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67 lines
2.0 KiB
Plaintext
67 lines
2.0 KiB
Plaintext
"use strict";
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/**
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* This is the Posix implementation of isexe, which uses the file
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* mode and uid/gid values.
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*
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* @module
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.sync = exports.isexe = void 0;
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const node_fs_1 = require("node:fs");
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const promises_1 = require("node:fs/promises");
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/**
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* Determine whether a path is executable according to the mode and
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* current (or specified) user and group IDs.
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*/
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const isexe = async (path, options = {}) => {
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const { ignoreErrors = false } = options;
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try {
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return checkStat(await (0, promises_1.stat)(path), options);
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}
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catch (e) {
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const er = e;
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if (ignoreErrors || er.code === 'EACCES')
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return false;
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throw er;
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}
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};
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exports.isexe = isexe;
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/**
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* Synchronously determine whether a path is executable according to
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* the mode and current (or specified) user and group IDs.
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*/
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const sync = (path, options = {}) => {
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const { ignoreErrors = false } = options;
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try {
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return checkStat((0, node_fs_1.statSync)(path), options);
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}
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catch (e) {
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const er = e;
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if (ignoreErrors || er.code === 'EACCES')
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return false;
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throw er;
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}
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};
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exports.sync = sync;
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const checkStat = (stat, options) => stat.isFile() && checkMode(stat, options);
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const checkMode = (stat, options) => {
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const myUid = options.uid ?? process.getuid?.();
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const myGroups = options.groups ?? process.getgroups?.() ?? [];
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const myGid = options.gid ?? process.getgid?.() ?? myGroups[0];
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if (myUid === undefined || myGid === undefined) {
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throw new Error('cannot get uid or gid');
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}
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const groups = new Set([myGid, ...myGroups]);
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const mod = stat.mode;
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const uid = stat.uid;
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const gid = stat.gid;
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const u = parseInt('100', 8);
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const g = parseInt('010', 8);
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const o = parseInt('001', 8);
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const ug = u | g;
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return !!(mod & o ||
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(mod & g && groups.has(gid)) ||
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(mod & u && uid === myUid) ||
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(mod & ug && myUid === 0));
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};
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//# sourceMappingURL=posix.js.map |