mirror of
https://github.com/nodejs/node.git
synced 2024-12-01 16:10:02 +01:00
595 lines
18 KiB
JavaScript
595 lines
18 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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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 isWindows = process.platform === 'win32';
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var skipSymlinks = false;
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var root = '/';
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if (isWindows) {
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// something like "C:\\"
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root = process.cwd().substr(0, 3);
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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 fixturesAbsDir = common.fixturesDir;
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var tmpAbsDir = common.tmpDir;
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console.error("absolutes\n%s\n%s", fixturesAbsDir, tmpAbsDir);
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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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console.log('skipping symlink test (no privs)');
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return runNextTest();
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}
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var entry = common.tmpDir + '/symlink',
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expected = common.tmpDir + '/cycles/root.js';
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[
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[entry, '../tmp/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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assert.equal(result, path.resolve(expected),
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'got ' + common.inspect(result) + ' expected ' +
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common.inspect(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.equal(result, path.resolve(expected),
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(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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var entry = tmpAbsDir + '/symlink',
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expected = fixturesAbsDir + '/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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assert.equal(result, path.resolve(expected),
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.equal(result, path.resolve(expected),
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(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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console.log('skipping 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 = '../../cycles/root.js';
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var linkPath1 = path.join(common.fixturesDir,
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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(common.fixturesDir,
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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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assert.equal(fs.realpathSync(entry), path.resolve(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.equal(result, path.resolve(expected),
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(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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console.log('skipping 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 linkData1b = '../../cycles/folder';
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var linkPath1b = path.join(common.fixturesDir,
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'nested-index', 'one', 'symlink1-dir');
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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(common.fixturesDir,
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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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assert.equal(fs.realpathSync(entry), path.resolve(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.equal(result, path.resolve(expected),
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(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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console.log('skipping 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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console.log('skipping 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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for (var i = 0; i < 10; i++) testPath += '/folder/cycles';
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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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assert.equal(fs.realpathSync(testPath), path.resolve(expected));
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asynctest(fs.realpath, [testPath], callback, function(er, res) {
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assert.equal(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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// we need to get the relative path to the tmp dir from cwd.
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// When the test runner is running it, that will be .../node/test
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// but it's more common to run `./node test/.../`, so detect it here.
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var entrydir = process.cwd();
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var entry = common.tmpDir.substr(entrydir.length + 1) + '/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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assert.equal(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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assert.equal(result, path.resolve(expected),
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(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 (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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console.log('skipping symlink test (no way to work on windows)');
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return runNextTest();
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}
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// todo: check to see that common.fixturesDir is not rooted in the
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// same directory as our test symlink.
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/*
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/tmp/node-test-realpath-f1 -> ../tmp/node-test-realpath-d1/foo
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/tmp/node-test-realpath-d1 -> ../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
