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'],0,9) === "pagename=") {
 511                                 $this->query_string = substr($_SERVER['QUERY_STRING'],9);
 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                         } elseif((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
 516                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
 517                                 // removing trailing / - maybe a nginx problem
 518                                 if (substr($this->query_string, 0, 1) == "/")
 519                                         $this->query_string = substr($this->query_string, 1);
 520                         }
 521                         if (x($_GET,'pagename'))
 522                                 $this->cmd = trim($_GET['pagename'],'/\\');
 523                         elseif (x($_GET,'q'))
 524                                 $this->cmd = trim($_GET['q'],'/\\');
 525
 526                         // unix style "homedir"
 527
 528                         if(substr($this->cmd,0,1) === '~')
 529                                 $this->cmd = 'profile/' . substr($this->cmd,1);
 530
 531                         // Diaspora style profile url
 532
 533                         if(substr($this->cmd,0,2) === 'u/')
 534                                 $this->cmd = 'profile/' . substr($this->cmd,2);
 535
 536                         /**
 537                          *
 538                          * Break the URL path into C style argc/argv style arguments for our
 539                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
 540                          * will be 3 (integer) and $this->argv will contain:
 541                          *   [0] => 'module'
 542                          *   [1] => 'arg1'
 543                          *   [2] => 'arg2'
 544                          *
 545                          *
 546                          * There will always be one argument. If provided a naked domain
 547                          * URL, $this->argv[0] is set to "home".
 548                          *
 549                          */
 550
 551                         $this->argv = explode('/',$this->cmd);
 552                         $this->argc = count($this->argv);
 553                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
 554                                 $this->module = str_replace(".", "_", $this->argv[0]);
 555                                 $this->module = str_replace("-", "_", $this->module);
 556                         }
 557                         else {
 558                                 $this->argc = 1;
 559                                 $this->argv = array('home');
 560                                 $this->module = 'home';
 561                         }
 562
 563                         /**
 564                          * See if there is any page number information, and initialise
 565                          * pagination
 566                          */
 567
 568                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
 569                         $this->pager['itemspage'] = 50;
 570                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 571                         if($this->pager['start'] < 0)
 572                                 $this->pager['start'] = 0;
 573                         $this->pager['total'] = 0;
 574
 575                         /**
 576                          * Detect mobile devices
 577                          */
 578
 579                         $mobile_detect = new Mobile_Detect();
 580                         $this->is_mobile = $mobile_detect->isMobile();
 581                         $this->is_tablet = $mobile_detect->isTablet();
 582
 583                         /**
 584                          * register template engines
 585                          */
 586                         $dc = get_declared_classes();
 587                         foreach ($dc as $k) {
 588                                 if (in_array("ITemplateEngine", class_implements($k))){
 589                                         $this->register_template_engine($k);
 590                                 }
 591                         }
 592
 593                 }
 594
 595                 function get_basepath() {
 596
 597                         $basepath = get_config("system", "basepath");
 598
 599                         if ($basepath == "")
 600                                 $basepath = $_SERVER["DOCUMENT_ROOT"];
 601
 602                         if ($basepath == "")
 603                                 $basepath = $_SERVER["PWD"];
 604
 605                         return($basepath);
 606                 }
 607
 608                 function get_baseurl($ssl = false) {
 609
 610                         $scheme = $this->scheme;
 611
 612                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
 613                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
 614                                         $scheme = 'https';
 615
 616                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
 617                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
 618
 619                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
 620                                         if($ssl)
 621                                                 $scheme = 'https';
 622                                         else
 623                                                 $scheme = 'http';
 624                                 }
 625                         }
 626
 627                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
 628                         return $this->baseurl;
 629                 }
 630
 631                 function set_baseurl($url) {
 632                         $parsed = @parse_url($url);
 633
 634                         $this->baseurl = $url;
 635
 636                         if($parsed) {
 637                                 $this->scheme = $parsed['scheme'];
 638
 639                                 $hostname = $parsed['host'];
 640                                 if(x($parsed,'port'))
 641                                         $hostname .= ':' . $parsed['port'];
 642                                 if(x($parsed,'path'))
 643                                         $this->path = trim($parsed['path'],'\\/');
 644
 645                                 if (file_exists(".htpreconfig.php"))
 646                                         @include(".htpreconfig.php");
 647
 648                                 $this->hostname = $hostname;
 649                         }
 650
 651                 }
 652
 653                 function get_hostname() {
 654                         return $this->hostname;
 655                 }
 656
 657                 function set_hostname($h) {
 658                         $this->hostname = $h;
 659                 }
 660
 661                 function set_path($p) {
 662                         $this->path = trim(trim($p),'/');
 663                 }
 664
 665                 function get_path() {
 666                         return $this->path;
 667                 }
 668
 669                 function set_pager_total($n) {
 670                         $this->pager['total'] = intval($n);
 671                 }
 672
 673                 function set_pager_itemspage($n) {
 674                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
 675                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 676                 }
 677
 678                 function set_pager_page($n) {
 679                         $this->pager['page'] = $n;
 680                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 681                 }
 682
 683                 function init_pagehead() {
 684                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
 685                         if($interval < 10000)
 686                                 $interval = 40000;
 687
 688                         $this->page['title'] = $this->config['sitename'];
 689
 690                         /* put the head template at the beginning of page['htmlhead']
 691                          * since the code added by the modules frequently depends on it
 692                          * being first
 693                          */
 694                         if(!isset($this->page['htmlhead']))
 695                                 $this->page['htmlhead'] = '';
 696
 697                         // If we're using Smarty, then doing replace_macros() will replace
 698                         // any unrecognized variables with a blank string. Since we delay
 699                         // replacing $stylesheet until later, we need to replace it now
 700                         // with another variable name
 701                         if($this->theme['template_engine'] === 'smarty3')
 702                                 $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
 703                         else
 704                                 $stylesheet = '$stylesheet';
 705
 706                         $shortcut_icon = get_config("system", "shortcut_icon");
 707                         if ($shortcut_icon == "")
 708                                 $shortcut_icon = $this->get_baseurl()."/images/friendica-32.png";
 709
 710                         $touch_icon = get_config("system", "touch_icon");
 711                         if ($touch_icon == "")
 712                                 $touch_icon = $this->get_baseurl()."/images/friendica-128.png";
 713
 714                         $tpl = get_markup_template('head.tpl');
 715                         $this->page['htmlhead'] = replace_macros($tpl,array(
