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//-----------------------------------------------------------------------
// <copyright file="DataRoleProvider.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace WebFormsRelyingParty.Code {
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
public class DataRoleProvider : RoleProvider {
public override string ApplicationName {
get { throw new NotImplementedException(); }
set { throw new NotImplementedException(); }
}
public override void AddUsersToRoles(string[] usernames, string[] roleNames) {
var users = from token in Global.DataContext.AuthenticationToken
where usernames.Contains(token.ClaimedIdentifier)
select token.User;
var roles = from role in Global.DataContext.Role
where roleNames.Contains(role.Name, StringComparer.OrdinalIgnoreCase)
select role;
foreach (User user in users) {
foreach (Role role in roles) {
user.Roles.Add(role);
}
}
}
public override void RemoveUsersFromRoles(string[] usernames, string[] roleNames) {
var users = from token in Global.DataContext.AuthenticationToken
where usernames.Contains(token.ClaimedIdentifier)
select token.User;
var roles = from role in Global.DataContext.Role
where roleNames.Contains(role.Name, StringComparer.OrdinalIgnoreCase)
select role;
foreach (User user in users) {
foreach (Role role in roles) {
user.Roles.Remove(role);
}
}
}
public override void CreateRole(string roleName) {
Global.DataContext.AddToRole(new Role { Name = roleName });
}
/// <summary>
/// Removes a role from the data source for the configured applicationName.
/// </summary>
/// <param name="roleName">The name of the role to delete.</param>
/// <param name="throwOnPopulatedRole">If true, throw an exception if <paramref name="roleName"/> has one or more members and do not delete <paramref name="roleName"/>.</param>
/// <returns>
/// true if the role was successfully deleted; otherwise, false.
/// </returns>
public override bool DeleteRole(string roleName, bool throwOnPopulatedRole) {
Role role = Global.DataContext.Role.SingleOrDefault(r => r.Name == roleName);
if (role == null) {
return false;
}
if (throwOnPopulatedRole && role.Users.Count > 0) {
throw new InvalidOperationException();
}
Global.DataContext.DeleteObject(roleName);
return true;
}
/// <summary>
/// Gets an array of user names in a role where the user name contains the specified user name to match.
/// </summary>
/// <param name="roleName">The role to search in.</param>
/// <param name="usernameToMatch">The user name to search for.</param>
/// <returns>
/// A string array containing the names of all the users where the user name matches <paramref name="usernameToMatch"/> and the user is a member of the specified role.
/// </returns>
public override string[] FindUsersInRole(string roleName, string usernameToMatch) {
return (from role in Global.DataContext.Role
where role.Name == roleName
from user in role.Users
from authTokens in user.AuthenticationTokens
where authTokens.ClaimedIdentifier == usernameToMatch
select authTokens.ClaimedIdentifier).ToArray();
}
public override string[] GetAllRoles() {
return Global.DataContext.Role.Select(role => role.Name).ToArray();
}
public override string[] GetRolesForUser(string username) {
return (from authToken in Global.DataContext.AuthenticationToken
where authToken.ClaimedIdentifier == username
from role in authToken.User.Roles
select role.Name).ToArray();
}
public override string[] GetUsersInRole(string roleName) {
return (from role in Global.DataContext.Role
where string.Equals(role.Name, roleName, StringComparison.OrdinalIgnoreCase)
from user in role.Users
from token in user.AuthenticationTokens
select token.ClaimedIdentifier).ToArray();
}
public override bool IsUserInRole(string username, string roleName) {
Role role = Global.DataContext.Role.SingleOrDefault(r => string.Equals(r.Name, roleName, StringComparison.OrdinalIgnoreCase));
if (role != null) {
return role.Users.Any(user => user.AuthenticationTokens.Any(token => token.ClaimedIdentifier == username));
}
return false;
}
public override bool RoleExists(string roleName) {
return Global.DataContext.Role.Any(role => string.Equals(role.Name, roleName, StringComparison.OrdinalIgnoreCase));
}
}
}
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