Pleroma/lib/pleroma/user.ex

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defmodule Pleroma.User do
use Ecto.Schema
import Ecto.{Changeset, Query}
alias Pleroma.{Repo, User, Object, Web, Activity, Notification}
alias Comeonin.Pbkdf2
alias Pleroma.Web.{OStatus, Websub}
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alias Pleroma.Web.ActivityPub.{Utils, ActivityPub}
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schema "users" do
field :bio, :string
field :email, :string
field :name, :string
field :nickname, :string
field :password_hash, :string
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field :password, :string, virtual: true
field :password_confirmation, :string, virtual: true
field :following, {:array, :string}, default: []
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field :ap_id, :string
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field :avatar, :map
field :local, :boolean, default: true
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field :info, :map, default: %{}
field :follower_address, :string
has_many :notifications, Notification
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timestamps()
end
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def avatar_url(user) do
case user.avatar do
%{"url" => [%{"href" => href} | _]} -> href
_ -> "#{Web.base_url()}/images/avi.png"
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end
end
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def banner_url(user) do
case user.info["banner"] do
%{"url" => [%{"href" => href} | _]} -> href
_ -> "#{Web.base_url()}/images/banner.png"
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end
end
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def ap_id(%User{nickname: nickname}) do
"#{Web.base_url}/users/#{nickname}"
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end
def ap_followers(%User{} = user) do
"#{ap_id(user)}/followers"
end
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def follow_changeset(struct, params \\ %{}) do
struct
|> cast(params, [:following])
|> validate_required([:following])
end
def info_changeset(struct, params \\ %{}) do
struct
|> cast(params, [:info])
|> validate_required([:info])
end
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def user_info(%User{} = user) do
oneself = if user.local, do: 1, else: 0
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%{
following_count: length(user.following) - oneself,
note_count: user.info["note_count"] || 0,
follower_count: user.info["follower_count"] || 0
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}
end
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@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
changes = %User{}
|> cast(params, [:bio, :name, :ap_id, :nickname, :info, :avatar])
|> validate_required([:name, :ap_id, :nickname])
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|> unique_constraint(:nickname)
|> validate_format(:nickname, @email_regex)
|> validate_length(:bio, max: 5000)
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|> validate_length(:name, max: 100)
|> put_change(:local, false)
if changes.valid? do
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case changes.changes[:info]["source_data"] do
%{"followers" => followers} ->
changes
|> put_change(:follower_address, followers)
_ ->
followers = User.ap_followers(%User{nickname: changes.changes[:nickname]})
changes
|> put_change(:follower_address, followers)
end
else
changes
end
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end
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def update_changeset(struct, params \\ %{}) do
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struct
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|> cast(params, [:bio, :name])
|> unique_constraint(:nickname)
|> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
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|> validate_length(:bio, max: 1000)
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|> validate_length(:name, min: 1, max: 100)
end
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def upgrade_changeset(struct, params \\ %{}) do
struct
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|> cast(params, [:bio, :name, :info, :follower_address, :avatar])
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|> unique_constraint(:nickname)
|> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
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|> validate_length(:bio, max: 5000)
|> validate_length(:name, max: 100)
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end
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def password_update_changeset(struct, params) do
changeset = struct
|> cast(params, [:password, :password_confirmation])
|> validate_required([:password, :password_confirmation])
|> validate_confirmation(:password)
if changeset.valid? do
hashed = Pbkdf2.hashpwsalt(changeset.changes[:password])
changeset
|> put_change(:password_hash, hashed)
else
changeset
end
end
def reset_password(user, data) do
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update_and_set_cache(password_update_changeset(user, data))
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end
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def register_changeset(struct, params \\ %{}) do
changeset = struct
|> cast(params, [:bio, :email, :name, :nickname, :password, :password_confirmation])
