53 lines
No EOL
1.2 KiB
Dart
53 lines
No EOL
1.2 KiB
Dart
library angel_websocket;
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import 'dart:math';
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String _randomString(int length) {
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var rand = new Random();
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var codeUnits = new List.generate(
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length,
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(index){
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return rand.nextInt(33)+89;
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}
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);
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return new String.fromCharCodes(codeUnits);
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}
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/// A WebSocket message sent from server to client, or vice-versa.
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class AngelMessage {
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String id;
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String service;
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String method;
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Map body;
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AngelMessage(String this.service, String this.method,
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{Map this.body: const {}}) {
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id = _randomString(32);
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}
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/// Parses a Map into an AngelMessage.
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AngelMessage.fromMap(Map msg) {
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bool invalid = !(msg['service'] is String) ||
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(msg['service'] is String && msg['service'].isEmpty);
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invalid = invalid || !(msg['method'] is String) ||
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(msg['method'] is String && msg['method'].isEmpty);
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if (invalid) {
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throw new Exception("Invalid message supplied.");
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} else {
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this.id = _randomString(32);
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this.service = msg['service'];
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this.method = msg['method'];
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this.body = msg['body'] ?? {};
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}
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}
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Map toMap() {
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return {
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'id': id,
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'service': service,
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'method': method,
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'body': body
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};
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}
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} |