-
Notifications
You must be signed in to change notification settings - Fork 18
/
boot.php
2120 lines (1717 loc) · 56.6 KB
/
boot.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
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
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<?php
set_time_limit(0);
define ( 'BUILD_ID', 1030 );
define ( 'DFRN_PROTOCOL_VERSION', '2.0' );
define ( 'EOL', "<br />\r\n" );
define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
define ( 'DOWN_ARROW', '⇩' );
/**
* log levels
*/
define ( 'LOGGER_NORMAL', 0 );
define ( 'LOGGER_TRACE', 1 );
define ( 'LOGGER_DEBUG', 2 );
define ( 'LOGGER_DATA', 3 );
define ( 'LOGGER_ALL', 4 );
/**
* registration policies
*/
define ( 'REGISTER_CLOSED', 0 );
define ( 'REGISTER_APPROVE', 1 );
define ( 'REGISTER_OPEN', 2 );
/**
* relationship types
*/
define ( 'REL_VIP', 1);
define ( 'REL_FAN', 2);
define ( 'REL_BUD', 3);
/**
* Hook array order
*/
define ( 'HOOK_HOOK', 0);
define ( 'HOOK_FILE', 1);
define ( 'HOOK_FUNCTION', 2);
/**
*
* page/profile types
*
* PAGE_NORMAL is a typical personal profile account
* PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
* PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
* write access to wall and comments (no email and not included in page owner's ACL lists)
* PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
*
*/
define ( 'PAGE_NORMAL', 0 );
define ( 'PAGE_SOAPBOX', 1 );
define ( 'PAGE_COMMUNITY', 2 );
define ( 'PAGE_FREELOVE', 3 );
/**
* Maximum number of "people who like (or don't like) this" that we will list by name
*/
define ( 'MAX_LIKERS', 75);
/**
* email notification options
*/
define ( 'NOTIFY_INTRO', 0x0001 );
define ( 'NOTIFY_CONFIRM', 0x0002 );
define ( 'NOTIFY_WALL', 0x0004 );
define ( 'NOTIFY_COMMENT', 0x0008 );
define ( 'NOTIFY_MAIL', 0x0010 );
/**
* various namespaces we may need to parse
*/
define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
/**
* activity stream defines
*/
define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
/**
* item weight for query ordering
*/
define ( 'GRAVITY_PARENT', 0);
define ( 'GRAVITY_LIKE', 3);
define ( 'GRAVITY_COMMENT', 6);
/**
*
* Reverse the effect of magic_quotes_gpc if it is enabled.
* Please disable magic_quotes_gpc so we don't have to do this.
* See http://php.net/manual/en/security.magicquotes.disabling.php
*
*/
if (get_magic_quotes_gpc()) {
$process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
while (list($key, $val) = each($process)) {
foreach ($val as $k => $v) {
unset($process[$key][$k]);
if (is_array($v)) {
$process[$key][stripslashes($k)] = $v;
$process[] = &$process[$key][stripslashes($k)];
} else {
$process[$key][stripslashes($k)] = stripslashes($v);
}
}
}
unset($process);
}
/**
*
* class: App
*
* Our main application structure for the life of this page
* Primarily deals with the URL that got us here
* and tries to make some sense of it, and
* stores our page contents and config storage
* and anything else that might need to be passed around
* before we spit the page out.
*
*/
if(! class_exists('App')) {
class App {
public $module_loaded = false;
public $query_string;
public $config;
public $page;
public $profile;
public $user;
public $cid;
public $contact;
public $content;
public $data;
public $error = false;
public $cmd;
public $argv;
public $argc;
public $module;
public $pager;
public $strings;
public $path;
public $hooks;
public $interactive = true;
private $scheme;
private $hostname;
private $baseurl;
private $db;
private $curl_code;
private $curl_headers;
function __construct() {
$this->config = array();
$this->page = array();
$this->pager= array();
$this->query_string = '';
$this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
if(x($_SERVER,'SERVER_NAME'))
$this->hostname = $_SERVER['SERVER_NAME'];
set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
$this->query_string = substr($_SERVER['QUERY_STRING'],2);
if(x($_GET,'q'))
$this->cmd = trim($_GET['q'],'/\\');
/**
* Figure out if we are running at the top of a domain
* or in a sub-directory and adjust accordingly
*/
$path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
if(isset($path) && strlen($path) && ($path != $this->path))
$this->path = $path;
/**
*
* Break the URL path into C style argc/argv style arguments for our
* modules. Given "http://example.com/module/arg1/arg2", $this->argc
* will be 3 (integer) and $this->argv will contain:
* [0] => 'module'
* [1] => 'arg1'
* [2] => 'arg2'
*
*
* There will always be one argument. If provided a naked domain
* URL, $this->argv[0] is set to "home".
