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, ListView}
   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   @mastodon_api_level "2.3.3"
 106
 107   def masto_instance(conn, _params) do
 108     response = %{
 109       uri: Web.base_url(),
 110       title: Keyword.get(@instance, :name),
 111       description: "A Pleroma instance, an alternative fediverse server",
 112       version: "#{@mastodon_api_level} (compatible; #{Keyword.get(@instance, :version)})",
 113       email: Keyword.get(@instance, :email),
 114       urls: %{
 115         streaming_api: String.replace(Pleroma.Web.Endpoint.static_url(), "http", "ws")
 116       },
 117       stats: Stats.get_stats(),
 118       thumbnail: Web.base_url() <> "/instance/thumbnail.jpeg",
 119       max_toot_chars: Keyword.get(@instance, :limit)
 120     }
 121
 122     json(conn, response)
 123   end
 124
 125   def peers(conn, _params) do
 126     json(conn, Stats.get_peers())
 127   end
 128
 129   defp mastodonized_emoji do
 130     Pleroma.Formatter.get_custom_emoji()
 131     |> Enum.map(fn {shortcode, relative_url} ->
 132       url = to_string(URI.merge(Web.base_url(), relative_url))
 133
 134       %{
 135         "shortcode" => shortcode,
 136         "static_url" => url,
 137         "url" => url
 138       }
 139     end)
 140   end
 141
 142   def custom_emojis(conn, _params) do
 143     mastodon_emoji = mastodonized_emoji()
 144     json(conn, mastodon_emoji)
 145   end
 146
 147   defp add_link_headers(conn, method, activities, param \\ false) do
 148     last = List.last(activities)
 149     first = List.first(activities)
 150
 151     if last do
 152       min = last.id
 153       max = first.id
 154
 155       {next_url, prev_url} =
 156         if param do
 157           {
 158             mastodon_api_url(Pleroma.Web.Endpoint, method, param, max_id: min),
 159             mastodon_api_url(Pleroma.Web.Endpoint, method, param, since_id: max)
 160           }
 161         else
 162           {
 163             mastodon_api_url(Pleroma.Web.Endpoint, method, max_id: min),
 164             mastodon_api_url(Pleroma.Web.Endpoint, method, since_id: max)
 165           }
 166         end
 167
 168       conn
 169       |> put_resp_header("link", "<#{next_url}>; rel=\"next\", <#{prev_url}>; rel=\"prev\"")
 170     else
 171       conn
 172     end
 173   end
 174
 175   def home_timeline(%{assigns: %{user: user}} = conn, params) do
 176     params =
 177       params
 178       |> Map.put("type", ["Create", "Announce"])
 179       |> Map.put("blocking_user", user)
 180       |> Map.put("user", user)
 181
 182     activities =
 183       ActivityPub.fetch_activities([user.ap_id | user.following], params)
 184       |> Enum.reverse()
 185
 186     conn
 187     |> add_link_headers(:home_timeline, activities)
 188     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 189   end
 190
 191   def public_timeline(%{assigns: %{user: user}} = conn, params) do
 192     params =
 193       params
 194       |> Map.put("type", ["Create", "Announce"])
 195       |> Map.put("local_only", params["local"] in [true, "True", "true", "1"])
 196       |> Map.put("blocking_user", user)
 197
 198     activities =
 199       ActivityPub.fetch_public_activities(params)
 200       |> Enum.reverse()
 201
 202     conn
 203     |> add_link_headers(:public_timeline, activities)
 204     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 205   end
 206
 207   def user_statuses(%{assigns: %{user: reading_user}} = conn, params) do
 208     with %User{} = user <- Repo.get(User, params["id"]) do
 209       # Since Pleroma has no "pinned" posts feature, we'll just set an empty list here
 210       activities =
 211         if params["pinned"] == "true" do
 212           []
 213         else
 214           ActivityPub.fetch_user_activities(user, reading_user, params)
 215         end
 216
 217       conn
 218       |> add_link_headers(:user_statuses, activities, params["id"])
 219       |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 220     end
 221   end
 222
 223   def get_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 224     with %Activity{} = activity <- Repo.get(Activity, id),
 225          true <- ActivityPub.visible_for_user?(activity, user) do
 226       render(conn, StatusView, "status.json", %{activity: activity, for: user})
 227     end
 228   end
 229
 230   def get_context(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 231     with %Activity{} = activity <- Repo.get(Activity, id),
 232          activities <-
 233            ActivityPub.fetch_activities_for_context(activity.data["context"], %{
