├── .appveyor.yml ├── .gitignore ├── .travis.yml ├── Cargo.toml ├── LICENSE_APACHE ├── LICENSE_MIT ├── README.md ├── src ├── lib.rs ├── node.rs └── utils.rs ├── tests └── web.rs └── www ├── .bin └── create-wasm-app.js ├── .gitignore ├── .travis.yml ├── LICENSE-APACHE ├── LICENSE-MIT ├── README.md ├── bootstrap.js ├── index.html ├── index.js ├── package-lock.json ├── package.json └── webpack.config.js /.appveyor.yml: -------------------------------------------------------------------------------- 1 | install: 2 | - appveyor-retry appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe 3 | - if not defined RUSTFLAGS rustup-init.exe -y --default-host x86_64-pc-windows-msvc --default-toolchain nightly 4 | - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin 5 | - rustc -V 6 | - cargo -V 7 | 8 | build: false 9 | 10 | test_script: 11 | - cargo test --locked 12 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | /target 2 | **/*.rs.bk 3 | Cargo.lock 4 | bin/ 5 | pkg/ 6 | wasm-pack.log 7 | .idea 8 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: rust 2 | sudo: false 3 | 4 | cache: cargo 5 | 6 | matrix: 7 | include: 8 | 9 | # Builds with wasm-pack. 10 | - rust: beta 11 | env: RUST_BACKTRACE=1 12 | addons: 13 | firefox: latest 14 | chrome: stable 15 | before_script: 16 | - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update) 17 | - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate) 18 | - cargo install-update -a 19 | - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f 20 | script: 21 | - cargo generate --git . --name testing 22 | # Having a broken Cargo.toml (in that it has curlies in fields) anywhere 23 | # in any of our parent dirs is problematic. 24 | - mv Cargo.toml Cargo.toml.tmpl 25 | - cd testing 26 | - wasm-pack build 27 | - wasm-pack test --chrome --firefox --headless 28 | 29 | # Builds on nightly. 30 | - rust: nightly 31 | env: RUST_BACKTRACE=1 32 | before_script: 33 | - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update) 34 | - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate) 35 | - cargo install-update -a 36 | - rustup target add wasm32-unknown-unknown 37 | script: 38 | - cargo generate --git . --name testing 39 | - mv Cargo.toml Cargo.toml.tmpl 40 | - cd testing 41 | - cargo check 42 | - cargo check --target wasm32-unknown-unknown 43 | - cargo check --no-default-features 44 | - cargo check --target wasm32-unknown-unknown --no-default-features 45 | - cargo check --no-default-features --features console_error_panic_hook 46 | - cargo check --target wasm32-unknown-unknown --no-default-features --features console_error_panic_hook 47 | - cargo check --no-default-features --features "console_error_panic_hook wee_alloc" 48 | - cargo check --target wasm32-unknown-unknown --no-default-features --features "console_error_panic_hook wee_alloc" 49 | 50 | # Builds on beta. 51 | - rust: beta 52 | env: RUST_BACKTRACE=1 53 | before_script: 54 | - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update) 55 | - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate) 56 | - cargo install-update -a 57 | - rustup target add wasm32-unknown-unknown 58 | script: 59 | - cargo generate --git . --name testing 60 | - mv Cargo.toml Cargo.toml.tmpl 61 | - cd testing 62 | - cargo check 63 | - cargo check --target wasm32-unknown-unknown 64 | - cargo check --no-default-features 65 | - cargo check --target wasm32-unknown-unknown --no-default-features 66 | - cargo check --no-default-features --features console_error_panic_hook 67 | - cargo check --target wasm32-unknown-unknown --no-default-features --features console_error_panic_hook 68 | # Note: no enabling the `wee_alloc` feature here because it requires 69 | # nightly for now. 70 | -------------------------------------------------------------------------------- /Cargo.toml: -------------------------------------------------------------------------------- 1 | [package] 2 | name = "rusty-gun" 3 | version = "0.1.2" 4 | authors = ["Martti Malmi"] 5 | edition = "2018" 6 | repository = "https://github.com/mmalmi/rusty-gun" 7 | 8 | [lib] 9 | crate-type = ["cdylib", "rlib"] 10 | 11 | [features] 12 | default = ["console_error_panic_hook"] 13 | 14 | [dependencies] 15 | wasm-bindgen = { version = "0.2.78", features = ["serde-serialize"] } 16 | serde = { version = "1.0", features = ["derive"] } 17 | serde_json = "1.0.64" 18 | js-sys = "0.3.55" 19 | 20 | # The `console_error_panic_hook` crate provides better debugging of panics by 21 | # logging them with `console.error`. This is great for development, but requires 22 | # all the `std::fmt` and `std::panicking` infrastructure, so isn't great for 23 | # code size when deploying. 24 | console_error_panic_hook = { version = "0.1.6", optional = true } 25 | 26 | # `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size 27 | # compared to the default allocator's ~10K. It is slower than the default 28 | # allocator, however. 29 | # 30 | # Unfortunately, `wee_alloc` requires nightly Rust when targeting wasm for now. 31 | wee_alloc = { version = "0.4.5", optional = true } 32 | 33 | [dependencies.web-sys] 34 | version = "0.3.55" 35 | features = [ 36 | "BinaryType", 37 | "ErrorEvent", 38 | "MessageEvent", 39 | "ProgressEvent", 40 | "WebSocket", 41 | ] 42 | 43 | [dev-dependencies] 44 | wasm-bindgen-test = "0.3.13" 45 | 46 | [profile.release] 47 | # Tell `rustc` to optimize for small code size. 48 | opt-level = "s" 49 | -------------------------------------------------------------------------------- /LICENSE_APACHE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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2 | 3 |