 716                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
 717                                 '$local_user' => local_user(),
 718                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
 719                                 '$delitem' => t('Delete this item?'),
 720                                 '$comment' => t('Comment'),
 721                                 '$showmore' => t('show more'),
 722                                 '$showfewer' => t('show fewer'),
 723                                 '$update_interval' => $interval,
 724                                 '$shortcut_icon' => $shortcut_icon,
 725                                 '$touch_icon' => $touch_icon,
 726                                 '$stylesheet' => $stylesheet
 727                         )) . $this->page['htmlhead'];
 728                 }
 729
 730                 function init_page_end() {
 731                         if(!isset($this->page['end']))
 732                                 $this->page['end'] = '';
 733                         $tpl = get_markup_template('end.tpl');
 734                         $this->page['end'] = replace_macros($tpl,array(
 735                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
 736                         )) . $this->page['end'];
 737                 }
 738
 739                 function set_curl_code($code) {
 740                         $this->curl_code = $code;
 741                 }
 742
 743                 function get_curl_code() {
 744                         return $this->curl_code;
 745                 }
 746
 747                 function set_curl_content_type($content_type) {
 748                         $this->curl_content_type = $content_type;
 749                 }
 750
 751                 function get_curl_content_type() {
 752                         return $this->curl_content_type;
 753                 }
 754
 755                 function set_curl_headers($headers) {
 756                         $this->curl_headers = $headers;
 757                 }
 758
 759                 function get_curl_headers() {
 760                         return $this->curl_headers;
 761                 }
 762
 763                 function get_cached_avatar_image($avatar_image){
 764                         if($this->cached_profile_image[$avatar_image])
 765                                 return $this->cached_profile_image[$avatar_image];
 766
 767                         $path_parts = explode("/",$avatar_image);
 768                         $common_filename = $path_parts[count($path_parts)-1];
 769
 770                         if($this->cached_profile_picdate[$common_filename]){
 771                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 772                         } else {
 773                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like '%%/%s'",
 774                                         $common_filename);
 775                                 if(! count($r)){
 776                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
 777                                 } else {
 778                                         $this->cached_profile_picdate[$common_filename] = "?rev=".urlencode($r[0]['picdate']);
 779                                         $this->cached_profile_image[$avatar_image] = $avatar_image.$this->cached_profile_picdate[$common_filename];
 780                                 }
 781                         }
 782                         return $this->cached_profile_image[$avatar_image];
 783                 }
 784
 785
 786                 /**
 787                  * register template engine class
 788                  * if $name is "", is used class static property $class::$name
 789                  * @param string $class
 790                  * @param string $name
 791                  */
 792                 function register_template_engine($class, $name = '') {
 793                         if ($name===""){
 794                                 $v = get_class_vars( $class );
 795                                 if(x($v,"name")) $name = $v['name'];
 796                         }
 797                         if ($name===""){
 798                                 echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
 799                                 killme();
 800                         }
 801                         $this->template_engines[$name] = $class;
 802                 }
 803
 804                 /**
 805                  * return template engine instance. If $name is not defined,
 806                  * return engine defined by theme, or default
 807                  *
 808                  * @param strin $name Template engine name
 809                  * @return object Template Engine instance
 810                  */
 811                 function template_engine($name = ''){
 812                         if ($name!=="") {
 813                                 $template_engine = $name;
 814                         } else {
 815                                 $template_engine = 'smarty3';
 816                                 if (x($this->theme, 'template_engine')) {
 817                                         $template_engine = $this->theme['template_engine'];
 818                                 }
 819                         }
 820
 821                         if (isset($this->template_engines[$template_engine])){
 822                                 if(isset($this->template_engine_instance[$template_engine])){
 823                                         return $this->template_engine_instance[$template_engine];
 824                                 } else {
 825                                         $class = $this->template_engines[$template_engine];
 826                                         $obj = new $class;
 827                                         $this->template_engine_instance[$template_engine] = $obj;
 828                                         return $obj;
 829                                 }
 830                         }
 831
 832                         echo "template engine <tt>$template_engine</tt> is not registered!\n"; killme();
 833                 }
 834
 835                 function get_template_engine() {
 836                         return $this->theme['template_engine'];
 837                 }
 838
 839                 function set_template_engine($engine = 'smarty3') {
 840                         $this->theme['template_engine'] = $engine;
 841                         /*
 842                         $this->theme['template_engine'] = 'smarty3';
 843
 844                         switch($engine) {
 845                                 case 'smarty3':
 846                                         if(is_writable('view/smarty3/'))
 847                                                 $this->theme['template_engine'] = 'smarty3';
 848                                         break;
 849                                 default:
 850                                         break;
 851                         }
 852                         */
 853                 }
 854
 855                 function get_template_ldelim($engine = 'smarty3') {
 856                         return $this->ldelim[$engine];
 857                 }
 858
 859                 function get_template_rdelim($engine = 'smarty3') {
 860                         return $this->rdelim[$engine];
 861                 }
 862
 863                 function save_timestamp($stamp, $value) {
 864                         $duration = (float)(microtime(true)-$stamp);
 865
 866                         $this->performance[$value] += (float)$duration;
 867                         $this->performance["marktime"] += (float)$duration;
 868                 }
 869
 870                 function mark_timestamp($mark) {
 871                         //$this->performance["markstart"] -= microtime(true) - $this->performance["marktime"];
 872                         $this->performance["markstart"] = microtime(true) - $this->performance["markstart"] - $this->performance["marktime"];
 873                 }
 874
 875                 function get_useragent() {
 876                         return(FRIENDICA_PLATFORM." ".FRIENDICA_VERSION."-".DB_UPDATE_VERSION."; ".$this->get_baseurl());
 877                 }
 878
 879         }
 880 }
 881
 882 // retrieve the App structure
 883 // useful in functions which require it but don't get it passed to them
 884
 885 if(! function_exists('get_app')) {
 886         function get_app() {
 887                 global $a;
 888                 return $a;
 889         }
 890 };
 891
 892
 893 // Multi-purpose function to check variable state.
 894 // Usage: x($var) or $x($array,'key')
 895 // returns false if variable/key is not set
 896 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
 897 // e.g. x('') or x(0) returns 0;
 898
 899 if(! function_exists('x')) {
 900         function x($s,$k = NULL) {
 901                 if($k != NULL) {
 902                         if((is_array($s)) && (array_key_exists($k,$s))) {
 903                                 if($s[$k])
 904                                         return (int) 1;
 905                                 return (int) 0;
 906                 }
 907                         return false;
 908                 }
 909                 else {
 910                         if(isset($s)) {
 911                                 if($s) {
 912                                         return (int) 1;
 913                                 }
 914                                 return (int) 0;
 915                         }
 916                         return false;
 917                 }
 918         }
 919 }
 920
 921 // called from db initialisation if db is dead.
