45 lines
2.4 KiB
Markdown
45 lines
2.4 KiB
Markdown
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## Calls to ClaimsIdentity constructors
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### Scope
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Edge
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### Version Introduced
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4.6.2
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### Source Analyzer Status
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Investigating
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### Change Description
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Starting with the .NET Framework 4.6.2, there is a change in how `T:System.Security.Claims.ClaimsIdentity` constructors with an `T:System.Security.Principal.IIdentity` parameter set the `P:System.Security.Claims.ClaimsIdentify.Actor` property. If the `T:System.Security.Principal.IIdentity` argument is a `T:System.Security.Claims.ClaimsIdentity` object, and the `P:System.Security.Claims.ClaimsIdentify.Actor` property of that `T:System.Security.Claims.ClaimsIdentity` object is not `null`, the `P:System.Security.Claims.ClaimsIdentify.Actor` property is attached by using the `M:System.Security.Claims.ClaimsIdentity.Clone` method. In the Framework 4.6.1 and earlier versions, the `P:System.Security.Claims.ClaimsIdentify.Actor` property is attached as an existing reference.
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Because of this change, starting with the .NET Framework 4.6.2, the `P:System.Security.Claims.ClaimsIdentify.Actor` property of the new `T:System.Security.Claims.ClaimsIdentity` object is not equal to the `P:System.Security.Claims.ClaimsIdentify.Actor` property of the constructor's `T:System.Security.Principal.IIdentity` argument. In the .NET Framework 4.6.1 and earlier versions, it is equal.
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- [X] Quirked
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- [ ] Build-time break
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### Recommended Action
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If this behavior is undesirable, you can restore the previous behavior by setting the `Switch.System.Security.ClaimsIdentity.SetActorAsReferenceWhenCopyingClaimsIdentity` switch in your application configuration file to `true`. This requires that you add the following to the `<runtime>` section of your web.config file:
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```xml
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<configuration>
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<runtime>
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<AppContextSwitchOverrides value="Switch.System.Security.ClaimsIdentity.SetActorAsReferenceWhenCopyingClaimsIdentity=true" />
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</runtime>
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</configuration>
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```
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### Affected APIs
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- `M:System.Security.Claims.ClaimsIdentity.#ctor(System.Security.Principal.IIdentity)`
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- `M:System.Security.Claims.ClaimsIdentity.#ctor(System.Security.Principal.IIdentity,System.Collections.Generic.IEnumerable{System.Security.Claims.Claim})`
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- `M:System.Security.Claims.ClaimsIdentity.#ctor(System.Security.Principal.IIdentity,System.Collections.Generic.IEnumerable{System.Security.Claims.Claim},System.String,System.String,System.String)`
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### Category
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Core
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<!--
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### Original Bug
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227024
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-->
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<!-- breaking change id: 164 -->
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