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931025c16e
Clippy now checks to see if unsafe code is wrapped in unsafe blocks. We have this lint disabled for `script` and `script_bindings` because of a lot of legacy code that doesn't do this. The lint is useful though as it makes it more obvious what code is unsafe. This is an incremental step toward being able to turn this lint on for `script`. This has the benefit of silencing warnings that show up in some IDEs that use rust-analyzer. Testing: This should not change behavior at all and is thus covered by existing tests. Signed-off-by: Martin Robinson <mrobinson@igalia.com>
49 lines
1.8 KiB
Rust
49 lines
1.8 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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//! Utilities for the implementation of JSAPI proxy handlers.
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#![deny(missing_docs)]
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use js::jsapi::{GetObjectRealmOrNull, GetRealmPrincipals, HandleObject as RawHandleObject};
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use js::rust::get_context_realm;
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use script_bindings::principals::ServoJSPrincipalsRef;
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pub(crate) use script_bindings::proxyhandler::*;
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use crate::script_runtime::JSContext as SafeJSContext;
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/// <https://html.spec.whatwg.org/multipage/#isplatformobjectsameorigin-(-o-)>
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pub(crate) unsafe fn is_platform_object_same_origin(
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cx: SafeJSContext,
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obj: RawHandleObject,
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) -> bool {
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let subject_realm = unsafe { get_context_realm(*cx) };
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let obj_realm = unsafe { GetObjectRealmOrNull(*obj) };
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assert!(!obj_realm.is_null());
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let subject_principals =
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unsafe { ServoJSPrincipalsRef::from_raw_unchecked(GetRealmPrincipals(subject_realm)) };
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let obj_principals =
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unsafe { ServoJSPrincipalsRef::from_raw_unchecked(GetRealmPrincipals(obj_realm)) };
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let subject_origin = subject_principals.origin();
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let obj_origin = obj_principals.origin();
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let result = subject_origin.same_origin_domain(&obj_origin);
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log::trace!(
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"object {:p} (realm = {:p}, principalls = {:p}, origin = {:?}) is {} \
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with reference to the current Realm (realm = {:p}, principals = {:p}, \
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origin = {:?})",
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obj.get(),
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obj_realm,
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obj_principals.as_raw(),
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obj_origin.immutable(),
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["NOT same domain-origin", "same domain-origin"][result as usize],
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subject_realm,
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subject_principals.as_raw(),
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subject_origin.immutable()
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);
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result
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}
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