/// <summary>
/// Authenticates the user.
/// </summary>
/// <returns>Task tracking operation.</returns>
public async Task AuthenticateUserAsync()
{
// If user is already authenticated skip authenticating the user.
if (this.tenantBasedTokenMap.Count == 0)
{
this.logger.LogInformation("Logging the user in with Common tenant info");
UserAuthenticationDetails authDetails = await this.AcquireAzureManagementTokenAsync("common", usePrompt : true).ConfigureAwait(false);
this.userIdentifier = authDetails.Username;
this.tenantBasedTokenMap[this.GetTenantOnToken(authDetails)] = authDetails;
}
}
/// <summary>
/// For a given token tries to update the token cache.
/// </summary>
/// <param name="tenantId">Tenant Id to update cache for.</param>
/// <returns>Task tracking operation.</returns>
private async Task TryUpdateTokenCacheForTenantAsync(string tenantId)
{
// Optimization to skip refetching tokens. AAD tokens live for 1 hour.
if (!this.tenantBasedTokenMap.ContainsKey(tenantId))
{
try
{
this.logger.LogInformation("Get token with '{0}' tenant info", tenantId);
UserAuthenticationDetails tenantizedToken = await this.AcquireAzureManagementTokenAsync(tenantId, usePrompt : false, this.userIdentifier).ConfigureAwait(false);
this.tenantBasedTokenMap[this.GetTenantOnToken(tenantizedToken)] = tenantizedToken;
}
catch (Exception ex)
{
this.logger.LogWarning(ex, $"Failed to acquire token for tenant with Id '{tenantId}'");
}
}
}