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/* This Source Code Form is subject to the terms of the Mozilla Public
* 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 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::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
(url: ServoUrl,
filemanager: FileManager)
-> Result<(Headers, Vec<u8>), NetworkError> {
let (id, origin) = match parse_blob_url(&url) {
Ok((id, origin, _fragment)) => (id, origin),
Err(()) => {
let e = format!("Invalid blob URL format {:?}", url);
return Err(NetworkError::Internal(e));
}
};
let (sender, receiver) = ipc::channel().unwrap();
let check_url_validity = true;
filemanager.read_file(sender, id, check_url_validity, origin, None);
let blob_buf = match receiver.recv().unwrap() {
Ok(ReadFileProgress::Meta(blob_buf)) => blob_buf,
Ok(_) => {
return Err(NetworkError::Internal("Invalid filemanager reply".to_string()));
}
Err(e) => {
return Err(NetworkError::Internal(format!("{:?}", e)));
}
};
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())
]
});
}
// Basic fetch, Step 4.
headers.set(ContentLength(blob_buf.size as u64));
// Basic fetch, Step 5.
headers.set(ContentType(content_type.clone()));
let mut bytes = blob_buf.bytes;
loop {
match receiver.recv().unwrap() {
Ok(ReadFileProgress::Partial(ref mut new_bytes)) => {
bytes.append(new_bytes);
}
Ok(ReadFileProgress::EOF) => {
return Ok((headers, bytes));
}
Ok(_) => {
return Err(NetworkError::Internal("Invalid filemanager reply".to_string()));
}
Err(e) => {
return Err(NetworkError::Internal(format!("{:?}", e)));
}
}
}
}
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