using System; using System.Collections.Generic; using System.DirectoryServices; using System.Linq; using System.Runtime.InteropServices; using System.Security.Principal; using System.Text; using System.Threading.Tasks; namespace ADS.BLL { public class ADHelper { /// ///域名 /// private static string DomainName = ActiveDirectory.GetDomainName; /// /// LDAP 地址 /// private static string LDAPDomain = "DC=" + ActiveDirectory.GetDomainName + ",DC=local"; /// /// LDAP绑定路径 /// private static string ADPath = "LDAP://" + ActiveDirectory.GetDomainName; /// ///登录帐号 /// private static string ADUser = ActiveDirectory.GetUserName; //administrator /// ///登录密码 /// private static string ADPassword = ConstantHelper.PASSWORD; /// ///扮演类实例 /// private static IdentityImpersonation impersonate = new IdentityImpersonation(ADUser, ADPassword, DomainName); /// ///用户登录验证结果 /// public enum LoginResult { /// ///正常登录 /// LOGIN_USER_OK = 0, /// ///用户不存在 /// LOGIN_USER_DOESNT_EXIST, /// ///用户帐号被禁用 /// LOGIN_USER_ACCOUNT_INACTIVE, /// ///用户密码不正确 /// LOGIN_USER_PASSWORD_INCORRECT } /// ///用户属性定义标志 /// public enum ADS_USER_FLAG_ENUM { /// ///登录脚本标志。如果通过 ADSI LDAP 进行读或写操作时，该标志失效。如果通过 ADSI WINNT，该标志为只读。 /// ADS_UF_SCRIPT = 0X0001, /// ///用户帐号禁用标志 /// ADS_UF_ACCOUNTDISABLE = 0X0002, /// ///主文件夹标志 /// ADS_UF_HOMEDIR_REQUIRED = 0X0008, /// ///过期标志 /// ADS_UF_LOCKOUT = 0X0010, /// ///用户密码不是必须的 /// ADS_UF_PASSWD_NOTREQD = 0X0020, /// ///密码不能更改标志 /// ADS_UF_PASSWD_CANT_CHANGE = 0X0040, /// ///使用可逆的加密保存密码 /// ADS_UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED = 0X0080, /// ///本地帐号标志 /// ADS_UF_TEMP_DUPLICATE_ACCOUNT = 0X0100, /// ///普通用户的默认帐号类型 /// ADS_UF_NORMAL_ACCOUNT = 0X0200, /// ///跨域的信任帐号标志 /// ADS_UF_INTERDOMAIN_TRUST_ACCOUNT = 0X0800, /// ///工作站信任帐号标志 /// ADS_UF_WORKSTATION_TRUST_ACCOUNT = 0x1000, /// ///服务器信任帐号标志 /// ADS_UF_SERVER_TRUST_ACCOUNT = 0X2000, /// ///密码永不过期标志 /// ADS_UF_DONT_EXPIRE_PASSWD = 0X10000, /// /// MNS 帐号标志 /// ADS_UF_MNS_LOGON_ACCOUNT = 0X20000, /// ///交互式登录必须使用智能卡 /// ADS_UF_SMARTCARD_REQUIRED = 0X40000, /// ///当设置该标志时，服务帐号（用户或计算机帐号）将通过 Kerberos 委托信任 /// ADS_UF_TRUSTED_FOR_DELEGATION = 0X80000, /// ///当设置该标志时，即使服务帐号是通过 Kerberos 委托信任的，敏感帐号不能被委托 /// ADS_UF_NOT_DELEGATED = 0X100000, /// ///此帐号需要 DES 加密类型 /// ADS_UF_USE_DES_KEY_ONLY = 0X200000, /// ///不要进行 Kerberos 预身份验证 /// ADS_UF_DONT_REQUIRE_PREAUTH = 0X4000000, /// ///用户密码过期标志 /// ADS_UF_PASSWORD_EXPIRED = 0X800000, /// ///用户帐号可委托标志 /// ADS_UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION = 0X1000000 } public ADHelper() { } #region GetDirectoryObject /// <summary> /// 获得DirectoryEntry对象实例,以当前用户登陆AD /// </summary> /// <returns></returns> private static DirectoryEntry GetDirectoryObject() { DirectoryEntry entry = new DirectoryEntry(ADPath, ADUser, ADPassword, AuthenticationTypes.Secure); return entry; } /// <summary> /// 根据指定用户名和密码获得相应DirectoryEntry实体 /// </summary> /// <param name="userName"></param> /// <param name="password"></param> /// <returns></returns> private static DirectoryEntry GetDirectoryObject(string userName, string password) { DirectoryEntry entry = new DirectoryEntry(ADPath, userName, password, AuthenticationTypes.None); return entry; } /// <summary> /// i.e. /CN=Users,DC=creditsights, DC=cyberelves, DC=Com /// </summary> /// <param name="domainReference"></param> /// <returns></returns> private static DirectoryEntry GetDirectoryObject(string domainReference) { DirectoryEntry entry = new DirectoryEntry(ADPath + domainReference, ADUser, ADPassword, AuthenticationTypes.Secure); return entry; } /// <summary> /// 