]> git.mxchange.org Git - friendica.git/blob - boot.php
Merge remote-tracking branch 'upstream/master'
[friendica.git] / boot.php
1 <?php
2
3 require_once('include/config.php');
4 require_once('include/network.php');
5 require_once('include/plugin.php');
6 require_once('include/text.php');
7 require_once('include/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 require_once('include/features.php');
13
14 define ( 'FRIENDICA_PLATFORM',     'Friendica');
15 define ( 'FRIENDICA_VERSION',      '3.2.1753' );
16 define ( 'DFRN_PROTOCOL_VERSION',  '2.23'    );
17 define ( 'DB_UPDATE_VERSION',      1173      );
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 define ( 'NETWORK_PUMPIO',           'pump');    // pump.io
143 define ( 'NETWORK_TWITTER',          'twit');    // Twitter
144 define ( 'NETWORK_DIASPORA2',        'dspc');    // Diaspora connector
145 define ( 'NETWORK_STATUSNET',        'stac');    // Statusnet connector
146 define ( 'NETWORK_APPNET',           'apdn');    // app.net
147
148 define ( 'NETWORK_PHANTOM',          'unkn');    // Place holder
149
150 /**
151  * These numbers are used in stored permissions
152  * and existing allocations MUST NEVER BE CHANGED
153  * OR RE-ASSIGNED! You may only add to them.
154  */
155
156 $netgroup_ids = array(
157         NETWORK_DFRN     => (-1),
158         NETWORK_ZOT      => (-2),
159         NETWORK_OSTATUS  => (-3),
160         NETWORK_FEED     => (-4),
161         NETWORK_DIASPORA => (-5),
162         NETWORK_MAIL     => (-6),
163         NETWORK_MAIL2    => (-7),
164         NETWORK_FACEBOOK => (-8),
165         NETWORK_LINKEDIN => (-9),
166         NETWORK_XMPP     => (-10),
167         NETWORK_MYSPACE  => (-11),
168         NETWORK_GPLUS    => (-12),
169         NETWORK_PUMPIO   => (-13),
170         NETWORK_TWITTER  => (-14),
171         NETWORK_DIASPORA2 => (-15),
172         NETWORK_STATUSNET => (-16),
173         NETWORK_APPNET => (-17),
174
175         NETWORK_PHANTOM  => (-127),
176 );
177
178
179 /**
180  * Maximum number of "people who like (or don't like) this"  that we will list by name
181  */
182
183 define ( 'MAX_LIKERS',    75);
184
185 /**
186  * Communication timeout
187  */
188
189 define ( 'ZCURL_TIMEOUT' , (-1));
190
191
192 /**
193  * email notification options
194  */
195
196 define ( 'NOTIFY_INTRO',    0x0001 );
197 define ( 'NOTIFY_CONFIRM',  0x0002 );
198 define ( 'NOTIFY_WALL',     0x0004 );
199 define ( 'NOTIFY_COMMENT',  0x0008 );
200 define ( 'NOTIFY_MAIL',     0x0010 );
201 define ( 'NOTIFY_SUGGEST',  0x0020 );
202 define ( 'NOTIFY_PROFILE',  0x0040 );
203 define ( 'NOTIFY_TAGSELF',  0x0080 );
204 define ( 'NOTIFY_TAGSHARE', 0x0100 );
205 define ( 'NOTIFY_POKE',     0x0200 );
206 define ( 'NOTIFY_SHARE',    0x0400 );
207
208 define ( 'NOTIFY_SYSTEM',   0x8000 );
209
210
211 /**
212  * Tag/term types
213  */
214
215 define ( 'TERM_UNKNOWN',   0 );
216 define ( 'TERM_HASHTAG',   1 );
217 define ( 'TERM_MENTION',   2 );
218 define ( 'TERM_CATEGORY',  3 );
219 define ( 'TERM_PCATEGORY', 4 );
220 define ( 'TERM_FILE',      5 );
221 define ( 'TERM_SAVEDSEARCH', 6 );
222 define ( 'TERM_CONVERSATION', 7 );
223
224 define ( 'TERM_OBJ_POST',  1 );
225 define ( 'TERM_OBJ_PHOTO', 2 );
226
227
228
229 /**
230  * various namespaces we may need to parse
231  */
232
233 define ( 'NAMESPACE_ZOT',             'http://purl.org/zot' );
234 define ( 'NAMESPACE_DFRN' ,           'http://purl.org/macgirvin/dfrn/1.0' );
235 define ( 'NAMESPACE_THREAD' ,         'http://purl.org/syndication/thread/1.0' );
236 define ( 'NAMESPACE_TOMB' ,           'http://purl.org/atompub/tombstones/1.0' );
237 define ( 'NAMESPACE_ACTIVITY',        'http://activitystrea.ms/spec/1.0/' );
238 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
239 define ( 'NAMESPACE_MEDIA',           'http://purl.org/syndication/atommedia' );
240 define ( 'NAMESPACE_SALMON_ME',       'http://salmon-protocol.org/ns/magic-env' );
241 define ( 'NAMESPACE_OSTATUSSUB',      'http://ostatus.org/schema/1.0/subscribe' );
242 define ( 'NAMESPACE_GEORSS',          'http://www.georss.org/georss' );
243 define ( 'NAMESPACE_POCO',            'http://portablecontacts.net/spec/1.0' );
244 define ( 'NAMESPACE_FEED',            'http://schemas.google.com/g/2010#updates-from' );
245 define ( 'NAMESPACE_OSTATUS',         'http://ostatus.org/schema/1.0' );
246 define ( 'NAMESPACE_STATUSNET',       'http://status.net/schema/api/1/' );
247 define ( 'NAMESPACE_ATOM1',           'http://www.w3.org/2005/Atom' );
248 /**
249  * activity stream defines
250  */
251
252 define ( 'ACTIVITY_LIKE',        NAMESPACE_ACTIVITY_SCHEMA . 'like' );
253 define ( 'ACTIVITY_DISLIKE',     NAMESPACE_DFRN            . '/dislike' );
254 define ( 'ACTIVITY_OBJ_HEART',   NAMESPACE_DFRN            . '/heart' );
255
256 define ( 'ACTIVITY_FRIEND',      NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
257 define ( 'ACTIVITY_REQ_FRIEND',  NAMESPACE_ACTIVITY_SCHEMA . 'request-friend' );
258 define ( 'ACTIVITY_UNFRIEND',    NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend' );
259 define ( 'ACTIVITY_FOLLOW',      NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
260 define ( 'ACTIVITY_UNFOLLOW',    NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
261 define ( 'ACTIVITY_JOIN',        NAMESPACE_ACTIVITY_SCHEMA . 'join' );
262
263 define ( 'ACTIVITY_POST',        NAMESPACE_ACTIVITY_SCHEMA . 'post' );
264 define ( 'ACTIVITY_UPDATE',      NAMESPACE_ACTIVITY_SCHEMA . 'update' );
265 define ( 'ACTIVITY_TAG',         NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
266 define ( 'ACTIVITY_FAVORITE',    NAMESPACE_ACTIVITY_SCHEMA . 'favorite' );
267
268 define ( 'ACTIVITY_POKE',        NAMESPACE_ZOT . '/activity/poke' );
269 define ( 'ACTIVITY_MOOD',        NAMESPACE_ZOT . '/activity/mood' );
270
271 define ( 'ACTIVITY_OBJ_BOOKMARK', NAMESPACE_ACTIVITY_SCHEMA . 'bookmark' );
272 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
273 define ( 'ACTIVITY_OBJ_NOTE',    NAMESPACE_ACTIVITY_SCHEMA . 'note' );
274 define ( 'ACTIVITY_OBJ_PERSON',  NAMESPACE_ACTIVITY_SCHEMA . 'person' );
275 define ( 'ACTIVITY_OBJ_IMAGE',   NAMESPACE_ACTIVITY_SCHEMA . 'image' );
276 define ( 'ACTIVITY_OBJ_PHOTO',   NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
277 define ( 'ACTIVITY_OBJ_VIDEO',   NAMESPACE_ACTIVITY_SCHEMA . 'video' );
278 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
279 define ( 'ACTIVITY_OBJ_ALBUM',   NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
280 define ( 'ACTIVITY_OBJ_EVENT',   NAMESPACE_ACTIVITY_SCHEMA . 'event' );
281 define ( 'ACTIVITY_OBJ_GROUP',   NAMESPACE_ACTIVITY_SCHEMA . 'group' );
282 define ( 'ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN            . '/tagterm' );
283 define ( 'ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN            . '/profile' );
284
285 /**
286  * item weight for query ordering
287  */
288
289 define ( 'GRAVITY_PARENT',       0);
290 define ( 'GRAVITY_LIKE',         3);
291 define ( 'GRAVITY_COMMENT',      6);
292
293 /**
294  *
295  * Reverse the effect of magic_quotes_gpc if it is enabled.