gun-rs-wasm

4 | 5 | Rust & WASM port of Gun. 6 |

For a non-wasm version, check out rod 7 | 8 | Example (source) 9 | 10 |

11 | 12 | ## Use 13 | 14 | `npm install rusty-gun` 15 | 16 | ``` 17 | import { Node as Gun } from "rusty-gun" 18 | const gun = new Gun('ws://localhost:8765/gun') 19 | gun.get("profile").get("name").on((v,k) => console.log(k,v)) 20 | gun.get("profile").get("name").put("Satoshi") 21 | ``` 22 | 23 | You'll need to [load](https://developer.mozilla.org/en-US/docs/WebAssembly/Loading_and_running#using_fetch) rusty_gun_bg.wasm into the document first. It needs to be served using the mime type `application/wasm`. 24 | 25 | ## About 26 | 27 | [**📚 Read this template tutorial! 📚**][template-docs] 28 | 29 | This template is designed for compiling Rust libraries into WebAssembly and 30 | publishing the resulting package to NPM. 31 | 32 | Be sure to check out [other `wasm-pack` tutorials online][tutorials] for other 33 | templates and usages of `wasm-pack`. 34 | 35 | [tutorials]: https://rustwasm.github.io/docs/wasm-pack/tutorials/index.html 36 | [template-docs]: https://rustwasm.github.io/docs/wasm-pack/tutorials/npm-browser-packages/index.html 37 | 38 | ## 🚴 Develop 39 | 40 | ### 🐑 Use `cargo generate` to Clone this Template 41 | 42 | [Learn more about `cargo generate` here.](https://github.com/ashleygwilliams/cargo-generate) 43 | 44 | ``` 45 | cargo generate --git https://github.com/rustwasm/wasm-pack-template.git --name my-project 46 | cd my-project 47 | ``` 48 | 49 | ### 🛠️ Build with `wasm-pack build` 50 | 51 | ``` 52 | wasm-pack build 53 | ``` 54 | 55 | ### 🔬 Test in Headless Browsers with `wasm-pack test` 56 | 57 | ``` 58 | wasm-pack test --headless --firefox 59 | ``` 60 | 61 | ### 🎁 Publish to NPM with `wasm-pack publish` 62 | 63 | ``` 64 | wasm-pack publish 65 | ``` 66 | 67 | ## 🔋 Batteries Included 68 | 69 | * [`wasm-bindgen`](https://github.com/rustwasm/wasm-bindgen) for communicating 70 | between WebAssembly and JavaScript. 71 | * [`console_error_panic_hook`](https://github.com/rustwasm/console_error_panic_hook) 72 | for logging panic messages to the developer console. 73 | * [`wee_alloc`](https://github.com/rustwasm/wee_alloc), an allocator optimized 74 | for small code size. 75 | -------------------------------------------------------------------------------- /src/lib.rs: -------------------------------------------------------------------------------- 1 | mod utils; 2 | use wasm_bindgen::prelude::*; 3 | use std::collections::{BTreeMap, HashMap, HashSet}; 4 | use std::sync::{ 5 | atomic::{AtomicUsize, Ordering}, 6 | Arc, 7 | RwLock 8 | }; 9 | use wasm_bindgen::JsCast; 10 | use web_sys::{ErrorEvent, MessageEvent, WebSocket}; 11 | use js_sys::{JSON, Reflect, Object as JsObject, Array as JsArray}; 12 | use serde_json::{json, Value as SerdeJsonValue}; 13 | use crate::utils::*; 14 | 15 | macro_rules! console_log { 16 | ($($t:tt)*) => (log(&format_args!($($t)*).to_string())) 17 | } 18 | 19 | #[wasm_bindgen] 20 | extern "C" { 21 | #[wasm_bindgen(js_namespace = console)] 22 | fn log(s: &str); 23 | } 24 | 25 | // When the `wee_alloc` feature is enabled, use `wee_alloc` as the global 26 | // allocator. 27 | #[cfg(feature = "wee_alloc")] 28 | #[global_allocator] 29 | static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT; 30 | 31 | static COUNTER: AtomicUsize = AtomicUsize::new(1); 32 | fn get_id() -> usize { COUNTER.fetch_add(1, Ordering::Relaxed) } 33 | 34 | // Nodes need to be cloneable so that each instance points to the same data in the graph. 35 | // But can we somehow wrap Node itself into Arc> instead of wrapping all its properties? 36 | // The code is not pretty with all these Arc-RwLock read/write().unwraps(). 37 | type Value = Arc>>; 38 | type Children = Arc>>; 39 | type Parents = Arc>>; 40 | type Subscriptions = Arc>>; 41 | type SharedNodeStore = Arc>>; 42 | type SharedWebSockets = Arc>>; 43 | 44 | // TODO proper automatic tests 45 | // TODO generic version for non-wasm usage 46 | // TODO break into submodules 47 | // TODO persist data by saving root node to indexedDB as serialized by serde? 48 | 49 | #[wasm_bindgen] 50 | #[derive(Debug, Clone)] 51 | pub struct Node { 52 | id: usize, 53 | updated_at: Arc>, // TODO: Option? 