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[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/datetime.php');
8 require_once('include/pgettext.php');
9 require_once('include/nav.php');
10 require_once('include/cache.php');
11 require_once('library/Mobile_Detect/Mobile_Detect.php');
12
13 define ( 'FRIENDICA_PLATFORM',     'Friendica');
14 define ( 'FRIENDICA_VERSION',      '3.0.1426' );
15 define ( 'DFRN_PROTOCOL_VERSION',  '2.23'    );
16 define ( 'DB_UPDATE_VERSION',      1154      );
17
18 define ( 'EOL',                    "<br />\r\n"     );
19 define ( 'ATOM_TIME',              'Y-m-d\TH:i:s\Z' );
20
21
22 /**
23  *
24  * Image storage quality. Lower numbers save space at cost of image detail.
25  * For ease of upgrade, please do not change here. Change jpeg quality with
26  * $a->config['system']['jpeg_quality'] = n;
27  * in .htconfig.php, where n is netween 1 and 100, and with very poor results
28  * below about 50
29  *
30  */
31
32 define ( 'JPEG_QUALITY',            100  );
33 /**
34  * $a->config['system']['png_quality'] from 0 (uncompressed) to 9
35  */
36 define ( 'PNG_QUALITY',             8  );
37
38 /**
39  *
40  * An alternate way of limiting picture upload sizes. Specify the maximum pixel
41  * length that pictures are allowed to be (for non-square pictures, it will apply
42  * to the longest side). Pictures longer than this length will be resized to be
43  * this length (on the longest side, the other side will be scaled appropriately).
44  * Modify this value using
45  *
46  *    $a->config['system']['max_image_length'] = n;
47  *
48  * in .htconfig.php
49  *
50  * If you don't want to set a maximum length, set to -1. The default value is
51  * defined by 'MAX_IMAGE_LENGTH' below.
52  *
53  */
54 define ( 'MAX_IMAGE_LENGTH',        -1  );
55
56
57 /**
58  * Not yet used
59  */
60
61 define ( 'DEFAULT_DB_ENGINE',  'MyISAM'  );
62
63 /**
64  * SSL redirection policies
65  */
66
67 define ( 'SSL_POLICY_NONE',         0 );
68 define ( 'SSL_POLICY_FULL',         1 );
69 define ( 'SSL_POLICY_SELFSIGN',     2 );
70
71
72 /**
73  * log levels
74  */
75
76 define ( 'LOGGER_NORMAL',          0 );
77 define ( 'LOGGER_TRACE',           1 );
78 define ( 'LOGGER_DEBUG',           2 );
79 define ( 'LOGGER_DATA',            3 );
80 define ( 'LOGGER_ALL',             4 );
81
82 /**
83  * registration policies
84  */
85
86 define ( 'REGISTER_CLOSED',        0 );
87 define ( 'REGISTER_APPROVE',       1 );
88 define ( 'REGISTER_OPEN',          2 );
89
90 /**
91  * relationship types
92  */
93
94 define ( 'CONTACT_IS_FOLLOWER', 1);
95 define ( 'CONTACT_IS_SHARING',  2);
96 define ( 'CONTACT_IS_FRIEND',   3);
97
98
99 /**
100  * DB update return values
101  */
102
103 define ( 'UPDATE_SUCCESS', 0);
104 define ( 'UPDATE_FAILED',  1);
105
106
107 /**
108  *
109  * page/profile types
110  *
111  * PAGE_NORMAL is a typical personal profile account
112  * PAGE_SOAPBOX automatically approves all friend requests as CONTACT_IS_SHARING, (readonly)
113  * PAGE_COMMUNITY automatically approves all friend requests as CONTACT_IS_SHARING, but with
114  *      write access to wall and comments (no email and not included in page owner's ACL lists)
115  * PAGE_FREELOVE automatically approves all friend requests as full friends (CONTACT_IS_FRIEND).
116  *
117  */
118
119 define ( 'PAGE_NORMAL',            0 );
120 define ( 'PAGE_SOAPBOX',           1 );
121 define ( 'PAGE_COMMUNITY',         2 );
122 define ( 'PAGE_FREELOVE',          3 );
123 define ( 'PAGE_BLOG',              4 );
124 define ( 'PAGE_PRVGROUP',          5 );
125
126 /**
127  * Network and protocol family types
128  */
129
130 define ( 'NETWORK_DFRN',             'dfrn');    // Friendica, Mistpark, other DFRN implementations
131 define ( 'NETWORK_ZOT',              'zot!');    // Zot!
132 define ( 'NETWORK_OSTATUS',          'stat');    // status.net, identi.ca, GNU-social, other OStatus implementations
133 define ( 'NETWORK_FEED',             'feed');    // RSS/Atom feeds with no known "post/notify" protocol
134 define ( 'NETWORK_DIASPORA',         'dspr');    // Diaspora
135 define ( 'NETWORK_MAIL',             'mail');    // IMAP/POP
136 define ( 'NETWORK_MAIL2',            'mai2');    // extended IMAP/POP
137 define ( 'NETWORK_FACEBOOK',         'face');    // Facebook API
138 define ( 'NETWORK_LINKEDIN',         'lnkd');    // LinkedIn
139 define ( 'NETWORK_XMPP',             'xmpp');    // XMPP
140 define ( 'NETWORK_MYSPACE',          'mysp');    // MySpace
141 define ( 'NETWORK_GPLUS',            'goog');    // Google+
142
143 define ( 'NETWORK_PHANTOM',          'unkn');    // Place holder
144
145 /**
146  * These numbers are used in stored permissions
147  * and existing allocations MUST NEVER BE CHANGED
148  * OR RE-ASSIGNED! You may only add to them.