296  * Please disable magic_quotes_gpc so we don't have to do this.
297  * See http://php.net/manual/en/security.magicquotes.disabling.php
298  *
299  */
300
301 function startup() {
302
303         error_reporting(E_ERROR | E_WARNING | E_PARSE);
304
305         set_time_limit(0);
306
307         // This has to be quite large to deal with embedded private photos
308         ini_set('pcre.backtrack_limit', 500000);
309
310
311         if (get_magic_quotes_gpc()) {
312                 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
313                 while (list($key, $val) = each($process)) {
314                         foreach ($val as $k => $v) {
315                                 unset($process[$key][$k]);
316                                 if (is_array($v)) {
317                                         $process[$key][stripslashes($k)] = $v;
318                                         $process[] = &$process[$key][stripslashes($k)];
319                                 } else {
320                                         $process[$key][stripslashes($k)] = stripslashes($v);
321                                 }
322                         }
323                 }
324                 unset($process);
325         }
326
327 }
328
329 /**
330  *
331  * class: App
332  *
333  * Our main application structure for the life of this page
334  * Primarily deals with the URL that got us here
335  * and tries to make some sense of it, and
336  * stores our page contents and config storage
337  * and anything else that might need to be passed around
338  * before we spit the page out.
339  *
340  */
341
342 if(! class_exists('App')) {
343         class App {
344
345                 public  $module_loaded = false;
346                 public  $query_string;
347                 public  $config;
348                 public  $page;
349                 public  $profile;
350                 public  $user;
351                 public  $cid;
352                 public  $contact;
353                 public  $contacts;
354                 public  $page_contact;
355                 public  $content;
356                 public  $data = array();
357                 public  $error = false;
358                 public  $cmd;
359                 public  $argv;
360                 public  $argc;
361                 public  $module;
362                 public  $pager;
363                 public  $strings;
364                 public  $path;
365                 public  $hooks;
366                 public  $timezone;
367                 public  $interactive = true;
368                 public  $plugins;
369                 public  $apps = array();
370                 public  $identities;
371                 public  $is_mobile;
372                 public  $is_tablet;
373                 public  $performance = array();
374
375                 public $nav_sel;
376
377                 public $category;
378
379
380                 // Allow themes to control internal parameters
381                 // by changing App values in theme.php
382
383                 public  $sourcename = '';
384                 public  $videowidth = 425;
385                 public  $videoheight = 350;
386                 public  $force_max_items = 0;
387                 public  $theme_thread_allow = true;
388
389                 // An array for all theme-controllable parameters
390                 // Mostly unimplemented yet. Only options 'stylesheet' and
391                 // beyond are used.
392
393                 public  $theme = array(
394                         'sourcename' => '',
395                         'videowidth' => 425,
396                         'videoheight' => 350,
397                         'force_max_items' => 0,
398                         'thread_allow' => true,
399                         'stylesheet' => '',
400                         'template_engine' => 'smarty3',
401                 );
402
403                 // array of registered template engines ('name'=>'class name')
404                 public $template_engines = array();
405                 // array of instanced template engines ('name'=>'instance')
406                 public $template_engine_instance = array();
407
408                 // Used for reducing load to the ostatus completion
409                 public $last_ostatus_conversation_url;
410
411                 private $ldelim = array(
412                         'internal' => '',
413                         'smarty3' => '{{'
414                 );
415                 private $rdelim = array(
416                         'internal' => '',
417                         'smarty3' => '}}'
418                 );
419
420                 private $scheme;
421                 private $hostname;
422                 private $baseurl;
423                 private $db;
424
425                 private $curl_code;
426                 private $curl_content_type;
427                 private $curl_headers;
428
429                 private $cached_profile_image;
430                 private $cached_profile_picdate;
431
432                 function __construct() {
433
434                         global $default_timezone, $argv, $argc;
435
436                         $hostname = "";
437
438                         if (file_exists(".htpreconfig.php"))
439                                 @include(".htpreconfig.php");
440
441                         $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
442
443                         date_default_timezone_set($this->timezone);
444
445                         $this->performance["start"] = microtime(true);
446                         $this->performance["database"] = 0;
447                         $this->performance["network"] = 0;
448                         $this->performance["file"] = 0;
449                         $this->performance["rendering"] = 0;
450                         $this->performance["parser"] = 0;
451                         $this->performance["marktime"] = 0;
452                         $this->performance["markstart"] = microtime(true);
453
454                         $this->config = array();
455                         $this->page = array();
456                         $this->pager= array();
457
458                         $this->query_string = '';
459
460                         startup();
461
462                         set_include_path(
463                                         'include' . PATH_SEPARATOR
464                                         . 'library' . PATH_SEPARATOR
465                                         . 'library/phpsec' . PATH_SEPARATOR
466                                         . 'library/langdet' . PATH_SEPARATOR
467                                         . '.' );
468
469
470                         $this->scheme = 'http';
471                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
472                                 $this->scheme = 'https';
473                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
474                                 $this->scheme = 'https';
475
476                         if(x($_SERVER,'SERVER_NAME')) {
477                                 $this->hostname = $_SERVER['SERVER_NAME'];
478
479                                 // See bug 437 - this didn't work so disabling it
480                                 //if(stristr($this->hostname,'xn--')) {
481                                         // PHP or webserver may have converted idn to punycode, so
482                                         // convert punycode back to utf-8
483                                 //      require_once('library/simplepie/idn/idna_convert.class.php');
484                                 //      $x = new idna_convert();
485                                 //      $this->hostname = $x->decode($_SERVER['SERVER_NAME']);
486                                 //}
487
488                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
489                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
490                                 /**
491                                  * Figure out if we are running at the top of a domain
492                                  * or in a sub-directory and adjust accordingly
493                                  */
494
495                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
496                                 if(isset($path) && strlen($path) && ($path != $this->path))
497                                         $this->path = $path;
498                         }
499
500                         if ($hostname != "")
501                                 $this->hostname = $hostname;
502
503                         if (is_array($argv) && $argc>1 && substr(end($argv), 0, 4)=="http" ) {
504                                 $this->set_baseurl(array_pop($argv) );
505                                 $argc --;
506                         }
507
508                         set_include_path("include/$this->hostname" . PATH_SEPARATOR . get_include_path());
509
510                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
511                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
512                                 // removing trailing / - maybe a nginx problem
513                                 if (substr($this->query_string, 0, 1) == "/")
514                                         $this->query_string = substr($this->query_string, 1);
515                         }
516                         if(x($_GET,'q'))
517                                 $this->cmd = trim($_GET['q'],'/\\');
518
519                         // unix style "homedir"
520
521                         if(substr($this->cmd,0,1) === '~')
522                                 $this->cmd = 'profile/' . substr($this->cmd,1);
523
524                         // Diaspora style profile url
525
526                         if(substr($this->cmd,0,2) === 'u/')
527                                 $this->cmd = 'profile/' . substr($this->cmd,2);
528
529                         /**
530                          *
531                          * Break the URL path into C style argc/argv style arguments for our
532                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
533                          * will be 3 (integer) and $this->argv will contain:
534                          *   [0] => 'module'
535                          *   [1] => 'arg1'
536                          *   [2] => 'arg2'
537                          *
538                          *
539                          * There will always be one argument. If provided a naked domain
540                          * URL, $this->argv[0] is set to "home".
