@slide-computer/signer-web
Version:
JavaScript and TypeScript library to communicate with web signers on the Internet Computer
180 lines • 10.9 kB
JavaScript
var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, state, value, kind, f) {
if (kind === "m") throw new TypeError("Private method is not writable");
if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a setter");
if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot write private member to an object whose class did not declare it");
return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
};
var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
};
var _HeartbeatClient_instances, _HeartbeatClient_options, _HeartbeatClient_establish, _HeartbeatClient_maintain, _HeartbeatClient_receiveReadyResponse, _HeartbeatClient_sendStatusRequest, _HeartbeatServer_instances, _HeartbeatServer_options, _HeartbeatServer_origin, _HeartbeatServer_source, _HeartbeatServer_establish, _HeartbeatServer_maintain, _HeartbeatServer_receiveStatusRequest, _HeartbeatServer_sendReadyResponse;
import { isJsonRpcRequest, isJsonRpcResponse, } from "@slide-computer/signer";
export class HeartbeatClient {
constructor(options) {
_HeartbeatClient_instances.add(this);
_HeartbeatClient_options.set(this, void 0);
__classPrivateFieldSet(this, _HeartbeatClient_options, Object.assign({ establishTimeout: 10000, disconnectTimeout: 2000, statusPollingRate: 300, window: globalThis.window, crypto: globalThis.crypto }, options), "f");
__classPrivateFieldGet(this, _HeartbeatClient_instances, "m", _HeartbeatClient_establish).call(this);
}
}
_HeartbeatClient_options = new WeakMap(), _HeartbeatClient_instances = new WeakSet(), _HeartbeatClient_establish = function _HeartbeatClient_establish() {
const pending = [];
// Create new pending entry that's waiting for a response
const create = () => {
const id = __classPrivateFieldGet(this, _HeartbeatClient_options, "f").crypto.randomUUID();
pending.push(id);
return id;
};
// Establish communication channel if a response is received for any pending id
const listener = __classPrivateFieldGet(this, _HeartbeatClient_instances, "m", _HeartbeatClient_receiveReadyResponse).call(this, (response) => {
if (pending.includes(response.data.id)) {
listener();
clearInterval(interval);
clearTimeout(timeout);
__classPrivateFieldGet(this, _HeartbeatClient_options, "f").onEstablish(response.origin);
__classPrivateFieldGet(this, _HeartbeatClient_instances, "m", _HeartbeatClient_maintain).call(this, response.origin);
}
});
// Init timeout
const timeout = setTimeout(() => {
listener();
clearInterval(interval);
__classPrivateFieldGet(this, _HeartbeatClient_options, "f").onEstablishTimeout();
}, __classPrivateFieldGet(this, _HeartbeatClient_options, "f").establishTimeout);
// Start sending requests
const interval = setInterval(() => __classPrivateFieldGet(this, _HeartbeatClient_instances, "m", _HeartbeatClient_sendStatusRequest).call(this, create()), __classPrivateFieldGet(this, _HeartbeatClient_options, "f").statusPollingRate);
}, _HeartbeatClient_maintain = function _HeartbeatClient_maintain(origin) {
let interval;
let timeout;
let pending = [];
// Consume a pending entry if it exists
const consume = (id) => {
const index = pending.findIndex((entry) => entry.id === id);
if (index > -1) {
pending.splice(index, 1);
}
return index > -1;
};
// Create new pending entry that's waiting for a response
const create = () => {
const id = __classPrivateFieldGet(this, _HeartbeatClient_options, "f").crypto.randomUUID();
const time = new Date().getTime();
// Cleanup ids outside disconnect window
pending = pending.filter((entry) => time - __classPrivateFieldGet(this, _HeartbeatClient_options, "f").disconnectTimeout > entry.time);
// Insert and return new id
pending.push({ id, time });
return id;
};
// Clear existing timeout (if any) and create a new one
const resetTimeout = () => {
clearTimeout(timeout);
timeout = setTimeout(() => {
listener();
clearInterval(interval);
__classPrivateFieldGet(this, _HeartbeatClient_options, "f").onDisconnect();
}, __classPrivateFieldGet(this, _HeartbeatClient_options, "f").disconnectTimeout);
};
// Reset disconnect timeout if a response is received to an id within disconnect window
const listener = __classPrivateFieldGet(this, _HeartbeatClient_instances, "m", _HeartbeatClient_receiveReadyResponse).call(this, (response) => {
if (response.origin === origin && consume(response.data.id)) {
resetTimeout();
}
});
// Init timeout and start sending requests
resetTimeout();
interval = setInterval(() => __classPrivateFieldGet(this, _HeartbeatClient_instances, "m", _HeartbeatClient_sendStatusRequest).call(this, create()), __classPrivateFieldGet(this, _HeartbeatClient_options, "f").statusPollingRate);
