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   @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(Web.base_url(), ["http", "https"], "wss")
 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: user}} = conn, params) do
 208     with %User{ap_id: ap_id} <- Repo.get(User, params["id"]) do
 209       params =
 210         params
 211         |> Map.put("type", ["Create", "Announce"])
 212         |> Map.put("actor_id", ap_id)
 213         |> Map.put("whole_db", true)
 214
 215       if params["pinned"] == "true" do
 216         # Since Pleroma has no "pinned" posts feature, we'll just set an empty list here
 217         activities = []
 218       else
 219         activities =
 220          ActivityPub.fetch_public_activities(params)
 221          |> Enum.reverse()
 222       end
 223
 224       conn
 225       |> add_link_headers(:user_statuses, activities, params["id"])
 226       |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 227     end
 228   end
 229
 230   def get_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 231     with %Activity{} = activity <- Repo.get(Activity, id),
 232          true <- ActivityPub.visible_for_user?(activity, user) do
 233       render(conn, StatusView, "status.json", %{activity: activity, for: user})
 234     end
 235   end
 236
 237   def get_context(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 238     with %Activity{} = activity <- Repo.get(Activity, id),
 239          activities <-
 240            ActivityPub.fetch_activities_for_context(activity.data["context"], %{
 241              "blocking_user" => user,
 242              "user" => user
 243            }),
 244          activities <-
 245            activities |> Enum.filter(fn %{id: aid} -> to_string(aid) != to_string(id) end),
 246          activities <-
 247            activities |> Enum.filter(fn %{data: %{"type" => type}} -> type == "Create" end),
 248          grouped_activities <- Enum.group_by(activities, fn %{id: id} -> id < activity.id end) do
 249       result = %{
 250         ancestors:
 251           StatusView.render(
 252             "index.json",
 253             for: user,
 254             activities: grouped_activities[true] || [],
 255             as: :activity
 256           )
 257           |> Enum.reverse(),
 258         descendants:
 259           StatusView.render(
 260             "index.json",
 261             for: user,
 262             activities: grouped_activities[false] || [],
 263             as: :activity
 264           )
 265           |> Enum.reverse()
 266       }
 267
 268       json(conn, result)
 269     end
 270   end
 271
 272   def post_status(%{assigns: %{user: user}} = conn, %{"status" => _} = params) do
 273     params =
 274       params
 275       |> Map.put("in_reply_to_status_id", params["in_reply_to_id"])
 276       |> Map.put("no_attachment_links", true)
 277
 278     {:ok, activity} = CommonAPI.post(user, params)
 279     render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
 280   end
 281
 282   def delete_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 283     with {:ok, %Activity{}} <- CommonAPI.delete(id, user) do
 284       json(conn, %{})
 285     else
 286       _e ->
 287         conn
 288         |> put_status(403)
 289         |> json(%{error: "Can't delete this post"})
 290     end
 291   end
 292
 293   def reblog_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 294     with {:ok, announce, _activity} = CommonAPI.repeat(ap_id_or_id, user) do
 295       render(conn, StatusView, "status.json", %{activity: announce, for: user, as: :activity})
 296     end
 297   end
 298
 299   def unreblog_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 300     with {:ok, announce, _activity} = CommonAPI.unrepeat(ap_id_or_id, user) do
 301       render(conn, StatusView, "status.json", %{activity: announce, for: user, as: :activity})
 302     end
 303   end
 304
 305   def fav_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 306     with {:ok, _fav, %{data: %{"id" => id}}} = CommonAPI.favorite(ap_id_or_id, user),
 307          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
 308       render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
 309     end
 310   end
 311
 312   def unfav_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
 313     with {:ok, %{data: %{"id" => id}}} = CommonAPI.unfavorite(ap_id_or_id, user),
 314          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
 315       render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
 316     end
 317   end
 318
 319   def notifications(%{assigns: %{user: user}} = conn, params) do
 320     notifications = Notification.for_user(user, params)
 321
 322     result =
 323       Enum.map(notifications, fn x ->
 324         render_notification(user, x)
 325       end)
 326       |> Enum.filter(& &1)
 327
 328     conn
 329     |> add_link_headers(:notifications, notifications)
 330     |> json(result)
 331   end
 332
 333   def get_notification(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
 334     with {:ok, notification} <- Notification.get(user, id) do
 335       json(conn, render_notification(user, notification))
 336     else
 337       {:error, reason} ->
 338         conn