541                          *
542                          */
543
544                         $this->argv = explode('/',$this->cmd);
545                         $this->argc = count($this->argv);
546                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
547                                 $this->module = str_replace(".", "_", $this->argv[0]);
548                                 $this->module = str_replace("-", "_", $this->module);
549                         }
550                         else {
551                                 $this->argc = 1;
552                                 $this->argv = array('home');
553                                 $this->module = 'home';
554                         }
555
556                         /**
557                          * See if there is any page number information, and initialise
558                          * pagination
559                          */
560
561                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
562                         $this->pager['itemspage'] = 50;
563                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
564                         if($this->pager['start'] < 0)
565                                 $this->pager['start'] = 0;
566                         $this->pager['total'] = 0;
567
568                         /**
569                          * Detect mobile devices
570                          */
571
572                         $mobile_detect = new Mobile_Detect();
573                         $this->is_mobile = $mobile_detect->isMobile();
574                         $this->is_tablet = $mobile_detect->isTablet();
575
576                         /**
577                          * register template engines
578                          */
579                         $dc = get_declared_classes();
580                         foreach ($dc as $k) {
581                                 if (in_array("ITemplateEngine", class_implements($k))){
582                                         $this->register_template_engine($k);
583                                 }
584                         }
585
586                 }
587
588                 function get_basepath() {
589
590                         $basepath = get_config("system", "basepath");
591
592                         if ($basepath == "")
593                                 $basepath = $_SERVER["DOCUMENT_ROOT"];
594
595                         if ($basepath == "")
596                                 $basepath = $_SERVER["PWD"];
597
598                         return($basepath);
599                 }
600
601                 function get_baseurl($ssl = false) {
602
603                         $scheme = $this->scheme;
604
605                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
606                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
607                                         $scheme = 'https';
608
609                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
610                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
611
612                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
613                                         if($ssl)
614                                                 $scheme = 'https';
615                                         else
616                                                 $scheme = 'http';
617                                 }
618                         }
619
620                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
621                         return $this->baseurl;
622                 }
623
624                 function set_baseurl($url) {
625                         $parsed = @parse_url($url);
626
627                         $this->baseurl = $url;
628
629                         if($parsed) {
630                                 $this->scheme = $parsed['scheme'];
631
632                                 $hostname = $parsed['host'];
633                                 if(x($parsed,'port'))
634                                         $hostname .= ':' . $parsed['port'];
635                                 if(x($parsed,'path'))
636                                         $this->path = trim($parsed['path'],'\\/');
637
638                                 if (file_exists(".htpreconfig.php"))
639                                         @include(".htpreconfig.php");
640
641                                 $this->hostname = $hostname;
642                         }
643
644                 }
645
646                 function get_hostname() {
647                         return $this->hostname;
648                 }
649
650                 function set_hostname($h) {
651                         $this->hostname = $h;
652                 }
653
654                 function set_path($p) {
655                         $this->path = trim(trim($p),'/');
656                 }
657
658                 function get_path() {
659                         return $this->path;
660                 }
661
662                 function set_pager_total($n) {
663                         $this->pager['total'] = intval($n);
664                 }
665
666                 function set_pager_itemspage($n) {
667                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
668                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
669                 }
670
671                 function set_pager_page($n) {
672                         $this->pager['page'] = $n;
673                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
674                 }
675
676                 function init_pagehead() {
677                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
678                         if($interval < 10000)
679                                 $interval = 40000;
680
681                         $this->page['title'] = $this->config['sitename'];
682
683                         /* put the head template at the beginning of page['htmlhead']
684                          * since the code added by the modules frequently depends on it
685                          * being first
686                          */
687                         if(!isset($this->page['htmlhead']))
688                                 $this->page['htmlhead'] = '';
689
690                         // If we're using Smarty, then doing replace_macros() will replace
691                         // any unrecognized variables with a blank string. Since we delay
692                         // replacing $stylesheet until later, we need to replace it now
693                         // with another variable name
694                         if($this->theme['template_engine'] === 'smarty3')
695                                 $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
696                         else
697                                 $stylesheet = '$stylesheet';
698
699                         $shortcut_icon = get_config("system", "shortcut_icon");
700                         if ($shortcut_icon == "")
701                                 $shortcut_icon = $this->get_baseurl()."/images/friendica-32.png";
702
703                         $touch_icon = get_config("system", "touch_icon");
704                         if ($touch_icon == "")
705                                 $touch_icon = $this->get_baseurl()."/images/friendica-128.png";
706
707                         $tpl = get_markup_template('head.tpl');
708                         $this->page['htmlhead'] = replace_macros($tpl,array(
709                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
710                                 '$local_user' => local_user(),
711                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
712                                 '$delitem' => t('Delete this item?'),
713                                 '$comment' => t('Comment'),
714                                 '$showmore' => t('show more'),
715                                 '$showfewer' => t('show fewer'),
716                                 '$update_interval' => $interval,
717                                 '$shortcut_icon' => $shortcut_icon,
718                                 '$touch_icon' => $touch_icon,
719                                 '$stylesheet' => $stylesheet
720                         )) . $this->page['htmlhead'];
721                 }
722
723                 function init_page_end() {
724                         if(!isset($this->page['end']))
725                                 $this->page['end'] = '';
726                         $tpl = get_markup_template('end.tpl');
727                         $this->page['end'] = replace_macros($tpl,array(
728                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
729                         )) . $this->page['end'];
730                 }
731
732                 function set_curl_code($code) {
733                         $this->curl_code = $code;
734                 }
735
736                 function get_curl_code() {
737                         return $this->curl_code;
738                 }
739
740                 function set_curl_content_type($content_type) {
741                         $this->curl_content_type = $content_type;
742                 }
743
744                 function get_curl_content_type() {
745                         return $this->curl_content_type;
746                 }
747
748                 function set_curl_headers($headers) {
749                         $this->curl_headers = $headers;
750                 }
751
752                 function get_curl_headers() {
753                         return $this->curl_headers;
754                 }
755
756                 function get_cached_avatar_image($avatar_image){
757                         if($this->cached_profile_image[$avatar_image])
758                                 return $this->cached_profile_image[$avatar_image];
759
760                         $path_parts = explode("/",$avatar_image);
761                         $common_filename = $path_parts[count($path_parts)-1];
762
763                         if($this->cached_profile_picdate[$common_filename]){
764                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
765                         } else {
766                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like '%%/%s'",
767                                         $common_filename);
768                                 if(! count($r)){
769                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
770                                 } else {
771                                         $this->cached_profile_picdate[$common_filename] = "?rev=".urlencode($r[0]['picdate']);
772                                         $this->cached_profile_image[$avatar_image] = $avatar_image.$this->cached_profile_picdate[$common_filename];
773                                 }
774                         }
775                         return $this->cached_profile_image[$avatar_image];
776                 }
777
778
779                 /**
780                  * register template engine class
781                  * if $name is "", is used class static property $class::$name
782                  * @param string $class
783                  * @param string $name
784                  */
785                 function register_template_engine($class, $name = '') {
786                         if ($name===""){
787                                 $v = get_class_vars( $class );
788                                 if(x($v,"name")) $name = $v['name'];
789                         }
790                         if ($name===""){
791                                 echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
792                                 killme(); 
793                         }
794                         $this->template_engines[$name] = $class;
795                 }
796
797                 /**
798                  * return template engine instance. If $name is not defined,
799                  * return engine defined by theme, or default
800                  * 
801                  * @param strin $name Template engine name
802                  * @return object Template Engine instance
803                  */
804                 function template_engine($name = ''){
805                         if ($name!=="") {
806                                 $template_engine = $name;
807                         } else {
808                                 $template_engine = 'smarty3';
809                                 if (x($this->theme, 'template_engine')) {
810                                         $template_engine = $this->theme['template_engine'];
811                                 }
812                         }
813
814                         if (isset($this->template_engines[$template_engine])){
815                                 if(isset($this->template_engine_instance[$template_engine])){
816                                         return $this->template_engine_instance[$template_engine];
817                                 } else {
818                                         $class = $this->template_engines[$template_engine];
819                                         $obj = new $class;
820                                         $this->template_engine_instance[$template_engine] = $obj;
821                                         return $obj;
822                                 }
823                         }
824
825                         echo "template engine <tt>$template_engine</tt> is not registered!\n"; killme();
826                 }
827
828                 function get_template_engine() {
829                         return $this->theme['template_engine'];
830                 }
831
832                 function set_template_engine($engine = 'smarty3') {
833                         $this->theme['template_engine'] = $engine;
834                         /*
835                         $this->theme['template_engine'] = 'smarty3';
836
837                         switch($engine) {
838                                 case 'smarty3':
839                                         if(is_writable('view/smarty3/'))
840                                                 $this->theme['template_engine'] = 'smarty3';
841                                         break;
842                                 default:
843                                         break;
844                         }
845                         */
846                 }
847
848                 function get_template_ldelim($engine = 'smarty3') {
849                         return $this->ldelim[$engine];
850                 }
851
852                 function get_template_rdelim($engine = 'smarty3') {
853                         return $this->rdelim[$engine];
854                 }
855
856                 function save_timestamp($stamp, $value) {
857                         $duration = (float)(microtime(true)-$stamp);
858
859                         $this->performance[$value] += (float)$duration;
860                         $this->performance["marktime"] += (float)$duration;
861                 }
862
863                 function mark_timestamp($mark) {
864                         //$this->performance["markstart"] -= microtime(true) - $this->performance["marktime"];
865                         $this->performance["markstart"] = microtime(true) - $this->performance["markstart"] - $this->performance["marktime"];
866                 }
867
868         }
869 }
870
871 // retrieve the App structure
872 // useful in functions which require it but don't get it passed to them
873
874 if(! function_exists('get_app')) {
875         function get_app() {
876                 global $a;
877                 return $a;
878         }
879 };
880
881
882 // Multi-purpose function to check variable state.
