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/*! * Port of body-parser (https://github.com/expressjs/body-parser) for Deno. * * Licensed as follows: * * (The MIT License) * * Copyright (c) 2014 Jonathan Ong <me@jongleberry.com> * Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.com> * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * 'Software'), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */
import type { NextFunction, OpineRequest, OpineResponse } from "../../types.ts";import {  gunzip as createGunzip,  inflate as createInflate,  readAll,} from "../../../deps.ts";import { createError } from "../../utils/createError.ts";
/** * Read a request into a buffer and parse. * * @param {OpineRequest} req * @param {OpineResponse} res * @param {Function} next * @param {Function} parse * @param {object} options * @private */export async function read(  req: OpineRequest,  res: OpineResponse,  next: NextFunction,  parse: Function,  options: any,) {  req._parsedBody = true;
  const encoding: string = options.encoding;  const verify = options.verify;
  let raw: Uint8Array;  try {    raw = await decodeContent(req, options.inflate);  } catch (err) {    next(err);
    return;  }
  if (verify) {    try {      verify(req, res, raw, encoding);    } catch (err) {      next(createError(403, err.message, {        body: raw,        type: err.type ?? "entity.verify.failed",      }));
      return;    }  }
  let str;  try {    str = typeof raw !== "string" && encoding !== null      ? new TextDecoder(encoding).decode(raw)      : raw;
    req.parsedBody = parse(str);  } catch (err) {    next(createError(400, err.message, {      body: str ?? raw,      type: err.type ?? "entity.parse.failed",    }));
    return;  }
  next();}
/** * Get the decoded content of the request. * * @param {object} req * @param {boolean} [inflate=true] * @return {Promise<Uint8Array>} * @private */async function decodeContent(  req: OpineRequest,  inflate = true,): Promise<Uint8Array> {  const encoding = (req.headers.get("content-encoding") || "identity")    .toLowerCase();
  if (inflate === false && encoding !== "identity") {    throw createError(415, `unsupported content encoding "${encoding}"`, {      encoding: encoding,      type: "encoding.unsupported",    });  }
  let raw;  try {    raw = await readAll(req.body);  } catch (err) {    throw createError(400, err.message, err);  }
  switch (encoding) {    case "deflate":      return createInflate(raw);    case "gzip":      return createGunzip(raw);    case "identity":      return raw;    default:      throw createError(415, `unsupported content encoding "${encoding}"`, {        encoding: encoding,        type: "encoding.unsupported",      });  }}