Merge branch 'birth-dates' into 'develop'

Birth dates

See merge request pleroma/pleroma!3608

26 files changed, 423 insertions, 14 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6aaadca42..9e6e0fdf2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,6 +26,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Ability to log slow Ecto queries by configuring `:pleroma, :telemetry, :slow_queries_logging`
 - Added Phoenix LiveDashboard at `/phoenix/live_dashboard`
 - Added `/manifest.json` for progressive web apps.
+- MastoAPI: Support for `birthday` and `show_birthday` field in `/api/v1/accounts/update_credentials`.
+- Configuration: Add `birthday_required` and `birthday_min_age` settings to provide a way to require users to enter their birth date.
+- PleromaAPI: Add `GET /api/v1/pleroma/birthdays` API endpoint
 
 ### Fixed
 - Subscription(Bell) Notifications: Don't create from Pipeline Ingested replies
diff --git a/config/config.exs b/config/config.exs
index 8ac650f6a..5e82f203c 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -257,7 +257,9 @@ config :pleroma, :instance,
   password_reset_token_validity: 60 * 60 * 24,
   profile_directory: true,
   privileged_staff: false,
-  max_endorsed_users: 20
+  max_endorsed_users: 20,
+  birthday_required: false,
+  birthday_min_age: 0
 
 config :pleroma, :welcome,
   direct_message: [
diff --git a/config/description.exs b/config/description.exs
index 644c60a63..3f66877e4 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -957,6 +957,17 @@ config :pleroma, :config_description, [
         type: :boolean,
         description:
           "Let moderators access sensitive data (e.g. updating user credentials, get password reset token, delete users, index and read private statuses and chats)"
+      },
+      %{
+        key: :birthday_required,
+        type: :boolean,
+        description: "Require users to enter their birthday."
+      },
+      %{
+        key: :birthday_min_age,
+        type: :integer,
+        description:
+          "Minimum required age for users to create account. Only used if birthday is required."
       }
     ]
   },
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index ef5a02249..36177bda3 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -154,6 +154,8 @@ defmodule Pleroma.User do
     field(:pinned_objects, :map, default: %{})
     field(:is_suggested, :boolean, default: false)
     field(:last_status_at, :naive_datetime)
+    field(:birthday, :date)
+    field(:show_birthday, :boolean, default: false)
 
     embeds_one(
       :notification_settings,
@@ -470,7 +472,9 @@ defmodule Pleroma.User do
         :actor_type,
         :also_known_as,
         :accepts_chat_messages,
-        :pinned_objects
+        :pinned_objects,
+        :birthday,
+        :show_birthday
       ]
     )
     |> cast(params, [:name], empty_values: [])
@@ -531,9 +535,12 @@ defmodule Pleroma.User do
         :is_discoverable,
         :actor_type,
         :accepts_chat_messages,
-        :disclose_client
+        :disclose_client,
+        :birthday,
+        :show_birthday
       ]
     )
+    |> validate_min_age()
     |> unique_constraint(:nickname)
     |> validate_format(:nickname, local_nickname_regex())
     |> validate_length(:bio, max: bio_limit)
@@ -738,7 +745,8 @@ defmodule Pleroma.User do
       :password_confirmation,
       :emoji,
       :accepts_chat_messages,
-      :registration_reason
+      :registration_reason,
+      :birthday
     ])
     |> validate_required([:name, :nickname, :password, :password_confirmation])
     |> validate_confirmation(:password)
@@ -760,6 +768,8 @@ defmodule Pleroma.User do
     |> validate_length(:name, min: 1, max: name_limit)
     |> validate_length(:registration_reason, max: reason_limit)
     |> maybe_validate_required_email(opts[:external])
+    |> maybe_validate_required_birthday
+    |> validate_min_age()
     |> put_password_hash
     |> put_ap_id()
     |> unique_constraint(:ap_id)
@@ -776,6 +786,26 @@ defmodule Pleroma.User do
     end
   end
 