 922
 923 if(! function_exists('system_unavailable')) {
 924         function system_unavailable() {
 925                 include('system_unavailable.php');
 926                 system_down();
 927                 killme();
 928         }
 929 }
 930
 931
 932
 933 function clean_urls() {
 934         global $a;
 935         //      if($a->config['system']['clean_urls'])
 936         return true;
 937         //      return false;
 938 }
 939
 940 function z_path() {
 941         global $a;
 942         $base = $a->get_baseurl();
 943         if(! clean_urls())
 944                 $base .= '/?q=';
 945         return $base;
 946 }
 947
 948 function z_root() {
 949         global $a;
 950         return $a->get_baseurl();
 951 }
 952
 953 function absurl($path) {
 954         if(strpos($path,'/') === 0)
 955                 return z_path() . $path;
 956         return $path;
 957 }
 958
 959 function is_ajax() {
 960         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
 961 }
 962
 963 function check_db() {
 964
 965         $build = get_config('system','build');
 966         if(! x($build)) {
 967                 set_config('system','build',DB_UPDATE_VERSION);
 968                 $build = DB_UPDATE_VERSION;
 969         }
 970         if($build != DB_UPDATE_VERSION)
 971                 proc_run('php', 'include/dbupdate.php');
 972
 973 }
 974
 975
 976
 977
 978 // Sets the base url for use in cmdline programs which don't have
 979 // $_SERVER variables
 980
 981 if(! function_exists('check_url')) {
 982         function check_url(&$a) {
 983
 984                 $url = get_config('system','url');
 985
 986                 // if the url isn't set or the stored url is radically different
 987                 // than the currently visited url, store the current value accordingly.
 988                 // "Radically different" ignores common variations such as http vs https
 989                 // and www.example.com vs example.com.
 990                 // We will only change the url to an ip address if there is no existing setting
 991
 992                 if(! x($url))
 993                         $url = set_config('system','url',$a->get_baseurl());
 994                 if((! link_compare($url,$a->get_baseurl())) && (! preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/",$a->get_hostname)))
 995                         $url = set_config('system','url',$a->get_baseurl());
 996
 997                 return;
 998         }
 999 }
1000
1001
1002 // Automatic database updates
1003
1004 if(! function_exists('update_db')) {
1005         function update_db(&$a) {
1006
1007                 $build = get_config('system','build');
1008                 if(! x($build))
1009                         $build = set_config('system','build',DB_UPDATE_VERSION);
1010
1011                 if($build != DB_UPDATE_VERSION) {
1012                         $stored = intval($build);
1013                         $current = intval(DB_UPDATE_VERSION);
1014                         if(($stored < $current) && file_exists('update.php')) {
1015
1016                                 load_config('database');
1017
1018                                 // We're reporting a different version than what is currently installed.
1019                                 // Run any existing update scripts to bring the database up to current.
1020
1021                                 require_once('update.php');
1022
1023                                 // make sure that boot.php and update.php are the same release, we might be
1024                                 // updating right this very second and the correct version of the update.php
1025                                 // file may not be here yet. This can happen on a very busy site.
1026
1027                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
1028
1029                                         // Compare the current structure with the defined structure
1030
1031                                         $t = get_config('database','dbupdate_'.DB_UPDATE_VERSION);
1032                                         if($t !== false)
1033                                                 return;
1034
1035                                         set_config('database','dbupdate_'.DB_UPDATE_VERSION, time());
1036
1037                                         require_once("include/dbstructure.php");
1038                                         $retval = update_structure(false, true);
1039                                         if($retval) {
1040                                                 update_fail(
1041                                                         DB_UPDATE_VERSION,
1042                                                         sprintf(t('Update %s failed. See error logs.'), DB_UPDATE_VERSION)
1043                                                 );
1044                                                 break;
1045                                         } else {
1046                                                 set_config('database','dbupdate_'.DB_UPDATE_VERSION, 'success');
1047                                         }
1048
1049                                         for($x = $stored; $x < $current; $x ++) {
1050                                                 if(function_exists('update_' . $x)) {
1051
1052                                                         // There could be a lot of processes running or about to run.
1053                                                         // We want exactly one process to run the update command.
1054                                                         // So store the fact that we're taking responsibility
1055                                                         // after first checking to see if somebody else already has.
1056
1057                                                         // If the update fails or times-out completely you may need to
1058                                                         // delete the config entry to try again.
1059
1060                                                         $t = get_config('database','update_' . $x);
1061                                                         if($t !== false)
1062                                                                 break;
1063                                                         set_config('database','update_' . $x, time());
1064
1065                                                         // call the specific update
1066
1067                                                         $func = 'update_' . $x;
1068                                                         $retval = $func();
1069                                                         if($retval) {
1070                                                                 //send the administrator an e-mail
1071                                                                 update_fail(
1072                                                                         $x,
1073                                                                         sprintf(t('Update %s failed. See error logs.'), $x)
1074                                                                 );
1075                                                                 break;
1076                                                         } else {
1077                                                                 set_config('database','update_' . $x, 'success');
1078                                                                 set_config('system','build', $x + 1);
1079                                                         }
1080                                                 } else {
1081                                                         set_config('database','update_' . $x, 'success');
1082                                                         set_config('system','build', $x + 1);
1083                                                 }
1084                                         }
1085                                 }
1086                         }
1087                 }
1088
1089                 return;
1090         }
1091 }
1092
1093
1094 if(! function_exists('check_plugins')) {
1095         function check_plugins(&$a) {
1096
1097                 /**
1098                  *
1099                  * Synchronise plugins:
1100                  *
1101                  * $a->config['system']['addon'] contains a comma-separated list of names
1102                  * of plugins/addons which are used on this system.
1103                  * Go through the database list of already installed addons, and if we have
1104                  * an entry, but it isn't in the config list, call the uninstall procedure
1105                  * and mark it uninstalled in the database (for now we'll remove it).
1106                  * Then go through the config list and if we have a plugin that isn't installed,
1107                  * call the install procedure and add it to the database.
1108                  *
1109                  */
1110
1111                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
1112                 if(count($r))
1113                         $installed = $r;
1114                 else
1115                         $installed = array();
1116
1117                 $plugins = get_config('system','addon');
1118                 $plugins_arr = array();
1119
1120                 if($plugins)
1121                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
1122
1123                 $a->plugins = $plugins_arr;
1124
1125                 $installed_arr = array();
1126
1127                 if(count($installed)) {
1128                         foreach($installed as $i) {
1129                                 if(! in_array($i['name'],$plugins_arr)) {
1130                                         uninstall_plugin($i['name']);
1131                                 }
1132                                 else {
1133                                         $installed_arr[] = $i['name'];
1134                                 }
1135                         }
1136                 }
1137
1138                 if(count($plugins_arr)) {
1139                         foreach($plugins_arr as $p) {
1140                                 if(! in_array($p,$installed_arr)) {
1141                                         install_plugin($p);
1142                                 }
1143                         }
1144                 }
1145
1146
1147                 load_hooks();
1148
1149                 return;
1150         }
1151 }
1152
1153 function get_guid($size=16) {
1154         $exists = true; // assume by default that we don't have a unique guid
1155         do {
1156                 $prefix = "";
1157                 while (strlen($prefix) < ($size - 13))
1158                         $prefix .= mt_rand();
1159
1160                 $s = substr(uniqid($prefix), -$size);
1161
1162                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
1163                 if(! count($r))
1164                         $exists = false;
1165         } while($exists);
1166         q("insert into guid (guid) values ('%s') ", dbesc($s));
1167         return $s;
1168 }
1169
1170 /*function get_guid($size=16) {
1171         $exists = true; // assume by default that we don't have a unique guid
1172         do {
1173                 $s = random_string($size);
1174                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
1175                 if(! count($r))
1176                         $exists = false;
1177         } while($exists);
1178         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
1179         return $s;
1180 }*/
1181
1182
1183 // wrapper for adding a login box. If $register == true provide a registration
1184 // link. This will most always depend on the value of $a->config['register_policy'].