149  */
150
151 $netgroup_ids = array(
152         NETWORK_DFRN     => (-1),
153         NETWORK_ZOT      => (-2),
154         NETWORK_OSTATUS  => (-3),
155         NETWORK_FEED     => (-4),
156         NETWORK_DIASPORA => (-5),
157         NETWORK_MAIL     => (-6),
158         NETWORK_MAIL2    => (-7),
159         NETWORK_FACEBOOK => (-8),
160         NETWORK_LINKEDIN => (-9),
161         NETWORK_XMPP     => (-10),
162         NETWORK_MYSPACE  => (-11),
163         NETWORK_GPLUS    => (-12),
164
165         NETWORK_PHANTOM  => (-127),
166 );
167
168
169 /**
170  * Maximum number of "people who like (or don't like) this"  that we will list by name
171  */
172
173 define ( 'MAX_LIKERS',    75);
174
175 /**
176  * Communication timeout
177  */
178
179 define ( 'ZCURL_TIMEOUT' , (-1));
180
181
182 /**
183  * email notification options
184  */
185
186 define ( 'NOTIFY_INTRO',    0x0001 );
187 define ( 'NOTIFY_CONFIRM',  0x0002 );
188 define ( 'NOTIFY_WALL',     0x0004 );
189 define ( 'NOTIFY_COMMENT',  0x0008 );
190 define ( 'NOTIFY_MAIL',     0x0010 );
191 define ( 'NOTIFY_SUGGEST',  0x0020 );
192 define ( 'NOTIFY_PROFILE',  0x0040 );
193 define ( 'NOTIFY_TAGSELF',  0x0080 );
194 define ( 'NOTIFY_TAGSHARE', 0x0100 );
195 define ( 'NOTIFY_POKE',     0x0200 );
196
197 define ( 'NOTIFY_SYSTEM',   0x8000 );
198
199
200 /**
201  * Tag/term types
202  */
203
204 define ( 'TERM_UNKNOWN',   0 );
205 define ( 'TERM_HASHTAG',   1 );
206 define ( 'TERM_MENTION',   2 );   
207 define ( 'TERM_CATEGORY',  3 );
208 define ( 'TERM_PCATEGORY', 4 );
209 define ( 'TERM_FILE',      5 );
210
211 define ( 'TERM_OBJ_POST',  1 );
212 define ( 'TERM_OBJ_PHOTO', 2 );
213
214
215
216 /**
217  * various namespaces we may need to parse
218  */
219
220 define ( 'NAMESPACE_ZOT',             'http://purl.org/zot' );
221 define ( 'NAMESPACE_DFRN' ,           'http://purl.org/macgirvin/dfrn/1.0' );
222 define ( 'NAMESPACE_THREAD' ,         'http://purl.org/syndication/thread/1.0' );
223 define ( 'NAMESPACE_TOMB' ,           'http://purl.org/atompub/tombstones/1.0' );
224 define ( 'NAMESPACE_ACTIVITY',        'http://activitystrea.ms/spec/1.0/' );
225 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
226 define ( 'NAMESPACE_MEDIA',           'http://purl.org/syndication/atommedia' );
227 define ( 'NAMESPACE_SALMON_ME',       'http://salmon-protocol.org/ns/magic-env' );
228 define ( 'NAMESPACE_OSTATUSSUB',      'http://ostatus.org/schema/1.0/subscribe' );
229 define ( 'NAMESPACE_GEORSS',          'http://www.georss.org/georss' );
230 define ( 'NAMESPACE_POCO',            'http://portablecontacts.net/spec/1.0' );
231 define ( 'NAMESPACE_FEED',            'http://schemas.google.com/g/2010#updates-from' );
232 define ( 'NAMESPACE_OSTATUS',         'http://ostatus.org/schema/1.0' );
233 define ( 'NAMESPACE_STATUSNET',       'http://status.net/schema/api/1/' );
234 define ( 'NAMESPACE_ATOM1',           'http://www.w3.org/2005/Atom' );
235 /**
236  * activity stream defines
237  */
238
239 define ( 'ACTIVITY_LIKE',        NAMESPACE_ACTIVITY_SCHEMA . 'like' );
240 define ( 'ACTIVITY_DISLIKE',     NAMESPACE_DFRN            . '/dislike' );
241 define ( 'ACTIVITY_OBJ_HEART',   NAMESPACE_DFRN            . '/heart' );
242
243 define ( 'ACTIVITY_FRIEND',      NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
244 define ( 'ACTIVITY_REQ_FRIEND',  NAMESPACE_ACTIVITY_SCHEMA . 'request-friend' );
245 define ( 'ACTIVITY_UNFRIEND',    NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend' );
246 define ( 'ACTIVITY_FOLLOW',      NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
247 define ( 'ACTIVITY_UNFOLLOW',    NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
248 define ( 'ACTIVITY_JOIN',        NAMESPACE_ACTIVITY_SCHEMA . 'join' );
249
250 define ( 'ACTIVITY_POST',        NAMESPACE_ACTIVITY_SCHEMA . 'post' );
251 define ( 'ACTIVITY_UPDATE',      NAMESPACE_ACTIVITY_SCHEMA . 'update' );
252 define ( 'ACTIVITY_TAG',         NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
253 define ( 'ACTIVITY_FAVORITE',    NAMESPACE_ACTIVITY_SCHEMA . 'favorite' );
254
255 define ( 'ACTIVITY_POKE',        NAMESPACE_ZOT . '/activity/poke' );
256
257 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
258 define ( 'ACTIVITY_OBJ_NOTE',    NAMESPACE_ACTIVITY_SCHEMA . 'note' );
259 define ( 'ACTIVITY_OBJ_PERSON',  NAMESPACE_ACTIVITY_SCHEMA . 'person' );
260 define ( 'ACTIVITY_OBJ_PHOTO',   NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
261 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
262 define ( 'ACTIVITY_OBJ_ALBUM',   NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
263 define ( 'ACTIVITY_OBJ_EVENT',   NAMESPACE_ACTIVITY_SCHEMA . 'event' );
264 define ( 'ACTIVITY_OBJ_GROUP',   NAMESPACE_ACTIVITY_SCHEMA . 'group' );
265 define ( 'ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN            . '/tagterm' );
266 define ( 'ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN            . '/profile' );
267
268 /**
269  * item weight for query ordering
270  */
271
272 define ( 'GRAVITY_PARENT',       0);
273 define ( 'GRAVITY_LIKE',         3);
274 define ( 'GRAVITY_COMMENT',      6);
275
276 /**
277  *
278  * Reverse the effect of magic_quotes_gpc if it is enabled.
279  * Please disable magic_quotes_gpc so we don't have to do this.
