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PR-URL: #53034 Reviewed-By: Matthew Aitken <[email protected]> Reviewed-By: Marco Ippolito <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Trivikram Kamat <[email protected]>
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,123 @@ | ||
'use strict' | ||
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const util = require('../core/util') | ||
const { InvalidArgumentError, RequestAbortedError } = require('../core/errors') | ||
const DecoratorHandler = require('../handler/decorator-handler') | ||
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class DumpHandler extends DecoratorHandler { | ||
#maxSize = 1024 * 1024 | ||
#abort = null | ||
#dumped = false | ||
#aborted = false | ||
#size = 0 | ||
#reason = null | ||
#handler = null | ||
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constructor ({ maxSize }, handler) { | ||
super(handler) | ||
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if (maxSize != null && (!Number.isFinite(maxSize) || maxSize < 1)) { | ||
throw new InvalidArgumentError('maxSize must be a number greater than 0') | ||
} | ||
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this.#maxSize = maxSize ?? this.#maxSize | ||
this.#handler = handler | ||
} | ||
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onConnect (abort) { | ||
this.#abort = abort | ||
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this.#handler.onConnect(this.#customAbort.bind(this)) | ||
} | ||
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#customAbort (reason) { | ||
this.#aborted = true | ||
this.#reason = reason | ||
} | ||
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// TODO: will require adjustment after new hooks are out | ||
onHeaders (statusCode, rawHeaders, resume, statusMessage) { | ||
const headers = util.parseHeaders(rawHeaders) | ||
const contentLength = headers['content-length'] | ||
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if (contentLength != null && contentLength > this.#maxSize) { | ||
throw new RequestAbortedError( | ||
`Response size (${contentLength}) larger than maxSize (${ | ||
this.#maxSize | ||
})` | ||
) | ||
} | ||
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if (this.#aborted) { | ||
return true | ||
} | ||
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return this.#handler.onHeaders( | ||
statusCode, | ||
rawHeaders, | ||
resume, | ||
statusMessage | ||
) | ||
} | ||
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onError (err) { | ||
if (this.#dumped) { | ||
return | ||
} | ||
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err = this.#reason ?? err | ||
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this.#handler.onError(err) | ||
} | ||
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onData (chunk) { | ||
this.#size = this.#size + chunk.length | ||
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if (this.#size >= this.#maxSize) { | ||
this.#dumped = true | ||
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if (this.#aborted) { | ||
this.#handler.onError(this.#reason) | ||
} else { | ||
this.#handler.onComplete([]) | ||
} | ||
} | ||
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return true | ||
} | ||
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onComplete (trailers) { | ||
if (this.#dumped) { | ||
return | ||
} | ||
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if (this.#aborted) { | ||
this.#handler.onError(this.reason) | ||
return | ||
} | ||
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this.#handler.onComplete(trailers) | ||
} | ||
} | ||
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function createDumpInterceptor ( | ||
{ maxSize: defaultMaxSize } = { | ||
maxSize: 1024 * 1024 | ||
} | ||
) { | ||
return dispatch => { | ||
return function Intercept (opts, handler) { | ||
const { dumpMaxSize = defaultMaxSize } = | ||
opts | ||
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const dumpHandler = new DumpHandler( | ||
{ maxSize: dumpMaxSize }, | ||
handler | ||
) | ||
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return dispatch(opts, dumpHandler) | ||
} | ||
} | ||
} | ||
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module.exports = createDumpInterceptor |
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