9506453557

Committed 13 Jun 2024 08:37PM UTC coverage: 86.258% (-0.2%) from 86.495%

Build # 9506453557

Build Type

Pull #704

github

Committed by

aricart

Commit Message

[FIX] simpler way to noResolve

Pull Request Pull Request #704: [FIX] simpler way to noResolve

Run Details

1875 of 2241 branches covered (83.67%)

Branch coverage included in aggregate %.

4 of 5 new or added lines in 3 files covered. (80.0%)

31 existing lines in 5 files now uncovered.

11187 of 12902 relevant lines covered (86.71%)

870749.26 hits per line

Source File
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81.43

/nats-base-client/transport.ts

/*
 * Copyright 2020-2021 The NATS Authors
 * 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
 *
 * http://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.
 */
import { TD } from "./encoders.ts";

import {
  ConnectionOptions,
  DEFAULT_PORT,
  DnsResolveFn,
  Server,
  URLParseFn,
} from "./core.ts";
import { DataBuffer } from "./databuffer.ts";

let transportConfig: TransportFactory;
export function setTransportFactory(config: TransportFactory): void {
  transportConfig = config;
}

export function defaultPort(): number {
  return transportConfig !== undefined &&
      transportConfig.defaultPort !== undefined
    ? transportConfig.defaultPort
    : DEFAULT_PORT;
}

export function getUrlParseFn(): URLParseFn | undefined {
  return transportConfig !== undefined && transportConfig.urlParseFn
    ? transportConfig.urlParseFn
    : undefined;
}

export function newTransport(): Transport {
  if (!transportConfig || typeof transportConfig.factory !== "function") {
    throw new Error("transport fn is not set");
  }
  return transportConfig.factory();
}

export function getResolveFn(): DnsResolveFn | undefined {
  return transportConfig !== undefined && transportConfig.dnsResolveFn
    ? transportConfig.dnsResolveFn
    : undefined;
}

export interface TransportFactory {
  factory?: () => Transport;
  defaultPort?: number;
  urlParseFn?: URLParseFn;
  dnsResolveFn?: DnsResolveFn;
}

export interface Transport extends AsyncIterable<Uint8Array> {
  readonly isClosed: boolean;
  readonly lang: string;
  readonly version: string;
  readonly closeError?: Error;

  connect(
    server: Server,
    opts: ConnectionOptions,
  ): Promise<void>;

  [Symbol.asyncIterator](): AsyncIterableIterator<Uint8Array>;

  isEncrypted(): boolean;

  send(frame: Uint8Array): void;

  close(err?: Error): Promise<void>;

  disconnect(): void;

  closed(): Promise<void | Error>;

  // this is here for websocket implementations as some implementations
  // (firefox) throttle connections that then resolve later
  discard(): void;
}

export const CR_LF = "\r\n";
export const CR_LF_LEN = CR_LF.length;
export const CRLF = DataBuffer.fromAscii(CR_LF);
export const CR = new Uint8Array(CRLF)[0]; // 13
export const LF = new Uint8Array(CRLF)[1]; // 10
export function protoLen(ba: Uint8Array): number {
  for (let i = 0; i < ba.length; i++) {
    const n = i + 1;
    if (ba.byteLength > n && ba[i] === CR && ba[n] === LF) {
      return n + 1;
    }
  }
  return 0;
}

export function extractProtocolMessage(a: Uint8Array): string {
  // protocol messages are ascii, so Uint8Array
  const len = protoLen(a);
  if (len > 0) {
    const ba = new Uint8Array(a);
    const out = ba.slice(0, len);
    return TD.decode(out);
  }
  return "";
}

