1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/*
* Copyright (c) 2021, timmot <tiwwot@protonmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
// FIXME: LibIPC Decoder and Encoder are sensitive to include order here
// clang-format off
#include <LibGUI/WindowServerConnection.h>
// clang-format on
#include <AK/Debug.h>
#include <FileSystemAccessServer/ClientConnection.h>
#include <LibCore/File.h>
#include <LibCore/IODevice.h>
#include <LibGUI/Application.h>
#include <LibGUI/FilePicker.h>
#include <LibGUI/MessageBox.h>
namespace FileSystemAccessServer {
static HashMap<int, NonnullRefPtr<ClientConnection>> s_connections;
ClientConnection::ClientConnection(NonnullOwnPtr<Core::Stream::LocalSocket> socket)
: IPC::ClientConnection<FileSystemAccessClientEndpoint, FileSystemAccessServerEndpoint>(*this, move(socket), 1)
{
s_connections.set(1, *this);
}
ClientConnection::~ClientConnection()
{
}
void ClientConnection::die()
{
s_connections.remove(client_id());
GUI::Application::the()->quit();
}
RefPtr<GUI::Window> ClientConnection::create_dummy_child_window(i32 window_server_client_id, i32 parent_window_id)
{
auto window = GUI::Window::construct();
window->set_opacity(0);
window->set_frameless(true);
auto rect = GUI::WindowServerConnection::the().get_window_rect_from_client(window_server_client_id, parent_window_id);
window->set_rect(rect);
window->show();
GUI::WindowServerConnection::the().async_set_window_parent_from_client(window_server_client_id, parent_window_id, window->window_id());
return window;
}
void ClientConnection::request_file_handler(i32 window_server_client_id, i32 parent_window_id, String const& path, Core::OpenMode const& requested_access, ShouldPrompt prompt)
{
VERIFY(path.starts_with("/"sv));
bool approved = false;
auto maybe_permissions = m_approved_files.get(path);
auto relevant_permissions = requested_access & (Core::OpenMode::ReadOnly | Core::OpenMode::WriteOnly);
VERIFY(relevant_permissions != Core::OpenMode::NotOpen);
if (maybe_permissions.has_value())
approved = has_flag(maybe_permissions.value(), relevant_permissions);
if (!approved) {
String access_string;
if (has_flag(requested_access, Core::OpenMode::ReadWrite))
access_string = "read and write";
else if (has_flag(requested_access, Core::OpenMode::ReadOnly))
access_string = "read from";
else if (has_flag(requested_access, Core::OpenMode::WriteOnly))
access_string = "write to";
auto pid = this->socket().peer_pid().release_value_but_fixme_should_propagate_errors();
auto exe_link = LexicalPath("/proc").append(String::number(pid)).append("exe").string();
auto exe_path = Core::File::real_path_for(exe_link);
auto main_window = create_dummy_child_window(window_server_client_id, parent_window_id);
if (prompt == ShouldPrompt::Yes) {
auto exe_name = LexicalPath::basename(exe_path);
auto result = GUI::MessageBox::show(main_window, String::formatted("Allow {} ({}) to {} \"{}\"?", exe_name, pid, access_string, path), "File Permissions Requested", GUI::MessageBox::Type::Warning, GUI::MessageBox::InputType::YesNo);
approved = result == GUI::MessageBox::ExecYes;
} else {
approved = true;
}
if (approved) {
auto new_permissions = relevant_permissions;
if (maybe_permissions.has_value())
new_permissions |= maybe_permissions.value();
m_approved_files.set(path, new_permissions);
}
}
if (approved) {
auto file = Core::File::open(path, requested_access);
if (file.is_error()) {
dbgln("FileSystemAccessServer: Couldn't open {}, error {}", path, file.error());
async_handle_prompt_end(errno, Optional<IPC::File> {}, path);
} else {
async_handle_prompt_end(0, IPC::File(file.value()->leak_fd(), IPC::File::CloseAfterSending), path);
}
} else {
async_handle_prompt_end(-1, Optional<IPC::File> {}, path);
}
}
void ClientConnection::request_file_read_only_approved(i32 window_server_client_id, i32 parent_window_id, String const& path)
{
request_file_handler(window_server_client_id, parent_window_id, path, Core::OpenMode::ReadOnly, ShouldPrompt::No);
}
void ClientConnection::request_file(i32 window_server_client_id, i32 parent_window_id, String const& path, Core::OpenMode const& requested_access)
{
request_file_handler(window_server_client_id, parent_window_id, path, requested_access, ShouldPrompt::Yes);
}
void ClientConnection::prompt_open_file(i32 window_server_client_id, i32 parent_window_id, String const& window_title, String const& path_to_view, Core::OpenMode const& requested_access)
{
auto relevant_permissions = requested_access & (Core::OpenMode::ReadOnly | Core::OpenMode::WriteOnly);
VERIFY(relevant_permissions != Core::OpenMode::NotOpen);
auto main_window = create_dummy_child_window(window_server_client_id, parent_window_id);
auto user_picked_file = GUI::FilePicker::get_open_filepath(main_window, window_title, path_to_view);
prompt_helper(user_picked_file, requested_access);
}
void ClientConnection::prompt_save_file(i32 window_server_client_id, i32 parent_window_id, String const& name, String const& ext, String const& path_to_view, Core::OpenMode const& requested_access)
{
auto relevant_permissions = requested_access & (Core::OpenMode::ReadOnly | Core::OpenMode::WriteOnly);
VERIFY(relevant_permissions != Core::OpenMode::NotOpen);
auto main_window = create_dummy_child_window(window_server_client_id, parent_window_id);
auto user_picked_file = GUI::FilePicker::get_save_filepath(main_window, name, ext, path_to_view);
prompt_helper(user_picked_file, requested_access);
}
void ClientConnection::prompt_helper(Optional<String> const& user_picked_file, Core::OpenMode const& requested_access)
{
if (user_picked_file.has_value()) {
VERIFY(user_picked_file->starts_with("/"sv));
auto file = Core::File::open(user_picked_file.value(), requested_access);
if (file.is_error()) {
dbgln("FileSystemAccessServer: Couldn't open {}, error {}", user_picked_file.value(), file.error());
async_handle_prompt_end(errno, Optional<IPC::File> {}, user_picked_file);
} else {
auto maybe_permissions = m_approved_files.get(user_picked_file.value());
auto new_permissions = requested_access & (Core::OpenMode::ReadOnly | Core::OpenMode::WriteOnly);
if (maybe_permissions.has_value())
new_permissions |= maybe_permissions.value();
m_approved_files.set(user_picked_file.value(), new_permissions);
async_handle_prompt_end(0, IPC::File(file.value()->leak_fd(), IPC::File::CloseAfterSending), user_picked_file);
}
} else {
async_handle_prompt_end(-1, Optional<IPC::File> {}, Optional<String> {});
}
}
Messages::FileSystemAccessServer::ExposeWindowServerClientIdResponse ClientConnection::expose_window_server_client_id()
{
return GUI::WindowServerConnection::the().expose_client_id();
}
}
|
