mirror of
https://github.com/veeso/termscp.git
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242 lines
8.2 KiB
Rust
242 lines
8.2 KiB
Rust
//! ## Serializer
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//!
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//! `serializer` is the module which provides the serializer/deserializer for configuration
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/*
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*
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* Copyright (C) 2020-2021Christian Visintin - christian.visintin1997@gmail.com
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*
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* This file is part of "TermSCP"
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*
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* TermSCP 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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* TermSCP 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 TermSCP. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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use super::{SerializerError, SerializerErrorKind, UserConfig};
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use std::io::{Read, Write};
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pub struct ConfigSerializer {}
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impl ConfigSerializer {
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/// ### serialize
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///
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/// Serialize `UserConfig` into TOML and write content to writable
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pub fn serialize(
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&self,
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mut writable: Box<dyn Write>,
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cfg: &UserConfig,
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) -> Result<(), SerializerError> {
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// Serialize content
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let data: String = match toml::ser::to_string(cfg) {
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Ok(dt) => dt,
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Err(err) => {
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return Err(SerializerError::new_ex(
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SerializerErrorKind::SerializationError,
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err.to_string(),
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))
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}
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};
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// Write file
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match writable.write_all(data.as_bytes()) {
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Ok(_) => Ok(()),
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Err(err) => Err(SerializerError::new_ex(
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SerializerErrorKind::IoError,
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err.to_string(),
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)),
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}
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}
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/// ### deserialize
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///
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/// Read data from readable and deserialize its content as TOML
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pub fn deserialize(&self, mut readable: Box<dyn Read>) -> Result<UserConfig, SerializerError> {
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// Read file content
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let mut data: String = String::new();
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if let Err(err) = readable.read_to_string(&mut data) {
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return Err(SerializerError::new_ex(
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SerializerErrorKind::IoError,
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err.to_string(),
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));
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}
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// Deserialize
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match toml::de::from_str(data.as_str()) {
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Ok(hosts) => Ok(hosts),
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Err(err) => Err(SerializerError::new_ex(
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SerializerErrorKind::SyntaxError,
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err.to_string(),
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)),
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}
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}
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}
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// Tests
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#[cfg(test)]
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mod tests {
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use super::*;
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use std::io::{Seek, SeekFrom};
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use std::path::PathBuf;
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#[test]
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fn test_config_serializer_deserialize_ok() {
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let toml_file: tempfile::NamedTempFile = create_good_toml();
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toml_file.as_file().sync_all().unwrap();
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toml_file.as_file().seek(SeekFrom::Start(0)).unwrap();
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// Parse
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let deserializer: ConfigSerializer = ConfigSerializer {};
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let cfg = deserializer.deserialize(Box::new(toml_file));
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println!("{:?}", cfg);
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assert!(cfg.is_ok());
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let cfg: UserConfig = cfg.ok().unwrap();
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// Verify configuration
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// Verify ui
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assert_eq!(cfg.user_interface.default_protocol, String::from("SCP"));
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assert_eq!(cfg.user_interface.text_editor, PathBuf::from("vim"));
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assert_eq!(cfg.user_interface.show_hidden_files, true);
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assert_eq!(cfg.user_interface.group_dirs, Some(String::from("last")));
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// Verify keys
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assert_eq!(
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*cfg.remote
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.ssh_keys
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.get(&String::from("192.168.1.31"))
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.unwrap(),
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PathBuf::from("/home/omar/.ssh/raspberry.key")
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);
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assert_eq!(
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*cfg.remote
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.ssh_keys
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.get(&String::from("192.168.1.32"))
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.unwrap(),
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PathBuf::from("/home/omar/.ssh/beaglebone.key")
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);
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assert!(cfg.remote.ssh_keys.get(&String::from("1.1.1.1")).is_none());
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}
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#[test]
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fn test_config_serializer_deserialize_ok_no_opts() {
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let toml_file: tempfile::NamedTempFile = create_good_toml_no_opts();
