forked from mirrors/gecko-dev
75a6c2071a
This is more future-proof. Source-Repo: https://github.com/servo/servo Source-Revision: 2fb5eb8747fb4189ca577cc93b056f1290876980
1032 lines
42 KiB
Rust
1032 lines
42 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 dom::bindings::cell::DOMRefCell;
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use dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
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use dom::bindings::codegen::Bindings::XMLHttpRequestBinding;
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use dom::bindings::codegen::Bindings::XMLHttpRequestBinding::XMLHttpRequestMethods;
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use dom::bindings::codegen::Bindings::XMLHttpRequestBinding::XMLHttpRequestResponseType;
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use dom::bindings::codegen::Bindings::XMLHttpRequestBinding::XMLHttpRequestResponseType::{_empty, Json, Text};
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use dom::bindings::codegen::InheritTypes::{EventCast, EventTargetCast, XMLHttpRequestDerived};
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use dom::bindings::conversions::ToJSValConvertible;
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use dom::bindings::error::{Error, ErrorResult, Fallible};
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use dom::bindings::error::Error::{InvalidState, InvalidAccess};
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use dom::bindings::error::Error::{Network, Syntax, Security, Abort, Timeout};
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use dom::bindings::global::{GlobalField, GlobalRef, GlobalRoot};
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use dom::bindings::js::{MutNullableJS, JS, JSRef, Temporary, OptionalRootedRootable};
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use dom::bindings::refcounted::Trusted;
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use dom::bindings::str::ByteString;
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use dom::bindings::utils::{Reflectable, reflect_dom_object};
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use dom::document::Document;
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use dom::event::{Event, EventBubbles, EventCancelable, EventHelpers};
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use dom::eventtarget::{EventTarget, EventTargetHelpers, EventTargetTypeId};
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use dom::progressevent::ProgressEvent;
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use dom::urlsearchparams::URLSearchParamsHelpers;
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use dom::xmlhttprequesteventtarget::XMLHttpRequestEventTarget;
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use dom::xmlhttprequesteventtarget::XMLHttpRequestEventTargetTypeId;
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use dom::xmlhttprequestupload::XMLHttpRequestUpload;
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use script_task::{ScriptChan, ScriptMsg, Runnable};
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use encoding::all::UTF_8;
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use encoding::label::encoding_from_whatwg_label;
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use encoding::types::{DecoderTrap, Encoding, EncodingRef, EncoderTrap};
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use hyper::header::Headers;
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use hyper::header::{Accept, ContentLength, ContentType, qitem};
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use hyper::http::RawStatus;
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use hyper::mime::{self, Mime};
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use hyper::method::Method;
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use js::jsapi::{JS_ParseJSON, JSContext};
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use js::jsapi::JS_ClearPendingException;
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use js::jsval::{JSVal, NullValue, UndefinedValue};
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use net::resource_task::{ResourceTask, ResourceCORSData, LoadData, LoadResponse};
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use net::resource_task::ControlMsg::Load;
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use net::resource_task::ProgressMsg::{Payload, Done};
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use cors::{allow_cross_origin_request, CORSRequest, RequestMode};
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use util::str::DOMString;
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use util::task::spawn_named;
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use std::ascii::AsciiExt;
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use std::borrow::ToOwned;
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use std::cell::Cell;
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use std::sync::mpsc::{Sender, Receiver, channel};
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use std::default::Default;
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use std::old_io::Timer;
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use std::str::FromStr;
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use std::time::duration::Duration;
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use time;
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use url::{Url, UrlParser};
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use dom::bindings::codegen::UnionTypes::StringOrURLSearchParams;
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use dom::bindings::codegen::UnionTypes::StringOrURLSearchParams::{eString, eURLSearchParams};
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pub type SendParam = StringOrURLSearchParams;
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#[derive(PartialEq, Copy)]
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#[jstraceable]
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enum XMLHttpRequestState {
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Unsent = 0,
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Opened = 1,
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HeadersReceived = 2,
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Loading = 3,
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XHRDone = 4, // So as not to conflict with the ProgressMsg `Done`
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}
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struct XHRProgressHandler {
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addr: TrustedXHRAddress,
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progress: XHRProgress,
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}
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impl XHRProgressHandler {
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fn new(addr: TrustedXHRAddress, progress: XHRProgress) -> XHRProgressHandler {
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XHRProgressHandler { addr: addr, progress: progress }
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}
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}
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impl Runnable for XHRProgressHandler {
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fn handler(self: Box<XHRProgressHandler>) {
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let this = *self;
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XMLHttpRequest::handle_progress(this.addr, this.progress);
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}
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}
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#[derive(PartialEq, Clone, Copy)]
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#[jstraceable]
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pub struct GenerationId(uint);
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#[derive(Clone)]
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pub enum XHRProgress {
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/// Notify that headers have been received
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HeadersReceived(GenerationId, Option<Headers>, Option<RawStatus>),
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/// Partial progress (after receiving headers), containing portion of the response
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Loading(GenerationId, ByteString),
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/// Loading is done
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Done(GenerationId),
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/// There was an error (only Abort, Timeout or Network is used)
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Errored(GenerationId, Error),
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}
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impl XHRProgress {
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fn generation_id(&self) -> GenerationId {
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match *self {
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XHRProgress::HeadersReceived(id, _, _) |
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XHRProgress::Loading(id, _) |
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XHRProgress::Done(id) |
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XHRProgress::Errored(id, _) => id
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}
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}
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}
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enum SyncOrAsync<'a> {
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Sync(JSRef<'a, XMLHttpRequest>),
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Async(TrustedXHRAddress, Box<ScriptChan+Send>)