+  defp maybe_validate_required_birthday(changeset) do
+    if Config.get([:instance, :birthday_required]) do
+      validate_required(changeset, [:birthday])
+    else
+      changeset
+    end
+  end
+
+  defp validate_min_age(changeset) do
+    changeset
+    |> validate_change(:birthday, fn :birthday, birthday ->
+      valid? =
+        Date.utc_today()
+        |> Date.diff(birthday) >=
+          Config.get([:instance, :birthday_min_age])
+
+      if valid?, do: [], else: [birthday: "Invalid age"]
+    end)
+  end
+
   defp put_ap_id(changeset) do
     ap_id = ap_id(%User{nickname: get_field(changeset, :nickname)})
     put_change(changeset, :ap_id, ap_id)
@@ -2560,4 +2590,13 @@ defmodule Pleroma.User do
       _ -> {:error, user}
     end
   end
+
+  def get_friends_birthdays_query(%User{} = user, day, month) do
+    User.Query.build(%{
+      friends: user,
+      deactivated: false,
+      birthday_day: day,
+      birthday_month: month
+    })
+  end
 end
diff --git a/lib/pleroma/user/query.ex b/lib/pleroma/user/query.ex
index bf78cb32d..bd11d287c 100644
--- a/lib/pleroma/user/query.ex
+++ b/lib/pleroma/user/query.ex
@@ -59,7 +59,9 @@ defmodule Pleroma.User.Query do
             order_by: term(),
             select: term(),
             limit: pos_integer(),
-            actor_types: [String.t()]
+            actor_types: [String.t()],
+            birthday_day: pos_integer(),
+            birthday_month: pos_integer()
           }
           | map()
 
@@ -230,6 +232,20 @@ defmodule Pleroma.User.Query do
     |> where([u], not like(u.nickname, "internal.%"))
   end
 
+  defp compose_query({:birthday_day, day}, query) do
+    query
+    |> where([u], u.show_birthday == true)
+    |> where([u], not is_nil(u.birthday))
+    |> where([u], fragment("date_part('day', ?)", u.birthday) == ^day)
+  end
+
+  defp compose_query({:birthday_month, month}, query) do
+    query
+    |> where([u], u.show_birthday == true)
+    |> where([u], not is_nil(u.birthday))
+    |> where([u], fragment("date_part('month', ?)", u.birthday) == ^month)
+  end
+
   defp compose_query(_unsupported_param, query), do: query
 
   defp location_query(query, local) do
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 9ca44c532..e6475a2b7 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -1501,6 +1501,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         nil
       end
 
+    birthday =
+      if is_binary(data["vcard:bday"]) do
+        case Date.from_iso8601(data["vcard:bday"]) do
+          {:ok, date} -> date
+          {:error, _} -> nil
+        end
+      else
+        nil
+      end
+
+    show_birthday = !!birthday
+
     user_data = %{
       ap_id: data["id"],
       uri: get_actor_url(data["url"]),
@@ -1523,7 +1535,9 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
       inbox: data["inbox"],
       shared_inbox: shared_inbox,
       accepts_chat_messages: accepts_chat_messages,
-      pinned_objects: pinned_objects
+      pinned_objects: pinned_objects,
+      birthday: birthday,
+      show_birthday: show_birthday
     }
 
     # nickname can be nil because of virtual actors
diff --git a/lib/pleroma/web/activity_pub/views/user_view.ex b/lib/pleroma/web/activity_pub/views/user_view.ex
index 344da19d3..5ed08d7f6 100644
--- a/lib/pleroma/web/activity_pub/views/user_view.ex
+++ b/lib/pleroma/web/activity_pub/views/user_view.ex
@@ -92,6 +92,11 @@ defmodule Pleroma.Web.ActivityPub.UserView do
         %{}
       end
 
