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',      1170      );
  18 define ( 'EOL',                    "<br />\r\n"     );
  19 define ( 'ATOM_TIME',              'Y-m-d\TH:i:s\Z' );
  20
  21
  22 /**
  23  *
  24  * Image storage quality. Lower numbers save space at cost of image detail.
  25  * For ease of upgrade, please do not change here. Change jpeg quality with
  26  * $a->config['system']['jpeg_quality'] = n;
  27  * in .htconfig.php, where n is netween 1 and 100, and with very poor results
  28  * below about 50
  29  *
  30  */
  31
  32 define ( 'JPEG_QUALITY',            100  );
  33 /**
  34  * $a->config['system']['png_quality'] from 0 (uncompressed) to 9
  35  */
  36 define ( 'PNG_QUALITY',             8  );
  37
  38 /**
  39  *
  40  * An alternate way of limiting picture upload sizes. Specify the maximum pixel
  41  * length that pictures are allowed to be (for non-square pictures, it will apply
  42  * to the longest side). Pictures longer than this length will be resized to be
  43  * this length (on the longest side, the other side will be scaled appropriately).
  44  * Modify this value using
  45  *
  46  *    $a->config['system']['max_image_length'] = n;
  47  *
  48  * in .htconfig.php
  49  *
  50  * If you don't want to set a maximum length, set to -1. The default value is
  51  * defined by 'MAX_IMAGE_LENGTH' below.
  52  *
  53  */
  54 define ( 'MAX_IMAGE_LENGTH',        -1  );
  55
  56
  57 /**
  58  * Not yet used
  59  */
  60
  61 define ( 'DEFAULT_DB_ENGINE',  'MyISAM'  );
  62
  63 /**
  64  * SSL redirection policies
  65  */
  66
  67 define ( 'SSL_POLICY_NONE',         0 );
  68 define ( 'SSL_POLICY_FULL',         1 );
  69 define ( 'SSL_POLICY_SELFSIGN',     2 );
  70
  71
  72 /**
  73  * log levels
  74  */
  75
  76 define ( 'LOGGER_NORMAL',          0 );
  77 define ( 'LOGGER_TRACE',           1 );
  78 define ( 'LOGGER_DEBUG',           2 );
  79 define ( 'LOGGER_DATA',            3 );
  80 define ( 'LOGGER_ALL',             4 );
  81
  82 /**
  83  * registration policies
  84  */
  85
  86 define ( 'REGISTER_CLOSED',        0 );
  87 define ( 'REGISTER_APPROVE',       1 );
  88 define ( 'REGISTER_OPEN',          2 );
  89
  90 /**
  91  * relationship types
  92  */
  93
  94 define ( 'CONTACT_IS_FOLLOWER', 1);
  95 define ( 'CONTACT_IS_SHARING',  2);
  96 define ( 'CONTACT_IS_FRIEND',   3);
  97
  98
  99 /**
 100  * DB update return values
 101  */
 102
 103 define ( 'UPDATE_SUCCESS', 0);
 104 define ( 'UPDATE_FAILED',  1);
 105
 106
 107 /**
 108  *
 109  * page/profile types
 110  *
 111  * PAGE_NORMAL is a typical personal profile account
 112  * PAGE_SOAPBOX automatically approves all friend requests as CONTACT_IS_SHARING, (readonly)
 113  * PAGE_COMMUNITY automatically approves all friend requests as CONTACT_IS_SHARING, but with
 114  *      write access to wall and comments (no email and not included in page owner's ACL lists)
 115  * PAGE_FREELOVE automatically approves all friend requests as full friends (CONTACT_IS_FRIEND).
 116  *
 117  */
 118
 119 define ( 'PAGE_NORMAL',            0 );
 120 define ( 'PAGE_SOAPBOX',           1 );
 121 define ( 'PAGE_COMMUNITY',         2 );
 122 define ( 'PAGE_FREELOVE',          3 );
 123 define ( 'PAGE_BLOG',              4 );
 124 define ( 'PAGE_PRVGROUP',          5 );
 125
 126 /**
 127  * Network and protocol family types
 128  */
 129
 130 define ( 'NETWORK_DFRN',             'dfrn');    // Friendica, Mistpark, other DFRN implementations
 131 define ( 'NETWORK_ZOT',              'zot!');    // Zot!
 132 define ( 'NETWORK_OSTATUS',          'stat');    // status.net, identi.ca, GNU-social, other OStatus implementations
 133 define ( 'NETWORK_FEED',             'feed');    // RSS/Atom feeds with no known "post/notify" protocol
 134 define ( 'NETWORK_DIASPORA',         'dspr');    // Diaspora
 135 define ( 'NETWORK_MAIL',             'mail');    // IMAP/POP
 136 define ( 'NETWORK_MAIL2',            'mai2');    // extended IMAP/POP
 137 define ( 'NETWORK_FACEBOOK',         'face');    // Facebook API
 138 define ( 'NETWORK_LINKEDIN',         'lnkd');    // LinkedIn
 139 define ( 'NETWORK_XMPP',             'xmpp');    // XMPP
 140 define ( 'NETWORK_MYSPACE',          'mysp');    // MySpace
 141 define ( 'NETWORK_GPLUS',            'goog');    // Google+
 142 define ( 'NETWORK_PUMPIO',           'pump');    // pump.io
 143 define ( 'NETWORK_TWITTER',          'twit');    // Twitter
 144 define ( 'NETWORK_DIASPORA2',        'dspc');    // Diaspora connector
 145 define ( 'NETWORK_STATUSNET',        'stac');    // Statusnet connector
 146 define ( 'NETWORK_APPNET',           'apdn');    // app.net
 147
 148 define ( 'NETWORK_PHANTOM',          'unkn');    // Place holder
 149
 150 /**
 151  * These numbers are used in stored permissions
 152  * and existing allocations MUST NEVER BE CHANGED
 153  * OR RE-ASSIGNED! You may only add to them.
 154  */
 155
 156 $netgroup_ids = array(
 157         NETWORK_DFRN     => (-1),
 158         NETWORK_ZOT      => (-2),
 159         NETWORK_OSTATUS  => (-3),
 160         NETWORK_FEED     => (-4),
 161         NETWORK_DIASPORA => (-5),
 162         NETWORK_MAIL     => (-6),
 163         NETWORK_MAIL2    => (-7),
 164         NETWORK_FACEBOOK => (-8),
 165         NETWORK_LINKEDIN => (-9),
 166         NETWORK_XMPP     => (-10),
 167         NETWORK_MYSPACE  => (-11),
 168         NETWORK_GPLUS    => (-12),
 169         NETWORK_PUMPIO   => (-13),
 170         NETWORK_TWITTER  => (-14),
 171         NETWORK_DIASPORA2 => (-15),
 172         NETWORK_STATUSNET => (-16),
 173         NETWORK_APPNET => (-17),
 174
 175         NETWORK_PHANTOM  => (-127),
 176 );
 177
 178
 179 /**
 180  * Maximum number of "people who like (or don't like) this"  that we will list by name
 181  */
 182
 183 define ( 'MAX_LIKERS',    75);
 184
 185 /**
 186  * Communication timeout
 187  */
 188
 189 define ( 'ZCURL_TIMEOUT' , (-1));
 190
 191
 192 /**
 193  * email notification options
 194  */
 195
 196 define ( 'NOTIFY_INTRO',    0x0001 );
 197 define ( 'NOTIFY_CONFIRM',  0x0002 );
 198 define ( 'NOTIFY_WALL',     0x0004 );
 199 define ( 'NOTIFY_COMMENT',  0x0008 );
 200 define ( 'NOTIFY_MAIL',     0x0010 );
 201 define ( 'NOTIFY_SUGGEST',  0x0020 );
 202 define ( 'NOTIFY_PROFILE',  0x0040 );
 203 define ( 'NOTIFY_TAGSELF',  0x0080 );
 204 define ( 'NOTIFY_TAGSHARE', 0x0100 );
 205 define ( 'NOTIFY_POKE',     0x0200 );
 206 define ( 'NOTIFY_SHARE',    0x0400 );
 207
 208 define ( 'NOTIFY_SYSTEM',   0x8000 );
 209
 210
 211 /**
 212  * Tag/term types
 213  */
 214
 215 define ( 'TERM_UNKNOWN',   0 );
 216 define ( 'TERM_HASHTAG',   1 );
 217 define ( 'TERM_MENTION',   2 );
 218 define ( 'TERM_CATEGORY',  3 );
 219 define ( 'TERM_PCATEGORY', 4 );
 220 define ( 'TERM_FILE',      5 );
 221 define ( 'TERM_SAVEDSEARCH', 6 );
 222 define ( 'TERM_CONVERSATION', 7 );
 223
 224 define ( 'TERM_OBJ_POST',  1 );
 225 define ( 'TERM_OBJ_PHOTO', 2 );
 226
 227
 228
 229 /**
 230  * various namespaces we may need to parse
 231  */
 232
 233 define ( 'NAMESPACE_ZOT',             'http://purl.org/zot' );
 234 define ( 'NAMESPACE_DFRN' ,           'http://purl.org/macgirvin/dfrn/1.0' );