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}
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enum TerminateReason {
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AbortedOrReopened,
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TimedOut,
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}
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#[dom_struct]
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pub struct XMLHttpRequest {
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eventtarget: XMLHttpRequestEventTarget,
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ready_state: Cell<XMLHttpRequestState>,
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timeout: Cell<u32>,
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with_credentials: Cell<bool>,
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upload: JS<XMLHttpRequestUpload>,
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response_url: DOMString,
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status: Cell<u16>,
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status_text: DOMRefCell<ByteString>,
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response: DOMRefCell<ByteString>,
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response_type: Cell<XMLHttpRequestResponseType>,
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response_xml: MutNullableJS<Document>,
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response_headers: DOMRefCell<Headers>,
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// Associated concepts
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request_method: DOMRefCell<Method>,
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request_url: DOMRefCell<Option<Url>>,
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request_headers: DOMRefCell<Headers>,
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request_body_len: Cell<uint>,
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sync: Cell<bool>,
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upload_complete: Cell<bool>,
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upload_events: Cell<bool>,
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send_flag: Cell<bool>,
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global: GlobalField,
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timer: DOMRefCell<Timer>,
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fetch_time: Cell<i64>,
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terminate_sender: DOMRefCell<Option<Sender<TerminateReason>>>,
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generation_id: Cell<GenerationId>,
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}
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impl XMLHttpRequest {
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fn new_inherited(global: GlobalRef) -> XMLHttpRequest {
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XMLHttpRequest {
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eventtarget: XMLHttpRequestEventTarget::new_inherited(XMLHttpRequestEventTargetTypeId::XMLHttpRequest),
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ready_state: Cell::new(XMLHttpRequestState::Unsent),
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timeout: Cell::new(0u32),
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with_credentials: Cell::new(false),
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upload: JS::from_rooted(XMLHttpRequestUpload::new(global)),
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response_url: "".to_owned(),
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status: Cell::new(0),
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status_text: DOMRefCell::new(ByteString::new(vec!())),
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response: DOMRefCell::new(ByteString::new(vec!())),
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response_type: Cell::new(_empty),
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response_xml: Default::default(),
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response_headers: DOMRefCell::new(Headers::new()),
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request_method: DOMRefCell::new(Method::Get),
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request_url: DOMRefCell::new(None),
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request_headers: DOMRefCell::new(Headers::new()),
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request_body_len: Cell::new(0),
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sync: Cell::new(false),
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send_flag: Cell::new(false),
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upload_complete: Cell::new(false),
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upload_events: Cell::new(false),
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global: GlobalField::from_rooted(&global),
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timer: DOMRefCell::new(Timer::new().unwrap()),
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fetch_time: Cell::new(0),
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terminate_sender: DOMRefCell::new(None),
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generation_id: Cell::new(GenerationId(0))
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}
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}
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pub fn new(global: GlobalRef) -> Temporary<XMLHttpRequest> {
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reflect_dom_object(box XMLHttpRequest::new_inherited(global),
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global,
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XMLHttpRequestBinding::Wrap)
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}
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pub fn Constructor(global: GlobalRef) -> Fallible<Temporary<XMLHttpRequest>> {
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Ok(XMLHttpRequest::new(global))
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}
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pub fn handle_progress(addr: TrustedXHRAddress, progress: XHRProgress) {
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let xhr = addr.to_temporary().root();
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xhr.r().process_partial_response(progress);
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}
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#[allow(unsafe_blocks)]
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fn fetch(fetch_type: &SyncOrAsync, resource_task: ResourceTask,
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mut load_data: LoadData, terminate_receiver: Receiver<TerminateReason>,
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cors_request: Result<Option<CORSRequest>,()>, gen_id: GenerationId,
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start_port: Receiver<LoadResponse>) -> ErrorResult {
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fn notify_partial_progress(fetch_type: &SyncOrAsync, msg: XHRProgress) {
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match *fetch_type {
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SyncOrAsync::Sync(xhr) => {
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xhr.process_partial_response(msg);
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},
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SyncOrAsync::Async(ref addr, ref script_chan) => {
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script_chan.send(ScriptMsg::RunnableMsg(box XHRProgressHandler::new(addr.clone(), msg))).unwrap();
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}
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}
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}
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macro_rules! notify_error_and_return(
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($err:expr) => ({
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notify_partial_progress(fetch_type, XHRProgress::Errored(gen_id, $err));
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return Err($err)
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});
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);
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macro_rules! terminate(
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($reason:expr) => (
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match $reason {
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TerminateReason::AbortedOrReopened => {
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return Err(Abort)
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}
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TerminateReason::TimedOut => {
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notify_error_and_return!(Timeout);
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}
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}
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);
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);
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match cors_request {
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Err(_) => {
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// Happens in case of cross-origin non-http URIs
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notify_error_and_return!(Network);
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}
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Ok(Some(ref req)) => {
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let (chan, cors_port) = channel();
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let req2 = req.clone();
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// TODO: this exists only to make preflight check non-blocking
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// perhaps should be handled by the resource_loader?
