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RoleStore.cs
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RoleStore.cs
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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Security.Claims;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Data.Entity;
namespace Microsoft.AspNet.Identity.EntityFramework
{
public class RoleStore<TRole> : RoleStore<TRole, DbContext, string>
where TRole : IdentityRole
{
public RoleStore(DbContext context) : base(context) { }
}
public class RoleStore<TRole, TContext> : RoleStore<TRole, TContext, string>
where TRole : IdentityRole
where TContext : DbContext
{
public RoleStore(TContext context) : base(context) { }
}
public class RoleStore<TRole, TContext, TKey> :
IQueryableRoleStore<TRole>,
IRoleClaimStore<TRole>
where TRole : IdentityRole<TKey>
where TKey : IEquatable<TKey>
where TContext : DbContext
{
public RoleStore(TContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
Context = context;
}
private bool _disposed;
public TContext Context { get; private set; }
/// <summary>
/// If true will call SaveChanges after CreateAsync/UpdateAsync/DeleteAsync
/// </summary>
public bool AutoSaveChanges { get; set; } = true;
private async Task SaveChanges(CancellationToken cancellationToken)
{
if (AutoSaveChanges)
{
await Context.SaveChangesAsync(cancellationToken);
}
}
public async virtual Task CreateAsync(TRole role, CancellationToken cancellationToken = default(CancellationToken))
{
cancellationToken.ThrowIfCancellationRequested();
ThrowIfDisposed();
if (role == null)
{
throw new ArgumentNullException("role");
}
await Context.AddAsync(role, cancellationToken);
await SaveChanges(cancellationToken);
}
public async virtual Task UpdateAsync(TRole role, CancellationToken cancellationToken = default(CancellationToken))
{
cancellationToken.ThrowIfCancellationRequested();
ThrowIfDisposed();
if (role == null)
{
throw new ArgumentNullException("role");
}
Context.Update(role);
await SaveChanges(cancellationToken);
}
public async virtual Task DeleteAsync(TRole role, CancellationToken cancellationToken = default(CancellationToken))
{
cancellationToken.ThrowIfCancellationRequested();
ThrowIfDisposed();
if (role == null)
{
throw new ArgumentNullException("role");
}
Context.Remove(role);
await SaveChanges(cancellationToken);
}
public Task<string> GetRoleIdAsync(TRole role, CancellationToken cancellationToken = default(CancellationToken))
{
cancellationToken.ThrowIfCancellationRequested();
ThrowIfDisposed();
if (role == null)
{
throw new ArgumentNullException("role");
}
return Task.FromResult(ConvertIdToString(role.Id));
}
public Task<string> GetRoleNameAsync(TRole role, CancellationToken cancellationToken = default(CancellationToken))
{
cancellationToken.ThrowIfCancellationRequested();
ThrowIfDisposed();
if (role == null)
{
throw new ArgumentNullException("role");
}
return Task.FromResult(role.Name);
}
public Task SetRoleNameAsync(TRole role, string roleName, CancellationToken cancellationToken = default(CancellationToken))
{
cancellationToken.ThrowIfCancellationRequested();
ThrowIfDisposed();
if (role == null)
{
throw new ArgumentNullException("role");
}
role.Name = roleName;
return Task.FromResult(0);
}
public virtual TKey ConvertIdFromString(string id)
{
if (id == null)
{
return default(TKey);
}
return (TKey)Convert.ChangeType(id, typeof(TKey));
}
public virtual string ConvertIdToString(TKey id)
{
if (id.Equals(default(TKey)))
{
return null;
}
return id.ToString();
}
/// <summary>
/// Find a role by id
/// </summary>
/// <param name="id"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public virtual Task<TRole> FindByIdAsync(string id, CancellationToken cancellationToken = default(CancellationToken))
{
cancellationToken.ThrowIfCancellationRequested();
ThrowIfDisposed();
var roleId = ConvertIdFromString(id);
return Roles.FirstOrDefaultAsync(u => u.Id.Equals(roleId), cancellationToken);
}
/// <summary>
/// Find a role by name
/// </summary>
/// <param name="name"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public virtual Task<TRole> FindByNameAsync(string name, CancellationToken cancellationToken = default(CancellationToken))
{
cancellationToken.ThrowIfCancellationRequested();
ThrowIfDisposed();
return Roles.FirstOrDefaultAsync(u => u.Name.ToUpper() == name.ToUpper(), cancellationToken);
}
private void ThrowIfDisposed()
{
if (_disposed)
{
throw new ObjectDisposedException(GetType().Name);
}
}
/// <summary>
/// Dispose the store
/// </summary>
public void Dispose()
{
_disposed = true;
}
public async Task<IList<Claim>> GetClaimsAsync(TRole role, CancellationToken cancellationToken = default(CancellationToken))
{
ThrowIfDisposed();
if (role == null)
{
throw new ArgumentNullException("role");
}
return await RoleClaims.Where(rc => rc.RoleId.Equals(role.Id)).Select(c => new Claim(c.ClaimType, c.ClaimValue)).ToListAsync();
}
public Task AddClaimAsync(TRole role, Claim claim, CancellationToken cancellationToken = default(CancellationToken))
{
ThrowIfDisposed();
if (role == null)
{
throw new ArgumentNullException("role");
}
if (claim == null)
{
throw new ArgumentNullException("claim");
}
return RoleClaims.AddAsync(new IdentityRoleClaim<TKey> { RoleId = role.Id, ClaimType = claim.Type, ClaimValue = claim.Value });
}
public async Task RemoveClaimAsync(TRole role, Claim claim, CancellationToken cancellationToken = default(CancellationToken))
{
ThrowIfDisposed();
if (role == null)
{
throw new ArgumentNullException("role");
}
if (claim == null)
{
throw new ArgumentNullException("claim");
}
var claims = await RoleClaims.Where(uc => uc.ClaimValue == claim.Value && uc.ClaimType == claim.Type).ToListAsync();
foreach (var c in claims)
{
RoleClaims.Remove(c);
}
}
public IQueryable<TRole> Roles
{
get { return Context.Set<TRole>(); }
}
private DbSet<IdentityRoleClaim<TKey>> RoleClaims { get { return Context.Set<IdentityRoleClaim<TKey>>(); } }
}
}