 234              "blocking_user" => user,
 235              "user" => user
 236            }),
 237          activities <-
 238            activities |> Enum.filter(fn %{id: aid} -> to_string(aid) != to_string(id) end),
 239          activities <-
 240            activities |> Enum.filter(fn %{data: %{"type" => type}} -> type == "Create" end),
 241          grouped_activities <- Enum.group_by(activities, fn %{id: id} -> id < activity.id end) do
 242       result = %{
 243         ancestors:
 244           StatusView.render(
 245             "index.json",
 246             for: user,
 247             activities: grouped_activities[true] || [],
 248             as: :activity
 249           )
 250           |> Enum.reverse(),
 251         descendants:
 252           StatusView.render(
 253             "index.json",
 254             for: user,
 255             activities: grouped_activities[false] || [],
 256             as: :activity
 257           )
 258           |> Enum.reverse()
 259       }
 260
 261       json(conn, result)
 262     end
 263   end
 264
 265   def post_status(%{assigns: %{user: user}} = conn, %{"status" => _} = params) do
 266     params =
 267       params
 268       |> Map.put("in_reply_to_status_id", params["in_reply_to_id"])
 269       |> Map.put("no_attachment_links", true)
 270
 271     idempotency_key =
 272       case get_req_header(conn, "idempotency-key") do
 273         [key] -> key
 274         _ -> Ecto.UUID.generate()
 275       end
 276
 277     {:ok, activity} =
 278       Cachex.fetch!(:idempotency_cache, idempotency_key, fn _ -> CommonAPI.post(user, params) end)
 279
 280     render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
 281   end
 282
 283   def delete_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 284     with {:ok, %Activity{}} <- CommonAPI.delete(id, user) do
 285       json(conn, %{})
 286     else
 287       _e ->
 288         conn
 289         |> put_status(403)
 290         |> json(%{error: "Can't delete this post"})
 291     end
 292   end
 293
 294   def reblog_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 295     with {:ok, announce, _activity} = CommonAPI.repeat(ap_id_or_id, user) do
 296       render(conn, StatusView, "status.json", %{activity: announce, for: user, as: :activity})
 297     end
 298   end
 299
 300   def unreblog_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 301     with {:ok, _, _, %{data: %{"id" => id}}} = CommonAPI.unrepeat(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 fav_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 308     with {:ok, _fav, %{data: %{"id" => id}}} = CommonAPI.favorite(ap_id_or_id, user),
 309          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
 310       render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
 311     end
 312   end
 313
 314   def unfav_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 315     with {:ok, _, _, %{data: %{"id" => id}}} = CommonAPI.unfavorite(ap_id_or_id, user),
 316          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
 317       render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
 318     end
 319   end
 320
 321   def notifications(%{assigns: %{user: user}} = conn, params) do
 322     notifications = Notification.for_user(user, params)
 323
 324     result =
 325       Enum.map(notifications, fn x ->
 326         render_notification(user, x)
 327       end)
 328       |> Enum.filter(& &1)
 329
 330     conn
 331     |> add_link_headers(:notifications, notifications)
 332     |> json(result)
 333   end
 334
 335   def get_notification(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
 336     with {:ok, notification} <- Notification.get(user, id) do
 337       json(conn, render_notification(user, notification))
 338     else
 339       {:error, reason} ->
 340         conn
 341         |> put_resp_content_type("application/json")
 342         |> send_resp(403, Jason.encode!(%{"error" => reason}))
 343     end
 344   end
 345
 346   def clear_notifications(%{assigns: %{user: user}} = conn, _params) do
 347     Notification.clear(user)
 348     json(conn, %{})
 349   end
 350
 351   def dismiss_notification(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
 352     with {:ok, _notif} <- Notification.dismiss(user, id) do
 353       json(conn, %{})
 354     else
 355       {:error, reason} ->
 356         conn
 357         |> put_resp_content_type("application/json")
 358         |> send_resp(403, Jason.encode!(%{"error" => reason}))
 359     end
 360   end
 361
 362   def relationships(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 363     id = List.wrap(id)
