]> git.mxchange.org Git - friendica.git/blob - boot.php
Merge branch 'master', remote-tracking branch 'remotes/upstream/master'
[friendica.git] / boot.php
1 <?php
2
3 require_once('include/config.php');
4 require_once('include/network.php');
5 require_once('include/plugin.php');
6 require_once('include/text.php');
7 require_once('include/pgettext.php');
8 require_once('include/nav.php');
9 require_once('include/cache.php');
10
11 define ( 'FRIENDICA_PLATFORM',     'Friendica');
12 define ( 'FRIENDICA_VERSION',      '3.0.1355' );
13 define ( 'DFRN_PROTOCOL_VERSION',  '2.23'    );
14 define ( 'DB_UPDATE_VERSION',      1144      );
15
16 define ( 'EOL',                    "<br />\r\n"     );
17 define ( 'ATOM_TIME',              'Y-m-d\TH:i:s\Z' );
18
19
20 /**
21  *
22  * Image storage quality. Lower numbers save space at cost of image detail.
23  * For ease of upgrade, please do not change here. Change jpeg quality with
24  * $a->config['system']['jpeg_quality'] = n;
25  * in .htconfig.php, where n is netween 1 and 100, and with very poor results
26  * below about 50
27  *
28  */
29
30 define ( 'JPEG_QUALITY',            100  );
31
32 /**
33  * Not yet used
34  */
35
36 define ( 'DEFAULT_DB_ENGINE',  'MyISAM'  );
37
38 /**
39  * SSL redirection policies
40  */
41
42 define ( 'SSL_POLICY_NONE',         0 );
43 define ( 'SSL_POLICY_FULL',         1 );
44 define ( 'SSL_POLICY_SELFSIGN',     2 );
45
46
47 /**
48  * log levels
49  */
50
51 define ( 'LOGGER_NORMAL',          0 );
52 define ( 'LOGGER_TRACE',           1 );
53 define ( 'LOGGER_DEBUG',           2 );
54 define ( 'LOGGER_DATA',            3 );
55 define ( 'LOGGER_ALL',             4 );
56
57 /**
58  * registration policies
59  */
60
61 define ( 'REGISTER_CLOSED',        0 );
62 define ( 'REGISTER_APPROVE',       1 );
63 define ( 'REGISTER_OPEN',          2 );
64
65 /**
66  * relationship types
67  */
68
69 define ( 'CONTACT_IS_FOLLOWER', 1);
70 define ( 'CONTACT_IS_SHARING',  2);
71 define ( 'CONTACT_IS_FRIEND',   3);
72
73
74 /**
75  * Hook array order
76  */
77
78 define ( 'HOOK_HOOK',      0);
79 define ( 'HOOK_FILE',      1);
80 define ( 'HOOK_FUNCTION',  2);
81
82 /**
83  * DB update return values
84  */
85
86 define ( 'UPDATE_SUCCESS', 0);
87 define ( 'UPDATE_FAILED',  1);
88
89
90 /**
91  *
92  * page/profile types
93  *
94  * PAGE_NORMAL is a typical personal profile account
95  * PAGE_SOAPBOX automatically approves all friend requests as CONTACT_IS_SHARING, (readonly)
96  * PAGE_COMMUNITY automatically approves all friend requests as CONTACT_IS_SHARING, but with
97  *      write access to wall and comments (no email and not included in page owner's ACL lists)
98  * PAGE_FREELOVE automatically approves all friend requests as full friends (CONTACT_IS_FRIEND).
99  *
100  */
101
102 define ( 'PAGE_NORMAL',            0 );
103 define ( 'PAGE_SOAPBOX',           1 );
104 define ( 'PAGE_COMMUNITY',         2 );
105 define ( 'PAGE_FREELOVE',          3 );
106 define ( 'PAGE_BLOG',              4 );
107 define ( 'PAGE_PRVGROUP',          5 );
108
109 /**
110  * Network and protocol family types
111  */
112
113 define ( 'NETWORK_DFRN',             'dfrn');    // Friendica, Mistpark, other DFRN implementations
114 define ( 'NETWORK_ZOT',              'zot!');    // Zot!
115 define ( 'NETWORK_OSTATUS',          'stat');    // status.net, identi.ca, GNU-social, other OStatus implementations
116 define ( 'NETWORK_FEED',             'feed');    // RSS/Atom feeds with no known "post/notify" protocol
117 define ( 'NETWORK_DIASPORA',         'dspr');    // Diaspora
118 define ( 'NETWORK_MAIL',             'mail');    // IMAP/POP
119 define ( 'NETWORK_MAIL2',            'mai2');    // extended IMAP/POP
120 define ( 'NETWORK_FACEBOOK',         'face');    // Facebook API
121 define ( 'NETWORK_LINKEDIN',         'lnkd');    // LinkedIn
122 define ( 'NETWORK_XMPP',             'xmpp');    // XMPP
123 define ( 'NETWORK_MYSPACE',          'mysp');    // MySpace
124 define ( 'NETWORK_GPLUS',            'goog');    // Google+
125
126 define ( 'NETWORK_PHANTOM',          'unkn');    // Place holder
127
128 /**
129  * These numbers are used in stored permissions
130  * and existing allocations MUST NEVER BE CHANGED
131  * OR RE-ASSIGNED! You may only add to them.
