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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',      '3.0.1518' );
15 define ( 'DFRN_PROTOCOL_VERSION',  '2.23'    );
16 define ( 'DB_UPDATE_VERSION',      1156      );
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 define ( 'ACTIVITY_MOOD',        NAMESPACE_ZOT . '/activity/mood' );
257
258 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
259 define ( 'ACTIVITY_OBJ_NOTE',    NAMESPACE_ACTIVITY_SCHEMA . 'note' );
260 define ( 'ACTIVITY_OBJ_PERSON',  NAMESPACE_ACTIVITY_SCHEMA . 'person' );
261 define ( 'ACTIVITY_OBJ_PHOTO',   NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
262 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
263 define ( 'ACTIVITY_OBJ_ALBUM',   NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
264 define ( 'ACTIVITY_OBJ_EVENT',   NAMESPACE_ACTIVITY_SCHEMA . 'event' );
265 define ( 'ACTIVITY_OBJ_GROUP',   NAMESPACE_ACTIVITY_SCHEMA . 'group' );
266 define ( 'ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN            . '/tagterm' );
267 define ( 'ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN            . '/profile' );
268
269 /**
270  * item weight for query ordering
271  */
272
273 define ( 'GRAVITY_PARENT',       0);
274 define ( 'GRAVITY_LIKE',         3);
275 define ( 'GRAVITY_COMMENT',      6);
276
277 /**
278  *
279  * Reverse the effect of magic_quotes_gpc if it is enabled.
280  * Please disable magic_quotes_gpc so we don't have to do this.
281  * See http://php.net/manual/en/security.magicquotes.disabling.php
282  *
283  */
284
285 function startup() {
286         
287         error_reporting(E_ERROR | E_WARNING | E_PARSE);
288
289         set_time_limit(0);
290
291         // This has to be quite large to deal with embedded private photos
292         ini_set('pcre.backtrack_limit', 500000);
293
294
295         if (get_magic_quotes_gpc()) {
296                 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
297                 while (list($key, $val) = each($process)) {
298                         foreach ($val as $k => $v) {
299                                 unset($process[$key][$k]);
300                                 if (is_array($v)) {
301                                         $process[$key][stripslashes($k)] = $v;
302                                         $process[] = &$process[$key][stripslashes($k)];
303                                 } else {
304                                         $process[$key][stripslashes($k)] = stripslashes($v);
305                                 }
306                         }
307                 }
308                 unset($process);
309         }
310
311 }
312
313 /**
314  *
315  * class: App
316  *
317  * Our main application structure for the life of this page
318  * Primarily deals with the URL that got us here
319  * and tries to make some sense of it, and
320  * stores our page contents and config storage
321  * and anything else that might need to be passed around
322  * before we spit the page out.
323  *
324  */
325
326 if(! class_exists('App')) {
327         class App {
328
329                 public  $module_loaded = false;
330                 public  $query_string;
331                 public  $config;
332                 public  $page;
333                 public  $profile;
334                 public  $user;
335                 public  $cid;
336                 public  $contact;
337                 public  $contacts;
338                 public  $page_contact;
339                 public  $content;
340                 public  $data = array();
341                 public  $error = false;
342                 public  $cmd;
343                 public  $argv;
344                 public  $argc;
345                 public  $module;
346                 public  $pager;
347                 public  $strings;
348                 public  $path;
349                 public  $hooks;
350                 public  $timezone;
351                 public  $interactive = true;
352                 public  $plugins;
353                 public  $apps = array();
354                 public  $identities;
355                 public  $is_mobile;
356                 public  $is_tablet;
357         
358                 public $nav_sel;
359
360                 public $category;
361
362                 // Allow themes to control internal parameters
363                 // by changing App values in theme.php
364                 //
365                 // Possibly should make these part of the plugin
366                 // system, but it seems like overkill to invoke
367                 // all the plugin machinery just to change a couple
368                 // of values
369                 public  $sourcename = '';
370                 public  $videowidth = 425;
371                 public  $videoheight = 350;
372                 public  $force_max_items = 0;
373                 public  $theme_thread_allow = true;
374
375                 private $scheme;
376                 private $hostname;
377                 private $baseurl;
378                 private $db;
379
380                 private $curl_code;
381                 private $curl_headers;
382
383                 private $cached_profile_image;
384                 private $cached_profile_picdate;
385                                                         
386                 function __construct() {
387
388                         global $default_timezone, $argv, $argc;
389
390                         $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
391
392                         date_default_timezone_set($this->timezone);
393
394                         $this->config = array();
395                         $this->page = array();
396                         $this->pager= array();
397
398                         $this->query_string = '';
399
400                         startup();
401
402                         $this->scheme = 'http';
403                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
404                                 $this->scheme = 'https';
405                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
406                         $this->scheme = 'https';
407
408                         if(x($_SERVER,'SERVER_NAME')) {
409                                 $this->hostname = $_SERVER['SERVER_NAME'];
410
411                                 // See bug 437 - this didn't work so disabling it
412                                 //if(stristr($this->hostname,'xn--')) {
413                                         // PHP or webserver may have converted idn to punycode, so
414                                         // convert punycode back to utf-8
415                                 //      require_once('library/simplepie/idn/idna_convert.class.php');
416                                 //      $x = new idna_convert();
417                                 //      $this->hostname = $x->decode($_SERVER['SERVER_NAME']);
418                                 //}
419
420                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
421                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
422                                 /**
423                                  * Figure out if we are running at the top of a domain
424                                  * or in a sub-directory and adjust accordingly
425                                  */
426
427                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
428                                 if(isset($path) && strlen($path) && ($path != $this->path))
429                                         $this->path = $path;
430                         }
431                         if (is_array($argv) && $argc>1 && !x($_SERVER,'SERVER_NAME') && substr(end($argv), 0, 4)=="http" ) {
432                                 $this->set_baseurl(array_pop($argv) );
433                         }
434
435                         set_include_path(
436                                         "include/$this->hostname" . PATH_SEPARATOR
437                                         . 'include' . PATH_SEPARATOR
438                                         . 'library' . PATH_SEPARATOR
439                                         . 'library/phpsec' . PATH_SEPARATOR
440                                         . 'library/langdet' . PATH_SEPARATOR
441                                         . '.' );
442             
443
444                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
445                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
446                                 // removing trailing / - maybe a nginx problem
447                                 if (substr($this->query_string, 0, 1) == "/")
448                                         $this->query_string = substr($this->query_string, 1);
449                         }
450                         if(x($_GET,'q'))
451                                 $this->cmd = trim($_GET['q'],'/\\');
