Remove CoreResourceMsg::Load.

Also remove now-dead code that rustc warns about.

It turns out that we lost support for some of our custom URL schemes; I intend
to reimplement them, but I believe this will be significantly easier to do
once the legacy code is out of the way.

components/net/Cargo.toml

@@ -16,7 +16,6 @@ content-blocker = "0.2.1"
 cookie = {version = "0.2.5", features = ["serialize-rustc"]}
 devtools_traits = {path = "../devtools_traits"}
 flate2 = "0.2.0"
-fnv = "1.0"
 hyper = "0.9.9"
 hyper_serde = "0.1.4"
 immeta = "0.3.1"

components/net/blob_loader.rs

@@ -5,120 +5,16 @@
 use filemanager_thread::FileManager;
 use hyper::header::{Charset, ContentLength, ContentType, Headers};
 use hyper::header::{ContentDisposition, DispositionParam, DispositionType};
-use hyper_serde::Serde;
 use ipc_channel::ipc;
 use mime::{Attr, Mime};
-use mime_classifier::MimeClassifier;
-use net_traits::{LoadConsumer, LoadData, Metadata, NetworkError};
-use net_traits::ProgressMsg::{Done, Payload};
+use net_traits::NetworkError;
 use net_traits::blob_url_store::parse_blob_url;
 use net_traits::filemanager_thread::ReadFileProgress;
-use net_traits::response::HttpsState;
-use resource_thread::{send_error, start_sending_sniffed_opt};
-use resource_thread::CancellationListener;
 use servo_url::ServoUrl;
-use std::boxed::FnBox;
-use std::sync::Arc;
-use util::thread::spawn_named;
 
 // TODO: Check on GET
 // https://w3c.github.io/FileAPI/#requestResponseModel
 
-pub fn factory(filemanager: FileManager)
-              -> Box<FnBox(LoadData, LoadConsumer, Arc<MimeClassifier>, CancellationListener) + Send> {
-    box move |load_data: LoadData, start_chan, classifier, cancel_listener| {
-        spawn_named(format!("blob loader for {}", load_data.url), move || {
-            load_blob(load_data, start_chan, classifier, filemanager, cancel_listener);
-        })
-    }
-}
-
-fn load_blob(load_data: LoadData, start_chan: LoadConsumer,
-             classifier: Arc<MimeClassifier>,
-             filemanager: FileManager,
-             cancel_listener: CancellationListener) {
-    let (chan, recv) = ipc::channel().unwrap();
-    if let Ok((id, origin, _fragment)) = parse_blob_url(&load_data.url.clone()) {
-        let check_url_validity = true;
-        filemanager.read_file(chan, id, check_url_validity, origin, Some(cancel_listener));
-
-        // Receive first chunk
-        match recv.recv().unwrap() {
-            Ok(ReadFileProgress::Meta(blob_buf)) => {
-                let content_type: Mime = blob_buf.type_string.parse().unwrap_or(mime!(Text / Plain));
-                let charset = content_type.get_param(Attr::Charset);
-
-                let mut headers = Headers::new();
-
-                if let Some(name) = blob_buf.filename {
-                    let charset = charset.and_then(|c| c.as_str().parse().ok());
-                    headers.set(ContentDisposition {
-                        disposition: DispositionType::Inline,
-                        parameters: vec![
-                            DispositionParam::Filename(charset.unwrap_or(Charset::Us_Ascii),
-                                                       None, name.as_bytes().to_vec())
-                        ]
-                    });
-                }
-
-                headers.set(ContentType(content_type.clone()));
-                headers.set(ContentLength(blob_buf.size as u64));
-
-                let metadata = Metadata {
-                    final_url: load_data.url.clone(),
-                    content_type: Some(Serde(ContentType(content_type.clone()))),
-                    charset: charset.map(|c| c.as_str().to_string()),
-                    headers: Some(Serde(headers)),
-                    // https://w3c.github.io/FileAPI/#TwoHundredOK
-                    status: Some((200, b"OK".to_vec())),
-                    https_state: HttpsState::None,
-                    referrer: None,
-                };
-
-                if let Ok(chan) =
-                    start_sending_sniffed_opt(start_chan, metadata, classifier,
-                                              &blob_buf.bytes, load_data.context.clone()) {
-                    let _ = chan.send(Payload(blob_buf.bytes));
-
-                    loop {
-                        match recv.recv().unwrap() {
-                            Ok(ReadFileProgress::Partial(bytes)) => {
-                                let _ = chan.send(Payload(bytes));
-                            }
-                            Ok(ReadFileProgress::EOF) => {
-                                let _ = chan.send(Done(Ok(())));
-                                return;
-                            }
-                            Ok(_) => {
-                                let err = NetworkError::Internal("Invalid filemanager reply".to_string());
-                                let _ = chan.send(Done(Err(err)));
-                                return;
-                            }
-                            Err(e) => {
-                                let err = NetworkError::Internal(format!("{:?}", e));
-                                let _ = chan.send(Done(Err(err)));
-                                return;
-                            }
-                        }
-                    }
-                }
-            }
-            Ok(_) => {
-                let err = NetworkError::Internal("Invalid filemanager reply".to_string());
-                send_error(load_data.url, err, start_chan);
-            }
-            Err(e) => {
-                let err = NetworkError::Internal(format!("{:?}", e));
-                send_error(load_data.url, err, start_chan);
-            }
-        }
-    } else {
-        let e = format!("Invalid blob URL format {:?}", load_data.url);
-        let format_err = NetworkError::Internal(e);
-        send_error(load_data.url.clone(), format_err, start_chan);
-    }
-}
-
 /// https://fetch.spec.whatwg.org/#concept-basic-fetch (partial)
 // TODO: make async.
 pub fn load_blob_sync