883 // Usage: x($var) or $x($array,'key')
884 // returns false if variable/key is not set
885 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
886 // e.g. x('') or x(0) returns 0;
887
888 if(! function_exists('x')) {
889         function x($s,$k = NULL) {
890                 if($k != NULL) {
891                         if((is_array($s)) && (array_key_exists($k,$s))) {
892                                 if($s[$k])
893                                         return (int) 1;
894                                 return (int) 0;
895                 }
896                         return false;
897                 }
898                 else {
899                         if(isset($s)) {
900                                 if($s) {
901                                         return (int) 1;
902                                 }
903                                 return (int) 0;
904                         }
905                         return false;
906                 }
907         }
908 }
909
910 // called from db initialisation if db is dead.
911
912 if(! function_exists('system_unavailable')) {
913         function system_unavailable() {
914                 include('system_unavailable.php');
915                 system_down();
916                 killme();
917         }
918 }
919
920
921
922 function clean_urls() {
923         global $a;
924         //      if($a->config['system']['clean_urls'])
925         return true;
926         //      return false;
927 }
928
929 function z_path() {
930         global $a;
931         $base = $a->get_baseurl();
932         if(! clean_urls())
933                 $base .= '/?q=';
934         return $base;
935 }
936
937 function z_root() {
938         global $a;
939         return $a->get_baseurl();
940 }
941
942 function absurl($path) {
943         if(strpos($path,'/') === 0)
944                 return z_path() . $path;
945         return $path;
946 }
947
948 function is_ajax() {
949         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
950 }
951
952 function check_db() {
953
954         $build = get_config('system','build');
955         if(! x($build)) {
956                 set_config('system','build',DB_UPDATE_VERSION);
957                 $build = DB_UPDATE_VERSION;
958         }
959         if($build != DB_UPDATE_VERSION)
960                 proc_run('php', 'include/dbupdate.php');
961
962 }
963
964
965
966
967 // Sets the base url for use in cmdline programs which don't have
968 // $_SERVER variables
969
970 if(! function_exists('check_url')) {
971         function check_url(&$a) {
972
973                 $url = get_config('system','url');
974
975                 // if the url isn't set or the stored url is radically different
976                 // than the currently visited url, store the current value accordingly.
977                 // "Radically different" ignores common variations such as http vs https
978                 // and www.example.com vs example.com.
979                 // We will only change the url to an ip address if there is no existing setting
980
981                 if(! x($url))
982                         $url = set_config('system','url',$a->get_baseurl());
983                 if((! link_compare($url,$a->get_baseurl())) && (! preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/",$a->get_hostname)))
984                         $url = set_config('system','url',$a->get_baseurl());
985
986                 return;
987         }
988 }
989
990
991 // Automatic database updates
992
993 if(! function_exists('update_db')) {
994         function update_db(&$a) {
995
996                 $build = get_config('system','build');
997                 if(! x($build))
998                         $build = set_config('system','build',DB_UPDATE_VERSION);
999
1000                 if($build != DB_UPDATE_VERSION) {
1001                         $stored = intval($build);
1002                         $current = intval(DB_UPDATE_VERSION);
1003                         if(($stored < $current) && file_exists('update.php')) {
1004
1005                                 load_config('database');
1006
1007                                 // We're reporting a different version than what is currently installed.
1008                                 // Run any existing update scripts to bring the database up to current.
1009
1010                                 require_once('update.php');
1011
1012                                 // make sure that boot.php and update.php are the same release, we might be
1013                                 // updating right this very second and the correct version of the update.php
1014                                 // file may not be here yet. This can happen on a very busy site.
1015
1016                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
1017
1018                                         // Compare the current structure with the defined structure
1019
1020                                         $t = get_config('database','dbupdate_'.DB_UPDATE_VERSION);
1021                                         if($t !== false)
1022                                                 break;
1023                                         set_config('database','dbupdate_'.DB_UPDATE_VERSION, time());
1024
1025                                         require_once("include/dbstructure.php");
1026                                         update_structure(false, true);
1027
1028                                         set_config('database','dbupdate_'.DB_UPDATE_VERSION, 'success');
1029
1030                                         for($x = $stored; $x < $current; $x ++) {
1031                                                 if(function_exists('update_' . $x)) {
1032
1033                                                         // There could be a lot of processes running or about to run.
1034                                                         // We want exactly one process to run the update command.
1035                                                         // So store the fact that we're taking responsibility
1036                                                         // after first checking to see if somebody else already has.
1037
1038                                                         // If the update fails or times-out completely you may need to
1039                                                         // delete the config entry to try again.
1040
1041                                                         $t = get_config('database','update_' . $x);
1042                                                         if($t !== false)
1043                                                                 break;
1044                                                         set_config('database','update_' . $x, time());
1045
1046                                                         // call the specific update
1047
1048                                                         $func = 'update_' . $x;
1049                                                         $retval = $func();
1050                                                         if($retval) {
1051                                                                 //send the administrator an e-mail
1052                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
1053                                                                 $email_msg = replace_macros($email_tpl, array(
1054                                                                         '$sitename' => $a->config['sitename'],
1055                                                                         '$siteurl' =>  $a->get_baseurl(),
1056                                                                         '$update' => $x,
1057                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
1058                                                                 ));
1059                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
1060                                                                 require_once('include/email.php');
1061                                                                 $subject = email_header_encode($subject,'UTF-8');
1062                                                                 mail($a->config['admin_email'], $subject, $email_msg,
1063                                                                         'From: ' . 'Administrator' . '@' . $_SERVER['SERVER_NAME'] . "\n"
1064                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
1065                                                                         . 'Content-transfer-encoding: 8bit' );
1066                                                                 //try the logger
1067                                                                 logger('CRITICAL: Update Failed: '. $x);
1068                                                                 break;
1069                                                         } else {
1070                                                                 set_config('database','update_' . $x, 'success');
1071                                                                 set_config('system','build', $x + 1);
1072                                                         }
1073                                                 } else {
1074                                                         set_config('database','update_' . $x, 'success');
1075                                                         set_config('system','build', $x + 1);
1076                                                 }
1077                                         }
1078                                 }
1079                         }
1080                 }
1081
1082                 return;
1083         }
1084 }
1085
1086
1087 if(! function_exists('check_plugins')) {
1088         function check_plugins(&$a) {
1089
1090                 /**
1091                  *
1092                  * Synchronise plugins:
1093                  *
1094                  * $a->config['system']['addon'] contains a comma-separated list of names
1095                  * of plugins/addons which are used on this system.
1096                  * Go through the database list of already installed addons, and if we have
1097                  * an entry, but it isn't in the config list, call the uninstall procedure
1098                  * and mark it uninstalled in the database (for now we'll remove it).
1099                  * Then go through the config list and if we have a plugin that isn't installed,
1100                  * call the install procedure and add it to the database.
1101                  *
1102                  */
1103
1104                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
1105                 if(count($r))
1106                         $installed = $r;
1107                 else
1108                         $installed = array();
1109
1110                 $plugins = get_config('system','addon');
1111                 $plugins_arr = array();
1112
1113                 if($plugins)
1114                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
1115
1116                 $a->plugins = $plugins_arr;
1117
1118                 $installed_arr = array();
1119
1120                 if(count($installed)) {
1121                         foreach($installed as $i) {
1122                                 if(! in_array($i['name'],$plugins_arr)) {
1123                                         uninstall_plugin($i['name']);
1124                                 }
1125                                 else {
1126                                         $installed_arr[] = $i['name'];
1127                                 }
1128                         }
1129                 }
1130
1131                 if(count($plugins_arr)) {
1132                         foreach($plugins_arr as $p) {
1133                                 if(! in_array($p,$installed_arr)) {
1134                                         install_plugin($p);
1135                                 }
1136                         }
1137                 }
1138
1139
1140                 load_hooks();
1141
1142                 return;
1143         }
1144 }
1145
1146 function get_guid($size=16) {
1147         $exists = true; // assume by default that we don't have a unique guid
1148         do {
1149                 $prefix = "";
1150                 while (strlen($prefix) < ($size - 13))
1151                         $prefix .= mt_rand();
1152
1153                 $s = substr(uniqid($prefix), -$size);
1154
1155                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
1156                 if(! count($r))
1157                         $exists = false;
1158         } while($exists);
1159         q("insert into guid (guid) values ('%s') ", dbesc($s));
1160         return $s;
1161 }
1162
1163 /*function get_guid($size=16) {
1164         $exists = true; // assume by default that we don't have a unique guid
1165         do {
1166                 $s = random_string($size);
1167                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
1168                 if(! count($r))
1169                         $exists = false;
1170         } while($exists);
1171         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
1172         return $s;
1173 }*/
1174
1175
1176 // wrapper for adding a login box. If $register == true provide a registration
1177 // link. This will most always depend on the value of $a->config['register_policy'].
