forked from cdnjs/cdnjs
-
Notifications
You must be signed in to change notification settings - Fork 1
/
auto-update.js
executable file
·364 lines (317 loc) · 10.5 KB
/
auto-update.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
#!/usr/bin/env node
var path = require('path');
var assert = require('assert');
var fs = require('fs-extra');
var glob = require('glob');
var _ = require('lodash');
var request = require('superagent');
var async = require('async');
var tarball = require('tarball-extract');
var chmodr = require('chmodr');
var colors = require('colors');
var isThere = require('is-there');
var stable = require('semver-stable');
var semver = require('semver');
var tempDirPath;
var args;
if (fs.existsSync('/run/shm')) {
tempDirPath = '/run/shm/' + process.env.USER + '/cdnjs_NPM_temp';
} else {
tempDirPath = path.join(__dirname, 'temp');
}
colors.setTheme({
prompt: 'cyan',
info: 'grey',
success: 'green',
warn: 'yellow',
error: 'red'
});
var newVersionCount = 0;
var parse = function (jsonFile, ignoreMissing, ignoreParseFail) {
var content;
try {
content = fs.readFileSync(jsonFile, 'utf8');
} catch (err1) {
if (!ignoreMissing) {
assert.ok(0, jsonFile + " doesn't exist!");
}
return null;
}
try {
return JSON.parse(content);
} catch (err2) {
if (!ignoreParseFail) {
// assert.ok(0, jsonFile + " failed to parse");
}
return null;
}
};
var reEscape = function (s) {
return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
};
/**
* Check if an npmFileMap object contains any path which are not normalized, and thus could allow access to parent dirs
* @param pkg
* @returns {*}
*/
var isValidFileMap = function (pkg) {
var isValidPath = function (p) {
if (p !== null) { // don't allow parent dir access, or tricky paths
p = p.replace(/\/+/g, '/'); // don't penalize for consequtive path seperators
return p === path.normalize(p);
}
return false;
};
if (pkg && pkg.npmFileMap) {
return _.every(pkg.npmFileMap, function (fileSpec) {
if (isValidPath(fileSpec.basePath || '/')) {
return _.every(fileSpec.files, isValidPath);
}
return false;
});
}
return false;
};
var error = function (msg, name) {
var err = new Error(msg);
err.name = name;
console.log(msg.error);
return err;
};
error.PKG_NAME = 'BadPackageName';
error.FILE_PATH = 'BadFilePath';
/**
* returns a fucntion that takes N args, where each arg is a path that must not outside of libPath.
* returns true if all paths are within libPath, else false
*/
var isAllowedPathFn = function (libPath) { // is path within the lib dir? if not, they shouldnt be writing/reading there
libPath = path.normalize(libPath || '/');
return function () {
var paths = arguments.length >= 1 ? [].slice.call(arguments, 0) : [];
var re = new RegExp('^' + reEscape(libPath));
return _.every(paths, function (p) {
p = path.normalize(p);
return p.match(re);
});
};
};
var invalidNpmName = function (name) {
return (name.indexOf('..') !== -1); // doesnt contain
};
var getPackagePath = function (pkg, version) {
return path.normalize(path.join(__dirname, 'ajax', 'libs', pkg.name, version));
};
var getPackageTempPath = function (pkg, version) {
return path.normalize(path.join(tempDirPath, pkg.name, version));
};
/**
* Attempt to update the npmFileMap from extracted package.json, then using npmFileMap move required files to libPath/../
* If the npmFileMap tries to modify files outside of libPath, dont let it!
* @param pkg
* @param libPath = root folder for extracted lib
* @returns {Array} = array of security related errors triggered during operation.
*/
var processNewVersion = function (pkg, version) {
// sometimes the tar is extracted to a dir that isnt called 'package' - get that dir via glob
var extractLibPath = glob.sync(getPackageTempPath(pkg, version) + '/*/')[0];
if (!extractLibPath) {
// even more rarely, the tar doesnt seem to get extracted at all.. which is probably a bug in that lib.
