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Integrate service worker manager thread
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39 changed files with 764 additions and 582 deletions
123
components/script/serviceworker_manager.rs
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123
components/script/serviceworker_manager.rs
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/* 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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//! The service worker manager persists the descriptor of any registered service workers.
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//! It also stores an active workers map, which holds descriptors of running service workers.
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//! If an active service worker timeouts, then it removes the descriptor entry from its
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//! active_workers map
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use devtools_traits::{DevtoolsPageInfo, ScriptToDevtoolsControlMsg};
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use dom::serviceworkerglobalscope::ServiceWorkerGlobalScope;
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use dom::serviceworkerregistration::longest_prefix_match;
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use ipc_channel::ipc::{self, IpcSender, IpcReceiver};
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use script_traits::{ServiceWorkerMsg, ScopeThings, SWManagerMsg};
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use std::collections::HashMap;
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use std::sync::mpsc::channel;
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use url::Url;
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use util::thread::spawn_named;
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pub struct ServiceWorkerManager {
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// map of registered service worker descriptors
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registered_workers: HashMap<Url, ScopeThings>,
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// map of active service worker descriptors
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active_workers: HashMap<Url, ScopeThings>,
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// own sender to send messages here
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own_sender: IpcSender<ServiceWorkerMsg>,
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// receiver to receive messages from constellation
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own_port: IpcReceiver<ServiceWorkerMsg>,
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}
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impl ServiceWorkerManager {
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fn new(own_sender: IpcSender<ServiceWorkerMsg>,
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from_constellation_receiver: IpcReceiver<ServiceWorkerMsg>) -> ServiceWorkerManager {
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ServiceWorkerManager {
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registered_workers: HashMap::new(),
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active_workers: HashMap::new(),
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own_sender: own_sender,
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own_port: from_constellation_receiver
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}
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}
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pub fn spawn_manager(from_swmanager_sender: IpcSender<SWManagerMsg>) {
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let (own_sender, from_constellation_receiver) = ipc::channel().unwrap();
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from_swmanager_sender.send(SWManagerMsg::OwnSender(own_sender.clone())).unwrap();
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spawn_named("ServiceWorkerManager".to_owned(), move || {
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ServiceWorkerManager::new(own_sender, from_constellation_receiver).start();
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});
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}
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pub fn prepare_activation(&mut self, load_url: &Url) {
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let mut scope_url = None;
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for scope in self.registered_workers.keys() {
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if longest_prefix_match(&scope, load_url) {
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scope_url = Some(scope.clone());
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break;
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}
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}
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if let Some(ref scope_url) = scope_url {
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if self.active_workers.contains_key(&scope_url) {
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// do not run the same worker if already active.
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warn!("Service worker for {:?} already active", scope_url);
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return;
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}
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let scope_things = self.registered_workers.get(&scope_url);
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if let Some(scope_things) = scope_things {
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let (sender, receiver) = channel();
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let (devtools_sender, devtools_receiver) = ipc::channel().unwrap();
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if let Some(ref chan) = scope_things.devtools_chan {
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let title = format!("ServiceWorker for {}", scope_things.script_url);
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let page_info = DevtoolsPageInfo {
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title: title,
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url: scope_things.script_url.clone(),
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};
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let _ = chan.send(ScriptToDevtoolsControlMsg::NewGlobal((scope_things.pipeline_id,
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Some(scope_things.worker_id)),
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devtools_sender.clone(),
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page_info));
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};
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ServiceWorkerGlobalScope::run_serviceworker_scope(scope_things.clone(),
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sender,
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receiver,
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devtools_receiver,
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self.own_sender.clone(),
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scope_url.clone());
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// store the worker in active_workers map
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self.active_workers.insert(scope_url.clone(), scope_things.clone());
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} else {
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warn!("Unable to activate service worker");
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}
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}
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}
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fn start(&mut self) {
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while let Ok(msg) = self.own_port.recv() {
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match msg {
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ServiceWorkerMsg::RegisterServiceWorker(scope_things, scope) => {
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if self.registered_workers.contains_key(&scope) {
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warn!("ScopeThings for {:?} already stored in SW-Manager", scope);
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} else {
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self.registered_workers.insert(scope, scope_things);
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}
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}
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ServiceWorkerMsg::Timeout(scope) => {
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if self.active_workers.contains_key(&scope) {
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let _ = self.active_workers.remove(&scope);
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} else {
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warn!("ScopeThings for {:?} is not active", scope);
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}
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}
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ServiceWorkerMsg::ActivateWorker(mediator) => {
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self.prepare_activation(&mediator.load_url);
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// TODO XXXcreativcoder this net_sender will need to be send to the appropriate service worker
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// so that it may do the sending of custom responses.
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// For now we just send a None from here itself
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let _ = mediator.response_chan.send(None);
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}
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ServiceWorkerMsg::Exit => break
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}
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}
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}
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}
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