280  * See http://php.net/manual/en/security.magicquotes.disabling.php
281  *
282  */
283
284 function startup() {
285         error_reporting(E_ERROR | E_WARNING | E_PARSE);
286         set_time_limit(0);
287
288         // This has to be quite large to deal with embedded private photos
289         ini_set('pcre.backtrack_limit', 500000);
290
291
292         if (get_magic_quotes_gpc()) {
293                 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
294                 while (list($key, $val) = each($process)) {
295                         foreach ($val as $k => $v) {
296                                 unset($process[$key][$k]);
297                                 if (is_array($v)) {
298                                         $process[$key][stripslashes($k)] = $v;
299                                         $process[] = &$process[$key][stripslashes($k)];
300                                 } else {
301                                         $process[$key][stripslashes($k)] = stripslashes($v);
302                                 }
303                         }
304                 }
305                 unset($process);
306         }
307
308 }
309
310 /**
311  *
312  * class: App
313  *
314  * Our main application structure for the life of this page
315  * Primarily deals with the URL that got us here
316  * and tries to make some sense of it, and
317  * stores our page contents and config storage
318  * and anything else that might need to be passed around
319  * before we spit the page out.
320  *
321  */
322
323 if(! class_exists('App')) {
324         class App {
325
326                 public  $module_loaded = false;
327                 public  $query_string;
328                 public  $config;
329                 public  $page;
330                 public  $profile;
331                 public  $user;
332                 public  $cid;
333                 public  $contact;
334                 public  $contacts;
335                 public  $page_contact;
336                 public  $content;
337                 public  $data = array();
338                 public  $error = false;
339                 public  $cmd;
340                 public  $argv;
341                 public  $argc;
342                 public  $module;
343                 public  $pager;
344                 public  $strings;
345                 public  $path;
346                 public  $hooks;
347                 public  $timezone;
348                 public  $interactive = true;
349                 public  $plugins;
350                 public  $apps = array();
351                 public  $identities;
352                 public  $sourcename = '';
353         
354                 public $nav_sel;
355
356                 public $category;
357
358                 private $scheme;
359                 private $hostname;
360                 private $baseurl;
361                 private $db;
362
363                 private $curl_code;
364                 private $curl_headers;
365
366                 private $cached_profile_image;
367                 private $cached_profile_picdate;
368                                                         
369                 function __construct() {
370
371                         global $default_timezone;
372
373                         $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
374
375                         date_default_timezone_set($this->timezone);
376
377                         $this->config = array();
378                         $this->page = array();
379                         $this->pager= array();
380
381                         $this->query_string = '';
382
383                         startup();
384
385                         $this->scheme = 'http';
386                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
387                                 $this->scheme = 'https';
388                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
389                         $this->scheme = 'https';
390
391
392                         if(x($_SERVER,'SERVER_NAME')) {
393                                 $this->hostname = $_SERVER['SERVER_NAME'];
394
395                                 // See bug 437 - this didn't work so disabling it
396                                 //if(stristr($this->hostname,'xn--')) {
397                                         // PHP or webserver may have converted idn to punycode, so
398                                         // convert punycode back to utf-8
399                                 //      require_once('library/simplepie/idn/idna_convert.class.php');
400                                 //      $x = new idna_convert();
401                                 //      $this->hostname = $x->decode($_SERVER['SERVER_NAME']);
402                                 //}
403
404                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
405                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
406                                 /**
407                                  * Figure out if we are running at the top of a domain
408                                  * or in a sub-directory and adjust accordingly
409                                  */
410
411                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
412                                 if(isset($path) && strlen($path) && ($path != $this->path))
413                                         $this->path = $path;
414                         }
415
416                         set_include_path(
417                                         "include/$this->hostname" . PATH_SEPARATOR
418                                         . 'include' . PATH_SEPARATOR
419                                         . 'library' . PATH_SEPARATOR
420                                         . 'library/phpsec' . PATH_SEPARATOR
421                                         . 'library/langdet' . PATH_SEPARATOR
422                                         . '.' );
423
424                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
425                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
426                                 // removing trailing / - maybe a nginx problem
427                                 if (substr($this->query_string, 0, 1) == "/")
428                                         $this->query_string = substr($this->query_string, 1);
429                         }
430                         if(x($_GET,'q'))
431                                 $this->cmd = trim($_GET['q'],'/\\');
432
433                         // unix style "homedir"
434
435                         if(substr($this->cmd,0,1) === '~')
436                                 $this->cmd = 'profile/' . substr($this->cmd,1);
437
438                         // Diaspora style profile url
439
440                         if(substr($this->cmd,0,2) === 'u/')
441                                 $this->cmd = 'profile/' . substr($this->cmd,2);
442
443                         /**
444                          *
445                          * Break the URL path into C style argc/argv style arguments for our
446                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
447                          * will be 3 (integer) and $this->argv will contain:
448                          *   [0] => 'module'
449                          *   [1] => 'arg1'
450                          *   [2] => 'arg2'
451                          *
452                          *
453                          * There will always be one argument. If provided a naked domain
454                          * URL, $this->argv[0] is set to "home".
455                          *
456                          */
457
458                         $this->argv = explode('/',$this->cmd);
459                         $this->argc = count($this->argv);
460                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
461                                 $this->module = str_replace(".", "_", $this->argv[0]);
462                         }
463                         else {
464                                 $this->argc = 1;
465                                 $this->argv = array('home');
466                                 $this->module = 'home';
467                         }
468
469                         /**
470                          * Special handling for the webfinger/lrdd host XRD file
471                          */
472
473                         if($this->cmd === '.well-known/host-meta') {
474                                 $this->argc = 1;
475                                 $this->argv = array('hostxrd');
476                                 $this->module = 'hostxrd';
477                         }
478
479                         /**
480                          * See if there is any page number information, and initialise
481                          * pagination
482                          */
483
484                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
485                         $this->pager['itemspage'] = 50;
486                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
487                         if($this->pager['start'] < 0)
488                                 $this->pager['start'] = 0;
489                         $this->pager['total'] = 0;
490                 }
491
492                 function get_baseurl($ssl = false) {
493
494                         $scheme = $this->scheme;
495
496                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
497                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
498                                         $scheme = 'https';
499
500                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
501                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
502
503                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
504                                         if($ssl)
505                                                 $scheme = 'https';
506                                         else
507                                                 $scheme = 'http';
508                                 }
509                         }
510
