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authorAnthony Ramine <n.oxyde@gmail.com>2016-10-08 17:59:51 +0200
committerAnthony Ramine <n.oxyde@gmail.com>2016-10-11 15:03:22 +0200
commit02162a8bdae61430a1b9f4529330fad699072ff3 (patch)
treec6509607f8b1baaf6710a1892e55ba996e1e90df /components/script/parse
parent881f7f4de7132cbe7f5aec17f535ff501112ac3c (diff)
downloadservo-02162a8bdae61430a1b9f4529330fad699072ff3.tar.gz
servo-02162a8bdae61430a1b9f4529330fad699072ff3.zip
Move ParserContext to script::parse
Diffstat (limited to 'components/script/parse')
-rw-r--r--components/script/parse/mod.rs172
1 files changed, 172 insertions, 0 deletions
diff --git a/components/script/parse/mod.rs b/components/script/parse/mod.rs
index ba05ec839d4..dc874baef45 100644
--- a/components/script/parse/mod.rs
+++ b/components/script/parse/mod.rs
@@ -2,15 +2,33 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+use document_loader::LoadType;
+use dom::bindings::codegen::Bindings::DocumentBinding::DocumentMethods;
+use dom::bindings::codegen::Bindings::HTMLImageElementBinding::HTMLImageElementMethods;
+use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
use dom::bindings::inheritance::Castable;
use dom::bindings::js::{JS, Root};
use dom::bindings::refcounted::Trusted;
+use dom::bindings::str::DOMString;
+use dom::htmlimageelement::HTMLImageElement;
+use dom::node::Node;
use dom::servohtmlparser::ServoHTMLParser;
use dom::servoparser::ServoParser;
use dom::servoxmlparser::ServoXMLParser;
use dom::window::Window;
+use encoding::all::UTF_8;
+use encoding::types::{DecoderTrap, Encoding};
+use hyper::header::ContentType;
+use hyper::mime::{Mime, SubLevel, TopLevel};
+use hyper_serde::Serde;
+use msg::constellation_msg::PipelineId;
+use net_traits::{AsyncResponseListener, Metadata, NetworkError};
+use network_listener::PreInvoke;
+use script_thread::ScriptThread;
use std::cell::UnsafeCell;
use std::ptr;
+use url::Url;
+use util::resource_files::read_resource_file;
pub mod html;
pub mod xml;
@@ -160,3 +178,157 @@ impl<'a> ParserRef<'a> {
}
}
+/// The context required for asynchronously fetching a document
+/// and parsing it progressively.
+pub struct ParserContext {
+ /// The parser that initiated the request.
+ parser: Option<TrustedParser>,
+ /// Is this a synthesized document
+ is_synthesized_document: bool,
+ /// The pipeline associated with this document.
+ id: PipelineId,
+ /// The URL for this document.
+ url: Url,
+}
+
+impl ParserContext {
+ pub fn new(id: PipelineId, url: Url) -> ParserContext {
+ ParserContext {
+ parser: None,
+ is_synthesized_document: false,
+ id: id,
+ url: url,
+ }
+ }
+}
+
+impl AsyncResponseListener for ParserContext {
+ fn headers_available(&mut self, meta_result: Result<Metadata, NetworkError>) {
+ let mut ssl_error = None;
+ let metadata = match meta_result {
+ Ok(meta) => Some(meta),
+ Err(NetworkError::SslValidation(url, reason)) => {
+ ssl_error = Some(reason);
+ let mut meta = Metadata::default(url);
+ let mime: Option<Mime> = "text/html".parse().ok();
+ meta.set_content_type(mime.as_ref());
+ Some(meta)
+ },
+ Err(_) => None,
+ };
+ let content_type =
+ metadata.clone().and_then(|meta| meta.content_type).map(Serde::into_inner);
+ let parser = match ScriptThread::page_headers_available(&self.id,
+ metadata) {
+ Some(parser) => parser,
+ None => return,
+ };
+
+ let parser = parser.r();
+ let servo_parser = parser.as_servo_parser();
+ self.parser = Some(match parser {
