git.squeep.com Git - akkoma/blob - lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

   1 defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   2   use Pleroma.Web, :controller
   3   alias Pleroma.{Repo, Activity, User, Notification, Stats}
   4   alias Pleroma.Web
   5   alias Pleroma.Web.MastodonAPI.{StatusView, AccountView, MastodonView}
   6   alias Pleroma.Web.ActivityPub.ActivityPub
   7   alias Pleroma.Web.{CommonAPI, OStatus}
   8   alias Pleroma.Web.OAuth.{Authorization, Token, App}
   9   alias Comeonin.Pbkdf2
  10   import Ecto.Query
  11   require Logger
  12
  13   def create_app(conn, params) do
  14     with cs <- App.register_changeset(%App{}, params) |> IO.inspect(),
  15          {:ok, app} <- Repo.insert(cs) |> IO.inspect() do
  16       res = %{
  17         id: app.id,
  18         client_id: app.client_id,
  19         client_secret: app.client_secret
  20       }
  21
  22       json(conn, res)
  23     end
  24   end
  25
  26   def update_credentials(%{assigns: %{user: user}} = conn, params) do
  27     original_user = user
  28
  29     params =
  30       if bio = params["note"] do
  31         Map.put(params, "bio", bio)
  32       else
  33         params
  34       end
  35
  36     params =
  37       if name = params["display_name"] do
  38         Map.put(params, "name", name)
  39       else
  40         params
  41       end
  42
  43     user =
  44       if avatar = params["avatar"] do
  45         with %Plug.Upload{} <- avatar,
  46              {:ok, object} <- ActivityPub.upload(avatar),
  47              change = Ecto.Changeset.change(user, %{avatar: object.data}),
  48              {:ok, user} = User.update_and_set_cache(change) do
  49           user
  50         else
  51           _e -> user
  52         end
  53       else
  54         user
  55       end
  56
  57     user =
  58       if banner = params["header"] do
  59         with %Plug.Upload{} <- banner,
  60              {:ok, object} <- ActivityPub.upload(banner),
  61              new_info <- Map.put(user.info, "banner", object.data),
  62              change <- User.info_changeset(user, %{info: new_info}),
  63              {:ok, user} <- User.update_and_set_cache(change) do
  64           user
  65         else
  66           _e -> user
  67         end
  68       else
  69         user
  70       end
  71
  72     with changeset <- User.update_changeset(user, params),
  73          {:ok, user} <- User.update_and_set_cache(changeset) do
  74       if original_user != user do
  75         CommonAPI.update(user)
  76       end
  77
  78       json(conn, AccountView.render("account.json", %{user: user}))
  79     else
  80       _e ->
  81         conn
  82         |> put_status(403)
  83         |> json(%{error: "Invalid request"})
  84     end
  85   end
  86
  87   def verify_credentials(%{assigns: %{user: user}} = conn, _) do
  88     account = AccountView.render("account.json", %{user: user})
  89     json(conn, account)
  90   end
  91
  92   def user(conn, %{"id" => id}) do
  93     with %User{} = user <- Repo.get(User, id) do
  94       account = AccountView.render("account.json", %{user: user})
  95       json(conn, account)
  96     else
  97       _e ->
  98         conn
  99         |> put_status(404)
 100         |> json(%{error: "Can't find user"})
 101     end
 102   end
 103
 104   @instance Application.get_env(:pleroma, :instance)
 105
 106   def masto_instance(conn, _params) do
 107     response = %{
 108       uri: Web.base_url(),
 109       title: Keyword.get(@instance, :name),
 110       description: "A Pleroma instance, an alternative fediverse server",
 111       version: Keyword.get(@instance, :version),
 112       email: Keyword.get(@instance, :email),
 113       urls: %{
 114         streaming_api: String.replace(Web.base_url(), ["http", "https"], "wss")
 115       },
 116       stats: Stats.get_stats(),
 117       thumbnail: Web.base_url() <> "/instance/thumbnail.jpeg",
 118       max_toot_chars: Keyword.get(@instance, :limit)
 119     }
 120
 121     json(conn, response)
 122   end
 123
 124   def peers(conn, _params) do
 125     json(conn, Stats.get_peers())
 126   end
 127
 128   defp mastodonized_emoji do
 129     Pleroma.Formatter.get_custom_emoji()
 130     |> Enum.map(fn {shortcode, relative_url} ->
 131       url = to_string(URI.merge(Web.base_url(), relative_url))
 132
 133       %{
 134         "shortcode" => shortcode,
 135         "static_url" => url,
 136         "url" => url
 137       }
 138     end)
