Refactor MovePipeline follow/undo follow to their own separate jobs, outside of the job chain

app/Jobs/MovePipeline/MoveMigrateFollowersPipeline.php

@@ -4,12 +4,9 @@ namespace App\Jobs\MovePipeline;
 
 use App\Follower;
 use App\Util\ActivityPub\Helpers;
-use App\Util\ActivityPub\HttpSignature;
 use DateTime;
 use DB;
 use Exception;
-use GuzzleHttp\Client;
-use GuzzleHttp\Pool;
 use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Queue\Queueable;
 use Illuminate\Queue\Middleware\ThrottlesExceptionsWithRedis;
@@ -116,52 +113,19 @@ class MoveMigrateFollowersPipeline implements ShouldQueue
             ->whereNotNull('profiles.user_id')
             ->whereNull('profiles.deleted_at')
             ->select('profiles.id', 'profiles.user_id', 'profiles.username', 'profiles.private_key', 'profiles.status')
-            ->chunkById(100, function ($followers) use ($addlHeaders, $targetInbox, $targetPid, $target) {
-                $client = new Client([
-                    'timeout' => config('federation.activitypub.delivery.timeout'),
-                ]);
-                $requests = function ($followers) use ($client, $target, $addlHeaders, $targetInbox, $targetPid) {
-                    $activity = [
-                        '@context' => 'https://www.w3.org/ns/activitystreams',
-                        'type' => 'Follow',
-                        'actor' => null,
-                        'object' => $target,
-                    ];
-                    foreach ($followers as $follower) {
-                        if (! $follower->private_key || ! $follower->username || ! $follower->user_id || $follower->status === 'delete') {
-                            continue;
-                        }
-                        $permalink = 'https://'.config('pixelfed.domain.app').'/users/'.$follower->username;
-                        $activity['actor'] = $permalink;
-                        $keyId = $permalink.'#main-key';
-                        $payload = json_encode($activity);
-                        $url = $targetInbox;
-                        $headers = HttpSignature::signRaw($follower->private_key, $keyId, $targetInbox, $activity, $addlHeaders);
-                        Follower::updateOrCreate([
-                            'profile_id' => $follower->id,
-                            'following_id' => $targetPid,
-                        ]);
-                        yield function () use ($client, $url, $headers, $payload) {
-                            return $client->postAsync($url, [
-                                'curl' => [
-                                    CURLOPT_HTTPHEADER => $headers,
-                                    CURLOPT_POSTFIELDS => $payload,
-                                    CURLOPT_HEADER => true,
-                                ],
-                            ]);
-                        };
+            ->chunkById(100, function ($followers) use ($targetInbox, $targetPid, $target) {
+                foreach ($followers as $follower) {
+                    if (! $follower->private_key || ! $follower->username || ! $follower->user_id || $follower->status === 'delete') {
+                        continue;
                     }
-                };
 
-                $pool = new Pool($client, $requests($followers), [
-                    'concurrency' => config('federation.activitypub.delivery.concurrency'),
-                    'fulfilled' => function ($response, $index) {},
-                    'rejected' => function ($reason, $index) {},
-                ]);
+                    Follower::updateOrCreate([
+                        'profile_id' => $follower->id,
+                        'following_id' => $targetPid,
+                    ]);
 
-                $promise = $pool->promise();
-
-                $promise->wait();
+                    MoveSendFollowPipeline::dispatch($follower, $targetInbox, $targetPid, $target)->onQueue('follow');
+                }
             }, 'id');
     }
 }