452
453                         // unix style "homedir"
454
455                         if(substr($this->cmd,0,1) === '~')
456                                 $this->cmd = 'profile/' . substr($this->cmd,1);
457
458                         // Diaspora style profile url
459
460                         if(substr($this->cmd,0,2) === 'u/')
461                                 $this->cmd = 'profile/' . substr($this->cmd,2);
462
463                         /**
464                          *
465                          * Break the URL path into C style argc/argv style arguments for our
466                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
467                          * will be 3 (integer) and $this->argv will contain:
468                          *   [0] => 'module'
469                          *   [1] => 'arg1'
470                          *   [2] => 'arg2'
471                          *
472                          *
473                          * There will always be one argument. If provided a naked domain
474                          * URL, $this->argv[0] is set to "home".
475                          *
476                          */
477
478                         $this->argv = explode('/',$this->cmd);
479                         $this->argc = count($this->argv);
480                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
481                                 $this->module = str_replace(".", "_", $this->argv[0]);
482                                 $this->module = str_replace("-", "_", $this->module);
483                         }
484                         else {
485                                 $this->argc = 1;
486                                 $this->argv = array('home');
487                                 $this->module = 'home';
488                         }
489
490                         /**
491                          * See if there is any page number information, and initialise
492                          * pagination
493                          */
494
495                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
496                         $this->pager['itemspage'] = 50;
497                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
498                         if($this->pager['start'] < 0)
499                                 $this->pager['start'] = 0;
500                         $this->pager['total'] = 0;
501
502                         /**
503                          * Detect mobile devices
504                          */
505
506                         $mobile_detect = new Mobile_Detect();
507                         $this->is_mobile = $mobile_detect->isMobile();
508                         $this->is_tablet = $mobile_detect->isTablet();
509                 }
510
511                 function get_baseurl($ssl = false) {
512
513                         $scheme = $this->scheme;
514
515                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
516                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
517                                         $scheme = 'https';
518
519                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
520                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
521
522                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
523                                         if($ssl)
524                                                 $scheme = 'https';
525                                         else
526                                                 $scheme = 'http';
527                                 }
528                         }
529
530                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
531                         return $this->baseurl;
532                 }
533
534                 function set_baseurl($url) {
535                         $parsed = @parse_url($url);
536
537                         $this->baseurl = $url;
538
539                         if($parsed) {
540                                 $this->scheme = $parsed['scheme'];
541
542                                 $this->hostname = $parsed['host'];
543                                 if(x($parsed,'port'))
544                                         $this->hostname .= ':' . $parsed['port'];
545                                 if(x($parsed,'path'))
546                                         $this->path = trim($parsed['path'],'\\/');
547                         }
548
549                 }
550
551                 function get_hostname() {
552                         return $this->hostname;
553                 }
554
555                 function set_hostname($h) {
556                         $this->hostname = $h;
557                 }
558
559                 function set_path($p) {
560                         $this->path = trim(trim($p),'/');
561                 }
562
563                 function get_path() {
564                         return $this->path;
565                 }
566
567                 function set_pager_total($n) {
568                         $this->pager['total'] = intval($n);
569                 }
570
571                 function set_pager_itemspage($n) {
572                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
573                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
574
575                 }
576
577                 function init_pagehead() {
578                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
579                         if($interval < 10000)
580                                 $interval = 40000;
581
582                         $this->page['title'] = $this->config['sitename'];
583                         $tpl = get_markup_template('head.tpl');
584                         $this->page['htmlhead'] = replace_macros($tpl,array(
585                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
586                                 '$local_user' => local_user(),
587                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
588                                 '$delitem' => t('Delete this item?'),
589                                 '$comment' => t('Comment'),
590                                 '$showmore' => t('show more'),
591                                 '$showfewer' => t('show fewer'),
592                                 '$update_interval' => $interval
593                         ));
594                 }
595
596                 function init_page_end() {
597                         $tpl = get_markup_template('end.tpl');
598                         $this->page['end'] = replace_macros($tpl,array(
599                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
600                         ));
601                 }
602
603                 function set_curl_code($code) {
604                         $this->curl_code = $code;
605                 }
606
607                 function get_curl_code() {
608                         return $this->curl_code;
609                 }
610
611                 function set_curl_headers($headers) {
612                         $this->curl_headers = $headers;
613                 }
614
615                 function get_curl_headers() {
616                         return $this->curl_headers;
617                 }
618
619                 function get_cached_avatar_image($avatar_image){
620                         if($this->cached_profile_image[$avatar_image])
621                                 return $this->cached_profile_image[$avatar_image];
622
623                         $path_parts = explode("/",$avatar_image);
624                         $common_filename = $path_parts[count($path_parts)-1];
625
626                         if($this->cached_profile_picdate[$common_filename]){
627                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
628                         } else {
629                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like \"%%/%s\"",
630                                         $common_filename);
631                                 if(! count($r)){
632                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
633                                 } else {
634                                         $this->cached_profile_picdate[$common_filename] = "?rev=" . urlencode($r[0]['picdate']);
635                                         $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
636                                 }
637                         }
638                         return $this->cached_profile_image[$avatar_image];
639                 }
640
641
642         }
643 }
644
645 // retrieve the App structure
646 // useful in functions which require it but don't get it passed to them
647
648 if(! function_exists('get_app')) {
649         function get_app() {
650                 global $a;
651                 return $a;
652         }
653 };
654
655
656 // Multi-purpose function to check variable state.
