错误:“发生操作错误"在 System.DirectoryServices.AccountManagement.UserPrincipal.FindByIdentity

Error: quot;An operations error occurredquot; in System.DirectoryServices.AccountManagement.UserPrincipal.FindByIdentity(错误:“发生操作错误在 System.DirectoryServices.AccountManagement.UserPrincipal.FindByIdentity)

问题描述

我有以下代码在我的 MVC3 Web 应用程序中检索给定用户名的 AD 组:

I have the following code to retrieve AD groups of a given user name in my MVC3 web application:

PrincipalContext userDomain = new PrincipalContext(ContextType.Domain, username.Split('\')[0]);
UserPrincipal user = UserPrincipal.FindByIdentity(userDomain, username);
PrincipalSearchResult<Principal> memberOfGroups = user.GetGroups();
IEnumerator<Principal> memberOfGroupsEnumerator = memberOfGroups.GetEnumerator();
List<string> userADGroups = new List<string>();

try
{
    while (memberOfGroupsEnumerator.MoveNext())
    {
        userADGroups.Add(memberOfGroupsEnumerator.Current.ToString());
    }
}
catch
{
    // When trying to access AD groups of a different domain, issues can arise at the end of the enumerator. These may be ignored.

}

这在本地工作正常，但是当部署到网络上的另一台机器上时，会出现以下错误:

This works fine locally but when deployed onto another machine on the network errors out with the following error:

发生操作错误.

错误的堆栈跟踪:

System.DirectoryServices.DirectoryServicesCOMException (0x80072020):发生操作错误.
在 System.DirectoryServices.DirectoryEntry.Bind(布尔 throwIfFail)
在 System.DirectoryServices.DirectoryEntry.Bind()
在 System.DirectoryServices.DirectoryEntry.get_AdsObject()
在 System.DirectoryServices.PropertyValueCollection.PopulateList()
在 System.DirectoryServices.PropertyValueCollection..ctor(DirectoryEntry条目，字符串属性名称)
在 System.DirectoryServices.PropertyCollection.get_Item(String propertyName)
在 System.DirectoryServices.AccountManagement.PrincipalContext.DoLDAPDirectoryInitNoContainer()
在 System.DirectoryServices.AccountManagement.PrincipalContext.DoDomainInit()
在 System.DirectoryServices.AccountManagement.PrincipalContext.Initialize()
在 System.DirectoryServices.AccountManagement.PrincipalContext.get_QueryCtx()
在 System.DirectoryServices.AccountManagement.Principal.FindByIdentityWithTypeHelper(PrincipalContext上下文，类型 principalType，Nullable`1 identityType，字符串 identityValue，DateTime refDate)
在 System.DirectoryServices.AccountManagement.UserPrincipal.FindByIdentity(PrincipalContext 上下文，字符串 identityValue)
在 MvcSFIWebSite.Models.User..ctor(字符串用户名)

System.DirectoryServices.DirectoryServicesCOMException (0x80072020): An operations error occurred.
at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
at System.DirectoryServices.DirectoryEntry.Bind()
at System.DirectoryServices.DirectoryEntry.get_AdsObject()
at System.DirectoryServices.PropertyValueCollection.PopulateList()
at System.DirectoryServices.PropertyValueCollection..ctor(DirectoryEntry entry, String propertyName)
at System.DirectoryServices.PropertyCollection.get_Item(String propertyName)
at System.DirectoryServices.AccountManagement.PrincipalContext.DoLDAPDirectoryInitNoContainer()
at System.DirectoryServices.AccountManagement.PrincipalContext.DoDomainInit()
at System.DirectoryServices.AccountManagement.PrincipalContext.Initialize()
at System.DirectoryServices.AccountManagement.PrincipalContext.get_QueryCtx()
at System.DirectoryServices.AccountManagement.Principal.FindByIdentityWithTypeHelper(PrincipalContext context, Type principalType, Nullable`1 identityType, String identityValue, DateTime refDate)
at System.DirectoryServices.AccountManagement.UserPrincipal.FindByIdentity(PrincipalContext context, String identityValue)
at MvcSFIWebSite.Models.User..ctor(String username)

错误消息相当模糊，我无法弄清楚发生了什么，因为它在本地运行良好.

The error message is rather ambiguous and I am unable to figure out what is happening as it works fine locally.

用于部署的计算机上的 IIS 使用自定义帐户而不是 AppPool 身份.是否应该授予此帐户访问 AD 组目录的任何权限?IIS 中是否需要任何其他设置才能使其正常工作?

The IIS on the machine used for deployment uses a custom account instead of the AppPool identity. Should this account be granted any permissions to access the AD group directory? Are any other settings explicitly required in IIS for this to work?

任何建议都会非常有帮助.提前致谢.

Any suggestions would be very helpful. Thanks in advance.

推荐答案

问题是因为 identity_impersonate 在 web.config 中设置为 true，所以传递的用户令牌是辅助令牌，因此无法访问 Active Directory.

The issue was because identity_impersonate was set to true in web.config so the user token which was being passed was a secondary token and hence could not access the Active Directory.

这个答案解决了我的问题.

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