54 | key: String, 55 | path: Vec, 56 | value: Value, 57 | children: Children, 58 | parents: Parents, 59 | on_subscriptions: Subscriptions, 60 | map_subscriptions: Subscriptions, 61 | store: SharedNodeStore, 62 | websockets: SharedWebSockets 63 | } 64 | 65 | #[wasm_bindgen] 66 | impl Node { 67 | #[wasm_bindgen(constructor)] 68 | pub fn new(options: &JsValue) -> Self { 69 | set_panic_hook(); 70 | let node = Self { 71 | id: 0, 72 | updated_at: Arc::new(RwLock::new(0.0)), 73 | key: "".to_string(), 74 | path: Vec::new(), 75 | value: Value::default(), 76 | children: Children::default(), 77 | parents: Parents::default(), 78 | on_subscriptions: Subscriptions::default(), 79 | map_subscriptions: Subscriptions::default(), 80 | store: SharedNodeStore::default(), 81 | websockets: SharedWebSockets::default() 82 | }; 83 | node.handle_options(options); 84 | node 85 | } 86 | 87 | fn handle_options(&self, options: &JsValue) { 88 | let mut peers = Vec::new(); 89 | if let Some(peer) = options.as_string() { 90 | peers.push(peer); 91 | } 92 | if let Some(object) = JsObject::try_from(options) { // horrible. can JsValue processing be improved? 93 | if let Ok(val) = Reflect::get(object, &JsValue::from("peers")) { 94 | if JsArray::is_array(&val) { 95 | for peer in JsArray::from(&val).iter() { 96 | if let Some(peer) = peer.as_string() { 97 | peers.push(peer.to_string()); 98 | } 99 | } 100 | } 101 | } 102 | } 103 | 104 | for peer in peers { 105 | let _ = self.start_websocket(peer); 106 | } 107 | } 108 | 109 | fn start_websocket(&self, url: String) -> Result<(), JsValue> { 110 | // Connect to an echo server 111 | let ws = WebSocket::new(&url)?; 112 | // For small binary messages, like CBOR, Arraybuffer is more efficient than Blob handling 113 | ws.set_binary_type(web_sys::BinaryType::Arraybuffer); 114 | // create callback 115 | 116 | let mut cloned_self = self.clone(); 117 | let onmessage_callback = Closure::wrap(Box::new(move |e: MessageEvent| { 118 | if let Ok(txt) = e.data().dyn_into::() { 119 | console_log!("received: {}", txt); 120 | if let Ok(json) = serde_json::from_str::(&String::from(txt.clone())) { 121 | cloned_self.incoming_message(&json, false); 122 | } 123 | } else { 124 | console_log!("message event, received Unknown: {:?}", e.data()); 125 | } 126 | }) as Box); 127 | // set message event handler on WebSocket 128 | ws.set_onmessage(Some(onmessage_callback.as_ref().unchecked_ref())); 129 | // forget the callback to keep it alive 130 | onmessage_callback.forget(); 131 | 132 | let onerror_callback = Closure::wrap(Box::new(move |e: ErrorEvent| { 133 | console_log!("websocket error: {:?}", e); 134 | }) as Box); 135 | ws.set_onerror(Some(onerror_callback.as_ref().unchecked_ref())); 136 | onerror_callback.forget(); 137 | 138 | let cloned_ws = ws.clone(); 139 | 140 | let cloned_ws_pointer = self.websockets.clone(); 141 | let url_clone = url.clone(); 142 | let onopen_callback = Closure::wrap(Box::new(move |_| { 143 | console_log!("socket opened"); 144 | let msg_id = random_string(8); 145 | let peer_id = random_string(8); 146 | let m = format!("{{\"#\":\"{}\",\"dam\":\"hi\",\"pid\":\"{}\"}}", msg_id, peer_id); 147 | let _ = cloned_ws.send_with_str(&m); 148 | cloned_ws_pointer.write().unwrap().insert(url.clone(), cloned_ws.clone()); 149 | }) as Box); 150 | ws.set_onopen(Some(onopen_callback.as_ref().unchecked_ref())); 151 | onopen_callback.forget(); 152 | 153 | let cloned_self = self.clone(); 154 | let cloned_ws_pointer = self.websockets.clone(); 155 | let onclose_callback = Closure::wrap(Box::new(move |_| { 156 | console_log!("socket closed"); 157 | let mut sockets = cloned_ws_pointer.write().unwrap(); 158 | sockets.remove(&url_clone); 159 | let _ = cloned_self.start_websocket(url_clone.clone()); // TODO call with timeout 160 | }) as Box); 161 | ws.set_onclose(Some(onclose_callback.as_ref().unchecked_ref())); 162 | onclose_callback.forget(); 163 | 164 | Ok(()) 165 | } 166 | 167 | fn new_child(&self, key: String) -> usize { 168 | assert!(key.len() > 0, "Key length must be greater than zero"); 169 | let mut parents = HashSet::new(); 170 | parents.insert((self.id, key.clone())); 171 | let mut path = self.path.clone(); 172 | if self.key.len() > 0 { 173 | path.push(self.key.clone()); 174 | } 175 | let id = get_id(); 176 | let node = Self { 177 | id, 178 | updated_at: Arc::new(RwLock::new(0.0)), 179 | key: key.clone(), 180 | path, 181 | value: Value::default(), 182 | children: Children::default(), 183 | parents: Arc::new(RwLock::new(parents)), 184 | on_subscriptions: Subscriptions::default(), 185 | map_subscriptions: Subscriptions::default(), 186 | store: self.store.clone(), 187 | websockets: self.websockets.clone() 188 | }; 189 | self.store.write().unwrap().insert(id, node); 190 | self.children.write().unwrap().insert(key, id); 191 | id 192 | } 193 | 194 | pub fn off(&mut self, subscription_id: usize) { 195 | self.on_subscriptions.write().unwrap().remove(&subscription_id); 196 | self.map_subscriptions.write().unwrap().remove(&subscription_id); 197 | } 198 | 199 | pub fn on(&mut self, callback: js_sys::Function) -> usize { 200 | self._call_if_value_exists(&callback, &self.key.clone()); 201 | let subscription_id = get_id(); 202 | self.on_subscriptions.write().unwrap().insert(subscription_id, callback); 203 | let m = self.create_get_msg(); 204 | if self.websockets.read().unwrap().len() > 0 { 205 | self.ws_send(&m.to_string()); 206 | } 207 | subscription_id 208 | } 209 | 210 | pub fn get(&mut self, key: &str) -> Node { 211 | let id = self.get_child_id(key.to_string()); 212 | let mut node = self.store.read().unwrap().get(&id).unwrap().clone(); 213 | node.key = key.to_string(); 214 | node 215 | } 216 | 217 | pub fn map(&self, callback: js_sys::Function) -> usize { 218 | for (key, child_id) in self.children.read().unwrap().iter() { // TODO can be faster with rayon multithreading? 219 | if let Some(child) = self.store.read().unwrap().get(&child_id) { 220 | child.clone()._call_if_value_exists(&callback, key); 221 | } 222 | } 223 | let subscription_id = get_id(); 224 | self.map_subscriptions.write().unwrap().insert(subscription_id, callback); 225 | subscription_id 226 | } 227 | 228 | fn get_child_id(&mut self, key: String) -> usize { 229 | if self.value.read().unwrap().is_some() { 230 | self.new_child(key) 231 | } else { 232 | let existing_id = match self.children.read().unwrap().get(&key) { 233 | Some(node_id) => Some(*node_id), 234 | _ => None 235 | }; 236 | match existing_id { 237 | Some(id) => id, 238 | _ => self.new_child(key) 239 | } 240 | } 241 | } 242 | 243 | fn create_get_msg(&self) -> String { 244 | let msg_id = random_string(8); 245 | let key = self.key.clone(); 246 | if self.path.len() > 0 { 247 | let path = self.path.join("/"); 248 | json!({ 249 | "get": { 250 | "#": path, 251 | ".": key 252 | }, 253 | "#": msg_id 254 | }).to_string() 255 | } else { 256 | json!({ 257 | "get": { 258 | "#": key 259 | }, 260 | "#": msg_id 261 | }).to_string() 262 | } 263 | } 264 | 265 | fn create_put_msg(&self, value: &JsValue, updated_at: f64) -> String { 266 | let value: String = JSON::stringify(value).unwrap().into(); // TODO non-strings shouldn't be stringified 267 | let msg_id = random_string(8); 268 | let full_path = &self.path.join("/"); 269 | let key = &self.key.clone(); 270 | let mut json = json!({ 271 | "put": { 272 | full_path: { 273 | "_": { 274 | "#": full_path, 275 | ">": { 276 | key: updated_at 277 | } 278 | }, 279 | key: &value 280 | } 281 | }, 282 | "#": msg_id, 283 | }); 284 | 285 | let puts = &mut json["put"]; 286 | // if it's a nested node, put its parents also 287 | for (i, node_name) in self.path.iter().enumerate().nth(1) { 288 | let path = self.path[..i].join("/"); 289 | let path_obj = json!({ 290 | "_": { 291 | "#": path, 292 | ">": { 293 | node_name: updated_at 294 | } 295 | }, 296 | node_name: { 297 | "#": self.path[..(i+1)].join("/") 298 | } 299 | }); 300 | puts[path] = path_obj; 301 | } 302 | json.to_string() 303 | } 304 | 305 | fn incoming_message(&mut self, msg: &SerdeJsonValue, is_from_array: bool) { 306 | if let Some(array) = msg.as_array() { 307 | if is_from_array { return; } // don't allow array inside array 308 | for msg in array.iter() { 309 | self.incoming_message(msg, true); 310 | } 311 | return; 312 | } 313 | if let Some(obj) = msg.as_object() { 314 | if let Some(put) = obj.get("put") { 315 | if let Some(obj) = put.as_object() { 316 | self.incoming_put(obj); 317 | } 318 | } 319 | if let Some(get) = obj.get("get") { 320 | if let Some(obj) = get.as_object() { 321 | self.incoming_get(obj); 322 | } 323 | } 324 | } 325 | } 326 | 327 | fn incoming_put(&mut self, put: &serde_json::Map) { 328 | for (updated_key, update_data) in put.iter() { 329 | let mut node = self.get(updated_key); 330 | for node_name in updated_key.split("/").nth(1) { 331 | node = node.get(node_name); 332 | } 333 | if let Some(updated_at_times) = update_data["_"][">"].as_object() { 334 | for (child_key, incoming_val_updated_at) in updated_at_times.iter() { 335 | let incoming_val_updated_at = incoming_val_updated_at.as_f64().unwrap(); 336 | let mut child = node.get(child_key); 337 | if *child.updated_at.read().unwrap() < incoming_val_updated_at { 338 | // TODO if incoming_val_updated_at > current_time { defer_operation() } 339 | if let Some(new_value) = update_data.get(child_key) { 340 | let new_value = JsValue::from_serde(new_value).unwrap(); 341 | child.put_local(&new_value, incoming_val_updated_at); 342 | } 343 | } // TODO else append to history 344 | } 345 | } 346 | } 347 | } 348 | 349 | fn _children_to_js_value(&self, children: &BTreeMap) -> JsValue { 350 | let obj = JsObject::new(); 351 | for (key, child_id) in children.iter() { // TODO faster with rayon? 