 339         |> put_resp_content_type("application/json")
 340         |> send_resp(403, Jason.encode!(%{"error" => reason}))
 341     end
 342   end
 343
 344   def clear_notifications(%{assigns: %{user: user}} = conn, _params) do
 345     Notification.clear(user)
 346     json(conn, %{})
 347   end
 348
 349   def dismiss_notification(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
 350     with {:ok, _notif} <- Notification.dismiss(user, id) do
 351       json(conn, %{})
 352     else
 353       {:error, reason} ->
 354         conn
 355         |> put_resp_content_type("application/json")
 356         |> send_resp(403, Jason.encode!(%{"error" => reason}))
 357     end
 358   end
 359
 360   def relationships(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 361     id = List.wrap(id)
 362     q = from(u in User, where: u.id in ^id)
 363     targets = Repo.all(q)
 364     render(conn, AccountView, "relationships.json", %{user: user, targets: targets})
 365   end
 366
 367   def upload(%{assigns: %{user: _}} = conn, %{"file" => file}) do
 368     with {:ok, object} <- ActivityPub.upload(file) do
 369       data =
 370         object.data
 371         |> Map.put("id", object.id)
 372
 373       render(conn, StatusView, "attachment.json", %{attachment: data})
 374     end
 375   end
 376
 377   def favourited_by(conn, %{"id" => id}) do
 378     with %Activity{data: %{"object" => %{"likes" => likes}}} <- Repo.get(Activity, id) do
 379       q = from(u in User, where: u.ap_id in ^likes)
 380       users = Repo.all(q)
 381       render(conn, AccountView, "accounts.json", %{users: users, as: :user})
 382     else
 383       _ -> json(conn, [])
 384     end
 385   end
 386
 387   def reblogged_by(conn, %{"id" => id}) do
 388     with %Activity{data: %{"object" => %{"announcements" => announces}}} <- Repo.get(Activity, id) do
 389       q = from(u in User, where: u.ap_id in ^announces)
 390       users = Repo.all(q)
 391       render(conn, AccountView, "accounts.json", %{users: users, as: :user})
 392     else
 393       _ -> json(conn, [])
 394     end
 395   end
 396
 397   def hashtag_timeline(%{assigns: %{user: user}} = conn, params) do
 398     params =
 399       params
 400       |> Map.put("type", "Create")
 401       |> Map.put("local_only", !!params["local"])
 402       |> Map.put("blocking_user", user)
 403
 404     activities =
 405       ActivityPub.fetch_public_activities(params)
 406       |> Enum.reverse()
 407
 408     conn
 409     |> add_link_headers(:hashtag_timeline, activities, params["tag"])
 410     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 411   end
 412
 413   # TODO: Pagination
 414   def followers(conn, %{"id" => id}) do
 415     with %User{} = user <- Repo.get(User, id),
 416          {:ok, followers} <- User.get_followers(user) do
 417       render(conn, AccountView, "accounts.json", %{users: followers, as: :user})
 418     end
 419   end
 420
 421   def following(conn, %{"id" => id}) do
 422     with %User{} = user <- Repo.get(User, id),
 423          {:ok, followers} <- User.get_friends(user) do
 424       render(conn, AccountView, "accounts.json", %{users: followers, as: :user})
 425     end
 426   end
 427
 428   def follow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
 429     with %User{} = followed <- Repo.get(User, id),
 430          {:ok, follower} <- User.follow(follower, followed),
 431          {:ok, _activity} <- ActivityPub.follow(follower, followed) do
 432       render(conn, AccountView, "relationship.json", %{user: follower, target: followed})
 433     else
 434       {:error, message} ->
 435         conn
 436         |> put_resp_content_type("application/json")
 437         |> send_resp(403, Jason.encode!(%{"error" => message}))
 438     end
 439   end
 440
 441   def follow(%{assigns: %{user: follower}} = conn, %{"uri" => uri}) do
 442     with %User{} = followed <- Repo.get_by(User, nickname: uri),
 443          {:ok, follower} <- User.follow(follower, followed),
 444          {:ok, _activity} <- ActivityPub.follow(follower, followed) do
 445       render(conn, AccountView, "account.json", %{user: followed})
 446     else
 447       {:error, message} ->
 448         conn
 449         |> put_resp_content_type("application/json")
 450         |> send_resp(403, Jason.encode!(%{"error" => message}))
 451     end
 452   end
 453
 454   # TODO: Clean up and unify
 455   def unfollow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
 456     with %User{} = followed <- Repo.get(User, id),
 457          {:ok, follower, follow_activity} <- User.unfollow(follower, followed),
 458          {:ok, _activity} <-
 459            ActivityPub.insert(%{
 460              "type" => "Undo",
 461              "actor" => follower.ap_id,
 462              # get latest Follow for these users
 463              "object" => follow_activity.data["id"]
 464            }) do
 465       render(conn, AccountView, "relationship.json", %{user: follower, target: followed})
 466     end
 467   end
 468
 469   def block(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
 470     with %User{} = blocked <- Repo.get(User, id),
 471          {:ok, blocker} <- User.block(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   def unblock(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
