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

// Copyright 2019-2021 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT

//! Tauri utility helpers
#![warn(missing_docs, rust_2018_idioms)]

pub mod assets;
pub mod config;
pub mod html;
pub mod platform;
/// Prepare application resources and sidecars.
#[cfg(feature = "resources")]
pub mod resources;

/// Application pattern.
pub mod pattern;

/// `tauri::App` package information.
#[derive(Debug, Clone)]
pub struct PackageInfo {
  /// App name
  pub name: String,
  /// App version
  pub version: String,
  /// The crate authors.
  pub authors: &'static str,
  /// The crate description.
  pub description: &'static str,
}

impl PackageInfo {
  /// Returns the application package name.
  /// On macOS and Windows it's the `name` field, and on Linux it's the `name` in `kebab-case`.
  pub fn package_name(&self) -> String {
    #[cfg(target_os = "linux")]
    {
      use heck::ToKebabCase;
      self.name.clone().to_kebab_case()
    }
    #[cfg(not(target_os = "linux"))]
    self.name.clone()
  }
}

/// Information about environment variables.
#[derive(Debug, Clone)]
#[non_exhaustive]
pub struct Env {
  /// The APPIMAGE environment variable.
  #[cfg(target_os = "linux")]
  pub appimage: Option<std::ffi::OsString>,
  /// The APPDIR environment variable.
  #[cfg(target_os = "linux")]
  pub appdir: Option<std::ffi::OsString>,
}

#[allow(clippy::derivable_impls)]
impl Default for Env {
  fn default() -> Self {
    #[cfg(target_os = "linux")]
    {
      let env = Self {
        #[cfg(target_os = "linux")]
        appimage: std::env::var_os("APPIMAGE"),
        #[cfg(target_os = "linux")]
        appdir: std::env::var_os("APPDIR"),
      };
      if env.appimage.is_some() || env.appdir.is_some() {
        // validate that we're actually running on an AppImage
        // an AppImage is mounted to `/$TEMPDIR/.mount_${appPrefix}${hash}`
        // see https://github.com/AppImage/AppImageKit/blob/1681fd84dbe09c7d9b22e13cdb16ea601aa0ec47/src/runtime.c#L501
        // note that it is safe to use `std::env::current_exe` here since we just loaded an AppImage.
        let is_temp = std::env::current_exe()
          .map(|p| {
            p.display()
              .to_string()
              .starts_with(&format!("{}/.mount_", std::env::temp_dir().display()))
          })
          .unwrap_or(true);

        if !is_temp {
          panic!("`APPDIR` or `APPIMAGE` environment variable found but this application was not detected as an AppImage; this might be a security issue.");
        }
      }
      env
    }
    #[cfg(not(target_os = "linux"))]
    {
      Self {}
    }
  }
}

/// The result type of `tauri-utils`.
pub type Result<T> = std::result::Result<T, Error>;

/// The error type of `tauri-utils`.
#[derive(Debug, thiserror::Error)]
#[non_exhaustive]
pub enum Error {
  /// Target triple architecture error
  #[error("Unable to determine target-architecture")]
  Architecture,
  /// Target triple OS error
  #[error("Unable to determine target-os")]
  Os,
  /// Target triple environment error
  #[error("Unable to determine target-environment")]
  Environment,
  /// Tried to get resource on an unsupported platform
  #[error("Unsupported platform for reading resources")]
  UnsupportedPlatform,
  /// Get parent process error
  #[error("Could not get parent process")]
  ParentProcess,
  /// Get parent process PID error
  #[error("Could not get parent PID")]
  ParentPid,
  /// Get child process error
  #[error("Could not get child process")]
  ChildProcess,
  /// IO error
  #[error("{0}")]
  Io(#[from] std::io::Error),
  /// Invalid pattern.
  #[error("invalid pattern `{0}`. Expected either `brownfield` or `isolation`.")]
  InvalidPattern(String),
  /// Invalid glob pattern.
  #[cfg(feature = "resources")]
  #[error("{0}")]
  GlobPattern(#[from] glob::PatternError),
  /// Failed to use glob pattern.
  #[cfg(feature = "resources")]
  #[error("`{0}`")]
  Glob(#[from] glob::GlobError),
  /// Glob pattern did not find any results.
  #[cfg(feature = "resources")]
  #[error("path matching {0} not found.")]
  GlobPathNotFound(String),
  /// Error walking directory.
  #[cfg(feature = "resources")]
  #[error("{0}")]
  WalkdirError(#[from] walkdir::Error),
  /// Not allowed to walk dir.
  #[cfg(feature = "resources")]
  #[error("could not walk directory `{0}`, try changing `allow_walk` to true on the `ResourcePaths` constructor.")]
  NotAllowedToWalkDir(std::path::PathBuf),
}