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0.1.2-beta Добавлено: 8 нояб. 2026 г., 02:53 · Построено: 7 нояб. 2026 г., 19:32

launcher.rs Добавлено: Дата нерегистрации 6,2 KB · 126 Линии

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1//! Installer hand-off (port of `updates/updateInstallerLauncher.js`).

2//! Windows/macOS: the verified EXE/DMG is opened by the OS (launched ≠ installed).

3//! Linux: fixed `/usr/bin/pkexec /usr/bin/apt-get install --reinstall --yes <verified .deb>`,

4//! no shell, root-owned non-writable executables, 30 min timeout.

6use crate::core::error::{CoreError, CoreResult};

7use std::path::Path;

8use std::time::Duration;

10pub const PKEXEC_PATH: &str = "/usr/bin/pkexec";

11pub const APT_GET_PATH: &str = "/usr/bin/apt-get";

13#[derive(Debug, Clone, Copy, PartialEq, Eq)]

14pub struct LaunchResult {

15 pub launched: bool,

16 pub installed: bool,

17 pub restart: bool,

18}

20fn install_error(code: &str, message: &str) -> CoreError {

21 CoreError::new(code, message)

22}

24pub fn assert_safe_regular_file(path: &Path, label: &str) -> CoreResult<std::fs::Metadata> {

25 if !path.is_absolute() {

26 return Err(install_error("UPDATE_INSTALL_UNSAFE_PATH", &format!("{label} path must be absolute.")));

27 }

    let meta = std::fs::symlink_metadata(path).map_err(|_| install_error("UPDATE_INSTALL_FILE_MISSING", &format!("{label} is missing.")))?;

29 #[cfg(unix)]

30 let links = {

31 use std::os::unix::fs::MetadataExt;

32 meta.nlink()

33 };

34 #[cfg(not(unix))]

35 let links = 1;

36 if !meta.is_file() || meta.file_type().is_symlink() || links != 1 || meta.len() == 0 {

37 return Err(install_error("UPDATE_INSTALL_UNSAFE_PATH", &format!("{label} must be a non-empty regular file.")));

38 }

39 Ok(meta)

40}

42#[cfg(unix)]

43pub fn assert_trusted_system_executable(path: &Path) -> CoreResult<()> {

44 use std::os::unix::fs::MetadataExt;

45 let meta = assert_safe_regular_file(path, "System installer executable")?;

46 if meta.uid() != 0 {

        return Err(install_error("UPDATE_INSTALL_UNSAFE_EXECUTABLE", "System installer executable is not owned by root."));

48 }

49 if meta.mode() & 0o111 == 0 {

50 return Err(install_error("UPDATE_INSTALL_UNSAFE_EXECUTABLE", "System installer executable is not executable."));

51 }

52 if meta.mode() & 0o022 != 0 {

        return Err(install_error("UPDATE_INSTALL_UNSAFE_EXECUTABLE", "System installer executable is writable by an untrusted account."));

54 }

55 Ok(())

56}

pub async fn install(app: &tauri::AppHandle, path: &Path, logger: &crate::core::logging::Logger) -> CoreResult<LaunchResult> {

59 if cfg!(target_os = "linux") {

60 return install_deb(path, logger).await;

61 }

62 use tauri_plugin_opener::OpenerExt;

    app.opener().open_path(path.to_string_lossy(), None::<&str>).map_err(|e| install_error("UPDATE_INSTALL_FAILED", &format!("The installer could not be opened: {e}")))?;

64 Ok(LaunchResult { launched: true, installed: false, restart: false })

65}

67#[cfg(unix)]

68async fn install_deb(path: &Path, logger: &crate::core::logging::Logger) -> CoreResult<LaunchResult> {

69 if !path.is_absolute() {

        return Err(install_error("UPDATE_INSTALL_UNSAFE_PATH", "Verified Debian update package path must be absolute."));

71 }

72 if path.extension().map(|e| e.to_string_lossy().to_lowercase()) != Some("deb".into()) {

73 return Err(install_error("UPDATE_INSTALL_UNSUPPORTED_PACKAGE", "Linux updates must use a Debian package."));

