-
-
Notifications
You must be signed in to change notification settings - Fork 110
Expand file tree
/
Copy pathcomment.php
More file actions
701 lines (576 loc) · 18.4 KB
/
Copy pathcomment.php
File metadata and controls
701 lines (576 loc) · 18.4 KB
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
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
<?php
/*
* Textpattern Content Management System
* https://textpattern.com/
*
* Copyright (C) 2026 The Textpattern Development Team
*
* This file is part of Textpattern.
*
* Textpattern is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* Textpattern is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Textpattern. If not, see <https://www.gnu.org/licenses/>.
*/
/**
* Collection of comment tools.
*
* @package Comment
*/
/**
* Gets comments as an array from the given article.
*
* @param int $id The article ID
* @return array|null An array of comments, or NULL on error
* @example
* if ($comments = fetchComments(12))
* {
* print_r($comments);
* }
*/
function fetchComments($id)
{
$rs = safe_rows(
"*, TIMESTAMPDIFF(SECOND, COALESCE(FROM_UNIXTIME(0), FROM_UNIXTIME(1)), posted) AS time",
'txp_discuss',
"parentid = " . intval($id) . " AND visible = " . VISIBLE . " ORDER BY posted ASC"
);
if ($rs) {
return $rs;
}
}
/**
* Gets next nonce.
*
* @param bool $check_only
* @return string A random MD5 hash
*/
function getNextNonce($check_only = false)
{
static $nonce = '';
if (!$nonce && !$check_only) {
$nonce = md5(uniqid(rand(), true));
}
return $nonce;
}
/**
* Gets next secret.
*
* @param bool $check_only
* @return string A random MD5 hash
*/
function getNextSecret($check_only = false)
{
static $secret = '';
if (!$secret && !$check_only) {
$secret = md5(uniqid(rand(), true));
}
return $secret;
}
/**
* Remembers comment form values.
*
* Creates a HTTP cookie for each value.
*
* @param string $name The name
* @param string $email The email address
* @param string $web The website
*/
function setCookies($name, $email, $web)
{
$cookietime = time() + (365 * 24 * 3600);
ob_start();
set_cookie("txp_name", $name, array('expires' => $cookietime, 'path' => '/'));
set_cookie("txp_email", $email, array('expires' => $cookietime, 'path' => '/'));
set_cookie("txp_web", $web, array('expires' => $cookietime, 'path' => '/'));
set_cookie("txp_last", date("H:i d/m/Y"), array('expires' => $cookietime, 'path' => '/'));
set_cookie("txp_remember", '1', array('expires' => $cookietime, 'path' => '/'));
}
/**
* Deletes HTTP cookies created by the comment form.
*/
function destroyCookies()
{
$cookietime = time() - 3600;
ob_start();
set_cookie("txp_name", '', array('expires' => $cookietime, 'path' => '/'));
set_cookie("txp_email", '', array('expires' => $cookietime, 'path' => '/'));
set_cookie("txp_web", '', array('expires' => $cookietime, 'path' => '/'));
set_cookie("txp_last", '', array('expires' => $cookietime, 'path' => '/'));
set_cookie("txp_remember", '', array('expires' => $cookietime, 'path' => '/'));
}
/**
* Gets the received comment.
*
* Comment spam filter plugins should call this function to fetch
* comment contents.
*
* @return array
* @example
* print_r(
* getComment()
* );
*/
function getComment($obfuscated = false)
{
$c = psa(array(
'parentid',
'name',
'email',
'web',
'message',
'backpage',
'remember',
));
$n = array();
foreach (stripPost() as $k => $v) {
if (preg_match('#^[A-Fa-f0-9]{32}$#', $k . $v)) {
$n[] = doSlash($k . $v);
}
}
$c['nonce'] = '';
$c['secret'] = '';
if (!empty($n)) {
$rs = safe_row("nonce, secret", 'txp_discuss_nonce', "nonce IN ('" . join("','", $n) . "')");
$c['nonce'] = $rs['nonce'];
$c['secret'] = $rs['secret'];
}
if ($obfuscated || $c['message'] == '') {
$c['message'] = ps(md5('message' . $c['secret']));
}
$c['name'] = trim(strip_tags(deEntBrackets($c['name'])));
$c['web'] = trim(clean_url(strip_tags(deEntBrackets($c['web']))));
$c['email'] = trim(clean_url(strip_tags(deEntBrackets($c['email']))));
$c['message'] = trim(substr(trim(doDeEnt($c['message'])), 0, 65535));
return $c;
}
/**
* Saves a comment.
