106 lines
2.8 KiB
Rust
106 lines
2.8 KiB
Rust
/*
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* meli
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*
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* Copyright 2017-2018 Manos Pitsidianakis
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*
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* This file is part of meli.
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*
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* meli is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* meli is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with meli. If not, see <http://www.gnu.org/licenses/>.
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*/
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use std::fs;
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use std::fs::OpenOptions;
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use std::io::{Read, Write};
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use std::os::unix::fs::PermissionsExt;
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use std::path::PathBuf;
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use uuid::Uuid;
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#[derive(Debug)]
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pub struct File {
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pub path: PathBuf,
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delete_on_drop: bool,
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}
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impl Drop for File {
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fn drop(&mut self) {
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if self.delete_on_drop {
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std::fs::remove_file(self.path()).unwrap_or_else(|_| {});
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}
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}
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}
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impl File {
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pub fn file(&self) -> std::fs::File {
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OpenOptions::new()
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.read(true)
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.write(true)
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.create(true)
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.open(&self.path)
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.unwrap()
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}
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pub fn path(&self) -> &PathBuf {
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&self.path
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}
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pub fn read_to_string(&self) -> String {
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let mut buf = Vec::new();
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let mut f = fs::File::open(&self.path)
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.unwrap_or_else(|_| panic!("Can't open {}", &self.path.display()));
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f.read_to_end(&mut buf)
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.unwrap_or_else(|_| panic!("Can't read {}", &self.path.display()));
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String::from_utf8(buf).unwrap()
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}
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}
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/// Returned `File` will be deleted when dropped if delete_on_drop is set, so make sure to add it on `context.temp_files`
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/// to reap it later.
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pub fn create_temp_file(
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bytes: &[u8],
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filename: Option<&str>,
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path: Option<&PathBuf>,
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delete_on_drop: bool,
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) -> File {
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let mut dir = std::env::temp_dir();
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let path = path.unwrap_or_else(|| {
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dir.push("meli");
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std::fs::DirBuilder::new()
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.recursive(true)
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.create(&dir)
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.unwrap();
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if let Some(filename) = filename {
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dir.push(filename)
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} else {
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let u = Uuid::new_v4();
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dir.push(u.to_hyphenated().to_string());
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}
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&dir
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});
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let mut f = std::fs::File::create(path).unwrap();
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let metadata = f.metadata().unwrap();
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let mut permissions = metadata.permissions();
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permissions.set_mode(0o600); // Read/write for owner only.
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f.set_permissions(permissions).unwrap();
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f.write_all(bytes).unwrap();
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f.flush().unwrap();
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File {
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path: path.clone(),
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delete_on_drop,
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}
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}
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