proxmox-backup/src/config/remotes.rs

103 lines
2.9 KiB
Rust

use failure::*;
use lazy_static::lazy_static;
use std::collections::HashMap;
use serde::{Serialize, Deserialize};
use proxmox::api::{api, schema::*};
use proxmox::tools::{fs::replace_file, fs::CreateOptions};
use crate::api2::types::*;
use crate::section_config::{SectionConfig, SectionConfigData, SectionConfigPlugin};
lazy_static! {
static ref CONFIG: SectionConfig = init();
}
// fixme: define better schemas
pub const REMOTE_HOST_SCHEMA: Schema = StringSchema::new("Host IP address or DNS name.").schema();
pub const REMOTE_USERID_SCHEMA: Schema = StringSchema::new("User ID").schema();
pub const REMOTE_PASSWORD_SCHEMA: Schema = StringSchema::new("Password or auth token.").schema();
#[api(
properties: {
comment: {
optional: true,
schema: SINGLE_LINE_COMMENT_SCHEMA,
},
host: {
schema: REMOTE_HOST_SCHEMA,
},
userid: {
schema: REMOTE_USERID_SCHEMA,
},
password: {
schema: REMOTE_PASSWORD_SCHEMA,
},
}
)]
#[derive(Serialize,Deserialize)]
/// Remote properties.
pub struct Remote {
pub comment: Option<String>,
pub host: String,
pub userid: String,
pub password: String,
}
fn init() -> SectionConfig {
let obj_schema = match Remote::API_SCHEMA {
Schema::Object(ref obj_schema) => obj_schema,
_ => unreachable!(),
};
let plugin = SectionConfigPlugin::new("remote".to_string(), obj_schema);
let mut config = SectionConfig::new(&REMOTE_ID_SCHEMA);
config.register_plugin(plugin);
config
}
const REMOTES_CFG_FILENAME: &str = "/etc/proxmox-backup/remotes.cfg";
pub fn config() -> Result<SectionConfigData, Error> {
let content = match std::fs::read_to_string(REMOTES_CFG_FILENAME) {
Ok(c) => c,
Err(err) => {
if err.kind() == std::io::ErrorKind::NotFound {
String::from("")
} else {
bail!("unable to read '{}' - {}", REMOTES_CFG_FILENAME, err);
}
}
};
CONFIG.parse(REMOTES_CFG_FILENAME, &content)
}
pub fn save_config(config: &SectionConfigData) -> Result<(), Error> {
let raw = CONFIG.write(REMOTES_CFG_FILENAME, &config)?;
let backup_user = crate::backup::backup_user()?;
let mode = nix::sys::stat::Mode::from_bits_truncate(0o0640);
// set the correct owner/group/permissions while saving file
// owner(rw) = root, group(r)= backup
let options = CreateOptions::new()
.perm(mode)
.owner(nix::unistd::ROOT)
.group(backup_user.gid);
replace_file(REMOTES_CFG_FILENAME, raw.as_bytes(), options)?;
Ok(())
}
// shell completion helper
pub fn complete_remote_name(_arg: &str, _param: &HashMap<String, String>) -> Vec<String> {
match config() {
Ok(data) => data.sections.iter().map(|(id, _)| id.to_string()).collect(),
Err(_) => return vec![],
}
}