657 // Usage: x($var) or $x($array,'key')
658 // returns false if variable/key is not set
659 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
660 // e.g. x('') or x(0) returns 0;
661
662 if(! function_exists('x')) {
663         function x($s,$k = NULL) {
664                 if($k != NULL) {
665                         if((is_array($s)) && (array_key_exists($k,$s))) {
666                                 if($s[$k])
667                                         return (int) 1;
668                                 return (int) 0;
669                 }
670                         return false;
671                 }
672                 else {
673                         if(isset($s)) {
674                                 if($s) {
675                                         return (int) 1;
676                                 }
677                                 return (int) 0;
678                         }
679                         return false;
680                 }
681         }
682 }
683
684 // called from db initialisation if db is dead.
685
686 if(! function_exists('system_unavailable')) {
687         function system_unavailable() {
688                 include('system_unavailable.php');
689                 system_down();
690                 killme();
691         }
692 }
693
694
695
696 function clean_urls() {
697         global $a;
698         //      if($a->config['system']['clean_urls'])
699         return true;
700         //      return false;
701 }
702
703 function z_path() {
704         global $a;
705         $base = $a->get_baseurl();
706         if(! clean_urls())
707                 $base .= '/?q=';
708         return $base;
709 }
710
711 function z_root() {
712         global $a;
713         return $a->get_baseurl();
714 }
715
716 function absurl($path) {
717         if(strpos($path,'/') === 0)
718                 return z_path() . $path;
719         return $path;
720 }
721
722 function is_ajax() {
723         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
724 }
725
726
727 // Primarily involved with database upgrade, but also sets the
728 // base url for use in cmdline programs which don't have
729 // $_SERVER variables, and synchronising the state of installed plugins.
730
731
732 if(! function_exists('check_config')) {
733         function check_config(&$a) {
734
735                 $build = get_config('system','build');
736                 if(! x($build))
737                         $build = set_config('system','build',DB_UPDATE_VERSION);
738
739                 $url = get_config('system','url');
740
741                 // if the url isn't set or the stored url is radically different
742                 // than the currently visited url, store the current value accordingly.
743                 // "Radically different" ignores common variations such as http vs https
744                 // and www.example.com vs example.com.
745                 // We will only change the url to an ip address if there is no existing setting
746
747                 if(! x($url))
748                         $url = set_config('system','url',$a->get_baseurl());
749                 if((! link_compare($url,$a->get_baseurl())) && (! preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/",$a->get_hostname)))
750                         $url = set_config('system','url',$a->get_baseurl());
751
752
753                 if($build != DB_UPDATE_VERSION) {
754                         $stored = intval($build);
755                         $current = intval(DB_UPDATE_VERSION);
756                         if(($stored < $current) && file_exists('update.php')) {
757
758                                 load_config('database');
759
760                                 // We're reporting a different version than what is currently installed.
761                                 // Run any existing update scripts to bring the database up to current.
762
763                                 require_once('update.php');
764
765                                 // make sure that boot.php and update.php are the same release, we might be
766                                 // updating right this very second and the correct version of the update.php
767                                 // file may not be here yet. This can happen on a very busy site.
768
769                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
770
771                                         for($x = $stored; $x < $current; $x ++) {
772                                                 if(function_exists('update_' . $x)) {
773
774                                                         // There could be a lot of processes running or about to run.
775                                                         // We want exactly one process to run the update command.
776                                                         // So store the fact that we're taking responsibility
777                                                         // after first checking to see if somebody else already has.
778
779                                                         // If the update fails or times-out completely you may need to
780                                                         // delete the config entry to try again.
781
782                                                         $t = get_config('database','update_' . $x);
783                                                         if($t !== false)
784                                                                 break;
785                                                         set_config('database','update_' . $x, time());
786
787                                                         // call the specific update
788
789                                                         $func = 'update_' . $x;
790                                                         $retval = $func();
791                                                         if($retval) {
792                                                                 //send the administrator an e-mail
793                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
794                                                                 $email_msg = replace_macros($email_tpl, array(
795                                                                         '$sitename' => $a->config['sitename'],
796                                                                         '$siteurl' =>  $a->get_baseurl(),
797                                                                         '$update' => $x,
798                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
799                                                                 ));
800                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
801                                                                         
802                                                                 mail($a->config['admin_email'], $subject, $email_msg,
803                                                                         'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
804                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
805                                                                         . 'Content-transfer-encoding: 8bit' );
806                                                                 //try the logger
807                                                                 logger('CRITICAL: Update Failed: '. $x);
808                                                                 break;
809                                                         }
810                                                         else {
811                                                                 set_config('database','update_' . $x, 'success');
812                                                                 set_config('system','build', $x + 1);
813                                                         }                                                               
814                                                 }
815                                         }
816                                 }
817                         }
818                 }
819
820                 /**
821                  *
822                  * Synchronise plugins:
823                  *
824                  * $a->config['system']['addon'] contains a comma-separated list of names
825                  * of plugins/addons which are used on this system.
