1 files changed, 76 insertions, 0 deletions
diff --git a/vendor/aws/aws-sdk-php/src/InputValidationMiddleware.php b/vendor/aws/aws-sdk-php/src/InputValidationMiddleware.php
new file mode 100644
index 0000000..bd46582
--- /dev/null
+++ b/vendor/aws/aws-sdk-php/src/InputValidationMiddleware.php
@@ -0,0 +1,76 @@
+<?php
+namespace Aws;
+
+use Aws\Api\Service;
+
+/**
+ * Validates the required input parameters of commands are non empty
+ *
+ * @internal
+ */
+class InputValidationMiddleware
+{
+
+    /** @var callable */
+    private $nextHandler;
+
+    /** @var array */
+    private $mandatoryAttributeList;
+
+    /** @var Service */
+    private $service;
+
+    /**
+     * Create a middleware wrapper function.
+     *
+     * @param Service $service
+     * @param array $mandatoryAttributeList
+     * @return callable     */
+    public static function wrap(Service $service, $mandatoryAttributeList) {
+        if (!is_array($mandatoryAttributeList) ||
+            array_filter($mandatoryAttributeList, 'is_string') !== $mandatoryAttributeList
+        ) {
+            throw new \InvalidArgumentException(
+                "The mandatory attribute list must be an array of strings"
+            );
+        }
+        return function (callable $handler) use ($service, $mandatoryAttributeList) {
+            return new self($handler, $service, $mandatoryAttributeList);
+        };
+    }
+
+    public function __construct(
+        callable $nextHandler,
+        Service $service,
+        $mandatoryAttributeList
+    ) {
+        $this->service = $service;
+        $this->nextHandler = $nextHandler;
+        $this->mandatoryAttributeList = $mandatoryAttributeList;
+    }
+
+    public function __invoke(CommandInterface $cmd) {
+        $nextHandler = $this->nextHandler;
+        $op = $this->service->getOperation($cmd->getName())->toArray();
+        if (!empty($op['input']['shape'])) {
+            $service = $this->service->toArray();
+            if (!empty($input = $service['shapes'][$op['input']['shape']])) {
+                if (!empty($input['required'])) {
+                    foreach ($input['required'] as $key => $member) {
+                        if (in_array($member, $this->mandatoryAttributeList)) {
+                            $argument = is_string($cmd[$member]) ?  trim($cmd[$member]) : $cmd[$member];
+                            if ($argument === '' || $argument === null) {
+                                $commandName = $cmd->getName();
+                                throw new \InvalidArgumentException(
+                                    "The {$commandName} operation requires non-empty parameter: {$member}"
+                                );
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        return $nextHandler($cmd);
+    }
+
+}