membership e login walkthrough: creating a web site with membership and user login vs.80).aspx
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Membership e Login
Walkthrough: Creating a Web Site with Membership and User Login
http://msdn2.microsoft.com/en-us/library/879kf95c(VS.80).aspx
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Membership e Login Web Site Administration Tool
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Membership e Login Membership e Login
Objectivos: Criar página principal com link para login
LoginStatus control Abrir página de login – Login.aspx
Login control Validação do utilizador e regresso à página principal
com apresentação de sucesso na validação LoginView control
Apresentação do nome do utilizador LoginName control
Impedir acesso a páginas para utilizadores não autenticados
Criar rules
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Criar Web site IIS local
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Create a membership user Asp.Net Configuration -> Security Criar utilizador:
User name Password …
Método de acesso: From the internet From a local area network
Nota: A informação de membership é guardado por omissão no Microsoft SQL Server Express , no folder App_Data
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Set up access rules Inserir regras de acesso para um dado
directório ( p.e. memberpages) Utilizar Web Site Administration Tool Security -> Create Access Rules
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Controlos de Login Criar página com Login Button
Inserir controlo LoginStatus Login
Este link referencia, por omissão, a página Login.aspx Web.config – Form Authentication
<system.web> <authentication mode="Forms" /></system.web>
Criar página para fazer Login -> Login.aspxInserir controlo Login
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Controlos de Login Control Login:
Namespace: System.Web.UI.WebControls Sintaxe:
[BindableAttribute(false)] public class Login : CompositeControl
3 elementos obrigátorios: user name único para identificar o utilizador password para verificar a identidade do utilizador button para enviar a informação ao servidor
Elementos opcionais: link para relembrar password help link para os utilizadores com problemas ao fazer login Um link para registar novo utilizador acção se o login foi bem sucedido modo de esconder o control se o utilizador já estiver loginado
Propriedade DestinationPageUrl: Destino se bem sucedido Membership provider: default configurado no Web.config Propriedade MembershipProvider permite alterar nome provider OnAuthenticate permite alterar processo/method de autenticação Etc.
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Controlos de Login LoginStatus:
Namespace: System.Web.UI.WebControls Sintaxe:
[BindableAttribute(false)] public class LoginStatus : CompositeControl
Dois estados: logged ou logged out no Web site, determinado pela propriedade IsAuthenticated da página.
Algumas Propriedades: LogininimageUrl e LogoutimageUrl possibilitam alterar display
(texto ou image). LogoutAction (Refresh, Redirect e RedirectToLoginPage) LogoutPageUrl
Loging out “limpa” o “user's authentication status “ e quando usado, as cookies do cliente
Este control possibilita a colocação de um link para a página de login (login.aspx) caso o utilizador não tenha feito login
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Controlos de Login LoginName:
Namespace: System.Web.UI.WebControls Sintaxe:
[BindableAttribute(false)]public class LoginName : WebControl
Mostra o nome do utilizador na propriedade User da class Page
Propriedade FormatString permite alterar texto a ser visualizado
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Controlos de Login Informação para utilizadores logged-in
Inserir um controlo LoginView
Informação com o nome do utilizador que fez login Inserir controlo LoginName
[username]
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Controlos de Login LoginView:
Namespace: System.Web.UI.WebControls Sintaxe:
[BindableAttribute(false)] [ThemeableAttribute(true)] public class LoginView : Control, INamingContainer
Permite associar diferentes displays a diferentes utilizadoresdepois de ser efectuada a autenticação
3 propriedades importantes: AnonymousTemplate: define template a ser
visualizado pelos utilizadadores sem login LoggedInTemplate: template ser visualizado pelos
utilizadores que não pertecem a nenhum Role groups e que tenham efectuado login
RoleGroups: para definir os templates a ser visualizados pelos utilizadores que tenham efectuado login pertecentes a determinados grupos
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Rule access Limitar acesso às páginas no directório memberspages Criar uma página members.aspx nesse
directorio Criar um link para essa página ou escrever
endereço no browser Utilizador será redirecionado para a página
Login.aspx Uma vez validado com sucesso será
redireccionado para a página que tinha pedido (Members.aspx)
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Controlos de Login Registar novo utilizador
Criar página register.aspx Inserir controlo CreateUserWizard Configurar propriedade ContinueDestinationPageUrl para
a página principal
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Controlos de Login ChangePassword:
Namespace: System.Web.UI.WebControls Sintaxe:
[BindableAttribute(false)]public class ChangePassword : CompositeControl,
INamingContainer Propriedade SuccessPageUrl
PasswordRecovery: Namespace: System.Web.UI.WebControls Sintaxe:
[BindableAttribute(false)]
public class PasswordRecovery : CompositeControl
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class Membership ValidateUser da class membership
public void Login_OnClick(object sender, EventArgs args) {
if (Membership.ValidateUser(UsernameTextbox.Text, PasswordTextbox.Text))
FormsAuthentication.RedirectFromLoginPage(UsernameTextbox.Text,
NotPublicCheckBox.Checked); else Msg.Text = "Login failed. Please check your user name and password and try again.";
}
// codigo html inserir password e username <body> <form id="form1" runat="server"> <h3>Login</h3> <asp:Label id="Msg" runat="server" /><br /> Username: <asp:Textbox id="UsernameTextbox" runat="server" /><br /> Password: <asp:Textbox id="PasswordTextbox" runat="server" /><br /> <asp:Button id="LoginButton" Text="Login" OnClick="Login_OnClick" runat="server" /> <asp:CheckBox id="NotPublicCheckBox" runat="server" /> Check here if this is <span >not</span> a public
computer. </form> </body> </html>
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class MembershipProvider Alguns métodos
ValidateUser CreateUser DeleteUser FindUsersByName GetAllUsers GetNumberOfUsersOnline ….