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diff --git a/lib/pleroma/web/oauth/oauth_controller.ex b/lib/pleroma/web/oauth/oauth_controller.ex
index 160cedd8e..8fe0dde6e 100644
--- a/lib/pleroma/web/oauth/oauth_controller.ex
+++ b/lib/pleroma/web/oauth/oauth_controller.ex
@@ -1,162 +1,165 @@
defmodule Pleroma.Web.OAuth.OAuthController do
use Pleroma.Web, :controller
alias Pleroma.Web.OAuth.{Authorization, Token, App}
alias Pleroma.{Repo, User}
alias Comeonin.Pbkdf2
plug(:fetch_session)
plug(:fetch_flash)
action_fallback(Pleroma.Web.OAuth.FallbackController)
def authorize(conn, params) do
render(conn, "show.html", %{
response_type: params["response_type"],
client_id: params["client_id"],
scope: params["scope"],
redirect_uri: params["redirect_uri"],
state: params["state"]
})
end
def create_authorization(conn, %{
"authorization" =>
%{
"name" => name,
"password" => password,
"client_id" => client_id,
"redirect_uri" => redirect_uri
} = params
}) do
with %User{} = user <- User.get_by_nickname_or_email(name),
true <- Pbkdf2.checkpw(password, user.password_hash),
%App{} = app <- Repo.get_by(App, client_id: client_id),
{:ok, auth} <- Authorization.create_authorization(app, user) do
if redirect_uri == "urn:ietf:wg:oauth:2.0:oob" do
render(conn, "results.html", %{
auth: auth
})
else
connector = if String.contains?(redirect_uri, "?"), do: "&", else: "?"
- url = "#{redirect_uri}#{connector}code=#{auth.token}"
+ url = "#{redirect_uri}#{connector}"
+ url_params = %{:code => auth.token}
- url =
+ url_params =
if params["state"] do
- url <> "&state=#{params["state"]}"
+ Map.put(url_params, :state, params["state"])
else
- url
+ url_params
end
+ url = "#{url}#{Plug.Conn.Query.encode url_params}"
+
redirect(conn, external: url)
end
end
end
# TODO
# - proper scope handling
def token_exchange(conn, %{"grant_type" => "authorization_code"} = params) do
with %App{} = app <- get_app_from_request(conn, params),
fixed_token = fix_padding(params["code"]),
%Authorization{} = auth <-
Repo.get_by(Authorization, token: fixed_token, app_id: app.id),
{:ok, token} <- Token.exchange_token(app, auth),
{:ok, inserted_at} <- DateTime.from_naive(token.inserted_at, "Etc/UTC") do
response = %{
token_type: "Bearer",
access_token: token.token,
refresh_token: token.refresh_token,
created_at: DateTime.to_unix(inserted_at),
expires_in: 60 * 10,
scope: "read write follow"
}
json(conn, response)
else
_error ->
put_status(conn, 400)
|> json(%{error: "Invalid credentials"})
end
end
# TODO
# - investigate a way to verify the user wants to grant read/write/follow once scope handling is done
def token_exchange(
conn,
%{"grant_type" => "password", "username" => name, "password" => password} = params
) do
with %App{} = app <- get_app_from_request(conn, params),
%User{} = user <- User.get_by_nickname_or_email(name),
true <- Pbkdf2.checkpw(password, user.password_hash),
{:ok, auth} <- Authorization.create_authorization(app, user),
{:ok, token} <- Token.exchange_token(app, auth) do
response = %{
token_type: "Bearer",
access_token: token.token,
refresh_token: token.refresh_token,
expires_in: 60 * 10,
scope: "read write follow"
}
json(conn, response)
else
_error ->
put_status(conn, 400)
|> json(%{error: "Invalid credentials"})
end
end
def token_exchange(
conn,
%{"grant_type" => "password", "name" => name, "password" => password} = params
) do
params =
params
|> Map.delete("name")
|> Map.put("username", name)
token_exchange(conn, params)
end
def token_revoke(conn, %{"token" => token} = params) do
with %App{} = app <- get_app_from_request(conn, params),
%Token{} = token <- Repo.get_by(Token, token: token, app_id: app.id),
{:ok, %Token{}} <- Repo.delete(token) do
json(conn, %{})
else
_error ->
# RFC 7009: invalid tokens [in the request] do not cause an error response
json(conn, %{})
end
end
defp fix_padding(token) do
token
|> Base.url_decode64!(padding: false)
|> Base.url_encode64()
end
defp get_app_from_request(conn, params) do
# Per RFC 6749, HTTP Basic is preferred to body params
{client_id, client_secret} =
with ["Basic " <> encoded] <- get_req_header(conn, "authorization"),
{:ok, decoded} <- Base.decode64(encoded),
[id, secret] <-
String.split(decoded, ":")
|> Enum.map(fn s -> URI.decode_www_form(s) end) do
{id, secret}
else
_ -> {params["client_id"], params["client_secret"]}
end
if client_id && client_secret do
Repo.get_by(
App,
client_id: client_id,
client_secret: client_secret
)
else
nil
end
end
end

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