Class DefaultReplayCache

Namespace

Fdyay.IdentityServer.Services

Assembly

Fdyay.IdentityServer.Core.dll

The replay cache, kept in IDistributedCache so every instance sees what any has seen. Duende's.

public sealed class DefaultReplayCache : IReplayCache

Inheritance

object

DefaultReplayCache

Implements

IReplayCache

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

Duende 8.0.1's DefaultReplayCache, measured: an empty entry under a prefixed key, gone at the expiry given. The default from 0.131.0, in place of InMemoryReplayCache, which kept each instance's to itself — a DPoP proof or a client assertion replayed to a second instance was new there. With the distributed memory cache the server registers, it is still one process's memory; a host running several registers a real IDistributedCache (Redis, SQL Server) and every instance shares it, with no other change.

The key keeps a separator between purpose and handle, where Duende's runs them together, so a purpose that ends where another begins cannot meet it. An expiry already past is not stored: there is nothing left to refuse, and a distributed cache refuses an absolute expiry in the past.

Constructors

DefaultReplayCache(IDistributedCache, TimeProvider)

A replay cache in cache.

public DefaultReplayCache(IDistributedCache cache, TimeProvider time)

Parameters

cache IDistributedCache

The distributed cache the entries are kept in.

time TimeProvider

The clock an entry's remaining lifetime is measured by.

Methods

AddAsync(string, string, DateTimeOffset, CancellationToken)

Records handle as used, until expiration.

public Task AddAsync(string purpose, string handle, DateTimeOffset expiration, CancellationToken cancellationToken = default)

Parameters

purpose string

handle string

expiration DateTimeOffset

cancellationToken CancellationToken

Returns

Task

Remarks

An expiration already past stores nothing.

ExistsAsync(string, string, CancellationToken)

Whether handle has been recorded and has not yet expired.

public Task<bool> ExistsAsync(string purpose, string handle, CancellationToken cancellationToken = default)

Parameters

purpose string

handle string

cancellationToken CancellationToken

Returns

Task<bool>