352 | let child_value: Option = match self.store.read().unwrap().get(&child_id) { 353 | Some(child) => match &*(child.value.read().unwrap()) { 354 | Some(value) => Some(value.clone()), 355 | _ => None 356 | }, 357 | _ => None 358 | }; 359 | if let Some(value) = child_value { 360 | let _ = Reflect::set(&obj, &JsValue::from(key), &value); 361 | } else { // return child Node object 362 | let _ = Reflect::set( 363 | &obj, 364 | &JsValue::from(key), 365 | &self.store.read().unwrap().get(&child_id).unwrap().clone().into() 366 | ); 367 | } 368 | } 369 | obj.into() 370 | } 371 | 372 | fn _call_if_value_exists(&mut self, callback: &js_sys::Function, key: &String) { 373 | if let Some(value) = self.get_js_value() { 374 | Self::_call(callback, &value.as_ref(), key); 375 | } 376 | } 377 | 378 | fn ws_send(&self, msg: &String) { 379 | for ws in self.websockets.read().unwrap().values() { 380 | match ws.send_with_str(&msg) { 381 | Ok(_) => console_log!("sent: {}", msg), 382 | Err(err) => console_log!("error sending message: {:?}", err), 383 | } 384 | } 385 | } 386 | 387 | fn get_js_value(&self) -> Option { 388 | let value = self.value.read().unwrap(); 389 | if value.is_some() { 390 | value.clone() 391 | } else { 392 | let children = self.children.read().unwrap(); 393 | if !children.is_empty() { 394 | let obj = self._children_to_js_value(&children); 395 | return Some(obj) 396 | } 397 | None 398 | } 399 | } 400 | 401 | fn send_get_response_if_have(&self) { 402 | if let Some(value) = self.get_js_value() { 403 | let msg_id = random_string(8); 404 | let full_path = &self.path.join("/"); 405 | let key = &self.key.clone(); 406 | let value: String = JSON::stringify(&value).unwrap().into(); // TODO non-strings shouldn't be stringified 407 | let json = json!({ 408 | "put": { 409 | full_path: { 410 | "_": { 411 | "#": full_path, 412 | ">": { 413 | key: &*self.updated_at.read().unwrap() 414 | } 415 | }, 416 | key: &value 417 | } 418 | }, 419 | "#": msg_id, 420 | }).to_string(); 421 | self.ws_send(&json); 422 | } 423 | } 424 | 425 | fn incoming_get(&mut self, get: &serde_json::Map) { 426 | console_log!("incoming get {:?}", get); 427 | if let Some(path) = get.get("#") { 428 | if let Some(path) = path.as_str() { 429 | if let Some(key) = get.get(".") { 430 | if let Some(key) = key.as_str() { 431 | let mut split = path.split("/"); 432 | let mut node = self.get(split.nth(0).unwrap()); 433 | for node_name in split.nth(0) { 434 | node = node.get(node_name); // TODO get only existing nodes in order to not spam our graph with empties 435 | } 436 | node = node.get(key); 437 | node.send_get_response_if_have(); 438 | } 439 | } else { 440 | self.get(path).send_get_response_if_have(); 441 | } 442 | } 443 | } 444 | } 445 | 446 | pub fn put(&mut self, value: &JsValue) { 447 | let time = js_sys::Date::now(); 448 | self.put_local(value, time); 449 | if self.websockets.read().unwrap().len() > 0 { 450 | let m = self.create_put_msg(&value, time); 451 | self.ws_send(&m); 452 | } 453 | } 454 | 455 | fn put_local(&mut self, value: &JsValue, time: f64) { 456 | // root.get(soul).get(key).put(jsvalue) 457 | // TODO handle javascript Object values 458 | // TODO: if "children" is replaced with "value", remove backreference from linked objects 459 | *self.updated_at.write().unwrap() = time; 460 | *self.value.write().unwrap() = Some(value.clone()); 461 | *self.children.write().unwrap() = BTreeMap::new(); 462 | for callback in self.on_subscriptions.read().unwrap().values() { // rayon? 463 | Self::_call(callback, value, &self.key); 464 | } 465 | for (parent_id, key) in self.parents.read().unwrap().iter() { // rayon? 466 | if let Some(parent) = self.store.read().unwrap().get(parent_id) { 467 | let mut parent_clone = parent.clone(); 468 | for callback in parent.clone().map_subscriptions.read().unwrap().values() { 469 | Self::_call(callback, value, key); 470 | } 471 | for callback in parent.on_subscriptions.read().unwrap().values() { 472 | parent_clone._call_if_value_exists(&callback, key); 473 | } 474 | *parent.value.write().unwrap() = None; 475 | } 476 | } 477 | } 478 | 479 | fn _call(callback: &js_sys::Function, value: &JsValue, key: &String) { 480 | let _ = callback.call2(&JsValue::null(), value, &JsValue::from(key)); // can the function go out of scope? remove sub on Err 481 | } 482 | } 483 | 484 | #[cfg(test)] 485 | mod tests { 486 | // TODO proper test 487 | // TODO benchmark 488 | #[test] 489 | fn it_works() { 490 | let mut gun = crate::Node::new(); 491 | let node = gun.get("asdf"); 492 | assert_eq!