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spawn_named("XHR:Cors".to_owned(), move || {
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let response = req2.http_fetch();
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chan.send(response).unwrap();
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});
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select! (
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response = cors_port.recv() => {
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let response = response.unwrap();
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if response.network_error {
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notify_error_and_return!(Network);
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} else {
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load_data.cors = Some(ResourceCORSData {
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preflight: req.preflight_flag,
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origin: req.origin.clone()
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});
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}
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},
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reason = terminate_receiver.recv() => terminate!(reason.unwrap())
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);
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}
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_ => {}
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}
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// Step 10, 13
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resource_task.send(Load(load_data)).unwrap();
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let progress_port;
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select! (
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response = start_port.recv() => {
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let response = response.unwrap();
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match cors_request {
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Ok(Some(ref req)) => {
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match response.metadata.headers {
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Some(ref h) if allow_cross_origin_request(req, h) => {},
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_ => notify_error_and_return!(Network)
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}
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},
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_ => {}
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};
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// XXXManishearth Clear cache entries in case of a network error
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notify_partial_progress(fetch_type, XHRProgress::HeadersReceived(gen_id,
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response.metadata.headers.clone(), response.metadata.status.clone()));
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progress_port = response.progress_port;
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},
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reason = terminate_receiver.recv() => terminate!(reason.unwrap())
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);
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let mut buf = vec!();
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loop {
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// Under most circumstances, progress_port will contain lots of Payload
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// events. Since select! does not have any fairness or priority, it
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// might always remove the progress_port event, even when there is
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// a terminate event waiting in the terminate_receiver. If this happens,
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// a timeout or abort will take too long to be processed. To avoid this,
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// in each iteration, we check for a terminate event before we block.
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match terminate_receiver.try_recv() {
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Ok(reason) => terminate!(reason),
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Err(_) => ()
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};
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select! (
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progress = progress_port.recv() => match progress.unwrap() {
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Payload(data) => {
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buf.push_all(data.as_slice());
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notify_partial_progress(fetch_type,
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XHRProgress::Loading(gen_id, ByteString::new(buf.clone())));
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},
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Done(Ok(())) => {
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notify_partial_progress(fetch_type, XHRProgress::Done(gen_id));
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return Ok(());
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},
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Done(Err(_)) => {
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notify_error_and_return!(Network);
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}
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},
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reason = terminate_receiver.recv() => terminate!(reason.unwrap())
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);
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}
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}
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}
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impl<'a> XMLHttpRequestMethods for JSRef<'a, XMLHttpRequest> {
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event_handler!(readystatechange, GetOnreadystatechange, SetOnreadystatechange);
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fn ReadyState(self) -> u16 {
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self.ready_state.get() as u16
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}
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fn Open(self, method: ByteString, url: DOMString) -> ErrorResult {
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//FIXME(seanmonstar): use a Trie instead?
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let maybe_method = method.as_str().and_then(|s| {
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// Note: hyper tests against the uppercase versions
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// Since we want to pass methods not belonging to the short list above
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// without changing capitalization, this will actually sidestep rust-http's type system
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// since methods like "patch" or "PaTcH" will be considered extension methods
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// despite the there being a rust-http method variant for them
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let upper = s.to_ascii_uppercase();
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match upper.as_slice() {
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"DELETE" | "GET" | "HEAD" | "OPTIONS" |
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"POST" | "PUT" | "CONNECT" | "TRACE" |
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"TRACK" => upper.parse().ok(),
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_ => s.parse().ok()
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}
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});
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// Step 2
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match maybe_method {
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// Step 4
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Some(Method::Connect) | Some(Method::Trace) => Err(Security),
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Some(Method::Extension(ref t)) if t.as_slice() == "TRACK" => Err(Security),
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Some(_) if method.is_token() => {
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*self.request_method.borrow_mut() = maybe_method.unwrap();
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// Step 6
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let base = self.global.root().r().get_url();
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let parsed_url = match UrlParser::new().base_url(&base).parse(url.as_slice()) {
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Ok(parsed) => parsed,
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Err(_) => return Err(Syntax) // Step 7
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};
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// XXXManishearth Do some handling of username/passwords
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if self.sync.get() {
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// FIXME: This should only happen if the global environment is a document environment
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if self.timeout.get() != 0 || self.with_credentials.get() || self.response_type.get() != _empty {
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return Err(InvalidAccess)
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}
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}
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// abort existing requests
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self.terminate_ongoing_fetch();
