auth: auth
}
else
- url = "#{redirect_uri}?code=#{auth.token}"
+ connector = if String.contains?(redirect_uri, "?"), do: "&", else: "?"
+ url = "#{redirect_uri}#{connector}code=#{auth.token}"
url = if params["state"] do
url <> "&state=#{params["state"]}"
else
# - proper scope handling
def token_exchange(conn, %{"grant_type" => "authorization_code"} = params) do
with %App{} = app <- Repo.get_by(App, client_id: params["client_id"], client_secret: params["client_secret"]),
- %Authorization{} = auth <- Repo.get_by(Authorization, token: params["code"], app_id: app.id),
+ 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) do
response = %{
token_type: "Bearer",
scope: "read write follow"
}
json(conn, response)
+ else
+ _error -> json(conn, %{error: "Invalid credentials"})
end
end
+
+ defp fix_padding(token) do
+ token
+ |> Base.url_decode64!(padding: false)
+ |> Base.url_encode64
+ end
end