1178 // returns the complete html for inserting into the page
1179
1180 if(! function_exists('login')) {
1181         function login($register = false, $hiddens=false) {
1182                 $a = get_app();
1183                 $o = "";
1184                 $reg = false;
1185                 if ($register) {
1186                         $reg = array(
1187                                 'title' => t('Create a New Account'),
1188                                 'desc' => t('Register')
1189                         );
1190                 }
1191
1192                 $noid = get_config('system','no_openid');
1193         
1194                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
1195
1196                 if(local_user()) {
1197                         $tpl = get_markup_template("logout.tpl");
1198                 }
1199                 else {
1200                         $a->page['htmlhead'] .= replace_macros(get_markup_template("login_head.tpl"),array(
1201                                 '$baseurl'              => $a->get_baseurl(true)
1202                         ));
1203
1204                         $tpl = get_markup_template("login.tpl");
1205                         $_SESSION['return_url'] = $a->query_string;
1206                         $a->module = 'login';
1207                 }
1208
1209                 $o .= replace_macros($tpl, array(
1210
1211                         '$dest_url'     => $dest_url,
1212                         '$logout'       => t('Logout'),
1213                         '$login'        => t('Login'),
1214         
1215                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
1216                         '$lpassword'    => array('password', t('Password: '), '', ''),
1217                         '$lremember'    => array('remember', t('Remember me'), 0,  ''),
1218         
1219                         '$openid'               => !$noid,
1220                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
1221         
1222                         '$hiddens'      => $hiddens,
1223         
1224                         '$register'     => $reg,
1225         
1226                         '$lostpass'     => t('Forgot your password?'),
1227                         '$lostlink'     => t('Password Reset'),
1228
1229                         '$tostitle'     => t('Website Terms of Service'),
1230                         '$toslink'      => t('terms of service'),
1231
1232                         '$privacytitle' => t('Website Privacy Policy'),
1233                         '$privacylink'  => t('privacy policy'),
1234
1235                 ));
1236
1237                 call_hooks('login_hook',$o);
1238
1239                 return $o;
1240         }
1241 }
1242
1243 // Used to end the current process, after saving session state.
1244
1245 if(! function_exists('killme')) {
1246         function killme() {
1247                 session_write_close();
1248                 exit;
1249         }
1250 }
1251
1252 // redirect to another URL and terminate this process.
1253
1254 if(! function_exists('goaway')) {
1255         function goaway($s) {
1256                 header("Location: $s");
1257                 killme();
1258         }
1259 }
1260
1261
1262 // Returns the uid of locally logged in user or false.
1263
1264 if(! function_exists('local_user')) {
1265         function local_user() {
1266                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1267                         return intval($_SESSION['uid']);
1268                 return false;
1269         }
1270 }
1271
1272 // Returns contact id of authenticated site visitor or false
1273
1274 if(! function_exists('remote_user')) {
1275         function remote_user() {
1276                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1277                         return intval($_SESSION['visitor_id']);
1278                 return false;
1279         }
1280 }
1281
1282 // contents of $s are displayed prominently on the page the next time
1283 // a page is loaded. Usually used for errors or alerts.
1284
1285 if(! function_exists('notice')) {
1286         /**
1287          * Show an error message to user.
1288          * 
1289          * This function save text in session, to be shown to the user at next page load
1290          * 
1291          * @param string $s - Text of notice
1292          */
1293         function notice($s) {
1294                 $a = get_app();
1295                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
1296                 if($a->interactive)
1297                         $_SESSION['sysmsg'][] = $s;
1298         }
1299 }
1300 if(! function_exists('info')) {
1301         /**
1302          * Show an info message to user.
1303          * 
1304          * This function save text in session, to be shown to the user at next page load
1305          * 
1306          * @param string $s - Text of notice
1307          */
1308         function info($s) {
1309                 $a = get_app();
1310
1311                 if (local_user() AND get_pconfig(local_user(),'system','ignore_info'))
1312                         return;
1313
1314                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
1315                 if($a->interactive)
1316                         $_SESSION['sysmsg_info'][] = $s;
1317         }
1318 }
1319
1320
1321 // wrapper around config to limit the text length of an incoming message
1322
1323 if(! function_exists('get_max_import_size')) {
1324         function get_max_import_size() {
1325                 global $a;
1326                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1327         }
1328 }
1329
1330
1331
1332 /**
1333  *
1334  * Function : profile_load
1335  * @parameter App    $a
1336  * @parameter string $nickname
1337  * @parameter int    $profile
1338  *
1339  * Summary: Loads a profile into the page sidebar.
1340  * The function requires a writeable copy of the main App structure, and the nickname
1341  * of a registered local account.
1342  *
1343  * If the viewer is an authenticated remote viewer, the profile displayed is the
1344  * one that has been configured for his/her viewing in the Contact manager.
1345  * Passing a non-zero profile ID can also allow a preview of a selected profile
1346  * by the owner.
1347  *
1348  * Profile information is placed in the App structure for later retrieval.
1349  * Honours the owner's chosen theme for display.
1350  *
1351  * IMPORTANT: Should only be run in the _init() functions of a module. That ensures that
1352  * the theme is chosen before the _init() function of a theme is run, which will usually
1353  * load a lot of theme-specific content
1354  *
1355  */
1356
1357 if(! function_exists('profile_load')) {
1358         function profile_load(&$a, $nickname, $profile = 0, $profiledata = array()) {
1359
1360                 $user = q("select uid from user where nickname = '%s' limit 1",
1361                         dbesc($nickname)
1362                 );
1363
1364                 if(! ($user && count($user))) {
1365                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1366                         notice( t('Requested account is not available.') . EOL );
1367                         $a->error = 404;
1368                         return;
1369                 }
1370
1371                 if(remote_user() && count($_SESSION['remote'])) {
1372                         foreach($_SESSION['remote'] as $visitor) {
1373                                 if($visitor['uid'] == $user[0]['uid']) {
1374                                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1375                                                 intval($visitor['cid'])
1376                                         );
1377                                         if(count($r))
1378                                                 $profile = $r[0]['profile-id'];
1379                                         break;
1380                                 }
1381                         }
1382                 }
1383
1384                 $r = null;
1385
1386                 if($profile) {
1387                         $profile_int = intval($profile);
1388                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1389                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
1390                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1391                                         dbesc($nickname),
1392                                         intval($profile_int)
1393                         );
1394                 }
1395                 if((! $r) && (!  count($r))) {
1396                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1397                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
1398                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1399                                         dbesc($nickname)
1400                         );
1401                 }
1402
1403                 if(($r === false) || (! count($r))) {
1404                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1405                         notice( t('Requested profile is not available.') . EOL );
1406                         $a->error = 404;
1407                         return;
1408                 }
1409
1410                 // fetch user tags if this isn't the default profile
1411
1412                 if(! $r[0]['is-default']) {
1413                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1414                                         intval($r[0]['profile_uid'])
1415                         );
1416                         if($x && count($x))
1417                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1418                 }
1419
1420                 $a->profile = $r[0];
1421
1422                 $a->profile['mobile-theme'] = get_pconfig($a->profile['profile_uid'], 'system', 'mobile_theme');
1423                 $a->profile['network'] = NETWORK_DFRN;
1424
1425                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1426
1427                 if (!$profiledata)
1428                         $_SESSION['theme'] = $a->profile['theme'];
1429
1430                 $_SESSION['mobile-theme'] = $a->profile['mobile-theme'];
1431
1432                 /**
1433                  * load/reload current theme info
1434                  */
1435
1436                 $a->set_template_engine(); // reset the template engine to the default in case the user's theme doesn't specify one
1437
1438                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1439                 if (file_exists($theme_info_file)){
1440                         require_once($theme_info_file);
1441                 }
1442
1443                 if(! (x($a->page,'aside')))
1444                         $a->page['aside'] = '';
1445
1446                 if(local_user() && local_user() == $a->profile['uid'] && $profiledata) {
1447                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1448                                 '$editprofile' => t('Edit profile'),
1449                                 '$profid' => $a->profile['id']
1450                         ));
1451                 }
1452
1453                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1454
1455                 // To-Do:
1456                 // By now, the contact block isn't shown, when a different profile is given
1457                 // But: When this profile was on the same server, then we could display the contacts
1458                 if ($profiledata)
1459                         $a->page['aside'] .= profile_sidebar($profiledata, true);
1460                 else
1461                         $a->page['aside'] .= profile_sidebar($a->profile, $block);
1462
1463
1464                 /*if(! $block)
1465                  $a->page['aside'] .= contact_block();*/
1466
1467                 return;
1468         }
1469 }
1470
1471
1472 /**
1473  *
1474  * Function: profile_sidebar
1475  *
1476  * Formats a profile for display in the sidebar.