132  */
133
134 $netgroup_ids = array(
135         NETWORK_DFRN     => (-1),
136         NETWORK_ZOT      => (-2),
137         NETWORK_OSTATUS  => (-3),
138         NETWORK_FEED     => (-4),
139         NETWORK_DIASPORA => (-5),
140         NETWORK_MAIL     => (-6),
141         NETWORK_MAIL2    => (-7),
142         NETWORK_FACEBOOK => (-8),
143         NETWORK_LINKEDIN => (-9),
144         NETWORK_XMPP     => (-10),
145         NETWORK_MYSPACE  => (-11),
146         NETWORK_GPLUS    => (-12),
147
148         NETWORK_PHANTOM  => (-127),
149 );
150
151
152 /**
153  * Maximum number of "people who like (or don't like) this"  that we will list by name
154  */
155
156 define ( 'MAX_LIKERS',    75);
157
158 /**
159  * Communication timeout
160  */
161
162 define ( 'ZCURL_TIMEOUT' , (-1));
163
164
165 /**
166  * email notification options
167  */
168
169 define ( 'NOTIFY_INTRO',    0x0001 );
170 define ( 'NOTIFY_CONFIRM',  0x0002 );
171 define ( 'NOTIFY_WALL',     0x0004 );
172 define ( 'NOTIFY_COMMENT',  0x0008 );
173 define ( 'NOTIFY_MAIL',     0x0010 );
174 define ( 'NOTIFY_SUGGEST',  0x0020 );
175 define ( 'NOTIFY_PROFILE',  0x0040 );
176 define ( 'NOTIFY_TAGSELF',  0x0080 );
177 define ( 'NOTIFY_TAGSHARE', 0x0100 );
178
179 define ( 'NOTIFY_SYSTEM',   0x8000 );
180
181
182 /**
183  * various namespaces we may need to parse
184  */
185
186 define ( 'NAMESPACE_ZOT',             'http://purl.org/macgirvin/zot' );
187 define ( 'NAMESPACE_DFRN' ,           'http://purl.org/macgirvin/dfrn/1.0' );
188 define ( 'NAMESPACE_THREAD' ,         'http://purl.org/syndication/thread/1.0' );
189 define ( 'NAMESPACE_TOMB' ,           'http://purl.org/atompub/tombstones/1.0' );
190 define ( 'NAMESPACE_ACTIVITY',        'http://activitystrea.ms/spec/1.0/' );
191 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
192 define ( 'NAMESPACE_MEDIA',           'http://purl.org/syndication/atommedia' );
193 define ( 'NAMESPACE_SALMON_ME',       'http://salmon-protocol.org/ns/magic-env' );
194 define ( 'NAMESPACE_OSTATUSSUB',      'http://ostatus.org/schema/1.0/subscribe' );
195 define ( 'NAMESPACE_GEORSS',          'http://www.georss.org/georss' );
196 define ( 'NAMESPACE_POCO',            'http://portablecontacts.net/spec/1.0' );
197 define ( 'NAMESPACE_FEED',            'http://schemas.google.com/g/2010#updates-from' );
198 define ( 'NAMESPACE_OSTATUS',         'http://ostatus.org/schema/1.0' );
199 define ( 'NAMESPACE_STATUSNET',       'http://status.net/schema/api/1/' );
200 define ( 'NAMESPACE_ATOM1',           'http://www.w3.org/2005/Atom' );
201 /**
202  * activity stream defines
203  */
204
205 define ( 'ACTIVITY_LIKE',        NAMESPACE_ACTIVITY_SCHEMA . 'like' );
206 define ( 'ACTIVITY_DISLIKE',     NAMESPACE_DFRN            . '/dislike' );
207 define ( 'ACTIVITY_OBJ_HEART',   NAMESPACE_DFRN            . '/heart' );
208
209 define ( 'ACTIVITY_FRIEND',      NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
210 define ( 'ACTIVITY_REQ_FRIEND',  NAMESPACE_ACTIVITY_SCHEMA . 'request-friend' );
211 define ( 'ACTIVITY_UNFRIEND',    NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend' );
212 define ( 'ACTIVITY_FOLLOW',      NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
213 define ( 'ACTIVITY_UNFOLLOW',    NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
214 define ( 'ACTIVITY_JOIN',        NAMESPACE_ACTIVITY_SCHEMA . 'join' );
215
216 define ( 'ACTIVITY_POST',        NAMESPACE_ACTIVITY_SCHEMA . 'post' );
217 define ( 'ACTIVITY_UPDATE',      NAMESPACE_ACTIVITY_SCHEMA . 'update' );
218 define ( 'ACTIVITY_TAG',         NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
219 define ( 'ACTIVITY_FAVORITE',    NAMESPACE_ACTIVITY_SCHEMA . 'favorite' );
220
221 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
222 define ( 'ACTIVITY_OBJ_NOTE',    NAMESPACE_ACTIVITY_SCHEMA . 'note' );
223 define ( 'ACTIVITY_OBJ_PERSON',  NAMESPACE_ACTIVITY_SCHEMA . 'person' );
224 define ( 'ACTIVITY_OBJ_PHOTO',   NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
225 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
226 define ( 'ACTIVITY_OBJ_ALBUM',   NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
227 define ( 'ACTIVITY_OBJ_EVENT',   NAMESPACE_ACTIVITY_SCHEMA . 'event' );
228 define ( 'ACTIVITY_OBJ_GROUP',   NAMESPACE_ACTIVITY_SCHEMA . 'group' );
229 define ( 'ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN            . '/tagterm' );
230 define ( 'ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN            . '/profile' );
231
232 /**
233  * item weight for query ordering
234  */
235
236 define ( 'GRAVITY_PARENT',       0);
237 define ( 'GRAVITY_LIKE',         3);
238 define ( 'GRAVITY_COMMENT',      6);
239
240 /**
241  *
242  * Reverse the effect of magic_quotes_gpc if it is enabled.
243  * Please disable magic_quotes_gpc so we don't have to do this.