*
*/
$this->argv = explode('/',$this->cmd);
$this->argc = count($this->argv);
if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
$this->module = $this->argv[0];
}
else {
$this->module = 'home';
}
/**
* Special handling for the webfinger/lrdd host XRD file
* Just spit out the contents and exit.
*/
if($this->cmd === '.well-known/host-meta')
require_once('include/hostxrd.php');
/**
* See if there is any page number information, and initialise
* pagination
*/
$this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
$this->pager['itemspage'] = 50;
$this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
$this->pager['total'] = 0;
}
function get_baseurl($ssl = false) {
if(strlen($this->baseurl))
return $this->baseurl;
$this->baseurl = (($ssl) ? 'https' : $this->scheme) . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
return $this->baseurl;
}
function set_baseurl($url) {
$this->baseurl = $url;
$this->hostname = basename($url);
}
function get_hostname() {
return $this->hostname;
}
function set_hostname($h) {
$this->hostname = $h;
}
function set_path($p) {
$this->path = trim(trim($p),'/');
}
function get_path() {
return $this->path;
}
function set_pager_total($n) {
$this->pager['total'] = intval($n);
}
function set_pager_itemspage($n) {
$this->pager['itemspage'] = intval($n);
$this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
}
function init_pagehead() {
$this->page['title'] = $this->config['sitename'];
$tpl = load_view_file("view/head.tpl");
$this->page['htmlhead'] = replace_macros($tpl,array(
'$baseurl' => $this->get_baseurl() . '/'
));
}
function set_curl_code($code) {
$this->curl_code = $code;
}
function get_curl_code() {
return $this->curl_code;
}
function set_curl_headers($headers) {
$this->curl_headers = $headers;
}
function get_curl_headers() {
return $this->curl_headers;
}
}}
// retrieve the App structure
// useful in functions which require it but don't get it passed to them
if(! function_exists('get_app')) {
function get_app() {
global $a;
return $a;
}};
// Multi-purpose function to check variable state.
// Usage: x($var) or $x($array,'key')
// returns false if variable/key is not set
// if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
// e.g. x('') or x(0) returns 0;
if(! function_exists('x')) {
function x($s,$k = NULL) {
if($k != NULL) {
if((is_array($s)) && (array_key_exists($k,$s))) {
if($s[$k])
return (int) 1;
return (int) 0;
}
return false;
}
else {
if(isset($s)) {
if($s) {
return (int) 1;
}
return (int) 0;
}
return false;
}
}}
// called from db initialisation if db is dead.
if(! function_exists('system_unavailable')) {
function system_unavailable() {
include('system_unavailable.php');
killme();
}}
// Primarily involved with database upgrade, but also sets the
// base url for use in cmdline programs which don't have
// $_SERVER variables, and synchronising the state of installed plugins.
if(! function_exists('check_config')) {
function check_config(&$a) {
load_config('system');
$build = get_config('system','build');
if(! x($build))
$build = set_config('system','build',BUILD_ID);
$url = get_config('system','url');
if(! x($url))
$url = set_config('system','url',$a->get_baseurl());
if($build != BUILD_ID) {
$stored = intval($build);
$current = intval(BUILD_ID);
if(($stored < $current) && file_exists('update.php')) {
// We're reporting a different version than what is currently installed.
// Run any existing update scripts to bring the database up to current.
require_once('update.php');
for($x = $stored; $x < $current; $x ++) {
if(function_exists('update_' . $x)) {
$func = 'update_' . $x;
$func($a);
}
}
set_config('system','build', BUILD_ID);
}
}
/**
*
* Synchronise plugins:
*
* $a->config['system']['addon'] contains a comma-separated list of names
* of plugins/addons which are used on this system.
