forked from mirrors/gecko-dev
149508793b
<!-- Please describe your changes on the following line: --> Replace uses of spidermonkey-specific JS_GetArrayBufferViewType with ArrayBufferView impl's method get_array_type(). Tests pass: ./mach test-wpt tests/wpt/web-platform-tests/WebCrypto ./mach test-wpt tests/wpt/web-platform-tests/webgl --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [x] These changes fix #15605 (github issue number if applicable). - [x] There are tests for these changes <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> Source-Repo: https://github.com/servo/servo Source-Revision: 907c1ef3d280269b5fe87a67759411ab2f938a72 --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : 186ac6f4f13d2dacd6825a11318af70ea59dad98
82 lines
2.5 KiB
Rust
82 lines
2.5 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 http://mozilla.org/MPL/2.0/. */
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use core::nonzero::NonZero;
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use dom::bindings::cell::DOMRefCell;
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use dom::bindings::codegen::Bindings::CryptoBinding;
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use dom::bindings::codegen::Bindings::CryptoBinding::CryptoMethods;
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use dom::bindings::error::{Error, Fallible};
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use dom::bindings::js::Root;
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use dom::bindings::reflector::{Reflector, reflect_dom_object};
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use dom::globalscope::GlobalScope;
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use js::jsapi::{JSContext, JSObject};
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use js::jsapi::Type;
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use servo_rand::{ServoRng, Rng};
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unsafe_no_jsmanaged_fields!(ServoRng);
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// https://developer.mozilla.org/en-US/docs/Web/API/Crypto
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#[dom_struct]
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pub struct Crypto {
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reflector_: Reflector,
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#[ignore_heap_size_of = "Defined in rand"]
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rng: DOMRefCell<ServoRng>,
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}
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impl Crypto {
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fn new_inherited() -> Crypto {
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Crypto {
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reflector_: Reflector::new(),
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rng: DOMRefCell::new(ServoRng::new()),
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}
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}
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pub fn new(global: &GlobalScope) -> Root<Crypto> {
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reflect_dom_object(box Crypto::new_inherited(), global, CryptoBinding::Wrap)
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}
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}
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impl CryptoMethods for Crypto {
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#[allow(unsafe_code)]
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// https://dvcs.w3.org/hg/webcrypto-api/raw-file/tip/spec/Overview.html#Crypto-method-getRandomValues
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unsafe fn GetRandomValues(&self,
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_cx: *mut JSContext,
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input: *mut JSObject)
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-> Fallible<NonZero<*mut JSObject>> {
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assert!(!input.is_null());
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typedarray!(in(_cx) let mut array_buffer_view: ArrayBufferView = input);
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let (array_type, mut data) = match array_buffer_view.as_mut() {
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Ok(x) => (x.get_array_type(), x.as_mut_slice()),
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Err(_) => {
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return Err(Error::Type("Argument to Crypto.getRandomValues is not an ArrayBufferView"
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.to_owned()));
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}
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};
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if !is_integer_buffer(array_type) {
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return Err(Error::TypeMismatch);
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}
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if data.len() > 65536 {
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return Err(Error::QuotaExceeded);
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}
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self.rng.borrow_mut().fill_bytes(&mut data);
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Ok(NonZero::new(input))
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}
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}
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fn is_integer_buffer(array_type: Type) -> bool {
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match array_type {
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Type::Uint8 |
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Type::Uint8Clamped |
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Type::Int8 |
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Type::Uint16 |
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Type::Int16 |
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Type::Uint32 |
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Type::Int32 => true,
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_ => false,
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}
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}
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