1185 // returns the complete html for inserting into the page
1186
1187 if(! function_exists('login')) {
1188         function login($register = false, $hiddens=false) {
1189                 $a = get_app();
1190                 $o = "";
1191                 $reg = false;
1192                 if ($register) {
1193                         $reg = array(
1194                                 'title' => t('Create a New Account'),
1195                                 'desc' => t('Register')
1196                         );
1197                 }
1198
1199                 $noid = get_config('system','no_openid');
1200
1201                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
1202
1203                 if(local_user()) {
1204                         $tpl = get_markup_template("logout.tpl");
1205                 }
1206                 else {
1207                         $a->page['htmlhead'] .= replace_macros(get_markup_template("login_head.tpl"),array(
1208                                 '$baseurl'              => $a->get_baseurl(true)
1209                         ));
1210
1211                         $tpl = get_markup_template("login.tpl");
1212                         $_SESSION['return_url'] = $a->query_string;
1213                         $a->module = 'login';
1214                 }
1215
1216                 $o .= replace_macros($tpl, array(
1217
1218                         '$dest_url'     => $dest_url,
1219                         '$logout'       => t('Logout'),
1220                         '$login'        => t('Login'),
1221
1222                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
1223                         '$lpassword'    => array('password', t('Password: '), '', ''),
1224                         '$lremember'    => array('remember', t('Remember me'), 0,  ''),
1225
1226                         '$openid'               => !$noid,
1227                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
1228
1229                         '$hiddens'      => $hiddens,
1230
1231                         '$register'     => $reg,
1232
1233                         '$lostpass'     => t('Forgot your password?'),
1234                         '$lostlink'     => t('Password Reset'),
1235
1236                         '$tostitle'     => t('Website Terms of Service'),
1237                         '$toslink'      => t('terms of service'),
1238
1239                         '$privacytitle' => t('Website Privacy Policy'),
1240                         '$privacylink'  => t('privacy policy'),
1241
1242                 ));
1243
1244                 call_hooks('login_hook',$o);
1245
1246                 return $o;
1247         }
1248 }
1249
1250 // Used to end the current process, after saving session state.
1251
1252 if(! function_exists('killme')) {
1253         function killme() {
1254                 session_write_close();
1255                 exit;
1256         }
1257 }
1258
1259 // redirect to another URL and terminate this process.
1260
1261 if(! function_exists('goaway')) {
1262         function goaway($s) {
1263                 header("Location: $s");
1264                 killme();
1265         }
1266 }
1267
1268
1269 // Returns the uid of locally logged in user or false.
1270
1271 if(! function_exists('local_user')) {
1272         function local_user() {
1273                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1274                         return intval($_SESSION['uid']);
1275                 return false;
1276         }
1277 }
1278
1279 // Returns contact id of authenticated site visitor or false
1280
1281 if(! function_exists('remote_user')) {
1282         function remote_user() {
1283                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1284                         return intval($_SESSION['visitor_id']);
1285                 return false;
1286         }
1287 }
1288
1289 // contents of $s are displayed prominently on the page the next time
1290 // a page is loaded. Usually used for errors or alerts.
1291
1292 if(! function_exists('notice')) {
1293         /**
1294          * Show an error message to user.
1295          *
1296          * This function save text in session, to be shown to the user at next page load
1297          *
1298          * @param string $s - Text of notice
1299          */
1300         function notice($s) {
1301                 $a = get_app();
1302                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
1303                 if($a->interactive)
1304                         $_SESSION['sysmsg'][] = $s;
1305         }
1306 }
1307 if(! function_exists('info')) {
1308         /**
1309          * Show an info message to user.
1310          *
1311          * This function save text in session, to be shown to the user at next page load
1312          *
1313          * @param string $s - Text of notice
1314          */
1315         function info($s) {
1316                 $a = get_app();
1317
1318                 if (local_user() AND get_pconfig(local_user(),'system','ignore_info'))
1319                         return;
1320
1321                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
1322                 if($a->interactive)
1323                         $_SESSION['sysmsg_info'][] = $s;
1324         }
1325 }
1326
1327
1328 // wrapper around config to limit the text length of an incoming message
1329
1330 if(! function_exists('get_max_import_size')) {
1331         function get_max_import_size() {
1332                 global $a;
1333                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1334         }
1335 }
1336
1337
1338
1339 /**
1340  *
1341  * Function : profile_load
1342  * @parameter App    $a
1343  * @parameter string $nickname
1344  * @parameter int    $profile
1345  *
1346  * Summary: Loads a profile into the page sidebar.
1347  * The function requires a writeable copy of the main App structure, and the nickname
1348  * of a registered local account.
1349  *
1350  * If the viewer is an authenticated remote viewer, the profile displayed is the
1351  * one that has been configured for his/her viewing in the Contact manager.
1352  * Passing a non-zero profile ID can also allow a preview of a selected profile
1353  * by the owner.
1354  *
1355  * Profile information is placed in the App structure for later retrieval.
1356  * Honours the owner's chosen theme for display.