74 }

75 assert_safe_regular_file(path, "Verified Debian update package")?;

76 assert_trusted_system_executable(Path::new(PKEXEC_PATH))?;

77 assert_trusted_system_executable(Path::new(APT_GET_PATH))?;

78 let name = path.file_name().map(|n| n.to_string_lossy().to_string()).unwrap_or_default();

79 logger.info("Starting privileged Debian update installation.", serde_json::json!({ "filename": name }));

80 let mut command = tokio::process::Command::new(PKEXEC_PATH);

    command.args([APT_GET_PATH, "install", "--reinstall", "--yes"]).arg(path).stdin(std::process::Stdio::null()).stdout(std::process::Stdio::piped()).stderr(std::process::Stdio::piped()).kill_on_drop(true);

    let child = command.spawn().map_err(|_| install_error("UPDATE_INSTALL_LAUNCH_FAILED", "The privileged installer could not be started."))?;

83 let output = tokio::time::timeout(Duration::from_secs(30 * 60), child.wait_with_output())

84 .await

85 .map_err(|_| install_error("UPDATE_INSTALL_TIMEOUT", "The Debian update installation timed out."))?

86 .map_err(|_| install_error("UPDATE_INSTALL_LAUNCH_FAILED", "The privileged installer could not be started."))?;

87 if output.status.code() == Some(0) {

88 logger.info("Debian update installation completed.", serde_json::json!({ "filename": name }));

89 return Ok(LaunchResult { launched: true, installed: true, restart: true });

90 }

91 let denied = matches!(output.status.code(), Some(126) | Some(127));

92 let text = format!("{}\n{}", String::from_utf8_lossy(&output.stdout), String::from_utf8_lossy(&output.stderr));

93 let tail: String = text.trim().chars().rev().take(4096).collect::<Vec<_>>().into_iter().rev().collect();

    logger.warn("Debian update installation failed.", serde_json::json!({ "code": output.status.code(), "output": tail }));

95 Err(if denied {

        install_error("UPDATE_INSTALL_AUTHORIZATION_DENIED", "Administrator authorization for the update was canceled or denied.")

97 } else {

98 install_error("UPDATE_INSTALL_FAILED", "The Debian update installation failed.")

99 })

100}

101

102#[cfg(not(unix))]

103async fn install_deb(_path: &Path, _logger: &crate::core::logging::Logger) -> CoreResult<LaunchResult> {

104 Err(install_error("UPDATE_INSTALL_UNSUPPORTED_PACKAGE", "Linux updates must use a Debian package."))

105}

106

107#[cfg(all(test, unix))]

108mod tests {

109 use super::*;

110

111 #[test]

112 fn unsafe_files_rejected() {

113 let dir = tempfile::tempdir().unwrap();

114

        assert_eq!(assert_safe_regular_file(Path::new("relative.deb"), "x").unwrap_err().code, "UPDATE_INSTALL_UNSAFE_PATH");

115 let file = dir.path().join("a.deb");

116 std::fs::write(&file, b"x").unwrap();

117 let link = dir.path().join("b.deb");

118 std::os::unix::fs::symlink(&file, &link).unwrap();

119 assert!(assert_safe_regular_file(&file, "x").is_ok());

120 assert!(assert_safe_regular_file(&link, "x").is_err());

121 // A file owned by the current (non-root) user is not a trusted system executable.

122 if unsafe { libc::getuid() } != 0 {

123 assert_eq!(assert_trusted_system_executable(&file).unwrap_err().code, "UPDATE_INSTALL_UNSAFE_EXECUTABLE");

124 }

125 }

126}

127

SHA-256

ff6c1a3267969b2be18e54a3e5c602f72f7085007412e9529ea3e856784fa8e9

CH-J Proprietary Software License 1.14 · Источник представлен в CH-J Proprietary Software License 1.14. Его наличие не изменяет лицензионных условий и не предоставляет дополнительных прав.

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ac8fe790f4ba60fc098f8c985fc2656cfcc6cdc21fb34b30e308a2b54e62258f

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