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// Step 12
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*self.request_url.borrow_mut() = Some(parsed_url);
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*self.request_headers.borrow_mut() = Headers::new();
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self.send_flag.set(false);
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*self.status_text.borrow_mut() = ByteString::new(vec!());
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self.status.set(0);
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// Step 13
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if self.ready_state.get() != XMLHttpRequestState::Opened {
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self.change_ready_state(XMLHttpRequestState::Opened);
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}
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Ok(())
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},
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// This includes cases where as_str() returns None, and when is_token() returns false,
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// both of which indicate invalid extension method names
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_ => Err(Syntax), // Step 3
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}
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}
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fn Open_(self, method: ByteString, url: DOMString, async: bool,
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_username: Option<DOMString>, _password: Option<DOMString>) -> ErrorResult {
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self.sync.set(!async);
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self.Open(method, url)
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}
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fn SetRequestHeader(self, name: ByteString, mut value: ByteString) -> ErrorResult {
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if self.ready_state.get() != XMLHttpRequestState::Opened || self.send_flag.get() {
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return Err(InvalidState); // Step 1, 2
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}
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if !name.is_token() || !value.is_field_value() {
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return Err(Syntax); // Step 3, 4
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}
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let name_lower = name.to_lower();
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let name_str = match name_lower.as_str() {
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Some(s) => {
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match s {
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// Disallowed headers
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"accept-charset" | "accept-encoding" |
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"access-control-request-headers" |
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"access-control-request-method" |
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"connection" | "content-length" |
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"cookie" | "cookie2" | "date" |"dnt" |
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"expect" | "host" | "keep-alive" | "origin" |
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"referer" | "te" | "trailer" | "transfer-encoding" |
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"upgrade" | "user-agent" | "via" => {
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return Ok(()); // Step 5
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},
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_ => s
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}
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},
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None => return Err(Syntax)
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};
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debug!("SetRequestHeader: name={:?}, value={:?}", name.as_str(), value.as_str());
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let mut headers = self.request_headers.borrow_mut();
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// Steps 6,7
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match headers.get_raw(name_str) {
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Some(raw) => {
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debug!("SetRequestHeader: old value = {:?}", raw[0]);
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let mut buf = raw[0].clone();
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buf.push_all(b", ");
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buf.push_all(value.as_slice());
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debug!("SetRequestHeader: new value = {:?}", buf);
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value = ByteString::new(buf);
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},
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None => {}
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}
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headers.set_raw(name_str.to_owned(), vec![value.as_slice().to_vec()]);
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Ok(())
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}
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fn Timeout(self) -> u32 {
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self.timeout.get()
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}
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fn SetTimeout(self, timeout: u32) -> ErrorResult {
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if self.sync.get() {
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// FIXME: Not valid for a worker environment
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Err(InvalidAccess)
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} else {
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self.timeout.set(timeout);
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if self.send_flag.get() {
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if timeout == 0 {
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self.cancel_timeout();
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return Ok(());
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}
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let progress = time::now().to_timespec().sec - self.fetch_time.get();
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if timeout > (progress * 1000) as u32 {
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self.set_timeout(timeout - (progress * 1000) as u32);
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} else {
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// Immediately execute the timeout steps
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self.set_timeout(0);
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}
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|
}
|
|
Ok(())
|
|
}
|
|
}
|
|
fn WithCredentials(self) -> bool {
|
|
self.with_credentials.get()
|
|
}
|
|
// Spec for SetWithCredentials: https://xhr.spec.whatwg.org/#dom-xmlhttprequest-withcredentials
|
|
fn SetWithCredentials(self, with_credentials: bool) -> ErrorResult {
|
|
match self.ready_state.get() {
|
|
XMLHttpRequestState::HeadersReceived |
|
|
XMLHttpRequestState::Loading |
|
|
XMLHttpRequestState::XHRDone => Err(InvalidState),
|
|
_ if self.send_flag.get() => Err(InvalidState),
|
|
_ => match self.global.root() {
|
|
GlobalRoot::Window(_) if self.sync.get() => Err(InvalidAccess),
|
|
_ => {
|
|
self.with_credentials.set(with_credentials);
|
|
Ok(())
|
|
},
|
|
},
|
|
}
|
|
}
|
|
fn Upload(self) -> Temporary<XMLHttpRequestUpload> {
|
|
Temporary::new(self.upload)
|
|
}
|
|
fn Send(self, data: Option<SendParam>) -> ErrorResult {
|
|
if self.ready_state.get() != XMLHttpRequestState::Opened || self.send_flag.get() {
|
|
return Err(InvalidState); // Step 1, 2
|
|
}
|
|
|
|
let data = match *self.request_method.borrow() {
|
|
Method::Get | Method::Head => None, // Step 3
|
|
_ => data
|
|
};
|
|
let extracted = data.as_ref().map(|d| d.extract());
|
|
self.request_body_len.set(extracted.as_ref().map(|e| e.len()).unwrap_or(0));
|
|
|
|
// Step 6
|
|
self.upload_events.set(false);
|
|
// Step 7
|
|
self.upload_complete.set(match extracted {
|
|
None => true,
|
|
Some (ref v) if v.len() == 0 => true,
|
|
_ => false
|
|
});
|
|
|
|
if !self.sync.get() {
|
|
// Step 8
|
|
let upload_target = self.upload.root();
|
|
let event_target: JSRef<EventTarget> = EventTargetCast::from_ref(upload_target.r());
|
|
if event_target.has_handlers() {
|
|
self.upload_events.set(true);
|
|
}
|
|
|
|
// Step 9
|
|
self.send_flag.set(true);
|
|
// If one of the event handlers below aborts the fetch by calling
|
|
// abort or open we will need the current generation id to detect it.
|
|
let gen_id = self.generation_id.get();
|
|
self.dispatch_response_progress_event("loadstart".to_owned());
|
|
if self.generation_id.get() != gen_id {
|
|
return Ok(());
|
|
}
|
|
if !self.upload_complete.get() {
|
|
self.dispatch_upload_progress_event("loadstart".to_owned(), Some(0));
|
|
if self.generation_id.get() != gen_id {
|
|
return Ok(());
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
let global = self.global.root();
|
|
let resource_task = global.r().resource_task();
|
|
let (start_chan, start_port) = channel();
|
|
let mut load_data = LoadData::new(self.request_url.borrow().clone().unwrap(), start_chan);
|
|
load_data.data = extracted;
|
|
|
|
#[inline]
|
|
fn join_raw(a: &str, b: &str) -> Vec<u8> {
|
|
let len = a.len() + b.len();
|
|
let mut vec = Vec::with_capacity(len);
|
|
vec.push_all(a.as_bytes());
|
|
vec.push_all(b.as_bytes());
|
|
vec
|
|
}
|
|
|
|
// XHR spec differs from http, and says UTF-8 should be in capitals,
|
|
// instead of "utf-8", which is what Hyper defaults to.
