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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { type CallbackWithError, makeCallback } from "./_fs_common.ts";import { fs } from "../internal_binding/constants.ts";import { codeMap } from "../internal_binding/uv.ts";import { getValidatedPath, getValidMode } from "../internal/fs/utils.mjs";import type { Buffer } from "../buffer.ts";import { promisify } from "../internal/util.mjs";
export function access(  path: string | Buffer | URL,  mode: number | CallbackWithError,  callback?: CallbackWithError,) {  if (typeof mode === "function") {    callback = mode;    mode = fs.F_OK;  }
  path = getValidatedPath(path).toString();  mode = getValidMode(mode, "access");  const cb = makeCallback(callback);
  Deno.lstat(path).then((info) => {    if (info.mode === null) {      // If the file mode is unavailable, we pretend it has      // the permission      cb(null);      return;    }    const m = +mode || 0;    let fileMode = +info.mode || 0;    if (Deno.build.os !== "windows" && info.uid === Deno.uid()) {      // If the user is the owner of the file, then use the owner bits of      // the file permission      fileMode >>= 6;    }    // TODO(kt3k): Also check the case when the user belong to the group    // of the file    if ((m & fileMode) === m) {      // all required flags exist      cb(null);    } else {      // some required flags don't      // deno-lint-ignore no-explicit-any      const e: any = new Error(`EACCES: permission denied, access '${path}'`);      e.path = path;      e.syscall = "access";      e.errno = codeMap.get("EACCES");      e.code = "EACCES";      cb(e);    }  }, (err) => {    if (err instanceof Deno.errors.NotFound) {      // deno-lint-ignore no-explicit-any      const e: any = new Error(        `ENOENT: no such file or directory, access '${path}'`,      );      e.path = path;      e.syscall = "access";      e.errno = codeMap.get("ENOENT");      e.code = "ENOENT";      cb(e);    } else {      cb(err);    }  });}
export const accessPromise = promisify(access) as (  path: string | Buffer | URL,  mode?: number,) => Promise<void>;
export function accessSync(path: string | Buffer | URL, mode?: number) {  path = getValidatedPath(path).toString();  mode = getValidMode(mode, "access");  try {    const info = Deno.lstatSync(path.toString());    if (info.mode === null) {      // If the file mode is unavailable, we pretend it has      // the permission      return;    }    const m = +mode! || 0;    let fileMode = +info.mode! || 0;    if (Deno.build.os !== "windows" && info.uid === Deno.uid()) {      // If the user is the owner of the file, then use the owner bits of      // the file permission      fileMode >>= 6;    }    // TODO(kt3k): Also check the case when the user belong to the group    // of the file    if ((m & fileMode) === m) {      // all required flags exist    } else {      // some required flags don't      // deno-lint-ignore no-explicit-any      const e: any = new Error(`EACCES: permission denied, access '${path}'`);      e.path = path;      e.syscall = "access";      e.errno = codeMap.get("EACCES");      e.code = "EACCES";      throw e;    }  } catch (err) {    if (err instanceof Deno.errors.NotFound) {      // deno-lint-ignore no-explicit-any      const e: any = new Error(        `ENOENT: no such file or directory, access '${path}'`,      );      e.path = path;      e.syscall = "access";      e.errno = codeMap.get("ENOENT");      e.code = "ENOENT";      throw e;    } else {      throw err;    }  }}