(gun.id, 0); 493 | assert_eq!(node.id, 1); 494 | } 495 | } 496 | -------------------------------------------------------------------------------- /src/node.rs: -------------------------------------------------------------------------------- 1 | use std::collections::{BTreeMap, HashMap, HashSet}; 2 | use std::sync::{ 3 | atomic::{AtomicUsize, Ordering}, 4 | Arc, 5 | RwLock 6 | }; 7 | 8 | static COUNTER: AtomicUsize = AtomicUsize::new(1); 9 | fn get_id() -> usize { COUNTER.fetch_add(1, Ordering::Relaxed) } 10 | 11 | // Nodes need to be cloneable so that each instance points to the same data in the graph. 12 | // But can we somehow wrap Node itself into Arc> instead of wrapping all its properties? 13 | // The code is not pretty with all these Arc-RwLock read/write().unwraps(). 14 | type Value = Arc>>; 15 | type Children = Arc>>; 16 | type Parents = Arc>>; 17 | type Subscriptions = Arc>>; 18 | type SharedNodeStore = Arc>>; 19 | 20 | // TODO proper automatic tests 21 | 22 | pub trait Callable { 23 | fn call(&mut self); 24 | } 25 | 26 | pub struct Node>, CallbackType: Callable> { 27 | id: usize, 28 | key: String, 29 | value: Value, 30 | children: Children, 31 | parents: Parents, 32 | on_subscriptions: Subscriptions, 33 | map_subscriptions: Subscriptions, 34 | store: SharedNodeStore 35 | } 36 | 37 | impl Node { 38 | pub fn new() -> Self { 39 | Self { 40 | id: 0, 41 | key: "".to_string(), 42 | value: Value::default(), 43 | children: Children::default(), 44 | parents: Parents::default(), 45 | on_subscriptions: Subscriptions::default(), 46 | map_subscriptions: Subscriptions::default(), 47 | store: SharedNodeStore::default() 48 | } 49 | } 50 | 51 | fn new_child(&self, key: String) -> usize { 52 | let mut parents = HashSet::new(); 53 | parents.insert((self.id, key.clone())); 54 | let id = get_id(); 55 | let node = Self { 56 | id, 57 | key: key.clone(), 58 | value: Value::default(), 59 | children: Children::default(), 60 | parents: Arc::new(RwLock::new(parents)), 61 | on_subscriptions: Subscriptions::default(), 62 | map_subscriptions: Subscriptions::default(), 63 | store: self.store.clone() 64 | }; 65 | self.store.write().unwrap().insert(id, node); 66 | self.children.write().unwrap().insert(key, id); 67 | id 68 | } 69 | 70 | pub fn off(&mut self, subscription_id: usize) { 71 | self.on_subscriptions.write().unwrap().remove(&subscription_id); 72 | self.map_subscriptions.write().unwrap().remove(&subscription_id); 73 | } 74 | 75 | fn _call_if_value_exists(&mut self, callback: &js_sys::Function, key: &String) { 76 | let value = self.value.read().unwrap(); 77 | if value.is_some() { 78 | Self::_call(callback, &value.as_ref().unwrap(), key); 79 | } else { 80 | let children = self.children.read().unwrap(); 81 | if !children.is_empty() { 82 | Self::_call(callback, &children.into(), key); 83 | } 84 | } 85 | } 86 | 87 | pub fn on(&mut self, callback: js_sys::Function) -> usize { 88 | self._call_if_value_exists(&callback, &self.key.clone()); 89 | let subscription_id = get_id(); 90 | self.on_subscriptions.write().unwrap().insert(subscription_id, callback); 91 | subscription_id 92 | } 93 | 94 | fn get_child_id(&mut self, key: String) -> usize { 95 | if self.value.read().unwrap().is_some() { 96 | self.new_child(key) 97 | } else { 98 | let existing_id = match self.children.read().unwrap().get(&key) { 99 | Some(node_id) => Some(*node_id), 100 | _ => None 101 | }; 102 | match existing_id { 103 | Some(id) => id, 104 | _ => self.new_child(key) 105 | } 106 | } 107 | } 108 | 109 | pub fn get(&mut self, key: &str) -> Node { 110 | let id = self.get_child_id(key.to_string()); 111 | let mut node = self.store.read().unwrap().get(&id).unwrap().clone(); 112 | node.key = key.to_string(); 113 | node 114 | } 115 | 116 | pub fn map(&self, callback: js_sys::Function) -> usize { 117 | for (key, child_id) in self.children.read().unwrap().iter() { 118 | if let Some(child) = self.store.read().unwrap().get(&child_id) { 119 | child.clone()._call_if_value_exists(&callback, key); 120 | } 121 | } 122 | let subscription_id = get_id(); 123 | self.map_subscriptions.write().unwrap().insert(subscription_id, callback); 124 | subscription_id 125 | } 126 | 127 | pub fn put(&mut self, value: &ValueType) { 128 | // TODO handle javascript Object values 129 | // TODO: if "children" is replaced with "value", remove backreference from linked objects 130 | *self.value.write().unwrap() = Some(value.clone()); 131 | *self.children.write().unwrap() = BTreeMap::new(); 132 | for callback in self.on_subscriptions.read().unwrap().values() { 133 | Self::_call(callback, value, &self.key); 134 | } 135 | for (parent_id, key) in self.parents.read().unwrap().iter() { 136 | let parent = self.store.read().unwrap().get(parent_id).unwrap().clone(); 137 | let mut parent2 = parent.clone(); 138 | for callback in parent.clone().map_subscriptions.read().unwrap().values() { 139 | Self::_call(callback, value, key); 140 | } 141 | for callback in parent.on_subscriptions.read().unwrap().values() { 142 | parent2._call_if_value_exists(&callback, key); 143 | } 144 | *parent.value.write().unwrap() = None; 145 | } 146 | } 147 | 148 | fn _call(callback: &js_sys::Function, value: &ValueType, key: &String) { 149 | let _ = callback.call2(&JsValue::null(), value, &JsValue::from(key)); // can the function go out of scope? remove sub on Err 150 | } 151 | } 152 | 153 | #[cfg(test)] 154 | mod tests { 155 | // TODO proper test 156 | // TODO benchmark 157 | #[test] 158 | fn it_works() { 159 | let mut gun = crate::Node::new(); 160 | let node = gun.get("asdf"); 161 | assert_eq!(gun.id, 0); 162 | assert_eq!(node.id, 1); 163 | } 164 | } 165 | -------------------------------------------------------------------------------- /src/utils.rs: -------------------------------------------------------------------------------- 1 | static CHARACTERS: &str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; 2 | static CHARACTERS_LENGTH: f64 = CHARACTERS.len() as f64; 3 | 4 | pub fn random_string(len: usize) -> String { 5 | let mut result = "".to_string(); 6 | for _ in 0..len { 7 | let random_index = (js_sys::Math::random() * CHARACTERS_LENGTH).floor() as usize; 8 | result.push(CHARACTERS.chars().nth(random_index).unwrap()); 9 | } 10 | result 11 | } 12 | 13 | pub fn set_panic_hook() { 14 | // When the `console_error_panic_hook` feature is enabled, we can call the 15 | // `set_panic_hook` function at least once during initialization, and then 16 | // we will get better error messages if our code ever panics. 17 | // 18 | // For more details see 19 | // https://github.com/rustwasm/console_error_panic_hook#readme 20 | #[cfg(feature = "console_error_panic_hook")] 21 | console_error_panic_hook::set_once(); 22 | } 23 | -------------------------------------------------------------------------------- /tests/web.rs: -------------------------------------------------------------------------------- 1 | //! Test suite for the Web and headless browsers. 2 | 3 | #![cfg(target_arch = "wasm32")] 4 | 5 | extern crate wasm_bindgen_test; 6 | use wasm_bindgen_test::*; 7 | 8 | wasm_bindgen_test_configure!(run_in_browser); 9 | 10 | #[wasm_bindgen_test] 11 | fn pass() { 12 | assert_eq!(1 + 1, 2); 13 | } 14 | -------------------------------------------------------------------------------- /www/.bin/create-wasm-app.js: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env node 2 | 3 | const { spawn } = require("child_process"); 4 | const fs = require("fs"); 5 | 6 | let folderName = '.'; 7 | 8 | if (process.argv.length >= 3) { 9 | folderName = process.argv[2]; 10 | if (!fs.existsSync(folderName)) { 11 | fs.mkdirSync(folderName); 12 | } 13 | } 14 | 15 | const clone = spawn("git", ["clone", "https://github.com/rustwasm/create-wasm-app.git", folderName]); 16 | 17 | clone.on("close", code => { 18 | if (code !== 0) { 19 | console.error("cloning the template failed!") 20 | process.exit(code); 21 | } else { 22 | console.log("🦀 Rust + 🕸 Wasm = ❤"); 23 | } 24 | }); 25 | -------------------------------------------------------------------------------- /www/.gitignore: -------------------------------------------------------------------------------- 1 | node_modules 2 | dist 3 | -------------------------------------------------------------------------------- /www/.travis.yml: -------------------------------------------------------------------------------- 1 | language: node_js 2 | node_js: "10" 3 | 4 | script: 5 | - ./node_modules/.bin/webpack 6 | -------------------------------------------------------------------------------- /www/LICENSE-APACHE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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2 | 3 |

