use std::marker::PhantomData;
use std::mem::ManuallyDrop;
use std::ops::Deref;
use std::ptr::NonNull;
use js::glue::{
CreateRustJSPrincipals, DestroyRustJSPrincipals, GetRustJSPrincipalsPrivate,
JSPrincipalsCallbacks,
};
use js::jsapi::{JSPrincipals, JS_DropPrincipals, JS_HoldPrincipals};
use js::rust::Runtime;
use servo_url::MutableOrigin;
#[repr(transparent)]
pub struct ServoJSPrincipals(NonNull<JSPrincipals>);
impl ServoJSPrincipals {
pub fn new(origin: &MutableOrigin) -> Self {
unsafe {
let private: Box<MutableOrigin> = Box::new(origin.clone());
let raw = CreateRustJSPrincipals(&PRINCIPALS_CALLBACKS, Box::into_raw(private) as _);
Self::from_raw_nonnull(NonNull::new_unchecked(raw))
}
}
#[inline]
pub unsafe fn from_raw_nonnull(raw: NonNull<JSPrincipals>) -> Self {
JS_HoldPrincipals(raw.as_ptr());
Self(raw)
}
#[inline]
pub unsafe fn origin(&self) -> MutableOrigin {
let origin = GetRustJSPrincipalsPrivate(self.0.as_ptr()) as *mut MutableOrigin;
(*origin).clone()
}
#[inline]
pub fn as_raw_nonnull(&self) -> NonNull<JSPrincipals> {
self.0
}
#[inline]
pub fn as_raw(&self) -> *mut JSPrincipals {
self.0.as_ptr()
}
}
impl Clone for ServoJSPrincipals {
#[inline]
fn clone(&self) -> Self {
unsafe { Self::from_raw_nonnull(self.as_raw_nonnull()) }
}
}
impl Drop for ServoJSPrincipals {
#[inline]
fn drop(&mut self) {
unsafe { JS_DropPrincipals(Runtime::get(), self.as_raw()) };
}
}
pub struct ServoJSPrincipalsRef<'a>(ManuallyDrop<ServoJSPrincipals>, PhantomData<&'a ()>);
impl ServoJSPrincipalsRef<'_> {
#[inline]
pub unsafe fn from_raw_nonnull(raw: NonNull<JSPrincipals>) -> Self {
Self(ManuallyDrop::new(ServoJSPrincipals(raw)), PhantomData)
}
#[inline]
pub unsafe fn from_raw_unchecked(raw: *mut JSPrincipals) -> Self {
Self::from_raw_nonnull(NonNull::new_unchecked(raw))
}
}
impl Clone for ServoJSPrincipalsRef<'_> {
#[inline]
fn clone(&self) -> Self {
Self(ManuallyDrop::new(ServoJSPrincipals(self.0 .0)), PhantomData)
}
}
impl Deref for ServoJSPrincipalsRef<'_> {
type Target = ServoJSPrincipals;
#[inline]
fn deref(&self) -> &Self::Target {
&self.0
}
}
#[allow(unused)]
pub unsafe extern "C" fn destroy_servo_jsprincipal(principals: *mut JSPrincipals) {
Box::from_raw(GetRustJSPrincipalsPrivate(principals) as *mut MutableOrigin);
DestroyRustJSPrincipals(principals);
}
const PRINCIPALS_CALLBACKS: JSPrincipalsCallbacks = JSPrincipalsCallbacks {
write: None,
isSystemOrAddonPrincipal: Some(principals_is_system_or_addon_principal),
};
unsafe extern "C" fn principals_is_system_or_addon_principal(_: *mut JSPrincipals) -> bool {
false
}
pub unsafe extern "C" fn subsumes(obj: *mut JSPrincipals, other: *mut JSPrincipals) -> bool {
if let (Some(obj), Some(other)) = (NonNull::new(obj), NonNull::new(other)) {
let obj = ServoJSPrincipalsRef::from_raw_nonnull(obj);
let other = ServoJSPrincipalsRef::from_raw_nonnull(other);
let obj_origin = obj.origin();
let other_origin = other.origin();
obj_origin.same_origin_domain(&other_origin)
} else {
warn!("Received null JSPrincipals asrgument.");
false
}
}