1477  * It is very difficult to templatise the HTML completely
1478  * because of all the conditional logic.
1479  *
1480  * @parameter: array $profile
1481  *
1482  * Returns HTML string stuitable for sidebar inclusion
1483  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1484  *
1485  */
1486
1487
1488 if(! function_exists('profile_sidebar')) {
1489         function profile_sidebar($profile, $block = 0) {
1490                 $a = get_app();
1491
1492                 $o = '';
1493                 $location = false;
1494                 $address = false;
1495                 $pdesc = true;
1496
1497                 if((! is_array($profile)) && (! count($profile)))
1498                         return $o;
1499
1500                 $profile['picdate'] = urlencode($profile['picdate']);
1501
1502                 if (($profile['network'] != "") AND ($profile['network'] != NETWORK_DFRN)) {
1503                         require_once('include/contact_selectors.php');
1504                         if ($profile['url'] != "")
1505                                 $profile['network_name'] = '<a href="'.$profile['url'].'">'.network_to_name($profile['network'])."</a>";
1506                         else
1507                                 $profile['network_name'] = network_to_name($profile['network']);
1508                 } else
1509                         $profile['network_name'] = "";
1510
1511                 call_hooks('profile_sidebar_enter', $profile);
1512
1513
1514                 // don't show connect link to yourself
1515                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1516
1517                 // don't show connect link to authenticated visitors either
1518                 if(remote_user() && count($_SESSION['remote'])) {
1519                         foreach($_SESSION['remote'] as $visitor) {
1520                                 if($visitor['uid'] == $profile['uid']) {
1521                                         $connect = false;
1522                                         break;
1523                                 }
1524                         }
1525                 }
1526
1527                 // Is the local user already connected to that user?
1528                 if ($connect AND local_user()) {
1529                         if (isset($profile["url"]))
1530                                 $profile_url = normalise_link($profile["url"]);
1531                         else
1532                                 $profile_url = normalise_link($a->get_baseurl()."/profile/".$profile["nickname"]);
1533
1534                         $r = q("SELECT * FROM `contact` WHERE NOT `pending` AND `uid` = %d AND `nurl` = '%s'",
1535                                 local_user(), $profile_url);
1536                         if (count($r))
1537                                 $connect = false;
1538                 }
1539
1540                 if ($connect AND ($profile['network'] != NETWORK_DFRN) AND !isset($profile['remoteconnect']))
1541                                 $connect = false;
1542
1543                 if (isset($profile['remoteconnect']))
1544                         $remoteconnect = $profile['remoteconnect'];
1545
1546                 if( get_my_url() && $profile['unkmail'] && ($profile['uid'] != local_user()) )
1547                         $wallmessage = t('Message');
1548                 else
1549                         $wallmessage = false;
1550
1551                 // show edit profile to yourself
1552                 if ($profile['uid'] == local_user() && feature_enabled(local_user(),'multi_profiles')) {
1553                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1554                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1555                                         local_user());
1556
1557                         $profile['menu'] = array(
1558                                 'chg_photo' => t('Change profile photo'),
1559                                 'cr_new' => t('Create New Profile'),
1560                                 'entries' => array(),
1561                         );
1562
1563                         if(count($r)) {
1564
1565                                 foreach($r as $rr) {
1566                                         $profile['menu']['entries'][] = array(
1567                                                 'photo' => $rr['thumb'],
1568                                                 'id' => $rr['id'],
1569                                                 'alt' => t('Profile Image'),
1570                                                 'profile_name' => $rr['profile-name'],
1571                                                 'isdefault' => $rr['is-default'],
1572                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1573                                                 'edit_visibility' => t('Edit visibility'),
1574
1575                                         );
1576                                 }
1577
1578
1579                         }
1580                 }
1581                 if ($profile['uid'] == local_user() && !feature_enabled(local_user(),'multi_profiles')) {
1582                         $profile['edit'] = array($a->get_baseurl(). '/profiles/'.$profile['id'], t('Edit profile'),"", t('Edit profile'));
1583                         $profile['menu'] = array(
1584                                 'chg_photo' => t('Change profile photo'),
1585                                 'cr_new' => null,
1586                                 'entries' => array(),
1587                         );
1588                 }
1589
1590                 if((x($profile,'address') == 1)
1591                                 || (x($profile,'locality') == 1)
1592                                 || (x($profile,'region') == 1)
1593                                 || (x($profile,'postal-code') == 1)
1594                                 || (x($profile,'country-name') == 1))
1595                         $location = t('Location:');
1596
1597                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1598
1599
1600                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1601
1602                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1603
1604                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1605                         $location = $pdesc = $gender = $marital = $homepage = False;
1606                 }
1607
1608                 $firstname = ((strpos($profile['name'],' '))
1609                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1610                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1611
1612                 $diaspora = array(
1613                         'podloc' => $a->get_baseurl(),
1614                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1615                         'nickname' => $profile['nickname'],
1616                         'fullname' => $profile['name'],
1617                         'firstname' => $firstname,
1618                         'lastname' => $lastname,
1619                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1620                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1621                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1622                 );
1623
1624                 if (!$block){
1625                         $contact_block = contact_block();
1626                 }
1627
1628
1629                 $p = array();
1630                 foreach($profile as $k => $v) {
1631                         $k = str_replace('-','_',$k);
1632                         $p[$k] = $v;
1633                 }
1634
1635                 if($a->theme['template_engine'] === 'internal')
1636                         $location = template_escape($location);
1637
1638
1639                 $tpl = get_markup_template('profile_vcard.tpl');
1640                 $o .= replace_macros($tpl, array(
1641                         '$profile' => $p,
1642                         '$connect'  => $connect,
1643                         '$remoteconnect'  => $remoteconnect,
1644                         '$wallmessage' => $wallmessage,
1645                         '$location' => $location,
1646                         '$gender'   => $gender,
1647                         '$pdesc'        => $pdesc,
1648                         '$marital'  => $marital,
1649                         '$homepage' => $homepage,
1650                         '$network' =>  t('Network:'),
1651                         '$diaspora' => $diaspora,
1652                         '$contact_block' => $contact_block,
1653                 ));
1654
1655
1656                 $arr = array('profile' => &$profile, 'entry' => &$o);
1657
1658                 call_hooks('profile_sidebar', $arr);
1659
1660                 return $o;
1661         }
1662 }
1663
1664
1665 if(! function_exists('get_birthdays')) {
1666         function get_birthdays() {
1667
1668                 $a = get_app();
1669                 $o = '';
1670
1671                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1672                         return $o;
1673
1674 //              $mobile_detect = new Mobile_Detect();
1675 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1676
1677 //              if($is_mobile)
1678 //                      return $o;
1679
1680                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1681                 $bd_short = t('F d');
1682
1683                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1684                                 INNER JOIN `contact` ON `contact`.`id` = `event`.`cid`
1685                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1686                                 ORDER BY `start` ASC ",
1687                                 intval(local_user()),
1688                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1689                                 dbesc(datetime_convert('UTC','UTC','now'))
1690                 );
1691
1692                 if($r && count($r)) {
1693                         $total = 0;
1694                         $now = strtotime('now');
1695                         $cids = array();
1696
1697                         $istoday = false;
1698                         foreach($r as $rr) {
1699                                 if(strlen($rr['name']))
1700                                         $total ++;
1701                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1702                                         $istoday = true;
1703                         }
1704                         $classtoday = $istoday ? ' birthday-today ' : '';
1705                         if($total) {
1706                                 foreach($r as &$rr) {
1707                                         if(! strlen($rr['name']))
1708                                                 continue;
1709
1710                                         // avoid duplicates
1711
1712                                         if(in_array($rr['cid'],$cids))
1713                                                 continue;
1714                                         $cids[] = $rr['cid'];
1715
1716                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1717                                         $sparkle = '';
1718                                         $url = $rr['url'];
1719                                         if($rr['network'] === NETWORK_DFRN) {
1720                                                 $sparkle = " sparkle";
1721                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1722                                         }
1723
1724                                         $rr['link'] = $url;
1725                                         $rr['title'] = $rr['name'];
1726                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1727                                         $rr['startime'] = Null;
1728                                         $rr['today'] = $today;
1729         
1730                                 }
1731                         }
1732                 }