*/
function saveComment()
{
global $comments_moderate, $comments_sendmail, $comments_disallow_images, $prefs;
$ref = serverset('HTTP_REFERRER');
$comment = getComment(true);
$evaluator = & get_comment_evaluator();
extract($comment);
if (!checkCommentsAllowed($parentid)) {
txp_die(gTxt('comments_closed'), '403');
}
$ip = serverset('REMOTE_ADDR');
$blocklist = is_blocklisted($ip);
if ($blocklist) {
txp_die(gTxt('your_ip_is_blocklisted_by', array('{list}' => $blocklist)), '403');
}
if ($remember == 1 || ps('checkbox_type') == 'forget' && ps('forget') != 1) {
setCookies($name, $email, $web);
} else {
destroyCookies();
}
$message2db = markup_comment($message);
$isdup = safe_row(
"message, name",
'txp_discuss',
"name = '" . doSlash($name) . "' AND message = '" . doSlash($message2db) . "'"
);
checkCommentRequired($comment);
if ($isdup) {
$evaluator->add_estimate(RELOAD, 1, gTxt('comment_duplicate'));
}
if (($evaluator->get_result() != RELOAD) && checkNonce($nonce)) {
callback_event('comment.save');
$visible = $evaluator->get_result();
if ($visible != RELOAD) {
$parentid = assert_int($parentid);
$commentid = safe_insert(
'txp_discuss',
"parentid = $parentid,
name = '" . doSlash($name) . "',
email = '" . doSlash($email) . "',
web = '" . doSlash($web) . "',
message = '" . doSlash($message2db) . "',
visible = " . intval($visible) . ",
posted = NOW()"
);
if ($commentid) {
safe_update('txp_discuss_nonce', "used = 1", "nonce = '" . doSlash($nonce) . "'");
if ($prefs['comment_means_site_updated']) {
update_lastmod('comment_saved', compact('commentid', 'parentid', 'name', 'email', 'web', 'message', 'visible', 'ip'));
}
callback_event('comment.saved', '', false, compact(
'message',
'name',
'email',
'web',
'parentid',
'commentid',
'ip',
'visible'
));
mail_comment($message, $name, $email, $web, $parentid, $commentid);
$updated = update_comments_count($parentid);
$backpage = substr($backpage, 0, $prefs['max_url_len']);
$backpage = preg_replace("/[\x0a\x0d#].*$/s", '', $backpage);
$backpage = preg_replace("#(https?://[^/]+)/.*$#", "$1", hu) . $backpage;
if (defined('PARTLY_MESSY') and (PARTLY_MESSY)) {
$backpage = permlinkurl_id($parentid);
}
$backpage .= ((strstr($backpage, '?')) ? '&' : '?') . 'commented=' . (($visible == VISIBLE) ? '1' : '0');
txp_status_header('302 Found');
if ($comments_moderate && !is_logged_in()) {
header('Location: ' . $backpage . '#txpCommentInputForm');
} else {
header('Location: ' . $backpage . '#c' . sprintf("%06s", $commentid));
}
log_hit('302');
$evaluator->write_trace();
exit;
}
}
}
// Force another Preview.
$_POST['preview'] = RELOAD;
//$evaluator->write_trace();
}
/**
* Checks if all required comment fields are filled out.
*
* To be used only by TXP itself
*
* @param array comment fields (from getComment())
*/
function checkCommentRequired($comment)
{
global $prefs;
$evaluator = & get_comment_evaluator();
if ($prefs['comments_require_name'] && !$comment['name']) {
$evaluator->add_estimate(RELOAD, 1, gTxt('comment_name_required'));
}
if ($prefs['comments_require_email'] && !$comment['email']) {
$evaluator->add_estimate(RELOAD, 1, gTxt('comment_email_required'));
}
if (!$comment['message']) {
$evaluator->add_estimate(RELOAD, 1, gTxt('comment_required'));
}
}
/**
* Comment evaluator.
*
* Validates and filters comments. Keeps out spam.
*
* @package Comment
*/
class comment_evaluation
{
/**
* Stores estimated statuses.
*
* @var array
*/
public $status;
/**
* Stores estimated messages.
*
* @var array
*/
public $message;
/**
* Debug log.
*
* @var array
*/
public $txpspamtrace = array();
/**
* List of available statuses.
*
* @var array
*/
public $status_text = array();
/**
* Constructor.