 139   end
 140
 141   def custom_emojis(conn, _params) do
 142     mastodon_emoji = mastodonized_emoji()
 143     json(conn, mastodon_emoji)
 144   end
 145
 146   defp add_link_headers(conn, method, activities, param \\ false) do
 147     last = List.last(activities)
 148     first = List.first(activities)
 149
 150     if last do
 151       min = last.id
 152       max = first.id
 153
 154       {next_url, prev_url} =
 155         if param do
 156           {
 157             mastodon_api_url(Pleroma.Web.Endpoint, method, param, max_id: min),
 158             mastodon_api_url(Pleroma.Web.Endpoint, method, param, since_id: max)
 159           }
 160         else
 161           {
 162             mastodon_api_url(Pleroma.Web.Endpoint, method, max_id: min),
 163             mastodon_api_url(Pleroma.Web.Endpoint, method, since_id: max)
 164           }
 165         end
 166
 167       conn
 168       |> put_resp_header("link", "<#{next_url}>; rel=\"next\", <#{prev_url}>; rel=\"prev\"")
 169     else
 170       conn
 171     end
 172   end
 173
 174   def home_timeline(%{assigns: %{user: user}} = conn, params) do
 175     params =
 176       params
 177       |> Map.put("type", ["Create", "Announce"])
 178       |> Map.put("blocking_user", user)
 179       |> Map.put("user", user)
 180
 181     activities =
 182       ActivityPub.fetch_activities([user.ap_id | user.following], params)
 183       |> Enum.reverse()
 184
 185     conn
 186     |> add_link_headers(:home_timeline, activities)
 187     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 188   end
 189
 190   def public_timeline(%{assigns: %{user: user}} = conn, params) do
 191     params =
 192       params
 193       |> Map.put("type", ["Create", "Announce"])
 194       |> Map.put("local_only", params["local"] in [true, "True", "true", "1"])
 195       |> Map.put("blocking_user", user)
 196
 197     activities =
 198       ActivityPub.fetch_public_activities(params)
 199       |> Enum.reverse()
 200
 201     conn
 202     |> add_link_headers(:public_timeline, activities)
 203     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 204   end
 205
 206   def user_statuses(%{assigns: %{user: user}} = conn, params) do
 207     with %User{ap_id: ap_id} <- Repo.get(User, params["id"]) do
 208       params =
 209         params
 210         |> Map.put("type", ["Create", "Announce"])
 211         |> Map.put("actor_id", ap_id)
 212         |> Map.put("whole_db", true)
 213
 214       activities =
 215         ActivityPub.fetch_public_activities(params)
 216         |> Enum.reverse()
 217
 218       conn
 219       |> add_link_headers(:user_statuses, activities, params["id"])
 220       |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 221     end
 222   end
 223
 224   def get_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 225     with %Activity{} = activity <- Repo.get(Activity, id),
 226          true <- ActivityPub.visible_for_user?(activity, user) do
 227       render(conn, StatusView, "status.json", %{activity: activity, for: user})
 228     end
 229   end
 230
 231   def get_context(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 232     with %Activity{} = activity <- Repo.get(Activity, id),
 233          activities <-
 234            ActivityPub.fetch_activities_for_context(activity.data["context"], %{
 235              "blocking_user" => user,
 236              "user" => user
 237            }),
 238          activities <-
 239            activities |> Enum.filter(fn %{id: aid} -> to_string(aid) != to_string(id) end),
 240          activities <-
 241            activities |> Enum.filter(fn %{data: %{"type" => type}} -> type == "Create" end),
 242          grouped_activities <- Enum.group_by(activities, fn %{id: id} -> id < activity.id end) do
 243       result = %{
 244         ancestors:
 245           StatusView.render(
 246             "index.json",
 247             for: user,
 248             activities: grouped_activities[true] || [],
 249             as: :activity
 250           )
 251           |> Enum.reverse(),
 252         descendants:
 253           StatusView.render(
 254             "index.json",
 255             for: user,
 256             activities: grouped_activities[false] || [],
 257             as: :activity
 258           )
 259           |> Enum.reverse()
 260       }
 261
 262       json(conn, result)
 263     end
 264   end
 265
 266   def post_status(%{assigns: %{user: user}} = conn, %{"status" => _} = params) do
 267     params =
 268       params
