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use bitflags::bitflags;
bitflags! {
struct FileTypeFlags: u32 {
const DIR = 0o040000;
const FILE = 0o100000;
const SYMLINK = 0o120000;
}
}
bitflags! {
struct FilePermissionFlags: u32 {
const OWNER_READ = 0o400;
const OWNER_WRITE = 0o200;
const OWNER_EXEC = 0o100;
const GROUP_READ = 0o40;
const GROUP_WRITE = 0o20;
const GROUP_EXEC = 0o10;
const OTHER_READ = 0o4;
const OTHER_WRITE = 0o2;
const OTHER_EXEC = 0o1;
}
}
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq)]
pub enum FileType {
Dir,
File,
Symlink,
Other,
}
impl FileType {
pub fn is_dir(self) -> bool {
matches!(self, Self::Dir)
}
pub fn is_file(self) -> bool {
matches!(self, Self::File)
}
pub fn is_symlink(self) -> bool {
matches!(self, Self::Symlink)
}
pub fn from_unix_mode(mode: u32) -> Self {
let flags = FileTypeFlags::from_bits_truncate(mode);
if flags.contains(FileTypeFlags::DIR) {
Self::Dir
} else if flags.contains(FileTypeFlags::FILE) {
Self::File
} else if flags.contains(FileTypeFlags::SYMLINK) {
Self::Symlink
} else {
Self::Other
}
}
pub fn to_unix_mode(self) -> u32 {
let flags = match self {
FileType::Dir => FileTypeFlags::DIR,
FileType::File => FileTypeFlags::FILE,
FileType::Symlink => FileTypeFlags::SYMLINK,
FileType::Other => FileTypeFlags::empty(),
};
flags.bits
}
}
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq)]
pub struct FilePermissions {
pub owner_read: bool,
pub owner_write: bool,
pub owner_exec: bool,
pub group_read: bool,
pub group_write: bool,
pub group_exec: bool,
pub other_read: bool,
pub other_write: bool,
pub other_exec: bool,
}
impl FilePermissions {
pub fn is_readonly(self) -> bool {
!(self.owner_read || self.group_read || self.other_read)
}
pub fn from_unix_mode(mode: u32) -> Self {
let flags = FilePermissionFlags::from_bits_truncate(mode);
Self {
owner_read: flags.contains(FilePermissionFlags::OWNER_READ),
owner_write: flags.contains(FilePermissionFlags::OWNER_WRITE),
owner_exec: flags.contains(FilePermissionFlags::OWNER_EXEC),
group_read: flags.contains(FilePermissionFlags::GROUP_READ),
group_write: flags.contains(FilePermissionFlags::GROUP_WRITE),
group_exec: flags.contains(FilePermissionFlags::GROUP_EXEC),
other_read: flags.contains(FilePermissionFlags::OTHER_READ),
other_write: flags.contains(FilePermissionFlags::OTHER_WRITE),
other_exec: flags.contains(FilePermissionFlags::OTHER_EXEC),
}
}
pub fn to_unix_mode(self) -> u32 {
let mut flags = FilePermissionFlags::empty();
if self.owner_read {
flags.insert(FilePermissionFlags::OWNER_READ);
}
if self.owner_write {
flags.insert(FilePermissionFlags::OWNER_WRITE);
}
if self.owner_exec {
flags.insert(FilePermissionFlags::OWNER_EXEC);
}
if self.group_read {
flags.insert(FilePermissionFlags::GROUP_READ);
}
if self.group_write {
flags.insert(FilePermissionFlags::GROUP_WRITE);
}
if self.group_exec {
flags.insert(FilePermissionFlags::GROUP_EXEC);
}
if self.other_read {
flags.insert(FilePermissionFlags::OTHER_READ);
}
if self.other_write {
flags.insert(FilePermissionFlags::OTHER_WRITE);
}
if self.other_exec {
flags.insert(FilePermissionFlags::OTHER_EXEC);
}
flags.bits
}
}
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq)]
pub struct Metadata {
pub ty: FileType,
pub permissions: Option<FilePermissions>,
pub size: Option<u64>,
pub uid: Option<u32>,
pub gid: Option<u32>,
pub accessed: Option<u64>,
pub modified: Option<u64>,
}
impl Metadata {
pub fn is_dir(self) -> bool {
self.ty.is_dir()
}
pub fn is_file(self) -> bool {
self.ty.is_file()
}
pub fn is_symlink(self) -> bool {
self.ty.is_symlink()
}
}
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq)]
pub struct OpenOptions {
pub read: bool,
pub write: Option<WriteMode>,
pub mode: i32,
pub ty: OpenFileType,
