forked from openid/php-openid
-
Notifications
You must be signed in to change notification settings - Fork 0
/
detect.php
517 lines (450 loc) · 15.2 KB
/
detect.php
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
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
<?php
$path_extra = dirname(dirname(__FILE__));
$path = ini_get('include_path');
$path = $path_extra . PATH_SEPARATOR . $path;
ini_set('include_path', $path);
define('IS_WINDOWS', strtoupper(substr(PHP_OS, 0, 3)) === 'WIN');
class PlainText {
function start($title)
{
return '';
}
function tt($text)
{
return $text;
}
function link($href, $text=null)
{
if ($text) {
return $text . ' <' . $href . '>';
} else {
return $href;
}
}
function b($text)
{
return '*' . $text . '*';
}
function contentType()
{
return 'text/plain';
}
function p($text)
{
return wordwrap($text) . "\n\n";
}
function pre($text)
{
$out = '';
$lines = array_map('trim', explode("\n", $text));
foreach ($lines as $line) {
$out .= ' ' . $line . "\n";
}
$out .= "\n";
return $out;
}
function ol($items)
{
$out = '';
$c = 1;
foreach ($items as $item) {
$item = wordwrap($item, 72);
$lines = array_map('trim', explode("\n", $item));
$out .= $c . '. ' . $lines[0] . "\n";
unset($lines[0]);
foreach ($lines as $line) {
$out .= ' ' . $line . "\n";
}
$out .= "\n";
$c += 1;
}
return $out;
}
function h2($text)
{
return $this->h($text, 2);
}
function h1($text)
{
return $this->h($text, 1);
}
function h($text, $n)
{
$chars = '#=+-.';
$c = $chars[$n - 1];
return "\n" . $text . "\n" . str_repeat($c, strlen($text)) . "\n\n";
}
function end()
{
return '';
}
}
class HTML {
function start($title)
{
return '<html><head><title>' . $title . '</title>' .
$this->stylesheet().
'</head><body>' . "\n";
}
function stylesheet()
{
return "<style type='text/css'>\n".
"p {\n".
" width: 50em;\n".
"}\n".
'</style>';
}
function tt($text)
{
return '<code>' . $text . '</code>';
}
function contentType()
{
return 'text/html';
}
function b($text)
{
return '<strong>' . $text . '</strong>';
}
function p($text)
{
return '<p>' . wordwrap($text) . "</p>\n";
}
function pre($text)
{
return '<pre>' . $text . "</pre>\n";
}
function ol($items)
{
$out = '<ol>';
foreach ($items as $item) {
$out .= '<li>' . wordwrap($item) . "</li>\n";
}
$out .= "</ol>\n";
return $out;
}
function h($text, $n)
{
return "<h$n>$text</h$n>\n";
}
function h2($text)
{
return $this->h($text, 2);
}
function h1($text)
{
return $this->h($text, 1);
}
function link($href, $text=null)
{
return '<a href="' . $href . '">' . ($text ? $text : $href) . '</a>';
}
function end()
{
return "</body>\n</html>\n";
}
}
if (isset($_SERVER['REQUEST_METHOD'])) {
$r = new HTML();
} else {
$r = new PlainText();
}
function detect_math($r, &$out)
{
$out .= $r->h2('Math support');
$ext = Auth_OpenID_detectMathLibrary(Auth_OpenID_math_extensions());
if (!isset($ext['extension']) || !isset($ext['class'])) {
$out .= $r->p(
'Your PHP installation does not include big integer math ' .
'support. This support is required if you wish to run a ' .
'secure OpenID server without using SSL.');
$out .= $r->p('To use this library, you have a few options:');
$gmp_lnk = $r->link('http://www.php.net/manual/en/ref.gmp.php', 'GMP');
$bc_lnk = $r->link('http://www.php.net/manual/en/ref.bc.php', 'bcmath');
$out .= $r->ol(array(
'Install the ' . $gmp_lnk . ' PHP extension',
'Install the ' . $bc_lnk . ' PHP extension',
'If your site is low-security, call ' .
'Auth_OpenID_setNoMathSupport(), defined in Auth/OpenID/BigMath.php. ',
'The library will function, but ' .
'the security of your OpenID server will depend on the ' .
'security of the network links involved. If you are only ' .
'using consumer support, you should still be able to operate ' .
'securely when the users are communicating with a ' .
'well-implemented server.'));
return false;
} else {
switch ($ext['extension']) {
case 'bcmath':
$out .= $r->p('Your PHP installation has bcmath support. This is ' .
'adequate for small-scale use, but can be CPU-intensive. ' .
'You may want to look into installing the GMP extension.');
$lnk = $r->link('http://www.php.net/manual/en/ref.gmp.php');
$out .= $r->p('See ' . $lnk .' for more information ' .
