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use url::Url;
use std::slice;
use libc::{c_char, size_t};
extern crate url;
extern crate libc;
#[no_mangle]
pub unsafe extern "C" fn parse_url(raw_input: *const c_char, raw_input_length: size_t) -> *mut Url {
let input = std::str::from_utf8_unchecked(slice::from_raw_parts(raw_input as *const u8, raw_input_length));
// This code would assume that the URL is parsed successfully:
// let result = Url::parse(input).unwrap();
// Box::into_raw(Box::new(result))
// But we might get an invalid input. So we want to return null in case of
// error. We can do it in such a manner:
match Url::parse(input) {
Ok(result) => Box::into_raw(Box::new(result)),
Err(_) => std::ptr::null_mut(),
}
}
#[no_mangle]
pub unsafe extern "C" fn parse_url_to_href(raw_input: *const c_char, raw_input_length: size_t) -> *const c_char {
let input = std::str::from_utf8_unchecked(slice::from_raw_parts(raw_input as *const u8, raw_input_length));
match Url::parse(input) {
Ok(result) => std::ffi::CString::new(result.as_str()).unwrap().into_raw(),
Err(_) => std::ptr::null_mut(),
}
}
#[no_mangle]
pub unsafe extern "C" fn free_url(raw: *mut Url) {
if raw.is_null() {
return;
}
drop(Box::from_raw(raw))
}
#[no_mangle]
pub unsafe extern fn free_string(ptr: *const c_char) {
// Take the ownership back to rust and drop the owner
let _ = std::ffi::CString::from_raw(ptr as *mut _);
}
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