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using Microsoft.WindowsAzure.Storage;
using Microsoft.WindowsAzure.Storage.Table;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Authentication;
using System.Web;
namespace Tango.MachineService.Security
{
public class TokenManager
{
private CloudTable GetTokensTable()
{
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(MachineServiceConfig.STORAGE_ACCOUNT);
var client = storageAccount.CreateCloudTableClient();
var table = client.GetTableReference("Tokens");
table.CreateIfNotExists();
return table;
}
public void AddToken(String token, String identity, DateTime expiration)
{
var table = GetTokensTable();
table.Execute(TableOperation.InsertOrReplace(new TokenEntity()
{
PartitionKey = MachineServiceConfig.REFRESH_TOKENS_TABLE_PARTITION,
RowKey = Guid.NewGuid().ToString(),
AccessToken = token,
Identity = identity,
Expiration = expiration,
}));
}
public void UpdateToken(String oldToken, String newToken, DateTime expiration)
{
var table = GetTokensTable();
var existingToken = table.CreateQuery<TokenEntity>().AsQueryable().Where(x => x.AccessToken == oldToken).ToList().FirstOrDefault();
if (existingToken == null)
{
throw new AuthenticationException("Invalid token.");
}
existingToken.AccessToken = newToken;
existingToken.Expiration = expiration;
table.Execute(TableOperation.InsertOrMerge(existingToken));
}
}
}
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