mirror of
https://github.com/servo/servo.git
synced 2025-08-03 12:40:06 +01:00
Split devtools implementation into sensible modules.
This commit is contained in:
parent
cdb4037ca2
commit
bb9955c281
7 changed files with 699 additions and 555 deletions
120
components/devtools/actor.rs
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120
components/devtools/actor.rs
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@ -0,0 +1,120 @@
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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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/// General actor system infrastructure.
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use std::any::{Any, AnyRefExt, AnyMutRefExt};
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use std::collections::hashmap::HashMap;
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use std::io::TcpStream;
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use std::mem::{transmute, transmute_copy};
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use std::raw::TraitObject;
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use serialize::json;
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/// A common trait for all devtools actors that encompasses an immutable name
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/// and the ability to process messages that are directed to particular actors.
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/// TODO: ensure the name is immutable
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pub trait Actor: Any {
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fn handle_message(&self,
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registry: &ActorRegistry,
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msg_type: &String,
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msg: &json::Object,
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stream: &mut TcpStream) -> bool;
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fn name(&self) -> String;
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}
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impl<'a> AnyMutRefExt<'a> for &'a mut Actor {
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fn downcast_mut<T: 'static>(self) -> Option<&'a mut T> {
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if self.is::<T>() {
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unsafe {
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// Get the raw representation of the trait object
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let to: TraitObject = transmute_copy(&self);
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// Extract the data pointer
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Some(transmute(to.data))
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}
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} else {
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None
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}
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}
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}
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impl<'a> AnyRefExt<'a> for &'a Actor {
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fn is<T: 'static>(self) -> bool {
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//FIXME: This implementation is bogus since get_type_id is private now.
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// However, this implementation is only needed so long as there's a Rust bug
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// that prevents downcast_ref from giving realistic return values, and this is
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// ok since we're careful with the types we pull out of the hashmap.
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/*let t = TypeId::of::<T>();
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let boxed = self.get_type_id();
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t == boxed*/
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true
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}
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fn downcast_ref<T: 'static>(self) -> Option<&'a T> {
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if self.is::<T>() {
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unsafe {
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// Get the raw representation of the trait object
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let to: TraitObject = transmute_copy(&self);
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// Extract the data pointer
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Some(transmute(to.data))
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}
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} else {
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None
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}
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}
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}
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/// A list of known, owned actors.
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pub struct ActorRegistry {
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actors: HashMap<String, Box<Actor+Send+Sized>>,
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}
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impl ActorRegistry {
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/// Create an empty registry.
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pub fn new() -> ActorRegistry {
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ActorRegistry {
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actors: HashMap::new(),
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}
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}
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/// Add an actor to the registry of known actors that can receive messages.
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pub fn register(&mut self, actor: Box<Actor+Send+Sized>) {
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self.actors.insert(actor.name().to_string(), actor);
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}
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/// Find an actor by registered name
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pub fn find<'a, T: 'static>(&'a self, name: &str) -> &'a T {
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//FIXME: Rust bug forces us to implement bogus Any for Actor since downcast_ref currently
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// fails for unknown reasons.
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/*let actor: &Actor+Send+Sized = *self.actors.find(&name.to_string()).unwrap();
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(actor as &Any).downcast_ref::<T>().unwrap()*/
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self.actors.find(&name.to_string()).unwrap().as_ref::<T>().unwrap()
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}
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/// Find an actor by registered name
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pub fn find_mut<'a, T: 'static>(&'a mut self, name: &str) -> &'a mut T {
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//FIXME: Rust bug forces us to implement bogus Any for Actor since downcast_ref currently
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// fails for unknown reasons.
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/*let actor: &mut Actor+Send+Sized = *self.actors.find_mut(&name.to_string()).unwrap();
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(actor as &mut Any).downcast_mut::<T>().unwrap()*/
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self.actors.find_mut(&name.to_string()).unwrap().downcast_mut::<T>().unwrap()
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}
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/// Attempt to process a message as directed by its `to` property. If the actor is not
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/// found or does not indicate that it knew how to process the message, ignore the failure.
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pub fn handle_message(&self, msg: &json::Object, stream: &mut TcpStream) {
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let to = msg.find(&"to".to_string()).unwrap().as_string().unwrap();
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match self.actors.find(&to.to_string()) {
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None => println!("message received for unknown actor \"{:s}\"", to),
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Some(actor) => {
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let msg_type = msg.find(&"type".to_string()).unwrap().as_string().unwrap();
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if !actor.handle_message(self, &msg_type.to_string(), msg, stream) {
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println!("unexpected message type \"{:s}\" found for actor \"{:s}\"",
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msg_type, to);
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}
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}
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}
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}
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}
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284
components/devtools/actors/console.rs
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284
components/devtools/actors/console.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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/// Liberally derived from the [Firefox JS implementation](http://mxr.mozilla.org/mozilla-central/source/toolkit/devtools/server/actors/webconsole.js).
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/// Mediates interaction between the remote web console and equivalent functionality (object
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/// inspection, JS evaluation, autocompletion) in Servo.
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use actor::{Actor, ActorRegistry};
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use protocol::JsonPacketSender;
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use devtools_traits::{EvaluateJS, NullValue, VoidValue, NumberValue, StringValue, BooleanValue};
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use devtools_traits::{ActorValue, DevtoolScriptControlMsg};
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use servo_msg::constellation_msg::PipelineId;
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use collections::TreeMap;
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use serialize::json;
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use serialize::json::ToJson;
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use std::io::TcpStream;
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#[deriving(Encodable)]
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struct StartedListenersTraits {
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customNetworkRequest: bool,
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}
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#[deriving(Encodable)]
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struct StartedListenersReply {
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from: String,
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nativeConsoleAPI: bool,
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startedListeners: Vec<String>,
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traits: StartedListenersTraits,
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}
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#[deriving(Encodable)]
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struct ConsoleAPIMessage {
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_type: String, //FIXME: should this be __type__ instead?