+    birthday =
+      if user.show_birthday,
+        do: user.birthday,
+        else: nil
+
     %{
       "id" => user.ap_id,
       "type" => user.actor_type,
@@ -116,7 +121,8 @@ defmodule Pleroma.Web.ActivityPub.UserView do
       # Note: key name is indeed "discoverable" (not an error)
       "discoverable" => user.is_discoverable,
       "capabilities" => capabilities,
-      "alsoKnownAs" => user.also_known_as
+      "alsoKnownAs" => user.also_known_as,
+      "vcard:bday" => birthday
     }
     |> Map.merge(maybe_make_image(&User.avatar_url/2, "icon", user))
     |> Map.merge(maybe_make_image(&User.banner_url/2, "image", user))
diff --git a/lib/pleroma/web/api_spec/operations/account_operation.ex b/lib/pleroma/web/api_spec/operations/account_operation.ex
index 768d3c720..03efa3c38 100644
--- a/lib/pleroma/web/api_spec/operations/account_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/account_operation.ex
@@ -543,6 +543,12 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
           type: :string,
           nullable: true,
           description: "Invite token required when the registrations aren't public"
+        },
+        birthday: %Schema{
+          type: :string,
+          nullable: true,
+          description: "User's birthday",
+          format: :date
         }
       },
       example: %{
@@ -720,7 +726,18 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
           description:
             "Discovery (listing, indexing) of this account by external services (search bots etc.) is allowed."
         },
-        actor_type: ActorType
+        actor_type: ActorType,
+        birthday: %Schema{
+          type: :string,
+          nullable: true,
+          description: "User's birthday",
+          format: :date
+        },
+        show_birthday: %Schema{
+          allOf: [BooleanLike],
+          nullable: true,
+          description: "User's birthday will be visible"
+        }
       },
       example: %{
         bot: false,
@@ -740,7 +757,9 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
         allow_following_move: false,
         also_known_as: ["https://foo.bar/users/foo"],
         discoverable: false,
-        actor_type: "Person"
+        actor_type: "Person",
+        show_birthday: false,
+        birthday: "2001-02-12"
       }
     }
   end
diff --git a/lib/pleroma/web/api_spec/operations/pleroma_account_operation.ex b/lib/pleroma/web/api_spec/operations/pleroma_account_operation.ex
index ed0db173e..23201a4ba 100644
--- a/lib/pleroma/web/api_spec/operations/pleroma_account_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/pleroma_account_operation.ex
@@ -4,6 +4,7 @@
 
 defmodule Pleroma.Web.ApiSpec.PleromaAccountOperation do
   alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
   alias Pleroma.Web.ApiSpec.AccountOperation
   alias Pleroma.Web.ApiSpec.Schemas.AccountRelationship
   alias Pleroma.Web.ApiSpec.Schemas.ApiError
@@ -112,6 +113,34 @@ defmodule Pleroma.Web.ApiSpec.PleromaAccountOperation do
     }
   end
 
+  def birthdays_operation do
+    %Operation{
+      tags: ["Retrieve account information"],
+      summary: "Birthday reminders",
+      description: "Birthday reminders about users you follow.",
+      operationId: "PleromaAPI.AccountController.birthdays",
+      parameters: [
+        Operation.parameter(
+          :day,
+          :query,
+          %Schema{type: :integer},
+          "Day of users' birthdays"
+        ),
+        Operation.parameter(
+          :month,
+          :query,
+          %Schema{type: :integer},
+          "Month of users' birthdays"
+        )
+      ],
+      security: [%{"oAuth" => ["read:accounts"]}],
+      responses: %{
+        200 =>
+          Operation.response("Accounts", "application/json", AccountOperation.array_of_accounts())
+      }
+    }
+  end
+
   defp id_param do
     Operation.parameter(:id, :path, FlakeID, "Account ID",
       example: "9umDrYheeY451cQnEe",
diff --git a/lib/pleroma/web/api_spec/schemas/account.ex b/lib/pleroma/web/api_spec/schemas/account.ex
index 548e70544..029c6f6cf 100644
--- a/lib/pleroma/web/api_spec/schemas/account.ex
+++ b/lib/pleroma/web/api_spec/schemas/account.ex
@@ -47,12 +47,14 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Account do
             description: "whether the user allows automatically follow moved following accounts"
           },
           background_image: %Schema{type: :string, nullable: true, format: :uri},
+          birthday: %Schema{type: :string, nullable: true, format: :date},
           chat_token: %Schema{type: :string},
           is_confirmed: %Schema{
             type: :boolean,
             description:
               "whether the user account is waiting on email confirmation to be activated"
           },
+          show_birthday: %Schema{type: :boolean, nullable: true},
           hide_favorites: %Schema{type: :boolean},
           hide_followers_count: %Schema{
             type: :boolean,
@@ -202,7 +204,8 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Account do
         },
         "settings_store" => %{
           "pleroma-fe" => %{}
-        }
+        },
+        "birthday" => "2001-02-12"
       },
       "source" => %{
         "fields" => [],
diff --git a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
index a90833bf0..8e6d49168 100644
--- a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
@@ -191,7 +191,8 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
         :skip_thread_containment,
         :allow_following_move,
         :also_known_as,
-        :accepts_chat_messages
+        :accepts_chat_messages,
+        :show_birthday
       ]
       |> Enum.reduce(%{}, fn key, acc ->
         Maps.put_if_present(acc, key, params[key], &{:ok, Params.truthy_param?(&1)})
@@ -219,6 +220,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
       |> Maps.put_if_present(:is_locked, params[:locked])
       # Note: param name is indeed :discoverable (not an error)
       |> Maps.put_if_present(:is_discoverable, params[:discoverable])
+      |> Maps.put_if_present(:birthday, params[:birthday])
 
