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feat: introduce ZitiDummyWebSocketWrapper (#258)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| /* | ||
| Copyright NetFoundry, Inc. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| https://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
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| import EventEmitter from 'events'; | ||
| import { isEqual, isUndefined } from 'lodash-es'; | ||
|
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| /** | ||
| * ZitiDummyWebSocketWrapper: | ||
| * | ||
| */ | ||
| class ZitiDummyWebSocketWrapper extends EventEmitter { | ||
|
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| /** | ||
| * Create a new `ZitiDummyWebSocketWrapper`. | ||
| * | ||
| * @param {(String|url.URL)} address The URL to which to connect | ||
| */ | ||
| constructor(address) { | ||
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| super(); | ||
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| this.address = address; | ||
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| setTimeout(async function(self) { | ||
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| await window.zitiBrowzerRuntime.awaitInitializationComplete(); | ||
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| let serviceName; | ||
| var url = new URL( self.address ); | ||
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| if (isEqual(url.hostname, zitiBrowzerRuntime.zitiConfig.browzer.bootstrapper.self.host)) { // if targeting the bootstrapper | ||
| serviceName = zitiBrowzerRuntime.zitiConfig.browzer.bootstrapper.target.service; | ||
| } else { | ||
| serviceName = await zitiBrowzerRuntime.zitiContext.shouldRouteOverZiti( self.address ); | ||
| } | ||
|
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| if (isUndefined(serviceName)) { // If we have no serviceConfig associated with the address, do not intercept | ||
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| self.innerWebSocket = new window._ziti_realWebSocket(self.address); | ||
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| } else { | ||
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| let opts = {} | ||
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| opts.serviceName = serviceName; | ||
| opts.configHostAndPort = await zitiBrowzerRuntime.zitiContext.getConfigHostAndPortByServiceName (serviceName); | ||
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| self.innerWebSocket = new zitiBrowzerRuntime.zitiContext.zitiWebSocketWrapper(self.address, undefined, opts); | ||
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| } | ||
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| self.innerWebSocket.addEventListener('open', (event) => { | ||
| if (self.onopen) { | ||
| self.onopen(event); | ||
| } | ||
| self.emit(event); | ||
| }); | ||
|
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| self.innerWebSocket.addEventListener('close', (event) => { | ||
| if (self.onclose) { | ||
| self.onclose(event); | ||
| } | ||
| self.emit(event); | ||
| }); | ||
|
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| self.innerWebSocket.addEventListener('error', (event) => { | ||
| if (self.onerror) { | ||
| self.onerror(event); | ||
| } | ||
| self.emit(event); | ||
| }); | ||
|
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| self.innerWebSocket.addEventListener('message', (event) => { | ||
| if (self.onmessage) { | ||
| self.onmessage(event); | ||
| } | ||
| self.emit(event); | ||
| }); | ||
|
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| }, 1, this); | ||
|
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| } | ||
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| /** | ||
| * Remain in lazy-sleepy loop until inner WebSocket is present. | ||
| * | ||
| */ | ||
| awaitInnerWebSocketPresent() { | ||
| let self = this; | ||
| return new Promise((resolve) => { | ||
| (function waitForInnerWebSocketPresent() { | ||
| if (!self.innerWebSocket) { | ||
| setTimeout(waitForInnerWebSocketPresent, 5); | ||
| } else { | ||
| if (self.innerWebSocket.READYSTATE !== self.innerWebSocket.OPEN) { | ||
| setTimeout(waitForInnerWebSocketPresent, 5); | ||
| } else { | ||
| return resolve(); | ||
| } | ||
| } | ||
| })(); | ||
| }); | ||
| } | ||
|
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| /** | ||
| * | ||
| * @param {*} code | ||
| * @param {*} data | ||
| */ | ||
| async close(code, data) { | ||
| await this.awaitInnerWebSocketPresent(); | ||
| this.innerWebSocket.close(code, data); | ||
| } | ||
|
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| /** | ||
| * | ||
| * @param {*} data | ||
| */ | ||
| async send(data) { | ||
| await this.awaitInnerWebSocketPresent(); | ||
| this.innerWebSocket.send(data); | ||
| } | ||
|
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| } | ||
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| export { | ||
| ZitiDummyWebSocketWrapper | ||
| }; |
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