Commit ccf0b46d authored by kaniini's avatar kaniini
Browse files

Merge branch '210_twitter_api_uploads_alt_text' into 'develop'

[#210] TwitterAPI: alt text support for uploaded images. Mastodon API uploads security fix.

See merge request !496
parents 48a03156 3e90f688
Pipeline #5013 passed with stages
in 4 minutes and 53 seconds
defmodule Pleroma.Object do
use Ecto.Schema
alias Pleroma.{Repo, Object, Activity}
alias Pleroma.{Repo, Object, User, Activity}
import Ecto.{Query, Changeset}
schema "objects" do
......@@ -31,6 +31,13 @@ def normalize(obj) when is_map(obj), do: Object.get_by_ap_id(obj["id"])
def normalize(ap_id) when is_binary(ap_id), do: Object.get_by_ap_id(ap_id)
def normalize(_), do: nil
# Owned objects can only be mutated by their owner
def authorize_mutation(%Object{data: %{"actor" => actor}}, %User{ap_id: ap_id}),
do: actor == ap_id
# Legacy objects can be mutated by anybody
def authorize_mutation(%Object{}, %User{}), do: true
if Mix.env() == :test do
def get_cached_by_ap_id(ap_id) do
get_by_ap_id(ap_id)
......
......@@ -574,7 +574,14 @@ def fetch_activities_bounded(recipients_to, recipients_cc, opts \\ %{}) do
def upload(file, opts \\ []) do
with {:ok, data} <- Upload.store(file, opts) do
Repo.insert(%Object{data: data})
obj_data =
if opts[:actor] do
Map.put(data, "actor", opts[:actor])
else
data
end
Repo.insert(%Object{data: obj_data})
end
end
......
......@@ -433,33 +433,31 @@ def relationships(%{assigns: %{user: user}} = conn, _) do
|> json([])
end
def update_media(%{assigns: %{user: _}} = conn, data) do
def update_media(%{assigns: %{user: user}} = conn, data) do
with %Object{} = object <- Repo.get(Object, data["id"]),
true <- Object.authorize_mutation(object, user),
true <- is_binary(data["description"]),
description <- data["description"] do
new_data = %{object.data | "name" => description}
change = Object.change(object, %{data: new_data})
{:ok, _} = Repo.update(change)
{:ok, _} =
object
|> Object.change(%{data: new_data})
|> Repo.update()
data =
new_data
|> Map.put("id", object.id)
render(conn, StatusView, "attachment.json", %{attachment: data})
attachment_data = Map.put(new_data, "id", object.id)
render(conn, StatusView, "attachment.json", %{attachment: attachment_data})
end
end
def upload(%{assigns: %{user: _}} = conn, %{"file" => file} = data) do
with {:ok, object} <- ActivityPub.upload(file, description: Map.get(data, "description")) do
change = Object.change(object, %{data: object.data})
{:ok, object} = Repo.update(change)
objdata =
object.data
|> Map.put("id", object.id)
render(conn, StatusView, "attachment.json", %{attachment: objdata})
def upload(%{assigns: %{user: user}} = conn, %{"file" => file} = data) do
with {:ok, object} <-
ActivityPub.upload(file,
actor: User.ap_id(user),
description: Map.get(data, "description")
) do
attachment_data = Map.put(object.data, "id", object.id)
render(conn, StatusView, "attachment.json", %{attachment: attachment_data})
end
end
......
......@@ -324,6 +324,7 @@ defmodule Pleroma.Web.Router do
post("/statusnet/media/upload", TwitterAPI.Controller, :upload)
post("/media/upload", TwitterAPI.Controller, :upload_json)
post("/media/metadata/create", TwitterAPI.Controller, :update_media)
post("/favorites/create/:id", TwitterAPI.Controller, :favorite)
post("/favorites/create", TwitterAPI.Controller, :favorite)
......
......@@ -93,8 +93,8 @@ def unfav(%User{} = user, ap_id_or_id) do
end
end
def upload(%Plug.Upload{} = file, format \\ "xml") do
{:ok, object} = ActivityPub.upload(file)
def upload(%Plug.Upload{} = file, %User{} = user, format \\ "xml") do
{:ok, object} = ActivityPub.upload(file, actor: User.ap_id(user))
url = List.first(object.data["url"])
href = url["href"]
......
......@@ -4,7 +4,7 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
alias Pleroma.Web.TwitterAPI.{TwitterAPI, UserView, ActivityView, NotificationView}
alias Pleroma.Web.CommonAPI
alias Pleroma.Web.CommonAPI.Utils, as: CommonUtils
alias Pleroma.{Repo, Activity, User, Notification}
alias Pleroma.{Repo, Activity, Object, User, Notification}
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Utils
alias Ecto.Changeset
......@@ -226,16 +226,51 @@ def fetch_conversation(%{assigns: %{user: user}} = conn, %{"id" => id}) do
end
end
def upload(conn, %{"media" => media}) do
response = TwitterAPI.upload(media)
@doc """
Updates metadata of uploaded media object.
Derived from [Twitter API endpoint](https://developer.twitter.com/en/docs/media/upload-media/api-reference/post-media-metadata-create).
"""
def update_media(%{assigns: %{user: user}} = conn, %{"media_id" => id} = data) do
object = Repo.get(Object, id)
description = get_in(data, ["alt_text", "text"]) || data["name"] || data["description"]
{conn, status, response_body} =
cond do
!object ->
{halt(conn), :not_found, ""}
!Object.authorize_mutation(object, user) ->
{halt(conn), :forbidden, "You can only update your own uploads."}
!is_binary(description) ->
{conn, :not_modified, ""}
true ->
new_data = Map.put(object.data, "name", description)
{:ok, _} =
object
|> Object.change(%{data: new_data})
|> Repo.update()
{conn, :no_content, ""}
