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accounts.ex
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accounts.ex
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defmodule Asciinema.Accounts do
import Ecto.Query, warn: false
import Ecto, only: [assoc: 2, build_assoc: 2]
alias Asciinema.Accounts.{User, ApiToken}
alias Asciinema.{Repo, Email, Mailer}
def get_user!(id), do: Repo.get!(User, id)
def ensure_asciinema_user do
case Repo.get_by(User, username: "asciinema") do
nil ->
attrs = %{
username: "asciinema",
name: "asciinema",
email: "admin@asciinema.org"
}
%User{}
|> User.create_changeset(attrs)
|> Repo.insert!()
user ->
user
end
end
def change_user(user) do
User.changeset(user)
end
def update_user(user, params) do
user
|> User.update_changeset(params)
|> Repo.update
end
def temporary_user?(user), do: user.email == nil
def temporary_users(q \\ User) do
from(u in q, where: is_nil(u.email))
end
def send_login_email(email_or_username) do
with {:ok, %User{} = user} <- lookup_user(email_or_username) do
do_send_login_email(user)
end
end
defp lookup_user(email_or_username) do
if String.contains?(email_or_username, "@") do
lookup_user_by_email(email_or_username)
else
lookup_user_by_username(email_or_username)
end
end
defp lookup_user_by_email(email) do
case Repo.get_by(User, email: email) do
%User{} = user ->
{:ok, user}
nil ->
case User.signup_changeset(%{email: email}) do
%{errors: [{:email, _}]} ->
{:error, :email_invalid}
%{errors: []} ->
{:ok, %User{email: email}}
end
end
end
def find_user_by_username!(username), do: Repo.get_by!(User, username: username)
defp lookup_user_by_username(username) do
case Repo.get_by(User, username: username) do
%User{} = user ->
{:ok, user}
nil ->
{:error, :user_not_found}
end
end
defp do_send_login_email(%User{email: nil}) do
{:error, :email_missing}
end
defp do_send_login_email(%User{id: nil, email: email}) do
url = signup_url(email)
Email.signup_email(email, url) |> Mailer.deliver_later
{:ok, url}
end
defp do_send_login_email(%User{} = user) do
url = login_url(user)
Email.login_email(user.email, url) |> Mailer.deliver_later
{:ok, url}
end
def signup_token(email) do
Phoenix.Token.sign(AsciinemaWeb.Endpoint, "signup", email)
end
def signup_url(email) do
token = signup_token(email)
AsciinemaWeb.Router.Helpers.users_url(AsciinemaWeb.Endpoint, :new, t: token)
end
def login_token(%User{id: id, last_login_at: last_login_at}) do
last_login_at = last_login_at && Timex.to_unix(last_login_at)
Phoenix.Token.sign(AsciinemaWeb.Endpoint, "login", {id, last_login_at})
end
def login_url(%User{} = user) do
token = login_token(user)
AsciinemaWeb.Router.Helpers.session_url(AsciinemaWeb.Endpoint, :new, t: token)
end
@login_token_max_age 15 * 60 # 15 minutes
alias Phoenix.Token
alias AsciinemaWeb.Endpoint
def verify_signup_token(token) do
with {:ok, email} <- Token.verify(Endpoint, "signup", token, max_age: @login_token_max_age),
{:ok, %User{} = user} <- Repo.insert(User.signup_changeset(%{email: email})) do
{:ok, user}
else
{:error, :invalid} ->
{:error, :token_invalid}
{:error, %Ecto.Changeset{}} ->
{:error, :email_taken}
{:error, _} ->
{:error, :token_expired}
end
end
def verify_login_token(token) do
with {:ok, {user_id, last_login_at}} <- Token.verify(Endpoint, "login", token, max_age: @login_token_max_age),
%User{} = user <- Repo.get(User, user_id),
^last_login_at <- user.last_login_at && Timex.to_unix(user.last_login_at) do
{:ok, user}
else
{:error, :invalid} ->
{:error, :token_invalid}
nil ->
{:error, :user_not_found}
_ ->
{:error, :token_expired}
end
end
def get_user_with_api_token(token, tmp_username \\ nil) do
case get_api_token(token) do
{:ok, %ApiToken{user: user}} ->
{:ok, user}
{:error, :token_revoked} = res ->
res
{:error, :token_not_found} ->
create_user_with_api_token(token, tmp_username)
end
end
def create_user_with_api_token(token, tmp_username) do
user_changeset = User.temporary_changeset(tmp_username)
Repo.transaction(fn ->
with {:ok, %User{} = user} <- Repo.insert(user_changeset),
{:ok, %ApiToken{}} <- create_api_token(user, token) do
user
else
{:error, %Ecto.Changeset{}} ->
Repo.rollback(:token_invalid)
{:error, reason} ->
Repo.rollback(reason)
result ->
Repo.rollback(result)
end
end)
end
def create_api_token(%User{} = user, token) do
result =
user
|> build_assoc(:api_tokens)
|> ApiToken.create_changeset(token)
|> Repo.insert
case result do
{:ok, api_token} ->
{:ok, %{api_token | user: user}}
{:error, %Ecto.Changeset{}} ->
{:error, :token_invalid}
end
end
def get_or_create_api_token(token, user) do
with {:ok, token} <- get_api_token(token) do
{:ok, token}
else
{:error, :token_not_found} ->
create_api_token(user, token)
otherwise ->
otherwise
end
end
def get_api_token(token) do
api_token =
ApiToken
|> Repo.get_by(token: token)
|> Repo.preload(:user)
case api_token do
nil -> {:error, :token_not_found}
%ApiToken{revoked_at: nil} -> {:ok, api_token}
%ApiToken{} -> {:error, :token_revoked}
end
end
def get_api_token!(user, id) do
Repo.get!(assoc(user, :api_tokens), id)
end
def get_api_token!(token) do
Repo.get_by!(ApiToken, token: token)
end
def revoke_api_token!(api_token) do
api_token
|> ApiToken.revoke_changeset
|> Repo.update!
end
def merge!(dst_user, src_user) do
Repo.transaction(fn ->
asciicasts_q = from(assoc(src_user, :asciicasts))
Repo.update_all(asciicasts_q, set: [user_id: dst_user.id, updated_at: Timex.now])
api_tokens_q = from(assoc(src_user, :api_tokens))
Repo.update_all(api_tokens_q, set: [user_id: dst_user.id, updated_at: Timex.now])
Repo.delete!(src_user)
dst_user
end)
end
def list_api_tokens(%User{} = user) do
user
|> assoc(:api_tokens)
|> Repo.all
end
def asciicasts(user, visibility \\ :all) do
q = from(a in assoc(user, :asciicasts), where: is_nil(a.archived_at))
case visibility do
:all -> q
:private -> where(q, private: true)
:public -> where(q, private: false)
end
end
def add_admins(emails) do
from(u in User, where: u.email in ^emails)
|> Repo.update_all(set: [is_admin: true])
end
def remove_admins(emails) do
from(u in User, where: u.email in ^emails)
|> Repo.update_all(set: [is_admin: false])
end
end