}
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq)]
pub enum OpenFileType {
Dir,
File,
}
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq)]
pub enum WriteMode {
Append,
Write,
}
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq)]
pub struct RenameOptions {
pub overwrite: bool,
pub atomic: bool,
pub native: bool,
}
impl Default for RenameOptions {
fn default() -> Self {
Self {
overwrite: true,
atomic: true,
native: true,
}
}
}
#[cfg(feature = "ssh2")]
mod ssh2_impl {
use super::*;
use ::ssh2::{
FileStat as Ssh2FileStat, FileType as Ssh2FileType, OpenFlags as Ssh2OpenFlags,
OpenType as Ssh2OpenType, RenameFlags as Ssh2RenameFlags,
};
impl From<OpenFileType> for Ssh2OpenType {
fn from(ty: OpenFileType) -> Self {
match ty {
OpenFileType::Dir => Self::Dir,
OpenFileType::File => Self::File,
}
}
}
impl From<RenameOptions> for Ssh2RenameFlags {
fn from(opts: RenameOptions) -> Self {
let mut flags = Self::empty();
if opts.overwrite {
flags |= Self::OVERWRITE;
}
if opts.atomic {
flags |= Self::ATOMIC;
}
if opts.native {
flags |= Self::NATIVE;
}
flags
}
}
impl From<OpenOptions> for Ssh2OpenFlags {
fn from(opts: OpenOptions) -> Self {
let mut flags = Self::empty();
if opts.read {
flags |= Self::READ;
}
match opts.write {
Some(WriteMode::Write) => flags |= Self::WRITE | Self::TRUNCATE,
Some(WriteMode::Append) => flags |= Self::WRITE | Self::APPEND | Self::CREATE,
None => {}
}
flags
}
}
impl From<Ssh2FileType> for FileType {
fn from(ft: Ssh2FileType) -> Self {
if ft.is_dir() {
Self::Dir
} else if ft.is_file() {
Self::File
} else if ft.is_symlink() {
Self::Symlink
} else {
Self::Other
}
}
}
impl From<Ssh2FileStat> for Metadata {
fn from(stat: Ssh2FileStat) -> Self {
Self {
ty: FileType::from(stat.file_type()),
permissions: stat.perm.map(FilePermissions::from_unix_mode),
size: stat.size,
uid: stat.uid,
gid: stat.gid,
accessed: stat.atime,
modified: stat.mtime,
}
}
}
impl From<Metadata> for Ssh2FileStat {
fn from(metadata: Metadata) -> Self {
let ft = metadata.ty;
Self {
perm: metadata
.permissions
.map(|p| p.to_unix_mode() | ft.to_unix_mode()),
size: metadata.size,
uid: metadata.uid,
gid: metadata.gid,
atime: metadata.accessed,
mtime: metadata.modified,
}
}
}
}
#[cfg(feature = "libssh-rs")]
mod libssh_impl {
use super::*;
use std::time::SystemTime;
impl From<libssh_rs::FileType> for FileType {
fn from(ft: libssh_rs::FileType) -> Self {
match ft {
libssh_rs::FileType::Directory => Self::Dir,
libssh_rs::FileType::Regular => Self::File,
libssh_rs::FileType::Symlink => Self::Symlink,
_ => Self::Other,
}
}
}
fn sys_time_to_unix(t: SystemTime) -> u64 {
t.duration_since(SystemTime::UNIX_EPOCH)
.expect("UNIX_EPOCH < SystemTime")
.as_secs()
}
fn unix_to_sys(u: u64) -> SystemTime {
SystemTime::UNIX_EPOCH + std::time::Duration::from_secs(u)
}
impl From<libssh_rs::Metadata> for Metadata {
fn from(stat: libssh_rs::Metadata) -> Self {
Self {
ty: stat
.file_type()
.map(FileType::from)
.unwrap_or(FileType::Other),
permissions: stat.permissions().map(FilePermissions::from_unix_mode),
size: stat.len(),
uid: stat.uid(),
gid: stat.gid(),
accessed: stat.accessed().map(sys_time_to_unix),
modified: stat.modified().map(sys_time_to_unix),
}
}
}
impl Into<libssh_rs::SetAttributes> for Metadata {
fn into(self) -> libssh_rs::SetAttributes {
let size = self.size;
let uid_gid = match (self.uid, self.gid) {
(Some(uid), Some(gid)) => Some((uid, gid)),
_ => None,
};
let permissions = self.permissions.map(FilePermissions::to_unix_mode);
let atime_mtime = match (self.accessed, self.modified) {
(Some(a), Some(m)) => {
let a = unix_to_sys(a);
let m = unix_to_sys(m);
Some((a, m))
}
_ => None,
};
libssh_rs::SetAttributes {
size,
uid_gid,
permissions,
atime_mtime,
}
}
}
}