1 files changed, 75 insertions, 20 deletions

diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index 74ae5ef0d..3ad1ab87a 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -9,6 +9,13 @@ defmodule Pleroma.User do
   alias Pleroma.Web.{OStatus, Websub, OAuth}
   alias Pleroma.Web.ActivityPub.{Utils, ActivityPub}
 
+  @type t :: %__MODULE__{}
+
+  @email_regex ~r/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
+
+  @strict_local_nickname_regex ~r/^[a-zA-Z\d]+$/
+  @extended_local_nickname_regex ~r/^[a-zA-Z\d_-]+$/
+
   schema "users" do
     field(:bio, :string)
     field(:email, :string)
@@ -23,6 +30,7 @@ defmodule Pleroma.User do
     field(:local, :boolean, default: true)
     field(:follower_address, :string)
     field(:search_distance, :float, virtual: true)
+    field(:tags, {:array, :string}, default: [])
     field(:last_refreshed_at, :naive_datetime)
     has_many(:notifications, Notification)
     embeds_one(:info, Pleroma.User.Info)
@@ -62,10 +70,6 @@ defmodule Pleroma.User do
     |> validate_required([:following])
   end
 
-  def info_changeset(struct, params \\ %{}) do
-    raise "NOT VALID ANYMORE"
-  end
-
   def user_info(%User{} = user) do
     oneself = if user.local, do: 1, else: 0
 
@@ -78,7 +82,6 @@ defmodule Pleroma.User do
     }
   end
 
-  @email_regex ~r/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
   def remote_user_creation(params) do
     params =
       params
@@ -118,7 +121,7 @@ defmodule Pleroma.User do
     struct
     |> cast(params, [:bio, :name, :avatar])
     |> unique_constraint(:nickname)
-    |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
+    |> validate_format(:nickname, local_nickname_regex())
     |> validate_length(:bio, max: 5000)
     |> validate_length(:name, min: 1, max: 100)
   end
@@ -135,7 +138,7 @@ defmodule Pleroma.User do
     struct
     |> cast(params, [:bio, :name, :follower_address, :avatar, :last_refreshed_at])
     |> unique_constraint(:nickname)
-    |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
+    |> validate_format(:nickname, local_nickname_regex())
     |> validate_length(:bio, max: 5000)
     |> validate_length(:name, max: 100)
     |> put_embed(:info, info_cng)
@@ -173,7 +176,7 @@ defmodule Pleroma.User do
       |> validate_confirmation(:password)
       |> unique_constraint(:email)
       |> unique_constraint(:nickname)
-      |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
+      |> validate_format(:nickname, local_nickname_regex())
       |> validate_format(:email, @email_regex)
       |> validate_length(:bio, max: 1000)
       |> validate_length(:name, min: 1, max: 100)
@@ -213,14 +216,14 @@ defmodule Pleroma.User do
   end
 
   def maybe_direct_follow(%User{} = follower, %User{} = followed) do
-    if !User.ap_enabled?(followed) do
+    if not User.ap_enabled?(followed) do
       follow(follower, followed)
     else
       {:ok, follower}
     end
   end
 
-  def maybe_follow(%User{} = follower, %User{info: info} = followed) do
+  def maybe_follow(%User{} = follower, %User{info: _info} = followed) do
     if not following?(follower, followed) do
       follow(follower, followed)
     else
@@ -282,6 +285,7 @@ defmodule Pleroma.User do
     end
   end
 
+  @spec following?(User.t(), User.t()) :: boolean
   def following?(%User{} = follower, %User{} = followed) do
     Enum.member?(follower.following, followed.follower_address)
   end
@@ -736,7 +740,8 @@ defmodule Pleroma.User do
         source_data: %{"publicKey" => %{"publicKeyPem" => public_key_pem}}
       }) do
     key =
-      :public_key.pem_decode(public_key_pem)
+      public_key_pem
+      |> :public_key.pem_decode()
       |> hd()
       |> :public_key.pem_entry_decode()
 
@@ -774,13 +779,10 @@ defmodule Pleroma.User do
   def ap_enabled?(%User{info: info}), do: info.ap_enabled
   def ap_enabled?(_), do: false
 
-  def get_or_fetch(uri_or_nickname) do
-    if String.starts_with?(uri_or_nickname, "http") do
-      get_or_fetch_by_ap_id(uri_or_nickname)
-    else
-      get_or_fetch_by_nickname(uri_or_nickname)
-    end
-  end
+  @doc "Gets or fetch a user by uri or nickname."
+  @spec get_or_fetch(String.t()) :: User.t()
+  def get_or_fetch("http" <> _host = uri), do: get_or_fetch_by_ap_id(uri)
+  def get_or_fetch(nickname), do: get_or_fetch_by_nickname(nickname)
 
   # wait a period of time and return newest version of the User structs
   # this is because we have synchronous follow APIs and need to simulate them
@@ -806,7 +808,11 @@ defmodule Pleroma.User do
     end
   end
 
-  def parse_bio(bio, user \\ %User{info: %{source_data: %{}}}) do
+  def parse_bio(bio, user \\ %User{info: %{source_data: %{}}})
+  def parse_bio(nil, _user), do: ""
+  def parse_bio(bio, _user) when bio == "", do: bio
+
+  def parse_bio(bio, user) do
     mentions = Formatter.parse_mentions(bio)
     tags = Formatter.parse_tags(bio)
 
@@ -817,6 +823,55 @@ defmodule Pleroma.User do
         {String.trim(name, ":"), url}
       end)
 
-    CommonUtils.format_input(bio, mentions, tags, "text/plain") |> Formatter.emojify(emoji)
+    bio
+    |> CommonUtils.format_input(mentions, tags, "text/plain")
+    |> Formatter.emojify(emoji)
+  end
+
+  def tag(user_identifiers, tags) when is_list(user_identifiers) do
+    Repo.transaction(fn ->
+      for user_identifier <- user_identifiers, do: tag(user_identifier, tags)
+    end)
+  end
+
+  def tag(nickname, tags) when is_binary(nickname),
+    do: tag(User.get_by_nickname(nickname), tags)
+
+  def tag(%User{} = user, tags),
+    do: update_tags(user, Enum.uniq((user.tags || []) ++ normalize_tags(tags)))
+
+  def untag(user_identifiers, tags) when is_list(user_identifiers) do
+    Repo.transaction(fn ->
+      for user_identifier <- user_identifiers, do: untag(user_identifier, tags)
+    end)
+  end
+
+  def untag(nickname, tags) when is_binary(nickname),
+    do: untag(User.get_by_nickname(nickname), tags)
+
+  def untag(%User{} = user, tags),
+    do: update_tags(user, (user.tags || []) -- normalize_tags(tags))
+
+  defp update_tags(%User{} = user, new_tags) do
+    {:ok, updated_user} =
+      user
+      |> change(%{tags: new_tags})
+      |> Repo.update()
+
+    updated_user
+  end
+
+  defp normalize_tags(tags) do
+    [tags]
+    |> List.flatten()
+    |> Enum.map(&String.downcase(&1))
+  end
+
+  defp local_nickname_regex() do
+    if Pleroma.Config.get([:instance, :extended_nickname_format]) do
+      @extended_local_nickname_regex
+    else
+      @strict_local_nickname_regex
+    end
   end
 end