 364     q = from(u in User, where: u.id in ^id)
 365     targets = Repo.all(q)
 366     render(conn, AccountView, "relationships.json", %{user: user, targets: targets})
 367   end
 368
 369   def upload(%{assigns: %{user: _}} = conn, %{"file" => file}) do
 370     with {:ok, object} <- ActivityPub.upload(file) do
 371       data =
 372         object.data
 373         |> Map.put("id", object.id)
 374
 375       render(conn, StatusView, "attachment.json", %{attachment: data})
 376     end
 377   end
 378
 379   def favourited_by(conn, %{"id" => id}) do
 380     with %Activity{data: %{"object" => %{"likes" => likes}}} <- Repo.get(Activity, id) do
 381       q = from(u in User, where: u.ap_id in ^likes)
 382       users = Repo.all(q)
 383       render(conn, AccountView, "accounts.json", %{users: users, as: :user})
 384     else
 385       _ -> json(conn, [])
 386     end
 387   end
 388
 389   def reblogged_by(conn, %{"id" => id}) do
 390     with %Activity{data: %{"object" => %{"announcements" => announces}}} <- Repo.get(Activity, id) do
 391       q = from(u in User, where: u.ap_id in ^announces)
 392       users = Repo.all(q)
 393       render(conn, AccountView, "accounts.json", %{users: users, as: :user})
 394     else
 395       _ -> json(conn, [])
 396     end
 397   end
 398
 399   def hashtag_timeline(%{assigns: %{user: user}} = conn, params) do
 400     params =
 401       params
 402       |> Map.put("type", "Create")
 403       |> Map.put("local_only", !!params["local"])
 404       |> Map.put("blocking_user", user)
 405
 406     activities =
 407       ActivityPub.fetch_public_activities(params)
 408       |> Enum.reverse()
 409
 410     conn
 411     |> add_link_headers(:hashtag_timeline, activities, params["tag"])
 412     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 413   end
 414
 415   # TODO: Pagination
 416   def followers(conn, %{"id" => id}) do
 417     with %User{} = user <- Repo.get(User, id),
 418          {:ok, followers} <- User.get_followers(user) do
 419       render(conn, AccountView, "accounts.json", %{users: followers, as: :user})
 420     end
 421   end
 422
 423   def following(conn, %{"id" => id}) do
 424     with %User{} = user <- Repo.get(User, id),
 425          {:ok, followers} <- User.get_friends(user) do
 426       render(conn, AccountView, "accounts.json", %{users: followers, as: :user})
 427     end
 428   end
 429
 430   def follow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
 431     with %User{} = followed <- Repo.get(User, id),
 432          {:ok, follower} <- User.maybe_direct_follow(follower, followed),
 433          {:ok, _activity} <- ActivityPub.follow(follower, followed) do
 434       render(conn, AccountView, "relationship.json", %{user: follower, target: followed})
 435     else
 436       {:error, message} ->
 437         conn
 438         |> put_resp_content_type("application/json")
 439         |> send_resp(403, Jason.encode!(%{"error" => message}))
 440     end
 441   end
 442
 443   def follow(%{assigns: %{user: follower}} = conn, %{"uri" => uri}) do
 444     with %User{} = followed <- Repo.get_by(User, nickname: uri),
 445          {:ok, follower} <- User.maybe_direct_follow(follower, followed),
 446          {:ok, _activity} <- ActivityPub.follow(follower, followed) do
 447       render(conn, AccountView, "account.json", %{user: followed})
 448     else
 449       {:error, message} ->
 450         conn
 451         |> put_resp_content_type("application/json")
 452         |> send_resp(403, Jason.encode!(%{"error" => message}))
 453     end
 454   end
 455
 456   def unfollow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
 457     with %User{} = followed <- Repo.get(User, id),
 458          {:ok, _activity} <- ActivityPub.unfollow(follower, followed),
 459          {:ok, follower, _} <- User.unfollow(follower, followed) do
 460       render(conn, AccountView, "relationship.json", %{user: follower, target: followed})
 461     end
 462   end
 463
 464   def block(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
 465     with %User{} = blocked <- Repo.get(User, id),
 466          {:ok, blocker} <- User.block(blocker, blocked),
 467          {:ok, _activity} <- ActivityPub.block(blocker, blocked) do
 468       render(conn, AccountView, "relationship.json", %{user: blocker, target: blocked})
 469     else
 470       {:error, message} ->
 471         conn
 472         |> put_resp_content_type("application/json")
 473         |> send_resp(403, Jason.encode!(%{"error" => message}))
 474     end
 475   end
 476
 477   def unblock(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
 478     with %User{} = blocked <- Repo.get(User, id),