826                  * Go through the database list of already installed addons, and if we have
827                  * an entry, but it isn't in the config list, call the uninstall procedure
828                  * and mark it uninstalled in the database (for now we'll remove it).
829                  * Then go through the config list and if we have a plugin that isn't installed,
830                  * call the install procedure and add it to the database.
831                  *
832                  */
833
834                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
835                 if(count($r))
836                         $installed = $r;
837                 else
838                         $installed = array();
839
840                 $plugins = get_config('system','addon');
841                 $plugins_arr = array();
842
843                 if($plugins)
844                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
845
846                 $a->plugins = $plugins_arr;
847
848                 $installed_arr = array();
849
850                 if(count($installed)) {
851                         foreach($installed as $i) {
852                                 if(! in_array($i['name'],$plugins_arr)) {
853                                         uninstall_plugin($i['name']);
854                                 }
855                                 else {
856                                         $installed_arr[] = $i['name'];
857                                 }
858                         }
859                 }
860
861                 if(count($plugins_arr)) {
862                         foreach($plugins_arr as $p) {
863                                 if(! in_array($p,$installed_arr)) {
864                                         install_plugin($p);
865                                 }
866                         }
867                 }
868
869
870                 load_hooks();
871
872                 return;
873         }
874 }
875
876
877 function get_guid($size=16) {
878         $exists = true; // assume by default that we don't have a unique guid
879         do {
880                 $s = random_string($size);
881                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
882                 if(! count($r))
883                         $exists = false;
884         } while($exists);
885         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
886         return $s;
887 }
888
889
890 // wrapper for adding a login box. If $register == true provide a registration
891 // link. This will most always depend on the value of $a->config['register_policy'].
892 // returns the complete html for inserting into the page
893
894 if(! function_exists('login')) {
895         function login($register = false, $hiddens=false) {
896                 $a = get_app();
897                 $o = "";
898                 $reg = false;
899                 if ($register) {
900                         $reg = array(
901                                 'title' => t('Create a New Account'),
902                                 'desc' => t('Register')
903                         );
904                 }
905
906                 $noid = get_config('system','no_openid');
907         
908                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
909
910                 if(local_user()) {
911                         $tpl = get_markup_template("logout.tpl");
912                 }
913                 else {
914                         $a->page['htmlhead'] .= replace_macros(get_markup_template("login_head.tpl"),array(
915                                 '$baseurl'              => $a->get_baseurl(true)
916                         ));
917
918                         $tpl = get_markup_template("login.tpl");
919                         $_SESSION['return_url'] = $a->query_string;
920                 }
921
922
923                 $o .= replace_macros($tpl,array(
924
925                         '$dest_url'     => $dest_url,
926                         '$logout'       => t('Logout'),
927                         '$login'        => t('Login'),
928         
929                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
930                         '$lpassword'    => array('password', t('Password: '), '', ''),
931         
932                         '$openid'               => !$noid,
933                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
934         
935                         '$hiddens'      => $hiddens,
936         
937                         '$register'     => $reg,
938         
939                         '$lostpass'     => t('Forgot your password?'),
940                         '$lostlink'     => t('Password Reset'),
941                 ));
942
943                 call_hooks('login_hook',$o);
944
945                 return $o;
946         }
947 }
948
949 // Used to end the current process, after saving session state.
950
951 if(! function_exists('killme')) {
952         function killme() {
953                 session_write_close();
954                 exit;
955         }
956 }
957
958 // redirect to another URL and terminate this process.
959
960 if(! function_exists('goaway')) {
961         function goaway($s) {
962                 header("Location: $s");
963                 killme();
964         }
965 }
966
967
968 // Returns the uid of locally logged in user or false.
969
970 if(! function_exists('local_user')) {
971         function local_user() {
972                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
973                         return intval($_SESSION['uid']);
974                 return false;
975         }
976 }
977
978 // Returns contact id of authenticated site visitor or false
979
980 if(! function_exists('remote_user')) {
981         function remote_user() {
982                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
983                         return intval($_SESSION['visitor_id']);
984                 return false;
985         }
986 }
987
988 // contents of $s are displayed prominently on the page the next time
989 // a page is loaded. Usually used for errors or alerts.
990
991 if(! function_exists('notice')) {
992         /**
993          * Show an error message to user.
994          * 
995          * This function save text in session, to be shown to the user at next page load
996          * 
997          * @param string $s - Text of notice
998          */
999         function notice($s) {
1000                 $a = get_app();
1001                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
1002                 if($a->interactive)
1003                         $_SESSION['sysmsg'][] = $s;
1004         }
1005 }
1006 if(! function_exists('info')) {
1007         /**
1008          * Show an info message to user.
1009          * 
1010          * This function save text in session, to be shown to the user at next page load
1011          * 
1012          * @param string $s - Text of notice
1013          */
1014         function info($s) {
1015                 $a = get_app();
1016                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
1017                 if($a->interactive)
1018                         $_SESSION['sysmsg_info'][] = $s;
1019         }
1020 }
1021
1022
1023 // wrapper around config to limit the text length of an incoming message
1024
1025 if(! function_exists('get_max_import_size')) {
1026         function get_max_import_size() {
1027                 global $a;
1028                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1029         }
1030 }
1031
1032
1033
1034 /**
1035  *
1036  * Function : profile_load
1037  * @parameter App    $a
1038  * @parameter string $nickname
1039  * @parameter int    $profile
1040  *
1041  * Summary: Loads a profile into the page sidebar.