app/Jobs/MovePipeline/MoveSendFollowPipeline.php

@@ -0,0 +1,113 @@
+<?php
+
+namespace App\Jobs;
+
+use App\Util\ActivityPub\HttpSignature;
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\ClientException;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Queue\Queueable;
+use Illuminate\Queue\Middleware\ThrottlesExceptions;
+use Illuminate\Queue\Middleware\WithoutOverlapping;
+
+class MoveSendFollowPipeline implements ShouldQueue
+{
+    use Queueable;
+
+    public $follower;
+
+    public $targetInbox;
+
+    public $targetPid;
+
+    public $target;
+
+    /**
+     * The number of times the job may be attempted.
+     *
+     * @var int
+     */
+    public $tries = 5;
+
+    /**
+     * The maximum number of unhandled exceptions to allow before failing.
+     *
+     * @var int
+     */
+    public $maxExceptions = 3;
+
+    /**
+     * Get the middleware the job should pass through.
+     *
+     * @return array<int, object>
+     */
+    public function middleware(): array
+    {
+        return [
+            new WithoutOverlapping('move-send-follow:'.$this->follower->id.':target:'.$this->target),
+            (new ThrottlesExceptions(2, 5 * 60))->backoff(5),
+        ];
+    }
+
+    /**
+     * Create a new job instance.
+     */
+    public function __construct($follower, $targetInbox, $targetPid, $target)
+    {
+        $this->follower = $follower;
+        $this->targetInbox = $targetInbox;
+        $this->targetPid = $targetPid;
+        $this->target = $target;
+    }
+
+    /**
+     * Execute the job.
+     */
+    public function handle(): void
+    {
+        $follower = $this->follower;
+        $targetPid = $this->targetPid;
+        $targetInbox = $this->targetInbox;
+        $target = $this->target;
+
+        if (! $follower->username || ! $follower->private_key) {
+            return;
+        }
+
+        $permalink = 'https://'.config('pixelfed.domain.app').'/users/'.$follower->username;
+        $version = config('pixelfed.version');
+        $appUrl = config('app.url');
+        $userAgent = "(Pixelfed/{$version}; +{$appUrl})";
+        $addlHeaders = [
+            'Content-Type' => 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"',
+            'User-Agent' => $userAgent,
+        ];
+
+        $activity = [
+            '@context' => 'https://www.w3.org/ns/activitystreams',
+            'type' => 'Follow',
+            'actor' => $permalink,
+            'object' => $target,
+        ];
+
+        $keyId = $permalink.'#main-key';
+        $payload = json_encode($activity);
+        $headers = HttpSignature::signRaw($follower->private_key, $keyId, $targetInbox, $activity, $addlHeaders);
+
+        $client = new Client([
+            'timeout' => config('federation.activitypub.delivery.timeout'),
+        ]);
+
+        try {
+            $client->post($targetInbox, [
+                'curl' => [
+                    CURLOPT_HTTPHEADER => $headers,
+                    CURLOPT_POSTFIELDS => $payload,
+                    CURLOPT_HEADER => true,
+                ],
+            ]);
+        } catch (ClientException $e) {
+
+        }
+    }
+}

app/Jobs/MovePipeline/MoveSendUndoFollowPipeline.php

@@ -0,0 +1,119 @@
+<?php
+
+namespace App\Jobs;
+
+use App\Util\ActivityPub\HttpSignature;
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\ClientException;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Queue\Queueable;
+use Illuminate\Queue\Middleware\ThrottlesExceptions;
+use Illuminate\Queue\Middleware\WithoutOverlapping;
+
+class MoveSendUndoFollowPipeline implements ShouldQueue
+{
+    use Queueable;
+
+    public $follower;
+
+    public $targetInbox;
+
+    public $targetPid;
+
+    public $actor;
+
+    /**
+     * The number of times the job may be attempted.
+     *
+     * @var int
+     */
+    public $tries = 5;
+
+    /**
+     * The maximum number of unhandled exceptions to allow before failing.
+     *
+     * @var int
+     */
+    public $maxExceptions = 3;
+
+    /**
+     * Get the middleware the job should pass through.
+     *
+     * @return array<int, object>
+     */
+    public function middleware(): array
+    {
+        return [
+            new WithoutOverlapping('move-send-unfollow:'.$this->follower->id.':actor:'.$this->actor),
+            (new ThrottlesExceptions(2, 5 * 60))->backoff(5),
+        ];
+    }
+
+    /**
+     * Create a new job instance.
+     */
+    public function __construct($follower, $targetInbox, $targetPid, $actor)
+    {
+        $this->follower = $follower;
+        $this->targetInbox = $targetInbox;
+        $this->targetPid = $targetPid;
+        $this->actor = $actor;
+    }
+
+    /**
+     * Execute the job.
+     */
+    public function handle(): void
+    {
+        $follower = $this->follower;
+        $targetPid = $this->targetPid;
+        $targetInbox = $this->targetInbox;
+        $actor = $this->actor;
+
+        if (! $follower->username || ! $follower->private_key) {
+            return;
+        }
+
+        $permalink = 'https://'.config('pixelfed.domain.app').'/users/'.$follower->username;
+        $version = config('pixelfed.version');
+        $appUrl = config('app.url');
+        $userAgent = "(Pixelfed/{$version}; +{$appUrl})";
+        $addlHeaders = [
+            'Content-Type' => 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"',
+            'User-Agent' => $userAgent,
+        ];
+
+        $activity = [
+            '@context' => 'https://www.w3.org/ns/activitystreams',
+            'type' => 'Undo',
+            'id' => $permalink.'#follow/'.$targetPid.'/undo',
+            'actor' => $permalink,
+            'object' => [
+                'type' => 'Follow',
+                'id' => $permalink.'#follows/'.$targetPid,
+                'object' => $actor,
+                'actor' => $permalink,
+            ],
+        ];
+
+        $keyId = $permalink.'#main-key';
+        $payload = json_encode($activity);
+        $headers = HttpSignature::signRaw($follower->private_key, $keyId, $targetInbox, $activity, $addlHeaders);
+
+        $client = new Client([
+            'timeout' => config('federation.activitypub.delivery.timeout'),
+        ]);
+
+        try {
+            $client->post($targetInbox, [
+                'curl' => [
+                    CURLOPT_HTTPHEADER => $headers,
+                    CURLOPT_POSTFIELDS => $payload,
+                    CURLOPT_HEADER => true,
+                ],
+            ]);
+        } catch (ClientException $e) {
+
+        }
+    }
+}