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}
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#[deriving(Encodable)]
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struct PageErrorMessage {
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_type: String, //FIXME: should this be __type__ instead?
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errorMessage: String,
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sourceName: String,
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lineText: String,
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lineNumber: uint,
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columnNumber: uint,
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category: String,
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timeStamp: uint,
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warning: bool,
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error: bool,
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exception: bool,
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strict: bool,
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private: bool,
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}
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#[deriving(Encodable)]
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struct LogMessage {
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_type: String, //FIXME: should this be __type__ instead?
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timeStamp: uint,
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message: String,
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}
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#[deriving(Encodable)]
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enum ConsoleMessageType {
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ConsoleAPIType(ConsoleAPIMessage),
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PageErrorType(PageErrorMessage),
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LogMessageType(LogMessage),
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}
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#[deriving(Encodable)]
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struct GetCachedMessagesReply {
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from: String,
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messages: Vec<json::Object>,
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}
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#[deriving(Encodable)]
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struct StopListenersReply {
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from: String,
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stoppedListeners: Vec<String>,
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}
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#[deriving(Encodable)]
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struct AutocompleteReply {
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from: String,
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matches: Vec<String>,
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matchProp: String,
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}
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#[deriving(Encodable)]
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struct EvaluateJSReply {
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from: String,
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input: String,
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result: json::Json,
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timestamp: uint,
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exception: json::Json,
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exceptionMessage: String,
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helperResult: json::Json,
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}
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pub struct ConsoleActor {
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pub name: String,
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pub pipeline: PipelineId,
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pub script_chan: Sender<DevtoolScriptControlMsg>,
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}
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impl Actor for ConsoleActor {
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fn name(&self) -> String {
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self.name.clone()
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}
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fn handle_message(&self,
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_registry: &ActorRegistry,
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msg_type: &String,
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msg: &json::Object,
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stream: &mut TcpStream) -> bool {
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match msg_type.as_slice() {
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"getCachedMessages" => {
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let types = msg.find(&"messageTypes".to_string()).unwrap().as_list().unwrap();
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let /*mut*/ messages = vec!();
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for msg_type in types.iter() {
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let msg_type = msg_type.as_string().unwrap();
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match msg_type.as_slice() {
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"ConsoleAPI" => {
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//TODO: figure out all consoleapi properties from FFOX source
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}
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"PageError" => {
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//TODO: make script error reporter pass all reported errors
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// to devtools and cache them for returning here.
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/*let message = PageErrorMessage {
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_type: msg_type.to_string(),
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sourceName: "".to_string(),
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lineText: "".to_string(),
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lineNumber: 0,
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columnNumber: 0,
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category: "".to_string(),
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warning: false,
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error: true,
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exception: false,
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strict: false,
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private: false,
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timeStamp: 0,
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errorMessage: "page error test".to_string(),
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};
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messages.push(json::from_str(json::encode(&message).as_slice()).unwrap().as_object().unwrap().clone());*/
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}
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"LogMessage" => {
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//TODO: figure out when LogMessage is necessary
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/*let message = LogMessage {
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_type: msg_type.to_string(),
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timeStamp: 0,
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message: "log message test".to_string(),
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};
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messages.push(json::from_str(json::encode(&message).as_slice()).unwrap().as_object().unwrap().clone());*/
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}
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s => println!("unrecognized message type requested: \"{:s}\"", s),
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}
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}
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let msg = GetCachedMessagesReply {
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from: self.name(),
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messages: messages,
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};
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stream.write_json_packet(&msg);
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true
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}
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"startListeners" => {
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//TODO: actually implement listener filters that support starting/stopping
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let msg = StartedListenersReply {
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from: self.name(),
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nativeConsoleAPI: true,
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startedListeners:
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vec!("PageError".to_string(), "ConsoleAPI".to_string()),
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traits: StartedListenersTraits {
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customNetworkRequest: true,
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}
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};
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stream.write_json_packet(&msg);
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true
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}
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"stopListeners" => {
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//TODO: actually implement listener filters that support starting/stopping
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let msg = StopListenersReply {
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from: self.name(),
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stoppedListeners: msg.find(&"listeners".to_string())
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.unwrap()
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.as_list()
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.unwrap_or(&vec!())
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.iter()
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.map(|listener| listener.as_string().unwrap().to_string())
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.collect(),
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};
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stream.write_json_packet(&msg);
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true
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}
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//TODO: implement autocompletion like onAutocomplete in
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// http://mxr.mozilla.org/mozilla-central/source/toolkit/devtools/server/actors/webconsole.js
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"autocomplete" => {
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let msg = AutocompleteReply {
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from: self.name(),
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matches: vec!(),
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matchProp: "".to_string(),
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};
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stream.write_json_packet(&msg);
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true
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}
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"evaluateJS" => {
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let input = msg.find(&"text".to_string()).unwrap().as_string().unwrap().to_string();
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let (chan, port) = channel();
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self.script_chan.send(EvaluateJS(self.pipeline, input.clone(), chan));
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//TODO: extract conversion into protocol module or some other useful place
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let result = match port.recv() {
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VoidValue => {
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let mut m = TreeMap::new();
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m.insert("type".to_string(), "undefined".to_string().to_json());
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json::Object(m)
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}
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NullValue => {
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let mut m = TreeMap::new();
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m.insert("type".to_string(), "null".to_string().to_json());
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json::Object(m)
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}
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BooleanValue(val) => val.to_json(),
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NumberValue(val) => {
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if val.is_nan() {
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let mut m = TreeMap::new();
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m.insert("type".to_string(), "NaN".to_string().to_json());
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json::Object(m)
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} else if val.is_infinite() {
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let mut m = TreeMap::new();
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if val < 0. {
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m.insert("type".to_string(), "Infinity".to_string().to_json());
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} else {
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m.insert("type".to_string(), "-Infinity".to_string().to_json());
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}
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json::Object(m)
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} else if val == Float::neg_zero() {
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let mut m = TreeMap::new();
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m.insert("type".to_string(), "-0".to_string().to_json());
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json::Object(m)
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} else {
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val.to_json()
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}
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}
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StringValue(s) => s.to_json(),
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ActorValue(s) => {
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//TODO: make initial ActorValue message include these properties.