'about the GMP extension.');
break;
case 'gmp':
$out .= $r->p('Your PHP installation has gmp support. Good.');
break;
default:
$class = $ext['class'];
$lib = new $class();
$one = $lib->init(1);
$two = $lib->add($one, $one);
$t = $lib->toString($two);
$out .= $r->p('Uh-oh. I do not know about the ' .
$ext['extension'] . ' extension!');
if ($t != '2') {
$out .= $r->p('It looks like it is broken. 1 + 1 = ' .
var_export($t, false));
return false;
} else {
$out .= $r->p('But it seems to be able to add one and one.');
}
}
return true; // Math library is OK
}
}
function detect_random($r, &$out)
{
$out .= $r->h2('Cryptographic-quality randomness source');
if (Auth_OpenID_RAND_SOURCE === null) {
$out .= $r->p('Using (insecure) pseudorandom number source, because ' .
'Auth_OpenID_RAND_SOURCE has been defined as null.');
return false;
}
$msg = 'The library will try to access ' . Auth_OpenID_RAND_SOURCE
. ' as a source of random data. ';
$numbytes = 6;
$f = @fopen(Auth_OpenID_RAND_SOURCE, 'r');
if ($f !== false) {
$data = fread($f, $numbytes);
$stat = fstat($f);
$size = $stat['size'];
fclose($f);
} else {
$data = null;
$size = true;
}
if ($f !== false) {
$dataok = (Auth_OpenID::bytes($data) == $numbytes);
$ok = $dataok && !$size;
$msg .= 'It seems to exist ';
if ($dataok) {
$msg .= 'and be readable. Here is some hex data: ' .
bin2hex($data) . '.';
} else {
$msg .= 'but reading data failed.';
}
if ($size) {
$msg .= ' This is a ' . $size . ' byte file. Unless you know ' .
'what you are doing, it is likely that you are making a ' .
'mistake by using a regular file as a randomness source.';
}
} else {
$msg .= Auth_OpenID_RAND_SOURCE .
' could not be opened. This could be because of restrictions on' .
' your PHP environment or that randomness source may not exist' .
' on this platform.';
if (IS_WINDOWS) {
$msg .= ' You seem to be running Windows. This library does not' .
' have access to a good source of randomness on Windows.';
}
$ok = false;
}
$out .= $r->p($msg);
if (!$ok) {
$out .= $r->p(
'To set a source of randomness, define Auth_OpenID_RAND_SOURCE ' .
'to the path to the randomness source. If your platform does ' .
'not provide a secure randomness source, the library can' .
'operate in pseudorandom mode, but it is then vulnerable to ' .
'theoretical attacks. If you wish to operate in pseudorandom ' .
'mode, define Auth_OpenID_RAND_SOURCE to null.');
$out .= $r->p('You are running on:');
$out .= $r->pre(php_uname());
$out .= $r->p('There does not seem to be an available source ' .
'of randomness. On a Unix-like platform ' .
'(including MacOS X), try /dev/random and ' .
'/dev/urandom.');
}
return $ok;
}
function detect_stores($r, &$out)
{
$out .= $r->h2('Data storage');
$found = array();
foreach (array('sqlite', 'mysql', 'pgsql') as $dbext) {
if (extension_loaded($dbext) || @dl($dbext . '.' . PHP_SHLIB_SUFFIX)) {
$found[] = $dbext;
}
}
if (count($found) == 0) {
$text = 'No SQL database support was found in this PHP ' .
'installation. See the PHP manual if you need to ' .
'use an SQL database.';
} else {
$text = 'Support was found for ';
if (count($found) == 1) {
$text .= $found[0] . '.';
} else {
$last = array_pop($found);
$text .= implode(', ', $found) . ' and ' . $last . '.';
}
$text = $r->b($text);
}
$text .= ' The library supports the MySQL, PostgreSQL, and SQLite ' .
'database engines, as well as filesystem-based storage. In ' .
'addition, PEAR DB is required to use databases.';
$out .= $r->p($text);
if (function_exists('posix_getpwuid') &&
function_exists('posix_geteuid')) {
$processUser = posix_getpwuid(posix_geteuid());
$web_user = $r->b($r->tt($processUser['name']));
} else {
$web_user = 'the PHP process';
}
if (in_array('sqlite', $found)) {
$out .= $r->p('If you are using SQLite, your database must be ' .
'writable by ' . $web_user . ' and not available over' .
' the web.');
}
$basedir_str = ini_get('open_basedir');
if (gettype($basedir_str) == 'string') {
$url = 'http://www.php.net/manual/en/features.safe-mode.php' .
'#ini.open-basedir';
$lnk = $r->link($url, 'open_basedir');
$out .= $r->p('If you are using a filesystem-based store or SQLite, ' .
