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use std::{convert::TryFrom, fmt, num::NonZeroU8};
use ruma_identifiers_validation::mxc_uri::validate;
use crate::ServerName;
#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct MxcUri {
full_uri: Box<str>,
slash_idx: Option<NonZeroU8>,
}
impl MxcUri {
pub fn media_id(&self) -> Option<&str> {
self.parts().map(|(_, s)| s)
}
pub fn server_name(&self) -> Option<&ServerName> {
self.parts().map(|(s, _)| s)
}
pub fn parts(&self) -> Option<(&ServerName, &str)> {
self.slash_idx.map(|idx| {
(
<&ServerName>::try_from(&self.full_uri[6..idx.get() as usize]).unwrap(),
&self.full_uri[idx.get() as usize + 1..],
)
})
}
pub fn is_valid(&self) -> bool {
self.slash_idx.is_some()
}
pub fn as_str(&self) -> &str {
&self.full_uri
}
}
impl fmt::Debug for MxcUri {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str(&self.full_uri)
}
}
impl fmt::Display for MxcUri {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str(&self.full_uri)
}
}
fn from<S>(uri: S) -> MxcUri
where
S: AsRef<str> + Into<Box<str>>,
{
match validate(uri.as_ref()) {
Ok(idx) => MxcUri { full_uri: uri.into(), slash_idx: Some(idx) },
Err(_) => MxcUri { full_uri: uri.into(), slash_idx: None },
}
}
impl From<&str> for MxcUri {
fn from(s: &str) -> Self {
from(s)
}
}
impl From<String> for MxcUri {
fn from(s: String) -> Self {
from(s)
}
}
#[cfg(feature = "serde")]
impl<'de> serde::Deserialize<'de> for MxcUri {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: serde::Deserializer<'de>,
{
String::deserialize(deserializer).map(Into::into)
}
}
#[cfg(feature = "serde")]
impl serde::Serialize for MxcUri {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
serializer.serialize_str(&self.to_string())
}
}
#[cfg(test)]
mod tests {
use std::convert::TryFrom;
use crate::ServerName;
use super::MxcUri;
#[test]
fn parse_mxc_uri() {
let mxc = MxcUri::from("mxc://127.0.0.1/asd32asdfasdsd");
assert!(mxc.is_valid());
assert_eq!(
mxc.parts(),
Some((
<&ServerName>::try_from("127.0.0.1").expect("Failed to create ServerName"),
"asd32asdfasdsd"
))
);
}
#[test]
fn parse_mxc_uri_without_media_id() {
let mxc = MxcUri::from("mxc://127.0.0.1");
assert!(!mxc.is_valid());
assert_eq!(mxc.parts(), None);
}
#[test]
fn parse_mxc_uri_without_protocol() {
assert!(!MxcUri::from("127.0.0.1/asd32asdfasdsd").is_valid());
}
#[cfg(feature = "serde")]
#[test]
fn serialize_mxc_uri() {
assert_eq!(
serde_json::to_string(&MxcUri::from("mxc://server/1234id"))
.expect("Failed to convert MxcUri to JSON."),
r#""mxc://server/1234id""#
);
}
#[cfg(feature = "serde")]
#[test]
fn deserialize_mxc_uri() {
let mxc = serde_json::from_str::<MxcUri>(r#""mxc://server/1234id""#)
.expect("Failed to convert JSON to MxcUri");
assert_eq!(mxc.as_str(), "mxc://server/1234id");
assert!(mxc.is_valid());
assert_eq!(
mxc.parts(),
Some((
<&ServerName>::try_from("server").expect("Failed to create ServerName"),
"1234id"
))
);
}
}