 235 define ( 'NAMESPACE_THREAD' ,         'http://purl.org/syndication/thread/1.0' );
 236 define ( 'NAMESPACE_TOMB' ,           'http://purl.org/atompub/tombstones/1.0' );
 237 define ( 'NAMESPACE_ACTIVITY',        'http://activitystrea.ms/spec/1.0/' );
 238 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
 239 define ( 'NAMESPACE_MEDIA',           'http://purl.org/syndication/atommedia' );
 240 define ( 'NAMESPACE_SALMON_ME',       'http://salmon-protocol.org/ns/magic-env' );
 241 define ( 'NAMESPACE_OSTATUSSUB',      'http://ostatus.org/schema/1.0/subscribe' );
 242 define ( 'NAMESPACE_GEORSS',          'http://www.georss.org/georss' );
 243 define ( 'NAMESPACE_POCO',            'http://portablecontacts.net/spec/1.0' );
 244 define ( 'NAMESPACE_FEED',            'http://schemas.google.com/g/2010#updates-from' );
 245 define ( 'NAMESPACE_OSTATUS',         'http://ostatus.org/schema/1.0' );
 246 define ( 'NAMESPACE_STATUSNET',       'http://status.net/schema/api/1/' );
 247 define ( 'NAMESPACE_ATOM1',           'http://www.w3.org/2005/Atom' );
 248 /**
 249  * activity stream defines
 250  */
 251
 252 define ( 'ACTIVITY_LIKE',        NAMESPACE_ACTIVITY_SCHEMA . 'like' );
 253 define ( 'ACTIVITY_DISLIKE',     NAMESPACE_DFRN            . '/dislike' );
 254 define ( 'ACTIVITY_OBJ_HEART',   NAMESPACE_DFRN            . '/heart' );
 255
 256 define ( 'ACTIVITY_FRIEND',      NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
 257 define ( 'ACTIVITY_REQ_FRIEND',  NAMESPACE_ACTIVITY_SCHEMA . 'request-friend' );
 258 define ( 'ACTIVITY_UNFRIEND',    NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend' );
 259 define ( 'ACTIVITY_FOLLOW',      NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
 260 define ( 'ACTIVITY_UNFOLLOW',    NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
 261 define ( 'ACTIVITY_JOIN',        NAMESPACE_ACTIVITY_SCHEMA . 'join' );
 262
 263 define ( 'ACTIVITY_POST',        NAMESPACE_ACTIVITY_SCHEMA . 'post' );
 264 define ( 'ACTIVITY_UPDATE',      NAMESPACE_ACTIVITY_SCHEMA . 'update' );
 265 define ( 'ACTIVITY_TAG',         NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
 266 define ( 'ACTIVITY_FAVORITE',    NAMESPACE_ACTIVITY_SCHEMA . 'favorite' );
 267
 268 define ( 'ACTIVITY_POKE',        NAMESPACE_ZOT . '/activity/poke' );
 269 define ( 'ACTIVITY_MOOD',        NAMESPACE_ZOT . '/activity/mood' );
 270
 271 define ( 'ACTIVITY_OBJ_BOOKMARK', NAMESPACE_ACTIVITY_SCHEMA . 'bookmark' );
 272 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
 273 define ( 'ACTIVITY_OBJ_NOTE',    NAMESPACE_ACTIVITY_SCHEMA . 'note' );
 274 define ( 'ACTIVITY_OBJ_PERSON',  NAMESPACE_ACTIVITY_SCHEMA . 'person' );
 275 define ( 'ACTIVITY_OBJ_IMAGE',   NAMESPACE_ACTIVITY_SCHEMA . 'image' );
 276 define ( 'ACTIVITY_OBJ_PHOTO',   NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
 277 define ( 'ACTIVITY_OBJ_VIDEO',   NAMESPACE_ACTIVITY_SCHEMA . 'video' );
 278 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
 279 define ( 'ACTIVITY_OBJ_ALBUM',   NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
 280 define ( 'ACTIVITY_OBJ_EVENT',   NAMESPACE_ACTIVITY_SCHEMA . 'event' );
 281 define ( 'ACTIVITY_OBJ_GROUP',   NAMESPACE_ACTIVITY_SCHEMA . 'group' );
 282 define ( 'ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN            . '/tagterm' );
 283 define ( 'ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN            . '/profile' );
 284
 285 /**
 286  * item weight for query ordering
 287  */
 288
 289 define ( 'GRAVITY_PARENT',       0);
 290 define ( 'GRAVITY_LIKE',         3);
 291 define ( 'GRAVITY_COMMENT',      6);
 292
 293 /**
 294  *
 295  * Reverse the effect of magic_quotes_gpc if it is enabled.
 296  * Please disable magic_quotes_gpc so we don't have to do this.
 297  * See http://php.net/manual/en/security.magicquotes.disabling.php
 298  *
 299  */
 300
 301 function startup() {
 302
 303         error_reporting(E_ERROR | E_WARNING | E_PARSE);
 304
 305         set_time_limit(0);
 306
 307         // This has to be quite large to deal with embedded private photos
 308         ini_set('pcre.backtrack_limit', 500000);
 309
 310
 311         if (get_magic_quotes_gpc()) {
 312                 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
 313                 while (list($key, $val) = each($process)) {
 314                         foreach ($val as $k => $v) {
 315                                 unset($process[$key][$k]);
 316                                 if (is_array($v)) {
 317                                         $process[$key][stripslashes($k)] = $v;
 318                                         $process[] = &$process[$key][stripslashes($k)];
 319                                 } else {
 320                                         $process[$key][stripslashes($k)] = stripslashes($v);
 321                                 }
 322                         }
 323                 }
 324                 unset($process);
 325         }
 326
 327 }
 328
 329 /**
 330  *
 331  * class: App
 332  *
 333  * Our main application structure for the life of this page
 334  * Primarily deals with the URL that got us here
 335  * and tries to make some sense of it, and
 336  * stores our page contents and config storage
 337  * and anything else that might need to be passed around
 338  * before we spit the page out.
 339  *
 340  */
 341
 342 if(! class_exists('App')) {
 343         class App {
 344
 345                 public  $module_loaded = false;
 346                 public  $query_string;
 347                 public  $config;
 348                 public  $page;
 349                 public  $profile;
 350                 public  $user;
 351                 public  $cid;
 352                 public  $contact;
 353                 public  $contacts;
 354                 public  $page_contact;
 355                 public  $content;
 356                 public  $data = array();
 357                 public  $error = false;
 358                 public  $cmd;
 359                 public  $argv;
 360                 public  $argc;
 361                 public  $module;
 362                 public  $pager;
 363                 public  $strings;
 364                 public  $path;
 365                 public  $hooks;
 366                 public  $timezone;
 367                 public  $interactive = true;
 368                 public  $plugins;
 369                 public  $apps = array();
 370                 public  $identities;
 371                 public  $is_mobile;
 372                 public  $is_tablet;
 373                 public  $performance = array();
 374
 375                 public $nav_sel;
 376
 377                 public $category;
 378
 379
 380                 // Allow themes to control internal parameters
 381                 // by changing App values in theme.php
 382
 383                 public  $sourcename = '';
 384                 public  $videowidth = 425;
 385                 public  $videoheight = 350;
 386                 public  $force_max_items = 0;
 387                 public  $theme_thread_allow = true;
 388
 389                 // An array for all theme-controllable parameters
 390                 // Mostly unimplemented yet. Only options 'stylesheet' and
 391                 // beyond are used.