244  * See http://php.net/manual/en/security.magicquotes.disabling.php
245  *
246  */
247
248 function startup() {
249         error_reporting(E_ERROR | E_WARNING | E_PARSE);
250         set_time_limit(0);
251
252         // This has to be quite large to deal with embedded private photos
253         ini_set('pcre.backtrack_limit', 500000);
254
255
256         if (get_magic_quotes_gpc()) {
257                 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
258                 while (list($key, $val) = each($process)) {
259                         foreach ($val as $k => $v) {
260                                 unset($process[$key][$k]);
261                                 if (is_array($v)) {
262                                         $process[$key][stripslashes($k)] = $v;
263                                         $process[] = &$process[$key][stripslashes($k)];
264                                 } else {
265                                         $process[$key][stripslashes($k)] = stripslashes($v);
266                                 }
267                         }
268                 }
269                 unset($process);
270         }
271
272 }
273
274 /**
275  *
276  * class: App
277  *
278  * Our main application structure for the life of this page
279  * Primarily deals with the URL that got us here
280  * and tries to make some sense of it, and
281  * stores our page contents and config storage
282  * and anything else that might need to be passed around
283  * before we spit the page out.
284  *
285  */
286
287 if(! class_exists('App')) {
288         class App {
289
290                 public  $module_loaded = false;
291                 public  $query_string;
292                 public  $config;
293                 public  $page;
294                 public  $profile;
295                 public  $user;
296                 public  $cid;
297                 public  $contact;
298                 public  $contacts;
299                 public  $page_contact;
300                 public  $content;
301                 public  $data = array();
302                 public  $error = false;
303                 public  $cmd;
304                 public  $argv;
305                 public  $argc;
306                 public  $module;
307                 public  $pager;
308                 public  $strings;
309                 public  $path;
310                 public  $hooks;
311                 public  $timezone;
312                 public  $interactive = true;
313                 public  $plugins;
314                 public  $apps = array();
315                 public  $identities;
316         
317                 public $nav_sel;
318
319                 public $category;
320
321                 private $scheme;
322                 private $hostname;
323                 private $baseurl;
324                 private $db;
325
326                 private $curl_code;
327                 private $curl_headers;
328
329                 function __construct() {
330
331                         $this->config = array();
332                         $this->page = array();
333                         $this->pager= array();
334
335                         $this->query_string = '';
336
337                         startup();
338
339                         $this->scheme = 'http';
340                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
341                                 $this->scheme = 'https';
342                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
343                         $this->scheme = 'https';
344
345
346                         if(x($_SERVER,'SERVER_NAME')) {
347                                 $this->hostname = $_SERVER['SERVER_NAME'];
348                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
349                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
350                                 /**
351                                  * Figure out if we are running at the top of a domain
352                                  * or in a sub-directory and adjust accordingly
353                                  */
354
355                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
356                                 if(isset($path) && strlen($path) && ($path != $this->path))
357                                         $this->path = $path;
358                         }
359
360                         set_include_path(
361                                         "include/$this->hostname" . PATH_SEPARATOR
362                                         . 'include' . PATH_SEPARATOR
363                                         . 'library' . PATH_SEPARATOR
364                                         . 'library/phpsec' . PATH_SEPARATOR
365                                         . '.' );
366
367                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
368                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
369                                 // removing trailing / - maybe a nginx problem
370                                 if (substr($this->query_string, 0, 1) == "/")
371                                         $this->query_string = substr($this->query_string, 1);
372                         }
373                         if(x($_GET,'q'))
374                                 $this->cmd = trim($_GET['q'],'/\\');
375
376                         // unix style "homedir"
377
378                         if(substr($this->cmd,0,1) === '~')
379                                 $this->cmd = 'profile/' . substr($this->cmd,1);
380
381                         // Diaspora style profile url
382
383                         if(substr($this->cmd,0,2) === 'u/')
384                                 $this->cmd = 'profile/' . substr($this->cmd,2);
385
386                         /**
387                          *
388                          * Break the URL path into C style argc/argv style arguments for our
389                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
390                          * will be 3 (integer) and $this->argv will contain:
391                          *   [0] => 'module'
392                          *   [1] => 'arg1'
393                          *   [2] => 'arg2'
394                          *
395                          *
396                          * There will always be one argument. If provided a naked domain
397                          * URL, $this->argv[0] is set to "home".
398                          *
399                          */
400
401                         $this->argv = explode('/',$this->cmd);
402                         $this->argc = count($this->argv);
403                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
404                                 $this->module = str_replace(".", "_", $this->argv[0]);
405                                 if(array_key_exists('2',$this->argv)) {
406                                         $this->category = $this->argv[2];
407                                 }
408                         }
409                         else {
410                                 $this->argc = 1;
411                                 $this->argv = array('home');
412                                 $this->module = 'home';
413                         }
414
415                         /**
416                          * Special handling for the webfinger/lrdd host XRD file
417                          */
418
419                         if($this->cmd === '.well-known/host-meta') {
420                                 $this->argc = 1;
421                                 $this->argv = array('hostxrd');
422                                 $this->module = 'hostxrd';
423                         }
424
425                         /**
426                          * See if there is any page number information, and initialise
427                          * pagination
428                          */
429
430                         $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
431                         $this->pager['itemspage'] = 50;
432                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
433                         $this->pager['total'] = 0;
434                 }
435
436                 function get_baseurl($ssl = false) {
437
438                         $scheme = $this->scheme;
439
440                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
441                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
442                                         $scheme = 'https';
443
444                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
445                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
446
447                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
448                                         if($ssl)
449                                                 $scheme = 'https';
450                                         else
451                                                 $scheme = 'http';
452                                 }
453                         }
454
455                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
456                         return $this->baseurl;
457                 }
458
459                 function set_baseurl($url) {
460                         $parsed = @parse_url($url);
461
462                         $this->baseurl = $url;
463
464                         if($parsed) {
465                                 $this->scheme = $parsed['scheme'];
466
467                                 $this->hostname = $parsed['host'];
468                                 if(x($parsed,'port'))
469                                         $this->hostname .= ':' . $parsed['port'];
470                                 if(x($parsed,'path'))
471                                         $this->path = trim($parsed['path'],'\\/');
472                         }
473
474                 }
475
476                 function get_hostname() {
477                         return $this->hostname;
478                 }
479
480                 function set_hostname($h) {
481                         $this->hostname = $h;
482                 }
483
484                 function set_path($p) {
485                         $this->path = trim(trim($p),'/');
486                 }
487
488                 function get_path() {
489                         return $this->path;
490                 }
491
492                 function set_pager_total($n) {
493                         $this->pager['total'] = intval($n);
494                 }
495
496                 function set_pager_itemspage($n) {
497                         $this->pager['itemspage'] = intval($n);
498                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
499
500                 }
501
502                 function init_pagehead() {
503                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
504                         if($interval < 10000)
505                                 $interval = 40000;
506
507                         $this->page['title'] = $this->config['sitename'];
508                         $tpl = file_get_contents('view/head.tpl');
509                         $this->page['htmlhead'] = replace_macros($tpl,array(
510                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
511                                 '$local_user' => local_user(),
512                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
513                                 '$delitem' => t('Delete this item?'),
514                                 '$comment' => t('Comment'),
515                                 '$showmore' => t('show more'),
516                                 '$showfewer' => t('show fewer'),
517                                 '$update_interval' => $interval
518                         ));
519                 }
520
521                 function set_curl_code($code) {
522                         $this->curl_code = $code;
523                 }
524
525                 function get_curl_code() {
526                         return $this->curl_code;
527                 }
528
529                 function set_curl_headers($headers) {
530                         $this->curl_headers = $headers;
531                 }
532
533                 function get_curl_headers() {
534                         return $this->curl_headers;
535                 }
536
537
538         }
539 }
540
541 // retrieve the App structure
542 // useful in functions which require it but don't get it passed to them
543
544 if(! function_exists('get_app')) {
545         function get_app() {
546                 global $a;
547                 return $a;
548         }
549 };
550
551
552 // Multi-purpose function to check variable state.
