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use crate::error::{ParseSearchTargetError, ParseURNError};
use std::{borrow::Cow, fmt};
#[derive(Debug, Eq, PartialEq, Clone)]
pub enum SearchTarget {
All,
RootDevice,
UUID(String),
URN(URN),
}
impl fmt::Display for SearchTarget {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
SearchTarget::All => write!(f, "ssdp:all"),
SearchTarget::RootDevice => write!(f, "upnp:rootdevice"),
SearchTarget::UUID(uuid) => write!(f, "uuid:{}", uuid),
SearchTarget::URN(urn) => write!(f, "{}", urn),
}
}
}
impl std::str::FromStr for SearchTarget {
type Err = ParseSearchTargetError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
Ok(match s {
"ssdp:all" => SearchTarget::All,
"upnp:rootdevice" => SearchTarget::RootDevice,
s if s.starts_with("uuid") => {
SearchTarget::UUID(s.trim_start_matches("uuid:").to_string())
}
s => URN::from_str(s)
.map(SearchTarget::URN)
.map_err(ParseSearchTargetError::URN)?,
})
}
}
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd)]
#[allow(missing_docs)]
pub enum URN {
Device(Cow<'static, str>, Cow<'static, str>, u32),
Service(Cow<'static, str>, Cow<'static, str>, u32),
}
impl fmt::Display for URN {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
URN::Device(domain, typ, version) => {
write!(f, "urn:{}:device:{}:{}", domain, typ, version)
}
URN::Service(domain, typ, version) => {
write!(f, "urn:{}:service:{}:{}", domain, typ, version)
}
}
}
}
impl URN {
pub const fn device(domain: &'static str, typ: &'static str, version: u32) -> Self {
URN::Device(Cow::Borrowed(domain), Cow::Borrowed(typ), version)
}
pub const fn service(domain: &'static str, typ: &'static str, version: u32) -> Self {
URN::Service(Cow::Borrowed(domain), Cow::Borrowed(typ), version)
}
pub fn domain_name(&self) -> &str {
match self {
URN::Device(domain_name, _, _) => domain_name,
URN::Service(domain_name, _, _) => domain_name,
}
}
pub fn typ(&self) -> &str {
match self {
URN::Device(_, typ, _) => typ,
URN::Service(_, typ, _) => typ,
}
}
pub fn version(&self) -> u32 {
match self {
URN::Device(_, _, v) => *v,
URN::Service(_, _, v) => *v,
}
}
}
impl Into<SearchTarget> for URN {
fn into(self) -> SearchTarget {
SearchTarget::URN(self)
}
}
impl std::str::FromStr for URN {
type Err = ParseURNError;
fn from_str(str: &str) -> Result<Self, Self::Err> {
let mut iter = str.split(':');
if iter.next() != Some("urn") {
return Err(ParseURNError);
}
let domain = iter.next().ok_or(ParseURNError)?.to_string().into();
let urn_type = &iter.next().ok_or(ParseURNError)?;
let typ = iter.next().ok_or(ParseURNError)?.to_string().into();
let version = iter
.next()
.ok_or(ParseURNError)?
.parse::<u32>()
.map_err(|_| ParseURNError)?;
if iter.next() != None {
return Err(ParseURNError);
}
if urn_type.eq_ignore_ascii_case("service") {
Ok(URN::Service(domain, typ, version))
} else if urn_type.eq_ignore_ascii_case("device") {
Ok(URN::Device(domain, typ, version))
} else {
Err(ParseURNError)
}
}
}
#[cfg(test)]
mod tests {
use super::{SearchTarget, URN};
#[test]
fn parse_search_target() {
assert_eq!("ssdp:all".parse(), Ok(SearchTarget::All));
assert_eq!("upnp:rootdevice".parse(), Ok(SearchTarget::RootDevice));
assert_eq!(
"uuid:some-uuid".parse(),
Ok(SearchTarget::UUID("some-uuid".to_string()))
);
assert_eq!(
"urn:schemas-upnp-org:device:ZonePlayer:1".parse(),
Ok(SearchTarget::URN(URN::Device(
"schemas-upnp-org".into(),
"ZonePlayer".into(),
1
)))
);
assert_eq!(
"urn:schemas-sonos-com:service:Queue:2".parse(),
Ok(SearchTarget::URN(URN::Service(
"schemas-sonos-com".into(),
"Queue".into(),
2
)))
);
}
}