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|> validate_required([:email, :name, :nickname, :password, :password_confirmation])
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|> validate_confirmation(:password)
|> unique_constraint(:email)
|> unique_constraint(:nickname)
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|> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
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|> validate_format(:email, @email_regex)
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|> validate_length(:bio, max: 1000)
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|> validate_length(:name, min: 1, max: 100)
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if changeset.valid? do
hashed = Pbkdf2.hashpwsalt(changeset.changes[:password])
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ap_id = User.ap_id(%User{nickname: changeset.changes[:nickname]})
followers = User.ap_followers(%User{nickname: changeset.changes[:nickname]})
changeset
|> put_change(:password_hash, hashed)
|> put_change(:ap_id, ap_id)
|> put_change(:following, [followers])
|> put_change(:follower_address, followers)
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else
changeset
end
end
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def follow(%User{} = follower, %User{info: info} = followed) do
ap_followers = followed.follower_address
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if following?(follower, followed) or info["deactivated"] do
{:error,
"Could not follow user: #{followed.nickname} is already on your list."}
else
if !followed.local && follower.local && !ap_enabled?(followed) do
Websub.subscribe(follower, followed)
end
following = [ap_followers | follower.following]
|> Enum.uniq
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follower = follower
|> follow_changeset(%{following: following})
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|> update_and_set_cache
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{:ok, _} = update_follower_count(followed)
follower
end
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end
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def unfollow(%User{} = follower, %User{} = followed) do
ap_followers = followed.follower_address
if following?(follower, followed) and follower.ap_id != followed.ap_id do
following = follower.following
|> List.delete(ap_followers)
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{ :ok, follower } = follower
|> follow_changeset(%{following: following})
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|> update_and_set_cache
{:ok, followed} = update_follower_count(followed)
{:ok, follower, Utils.fetch_latest_follow(follower, followed)}
else
{:error, "Not subscribed!"}
end
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end
def following?(%User{} = follower, %User{} = followed) do
Enum.member?(follower.following, followed.follower_address)
end
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def get_by_ap_id(ap_id) do
Repo.get_by(User, ap_id: ap_id)
end
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def update_and_set_cache(changeset) do
with {:ok, user} <- Repo.update(changeset) do
Cachex.set(:user_cache, "ap_id:#{user.ap_id}", user)
Cachex.set(:user_cache, "nickname:#{user.nickname}", user)
Cachex.set(:user_cache, "user_info:#{user.id}", user_info(user))
{:ok, user}
else
e -> e
end
end
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def invalidate_cache(user) do
Cachex.del(:user_cache, "ap_id:#{user.ap_id}")
Cachex.del(:user_cache, "nickname:#{user.nickname}")
end
def get_cached_by_ap_id(ap_id) do
key = "ap_id:#{ap_id}"
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Cachex.get!(:user_cache, key, fallback: fn(_) -> get_by_ap_id(ap_id) end)
end
def get_cached_by_nickname(nickname) do
key = "nickname:#{nickname}"
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Cachex.get!(:user_cache, key, fallback: fn(_) -> get_or_fetch_by_nickname(nickname) end)
end
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def get_by_nickname(nickname) do
Repo.get_by(User, nickname: nickname)
end
def get_cached_user_info(user) do
key = "user_info:#{user.id}"
Cachex.get!(:user_cache, key, fallback: fn(_) -> user_info(user) end)
end
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def fetch_by_nickname(nickname) do
ap_try = ActivityPub.make_user_from_nickname(nickname)
case ap_try do
{:ok, user} -> {:ok, user}
_ -> OStatus.make_user(nickname)
end
end
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def get_or_fetch_by_nickname(nickname) do
with %User{} = user <- get_by_nickname(nickname) do
user
else _e ->
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with [_nick, _domain] <- String.split(nickname, "@"),
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{:ok, user} <- fetch_by_nickname(nickname) do
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user
else _e -> nil
end
end
end
def get_followers(%User{id: id, follower_address: follower_address}) do
q = from u in User,
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where: ^follower_address in u.following,
where: u.id != ^id
{:ok, Repo.all(q)}
end
def get_friends(%User{id: id, following: following}) do
q = from u in User,
where: u.follower_address in ^following,
where: u.id != ^id
{:ok, Repo.all(q)}
end
def increase_note_count(%User{} = user) do
note_count = (user.info["note_count"] || 0) + 1