553 // Usage: x($var) or $x($array,'key')
554 // returns false if variable/key is not set
555 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
556 // e.g. x('') or x(0) returns 0;
557
558 if(! function_exists('x')) {
559         function x($s,$k = NULL) {
560                 if($k != NULL) {
561                         if((is_array($s)) && (array_key_exists($k,$s))) {
562                                 if($s[$k])
563                                         return (int) 1;
564                                 return (int) 0;
565                 }
566                         return false;
567                 }
568                 else {
569                         if(isset($s)) {
570                                 if($s) {
571                                         return (int) 1;
572                                 }
573                                 return (int) 0;
574                         }
575                         return false;
576                 }
577         }
578 }
579
580 // called from db initialisation if db is dead.
581
582 if(! function_exists('system_unavailable')) {
583         function system_unavailable() {
584                 include('system_unavailable.php');
585                 system_down();
586                 killme();
587         }
588 }
589
590
591
592 function clean_urls() {
593         global $a;
594         //      if($a->config['system']['clean_urls'])
595         return true;
596         //      return false;
597 }
598
599 function z_path() {
600         global $a;
601         $base = $a->get_baseurl();
602         if(! clean_urls())
603                 $base .= '/?q=';
604         return $base;
605 }
606
607 function z_root() {
608         global $a;
609         return $a->get_baseurl();
610 }
611
612 function absurl($path) {
613         if(strpos($path,'/') === 0)
614                 return z_path() . $path;
615         return $path;
616 }
617
618 function is_ajax() {
619         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
620 }
621
622
623 // Primarily involved with database upgrade, but also sets the
624 // base url for use in cmdline programs which don't have
625 // $_SERVER variables, and synchronising the state of installed plugins.
626
627
628 if(! function_exists('check_config')) {
629         function check_config(&$a) {
630
631                 $build = get_config('system','build');
632                 if(! x($build))
633                         $build = set_config('system','build',DB_UPDATE_VERSION);
634
635                 $url = get_config('system','url');
636
637                 // if the url isn't set or the stored url is radically different
638                 // than the currently visited url, store the current value accordingly.
639                 // "Radically different" ignores common variations such as http vs https
640                 // and www.example.com vs example.com.
641
642                 if((! x($url)) || (! link_compare($url,$a->get_baseurl())))
643                         $url = set_config('system','url',$a->get_baseurl());
644
645                 if($build != DB_UPDATE_VERSION) {
646                         $stored = intval($build);
647                         $current = intval(DB_UPDATE_VERSION);
648                         if(($stored < $current) && file_exists('update.php')) {
649
650                                 load_config('database');
651
652                                 // We're reporting a different version than what is currently installed.
653                                 // Run any existing update scripts to bring the database up to current.
654
655                                 require_once('update.php');
656
657                                 // make sure that boot.php and update.php are the same release, we might be
658                                 // updating right this very second and the correct version of the update.php
659                                 // file may not be here yet. This can happen on a very busy site.
660
661                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
662
663                                         for($x = $stored; $x < $current; $x ++) {
664                                                 if(function_exists('update_' . $x)) {
665
666                                                         // There could be a lot of processes running or about to run.
667                                                         // We want exactly one process to run the update command.
668                                                         // So store the fact that we're taking responsibility
669                                                         // after first checking to see if somebody else already has.
670
671                                                         // If the update fails or times-out completely you may need to
672                                                         // delete the config entry to try again.
673
674                                                         if(get_config('database','update_' . $x))
675                                                                 break;
676                                                         set_config('database','update_' . $x, '1');
677
678                                                         // call the specific update
679
680                                                         $func = 'update_' . $x;
681                                                         $retval = $func();
682                                                         if($retval) {
683                                                                 //send the administrator an e-mail
684                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
685                                                                 $email_msg = replace_macros($email_tpl, array(
686                                                                         '$sitename' => $a->config['sitename'],
687                                                                         '$siteurl' =>  $a->get_baseurl(),
688                                                                         '$update' => $x,
689                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
690                                                                 ));
691                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
692                                                                         
693                                                                 mail($a->config['admin_email'], $subject, $email_msg,
694                                                                         'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
695                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
696                                                                         . 'Content-transfer-encoding: 8bit' );
697                                                                 //try the logger
698                                                                 logger('CRITICAL: Update Failed: '. $x);
699                                                         }
700                                                         else
701                                                                 set_config('database','update_' . $x, 'success');
702                                                                 
703                                                 }
704                                         }
705                                         set_config('system','build', DB_UPDATE_VERSION);
706                                 }
707                         }
708                 }
709
710                 /**
711                  *
712                  * Synchronise plugins:
713                  *
714                  * $a->config['system']['addon'] contains a comma-separated list of names
715                  * of plugins/addons which are used on this system.
