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 # Special case: Local MastodonFE.
38 if redirect_uri == "." do
39 mastodon_api_url(conn, :login)
45 redirect_uri == "urn:ietf:wg:oauth:2.0:oob" ->
46 render(conn, "results.html", %{
51 connector = if String.contains?(redirect_uri, "?"), do: "&", else: "?"
52 url = "#{redirect_uri}#{connector}"
53 url_params = %{:code => auth.token}
57 Map.put(url_params, :state, params["state"])
62 url = "#{url}#{Plug.Conn.Query.encode(url_params)}"
64 redirect(conn, external: url)
70 # - proper scope handling
71 def token_exchange(conn, %{"grant_type" => "authorization_code"} = params) do
72 with %App{} = app <- get_app_from_request(conn, params),
73 fixed_token = fix_padding(params["code"]),
74 %Authorization{} = auth <-
75 Repo.get_by(Authorization, token: fixed_token, app_id: app.id),
76 {:ok, token} <- Token.exchange_token(app, auth),
77 {:ok, inserted_at} <- DateTime.from_naive(token.inserted_at, "Etc/UTC") do
80 access_token: token.token,
81 refresh_token: token.refresh_token,
82 created_at: DateTime.to_unix(inserted_at),
84 scope: "read write follow"
91 |> json(%{error: "Invalid credentials"})
96 # - investigate a way to verify the user wants to grant read/write/follow once scope handling is done
99 %{"grant_type" => "password", "username" => name, "password" => password} = params
101 with %App{} = app <- get_app_from_request(conn, params),
102 %User{} = user <- User.get_by_nickname_or_email(name),
103 true <- Pbkdf2.checkpw(password, user.password_hash),
104 {:ok, auth} <- Authorization.create_authorization(app, user),
105 {:ok, token} <- Token.exchange_token(app, auth) do
107 token_type: "Bearer",
108 access_token: token.token,
109 refresh_token: token.refresh_token,
111 scope: "read write follow"
117 put_status(conn, 400)
118 |> json(%{error: "Invalid credentials"})
124 %{"grant_type" => "password", "name" => name, "password" => password} = params
128 |> Map.delete("name")
129 |> Map.put("username", name)
131 token_exchange(conn, params)
134 def token_revoke(conn, %{"token" => token} = params) do
135 with %App{} = app <- get_app_from_request(conn, params),
136 %Token{} = token <- Repo.get_by(Token, token: token, app_id: app.id),
137 {:ok, %Token{}} <- Repo.delete(token) do
141 # RFC 7009: invalid tokens [in the request] do not cause an error response
146 # XXX - for whatever reason our token arrives urlencoded, but Plug.Conn should be
147 # decoding it. Investigate sometime.
148 defp fix_padding(token) do
151 |> Base.url_decode64!(padding: false)
152 |> Base.url_encode64()
155 defp get_app_from_request(conn, params) do
156 # Per RFC 6749, HTTP Basic is preferred to body params
157 {client_id, client_secret} =
158 with ["Basic " <> encoded] <- get_req_header(conn, "authorization"),
159 {:ok, decoded} <- Base.decode64(encoded),
161 String.split(decoded, ":")
162 |> Enum.map(fn s -> URI.decode_www_form(s) end) do
165 _ -> {params["client_id"], params["client_secret"]}
168 if client_id && client_secret do
171 client_id: client_id,
172 client_secret: client_secret