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519 lines
16 KiB
519 lines
16 KiB
'use strict';
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var common = require('../common');
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var assert = require('assert');
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var fs = require('fs');
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var path = require('path');
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var exec = require('child_process').exec;
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var async_completed = 0, async_expected = 0, unlink = [];
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var skipSymlinks = false;
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common.refreshTmpDir();
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var root = '/';
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var assertEqualPath = assert.equal;
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if (common.isWindows) {
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// something like "C:\\"
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root = process.cwd().substr(0, 3);
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assertEqualPath = function(path_left, path_right, message) {
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assert.equal(path_left.toLowerCase(), path_right.toLowerCase(), message);
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};
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// On Windows, creating symlinks requires admin privileges.
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// We'll only try to run symlink test if we have enough privileges.
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try {
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exec('whoami /priv', function(err, o) {
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if (err || o.indexOf('SeCreateSymbolicLinkPrivilege') == -1) {
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skipSymlinks = true;
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}
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runTest();
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});
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} catch (er) {
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// better safe than sorry
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skipSymlinks = true;
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process.nextTick(runTest);
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}
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} else {
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process.nextTick(runTest);
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}
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function tmp(p) {
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return path.join(common.tmpDir, p);
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}
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var targetsAbsDir = path.join(common.tmpDir, 'targets');
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var tmpAbsDir = common.tmpDir;
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// Set up targetsAbsDir and expected subdirectories
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fs.mkdirSync(targetsAbsDir);
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fs.mkdirSync(path.join(targetsAbsDir, 'nested-index'));
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fs.mkdirSync(path.join(targetsAbsDir, 'nested-index', 'one'));
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fs.mkdirSync(path.join(targetsAbsDir, 'nested-index', 'two'));
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function asynctest(testBlock, args, callback, assertBlock) {
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async_expected++;
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testBlock.apply(testBlock, args.concat(function(err) {
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var ignoreError = false;
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if (assertBlock) {
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try {
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ignoreError = assertBlock.apply(assertBlock, arguments);
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}
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catch (e) {
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err = e;
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}
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}
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async_completed++;
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callback(ignoreError ? null : err);
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}));
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}
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// sub-tests:
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function test_simple_error_callback(cb) {
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var ncalls = 0;
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fs.realpath('/this/path/does/not/exist', function(err, s) {
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assert(err);
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assert(!s);
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ncalls++;
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cb();
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});
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process.on('exit', function() {
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assert.equal(ncalls, 1);
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});
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}
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function test_simple_relative_symlink(callback) {
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console.log('test_simple_relative_symlink');
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if (skipSymlinks) {
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common.skip('symlink test (no privs)');
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return runNextTest();
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}
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const entry = common.tmpDir + '/symlink';
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const expected = common.tmpDir + '/cycles/root.js';
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[
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[entry, '../' + common.tmpDirName + '/cycles/root.js']
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].forEach(function(t) {
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try {fs.unlinkSync(t[0]);} catch (e) {}
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console.log('fs.symlinkSync(%j, %j, %j)', t[1], t[0], 'file');
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fs.symlinkSync(t[1], t[0], 'file');
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unlink.push(t[0]);
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});
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var result = fs.realpathSync(entry);
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assertEqualPath(result, path.resolve(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assertEqualPath(result, path.resolve(expected));
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});
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}
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function test_simple_absolute_symlink(callback) {
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console.log('test_simple_absolute_symlink');
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// this one should still run, even if skipSymlinks is set,
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// because it uses a junction.
