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use super::{headermap::HeaderMap, method::Method, uri::Uri};
use anyhow::{anyhow, bail};
use std::{fmt::Display, str::FromStr};
#[derive(Debug, Clone)]
pub struct Request {
pub method: Method,
pub uri: Uri,
pub headers: HeaderMap,
pub body: String,
}
impl Display for Request {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let Self {
headers,
method,
uri,
..
} = self;
write!(f, "{method} {uri} SIP/2.0\r\n")?;
write!(f, "{headers}\r\n")?;
Ok(())
}
}
impl FromStr for Request {
type Err = anyhow::Error;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let mut lines = s.lines();
let statusline = lines.next().ok_or(anyhow!("status line missing"))?;
let (method, rest) = statusline
.split_once(" ")
.ok_or(anyhow!("status line malformed"))?;
let (uri, sipver) = rest
.split_once(" ")
.ok_or(anyhow!("status line malformed"))?;
let Some(ver) = sipver.strip_prefix("SIP/") else {
bail!("sip version malformed");
};
if ver != "2.0" {
bail!("sip version {ver:?} is not supported");
}
let uri = Uri::from_str(uri)?;
let headers = HeaderMap::parse(&mut lines)?;
let method = Method::from_str(method)?;
Ok(Self {
body: String::new(),
headers,
method,
uri,
})
}
}
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