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
71
72
73
74
75
76
|
# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.OAuth.Scopes do
@moduledoc """
Functions for dealing with scopes.
"""
alias Pleroma.Plugs.OAuthScopesPlug
@doc """
Fetch scopes from request params.
Note: `scopes` is used by Mastodon — supporting it but sticking to
OAuth's standard `scope` wherever we control it
"""
@spec fetch_scopes(map() | struct(), list()) :: list()
def fetch_scopes(params, default) do
parse_scopes(params["scope"] || params["scopes"] || params[:scopes], default)
end
def parse_scopes(scopes, _default) when is_list(scopes) do
Enum.filter(scopes, &(&1 not in [nil, ""]))
end
def parse_scopes(scopes, default) when is_binary(scopes) do
scopes
|> to_list
|> parse_scopes(default)
end
def parse_scopes(_, default) do
default
end
@doc """
Convert scopes string to list
"""
@spec to_list(binary()) :: [binary()]
def to_list(nil), do: []
def to_list(str) do
str
|> String.trim()
|> String.split(~r/[\s,]+/)
end
@doc """
Convert scopes list to string
"""
@spec to_string(list()) :: binary()
def to_string(scopes), do: Enum.join(scopes, " ")
@doc """
Validates scopes.
"""
@spec validate(list() | nil, list()) ::
{:ok, list()} | {:error, :missing_scopes | :unsupported_scopes}
def validate(blank_scopes, _app_scopes) when blank_scopes in [nil, []],
do: {:error, :missing_scopes}
def validate(scopes, app_scopes) do
case OAuthScopesPlug.filter_descendants(scopes, app_scopes) do
^scopes -> {:ok, scopes}
_ -> {:error, :unsupported_scopes}
end
end
def contains_admin_scopes?(scopes) do
scopes
|> OAuthScopesPlug.filter_descendants(["admin"])
|> Enum.any?()
end
end
|
