blob: 0df6c90cecbc2ac67452792629491befafcd92e4 (
plain)
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
|
// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Web.Mvc.Properties;
namespace System.Web.Mvc
{
public class SessionStateTempDataProvider : ITempDataProvider
{
internal const string TempDataSessionStateKey = "__ControllerTempData";
public virtual IDictionary<string, object> LoadTempData(ControllerContext controllerContext)
{
HttpSessionStateBase session = controllerContext.HttpContext.Session;
if (session != null)
{
Dictionary<string, object> tempDataDictionary = session[TempDataSessionStateKey] as Dictionary<string, object>;
if (tempDataDictionary != null)
{
// If we got it from Session, remove it so that no other request gets it
session.Remove(TempDataSessionStateKey);
return tempDataDictionary;
}
}
return new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase);
}
public virtual void SaveTempData(ControllerContext controllerContext, IDictionary<string, object> values)
{
if (controllerContext == null)
{
throw new ArgumentNullException("controllerContext");
}
HttpSessionStateBase session = controllerContext.HttpContext.Session;
bool isDirty = (values != null && values.Count > 0);
if (session == null)
{
if (isDirty)
{
throw new InvalidOperationException(MvcResources.SessionStateTempDataProvider_SessionStateDisabled);
}
}
else
{
if (isDirty)
{
session[TempDataSessionStateKey] = values;
}
else
{
// Since the default implementation of Remove() (from SessionStateItemCollection) dirties the
// collection, we shouldn't call it unless we really do need to remove the existing key.
if (session[TempDataSessionStateKey] != null)
{
session.Remove(TempDataSessionStateKey);
}
}
}
}
}
}
|