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var type = skipSymlinks ? 'junction' : 'dir';
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console.log('using type=%s', type);
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const entry = tmpAbsDir + '/symlink';
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const expected = common.fixturesDir + '/nested-index/one';
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[
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[entry, expected]
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].forEach(function(t) {
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try {fs.unlinkSync(t[0]);} catch (e) {}
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console.error('fs.symlinkSync(%j, %j, %j)', t[1], t[0], type);
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fs.symlinkSync(t[1], t[0], type);
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unlink.push(t[0]);
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});
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var result = fs.realpathSync(entry);
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assertEqualPath(result, path.resolve(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assertEqualPath(result, path.resolve(expected));
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});
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}
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function test_deep_relative_file_symlink(callback) {
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console.log('test_deep_relative_file_symlink');
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if (skipSymlinks) {
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common.skip('symlink test (no privs)');
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return runNextTest();
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}
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var expected = path.join(common.fixturesDir, 'cycles', 'root.js');
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var linkData1 = path.relative(path.join(targetsAbsDir, 'nested-index', 'one'),
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expected);
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var linkPath1 = path.join(targetsAbsDir,
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'nested-index', 'one', 'symlink1.js');
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try {fs.unlinkSync(linkPath1);} catch (e) {}
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fs.symlinkSync(linkData1, linkPath1, 'file');
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var linkData2 = '../one/symlink1.js';
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var entry = path.join(targetsAbsDir,
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'nested-index', 'two', 'symlink1-b.js');
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try {fs.unlinkSync(entry);} catch (e) {}
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fs.symlinkSync(linkData2, entry, 'file');
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unlink.push(linkPath1);
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unlink.push(entry);
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assertEqualPath(fs.realpathSync(entry), path.resolve(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assertEqualPath(result, path.resolve(expected));
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});
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}
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function test_deep_relative_dir_symlink(callback) {
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console.log('test_deep_relative_dir_symlink');
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if (skipSymlinks) {
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common.skip('symlink test (no privs)');
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return runNextTest();
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}
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var expected = path.join(common.fixturesDir, 'cycles', 'folder');
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var path1b = path.join(targetsAbsDir, 'nested-index', 'one');
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var linkPath1b = path.join(path1b, 'symlink1-dir');
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var linkData1b = path.relative(path1b, expected);
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try {fs.unlinkSync(linkPath1b);} catch (e) {}
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fs.symlinkSync(linkData1b, linkPath1b, 'dir');
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var linkData2b = '../one/symlink1-dir';
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var entry = path.join(targetsAbsDir,
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'nested-index', 'two', 'symlink12-dir');
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try {fs.unlinkSync(entry);} catch (e) {}
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fs.symlinkSync(linkData2b, entry, 'dir');
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unlink.push(linkPath1b);
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unlink.push(entry);
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assertEqualPath(fs.realpathSync(entry), path.resolve(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assertEqualPath(result, path.resolve(expected));
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});
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}
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function test_cyclic_link_protection(callback) {
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console.log('test_cyclic_link_protection');
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if (skipSymlinks) {
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common.skip('symlink test (no privs)');
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return runNextTest();
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}
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var entry = common.tmpDir + '/cycles/realpath-3a';
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[
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[entry, '../cycles/realpath-3b'],
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[common.tmpDir + '/cycles/realpath-3b', '../cycles/realpath-3c'],
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[common.tmpDir + '/cycles/realpath-3c', '../cycles/realpath-3a']
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].forEach(function(t) {
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try {fs.unlinkSync(t[0]);} catch (e) {}
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fs.symlinkSync(t[1], t[0], 'dir');
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unlink.push(t[0]);
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});
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assert.throws(function() { fs.realpathSync(entry); });
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.ok(err && true);
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return true;
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});
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}
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function test_cyclic_link_overprotection(callback) {
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console.log('test_cyclic_link_overprotection');
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if (skipSymlinks) {
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common.skip('symlink test (no privs)');
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return runNextTest();
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}
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var cycles = common.tmpDir + '/cycles';
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var expected = fs.realpathSync(cycles);
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var folder = cycles + '/folder';
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var link = folder + '/cycles';
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var testPath = cycles;
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testPath += '/folder/cycles'.repeat(10);
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try {fs.unlinkSync(link);} catch (ex) {}
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fs.symlinkSync(cycles, link, 'dir');
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unlink.push(link);
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assertEqualPath(fs.realpathSync(testPath), path.resolve(expected));
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asynctest(fs.realpath, [testPath], callback, function(er, res) {
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assertEqualPath(res, path.resolve(expected));
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});
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}
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function test_relative_input_cwd(callback) {
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console.log('test_relative_input_cwd');
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if (skipSymlinks) {
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common.skip('symlink test (no privs)');
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return runNextTest();
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}
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// we need to calculate the relative path to the tmp dir from cwd
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var entrydir = process.cwd();
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var entry = path.relative(entrydir,
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path.join(common.tmpDir + '/cycles/realpath-3a'));
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var expected = common.tmpDir + '/cycles/root.js';
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[
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[entry, '../cycles/realpath-3b'],
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[common.tmpDir + '/cycles/realpath-3b', '../cycles/realpath-3c'],
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[common.tmpDir + '/cycles/realpath-3c', 'root.js']
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].forEach(function(t) {
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var fn = t[0];
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console.error('fn=%j', fn);
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try {fs.unlinkSync(fn);} catch (e) {}
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var b = path.basename(t[1]);
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var type = (b === 'root.js' ? 'file' : 'dir');
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console.log('fs.symlinkSync(%j, %j, %j)', t[1], fn, type);
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fs.symlinkSync(t[1], fn, 'file');
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unlink.push(fn);
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});
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var origcwd = process.cwd();
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process.chdir(entrydir);
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assertEqualPath(fs.realpathSync(entry), path.resolve(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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process.chdir(origcwd);
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assertEqualPath(result, path.resolve(expected));
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return true;
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});
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}
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function test_deep_symlink_mix(callback) {
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console.log('test_deep_symlink_mix');
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if (common.isWindows) {
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// This one is a mix of files and directories, and it's quite tricky
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// to get the file/dir links sorted out correctly.