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let mut m = TreeMap::new();
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m.insert("type".to_string(), "object".to_string().to_json());
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m.insert("class".to_string(), "???".to_string().to_json());
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m.insert("actor".to_string(), s.to_json());
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m.insert("extensible".to_string(), true.to_json());
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m.insert("frozen".to_string(), false.to_json());
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m.insert("sealed".to_string(), false.to_json());
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json::Object(m)
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}
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};
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//TODO: catch and return exception values from JS evaluation
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let msg = EvaluateJSReply {
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from: self.name(),
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input: input,
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result: result,
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timestamp: 0,
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exception: json::Object(TreeMap::new()),
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exceptionMessage: "".to_string(),
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helperResult: json::Object(TreeMap::new()),
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};
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stream.write_json_packet(&msg);
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true
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}
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_ => false
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}
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}
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}
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96
components/devtools/actors/root.rs
Normal file
96
components/devtools/actors/root.rs
Normal file
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@ -0,0 +1,96 @@
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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
|
||||
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
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|
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/// Liberally derived from the [Firefox JS implementation](http://mxr.mozilla.org/mozilla-central/source/toolkit/devtools/server/actors/root.js).
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/// Connection point for all new remote devtools interactions, providing lists of know actors
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/// that perform more specific actions (tabs, addons, browser chrome, etc.)
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use actor::{Actor, ActorRegistry};
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use actors::tab::{TabActor, TabActorMsg};
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use protocol::JsonPacketSender;
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use serialize::json;
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use std::io::TcpStream;
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#[deriving(Encodable)]
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struct ActorTraits {
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sources: bool
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}
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#[deriving(Encodable)]
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struct ErrorReply {
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from: String,
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error: String,
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message: String,
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}
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#[deriving(Encodable)]
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struct ListTabsReply {
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from: String,
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selected: uint,
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tabs: Vec<TabActorMsg>,
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}
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#[deriving(Encodable)]
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struct RootActorMsg {
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from: String,
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applicationType: String,
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traits: ActorTraits,
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}
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pub struct RootActor {
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pub next: u32,
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pub tabs: Vec<String>,
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}
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impl Actor for RootActor {
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fn name(&self) -> String {
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"root".to_string()
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}
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|
||||
fn handle_message(&self,
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registry: &ActorRegistry,
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msg_type: &String,
|
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_msg: &json::Object,
|
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stream: &mut TcpStream) -> bool {
|
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match msg_type.as_slice() {
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"listAddons" => {
|
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let actor = ErrorReply {
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from: "root".to_string(),
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error: "noAddons".to_string(),
|
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message: "This root actor has no browser addons.".to_string(),
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};
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stream.write_json_packet(&actor);
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true
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}
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|
||||
//https://wiki.mozilla.org/Remote_Debugging_Protocol#Listing_Browser_Tabs
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"listTabs" => {
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let actor = ListTabsReply {
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from: "root".to_string(),
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||||
selected: 0,
|
||||
tabs: self.tabs.iter().map(|tab| {
|
||||
registry.find::<TabActor>(tab.as_slice()).encodable()
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}).collect()
|
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};
|
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stream.write_json_packet(&actor);
|
||||
true
|
||||
}
|
||||
|
||||
_ => false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl RootActor {
|
||||
pub fn encodable(&self) -> RootActorMsg {
|
||||
RootActorMsg {
|
||||
from: "root".to_string(),
|
||||
applicationType: "browser".to_string(),
|
||||
traits: ActorTraits {
|
||||
sources: true,
|
||||
},
|
||||
}
|
||||
}
|
||||
}
|
108
components/devtools/actors/tab.rs
Normal file
108
components/devtools/actors/tab.rs
Normal file
|
@ -0,0 +1,108 @@
|
|||
/* 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/. */
|
||||
|
||||
/// Liberally derived from the [Firefox JS implementation](http://mxr.mozilla.org/mozilla-central/source/toolkit/devtools/server/actors/webbrowser.js).
|
||||
/// Connection point for remote devtools that wish to investigate a particular tab's contents.
|
||||
/// Supports dynamic attaching and detaching which control notifications of navigation, etc.
