diff options
Diffstat (limited to 'node_modules/undici/lib/api/api-request.js')
-rw-r--r-- | node_modules/undici/lib/api/api-request.js | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/node_modules/undici/lib/api/api-request.js b/node_modules/undici/lib/api/api-request.js new file mode 100644 index 0000000..d4281ce --- /dev/null +++ b/node_modules/undici/lib/api/api-request.js @@ -0,0 +1,180 @@ +'use strict' + +const Readable = require('./readable') +const { + InvalidArgumentError, + RequestAbortedError +} = require('../core/errors') +const util = require('../core/util') +const { getResolveErrorBodyCallback } = require('./util') +const { AsyncResource } = require('async_hooks') +const { addSignal, removeSignal } = require('./abort-signal') + +class RequestHandler extends AsyncResource { + constructor (opts, callback) { + if (!opts || typeof opts !== 'object') { + throw new InvalidArgumentError('invalid opts') + } + + const { signal, method, opaque, body, onInfo, responseHeaders, throwOnError, highWaterMark } = opts + + try { + if (typeof callback !== 'function') { + throw new InvalidArgumentError('invalid callback') + } + + if (highWaterMark && (typeof highWaterMark !== 'number' || highWaterMark < 0)) { + throw new InvalidArgumentError('invalid highWaterMark') + } + + if (signal && typeof signal.on !== 'function' && typeof signal.addEventListener !== 'function') { + throw new InvalidArgumentError('signal must be an EventEmitter or EventTarget') + } + + if (method === 'CONNECT') { + throw new InvalidArgumentError('invalid method') + } + + if (onInfo && typeof onInfo !== 'function') { + throw new InvalidArgumentError('invalid onInfo callback') + } + + super('UNDICI_REQUEST') + } catch (err) { + if (util.isStream(body)) { + util.destroy(body.on('error', util.nop), err) + } + throw err + } + + this.responseHeaders = responseHeaders || null + this.opaque = opaque || null + this.callback = callback + this.res = null + this.abort = null + this.body = body + this.trailers = {} + this.context = null + this.onInfo = onInfo || null + this.throwOnError = throwOnError + this.highWaterMark = highWaterMark + + if (util.isStream(body)) { + body.on('error', (err) => { + this.onError(err) + }) + } + + addSignal(this, signal) + } + + onConnect (abort, context) { + if (!this.callback) { + throw new RequestAbortedError() + } + + this.abort = abort + this.context = context + } + + onHeaders (statusCode, rawHeaders, resume, statusMessage) { + const { callback, opaque, abort, context, responseHeaders, highWaterMark } = this + + const headers = responseHeaders === 'raw' ? util.parseRawHeaders(rawHeaders) : util.parseHeaders(rawHeaders) + + if (statusCode < 200) { + if (this.onInfo) { + this.onInfo({ statusCode, headers }) + } + return + } + + const parsedHeaders = responseHeaders === 'raw' ? util.parseHeaders(rawHeaders) : headers + const contentType = parsedHeaders['content-type'] + const body = new Readable({ resume, abort, contentType, highWaterMark }) + + this.callback = null + this.res = body + if (callback !== null) { + if (this.throwOnError && statusCode >= 400) { + this.runInAsyncScope(getResolveErrorBodyCallback, null, + { callback, body, contentType, statusCode, statusMessage, headers } + ) + } else { + this.runInAsyncScope(callback, null, null, { + statusCode, + headers, + trailers: this.trailers, + opaque, + body, + context + }) + } + } + } + + onData (chunk) { + const { res } = this + return res.push(chunk) + } + + onComplete (trailers) { + const { res } = this + + removeSignal(this) + + util.parseHeaders(trailers, this.trailers) + + res.push(null) + } + + onError (err) { + const { res, callback, body, opaque } = this + + removeSignal(this) + + if (callback) { + // TODO: Does this need queueMicrotask? + this.callback = null + queueMicrotask(() => { + this.runInAsyncScope(callback, null, err, { opaque }) + }) + } + + if (res) { + this.res = null + // Ensure all queued handlers are invoked before destroying res. + queueMicrotask(() => { + util.destroy(res, err) + }) + } + + if (body) { + this.body = null + util.destroy(body, err) + } + } +} + +function request (opts, callback) { + if (callback === undefined) { + return new Promise((resolve, reject) => { + request.call(this, opts, (err, data) => { + return err ? reject(err) : resolve(data) + }) + }) + } + + try { + this.dispatch(opts, new RequestHandler(opts, callback)) + } catch (err) { + if (typeof callback !== 'function') { + throw err + } + const opaque = opts && opts.opaque + queueMicrotask(() => callback(err, { opaque })) + } +} + +module.exports = request +module.exports.RequestHandler = RequestHandler |