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common.skip('symlink test (no privs)');
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return runNextTest();
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}
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/*
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/tmp/node-test-realpath-f1 -> $tmpDir/node-test-realpath-d1/foo
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/tmp/node-test-realpath-d1 -> $tmpDir/node-test-realpath-d2
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/tmp/node-test-realpath-d2/foo -> $tmpDir/node-test-realpath-f2
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/tmp/node-test-realpath-f2
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-> $tmpDir/targets/nested-index/one/realpath-c
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$tmpDir/targets/nested-index/one/realpath-c
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-> $tmpDir/targets/nested-index/two/realpath-c
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$tmpDir/targets/nested-index/two/realpath-c -> $tmpDir/cycles/root.js
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$tmpDir/targets/cycles/root.js (hard)
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*/
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var entry = tmp('node-test-realpath-f1');
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try { fs.unlinkSync(tmp('node-test-realpath-d2/foo')); } catch (e) {}
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try { fs.rmdirSync(tmp('node-test-realpath-d2')); } catch (e) {}
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fs.mkdirSync(tmp('node-test-realpath-d2'), 0o700);
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try {
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[
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[entry, common.tmpDir + '/node-test-realpath-d1/foo'],
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[tmp('node-test-realpath-d1'),
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common.tmpDir + '/node-test-realpath-d2'],
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[tmp('node-test-realpath-d2/foo'), '../node-test-realpath-f2'],
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[tmp('node-test-realpath-f2'), targetsAbsDir +
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'/nested-index/one/realpath-c'],
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[targetsAbsDir + '/nested-index/one/realpath-c', targetsAbsDir +
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'/nested-index/two/realpath-c'],
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[targetsAbsDir + '/nested-index/two/realpath-c',
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common.tmpDir + '/cycles/root.js']
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].forEach(function(t) {
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try { fs.unlinkSync(t[0]); } catch (e) {}
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fs.symlinkSync(t[1], t[0]);
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unlink.push(t[0]);
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});
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} finally {
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unlink.push(tmp('node-test-realpath-d2'));
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}
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var expected = tmpAbsDir + '/cycles/root.js';
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assertEqualPath(fs.realpathSync(entry), path.resolve(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assertEqualPath(result, path.resolve(expected));
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return true;
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});
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}
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function test_non_symlinks(callback) {
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console.log('test_non_symlinks');
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var entrydir = path.dirname(tmpAbsDir);
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var entry = tmpAbsDir.substr(entrydir.length + 1) + '/cycles/root.js';
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var expected = tmpAbsDir + '/cycles/root.js';
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var origcwd = process.cwd();
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process.chdir(entrydir);
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assertEqualPath(fs.realpathSync(entry), path.resolve(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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process.chdir(origcwd);
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assertEqualPath(result, path.resolve(expected));
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return true;
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});
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}
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var upone = path.join(process.cwd(), '..');
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function test_escape_cwd(cb) {
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console.log('test_escape_cwd');
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asynctest(fs.realpath, ['..'], cb, function(er, uponeActual) {
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assertEqualPath(upone, uponeActual,
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'realpath("..") expected: ' + path.resolve(upone) +
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' actual:' + uponeActual);
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});
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}
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var uponeActual = fs.realpathSync('..');
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assertEqualPath(upone, uponeActual,
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'realpathSync("..") expected: ' + path.resolve(upone) +
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' actual:' + uponeActual);
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// going up with .. multiple times
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// .
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// `-- a/
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// |-- b/
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// | `-- e -> ..
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// `-- d -> ..
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// realpath(a/b/e/d/a/b/e/d/a) ==> a
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function test_up_multiple(cb) {
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console.error('test_up_multiple');
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if (skipSymlinks) {
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common.skip('symlink test (no privs)');
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return runNextTest();
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}
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function cleanup() {
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['a/b',
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'a'
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].forEach(function(folder) {
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try {fs.rmdirSync(tmp(folder));} catch (ex) {}
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});
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}
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function setup() {
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cleanup();
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}
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setup();
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fs.mkdirSync(tmp('a'), 0o755);
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fs.mkdirSync(tmp('a/b'), 0o755);
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fs.symlinkSync('..', tmp('a/d'), 'dir');
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unlink.push(tmp('a/d'));
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fs.symlinkSync('..', tmp('a/b/e'), 'dir');
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unlink.push(tmp('a/b/e'));
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var abedabed = tmp('abedabed'.split('').join('/'));
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var abedabed_real = tmp('');
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var abedabeda = tmp('abedabeda'.split('').join('/'));
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var abedabeda_real = tmp('a');
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assertEqualPath(fs.realpathSync(abedabeda), abedabeda_real);
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assertEqualPath(fs.realpathSync(abedabed), abedabed_real);
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fs.realpath(abedabeda, function(er, real) {
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if (er) throw er;
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assertEqualPath(abedabeda_real, real);
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fs.realpath(abedabed, function(er, real) {
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if (er) throw er;
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assertEqualPath(abedabed_real, real);
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cb();
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cleanup();
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});
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});
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}
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// absolute symlinks with children.