716                  * Go through the database list of already installed addons, and if we have
717                  * an entry, but it isn't in the config list, call the uninstall procedure
718                  * and mark it uninstalled in the database (for now we'll remove it).
719                  * Then go through the config list and if we have a plugin that isn't installed,
720                  * call the install procedure and add it to the database.
721                  *
722                  */
723
724                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
725                 if(count($r))
726                         $installed = $r;
727                 else
728                         $installed = array();
729
730                 $plugins = get_config('system','addon');
731                 $plugins_arr = array();
732
733                 if($plugins)
734                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
735
736                 $a->plugins = $plugins_arr;
737
738                 $installed_arr = array();
739
740                 if(count($installed)) {
741                         foreach($installed as $i) {
742                                 if(! in_array($i['name'],$plugins_arr)) {
743                                         uninstall_plugin($i['name']);
744                                 }
745                                 else {
746                                         $installed_arr[] = $i['name'];
747                                 }
748                         }
749                 }
750
751                 if(count($plugins_arr)) {
752                         foreach($plugins_arr as $p) {
753                                 if(! in_array($p,$installed_arr)) {
754                                         install_plugin($p);
755                                 }
756                         }
757                 }
758
759
760                 load_hooks();
761
762                 return;
763         }
764 }
765
766
767 function get_guid($size=16) {
768         $exists = true; // assume by default that we don't have a unique guid
769         do {
770                 $s = random_string($size);
771                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
772                 if(! count($r))
773                         $exists = false;
774         } while($exists);
775         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
776         return $s;
777 }
778
779
780 // wrapper for adding a login box. If $register == true provide a registration
781 // link. This will most always depend on the value of $a->config['register_policy'].
782 // returns the complete html for inserting into the page
783
784 if(! function_exists('login')) {
785         function login($register = false, $hiddens=false) {
786                 $a = get_app();
787                 $o = "";
788                 $reg = false;
789                 if ($register) {
790                         $reg = array(
791                                 'title' => t('Create a New Account'),
792                                 'desc' => t('Register')
793                         );
794                 }
795
796                 $noid = get_config('system','no_openid');
797         
798                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
799
800                 if(local_user()) {
801                         $tpl = get_markup_template("logout.tpl");
802                 }
803                 else {
804                         $tpl = get_markup_template("login.tpl");
805                         $_SESSION['return_url'] = $a->query_string;
806                 }
807
808
809                 $o .= replace_macros($tpl,array(
810
811                         '$dest_url'     => $dest_url,
812                         '$logout'       => t('Logout'),
813                         '$login'        => t('Login'),
814         
815                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
816                         '$lpassword'    => array('password', t('Password: '), '', ''),
817         
818                         '$openid'               => !$noid,
819                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
820         
821                         '$hiddens'      => $hiddens,
822         
823                         '$register'     => $reg,
824         
825                         '$lostpass'     => t('Forgot your password?'),
826                         '$lostlink'     => t('Password Reset'),
827                 ));
828
829                 call_hooks('login_hook',$o);
830
831                 return $o;
832         }
833 }
834
835 // Used to end the current process, after saving session state.
836
837 if(! function_exists('killme')) {
838         function killme() {
839                 session_write_close();
840                 exit;
841         }
842 }
843
844 // redirect to another URL and terminate this process.
845
846 if(! function_exists('goaway')) {
847         function goaway($s) {
848                 header("Location: $s");
849                 killme();
850         }
851 }
852
853
854 // Returns the uid of locally logged in user or false.
855
856 if(! function_exists('local_user')) {
857         function local_user() {
858                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
859                         return intval($_SESSION['uid']);
860                 return false;
861         }
862 }
863
864 // Returns contact id of authenticated site visitor or false
865
866 if(! function_exists('remote_user')) {
867         function remote_user() {
868                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
869                         return intval($_SESSION['visitor_id']);
870                 return false;
871         }
872 }
873
874 // contents of $s are displayed prominently on the page the next time
875 // a page is loaded. Usually used for errors or alerts.
876
877 if(! function_exists('notice')) {
878         function notice($s) {
879                 $a = get_app();
880                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
881                 if($a->interactive)
882                         $_SESSION['sysmsg'][] = $s;
883         }
884 }
885 if(! function_exists('info')) {
886         function info($s) {
887                 $a = get_app();
888                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
889                 if($a->interactive)
890                         $_SESSION['sysmsg_info'][] = $s;
891         }
892 }
893
894
895 // wrapper around config to limit the text length of an incoming message
896
897 if(! function_exists('get_max_import_size')) {
898         function get_max_import_size() {
899                 global $a;
900                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
901         }
902 }
903
904
905
906 /**
907  *
908  * Function : profile_load
909  * @parameter App    $a
910  * @parameter string $nickname
911  * @parameter int    $profile
912  *
913  * Summary: Loads a profile into the page sidebar.
914  * The function requires a writeable copy of the main App structure, and the nickname
915  * of a registered local account.
916  *
917  * If the viewer is an authenticated remote viewer, the profile displayed is the
918  * one that has been configured for his/her viewing in the Contact manager.
919  * Passing a non-zero profile ID can also allow a preview of a selected profile
920  * by the owner.
921  *
922  * Profile information is placed in the App structure for later retrieval.
923  * Honours the owner's chosen theme for display.