|
||||
|
||||
use actor::{Actor, ActorRegistry};
|
||||
use protocol::JsonPacketSender;
|
||||
|
||||
use serialize::json;
|
||||
use std::io::TcpStream;
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct TabTraits;
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct TabAttachedReply {
|
||||
from: String,
|
||||
__type__: String,
|
||||
threadActor: String,
|
||||
cacheDisabled: bool,
|
||||
javascriptEnabled: bool,
|
||||
traits: TabTraits,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct TabDetachedReply {
|
||||
from: String,
|
||||
__type__: String,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct ReconfigureReply {
|
||||
from: String
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
pub struct TabActorMsg {
|
||||
actor: String,
|
||||
title: String,
|
||||
url: String,
|
||||
outerWindowID: uint,
|
||||
consoleActor: String,
|
||||
}
|
||||
|
||||
pub struct TabActor {
|
||||
pub name: String,
|
||||
pub title: String,
|
||||
pub url: String,
|
||||
}
|
||||
|
||||
impl Actor for TabActor {
|
||||
fn name(&self) -> String {
|
||||
self.name.clone()
|
||||
}
|
||||
|
||||
fn handle_message(&self,
|
||||
_registry: &ActorRegistry,
|
||||
msg_type: &String,
|
||||
_msg: &json::Object,
|
||||
stream: &mut TcpStream) -> bool {
|
||||
match msg_type.as_slice() {
|
||||
"reconfigure" => {
|
||||
stream.write_json_packet(&ReconfigureReply { from: self.name() });
|
||||
true
|
||||
}
|
||||
|
||||
// https://wiki.mozilla.org/Remote_Debugging_Protocol#Listing_Browser_Tabs
|
||||
// (see "To attach to a _tabActor_")
|
||||
"attach" => {
|
||||
let msg = TabAttachedReply {
|
||||
from: self.name(),
|
||||
__type__: "tabAttached".to_string(),
|
||||
threadActor: self.name(),
|
||||
cacheDisabled: false,
|
||||
javascriptEnabled: true,
|
||||
traits: TabTraits,
|
||||
};
|
||||
stream.write_json_packet(&msg);
|
||||
true
|
||||
}
|
||||
|
||||
"detach" => {
|
||||
let msg = TabDetachedReply {
|
||||
from: self.name(),
|
||||
__type__: "detached".to_string(),
|
||||
};
|
||||
stream.write_json_packet(&msg);
|
||||
true
|
||||
}
|
||||
_ => false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl TabActor {
|
||||
pub fn encodable(&self) -> TabActorMsg {
|
||||
TabActorMsg {
|
||||
actor: self.name(),
|
||||
title: self.title.clone(),
|
||||
url: self.url.clone(),
|
||||
outerWindowID: 0, //FIXME: this should probably be the pipeline id
|
||||
consoleActor: "console0".to_string(), //FIXME: this should be the actual actor name
|
||||
}
|
||||
}
|
||||
}
|
|
@ -14,6 +14,10 @@
|
|||
#[phase(plugin, link)]
|
||||
extern crate log;
|
||||
|
||||
/// An actor-based remote devtools server implementation. Only tested with nightly Firefox
|
||||
/// versions at time of writing. Largely based on reverse-engineering of Firefox chrome
|
||||
/// devtool logs and reading of [code](http://mxr.mozilla.org/mozilla-central/source/toolkit/devtools/server/).
|
||||
|
||||
extern crate collections;
|
||||
extern crate core;
|
||||
extern crate devtools_traits;
|
||||
|
@ -23,552 +27,35 @@ extern crate serialize;
|
|||
extern crate sync;
|
||||
extern crate servo_msg = "msg";
|
||||
|
||||
use actor::ActorRegistry;
|
||||
use actors::console::ConsoleActor;
|
||||
use actors::root::RootActor;
|
||||
use actors::tab::TabActor;
|
||||
use protocol::JsonPacketSender;
|
||||
|
||||
use devtools_traits::{ServerExitMsg, DevtoolsControlMsg, NewGlobal, DevtoolScriptControlMsg};
|
||||
use devtools_traits::{EvaluateJS, NullValue, VoidValue, NumberValue, StringValue, BooleanValue};
|
||||
use devtools_traits::ActorValue;
|
||||
use servo_msg::constellation_msg::PipelineId;
|
||||
|
||||
use collections::TreeMap;
|
||||
use std::any::{Any, AnyRefExt, AnyMutRefExt};
|
||||
use std::collections::hashmap::HashMap;
|
||||
use std::comm;
|
||||
use std::comm::{Disconnected, Empty};
|
||||
use std::io::{TcpListener, TcpStream};
|
||||
use std::io::{Acceptor, Listener, EndOfFile, IoError, TimedOut};
|
||||
use std::mem::{transmute, transmute_copy};
|
||||
use std::io::{Acceptor, Listener, EndOfFile, TimedOut};
|
||||
use std::num;
|
||||
use std::raw::TraitObject;
|
||||
use std::task::TaskBuilder;
|
||||
use serialize::{json, Encodable};
|
||||
use serialize::json::ToJson;
|
||||
use serialize::json;
|
||||
use sync::{Arc, Mutex};
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct ActorTraits {
|
||||
sources: bool
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct RootActorMsg {
|
||||
from: String,
|
||||
applicationType: String,
|
||||
traits: ActorTraits,
|
||||
}
|
||||
|
||||
struct RootActor {
|
||||
next: u32,
|
||||
tabs: Vec<String>,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct ErrorReply {
|
||||
from: String,
|
||||
error: String,
|
||||
message: String,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct TabActorMsg {
|
||||
actor: String,
|
||||
title: String,
|
||||
url: String,
|
||||
outerWindowID: uint,
|
||||
consoleActor: String,
|
||||
}
|
||||
|
||||
struct TabActor {
|
||||
name: String,
|
||||
title: String,
|
||||