* Go through the database list of already installed addons, and if we have
* an entry, but it isn't in the config list, call the uninstall procedure
* and mark it uninstalled in the database (for now we'll remove it).
* Then go through the config list and if we have a plugin that isn't installed,
* call the install procedure and add it to the database.
*
*/
$r = q("SELECT * FROM `addon` WHERE `installed` = 1");
if(count($r))
$installed = $r;
else
$installed = array();
$plugins = get_config('system','addon');
$plugins_arr = array();
if($plugins)
$plugins_arr = explode(',',str_replace(' ', '',$plugins));
$installed_arr = array();
if(count($installed)) {
foreach($installed as $i) {
if(! in_array($i['name'],$plugins_arr)) {
logger("Addons: uninstalling " . $i['name']);
q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
intval($i['id'])
);
@include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
if(function_exists($i['name'] . '_uninstall')) {
$func = $i['name'] . '_uninstall';
$func();
}
}
else
$installed_arr[] = $i['name'];
}
}
if(count($plugins_arr)) {
foreach($plugins_arr as $p) {
if(! in_array($p,$installed_arr)) {
logger("Addons: installing " . $p);
@include_once('addon/' . $p . '/' . $p . '.php');
if(function_exists($p . '_install')) {
$func = $p . '_install';
$func();
$r = q("INSERT INTO `addon` (`name`, `installed`) VALUES ( '%s', 1 ) ",
dbesc($p)
);
}
}
}
}
return;
}}
// This is our template processor.
// $s is the string requiring macro substitution.
// $r is an array of key value pairs (search => replace)
// returns substituted string.
// WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
// For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
// depending on the order in which they were declared in the array.
if(! function_exists('replace_macros')) {
function replace_macros($s,$r) {
$search = array();
$replace = array();
if(is_array($r) && count($r)) {
foreach ($r as $k => $v ) {
$search[] = $k;
$replace[] = $v;
}
}
return str_replace($search,$replace,$s);
}}
// load string translation table for alternate language
if(! function_exists('load_translation_table')) {
function load_translation_table($lang) {
global $a;
if(file_exists("view/$lang/strings.php"))
include("view/$lang/strings.php");
}}
// translate string if translation exists
if(! function_exists('t')) {
function t($s) {
$a = get_app();
if(x($a->strings,$s))
return $a->strings[$s];
return $s;
}}
// curl wrapper. If binary flag is true, return binary
// results.
if(! function_exists('fetch_url')) {
function fetch_url($url,$binary = false, &$redirects = 0) {
$a = get_app();
$ch = curl_init($url);
if(($redirects > 8) || (! $ch))
return false;
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
$curl_time = intval(get_config('system','curl_timeout'));
curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
// by default we will allow self-signed certs
// but you can override this
$check_cert = get_config('system','verifyssl');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
$prx = get_config('system','proxy');
if(strlen($prx)) {
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
curl_setopt($ch, CURLOPT_PROXY, $prx);
$prxusr = get_config('system','proxyuser');
if(strlen($prxusr))
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
}
if($binary)
curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
$a->set_curl_code(0);
// don't let curl abort the entire application
// if it throws any errors.
$s = @curl_exec($ch);
$http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
$header = substr($s,0,strpos($s,"\r\n\r\n"));
if(stristr($header,'100') && (strlen($header) < 30)) {
// 100 Continue has two headers, get the real one
$s = substr($s,strlen($header)+4);
$header = substr($s,0,strpos($s,"\r\n\r\n"));
}
if($http_code == 301 || $http_code == 302 || $http_code == 303) {
$matches = array();
preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
$url = trim(array_pop($matches));
$url_parsed = parse_url($url);
if (isset($url_parsed)) {
$redirects++;
return fetch_url($url,$binary,$redirects);
}
}
$a->set_curl_code($http_code);
$body = substr($s,strlen($header)+4);
$a->set_curl_headers($header);
curl_close($ch);
return($body);
}}
// post request to $url. $params is an array of post variables.
if(! function_exists('post_url')) {
function post_url($url,$params, $headers = null, &$redirects = 0) {
$a = get_app();
$ch = curl_init($url);
if(($redirects > 8) || (! $ch))
return false;
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
$curl_time = intval(get_config('system','curl_timeout'));
curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
if(is_array($headers))
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$check_cert = get_config('system','verifyssl');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
$prx = get_config('system','proxy');
if(strlen($prx)) {
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
curl_setopt($ch, CURLOPT_PROXY, $prx);
$prxusr = get_config('system','proxyuser');
if(strlen($prxusr))
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
}
$a->set_curl_code(0);
// don't let curl abort the entire application
// if it throws any errors.