components/net/chrome_loader.rs

@@ -2,13 +2,8 @@
  * 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 file_loader;
-use mime_classifier::MimeClassifier;
-use net_traits::{LoadConsumer, LoadData, NetworkError};
-use resource_thread::{CancellationListener, send_error};
 use servo_url::ServoUrl;
 use std::fs::canonicalize;
-use std::sync::Arc;
 use url::percent_encoding::percent_decode;
 use util::resource_files::resources_dir_path;
 
@@ -34,20 +29,3 @@ pub fn resolve_chrome_url(url: &ServoUrl) -> Result<ServoUrl, ()> {
         _ => Err(())
     }
 }
-
-pub fn factory(mut load_data: LoadData,
-               start_chan: LoadConsumer,
-               classifier: Arc<MimeClassifier>,
-               cancel_listener: CancellationListener) {
-    let file_url = match resolve_chrome_url(&load_data.url) {
-        Ok(url) => url,
-        Err(_) => {
-            send_error(load_data.url,
-                       NetworkError::Internal("Invalid chrome URL.".to_owned()),
-                       start_chan);
-            return;
-        }
-    };
-    load_data.url = file_url;
-    file_loader::factory(load_data, start_chan, classifier, cancel_listener)
-}

components/net/data_loader.rs

@@ -3,28 +3,11 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use hyper::mime::{Attr, Mime, SubLevel, TopLevel, Value};
-use mime_classifier::MimeClassifier;
-use net_traits::{LoadData, Metadata, NetworkError};
-use net_traits::LoadConsumer;
-use net_traits::ProgressMsg::{Done, Payload};
-use resource_thread::{CancellationListener, send_error, start_sending_sniffed_opt};
 use rustc_serialize::base64::FromBase64;
 use servo_url::ServoUrl;
-use std::sync::Arc;
 use url::Position;
 use url::percent_encoding::percent_decode;
 
-pub fn factory(load_data: LoadData,
-               senders: LoadConsumer,
-               classifier: Arc<MimeClassifier>,
-               cancel_listener: CancellationListener) {
-    // NB: we don't spawn a new thread.
-    // Hypothesis: data URLs are too small for parallel base64 etc. to be worth it.
-    // Should be tested at some point.
-    // Left in separate function to allow easy moving to a thread, if desired.
-    load(load_data, senders, classifier, cancel_listener)
-}
-
 pub enum DecodeError {
     InvalidDataUri,
     NonBase64DataUri,
@@ -70,33 +53,3 @@ pub fn decode(url: &ServoUrl) -> Result<DecodeData, DecodeError> {
     }
     Ok((content_type, bytes))
 }
-
-pub fn load(load_data: LoadData,
-            start_chan: LoadConsumer,
-            classifier: Arc<MimeClassifier>,
-            cancel_listener: CancellationListener) {
-    let url = load_data.url;
-
-    if cancel_listener.is_cancelled() {
-        return;
-    }
-
-    match decode(&url) {
-        Ok((content_type, bytes)) => {
-            let mut metadata = Metadata::default(url);
-            metadata.set_content_type(Some(content_type).as_ref());
-            if let Ok(chan) = start_sending_sniffed_opt(start_chan,
-                                                metadata,
-                                                classifier,
-                                                &bytes,
-                                                load_data.context) {
-                let _ = chan.send(Payload(bytes));
-                let _ = chan.send(Done(Ok(())));
-            }
-        },
-        Err(DecodeError::InvalidDataUri) =>
-            send_error(url, NetworkError::Internal("invalid data uri".to_owned()), start_chan),
-        Err(DecodeError::NonBase64DataUri) =>
-            send_error(url, NetworkError::Internal("non-base64 data uri".to_owned()), start_chan),
-    }
-}