获得以UserName,Password创建的DirectoryEntry /// </summary> /// <param name="domainReference"></param> /// <param name="userName"></param> /// <param name="password"></param> /// <returns></returns> private static DirectoryEntry GetDirectoryObject(string domainReference, string userName, string password) { DirectoryEntry entry = new DirectoryEntry(ADPath + domainReference, userName, password, AuthenticationTypes.Secure); return entry; } #endregion #region GetDirectoryEntry /// <summary> ///根据用户公共名称取得用户的对象 ///用户公共名称 ///如果找到该用户，则返回用户的对象；否则返回 null /// </summary> /// <param name="commonName"></param> /// <returns></returns> public static DirectoryEntry GetDirectoryEntry(string commonName) { DirectoryEntry de = GetDirectoryObject(); DirectorySearcher deSearch = new DirectorySearcher(de); deSearch.Filter = "(&(&(objectCategory=person)(objectClass=user))(cn=" + commonName + "))"; deSearch.SearchScope = SearchScope.Subtree; try { SearchResult result = deSearch.FindOne(); de = new DirectoryEntry(result.Path); } catch { de = null; } return de; } /// <summary> ///根据用户公共名称和密码取得用户的对象。 ///用户公共名称 ///用户密码 ///如果找到该用户，则返回用户的 对象；否则返回null /// </summary> /// <param name="commonName"></param> /// <param name="password"></param> /// <returns></returns> public static DirectoryEntry GetDirectoryEntry(string commonName, string password) { DirectoryEntry de = GetDirectoryObject(commonName, password); DirectorySearcher deSearch = new DirectorySearcher(de); deSearch.Filter = "(&(&(objectCategory=person)(objectClass=user))(cn=" + commonName + "))"; deSearch.SearchScope = SearchScope.Subtree; try { SearchResult result = deSearch.FindOne(); de = new DirectoryEntry(result.Path); return de; } catch { return null; } } /// <summary> ///根据用户帐号称取得用户的对象 ///用户帐号名 ///如果找到该用户，则返回用户的对象；否则返回null /// </summary> /// <param name="sAMAccountName"></param> /// <returns></returns> public static DirectoryEntry GetDirectoryEntryByAccount(string sAMAccountName) { DirectoryEntry de = GetDirectoryObject(); DirectorySearcher deSearch = new DirectorySearcher(de); deSearch.Filter = "(&(&(objectCategory=person)(objectClass=user))(sAMAccountName=" + sAMAccountName + "))"; deSearch.SearchScope = SearchScope.Subtree; try { SearchResult result = deSearch.FindOne(); de = new DirectoryEntry(result.Path); } catch { de = null; } return de; } /// <summary> ///根据用户帐号和密码取得用户的对象 ///用户帐号名 ///用户密码 ///如果找到该用户，则返回用户的 对象；否则返回null /// </summary> /// <param name="sAMAccountName"></param> /// <param name="password"></param> /// <returns></returns> public static DirectoryEntry GetDirectoryEntryByAccount(string sAMAccountName, string password) { DirectoryEntry de = GetDirectoryEntryByAccount(sAMAccountName); if (de != null) { string commonName = de.Properties["cn"][0].ToString(); if (GetDirectoryEntry(commonName, password) != null) return GetDirectoryEntry(commonName, password); else return null; } else { return null; } } /// <summary> ///根据组名取得用户组的对象 ///组名 /// </summary> /// <param name="groupName"></param> /// <returns></returns> public static DirectoryEntry GetDirectoryEntryOfGroup(string groupName) { DirectoryEntry de = GetDirectoryObject(); DirectorySearcher deSearch = new DirectorySearcher(de); deSearch.Filter = "(&(objectClass=group)(cn=" + groupName + "))"; deSearch.SearchScope = SearchScope.Subtree; try { SearchResult result = deSearch.FindOne(); de = new DirectoryEntry(result.Path); return de; } catch { return null; } } #endregion #region GetProperty /// <summary> ///获得指定属性名对应的值 ///属性名称 ///属性值 /// </summary> /// <param name="de"></param> /// <param