1357  *
1358  * IMPORTANT: Should only be run in the _init() functions of a module. That ensures that
1359  * the theme is chosen before the _init() function of a theme is run, which will usually
1360  * load a lot of theme-specific content
1361  *
1362  */
1363
1364 if(! function_exists('profile_load')) {
1365         function profile_load(&$a, $nickname, $profile = 0, $profiledata = array()) {
1366
1367                 $user = q("select uid from user where nickname = '%s' limit 1",
1368                         dbesc($nickname)
1369                 );
1370
1371                 if(! ($user && count($user))) {
1372                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1373                         notice( t('Requested account is not available.') . EOL );
1374                         $a->error = 404;
1375                         return;
1376                 }
1377
1378                 if(remote_user() && count($_SESSION['remote'])) {
1379                         foreach($_SESSION['remote'] as $visitor) {
1380                                 if($visitor['uid'] == $user[0]['uid']) {
1381                                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1382                                                 intval($visitor['cid'])
1383                                         );
1384                                         if(count($r))
1385                                                 $profile = $r[0]['profile-id'];
1386                                         break;
1387                                 }
1388                         }
1389                 }
1390
1391                 $r = null;
1392
1393                 if($profile) {
1394                         $profile_int = intval($profile);
1395                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1396                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
1397                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1398                                         dbesc($nickname),
1399                                         intval($profile_int)
1400                         );
1401                 }
1402                 if((! $r) && (!  count($r))) {
1403                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1404                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
1405                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1406                                         dbesc($nickname)
1407                         );
1408                 }
1409
1410                 if(($r === false) || (! count($r))) {
1411                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1412                         notice( t('Requested profile is not available.') . EOL );
1413                         $a->error = 404;
1414                         return;
1415                 }
1416
1417                 // fetch user tags if this isn't the default profile
1418
1419                 if(! $r[0]['is-default']) {
1420                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1421                                         intval($r[0]['profile_uid'])
1422                         );
1423                         if($x && count($x))
1424                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1425                 }
1426
1427                 $a->profile = $r[0];
1428
1429                 $a->profile['mobile-theme'] = get_pconfig($a->profile['profile_uid'], 'system', 'mobile_theme');
1430                 $a->profile['network'] = NETWORK_DFRN;
1431
1432                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1433
1434                 if (!$profiledata)
1435                         $_SESSION['theme'] = $a->profile['theme'];
1436
1437                 $_SESSION['mobile-theme'] = $a->profile['mobile-theme'];
1438
1439                 /**
1440                  * load/reload current theme info
1441                  */
1442
1443                 $a->set_template_engine(); // reset the template engine to the default in case the user's theme doesn't specify one
1444
1445                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1446                 if (file_exists($theme_info_file)){
1447                         require_once($theme_info_file);
1448                 }
1449
1450                 if(! (x($a->page,'aside')))
1451                         $a->page['aside'] = '';
1452
1453                 if(local_user() && local_user() == $a->profile['uid'] && $profiledata) {
1454                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1455                                 '$editprofile' => t('Edit profile'),
1456                                 '$profid' => $a->profile['id']
1457                         ));
1458                 }
1459
1460                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1461
1462                 // To-Do:
1463                 // By now, the contact block isn't shown, when a different profile is given
1464                 // But: When this profile was on the same server, then we could display the contacts
1465                 if ($profiledata)
1466                         $a->page['aside'] .= profile_sidebar($profiledata, true);
1467                 else
1468                         $a->page['aside'] .= profile_sidebar($a->profile, $block);
1469
1470
1471                 /*if(! $block)
1472                  $a->page['aside'] .= contact_block();*/
1473
1474                 return;
1475         }
1476 }
1477
1478
1479 /**
1480  *
1481  * Function: profile_sidebar
1482  *
1483  * Formats a profile for display in the sidebar.
1484  * It is very difficult to templatise the HTML completely
1485  * because of all the conditional logic.
1486  *
1487  * @parameter: array $profile
1488  *
1489  * Returns HTML string stuitable for sidebar inclusion
1490  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1491  *
1492  */
1493
1494
1495 if(! function_exists('profile_sidebar')) {
1496         function profile_sidebar($profile, $block = 0) {
1497                 $a = get_app();
1498
1499                 $o = '';
1500                 $location = false;
1501                 $address = false;
1502                 $pdesc = true;
1503
1504                 if((! is_array($profile)) && (! count($profile)))
1505                         return $o;
1506
1507                 $profile['picdate'] = urlencode($profile['picdate']);
1508
1509                 if (($profile['network'] != "") AND ($profile['network'] != NETWORK_DFRN)) {
1510                         require_once('include/contact_selectors.php');
1511                         if ($profile['url'] != "")
1512                                 $profile['network_name'] = '<a href="'.$profile['url'].'">'.network_to_name($profile['network'])."</a>";
1513                         else
1514                                 $profile['network_name'] = network_to_name($profile['network']);
1515                 } else
1516                         $profile['network_name'] = "";
1517
1518                 call_hooks('profile_sidebar_enter', $profile);
1519
1520
1521                 // don't show connect link to yourself
1522                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1523
1524                 // don't show connect link to authenticated visitors either
1525                 if(remote_user() && count($_SESSION['remote'])) {
1526                         foreach($_SESSION['remote'] as $visitor) {
1527                                 if($visitor['uid'] == $profile['uid']) {
1528                                         $connect = false;
1529                                         break;
1530                                 }
1531                         }
1532                 }
1533
1534                 // Is the local user already connected to that user?
1535                 if ($connect AND local_user()) {
1536                         if (isset($profile["url"]))
1537                                 $profile_url = normalise_link($profile["url"]);
1538                         else
1539                                 $profile_url = normalise_link($a->get_baseurl()."/profile/".$profile["nickname"]);
1540
1541                         $r = q("SELECT * FROM `contact` WHERE NOT `pending` AND `uid` = %d AND `nurl` = '%s'",
1542                                 local_user(), $profile_url);
1543                         if (count($r))
1544                                 $connect = false;
1545                 }
1546
1547                 if ($connect AND ($profile['network'] != NETWORK_DFRN) AND !isset($profile['remoteconnect']))
1548                                 $connect = false;
1549
1550                 if (isset($profile['remoteconnect']))
1551                         $remoteconnect = $profile['remoteconnect'];
1552
1553                 if( get_my_url() && $profile['unkmail'] && ($profile['uid'] != local_user()) )
1554                         $wallmessage = t('Message');
1555                 else
1556                         $wallmessage = false;
1557
1558                 // show edit profile to yourself
1559                 if ($profile['uid'] == local_user() && feature_enabled(local_user(),'multi_profiles')) {
1560                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1561                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1562                                         local_user());
1563
1564                         $profile['menu'] = array(
1565                                 'chg_photo' => t('Change profile photo'),
1566                                 'cr_new' => t('Create New Profile'),
1567                                 'entries' => array(),
1568                         );
1569
1570                         if(count($r)) {
1571
1572                                 foreach($r as $rr) {
1573                                         $profile['menu']['entries'][] = array(
1574                                                 'photo' => $rr['thumb'],
1575                                                 'id' => $rr['id'],
1576                                                 'alt' => t('Profile Image'),
1577                                                 'profile_name' => $rr['profile-name'],
1578                                                 'isdefault' => $rr['is-default'],
1579                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1580                                                 'edit_visibility' => t('Edit visibility'),
1581
1582                                         );
1583                                 }
1584
1585
1586                         }
1587                 }
1588                 if ($profile['uid'] == local_user() && !feature_enabled(local_user(),'multi_profiles')) {
1589                         $profile['edit'] = array($a->get_baseurl(). '/profiles/'.$profile['id'], t('Edit profile'),"", t('Edit profile'));
1590                         $profile['menu'] = array(
1591                                 'chg_photo' => t('Change profile photo'),
1592                                 'cr_new' => null,
1593                                 'entries' => array(),
1594                         );
1595                 }
1596
1597                 if((x($profile,'address') == 1)
1598                                 || (x($profile,'locality') == 1)
1599                                 || (x($profile,'region') == 1)
1600                                 || (x($profile,'postal-code') == 1)
1601                                 || (x($profile,'country-name') == 1))
1602                         $location = t('Location:');
1603
1604                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1605
1606
1607                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1608
1609                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1610
1611                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1612                         $location = $pdesc = $gender = $marital = $homepage = False;
1613                 }
1614
1615                 $firstname = ((strpos($profile['name'],' '))
1616                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1617                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1618
1619                 $diaspora = array(
1620                         'podloc' => $a->get_baseurl(),
1621                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1622                         'nickname' => $profile['nickname'],
1623                         'fullname' => $profile['name'],
1624                         'firstname' => $firstname,
1625                         'lastname' => $lastname,
1626                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1627                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1628                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1629                 );
1630
1631                 if (!$block){
1632                         $contact_block = contact_block();
1633                 }
1634
1635
1636                 $p = array();