url: String,
|
||||
}
|
||||
|
||||
struct ConsoleActor {
|
||||
name: String,
|
||||
pipeline: PipelineId,
|
||||
script_chan: Sender<DevtoolScriptControlMsg>,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct ListTabsReply {
|
||||
from: String,
|
||||
selected: uint,
|
||||
tabs: Vec<TabActorMsg>,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct TabTraits;
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct TabAttachedReply {
|
||||
from: String,
|
||||
__type__: String,
|
||||
threadActor: String,
|
||||
cacheDisabled: bool,
|
||||
javascriptEnabled: bool,
|
||||
traits: TabTraits,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct TabDetachedReply {
|
||||
from: String,
|
||||
__type__: String,
|
||||
}
|
||||
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct StartedListenersTraits {
|
||||
customNetworkRequest: bool,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct StartedListenersReply {
|
||||
from: String,
|
||||
nativeConsoleAPI: bool,
|
||||
startedListeners: Vec<String>,
|
||||
traits: StartedListenersTraits,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct ConsoleAPIMessage {
|
||||
_type: String,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct PageErrorMessage {
|
||||
_type: String,
|
||||
errorMessage: String,
|
||||
sourceName: String,
|
||||
lineText: String,
|
||||
lineNumber: uint,
|
||||
columnNumber: uint,
|
||||
category: String,
|
||||
timeStamp: uint,
|
||||
warning: bool,
|
||||
error: bool,
|
||||
exception: bool,
|
||||
strict: bool,
|
||||
private: bool,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct LogMessage {
|
||||
_type: String,
|
||||
timeStamp: uint,
|
||||
message: String,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
enum ConsoleMessageType {
|
||||
ConsoleAPIType(ConsoleAPIMessage),
|
||||
PageErrorType(PageErrorMessage),
|
||||
LogMessageType(LogMessage),
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct GetCachedMessagesReply {
|
||||
from: String,
|
||||
messages: Vec<json::Object>,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct StopListenersReply {
|
||||
from: String,
|
||||
stoppedListeners: Vec<String>,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct AutocompleteReply {
|
||||
from: String,
|
||||
matches: Vec<String>,
|
||||
matchProp: String,
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct EvaluateJSReply {
|
||||
from: String,
|
||||
input: String,
|
||||
result: json::Json,
|
||||
timestamp: uint,
|
||||
exception: json::Json,
|
||||
exceptionMessage: String,
|
||||
helperResult: json::Json,
|
||||
}
|
||||
|
||||
struct ActorRegistry {
|
||||
actors: HashMap<String, Box<Actor+Send+Sized>>,
|
||||
}
|
||||
|
||||
impl ActorRegistry {
|
||||
fn new() -> ActorRegistry {
|
||||
ActorRegistry {
|
||||
actors: HashMap::new(),
|
||||
}
|
||||
}
|
||||
|
||||
fn register<T: 'static>(&mut self, actor: Box<Actor+Send+Sized>) {
|
||||
/*{
|
||||
let actor2: &Actor+Send+Sized = actor;
|
||||
assert!((actor2 as &Any).is::<T>());
|
||||
};*/
|
||||
self.actors.insert(actor.name().to_string(), actor);
|
||||
}
|
||||
|
||||
fn find<'a, T: 'static>(&'a self, name: &str) -> &'a T {
|
||||
/*let actor: &Actor+Send+Sized = *self.actors.find(&name.to_string()).unwrap();
|
||||
(actor as &Any).downcast_ref::<T>().unwrap()*/
|
||||
self.actors.find(&name.to_string()).unwrap().as_ref::<T>().unwrap()
|
||||
}
|
||||
|
||||
fn find_mut<'a, T: 'static>(&'a mut self, name: &str) -> &'a mut T {
|
||||
/*let actor: &mut Actor+Send+Sized = *self.actors.find_mut(&name.to_string()).unwrap();
|
||||
(actor as &mut Any).downcast_mut::<T>().unwrap()*/
|
||||
self.actors.find_mut(&name.to_string()).unwrap().downcast_mut::<T>().unwrap()
|
||||
}
|
||||
|
||||
fn handle_message(&self, msg: &json::Object, stream: &mut TcpStream) {
|
||||
let to = msg.find(&"to".to_string()).unwrap().as_string().unwrap();
|
||||
match self.actors.find(&to.to_string()) {
|
||||
None => println!("message received for unknown actor \"{:s}\"", to),
|
||||
Some(actor) => {
|
||||
let msg_type = msg.find(&"type".to_string()).unwrap()
|
||||
.as_string().unwrap();
|
||||
if !actor.handle_message(self, &msg_type.to_string(), msg, stream) {
|
||||
println!("unexpected message type \"{:s}\" found for actor \"{:s}\"",
|
||||
msg_type, to);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
trait Actor: Any {
|
||||
fn handle_message(&self,
|
||||
registry: &ActorRegistry,
|
||||
msg_type: &String,
|
||||
msg: &json::Object,
|
||||
stream: &mut TcpStream) -> bool;
|
||||
fn name(&self) -> String;
|
||||
}
|
||||
|
||||
impl<'a> AnyMutRefExt<'a> for &'a mut Actor {
|
||||
fn downcast_mut<T: 'static>(self) -> Option<&'a mut T> {
|
||||
if self.is::<T>() {
|
||||
unsafe {
|
||||
// Get the raw representation of the trait object
|
||||
let to: TraitObject = transmute_copy(&self);
|
||||
|
||||
// Extract the data pointer
|
||||
Some(transmute(to.data))
|
||||
}
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> AnyRefExt<'a> for &'a Actor {
|
||||
fn is<T: 'static>(self) -> bool {
|