     # What happens here:
     #
diff --git a/lib/pleroma/web/mastodon_api/views/account_view.ex b/lib/pleroma/web/mastodon_api/views/account_view.ex
index b964fdc54..e73d03f06 100644
--- a/lib/pleroma/web/mastodon_api/views/account_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/account_view.ex
@@ -297,7 +297,8 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
         skip_thread_containment: user.skip_thread_containment,
         background_image: image_url(user.background) |> MediaProxy.url(),
         accepts_chat_messages: user.accepts_chat_messages,
-        favicon: favicon
+        favicon: favicon,
+        birthday: user.birthday
       }
     }
     |> maybe_put_role(user, opts[:for])
@@ -311,6 +312,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
     |> maybe_put_unread_conversation_count(user, opts[:for])
     |> maybe_put_unread_notification_count(user, opts[:for])
     |> maybe_put_email_address(user, opts[:for])
+    |> maybe_show_birthday(user, opts[:for])
   end
 
   defp username_from_nickname(string) when is_binary(string) do
@@ -344,6 +346,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
     |> Kernel.put_in([:source, :privacy], user.default_scope)
     |> Kernel.put_in([:source, :pleroma, :show_role], user.show_role)
     |> Kernel.put_in([:source, :pleroma, :no_rich_text], user.no_rich_text)
+    |> Kernel.put_in([:source, :pleroma, :show_birthday], user.show_birthday)
   end
 
   defp maybe_put_settings(data, _, _, _), do: data
@@ -432,6 +435,20 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
 
   defp maybe_put_email_address(data, _, _), do: data
 
+  defp maybe_show_birthday(data, %User{id: user_id} = user, %User{id: user_id}) do
+    data
+    |> Kernel.put_in([:pleroma, :birthday], user.birthday)
+  end
+
+  defp maybe_show_birthday(data, %User{show_birthday: true} = user, _) do
+    data
+    |> Kernel.put_in([:pleroma, :birthday], user.birthday)
+  end
+
+  defp maybe_show_birthday(data, _, _) do
+    data
+  end
+
   defp image_url(%{"url" => [%{"href" => href} | _]}), do: href
   defp image_url(_), do: nil
 end
diff --git a/lib/pleroma/web/mastodon_api/views/instance_view.ex b/lib/pleroma/web/mastodon_api/views/instance_view.ex
index cbed5fba9..fa6c20a30 100644
--- a/lib/pleroma/web/mastodon_api/views/instance_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/instance_view.ex
@@ -46,7 +46,9 @@ defmodule Pleroma.Web.MastodonAPI.InstanceView do
           federation: federation(),
           fields_limits: fields_limits(),
           post_formats: Config.get([:instance, :allowed_post_formats]),
-          privileged_staff: Config.get([:instance, :privileged_staff])
+          privileged_staff: Config.get([:instance, :privileged_staff]),
+          birthday_required: Config.get([:instance, :birthday_required]),
+          birthday_min_age: Config.get([:instance, :birthday_min_age])
         },
         stats: %{mau: Pleroma.User.active_user_count()},
         vapid_public_key: Keyword.get(Pleroma.Web.Push.vapid_config(), :public_key)
diff --git a/lib/pleroma/web/pleroma_api/controllers/account_controller.ex b/lib/pleroma/web/pleroma_api/controllers/account_controller.ex
index 66a8d1c1c..d78ebbe2e 100644
--- a/lib/pleroma/web/pleroma_api/controllers/account_controller.ex
+++ b/lib/pleroma/web/pleroma_api/controllers/account_controller.ex
@@ -51,6 +51,11 @@ defmodule Pleroma.Web.PleromaAPI.AccountController do
     when action == :endorsements
   )
 