 392
 393                 public  $theme = array(
 394                         'sourcename' => '',
 395                         'videowidth' => 425,
 396                         'videoheight' => 350,
 397                         'force_max_items' => 0,
 398                         'thread_allow' => true,
 399                         'stylesheet' => '',
 400                         'template_engine' => 'smarty3',
 401                 );
 402
 403                 // array of registered template engines ('name'=>'class name')
 404                 public $template_engines = array();
 405                 // array of instanced template engines ('name'=>'instance')
 406                 public $template_engine_instance = array();
 407
 408                 // Used for reducing load to the ostatus completion
 409                 public $last_ostatus_conversation_url;
 410
 411                 private $ldelim = array(
 412                         'internal' => '',
 413                         'smarty3' => '{{'
 414                 );
 415                 private $rdelim = array(
 416                         'internal' => '',
 417                         'smarty3' => '}}'
 418                 );
 419
 420                 private $scheme;
 421                 private $hostname;
 422                 private $baseurl;
 423                 private $db;
 424
 425                 private $curl_code;
 426                 private $curl_content_type;
 427                 private $curl_headers;
 428
 429                 private $cached_profile_image;
 430                 private $cached_profile_picdate;
 431
 432                 function __construct() {
 433
 434                         global $default_timezone, $argv, $argc;
 435
 436                         $hostname = "";
 437
 438                         if (file_exists(".htpreconfig.php"))
 439                                 @include(".htpreconfig.php");
 440
 441                         $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
 442
 443                         date_default_timezone_set($this->timezone);
 444
 445                         $this->performance["start"] = microtime(true);
 446                         $this->performance["database"] = 0;
 447                         $this->performance["network"] = 0;
 448                         $this->performance["file"] = 0;
 449                         $this->performance["rendering"] = 0;
 450                         $this->performance["parser"] = 0;
 451                         $this->performance["marktime"] = 0;
 452                         $this->performance["markstart"] = microtime(true);
 453
 454                         $this->config = array();
 455                         $this->page = array();
 456                         $this->pager= array();
 457
 458                         $this->query_string = '';
 459
 460                         startup();
 461
 462                         set_include_path(
 463                                         'include' . PATH_SEPARATOR
 464                                         . 'library' . PATH_SEPARATOR
 465                                         . 'library/phpsec' . PATH_SEPARATOR
 466                                         . 'library/langdet' . PATH_SEPARATOR
 467                                         . '.' );
 468
 469
 470                         $this->scheme = 'http';
 471                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
 472                                 $this->scheme = 'https';
 473                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
 474                                 $this->scheme = 'https';
 475
 476                         if(x($_SERVER,'SERVER_NAME')) {
 477                                 $this->hostname = $_SERVER['SERVER_NAME'];
 478
 479                                 // See bug 437 - this didn't work so disabling it
 480                                 //if(stristr($this->hostname,'xn--')) {
 481                                         // PHP or webserver may have converted idn to punycode, so
 482                                         // convert punycode back to utf-8
 483                                 //      require_once('library/simplepie/idn/idna_convert.class.php');
 484                                 //      $x = new idna_convert();
 485                                 //      $this->hostname = $x->decode($_SERVER['SERVER_NAME']);
 486                                 //}
 487
 488                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
 489                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
 490                                 /**
 491                                  * Figure out if we are running at the top of a domain
 492                                  * or in a sub-directory and adjust accordingly
 493                                  */
 494
 495                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
 496                                 if(isset($path) && strlen($path) && ($path != $this->path))
 497                                         $this->path = $path;
 498                         }
 499
 500                         if ($hostname != "")
 501                                 $this->hostname = $hostname;
 502
 503                         if (is_array($argv) && $argc>1 && substr(end($argv), 0, 4)=="http" ) {
 504                                 $this->set_baseurl(array_pop($argv) );
 505                                 $argc --;
 506                         }
 507
 508                         set_include_path("include/$this->hostname" . PATH_SEPARATOR . get_include_path());
 509
 510                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
 511                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
 512                                 // removing trailing / - maybe a nginx problem
 513                                 if (substr($this->query_string, 0, 1) == "/")
 514                                         $this->query_string = substr($this->query_string, 1);
 515                         }
 516                         if(x($_GET,'q'))
 517                                 $this->cmd = trim($_GET['q'],'/\\');
 518
 519                         // unix style "homedir"
 520
 521                         if(substr($this->cmd,0,1) === '~')
 522                                 $this->cmd = 'profile/' . substr($this->cmd,1);
 523
 524                         // Diaspora style profile url
 525
 526                         if(substr($this->cmd,0,2) === 'u/')
 527                                 $this->cmd = 'profile/' . substr($this->cmd,2);
 528
 529                         /**
 530                          *
 531                          * Break the URL path into C style argc/argv style arguments for our
 532                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
 533                          * will be 3 (integer) and $this->argv will contain:
 534                          *   [0] => 'module'
 535                          *   [1] => 'arg1'
 536                          *   [2] => 'arg2'
 537                          *
 538                          *
 539                          * There will always be one argument. If provided a naked domain
 540                          * URL, $this->argv[0] is set to "home".
 541                          *
 542                          */
 543
 544                         $this->argv = explode('/',$this->cmd);
 545                         $this->argc = count($this->argv);
 546                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
 547                                 $this->module = str_replace(".", "_", $this->argv[0]);
 548                                 $this->module = str_replace("-", "_", $this->module);
 549                         }
 550                         else {
 551                                 $this->argc = 1;
 552                                 $this->argv = array('home');
 553                                 $this->module = 'home';
 554                         }
 555
 556                         /**
 557                          * See if there is any page number information, and initialise
 558                          * pagination
 559                          */
 560
 561                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
 562                         $this->pager['itemspage'] = 50;
 563                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 564                         if($this->pager['start'] < 0)
 565                                 $this->pager['start'] = 0;
 566                         $this->pager['total'] = 0;
 567
 568                         /**
 569                          * Detect mobile devices
 570                          */
 571
 572                         $mobile_detect = new Mobile_Detect();
 573                         $this->is_mobile = $mobile_detect->isMobile();
 574                         $this->is_tablet = $mobile_detect->isTablet();
 575
 576                         /**
 577                          * register template engines
 578                          */
 579                         $dc = get_declared_classes();
 580                         foreach ($dc as $k) {
 581                                 if (in_array("ITemplateEngine", class_implements($k))){
 582                                         $this->register_template_engine($k);
 583                                 }
 584                         }
 585
 586                 }
 587
 588                 function get_basepath() {
 589
 590                         $basepath = get_config("system", "basepath");
 591
 592                         if ($basepath == "")
 593                                 $basepath = $_SERVER["DOCUMENT_ROOT"];
 594
 595                         if ($basepath == "")
 596                                 $basepath = $_SERVER["PWD"];
 597
 598                         return($basepath);
 599                 }
 600
 601                 function get_baseurl($ssl = false) {
 602
 603                         $scheme = $this->scheme;
 604
 605                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
 606                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
 607                                         $scheme = 'https';
 608
 609                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
 610                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
 611
 612                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
 613                                         if($ssl)
 614                                                 $scheme = 'https';
 615                                         else
 616                                                 $scheme = 'http';
 617                                 }
 618                         }
 619
 620                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
 621                         return $this->baseurl;
 622                 }
 623
 624                 function set_baseurl($url) {
 625                         $parsed = @parse_url($url);
 626
 627                         $this->baseurl = $url;
 628
 629                         if($parsed) {
 630                                 $this->scheme = $parsed['scheme'];
 631
 632                                 $hostname = $parsed['host'];
 633                                 if(x($parsed,'port'))
 634                                         $hostname .= ':' . $parsed['port'];
 635                                 if(x($parsed,'path'))
 636                                         $this->path = trim($parsed['path'],'\\/');
 637
 638                                 if (file_exists(".htpreconfig.php"))
 639                                         @include(".htpreconfig.php");
 640
 641                                 $this->hostname = $hostname;
 642                         }
 643
 644                 }
 645
 646                 function get_hostname() {
 647                         return $this->hostname;
 648                 }
 649
 650                 function set_hostname($h) {
 651                         $this->hostname = $h;
 652                 }
 653
 654                 function set_path($p) {
 655                         $this->path = trim(trim($p),'/');
 656                 }
 657
 658                 function get_path() {
 659                         return $this->path;
 660                 }
 661
 662                 function set_pager_total($n) {
 663                         $this->pager['total'] = intval($n);
 664                 }
 665
 666                 function set_pager_itemspage($n) {
 667                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
 668                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 669                 }
 670
 671                 function set_pager_page($n) {
 672                         $this->pager['page'] = $n;
 673                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 674                 }
 675
 676                 function init_pagehead() {
 677                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
 678                         if($interval < 10000)