end
conn
|> put_status(status)
|> json(response_body)
end
def upload(%{assigns: %{user: user}} = conn, %{"media" => media}) do
response = TwitterAPI.upload(media, user)
conn
|> put_resp_content_type("application/atom+xml")
|> send_resp(200, response)
end
def upload_json(conn, %{"media" => media}) do
response = TwitterAPI.upload(media, "json")
def upload_json(%{assigns: %{user: user}} = conn, %{"media" => media}) do
response = TwitterAPI.upload(media, user, "json")
conn
|> json_reply(200, response)
......
......@@ -36,6 +36,23 @@ defmodule Pleroma.DataCase do
:ok
end
def ensure_local_uploader(_context) do
uploader = Pleroma.Config.get([Pleroma.Upload, :uploader])
filters = Pleroma.Config.get([Pleroma.Upload, :filters])
unless uploader == Pleroma.Uploaders.Local || filters != [] do
Pleroma.Config.put([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
Pleroma.Config.put([Pleroma.Upload, :filters], [])
on_exit(fn ->
Pleroma.Config.put([Pleroma.Upload, :uploader], uploader)
Pleroma.Config.put([Pleroma.Upload, :filters], filters)
end)
end
:ok
end
@doc """
A helper that transform changeset errors to a map of messages.
......
......@@ -3,22 +3,7 @@ defmodule Pleroma.UploadTest do
use Pleroma.DataCase
describe "Storing a file with the Local uploader" do
setup do
uploader = Pleroma.Config.get([Pleroma.Upload, :uploader])
filters = Pleroma.Config.get([Pleroma.Upload, :filters])
unless uploader == Pleroma.Uploaders.Local || filters != [] do
Pleroma.Config.put([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
Pleroma.Config.put([Pleroma.Upload, :filters], [])
on_exit(fn ->
Pleroma.Config.put([Pleroma.Upload, :uploader], uploader)
Pleroma.Config.put([Pleroma.Upload, :filters], filters)
end)
end
:ok
end
setup [:ensure_local_uploader]
test "returns a media url" do
File.cp!("test/fixtures/image.jpg", "test/fixtures/image_tmp.jpg")
......
......@@ -2,7 +2,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIControllerTest do
use Pleroma.Web.ConnCase
alias Pleroma.Web.TwitterAPI.TwitterAPI
alias Pleroma.{Repo, User, Activity, Notification}
alias Pleroma.{Repo, User, Object, Activity, Notification}
alias Pleroma.Web.{OStatus, CommonAPI}
alias Pleroma.Web.ActivityPub.ActivityPub
......@@ -810,7 +810,7 @@ test "gets an users media", %{conn: conn} do
}
media =
TwitterAPI.upload(file, "json")
TwitterAPI.upload(file, user, "json")
|> Poison.decode!()
{:ok, image_post} =
......@@ -965,6 +965,10 @@ test "media upload", %{conn: conn} do
assert media["type"] == "image"
assert media["description"] == desc
assert media["id"]
object = Repo.get(Object, media["id"])
assert object.data["actor"] == User.ap_id(user)
end
test "hashtag timeline", %{conn: conn} do
......
......@@ -1376,4 +1376,82 @@ test "it returns users, ordered by similarity", %{conn: conn} do
assert [user.id, user_two.id, user_three.id] == Enum.map(resp, fn %{"id" => id} -> id end)
end
end
describe "POST /api/media/upload" do
setup context do
Pleroma.DataCase.ensure_local_uploader(context)
end
test "it performs the upload and sets `data[actor]` with AP id of uploader user", %{
conn: conn
} do
user = insert(:user)
upload_filename = "test/fixtures/image_tmp.jpg"
File.cp!("test/fixtures/image.jpg", upload_filename)
file = %Plug.Upload{
content_type: "image/jpg",
path: Path.absname(upload_filename),
filename: "image.jpg"
}
response =
conn
|> assign(:user, user)
|> put_req_header("content-type", "application/octet-stream")
|> post("/api/media/upload", %{
"media" => file
})
|> json_response(:ok)
assert response["media_id"]
object = Repo.get(Object, response["media_id"])
assert object
assert object.data["actor"] == User.ap_id(user)
end
end
describe "POST /api/media/metadata/create" do
setup do
object = insert(:note)
user = User.get_by_ap_id(object.data["actor"])
%{object: object, user: user}
end
test "it returns :forbidden status on attempt to modify someone else's upload", %{
conn: conn,
object: object
} do
initial_description = object.data["name"]
another_user = insert(:user)
conn
|> assign(:user, another_user)
|> post("/api/media/metadata/create", %{"media_id" => object.id})
|> json_response(:forbidden)
object = Repo.get(Object, object.id)
assert object.data["name"] == initial_description
end
test "it updates `data[name]` of referenced Object with provided value", %{
conn: conn,
object: object,
user: user
} do
description = "Informative description of the image. Initial value: #{object.data["name"]}}"
conn
|> assign(:user, user)
|> post("/api/media/metadata/create", %{
"media_id" => object.id,
"alt_text" => %{"text" => description}
})
|> json_response(:no_content)
object = Repo.get(Object, object.id)
assert object.data["name"] == description
end
end
end
......@@ -182,13 +182,15 @@ test "Unblock another user using screen_name" do
end
test "upload a file" do
user = insert(:user)
file = %Plug.Upload{
content_type: "image/jpg",
path: Path.absname("test/fixtures/image.jpg"),
filename: "an_image.jpg"
}
response = TwitterAPI.upload(file)
response = TwitterAPI.upload(file, user)
assert is_binary(response)
end
......
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