/
WebException.cs
127 lines (107 loc) · 4.34 KB
/
WebException.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.ComponentModel;
using System.Diagnostics;
using System.Net.Http;
using System.Net.Sockets;
using System.Runtime.Serialization;
using System.Threading.Tasks;
namespace System.Net
{
[Serializable]
[System.Runtime.CompilerServices.TypeForwardedFrom("System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")]
public partial class WebException : InvalidOperationException, ISerializable
{
private const WebExceptionStatus DefaultStatus = WebExceptionStatus.UnknownError;
private readonly WebExceptionStatus _status = DefaultStatus;
private readonly WebResponse? _response;
public WebException()
{
}
public WebException(string? message) :
base(message)
{
}
public WebException(string? message, Exception? innerException) :
this(message, innerException, DefaultStatus, null)
{
}
public WebException(string? message, WebExceptionStatus status) :
this(message, null, status, null)
{
}
public WebException(string? message,
Exception? innerException,
WebExceptionStatus status,
WebResponse? response) :
base(message, innerException)
{
_status = status;
_response = response;
if (innerException != null)
{
HResult = innerException.HResult;
}
}
[Obsolete(Obsoletions.LegacyFormatterImplMessage, DiagnosticId = Obsoletions.LegacyFormatterImplDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
[EditorBrowsable(EditorBrowsableState.Never)]
protected WebException(SerializationInfo serializationInfo, StreamingContext streamingContext)
: base(serializationInfo, streamingContext)
{
}
public WebExceptionStatus Status => _status;
public WebResponse? Response => _response;
[Obsolete(Obsoletions.LegacyFormatterImplMessage, DiagnosticId = Obsoletions.LegacyFormatterImplDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
void ISerializable.GetObjectData(SerializationInfo serializationInfo, StreamingContext streamingContext)
{
base.GetObjectData(serializationInfo, streamingContext);
}
[Obsolete(Obsoletions.LegacyFormatterImplMessage, DiagnosticId = Obsoletions.LegacyFormatterImplDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
[EditorBrowsable(EditorBrowsableState.Never)]
public override void GetObjectData(SerializationInfo serializationInfo, StreamingContext streamingContext)
{
base.GetObjectData(serializationInfo, streamingContext);
}
internal static Exception CreateCompatibleException(Exception exception)
{
Debug.Assert(exception != null);
if (exception is HttpRequestException hre)
{
return new WebException(
exception.Message,
exception,
GetStatusFromException(hre),
null);
}
else if (exception is TaskCanceledException)
{
return new WebException(
SR.net_webstatus_Timeout,
null,
WebExceptionStatus.Timeout,
null);
}
return exception;
}
private static WebExceptionStatus GetStatusFromExceptionHelper(HttpRequestException ex)
{
SocketException? socketException = ex.InnerException as SocketException;
if (socketException is null)
{
return WebExceptionStatus.UnknownError;
}
WebExceptionStatus status;
switch (socketException.SocketErrorCode)
{
case SocketError.NoData:
case SocketError.HostNotFound:
status = WebExceptionStatus.NameResolutionFailure;
break;
default:
status = WebExceptionStatus.UnknownError;
break;
}
return status;
}
}
}