1	/*	1✔
2	* Copyright 2020-2021 The NATS Authors
3	* Licensed under the Apache License, Version 2.0 (the "License");
4	* you may not use this file except in compliance with the License.
5	* You may obtain a copy of the License at
6	*
7	* http://www.apache.org/licenses/LICENSE-2.0
8	*
9	* Unless required by applicable law or agreed to in writing, software
10	* distributed under the License is distributed on an "AS IS" BASIS,
11	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12	* See the License for the specific language governing permissions and
13	* limitations under the License.
14	*/	53✔
15	import { TD } from "./encoders.ts";	53✔
16
17	import {	53✔
18	ConnectionOptions,
19	DEFAULT_PORT,	53✔
20	DnsResolveFn,
21	Server,
22	URLParseFn,
23	} from "./core.ts";	53✔
24	import { DataBuffer } from "./databuffer.ts";	53✔
25
26	let transportConfig: TransportFactory;	53✔
27	export function setTransportFactory(config: TransportFactory): void {	53✔
28	transportConfig = config;	861✔
29	}	861✔
30
31	export function defaultPort(): number {	53✔
32	return transportConfig !== undefined &&	✔
33	transportConfig.defaultPort !== undefined	×
34	? transportConfig.defaultPort	×
35	: DEFAULT_PORT;	×
36	}	866✔
37
38	export function getUrlParseFn(): URLParseFn \| undefined {	53✔
39	return transportConfig !== undefined && transportConfig.urlParseFn	1,764✔
40	? transportConfig.urlParseFn	1,764✔
41	: undefined;	1,764✔
42	}	1,764✔
43
44	export function newTransport(): Transport {	53✔
45	if (!transportConfig \|\| typeof transportConfig.factory !== "function") {	×
46	throw new Error("transport fn is not set");	×
47	}	×
48	return transportConfig.factory();	1,019✔
49	}	1,019✔
50
51	export function getResolveFn(): DnsResolveFn \| undefined {	53✔
UNCOV 52	return transportConfig !== undefined && transportConfig.dnsResolveFn	×
UNCOV 53	? transportConfig.dnsResolveFn	×
UNCOV 54	: undefined;	×
55	}	1,003✔
56
57	export interface TransportFactory {
58	factory?: () => Transport;
59	defaultPort?: number;
60	urlParseFn?: URLParseFn;
61	dnsResolveFn?: DnsResolveFn;
62	}
63
64	export interface Transport extends AsyncIterable<Uint8Array> {
65	readonly isClosed: boolean;
66	readonly lang: string;
67	readonly version: string;
68	readonly closeError?: Error;
69
70	connect(
71	server: Server,
72	opts: ConnectionOptions,
73	): Promise<void>;
74
75	[Symbol.asyncIterator](): AsyncIterableIterator<Uint8Array>;
76
77	isEncrypted(): boolean;
78
79	send(frame: Uint8Array): void;
80
81	close(err?: Error): Promise<void>;
82
83	disconnect(): void;
84
85	closed(): Promise<void \| Error>;
86
87	// this is here for websocket implementations as some implementations
88	// (firefox) throttle connections that then resolve later
89	discard(): void;
90	}
91
92	export const CR_LF = "\r\n";	53✔
93	export const CR_LF_LEN = CR_LF.length;	53✔
94	export const CRLF = DataBuffer.fromAscii(CR_LF);	53✔
95	export const CR = new Uint8Array(CRLF)[0]; // 13	53✔
96	export const LF = new Uint8Array(CRLF)[1]; // 10	53✔
97	export function protoLen(ba: Uint8Array): number {	53✔
98	for (let i = 0; i < ba.length; i++) {	919✔
99	const n = i + 1;	355,081✔
100	if (ba.byteLength > n && ba[i] === CR && ba[n] === LF) {	355,081✔
101	return n + 1;	355,945✔
102	}	355,945✔
103	}	355,081✔
104	return 0;	921✔
105	}	919✔
106
107	export function extractProtocolMessage(a: Uint8Array): string {	53✔
108	// protocol messages are ascii, so Uint8Array	918✔
109	const len = protoLen(a);	918✔
110	if (len > 0) {	918✔
111	const ba = new Uint8Array(a);	1,782✔
112	const out = ba.slice(0, len);	1,782✔
113	return TD.decode(out);	1,782✔
114	}	1,782✔
115	return "";	919✔
116	}	918✔

nats-io / nats.deno / 9506453557

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