- External URL that downloads (200) but isn't a supported media type → 422,
nothing persisted (the type-rejection branch, distinct from a download 404).
- Mixed batch: an already-hosted item + an external URL both succeed → both kept
in order, only the external one creates a Media row.
Final-review follow-ups:
- MediaAttacher::resolveInlineMedia now deletes the media it hosted in this call
when any item fails, so a mixed [good, bad] batch no longer orphans the good
item's Media row + file while the request is correctly rejected with 422. Makes
the create/update media resolution truly all-or-nothing.
- PostMediaRules: keep source/source_meta on both contracts (the API previously
passed them through with no item rules — don't silently drop them) so the media
item shape is uniform; only id/path/url differ by contract.
- Make MediaAttacher::fetchToWorkspace private (no external callers).
- Test the partial-batch rollback (no Media, no post persisted).
The public REST API accepted inline post media as a free-form array and stored
it verbatim, so a client could create/update a post whose media was a bare
external URL we never hosted. Publishing then depended on that third-party URL
staying alive — when it 404'd (e.g. an image proxy), the post failed across
platforms (Facebook 'unsupported media type', X 'HTTP 404', Instagram 'could
not fetch media').
Inline media URLs on create/update now go through the same download + MIME-
validate + host path as the attach-from-url endpoint (MediaAttacher), so the
stored media always points at our own storage. Items already hosted (carrying a
path) pass through untouched. If any URL can't be fetched the request is
rejected with 422 and nothing is persisted, so a post is never created with
broken media. MCP and the web flow were already safe and are unchanged.
- MediaAttacher: extract fetchToWorkspace() + add resolveInlineMedia()
- Post::allowedMediaTypesFor() so the create flow can compute allowed types
without a persisted post
- API Store/UpdatePostRequest: media.* item rules (mirroring the web; prevents
validated() from stripping hosted-item keys)
- PostController store()/update(): host external media before persisting
Adds POST /api/posts/{post}/media for direct file (multipart) upload
and renames the existing URL-based flow to /api/posts/{post}/media/from-url
so the path matches HTTP semantics (POST <resource>/media expects a file
body, not JSON URLs).
The multipart action validates type against the post's enabled platforms
(image rejected on TikTok-only posts), enforces per-type size caps, and
reuses Workspace::addMedia + Post::appendMedia. URL-based attaching is
unchanged behaviorally — only the route name and controller method are
renamed for symmetry. The MCP AttachMediaFromUrlTool was already named
correctly and needs no changes; binary upload via MCP is a host-protocol
limitation that no MCP server (including Postiz) supports.
The MediaAttacher used to roll its own SSRF guard with DNS resolution
and a static fakeUrlSafety() flag for tests. Validating URLs is a
request-layer concern, not a service-layer one. Laravel ships
'active_url' which does the same DNS resolvability check via
dns_get_record — applying it at the FormRequest / MCP validate() level
catches dead URLs upfront with a proper 422 instead of letting the
download silently fail.
- Replace the inline 'urls.*' => ['url:http,https'] rule with
['url:http,https', 'active_url'] in both Api/PostController::attachMedia
and Mcp/Tools/Post/AttachMediaFromUrlTool.
- Drop isUrlSafe(), fakeUrlSafety(), resetUrlSafety(), $skipUrlSafety
from MediaAttacher. The remaining defenses (Http::sink streaming +
progress abort at MAX_BYTES, allow_redirects: false, MIME allowlist)
cover the operational concerns.
- Restore tests/TestCase to the original setUp — no SSRF bypass needed
anymore because active_url is satisfied by the test hosts.
- Swap synthetic test hosts (cdn.example.com / evil.example.com) for
example.com / example.org. Both are RFC-reserved AND have stable A
records, so active_url accepts them while Http::fake() still
intercepts the actual request.
For SSRF defense beyond 'active_url' (which doesn't block private IPs),
trypost relies on production network egress controls. Open-source
self-hosters who run without a firewall accept the corresponding risk;
that's a deployment concern, not a request validation concern.
Lets ChatGPT (MCP) and external clients (REST API) drive the full lifecycle of
a post — create with platform selection, attach media from URLs, schedule or
publish immediately, and fetch engagement metrics — without touching the web UI.
MCP tools added: UpdatePostTool, PublishPostTool, AttachMediaFromUrlTool,
ListContentTypesTool, GetPostMetricsTool, PreviewPostTool. CreatePostTool now
accepts platforms[] + scheduled_at + label_ids; ListPostsTool gains
status/search/limit filters.
REST endpoints added: POST /api/posts/{post}/media, GET /api/posts/{post}/metrics,
GET /api/posts/{post}/preview, GET /api/content-types.
Also fixes a silent CreatePost::execute bug — the action validated platforms[]
but ignored it, so REST callers never saw their selection persisted. Adds cross
validation rules (ContentTypeMatchesPlatform / ContentTypeMatchesPostPlatform)
so a LinkedIn account can't be saddled with x_post, and rejects inactive social
accounts during validation instead of failing silently downstream.
Shared services (PostMetricsFetcher, PostPreviewer, MediaAttacher) back both
MCP tools and REST controllers so behaviour stays aligned. New Resources
(PlatformContentTypesResource, PostMetricsResource, PostPreviewResource,
PostMediaAttachResource) keep controllers free of inline model mapping.
Suite: 1.332 passing, 0 failing — covers web (PostControllerTest), REST
(PostApiTest, PlatformApiTest, PostMediaApiTest), MCP (66 tool tests), and
the publish job (PublishToSocialPlatformTest).
Removes /docs from git tracking and TIKTOK_REVIEW_VIDEO_SCRIPT.md.