1042  * The function requires a writeable copy of the main App structure, and the nickname
1043  * of a registered local account.
1044  *
1045  * If the viewer is an authenticated remote viewer, the profile displayed is the
1046  * one that has been configured for his/her viewing in the Contact manager.
1047  * Passing a non-zero profile ID can also allow a preview of a selected profile
1048  * by the owner.
1049  *
1050  * Profile information is placed in the App structure for later retrieval.
1051  * Honours the owner's chosen theme for display.
1052  *
1053  */
1054
1055 if(! function_exists('profile_load')) {
1056         function profile_load(&$a, $nickname, $profile = 0) {
1057
1058                 $user = q("select uid from user where nickname = '%s' limit 1",
1059                         dbesc($nickname)
1060                 );
1061                 
1062                 if(! ($user && count($user))) {
1063                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1064                         notice( t('Requested account is not available.') . EOL );
1065                         $a->error = 404;
1066                         return;
1067                 }
1068
1069                 if(remote_user() && count($_SESSION['remote'])) {
1070                         foreach($_SESSION['remote'] as $visitor) {
1071                                 if($visitor['uid'] == $user[0]['uid']) {
1072                                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1073                                                 intval($visitor['cid'])
1074                                         );
1075                                         if(count($r))
1076                                                 $profile = $r[0]['profile-id'];
1077                                         break;
1078                                 }
1079                         }
1080                 }
1081
1082                 $r = null;
1083                           
1084                 if($profile) {
1085                         $profile_int = intval($profile);
1086                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1087                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1088                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1089                                         dbesc($nickname),
1090                                         intval($profile_int)
1091                         );
1092                 }
1093                 if((! $r) && (!  count($r))) {
1094                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1095                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1096                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1097                                         dbesc($nickname)
1098                         );
1099                 }
1100
1101                 if(($r === false) || (! count($r))) {
1102                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1103                         notice( t('Requested profile is not available.') . EOL );
1104                         $a->error = 404;
1105                         return;
1106                 }
1107         
1108                 // fetch user tags if this isn't the default profile
1109
1110                 if(! $r[0]['is-default']) {
1111                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1112                                         intval($profile_uid)
1113                         );
1114                         if($x && count($x))
1115                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1116                 }
1117
1118                 $a->profile = $r[0];
1119
1120                 $a->profile['mobile-theme'] = get_pconfig($profile_uid, 'system', 'mobile_theme');
1121
1122
1123                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1124                 $_SESSION['theme'] = $a->profile['theme'];
1125                 $_SESSION['mobile-theme'] = $a->profile['mobile-theme'];
1126
1127                 /**
1128                  * load/reload current theme info
1129                  */
1130
1131                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1132                 if (file_exists($theme_info_file)){
1133                         require_once($theme_info_file);
1134                 }
1135
1136                 if(! (x($a->page,'aside')))
1137                         $a->page['aside'] = '';
1138
1139                 if(local_user() && local_user() == $a->profile['uid']) {
1140                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1141                                 '$editprofile' => t('Edit profile'),
1142                                 '$profid' => $a->profile['id']
1143                         ));
1144                 }
1145
1146                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1147
1148                 $a->page['aside'] .= profile_sidebar($a->profile, $block);
1149
1150                 /*if(! $block)
1151                  $a->page['aside'] .= contact_block();*/
1152
1153                 return;
1154         }
1155 }
1156
1157
1158 /**
1159  *
1160  * Function: profile_sidebar
1161  *
1162  * Formats a profile for display in the sidebar.
1163  * It is very difficult to templatise the HTML completely
1164  * because of all the conditional logic.
1165  *
1166  * @parameter: array $profile
1167  *
1168  * Returns HTML string stuitable for sidebar inclusion
1169  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1170  *
1171  */
1172
1173
1174 if(! function_exists('profile_sidebar')) {
1175         function profile_sidebar($profile, $block = 0) {
1176
1177                 $a = get_app();
1178
1179                 $o = '';
1180                 $location = false;
1181                 $address = false;
1182                 $pdesc = true;
1183
1184                 if((! is_array($profile)) && (! count($profile)))
1185                         return $o;
1186
1187                 $profile['picdate'] = urlencode($profile['picdate']);
1188
1189                 call_hooks('profile_sidebar_enter', $profile);
1190
1191         
1192                 // don't show connect link to yourself
1193                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1194
1195                 // don't show connect link to authenticated visitors either
1196
1197                 if(remote_user() && count($_SESSION['remote'])) {
1198                         foreach($_SESSION['remote'] as $visitor) {
1199                                 if($visitor['uid'] == $profile['uid']) {
1200                                         $connect = false;
1201                                         break;
1202                                 }
1203                         }
1204                 }
1205
1206                 if(get_my_url() && $profile['unkmail'])
1207                         $wallmessage = t('Message');
1208                 else
1209                         $wallmessage = false;
1210
1211
1212
1213                 // show edit profile to yourself
1214                 if ($profile['uid'] == local_user()) {
1215                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1216                 
1217                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1218                                         local_user());
1219                 
1220                         $profile['menu'] = array(
1221                                 'chg_photo' => t('Change profile photo'),
1222                                 'cr_new' => t('Create New Profile'),
1223                                 'entries' => array(),
1224                         );
1225
1226                         if(count($r)) {
1227
1228                                 foreach($r as $rr) {
1229                                         $profile['menu']['entries'][] = array(
1230                                                 'photo' => $rr['thumb'],
1231                                                 'id' => $rr['id'],
1232                                                 'alt' => t('Profile Image'),