 479          {:ok, blocker} <- User.unblock(blocker, blocked),
 480          {:ok, _activity} <- ActivityPub.unblock(blocker, blocked) do
 481       render(conn, AccountView, "relationship.json", %{user: blocker, target: blocked})
 482     else
 483       {:error, message} ->
 484         conn
 485         |> put_resp_content_type("application/json")
 486         |> send_resp(403, Jason.encode!(%{"error" => message}))
 487     end
 488   end
 489
 490   # TODO: Use proper query
 491   def blocks(%{assigns: %{user: user}} = conn, _) do
 492     with blocked_users <- user.info["blocks"] || [],
 493          accounts <- Enum.map(blocked_users, fn ap_id -> User.get_cached_by_ap_id(ap_id) end) do
 494       res = AccountView.render("accounts.json", users: accounts, for: user, as: :user)
 495       json(conn, res)
 496     end
 497   end
 498
 499   def search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
 500     accounts = User.search(query, params["resolve"] == "true")
 501
 502     fetched =
 503       if Regex.match?(~r/https?:/, query) do
 504         with {:ok, activities} <- OStatus.fetch_activity_from_url(query) do
 505           activities
 506           |> Enum.filter(fn
 507             %{data: %{"type" => "Create"}} -> true
 508             _ -> false
 509           end)
 510         else
 511           _e -> []
 512         end
 513       end || []
 514
 515     q =
 516       from(
 517         a in Activity,
 518         where: fragment("?->>'type' = 'Create'", a.data),
 519         where: "https://www.w3.org/ns/activitystreams#Public" in a.recipients,
 520         where:
 521           fragment(
 522             "to_tsvector('english', ?->'object'->>'content') @@ plainto_tsquery('english', ?)",
 523             a.data,
 524             ^query
 525           ),
 526         limit: 20,
 527         order_by: [desc: :id]
 528       )
 529
 530     statuses = Repo.all(q) ++ fetched
 531
 532     tags =
 533       String.split(query)
 534       |> Enum.uniq()
 535       |> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
 536       |> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
 537
 538     res = %{
 539       "accounts" => AccountView.render("accounts.json", users: accounts, for: user, as: :user),
 540       "statuses" =>
 541         StatusView.render("index.json", activities: statuses, for: user, as: :activity),
 542       "hashtags" => tags
 543     }
 544
 545     json(conn, res)
 546   end
 547
 548   def account_search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
 549     accounts = User.search(query, params["resolve"] == "true")
 550
 551     res = AccountView.render("accounts.json", users: accounts, for: user, as: :user)
 552
 553     json(conn, res)
 554   end
 555
 556   def favourites(%{assigns: %{user: user}} = conn, _) do
 557     params =
 558       %{}
 559       |> Map.put("type", "Create")
 560       |> Map.put("favorited_by", user.ap_id)
 561       |> Map.put("blocking_user", user)
 562
 563     activities =
 564       ActivityPub.fetch_public_activities(params)
 565       |> Enum.reverse()
 566
 567     conn
 568     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 569   end
 570
 571   def get_lists(%{assigns: %{user: user}} = conn, opts) do
 572     lists = Pleroma.List.for_user(user, opts)
 573     res = ListView.render("lists.json", lists: lists)
 574     json(conn, res)
 575   end
 576
 577   def get_list(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 578     with %Pleroma.List{} = list <- Pleroma.List.get(id, user) do
 579       res = ListView.render("list.json", list: list)
 580       json(conn, res)
 581     else
 582       _e -> json(conn, "error")
 583     end
 584   end
 585
 586   def delete_list(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 587     with %Pleroma.List{} = list <- Pleroma.List.get(id, user),
 588          {:ok, _list} <- Pleroma.List.delete(list) do
 589       json(conn, %{})
 590     else
 591       _e ->
 592         json(conn, "error")
 593     end
 594   end
 595
 596   def create_list(%{assigns: %{user: user}} = conn, %{"title" => title}) do
 597     with {:ok, %Pleroma.List{} = list} <- Pleroma.List.create(title, user) do
 598       res = ListView.render("list.json", list: list)
 599       json(conn, res)
 600     end
 601   end
 602
 603   def add_to_list(%{assigns: %{user: user}} = conn, %{"id" => id, "account_ids" => accounts}) do
 604     accounts
 605     |> Enum.each(fn account_id ->
 606       with %Pleroma.List{} = list <- Pleroma.List.get(id, user),
 607            %User{} = followed <- Repo.get(User, account_id) do
 608         Pleroma.List.follow(list, followed)
