Function initHttpReader

index.cjs:2746–2783

(httpReader, sendRequest, getRequestData)

}

async function initHttpReader(httpReader, sendRequest, getRequestData) {
	const {
		url,
		preventHeadRequest,
		useRangeHeader,
		forceRangeRequests,
		combineSizeEocd
	} = httpReader;
	if (isHttpFamily(url) && (useRangeHeader || forceRangeRequests) && (typeof preventHeadRequest == "undefined" || preventHeadRequest)) {
		const response = await sendRequest(HTTP_METHOD_GET, httpReader, getRangeHeaders(httpReader, combineSizeEocd ? -END_OF_CENTRAL_DIR_LENGTH : undefined));
		const acceptRanges = response.headers.get(HTTP_HEADER_ACCEPT_RANGES);
		if (!forceRangeRequests && (!acceptRanges || acceptRanges.toLowerCase() != HTTP_RANGE_UNIT)) {
			throw new Error(ERR_HTTP_RANGE);
		} else {
			if (combineSizeEocd) {
				httpReader.eocdCache = new Uint8Array(await response.arrayBuffer());
			}
			let contentSize;
			const contentRangeHeader = response.headers.get(HTTP_HEADER_CONTENT_RANGE);
			if (contentRangeHeader) {
				const splitHeader = contentRangeHeader.trim().split(/\s*\/\s*/);
				if (splitHeader.length) {
					const headerValue = splitHeader[1];
					if (headerValue && headerValue != "*") {
						contentSize = Number(headerValue);
					}
				}
			}
			if (contentSize === UNDEFINED_VALUE) {
				await getContentLength(httpReader, sendRequest, getRequestData);
			} else {
				httpReader.size = contentSize;
			}
		}
	} else {
		await getContentLength(httpReader, sendRequest, getRequestData);
	}
}

async function readUint8ArrayHttpReader(httpReader, index, length, sendRequest, getRequestData) {
	const {