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-> /node/test/fixtures/nested-index/one/realpath-c
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/node/test/fixtures/nested-index/one/realpath-c
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-> /node/test/fixtures/nested-index/two/realpath-c
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/node/test/fixtures/nested-index/two/realpath-c -> ../../cycles/root.js
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/node/test/fixtures/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'), 0700);
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try {
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[
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[entry, '../tmp/node-test-realpath-d1/foo'],
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[tmp('node-test-realpath-d1'), '../tmp/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'), fixturesAbsDir +
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'/nested-index/one/realpath-c'],
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[fixturesAbsDir + '/nested-index/one/realpath-c', fixturesAbsDir +
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'/nested-index/two/realpath-c'],
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[fixturesAbsDir + '/nested-index/two/realpath-c',
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'../../../tmp/cycles/root.js']
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].forEach(function(t) {
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//common.debug('setting up '+t[0]+' -> '+t[1]);
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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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assert.equal(fs.realpathSync(entry), path.resolve(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.equal(result, path.resolve(expected),
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(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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assert.equal(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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assert.equal(result, path.resolve(expected),
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(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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assert.equal(upone, uponeActual,
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'realpath("..") expected: ' + path.resolve(upone) + ' actual:' + uponeActual);
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});
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}
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var uponeActual = fs.realpathSync('..');
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assert.equal(upone, uponeActual,
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'realpathSync("..") expected: ' + path.resolve(upone) + ' 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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console.log('skipping symlink test (no privs)');
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return runNextTest();
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}
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fs.mkdirSync(tmp('a'), 0755);
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fs.mkdirSync(tmp('a/b'), 0755);
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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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assert.equal(fs.realpathSync(abedabeda), abedabeda_real);
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assert.equal(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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assert.equal(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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assert.equal(abedabed_real, real);
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cb();
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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) {}
|
|
});
|
|
}
|
|
function setup() {
|
|
cleanup();
|
|
['',
|
|
'/a',
|
|
'/a/b',
|
|
'/a/b/c'
|
|
].forEach(function(folder) {
|
|
console.log('mkdir ' + root + folder);
|
|
fs.mkdirSync(root + folder, 0700);
|
|
});
|
|
fs.writeFileSync(root + '/a/b/c/x.txt', 'foo');
|
|
fs.symlinkSync(root + '/a/b', root + '/a/link', type);
|
|
}
|
|
setup();
|
|
var linkPath = root + '/a/link/c/x.txt';
|
|
var expectPath = root + '/a/b/c/x.txt';
|
|
var actual = fs.realpathSync(linkPath);
|
|
// console.log({link:linkPath,expect:expectPath,actual:actual},'sync');
|
|
assert.equal(actual, path.resolve(expectPath));
|
|
asynctest(fs.realpath, [linkPath], cb, function(er, actual) {
|
|
// console.log({link:linkPath,expect:expectPath,actual:actual},'async');
|
|
assert.equal(actual, path.resolve(expectPath));
|
|
cleanup();
|
|
});
|
|
}
|
|
|
|
function test_lying_cache_liar(cb) {
|
|
var n = 2;
|
|
|
|
// this should not require *any* stat calls, since everything
|
|
// checked by realpath will be found in the cache.
|
|
console.log('test_lying_cache_liar');
|
|
var cache = { '/foo/bar/baz/bluff' : '/foo/bar/bluff',
|
|
'/1/2/3/4/5/6/7' : '/1',
|
|
'/a' : '/a',
|
|
'/a/b' : '/a/b',
|
|
'/a/b/c' : '/a/b',
|
|
'/a/b/d' : '/a/b/d' };
|
|
if (isWindows) {
|
|
var wc = {};
|
|
Object.keys(cache).forEach(function(k) {
|
|
wc[ path.resolve(k) ] = path.resolve(cache[k]);
|
|
});
|
|
cache = wc;
|
|
}
|
|
|
|
var bluff = path.resolve('/foo/bar/baz/bluff');
|
|
var rps = fs.realpathSync(bluff, cache);
|
|
assert.equal(cache[bluff], rps);
|
|
var nums = path.resolve('/1/2/3/4/5/6/7');
|
|
var called = false; // no sync cb calling!
|
|
fs.realpath(nums, cache, function(er, rp) {
|
|
called = true;
|
|
assert.equal(cache[nums], rp);
|
|
if (--n === 0) cb();
|
|
});
|
|
assert(called === false);
|
|
|
|
var test = path.resolve('/a/b/c/d'),
|
|
expect = path.resolve('/a/b/d');
|
|
var actual = fs.realpathSync(test, cache);
|
|
assert.equal(expect, actual);
|
|
fs.realpath(test, cache, function(er, actual) {
|
|
assert.equal(expect, actual);
|
|
if (--n === 0) cb();
|
|
});
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
var tests = [
|
|
test_simple_error_callback,
|
|
test_simple_relative_symlink,
|
|
test_simple_absolute_symlink,
|
|
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_lying_cache_liar,
|
|
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);
|
|
}
|
|
|
|
|
|
assert.equal(root, fs.realpathSync('/'));
|
|
fs.realpath('/', function(err, result) {
|
|
assert.equal(null, err);
|
|
assert.equal(root, result);
|
|
});
|
|
|
|
|
|
function runTest() {
|
|
var tmpDirs = ['cycles', 'cycles/folder'];
|
|
tmpDirs.forEach(function(t) {
|
|
t = tmp(t);
|
|
var s;
|
|
try { s = fs.statSync(t); } catch (ex) {}
|
|
if (s) return;
|
|
fs.mkdirSync(t, 0700);
|
|
});
|
|
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);
|
|
});
|