511                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
512                         return $this->baseurl;
513                 }
514
515                 function set_baseurl($url) {
516                         $parsed = @parse_url($url);
517
518                         $this->baseurl = $url;
519
520                         if($parsed) {
521                                 $this->scheme = $parsed['scheme'];
522
523                                 $this->hostname = $parsed['host'];
524                                 if(x($parsed,'port'))
525                                         $this->hostname .= ':' . $parsed['port'];
526                                 if(x($parsed,'path'))
527                                         $this->path = trim($parsed['path'],'\\/');
528                         }
529
530                 }
531
532                 function get_hostname() {
533                         return $this->hostname;
534                 }
535
536                 function set_hostname($h) {
537                         $this->hostname = $h;
538                 }
539
540                 function set_path($p) {
541                         $this->path = trim(trim($p),'/');
542                 }
543
544                 function get_path() {
545                         return $this->path;
546                 }
547
548                 function set_pager_total($n) {
549                         $this->pager['total'] = intval($n);
550                 }
551
552                 function set_pager_itemspage($n) {
553                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
554                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
555
556                 }
557
558                 function init_pagehead() {
559                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
560                         if($interval < 10000)
561                                 $interval = 40000;
562
563                         $this->page['title'] = $this->config['sitename'];
564                         $tpl = get_markup_template('head.tpl');
565                         $this->page['htmlhead'] = replace_macros($tpl,array(
566                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
567                                 '$local_user' => local_user(),
568                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
569                                 '$delitem' => t('Delete this item?'),
570                                 '$comment' => t('Comment'),
571                                 '$showmore' => t('show more'),
572                                 '$showfewer' => t('show fewer'),
573                                 '$update_interval' => $interval
574                         ));
575                 }
576
577                 function init_page_end() {
578                         $tpl = get_markup_template('end.tpl');
579                         $this->page['end'] = replace_macros($tpl,array(
580                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
581                         ));
582                 }
583
584                 function set_curl_code($code) {
585                         $this->curl_code = $code;
586                 }
587
588                 function get_curl_code() {
589                         return $this->curl_code;
590                 }
591
592                 function set_curl_headers($headers) {
593                         $this->curl_headers = $headers;
594                 }
595
596                 function get_curl_headers() {
597                         return $this->curl_headers;
598                 }
599
600                 function get_cached_avatar_image($avatar_image){
601                         if($this->cached_profile_image[$avatar_image])
602                                 return $this->cached_profile_image[$avatar_image];
603
604                         $path_parts = explode("/",$avatar_image);
605                         $common_filename = $path_parts[count($path_parts)-1];
606
607                         if($this->cached_profile_picdate[$common_filename]){
608                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
609                         } else {
610                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like \"%%/%s\"",
611                                         $common_filename);
612                                 if(! count($r)){
613                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
614                                 } else {
615                                         $this->cached_profile_picdate[$common_filename] = "?rev=" . urlencode($r[0]['picdate']);
616                                         $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
617                                 }
618                         }
619                         return $this->cached_profile_image[$avatar_image];
620                 }
621
622
623         }
624 }
625
626 // retrieve the App structure
627 // useful in functions which require it but don't get it passed to them
628
629 if(! function_exists('get_app')) {
630         function get_app() {
631                 global $a;
632                 return $a;
633         }
634 };
635
636
637 // Multi-purpose function to check variable state.
638 // Usage: x($var) or $x($array,'key')
639 // returns false if variable/key is not set
640 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
641 // e.g. x('') or x(0) returns 0;
642
643 if(! function_exists('x')) {
644         function x($s,$k = NULL) {
645                 if($k != NULL) {
646                         if((is_array($s)) && (array_key_exists($k,$s))) {
647                                 if($s[$k])
648                                         return (int) 1;
649                                 return (int) 0;
650                 }
651                         return false;
652                 }
653                 else {
654                         if(isset($s)) {
655                                 if($s) {
656                                         return (int) 1;
657                                 }
658                                 return (int) 0;
659                         }
660                         return false;
661                 }
662         }
663 }
664
665 // called from db initialisation if db is dead.
666
667 if(! function_exists('system_unavailable')) {
668         function system_unavailable() {
669                 include('system_unavailable.php');
670                 system_down();
671                 killme();
672         }
673 }
674
675
676
677 function clean_urls() {
678         global $a;
679         //      if($a->config['system']['clean_urls'])
680         return true;
681         //      return false;
682 }
683
684 function z_path() {
685         global $a;
686         $base = $a->get_baseurl();
687         if(! clean_urls())
688                 $base .= '/?q=';
689         return $base;
690 }
691
692 function z_root() {
693         global $a;
694         return $a->get_baseurl();
695 }
696
697 function absurl($path) {
698         if(strpos($path,'/') === 0)
699                 return z_path() . $path;
700         return $path;
701 }
702
703 function is_ajax() {
704         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
705 }
706
707
708 // Primarily involved with database upgrade, but also sets the
709 // base url for use in cmdline programs which don't have
710 // $_SERVER variables, and synchronising the state of installed plugins.
711
712
713 if(! function_exists('check_config')) {
714         function check_config(&$a) {
715
716                 $build = get_config('system','build');
717                 if(! x($build))
718                         $build = set_config('system','build',DB_UPDATE_VERSION);
719
720                 $url = get_config('system','url');
721
722                 // if the url isn't set or the stored url is radically different
723                 // than the currently visited url, store the current value accordingly.
724                 // "Radically different" ignores common variations such as http vs https
725                 // and www.example.com vs example.com.
726
727                 if((! x($url)) || (! link_compare($url,$a->get_baseurl())))
728                         $url = set_config('system','url',$a->get_baseurl());
729
730                 if($build != DB_UPDATE_VERSION) {
731                         $stored = intval($build);
732                         $current = intval(DB_UPDATE_VERSION);
733                         if(($stored < $current) && file_exists('update.php')) {
734
735                                 load_config('database');
736
737                                 // We're reporting a different version than what is currently installed.
738                                 // Run any existing update scripts to bring the database up to current.
739
740                                 require_once('update.php');
741
742                                 // make sure that boot.php and update.php are the same release, we might be
743                                 // updating right this very second and the correct version of the update.php
744                                 // file may not be here yet. This can happen on a very busy site.
745
746                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
747
748                                         for($x = $stored; $x < $current; $x ++) {
749                                                 if(function_exists('update_' . $x)) {
750
751                                                         // There could be a lot of processes running or about to run.
752                                                         // We want exactly one process to run the update command.
753                                                         // So store the fact that we're taking responsibility
754                                                         // after first checking to see if somebody else already has.
755
756                                                         // If the update fails or times-out completely you may need to
757                                                         // delete the config entry to try again.