+  plug(
+    OAuthScopesPlug,
+    %{scopes: ["read:accounts"]} when action == :birthdays
+  )
+
   plug(RateLimiter, [name: :account_confirmation_resend] when action == :confirmation_resend)
 
   plug(
@@ -137,4 +142,18 @@ defmodule Pleroma.Web.PleromaAPI.AccountController do
       {:error, message} -> json_response(conn, :forbidden, %{error: message})
     end
   end
+
+  @doc "GET /api/v1/pleroma/birthdays"
+  def birthdays(%{assigns: %{user: %User{} = user}} = conn, %{day: day, month: month} = _params) do
+    birthdays =
+      User.get_friends_birthdays_query(user, day, month)
+      |> Pleroma.Repo.all()
+
+    conn
+    |> render("index.json",
+      for: user,
+      users: birthdays,
+      as: :user
+    )
+  end
 end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 67c1a3e5c..26706a6b8 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -448,6 +448,8 @@ defmodule Pleroma.Web.Router do
 
       post("/accounts/:id/subscribe", AccountController, :subscribe)
       post("/accounts/:id/unsubscribe", AccountController, :unsubscribe)
+
+      get("/birthdays", AccountController, :birthdays)
     end
 
     post("/accounts/confirmation_resend", AccountController, :confirmation_resend)
diff --git a/lib/pleroma/web/twitter_api/twitter_api.ex b/lib/pleroma/web/twitter_api/twitter_api.ex
index 76ca82d20..aa4dfb145 100644
--- a/lib/pleroma/web/twitter_api/twitter_api.ex
+++ b/lib/pleroma/web/twitter_api/twitter_api.ex
@@ -20,6 +20,7 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
       |> Map.put(:name, Map.get(params, :fullname, params[:username]))
       |> Map.put(:password_confirmation, params[:password])
       |> Map.put(:registration_reason, params[:reason])
+      |> Map.put(:birthday, params[:birthday])
 