*/
public function __construct()
{
global $prefs;
extract(getComment());
$this->status = array(
SPAM => array(),
MODERATE => array(),
VISIBLE => array(),
RELOAD => array(),
);
$this->status_text = array(
SPAM => gTxt('spam'),
MODERATE => gTxt('unmoderated'),
VISIBLE => gTxt('visible'),
RELOAD => gTxt('reload'),
);
$this->message = $this->status;
$this->txpspamtrace[] = "Comment on $parentid by $name (" . safe_strftime($prefs['archive_dateformat'], time()) . ")";
if ($prefs['comments_moderate'] && !is_logged_in()) {
$this->status[MODERATE][] = 0.5;
} else {
$this->status[VISIBLE][] = 0.5;
}
}
/**
* Adds an estimate about the comment's status.
*
* @param int $type The status, either SPAM, MODERATE, VISIBLE or RELOAD
* @param float $probability Estimates probability - throughout 0 to 1, e.g. 0.75
* @param string $msg The error or success message shown to the user
* @example
* $evaluator =& get_comment_evaluator();
* $evaluator->add_estimate(RELOAD, 1, 'Message');
*/
public function add_estimate($type = SPAM, $probability = 0.75, $msg = '')
{
global $production_status;
if (!array_key_exists($type, $this->status)) {
trigger_error(gTxt('unknown_spam_estimate'), E_USER_WARNING);
}
$this->txpspamtrace[] = " $type; " . max(0, min(1, $probability)) . "; $msg";
//FIXME trace is only viewable for RELOADS. Maybe add info to HTTP-Headers in debug-mode
$this->status[$type][] = max(0, min(1, $probability));
if (trim($msg)) {
$this->message[$type][] = $msg;
}
}
/**
* Gets resulting estimated status.
*
* @param string $result_type If 'numeric' returns the ID of the status, a localised label otherwise
* @return int|string
* @example
* $evaluator =& get_comment_evaluator();
* print_r(
* $evaluator->get_result()
* );
*/
public function get_result($result_type = 'numeric')
{
$result = array();
foreach ($this->status as $key => $value) {
$result[$key] = array_sum($value) / max(1, count($value));
}
arsort($result, SORT_NUMERIC);
reset($result);
return (($result_type == 'numeric') ? key($result) : $this->status_text[key($result)]);
}
/**
* Gets resulting success or error message.
*
* @return array
* @example
* $evaluator =& get_comment_evaluator();
* echo $evaluator->get_result_message();
*/
public function get_result_message()
{
return $this->message[$this->get_result()];
}
/**
* Writes a debug log.
*/
public function write_trace()
{
global $prefs;
$file = $prefs['tempdir'] . DS . 'evaluator_trace.php';
if (!file_exists($file)) {
$fp = fopen($file, 'wb');
if ($fp) {
fwrite($fp, "<?php return; ?>\n" .
"This trace-file tracks saved comments. (created " . safe_strftime($prefs['archive_dateformat'], time()) . ")\n" .
"Format is: Type; Probability; Message (Type can be -1 => spam, 0 => moderate, 1 => visible)\n\n");
}
} else {
$fp = fopen($file, 'ab');
}
if ($fp) {
fwrite($fp, implode("\n", $this->txpspamtrace));
fwrite($fp, "\n RESULT: " . $this->get_result() . "\n\n");
fclose($fp);
}
}
}
/**
* Gets a comment evaluator instance.
*
* @return comment_evaluation
*/
function &get_comment_evaluator()
{
static $instance;
// If the instance is not there, create one
if (!isset($instance)) {
$instance = new comment_evaluation();
}
return $instance;
}
/**
* Verifies a given nonce.
*
* This function will also do clean up and deletes expired nonces.
*
* @param string $nonce The nonce
* @return bool TRUE if the nonce is valid
* @see getNextNonce()
*/
function checkNonce($nonce)
{
if (!$nonce || !preg_match('#^[a-zA-Z0-9]*$#', $nonce)) {
return false;
}
// Delete expired nonces.
safe_delete('txp_discuss_nonce', "issue_time < DATE_SUB(NOW(), INTERVAL 10 MINUTE)");
// Check for nonce.
return (safe_row("*", 'txp_discuss_nonce', "nonce = '" . doSlash($nonce) . "' AND used = 0")) ? true : false;
}
/**
* Checks if comments are open for the given article.
*
* @param int $id The article.