1733                 $tpl = get_markup_template("birthdays_reminder.tpl");
1734                 return replace_macros($tpl, array(
1735                         '$baseurl' => $a->get_baseurl(),
1736                         '$classtoday' => $classtoday,
1737                         '$count' => $total,
1738                         '$event_reminders' => t('Birthday Reminders'),
1739                         '$event_title' => t('Birthdays this week:'),
1740                         '$events' => $r,
1741                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1742                         '$rbr' => '}'
1743
1744                 ));
1745         }
1746 }
1747
1748
1749 if(! function_exists('get_events')) {
1750         function get_events() {
1751
1752                 require_once('include/bbcode.php');
1753
1754                 $a = get_app();
1755
1756                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1757                         return $o;
1758
1759
1760 //              $mobile_detect = new Mobile_Detect();
1761 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1762
1763 //              if($is_mobile)
1764 //                      return $o;
1765
1766                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1767                 $bd_short = t('F d');
1768
1769                 $r = q("SELECT `event`.* FROM `event`
1770                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1771                                 ORDER BY `start` ASC ",
1772                                 intval(local_user()),
1773                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1774                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1775                 );
1776
1777                 if($r && count($r)) {
1778                         $now = strtotime('now');
1779                         $istoday = false;
1780                         foreach($r as $rr) {
1781                                 if(strlen($rr['name']))
1782                                         $total ++;
1783
1784                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1785                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1786                                         $istoday = true;
1787                         }
1788                         $classtoday = (($istoday) ? 'event-today' : '');
1789
1790
1791                         foreach($r as &$rr) {
1792                                 if($rr['adjust'])
1793                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1794                                 else
1795                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1796                                 $md .= "/#link-".$rr['id'];
1797
1798                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1799                                 if(! $title)
1800                                         $title = t('[No description]');
1801
1802                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1803                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1804                                 
1805                                 $rr['link'] = $md;
1806                                 $rr['title'] = $title;
1807                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1808                                 $rr['startime'] = $strt;
1809                                 $rr['today'] = $today;
1810                         }
1811                 }
1812
1813                 $tpl = get_markup_template("events_reminder.tpl");
1814                 return replace_macros($tpl, array(
1815                         '$baseurl' => $a->get_baseurl(),
1816                         '$classtoday' => $classtoday,
1817                         '$count' => count($r),
1818                         '$event_reminders' => t('Event Reminders'),
1819                         '$event_title' => t('Events this week:'),
1820                         '$events' => $r,
1821                 ));
1822         }
1823 }
1824
1825
1826 /**
1827  *
1828  * Wrap calls to proc_close(proc_open()) and call hook
1829  * so plugins can take part in process :)
1830  *
1831  * args:
1832  * $cmd program to run
1833  *  next args are passed as $cmd command line
1834  *
1835  * e.g.: proc_run("ls","-la","/tmp");
1836  *
1837  * $cmd and string args are surrounded with ""
1838  */
1839
1840 if(! function_exists('proc_run')) {
1841         function proc_run($cmd){
1842
1843                 $a = get_app();
1844
1845                 $args = func_get_args();
1846
1847                 $newargs = array();
1848                 if(! count($args))
1849                         return;
1850
1851                 // expand any arrays
1852
1853                 foreach($args as $arg) {
1854                         if(is_array($arg)) {
1855                                 foreach($arg as $n) {
1856                                         $newargs[] = $n;
1857                                 }
1858                         }
1859                         else
1860                                 $newargs[] = $arg;
1861                 }
1862
1863                 $args = $newargs;
1864                 
1865                 $arr = array('args' => $args, 'run_cmd' => true);
1866
1867                 call_hooks("proc_run", $arr);
1868                 if(! $arr['run_cmd'])
1869                         return;
1870
1871                 if(count($args) && $args[0] === 'php')
1872                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1873         
1874         // add baseurl to args. cli scripts can't construct it
1875         $args[] = $a->get_baseurl();
1876         
1877         for($x = 0; $x < count($args); $x ++)
1878                         $args[$x] = escapeshellarg($args[$x]);
1879
1880         
1881
1882                 $cmdline = implode($args," ");
1883                 if(get_config('system','proc_windows'))
1884                         proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
1885                 else
1886                         proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
1887         }
1888 }
1889
1890 if(! function_exists('current_theme')) {
1891         function current_theme(){
1892                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1893         
1894                 $a = get_app();
1895         
1896 //              $mobile_detect = new Mobile_Detect();
1897 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1898                 $is_mobile = $a->is_mobile || $a->is_tablet;
1899
1900                 if($is_mobile) {
1901                         if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1902                                 $system_theme = '';
1903                                 $theme_name = '';
1904                         }
1905                         else {
1906                                 $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1907                                 $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1908
1909                                 if($theme_name === '---') {
1910                                         // user has selected to have the mobile theme be the same as the normal one
1911                                         $system_theme = '';
1912                                         $theme_name = '';
1913                                 }
1914                         }
1915                 }
1916                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1917                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1918                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1919                 }
1920
1921                 if($theme_name &&
1922                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1923                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1924                         return($theme_name);
1925         
1926                 foreach($app_base_themes as $t) {
1927                         if(file_exists('view/theme/' . $t . '/style.css')||
1928                                         file_exists('view/theme/' . $t . '/style.php'))
1929                                 return($t);
1930                 }
1931         
1932                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1933                 if(count($fallback))
1934                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1935         
1936         }
1937 }
1938
1939 /*
1940  * Return full URL to theme which is currently in effect.
1941 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1942 */
1943 if(! function_exists('current_theme_url')) {
1944         function current_theme_url() {
1945                 global $a;
1946                 $t = current_theme();
1947                 if (file_exists('view/theme/' . $t . '/style.php'))
1948                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1949                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1950         }
1951 }
1952
1953 if(! function_exists('feed_birthday')) {
1954         function feed_birthday($uid,$tz) {
1955
1956                 /**
1957                  *
1958                  * Determine the next birthday, but only if the birthday is published
1959                  * in the default profile. We _could_ also look for a private profile that the
1960                  * recipient can see, but somebody could get mad at us if they start getting
1961                  * public birthday greetings when they haven't made this info public.
1962                  *
1963                  * Assuming we are able to publish this info, we are then going to convert
1964                  * the start time from the owner's timezone to UTC.
1965                  *
1966                  * This will potentially solve the problem found with some social networks
1967                  * where birthdays are converted to the viewer's timezone and salutations from
1968                  * elsewhere in the world show up on the wrong day. We will convert it to the
1969                  * viewer's timezone also, but first we are going to convert it from the birthday
1970                  * person's timezone to GMT - so the viewer may find the birthday starting at
1971                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1972                  *
1973                  */
1974
1975         
1976                 $birthday = '';
1977
1978                 if(! strlen($tz))
1979                         $tz = 'UTC';
1980
1981                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1982                                 intval($uid)
1983                 );
1984
1985                 if($p && count($p)) {
1986                         $tmp_dob = substr($p[0]['dob'],5);
1987                         if(intval($tmp_dob)) {
1988                                 $y = datetime_convert($tz,$tz,'now','Y');
1989                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1990                                 $t_dob = strtotime($bd);
1991                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1992                                 if($t_dob < $now)
1993                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1994                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
1995                         }
1996                 }
1997
1998                 return $birthday;
1999         }
2000 }
2001
2002 if(! function_exists('is_site_admin')) {
2003         function is_site_admin() {
2004                 $a = get_app();
2005
2006                 $adminlist = explode(",", str_replace(" ", "", $a->config['admin_email']));
2007
2008                 //if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
2009                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && in_array($a->user['email'], $adminlist))
2010                         return true;
2011                 return false;
2012         }
2013 }
2014
2015
2016 if(! function_exists('load_contact_links')) {
2017         function load_contact_links($uid) {
