acecode/src/desktop/user_install_policy.cpp at master · tmoonlight/acecode · GitHub

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
#include "user_install_policy.hpp"

namespace acecode::desktop {

namespace {

namespace fs = std::filesystem;

fs::path normalize_absolute(const fs::path& path) {
    const auto generic = path.generic_string();
    if (generic.empty() || generic.front() != '/') return {};
    return path.lexically_normal();
}

} // namespace

UserInstallPaths macos_user_install_paths(const fs::path& home_directory) {
    UserInstallPaths paths;
    paths.home = normalize_absolute(home_directory);
    if (paths.home.empty()) return paths;

    paths.applications = paths.home / "Applications";
    paths.destination = paths.applications / "ACECode.app";
    return paths;
}

SystemInstallPaths macos_system_install_paths() {
    SystemInstallPaths paths;
    paths.applications = fs::path("/Applications");
    paths.destination = paths.applications / "ACECode.app";
    return paths;
}

bool macos_user_install_destination_is_safe(
    const fs::path& resolved_home,
    const fs::path& resolved_applications,
    const fs::path& resolved_destination) {
    const fs::path home = normalize_absolute(resolved_home);
    const fs::path applications = normalize_absolute(resolved_applications);
    const fs::path destination = normalize_absolute(resolved_destination);
    if (home.empty() || applications.empty() || destination.empty()) {
        return false;
    }

    const UserInstallPaths expected = macos_user_install_paths(home);
    return applications == expected.applications &&
           destination == expected.destination;
}

MacosInstallLocation macos_self_update_install_location(
    const fs::path& resolved_home,
    const fs::path& resolved_applications,
    const fs::path& resolved_destination) {
    const fs::path applications = normalize_absolute(resolved_applications);
    const fs::path destination = normalize_absolute(resolved_destination);
    if (applications.empty() || destination.empty()) {
        return MacosInstallLocation::unsupported;
    }

    const SystemInstallPaths system = macos_system_install_paths();
    if (applications == system.applications &&
        destination == system.destination) {
        return MacosInstallLocation::system_applications;
    }

    if (macos_user_install_destination_is_safe(
            resolved_home, applications, destination)) {
        return MacosInstallLocation::user_applications;
    }
    return MacosInstallLocation::unsupported;
}

} // namespace acecode::desktop