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Userland+Meta: Add new helper program for network settings

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This little program allows us to take the NetworkSettings app away
from being an elevated GUI app.

It receives a JsonObject on STDIN and writes it to the global
Network configuration file.

If the write was successfull it will apply the changes.
This commit is contained in:
Fabian Dellwing 2023-04-27 21:01:05 +02:00 • committed by Andrew Kaster
parent 041e29e585
commit 639aee037f
3 changed files with 70 additions and 1 deletions
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63
Userland/Utilities/network-settings.cpp Normal file
View file

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/*
* Copyright (c) 2023, Fabian Dellwing <fabian@dellwing.net>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/JsonObject.h>
#include <AK/JsonParser.h>
#include <LibCore/ConfigFile.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <unistd.h>
ErrorOr<int> serenity_main(Main::Arguments)
{
TRY(Core::System::pledge("stdio rpath wpath cpath recvfd sendfd proc exec"));
TRY(Core::System::unveil("/bin/NetworkServer", "x"));
TRY(Core::System::unveil("/etc/Network.ini", "rwc"));
TRY(Core::System::unveil(nullptr, nullptr));
auto infile = TRY(Core::File::standard_input());
auto input_bytes = TRY(infile->read_until_eof());
StringView json_data = input_bytes;
if (json_data.is_empty() || json_data.is_whitespace())
return Error::from_errno(EINVAL);
auto json = TRY(JsonParser(json_data).parse());
if (!json.is_object())
return Error::from_errno(EINVAL);
auto json_object = json.as_object();
auto config_file = TRY(Core::ConfigFile::open_for_system("Network", Core::ConfigFile::AllowWriting::Yes));
json_object.for_each_member([&](DeprecatedString const& adapter_name, JsonValue const& adapter_data) {
adapter_data.as_object().for_each_member([&](const DeprecatedString& key, const JsonValue& value) {
switch (value.type()) {
case JsonValue::Type::String:
config_file->write_entry(adapter_name, key, value.as_string());
break;
case JsonValue::Type::Bool:
config_file->write_bool_entry(adapter_name, key, value.as_bool());
break;
case JsonValue::Type::Null:
break;
default:
dbgln("Extend switch/case key={}, value={}", key, value);
VERIFY_NOT_REACHED();
}
});
});
TRY(config_file->sync());
// FIXME: This should be done in a nicer way, but for that out NetworkServer implementation needs to actually be a server that we can talk to and not just a oneshot binary.
auto command = Vector<StringView>();
TRY(command.try_append("/bin/NetworkServer"sv));
TRY(Core::System::exec_command(command, true));
return 0;
}