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Writing custom membership provider asp net need help writing philosophy paper
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Jit can be reached at firstname.lastname@example.org. The Login control provides two textboxes for a User Email and a User Password, along with a submit button. This "provider" component exposes a standard interface to the service logic, but allows developers to implement the provider component on top of a repository of their choice. These keys are provided to the sample provider using the validationKey configuration attribute for keyed-hashing, and the decryptionKey configuration attribute for encryption and decryption of passwords. Once the provider is loaded, the runtime calls Initialize and passes the settings as name-value pairs in an instance of the NameValueCollection class. The ASP.NET Membership Service specifies three formats for storing a password—in clear text, encrypted, or hashed, as defined in the PasswordFormat enumeration. With that said, should you listen to music while doing homework let us take a look at the provider layer of the stack. Alternatively, you may want to use a directory service for the same purpose, or maybe just the file system. The MembershipProvider, in turn, derives from the ProviderBase class. Since the introduction of ASP.NET in Framework 1.0 the Page.User/CurrentSession.User/IPrincipal/IIdentity model is unchanged. You can then adapt the concepts covered in this article to use any data source (such as Oracle database, XML files, or even plain text files) you want for your membership provider. While I have demonstrated building a custom provider for the Membership system, other building block services such as Role Management and Personalization also follow the same design pattern, allowing custom providers to be constructed for each of these services. You can either right-click, or have the cursor on the name and press Control + . You may also optionally specify the topContainer and userContainer settings for the sample provider. The ASP.NET 2.0 Membership service builds on Forms Authentication by specifying a standard interface, to perform both the above mentioned tasks and several others. You have a nice Video Tutorial from Chris Pels (dated 2007 but still mostly valid) and code for this as well, though Video Tutorial is in VB, but let's you understand the steps... The role of the provider is to act as a bridge between the membership APIs and the membership data, so that developers need not be concerned with the details of data storage and retrieval. These classes, in turn, use a Membership Provider component to perform most of their interaction with the membership repository. Jit Ghosh is a .NET Architect Evangelist working for Microsoft. Those "outdated" reference remain valid guidance. The default URI is set to localhost, and in case you do not specify a user name and password, the provider tries to bind to the ADAM instance without specifying credentials. The UpdateUser method accepts an instance of MembershipUser, locates the appropriate record in the repository, and updates the pertinent attributes, other than password or password related ones. This partitioning by application name may also require some thinking in terms of unique identifiers for user records, depending on the nature of the repository you are using for your custom provider. There are a few threads here at so about this matter but most of them are outdated and the reference links in them are even more outdated. The sample code listing below shows you how to hash or encrypt a password and convert an encoded password back to its readable format. The listing below shows a sample implementations of ResetPassword. The GetAllUsers, FindUsersByName and FindUsersByEmail methods all return multiple users, contained in an instance of the MembershipUser Collection class. You should use the pageIndex and the pageSize parameters to return user records in a paged fashion.
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In the case of Membership, college essay help services the Membership and MembershipUser classes described earlier constitute the service logic for the Membership service. Once the user has been authenticated, the Context.User.Identity.IsAuthenticated property is set to true. The sample provider with this article uses a SHA1 hash algorithm to create a keyed-hash of the password, and a TripleDES symmetric encryption algorithm to provide password encryption. This being a sample, I have chosen to specify these settings in clear text; for a production-grade provider based on ADAM, you should also secure the password specified here with some sort of encryption. If you investigate these provider implementations, you will notice that both of these classes derive from an abstract base class named MembershipProvider, also found in System.Web.Security. A membership provider is the glue between the Login control and the membership database. To allow creation of users through your providers, you must implement the CreateUser method. There are several parts to the Membership service architecture, as shown in Figure 1. You can obtain ADAM from http://www.microsoft.com/windowsserver2003/adam/default.mspx. Login control if validation is unsuccessful. However, if the provider supplied with ASP.NET 2.0 does not meet your needs, you can write your own custom provider. For more details on these tools, please refer to the MSDN documentation for the provider. At the top level are the various Login controls themselves. It can do anything you want. //The code below is just one example. Once credentials have been successfully validated through this login page, you can use Forms Authentication APIs to create and associate a token with the user session, such that subsequent requests can be authenticated automatically, based on the presence of the token. Start by creating a few new users and have fun!! To provide a complete implementation, you will need to provide overrides for all of the methods and properties of the MembershipProvider class.
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The Login controls ship with at least two Microsoft-supplied providers: Active Directory and SQL Server. All of the ASP.NET 2.0 "Building Block" services, including Membership, implement what is commonly known as a "Provider Model" design pattern. You can use the GeneratePassword method on the Membership class, to generate this new password. You don't need to have any code in the Login.aspx.cs code page. System.Web.UI.WebControls:http://whidbey.msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/T_System_Web_UI_WebControls_Login.asp.
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