Enable PHP FFE evaluation system tests #7003
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,209 @@ | ||
| <?php | ||
|
|
||
| function dd_ffe_json_response($statusCode, array $payload) | ||
| { | ||
| header('Content-Type: application/json'); | ||
| http_response_code($statusCode); | ||
| echo json_encode($payload, JSON_UNESCAPED_SLASHES); | ||
| } | ||
|
|
||
| function dd_ffe_error_response($statusCode, $errorCode, $errorMessage) | ||
| { | ||
| dd_ffe_json_response($statusCode, array( | ||
| 'value' => null, | ||
| 'reason' => 'ERROR', | ||
| 'variant' => null, | ||
| 'errorCode' => $errorCode, | ||
| 'errorMessage' => $errorMessage, | ||
| 'providerState' => array('ready' => false), | ||
| )); | ||
| } | ||
|
|
||
| function dd_ffe_read_payload() | ||
| { | ||
| $rawBody = file_get_contents('php://input'); | ||
| if ($rawBody === false || $rawBody === '') { | ||
| return array(); | ||
| } | ||
|
|
||
| $payload = json_decode($rawBody, true); | ||
| if (json_last_error() !== JSON_ERROR_NONE || !is_array($payload)) { | ||
| dd_ffe_error_response(400, 'INVALID_REQUEST', 'Expected a JSON object request body.'); | ||
| exit; | ||
| } | ||
|
|
||
| return $payload; | ||
| } | ||
|
|
||
| function dd_ffe_normalized_variation_type($variationType) | ||
| { | ||
| return strtoupper(str_replace('-', '_', (string) $variationType)); | ||
| } | ||
|
|
||
| function dd_ffe_normalize_default_value($defaultValue, $variationType) | ||
| { | ||
| switch (dd_ffe_normalized_variation_type($variationType)) { | ||
| case 'BOOLEAN': | ||
| return is_bool($defaultValue) ? $defaultValue : (bool) $defaultValue; | ||
| case 'STRING': | ||
| return is_string($defaultValue) ? $defaultValue : (string) $defaultValue; | ||
| case 'INTEGER': | ||
| return is_int($defaultValue) ? $defaultValue : (int) $defaultValue; | ||
| case 'NUMERIC': | ||
| case 'FLOAT': | ||
| case 'DOUBLE': | ||
| return is_int($defaultValue) || is_float($defaultValue) ? $defaultValue : (float) $defaultValue; | ||
| case 'JSON': | ||
| case 'OBJECT': | ||
| return is_array($defaultValue) ? $defaultValue : array(); | ||
| default: | ||
| return $defaultValue; | ||
| } | ||
| } | ||
|
|
||
| function dd_ffe_scalar_attributes(array $attributes) | ||
| { | ||
| $normalized = array(); | ||
| foreach ($attributes as $key => $value) { | ||
| if (is_bool($value) || is_int($value) || is_float($value) || is_string($value)) { | ||
| $normalized[(string) $key] = $value; | ||
| } | ||
| } | ||
|
|
||
| return $normalized; | ||
| } | ||
|
|
||
| function dd_ffe_evaluate_with_client($flagKey, $variationType, $defaultValue, $targetingKey, array $attributes) | ||
| { | ||
| if (!class_exists('\\DDTrace\\FeatureFlags\\Client')) { | ||
| return null; | ||
| } | ||
|
|
||
| if (method_exists('\\DDTrace\\FeatureFlags\\Client', 'create')) { | ||
| $client = \DDTrace\FeatureFlags\Client::create(); | ||
| } else { | ||
| $client = new \DDTrace\FeatureFlags\Client(); | ||
| } | ||
|
|
||
| $context = array( | ||
| 'targetingKey' => $targetingKey, | ||
| 'attributes' => $attributes, | ||
| ); | ||
|
|
||
| switch (dd_ffe_normalized_variation_type($variationType)) { | ||
| case 'BOOLEAN': | ||
| return $client->getBooleanDetails($flagKey, $defaultValue, $context); | ||
| case 'STRING': | ||
| return $client->getStringDetails($flagKey, $defaultValue, $context); | ||
| case 'INTEGER': | ||
| return $client->getIntegerDetails($flagKey, $defaultValue, $context); | ||
| case 'NUMERIC': | ||
| case 'FLOAT': | ||
| case 'DOUBLE': | ||
| return $client->getFloatDetails($flagKey, $defaultValue, $context); | ||
| case 'JSON': | ||
| case 'OBJECT': | ||
| return $client->getObjectDetails($flagKey, is_array($defaultValue) ? $defaultValue : array(), $context); | ||