||||
/*let t = TypeId::of::<T>();
|
||||
let boxed = self.get_type_id();
|
||||
t == boxed*/
|
||||
true
|
||||
}
|
||||
|
||||
fn downcast_ref<T: 'static>(self) -> Option<&'a T> {
|
||||
if self.is::<T>() {
|
||||
unsafe {
|
||||
// Get the raw representation of the trait object
|
||||
let to: TraitObject = transmute_copy(&self);
|
||||
|
||||
// Extract the data pointer
|
||||
Some(transmute(to.data))
|
||||
}
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Actor for RootActor {
|
||||
fn name(&self) -> String {
|
||||
"root".to_string()
|
||||
}
|
||||
|
||||
fn handle_message(&self,
|
||||
registry: &ActorRegistry,
|
||||
msg_type: &String,
|
||||
_msg: &json::Object,
|
||||
stream: &mut TcpStream) -> bool {
|
||||
match msg_type.as_slice() {
|
||||
"listAddons" => {
|
||||
let actor = ErrorReply {
|
||||
from: "root".to_string(),
|
||||
error: "noAddons".to_string(),
|
||||
message: "This root actor has no browser addons.".to_string(),
|
||||
};
|
||||
stream.write_json_packet(&actor);
|
||||
true
|
||||
}
|
||||
"listTabs" => {
|
||||
let actor = ListTabsReply {
|
||||
from: "root".to_string(),
|
||||
selected: 0,
|
||||
tabs: self.tabs.iter().map(|tab| {
|
||||
registry.find::<TabActor>(tab.as_slice()).encodable()
|
||||
}).collect()
|
||||
};
|
||||
stream.write_json_packet(&actor);
|
||||
true
|
||||
}
|
||||
_ => false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl RootActor {
|
||||
fn encodable(&self) -> RootActorMsg {
|
||||
RootActorMsg {
|
||||
from: "root".to_string(),
|
||||
applicationType: "browser".to_string(),
|
||||
traits: ActorTraits {
|
||||
sources: true,
|
||||
},
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[deriving(Encodable)]
|
||||
struct ReconfigureReply {
|
||||
from: String
|
||||
}
|
||||
|
||||
impl Actor for TabActor {
|
||||
fn name(&self) -> String {
|
||||
self.name.clone()
|
||||
}
|
||||
|
||||
fn handle_message(&self,
|
||||
_registry: &ActorRegistry,
|
||||
msg_type: &String,
|
||||
_msg: &json::Object,
|
||||
stream: &mut TcpStream) -> bool {
|
||||
match msg_type.as_slice() {
|
||||
"reconfigure" => {
|
||||
stream.write_json_packet(&ReconfigureReply { from: self.name() });
|
||||
true
|
||||
}
|
||||
"attach" => {
|
||||
let msg = TabAttachedReply {
|
||||
from: self.name(),
|
||||
__type__: "tabAttached".to_string(),
|
||||
threadActor: self.name(),
|
||||
cacheDisabled: false,
|
||||
javascriptEnabled: true,
|
||||
traits: TabTraits,
|
||||
};
|
||||
stream.write_json_packet(&msg);
|
||||
true
|
||||
}
|
||||
"detach" => {
|
||||
let msg = TabDetachedReply {
|
||||
from: self.name(),
|
||||
__type__: "detached".to_string(),
|
||||
};
|
||||
stream.write_json_packet(&msg);
|
||||
true
|
||||
}
|
||||
_ => false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl TabActor {
|
||||
fn encodable(&self) -> TabActorMsg {
|
||||
TabActorMsg {
|
||||
actor: self.name(),
|
||||
title: self.title.clone(),
|
||||
url: self.url.clone(),
|
||||
outerWindowID: 0,
|
||||
consoleActor: "console0".to_string(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Actor for ConsoleActor {
|
||||
fn name(&self) -> String {
|
||||
self.name.clone()
|
||||
}
|
||||
|
||||
fn handle_message(&self,
|
||||
_registry: &ActorRegistry,
|
||||
msg_type: &String,
|
||||
msg: &json::Object,
|
||||
stream: &mut TcpStream) -> bool {
|
||||
match msg_type.as_slice() {
|
||||
"getCachedMessages" => {
|
||||
let types = msg.find(&"messageTypes".to_string()).unwrap().as_list().unwrap();
|
||||
let mut messages = vec!();
|
||||
for msg_type in types.iter() {
|
||||
let msg_type = msg_type.as_string().unwrap();
|
||||
match msg_type.as_slice() {
|
||||
"ConsoleAPI" => {
|
||||
//XXX need more info about consoleapi properties
|
||||
}
|
||||
"PageError" => {
|
||||
let message = PageErrorMessage {
|
||||
_type: msg_type.to_string(),
|
||||
sourceName: "".to_string(),
|
||||
lineText: "".to_string(),
|
||||
lineNumber: 0,
|
||||
columnNumber: 0,
|
||||
category: "".to_string(),
|
||||
warning: false,
|
||||
error: true,
|
||||
exception: false,
|
||||
strict: false,
|
||||
private: false,
|
||||
timeStamp: 0,
|
||||
errorMessage: "page error test".to_string(),
|
||||
};
|
||||
messages.push(json::from_str(json::encode(&message).as_slice()).unwrap().as_object().unwrap().clone());
|
||||
}
|
||||
"LogMessage" => {
|
||||
let message = LogMessage {
|
||||
_type: msg_type.to_string(),
|
||||
timeStamp: 0,
|
||||
message: "log message test".to_string(),
|
||||
};
|
||||
messages.push(json::from_str(json::encode(&message).as_slice()).unwrap().as_object().unwrap().clone());
|
||||
}
|
||||
s => println!("unrecognized message type requested: \"{:s}\"", s),
|
||||
}
|
||||
}
|
||||
let msg = GetCachedMessagesReply {
|
||||
from: self.name(),
|
||||
messages: messages,
|
||||
};
|
||||
stream.write_json_packet(&msg);
|
||||
true
|
||||
}
|
||||
"startListeners" => {
|
||||
let msg = StartedListenersReply {
|
||||
from: self.name(),
|
||||
nativeConsoleAPI: true,
|
||||
startedListeners:
|
||||
vec!("PageError".to_string(), "ConsoleAPI".to_string(),