 482     with %User{} = blocked <- Repo.get(User, id),
 483          {:ok, blocker} <- User.unblock(blocker, blocked) do
 484       render(conn, AccountView, "relationship.json", %{user: blocker, target: blocked})
 485     else
 486       {:error, message} ->
 487         conn
 488         |> put_resp_content_type("application/json")
 489         |> send_resp(403, Jason.encode!(%{"error" => message}))
 490     end
 491   end
 492
 493   # TODO: Use proper query
 494   def blocks(%{assigns: %{user: user}} = conn, _) do
 495     with blocked_users <- user.info["blocks"] || [],
 496          accounts <- Enum.map(blocked_users, fn ap_id -> User.get_cached_by_ap_id(ap_id) end) do
 497       res = AccountView.render("accounts.json", users: accounts, for: user, as: :user)
 498       json(conn, res)
 499     end
 500   end
 501
 502   def search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
 503     accounts = User.search(query, params["resolve"] == "true")
 504
 505     fetched =
 506       if Regex.match?(~r/https?:/, query) do
 507         with {:ok, activities} <- OStatus.fetch_activity_from_url(query) do
 508           activities
 509           |> Enum.filter(fn
 510             %{data: %{"type" => "Create"}} -> true
 511             _ -> false
 512           end)
 513         else
 514           _e -> []
 515         end
 516       end || []
 517
 518     q =
 519       from(
 520         a in Activity,
 521         where: fragment("?->>'type' = 'Create'", a.data),
 522         where: "https://www.w3.org/ns/activitystreams#Public" in a.recipients,
 523         where:
 524           fragment(
 525             "to_tsvector('english', ?->'object'->>'content') @@ plainto_tsquery('english', ?)",
 526             a.data,
 527             ^query
 528           ),
 529         limit: 20,
 530         order_by: [desc: :inserted_at]
 531       )
 532
 533     statuses = Repo.all(q) ++ fetched
 534
 535     tags =
 536       String.split(query)
 537       |> Enum.uniq()
 538       |> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
 539       |> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
 540
 541     res = %{
 542       "accounts" => AccountView.render("accounts.json", users: accounts, for: user, as: :user),
 543       "statuses" =>
 544         StatusView.render("index.json", activities: statuses, for: user, as: :activity),
 545       "hashtags" => tags
 546     }
 547
 548     json(conn, res)
 549   end
 550
 551   def account_search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
 552     accounts = User.search(query, params["resolve"] == "true")
 553
 554     res = AccountView.render("accounts.json", users: accounts, for: user, as: :user)
 555
 556     json(conn, res)
 557   end
 558
 559   def favourites(%{assigns: %{user: user}} = conn, _) do
 560     params =
 561       %{}
 562       |> Map.put("type", "Create")
 563       |> Map.put("favorited_by", user.ap_id)
 564       |> Map.put("blocking_user", user)
 565
 566     activities =
 567       ActivityPub.fetch_public_activities(params)
 568       |> Enum.reverse()
 569
 570     conn
 571     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
 572   end
 573
 574   def index(%{assigns: %{user: user}} = conn, _params) do
 575     token =
 576       conn
 577       |> get_session(:oauth_token)
 578
 579     if user && token do
 580       mastodon_emoji = mastodonized_emoji()
 581       accounts = Map.put(%{}, user.id, AccountView.render("account.json", %{user: user}))
 582
 583       initial_state =
 584         %{
 585           meta: %{
 586             streaming_api_base_url:
 587               String.replace(Pleroma.Web.Endpoint.static_url(), "http", "ws"),
 588             access_token: token,
 589             locale: "en",
 590             domain: Pleroma.Web.Endpoint.host(),
 591             admin: "1",
 592             me: "#{user.id}",
 593             unfollow_modal: false,
 594             boost_modal: false,
 595             delete_modal: true,
 596             auto_play_gif: false,
 597             reduce_motion: false
 598           },
 599           compose: %{
 600             me: "#{user.id}",
 601             default_privacy: "public",
 602             default_sensitive: false
 603           },
 604           media_attachments: %{
 605             accept_content_types: [
 606               ".jpg",
 607               ".jpeg",
 608               ".png",
 609               ".gif",
 610               ".webm",
 611               ".mp4",
 612               ".m4v",
 613               "image\/jpeg",
 614               "image\/png",
 615               "image\/gif",
 616               "video\/webm",
 617               "video\/mp4"
 618             ]
 619           },
 620           settings:
 621             Map.get(user.info, "settings") ||
 622               %{
 623                 onboarded: true,
 624                 home: %{
 625                   shows: %{
 626                     reblog: true,
 627                     reply: true
 628                   }
 629                 },
 630                 notifications: %{
 631                   alerts: %{
 632                     follow: true,
 633                     favourite: true,
 634                     reblog: true,