758
759                                                         $t = get_config('database','update_' . $x);
760                                                         if($t !== false)
761                                                                 break;
762                                                         set_config('database','update_' . $x, time());
763
764                                                         // call the specific update
765
766                                                         $func = 'update_' . $x;
767                                                         $retval = $func();
768                                                         if($retval) {
769                                                                 //send the administrator an e-mail
770                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
771                                                                 $email_msg = replace_macros($email_tpl, array(
772                                                                         '$sitename' => $a->config['sitename'],
773                                                                         '$siteurl' =>  $a->get_baseurl(),
774                                                                         '$update' => $x,
775                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
776                                                                 ));
777                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
778                                                                         
779                                                                 mail($a->config['admin_email'], $subject, $email_msg,
780                                                                         'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
781                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
782                                                                         . 'Content-transfer-encoding: 8bit' );
783                                                                 //try the logger
784                                                                 logger('CRITICAL: Update Failed: '. $x);
785                                                                 break;
786                                                         }
787                                                         else {
788                                                                 set_config('database','update_' . $x, 'success');
789                                                                 set_config('system','build', $x + 1);
790                                                         }                                                               
791                                                 }
792                                         }
793                                 }
794                         }
795                 }
796
797                 /**
798                  *
799                  * Synchronise plugins:
800                  *
801                  * $a->config['system']['addon'] contains a comma-separated list of names
802                  * of plugins/addons which are used on this system.
803                  * Go through the database list of already installed addons, and if we have
804                  * an entry, but it isn't in the config list, call the uninstall procedure
805                  * and mark it uninstalled in the database (for now we'll remove it).
806                  * Then go through the config list and if we have a plugin that isn't installed,
807                  * call the install procedure and add it to the database.
808                  *
809                  */
810
811                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
812                 if(count($r))
813                         $installed = $r;
814                 else
815                         $installed = array();
816
817                 $plugins = get_config('system','addon');
818                 $plugins_arr = array();
819
820                 if($plugins)
821                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
822
823                 $a->plugins = $plugins_arr;
824
825                 $installed_arr = array();
826
827                 if(count($installed)) {
828                         foreach($installed as $i) {
829                                 if(! in_array($i['name'],$plugins_arr)) {
830                                         uninstall_plugin($i['name']);
831                                 }
832                                 else {
833                                         $installed_arr[] = $i['name'];
834                                 }
835                         }
836                 }
837
838                 if(count($plugins_arr)) {
839                         foreach($plugins_arr as $p) {
840                                 if(! in_array($p,$installed_arr)) {
841                                         install_plugin($p);
842                                 }
843                         }
844                 }
845
846
847                 load_hooks();
848
849                 return;
850         }
851 }
852
853
854 function get_guid($size=16) {
855         $exists = true; // assume by default that we don't have a unique guid
856         do {
857                 $s = random_string($size);
858                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
859                 if(! count($r))
860                         $exists = false;
861         } while($exists);
862         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
863         return $s;
864 }
865
866
867 // wrapper for adding a login box. If $register == true provide a registration
868 // link. This will most always depend on the value of $a->config['register_policy'].
869 // returns the complete html for inserting into the page
870
871 if(! function_exists('login')) {
872         function login($register = false, $hiddens=false) {
873                 $a = get_app();
874                 $o = "";
875                 $reg = false;
876                 if ($register) {
877                         $reg = array(
878                                 'title' => t('Create a New Account'),
879                                 'desc' => t('Register')
880                         );
881                 }
882
883                 $noid = get_config('system','no_openid');
884         
885                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
886
887                 if(local_user()) {
888                         $tpl = get_markup_template("logout.tpl");
889                 }
890                 else {
891                         $tpl = get_markup_template("login.tpl");
892                         $_SESSION['return_url'] = $a->query_string;
893                 }
894
895
896                 $o .= replace_macros($tpl,array(
897
898                         '$dest_url'     => $dest_url,
899                         '$logout'       => t('Logout'),
900                         '$login'        => t('Login'),
901         
902                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
903                         '$lpassword'    => array('password', t('Password: '), '', ''),
904         
905                         '$openid'               => !$noid,
906                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
907         
908                         '$hiddens'      => $hiddens,
909         
910                         '$register'     => $reg,
911         
912                         '$lostpass'     => t('Forgot your password?'),
913                         '$lostlink'     => t('Password Reset'),
914                 ));
915
916                 call_hooks('login_hook',$o);
917
918                 return $o;
919         }
920 }
921
922 // Used to end the current process, after saving session state.
923
924 if(! function_exists('killme')) {
925         function killme() {
926                 session_write_close();
927                 exit;
928         }
929 }
930
931 // redirect to another URL and terminate this process.
932
933 if(! function_exists('goaway')) {
934         function goaway($s) {
935                 header("Location: $s");
936                 killme();
937         }
938 }
939
940
941 // Returns the uid of locally logged in user or false.
942
943 if(! function_exists('local_user')) {
944         function local_user() {
945                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
946                         return intval($_SESSION['uid']);
947                 return false;
948         }
949 }
950
951 // Returns contact id of authenticated site visitor or false
952
953 if(! function_exists('remote_user')) {
954         function remote_user() {
955                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
956                         return intval($_SESSION['visitor_id']);
957                 return false;
958         }
959 }
960
961 // contents of $s are displayed prominently on the page the next time
962 // a page is loaded. Usually used for errors or alerts.
963
964 if(! function_exists('notice')) {
965         function notice($s) {
966                 $a = get_app();
967                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
968                 if($a->interactive)
969                         $_SESSION['sysmsg'][] = $s;
970         }
971 }
972 if(! function_exists('info')) {
973         function info($s) {
974                 $a = get_app();
975                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
976                 if($a->interactive)
977                         $_SESSION['sysmsg_info'][] = $s;
978         }
979 }
980
981
982 // wrapper around config to limit the text length of an incoming message
983
984 if(! function_exists('get_max_import_size')) {
985         function get_max_import_size() {
986                 global $a;
987                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
988         }
989 }
990
991
992
993 /**
994  *
995  * Function : profile_load
996  * @parameter App    $a
997  * @parameter string $nickname
998  * @parameter int    $profile
999  *
1000  * Summary: Loads a profile into the page sidebar.
1001  * The function requires a writeable copy of the main App structure, and the nickname
1002  * of a registered local account.
1003  *
1004  * If the viewer is an authenticated remote viewer, the profile displayed is the
1005  * one that has been configured for his/her viewing in the Contact manager.
1006  * Passing a non-zero profile ID can also allow a preview of a selected profile
1007  * by the owner.
1008  *
1009  * Profile information is placed in the App structure for later retrieval.
1010  * Honours the owner's chosen theme for display.