name="propertyName"></param> /// <returns></returns> public static string GetProperty(DirectoryEntry de, string propertyName) { if (de.Properties.Contains(propertyName)) { return de.Properties[propertyName][0].ToString(); } else { return string.Empty; } } /// <summary> ///获得指定搜索结果中指定属性名对应的值 ///属性名称 ///属性值 /// </summary> /// <param name="searchResult"></param> /// <param name="propertyName"></param> /// <returns></returns> public static string GetProperty(SearchResult searchResult, string propertyName) { if (searchResult.Properties.Contains(propertyName)) { return searchResult.Properties[propertyName][0].ToString(); } else { return string.Empty; } } #endregion /// <summary> ///设置指定的属性值 ///属性名称 ///属性值 /// </summary> /// <param name="de"></param> /// <param name="propertyName"></param> /// <param name="propertyValue"></param> public static void SetProperty(DirectoryEntry de, string propertyName, string propertyValue) { if (propertyValue != string.Empty || propertyValue != "" || propertyValue != null) { if (de.Properties.Contains(propertyName)) { de.Properties[propertyName][0] = propertyValue; } else { de.Properties[propertyName].Add(propertyValue); } } } /// <summary> ///创建新的用户 ///DN 位置。例如：OU=共享平台 或 CN=Users ///公共名称 ///帐号 ///密码 /// </summary> /// <param name="ldapDN"></param> /// <param name="commonName"></param> /// <param name="sAMAccountName"></param> /// <param name="password"></param> /// <returns></returns> public static DirectoryEntry CreateNewUser(string ldapDN, string commonName, string sAMAccountName, string password) { DirectoryEntry entry = GetDirectoryObject(); DirectoryEntry subEntry = entry.Children.Find(ldapDN); DirectoryEntry deUser = subEntry.Children.Add("CN=" + commonName, "user"); deUser.Properties["sAMAccountName"].Value = sAMAccountName; deUser.CommitChanges(); ADHelper.EnableUser(commonName); ADHelper.SetPassword(commonName, password); deUser.Close(); return deUser; } /// <summary> ///创建新的用户。默认创建在Users单元下。 ///公共名称 ///帐号 ///密码 /// </summary> /// <param name="commonName"></param> /// <param name="sAMAccountName"></param> /// <param name="password"></param> /// <returns></returns> public static DirectoryEntry CreateNewUser(string commonName, string sAMAccountName, string password) { return CreateNewUser("CN=Users", commonName, sAMAccountName, password); } /// <summary> ///判断指定公共名称的用户是否存在 ///用户公共名称 ///如果存在,返回true；否则返回false /// </summary> /// <param name="commonName"></param> /// <returns></returns> public static bool IsUserExists(string commonName) { DirectoryEntry de = GetDirectoryObject(); DirectorySearcher deSearch = new DirectorySearcher(de); deSearch.Filter = "(&(&(objectCategory=person)(objectClass=user))(cn=" + commonName + "))"; // LDAP 查询串 SearchResultCollection results = deSearch.FindAll(); if (results.Count == 0) return false; else return true; } /// <summary> ///判断用户帐号是否激活 ///用户帐号属性控制器 ///如果用户帐号已经激活，返回true；否则返回false /// </summary> /// <param name="userAccountControl"></param> /// <returns></returns> public static bool IsAccountActive(int userAccountControl) { int userAccountControl_Disabled = Convert.ToInt32(ADS_USER_FLAG_ENUM.ADS_UF_ACCOUNTDISABLE); int flagExists = userAccountControl & userAccountControl_Disabled; if (flagExists > 0) return false; else return true; } /// <summary> ///判断用户与密码是否足够以满足身份验证进而登录 ///用户公共名称 ///密码 ///如能可正常登录，则返回 true；否则返回 false /// </summary> /// <param name="commonName"></param> /// <param name="password"></param> /// <returns></returns> public static LoginResult Login(string commonName, string password) { DirectoryEntry de = GetDirectoryEntry(commonName); if (de != null) { // 必须在判断用户密码正确前，对帐号激活属性进行判断；否则将出现异常。 int userAccountControl = Convert.ToInt32(de.Properties["userAccountControl"][0]); de.Close(); if (!IsAccountActive(userAccountControl)) return LoginResult.LOGIN_USER_ACCOUNT_INACTIVE; if (GetDirectoryEntry(commonName, password) != null) return LoginResult.LOGIN_USER_OK; else return LoginResult.LOGIN_USER_PASSWORD_INCORRECT; } else { return LoginResult.LOGIN_USER_DOESNT_EXIST; } } /// <summary> ///判断用户帐号与密码是否足够以满足身份验证进而登录 ///用户帐号 ///密码 ///如能可正常登录，则返回true；否则返回false /// </summary> /// <param name="sAMAccountName"></param> /// <param name="password"></param> /// <returns></returns> public static LoginResult LoginByAccount(string sAMAccountName, string password) { DirectoryEntry de = GetDirectoryEntryByAccount(sAMAccountName); if (de != null) { // 必须在判断用户密码正确前，对帐号激活属性进行判断；否则将出现异常。 int userAccountControl = Convert.ToInt32(de.Properties["userAccountControl"][0]); de.Close(); if (!IsAccountActive(userAccountControl)) return LoginResult.LOGIN_USER_ACCOUNT_INACTIVE; if (GetDirectoryEntryByAccount(sAMAccountName, password) != null) return LoginResult.LOGIN_USER_OK; else return LoginResult.LOGIN_USER_PASSWORD_INCORRECT; } else { return LoginResult.LOGIN_USER_DOESNT_EXIST; } } /// <summary> ///设置用户密码，管理员可以通过它来修改指定用户的密码。 ///用户公共名称 ///用户新密码 /// </summary> /// <param name="commonName"></param> /// <param name="newPassword"></param> public static void SetPassword(string commonName, string newPassword) { DirectoryEntry de = GetDirectoryEntry(commonName); // 模拟超级管理员，以达到有权限修改用户密码 impersonate.BeginImpersonate(); de.Invoke("SetPassword", new object[] { newPassword }); impersonate.StopImpersonate(); de.Close(); } /// <summary> ///设置帐号密码，管理员可以通过它来修改指定帐号的密码。 ///用户帐号 ///用户新密码 /// </summary> /// <param name="sAMAccountName"></param> /// <param name="newPassword"></param> public static void SetPasswordByAccount(string sAMAccountName, string newPassword) { DirectoryEntry de = GetDirectoryEntryByAccount(sAMAccountName); // 模拟超级管理员，以达到有权限修改用户密码 IdentityImpersonation impersonate = new IdentityImpersonation(ADUser, ADPassword, DomainName); impersonate.BeginImpersonate(); de.Invoke("SetPassword", new object[] { newPassword }); impersonate.StopImpersonate(); de.Close(); } /// <summary> ///修改用户密码 ///用户公共名称 ///旧密码 ///新密码 /// </summary> /// <param name="commonName"></param> /// <param name="oldPassword"></param> /// <param name="newPassword"></param> public static void ChangeUserPassword(string commonName, string oldPassword, string newPassword) { // to-do: 需要解决密码策略问题 DirectoryEntry oUser = GetDirectoryEntry(commonName); oUser.Invoke("ChangePassword", new Object[] { oldPassword, newPassword }); oUser.Close(); } /// <summary> ///启用指定公共名称的用户 /// </summary> /// <param name="commonName"></param> public static void EnableUser(string commonName) { EnableUser(GetDirectoryEntry(commonName)); } /// <summary> /// 启用指定的用户 /// </summary> /// <param name="de"></param> public static void EnableUser(DirectoryEntry de) { impersonate.BeginImpersonate(); de.Properties["userAccountControl"][0] = ADHelper.ADS_USER_FLAG_ENUM.ADS_UF_NORMAL_ACCOUNT | ADHelper.ADS_USER_FLAG_ENUM.ADS_UF_DONT_EXPIRE_PASSWD; de.CommitChanges(); impersonate.StopImpersonate(); de.Close(); } /// <summary> /// 禁用指定公共名称的用户 /// </summary> /// <param name="commonName"></param> public static void DisableUser(string commonName) { DisableUser(GetDirectoryEntry(commonName)); } /// <summary> /// 禁用指定的用户 /// </summary> /// <param name="de"></param> public static void DisableUser(DirectoryEntry de) { impersonate.BeginImpersonate(); de.Properties["userAccountControl"][0] = ADHelper.ADS_USER_FLAG_ENUM.ADS_UF_NORMAL_ACCOUNT | ADHelper.ADS_USER_FLAG_ENUM.ADS_UF_DONT_EXPIRE_PASSWD | ADHelper.ADS_USER_FLAG_ENUM.ADS_UF_ACCOUNTDISABLE; de.CommitChanges(); impersonate.StopImpersonate(); de.Close(); } /// <summary> ///将指定的用户添加到指定的组中。默认为Users下的组和用户。 ///用户公共名称 ///组名 /// </summary> /// <param name="userCommonName"></param> /// <param name="groupName"></param> public static void AddUserToGroup(string userCommonName, string groupName) { DirectoryEntry oGroup = GetDirectoryEntryOfGroup(groupName); DirectoryEntry oUser = GetDirectoryEntry(userCommonName); impersonate.BeginImpersonate(); oGroup.Properties["member"].Add(oUser.Properties["distinguishedName"].Value); oGroup.CommitChanges(); impersonate.StopImpersonate(); oGroup.Close(); oUser.Close(); } /// <summary> ///将用户从指定组中移除。默认为Users下的组和用户。 ///用户公共名称 /// </summary> /// <param name="userCommonName"></param> /// <param name="groupName"></param> public static void RemoveUserFromGroup(string userCommonName, string groupName) { DirectoryEntry oGroup = GetDirectoryEntryOfGroup(groupName); DirectoryEntry oUser = GetDirectoryEntry(userCommonName); impersonate.BeginImpersonate(); oGroup.Properties["member"].Remove(oUser.Properties["distinguishedName"].Value); oGroup.CommitChanges(); impersonate.StopImpersonate(); oGroup.Close(); oUser.Close(); } } /// <summary> /// 用户模拟角色类。实现在程序段内进行用户角色模拟。 /// </summary> public class IdentityImpersonation { [DllImport("advapi32.dll", SetLastError = true)] public static extern bool LogonUser(String lpszUsername, String lpszDomain, String lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken); [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)] public extern static bool DuplicateToken(IntPtr ExistingTokenHandle, int SECURITY_IMPERSONATION_LEVEL, ref IntPtr DuplicateTokenHandle); [DllImport("kernel32.dll", CharSet = CharSet.Auto)] public extern static bool CloseHandle(IntPtr handle); // 要模拟的用户的用户名、密码、域(机器名) private String _sImperUsername; private String _sImperPassword; private String _sImperDomain; // 记录模拟上下文 private WindowsImpersonationContext _imperContext; private IntPtr _adminToken; private IntPtr _dupeToken; // 是否已停止模拟 private Boolean _bClosed; /// <summary> ///构造函数 ///所要模拟的用户的用户名 ///所要模拟的用户的密码 ///所要模拟的用户所在的域 /// </summary> /// <param name="impersonationUsername"></param> /// <param name="impersonationPassword"></param> /// <param name="impersonationDomain"></param> public IdentityImpersonation(String impersonationUsername, String impersonationPassword, String impersonationDomain) { _sImperUsername = impersonationUsername; _sImperPassword = impersonationPassword; _sImperDomain = impersonationDomain; _adminToken = IntPtr.Zero; _dupeToken = IntPtr.Zero; _bClosed = true; } /// <summary> /// 析构函数 /// </summary> ~IdentityImpersonation() { if (!_bClosed) { StopImpersonate(); } } /// <summary> /// 开始身份角色模拟。 /// </summary> /// <returns></returns> public Boolean BeginImpersonate() { Boolean bLogined = LogonUser(_sImperUsername, _sImperDomain, _sImperPassword, 2, 0, ref _adminToken); if (!bLogined) { return false; } Boolean bDuped = DuplicateToken(_adminToken, 2, ref _dupeToken); if (!bDuped) { return false; } WindowsIdentity fakeId = new WindowsIdentity(_dupeToken); _imperContext = fakeId.Impersonate(); _bClosed = false; return true; } /// <summary> /// 停止身分角色模拟。 /// </summary> public void StopImpersonate() { _imperContext.Undo(); CloseHandle(_dupeToken); CloseHandle(_adminToken); _bClosed = true; } } }