new_info = Map.put(user.info, "note_count", note_count)
cs = info_changeset(user, %{info: new_info})
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update_and_set_cache(cs)
end
def update_note_count(%User{} = user) do
note_count_query = from a in Object,
where: fragment("?->>'actor' = ? and ?->>'type' = 'Note'", a.data, ^user.ap_id, a.data),
select: count(a.id)
note_count = Repo.one(note_count_query)
new_info = Map.put(user.info, "note_count", note_count)
cs = info_changeset(user, %{info: new_info})
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update_and_set_cache(cs)
end
def update_follower_count(%User{} = user) do
follower_count_query = from u in User,
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where: ^user.follower_address in u.following,
where: u.id != ^user.id,
select: count(u.id)
follower_count = Repo.one(follower_count_query)
new_info = Map.put(user.info, "follower_count", follower_count)
cs = info_changeset(user, %{info: new_info})
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update_and_set_cache(cs)
end
def get_notified_from_activity(%Activity{recipients: to}) do
query = from u in User,
where: u.ap_id in ^to,
where: u.local == true
Repo.all(query)
end
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def get_recipients_from_activity(%Activity{recipients: to}) do
query = from u in User,
where: u.ap_id in ^to,
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or_where: fragment("? && ?", u.following, ^to)
query = from u in query,
where: u.local == true
Repo.all(query)
end
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def search(query, resolve) do
if resolve do
User.get_or_fetch_by_nickname(query)
end
q = from u in User,
where: fragment("(to_tsvector('english', ?) || to_tsvector('english', ?)) @@ plainto_tsquery('english', ?)", u.nickname, u.name, ^query),
limit: 20
Repo.all(q)
end
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def block(user, %{ap_id: ap_id}) do
blocks = user.info["blocks"] || []
new_blocks = Enum.uniq([ap_id | blocks])
new_info = Map.put(user.info, "blocks", new_blocks)
cs = User.info_changeset(user, %{info: new_info})
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update_and_set_cache(cs)
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end
def unblock(user, %{ap_id: ap_id}) do
blocks = user.info["blocks"] || []
new_blocks = List.delete(blocks, ap_id)
new_info = Map.put(user.info, "blocks", new_blocks)
cs = User.info_changeset(user, %{info: new_info})
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update_and_set_cache(cs)
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end
def blocks?(user, %{ap_id: ap_id}) do
blocks = user.info["blocks"] || []
Enum.member?(blocks, ap_id)
end
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def local_user_query() do
from u in User,
where: u.local == true
end
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def deactivate (%User{} = user) do
new_info = Map.put(user.info, "deactivated", true)
cs = User.info_changeset(user, %{info: new_info})
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update_and_set_cache(cs)
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end
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def delete (%User{} = user) do
{:ok, user} = User.deactivate(user)
# Remove all relationships
{:ok, followers } = User.get_followers(user)
followers
|> Enum.each(fn (follower) -> User.unfollow(follower, user) end)
{:ok, friends} = User.get_friends(user)
friends
|> Enum.each(fn (followed) -> User.unfollow(user, followed) end)
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query = from a in Activity,
where: a.actor == ^user.ap_id
Repo.all(query)
|> Enum.each(fn (activity) ->
case activity.data["type"] do
"Create" -> ActivityPub.delete(Object.get_by_ap_id(activity.data["object"]["id"]))
_ -> "Doing nothing" # TODO: Do something with likes, follows, repeats.
end
end)
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:ok
end
def get_or_fetch_by_ap_id(ap_id) do
if user = get_by_ap_id(ap_id) do
user
else
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ap_try = ActivityPub.make_user_from_ap_id(ap_id)
case ap_try do
{:ok, user} -> user
_ ->
case OStatus.make_user(ap_id) do
{:ok, user} -> user
_ -> {:error, "Could not fetch by ap id"}
end
end
end
end
# AP style
def public_key_from_info(%{"source_data" => %{"publicKey" => %{"publicKeyPem" => public_key_pem}}}) do
key = :public_key.pem_decode(public_key_pem)
|> hd()
|> :public_key.pem_entry_decode()
{:ok, key}
end
# OStatus Magic Key
def public_key_from_info(%{"magic_key" => magic_key}) do
{:ok, Pleroma.Web.Salmon.decode_key(magic_key)}
end
def get_public_key_for_ap_id(ap_id) do
with %User{} = user <- get_or_fetch_by_ap_id(ap_id),
{:ok, public_key} <- public_key_from_info(user.info) do
{:ok, public_key}
else
_ -> :error
end
end
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defp blank?(""), do: nil
defp blank?(n), do: n
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def insert_or_update_user(data) do
data = data
|> Map.put(:name, blank?(data[:name]) || data[:nickname])
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cs = User.remote_user_creation(data)
Repo.insert(cs, on_conflict: :replace_all, conflict_target: :nickname)
end
def ap_enabled?(%User{info: info}), do: info["ap_enabled"]
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def ap_enabled?(_), do: false
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end