proxmox-backup/src/client/backup_repo.rs

83 lines
2.1 KiB
Rust

use std::fmt;
use failure::*;
use proxmox::api::const_regex;
use proxmox::api::schema::*;
const_regex! {
/// Regular expression to parse repository URLs
pub BACKUP_REPO_URL_REGEX = r"^(?:(?:([\w@]+)@)?([\w\-_.]+):)?(\w+)$";
}
/// API schema format definition for repository URLs
pub const BACKUP_REPO_URL: ApiStringFormat = ApiStringFormat::Pattern(&BACKUP_REPO_URL_REGEX);
/// Reference remote backup locations
///
#[derive(Debug)]
pub struct BackupRepository {
/// The user name used for Authentication
user: Option<String>,
/// The host name or IP address
host: Option<String>,
/// The name of the datastore
store: String,
}
impl BackupRepository {
pub fn user(&self) -> &str {
if let Some(ref user) = self.user {
return user;
}
"root@pam"
}
pub fn host(&self) -> &str {
if let Some(ref host) = self.host {
return host;
}
"localhost"
}
pub fn store(&self) -> &str {
&self.store
}
}
impl fmt::Display for BackupRepository {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
if let Some(ref user) = self.user {
write!(f, "{}@{}:{}", user, self.host(), self.store)
} else if let Some(ref host) = self.host {
write!(f, "{}:{}", host, self.store)
} else {
write!(f, "{}", self.store)
}
}
}
impl std::str::FromStr for BackupRepository {
type Err = Error;
/// Parse a repository URL.
///
/// This parses strings like `user@host:datastore`. The `user` and
/// `host` parts are optional, where `host` defaults to the local
/// host, and `user` defaults to `root@pam`.
fn from_str(url: &str) -> Result<Self, Self::Err> {
let cap = (BACKUP_REPO_URL_REGEX.regex_obj)().captures(url)
.ok_or_else(|| format_err!("unable to parse repository url '{}'", url))?;
Ok(Self {
user: cap.get(1).map(|m| m.as_str().to_owned()),
host: cap.get(2).map(|m| m.as_str().to_owned()),
store: cap[3].to_owned(),
})
}
}