1233                                                 'profile_name' => $rr['profile-name'],
1234                                                 'isdefault' => $rr['is-default'],
1235                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1236                                                 'edit_visibility' => t('Edit visibility'),
1237
1238                                         );
1239                                 }
1240
1241
1242                         }
1243
1244
1245                 }
1246
1247
1248
1249         
1250                 if((x($profile,'address') == 1)
1251                                 || (x($profile,'locality') == 1)
1252                                 || (x($profile,'region') == 1)
1253                                 || (x($profile,'postal-code') == 1)
1254                                 || (x($profile,'country-name') == 1))
1255                         $location = t('Location:');
1256
1257                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1258
1259
1260                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1261
1262                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1263
1264                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1265                         $location = $pdesc = $gender = $marital = $homepage = False;
1266                 }
1267
1268                 $firstname = ((strpos($profile['name'],' '))
1269                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1270                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1271
1272                 $diaspora = array(
1273                         'podloc' => $a->get_baseurl(),
1274                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1275                         'nickname' => $profile['nickname'],
1276                         'fullname' => $profile['name'],
1277                         'firstname' => $firstname,
1278                         'lastname' => $lastname,
1279                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1280                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1281                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1282                 );
1283
1284                 if (!$block){
1285                         $contact_block = contact_block();
1286                 }
1287
1288
1289                 $tpl = get_markup_template('profile_vcard.tpl');
1290
1291                 $o .= replace_macros($tpl, array(
1292                         '$profile' => $profile,
1293                         '$connect'  => $connect,
1294                         '$wallmessage' => $wallmessage,
1295                         '$location' => template_escape($location),
1296                         '$gender'   => $gender,
1297                         '$pdesc'        => $pdesc,
1298                         '$marital'  => $marital,
1299                         '$homepage' => $homepage,
1300                         '$diaspora' => $diaspora,
1301                         '$contact_block' => $contact_block,
1302                 ));
1303
1304
1305                 $arr = array('profile' => &$profile, 'entry' => &$o);
1306
1307                 call_hooks('profile_sidebar', $arr);
1308
1309                 return $o;
1310         }
1311 }
1312
1313
1314 if(! function_exists('get_birthdays')) {
1315         function get_birthdays() {
1316
1317                 $a = get_app();
1318                 $o = '';
1319
1320                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1321                         return $o;
1322
1323 //              $mobile_detect = new Mobile_Detect();
1324 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1325
1326 //              if($is_mobile)
1327 //                      return $o;
1328
1329                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1330                 $bd_short = t('F d');
1331
1332                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1333                                 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
1334                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1335                                 ORDER BY `start` ASC ",
1336                                 intval(local_user()),
1337                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1338                                 dbesc(datetime_convert('UTC','UTC','now'))
1339                 );
1340
1341                 if($r && count($r)) {
1342                         $total = 0;
1343                         $now = strtotime('now');
1344                         $cids = array();
1345
1346                         $istoday = false;
1347                         foreach($r as $rr) {
1348                                 if(strlen($rr['name']))
1349                                         $total ++;
1350                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1351                                         $istoday = true;
1352                         }
1353                         $classtoday = $istoday ? ' birthday-today ' : '';
1354                         if($total) {
1355                                 foreach($r as &$rr) {
1356                                         if(! strlen($rr['name']))
1357                                                 continue;
1358
1359                                         // avoid duplicates
1360
1361                                         if(in_array($rr['cid'],$cids))
1362                                                 continue;
1363                                         $cids[] = $rr['cid'];
1364
1365                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1366                                         $sparkle = '';
1367                                         $url = $rr['url'];
1368                                         if($rr['network'] === NETWORK_DFRN) {
1369                                                 $sparkle = " sparkle";
1370                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1371                                         }
1372         
1373                                         $rr['link'] = $url;
1374                                         $rr['title'] = $rr['name'];
1375                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1376                                         $rr['startime'] = Null;
1377                                         $rr['today'] = $today;
1378         
1379                                 }
1380                         }
1381                 }
1382                 $tpl = get_markup_template("birthdays_reminder.tpl");
1383                 return replace_macros($tpl, array(
1384                         '$baseurl' => $a->get_baseurl(),
1385                         '$classtoday' => $classtoday,
1386                         '$count' => $total,
1387                         '$event_reminders' => t('Birthday Reminders'),
1388                         '$event_title' => t('Birthdays this week:'),
1389                         '$events' => $r,
1390                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1391                         '$rbr' => '}'
1392
1393                 ));
1394         }
1395 }
1396
1397
1398 if(! function_exists('get_events')) {
1399         function get_events() {
1400
1401                 require_once('include/bbcode.php');
1402
1403                 $a = get_app();
1404
1405                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1406                         return $o;
1407
1408
1409 //              $mobile_detect = new Mobile_Detect();
1410 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1411
1412 //              if($is_mobile)
1413 //                      return $o;
1414
1415                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1416                 $bd_short = t('F d');
1417
1418                 $r = q("SELECT `event`.* FROM `event`
1419                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1420                                 ORDER BY `start` ASC ",
1421                                 intval(local_user()),