1637                 foreach($profile as $k => $v) {
1638                         $k = str_replace('-','_',$k);
1639                         $p[$k] = $v;
1640                 }
1641
1642                 if($a->theme['template_engine'] === 'internal')
1643                         $location = template_escape($location);
1644
1645
1646                 $tpl = get_markup_template('profile_vcard.tpl');
1647                 $o .= replace_macros($tpl, array(
1648                         '$profile' => $p,
1649                         '$connect'  => $connect,
1650                         '$remoteconnect'  => $remoteconnect,
1651                         '$wallmessage' => $wallmessage,
1652                         '$location' => $location,
1653                         '$gender'   => $gender,
1654                         '$pdesc'        => $pdesc,
1655                         '$marital'  => $marital,
1656                         '$homepage' => $homepage,
1657                         '$network' =>  t('Network:'),
1658                         '$diaspora' => $diaspora,
1659                         '$contact_block' => $contact_block,
1660                 ));
1661
1662
1663                 $arr = array('profile' => &$profile, 'entry' => &$o);
1664
1665                 call_hooks('profile_sidebar', $arr);
1666
1667                 return $o;
1668         }
1669 }
1670
1671
1672 if(! function_exists('get_birthdays')) {
1673         function get_birthdays() {
1674
1675                 $a = get_app();
1676                 $o = '';
1677
1678                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1679                         return $o;
1680
1681 //              $mobile_detect = new Mobile_Detect();
1682 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1683
1684 //              if($is_mobile)
1685 //                      return $o;
1686
1687                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1688                 $bd_short = t('F d');
1689
1690                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1691                                 INNER JOIN `contact` ON `contact`.`id` = `event`.`cid`
1692                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1693                                 ORDER BY `start` ASC ",
1694                                 intval(local_user()),
1695                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1696                                 dbesc(datetime_convert('UTC','UTC','now'))
1697                 );
1698
1699                 if($r && count($r)) {
1700                         $total = 0;
1701                         $now = strtotime('now');
1702                         $cids = array();
1703
1704                         $istoday = false;
1705                         foreach($r as $rr) {
1706                                 if(strlen($rr['name']))
1707                                         $total ++;
1708                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1709                                         $istoday = true;
1710                         }
1711                         $classtoday = $istoday ? ' birthday-today ' : '';
1712                         if($total) {
1713                                 foreach($r as &$rr) {
1714                                         if(! strlen($rr['name']))
1715                                                 continue;
1716
1717                                         // avoid duplicates
1718
1719                                         if(in_array($rr['cid'],$cids))
1720                                                 continue;
1721                                         $cids[] = $rr['cid'];
1722
1723                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1724                                         $sparkle = '';
1725                                         $url = $rr['url'];
1726                                         if($rr['network'] === NETWORK_DFRN) {
1727                                                 $sparkle = " sparkle";
1728                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1729                                         }
1730
1731                                         $rr['link'] = $url;
1732                                         $rr['title'] = $rr['name'];
1733                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1734                                         $rr['startime'] = Null;
1735                                         $rr['today'] = $today;
1736
1737                                 }
1738                         }
1739                 }
1740                 $tpl = get_markup_template("birthdays_reminder.tpl");
1741                 return replace_macros($tpl, array(
1742                         '$baseurl' => $a->get_baseurl(),
1743                         '$classtoday' => $classtoday,
1744                         '$count' => $total,
1745                         '$event_reminders' => t('Birthday Reminders'),
1746                         '$event_title' => t('Birthdays this week:'),
1747                         '$events' => $r,
1748                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1749                         '$rbr' => '}'
1750
1751                 ));
1752         }
1753 }
1754
1755
1756 if(! function_exists('get_events')) {
1757         function get_events() {
1758
1759                 require_once('include/bbcode.php');
1760
1761                 $a = get_app();
1762
1763                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1764                         return $o;
1765
1766
1767 //              $mobile_detect = new Mobile_Detect();
1768 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1769
1770 //              if($is_mobile)
1771 //                      return $o;
1772
1773                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1774                 $bd_short = t('F d');
1775
1776                 $r = q("SELECT `event`.* FROM `event`
1777                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1778                                 ORDER BY `start` ASC ",
1779                                 intval(local_user()),
1780                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1781                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1782                 );
1783
1784                 if($r && count($r)) {
1785                         $now = strtotime('now');
1786                         $istoday = false;
1787                         foreach($r as $rr) {
1788                                 if(strlen($rr['name']))
1789                                         $total ++;
1790
1791                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1792                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1793                                         $istoday = true;
1794                         }
1795                         $classtoday = (($istoday) ? 'event-today' : '');
1796
1797
1798                         foreach($r as &$rr) {
1799                                 if($rr['adjust'])
1800                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1801                                 else
1802                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1803                                 $md .= "/#link-".$rr['id'];
1804
1805                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1806                                 if(! $title)
1807                                         $title = t('[No description]');
1808
1809                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1810                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1811
1812                                 $rr['link'] = $md;
1813                                 $rr['title'] = $title;
1814                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1815                                 $rr['startime'] = $strt;
1816                                 $rr['today'] = $today;
1817                         }
1818                 }
1819
1820                 $tpl = get_markup_template("events_reminder.tpl");
1821                 return replace_macros($tpl, array(
1822                         '$baseurl' => $a->get_baseurl(),
1823                         '$classtoday' => $classtoday,
1824                         '$count' => count($r),
1825                         '$event_reminders' => t('Event Reminders'),
1826                         '$event_title' => t('Events this week:'),
1827                         '$events' => $r,
1828                 ));
1829         }
1830 }
1831
1832
1833 /**
1834  *
1835  * Wrap calls to proc_close(proc_open()) and call hook
1836  * so plugins can take part in process :)
1837  *
1838  * args:
1839  * $cmd program to run
1840  *  next args are passed as $cmd command line
1841  *
1842  * e.g.: proc_run("ls","-la","/tmp");
1843  *
1844  * $cmd and string args are surrounded with ""
1845  */
1846
1847 if(! function_exists('proc_run')) {
1848         function proc_run($cmd){
1849
1850                 $a = get_app();
1851
1852                 $args = func_get_args();
1853
1854                 $newargs = array();
1855                 if(! count($args))
1856                         return;
1857
1858                 // expand any arrays
1859
1860                 foreach($args as $arg) {
1861                         if(is_array($arg)) {
1862                                 foreach($arg as $n) {
1863                                         $newargs[] = $n;
1864                                 }
1865                         }
1866                         else
1867                                 $newargs[] = $arg;
1868                 }
1869
1870                 $args = $newargs;
1871
1872                 $arr = array('args' => $args, 'run_cmd' => true);
1873
1874                 call_hooks("proc_run", $arr);
1875                 if(! $arr['run_cmd'])
1876                         return;
1877
1878                 if(count($args) && $args[0] === 'php')
1879                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1880
1881         // add baseurl to args. cli scripts can't construct it
1882         $args[] = $a->get_baseurl();
1883
1884         for($x = 0; $x < count($args); $x ++)
1885                         $args[$x] = escapeshellarg($args[$x]);
1886
1887
1888
1889                 $cmdline = implode($args," ");
1890                 if(get_config('system','proc_windows'))
1891                         proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
1892                 else
1893                         proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
1894         }
1895 }
1896
1897 if(! function_exists('current_theme')) {
1898         function current_theme(){
1899                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1900
1901                 $a = get_app();
1902
1903 //              $mobile_detect = new Mobile_Detect();
1904 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1905                 $is_mobile = $a->is_mobile || $a->is_tablet;
1906
1907                 if($is_mobile) {
1908                         if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1909                                 $system_theme = '';
1910                                 $theme_name = '';
1911                         }
1912                         else {
1913                                 $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1914                                 $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1915
1916                                 if($theme_name === '---') {
1917                                         // user has selected to have the mobile theme be the same as the normal one
1918                                         $system_theme = '';
1919                                         $theme_name = '';
1920                                 }
1921                         }
1922                 }
1923                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1924                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1925                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1926                 }
1927
1928                 if($theme_name &&
1929                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1930                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1931                         return($theme_name);
1932
1933                 foreach($app_base_themes as $t) {
1934                         if(file_exists('view/theme/' . $t . '/style.css')||
1935                                         file_exists('view/theme/' . $t . '/style.php'))
1936                                 return($t);
1937                 }
1938
1939                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1940                 if(count($fallback))
1941                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1942
1943         }
1944 }
1945
1946 /*
1947  * Return full URL to theme which is currently in effect.