 679                                 $interval = 40000;
 680
 681                         $this->page['title'] = $this->config['sitename'];
 682
 683                         /* put the head template at the beginning of page['htmlhead']
 684                          * since the code added by the modules frequently depends on it
 685                          * being first
 686                          */
 687                         if(!isset($this->page['htmlhead']))
 688                                 $this->page['htmlhead'] = '';
 689
 690                         // If we're using Smarty, then doing replace_macros() will replace
 691                         // any unrecognized variables with a blank string. Since we delay
 692                         // replacing $stylesheet until later, we need to replace it now
 693                         // with another variable name
 694                         if($this->theme['template_engine'] === 'smarty3')
 695                                 $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
 696                         else
 697                                 $stylesheet = '$stylesheet';
 698
 699                         $shortcut_icon = get_config("system", "shortcut_icon");
 700                         if ($shortcut_icon == "")
 701                                 $shortcut_icon = $this->get_baseurl()."/images/friendica-32.png";
 702
 703                         $touch_icon = get_config("system", "touch_icon");
 704                         if ($touch_icon == "")
 705                                 $touch_icon = $this->get_baseurl()."/images/friendica-128.png";
 706
 707                         $tpl = get_markup_template('head.tpl');
 708                         $this->page['htmlhead'] = replace_macros($tpl,array(
 709                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
 710                                 '$local_user' => local_user(),
 711                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
 712                                 '$delitem' => t('Delete this item?'),
 713                                 '$comment' => t('Comment'),
 714                                 '$showmore' => t('show more'),
 715                                 '$showfewer' => t('show fewer'),
 716                                 '$update_interval' => $interval,
 717                                 '$shortcut_icon' => $shortcut_icon,
 718                                 '$touch_icon' => $touch_icon,
 719                                 '$stylesheet' => $stylesheet
 720                         )) . $this->page['htmlhead'];
 721                 }
 722
 723                 function init_page_end() {
 724                         if(!isset($this->page['end']))
 725                                 $this->page['end'] = '';
 726                         $tpl = get_markup_template('end.tpl');
 727                         $this->page['end'] = replace_macros($tpl,array(
 728                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
 729                         )) . $this->page['end'];
 730                 }
 731
 732                 function set_curl_code($code) {
 733                         $this->curl_code = $code;
 734                 }
 735
 736                 function get_curl_code() {
 737                         return $this->curl_code;
 738                 }
 739
 740                 function set_curl_content_type($content_type) {
 741                         $this->curl_content_type = $content_type;
 742                 }
 743
 744                 function get_curl_content_type() {
 745                         return $this->curl_content_type;
 746                 }
 747
 748                 function set_curl_headers($headers) {
 749                         $this->curl_headers = $headers;
 750                 }
 751
 752                 function get_curl_headers() {
 753                         return $this->curl_headers;
 754                 }
 755
 756                 function get_cached_avatar_image($avatar_image){
 757                         if($this->cached_profile_image[$avatar_image])
 758                                 return $this->cached_profile_image[$avatar_image];
 759
 760                         $path_parts = explode("/",$avatar_image);
 761                         $common_filename = $path_parts[count($path_parts)-1];
 762
 763                         if($this->cached_profile_picdate[$common_filename]){
 764                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 765                         } else {
 766                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like '%%/%s'",
 767                                         $common_filename);
 768                                 if(! count($r)){
 769                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
 770                                 } else {
 771                                         $this->cached_profile_picdate[$common_filename] = "?rev=" . urlencode($r[0]['picdate']);
 772                                         $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 773                                 }
 774                         }
 775                         return $this->cached_profile_image[$avatar_image];
 776                 }
 777
 778
 779                 /**
 780                  * register template engine class
 781                  * if $name is "", is used class static property $class::$name
 782                  * @param string $class
 783                  * @param string $name
 784                  */
 785                 function register_template_engine($class, $name = '') {
 786                         if ($name===""){
 787                                 $v = get_class_vars( $class );
 788                                 if(x($v,"name")) $name = $v['name'];
 789                         }
 790                         if ($name===""){
 791                                 echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
 792                                 killme();
 793                         }
 794                         $this->template_engines[$name] = $class;
 795                 }
 796
 797                 /**
 798                  * return template engine instance. If $name is not defined,
 799                  * return engine defined by theme, or default
 800                  *
 801                  * @param strin $name Template engine name
 802                  * @return object Template Engine instance
 803                  */
 804                 function template_engine($name = ''){
 805                         if ($name!=="") {
 806                                 $template_engine = $name;
 807                         } else {
 808                                 $template_engine = 'smarty3';
 809                                 if (x($this->theme, 'template_engine')) {
 810                                         $template_engine = $this->theme['template_engine'];
 811                                 }
 812                         }
 813
 814                         if (isset($this->template_engines[$template_engine])){
 815                                 if(isset($this->template_engine_instance[$template_engine])){
 816                                         return $this->template_engine_instance[$template_engine];
 817                                 } else {
 818                                         $class = $this->template_engines[$template_engine];
 819                                         $obj = new $class;
 820                                         $this->template_engine_instance[$template_engine] = $obj;
 821                                         return $obj;
 822                                 }
 823                         }
 824
 825                         echo "template engine <tt>$template_engine</tt> is not registered!\n"; killme();
 826                 }
 827
 828                 function get_template_engine() {
 829                         return $this->theme['template_engine'];
 830                 }
 831
 832                 function set_template_engine($engine = 'smarty3') {
 833                         $this->theme['template_engine'] = $engine;
 834                         /*
 835                         $this->theme['template_engine'] = 'smarty3';
 836
 837                         switch($engine) {
 838                                 case 'smarty3':
 839                                         if(is_writable('view/smarty3/'))
 840                                                 $this->theme['template_engine'] = 'smarty3';
 841                                         break;
 842                                 default:
 843                                         break;
 844                         }
 845                         */
 846                 }
 847
 848                 function get_template_ldelim($engine = 'smarty3') {
 849                         return $this->ldelim[$engine];
 850                 }
 851
 852                 function get_template_rdelim($engine = 'smarty3') {
 853                         return $this->rdelim[$engine];
 854                 }
 855
 856                 function save_timestamp($stamp, $value) {
 857                         $duration = (float)(microtime(true)-$stamp);
 858
 859                         $this->performance[$value] += (float)$duration;
 860                         $this->performance["marktime"] += (float)$duration;
 861                 }
 862
 863                 function mark_timestamp($mark) {
 864                         //$this->performance["markstart"] -= microtime(true) - $this->performance["marktime"];
 865                         $this->performance["markstart"] = microtime(true) - $this->performance["markstart"] - $this->performance["marktime"];
 866                 }
 867
 868         }
 869 }
 870
 871 // retrieve the App structure
 872 // useful in functions which require it but don't get it passed to them
 873
 874 if(! function_exists('get_app')) {
 875         function get_app() {
 876                 global $a;
 877                 return $a;
 878         }
 879 };
 880
 881
 882 // Multi-purpose function to check variable state.
 883 // Usage: x($var) or $x($array,'key')
 884 // returns false if variable/key is not set
 885 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
 886 // e.g. x('') or x(0) returns 0;
 887
 888 if(! function_exists('x')) {
 889         function x($s,$k = NULL) {
 890                 if($k != NULL) {
 891                         if((is_array($s)) && (array_key_exists($k,$s))) {
 892                                 if($s[$k])
 893                                         return (int) 1;
 894                                 return (int) 0;
 895                 }
 896                         return false;
 897                 }
 898                 else {
 899                         if(isset($s)) {
 900                                 if($s) {
 901                                         return (int) 1;
 902                                 }
 903                                 return (int) 0;
 904                         }
 905                         return false;
 906                 }
 907         }
 908 }
 909
 910 // called from db initialisation if db is dead.
 911
 912 if(! function_exists('system_unavailable')) {
 913         function system_unavailable() {
 914                 include('system_unavailable.php');
 915                 system_down();
 916                 killme();
 917         }
 918 }
 919
 920
 921
 922 function clean_urls() {
 923         global $a;
 924         //      if($a->config['system']['clean_urls'])
 925         return true;
 926         //      return false;
 927 }
 928
 929 function z_path() {
 930         global $a;
 931         $base = $a->get_baseurl();
 932         if(! clean_urls())
 933                 $base .= '/?q=';
 934         return $base;
 935 }
 936
 937 function z_root() {
 938         global $a;
 939         return $a->get_baseurl();
 940 }
 941
 942 function absurl($path) {
 943         if(strpos($path,'/') === 0)
 944                 return z_path() . $path;
 945         return $path;
 946 }
 947
 948 function is_ajax() {
 949         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
 950 }
 951
 952 function check_db() {
 953
 954         $build = get_config('system','build');
 955         if(! x($build)) {
 956                 set_config('system','build',DB_UPDATE_VERSION);
 957                 $build = DB_UPDATE_VERSION;
 958         }
 959         if($build != DB_UPDATE_VERSION)
 960                 proc_run('php', 'include/dbupdate.php');
 961
 962 }
 963
 964
 965
 966
 967 // Sets the base url for use in cmdline programs which don't have
 968 // $_SERVER variables
 969
 970 if(! function_exists('check_url')) {
 971         function check_url(&$a) {
 972
 973                 $url = get_config('system','url');
 974
 975                 // if the url isn't set or the stored url is radically different
 976                 // than the currently visited url, store the current value accordingly.
 977                 // "Radically different" ignores common variations such as http vs https
 978                 // and www.example.com vs example.com.
