#![allow(clippy::non_ascii_literal)]
use crate::userlib::NewFromString;
use log::warn;
use crate::UserLibError;
use std::convert::TryFrom;
use std::fmt::{self, Debug, Display};
use std::{cmp::Eq, rc::Rc};
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
pub enum Membership {
Primary,
Member,
}
#[derive(Debug, PartialEq, Eq)]
pub struct Groupname {
groupname: String,
}
impl Display for Groupname {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}", self.groupname,)
}
}
impl TryFrom<String> for Groupname {
type Error = UserLibError;
fn try_from(source: String) -> std::result::Result<Self, Self::Error> {
if is_groupname_valid(&source) {
Ok(Self { groupname: source })
} else if source == "Debian-exim" {
warn!("username {} is not a valid username. This might cause problems. (It is default in Debian and Ubuntu)", source);
Ok(Self { groupname: source })
} else {
Err(format!("Invalid groupname -{}-", source).into())
}
}
}
pub(crate) fn is_groupname_valid(name: &str) -> bool {
crate::user::passwd_fields::is_username_valid(name)
}
pub type Group = Rc<Inner>;
#[derive(Debug, PartialEq, Eq)]
pub struct Inner {
pos: u32,
source: String,
groupname: Groupname,
pub(crate) password: crate::Password,
gid: crate::Gid,
members: Vec<crate::Username>,
}
impl Inner {
#[must_use]
pub fn remove_in(&self, content: &str) -> String {
content
.split(&self.source)
.map(str::trim)
.collect::<Vec<&str>>()
.join("\n")
}
}
use crate::api::GroupRead;
impl GroupRead for Inner {
#[must_use]
fn get_groupname(&self) -> Option<&str> {
Some(&self.groupname.groupname)
}
#[must_use]
fn get_member_names(&self) -> Option<Vec<&str>> {
let mut r: Vec<&str> = Vec::new();
for u in &self.members {
r.push(&u.username);
}
Some(r)
}
fn get_gid(&self) -> Option<u32> {
Some(self.gid.get_gid())
}
fn get_encrypted_password(&self) -> Option<&str> {
todo!()
}
}
impl Display for Inner {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
write!(
f,
"{}:{}:{}:{}",
self.groupname,
self.password,
self.gid,
self.members
.iter()
.map(|mem| format!("{}", mem))
.collect::<Vec<String>>()
.join(",")
)
}
}
impl NewFromString for Rc<Inner> {
fn new_from_string(line: String, position: u32) -> Result<Self, UserLibError> {
let elements: Vec<String> = line.split(':').map(ToString::to_string).collect();
if elements.len() == 4 {
Ok(Self::new(Inner {
pos: position,
source: line,
groupname: Groupname::try_from(elements.get(0).unwrap().to_string())?,
password: crate::Password::Disabled,
gid: crate::Gid::try_from(elements.get(2).unwrap().to_string())?,
members: parse_members_list(elements.get(3).unwrap()),
}))
} else {
Err(format!(
"Failed to parse: not enough elements ({}): {:?}",
elements.len(),
elements
)
.into())
}
}
}
fn parse_members_list(source: &str) -> Vec<crate::Username> {
let mut res = vec![];
for mem in source.split(',').filter_map(|x| {
if x.is_empty() {
None
} else {
Some(x.to_string())
}
}) {
res.push(crate::Username::try_from(mem).expect("failed to parse username"));
}
res
}
#[test]
fn test_parse_and_back_identity() {
let line = "teste:x:1002:test,teste";
let line2: Group = Group::new_from_string(line.to_owned(), 0).unwrap();
assert_eq!(format!("{}", line2), line);
}
#[test]
fn test_groupname() {
let line = "teste:x:1002:test,teste";
let line2 = Group::new_from_string(line.to_owned(), 0).unwrap();
assert_eq!(line2.get_groupname().unwrap(), "teste");
}
#[test]
fn test_root_group() {
let line = "root:x:0:";
let line2 = Group::new_from_string(line.to_owned(), 0).unwrap();
assert_eq!(line2.get_groupname().unwrap(), "root");
}