1422                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1423                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1424                 );
1425
1426                 if($r && count($r)) {
1427                         $now = strtotime('now');
1428                         $istoday = false;
1429                         foreach($r as $rr) {
1430                                 if(strlen($rr['name']))
1431                                         $total ++;
1432
1433                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1434                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1435                                         $istoday = true;
1436                         }
1437                         $classtoday = (($istoday) ? 'event-today' : '');
1438
1439
1440                         foreach($r as &$rr) {
1441                                 if($rr['adjust'])
1442                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1443                                 else
1444                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1445                                 $md .= "/#link-".$rr['id'];
1446
1447                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1448                                 if(! $title)
1449                                         $title = t('[No description]');
1450
1451                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1452                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1453                                 
1454                                 $rr['link'] = $md;
1455                                 $rr['title'] = $title;
1456                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1457                                 $rr['startime'] = $strt;
1458                                 $rr['today'] = $today;
1459                         }
1460                 }
1461
1462                 $tpl = get_markup_template("events_reminder.tpl");
1463                 return replace_macros($tpl, array(
1464                         '$baseurl' => $a->get_baseurl(),
1465                         '$classtoday' => $classtoday,
1466                         '$count' => count($r),
1467                         '$event_reminders' => t('Event Reminders'),
1468                         '$event_title' => t('Events this week:'),
1469                         '$events' => $r,
1470                 ));
1471         }
1472 }
1473
1474
1475 /**
1476  *
1477  * Wrap calls to proc_close(proc_open()) and call hook
1478  * so plugins can take part in process :)
1479  *
1480  * args:
1481  * $cmd program to run
1482  *  next args are passed as $cmd command line
1483  *
1484  * e.g.: proc_run("ls","-la","/tmp");
1485  *
1486  * $cmd and string args are surrounded with ""
1487  */
1488
1489 if(! function_exists('proc_run')) {
1490         function proc_run($cmd){
1491
1492                 $a = get_app();
1493
1494                 $args = func_get_args();
1495
1496                 $newargs = array();
1497                 if(! count($args))
1498                         return;
1499
1500                 // expand any arrays
1501
1502                 foreach($args as $arg) {
1503                         if(is_array($arg)) {
1504                                 foreach($arg as $n) {
1505                                         $newargs[] = $n;
1506                                 }
1507                         }
1508                         else
1509                                 $newargs[] = $arg;
1510                 }
1511
1512                 $args = $newargs;
1513                 
1514                 $arr = array('args' => $args, 'run_cmd' => true);
1515
1516                 call_hooks("proc_run", $arr);
1517                 if(! $arr['run_cmd'])
1518                         return;
1519
1520                 if(count($args) && $args[0] === 'php')
1521                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1522         
1523         // add baseurl to args. cli scripts can't construct it
1524         $args[] = $a->get_baseurl();
1525         
1526         for($x = 0; $x < count($args); $x ++)
1527                         $args[$x] = escapeshellarg($args[$x]);
1528
1529         
1530
1531                 $cmdline = implode($args," ");
1532                 if(get_config('system','proc_windows'))
1533                         proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
1534                 else
1535                         proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
1536         }
1537 }
1538
1539 if(! function_exists('current_theme')) {
1540         function current_theme(){
1541                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1542         
1543                 $a = get_app();
1544         
1545 //              $mobile_detect = new Mobile_Detect();
1546 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1547                 $is_mobile = $a->is_mobile || $a->is_tablet;
1548         
1549                 if($is_mobile) {
1550                         if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1551                                 $system_theme = '';
1552                                 $theme_name = '';
1553                         }
1554                         else {
1555                                 $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1556                                 $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1557
1558                                 if($theme_name === '---') {
1559                                         // user has selected to have the mobile theme be the same as the normal one
1560                                         $system_theme = '';
1561                                         $theme_name = '';
1562                                 }
1563                         }
1564                 }
1565                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1566                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1567                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1568                 }
1569
1570                 if($theme_name &&
1571                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1572                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1573                         return($theme_name);
1574         
1575                 foreach($app_base_themes as $t) {
1576                         if(file_exists('view/theme/' . $t . '/style.css')||
1577                                         file_exists('view/theme/' . $t . '/style.php'))
1578                                 return($t);
1579                 }
1580         
1581                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1582                 if(count($fallback))
1583                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1584         
1585         }
1586 }
1587
1588 /*
1589  * Return full URL to theme which is currently in effect.
1590 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1591 */
1592 if(! function_exists('current_theme_url')) {
1593         function current_theme_url() {
1594                 global $a;
1595                 $t = current_theme();
1596                 if (file_exists('view/theme/' . $t . '/style.php'))
1597                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1598                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1599         }
1600 }
1601
1602 if(! function_exists('feed_birthday')) {
1603         function feed_birthday($uid,$tz) {
1604
1605                 /**
1606                  *
1607                  * Determine the next birthday, but only if the birthday is published
1608                  * in the default profile. We _could_ also look for a private profile that the
1609                  * recipient can see, but somebody could get mad at us if they start getting
1610                  * public birthday greetings when they haven't made this info public.
1611                  *
1612                  * Assuming we are able to publish this info, we are then going to convert
1613                  * the start time from the owner's timezone to UTC.