 979                 // We will only change the url to an ip address if there is no existing setting
 980
 981                 if(! x($url))
 982                         $url = set_config('system','url',$a->get_baseurl());
 983                 if((! link_compare($url,$a->get_baseurl())) && (! preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/",$a->get_hostname)))
 984                         $url = set_config('system','url',$a->get_baseurl());
 985
 986                 return;
 987         }
 988 }
 989
 990
 991 // Automatic database updates
 992
 993 if(! function_exists('update_db')) {
 994         function update_db(&$a) {
 995
 996                 $build = get_config('system','build');
 997                 if(! x($build))
 998                         $build = set_config('system','build',DB_UPDATE_VERSION);
 999
1000                 if($build != DB_UPDATE_VERSION) {
1001                         $stored = intval($build);
1002                         $current = intval(DB_UPDATE_VERSION);
1003                         if(($stored < $current) && file_exists('update.php')) {
1004
1005                                 load_config('database');
1006
1007                                 // We're reporting a different version than what is currently installed.
1008                                 // Run any existing update scripts to bring the database up to current.
1009
1010                                 require_once('update.php');
1011
1012                                 // make sure that boot.php and update.php are the same release, we might be
1013                                 // updating right this very second and the correct version of the update.php
1014                                 // file may not be here yet. This can happen on a very busy site.
1015
1016                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
1017
1018                                         // Compare the current structure with the defined structure
1019                                         require_once("include/dbstructure.php");
1020                                         update_structure(false, true);
1021
1022                                         for($x = $stored; $x < $current; $x ++) {
1023                                                 if(function_exists('update_' . $x)) {
1024
1025                                                         // There could be a lot of processes running or about to run.
1026                                                         // We want exactly one process to run the update command.
1027                                                         // So store the fact that we're taking responsibility
1028                                                         // after first checking to see if somebody else already has.
1029
1030                                                         // If the update fails or times-out completely you may need to
1031                                                         // delete the config entry to try again.
1032
1033                                                         $t = get_config('database','update_' . $x);
1034                                                         if($t !== false)
1035                                                                 break;
1036                                                         set_config('database','update_' . $x, time());
1037
1038                                                         // call the specific update
1039
1040                                                         $func = 'update_' . $x;
1041                                                         $retval = $func();
1042                                                         if($retval) {
1043                                                                 //send the administrator an e-mail
1044                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
1045                                                                 $email_msg = replace_macros($email_tpl, array(
1046                                                                         '$sitename' => $a->config['sitename'],
1047                                                                         '$siteurl' =>  $a->get_baseurl(),
1048                                                                         '$update' => $x,
1049                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
1050                                                                 ));
1051                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
1052                                                                 require_once('include/email.php');
1053                                                                 $subject = email_header_encode($subject,'UTF-8');
1054                                                                 mail($a->config['admin_email'], $subject, $email_msg,
1055                                                                         'From: ' . 'Administrator' . '@' . $_SERVER['SERVER_NAME'] . "\n"
1056                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
1057                                                                         . 'Content-transfer-encoding: 8bit' );
1058                                                                 //try the logger
1059                                                                 logger('CRITICAL: Update Failed: '. $x);
1060                                                                 break;
1061                                                         }
1062                                                         else {
1063                                                                 set_config('database','update_' . $x, 'success');
1064                                                                 set_config('system','build', $x + 1);
1065                                                         }
1066                                                 }
1067                                         }
1068                                 }
1069                         }
1070                 }
1071
1072                 return;
1073         }
1074 }
1075
1076
1077 if(! function_exists('check_plugins')) {
1078         function check_plugins(&$a) {
1079
1080                 /**
1081                  *
1082                  * Synchronise plugins:
1083                  *
1084                  * $a->config['system']['addon'] contains a comma-separated list of names
1085                  * of plugins/addons which are used on this system.
1086                  * Go through the database list of already installed addons, and if we have
1087                  * an entry, but it isn't in the config list, call the uninstall procedure
1088                  * and mark it uninstalled in the database (for now we'll remove it).
1089                  * Then go through the config list and if we have a plugin that isn't installed,
1090                  * call the install procedure and add it to the database.
1091                  *
1092                  */
1093
1094                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
1095                 if(count($r))
1096                         $installed = $r;
1097                 else
1098                         $installed = array();
1099
1100                 $plugins = get_config('system','addon');
1101                 $plugins_arr = array();
1102
1103                 if($plugins)
1104                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
1105
1106                 $a->plugins = $plugins_arr;
1107
1108                 $installed_arr = array();
1109
1110                 if(count($installed)) {
1111                         foreach($installed as $i) {
1112                                 if(! in_array($i['name'],$plugins_arr)) {
1113                                         uninstall_plugin($i['name']);
1114                                 }
1115                                 else {
1116                                         $installed_arr[] = $i['name'];
1117                                 }
1118                         }
1119                 }
1120
1121                 if(count($plugins_arr)) {
1122                         foreach($plugins_arr as $p) {
1123                                 if(! in_array($p,$installed_arr)) {
1124                                         install_plugin($p);
1125                                 }
1126                         }
1127                 }
1128
1129
1130                 load_hooks();
1131
1132                 return;
1133         }
1134 }
1135
1136 function get_guid($size=16) {
1137         $exists = true; // assume by default that we don't have a unique guid
1138         do {
1139                 $prefix = "";
1140                 while (strlen($prefix) < ($size - 13))
1141                         $prefix .= mt_rand();
1142
1143                 $s = substr(uniqid($prefix), -$size);
1144
1145                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
1146                 if(! count($r))
1147                         $exists = false;
1148         } while($exists);
1149         q("insert into guid (guid) values ('%s') ", dbesc($s));
1150         return $s;
1151 }
1152
1153 /*function get_guid($size=16) {
1154         $exists = true; // assume by default that we don't have a unique guid
1155         do {
1156                 $s = random_string($size);
1157                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
1158                 if(! count($r))
1159                         $exists = false;
1160         } while($exists);
1161         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
1162         return $s;
1163 }*/
1164
1165
1166 // wrapper for adding a login box. If $register == true provide a registration
1167 // link. This will most always depend on the value of $a->config['register_policy'].
1168 // returns the complete html for inserting into the page
1169
1170 if(! function_exists('login')) {
1171         function login($register = false, $hiddens=false) {
1172                 $a = get_app();
1173                 $o = "";
1174                 $reg = false;
1175                 if ($register) {
1176                         $reg = array(
1177                                 'title' => t('Create a New Account'),
1178                                 'desc' => t('Register')
1179                         );
1180                 }
1181
1182                 $noid = get_config('system','no_openid');
1183
1184                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
1185
1186                 if(local_user()) {
1187                         $tpl = get_markup_template("logout.tpl");
1188                 }
1189                 else {
1190                         $a->page['htmlhead'] .= replace_macros(get_markup_template("login_head.tpl"),array(
1191                                 '$baseurl'              => $a->get_baseurl(true)
1192                         ));
1193
1194                         $tpl = get_markup_template("login.tpl");
1195                         $_SESSION['return_url'] = $a->query_string;
1196                         $a->module = 'login';
1197                 }
1198
1199                 $o .= replace_macros($tpl, array(
1200
1201                         '$dest_url'     => $dest_url,
1202                         '$logout'       => t('Logout'),
1203                         '$login'        => t('Login'),
1204
1205                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
1206                         '$lpassword'    => array('password', t('Password: '), '', ''),
1207                         '$lremember'    => array('remember', t('Remember me'), 0,  ''),
1208
1209                         '$openid'               => !$noid,
1210                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
1211
1212                         '$hiddens'      => $hiddens,
1213
1214                         '$register'     => $reg,
1215
1216                         '$lostpass'     => t('Forgot your password?'),
1217                         '$lostlink'     => t('Password Reset'),
1218
1219                         '$tostitle'     => t('Website Terms of Service'),
1220                         '$toslink'      => t('terms of service'),
1221
1222                         '$privacytitle' => t('Website Privacy Policy'),
1223                         '$privacylink'  => t('privacy policy'),
1224
1225                 ));
1226
1227                 call_hooks('login_hook',$o);
1228
1229                 return $o;
1230         }
1231 }
1232
1233 // Used to end the current process, after saving session state.
1234
1235 if(! function_exists('killme')) {
1236         function killme() {
1237                 session_write_close();
1238                 exit;
1239         }
1240 }
1241
1242 // redirect to another URL and terminate this process.
1243
1244 if(! function_exists('goaway')) {
1245         function goaway($s) {
1246                 header("Location: $s");
1247                 killme();
1248         }
1249 }
1250
1251
1252 // Returns the uid of locally logged in user or false.
1253
1254 if(! function_exists('local_user')) {
1255         function local_user() {
1256                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1257                         return intval($_SESSION['uid']);
1258                 return false;
1259         }
1260 }
1261
1262 // Returns contact id of authenticated site visitor or false
1263
1264 if(! function_exists('remote_user')) {
1265         function remote_user() {
1266                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1267                         return intval($_SESSION['visitor_id']);
1268                 return false;
1269         }
1270 }
1271
1272 // contents of $s are displayed prominently on the page the next time
1273 // a page is loaded. Usually used for errors or alerts.