 269       |> Map.put("in_reply_to_status_id", params["in_reply_to_id"])
 270       |> Map.put("no_attachment_links", true)
 271
 272     {:ok, activity} = CommonAPI.post(user, params)
 273     render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
 274   end
 275
 276   def delete_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 277     with {:ok, %Activity{}} <- CommonAPI.delete(id, user) do
 278       json(conn, %{})
 279     else
 280       _e ->
 281         conn
 282         |> put_status(403)
 283         |> json(%{error: "Can't delete this post"})
 284     end
 285   end
 286
 287   def reblog_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 288     with {:ok, announce, _activity} = CommonAPI.repeat(ap_id_or_id, user) do
 289       render(conn, StatusView, "status.json", %{activity: announce, for: user, as: :activity})
 290     end
 291   end
 292
 293   def fav_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 294     with {:ok, _fav, %{data: %{"id" => id}}} = CommonAPI.favorite(ap_id_or_id, user),
 295          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
 296       render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
 297     end
 298   end
 299
 300   def unfav_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 301     with {:ok, %{data: %{"id" => id}}} = CommonAPI.unfavorite(ap_id_or_id, user),
 302          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
 303       render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
 304     end
 305   end
 306
 307   def notifications(%{assigns: %{user: user}} = conn, params) do
 308     notifications = Notification.for_user(user, params)
 309
 310     result =
 311       Enum.map(notifications, fn x ->
 312         render_notification(user, x)
 313       end)
 314       |> Enum.filter(& &1)
 315
 316     conn
 317     |> add_link_headers(:notifications, notifications)
 318     |> json(result)
 319   end
 320
 321   def get_notification(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
 322     with {:ok, notification} <- Notification.get(user, id) do
 323       json(conn, render_notification(user, notification))
 324     else
 325       {:error, reason} ->
 326         conn
 327         |> put_resp_content_type("application/json")
 328         |> send_resp(403, Jason.encode!(%{"error" => reason}))
 329     end
 330   end
 331
 332   def clear_notifications(%{assigns: %{user: user}} = conn, _params) do
 333     Notification.clear(user)
 334     json(conn, %{})
 335   end
 336
 337   def dismiss_notification(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
 338     with {:ok, _notif} <- Notification.dismiss(user, id) do
 339       json(conn, %{})
 340     else
 341       {:error, reason} ->
 342         conn
 343         |> put_resp_content_type("application/json")
 344         |> send_resp(403, Jason.encode!(%{"error" => reason}))
 345     end
 346   end
 347
 348   def relationships(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 349     id = List.wrap(id)
 350     q = from(u in User, where: u.id in ^id)
 351     targets = Repo.all(q)
 352     render(conn, AccountView, "relationships.json", %{user: user, targets: targets})
 353   end
 354
 355   def upload(%{assigns: %{user: _}} = conn, %{"file" => file}) do
 356     with {:ok, object} <- ActivityPub.upload(file) do
 357       data =
 358         object.data
 359         |> Map.put("id", object.id)
 360
 361       render(conn, StatusView, "attachment.json", %{attachment: data})
 362     end
 363   end
 364
 365   def favourited_by(conn, %{"id" => id}) do
 366     with %Activity{data: %{"object" => %{"likes" => likes}}} <- Repo.get(Activity, id) do
 367       q = from(u in User, where: u.ap_id in ^likes)
 368       users = Repo.all(q)
 369       render(conn, AccountView, "accounts.json", %{users: users, as: :user})
 370     else
 371       _ -> json(conn, [])
 372     end
 373   end
 374
 375   def reblogged_by(conn, %{"id" => id}) do
 376     with %Activity{data: %{"object" => %{"announcements" => announces}}} <- Repo.get(Activity, id) do
 377       q = from(u in User, where: u.ap_id in ^announces)
 378       users = Repo.all(q)
 379       render(conn, AccountView, "accounts.json", %{users: users, as: :user})
 380     else
 381       _ -> json(conn, [])
 382     end
 383   end
 384
 385   def hashtag_timeline(%{assigns: %{user: user}} = conn, params) do
 386     params =
 387       params
 388       |> Map.put("type", "Create")
 389       |> Map.put("local_only", !!params["local"])
