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diff --git a/lib/pleroma/config/release_runtime_provider.ex b/lib/pleroma/config/release_runtime_provider.ex
index 91e5f1a54..9ec0f975e 100644
--- a/lib/pleroma/config/release_runtime_provider.ex
+++ b/lib/pleroma/config/release_runtime_provider.ex
@@ -1,56 +1,70 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Config.ReleaseRuntimeProvider do
@moduledoc """
Imports runtime config and `{env}.exported_from_db.secret.exs` for releases.
"""
@behaviour Config.Provider
@impl true
def init(opts), do: opts
@impl true
def load(config, opts) do
with_defaults = Config.Reader.merge(config, Pleroma.Config.Holder.release_defaults())
config_path =
opts[:config_path] || System.get_env("PLEROMA_CONFIG_PATH") || "/etc/pleroma/config.exs"
with_runtime_config =
if File.exists?(config_path) do
+ # <https://git.pleroma.social/pleroma/pleroma/-/issues/3135>
+ %File.Stat{mode: mode} = File.lstat!(config_path)
+
+ if Bitwise.band(mode, 0o007) > 0 do
+ raise "Configuration at #{config_path} has world-permissions, execute the following: chmod o= #{config_path}"
+ end
+
+ if Bitwise.band(mode, 0o020) > 0 do
+ raise "Configuration at #{config_path} has group-wise write permissions, execute the following: chmod g-w #{config_path}"
+ end
+
+ # Note: Elixir doesn't provides a getuid(2)
+ # so cannot forbid group-read only when config is owned by us
+
runtime_config = Config.Reader.read!(config_path)
with_defaults
|> Config.Reader.merge(pleroma: [config_path: config_path])
|> Config.Reader.merge(runtime_config)
else
warning = [
IO.ANSI.red(),
IO.ANSI.bright(),
"!!! Config path is not declared! Please ensure it exists and that PLEROMA_CONFIG_PATH is unset or points to an existing file",
IO.ANSI.reset()
]
IO.puts(warning)
with_defaults
end
exported_config_path =
opts[:exported_config_path] ||
config_path
|> Path.dirname()
|> Path.join("#{Pleroma.Config.get(:env)}.exported_from_db.secret.exs")
with_exported =
if File.exists?(exported_config_path) do
exported_config = Config.Reader.read!(exported_config_path)
Config.Reader.merge(with_runtime_config, exported_config)
else
with_runtime_config
end
with_exported
end
end

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