1274
1275 if(! function_exists('notice')) {
1276         /**
1277          * Show an error message to user.
1278          *
1279          * This function save text in session, to be shown to the user at next page load
1280          *
1281          * @param string $s - Text of notice
1282          */
1283         function notice($s) {
1284                 $a = get_app();
1285                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
1286                 if($a->interactive)
1287                         $_SESSION['sysmsg'][] = $s;
1288         }
1289 }
1290 if(! function_exists('info')) {
1291         /**
1292          * Show an info message to user.
1293          *
1294          * This function save text in session, to be shown to the user at next page load
1295          *
1296          * @param string $s - Text of notice
1297          */
1298         function info($s) {
1299                 $a = get_app();
1300
1301                 if (local_user() AND get_pconfig(local_user(),'system','ignore_info'))
1302                         return;
1303
1304                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
1305                 if($a->interactive)
1306                         $_SESSION['sysmsg_info'][] = $s;
1307         }
1308 }
1309
1310
1311 // wrapper around config to limit the text length of an incoming message
1312
1313 if(! function_exists('get_max_import_size')) {
1314         function get_max_import_size() {
1315                 global $a;
1316                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1317         }
1318 }
1319
1320
1321
1322 /**
1323  *
1324  * Function : profile_load
1325  * @parameter App    $a
1326  * @parameter string $nickname
1327  * @parameter int    $profile
1328  *
1329  * Summary: Loads a profile into the page sidebar.
1330  * The function requires a writeable copy of the main App structure, and the nickname
1331  * of a registered local account.
1332  *
1333  * If the viewer is an authenticated remote viewer, the profile displayed is the
1334  * one that has been configured for his/her viewing in the Contact manager.
1335  * Passing a non-zero profile ID can also allow a preview of a selected profile
1336  * by the owner.
1337  *
1338  * Profile information is placed in the App structure for later retrieval.
1339  * Honours the owner's chosen theme for display.
1340  *
1341  * IMPORTANT: Should only be run in the _init() functions of a module. That ensures that
1342  * the theme is chosen before the _init() function of a theme is run, which will usually
1343  * load a lot of theme-specific content
1344  *
1345  */
1346
1347 if(! function_exists('profile_load')) {
1348         function profile_load(&$a, $nickname, $profile = 0) {
1349
1350                 $user = q("select uid from user where nickname = '%s' limit 1",
1351                         dbesc($nickname)
1352                 );
1353
1354                 if(! ($user && count($user))) {
1355                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1356                         notice( t('Requested account is not available.') . EOL );
1357                         $a->error = 404;
1358                         return;
1359                 }
1360
1361                 if(remote_user() && count($_SESSION['remote'])) {
1362                         foreach($_SESSION['remote'] as $visitor) {
1363                                 if($visitor['uid'] == $user[0]['uid']) {
1364                                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1365                                                 intval($visitor['cid'])
1366                                         );
1367                                         if(count($r))
1368                                                 $profile = $r[0]['profile-id'];
1369                                         break;
1370                                 }
1371                         }
1372                 }
1373
1374                 $r = null;
1375
1376                 if($profile) {
1377                         $profile_int = intval($profile);
1378                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1379                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
1380                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1381                                         dbesc($nickname),
1382                                         intval($profile_int)
1383                         );
1384                 }
1385                 if((! $r) && (!  count($r))) {
1386                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1387                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
1388                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1389                                         dbesc($nickname)
1390                         );
1391                 }
1392
1393                 if(($r === false) || (! count($r))) {
1394                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1395                         notice( t('Requested profile is not available.') . EOL );
1396                         $a->error = 404;
1397                         return;
1398                 }
1399
1400                 // fetch user tags if this isn't the default profile
1401
1402                 if(! $r[0]['is-default']) {
1403                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1404                                         intval($r[0]['profile_uid'])
1405                         );
1406                         if($x && count($x))
1407                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1408                 }
1409
1410                 $a->profile = $r[0];
1411
1412                 $a->profile['mobile-theme'] = get_pconfig($a->profile['profile_uid'], 'system', 'mobile_theme');
1413
1414
1415                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1416                 $_SESSION['theme'] = $a->profile['theme'];
1417                 $_SESSION['mobile-theme'] = $a->profile['mobile-theme'];
1418
1419                 /**
1420                  * load/reload current theme info
1421                  */
1422
1423                 $a->set_template_engine(); // reset the template engine to the default in case the user's theme doesn't specify one
1424
1425                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1426                 if (file_exists($theme_info_file)){
1427                         require_once($theme_info_file);
1428                 }
1429
1430                 if(! (x($a->page,'aside')))
1431                         $a->page['aside'] = '';
1432
1433                 if(local_user() && local_user() == $a->profile['uid']) {
1434                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1435                                 '$editprofile' => t('Edit profile'),
1436                                 '$profid' => $a->profile['id']
1437                         ));
1438                 }
1439
1440                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1441
1442                 $a->page['aside'] .= profile_sidebar($a->profile, $block);
1443
1444                 /*if(! $block)
1445                  $a->page['aside'] .= contact_block();*/
1446
1447                 return;
1448         }
1449 }
1450
1451
1452 /**
1453  *
1454  * Function: profile_sidebar
1455  *
1456  * Formats a profile for display in the sidebar.
1457  * It is very difficult to templatise the HTML completely
1458  * because of all the conditional logic.
1459  *
1460  * @parameter: array $profile
1461  *
1462  * Returns HTML string stuitable for sidebar inclusion
1463  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1464  *
1465  */
1466
1467
1468 if(! function_exists('profile_sidebar')) {
1469         function profile_sidebar($profile, $block = 0) {
1470
1471                 $a = get_app();
1472
1473                 $o = '';
1474                 $location = false;
1475                 $address = false;
1476                 $pdesc = true;
1477
1478                 if((! is_array($profile)) && (! count($profile)))
1479                         return $o;
1480
1481                 $profile['picdate'] = urlencode($profile['picdate']);
1482
1483                 call_hooks('profile_sidebar_enter', $profile);
1484
1485
1486                 // don't show connect link to yourself
1487                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1488
1489                 // don't show connect link to authenticated visitors either
1490
1491                 if(remote_user() && count($_SESSION['remote'])) {
1492                         foreach($_SESSION['remote'] as $visitor) {
1493                                 if($visitor['uid'] == $profile['uid']) {
1494                                         $connect = false;
1495                                         break;
1496                                 }
1497                         }
1498                 }
1499
1500                 if( get_my_url() && $profile['unkmail'] && ($profile['uid'] != local_user()) )
1501                         $wallmessage = t('Message');
1502                 else
1503                         $wallmessage = false;
1504
1505
1506
1507                 // show edit profile to yourself
1508                 if ($profile['uid'] == local_user() && feature_enabled(local_user(),'multi_profiles')) {
1509                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1510
1511                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1512                                         local_user());
1513
1514                         $profile['menu'] = array(
1515                                 'chg_photo' => t('Change profile photo'),
1516                                 'cr_new' => t('Create New Profile'),
1517                                 'entries' => array(),
1518                         );
1519
1520                         if(count($r)) {
1521
1522                                 foreach($r as $rr) {
1523                                         $profile['menu']['entries'][] = array(
1524                                                 'photo' => $rr['thumb'],
1525                                                 'id' => $rr['id'],
1526                                                 'alt' => t('Profile Image'),
1527                                                 'profile_name' => $rr['profile-name'],
1528                                                 'isdefault' => $rr['is-default'],
1529                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1530                                                 'edit_visibility' => t('Edit visibility'),
1531
1532                                         );
1533                                 }
1534
1535
1536                         }
1537                 }
1538         if ($profile['uid'] == local_user() && !feature_enabled(local_user(),'multi_profiles')) {
1539             $profile['edit'] = array($a->get_baseurl(). '/profiles/'.$profile['id'], t('Edit profile'),"", t('Edit profile'));
1540                 $profile['menu'] = array(
1541                                 'chg_photo' => t('Change profile photo'),
1542                                 'cr_new' => null,
1543                                 'entries' => array(),
1544                         );
1545         }
1546
1547
1548
1549
1550                 if((x($profile,'address') == 1)
1551                                 || (x($profile,'locality') == 1)
1552                                 || (x($profile,'region') == 1)
1553                                 || (x($profile,'postal-code') == 1)
1554                                 || (x($profile,'country-name') == 1))
1555                         $location = t('Location:');
1556
1557                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1558
1559
1560                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1561
1562                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1563
1564                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1565                         $location = $pdesc = $gender = $marital = $homepage = False;
1566                 }
1567
1568                 $firstname = ((strpos($profile['name'],' '))
1569                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1570                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1571
1572                 $diaspora = array(
1573                         'podloc' => $a->get_baseurl(),
1574                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1575                         'nickname' => $profile['nickname'],
1576                         'fullname' => $profile['name'],
1577                         'firstname' => $firstname,
1578                         'lastname' => $lastname,
1579                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1580                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1581                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1582                 );
1583