+ ParserRef::HTML(parser) => TrustedParser::HTML(
+ Trusted::new(parser)),
+ ParserRef::XML(parser) => TrustedParser::XML(
+ Trusted::new(parser)),
+ });
+
+ match content_type {
+ Some(ContentType(Mime(TopLevel::Image, _, _))) => {
+ self.is_synthesized_document = true;
+ let page = "<html><body></body></html>".into();
+ servo_parser.push_input_chunk(page);
+ parser.parse_sync();
+
+ let doc = servo_parser.document();
+ let doc_body = Root::upcast::<Node>(doc.GetBody().unwrap());
+ let img = HTMLImageElement::new(atom!("img"), None, doc);
+ img.SetSrc(DOMString::from(self.url.to_string()));
+ doc_body.AppendChild(&Root::upcast::<Node>(img)).expect("Appending failed");
+
+ },
+ Some(ContentType(Mime(TopLevel::Text, SubLevel::Plain, _))) => {
+ // https://html.spec.whatwg.org/multipage/#read-text
+ let page = "<pre>\n".into();
+ servo_parser.push_input_chunk(page);
+ parser.parse_sync();
+ parser.set_plaintext_state();
+ },
+ Some(ContentType(Mime(TopLevel::Text, SubLevel::Html, _))) => { // Handle text/html
+ if let Some(reason) = ssl_error {
+ self.is_synthesized_document = true;
+ let page_bytes = read_resource_file("badcert.html").unwrap();
+ let page = String::from_utf8(page_bytes).unwrap();
+ let page = page.replace("${reason}", &reason);
+ servo_parser.push_input_chunk(page);
+ parser.parse_sync();
+ }
+ },
+ Some(ContentType(Mime(TopLevel::Text, SubLevel::Xml, _))) => {}, // Handle text/xml
+ Some(ContentType(Mime(toplevel, sublevel, _))) => {
+ if toplevel.as_str() == "application" && sublevel.as_str() == "xhtml+xml" {
+ // Handle xhtml (application/xhtml+xml).
+ return;
+ }
+
+ // Show warning page for unknown mime types.
+ let page = format!("<html><body><p>Unknown content type ({}/{}).</p></body></html>",
+ toplevel.as_str(), sublevel.as_str());
+ self.is_synthesized_document = true;
+ servo_parser.push_input_chunk(page);
+ parser.parse_sync();
+ },
+ None => {
+ // No content-type header.
+ // Merge with #4212 when fixed.
+ }
+ }
+ }
+
+ fn data_available(&mut self, payload: Vec<u8>) {
+ if !self.is_synthesized_document {
+ // FIXME: use Vec<u8> (html5ever #34)
+ let data = UTF_8.decode(&payload, DecoderTrap::Replace).unwrap();
+ let parser = match self.parser.as_ref() {
+ Some(parser) => parser.root(),
+ None => return,
+ };
+ parser.r().parse_chunk(data);
+ }
+ }
+
+ fn response_complete(&mut self, status: Result<(), NetworkError>) {
+ let parser = match self.parser.as_ref() {
+ Some(parser) => parser.root(),
+ None => return,
+ };
+
+ if let Err(NetworkError::Internal(ref reason)) = status {
+ // Show an error page for network errors,
+ // certificate errors are handled earlier.
+ self.is_synthesized_document = true;
+ let parser = parser.r();
+ let page_bytes = read_resource_file("neterror.html").unwrap();
+ let page = String::from_utf8(page_bytes).unwrap();
+ let page = page.replace("${reason}", reason);
+ parser.as_servo_parser().push_input_chunk(page);
+ parser.parse_sync();
+ } else if let Err(err) = status {
+ // TODO(Savago): we should send a notification to callers #5463.
+ debug!("Failed to load page URL {}, error: {:?}", self.url, err);
+ }
+
+ let parser = parser.r();
+ let servo_parser = parser.as_servo_parser();
+
+ servo_parser.document()
+ .finish_load(LoadType::PageSource(self.url.clone()));
+
+ servo_parser.mark_last_chunk_received();
+ if !parser.is_suspended() {
+ parser.parse_sync();
+ }
+ }
+}
+
+impl PreInvoke for ParserContext {}
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-29 00:37:04 +0000