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use {
anyhow::{
Result,
anyhow,
},
std::env::args,
};
struct CrateKaldav {
client: kaldav::Client,
}
impl CrateKaldav {
fn new(url: &str, username: String, password: Option<String>) -> Self {
println!("kaldav");
let mut client = kaldav::Client::new(url);
client.set_auth(Some(kaldav::Authorization { username, password, }));
Self {
client,
}
}
fn show_content(&self) -> Result<()> {
// This function does not do what we want, because Principal::home() does not appear to
// work in our environment.
// Reading https://datatracker.ietf.org/doc/html/rfc4791#section-6.2.1 reveals that the
// CALDAV:calendar-home-set property merely SHOULD, rather than MUST, be implemented.
let principals = self.client.principals()?;
// eprintln!("Principals: {principals:?}");
let mut home = None;
println!("Attempting to find home.");
for p in principals {
home = p.home().ok();
if home.is_some() {
break;
}
}
if home.is_some() {
println!("Found home: {home:?}");
} else {
return Err(anyhow!("No home found in any Principal. :("));
}
// This function is heavily based on:
// https://github.com/sanpii/kaldav/blob/main/examples/list_events.rs
eprintln!("Retrieving list of calendars.");
let calendars = self.client.calendars()?;
for (name, calendar) in calendars {
println!("Calendar '{}'", name);
let objects = calendar.events()?;
if objects.is_empty() {
println!(" no events");
continue;
}
for object in objects {
for event in object.events {
println!(
" {} - {}",
event.dtstart,
event.summary.unwrap_or_default()
);
}
}
}
Ok(())
}
}
fn main() -> Result<()> {
let caldav_url = args().nth(1).expect("Missing caldav url argument.");
let username = args().nth(2).expect("Missing username argument.");
let password = args().nth(3).expect("Missing password argument.");
let kaldav = CrateKaldav::new(&caldav_url, username.clone(), Some(password.clone()));
kaldav.show_content()?;
Ok(())
}
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