContentRead) where T : class {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
return await InternalRequest(request, HttpMethod.Post, headers, data, referer, requestOptions, httpCompletionOption).ConfigureAwait(false);
}
private async Task<HttpResponseMessage?> InternalRequest<T>(Uri request, HttpMethod httpMethod, IReadOnlyCollection<KeyValuePair<string, string>>? headers = null, T? data = null, Uri? referer = null, ERequestOptions requestOptions = ERequestOptions.None, HttpCompletionOption httpCompletionOption = HttpCompletionOption.ResponseContentRead, byte maxRedirections = MaxTries) where T : class {
if (request == null) {
throw new ArgumentNullException(nameof(request));
}
if (httpMethod == null) {
throw new ArgumentNullException(nameof(httpMethod));
}
HttpResponseMessage response;
using (HttpRequestMessage requestMessage = new(httpMethod, request)) {
#if !NETFRAMEWORK
requestMessage.Version = HttpClient.DefaultRequestVersion;
#endif
if (headers != null) {
foreach ((string header, string value) in headers) {
requestMessage.Headers.Add(header, value);
}
}
if (data != null) {
switch (data) {
case HttpContent content:
requestMessage.Content = content;
break;
case IReadOnlyCollection<KeyValuePair<string?, string?>> dictionary:
try {
requestMessage.Content = new FormUrlEncodedContent(dictionary);
} catch (UriFormatException) {
requestMessage.Content = new StringContent(string.Join("&", dictionary.Select(kv => WebUtility.UrlEncode(kv.Key) + "=" + WebUtility.UrlEncode(kv.Value))), null, "application/x-www-form-urlencoded");
}
break;
case string text:
requestMessage.Content = new StringContent(text);
break;
default:
requestMessage.Content = new StringContent(JsonConvert.SerializeObject(data), Encoding.UTF8, "application/json");
break;
}
}
if (referer != null) {
requestMessage.Headers.Referrer = referer;
}
if (Debugging.IsUserDebugging) {
ArchiLogger.LogGenericDebug(httpMethod + " " + request);
}
try {
response = await HttpClient.SendAsync(requestMessage, httpCompletionOption).ConfigureAwait(false);
} catch (Exception e) {
ArchiLogger.LogGenericDebuggingException(e);
return null;
} finally {
if (data is HttpContent) {
// We reset the request content to null, as our http content will get disposed otherwise, and we still need it for subsequent calls, such as redirections or retries
requestMessage.Content = null;
}
}
}
if (Debugging.IsUserDebugging) {
ArchiLogger.LogGenericDebug(response.StatusCode + " <- " + httpMethod + " " + request);
}
if (response.IsSuccessStatusCode) {
return response;
}
// WARNING: We still have not disposed response by now, make sure to dispose it ASAP if we're not returning it!
if (response.StatusCode is >= HttpStatusCode.Ambiguous and < HttpStatusCode.BadRequest && (maxRedirections > 0)) {
Uri? redirectUri = response.Headers.Location;
if (redirectUri == null) {
ArchiLogger.LogNullError(nameof(redirectUri));
return null;
}
if (redirectUri.IsAbsoluteUri) {
switch (redirectUri.Scheme) {
case "http":
case "https":
break;
case "steammobile":
// Those redirections are invalid, but we're aware of that and we have extra logic for them
return response;
default:
// We have no clue about those, but maybe HttpClient can handle them for us
ArchiLogger.LogGenericError(string.Format(CultureInfo.CurrentCulture, Strings.WarningUnknownValuePleaseReport, nameof(redirectUri.Scheme), redirectUri.Scheme));
break;
}
} else {
redirectUri = new Uri(request, redirectUri);
}
switch (response.StatusCode) {
case HttpStatusCode.MovedPermanently: // Per https://tools.ietf.org/html/rfc7231#section-6.4.2, a 301 redirect may be performed using a GET request
case HttpStatusCode.Redirect: // Per https://tools.ietf.org/html/rfc7231#section-6.4.3, a 302 redirect may be performed using a GET request
case HttpStatusCode.SeeOther: // Per https://tools.ietf.org/html/rfc7231#section-6.4.4, a 303 redirect should be performed using a GET request
if (httpMethod != HttpMethod.Head) {
httpMethod = HttpMethod.Get;
}
// Data doesn't make any sense for a fetch request, clear it in case it's being used
data = null;
break;
}
response.Dispose();
// Per https://tools.ietf.org/html/rfc7231#section-7.1.2, a redirect location without a fragment should inherit the fragment from the original URI
if (!string.IsNullOrEmpty(request.Fragment) && string.IsNullOrEmpty(redirectUri.Fragment)) {
redirectUri = new UriBuilder(redirectUri) { Fragment = request.Fragment }.Uri;
}
return await InternalRequest(redirectUri, httpMethod, headers, data, referer, requestOptions, httpCompletionOption, --maxRedirections).ConfigureAwait(false);
}
if (!Debugging.IsUserDebugging) {
ArchiLogger.LogGenericDebug(response.StatusCode + " <- " + httpMethod + " " + request);
}
if (response.StatusCode.IsClientErrorCode()) {
if (Debugging.IsUserDebugging) {
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.Content, await response.Content.ReadAsStringAsync().ConfigureAwait(false)));
}
// Do not retry on client errors
return response;
}
if (requestOptions.HasFlag(ERequestOptions.ReturnServerErrors) && response.StatusCode.IsServerErrorCode()) {
if (Debugging.IsUserDebugging) {
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.Content, await response.Content.ReadAsStringAsync().ConfigureAwait(false)));
}
// Do not retry on server errors in this case
return response;
}
using (response) {
if (Debugging.IsUserDebugging) {
ArchiLogger.LogGenericDebug(string.Format(CultureInfo.CurrentCulture, Strings.Content, await response.Content.ReadAsStringAsync().ConfigureAwait(false)));
}
return null;
}
}
[Flags]
public enum ERequestOptions : byte {
None = 0,
ReturnClientErrors = 1,
ReturnServerErrors = 2
}
}
}