|
|
let params = ";charset=UTF-8";
|
|
let n = "content-type";
|
|
match data {
|
|
Some(eString(_)) =>
|
|
load_data.headers.set_raw(n.to_owned(), vec![join_raw("text/plain", params)]),
|
|
Some(eURLSearchParams(_)) =>
|
|
load_data.headers.set_raw(
|
|
n.to_owned(), vec![join_raw("application/x-www-form-urlencoded", params)]),
|
|
None => ()
|
|
}
|
|
|
|
load_data.preserved_headers = (*self.request_headers.borrow()).clone();
|
|
|
|
if !load_data.preserved_headers.has::<Accept>() {
|
|
let mime = Mime(mime::TopLevel::Star, mime::SubLevel::Star, vec![]);
|
|
load_data.preserved_headers.set(Accept(vec![qitem(mime)]));
|
|
}
|
|
|
|
load_data.method = (*self.request_method.borrow()).clone();
|
|
let (terminate_sender, terminate_receiver) = channel();
|
|
*self.terminate_sender.borrow_mut() = Some(terminate_sender);
|
|
|
|
// CORS stuff
|
|
let referer_url = self.global.root().r().get_url();
|
|
let mode = if self.upload_events.get() {
|
|
RequestMode::ForcedPreflight
|
|
} else {
|
|
RequestMode::CORS
|
|
};
|
|
let mut combined_headers = load_data.headers.clone();
|
|
combined_headers.extend(load_data.preserved_headers.iter());
|
|
let cors_request = CORSRequest::maybe_new(referer_url.clone(), load_data.url.clone(), mode,
|
|
load_data.method.clone(), combined_headers);
|
|
match cors_request {
|
|
Ok(None) => {
|
|
let mut buf = String::new();
|
|
buf.push_str(referer_url.scheme.as_slice());
|
|
buf.push_str("://".as_slice());
|
|
referer_url.serialize_host().map(|ref h| buf.push_str(h.as_slice()));
|
|
referer_url.port().as_ref().map(|&p| {
|
|
buf.push_str(":".as_slice());
|
|
buf.push_str(format!("{}", p).as_slice());
|
|
});
|
|
referer_url.serialize_path().map(|ref h| buf.push_str(h.as_slice()));
|
|
self.request_headers.borrow_mut().set_raw("Referer".to_owned(), vec![buf.into_bytes()]);
|
|
},
|
|
Ok(Some(ref req)) => self.insert_trusted_header("origin".to_owned(),
|
|
format!("{}", req.origin)),
|
|
_ => {}
|
|
}
|
|
|
|
debug!("request_headers = {:?}", *self.request_headers.borrow());
|
|
|
|
let gen_id = self.generation_id.get();
|
|
if self.sync.get() {
|
|
return XMLHttpRequest::fetch(&mut SyncOrAsync::Sync(self), resource_task, load_data,
|
|
terminate_receiver, cors_request, gen_id, start_port);
|
|
} else {
|
|
self.fetch_time.set(time::now().to_timespec().sec);
|
|
let script_chan = global.r().script_chan();
|
|
// Pin the object before launching the fetch task. This is to ensure that
|
|
// the object will stay alive as long as there are (possibly cancelled)
|
|
// inflight events queued up in the script task's port.
|
|
let addr = Trusted::new(self.global.root().r().get_cx(), self,
|
|
script_chan.clone());
|
|
spawn_named("XHRTask".to_owned(), move || {
|
|
let _ = XMLHttpRequest::fetch(&mut SyncOrAsync::Async(addr, script_chan),
|
|
resource_task,
|
|
load_data,
|
|
terminate_receiver,
|
|
cors_request,
|
|
gen_id,
|
|
start_port);
|
|
});
|
|
let timeout = self.timeout.get();
|
|
if timeout > 0 {
|
|
self.set_timeout(timeout);
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
fn Abort(self) {
|
|
self.terminate_ongoing_fetch();
|
|
let state = self.ready_state.get();
|
|
if (state == XMLHttpRequestState::Opened && self.send_flag.get()) ||
|
|
state == XMLHttpRequestState::HeadersReceived ||
|
|
state == XMLHttpRequestState::Loading {
|
|
let gen_id = self.generation_id.get();
|
|
self.process_partial_response(XHRProgress::Errored(gen_id, Abort));
|
|
// If open was called in one of the handlers invoked by the
|
|
// above call then we should terminate the abort sequence
|
|
if self.generation_id.get() != gen_id {
|
|
return
|
|
}
|
|
}
|
|
self.ready_state.set(XMLHttpRequestState::Unsent);
|
|
}
|
|
fn ResponseURL(self) -> DOMString {
|
|
self.response_url.clone()
|
|
}
|
|
fn Status(self) -> u16 {
|
|
self.status.get()
|
|
}
|
|
fn StatusText(self) -> ByteString {
|
|
self.status_text.borrow().clone()
|
|
}
|
|
fn GetResponseHeader(self, name: ByteString) -> Option<ByteString> {
|
|
self.filter_response_headers().iter().find(|h| {
|
|
name.eq_ignore_case(&FromStr::from_str(h.name()).unwrap())
|
|
}).map(|h| {
|
|
ByteString::new(h.value_string().into_bytes())
|
|
})
|
|
}
|
|