     if Pleroma.Config.get([:instance, :registrations_open]) do
       create_user(params, opts)
diff --git a/priv/repo/migrations/20220116183110_add_birthday_to_users.exs b/priv/repo/migrations/20220116183110_add_birthday_to_users.exs
new file mode 100644
index 000000000..0b22ecc69
--- /dev/null
+++ b/priv/repo/migrations/20220116183110_add_birthday_to_users.exs
@@ -0,0 +1,12 @@
+defmodule Pleroma.Repo.Migrations.AddBirthdayToUsers do
+  use Ecto.Migration
+
+  def change do
+    alter table(:users) do
+      add_if_not_exists(:birthday, :date)
+      add_if_not_exists(:show_birthday, :boolean, default: false, null: false)
+    end
+
+    create_if_not_exists(index(:users, [:show_birthday]))
+  end
+end
diff --git a/priv/repo/migrations/20220125104429_add_birthday_month_day_index_to_users.exs b/priv/repo/migrations/20220125104429_add_birthday_month_day_index_to_users.exs
new file mode 100644
index 000000000..8ce4c77c5
--- /dev/null
+++ b/priv/repo/migrations/20220125104429_add_birthday_month_day_index_to_users.exs
@@ -0,0 +1,11 @@
+defmodule Pleroma.Repo.Migrations.AddBirthdayMonthDayIndexToUsers do
+  use Ecto.Migration
+
+  def change do
+    create(
+      index(:users, ["date_part('month', birthday)", "date_part('day', birthday)"],
+        name: :users_birthday_month_day_index
+      )
+    )
+  end
+end
diff --git a/priv/static/schemas/litepub-0.1.jsonld b/priv/static/schemas/litepub-0.1.jsonld
index e7722cf72..946099a6e 100644
--- a/priv/static/schemas/litepub-0.1.jsonld
+++ b/priv/static/schemas/litepub-0.1.jsonld
@@ -35,7 +35,8 @@
             "alsoKnownAs": {
                 "@id": "as:alsoKnownAs",
                 "@type": "@id"
-            }
+            },
+            "vcard": "http://www.w3.org/2006/vcard/ns#"
         }
     ]
 }
diff --git a/test/fixtures/birthdays/misskey-user.json b/test/fixtures/birthdays/misskey-user.json
new file mode 100644
index 000000000..4ffee3910
--- /dev/null
+++ b/test/fixtures/birthdays/misskey-user.json
@@ -0,0 +1 @@
+{"@context":["https://www.w3.org/ns/activitystreams","https://w3id.org/security/v1",{"manuallyApprovesFollowers":"as:manuallyApprovesFollowers","sensitive":"as:sensitive","Hashtag":"as:Hashtag","quoteUrl":"as:quoteUrl","toot":"http://joinmastodon.org/ns#","Emoji":"toot:Emoji","featured":"toot:featured","discoverable":"toot:discoverable","schema":"http://schema.org#","PropertyValue":"schema:PropertyValue","value":"schema:value","misskey":"https://misskey.io/ns#","_misskey_content":"misskey:_misskey_content","_misskey_quote":"misskey:_misskey_quote","_misskey_reaction":"misskey:_misskey_reaction","_misskey_votes":"misskey:_misskey_votes","_misskey_talk":"misskey:_misskey_talk","isCat":"misskey:isCat","vcard":"http://www.w3.org/2006/vcard/ns#"}],"type":"Person","id":"https://misskey.io/users/8dhi2ne167","inbox":"https://misskey.io/users/8dhi2ne167/inbox","outbox":"https://misskey.io/users/8dhi2ne167/outbox","followers":"https://misskey.io/users/8dhi2ne167/followers","following":"https://misskey.io/users/8dhi2ne167/following","sharedInbox":"https://misskey.io/inbox","endpoints":{"sharedInbox":"https://misskey.io/inbox"},"url":"https://misskey.io/@mkljczk","preferredUsername":"mkljczk","name":null,"summary":null,"icon":null,"image":null,"tag":[],"manuallyApprovesFollowers":false,"discoverable":true,"publicKey":{"id":"https://misskey.io/users/8dhi2ne167#main-key","type":"Key","owner":"https://misskey.io/users/8dhi2ne167","publicKeyPem":"-----BEGIN PUBLIC KEY-----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\nGAQQmGMZmFgONC62FrDphlsCAwEAAQ==\n-----END PUBLIC KEY-----\n"},"isCat":true,"vcard:bday":"2001-02-12"}
\ No newline at end of file
diff --git a/test/pleroma/user_test.exs b/test/pleroma/user_test.exs
index a5a9021f6..a9a3004a8 100644
--- a/test/pleroma/user_test.exs
+++ b/test/pleroma/user_test.exs
@@ -755,6 +755,54 @@ defmodule Pleroma.UserTest do
     end
   end
 
