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use crate::*;
use std::sync::Arc;
use ::url::Url;
/// Tx5 url.
#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct Tx5Url(Arc<Url>);
impl std::fmt::Debug for Tx5Url {
#[inline]
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
self.0.fmt(f)
}
}
impl std::fmt::Display for Tx5Url {
#[inline]
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
self.0.fmt(f)
}
}
impl AsRef<str> for Tx5Url {
fn as_ref(&self) -> &str {
self.0.as_str()
}
}
impl AsRef<Arc<Url>> for Tx5Url {
fn as_ref(&self) -> &Arc<Url> {
&self.0
}
}
impl AsRef<Url> for Tx5Url {
fn as_ref(&self) -> &Url {
&self.0
}
}
impl Tx5Url {
/// Parse a url from a str.
pub fn new<R: AsRef<str>>(r: R) -> Result<Self> {
let url = Url::parse(r.as_ref()).map_err(Error::err)?;
match url.scheme() {
"ws" | "wss" => (),
scheme => {
return Err(Error::err(format!(
"invalid scheme, expected \"ws\" or \"wss\", got: {scheme:?}",
)));
}
}
if url.host_str().is_none() {
return Err(Error::id("InvalidHost"));
}
match url.path_segments() {
// None is okay, it's a signal url
None => (),
Some(mut seg) => {
// None on the first next is still okay
if let Some(first) = seg.next() {
if !first.is_empty() {
if first != "tx5-ws" {
return Err(Error::err(format!(
"invalid first path segment, expected \"tx5-ws\", got: {first:?}",
)));
}
match seg.next() {
None => return Err(Error::id("InvalidPubKey")),
Some(pk) => {
let _id = Id::from_b64(pk)?;
}
}
}
}
}
}
Ok(Self(Arc::new(url)))
}
/// If this url does not contain the `/tx5-ws/[pubkey]` path,
/// then it references a signal server directly, and this function
/// will return `true`. Otherwise, it is a client url.
#[inline]
pub fn is_server(&self) -> bool {
!self.is_client()
}
/// If this url contains the `/tx5-ws/[pubkey]` path,
/// then it is a client url, otherwise, it is a signal
/// server url.
pub fn is_client(&self) -> bool {
match self.0.path_segments() {
None => false,
Some(mut seg) => match seg.next() {
None => false,
Some(first) => !first.is_empty(),
},
}
}
/// If this is a client url, convert it into a server (signal) url,
/// by dropping the path components.
pub fn to_server(&self) -> Self {
Self::new(format!("{}://{}", self.0.scheme(), self.endpoint())).unwrap()
}
/// If this is a server url, convert it to a client (peer) url,
/// by providing the client id/pubkey.
pub fn to_client(&self, id: Id) -> Self {
Self::new(format!(
"{}://{}/tx5-ws/{}",
self.0.scheme(),
self.endpoint(),
id,
))
.unwrap()
}
/// Parse the "id" path segment of this url, if it is a client url.
pub fn id(&self) -> Option<Id> {
match self.0.path_segments() {
None => None,
Some(mut seg) => match seg.next() {
None => None,
Some(_) => match seg.next() {
None => None,
Some(id) => match Id::from_b64(id) {
Err(_) => None,
Ok(id) => Some(id),
},
},
},
}
}
/// Parse the "host:port" portion of this url.
pub fn endpoint(&self) -> String {
let host = self.0.host_str().unwrap();
let port = self.0.port().unwrap_or(443);
format!("{host}:{port}")
}
}