1948 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1949 */
1950 if(! function_exists('current_theme_url')) {
1951         function current_theme_url() {
1952                 global $a;
1953                 $t = current_theme();
1954                 if (file_exists('view/theme/' . $t . '/style.php'))
1955                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1956                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1957         }
1958 }
1959
1960 if(! function_exists('feed_birthday')) {
1961         function feed_birthday($uid,$tz) {
1962
1963                 /**
1964                  *
1965                  * Determine the next birthday, but only if the birthday is published
1966                  * in the default profile. We _could_ also look for a private profile that the
1967                  * recipient can see, but somebody could get mad at us if they start getting
1968                  * public birthday greetings when they haven't made this info public.
1969                  *
1970                  * Assuming we are able to publish this info, we are then going to convert
1971                  * the start time from the owner's timezone to UTC.
1972                  *
1973                  * This will potentially solve the problem found with some social networks
1974                  * where birthdays are converted to the viewer's timezone and salutations from
1975                  * elsewhere in the world show up on the wrong day. We will convert it to the
1976                  * viewer's timezone also, but first we are going to convert it from the birthday
1977                  * person's timezone to GMT - so the viewer may find the birthday starting at
1978                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1979                  *
1980                  */
1981
1982
1983                 $birthday = '';
1984
1985                 if(! strlen($tz))
1986                         $tz = 'UTC';
1987
1988                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1989                                 intval($uid)
1990                 );
1991
1992                 if($p && count($p)) {
1993                         $tmp_dob = substr($p[0]['dob'],5);
1994                         if(intval($tmp_dob)) {
1995                                 $y = datetime_convert($tz,$tz,'now','Y');
1996                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1997                                 $t_dob = strtotime($bd);
1998                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1999                                 if($t_dob < $now)
2000                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2001                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2002                         }
2003                 }
2004
2005                 return $birthday;
2006         }
2007 }
2008
2009 if(! function_exists('is_site_admin')) {
2010         function is_site_admin() {
2011                 $a = get_app();
2012
2013                 $adminlist = explode(",", str_replace(" ", "", $a->config['admin_email']));
2014
2015                 //if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
2016                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && in_array($a->user['email'], $adminlist))
2017                         return true;
2018                 return false;
2019         }
2020 }
2021
2022
2023 if(! function_exists('load_contact_links')) {
2024         function load_contact_links($uid) {
2025
2026                 $a = get_app();
2027
2028                 $ret = array();
2029
2030                 if(! $uid || x($a->contacts,'empty'))
2031                         return;
2032
2033                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
2034                                 intval($uid)
2035                 );
2036                 if(count($r)) {
2037                         foreach($r as $rr){
2038                                 $url = normalise_link($rr['url']);
2039                                 $ret[$url] = $rr;
2040                         }
2041                 }
2042                 else
2043                         $ret['empty'] = true;
2044                 $a->contacts = $ret;
2045                 return;
2046         }
2047 }
2048
2049 if(! function_exists('profile_tabs')){
2050         function profile_tabs($a, $is_owner=False, $nickname=Null){
2051                 //echo "<pre>"; var_dump($a->user); killme();
2052
2053                 if (is_null($nickname))
2054                         $nickname  = $a->user['nickname'];
2055
2056                 if(x($_GET,'tab'))
2057                         $tab = notags(trim($_GET['tab']));
2058
2059                 $url = $a->get_baseurl() . '/profile/' . $nickname;
2060
2061                 $tabs = array(
2062                         array(
2063                                 'label'=>t('Status'),
2064                                 'url' => $url,
2065                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
2066                                 'title' => t('Status Messages and Posts'),
2067                                 'id' => 'status-tab',
2068                         ),
2069                         array(
2070                                 'label' => t('Profile'),
2071                                 'url'   => $url.'/?tab=profile',
2072                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
2073                                 'title' => t('Profile Details'),
2074                                 'id' => 'profile-tab',
2075                         ),
2076                         array(
2077                                 'label' => t('Photos'),
2078                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
2079                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
2080                                 'title' => t('Photo Albums'),
2081                                 'id' => 'photo-tab',
2082                         ),
2083                         array(
2084                                 'label' => t('Videos'),
2085                                 'url'   => $a->get_baseurl() . '/videos/' . $nickname,
2086                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='videos')?'active':''),
2087                                 'title' => t('Videos'),
2088                                 'id' => 'video-tab',
2089                         ),
2090                 );
2091
2092                 if ($is_owner){
2093                         $tabs[] = array(
2094                                 'label' => t('Events'),
2095                                 'url'   => $a->get_baseurl() . '/events',
2096                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
2097                                 'title' => t('Events and Calendar'),
2098                                 'id' => 'events-tab',
2099                         );
2100                         $tabs[] = array(
2101                                 'label' => t('Personal Notes'),
2102                                 'url'   => $a->get_baseurl() . '/notes',
2103                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
2104                                 'title' => t('Only You Can See This'),
2105                                 'id' => 'notes-tab',
2106                         );
2107                 }
2108
2109
2110                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
2111                 call_hooks('profile_tabs', $arr);
2112
2113                 $tpl = get_markup_template('common_tabs.tpl');
2114
2115                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
2116         }
2117 }
2118
2119 function get_my_url() {
