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use crate::error::{Error, ErrorKind};
#[cfg(feature = "serde")]
use serde::{de, ser, Deserialize, Serialize};
use std::{fmt, str::FromStr};
#[derive(Copy, Clone, Debug, Eq, PartialEq, PartialOrd, Ord)]
pub enum Severity {
None,
Low,
Medium,
High,
Critical,
}
impl Severity {
pub fn as_str(self) -> &'static str {
match self {
Severity::None => "none",
Severity::Low => "low",
Severity::Medium => "medium",
Severity::High => "high",
Severity::Critical => "critical",
}
}
}
impl FromStr for Severity {
type Err = Error;
fn from_str(s: &str) -> Result<Self, Error> {
Ok(match s.to_ascii_lowercase().as_str() {
"none" => Severity::None,
"low" => Severity::Low,
"medium" => Severity::Medium,
"high" => Severity::High,
"critical" => Severity::Critical,
_ => fail!(
ErrorKind::Parse,
"invalid CVSS Qualitative Severity Rating Scale value: {}",
s
),
})
}
}
impl fmt::Display for Severity {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}", self.as_str())
}
}
#[cfg(feature = "serde")]
impl<'de> Deserialize<'de> for Severity {
fn deserialize<D: de::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
use de::Error;
let string = String::deserialize(deserializer)?;
string.parse().map_err(D::Error::custom)
}
}
#[cfg(feature = "serde")]
impl Serialize for Severity {
fn serialize<S: ser::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
self.to_string().serialize(serializer)
}
}