fn GetAllResponseHeaders(self) -> ByteString {
|
|
ByteString::new(self.filter_response_headers().to_string().into_bytes())
|
|
}
|
|
fn ResponseType(self) -> XMLHttpRequestResponseType {
|
|
self.response_type.get()
|
|
}
|
|
fn SetResponseType(self, response_type: XMLHttpRequestResponseType) -> ErrorResult {
|
|
match self.global.root() {
|
|
GlobalRoot::Worker(_) if response_type == XMLHttpRequestResponseType::Document
|
|
=> return Ok(()),
|
|
_ => {}
|
|
}
|
|
match self.ready_state.get() {
|
|
XMLHttpRequestState::Loading | XMLHttpRequestState::XHRDone => Err(InvalidState),
|
|
_ if self.sync.get() => Err(InvalidAccess),
|
|
_ => {
|
|
self.response_type.set(response_type);
|
|
Ok(())
|
|
}
|
|
}
|
|
}
|
|
#[allow(unsafe_blocks)]
|
|
fn Response(self, cx: *mut JSContext) -> JSVal {
|
|
match self.response_type.get() {
|
|
_empty | Text => {
|
|
let ready_state = self.ready_state.get();
|
|
if ready_state == XMLHttpRequestState::XHRDone || ready_state == XMLHttpRequestState::Loading {
|
|
self.text_response().to_jsval(cx)
|
|
} else {
|
|
"".to_jsval(cx)
|
|
}
|
|
},
|
|
_ if self.ready_state.get() != XMLHttpRequestState::XHRDone => NullValue(),
|
|
Json => {
|
|
let decoded = UTF_8.decode(self.response.borrow().as_slice(), DecoderTrap::Replace).unwrap().to_owned();
|
|
let decoded: Vec<u16> = decoded.as_slice().utf16_units().collect();
|
|
let mut vp = UndefinedValue();
|
|
unsafe {
|
|
if JS_ParseJSON(cx, decoded.as_ptr(), decoded.len() as u32, &mut vp) == 0 {
|
|
JS_ClearPendingException(cx);
|
|
return NullValue();
|
|
}
|
|
}
|
|
vp
|
|
}
|
|
_ => {
|
|
// XXXManishearth handle other response types
|
|
self.response.borrow().to_jsval(cx)
|
|
}
|
|
}
|
|
}
|
|
fn GetResponseText(self) -> Fallible<DOMString> {
|
|
match self.response_type.get() {
|
|
_empty | Text => {
|
|
match self.ready_state.get() {
|
|
XMLHttpRequestState::Loading | XMLHttpRequestState::XHRDone => Ok(self.text_response()),
|
|
_ => Ok("".to_owned())
|
|
}
|
|
},
|
|
_ => Err(InvalidState)
|
|
}
|
|
}
|
|
fn GetResponseXML(self) -> Option<Temporary<Document>> {
|
|
self.response_xml.get()
|
|
}
|
|
}
|
|
|
|
|
|
impl XMLHttpRequestDerived for EventTarget {
|
|
fn is_xmlhttprequest(&self) -> bool {
|
|
match *self.type_id() {
|
|
EventTargetTypeId::XMLHttpRequestEventTarget(XMLHttpRequestEventTargetTypeId::XMLHttpRequest) => true,
|
|
_ => false
|
|
}
|
|
}
|
|
}
|
|
|
|
pub type TrustedXHRAddress = Trusted<XMLHttpRequest>;
|
|
|
|
trait PrivateXMLHttpRequestHelpers {
|
|
fn change_ready_state(self, XMLHttpRequestState);
|
|
fn process_partial_response(self, progress: XHRProgress);
|
|
fn terminate_ongoing_fetch(self);
|
|
fn insert_trusted_header(self, name: String, value: String);
|
|
fn dispatch_progress_event(self, upload: bool, type_: DOMString, loaded: u64, total: Option<u64>);
|
|
fn dispatch_upload_progress_event(self, type_: DOMString, partial_load: Option<u64>);
|
|
fn dispatch_response_progress_event(self, type_: DOMString);
|
|
fn text_response(self) -> DOMString;
|
|
fn set_timeout(self, timeout:u32);
|
|
fn cancel_timeout(self);
|
|
fn filter_response_headers(self) -> Headers;
|
|
}
|
|
|
|
impl<'a> PrivateXMLHttpRequestHelpers for JSRef<'a, XMLHttpRequest> {
|
|
fn change_ready_state(self, rs: XMLHttpRequestState) {
|
|
assert!(self.ready_state.get() != rs);
|
|
self.ready_state.set(rs);
|
|
let global = self.global.root();
|
|
let event = Event::new(global.r(),
|
|
"readystatechange".to_owned(),
|
|
EventBubbles::DoesNotBubble,
|
|
EventCancelable::Cancelable).root();
|
|
let target: JSRef<EventTarget> = EventTargetCast::from_ref(self);
|
|
event.r().fire(target);
|
|
}
|
|
|
|
fn process_partial_response(self, progress: XHRProgress) {
|
|
let msg_id = progress.generation_id();
|
|
|
|
// Aborts processing if abort() or open() was called
|
|
// (including from one of the event handlers called below)
|
|
macro_rules! return_if_fetch_was_terminated(
|
|
() => (
|
|
if msg_id != self.generation_id.get() {
|
|
return
|
|
}
|
|
);
|
|
);
|
|
|
|
// Ignore message if it belongs to a terminated fetch
|
|
return_if_fetch_was_terminated!();
|
|
|
|
match progress {
|
|
XHRProgress::HeadersReceived(_, headers, status) => {
|
|
