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Blob: src/node/internal/streams_add_abort_signal.ts
| 1 | // Copyright (c) 2017-2022 Cloudflare, Inc. |
| 2 | // Licensed under the Apache 2.0 license found in the LICENSE file or at: |
| 3 | // https://opensource.org/licenses/Apache-2.0 |
| 4 | // |
| 5 | // Copyright Joyent, Inc. and other Node contributors. |
| 6 | // |
| 7 | // Permission is hereby granted, free of charge, to any person obtaining a |
| 8 | // copy of this software and associated documentation files (the |
| 9 | // "Software"), to deal in the Software without restriction, including |
| 10 | // without limitation the rights to use, copy, modify, merge, publish, |
| 11 | // distribute, sublicense, and/or sell copies of the Software, and to permit |
| 12 | // persons to whom the Software is furnished to do so, subject to the |
| 13 | // following conditions: |
| 14 | // |
| 15 | // The above copyright notice and this permission notice shall be included |
| 16 | // in all copies or substantial portions of the Software. |
| 17 | // |
| 18 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 19 | // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 20 | // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN |
| 21 | // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| 22 | // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 23 | // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 24 | // USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 25 | |
| 26 | import { |
| 27 | AbortError, |
| 28 | ERR_INVALID_ARG_TYPE, |
| 29 | } from 'node-internal:internal_errors'; |
| 30 | |
| 31 | import { |
| 32 | isNodeStream, |
| 33 | isWebStream, |
| 34 | kControllerErrorFunction, |
| 35 | } from 'node-internal:streams_util'; |
| 36 | |
| 37 | import { eos } from 'node-internal:streams_end_of_stream'; |
| 38 | import type { Readable } from 'node-internal:streams_readable'; |
| 39 | import type { Writable } from 'node-internal:streams_writable'; |
| 40 | import type { Transform } from 'node-internal:streams_transform'; |
| 41 | import { addAbortListener } from 'node-internal:events'; |
| 42 | |
| 43 | // This method is inlined here for readable-stream |
| 44 | // It also does not allow for signal to not exist on the stream |
| 45 | // https://github.com/nodejs/node/pull/36061#discussion_r533718029 |
| 46 | function validateAbortSignal( |
| 47 | signal: unknown, |
| 48 | name: string |
| 49 | ): asserts signal is AbortSignal { |
| 50 | if (signal == null || typeof signal !== 'object' || !('aborted' in signal)) { |
| 51 | throw new ERR_INVALID_ARG_TYPE(name, 'AbortSignal', signal); |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | type StreamType = |
| 56 | | Readable |
| 57 | | Writable |
| 58 | | Transform |
| 59 | | ReadableStream |
| 60 | | WritableStream; |
| 61 | |
| 62 | export function addAbortSignal<T extends StreamType>( |
| 63 | signal: unknown, |
| 64 | stream: T |
| 65 | ): T { |
| 66 | validateAbortSignal(signal, 'signal'); |
| 67 | if (!isNodeStream(stream) && !isWebStream(stream)) { |
| 68 | throw new ERR_INVALID_ARG_TYPE( |
| 69 | 'stream', |
| 70 | ['ReadableStream', 'WritableStream', 'Stream'], |
| 71 | stream |
| 72 | ); |
| 73 | } |
| 74 | return addAbortSignalNoValidate(signal, stream); |
| 75 | } |
| 76 | |
| 77 | export function addAbortSignalNoValidate<T extends StreamType>( |
| 78 | signal: AbortSignal | null | undefined, |
| 79 | stream: T |
| 80 | ): T { |
| 81 | if (signal == null || typeof signal !== 'object' || !('aborted' in signal)) { |
| 82 | return stream; |
| 83 | } |
| 84 | const onAbort = isNodeStream(stream) |
| 85 | ? (): void => { |
| 86 | stream.destroy(new AbortError(undefined, { cause: signal.reason })); |
| 87 | } |
| 88 | : (): void => { |
| 89 | ( |
| 90 | stream as ReadableStream & { |
| 91 | [kControllerErrorFunction]: (err: Error) => void; |
| 92 | } |
| 93 | )[kControllerErrorFunction]( |
| 94 | new AbortError(undefined, { cause: signal.reason }) |
| 95 | ); |
| 96 | }; |
| 97 | if (signal.aborted) { |
| 98 | onAbort(); |
| 99 | } else { |
| 100 | const disposable = addAbortListener(signal, onAbort); |
| 101 | eos( |
| 102 | stream as Readable | Writable | Transform, |
| 103 | disposable[Symbol.dispose] as () => void |
| 104 | ); |
| 105 | } |
| 106 | return stream; |
| 107 | } |