* @return bool FALSE if comments are closed
* @example
* if (checkCommentsAllowed(12))
* {
* echo "Article accepts comments";
* }
*/
function checkCommentsAllowed($id)
{
global $use_comments, $comments_disabled_after, $thisarticle;
$id = intval($id);
if (!$use_comments || !$id) {
return false;
}
if (isset($thisarticle['thisid']) && ($thisarticle['thisid'] == $id) && isset($thisarticle['annotate'])) {
$Annotate = $thisarticle['annotate'];
$uPosted = $thisarticle['posted'];
} else {
extract(
safe_row(
"Annotate, TIMESTAMPDIFF(SECOND, COALESCE(FROM_UNIXTIME(0), FROM_UNIXTIME(1)), Posted) AS uPosted",
'textpattern',
"ID = $id"
)
);
}
if (empty($Annotate)) {
return false;
}
if ($comments_disabled_after) {
$lifespan = ($comments_disabled_after * 86400);
$timesince = (time() - $uPosted);
return ($lifespan > $timesince);
}
return true;
}
/**
* Renders a Textile help link.
*
* @return string HTML
*/
function comments_help()
{
return '<a id="txpCommentHelpLink" rel="external" target="_blank" href="' . HELP_URL . '">' . gTxt('textile_help') . '</a>';
}
/**
* Emails a new comment to the article's author.
*
* This function can only be executed directly after a comment was sent,
* otherwise it will not run properly.
*
* Will not send comments flagged as spam, and follows site's
* comment preferences.
*
* @param string $message The comment message
* @param string $cname The comment name
* @param string $cemail The comment email
* @param string $cweb The comment website
* @param int $parentid The article ID
* @param int $discussid The comment ID
*/
function mail_comment($message, $cname, $cemail, $cweb, $parentid, $discussid)
{
global $sitename, $comments_sendmail;
if (!$comments_sendmail) {
return;
}
$evaluator = & get_comment_evaluator();
if ($comments_sendmail == 2 && $evaluator->get_result() == SPAM) {
return;
}
$parentid = assert_int($parentid);
$discussid = assert_int($discussid);
$article = safe_row("Section, Posted, ID, url_title, AuthorID, Title", 'textpattern', "ID = $parentid");
extract($article);
$safeAuthor = doSlash($AuthorID);
extract(safe_row("RealName, email", 'txp_users', "name = '$safeAuthor'"));
// Override language strings if indicated.
$adminLang = safe_field('val', 'txp_prefs', "name='language_ui' AND user_name = '$safeAuthor'");
$txpLang = Txp::get('\Textpattern\L10n\Lang');
$installed = $txpLang->installed();
$adminLang = in_array($adminLang, $installed) ? $adminLang : LANG;
$txpLang->swapStrings($adminLang, 'common, public');
$out = gTxt('salutation', array('{name}' => $RealName)) . n;
$out .= str_replace('{title}', $Title, gTxt('comment_recorded')) . n;
$out .= permlinkurl_id($parentid) . n;
if (has_privs('discuss', $AuthorID)) {
$out .= ahu . 'index.php?event=discuss&step=discuss_edit&discussid=' . $discussid . n;
}
$out .= gTxt('status') . ": " . $evaluator->get_result('text') . '. ' . implode(',', $evaluator->get_result_message()) . n;
$out .= n;
$out .= gTxt('comment_name') . ": $cname" . n;
$out .= gTxt('comment_email') . ": $cemail" . n;
$out .= gTxt('comment_web') . ": $cweb" . n;
$out .= gTxt('comment_comment') . ": $message";
$subject = strtr(gTxt('comment_received'), array(
'{site}' => $sitename,
'{title}' => $Title,
));
if (!is_valid_email($cemail)) {
$cemail = null;
}
$txpLang->swapStrings(null);
$success = txpMail($email, $subject, $out, $cemail);
}
/**
* Renders a HTML input.
*
* Deprecated, use fInput() instead.
*
* @param string $type
* @param string $name
* @param string $val
* @param int $size
* @param string $class
* @param int $tab
* @param bool $chkd
* @return string
* @deprecated in 4.0.4
* @see fInput()
*/
function input($type, $name, $val, $size = '', $class = '', $tab = '', $chkd = '')
{
trigger_error(gTxt('deprecated_function_with', array(
'{name}' => __FUNCTION__,
'{with}' => 'fInput',
)), E_USER_NOTICE);
$o = array(
'<input type="' . $type . '" name="' . $name . '" id="' . $name . '" value="' . $val . '"',
($size) ? ' size="' . $size . '"' : '',
($class) ? ' class="' . $class . '"' : '',
($tab) ? ' tabindex="' . $tab . '"' : '',
($chkd) ? ' checked="checked"' : '',
(get_pref('doctype') === 'html5' ? '>' : ' />') . n,
);
return join('', $o);
}