 390       |> Map.put("blocking_user", user)
 391
 392     activities =
 393       ActivityPub.fetch_public_activities(params)
 394       |> Enum.reverse()
 395
 396     conn
 397     |> add_link_headers(:hashtag_timeline, activities, params["tag"])
 398     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 399   end
 400
 401   # TODO: Pagination
 402   def followers(conn, %{"id" => id}) do
 403     with %User{} = user <- Repo.get(User, id),
 404          {:ok, followers} <- User.get_followers(user) do
 405       render(conn, AccountView, "accounts.json", %{users: followers, as: :user})
 406     end
 407   end
 408
 409   def following(conn, %{"id" => id}) do
 410     with %User{} = user <- Repo.get(User, id),
 411          {:ok, followers} <- User.get_friends(user) do
 412       render(conn, AccountView, "accounts.json", %{users: followers, as: :user})
 413     end
 414   end
 415
 416   def follow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
 417     with %User{} = followed <- Repo.get(User, id),
 418          {:ok, follower} <- User.follow(follower, followed),
 419          {:ok, _activity} <- ActivityPub.follow(follower, followed) do
 420       render(conn, AccountView, "relationship.json", %{user: follower, target: followed})
 421     else
 422       {:error, message} ->
 423         conn
 424         |> put_resp_content_type("application/json")
 425         |> send_resp(403, Jason.encode!(%{"error" => message}))
 426     end
 427   end
 428
 429   def follow(%{assigns: %{user: follower}} = conn, %{"uri" => uri}) do
 430     with %User{} = followed <- Repo.get_by(User, nickname: uri),
 431          {:ok, follower} <- User.follow(follower, followed),
 432          {:ok, _activity} <- ActivityPub.follow(follower, followed) do
 433       render(conn, AccountView, "account.json", %{user: followed})
 434     else
 435       {:error, message} ->
 436         conn
 437         |> put_resp_content_type("application/json")
 438         |> send_resp(403, Jason.encode!(%{"error" => message}))
 439     end
 440   end
 441
 442   # TODO: Clean up and unify
 443   def unfollow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
 444     with %User{} = followed <- Repo.get(User, id),
 445          {:ok, follower, follow_activity} <- User.unfollow(follower, followed),
 446          {:ok, _activity} <-
 447            ActivityPub.insert(%{
 448              "type" => "Undo",
 449              "actor" => follower.ap_id,
 450              # get latest Follow for these users
 451              "object" => follow_activity.data["id"]
 452            }) do
 453       render(conn, AccountView, "relationship.json", %{user: follower, target: followed})
 454     end
 455   end
 456
 457   def block(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
 458     with %User{} = blocked <- Repo.get(User, id),
 459          {:ok, blocker} <- User.block(blocker, blocked) do
 460       render(conn, AccountView, "relationship.json", %{user: blocker, target: blocked})
 461     else
 462       {:error, message} ->
 463         conn
 464         |> put_resp_content_type("application/json")
 465         |> send_resp(403, Jason.encode!(%{"error" => message}))
 466     end
 467   end
 468
 469   def unblock(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
 470     with %User{} = blocked <- Repo.get(User, id),
 471          {:ok, blocker} <- User.unblock(blocker, blocked) do
 472       render(conn, AccountView, "relationship.json", %{user: blocker, target: blocked})
 473     else
 474       {:error, message} ->
 475         conn
 476         |> put_resp_content_type("application/json")
 477         |> send_resp(403, Jason.encode!(%{"error" => message}))
 478     end
 479   end
 480
 481   # TODO: Use proper query
 482   def blocks(%{assigns: %{user: user}} = conn, _) do
 483     with blocked_users <- user.info["blocks"] || [],
 484          accounts <- Enum.map(blocked_users, fn ap_id -> User.get_cached_by_ap_id(ap_id) end) do
 485       res = AccountView.render("accounts.json", users: accounts, for: user, as: :user)
 486       json(conn, res)
 487     end
 488   end
 489
 490   def search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
 491     accounts = User.search(query, params["resolve"] == "true")
 492
 493     fetched =
 494       if Regex.match?(~r/https?:/, query) do
 495         with {:ok, activities} <- OStatus.fetch_activity_from_url(query) do
 496           activities
 497           |> Enum.filter(fn
 498             %{data: %{"type" => "Create"}} -> true