| default: | ||
| throw new InvalidArgumentException('Unsupported variationType: ' . (string) $variationType); | ||
| } | ||
| } | ||
|
|
||
| function dd_ffe_warning_handler($severity, $message) | ||
| { | ||
| if ($severity === E_USER_WARNING && strpos($message, 'Datadog-backed PHP feature flag evaluation') !== false) { | ||
| return true; | ||
| } | ||
|
|
||
| return false; | ||
| } | ||
|
|
||
| function dd_ffe_evaluate($flagKey, $variationType, $defaultValue, $targetingKey, array $attributes) | ||
| { | ||
| set_error_handler('dd_ffe_warning_handler'); | ||
| try { | ||
| return dd_ffe_evaluate_with_client($flagKey, $variationType, $defaultValue, $targetingKey, $attributes); | ||
| } finally { | ||
| restore_error_handler(); | ||
| } | ||
| } | ||
|
|
||
| function dd_ffe_details_payload($details) | ||
| { | ||
| $payload = array( | ||
| 'value' => $details->getValue(), | ||
| 'reason' => $details->getReason(), | ||
| 'variant' => $details->getVariant(), | ||
| 'errorCode' => $details->getErrorCode(), | ||
| 'errorMessage' => $details->getErrorMessage(), | ||
| 'flagMetadata' => $details->getFlagMetadata(), | ||
| 'exposureData' => $details->getExposureData(), | ||
| 'providerState' => $details->getProviderState(), | ||
| ); | ||
|
|
||
| if (method_exists($details, 'getValueType')) { | ||
| $payload['valueType'] = $details->getValueType(); | ||
| } | ||
|
|
||
| return $payload; | ||
| } | ||
|
|
||
| $payload = dd_ffe_read_payload(); | ||
|
|
||
| if (!isset($payload['flag']) || !is_string($payload['flag']) || $payload['flag'] === '') { | ||
| dd_ffe_error_response(400, 'INVALID_REQUEST', 'Expected non-empty string field: flag.'); | ||
| exit; | ||
| } | ||
|
|
||
| if (!array_key_exists('variationType', $payload) || !is_string($payload['variationType'])) { | ||
| dd_ffe_error_response(400, 'INVALID_REQUEST', 'Expected string field: variationType.'); | ||
| exit; | ||
| } | ||
|
|
||
| if (!array_key_exists('defaultValue', $payload)) { | ||
| dd_ffe_error_response(400, 'INVALID_REQUEST', 'Expected field: defaultValue.'); | ||
| exit; | ||
| } | ||
|
|
||
| $flagKey = $payload['flag']; | ||
| $variationType = $payload['variationType']; | ||
| $defaultValue = dd_ffe_normalize_default_value($payload['defaultValue'], $variationType); | ||
| $targetingKey = isset($payload['targetingKey']) && $payload['targetingKey'] !== null | ||
| ? (string) $payload['targetingKey'] | ||
| : null; | ||
| $attributes = isset($payload['attributes']) && is_array($payload['attributes']) | ||
| ? dd_ffe_scalar_attributes($payload['attributes']) | ||
| : array(); | ||
|
|
||
| try { | ||
| $details = dd_ffe_evaluate($flagKey, $variationType, $defaultValue, $targetingKey, $attributes); | ||
| if ($details !== null) { | ||
| dd_ffe_json_response(200, dd_ffe_details_payload($details)); | ||
| return; | ||
| } | ||
| } catch (Throwable $exception) { | ||
| dd_ffe_json_response(200, array( | ||
| 'value' => $defaultValue, | ||
| 'reason' => 'ERROR', | ||
| 'variant' => null, | ||
| 'errorCode' => 'PROVIDER_NOT_READY', | ||
| 'errorMessage' => $exception->getMessage(), | ||
| 'providerState' => array( | ||
| 'ready' => false, | ||
| 'productionRuntime' => false, | ||
| ), | ||
| )); | ||
| return; | ||
| } | ||
|
|
||
| dd_ffe_json_response(200, array( | ||
| 'value' => $defaultValue, | ||
| 'reason' => 'ERROR', | ||
| 'variant' => null, | ||
| 'errorCode' => 'PROVIDER_NOT_READY', | ||
| 'errorMessage' => 'Datadog-backed PHP feature flag evaluation is not wired in this weblog yet.', | ||
| 'providerState' => array( | ||
| 'ready' => false, | ||
| 'productionRuntime' => false, | ||
| ), | ||
| )); |
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This was fixed; removing