 609       end
 610     end)
 611
 612     json(conn, %{})
 613   end
 614
 615   def remove_from_list(%{assigns: %{user: user}} = conn, %{"id" => id, "account_ids" => accounts}) do
 616     accounts
 617     |> Enum.each(fn account_id ->
 618       with %Pleroma.List{} = list <- Pleroma.List.get(id, user),
 619            %User{} = followed <- Repo.get(Pleroma.User, account_id) do
 620         Pleroma.List.unfollow(list, followed)
 621       end
 622     end)
 623
 624     json(conn, %{})
 625   end
 626
 627   def list_accounts(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 628     with %Pleroma.List{} = list <- Pleroma.List.get(id, user),
 629          {:ok, users} = Pleroma.List.get_following(list) do
 630       render(conn, AccountView, "accounts.json", %{users: users, as: :user})
 631     end
 632   end
 633
 634   def rename_list(%{assigns: %{user: user}} = conn, %{"id" => id, "title" => title}) do
 635     with %Pleroma.List{} = list <- Pleroma.List.get(id, user),
 636          {:ok, list} <- Pleroma.List.rename(list, title) do
 637       res = ListView.render("list.json", list: list)
 638       json(conn, res)
 639     else
 640       _e ->
 641         json(conn, "error")
 642     end
 643   end
 644
 645   def list_timeline(%{assigns: %{user: user}} = conn, %{"list_id" => id} = params) do
 646     with %Pleroma.List{title: title, following: following} <- Pleroma.List.get(id, user) do
 647       params =
 648         params
 649         |> Map.put("type", "Create")
 650         |> Map.put("blocking_user", user)
 651
 652       # adding title is a hack to not make empty lists function like a public timeline
 653       activities =
 654         ActivityPub.fetch_activities([title | following], params)
 655         |> Enum.reverse()
 656
 657       conn
 658       |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 659     else
 660       _e ->
 661         conn
 662         |> put_status(403)
 663         |> json(%{error: "Error."})
 664     end
 665   end
 666
 667   def index(%{assigns: %{user: user}} = conn, _params) do
 668     token =
 669       conn
 670       |> get_session(:oauth_token)
 671
 672     if user && token do
 673       mastodon_emoji = mastodonized_emoji()
 674       accounts = Map.put(%{}, user.id, AccountView.render("account.json", %{user: user}))
 675
 676       initial_state =
 677         %{
 678           meta: %{
 679             streaming_api_base_url:
 680               String.replace(Pleroma.Web.Endpoint.static_url(), "http", "ws"),
 681             access_token: token,
 682             locale: "en",
 683             domain: Pleroma.Web.Endpoint.host(),
 684             admin: "1",
 685             me: "#{user.id}",
 686             unfollow_modal: false,
 687             boost_modal: false,
 688             delete_modal: true,
 689             auto_play_gif: false,
 690             reduce_motion: false
 691           },
 692           compose: %{
 693             me: "#{user.id}",
 694             default_privacy: "public",
 695             default_sensitive: false
 696           },
 697           media_attachments: %{
 698             accept_content_types: [
 699               ".jpg",
 700               ".jpeg",
 701               ".png",
 702               ".gif",
 703               ".webm",
 704               ".mp4",
 705               ".m4v",
 706               "image\/jpeg",
 707               "image\/png",
 708               "image\/gif",
 709               "video\/webm",
 710               "video\/mp4"
 711             ]
 712           },
 713           settings:
 714             Map.get(user.info, "settings") ||
 715               %{
 716                 onboarded: true,
 717                 home: %{
 718                   shows: %{
 719                     reblog: true,
 720                     reply: true
 721                   }
 722                 },
 723                 notifications: %{
 724                   alerts: %{
 725                     follow: true,
 726                     favourite: true,
 727                     reblog: true,
 728                     mention: true
 729                   },
 730                   shows: %{
 731                     follow: true,
 732                     favourite: true,
 733                     reblog: true,
 734                     mention: true
 735                   },
 736                   sounds: %{
 737                     follow: true,
 738                     favourite: true,
 739                     reblog: true,
 740                     mention: true
 741                   }
 742                 }
 743               },
 744           push_subscription: nil,