+  describe "user registration, with :birthday_required and :birthday_min_age" do
+    @full_user_data %{
+      bio: "A guy",
+      name: "my name",
+      nickname: "nick",
+      password: "test",
+      password_confirmation: "test",
+      email: "email@example.com"
+    }
+
+    setup do
+      clear_config([:instance, :birthday_required], true)
+      clear_config([:instance, :birthday_min_age], 18 * 365)
+    end
+
+    test "it passes when correct birth date is provided" do
+      today = Date.utc_today()
+      birthday = Date.add(today, -19 * 365)
+
+      params =
+        @full_user_data
+        |> Map.put(:birthday, birthday)
+
+      changeset = User.register_changeset(%User{}, params)
+
+      assert changeset.valid?
+    end
+
+    test "it fails when birth date is not provided" do
+      changeset = User.register_changeset(%User{}, @full_user_data)
+
+      refute changeset.valid?
+    end
+
+    test "it fails when provided invalid birth date" do
+      today = Date.utc_today()
+      birthday = Date.add(today, -17 * 365)
+
+      params =
+        @full_user_data
+        |> Map.put(:birthday, birthday)
+
+      changeset = User.register_changeset(%User{}, params)
+
+      refute changeset.valid?
+    end
+  end
+
   describe "get_or_fetch/1" do
     test "gets an existing user by nickname" do
       user = insert(:user)
diff --git a/test/pleroma/web/activity_pub/activity_pub_test.exs b/test/pleroma/web/activity_pub/activity_pub_test.exs
index 3d152b4d0..9789d7704 100644
--- a/test/pleroma/web/activity_pub/activity_pub_test.exs
+++ b/test/pleroma/web/activity_pub/activity_pub_test.exs
@@ -389,6 +389,26 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
 
       assert %{data: %{"id" => ^object_url}} = Object.get_by_ap_id(object_url)
     end
+
+    test "fetches user birthday information from misskey" do
+      user_id = "https://misskey.io/@mkljczk"
+
+      Tesla.Mock.mock(fn
+        %{
+          method: :get,
+          url: ^user_id
+        } ->
+          %Tesla.Env{
+            status: 200,
+            body: File.read!("test/fixtures/birthdays/misskey-user.json"),
+            headers: [{"content-type", "application/activity+json"}]
+          }
+      end)
+
+      {:ok, user} = ActivityPub.make_user_from_ap_id(user_id)
+
+      assert user.birthday == ~D[2001-02-12]
+    end
   end
 
   test "it fetches the appropriate tag-restricted posts" do
diff --git a/test/pleroma/web/mastodon_api/controllers/account_controller_test.exs b/test/pleroma/web/mastodon_api/controllers/account_controller_test.exs
index 9b07cd5c2..f272ed1ae 100644
--- a/test/pleroma/web/mastodon_api/controllers/account_controller_test.exs
+++ b/test/pleroma/web/mastodon_api/controllers/account_controller_test.exs
@@ -1608,6 +1608,60 @@ defmodule Pleroma.Web.MastodonAPI.AccountControllerTest do
     end
   end
 
+  describe "create account with required birth date" do
+    setup %{conn: conn} do
+      clear_config([:instance, :birthday_required], true)
+      clear_config([:instance, :birthday_min_age], 18 * 365)
+
+      app_token = insert(:oauth_token, user: nil)
+
+      conn =
+        conn
+        |> put_req_header("authorization", "Bearer " <> app_token.token)
+        |> put_req_header("content-type", "multipart/form-data")
+
+      [conn: conn]
+    end
+
+    test "creates an account if provided valid birth date", %{conn: conn} do
+      birthday =
+        Date.utc_today()
+        |> Date.add(-19 * 365)
+        |> Date.to_string()
+
+      params = %{
+        username: "mkljczk",
+        email: "mkljczk@example.org",
+        password: "dupa.8",
+        agreement: true,
+        birthday: birthday
+      }
+
+      res =
+        conn
+        |> post("/api/v1/accounts", params)
+
+      assert json_response_and_validate_schema(res, 200)
+    end
+
+    test "returns an error if missing birth date", %{conn: conn} do
+      params = %{
+        username: "mkljczk",
+        email: "mkljczk@example.org",
+        password: "dupa.8",
+        agreement: true
+      }
+
+      res =
+        conn
+        |> post("/api/v1/accounts", params)
+
+      assert json_response_and_validate_schema(res, 400) == %{
+               "error" => "{\"birthday\":[\"can't be blank\"]}"
+             }
+    end
+  end
+
   describe "GET /api/v1/accounts/:id/lists - account_lists" do
     test "returns lists to which the account belongs" do
       %{user: user, conn: conn} = oauth_access(["read:lists"])
diff --git a/test/pleroma/web/mastodon_api/update_credentials_test.exs b/test/pleroma/web/mastodon_api/update_credentials_test.exs
index 1d2027899..f0618885a 100644
--- a/test/pleroma/web/mastodon_api/update_credentials_test.exs
+++ b/test/pleroma/web/mastodon_api/update_credentials_test.exs
@@ -370,6 +370,26 @@ defmodule Pleroma.Web.MastodonAPI.UpdateCredentialsTest do
              ]
     end
 