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// .
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// `-- a/
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// |-- b/
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// | `-- c/
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// | `-- x.txt
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// `-- link -> /tmp/node-test-realpath-abs-kids/a/b/
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// realpath(root+'/a/link/c/x.txt') ==> root+'/a/b/c/x.txt'
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function test_abs_with_kids(cb) {
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console.log('test_abs_with_kids');
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// this one should still run, even if skipSymlinks is set,
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// because it uses a junction.
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var type = skipSymlinks ? 'junction' : 'dir';
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console.log('using type=%s', type);
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var root = tmpAbsDir + '/node-test-realpath-abs-kids';
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function cleanup() {
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['/a/b/c/x.txt',
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'/a/link'
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].forEach(function(file) {
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try {fs.unlinkSync(root + file);} catch (ex) {}
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});
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['/a/b/c',
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'/a/b',
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'/a',
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''
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].forEach(function(folder) {
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try {fs.rmdirSync(root + folder);} catch (ex) {}
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});
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}
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function setup() {
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cleanup();
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['',
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'/a',
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'/a/b',
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'/a/b/c'
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].forEach(function(folder) {
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console.log('mkdir ' + root + folder);
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fs.mkdirSync(root + folder, 0o700);
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});
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fs.writeFileSync(root + '/a/b/c/x.txt', 'foo');
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fs.symlinkSync(root + '/a/b', root + '/a/link', type);
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}
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setup();
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var linkPath = root + '/a/link/c/x.txt';
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var expectPath = root + '/a/b/c/x.txt';
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var actual = fs.realpathSync(linkPath);
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// console.log({link:linkPath,expect:expectPath,actual:actual},'sync');
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assertEqualPath(actual, path.resolve(expectPath));
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asynctest(fs.realpath, [linkPath], cb, function(er, actual) {
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// console.log({link:linkPath,expect:expectPath,actual:actual},'async');
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assertEqualPath(actual, path.resolve(expectPath));
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cleanup();
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});
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}
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// ----------------------------------------------------------------------------
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var tests = [
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test_simple_error_callback,
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test_simple_relative_symlink,
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test_simple_absolute_symlink,
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|
test_deep_relative_file_symlink,
|
|
test_deep_relative_dir_symlink,
|
|
test_cyclic_link_protection,
|
|
test_cyclic_link_overprotection,
|
|
test_relative_input_cwd,
|
|
test_deep_symlink_mix,
|
|
test_non_symlinks,
|
|
test_escape_cwd,
|
|
test_abs_with_kids,
|
|
test_up_multiple
|
|
];
|
|
var numtests = tests.length;
|
|
var testsRun = 0;
|
|
function runNextTest(err) {
|
|
if (err) throw err;
|
|
var test = tests.shift();
|
|
if (!test) {
|
|
return console.log(numtests +
|
|
' subtests completed OK for fs.realpath');
|
|
}
|
|
testsRun++;
|
|
test(runNextTest);
|
|
}
|
|
|
|
|
|
assertEqualPath(root, fs.realpathSync('/'));
|
|
fs.realpath('/', function(err, result) {
|
|
assert.equal(null, err);
|
|
assertEqualPath(root, result);
|
|
});
|
|
|
|
|
|
function runTest() {
|
|
var tmpDirs = ['cycles', 'cycles/folder'];
|
|
tmpDirs.forEach(function(t) {
|
|
t = tmp(t);
|
|
fs.mkdirSync(t, 0o700);
|
|
});
|
|
fs.writeFileSync(tmp('cycles/root.js'), "console.error('roooot!');");
|
|
console.error('start tests');
|
|
runNextTest();
|
|
}
|
|
|
|
|
|
process.on('exit', function() {
|
|
assert.equal(numtests, testsRun);
|
|
unlink.forEach(function(path) { try {fs.unlinkSync(path);} catch (e) {} });
|
|
assert.equal(async_completed, async_expected);
|
|
});
|
|
|