app/Jobs/MovePipeline/UnfollowLegacyAccountMovePipeline.php

@@ -3,12 +3,9 @@
 namespace App\Jobs\MovePipeline;
 
 use App\Util\ActivityPub\Helpers;
-use App\Util\ActivityPub\HttpSignature;
 use DateTime;
 use DB;
 use Exception;
-use GuzzleHttp\Client;
-use GuzzleHttp\Pool;
 use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Queue\Queueable;
 use Illuminate\Queue\Middleware\ThrottlesExceptions;
@@ -101,57 +98,14 @@ class UnfollowLegacyAccountMovePipeline implements ShouldQueue
             ->whereNotNull('profiles.user_id')
             ->whereNull('profiles.deleted_at')
             ->select('profiles.id', 'profiles.user_id', 'profiles.username', 'profiles.private_key', 'profiles.status')
-            ->chunkById(100, function ($followers) use ($actor, $addlHeaders, $targetInbox, $targetPid) {
-                $client = new Client([
-                    'timeout' => config('federation.activitypub.delivery.timeout'),
-                ]);
-                $requests = function ($followers) use ($client, $actor, $addlHeaders, $targetInbox, $targetPid) {
-                    $activity = [
-                        '@context' => 'https://www.w3.org/ns/activitystreams',
-                        'type' => 'Undo',
-                        'id' => null,
-                        'actor' => null,
-                        'object' => [
-                            'type' => 'Follow',
-                            'id' => null,
-                            'object' => $actor,
-                            'actor' => null,
-                        ],
-                    ];
-                    foreach ($followers as $follower) {
-                        if (! $follower->private_key || ! $follower->username || ! $follower->user_id || $follower->status === 'delete') {
-                            continue;
-                        }
-                        $permalink = 'https://'.config('pixelfed.domain.app').'/users/'.$follower->username;
-                        $activity['id'] = $permalink.'#follow/'.$targetPid.'/undo';
-                        $activity['actor'] = $permalink;
-                        $activity['object']['id'] = $permalink.'#follows/'.$targetPid;
-                        $activity['object']['actor'] = $permalink;
-                        $keyId = $permalink.'#main-key';
-                        $payload = json_encode($activity);
-                        $url = $targetInbox;
-                        $headers = HttpSignature::signRaw($follower->private_key, $keyId, $targetInbox, $activity, $addlHeaders);
-                        yield function () use ($client, $url, $headers, $payload) {
-                            return $client->postAsync($url, [
-                                'curl' => [
-                                    CURLOPT_HTTPHEADER => $headers,
-                                    CURLOPT_POSTFIELDS => $payload,
-                                    CURLOPT_HEADER => true,
-                                ],
-                            ]);
-                        };
+            ->chunkById(100, function ($followers) use ($actor, $targetInbox, $targetPid) {
+                foreach ($followers as $follower) {
+                    if (! $follower->id || ! $follower->private_key || ! $follower->username || ! $follower->user_id || $follower->status === 'delete') {
+                        continue;
                     }
-                };
 
-                $pool = new Pool($client, $requests($followers), [
-                    'concurrency' => config('federation.activitypub.delivery.concurrency'),
-                    'fulfilled' => function ($response, $index) {},
-                    'rejected' => function ($reason, $index) {},
-                ]);
-
-                $promise = $pool->promise();
-
-                $promise->wait();
+                    MoveSendUndoFollowPipeline::dispatch($follower, $targetInbox, $targetPid, $actor)->onQueue('move');
+                }
             }, 'id');
     }
 }