+    test "updates birth date", %{conn: conn} do
+      res =
+        patch(conn, "/api/v1/accounts/update_credentials", %{
+          "birthday" => "2001-02-12"
+        })
+
+      assert user_data = json_response_and_validate_schema(res, 200)
+      assert user_data["pleroma"]["birthday"] == "2001-02-12"
+    end
+
+    test "updates the user's show_birthday status", %{conn: conn} do
+      res =
+        patch(conn, "/api/v1/accounts/update_credentials", %{
+          "show_birthday" => true
+        })
+
+      assert user_data = json_response_and_validate_schema(res, 200)
+      assert user_data["source"]["pleroma"]["show_birthday"] == true
+    end
+
     test "emojis in fields labels", %{conn: conn} do
       fields = [
         %{"name" => ":firefox:", "value" => "is best 2hu"},
diff --git a/test/pleroma/web/mastodon_api/views/account_view_test.exs b/test/pleroma/web/mastodon_api/views/account_view_test.exs
index c23ffb966..329813994 100644
--- a/test/pleroma/web/mastodon_api/views/account_view_test.exs
+++ b/test/pleroma/web/mastodon_api/views/account_view_test.exs
@@ -79,6 +79,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountViewTest do
         ap_id: user.ap_id,
         also_known_as: ["https://shitposter.zone/users/shp"],
         background_image: "https://example.com/images/asuka_hospital.png",
+        birthday: nil,
         favicon: nil,
         is_confirmed: true,
         tags: [],
@@ -181,6 +182,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountViewTest do
         ap_id: user.ap_id,
         also_known_as: [],
         background_image: nil,
+        birthday: nil,
         favicon: nil,
         is_confirmed: true,
         tags: [],
diff --git a/test/pleroma/web/pleroma_api/controllers/account_controller_test.exs b/test/pleroma/web/pleroma_api/controllers/account_controller_test.exs
index d9aa8ce55..15682e40a 100644
--- a/test/pleroma/web/pleroma_api/controllers/account_controller_test.exs
+++ b/test/pleroma/web/pleroma_api/controllers/account_controller_test.exs
@@ -304,4 +304,59 @@ defmodule Pleroma.Web.PleromaAPI.AccountControllerTest do
       assert json_response_and_validate_schema(conn, 404) == %{"error" => "Record not found"}
     end
   end
+
+  describe "birthday reminders" do
+    test "returns a list of friends having birthday on specified day" do
+      %{user: user, conn: conn} = oauth_access(["read:accounts"])
+
+      %{id: id1} =
+        user1 =
+        insert(:user, %{
+          birthday: "2001-02-12",
+          show_birthday: true
+        })
+
+      user2 =
+        insert(:user, %{
+          birthday: "2001-02-14",
+          show_birthday: true
+        })
+
+      user3 = insert(:user)
+
+      CommonAPI.follow(user, user1)
+      CommonAPI.follow(user, user2)
+      CommonAPI.follow(user, user3)
+
+      [%{"id" => ^id1}] =
+        conn
+        |> get("/api/v1/pleroma/birthdays?day=12&month=2")
+        |> json_response_and_validate_schema(:ok)
+    end
+
+    test "the list doesn't list friends with hidden birth date" do
+      %{user: user, conn: conn} = oauth_access(["read:accounts"])
+
+      user1 =
+        insert(:user, %{
+          birthday: "2001-02-12",
+          show_birthday: false
+        })
+
+      %{id: id2} =
+        user2 =
+        insert(:user, %{
+          birthday: "2001-02-12",
+          show_birthday: true
+        })
+
+      CommonAPI.follow(user, user1)
+      CommonAPI.follow(user, user2)
+
+      [%{"id" => ^id2}] =
+        conn
+        |> get("/api/v1/pleroma/birthdays?day=12&month=2")
+        |> json_response_and_validate_schema(:ok)
+    end
+  end
 end