 499             _ -> false
 500           end)
 501         else
 502           _e -> []
 503         end
 504       end || []
 505
 506     q =
 507       from(
 508         a in Activity,
 509         where: fragment("?->>'type' = 'Create'", a.data),
 510         where: "https://www.w3.org/ns/activitystreams#Public" in a.recipients,
 511         where:
 512           fragment(
 513             "to_tsvector('english', ?->'object'->>'content') @@ plainto_tsquery('english', ?)",
 514             a.data,
 515             ^query
 516           ),
 517         limit: 20
 518       )
 519
 520     statuses = Repo.all(q) ++ fetched
 521
 522     tags =
 523       String.split(query)
 524       |> Enum.uniq()
 525       |> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
 526       |> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
 527
 528     res = %{
 529       "accounts" => AccountView.render("accounts.json", users: accounts, for: user, as: :user),
 530       "statuses" =>
 531         StatusView.render("index.json", activities: statuses, for: user, as: :activity),
 532       "hashtags" => tags
 533     }
 534
 535     json(conn, res)
 536   end
 537
 538   def account_search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
 539     accounts = User.search(query, params["resolve"] == "true")
 540
 541     res = AccountView.render("accounts.json", users: accounts, for: user, as: :user)
 542
 543     json(conn, res)
 544   end
 545
 546   def favourites(%{assigns: %{user: user}} = conn, _) do
 547     params =
 548       %{}
 549       |> Map.put("type", "Create")
 550       |> Map.put("favorited_by", user.ap_id)
 551       |> Map.put("blocking_user", user)
 552
 553     activities =
 554       ActivityPub.fetch_public_activities(params)
 555       |> Enum.reverse()
 556
 557     conn
 558     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 559   end
 560
 561   def index(%{assigns: %{user: user}} = conn, _params) do
 562     token =
 563       conn
 564       |> get_session(:oauth_token)
 565
 566     if user && token do
 567       mastodon_emoji = mastodonized_emoji()
 568       accounts = Map.put(%{}, user.id, AccountView.render("account.json", %{user: user}))
 569
 570       initial_state =
 571         %{
 572           meta: %{
 573             streaming_api_base_url:
 574               String.replace(Pleroma.Web.Endpoint.static_url(), "http", "ws"),
 575             access_token: token,
 576             locale: "en",
 577             domain: Pleroma.Web.Endpoint.host(),
 578             admin: "1",
 579             me: "#{user.id}",
 580             unfollow_modal: false,
 581             boost_modal: false,
 582             delete_modal: true,
 583             auto_play_gif: false,
 584             reduce_motion: false
 585           },
 586           compose: %{
 587             me: "#{user.id}",
 588             default_privacy: "public",
 589             default_sensitive: false
 590           },
 591           media_attachments: %{
 592             accept_content_types: [
 593               ".jpg",
 594               ".jpeg",
 595               ".png",
 596               ".gif",
 597               ".webm",
 598               ".mp4",
 599               ".m4v",
 600               "image\/jpeg",
 601               "image\/png",
 602               "image\/gif",
 603               "video\/webm",
 604               "video\/mp4"
 605             ]
 606           },
 607           settings: Map.get(user.info, "settings") || %{
 608             onboarded: true,
 609             home: %{
 610               shows: %{
 611                 reblog: true,
 612                 reply: true
 613               }
 614             },
 615             notifications: %{
 616               alerts: %{
 617                 follow: true,
 618                 favourite: true,
 619                 reblog: true,
 620                 mention: true
 621               },
 622               shows: %{
 623                 follow: true,
 624                 favourite: true,
 625                 reblog: true,
 626                 mention: true
 627               },
 628               sounds: %{
 629                 follow: true,
 630                 favourite: true,
 631                 reblog: true,
 632                 mention: true
 633               }
 634             }
 635           },
 636           push_subscription: nil,
 637           accounts: accounts,
 638           custom_emojis: mastodon_emoji,
 639           char_limit: Keyword.get(@instance, :limit)