924  *
925  */
926
927 if(! function_exists('profile_load')) {
928         function profile_load(&$a, $nickname, $profile = 0) {
929                 if(remote_user()) {
930                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
931                                         intval($_SESSION['visitor_id']));
932                         if(count($r))
933                                 $profile = $r[0]['profile-id'];
934                 }
935
936                 $r = null;
937                           
938                 if($profile) {
939                         $profile_int = intval($profile);
940                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
941                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
942                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
943                                         dbesc($nickname),
944                                         intval($profile_int)
945                         );
946                 }
947                 if((! $r) && (!  count($r))) {
948                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
949                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
950                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
951                                         dbesc($nickname)
952                         );
953                 }
954
955                 if(($r === false) || (! count($r))) {
956                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
957                         notice( t('Requested profile is not available.') . EOL );
958                         $a->error = 404;
959                         return;
960                 }
961         
962                 // fetch user tags if this isn't the default profile
963
964                 if(! $r[0]['is-default']) {
965                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
966                                         intval($profile_uid)
967                         );
968                         if($x && count($x))
969                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
970                 }
971
972                 $a->profile = $r[0];
973
974
975                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
976                 $_SESSION['theme'] = $a->profile['theme'];
977
978                 /**
979                  * load/reload current theme info
980                  */
981
982                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
983                 if (file_exists($theme_info_file)){
984                         require_once($theme_info_file);
985                 }
986
987                 if(! (x($a->page,'aside')))
988                         $a->page['aside'] = '';
989
990                 if(local_user() && local_user() == $a->profile['uid']) {
991                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
992                                 '$editprofile' => t('Edit profile'),
993                                 '$profid' => $a->profile['id']
994                         ));
995                 }
996
997                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
998
999                 $a->page['aside'] .= profile_sidebar($a->profile, $block);
1000
1001                 /*if(! $block)
1002                  $a->page['aside'] .= contact_block();*/
1003
1004                 return;
1005         }
1006 }
1007
1008
1009 /**
1010  *
1011  * Function: profile_sidebar
1012  *
1013  * Formats a profile for display in the sidebar.
1014  * It is very difficult to templatise the HTML completely
1015  * because of all the conditional logic.
1016  *
1017  * @parameter: array $profile
1018  *
1019  * Returns HTML string stuitable for sidebar inclusion
1020  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1021  *
1022  */
1023
1024
1025 if(! function_exists('profile_sidebar')) {
1026         function profile_sidebar($profile, $block = 0) {
1027
1028                 $a = get_app();
1029
1030                 $o = '';
1031                 $location = false;
1032                 $address = false;
1033                 $pdesc = true;
1034
1035                 if((! is_array($profile)) && (! count($profile)))
1036                         return $o;
1037
1038                 $profile['picdate'] = urlencode($profile['picdate']);
1039
1040                 call_hooks('profile_sidebar_enter', $profile);
1041
1042         
1043                 // don't show connect link to yourself
1044                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1045
1046                 // don't show connect link to authenticated visitors either
1047
1048                 if((remote_user()) && ($_SESSION['visitor_visiting'] == $profile['uid']))
1049                         $connect = False;
1050
1051                 if(get_my_url() && $profile['unkmail'])
1052                         $wallmessage = t('Message');
1053                 else
1054                         $wallmessage = false;
1055
1056
1057
1058                 // show edit profile to yourself
1059                 if ($profile['uid'] == local_user()) {
1060                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1061                 
1062                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1063                                         local_user());
1064                 
1065                         $profile['menu'] = array(
1066                                 'chg_photo' => t('Change profile photo'),
1067                                 'cr_new' => t('Create New Profile'),
1068                                 'entries' => array(),
1069                         );
1070
1071                         if(count($r)) {
1072
1073                                 foreach($r as $rr) {
1074                                         $profile['menu']['entries'][] = array(
1075                                                 'photo' => $rr['thumb'],
1076                                                 'id' => $rr['id'],
1077                                                 'alt' => t('Profile Image'),
1078                                                 'profile_name' => $rr['profile-name'],
1079                                                 'isdefault' => $rr['is-default'],
1080                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1081                                                 'edit_visibility' => t('Edit visibility'),
1082
1083                                         );
1084                                 }
1085
1086
1087                         }
1088
1089
1090                 }
1091
1092
1093
1094         
1095                 if((x($profile,'address') == 1)
1096                                 || (x($profile,'locality') == 1)
1097                                 || (x($profile,'region') == 1)
1098                                 || (x($profile,'postal-code') == 1)
1099                                 || (x($profile,'country-name') == 1))
1100                         $location = t('Location:');
1101
1102                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1103
1104
1105                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1106
1107                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1108
1109                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1110                         $location = $pdesc = $gender = $marital = $homepage = False;
1111                 }
1112
1113                 $firstname = ((strpos($profile['name'],' '))
1114                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1115                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1116
1117                 $diaspora = array(
1118                         'podloc' => $a->get_baseurl(),
1119                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1120                         'nickname' => $profile['nickname'],
1121                         'fullname' => $profile['name'],
1122                         'firstname' => $firstname,
1123                         'lastname' => $lastname,
1124                         'photo300' => $a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg',
1125                         'photo100' => $a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg',
1126                         'photo50' => $a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg',
1127                 );
1128
1129                 if (!$block){
1130                         $contact_block = contact_block();
1131                 }
1132
1133
1134                 $tpl = get_markup_template('profile_vcard.tpl');
1135
1136                 $o .= replace_macros($tpl, array(
1137                         '$profile' => $profile,
1138                         '$connect'  => $connect,
1139                         '$wallmessage' => $wallmessage,
1140                         '$location' => template_escape($location),
1141                         '$gender'   => $gender,
1142                         '$pdesc'        => $pdesc,
1143                         '$marital'  => $marital,
1144                         '$homepage' => $homepage,
1145                         '$diaspora' => $diaspora,
1146                         '$contact_block' => $contact_block,
1147                 ));
1148
1149
1150                 $arr = array('profile' => &$profile, 'entry' => &$o);
1151
1152                 call_hooks('profile_sidebar', $arr);
1153
1154                 return $o;
1155         }
1156 }
1157
1158
1159 if(! function_exists('get_birthdays')) {
1160         function get_birthdays() {
1161