 745           accounts: accounts,
 746           custom_emojis: mastodon_emoji,
 747           char_limit: Keyword.get(@instance, :limit)
 748         }
 749         |> Jason.encode!()
 750
 751       conn
 752       |> put_layout(false)
 753       |> render(MastodonView, "index.html", %{initial_state: initial_state})
 754     else
 755       conn
 756       |> redirect(to: "/web/login")
 757     end
 758   end
 759
 760   def put_settings(%{assigns: %{user: user}} = conn, %{"data" => settings} = _params) do
 761     with new_info <- Map.put(user.info, "settings", settings),
 762          change <- User.info_changeset(user, %{info: new_info}),
 763          {:ok, _user} <- User.update_and_set_cache(change) do
 764       conn
 765       |> json(%{})
 766     else
 767       e ->
 768         conn
 769         |> json(%{error: inspect(e)})
 770     end
 771   end
 772
 773   def login(conn, _) do
 774     conn
 775     |> render(MastodonView, "login.html", %{error: false})
 776   end
 777
 778   defp get_or_make_app() do
 779     with %App{} = app <- Repo.get_by(App, client_name: "Mastodon-Local") do
 780       {:ok, app}
 781     else
 782       _e ->
 783         cs =
 784           App.register_changeset(%App{}, %{
 785             client_name: "Mastodon-Local",
 786             redirect_uris: ".",
 787             scopes: "read,write,follow"
 788           })
 789
 790         Repo.insert(cs)
 791     end
 792   end
 793
 794   def login_post(conn, %{"authorization" => %{"name" => name, "password" => password}}) do
 795     with %User{} = user <- User.get_by_nickname_or_email(name),
 796          true <- Pbkdf2.checkpw(password, user.password_hash),
 797          {:ok, app} <- get_or_make_app(),
 798          {:ok, auth} <- Authorization.create_authorization(app, user),
 799          {:ok, token} <- Token.exchange_token(app, auth) do
 800       conn
 801       |> put_session(:oauth_token, token.token)
 802       |> redirect(to: "/web/getting-started")
 803     else
 804       _e ->
 805         conn
 806         |> render(MastodonView, "login.html", %{error: "Wrong username or password"})
 807     end
 808   end
 809
 810   def logout(conn, _) do
 811     conn
 812     |> clear_session
 813     |> redirect(to: "/")
 814   end
 815
 816   def relationship_noop(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 817     Logger.debug("Unimplemented, returning unmodified relationship")
 818
 819     with %User{} = target <- Repo.get(User, id) do
 820       render(conn, AccountView, "relationship.json", %{user: user, target: target})
 821     end
 822   end
 823
 824   def empty_array(conn, _) do
 825     Logger.debug("Unimplemented, returning an empty array")
 826     json(conn, [])
 827   end
 828
 829   def empty_object(conn, _) do
 830     Logger.debug("Unimplemented, returning an empty object")
 831     json(conn, %{})
 832   end
 833
 834   def render_notification(user, %{id: id, activity: activity, inserted_at: created_at} = _params) do
 835     actor = User.get_cached_by_ap_id(activity.data["actor"])
 836
 837     created_at =
 838       NaiveDateTime.to_iso8601(created_at)
 839       |> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
 840
 841     case activity.data["type"] do
 842       "Create" ->
 843         %{
 844           id: id,
 845           type: "mention",
 846           created_at: created_at,
 847           account: AccountView.render("account.json", %{user: actor}),
 848           status: StatusView.render("status.json", %{activity: activity, for: user})
 849         }
 850
 851       "Like" ->
 852         liked_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
 853
 854         %{
 855           id: id,
 856           type: "favourite",
 857           created_at: created_at,
 858           account: AccountView.render("account.json", %{user: actor}),
 859           status: StatusView.render("status.json", %{activity: liked_activity, for: user})
 860         }
 861
 862       "Announce" ->
 863         announced_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
 864
 865         %{
 866           id: id,
 867           type: "reblog",
 868           created_at: created_at,
 869           account: AccountView.render("account.json", %{user: actor}),
 870           status: StatusView.render("status.json", %{activity: announced_activity, for: user})
 871         }
 872
 873       "Follow" ->
 874         %{
 875           id: id,
 876           type: "follow",
 877           created_at: created_at,
 878           account: AccountView.render("account.json", %{user: actor})
 879         }
 880
 881       _ ->
 882         nil
 883     end
 884   end
 885 end