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toml_file.as_file().sync_all().unwrap();
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toml_file.as_file().seek(SeekFrom::Start(0)).unwrap();
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// Parse
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let deserializer: ConfigSerializer = ConfigSerializer {};
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let cfg = deserializer.deserialize(Box::new(toml_file));
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println!("{:?}", cfg);
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assert!(cfg.is_ok());
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let cfg: UserConfig = cfg.ok().unwrap();
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// Verify configuration
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// Verify ui
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assert_eq!(cfg.user_interface.default_protocol, String::from("SCP"));
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assert_eq!(cfg.user_interface.text_editor, PathBuf::from("vim"));
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assert_eq!(cfg.user_interface.show_hidden_files, true);
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assert_eq!(cfg.user_interface.group_dirs, None);
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// Verify keys
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assert_eq!(
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*cfg.remote
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.ssh_keys
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.get(&String::from("192.168.1.31"))
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.unwrap(),
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PathBuf::from("/home/omar/.ssh/raspberry.key")
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);
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assert_eq!(
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*cfg.remote
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.ssh_keys
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.get(&String::from("192.168.1.32"))
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.unwrap(),
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PathBuf::from("/home/omar/.ssh/beaglebone.key")
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);
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assert!(cfg.remote.ssh_keys.get(&String::from("1.1.1.1")).is_none());
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}
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#[test]
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fn test_config_serializer_deserialize_nok() {
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let toml_file: tempfile::NamedTempFile = create_bad_toml();
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toml_file.as_file().sync_all().unwrap();
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toml_file.as_file().seek(SeekFrom::Start(0)).unwrap();
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// Parse
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let deserializer: ConfigSerializer = ConfigSerializer {};
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assert!(deserializer.deserialize(Box::new(toml_file)).is_err());
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}
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#[test]
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fn test_config_serializer_serialize() {
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let mut cfg: UserConfig = UserConfig::default();
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let toml_file: tempfile::NamedTempFile = tempfile::NamedTempFile::new().ok().unwrap();
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// Insert key
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cfg.remote.ssh_keys.insert(
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String::from("192.168.1.31"),
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PathBuf::from("/home/omar/.ssh/id_rsa"),
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);
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// Serialize
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let serializer: ConfigSerializer = ConfigSerializer {};
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let writer: Box<dyn Write> = Box::new(std::fs::File::create(toml_file.path()).unwrap());
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assert!(serializer.serialize(writer, &cfg).is_ok());
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// Reload configuration and check if it's ok
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toml_file.as_file().sync_all().unwrap();
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toml_file.as_file().seek(SeekFrom::Start(0)).unwrap();
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assert!(serializer.deserialize(Box::new(toml_file)).is_ok());
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}
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fn create_good_toml() -> tempfile::NamedTempFile {
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// Write
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let mut tmpfile: tempfile::NamedTempFile = tempfile::NamedTempFile::new().unwrap();
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let file_content: &str = r#"
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[user_interface]
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default_protocol = "SCP"
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text_editor = "vim"
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show_hidden_files = true
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group_dirs = "last"
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[remote.ssh_keys]
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"192.168.1.31" = "/home/omar/.ssh/raspberry.key"
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"192.168.1.32" = "/home/omar/.ssh/beaglebone.key"
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"#;
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tmpfile.write_all(file_content.as_bytes()).unwrap();
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tmpfile
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}
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fn create_good_toml_no_opts() -> tempfile::NamedTempFile {
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// Write
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let mut tmpfile: tempfile::NamedTempFile = tempfile::NamedTempFile::new().unwrap();
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let file_content: &str = r#"
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[user_interface]
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default_protocol = "SCP"
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text_editor = "vim"
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show_hidden_files = true
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[remote.ssh_keys]
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"192.168.1.31" = "/home/omar/.ssh/raspberry.key"
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"192.168.1.32" = "/home/omar/.ssh/beaglebone.key"
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"#;
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tmpfile.write_all(file_content.as_bytes()).unwrap();
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tmpfile
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}
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fn create_bad_toml() -> tempfile::NamedTempFile {
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// Write
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let mut tmpfile: tempfile::NamedTempFile = tempfile::NamedTempFile::new().unwrap();
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let file_content: &str = r#"
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[user_interface]
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default_protocol = "SFTP"
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[remote.ssh_keys]
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"192.168.1.31" = "/home/omar/.ssh/raspberry.key"
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"#;
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tmpfile.write_all(file_content.as_bytes()).unwrap();
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tmpfile
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}
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}
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