'be aware that ' . $lnk . ' is in effect. This means ' .
'that your data will have to be stored in one of the ' .
'following locations:');
$out .= $r->pre(var_export($basedir_str, true));
} else {
$out .= $r->p('The ' . $r->b($r->tt('open_basedir')) . ' configuration restriction ' .
'is not in effect.');
}
$out .= $r->p('If you are using the filesystem store, your ' .
'data directory must be readable and writable by ' .
$web_user . ' and not availabe over the Web.');
return true;
}
function detect_xml($r, &$out)
{
global $__Auth_Yadis_xml_extensions;
$out .= $r->h2('XML Support');
// Try to get an XML extension.
$ext = Auth_Yadis_getXMLParser();
if ($ext !== null) {
$out .= $r->p('XML parsing support is present using the '.
$r->b(get_class($ext)).' interface.');
return true;
} else {
$out .= $r->p('XML parsing support is absent; please install one '.
'of the following PHP extensions:');
foreach ($__Auth_Yadis_xml_extensions as $name => $cls) {
$out .= "<li>" . $r->b($name) . "</li>";
}
return false;
}
}
function detect_fetcher($r, &$out)
{
$out .= $r->h2('HTTP Fetching');
$result = @include 'Auth/Yadis/Yadis.php';
if (!$result) {
$out .= $r->p('Yadis code unavailable; could not test fetcher support.');
return false;
}
if (Auth_Yadis_Yadis::curlPresent()) {
$out .= $r->p('This PHP installation has support for libcurl. Good.');
} else {
$out .= $r->p('This PHP installation does not have support for ' .
'libcurl. CURL is not required but is recommended. '.
'The OpenID library will use an fsockopen()-based fetcher.');
$lnk = $r->link('http://us3.php.net/manual/en/ref.curl.php');
$out .= $r->p('See ' . $lnk . ' about enabling the libcurl support ' .
'for PHP.');
}
$ok = true;
$fetcher = Auth_Yadis_Yadis::getHTTPFetcher();
$fetch_url = 'http://www.openidenabled.com/resources/php-fetch-test';
$expected_url = $fetch_url . '.txt';
$result = $fetcher->get($fetch_url);
if (isset($result)) {
$parts = array('An HTTP request was completed.');
// list ($code, $url, $data) = $result;
if ($result->status != '200' && $result->status != '206') {
$ok = false;
$parts[] = $r->b(
sprintf(
'Got %s instead of the expected HTTP status ' .
'code (200 or 206).', $result->status));
}
$url = $result->final_url;
if ($url != $expected_url) {
$ok = false;
if ($url == $fetch_url) {
$msg = 'The redirected URL was not returned.';
} else {
$msg = 'An unexpected URL was returned: <' . $url . '>.';
}
$parts[] = $r->b($msg);
}
$data = $result->body;
if ($data != 'Hello World!') {
$ok = false;
$parts[] = $r->b('Unexpected data was returned.');
}
$out .= $r->p(implode(' ', $parts));
} else {
$ok = false;
$out .= $r->p('Fetching URL ' . $lnk . ' failed!');
}
if ($fetcher->supportsSSL()) {
$out .= $r->p('Your PHP installation appears to support SSL, so it ' .
'will be able to process HTTPS identity URLs and server URLs.');
} else {
$out .= $r->p('Your PHP installation does not support SSL, so it ' .
'will NOT be able to process HTTPS identity URLs and server URLs.');
}
return $ok;
}
header('Content-Type: ' . $r->contentType() . '; charset=us-ascii');
$title = 'OpenID Library Support Report';
$out = $r->start($title) .
$r->h1($title) .
$r->p('This script checks your PHP installation to determine if you ' .
'are set up to use the JanRain PHP OpenID library.');
$body = '';
$_include = include 'Auth/OpenID.php';
if (!$_include) {
$path = ini_get('include_path');
$body .= $r->p(
'Cannot find the OpenID library. It must be in your PHP include ' .
'path. Your PHP include path is currently:');
$body .= $r->pre($path);
} else {
$status = array();
$status[] = detect_math($r, $body);
$status[] = detect_random($r, $body);
$status[] = detect_stores($r, $body);
$status[] = detect_fetcher($r, $body);
$status[] = detect_xml($r, $body);
$result = true;
foreach ($status as $v) {
if (!$v) {
$result = false;
break;
}
}
if ($result) {
$out .= $r->h2('Setup Complete!');
$out .= $r->p('Your system should be ready to run the OpenID library.');
} else {
$out .= $r->h2('Setup Incomplete');
$out .= $r->p('Your system needs a few changes before it will be ready to run the OpenID library.');
}
}
$out .= $body . $r->end();
print $out;
?>