1614                  *
1615                  * This will potentially solve the problem found with some social networks
1616                  * where birthdays are converted to the viewer's timezone and salutations from
1617                  * elsewhere in the world show up on the wrong day. We will convert it to the
1618                  * viewer's timezone also, but first we are going to convert it from the birthday
1619                  * person's timezone to GMT - so the viewer may find the birthday starting at
1620                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1621                  *
1622                  */
1623
1624         
1625                 $birthday = '';
1626
1627                 if(! strlen($tz))
1628                         $tz = 'UTC';
1629
1630                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1631                                 intval($uid)
1632                 );
1633
1634                 if($p && count($p)) {
1635                         $tmp_dob = substr($p[0]['dob'],5);
1636                         if(intval($tmp_dob)) {
1637                                 $y = datetime_convert($tz,$tz,'now','Y');
1638                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1639                                 $t_dob = strtotime($bd);
1640                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1641                                 if($t_dob < $now)
1642                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1643                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
1644                         }
1645                 }
1646
1647                 return $birthday;
1648         }
1649 }
1650
1651 if(! function_exists('is_site_admin')) {
1652         function is_site_admin() {
1653                 $a = get_app();
1654                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1655                         return true;
1656                 return false;
1657         }
1658 }
1659
1660
1661 if(! function_exists('load_contact_links')) {
1662         function load_contact_links($uid) {
1663
1664                 $a = get_app();
1665
1666                 $ret = array();
1667
1668                 if(! $uid || x($a->contacts,'empty'))
1669                         return;
1670
1671                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
1672                                 intval($uid)
1673                 );
1674                 if(count($r)) {
1675                         foreach($r as $rr){
1676                                 $url = normalise_link($rr['url']);
1677                                 $ret[$url] = $rr;
1678                         }
1679                 }
1680                 else
1681                         $ret['empty'] = true;
1682                 $a->contacts = $ret;
1683                 return;
1684         }
1685 }
1686
1687 if(! function_exists('profile_tabs')){
1688         function profile_tabs($a, $is_owner=False, $nickname=Null){
1689                 //echo "<pre>"; var_dump($a->user); killme();
1690         
1691                 if (is_null($nickname))
1692                         $nickname  = $a->user['nickname'];
1693                 
1694                 if(x($_GET,'tab'))
1695                         $tab = notags(trim($_GET['tab']));
1696         
1697                 $url = $a->get_baseurl() . '/profile/' . $nickname;
1698
1699                 $tabs = array(
1700                         array(
1701                                 'label'=>t('Status'),
1702                                 'url' => $url,
1703                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
1704                                 'title' => t('Status Messages and Posts'),
1705                                 'id' => 'status-tab',
1706                         ),
1707                         array(
1708                                 'label' => t('Profile'),
1709                                 'url'   => $url.'/?tab=profile',
1710                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
1711                                 'title' => t('Profile Details'),
1712                                 'id' => 'profile-tab',
1713                         ),
1714                         array(
1715                                 'label' => t('Photos'),
1716                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
1717                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
1718                                 'title' => t('Photo Albums'),
1719                                 'id' => 'photo-tab',
1720                         ),
1721                 );
1722         
1723                 if ($is_owner){
1724                         $tabs[] = array(
1725                                 'label' => t('Events'),
1726                                 'url'   => $a->get_baseurl() . '/events',
1727                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
1728                                 'title' => t('Events and Calendar'),
1729                                 'id' => 'events-tab',
1730                         );
1731                         $tabs[] = array(
1732                                 'label' => t('Personal Notes'),
1733                                 'url'   => $a->get_baseurl() . '/notes',
1734                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
1735                                 'title' => t('Only You Can See This'),
1736                                 'id' => 'notes-tab',
1737                         );
1738                 }
1739
1740
1741                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
1742                 call_hooks('profile_tabs', $arr);
1743         
1744                 $tpl = get_markup_template('common_tabs.tpl');
1745
1746                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
1747         }
1748 }
1749
1750 function get_my_url() {
1751         if(x($_SESSION,'my_url'))
1752                 return $_SESSION['my_url'];
1753         return false;
1754 }
1755
1756 function zrl_init(&$a) {
1757         $tmp_str = get_my_url();
1758         if(validate_url($tmp_str)) {
1759                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
1760                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
1761                 call_hooks('zrl_init',$arr);
1762         }
1763 }
1764
1765 function zrl($s,$force = false) {
1766         if(! strlen($s))
1767                 return $s;
1768         if((! strpos($s,'/profile/')) && (! $force))
1769                 return $s;
1770         if($force && substr($s,-1,1) !== '/')
1771                 $s = $s . '/';
1772         $achar = strpos($s,'?') ? '&' : '?';
1773         $mine = get_my_url();
1774         if($mine and ! link_compare($mine,$s))
1775                 return $s . $achar . 'zrl=' . urlencode($mine);
1776         return $s;
1777 }
1778
1779 /**
1780 * returns querystring as string from a mapped array
1781 *
1782 * @param params Array 
1783 * @return string
1784 */
1785 function build_querystring($params, $name=null) { 
1786     $ret = ""; 
1787     foreach($params as $key=>$val) {
1788         if(is_array($val)) { 
1789             if($name==null) {
1790                 $ret .= build_querystring($val, $key); 
1791             } else {
1792                 $ret .= build_querystring($val, $name."[$key]");    
1793             }
1794         } else {
1795             $val = urlencode($val);
1796             if($name!=null) {
1797                 $ret.=$name."[$key]"."=$val&"; 
1798             } else {
1799                 $ret.= "$key=$val&"; 
1800             }
1801         } 
1802     } 
1803     return $ret;    
1804 }
1805
1806 /**
1807 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
1808 *
1809 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
1810 */
1811 function curPageURL() {
1812         $pageURL = 'http';
1813         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
1814         $pageURL .= "://";
1815         if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
1816                 $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
1817         } else {
1818                 $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
1819         }
1820         return $pageURL;
1821 }
1822
1823 function random_digits($digits) {
1824         $rn = '';
1825         for($i = 0; $i < $digits; $i++) {
1826                 $rn .= rand(0,9);
1827         }
1828         return $rn;
1829 }