Vendor

2021-06-01 19:55:55 +02:00
parent 052cbe3038
commit d8c489c714
328 changed files with 36645 additions and 0 deletions
@@ -0,0 +1,150 @@
+<?php
+
+namespace Nuwave\Lighthouse\Subscriptions;
+
+use Serializable;
+use GraphQL\Utils\AST;
+use Illuminate\Support\Str;
+use GraphQL\Language\AST\DocumentNode;
+use GraphQL\Type\Definition\ResolveInfo;
+use Nuwave\Lighthouse\Exceptions\SubscriptionException;
+use Nuwave\Lighthouse\Support\Contracts\GraphQLContext;
+use Nuwave\Lighthouse\Subscriptions\Contracts\ContextSerializer;
+
+class Subscriber implements Serializable
+{
+    const MISSING_OPERATION_NAME = 'Must pass an operation name when using a subscription.';
+
+    /**
+     * @var string
+     */
+    public $channel;
+
+    /**
+     * @var mixed
+     */
+    public $root;
+
+    /**
+     * @var array
+     */
+    public $args;
+
+    /**
+     * @var mixed
+     */
+    public $context;
+
+    /**
+     * @var \GraphQL\Language\AST\DocumentNode
+     */
+    public $query;
+
+    /**
+     * @var string
+     */
+    public $operationName;
+
+    /**
+     * @param  mixed[]  $args
+     * @param  \Nuwave\Lighthouse\Support\Contracts\GraphQLContext  $context
+     * @param  \GraphQL\Type\Definition\ResolveInfo  $resolveInfo
+     * @return void
+     *
+     * @throws \Nuwave\Lighthouse\Exceptions\SubscriptionException
+     */
+    public function __construct(
+        array $args,
+        GraphQLContext $context,
+        ResolveInfo $resolveInfo
+    ) {
+        $operationName = $resolveInfo->operation->name;
+        if (! $operationName) {
+            throw new SubscriptionException(
+                self::MISSING_OPERATION_NAME
+            );
+        }
+        $this->operationName = $operationName->value;
+
+        $this->channel = self::uniqueChannelName();
+        $this->args = $args;
+        $this->context = $context;
+
+        $documentNode = new DocumentNode([]);
+        $documentNode->definitions = $resolveInfo->fragments;
+        $documentNode->definitions[] = $resolveInfo->operation;
+        $this->query = $documentNode;
+    }
+
+    /**
+     * Unserialize subscription from a JSON string.
+     *
+     * @param  string  $subscription
+     * @return $this
+     */
+    public function unserialize($subscription): self
+    {
+        $data = json_decode($subscription, true);
+
+        $this->operationName = $data['operation_name'];
+        $this->channel = $data['channel'];
+        $this->args = $data['args'];
+        $this->context = $this->contextSerializer()->unserialize(
+            $data['context']
+        );
+        $this->query = AST::fromArray(
+            unserialize($data['query'])
+        );
+
+        return $this;
+    }
+
+    /**
+     * Convert this into a JSON string.
+     *
+     * @return false|string
+     */
+    public function serialize()
+    {
+        return json_encode([
+            'operation_name' => $this->operationName,
+            'channel' => $this->channel,
+            'args' => $this->args,
+            'context' => $this->contextSerializer()->serialize($this->context),
+            'query' => serialize(
+                AST::toArray($this->query)
+            ),
+        ]);
+    }
+
+    /**
+     * Set root data.
+     *
+     * @param  mixed  $root
+     * @return $this
+     */
+    public function setRoot($root): self
+    {
+        $this->root = $root;
+
+        return $this;
+    }
+
+    /**
+     * Generate a unique private channel name.
+     *
+     * @return string
+     */
+    public static function uniqueChannelName(): string
+    {
+        return 'private-lighthouse-'.Str::random(32).'-'.time();
+    }
+
+    /**
+     * @return \Nuwave\Lighthouse\Subscriptions\Contracts\ContextSerializer
+     */
+    protected function contextSerializer(): ContextSerializer
+    {
+        return app(ContextSerializer::class);
+    }
+}