$s = @curl_exec($ch);
$http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
$header = substr($s,0,strpos($s,"\r\n\r\n"));
if(stristr($header,'100') && (strlen($header) < 30)) {
// 100 Continue has two headers, get the real one
$s = substr($s,strlen($header)+4);
$header = substr($s,0,strpos($s,"\r\n\r\n"));
}
if($http_code == 301 || $http_code == 302 || $http_code == 303) {
$matches = array();
preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
$url = trim(array_pop($matches));
$url_parsed = parse_url($url);
if (isset($url_parsed)) {
$redirects++;
return post_url($url,$binary,$headers,$redirects);
}
}
$a->set_curl_code($http_code);
$body = substr($s,strlen($header)+4);
$a->set_curl_headers($header);
curl_close($ch);
return($body);
}}
// random hash, 64 chars
if(! function_exists('random_string')) {
function random_string() {
return(hash('sha256',uniqid(rand(),true)));
}}
/**
* This is our primary input filter.
*
* The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
* that had an XSS attack vector due to stripping the high-bit on an 8-bit character
* after cleansing, and angle chars with the high bit set could get through as markup.
*
* This is now disabled because it was interfering with some legitimate unicode sequences
* and hopefully there aren't a lot of those browsers left.
*
* Use this on any text input where angle chars are not valid or permitted
* They will be replaced with safer brackets. This may be filtered further
* if these are not allowed either.
*
*/
if(! function_exists('notags')) {
function notags($string) {
return(str_replace(array("<",">"), array('[',']'), $string));
// High-bit filter no longer used
// return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
}}
// use this on "body" or "content" input where angle chars shouldn't be removed,
// and allow them to be safely displayed.
if(! function_exists('escape_tags')) {
function escape_tags($string) {
return(htmlspecialchars($string));
}}
// wrapper for adding a login box. If $register == true provide a registration
// link. This will most always depend on the value of $a->config['register_policy'].
// returns the complete html for inserting into the page
if(! function_exists('login')) {
function login($register = false) {
$o = "";
$register_html = (($register) ? load_view_file("view/register-link.tpl") : "");
$noid = get_config('system','no_openid');
if($noid) {
$classname = 'no-openid';
$namelabel = t('Nickname or Email address: ');
$passlabel = t('Password: ');
$login = t('Login');
}
else {
$classname = 'openid';
$namelabel = t('Nickname/Email/OpenID: ');
$passlabel = t("Password \x28if not OpenID\x29: ");
$login = t('Login');
}
$lostpass = t('Forgot your password?');
$lostlink = t('Password Reset');
if(x($_SESSION,'authenticated')) {
$tpl = load_view_file("view/logout.tpl");
}
else {
$tpl = load_view_file("view/login.tpl");
}
$o = replace_macros($tpl,array(
'$register_html' => $register_html,
'$classname' => $classname,
'$namelabel' => $namelabel,
'$passlabel' => $passlabel,
'$login' => $login,
'$lostpass' => $lostpass,
'$lostlink' => $lostlink
));
return $o;
}}
// generate a string that's random, but usually pronounceable.
