1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
defmodule Pleroma.Plugs.OAuthPlug do
import Plug.Conn
import Ecto.Query
alias Pleroma.{
User,
Repo,
Web.OAuth.Token
}
@realm_reg Regex.compile!("Bearer\:?\s+(.*)$", "i")
def init(options), do: options
def call(%{assigns: %{user: %User{}}} = conn, _), do: conn
def call(conn, _) do
with {:ok, token} <- fetch_token(conn),
{:ok, user} <- fetch_user(token) do
conn
|> assign(:token, token)
|> assign(:user, user)
else
_ -> conn
end
end
# Gets user by token
#
@spec fetch_user(String.t()) :: {:ok, User.t()} | nil
defp fetch_user(token) do
query = from(q in Token, where: q.token == ^token, preload: [:user])
with %Token{user: %{info: %{deactivated: false} = _} = user} <- Repo.one(query) do
{:ok, user}
end
end
# Gets token from session by :oauth_token key
#
@spec fetch_token_from_session(Plug.Conn.t()) :: :no_token_found | {:ok, String.t()}
defp fetch_token_from_session(conn) do
case get_session(conn, :oauth_token) do
nil -> :no_token_found
token -> {:ok, token}
end
end
# Gets token from headers
#
@spec fetch_token(Plug.Conn.t()) :: :no_token_found | {:ok, String.t()}
defp fetch_token(%Plug.Conn{} = conn) do
headers = get_req_header(conn, "authorization")
with :no_token_found <- fetch_token(headers),
do: fetch_token_from_session(conn)
end
@spec fetch_token(Keyword.t()) :: :no_token_found | {:ok, String.t()}
defp fetch_token([]), do: :no_token_found
defp fetch_token([token | tail]) do
trimmed_token = String.trim(token)
case Regex.run(@realm_reg, trimmed_token) do
[_, match] -> {:ok, String.trim(match)}
_ -> fetch_token(tail)
end
end
end
|