 635                     mention: true
 636                   },
 637                   shows: %{
 638                     follow: true,
 639                     favourite: true,
 640                     reblog: true,
 641                     mention: true
 642                   },
 643                   sounds: %{
 644                     follow: true,
 645                     favourite: true,
 646                     reblog: true,
 647                     mention: true
 648                   }
 649                 }
 650               },
 651           push_subscription: nil,
 652           accounts: accounts,
 653           custom_emojis: mastodon_emoji,
 654           char_limit: Keyword.get(@instance, :limit)
 655         }
 656         |> Jason.encode!()
 657
 658       conn
 659       |> put_layout(false)
 660       |> render(MastodonView, "index.html", %{initial_state: initial_state})
 661     else
 662       conn
 663       |> redirect(to: "/web/login")
 664     end
 665   end
 666
 667   def put_settings(%{assigns: %{user: user}} = conn, %{"data" => settings} = _params) do
 668     with new_info <- Map.put(user.info, "settings", settings),
 669          change <- User.info_changeset(user, %{info: new_info}),
 670          {:ok, _user} <- User.update_and_set_cache(change) do
 671       conn
 672       |> json(%{})
 673     else
 674       e ->
 675         conn
 676         |> json(%{error: inspect(e)})
 677     end
 678   end
 679
 680   def login(conn, _) do
 681     conn
 682     |> render(MastodonView, "login.html", %{error: false})
 683   end
 684
 685   defp get_or_make_app() do
 686     with %App{} = app <- Repo.get_by(App, client_name: "Mastodon-Local") do
 687       {:ok, app}
 688     else
 689       _e ->
 690         cs =
 691           App.register_changeset(%App{}, %{
 692             client_name: "Mastodon-Local",
 693             redirect_uris: ".",
 694             scopes: "read,write,follow"
 695           })
 696
 697         Repo.insert(cs)
 698     end
 699   end
 700
 701   def login_post(conn, %{"authorization" => %{"name" => name, "password" => password}}) do
 702     with %User{} = user <- User.get_cached_by_nickname(name),
 703          true <- Pbkdf2.checkpw(password, user.password_hash),
 704          {:ok, app} <- get_or_make_app(),
 705          {:ok, auth} <- Authorization.create_authorization(app, user),
 706          {:ok, token} <- Token.exchange_token(app, auth) do
 707       conn
 708       |> put_session(:oauth_token, token.token)
 709       |> redirect(to: "/web/getting-started")
 710     else
 711       _e ->
 712         conn
 713         |> render(MastodonView, "login.html", %{error: "Wrong username or password"})
 714     end
 715   end
 716
 717   def logout(conn, _) do
 718     conn
 719     |> clear_session
 720     |> redirect(to: "/")
 721   end
 722
 723   def relationship_noop(%{assigns: %{user: user}} = conn, %{"id" => id}) do
 724     Logger.debug("Unimplemented, returning unmodified relationship")
 725
 726     with %User{} = target <- Repo.get(User, id) do
 727       render(conn, AccountView, "relationship.json", %{user: user, target: target})
 728     end
 729   end
 730
 731   def empty_array(conn, _) do
 732     Logger.debug("Unimplemented, returning an empty array")
 733     json(conn, [])
 734   end
 735
 736   def empty_object(conn, _) do
 737     Logger.debug("Unimplemented, returning an empty object")
 738     json(conn, %{})
 739   end
 740
 741   def render_notification(user, %{id: id, activity: activity, inserted_at: created_at} = _params) do
 742     actor = User.get_cached_by_ap_id(activity.data["actor"])
 743
 744     created_at =
 745       NaiveDateTime.to_iso8601(created_at)
 746       |> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
 747
 748     case activity.data["type"] do
 749       "Create" ->
 750         %{
 751           id: id,
 752           type: "mention",
 753           created_at: created_at,
 754           account: AccountView.render("account.json", %{user: actor}),
 755           status: StatusView.render("status.json", %{activity: activity, for: user})
 756         }
 757
 758       "Like" ->
 759         liked_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
 760
 761         %{
 762           id: id,
 763           type: "favourite",
 764           created_at: created_at,
 765           account: AccountView.render("account.json", %{user: actor}),
 766           status: StatusView.render("status.json", %{activity: liked_activity, for: user})
 767         }
 768
 769       "Announce" ->
 770         announced_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
 771
 772         %{
 773           id: id,
 774           type: "reblog",
 775           created_at: created_at,
 776           account: AccountView.render("account.json", %{user: actor}),
 777           status: StatusView.render("status.json", %{activity: announced_activity, for: user})
 778         }
 779
 780       "Follow" ->
 781         %{
 782           id: id,
 783           type: "follow",
 784           created_at: created_at,
 785           account: AccountView.render("account.json", %{user: actor})
 786         }
 787
 788       _ ->
 789         nil
 790     end
 791   end
 792 end