private void OverrideOperatorUrls(ProviderMetadata metadata)
{
if (OperatorUrls == null)
{
return;
}
OperatorUrls.OverrideUrls(metadata);
}
/// <summary>
/// <inheritdoc/>
/// </summary>
/// <param name="url">url</param>
/// <param name="forceCacheBypass"></param>
/// <returns></returns>
public async Task <ProviderMetadata> RetrieveProviderMetada(string url, bool forceCacheBypass = false)
{
if (url == null)
{
Log.Warning("Provider metadata was defaulted as no url found");
return(ProviderMetadata.Default);
}
// Get value from cache, if it is expired we don't want to remove it because we will use it as a fallback if the call to the provider metadata endpoint fails
// If it is expired and the call to the provider metadata endpoint succeeds then expired value will be overwritten in the cache anyway
ProviderMetadata cached = null;
if (!forceCacheBypass)
{
cached = await GetCachedValueAsync <ProviderMetadata>(url, false);
if (cached != null && !cached.HasExpired)
{
return(cached);
}
}
ProviderMetadata metadata = null;
try
{
var response = await _client.GetAsync(url, null);
if ((int)response.StatusCode < 400)
{
metadata = JsonConvert.DeserializeObject <ProviderMetadata>(response.Content);
await AddCachedValueAsync(url, metadata).ConfigureAwait(false);
}
else if (cached != null)
{
metadata = cached;
}
}
catch (Exception e)
{
// If an error occurred while fetching the metadata we don't want to cause the discovery to fail completely as the
// info in the discovery response should be enough to make successful calls in the event that a provider supplies
// malformed metadata
if (cached != null)
{
metadata = cached;
}
Log.Warning(() => cached != null ? $"Falling back to expired cached provider metadata, url={url}, reason={e.Message}" : $"Falling back to default provider metadata, url={url}, reason={e.Message}");
}
return(metadata ?? ProviderMetadata.Default);
}
/// <summary>
/// Replaces URLs from the discovery response with URLs from the provider metadata.
/// This allows providers to use temporary urls while the main url is down for maintenance.
/// </summary>
/// <param name="metadata">Metadata to get overriding urls from</param>
internal void OverrideUrls(ProviderMetadata metadata)
{
if (metadata == null)
{
return;
}
AuthorizationUrl = metadata.AuthorizationEndpoint ?? AuthorizationUrl;
RequestTokenUrl = metadata.TokenEndpoint ?? RequestTokenUrl;
UserInfoUrl = metadata.UserInfoEndpoint ?? UserInfoUrl;
PremiumInfoUrl = metadata.PremiumInfoEndpoint ?? PremiumInfoUrl;
JWKSUrl = metadata.JwksUri ?? JWKSUrl;
RefreshTokenUrl = metadata.RefreshEndpoint ?? RefreshTokenUrl;
RevokeTokenUrl = metadata.RevokeEndpoint ?? RevokeTokenUrl;
}
/// <summary>
/// <inheritdoc/>
/// </summary>
/// <param name="url">url</param>
/// <param name="forceCacheBypass"></param>
/// <returns></returns>
public async Task <ProviderMetadata> RetrieveProviderMetada(string url, bool forceCacheBypass = false)
{
if (url == null)
{
Log.Warning("Provider metadata was defaulted as no url found");
return(ProviderMetadata.Default);
}
ProviderMetadata metadata = null;
var response = await _client.GetAsync(url, null);
if ((int)response.StatusCode < 400)
{
metadata = JsonConvert.DeserializeObject <ProviderMetadata>(response.Content);
}
return(metadata ?? ProviderMetadata.Default);
}
