diff options
Diffstat (limited to 'g4f/Provider/npm/node_modules/undici/lib/api/readable.js')
-rw-r--r-- | g4f/Provider/npm/node_modules/undici/lib/api/readable.js | 307 |
1 files changed, 0 insertions, 307 deletions
diff --git a/g4f/Provider/npm/node_modules/undici/lib/api/readable.js b/g4f/Provider/npm/node_modules/undici/lib/api/readable.js deleted file mode 100644 index d106568c..00000000 --- a/g4f/Provider/npm/node_modules/undici/lib/api/readable.js +++ /dev/null @@ -1,307 +0,0 @@ -// Ported from https://github.com/nodejs/undici/pull/907 - -'use strict' - -const assert = require('assert') -const { Readable } = require('stream') -const { RequestAbortedError, NotSupportedError, InvalidArgumentError } = require('../core/errors') -const util = require('../core/util') -const { ReadableStreamFrom, toUSVString } = require('../core/util') - -let Blob - -const kConsume = Symbol('kConsume') -const kReading = Symbol('kReading') -const kBody = Symbol('kBody') -const kAbort = Symbol('abort') -const kContentType = Symbol('kContentType') - -module.exports = class BodyReadable extends Readable { - constructor ({ - resume, - abort, - contentType = '', - highWaterMark = 64 * 1024 // Same as nodejs fs streams. - }) { - super({ - autoDestroy: true, - read: resume, - highWaterMark - }) - - this._readableState.dataEmitted = false - - this[kAbort] = abort - this[kConsume] = null - this[kBody] = null - this[kContentType] = contentType - - // Is stream being consumed through Readable API? - // This is an optimization so that we avoid checking - // for 'data' and 'readable' listeners in the hot path - // inside push(). - this[kReading] = false - } - - destroy (err) { - if (this.destroyed) { - // Node < 16 - return this - } - - if (!err && !this._readableState.endEmitted) { - err = new RequestAbortedError() - } - - if (err) { - this[kAbort]() - } - - return super.destroy(err) - } - - emit (ev, ...args) { - if (ev === 'data') { - // Node < 16.7 - this._readableState.dataEmitted = true - } else if (ev === 'error') { - // Node < 16 - this._readableState.errorEmitted = true - } - return super.emit(ev, ...args) - } - - on (ev, ...args) { - if (ev === 'data' || ev === 'readable') { - this[kReading] = true - } - return super.on(ev, ...args) - } - - addListener (ev, ...args) { - return this.on(ev, ...args) - } - - off (ev, ...args) { - const ret = super.off(ev, ...args) - if (ev === 'data' || ev === 'readable') { - this[kReading] = ( - this.listenerCount('data') > 0 || - this.listenerCount('readable') > 0 - ) - } - return ret - } - - removeListener (ev, ...args) { - return this.off(ev, ...args) - } - - push (chunk) { - if (this[kConsume] && chunk !== null && this.readableLength === 0) { - consumePush(this[kConsume], chunk) - return this[kReading] ? super.push(chunk) : true - } - return super.push(chunk) - } - - // https://fetch.spec.whatwg.org/#dom-body-text - async text () { - return consume(this, 'text') - } - - // https://fetch.spec.whatwg.org/#dom-body-json - async json () { - return consume(this, 'json') - } - - // https://fetch.spec.whatwg.org/#dom-body-blob - async blob () { - return consume(this, 'blob') - } - - // https://fetch.spec.whatwg.org/#dom-body-arraybuffer - async arrayBuffer () { - return consume(this, 'arrayBuffer') - } - - // https://fetch.spec.whatwg.org/#dom-body-formdata - async formData () { - // TODO: Implement. - throw new NotSupportedError() - } - - // https://fetch.spec.whatwg.org/#dom-body-bodyused - get bodyUsed () { - return util.isDisturbed(this) - } - - // https://fetch.spec.whatwg.org/#dom-body-body - get body () { - if (!this[kBody]) { - this[kBody] = ReadableStreamFrom(this) - if (this[kConsume]) { - // TODO: Is this the best way to force a lock? - this[kBody].getReader() // Ensure stream is locked. - assert(this[kBody].locked) - } - } - return this[kBody] - } - - async dump (opts) { - let limit = opts && Number.isFinite(opts.limit) ? opts.limit : 262144 - const signal = opts && opts.signal - const abortFn = () => { - this.destroy() - } - let signalListenerCleanup - if (signal) { - if (typeof signal !== 'object' || !('aborted' in signal)) { - throw new InvalidArgumentError('signal must be an AbortSignal') - } - util.throwIfAborted(signal) - signalListenerCleanup = util.addAbortListener(signal, abortFn) - } - try { - for await (const chunk of this) { - util.throwIfAborted(signal) - limit -= Buffer.byteLength(chunk) - if (limit < 0) { - return - } - } - } catch { - util.throwIfAborted(signal) - } finally { - if (typeof signalListenerCleanup === 'function') { - signalListenerCleanup() - } else if (signalListenerCleanup) { - signalListenerCleanup[Symbol.dispose]() - } - } - } -} - -// https://streams.spec.whatwg.org/#readablestream-locked -function isLocked (self) { - // Consume is an implicit lock. - return (self[kBody] && self[kBody].locked === true) || self[kConsume] -} - -// https://fetch.spec.whatwg.org/#body-unusable -function isUnusable (self) { - return util.isDisturbed(self) || isLocked(self) -} - -async function consume (stream, type) { - if (isUnusable(stream)) { - throw new TypeError('unusable') - } - - assert(!stream[kConsume]) - - return new Promise((resolve, reject) => { - stream[kConsume] = { - type, - stream, - resolve, - reject, - length: 0, - body: [] - } - - stream - .on('error', function (err) { - consumeFinish(this[kConsume], err) - }) - .on('close', function () { - if (this[kConsume].body !== null) { - consumeFinish(this[kConsume], new RequestAbortedError()) - } - }) - - process.nextTick(consumeStart, stream[kConsume]) - }) -} - -function consumeStart (consume) { - if (consume.body === null) { - return - } - - const { _readableState: state } = consume.stream - - for (const chunk of state.buffer) { - consumePush(consume, chunk) - } - - if (state.endEmitted) { - consumeEnd(this[kConsume]) - } else { - consume.stream.on('end', function () { - consumeEnd(this[kConsume]) - }) - } - - consume.stream.resume() - - while (consume.stream.read() != null) { - // Loop - } -} - -function consumeEnd (consume) { - const { type, body, resolve, stream, length } = consume - - try { - if (type === 'text') { - resolve(toUSVString(Buffer.concat(body))) - } else if (type === 'json') { - resolve(JSON.parse(Buffer.concat(body))) - } else if (type === 'arrayBuffer') { - const dst = new Uint8Array(length) - - let pos = 0 - for (const buf of body) { - dst.set(buf, pos) - pos += buf.byteLength - } - - resolve(dst.buffer) - } else if (type === 'blob') { - if (!Blob) { - Blob = require('buffer').Blob - } - resolve(new Blob(body, { type: stream[kContentType] })) - } - - consumeFinish(consume) - } catch (err) { - stream.destroy(err) - } -} - -function consumePush (consume, chunk) { - consume.length += chunk.length - consume.body.push(chunk) -} - -function consumeFinish (consume, err) { - if (consume.body === null) { - return - } - - if (err) { - consume.reject(err) - } else { - consume.resolve() - } - - consume.type = null - consume.stream = null - consume.resolve = null - consume.reject = null - consume.length = 0 - consume.body = null -} |