Function writeH1

lib/dispatcher/client-h1.js:1142–1326

* @param {import('./client.js')} client * @param {import('../core/request.js')} request * @returns

(client, request)

 * @returns
 */
function writeH1 (client, request) {
  const { method, path, host, upgrade, blocking, reset } = request

  let { body, headers, contentLength } = request

  // https://tools.ietf.org/html/rfc7231#section-4.3.1
  // https://tools.ietf.org/html/rfc7231#section-4.3.2
  // https://tools.ietf.org/html/rfc7231#section-4.3.5

  // Sending a payload body on a request that does not
  // expect it can cause undefined behavior on some
  // servers and corrupt connection state. Do not
  // re-use the connection for further requests.

  const expectsPayload = (
    method === 'PUT' ||
    method === 'POST' ||
    method === 'PATCH' ||
    method === 'QUERY' ||
    method === 'PROPFIND' ||
    method === 'PROPPATCH'
  )

  if (util.isFormDataLike(body)) {
    if (!extractBody) {
      extractBody = require('../web/fetch/body.js').extractBody
    }

    const [bodyStream, contentType] = extractBody(body)
    if (request.contentType == null) {
      headers.push('content-type', contentType)
    }
    body = bodyStream.stream
    contentLength = bodyStream.length
  } else if (util.isBlobLike(body) && request.contentType == null && body.type) {
    headers.push('content-type', body.type)
  }

  if (body && typeof body.read === 'function') {
    // Try to read EOF in order to get length.
    body.read(0)
  }

  const bodyLength = util.bodyLength(body)

  contentLength = bodyLength ?? contentLength

  if (contentLength === null) {
    contentLength = request.contentLength
  }

  if (contentLength === 0 && !expectsPayload) {
    // https://tools.ietf.org/html/rfc7230#section-3.3.2
    // A user agent SHOULD NOT send a Content-Length header field when
    // the request message does not contain a payload body and the method
    // semantics do not anticipate such a body.

    contentLength = null