public async Task <IActionResult> GetServiceConfigurationAsync([FromBody] ExecutionRequestApiModel execRequestApiModel)
{
// Validate the execution request API model...
var errors = execRequestApiModel.ValidateApiModel().ToList();
// If we ran into any validation errors, respond with [400 Bad Request] + detailed error description...
if (errors.Any())
{
return(BadRequest($"[{errors.Count}] errors occurred while attempting to process your request: {string.Join(' ', errors)}"));
}
// Get any service context(s) from the execution service provider...
var execRequest = execRequestApiModel.ToCoreModel();
var execServiceConfig = await execServiceProvider.GetServiceConfigurationAsync(execRequest);
if (execServiceConfig == null)
{
// If there are no available services, respond with [204 No Content]...
return(NoContent());
}
else
{
// If there are available services, respond with [200 OK] + service context(s) for execution...
return(Ok(execServiceConfig));
}
}
private async Task <DirectExecutionRequestApiModel> CreateDirectExecutionRequestAsync(IExecutionRequestContext erContext)
{
// Convert the API request context to a core execution request...
var execRequest = ToExecutionRequestAsync(erContext);
// Then, convert the core execution request into a direct execution token...
var directExecRequest = new DirectExecutionRequestApiModel
{
ExecutionId = execRequest.ExecutionId,
ExecutionModelName = execRequest.ExecutionModelName,
ExecutionProfileName = execRequest.ExecutionProfileName,
ExecutionSettings = execRequest.ExtensionSettings,
ExtensionId = execRequest.ExtensionId,
ExtensionVersionId = execRequest.ExtensionVersionId,
GetExecutionStatusUrl = execRequest.GetExecutionStatusUrl,
ObjectProviderName = execRequest.ObjectProviderName,
ExecutorProperties = execRequest.ExecutorProperties,
Services = await execServiceProvider.GetServiceConfigurationAsync(execRequest)
};
// Based on the selected execution profile, set the expiration date/time (how long the client can use the extension directly for)
// and digitally sign the execution request using the hub's private key. In this model, we assume that the target execution has the hub's
// public key and can us it to verify the authenticity of the token and all the information contained therein.
// For more information, see /doc/architecture/direct-execution.md.
directExecRequest.ExpirationDateTimeUtc = DateTime.UtcNow.Add(erContext.ExecutionProfile.DirectExecutionTokenDuration.Value);
directExecRequest.Signature = await directExecRequestSigner.GenerateSignatureAsync(execRequest.SignatureRsaKeyXml, directExecRequest);
// Update the execution to indicate that a direct access token is being provided...
erContext.Execution.ExecutionTimeoutDateTimeUtc = directExecRequest.ExpirationDateTimeUtc;
erContext.Execution.Status = ExecutionStatus.DirectExecutionTokenProvided;
erContext.Execution.LastUpdatedDateTimeUtc = DateTime.UtcNow;
// Persist the execution and return the direct execution token...
await UpdateExecutionAsync(erContext.Execution);
return(directExecRequest);
}
private async Task <HttpExecutionRequest> ToHttpExecutionRequestAsync(ExecutionRequest execRequest) => new HttpExecutionRequest
{
CreatedDateTimeUtc = execRequest.CreatedDateTimeUtc,
ExecutionId = execRequest.ExecutionId,
Executor = execRequest.Executor,
ExtensionId = execRequest.ExtensionId,
ExtensionVersionId = execRequest.ExtensionVersionId,
GetExecutionStatusUrl = execRequest.GetExecutionStatusUrl,
LastUpdatedDateTimeUtc = execRequest.LastUpdatedDateTimeUtc,
Priority = execRequest.Priority,
StatusUpdateKey = execRequest.StatusUpdateKey,
UpdateExecutionStatusUrl = execRequest.UpdateExecutionStatusUrl,
ExpirationDateTimeUtc = execRequest.ExecutionTimeoutDateTimeUtc,
Services = await execServiceProvider.GetServiceConfigurationAsync(execRequest),
InputObjects = await CreateInputObjectAccessorDictionaryAsync(execRequest),
OutputObjects = await CreateOutputObjectAccessorDictionaryAsync(execRequest),
ExecutionProfileName = execRequest.ExecutionProfileName,
RequestParameters = execRequest.ExecutionParameters,
ExecutorProperties = execRequest.ExecutorProperties
};