1011  *
1012  */
1013
1014 if(! function_exists('profile_load')) {
1015         function profile_load(&$a, $nickname, $profile = 0) {
1016                 if(remote_user()) {
1017                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1018                                         intval($_SESSION['visitor_id']));
1019                         if(count($r))
1020                                 $profile = $r[0]['profile-id'];
1021                 }
1022
1023                 $r = null;
1024                           
1025                 if($profile) {
1026                         $profile_int = intval($profile);
1027                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1028                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1029                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1030                                         dbesc($nickname),
1031                                         intval($profile_int)
1032                         );
1033                 }
1034                 if((! $r) && (!  count($r))) {
1035                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1036                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1037                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1038                                         dbesc($nickname)
1039                         );
1040                 }
1041
1042                 if(($r === false) || (! count($r))) {
1043                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1044                         notice( t('Requested profile is not available.') . EOL );
1045                         $a->error = 404;
1046                         return;
1047                 }
1048         
1049                 // fetch user tags if this isn't the default profile
1050
1051                 if(! $r[0]['is-default']) {
1052                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1053                                         intval($profile_uid)
1054                         );
1055                         if($x && count($x))
1056                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1057                 }
1058
1059                 $a->profile = $r[0];
1060
1061
1062                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1063                 $_SESSION['theme'] = $a->profile['theme'];
1064
1065                 /**
1066                  * load/reload current theme info
1067                  */
1068
1069                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1070                 if (file_exists($theme_info_file)){
1071                         require_once($theme_info_file);
1072                 }
1073
1074                 if(! (x($a->page,'aside')))
1075                         $a->page['aside'] = '';
1076
1077                 if(local_user() && local_user() == $a->profile['uid']) {
1078                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1079                                 '$editprofile' => t('Edit profile'),
1080                                 '$profid' => $a->profile['id']
1081                         ));
1082                 }
1083
1084                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1085
1086                 $a->page['aside'] .= profile_sidebar($a->profile, $block);
1087
1088                 /*if(! $block)
1089                  $a->page['aside'] .= contact_block();*/
1090
1091                 return;
1092         }
1093 }
1094
1095
1096 /**
1097  *
1098  * Function: profile_sidebar
1099  *
1100  * Formats a profile for display in the sidebar.
1101  * It is very difficult to templatise the HTML completely
1102  * because of all the conditional logic.
1103  *
1104  * @parameter: array $profile
1105  *
1106  * Returns HTML string stuitable for sidebar inclusion
1107  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1108  *
1109  */
1110
1111
1112 if(! function_exists('profile_sidebar')) {
1113         function profile_sidebar($profile, $block = 0) {
1114
1115                 $a = get_app();
1116
1117                 $o = '';
1118                 $location = false;
1119                 $address = false;
1120                 $pdesc = true;
1121
1122                 if((! is_array($profile)) && (! count($profile)))
1123                         return $o;
1124
1125                 $profile['picdate'] = urlencode($profile['picdate']);
1126
1127                 call_hooks('profile_sidebar_enter', $profile);
1128
1129         
1130                 // don't show connect link to yourself
1131                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1132
1133                 // don't show connect link to authenticated visitors either
1134
1135                 if((remote_user()) && ($_SESSION['visitor_visiting'] == $profile['uid']))
1136                         $connect = False;
1137
1138                 if(get_my_url() && $profile['unkmail'])
1139                         $wallmessage = t('Message');
1140                 else
1141                         $wallmessage = false;
1142
1143
1144
1145                 // show edit profile to yourself
1146                 if ($profile['uid'] == local_user()) {
1147                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1148                 
1149                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1150                                         local_user());
1151                 
1152                         $profile['menu'] = array(
1153                                 'chg_photo' => t('Change profile photo'),
1154                                 'cr_new' => t('Create New Profile'),
1155                                 'entries' => array(),
1156                         );
1157
1158                         if(count($r)) {
1159
1160                                 foreach($r as $rr) {
1161                                         $profile['menu']['entries'][] = array(
1162                                                 'photo' => $rr['thumb'],
1163                                                 'id' => $rr['id'],
1164                                                 'alt' => t('Profile Image'),
1165                                                 'profile_name' => $rr['profile-name'],
1166                                                 'isdefault' => $rr['is-default'],
1167                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1168                                                 'edit_visibility' => t('Edit visibility'),
1169
1170                                         );
1171                                 }
1172
1173
1174                         }
1175
1176
1177                 }
1178
1179
1180
1181         
1182                 if((x($profile,'address') == 1)
1183                                 || (x($profile,'locality') == 1)
1184                                 || (x($profile,'region') == 1)
1185                                 || (x($profile,'postal-code') == 1)
1186                                 || (x($profile,'country-name') == 1))
1187                         $location = t('Location:');
1188
1189                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1190
1191
1192                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1193
1194                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1195
1196                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1197                         $location = $pdesc = $gender = $marital = $homepage = False;
1198                 }
1199
1200                 $firstname = ((strpos($profile['name'],' '))
1201                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1202                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1203
1204                 $diaspora = array(
1205                         'podloc' => $a->get_baseurl(),
1206                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1207                         'nickname' => $profile['nickname'],
1208                         'fullname' => $profile['name'],
1209                         'firstname' => $firstname,
1210                         'lastname' => $lastname,
1211                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1212                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1213                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1214                 );
1215
1216                 if (!$block){
1217                         $contact_block = contact_block();
1218                 }
1219
1220
1221                 $tpl = get_markup_template('profile_vcard.tpl');
1222
1223                 $o .= replace_macros($tpl, array(
1224                         '$profile' => $profile,
1225                         '$connect'  => $connect,
1226                         '$wallmessage' => $wallmessage,
1227                         '$location' => template_escape($location),
1228                         '$gender'   => $gender,
1229                         '$pdesc'        => $pdesc,
1230                         '$marital'  => $marital,
1231                         '$homepage' => $homepage,
1232                         '$diaspora' => $diaspora,
1233                         '$contact_block' => $contact_block,
1234                 ));
1235
1236
1237                 $arr = array('profile' => &$profile, 'entry' => &$o);
1238
1239                 call_hooks('profile_sidebar', $arr);
1240
1241                 return $o;
1242         }
1243 }
1244
1245
1246 if(! function_exists('get_birthdays')) {
1247         function get_birthdays() {
1248
1249                 $a = get_app();
1250                 $o = '';
1251
1252                 if(! local_user())
1253                         return $o;
1254
1255                 $mobile_detect = new Mobile_Detect();
1256                 $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1257
1258                 if($is_mobile)
1259                         return $o;
1260
1261                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1262                 $bd_short = t('F d');
1263