}, _HeartbeatClient_receiveReadyResponse = function _HeartbeatClient_receiveReadyResponse(handler) {
const listener = (event) => {
if (event.source === __classPrivateFieldGet(this, _HeartbeatClient_options, "f").signerWindow &&
isJsonRpcResponse(event.data) &&
"result" in event.data &&
event.data.result === "ready") {
handler(event);
}
};
__classPrivateFieldGet(this, _HeartbeatClient_options, "f").window.addEventListener("message", listener);
return () => __classPrivateFieldGet(this, _HeartbeatClient_options, "f").window.removeEventListener("message", listener);
}, _HeartbeatClient_sendStatusRequest = function _HeartbeatClient_sendStatusRequest(id) {
__classPrivateFieldGet(this, _HeartbeatClient_options, "f").signerWindow.postMessage({ jsonrpc: "2.0", id, method: "icrc29_status" }, "*");
};
export class HeartbeatServer {
constructor(options) {
_HeartbeatServer_instances.add(this);
_HeartbeatServer_options.set(this, void 0);
_HeartbeatServer_origin.set(this, void 0);
_HeartbeatServer_source.set(this, void 0);
__classPrivateFieldSet(this, _HeartbeatServer_options, Object.assign({ establishTimeout: 10000, disconnectTimeout: 2000, window: globalThis.window }, options), "f");
__classPrivateFieldGet(this, _HeartbeatServer_instances, "m", _HeartbeatServer_establish).call(this);
}
}
_HeartbeatServer_options = new WeakMap(), _HeartbeatServer_origin = new WeakMap(), _HeartbeatServer_source = new WeakMap(), _HeartbeatServer_instances = new WeakSet(), _HeartbeatServer_establish = function _HeartbeatServer_establish() {
// Establish communication channel if a request is received
const listener = __classPrivateFieldGet(this, _HeartbeatServer_instances, "m", _HeartbeatServer_receiveStatusRequest).call(this, (request) => {
if (!request.source) {
return;
}
listener();
clearTimeout(timeout);
__classPrivateFieldGet(this, _HeartbeatServer_options, "f").onEstablish(request.origin);
__classPrivateFieldGet(this, _HeartbeatServer_instances, "m", _HeartbeatServer_maintain).call(this, request.origin, request.source);
});
// Init timeout
const timeout = setTimeout(() => {
listener();
__classPrivateFieldGet(this, _HeartbeatServer_options, "f").onEstablishTimeout();
}, __classPrivateFieldGet(this, _HeartbeatServer_options, "f").establishTimeout);
}, _HeartbeatServer_maintain = function _HeartbeatServer_maintain(origin, source) {
let interval;
let timeout;
let pending = [];
// Consume a pending entry if it exists
const consume = (id) => {
const index = pending.findIndex((entry) => entry.id === id);
if (index > -1) {
pending.splice(index, 1);
}
return index > -1;
};
// Create new pending entry that's waiting for a response
const create = () => {
const id = __classPrivateFieldGet(this, _HeartbeatServer_options, "f").crypto.randomUUID();
const time = new Date().getTime();
// Cleanup ids outside disconnect window
pending = pending.filter((entry) => time - __classPrivateFieldGet(this, _HeartbeatServer_options, "f").disconnectTimeout > entry.time);
// Insert and return new id
pending.push({ id, time });
return id;
};
// Clear existing timeout (if any) and create a new one
const resetTimeout = () => {
clearTimeout(timeout);
timeout = setTimeout(() => {
listener();
clearInterval(interval);
__classPrivateFieldGet(this, _HeartbeatServer_options, "f").onDisconnect();
}, __classPrivateFieldGet(this, _HeartbeatServer_options, "f").disconnectTimeout);
};
// Reset disconnect timeout if a response is received to an id within disconnect window
const listener = __classPrivateFieldGet(this, _HeartbeatServer_instances, "m", _HeartbeatServer_receiveStatusRequest).call(this, (response) => {
if (response.origin === origin && consume(response.data.id)) {
resetTimeout();
}
});
// Init timeout and start sending messages
resetTimeout();
interval = setInterval(() => __classPrivateFieldGet(this, _HeartbeatServer_instances, "m", _HeartbeatServer_sendReadyResponse).call(this, create()), __classPrivateFieldGet(this, _HeartbeatServer_options, "f").statusPollingRate);
}, _HeartbeatServer_receiveStatusRequest = function _HeartbeatServer_receiveStatusRequest(handler) {
const listener = (event) => {
if (isJsonRpcRequest(event.data) &&
event.data.method === "icrc29_status") {
handler(event);
}
};
__classPrivateFieldGet(this, _HeartbeatServer_options, "f").window.addEventListener("message", listener);
return () => __classPrivateFieldGet(this, _HeartbeatServer_options, "f").window.removeEventListener("message", listener);
}, _HeartbeatServer_sendReadyResponse = function _HeartbeatServer_sendReadyResponse(id) {
__classPrivateFieldGet(this, _HeartbeatServer_options, "f").signerWindow.postMessage({ jsonrpc: "2.0", id, method: "icrc29_status" }, "*");
};
//# sourceMappingURL=heartbeatClient.js.map