1584                 if (!$block){
1585                         $contact_block = contact_block();
1586                 }
1587
1588
1589                 $p = array();
1590                 foreach($profile as $k => $v) {
1591                         $k = str_replace('-','_',$k);
1592                         $p[$k] = $v;
1593                 }
1594
1595                 if($a->theme['template_engine'] === 'internal')
1596                         $location = template_escape($location);
1597
1598
1599                 $tpl = get_markup_template('profile_vcard.tpl');
1600                 $o .= replace_macros($tpl, array(
1601                         '$profile' => $p,
1602                         '$connect'  => $connect,
1603                         '$wallmessage' => $wallmessage,
1604                         '$location' => $location,
1605                         '$gender'   => $gender,
1606                         '$pdesc'        => $pdesc,
1607                         '$marital'  => $marital,
1608                         '$homepage' => $homepage,
1609                         '$diaspora' => $diaspora,
1610                         '$contact_block' => $contact_block,
1611                 ));
1612
1613
1614                 $arr = array('profile' => &$profile, 'entry' => &$o);
1615
1616                 call_hooks('profile_sidebar', $arr);
1617
1618                 return $o;
1619         }
1620 }
1621
1622
1623 if(! function_exists('get_birthdays')) {
1624         function get_birthdays() {
1625
1626                 $a = get_app();
1627                 $o = '';
1628
1629                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1630                         return $o;
1631
1632 //              $mobile_detect = new Mobile_Detect();
1633 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1634
1635 //              if($is_mobile)
1636 //                      return $o;
1637
1638                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1639                 $bd_short = t('F d');
1640
1641                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1642                                 INNER JOIN `contact` ON `contact`.`id` = `event`.`cid`
1643                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1644                                 ORDER BY `start` ASC ",
1645                                 intval(local_user()),
1646                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1647                                 dbesc(datetime_convert('UTC','UTC','now'))
1648                 );
1649
1650                 if($r && count($r)) {
1651                         $total = 0;
1652                         $now = strtotime('now');
1653                         $cids = array();
1654
1655                         $istoday = false;
1656                         foreach($r as $rr) {
1657                                 if(strlen($rr['name']))
1658                                         $total ++;
1659                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1660                                         $istoday = true;
1661                         }
1662                         $classtoday = $istoday ? ' birthday-today ' : '';
1663                         if($total) {
1664                                 foreach($r as &$rr) {
1665                                         if(! strlen($rr['name']))
1666                                                 continue;
1667
1668                                         // avoid duplicates
1669
1670                                         if(in_array($rr['cid'],$cids))
1671                                                 continue;
1672                                         $cids[] = $rr['cid'];
1673
1674                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1675                                         $sparkle = '';
1676                                         $url = $rr['url'];
1677                                         if($rr['network'] === NETWORK_DFRN) {
1678                                                 $sparkle = " sparkle";
1679                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1680                                         }
1681
1682                                         $rr['link'] = $url;
1683                                         $rr['title'] = $rr['name'];
1684                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1685                                         $rr['startime'] = Null;
1686                                         $rr['today'] = $today;
1687
1688                                 }
1689                         }
1690                 }
1691                 $tpl = get_markup_template("birthdays_reminder.tpl");
1692                 return replace_macros($tpl, array(
1693                         '$baseurl' => $a->get_baseurl(),
1694                         '$classtoday' => $classtoday,
1695                         '$count' => $total,
1696                         '$event_reminders' => t('Birthday Reminders'),
1697                         '$event_title' => t('Birthdays this week:'),
1698                         '$events' => $r,
1699                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1700                         '$rbr' => '}'
1701
1702                 ));
1703         }
1704 }
1705
1706
1707 if(! function_exists('get_events')) {
1708         function get_events() {
1709
1710                 require_once('include/bbcode.php');
1711
1712                 $a = get_app();
1713
1714                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1715                         return $o;
1716
1717
1718 //              $mobile_detect = new Mobile_Detect();
1719 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1720
1721 //              if($is_mobile)
1722 //                      return $o;
1723
1724                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1725                 $bd_short = t('F d');
1726
1727                 $r = q("SELECT `event`.* FROM `event`
1728                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1729                                 ORDER BY `start` ASC ",
1730                                 intval(local_user()),
1731                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1732                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1733                 );
1734
1735                 if($r && count($r)) {
1736                         $now = strtotime('now');
1737                         $istoday = false;
1738                         foreach($r as $rr) {
1739                                 if(strlen($rr['name']))
1740                                         $total ++;
1741
1742                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1743                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1744                                         $istoday = true;
1745                         }
1746                         $classtoday = (($istoday) ? 'event-today' : '');
1747
1748
1749                         foreach($r as &$rr) {
1750                                 if($rr['adjust'])
1751                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1752                                 else
1753                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1754                                 $md .= "/#link-".$rr['id'];
1755
1756                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1757                                 if(! $title)
1758                                         $title = t('[No description]');
1759
1760                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1761                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1762
1763                                 $rr['link'] = $md;
1764                                 $rr['title'] = $title;
1765                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1766                                 $rr['startime'] = $strt;
1767                                 $rr['today'] = $today;
1768                         }
1769                 }
1770
1771                 $tpl = get_markup_template("events_reminder.tpl");
1772                 return replace_macros($tpl, array(
1773                         '$baseurl' => $a->get_baseurl(),
1774                         '$classtoday' => $classtoday,
1775                         '$count' => count($r),
1776                         '$event_reminders' => t('Event Reminders'),
1777                         '$event_title' => t('Events this week:'),
1778                         '$events' => $r,
1779                 ));
1780         }
1781 }
1782
1783
1784 /**
1785  *
1786  * Wrap calls to proc_close(proc_open()) and call hook
1787  * so plugins can take part in process :)
1788  *
1789  * args:
1790  * $cmd program to run
1791  *  next args are passed as $cmd command line
1792  *
1793  * e.g.: proc_run("ls","-la","/tmp");
1794  *
1795  * $cmd and string args are surrounded with ""
1796  */
1797
1798 if(! function_exists('proc_run')) {
1799         function proc_run($cmd){
1800
1801                 $a = get_app();
1802
1803                 $args = func_get_args();
1804
1805                 $newargs = array();
1806                 if(! count($args))
1807                         return;
1808
1809                 // expand any arrays
1810
1811                 foreach($args as $arg) {
1812                         if(is_array($arg)) {
1813                                 foreach($arg as $n) {
1814                                         $newargs[] = $n;
1815                                 }
1816                         }
1817                         else
1818                                 $newargs[] = $arg;
1819                 }
1820
1821                 $args = $newargs;
1822
1823                 $arr = array('args' => $args, 'run_cmd' => true);
1824
1825                 call_hooks("proc_run", $arr);
1826                 if(! $arr['run_cmd'])
1827                         return;
1828
1829                 if(count($args) && $args[0] === 'php')
1830                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1831
1832         // add baseurl to args. cli scripts can't construct it
1833         $args[] = $a->get_baseurl();
1834
1835         for($x = 0; $x < count($args); $x ++)
1836                         $args[$x] = escapeshellarg($args[$x]);
1837
1838
1839
1840                 $cmdline = implode($args," ");
1841                 if(get_config('system','proc_windows'))
1842                         proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
1843                 else
1844                         proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
1845         }
1846 }
1847
1848 if(! function_exists('current_theme')) {
1849         function current_theme(){
1850                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1851
1852                 $a = get_app();
1853
1854 //              $mobile_detect = new Mobile_Detect();
1855 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1856                 $is_mobile = $a->is_mobile || $a->is_tablet;
1857
1858                 if($is_mobile) {
1859                         if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1860                                 $system_theme = '';
1861                                 $theme_name = '';
1862                         }
1863                         else {
1864                                 $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1865                                 $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1866
1867                                 if($theme_name === '---') {
1868                                         // user has selected to have the mobile theme be the same as the normal one
1869                                         $system_theme = '';
1870                                         $theme_name = '';
1871                                 }
1872                         }
1873                 }
1874                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1875                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1876                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1877                 }
1878
1879                 if($theme_name &&
1880                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1881                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1882                         return($theme_name);
1883
1884                 foreach($app_base_themes as $t) {
1885                         if(file_exists('view/theme/' . $t . '/style.css')||
1886                                         file_exists('view/theme/' . $t . '/style.php'))
1887                                 return($t);
1888                 }
1889
1890                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1891                 if(count($fallback))
1892                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1893
1894         }
1895 }
1896
1897 /*
1898  * Return full URL to theme which is currently in effect.