1264                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1265                                 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
1266                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1267                                 ORDER BY `start` ASC ",
1268                                 intval(local_user()),
1269                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1270                                 dbesc(datetime_convert('UTC','UTC','now'))
1271                 );
1272
1273                 if($r && count($r)) {
1274                         $total = 0;
1275                         $now = strtotime('now');
1276                         $cids = array();
1277
1278                         $istoday = false;
1279                         foreach($r as $rr) {
1280                                 if(strlen($rr['name']))
1281                                         $total ++;
1282                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1283                                         $istoday = true;
1284                         }
1285                         $classtoday = $istoday ? ' birthday-today ' : '';
1286                         if($total) {
1287                                 foreach($r as &$rr) {
1288                                         if(! strlen($rr['name']))
1289                                                 continue;
1290
1291                                         // avoid duplicates
1292
1293                                         if(in_array($rr['cid'],$cids))
1294                                                 continue;
1295                                         $cids[] = $rr['cid'];
1296
1297                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1298                                         $sparkle = '';
1299                                         $url = $rr['url'];
1300                                         if($rr['network'] === NETWORK_DFRN) {
1301                                                 $sparkle = " sparkle";
1302                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1303                                         }
1304         
1305                                         $rr['link'] = $url;
1306                                         $rr['title'] = $rr['name'];
1307                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1308                                         $rr['startime'] = Null;
1309                                         $rr['today'] = $today;
1310         
1311                                 }
1312                         }
1313                 }
1314                 $tpl = get_markup_template("birthdays_reminder.tpl");
1315                 return replace_macros($tpl, array(
1316                         '$baseurl' => $a->get_baseurl(),
1317                         '$classtoday' => $classtoday,
1318                         '$count' => $total,
1319                         '$event_reminders' => t('Birthday Reminders'),
1320                         '$event_title' => t('Birthdays this week:'),
1321                         '$events' => $r,
1322                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1323                         '$rbr' => '}'
1324
1325                 ));
1326         }
1327 }
1328
1329
1330 if(! function_exists('get_events')) {
1331         function get_events() {
1332
1333                 require_once('include/bbcode.php');
1334
1335                 $a = get_app();
1336
1337                 if(! local_user())
1338                         return $o;
1339
1340
1341                 $mobile_detect = new Mobile_Detect();
1342                 $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1343
1344                 if($is_mobile)
1345                         return $o;
1346
1347                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1348                 $bd_short = t('F d');
1349
1350                 $r = q("SELECT `event`.* FROM `event`
1351                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1352                                 ORDER BY `start` ASC ",
1353                                 intval(local_user()),
1354                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1355                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1356                 );
1357
1358                 if($r && count($r)) {
1359                         $now = strtotime('now');
1360                         $istoday = false;
1361                         foreach($r as $rr) {
1362                                 if(strlen($rr['name']))
1363                                         $total ++;
1364
1365                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1366                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1367                                         $istoday = true;
1368                         }
1369                         $classtoday = (($istoday) ? 'event-today' : '');
1370
1371
1372                         foreach($r as &$rr) {
1373                                 if($rr['adjust'])
1374                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1375                                 else
1376                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1377                                 $md .= "/#link-".$rr['id'];
1378
1379                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1380                                 if(! $title)
1381                                         $title = t('[No description]');
1382
1383                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1384                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1385                                 
1386                                 $rr['link'] = $md;
1387                                 $rr['title'] = $title;
1388                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1389                                 $rr['startime'] = $strt;
1390                                 $rr['today'] = $today;
1391                         }
1392                 }
1393
1394                 $tpl = get_markup_template("events_reminder.tpl");
1395                 return replace_macros($tpl, array(
1396                         '$baseurl' => $a->get_baseurl(),
1397                         '$classtoday' => $classtoday,
1398                         '$count' => count($r),
1399                         '$event_reminders' => t('Event Reminders'),
1400                         '$event_title' => t('Events this week:'),
1401                         '$events' => $r,
1402                 ));
1403         }
1404 }
1405
1406
1407 /**
1408  *
1409  * Wrap calls to proc_close(proc_open()) and call hook
1410  * so plugins can take part in process :)
1411  *
1412  * args:
1413  * $cmd program to run
1414  *  next args are passed as $cmd command line
1415  *
1416  * e.g.: proc_run("ls","-la","/tmp");
1417  *
1418  * $cmd and string args are surrounded with ""
1419  */
1420
1421 if(! function_exists('proc_run')) {
1422         function proc_run($cmd){
1423
1424                 $a = get_app();
1425
1426                 $args = func_get_args();
1427
1428                 $newargs = array();
1429                 if(! count($args))
1430                         return;
1431
1432                 // expand any arrays
1433
1434                 foreach($args as $arg) {
1435                         if(is_array($arg)) {
1436                                 foreach($arg as $n) {
1437                                         $newargs[] = $n;
1438                                 }
1439                         }
1440                         else
1441                                 $newargs[] = $arg;
1442                 }
1443
1444                 $args = $newargs;
1445                 
1446                 $arr = array('args' => $args, 'run_cmd' => true);
1447
1448                 call_hooks("proc_run", $arr);
1449                 if(! $arr['run_cmd'])
1450                         return;
1451
1452                 if(count($args) && $args[0] === 'php')
1453                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1454                 for($x = 0; $x < count($args); $x ++)
1455                         $args[$x] = escapeshellarg($args[$x]);
1456
1457                 $cmdline = implode($args," ");
1458                 proc_close(proc_open($cmdline." &",array(),$foo));
1459         }
1460 }
1461
1462 if(! function_exists('current_theme')) {
1463         function current_theme(){
1464                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1465         
1466                 $a = get_app();
1467         
1468                 $mobile_detect = new Mobile_Detect();
1469                 $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1470         
1471                 if($is_mobile) {
1472                         $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1473                         $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1474                 }
1475                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1476                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1477                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1478                 }
1479
1480                 if($theme_name &&
1481                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1482                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1483                         return($theme_name);
1484         
1485                 foreach($app_base_themes as $t) {
1486                         if(file_exists('view/theme/' . $t . '/style.css')||
1487                                         file_exists('view/theme/' . $t . '/style.php'))
1488                                 return($t);
1489                 }
1490         
1491                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1492                 if(count($fallback))
1493                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1494         
1495         }
1496 }
1497
1498 /*
1499  * Return full URL to theme which is currently in effect.