1162                 $a = get_app();
1163                 $o = '';
1164
1165                 if(! local_user())
1166                         return $o;
1167
1168                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1169                 $bd_short = t('F d');
1170
1171                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1172                                 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
1173                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1174                                 ORDER BY `start` ASC ",
1175                                 intval(local_user()),
1176                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1177                                 dbesc(datetime_convert('UTC','UTC','now'))
1178                 );
1179
1180                 if($r && count($r)) {
1181                         $total = 0;
1182                         $now = strtotime('now');
1183                         $cids = array();
1184
1185                         $istoday = false;
1186                         foreach($r as $rr) {
1187                                 if(strlen($rr['name']))
1188                                         $total ++;
1189                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1190                                         $istoday = true;
1191                         }
1192                         $classtoday = $istoday ? ' birthday-today ' : '';
1193                         if($total) {
1194                                 foreach($r as &$rr) {
1195                                         if(! strlen($rr['name']))
1196                                                 continue;
1197
1198                                         // avoid duplicates
1199
1200                                         if(in_array($rr['cid'],$cids))
1201                                                 continue;
1202                                         $cids[] = $rr['cid'];
1203
1204                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1205                                         $sparkle = '';
1206                                         $url = $rr['url'];
1207                                         if($rr['network'] === NETWORK_DFRN) {
1208                                                 $sparkle = " sparkle";
1209                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1210                                         }
1211         
1212                                         $rr['link'] = $url;
1213                                         $rr['title'] = $rr['name'];
1214                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1215                                         $rr['startime'] = Null;
1216                                         $rr['today'] = $today;
1217         
1218                                 }
1219                         }
1220                 }
1221                 $tpl = get_markup_template("birthdays_reminder.tpl");
1222                 return replace_macros($tpl, array(
1223                         '$baseurl' => $a->get_baseurl(),
1224                         '$classtoday' => $classtoday,
1225                         '$count' => $total,
1226                         '$event_reminders' => t('Birthday Reminders'),
1227                         '$event_title' => t('Birthdays this week:'),
1228                         '$events' => $r,
1229                 ));
1230         }
1231 }
1232
1233
1234 if(! function_exists('get_events')) {
1235         function get_events() {
1236
1237                 require_once('include/bbcode.php');
1238
1239                 $a = get_app();
1240
1241                 if(! local_user())
1242                         return $o;
1243
1244                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1245                 $bd_short = t('F d');
1246
1247                 $r = q("SELECT `event`.* FROM `event`
1248                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1249                                 ORDER BY `start` ASC ",
1250                                 intval(local_user()),
1251                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1252                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1253                 );
1254
1255                 if($r && count($r)) {
1256                         $now = strtotime('now');
1257                         $istoday = false;
1258                         foreach($r as $rr) {
1259                                 if(strlen($rr['name']))
1260                                         $total ++;
1261
1262                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1263                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1264                                         $istoday = true;
1265                         }
1266                         $classtoday = (($istoday) ? 'event-today' : '');
1267
1268
1269                         foreach($r as &$rr) {
1270                                 if($rr['adjust'])
1271                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1272                                 else
1273                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1274                                 $md .= "/#link-".$rr['id'];
1275
1276                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1277                                 if(! $title)
1278                                         $title = t('[No description]');
1279
1280                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1281                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1282                                 
1283                                 $rr['link'] = $md;
1284                                 $rr['title'] = $title;
1285                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1286                                 $rr['startime'] = $strt;
1287                                 $rr['today'] = $today;
1288                         }
1289                 }
1290
1291                 $tpl = get_markup_template("events_reminder.tpl");
1292                 return replace_macros($tpl, array(
1293                         '$baseurl' => $a->get_baseurl(),
1294                         '$classtoday' => $classtoday,
1295                         '$count' => count($r),
1296                         '$event_reminders' => t('Event Reminders'),
1297                         '$event_title' => t('Events this week:'),
1298                         '$events' => $r,
1299                 ));
1300         }
1301 }
1302
1303
1304 /**
1305  *
1306  * Wrap calls to proc_close(proc_open()) and call hook
1307  * so plugins can take part in process :)
1308  *
1309  * args:
1310  * $cmd program to run
1311  *  next args are passed as $cmd command line
1312  *
1313  * e.g.: proc_run("ls","-la","/tmp");
1314  *
1315  * $cmd and string args are surrounded with ""
1316  */
1317
1318 if(! function_exists('proc_run')) {
1319         function proc_run($cmd){
1320
1321                 $a = get_app();
1322
1323                 $args = func_get_args();
1324
1325                 $newargs = array();
1326                 if(! count($args))
1327                         return;
1328
1329                 // expand any arrays
1330
1331                 foreach($args as $arg) {
1332                         if(is_array($arg)) {
1333                                 foreach($arg as $n) {
1334                                         $newargs[] = $n;
1335                                 }
1336                         }
1337                         else
1338                                 $newargs[] = $arg;
1339                 }
1340
1341                 $args = $newargs;
1342                 
1343                 $arr = array('args' => $args, 'run_cmd' => true);
1344
1345                 call_hooks("proc_run", $arr);
1346                 if(! $arr['run_cmd'])
1347                         return;
1348
1349                 if(count($args) && $args[0] === 'php')
1350                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1351                 foreach ($args as $arg){
1352                         $arg = escapeshellarg($arg);
1353                 }
1354                 $cmdline = implode($args," ");
1355                 proc_close(proc_open($cmdline." &",array(),$foo));
1356         }
1357 }
1358
1359 if(! function_exists('current_theme')) {
1360         function current_theme(){
1361                 $app_base_themes = array('duepuntozero', 'loozah');
1362         
1363                 $a = get_app();
1364         
1365                 $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1366                 $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1367         
1368                 if($theme_name &&
1369                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1370                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1371                         return($theme_name);
1372         
1373                 foreach($app_base_themes as $t) {
1374                         if(file_exists('view/theme/' . $t . '/style.css')||
1375                                         file_exists('view/theme/' . $t . '/style.php'))
1376                                 return($t);
1377                 }
1378         
1379                 $fallback = glob('view/theme/*/style.[css|php]');
1380                 if(count($fallback))
1381                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1382         
1383         }
1384 }
1385
1386 /*
1387  * Return full URL to theme which is currently in effect.
