trypost/app/Actions/Post/CreatePost.php
Paulo Castellano c1418c9d21 fix: address PR review findings — publish, REST store, SSRF, race
Code-review surfaced two correctness bugs and a security gap that
needed to land before merging.

- UpdatePost::execute disabled every platform when called without
  a `platforms` key. PublishPostTool relied on that path, so every
  publish-via-MCP queued a job whose handler then found nothing
  enabled to publish to. Wrap the platform toggle in
  `Arr::has($data, 'platforms')` (matches the existing label_ids
  guard a few lines up). Add a regression assertion to
  `PostPublishToolTest::publish post immediate dispatches PublishPost
  job` that the previously-enabled platform stays enabled.

- StorePostRequest declared rules for only `platforms`,
  `scheduled_at`, and `status`. `validated()` then stripped
  `content`, `media`, and `label_ids`, so REST `POST /api/posts`
  silently created empty drafts. Added rules for content / media /
  label_ids (with workspace-scoped `Rule::exists` for labels) and
  dropped the unused `status` field — REST callers transition state
  via `PUT /posts/{id}`. Removed the dead `platforms.*.content`
  rule. Added a feature test that asserts content + media + labels
  roundtrip on create, plus a regression that an `is_active=false`
  social_account is rejected at validation.

- CreatePost::execute now syncs label_ids itself so REST and MCP
  share the behavior. Removed the duplicate sync from CreatePostTool.

- MCP UpdatePostTool didn't scope `platforms.*.id` to the post being
  updated, drifting from the REST UpdatePostRequest which adds
  `Rule::exists('post_platforms','id')->where('post_id', ...)`. Now
  it loads the post first (failing fast with `Post not found.` if
  the workspace check rejects), then uses the same Rule::exists.

- MediaAttacher fetched any URL the caller passed, including
  loopback / link-local / private targets — classic SSRF pivot.
  Now `isPublicHttpUrl` rejects non-http(s) schemes, restricted IP
  ranges, and DNS hostnames whose A/AAAA records resolve into those
  ranges (covers DNS rebinding). Bypassed under
  `app()->runningUnitTests()` so `Http::fake()` keeps working.
  Streaming the response body lets us abort early once we exceed
  MAX_BYTES instead of buffering the full payload first; redirects
  are disabled so a 200→302 trick can't bypass the host check.

- The `media[]` JSON column had a lost-update race in
  `attachFromUrls`: read `$post->media`, mutate in PHP, write back.
  Two concurrent calls clobbered each other. Now wrapped in a
  transaction with `lockForUpdate()`.

- ESLint: `resources/js/actions/**` and `resources/js/routes/**`
  are auto-generated by Wayfinder on every build. Their import
  order matches PHP scan order, not alphabetical, so import/order
  fought eslint-fix forever. Added them to ignores.
2026-05-04 12:16:39 -03:00

90 lines
2.8 KiB
PHP

<?php
declare(strict_types=1);
namespace App\Actions\Post;
use App\Enums\Post\Status as PostStatus;
use App\Models\Post;
use App\Models\User;
use App\Models\Workspace;
use Carbon\Carbon;
use Illuminate\Support\Facades\DB;
class CreatePost
{
/**
* Create a Post with optional platform selection.
*
* `platforms[]` enables specific social accounts. Each entry takes
* `social_account_id` and an optional `content_type` (defaults to the
* platform's default). Accounts not listed remain disabled but are still
* created via SyncPostPlatforms so the user can toggle them later in the
* editor.
*
* `label_ids[]` are attached after creation so the same set of UUIDs
* works for REST, MCP, and web callers.
*
* @param array{
* content?: ?string,
* media?: array<int, mixed>,
* date?: ?string,
* scheduled_at?: ?string,
* platforms?: array<int, array{social_account_id: string, content_type?: string}>,
* label_ids?: array<int, string>
* } $data
*/
public static function execute(Workspace $workspace, User $user, array $data): Post
{
$scheduledAt = self::resolveScheduledAt($data);
return DB::transaction(function () use ($workspace, $user, $data, $scheduledAt): Post {
$post = $workspace->posts()->create([
'user_id' => $user->id,
'content' => data_get($data, 'content', ''),
'media' => data_get($data, 'media', []),
'status' => PostStatus::Draft,
'scheduled_at' => $scheduledAt,
]);
SyncPostPlatforms::execute($post);
foreach (data_get($data, 'platforms', []) as $platformData) {
$accountId = data_get($platformData, 'social_account_id');
if (! $accountId) {
continue;
}
$updates = ['enabled' => true];
if ($contentType = data_get($platformData, 'content_type')) {
$updates['content_type'] = $contentType;
}
$post->postPlatforms()
->where('social_account_id', $accountId)
->update($updates);
}
if ($labelIds = data_get($data, 'label_ids')) {
$post->labels()->sync($labelIds);
}
return $post;
});
}
/**
* @param array<string, mixed> $data
*/
private static function resolveScheduledAt(array $data): Carbon
{
if ($scheduledAt = data_get($data, 'scheduled_at')) {
return Carbon::parse($scheduledAt)->utc();
}
$date = data_get($data, 'date') ?: Carbon::now('UTC')->format('Y-m-d');
return Carbon::parse($date, 'UTC')->setTime(9, 0)->utc();
}
}