/
PclExportClient.NetStandard.cs
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/
PclExportClient.NetStandard.cs
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//Copyright (c) ServiceStack, Inc. All Rights Reserved.
//License: https://raw.github.com/ServiceStack/ServiceStack/master/license.txt
#if NETCORE
using System;
using System.Collections.Specialized;
using System.IO;
using System.Linq;
using System.Net;
using System.Threading;
using ServiceStack;
using ServiceStack.Web;
using ServiceStack.Pcl;
using System.Collections.Generic;
using System.Globalization;
namespace ServiceStack
{
public class NetStandardPclExportClient : PclExportClient
{
public static NetStandardPclExportClient Provider = new NetStandardPclExportClient();
static readonly Dictionary<string, bool> multiHeaders = new Dictionary<string, bool> (StringComparer.OrdinalIgnoreCase) {
{HttpHeaders.Allow, false},
{HttpHeaders.Accept, false},
{HttpHeaders.Authorization, false},
{HttpHeaders.AcceptRanges, false},
{HttpHeaders.AcceptCharset, false},
{HttpHeaders.AcceptEncoding, false},
{HttpHeaders.AcceptLanguage, false},
{HttpHeaders.Cookie, false},
{HttpHeaders.Connection, false},
{HttpHeaders.CacheControl, false},
{HttpHeaders.ContentEncoding, false},
{HttpHeaders.ContentLanguage, false},
{HttpHeaders.Expect, false},
{HttpHeaders.IfMatch, false},
{HttpHeaders.IfNoneMatch, false},
{HttpHeaders.Pragma, false},
{HttpHeaders.ProxyAuthenticate, false},
{HttpHeaders.ProxyAuthorization, false},
{HttpHeaders.ProxyConnection, false},
{HttpHeaders.Range, false},
{HttpHeaders.SetCookie, false},
{HttpHeaders.SetCookie2, false},
{HttpHeaders.TE, false},
{HttpHeaders.Trailer, false},
{HttpHeaders.TransferEncoding, false},
{HttpHeaders.Upgrade, false},
{HttpHeaders.Via, false},
{HttpHeaders.Vary, false},
{HttpHeaders.Warning, false}
};
static readonly Action<HttpWebRequest, DateTime> SetIfModifiedSinceDelegate =
(Action<HttpWebRequest, DateTime>)typeof(HttpWebRequest)
.GetProperty("IfModifiedSince")
?.GetSetMethod(nonPublic:true)
?.CreateDelegate(typeof(Action<HttpWebRequest, DateTime>));
public static PclExportClient Configure()
{
Configure(Provider ?? (Provider = new NetStandardPclExportClient()));
NetStandardPclExport.Configure();
return Provider;
}
public override void SetIfModifiedSince(HttpWebRequest webReq, DateTime lastModified)
{
//support for Xamarin and .NET platform
if (SetIfModifiedSinceDelegate != null)
{
SetIfModifiedSinceDelegate(webReq, lastModified);
}
else
{
#if NETCORE
if (lastModified == DateTime.MinValue)
webReq.Headers.Remove(HttpHeaders.IfModifiedSince);
else
webReq.Headers[HttpHeaders.IfModifiedSince] = lastModified.ToUniversalTime().ToString("R", new DateTimeFormatInfo());
#else
webReq.Headers[HttpHeaders.IfModifiedSince] = lastModified.ToUniversalTime().ToString("R", new DateTimeFormatInfo());
#endif
}
}
public override string GetHeader(WebHeaderCollection headers, string name, Func<string, bool> valuePredicate)
{
var values = GetValues(headers, name);
return values?.FirstOrDefault(valuePredicate);
}
//see .NET 4.6.2 Reference source
private static string[] GetValues(WebHeaderCollection headers, string header)
{
var value = headers[header];
if (value == null)
return null;
if (!multiHeaders.ContainsKey(header))
return new string[1]{value};
var tempStringCollection = new List<string>();
bool inquote = false;
int chIndex = 0;
char[] vp = new char[value.Length];
string singleValue;
for (int i = 0; i < value.Length; i++)
{
if (value[i] == '\"')
{
inquote = !inquote;
}
else if ((value[i] == ',') && !inquote)
{
singleValue = new string(vp, 0, chIndex);
tempStringCollection.Add(singleValue.Trim());
chIndex = 0;
continue;
}
vp[chIndex++] = value[i];
}
if (chIndex != 0)
{
singleValue = new string(vp, 0, chIndex);
tempStringCollection.Add(singleValue.Trim());
}
return tempStringCollection.ToArray();
}
}
public class AsyncTimer : ITimer
{
public System.Threading.Timer Timer;
public AsyncTimer(System.Threading.Timer timer)
{
Timer = timer;
}
public void Cancel()
{
if (Timer == null) return;
this.Timer.Change(Timeout.Infinite, Timeout.Infinite);
this.Dispose();
}
public void Dispose()
{
if (Timer == null) return;
this.Timer.Dispose();
this.Timer = null;
}
}
}
#endif