2018
2019                 $a = get_app();
2020
2021                 $ret = array();
2022
2023                 if(! $uid || x($a->contacts,'empty'))
2024                         return;
2025
2026                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
2027                                 intval($uid)
2028                 );
2029                 if(count($r)) {
2030                         foreach($r as $rr){
2031                                 $url = normalise_link($rr['url']);
2032                                 $ret[$url] = $rr;
2033                         }
2034                 }
2035                 else
2036                         $ret['empty'] = true;
2037                 $a->contacts = $ret;
2038                 return;
2039         }
2040 }
2041
2042 if(! function_exists('profile_tabs')){
2043         function profile_tabs($a, $is_owner=False, $nickname=Null){
2044                 //echo "<pre>"; var_dump($a->user); killme();
2045         
2046                 if (is_null($nickname))
2047                         $nickname  = $a->user['nickname'];
2048                 
2049                 if(x($_GET,'tab'))
2050                         $tab = notags(trim($_GET['tab']));
2051         
2052                 $url = $a->get_baseurl() . '/profile/' . $nickname;
2053
2054                 $tabs = array(
2055                         array(
2056                                 'label'=>t('Status'),
2057                                 'url' => $url,
2058                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
2059                                 'title' => t('Status Messages and Posts'),
2060                                 'id' => 'status-tab',
2061                         ),
2062                         array(
2063                                 'label' => t('Profile'),
2064                                 'url'   => $url.'/?tab=profile',
2065                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
2066                                 'title' => t('Profile Details'),
2067                                 'id' => 'profile-tab',
2068                         ),
2069                         array(
2070                                 'label' => t('Photos'),
2071                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
2072                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
2073                                 'title' => t('Photo Albums'),
2074                                 'id' => 'photo-tab',
2075                         ),
2076                         array(
2077                                 'label' => t('Videos'),
2078                                 'url'   => $a->get_baseurl() . '/videos/' . $nickname,
2079                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='videos')?'active':''),
2080                                 'title' => t('Videos'),
2081                                 'id' => 'video-tab',
2082                         ),
2083                 );
2084         
2085                 if ($is_owner){
2086                         $tabs[] = array(
2087                                 'label' => t('Events'),
2088                                 'url'   => $a->get_baseurl() . '/events',
2089                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
2090                                 'title' => t('Events and Calendar'),
2091                                 'id' => 'events-tab',
2092                         );
2093                         $tabs[] = array(
2094                                 'label' => t('Personal Notes'),
2095                                 'url'   => $a->get_baseurl() . '/notes',
2096                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
2097                                 'title' => t('Only You Can See This'),
2098                                 'id' => 'notes-tab',
2099                         );
2100                 }
2101
2102
2103                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
2104                 call_hooks('profile_tabs', $arr);
2105         
2106                 $tpl = get_markup_template('common_tabs.tpl');
2107
2108                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
2109         }
2110 }
2111
2112 function get_my_url() {
2113         if(x($_SESSION,'my_url'))
2114                 return $_SESSION['my_url'];
2115         return false;
2116 }
2117
2118 function zrl_init(&$a) {
2119         $tmp_str = get_my_url();
2120         if(validate_url($tmp_str)) {
2121                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
2122                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
2123                 call_hooks('zrl_init',$arr);
2124         }
2125 }
2126
2127 function zrl($s,$force = false) {
2128         if(! strlen($s))
2129                 return $s;
2130         if((! strpos($s,'/profile/')) && (! $force))
2131                 return $s;
2132         if($force && substr($s,-1,1) !== '/')
2133                 $s = $s . '/';
2134         $achar = strpos($s,'?') ? '&' : '?';
2135         $mine = get_my_url();
2136         if($mine and ! link_compare($mine,$s))
2137                 return $s . $achar . 'zrl=' . urlencode($mine);
2138         return $s;
2139 }
2140
2141 /**
2142 * returns querystring as string from a mapped array
2143 *
2144 * @param params Array 
2145 * @return string
2146 */
2147 function build_querystring($params, $name=null) { 
2148     $ret = ""; 
2149     foreach($params as $key=>$val) {
2150         if(is_array($val)) { 
2151             if($name==null) {
2152                 $ret .= build_querystring($val, $key); 
2153             } else {
2154                 $ret .= build_querystring($val, $name."[$key]");    
2155             }
2156         } else {
2157             $val = urlencode($val);
2158             if($name!=null) {
2159                 $ret.=$name."[$key]"."=$val&"; 
2160             } else {
2161                 $ret.= "$key=$val&"; 
2162             }
2163         } 
2164     } 
2165     return $ret;    
2166 }
2167
2168 function explode_querystring($query) {
2169         $arg_st = strpos($query, '?');
2170         if($arg_st !== false) {
2171                 $base = substr($query, 0, $arg_st);
2172                 $arg_st += 1;
2173         }
2174         else {
2175                 $base = '';
2176                 $arg_st = 0;
2177         }
2178
2179         $args = explode('&', substr($query, $arg_st));
2180         foreach($args as $k=>$arg) {
2181                 if($arg === '')
2182                         unset($args[$k]);
2183         }
2184         $args = array_values($args);
2185
2186         if(!$base) {
2187                 $base = $args[0];
2188                 unset($args[0]);
2189                 $args = array_values($args);
2190         }
2191
2192         return array(
2193                 'base' => $base,
2194                 'args' => $args,
2195         );
2196 }
2197
2198 /**
2199 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
2200 *
2201 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
2202 */
2203 function curPageURL() {
2204         $pageURL = 'http';
2205         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
2206         $pageURL .= "://";
2207         if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
2208                 $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
2209         } else {
2210                 $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
2211         }
2212         return $pageURL;
2213 }
2214
2215 function random_digits($digits) {
2216         $rn = '';
2217         for($i = 0; $i < $digits; $i++) {
2218                 $rn .= rand(0,9);
2219         }
2220         return $rn;
2221 }
2222
2223 function get_cachefile($file, $writemode = true) {
2224         $cache = get_itemcachepath();
2225
2226         if ((! $cache) || (! is_dir($cache)))
2227                 return("");
2228
2229         $subfolder = $cache."/".substr($file, 0, 2);
2230
2231         $cachepath = $subfolder."/".$file;
2232
2233         if ($writemode) {
2234                 if (!is_dir($subfolder)) {
2235                         mkdir($subfolder);
2236                         chmod($subfolder, 0777);
2237                 }
2238         }
2239
2240         return($cachepath);
2241 }
2242
2243 function clear_cache($basepath = "", $path = "") {
2244         if ($path == "") {
2245                 $basepath = get_itemcachepath();
2246                 $path = $basepath;
2247         }
2248
2249         if (($path == "") OR (!is_dir($path)))
2250                 return;
2251
2252         if (substr(realpath($path), 0, strlen($basepath)) != $basepath)
2253                 return;
2254
2255         $cachetime = (int)get_config('system','itemcache_duration');
2256         if ($cachetime == 0)
2257                 $cachetime = 86400;
2258
2259         if (is_writable($path)){
2260         if ($dh = opendir($path)) {
2261                 while (($file = readdir($dh)) !== false) {
2262                         $fullpath = $path."/".$file;
2263                         if ((filetype($fullpath) == "dir") and ($file != ".") and ($file != ".."))
2264                                 clear_cache($basepath, $fullpath);
2265                         if ((filetype($fullpath) == "file") and (filectime($fullpath) < (time() - $cachetime)))
2266                                 unlink($fullpath);
2267                 }
2268                 closedir($dh);
2269         }
2270         }
2271 }
2272
2273 function get_itemcachepath() {
2274         // Checking, if the cache is deactivated
2275         $cachetime = (int)get_config('system','itemcache_duration');
2276         if ($cachetime < 0)
2277                 return "";
2278
2279         $itemcache = get_config('system','itemcache');
2280         if (($itemcache != "") AND is_dir($itemcache) AND is_writable($itemcache))
2281                 return($itemcache);
2282
2283         $temppath = get_temppath();
2284
2285         if ($temppath != "") {
2286                 $itemcache = $temppath."/itemcache";
2287                 mkdir($itemcache);
2288
2289                 if (is_dir($itemcache) AND is_writable($itemcache)) {
2290                         set_config("system", "itemcache", $itemcache);
2291                         return($itemcache);
2292                 }
2293         }
2294         return "";
2295 }
2296
2297 function get_lockpath() {
2298         $lockpath = get_config('system','lockpath');
2299         if (($lockpath != "") AND is_dir($lockpath) AND is_writable($lockpath))
2300                 return($lockpath);
2301
2302         $temppath = get_temppath();
2303
2304         if ($temppath != "") {
2305                 $lockpath = $temppath."/lock";
2306                 mkdir($lockpath);
2307
2308                 if (is_dir($lockpath) AND is_writable($lockpath)) {
2309                         set_config("system", "lockpath", $lockpath);
2310                         return($lockpath);
2311                 }
2312         }
2313         return "";
2314 }
2315
2316 function get_temppath() {
2317         $temppath = get_config("system","temppath");
2318         if (($temppath != "") AND is_dir($temppath) AND is_writable($temppath))
2319                 return($temppath);
2320
2321         $temppath = sys_get_temp_dir();
2322         if (($temppath != "") AND is_dir($temppath) AND is_writable($temppath)) {
2323                 set_config("system", "temppath", $temppath);
2324                 return($temppath);
2325         }
2326
2327         return("");
2328 }
2329
2330 function set_template_engine(&$a, $engine = 'internal') {
2331 // This function is no longer necessary, but keep it as a wrapper to the class method
2332 // to avoid breaking themes again unnecessarily
2333
2334         $a->set_template_engine($engine);
2335 }
2336
2337 if(!function_exists('exif_imagetype')) {
2338         function exif_imagetype($file) {
2339                 $size = getimagesize($file);
2340                 return($size[2]);
2341         }
2342 }