create-wasm-app

4 | 5 | An npm init template for kick starting a project that uses NPM packages containing Rust-generated WebAssembly and bundles them with Webpack. 6 | 7 |

8 | Build Status 9 |

10 | 11 |

12 | Usage 13 | | 14 | Chat 15 |

16 | 17 | Built with 🦀🕸 by The Rust and WebAssembly Working Group 18 |
19 | 20 | ## About 21 | 22 | This template is designed for depending on NPM packages that contain 23 | Rust-generated WebAssembly and using them to create a Website. 24 | 25 | * Want to create an NPM package with Rust and WebAssembly? [Check out 26 | `wasm-pack-template`.](https://github.com/rustwasm/wasm-pack-template) 27 | * Want to make a monorepo-style Website without publishing to NPM? Check out 28 | [`rust-webpack-template`](https://github.com/rustwasm/rust-webpack-template) 29 | and/or 30 | [`rust-parcel-template`](https://github.com/rustwasm/rust-parcel-template). 31 | 32 | ## 🚴 Usage 33 | 34 | ``` 35 | npm init wasm-app 36 | ``` 37 | 38 | ## 🔋 Batteries Included 39 | 40 | - `.gitignore`: ignores `node_modules` 41 | - `LICENSE-APACHE` and `LICENSE-MIT`: most Rust projects are licensed this way, so these are included for you 42 | - `README.md`: the file you are reading now! 43 | - `index.html`: a bare bones html document that includes the webpack bundle 44 | - `index.js`: example js file with a comment showing how to import and use a wasm pkg 45 | - `package.json` and `package-lock.json`: 46 | - pulls in devDependencies for using webpack: 47 | - [`webpack`](https://www.npmjs.com/package/webpack) 48 | - [`webpack-cli`](https://www.npmjs.com/package/webpack-cli) 49 | - [`webpack-dev-server`](https://www.npmjs.com/package/webpack-dev-server) 50 | - defines a `start` script to run `webpack-dev-server` 51 | - `webpack.config.js`: configuration file for bundling your js with webpack 52 | 53 | ## License 54 | 55 | Licensed under either of 56 | 57 | * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0) 58 | * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT) 59 | 60 | at your option. 61 | 62 | ### Contribution 63 | 64 | Unless you explicitly state otherwise, any contribution intentionally 65 | submitted for inclusion in the work by you, as defined in the Apache-2.0 66 | license, shall be dual licensed as above, without any additional terms or 67 | conditions. 68 | -------------------------------------------------------------------------------- /www/bootstrap.js: -------------------------------------------------------------------------------- 1 | // A dependency graph that contains any wasm must all be imported 2 | // asynchronously. This `bootstrap.js` file does the single async import, so 3 | // that no one else needs to worry about it again. 4 | import("./index.js") 5 | .catch(e => console.error("Error importing `index.js`:", e)); 6 | -------------------------------------------------------------------------------- /www/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Hello wasm-pack! 6 | 7 | 8 | 9 | 10 |

Check out the console 👇

11 |

window.Gun and window.gun are available

12 |

It's running a Rust port of Gun.

13 | 14 | 15 | -------------------------------------------------------------------------------- /www/index.js: -------------------------------------------------------------------------------- 1 | import { Node as Gun } from "rusty-gun"; 2 | 3 | const gun = new Gun(); 4 | 5 | setTimeout(() => { // wait for websocket to open 6 | gun.get('latestMsg').on((v,k) => console.log(k,v)); 7 | 8 | const profile = gun.get('profile'); 9 | profile.get('name').get('first').on((name, key) => console.log('profile/name/first', name, key)); 10 | profile.get('age').on(console.log); 11 | profile.get('isAwesome').on(console.log); 12 | 13 | profile.get('name').get('first').put('Martin'); 14 | profile.get('age').put(32); 15 | profile.get('isAwesome').put(true); 16 | 17 | const onListenerId = profile.on((profile, key) => console.log('profile.on()', profile, key)); 18 | const mapListenerId = profile.map((val, key) => console.log('profile.map()', val, key)); 19 | 20 | console.log('onListenerId', onListenerId, 'mapListenerId', mapListenerId); 21 | 22 | setTimeout(() => { 23 | profile.get('age').put(33); 24 | }, 1000); 25 | }, 1000); 26 | 27 | window.gun = gun; 28 | window.Gun = Gun; -------------------------------------------------------------------------------- /www/package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "create-wasm-app", 3 | "version": "0.1.0", 4 | "description": "create an app to consume rust-generated wasm packages", 5 | "main": "index.js", 6 | "bin": { 7 | "create-wasm-app": ".bin/create-wasm-app.js" 8 | }, 9 | "scripts": { 10 | "build": "webpack --config webpack.config.js", 11 | "start": "webpack-dev-server" 12 | }, 13 | "repository": { 14 | "type": "git", 15 | "url": "git+https://github.com/rustwasm/create-wasm-app.git" 16 | }, 17 | "keywords": [ 18 | "webassembly", 19 | "wasm", 20 | "rust", 21 | "webpack" 22 | ], 23 | "author": "Ashley Williams ", 24 | "license": "(MIT OR Apache-2.0)", 25 | "bugs": { 26 | "url": "https://github.com/rustwasm/create-wasm-app/issues" 27 | }, 28 | "homepage": "https://github.com/rustwasm/create-wasm-app#readme", 29 | "devDependencies": { 30 | "hello-wasm-pack": "^0.1.0", 31 | "webpack": "^4.29.3", 32 | "webpack-cli": "^3.1.0", 33 | "webpack-dev-server": "^3.1.5", 34 | "copy-webpack-plugin": "^5.0.0" 35 | }, 36 | "dependencies": { 37 | "rusty-gun": "file:../pkg" 38 | } 39 | } 40 | -------------------------------------------------------------------------------- /www/webpack.config.js: -------------------------------------------------------------------------------- 1 | const CopyWebpackPlugin = require("copy-webpack-plugin"); 2 | const path = require('path'); 3 | 4 | module.exports = { 5 | entry: "./bootstrap.js", 6 | output: { 7 | path: path.resolve(__dirname, "dist"), 8 | filename: "bootstrap.js", 9 | }, 10 | mode: "development", 11 | plugins: [ 12 | new CopyWebpackPlugin(['index.html']) 13 | ], 14 | }; 15 | --------------------------------------------------------------------------------