// used to generate initial passwords
if(! function_exists('autoname')) {
function autoname($len) {
$vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
if(mt_rand(0,5) == 4)
$vowels[] = 'y';
$cons = array(
'b','bl','br',
'c','ch','cl','cr',
'd','dr',
'f','fl','fr',
'g','gh','gl','gr',
'h',
'j',
'k','kh','kl','kr',
'l',
'm',
'n',
'p','ph','pl','pr',
'qu',
'r','rh',
's','sc','sh','sm','sp','st',
't','th','tr',
'v',
'w','wh',
'x',
'z','zh'
);
$midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
'nd','ng','nk','nt','rn','rp','rt');
$noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
$start = mt_rand(0,2);
if($start == 0)
$table = $vowels;
else
$table = $cons;
$word = '';
for ($x = 0; $x < $len; $x ++) {
$r = mt_rand(0,count($table) - 1);
$word .= $table[$r];
if($table == $vowels)
$table = array_merge($cons,$midcons);
else
$table = $vowels;
}
$word = substr($word,0,$len);
foreach($noend as $noe) {
if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
$word = substr($word,0,-1);
break;
}
}
if(substr($word,-1) == 'q')
$word = substr($word,0,-1);
return $word;
}}
// Used to end the current process, after saving session state.
if(! function_exists('killme')) {
function killme() {
session_write_close();
exit;
}}
// redirect to another URL and terminate this process.
if(! function_exists('goaway')) {
function goaway($s) {
header("Location: $s");
killme();
}}
// Generic XML return
// Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
// of $st and an optional text <message> of $message and terminates the current process.
if(! function_exists('xml_status')) {
function xml_status($st, $message = '') {
$xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
if($st)
logger('xml_status returning non_zero: ' . $st . " message=" . $message);
header( "Content-type: text/xml" );
echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
killme();
}}
// Returns the uid of locally logged in user or false.
if(! function_exists('local_user')) {
function local_user() {
if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
return intval($_SESSION['uid']);
return false;
}}
// Returns contact id of authenticated site visitor or false
if(! function_exists('remote_user')) {
function remote_user() {
if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
return intval($_SESSION['visitor_id']);
return false;
}}
// contents of $s are displayed prominently on the page the next time
// a page is loaded. Usually used for errors or alerts.
if(! function_exists('notice')) {
function notice($s) {
$a = get_app();
if($a->interactive)
$_SESSION['sysmsg'] .= $s;
}}
// wrapper around config to limit the text length of an incoming message
if(! function_exists('get_max_import_size')) {
function get_max_import_size() {
global $a;
return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
}}
// escape text ($str) for XML transport
// returns escaped text.
if(! function_exists('xmlify')) {
function xmlify($str) {
$buffer = '';
for($x = 0; $x < strlen($str); $x ++) {
$char = $str[$x];
switch( $char ) {
case "\r" :
break;
case "&" :
$buffer .= '&';
break;
case "'" :
$buffer .= ''';
break;
case "\"" :
$buffer .= '"';
break;
case '<' :
$buffer .= '<';
break;
case '>' :
$buffer .= '>';
break;
case "\n" :
$buffer .= "\n";
break;
default :
$buffer .= $char;
break;
}
}
$buffer = trim($buffer);
return($buffer);
}}
// undo an xmlify
// pass xml escaped text ($s), returns unescaped text
if(! function_exists('unxmlify')) {
function unxmlify($s) {
$ret = str_replace('&','&', $s);
$ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
return $ret;
}}
// convenience wrapper, reverse the operation "bin2hex"
if(! function_exists('hex2bin')) {
function hex2bin($s) {
return(pack("H*",$s));
}}
// Automatic pagination.
// To use, get the count of total items.
// Then call $a->set_pager_total($number_items);
// Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
// Then call paginate($a) after the end of the display loop to insert the pager block on the page
// (assuming there are enough items to paginate).
// When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
// will limit the results to the correct items for the current page.
// The actual page handling is then accomplished at the application layer.
if(! function_exists('paginate')) {
function paginate(&$a) {
$o = '';
$stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
$stripped = str_replace('q=','',$stripped);
$stripped = trim($stripped,'/');
$url = $a->get_baseurl() . '/' . $stripped;
if($a->pager['total'] > $a->pager['itemspage']) {
$o .= '<div class="pager">';
if($a->pager['page'] != 1)
$o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
$o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
$numpages = $a->pager['total'] / $a->pager['itemspage'];
$numstart = 1;
$numstop = $numpages;
if($numpages > 14) {
$numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
$numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
}
for($i = $numstart; $i <= $numstop; $i++){
if($i == $a->pager['page'])
$o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
else
$o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
$o .= '</span> ';
}
if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
if($i == $a->pager['page'])
$o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
else
$o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
$o .= '</span> ';
}