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Implement fetch (partial #4576)

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This commit is contained in:
Keith Yeung 2015-05-18 19:01:38 -04:00
parent 90aacf00f8
commit 3351ddf213
1 changed files with 62 additions and 13 deletions
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75
components/net/fetch/request.rs
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@ -5,22 +5,24 @@
use url::Url;
use hyper::method::Method;
use hyper::mime::{Mime, TopLevel, SubLevel, Attr, Value};
use hyper::header::{Headers, ContentType, IfModifiedSince, IfNoneMatch, Accept};
use hyper::header::{IfUnmodifiedSince, IfMatch, IfRange, Location, HeaderView};
use hyper::header::{AcceptLanguage, ContentLanguage};
use hyper::header::{Header, Headers, ContentType, IfModifiedSince, IfNoneMatch};
use hyper::header::{Accept, IfUnmodifiedSince, IfMatch, IfRange, Location};
use hyper::header::{HeaderView, AcceptLanguage, ContentLanguage, Language};
use hyper::header::{QualityItem, qitem, q};
use hyper::status::StatusCode;
use fetch::cors_cache::{CORSCache, CacheRequestDetails};
use fetch::response::{Response, ResponseType};
use std::ascii::AsciiExt;
use std::str::FromStr;
/// A [request context](https://fetch.spec.whatwg.org/#concept-request-context)
#[derive(Copy, Clone, PartialEq)]
pub enum Context {
Audio, Beacon, CSPreport, Download, Embed, Eventsource,
Favicon, Fetch, Font, Form, Frame, Hyperlink, IFrame, Image,
ImageSet, Import, Internal, Location, Manifest, Object, Ping,
Plugin, Prefetch, Script, ServiceWorker, SharedWorker, Subresource,
Style, Track, Video, Worker, XMLHttpRequest, XSLT
ImageSet, Import, Internal, Location, Manifest, MetaRefresh, Object,
Ping, Plugin, Prefetch, PreRender, Script, ServiceWorker, SharedWorker,
Subresource, Style, Track, Video, Worker, XMLHttpRequest, XSLT
}
/// A [request context frame type](https://fetch.spec.whatwg.org/#concept-request-context-frame-type)
@ -143,9 +145,56 @@ impl Request {
}
}
// [Fetch](https://fetch.spec.whatwg.org#concept-fetch)
pub fn fetch(&mut self, _cors_flag: bool) -> Response {
// TODO: Implement fetch spec
/// [Fetch](https://fetch.spec.whatwg.org#concept-fetch)
pub fn fetch(&mut self, cors_flag: bool) -> Response {
// Step 1
if self.context != Context::Fetch && !self.headers.has::<Accept>() {
// Substep 1
let value = match self.context {
Context::Favicon | Context::Image | Context::ImageSet
=> vec![qitem(Mime(TopLevel::Image, SubLevel::Png, vec![])),
// FIXME: This should properly generate a MimeType that has a
// SubLevel of svg+xml (https://github.com/hyperium/mime.rs/issues/22)
qitem(Mime(TopLevel::Image, SubLevel::Ext("svg+xml".to_string()), vec![])),
QualityItem::new(Mime(TopLevel::Image, SubLevel::Star, vec![]), q(0.8)),
QualityItem::new(Mime(TopLevel::Star, SubLevel::Star, vec![]), q(0.5))],
Context::Form | Context::Frame | Context::Hyperlink |
Context::IFrame | Context::Location | Context::MetaRefresh |
Context::PreRender
=> vec![qitem(Mime(TopLevel::Text, SubLevel::Html, vec![])),
// FIXME: This should properly generate a MimeType that has a
// SubLevel of xhtml+xml (https://github.com/hyperium/mime.rs/issues/22)
qitem(Mime(TopLevel::Application, SubLevel::Ext("xhtml+xml".to_string()), vec![])),
QualityItem::new(Mime(TopLevel::Application, SubLevel::Xml, vec![]), q(0.9)),
QualityItem::new(Mime(TopLevel::Star, SubLevel::Star, vec![]), q(0.8))],
Context::Internal if self.context_frame_type != ContextFrameType::ContextNone
=> vec![qitem(Mime(TopLevel::Text, SubLevel::Html, vec![])),
// FIXME: This should properly generate a MimeType that has a
// SubLevel of xhtml+xml (https://github.com/hyperium/mime.rs/issues/22)
qitem(Mime(TopLevel::Application, SubLevel::Ext("xhtml+xml".to_string()), vec![])),
QualityItem::new(Mime(TopLevel::Application, SubLevel::Xml, vec![]), q(0.9)),
QualityItem::new(Mime(TopLevel::Star, SubLevel::Star, vec![]), q(0.8))],
Context::Style
=> vec![qitem(Mime(TopLevel::Text, SubLevel::Css, vec![])),
QualityItem::new(Mime(TopLevel::Star, SubLevel::Star, vec![]), q(0.1))],
_ => vec![qitem(Mime(TopLevel::Star, SubLevel::Star, vec![]))]
};
// Substep 2
self.headers.set(Accept(value));
}
// Step 2
if self.context != Context::Fetch && !self.headers.has::<AcceptLanguage>() {
self.headers.set(AcceptLanguage(vec![qitem(Language::from_str("en-US").unwrap())]));
}
// TODO: Figure out what a Priority object is
// Step 3
// Step 4
self.main_fetch(cors_flag)
}
/// [Main fetch](https://fetch.spec.whatwg.org/#concept-main-fetch)
pub fn main_fetch(&mut self, _cors_flag: bool) -> Response {
// TODO: Implement main fetch spec
Response::network_error()
}
@ -174,7 +223,7 @@ impl Request {
}
}
// [HTTP fetch](https://fetch.spec.whatwg.org#http-fetch)
/// [HTTP fetch](https://fetch.spec.whatwg.org#http-fetch)
pub fn http_fetch(&mut self, cors_flag: bool, cors_preflight_flag: bool, authentication_fetch_flag: bool) -> Response {
// Step 1
let mut response: Option<Response> = None;
@ -337,19 +386,19 @@ impl Request {
response
}
// [HTTP network or cache fetch](https://fetch.spec.whatwg.org#http-network-or-cache-fetch)
/// [HTTP network or cache fetch](https://fetch.spec.whatwg.org#http-network-or-cache-fetch)
pub fn http_network_or_cache_fetch(&mut self, _credentials_flag: bool, _authentication_fetch_flag: bool) -> Response {
// TODO: Implement HTTP network or cache fetch spec
Response::network_error()
}
// [CORS preflight fetch](https://fetch.spec.whatwg.org#cors-preflight-fetch)
/// [CORS preflight fetch](https://fetch.spec.whatwg.org#cors-preflight-fetch)
pub fn preflight_fetch(&mut self) -> Response {
// TODO: Implement preflight fetch spec
Response::network_error()
}
// [CORS check](https://fetch.spec.whatwg.org#concept-cors-check)
/// [CORS check](https://fetch.spec.whatwg.org#concept-cors-check)
pub fn cors_check(&mut self, response: &Response) -> Result<(), ()> {
// TODO: Implement CORS check spec
Err(())