2120         if(x($_SESSION,'my_url'))
2121                 return $_SESSION['my_url'];
2122         return false;
2123 }
2124
2125 function zrl_init(&$a) {
2126         $tmp_str = get_my_url();
2127         if(validate_url($tmp_str)) {
2128                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
2129                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
2130                 call_hooks('zrl_init',$arr);
2131         }
2132 }
2133
2134 function zrl($s,$force = false) {
2135         if(! strlen($s))
2136                 return $s;
2137         if((! strpos($s,'/profile/')) && (! $force))
2138                 return $s;
2139         if($force && substr($s,-1,1) !== '/')
2140                 $s = $s . '/';
2141         $achar = strpos($s,'?') ? '&' : '?';
2142         $mine = get_my_url();
2143         if($mine and ! link_compare($mine,$s))
2144                 return $s . $achar . 'zrl=' . urlencode($mine);
2145         return $s;
2146 }
2147
2148 /**
2149 * returns querystring as string from a mapped array
2150 *
2151 * @param params Array
2152 * @return string
2153 */
2154 function build_querystring($params, $name=null) {
2155     $ret = "";
2156     foreach($params as $key=>$val) {
2157         if(is_array($val)) {
2158             if($name==null) {
2159                 $ret .= build_querystring($val, $key);
2160             } else {
2161                 $ret .= build_querystring($val, $name."[$key]");
2162             }
2163         } else {
2164             $val = urlencode($val);
2165             if($name!=null) {
2166                 $ret.=$name."[$key]"."=$val&";
2167             } else {
2168                 $ret.= "$key=$val&";
2169             }
2170         }
2171     }
2172     return $ret;
2173 }
2174
2175 function explode_querystring($query) {
2176         $arg_st = strpos($query, '?');
2177         if($arg_st !== false) {
2178                 $base = substr($query, 0, $arg_st);
2179                 $arg_st += 1;
2180         }
2181         else {
2182                 $base = '';
2183                 $arg_st = 0;
2184         }
2185
2186         $args = explode('&', substr($query, $arg_st));
2187         foreach($args as $k=>$arg) {
2188                 if($arg === '')
2189                         unset($args[$k]);
2190         }
2191         $args = array_values($args);
2192
2193         if(!$base) {
2194                 $base = $args[0];
2195                 unset($args[0]);
2196                 $args = array_values($args);
2197         }
2198
2199         return array(
2200                 'base' => $base,
2201                 'args' => $args,
2202         );
2203 }
2204
2205 /**
2206 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
2207 *
2208 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
2209 */
2210 function curPageURL() {
2211         $pageURL = 'http';
2212         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
2213         $pageURL .= "://";
2214         if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
2215                 $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
2216         } else {
2217                 $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
2218         }
2219         return $pageURL;
2220 }
2221
2222 function random_digits($digits) {
2223         $rn = '';
2224         for($i = 0; $i < $digits; $i++) {
2225                 $rn .= rand(0,9);
2226         }
2227         return $rn;
2228 }
2229
2230 function get_cachefile($file, $writemode = true) {
2231         $cache = get_itemcachepath();
2232
2233         if ((! $cache) || (! is_dir($cache)))
2234                 return("");
2235
2236         $subfolder = $cache."/".substr($file, 0, 2);
2237
2238         $cachepath = $subfolder."/".$file;
2239
2240         if ($writemode) {
2241                 if (!is_dir($subfolder)) {
2242                         mkdir($subfolder);
2243                         chmod($subfolder, 0777);
2244                 }
2245         }
2246
2247         return($cachepath);
2248 }
2249
2250 function clear_cache($basepath = "", $path = "") {
2251         if ($path == "") {
2252                 $basepath = get_itemcachepath();
2253                 $path = $basepath;
2254         }
2255
2256         if (($path == "") OR (!is_dir($path)))
2257                 return;
2258
2259         if (substr(realpath($path), 0, strlen($basepath)) != $basepath)
2260                 return;
2261
2262         $cachetime = (int)get_config('system','itemcache_duration');
2263         if ($cachetime == 0)
2264                 $cachetime = 86400;
2265
2266         if (is_writable($path)){
2267         if ($dh = opendir($path)) {
2268                 while (($file = readdir($dh)) !== false) {
2269                         $fullpath = $path."/".$file;
2270                         if ((filetype($fullpath) == "dir") and ($file != ".") and ($file != ".."))
2271                                 clear_cache($basepath, $fullpath);
2272                         if ((filetype($fullpath) == "file") and (filectime($fullpath) < (time() - $cachetime)))
2273                                 unlink($fullpath);
2274                 }
2275                 closedir($dh);
2276         }
2277         }
2278 }
2279
2280 function get_itemcachepath() {
2281         // Checking, if the cache is deactivated
2282         $cachetime = (int)get_config('system','itemcache_duration');
2283         if ($cachetime < 0)
2284                 return "";
2285
2286         $itemcache = get_config('system','itemcache');
2287         if (($itemcache != "") AND is_dir($itemcache) AND is_writable($itemcache))
2288                 return($itemcache);
2289
2290         $temppath = get_temppath();
2291
2292         if ($temppath != "") {
2293                 $itemcache = $temppath."/itemcache";
2294                 mkdir($itemcache);
2295
2296                 if (is_dir($itemcache) AND is_writable($itemcache)) {
2297                         set_config("system", "itemcache", $itemcache);
2298                         return($itemcache);
2299                 }
2300         }
2301         return "";
2302 }
2303
2304 function get_lockpath() {
2305         $lockpath = get_config('system','lockpath');
2306         if (($lockpath != "") AND is_dir($lockpath) AND is_writable($lockpath))
2307                 return($lockpath);
2308
2309         $temppath = get_temppath();
2310
2311         if ($temppath != "") {
2312                 $lockpath = $temppath."/lock";
2313                 mkdir($lockpath);
2314
2315                 if (is_dir($lockpath) AND is_writable($lockpath)) {
2316                         set_config("system", "lockpath", $lockpath);
2317                         return($lockpath);
2318                 }
2319         }
2320         return "";
2321 }
2322
2323 function get_temppath() {
2324         $temppath = get_config("system","temppath");
2325         if (($temppath != "") AND is_dir($temppath) AND is_writable($temppath))
2326                 return($temppath);
2327
2328         $temppath = sys_get_temp_dir();
2329         if (($temppath != "") AND is_dir($temppath) AND is_writable($temppath)) {
2330                 set_config("system", "temppath", $temppath);
2331                 return($temppath);
2332         }
2333
2334         return("");
2335 }
2336
2337 function set_template_engine(&$a, $engine = 'internal') {
2338 // This function is no longer necessary, but keep it as a wrapper to the class method
2339 // to avoid breaking themes again unnecessarily
2340
2341         $a->set_template_engine($engine);
2342 }
2343
2344 if(!function_exists('exif_imagetype')) {
2345         function exif_imagetype($file) {
2346                 $size = getimagesize($file);
2347                 return($size[2]);
2348         }
2349 }