1500 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1501 */
1502 if(! function_exists('current_theme_url')) {
1503         function current_theme_url() {
1504                 global $a;
1505                 $t = current_theme();
1506                 if (file_exists('view/theme/' . $t . '/style.php'))
1507                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1508                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1509         }
1510 }
1511
1512 if(! function_exists('feed_birthday')) {
1513         function feed_birthday($uid,$tz) {
1514
1515                 /**
1516                  *
1517                  * Determine the next birthday, but only if the birthday is published
1518                  * in the default profile. We _could_ also look for a private profile that the
1519                  * recipient can see, but somebody could get mad at us if they start getting
1520                  * public birthday greetings when they haven't made this info public.
1521                  *
1522                  * Assuming we are able to publish this info, we are then going to convert
1523                  * the start time from the owner's timezone to UTC.
1524                  *
1525                  * This will potentially solve the problem found with some social networks
1526                  * where birthdays are converted to the viewer's timezone and salutations from
1527                  * elsewhere in the world show up on the wrong day. We will convert it to the
1528                  * viewer's timezone also, but first we are going to convert it from the birthday
1529                  * person's timezone to GMT - so the viewer may find the birthday starting at
1530                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1531                  *
1532                  */
1533
1534         
1535                 $birthday = '';
1536
1537                 if(! strlen($tz))
1538                         $tz = 'UTC';
1539
1540                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1541                                 intval($uid)
1542                 );
1543
1544                 if($p && count($p)) {
1545                         $tmp_dob = substr($p[0]['dob'],5);
1546                         if(intval($tmp_dob)) {
1547                                 $y = datetime_convert($tz,$tz,'now','Y');
1548                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1549                                 $t_dob = strtotime($bd);
1550                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1551                                 if($t_dob < $now)
1552                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1553                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
1554                         }
1555                 }
1556
1557                 return $birthday;
1558         }
1559 }
1560
1561 if(! function_exists('is_site_admin')) {
1562         function is_site_admin() {
1563                 $a = get_app();
1564                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1565                         return true;
1566                 return false;
1567         }
1568 }
1569
1570
1571 if(! function_exists('load_contact_links')) {
1572         function load_contact_links($uid) {
1573
1574                 $a = get_app();
1575
1576                 $ret = array();
1577
1578                 if(! $uid || x($a->contacts,'empty'))
1579                         return;
1580
1581                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
1582                                 intval($uid)
1583                 );
1584                 if(count($r)) {
1585                         foreach($r as $rr){
1586                                 $url = normalise_link($rr['url']);
1587                                 $ret[$url] = $rr;
1588                         }
1589                 }
1590                 else
1591                         $ret['empty'] = true;
1592                 $a->contacts = $ret;
1593                 return;
1594         }
1595 }
1596
1597 if(! function_exists('profile_tabs')){
1598         function profile_tabs($a, $is_owner=False, $nickname=Null){
1599                 //echo "<pre>"; var_dump($a->user); killme();
1600         
1601                 if (is_null($nickname))
1602                         $nickname  = $a->user['nickname'];
1603                 
1604                 if(x($_GET,'tab'))
1605                         $tab = notags(trim($_GET['tab']));
1606         
1607                 $url = $a->get_baseurl() . '/profile/' . $nickname;
1608
1609                 $tabs = array(
1610                         array(
1611                                 'label'=>t('Status'),
1612                                 'url' => $url,
1613                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
1614                                 'title' => t('Status Messages and Posts'),
1615                                 'id' => 'status-tab',
1616                         ),
1617                         array(
1618                                 'label' => t('Profile'),
1619                                 'url'   => $url.'/?tab=profile',
1620                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
1621                                 'title' => t('Profile Details'),
1622                                 'id' => 'profile-tab',
1623                         ),
1624                         array(
1625                                 'label' => t('Photos'),
1626                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
1627                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
1628                                 'title' => t('Photo Albums'),
1629                                 'id' => 'photo-tab',
1630                         ),
1631                 );
1632         
1633                 if ($is_owner){
1634                         $tabs[] = array(
1635                                 'label' => t('Events'),
1636                                 'url'   => $a->get_baseurl() . '/events',
1637                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
1638                                 'title' => t('Events and Calendar'),
1639                                 'id' => 'events-tab',
1640                         );
1641                         $tabs[] = array(
1642                                 'label' => t('Personal Notes'),
1643                                 'url'   => $a->get_baseurl() . '/notes',
1644                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
1645                                 'title' => t('Only You Can See This'),
1646                                 'id' => 'notes-tab',
1647                         );
1648                 }
1649
1650
1651                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
1652                 call_hooks('profile_tabs', $arr);
1653         
1654                 $tpl = get_markup_template('common_tabs.tpl');
1655
1656                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
1657         }
1658 }
1659
1660 function get_my_url() {
1661         if(x($_SESSION,'my_url'))
1662                 return $_SESSION['my_url'];
1663         return false;
1664 }
1665
1666 function zrl_init(&$a) {
1667         $tmp_str = get_my_url();
1668         if(validate_url($tmp_str)) {
1669                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
1670                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
1671                 call_hooks('zrl_init',$arr);
1672         }
1673 }
1674
1675 function zrl($s,$force = false) {
1676         if(! strlen($s))
1677                 return $s;
1678         if((! strpos($s,'/profile/')) && (! $force))
1679                 return $s;
1680         if($force && substr($s,-1,1) !== '/')
1681                 $s = $s . '/';
1682         $achar = strpos($s,'?') ? '&' : '?';
1683         $mine = get_my_url();
1684         if($mine and ! link_compare($mine,$s))
1685                 return $s . $achar . 'zrl=' . urlencode($mine);
1686         return $s;
1687 }
1688
1689 /**
1690 * returns querystring as string from a mapped array
1691 *
1692 * @param params Array 
1693 * @return string
1694 */
1695 function build_querystring($params, $name=null) { 
1696     $ret = ""; 
1697     foreach($params as $key=>$val) {
1698         if(is_array($val)) { 
1699             if($name==null) {
1700                 $ret .= build_querystring($val, $key); 
1701             } else {
1702                 $ret .= build_querystring($val, $name."[$key]");    
1703             }
1704         } else {
1705             $val = urlencode($val);
1706             if($name!=null) {
1707                 $ret.=$name."[$key]"."=$val&"; 
1708             } else {
1709                 $ret.= "$key=$val&"; 
1710             }
1711         } 
1712     } 
1713     return $ret;    
1714 }