|
||||
"NetworkActivity".to_string(), "FileActivity".to_string()),
|
||||
traits: StartedListenersTraits {
|
||||
customNetworkRequest: true,
|
||||
}
|
||||
};
|
||||
stream.write_json_packet(&msg);
|
||||
true
|
||||
}
|
||||
"stopListeners" => {
|
||||
let msg = StopListenersReply {
|
||||
from: self.name(),
|
||||
stoppedListeners: msg.find(&"listeners".to_string())
|
||||
.unwrap()
|
||||
.as_list()
|
||||
.unwrap_or(&vec!())
|
||||
.iter()
|
||||
.map(|listener| listener.as_string().unwrap().to_string())
|
||||
.collect(),
|
||||
};
|
||||
stream.write_json_packet(&msg);
|
||||
true
|
||||
}
|
||||
"autocomplete" => {
|
||||
let msg = AutocompleteReply {
|
||||
from: self.name(),
|
||||
matches: vec!(),
|
||||
matchProp: "".to_string(),
|
||||
};
|
||||
stream.write_json_packet(&msg);
|
||||
true
|
||||
}
|
||||
"evaluateJS" => {
|
||||
let input = msg.find(&"text".to_string()).unwrap().as_string().unwrap().to_string();
|
||||
let (chan, port) = channel();
|
||||
self.script_chan.send(EvaluateJS(self.pipeline, input.clone(), chan));
|
||||
|
||||
let result = match port.recv() {
|
||||
VoidValue => {
|
||||
let mut m = TreeMap::new();
|
||||
m.insert("type".to_string(), "undefined".to_string().to_json());
|
||||
json::Object(m)
|
||||
}
|
||||
NullValue => {
|
||||
let mut m = TreeMap::new();
|
||||
m.insert("type".to_string(), "null".to_string().to_json());
|
||||
json::Object(m)
|
||||
}
|
||||
BooleanValue(val) => val.to_json(),
|
||||
NumberValue(val) => {
|
||||
if val.is_nan() {
|
||||
let mut m = TreeMap::new();
|
||||
m.insert("type".to_string(), "NaN".to_string().to_json());
|
||||
json::Object(m)
|
||||
} else if val.is_infinite() {
|
||||
let mut m = TreeMap::new();
|
||||
if val < 0. {
|
||||
m.insert("type".to_string(), "Infinity".to_string().to_json());
|
||||
} else {
|
||||
m.insert("type".to_string(), "-Infinity".to_string().to_json());
|
||||
}
|
||||
json::Object(m)
|
||||
} else if val == Float::neg_zero() {
|
||||
let mut m = TreeMap::new();
|
||||
m.insert("type".to_string(), "-0".to_string().to_json());
|
||||
json::Object(m)
|
||||
} else {
|
||||
val.to_json()
|
||||
}
|
||||
}
|
||||
StringValue(s) => s.to_json(),
|
||||
ActorValue(s) => {
|
||||
let mut m = TreeMap::new();
|
||||
m.insert("type".to_string(), "object".to_string().to_json());
|
||||
m.insert("class".to_string(), "???".to_string().to_json());
|
||||
m.insert("actor".to_string(), s.to_json());
|
||||
m.insert("extensible".to_string(), true.to_json());
|
||||
m.insert("frozen".to_string(), false.to_json());
|
||||
m.insert("sealed".to_string(), false.to_json());
|
||||
json::Object(m)
|
||||
}
|
||||
};
|
||||
|
||||
let msg = EvaluateJSReply {
|
||||
from: self.name(),
|
||||
input: input,
|
||||
result: result,
|
||||
timestamp: 0,
|
||||
exception: json::Object(TreeMap::new()),
|
||||
exceptionMessage: "".to_string(),
|
||||
helperResult: json::Object(TreeMap::new()),
|
||||
};
|
||||
stream.write_json_packet(&msg);
|
||||
true
|
||||
}
|
||||
_ => false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
trait JsonPacketSender {
|
||||
fn write_json_packet<'a, T: Encodable<json::Encoder<'a>,IoError>>(&mut self, obj: &T);
|
||||
}
|
||||
|
||||
impl JsonPacketSender for TcpStream {
|
||||
fn write_json_packet<'a, T: Encodable<json::Encoder<'a>,IoError>>(&mut self, obj: &T) {
|
||||
let s = json::encode(obj).replace("__type__", "type");
|
||||
println!("<- {:s}", s);
|
||||
self.write_str(s.len().to_string().as_slice()).unwrap();
|
||||
self.write_u8(':' as u8).unwrap();
|
||||
self.write_str(s.as_slice()).unwrap();
|
||||
}
|
||||
mod actor;
|
||||
/// Corresponds to http://mxr.mozilla.org/mozilla-central/source/toolkit/devtools/server/actors/
|
||||
mod actors {
|
||||
pub mod console;
|
||||
pub mod tab;
|
||||
pub mod root;
|
||||
}
|
||||
mod protocol;
|
||||
|
||||
/// Spin up a devtools server that listens for connections. Defaults to port 6000.
|
||||
/// TODO: allow specifying a port
|
||||
pub fn start_server() -> Sender<DevtoolsControlMsg> {
|
||||
let (chan, port) = comm::channel();
|
||||
TaskBuilder::new().named("devtools").spawn(proc() {
|
||||
|
@ -593,11 +80,12 @@ fn run_server(port: Receiver<DevtoolsControlMsg>) {
|
|||
tabs: vec!(),
|
||||
};
|
||||
|
||||
registry.register::<RootActor>(root);
|
||||
registry.register(root);
|
||||
registry.find::<RootActor>("root");
|
||||
|
||||
let actors = Arc::new(Mutex::new(registry));
|
||||
|
||||
/// Process the input from a single devtools client until EOF.
|
||||
fn handle_client(actors: Arc<Mutex<ActorRegistry>>, mut stream: TcpStream) {
|
||||
println!("connection established to {:?}", stream.peer_name().unwrap());
|
||||
|
||||
|
@ -607,6 +95,9 @@ fn run_server(port: Receiver<DevtoolsControlMsg>) {
|
|||
stream.write_json_packet(&msg);
|
||||
}
|
||||
|
||||
// https://wiki.mozilla.org/Remote_Debugging_Protocol_Stream_Transport
|
||||
// In short, each JSON packet is [ascii length]:[JSON data of given length]
|
||||
// TODO: this really belongs in the protocol module.