assert!(self.ready_state.get() == XMLHttpRequestState::Opened);
|
|
// For synchronous requests, this should not fire any events, and just store data
|
|
// XXXManishearth Find a way to track partial progress of the send (onprogresss for XHRUpload)
|
|
|
|
// Part of step 13, send() (processing request end of file)
|
|
// Substep 1
|
|
self.upload_complete.set(true);
|
|
// Substeps 2-4
|
|
if !self.sync.get() {
|
|
self.dispatch_upload_progress_event("progress".to_owned(), None);
|
|
return_if_fetch_was_terminated!();
|
|
self.dispatch_upload_progress_event("load".to_owned(), None);
|
|
return_if_fetch_was_terminated!();
|
|
self.dispatch_upload_progress_event("loadend".to_owned(), None);
|
|
return_if_fetch_was_terminated!();
|
|
}
|
|
// Part of step 13, send() (processing response)
|
|
// XXXManishearth handle errors, if any (substep 1)
|
|
// Substep 2
|
|
status.map(|RawStatus(code, reason)| {
|
|
self.status.set(code);
|
|
*self.status_text.borrow_mut() = ByteString::new(reason.into_owned().into_bytes());
|
|
});
|
|
headers.as_ref().map(|h| *self.response_headers.borrow_mut() = h.clone());
|
|
|
|
// Substep 3
|
|
if !self.sync.get() {
|
|
self.change_ready_state(XMLHttpRequestState::HeadersReceived);
|
|
}
|
|
},
|
|
XHRProgress::Loading(_, partial_response) => {
|
|
// For synchronous requests, this should not fire any events, and just store data
|
|
// Part of step 11, send() (processing response body)
|
|
// XXXManishearth handle errors, if any (substep 2)
|
|
|
|
*self.response.borrow_mut() = partial_response;
|
|
if !self.sync.get() {
|
|
if self.ready_state.get() == XMLHttpRequestState::HeadersReceived {
|
|
self.change_ready_state(XMLHttpRequestState::Loading);
|
|
return_if_fetch_was_terminated!();
|
|
}
|
|
self.dispatch_response_progress_event("progress".to_owned());
|
|
}
|
|
},
|
|
XHRProgress::Done(_) => {
|
|
assert!(self.ready_state.get() == XMLHttpRequestState::HeadersReceived ||
|
|
self.ready_state.get() == XMLHttpRequestState::Loading ||
|
|
self.sync.get());
|
|
|
|
// Part of step 11, send() (processing response end of file)
|
|
// XXXManishearth handle errors, if any (substep 2)
|
|
|
|
// Subsubsteps 5-7
|
|
self.send_flag.set(false);
|
|
self.change_ready_state(XMLHttpRequestState::XHRDone);
|
|
return_if_fetch_was_terminated!();
|
|
// Subsubsteps 10-12
|
|
self.dispatch_response_progress_event("progress".to_owned());
|
|
return_if_fetch_was_terminated!();
|
|
self.dispatch_response_progress_event("load".to_owned());
|
|
return_if_fetch_was_terminated!();
|
|
self.dispatch_response_progress_event("loadend".to_owned());
|
|
},
|
|
XHRProgress::Errored(_, e) => {
|
|
self.send_flag.set(false);
|
|
// XXXManishearth set response to NetworkError
|
|
self.change_ready_state(XMLHttpRequestState::XHRDone);
|
|
return_if_fetch_was_terminated!();
|
|
|
|
let errormsg = match e {
|
|
Abort => "abort",
|
|
Timeout => "timeout",
|
|
_ => "error",
|
|
};
|
|
|
|
let upload_complete: &Cell<bool> = &self.upload_complete;
|
|
if !upload_complete.get() {
|
|
upload_complete.set(true);
|
|
self.dispatch_upload_progress_event("progress".to_owned(), None);
|
|
return_if_fetch_was_terminated!();
|
|
self.dispatch_upload_progress_event(errormsg.to_owned(), None);
|
|
return_if_fetch_was_terminated!();
|
|
self.dispatch_upload_progress_event("loadend".to_owned(), None);
|
|
return_if_fetch_was_terminated!();
|
|
}
|
|
self.dispatch_response_progress_event("progress".to_owned());
|
|
return_if_fetch_was_terminated!();
|
|
self.dispatch_response_progress_event(errormsg.to_owned());
|
|
return_if_fetch_was_terminated!();
|
|
self.dispatch_response_progress_event("loadend".to_owned());
|
|
}
|
|
}
|
|
}
|
|
|
|
fn terminate_ongoing_fetch(self) {
|
|
let GenerationId(prev_id) = self.generation_id.get();
|
|
self.generation_id.set(GenerationId(prev_id + 1));
|
|
self.terminate_sender.borrow().as_ref().map(|s| s.send(TerminateReason::AbortedOrReopened));
|
|
}
|
|
|
|
fn insert_trusted_header(self, name: String, value: String) {
|
|
// Insert a header without checking spec-compliance
|
|
// Use for hardcoded headers
|
|
self.request_headers.borrow_mut().set_raw(name, vec![value.into_bytes()]);
|
|
}
|
|
|