var msg = pkg.npmName + '@' + version +
' - never got extracted! This problem usually goes away on next run.' +
' Couldnt find extract dir here: ' + getPackageTempPath(pkg, version);
console.log(msg.error);
return;
}
// trick to handle wrong permission lib like [email protected]
fs.chmodSync(extractLibPath, 0755);
chmodr.sync(extractLibPath, 0755);
var libPath = getPackagePath(pkg, version);
var isAllowedPath = isAllowedPathFn(extractLibPath);
var newPath = path.join(libPath, 'package.json');
if (fs.existsSync(newPath)) { // turn this off for now
var newPkg = parse(newPath);
if (isValidFileMap(newPkg)) {
pkg.npmFileMap = newPkg.npmFileMap;
}
}
var npmFileMap = pkg.npmFileMap;
var errors = [];
var updated = false;
_.each(npmFileMap, function (fileSpec) {
var basePath = fileSpec.basePath || '';
_.each(fileSpec.files, function (file) {
var libContentsPath = path.normalize(path.join(extractLibPath, basePath));
if (!isAllowedPath(libContentsPath)) {
errors.push(error(pkg.npmName + ' contains a malicious file path: ' +
libContentsPath, error.FILE_PATH));
return;
}
var files = glob.sync(path.join(libContentsPath, file), { nodir: true });
if (files.length === 0) {
// usually old versions have this problem
var msg;
msg = (pkg.npmName + '@' + version + ' - couldnt find file in npmFileMap.') +
(' Doesnt exist: ' + path.join(libContentsPath, file)).info;
fs.mkdirsSync(libPath);
console.log(msg);
}
_.each(files, function (extractFilePath) {
if (extractFilePath.match(/(\.zip\s*$)/i)) {
return;
}
var copyPart = path.relative(libContentsPath, extractFilePath);
var copyPath = path.join(libPath, copyPart);
if (fs.statSync(extractFilePath).size !== 0){
// don't copy the empty file from the source
fs.mkdirsSync(path.dirname(copyPath));
fs.copySync(extractFilePath, copyPath);
fs.chmodSync(copyPath, '0644');
}
updated = true;
});
});
});
if (updated) {
newVersionCount++;
var libPatha = path.normalize(path.join(__dirname, 'ajax', 'libs', pkg.name, 'package.json'));
console.log('------------'.red, libPatha.green);
if (
(!pkg.version) ||
(
semver.gt(version, pkg.version) &&
(
stable.is(version) ||
(!stable.is(version) && !stable.is(pkg.version))
)
)
) {
pkg.version = version;
fs.writeFileSync(libPatha, JSON.stringify(pkg, null, 2) + '\n', 'utf8');
}
}
return errors;
};
/**
* download and extract a tarball for a single npm version, get the files in npmFileMap and delete the rest
* @param pkg
* @param tarballUrl
* @param version
* @param cb
* @returns {*}
*/
var updateLibraryVersion = function (pkg, tarballUrl, version, cb) {
if (invalidNpmName(pkg.name)) {
return cb(error(pkg.npmName + ' has a malicious package name:' + pkg.name, error.PKG_NAME));
}
var extractLibPath = getPackageTempPath(pkg, version);
var libPath = getPackagePath(pkg, version);
if (fs.existsSync(libPath)) {
cb();
} else {
fs.mkdirsSync(extractLibPath);
var url = tarballUrl;
var msg;
var downloadFile = path.join(extractLibPath, 'dist.tar.gz');
tarball.extractTarballDownload(url, downloadFile, extractLibPath, {}, function (err, result) {
if (!err && fs.existsSync(downloadFile)) {
msg = 'Found version ' + version + ' of ' +
pkg.npmName + ', now try to import it.';
console.log(msg.warn);
processNewVersion(pkg, version);
} else if (result.error === 'Server respond 404') {
msg = 'Got 404 on version ' + version + ' of ' + pkg.npmName +
', create an empty folder for it.';
fs.mkdirsSync('./ajax/libs/' + pkg.name + '/' + version);
console.log(msg.warn);
} else {
msg = 'error downloading ' + version + ' of ' + pkg.npmName +
' it didnt exist: ' + result.error;
console.log(msg.error);
}
cb();
});
}
};
/**
* grab all versions of a lib that has an 'npmFileMap' and 'npmName' in its package.json
* @param pkg
* @param tarballUrl
* @param cb
*/
var updateLibrary = function (pkg, cb) {
var msg;
if (!isValidFileMap(pkg)) {
msg = pkg.npmName.error + ' has a malicious npmFileMap';
console.log(msg.warn);
return cb(null);
}
msg = 'Checking versions for ' + pkg.npmName;
if (pkg.name !== pkg.npmName) {
msg += ' (' + pkg.name + ')';
}
console.log(msg.prompt);
var npmNameScopeReg = /^@.+\/.+$/;
var scopedPackage = false;
if (npmNameScopeReg.test(pkg.npmName)) {
scopedPackage = pkg.npmName;
pkg.npmName = pkg.npmName.replace('/', '%2f');
}
request.get('https://registry.npmjs.org/' + pkg.npmName).end(function (error, result) {
if (scopedPackage !== false) {
pkg.npmName = scopedPackage;
}
if (result !== undefined && result.body !== undefined) {
async.each(_.toPairs(result.body.versions), function (p, cb) {
var data = p[1];
var version = p[0];
updateLibraryVersion(pkg, data.dist.tarball, version, cb);
}, function (err) {
var msg = 'Library "' + pkg.name + '" update finished' +
(err ? ' ' + err.error : '');
console.log(msg);
cb(null);
});
} else {
console.log(('Got error on ' + pkg.name + ' ! Error: ' + error).error);
}
});
};
exports.run = function () {
fs.removeSync(path.join(tempDirPath));
fs.mkdirsSync(tempDirPath);
console.log('Looking for npm enabled libraries...');
// load up those files
var packages;
var globPattern = '*';
if (args.length === 2) {
globPattern = args[1];
}
packages = glob.sync('./ajax/libs/' + globPattern + '/package.json');
packages = _(packages).map(function (pkg) {
var parsedPkg = parse(pkg);
return (parsedPkg.npmName && parsedPkg.npmFileMap) ? parsedPkg : null;
}).compact().value();
var msg = 'Found ' + packages.length + ' npm enabled libraries';
console.log(msg.prompt);
async.each(packages, updateLibrary, function (err) {
var msg = 'Auto Update Completed - ' + newVersionCount +
' versions were updated';
console.log(msg.prompt);
if (err) {
console.dir(err);
}
});
};
exports.updateLibrary = updateLibrary;
exports.updateLibraryVersion = updateLibraryVersion;
exports.processNewVersion = processNewVersion;
exports.error = error;
exports.isAllowedPathFn = isAllowedPathFn;
exports.isValidFileMap = isValidFileMap;
exports.invalidNpmName = invalidNpmName;
args = process.argv.slice(2);
if (args.length > 0 && args[0] === 'run') {
exports.run();
} else {
console.log('to start "npm auto-update", pass the "run" arg'.prompt);
}