1 defmodule Pleroma.Web.OAuth.OAuthController do
2 use Pleroma.Web, :controller
4 alias Pleroma.Web.OAuth.{Authorization, Token, App}
5 alias Pleroma.{Repo, User}
11 action_fallback(Pleroma.Web.OAuth.FallbackController)
13 def authorize(conn, params) do
14 render(conn, "show.html", %{
15 response_type: params["response_type"],
16 client_id: params["client_id"],
17 scope: params["scope"],
18 redirect_uri: params["redirect_uri"],
19 state: params["state"]
23 def create_authorization(conn, %{
27 "password" => password,
28 "client_id" => client_id,
29 "redirect_uri" => redirect_uri
32 with %User{} = user <- User.get_by_nickname_or_email(name),
33 true <- Pbkdf2.checkpw(password, user.password_hash),
34 %App{} = app <- Repo.get_by(App, client_id: client_id),
35 {:ok, auth} <- Authorization.create_authorization(app, user) do
36 if redirect_uri == "urn:ietf:wg:oauth:2.0:oob" do
37 render(conn, "results.html", %{
41 connector = if String.contains?(redirect_uri, "?"), do: "&", else: "?"
42 url = "#{redirect_uri}#{connector}code=#{auth.token}"
46 url <> "&state=#{params["state"]}"
51 redirect(conn, external: url)
57 # - proper scope handling
58 def token_exchange(conn, %{"grant_type" => "authorization_code"} = params) do
59 with %App{} = app <- get_app_from_request(conn, params),
60 fixed_token = fix_padding(params["code"]),
61 %Authorization{} = auth <-
62 Repo.get_by(Authorization, token: fixed_token, app_id: app.id),
63 {:ok, token} <- Token.exchange_token(app, auth),
64 {:ok, inserted_at} <- DateTime.from_naive(token.inserted_at, "Etc/UTC") do
67 access_token: token.token,
68 refresh_token: token.refresh_token,
69 created_at: DateTime.to_unix(inserted_at),
71 scope: "read write follow"
78 |> json(%{error: "Invalid credentials"})
83 # - investigate a way to verify the user wants to grant read/write/follow once scope handling is done
86 %{"grant_type" => "password", "username" => name, "password" => password} = params
88 with %App{} = app <- get_app_from_request(conn, params),
89 %User{} = user <- User.get_by_nickname_or_email(name),
90 true <- Pbkdf2.checkpw(password, user.password_hash),
91 {:ok, auth} <- Authorization.create_authorization(app, user),
92 {:ok, token} <- Token.exchange_token(app, auth) do
95 access_token: token.token,
96 refresh_token: token.refresh_token,
98 scope: "read write follow"
104 put_status(conn, 400)
105 |> json(%{error: "Invalid credentials"})
111 %{"grant_type" => "password", "name" => name, "password" => password} = params
115 |> Map.delete("name")
116 |> Map.put("username", name)
118 token_exchange(conn, params)
121 def token_revoke(conn, %{"token" => token} = params) do
122 with %App{} = app <- get_app_from_request(conn, params),
123 %Token{} = token <- Repo.get_by(Token, token: token, app_id: app.id),
124 {:ok, %Token{}} <- Repo.delete(token) do
128 # RFC 7009: invalid tokens [in the request] do not cause an error response
133 defp fix_padding(token) do
135 |> Base.url_decode64!(padding: false)
136 |> Base.url_encode64()
139 defp get_app_from_request(conn, params) do
140 # Per RFC 6749, HTTP Basic is preferred to body params
141 {client_id, client_secret} =
142 with ["Basic " <> encoded] <- get_req_header(conn, "authorization"),
143 {:ok, decoded} <- Base.decode64(encoded),
145 String.split(decoded, ":")
146 |> Enum.map(fn s -> URI.decode_www_form(s) end) do
149 _ -> {params["client_id"], params["client_secret"]}
152 if client_id && client_secret do
155 client_id: client_id,
156 client_secret: client_secret