|
fn dispatch_progress_event(self, upload: bool, type_: DOMString, loaded: u64, total: Option<u64>) {
|
|
let global = self.global.root();
|
|
let upload_target = self.upload.root();
|
|
let progressevent = ProgressEvent::new(global.r(),
|
|
type_, false, false,
|
|
total.is_some(), loaded,
|
|
total.unwrap_or(0)).root();
|
|
let target: JSRef<EventTarget> = if upload {
|
|
EventTargetCast::from_ref(upload_target.r())
|
|
} else {
|
|
EventTargetCast::from_ref(self)
|
|
};
|
|
let event: JSRef<Event> = EventCast::from_ref(progressevent.r());
|
|
event.fire(target);
|
|
}
|
|
|
|
fn dispatch_upload_progress_event(self, type_: DOMString, partial_load: Option<u64>) {
|
|
// If partial_load is None, loading has completed and we can just use the value from the request body
|
|
|
|
let total = self.request_body_len.get() as u64;
|
|
self.dispatch_progress_event(true, type_, partial_load.unwrap_or(total), Some(total));
|
|
}
|
|
|
|
fn dispatch_response_progress_event(self, type_: DOMString) {
|
|
let len = self.response.borrow().len() as u64;
|
|
let total = self.response_headers.borrow().get::<ContentLength>().map(|x| {**x as u64});
|
|
self.dispatch_progress_event(false, type_, len, total);
|
|
}
|
|
fn set_timeout(self, timeout: u32) {
|
|
// Sets up the object to timeout in a given number of milliseconds
|
|
// This will cancel all previous timeouts
|
|
let oneshot = self.timer.borrow_mut()
|
|
.oneshot(Duration::milliseconds(timeout as i64));
|
|
let terminate_sender = (*self.terminate_sender.borrow()).clone();
|
|
spawn_named("XHR:Timer".to_owned(), move || {
|
|
match oneshot.recv() {
|
|
Ok(_) => {
|
|
terminate_sender.map(|s| s.send(TerminateReason::TimedOut));
|
|
},
|
|
Err(_) => {
|
|
// This occurs if xhr.timeout (the sender) goes out of scope (i.e, xhr went out of scope)
|
|
// or if the oneshot timer was overwritten. The former case should not happen due to pinning.
|
|
debug!("XHR timeout was overwritten or canceled")
|
|
}
|
|
}
|
|
}
|
|
);
|
|
}
|
|
|
|
fn cancel_timeout(self) {
|
|
// oneshot() closes the previous channel, canceling the timeout
|
|
self.timer.borrow_mut().oneshot(Duration::zero());
|
|
}
|
|
|
|
fn text_response(self) -> DOMString {
|
|
let mut encoding = UTF_8 as EncodingRef;
|
|
match self.response_headers.borrow().get() {
|
|
Some(&ContentType(mime::Mime(_, _, ref params))) => {
|
|
for &(ref name, ref value) in params.iter() {
|
|
if name == &mime::Attr::Charset {
|
|
encoding = encoding_from_whatwg_label(value.to_string().as_slice()).unwrap_or(encoding);
|
|
}
|
|
}
|
|
},
|
|
None => {}
|
|
}
|
|
|
|
// According to Simon, decode() should never return an error, so unwrap()ing
|
|
// the result should be fine. XXXManishearth have a closer look at this later
|
|
encoding.decode(self.response.borrow().as_slice(), DecoderTrap::Replace).unwrap().to_owned()
|
|
}
|
|
fn filter_response_headers(self) -> Headers {
|
|
// http://fetch.spec.whatwg.org/#concept-response-header-list
|
|
use std::fmt;
|
|
use hyper::header::{Header, HeaderFormat};
|
|
use hyper::header::SetCookie;
|
|
|
|
// a dummy header so we can use headers.remove::<SetCookie2>()
|
|
#[derive(Clone)]
|
|
struct SetCookie2;
|
|
impl Header for SetCookie2 {
|
|
fn header_name() -> &'static str {
|
|
"set-cookie2"
|
|
}
|
|
|
|
fn parse_header(_: &[Vec<u8>]) -> Option<SetCookie2> {
|
|
unimplemented!()
|
|
}
|
|
}
|
|
impl HeaderFormat for SetCookie2 {
|
|
fn fmt_header(&self, _f: &mut fmt::Formatter) -> fmt::Result {
|
|
unimplemented!()
|
|
}
|
|
}
|
|
|
|
let mut headers = self.response_headers.borrow().clone();
|
|
headers.remove::<SetCookie>();
|
|
headers.remove::<SetCookie2>();
|
|
// XXXManishearth additional CORS filtering goes here
|
|
headers
|
|
}
|
|
}
|
|
|
|
trait Extractable {
|
|
fn extract(&self) -> Vec<u8>;
|
|
}
|
|
impl Extractable for SendParam {
|
|
fn extract(&self) -> Vec<u8> {
|
|
// http://fetch.spec.whatwg.org/#concept-fetchbodyinit-extract
|
|
let encoding = UTF_8 as EncodingRef;
|
|
match *self {
|
|
eString(ref s) => encoding.encode(s.as_slice(), EncoderTrap::Replace).unwrap(),
|
|
eURLSearchParams(ref usp) => usp.root().r().serialize(None) // Default encoding is UTF8
|
|
}
|
|
}
|
|
}
|