 640         }
 641         |> Jason.encode!()
 642
 643       conn
 644       |> put_layout(false)
 645       |> render(MastodonView, "index.html", %{initial_state: initial_state})
 646     else
 647       conn
 648       |> redirect(to: "/web/login")
 649     end
 650   end
 651
 652   def put_settings(%{assigns: %{user: user}} = conn, %{"data" => settings} = _params) do
 653     with new_info <- Map.put(user.info, "settings", settings),
 654          change <- User.info_changeset(user, %{info: new_info}),
 655          {:ok, _user} <- User.update_and_set_cache(change) do
 656       conn
 657       |> json(%{})
 658     else e ->
 659         conn
 660         |> json(%{error: inspect(e)})
 661     end
 662   end
 663
 664   def login(conn, _) do
 665     conn
 666     |> render(MastodonView, "login.html", %{error: false})
 667   end
 668
 669   defp get_or_make_app() do
 670     with %App{} = app <- Repo.get_by(App, client_name: "Mastodon-Local") do
 671       {:ok, app}
 672     else
 673       _e ->
 674         cs =
 675           App.register_changeset(%App{}, %{
 676             client_name: "Mastodon-Local",
 677             redirect_uris: ".",
 678             scopes: "read,write,follow"
 679           })
 680
 681         Repo.insert(cs)
 682     end
 683   end
 684
 685   def login_post(conn, %{"authorization" => %{"name" => name, "password" => password}}) do
 686     with %User{} = user <- User.get_cached_by_nickname(name),
 687          true <- Pbkdf2.checkpw(password, user.password_hash),
 688          {:ok, app} <- get_or_make_app(),
 689          {:ok, auth} <- Authorization.create_authorization(app, user),
 690          {:ok, token} <- Token.exchange_token(app, auth) do
 691       conn
 692       |> put_session(:oauth_token, token.token)
 693       |> redirect(to: "/web/getting-started")
 694     else
 695       _e ->
 696         conn
 697         |> render(MastodonView, "login.html", %{error: "Wrong username or password"})
 698     end
 699   end
 700
 701   def logout(conn, _) do
 702     conn
 703     |> clear_session
 704     |> redirect(to: "/")
 705   end
 706
 707   def relationship_noop(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 708     Logger.debug("Unimplemented, returning unmodified relationship")
 709
 710     with %User{} = target <- Repo.get(User, id) do
 711       render(conn, AccountView, "relationship.json", %{user: user, target: target})
 712     end
 713   end
 714
 715   def empty_array(conn, _) do
 716     Logger.debug("Unimplemented, returning an empty array")
 717     json(conn, [])
 718   end
 719
 720   def empty_object(conn, _) do
 721     Logger.debug("Unimplemented, returning an empty object")
 722     json(conn, %{})
 723   end
 724
 725   def render_notification(user, %{id: id, activity: activity, inserted_at: created_at} = _params) do
 726     actor = User.get_cached_by_ap_id(activity.data["actor"])
 727
 728     created_at =
 729       NaiveDateTime.to_iso8601(created_at)
 730       |> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
 731
 732     case activity.data["type"] do
 733       "Create" ->
 734         %{
 735           id: id,
 736           type: "mention",
 737           created_at: created_at,
 738           account: AccountView.render("account.json", %{user: actor}),
 739           status: StatusView.render("status.json", %{activity: activity, for: user})
 740         }
 741
 742       "Like" ->
 743         liked_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
 744
 745         %{
 746           id: id,
 747           type: "favourite",
 748           created_at: created_at,
 749           account: AccountView.render("account.json", %{user: actor}),
 750           status: StatusView.render("status.json", %{activity: liked_activity, for: user})
 751         }
 752
 753       "Announce" ->
 754         announced_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
 755
 756         %{
 757           id: id,
 758           type: "reblog",
 759           created_at: created_at,
 760           account: AccountView.render("account.json", %{user: actor}),
 761           status: StatusView.render("status.json", %{activity: announced_activity, for: user})
 762         }
 763
 764       "Follow" ->
 765         %{
 766           id: id,
 767           type: "follow",
 768           created_at: created_at,
 769           account: AccountView.render("account.json", %{user: actor})
 770         }
 771
 772       _ ->
 773         nil
 774     end
 775   end
 776 end