1388 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1389 */
1390 if(! function_exists('current_theme_url')) {
1391         function current_theme_url() {
1392                 global $a;
1393                 $t = current_theme();
1394                 if (file_exists('view/theme/' . $t . '/style.php'))
1395                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1396                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1397         }
1398 }
1399
1400 if(! function_exists('feed_birthday')) {
1401         function feed_birthday($uid,$tz) {
1402
1403                 /**
1404                  *
1405                  * Determine the next birthday, but only if the birthday is published
1406                  * in the default profile. We _could_ also look for a private profile that the
1407                  * recipient can see, but somebody could get mad at us if they start getting
1408                  * public birthday greetings when they haven't made this info public.
1409                  *
1410                  * Assuming we are able to publish this info, we are then going to convert
1411                  * the start time from the owner's timezone to UTC.
1412                  *
1413                  * This will potentially solve the problem found with some social networks
1414                  * where birthdays are converted to the viewer's timezone and salutations from
1415                  * elsewhere in the world show up on the wrong day. We will convert it to the
1416                  * viewer's timezone also, but first we are going to convert it from the birthday
1417                  * person's timezone to GMT - so the viewer may find the birthday starting at
1418                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1419                  *
1420                  */
1421
1422         
1423                 $birthday = '';
1424
1425                 if(! strlen($tz))
1426                         $tz = 'UTC';
1427
1428                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1429                                 intval($uid)
1430                 );
1431
1432                 if($p && count($p)) {
1433                         $tmp_dob = substr($p[0]['dob'],5);
1434                         if(intval($tmp_dob)) {
1435                                 $y = datetime_convert($tz,$tz,'now','Y');
1436                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1437                                 $t_dob = strtotime($bd);
1438                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1439                                 if($t_dob < $now)
1440                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1441                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
1442                         }
1443                 }
1444
1445                 return $birthday;
1446         }
1447 }
1448
1449 if(! function_exists('is_site_admin')) {
1450         function is_site_admin() {
1451                 $a = get_app();
1452                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1453                         return true;
1454                 return false;
1455         }
1456 }
1457
1458
1459 if(! function_exists('load_contact_links')) {
1460         function load_contact_links($uid) {
1461
1462                 $a = get_app();
1463
1464                 $ret = array();
1465
1466                 if(! $uid || x($a->contacts,'empty'))
1467                         return;
1468
1469                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
1470                                 intval($uid)
1471                 );
1472                 if(count($r)) {
1473                         foreach($r as $rr){
1474                                 $url = normalise_link($rr['url']);
1475                                 $ret[$url] = $rr;
1476                         }
1477                 }
1478                 else
1479                         $ret['empty'] = true;
1480                 $a->contacts = $ret;
1481                 return;
1482         }
1483 }
1484
1485 if(! function_exists('profile_tabs')){
1486         function profile_tabs($a, $is_owner=False, $nickname=Null){
1487                 //echo "<pre>"; var_dump($a->user); killme();
1488         
1489                 if (is_null($nickname))
1490                         $nickname  = $a->user['nickname'];
1491                 
1492                 if(x($_GET,'tab'))
1493                         $tab = notags(trim($_GET['tab']));
1494         
1495                 $url = $a->get_baseurl() . '/profile/' . $nickname;
1496
1497                 $tabs = array(
1498                         array(
1499                                 'label'=>t('Status'),
1500                                 'url' => $url,
1501                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
1502                                 'title' => t('Status Messages and Posts'),
1503                         ),
1504                         array(
1505                                 'label' => t('Profile'),
1506                                 'url'   => $url.'/?tab=profile',
1507                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
1508                                 'title' => t('Profile Details'),
1509                         ),
1510                         array(
1511                                 'label' => t('Photos'),
1512                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
1513                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
1514                                 'title' => t('Photo Albums'),
1515                         ),
1516                 );
1517         
1518                 if ($is_owner){
1519                         $tabs[] = array(
1520                                 'label' => t('Events'),
1521                                 'url'   => $a->get_baseurl() . '/events',
1522                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
1523                                 'title' => t('Events and Calendar'),
1524                         );
1525                         $tabs[] = array(
1526                                 'label' => t('Personal Notes'),
1527                                 'url'   => $a->get_baseurl() . '/notes',
1528                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
1529                                 'title' => t('Only You Can See This'),
1530                         );
1531                 }
1532
1533
1534                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
1535                 call_hooks('profile_tabs', $arr);
1536         
1537                 $tpl = get_markup_template('common_tabs.tpl');
1538
1539                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
1540         }
1541 }
1542
1543 function get_my_url() {
1544         if(x($_SESSION,'my_url'))
1545                 return $_SESSION['my_url'];
1546         return false;
1547 }
1548
1549 function zrl_init(&$a) {
1550         $tmp_str = get_my_url();
1551         if(validate_url($tmp_str)) {
1552                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
1553                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
1554                 call_hooks('zrl_init',$arr);
1555         }
1556 }
1557
1558 function zrl($s,$force = false) {
1559         if(! strlen($s))
1560                 return $s;
1561         if((! strpos($s,'/profile/')) && (! $force))
1562                 return $s;
1563         if($force && substr($s,-1,1) !== '/')
1564                 $s = $s . '/';
1565         $achar = strpos($s,'?') ? '&' : '?';
1566         $mine = get_my_url();
1567         if($mine and ! link_compare($mine,$s))
1568                 return $s . $achar . 'zrl=' . urlencode($mine);
1569         return $s;
1570 }