|
||||
'outer: loop {
|
||||
let mut buffer = vec!();
|
||||
loop {
|
||||
|
@ -637,34 +128,45 @@ fn run_server(port: Receiver<DevtoolsControlMsg>) {
|
|||
}
|
||||
}
|
||||
|
||||
// We need separate actor representations for each script global that exists;
|
||||
// clients can theoretically connect to multiple globals simultaneously.
|
||||
// TODO: move this into the root or tab modules?
|
||||
fn handle_new_global(actors: Arc<Mutex<ActorRegistry>>,
|
||||
pipeline: PipelineId,
|
||||
sender: Sender<DevtoolScriptControlMsg>) {
|
||||
{
|
||||
let mut actors = actors.lock();
|
||||
let mut actors = actors.lock();
|
||||
|
||||
let (tab, console) = {
|
||||
let root = actors.find_mut::<RootActor>("root");
|
||||
let (tab, console) = {
|
||||
let root = actors.find_mut::<RootActor>("root");
|
||||
|
||||
let tab = TabActor {
|
||||
name: format!("tab{}", root.next),
|
||||
title: "".to_string(),
|
||||
url: "about:blank".to_string(),
|
||||
};
|
||||
let console = ConsoleActor {
|
||||
name: format!("console{}", root.next),
|
||||
script_chan: sender,
|
||||
pipeline: pipeline,
|
||||
};
|
||||
root.next += 1;
|
||||
root.tabs.push(tab.name.clone());
|
||||
(tab, console)
|
||||
let tab = TabActor {
|
||||
name: format!("tab{}", root.next),
|
||||
title: "".to_string(),
|
||||
url: "about:blank".to_string(),
|
||||
};
|
||||
actors.register::<TabActor>(box tab);
|
||||
actors.register::<ConsoleActor>(box console);
|
||||
}
|
||||
let console = ConsoleActor {
|
||||
name: format!("console{}", root.next),
|
||||
script_chan: sender,
|
||||
pipeline: pipeline,
|
||||
};
|
||||
|
||||
root.next += 1;
|
||||
root.tabs.push(tab.name.clone());
|
||||
(tab, console)
|
||||
};
|
||||
|
||||
actors.register(box tab);
|
||||
actors.register(box console);
|
||||
}
|
||||
|
||||
//TODO: figure out some system that allows us to watch for new connections,
|
||||
// shut down existing ones at arbitrary times, and also watch for messages
|
||||
// from multiple script tasks simultaneously. Polling for new connections
|
||||
// for 300ms and then checking the receiver is not a good compromise
|
||||
// (and makes Servo hang on exit if there's an open connection, no less).
|
||||
|
||||
//TODO: make constellation send ServerExitMsg on shutdown.
|
||||
|
||||
// accept connections and process them, spawning a new tasks for each one
|
||||
for stream in acceptor.incoming() {
|
||||
match stream {
|
||||
|
|
22
components/devtools/protocol.rs
Normal file
22
components/devtools/protocol.rs
Normal file
|
@ -0,0 +1,22 @@
|
|||
/* 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/. */
|
||||
|
||||
/// Low-level wire protocol implementation. Currently only supports [JSON packets](https://wiki.mozilla.org/Remote_Debugging_Protocol_Stream_Transport#JSON_Packets).
|
||||
|
||||
use serialize::{json, Encodable};
|
||||
use std::io::{IoError, TcpStream};
|
||||
|
||||
pub trait JsonPacketSender {
|
||||
fn write_json_packet<'a, T: Encodable<json::Encoder<'a>,IoError>>(&mut self, obj: &T);
|
||||
}
|
||||
|
||||
impl JsonPacketSender for TcpStream {
|
||||
fn write_json_packet<'a, T: Encodable<json::Encoder<'a>,IoError>>(&mut self, obj: &T) {
|
||||
let s = json::encode(obj).replace("__type__", "type");
|
||||
println!("<- {:s}", s);
|
||||
self.write_str(s.len().to_string().as_slice()).unwrap();
|
||||
self.write_u8(':' as u8).unwrap();
|
||||
self.write_str(s.as_slice()).unwrap();
|
||||
}
|
||||
}
|
|
@ -10,16 +10,24 @@
|
|||
|
||||
extern crate servo_msg = "msg";
|
||||
|
||||
/// This module contains shared types and messages for use by devtools/script.
|
||||
/// The traits are here instead of in script so that the devtools crate can be
|
||||
/// modified independently of the rest of Servo.
|
||||
|
||||
use servo_msg::constellation_msg::PipelineId;
|
||||
|
||||
pub type DevtoolsControlChan = Sender<DevtoolsControlMsg>;
|
||||
pub type DevtoolsControlPort = Receiver<DevtoolScriptControlMsg>;
|
||||
|
||||
/// Messages to the instruct the devtools server to update its known actors/state
|
||||
/// according to changes in the browser.
|
||||
pub enum DevtoolsControlMsg {
|
||||
NewGlobal(PipelineId, Sender<DevtoolScriptControlMsg>),
|
||||
ServerExitMsg
|
||||
}
|
||||
|
||||
/// Serialized JS return values
|
||||
/// TODO: generalize this beyond the EvaluateJS message?
|
||||
pub enum EvaluateJSReply {
|
||||
VoidValue,
|
||||
NullValue,
|
||||
|
@ -29,10 +37,14 @@ pub enum EvaluateJSReply {
|
|||
ActorValue(String),
|
||||
}
|
||||
|
||||
/// Messages to process in a particular script task, as instructed by a devtools client.
|
||||
pub enum DevtoolScriptControlMsg {
|
||||
EvaluateJS(PipelineId, String, Sender<EvaluateJSReply>),
|
||||
}
|
||||
|
||||
/// Messages to instruct devtools server to update its state relating to a particular
|
||||
/// tab.
|
||||
pub enum ScriptDevtoolControlMsg {
|
||||
/// Report a new JS error message
|
||||
ReportConsoleMsg(String),
|
||||
}
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue