mcs/class/referencesource/System.Data/System/Data/SqlClient/SqlCredential.cs

   1 //------------------------------------------------------------------------------
   2 // <copyright file="SqlCredential.cs" company="Microsoft">
   3 //     Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 // <owner current="true" primary="true">Microsoft</owner>
   6 // <owner current="true" primary="false">Microsoft</owner>
   7 //------------------------------------------------------------------------------
   8
   9 namespace System.Data.SqlClient
  10 {
  11     using System;
  12     using System.Security;
  13     using System.Data.Common;
  14
  15     // Represent a pair of user id and password which to be used for SQL Authentication
  16     // SqlCredential takes password as SecureString which is better way to store security sensitive information
  17     // This class is immutable
  18     public sealed class SqlCredential
  19     {
  20         string _userId;
  21         SecureString _password;
  22
  23         //
  24         // PUBLIC CONSTRUCTOR
  25         //
  26
  27         // SqlCredential
  28         //  userId: userId
  29         //  password: password
  30         //
  31         public SqlCredential(string userId, SecureString password)
  32         {
  33             if (userId == null)
  34             {
  35                 throw ADP.ArgumentNull("userId");
  36             }
  37
  38             if (userId.Length > TdsEnums.MAXLEN_USERNAME)
  39             {
  40                 throw ADP.InvalidArgumentLength("userId", TdsEnums.MAXLEN_USERNAME);
  41             }
  42
  43             if (password == null)
  44             {
  45                 throw ADP.ArgumentNull("password");
  46             }
  47
  48             if (password.Length > TdsEnums.MAXLEN_PASSWORD)
  49             {
  50                 throw ADP.InvalidArgumentLength("password", TdsEnums.MAXLEN_PASSWORD);
  51             }
  52
  53             if (!password.IsReadOnly())
  54             {
  55                 throw ADP.MustBeReadOnly("password");
  56             }
  57
  58             _userId = userId;
  59             _password = password;
  60         }
  61
  62         //
  63         // PUBLIC PROPERTIES
  64         //
  65         public string UserId
  66         {
  67             get
  68             {
  69                 return _userId;
  70             }
  71         }
  72
  73         public SecureString Password
  74         {
  75             get
  76             {
  77                 return _password;
  78             }
  79         }
  80     }
  81 }   // System.Data.SqlClient namespace
  82
  83