1899 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1900 */
1901 if(! function_exists('current_theme_url')) {
1902         function current_theme_url() {
1903                 global $a;
1904                 $t = current_theme();
1905                 if (file_exists('view/theme/' . $t . '/style.php'))
1906                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1907                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1908         }
1909 }
1910
1911 if(! function_exists('feed_birthday')) {
1912         function feed_birthday($uid,$tz) {
1913
1914                 /**
1915                  *
1916                  * Determine the next birthday, but only if the birthday is published
1917                  * in the default profile. We _could_ also look for a private profile that the
1918                  * recipient can see, but somebody could get mad at us if they start getting
1919                  * public birthday greetings when they haven't made this info public.
1920                  *
1921                  * Assuming we are able to publish this info, we are then going to convert
1922                  * the start time from the owner's timezone to UTC.
1923                  *
1924                  * This will potentially solve the problem found with some social networks
1925                  * where birthdays are converted to the viewer's timezone and salutations from
1926                  * elsewhere in the world show up on the wrong day. We will convert it to the
1927                  * viewer's timezone also, but first we are going to convert it from the birthday
1928                  * person's timezone to GMT - so the viewer may find the birthday starting at
1929                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1930                  *
1931                  */
1932
1933
1934                 $birthday = '';
1935
1936                 if(! strlen($tz))
1937                         $tz = 'UTC';
1938
1939                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1940                                 intval($uid)
1941                 );
1942
1943                 if($p && count($p)) {
1944                         $tmp_dob = substr($p[0]['dob'],5);
1945                         if(intval($tmp_dob)) {
1946                                 $y = datetime_convert($tz,$tz,'now','Y');
1947                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1948                                 $t_dob = strtotime($bd);
1949                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1950                                 if($t_dob < $now)
1951                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1952                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
1953                         }
1954                 }
1955
1956                 return $birthday;
1957         }
1958 }
1959
1960 if(! function_exists('is_site_admin')) {
1961         function is_site_admin() {
1962                 $a = get_app();
1963
1964                 $adminlist = explode(",", str_replace(" ", "", $a->config['admin_email']));
1965
1966                 //if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1967                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && in_array($a->user['email'], $adminlist))
1968                         return true;
1969                 return false;
1970         }
1971 }
1972
1973
1974 if(! function_exists('load_contact_links')) {
1975         function load_contact_links($uid) {
1976
1977                 $a = get_app();
1978
1979                 $ret = array();
1980
1981                 if(! $uid || x($a->contacts,'empty'))
1982                         return;
1983
1984                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
1985                                 intval($uid)
1986                 );
1987                 if(count($r)) {
1988                         foreach($r as $rr){
1989                                 $url = normalise_link($rr['url']);
1990                                 $ret[$url] = $rr;
1991                         }
1992                 }
1993                 else
1994                         $ret['empty'] = true;
1995                 $a->contacts = $ret;
1996                 return;
1997         }
1998 }
1999
2000 if(! function_exists('profile_tabs')){
2001         function profile_tabs($a, $is_owner=False, $nickname=Null){
2002                 //echo "<pre>"; var_dump($a->user); killme();
2003
2004                 if (is_null($nickname))
2005                         $nickname  = $a->user['nickname'];
2006
2007                 if(x($_GET,'tab'))
2008                         $tab = notags(trim($_GET['tab']));
2009
2010                 $url = $a->get_baseurl() . '/profile/' . $nickname;
2011
2012                 $tabs = array(
2013                         array(
2014                                 'label'=>t('Status'),
2015                                 'url' => $url,
2016                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
2017                                 'title' => t('Status Messages and Posts'),
2018                                 'id' => 'status-tab',
2019                         ),
2020                         array(
2021                                 'label' => t('Profile'),
2022                                 'url'   => $url.'/?tab=profile',
2023                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
2024                                 'title' => t('Profile Details'),
2025                                 'id' => 'profile-tab',
2026                         ),
2027                         array(
2028                                 'label' => t('Photos'),
2029                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
2030                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
2031                                 'title' => t('Photo Albums'),
2032                                 'id' => 'photo-tab',
2033                         ),
2034                         array(
2035                                 'label' => t('Videos'),
2036                                 'url'   => $a->get_baseurl() . '/videos/' . $nickname,
2037                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='videos')?'active':''),
2038                                 'title' => t('Videos'),
2039                                 'id' => 'video-tab',
2040                         ),
2041                 );
2042
2043                 if ($is_owner){
2044                         $tabs[] = array(
2045                                 'label' => t('Events'),
2046                                 'url'   => $a->get_baseurl() . '/events',
2047                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
2048                                 'title' => t('Events and Calendar'),
2049                                 'id' => 'events-tab',
2050                         );
2051                         $tabs[] = array(
2052                                 'label' => t('Personal Notes'),
2053                                 'url'   => $a->get_baseurl() . '/notes',
2054                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
2055                                 'title' => t('Only You Can See This'),
2056                                 'id' => 'notes-tab',
2057                         );
2058                 }
2059
2060
2061                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
2062                 call_hooks('profile_tabs', $arr);
2063
2064                 $tpl = get_markup_template('common_tabs.tpl');
2065
2066                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
2067         }
2068 }
2069
2070 function get_my_url() {
2071         if(x($_SESSION,'my_url'))
2072                 return $_SESSION['my_url'];
2073         return false;
2074 }
2075
2076 function zrl_init(&$a) {
2077         $tmp_str = get_my_url();
2078         if(validate_url($tmp_str)) {
2079                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
2080                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
2081                 call_hooks('zrl_init',$arr);
2082         }
2083 }
2084
2085 function zrl($s,$force = false) {
2086         if(! strlen($s))
2087                 return $s;
2088         if((! strpos($s,'/profile/')) && (! $force))
2089                 return $s;
2090         if($force && substr($s,-1,1) !== '/')
2091                 $s = $s . '/';
2092         $achar = strpos($s,'?') ? '&' : '?';
2093         $mine = get_my_url();
2094         if($mine and ! link_compare($mine,$s))
2095                 return $s . $achar . 'zrl=' . urlencode($mine);
2096         return $s;
2097 }
2098
2099 /**
2100 * returns querystring as string from a mapped array
2101 *
2102 * @param params Array
2103 * @return string
2104 */
2105 function build_querystring($params, $name=null) {
2106     $ret = "";
2107     foreach($params as $key=>$val) {
2108         if(is_array($val)) {
2109             if($name==null) {
2110                 $ret .= build_querystring($val, $key);
2111             } else {
2112                 $ret .= build_querystring($val, $name."[$key]");
2113             }
2114         } else {
2115             $val = urlencode($val);
2116             if($name!=null) {
2117                 $ret.=$name."[$key]"."=$val&";
2118             } else {
2119                 $ret.= "$key=$val&";
2120             }
2121         }
2122     }
2123     return $ret;
2124 }
2125
2126 function explode_querystring($query) {
2127         $arg_st = strpos($query, '?');
2128         if($arg_st !== false) {
2129                 $base = substr($query, 0, $arg_st);
2130                 $arg_st += 1;
2131         }
2132         else {
2133                 $base = '';
2134                 $arg_st = 0;
2135         }
2136
2137         $args = explode('&', substr($query, $arg_st));
2138         foreach($args as $k=>$arg) {
2139                 if($arg === '')
2140                         unset($args[$k]);
2141         }
2142         $args = array_values($args);
2143
2144         if(!$base) {
2145                 $base = $args[0];
2146                 unset($args[0]);
2147                 $args = array_values($args);
2148         }
2149
2150         return array(
2151                 'base' => $base,
2152                 'args' => $args,
2153         );
2154 }
2155
2156 /**
2157 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
2158 *
2159 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
2160 */
2161 function curPageURL() {
2162         $pageURL = 'http';
2163         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
2164         $pageURL .= "://";
2165         if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
2166                 $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
2167         } else {
2168                 $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
2169         }
2170         return $pageURL;
2171 }
2172
2173 function random_digits($digits) {
2174         $rn = '';
2175         for($i = 0; $i < $digits; $i++) {
2176                 $rn .= rand(0,9);
2177         }
2178         return $rn;
2179 }
2180
2181 function get_cachefile($file, $writemode = true) {
2182         $cache = get_itemcachepath();
2183
2184         if ((! $cache) || (! is_dir($cache)))
2185                 return("");
2186
2187         $subfolder = $cache."/".substr($file, 0, 2);
2188
2189         $cachepath = $subfolder."/".$file;
2190
2191         if ($writemode) {
2192                 if (!is_dir($subfolder)) {
2193                         mkdir($subfolder);
2194                         chmod($subfolder, 0777);
2195                 }
2196         }
2197
2198         return($cachepath);
2199 }
2200
2201 function clear_cache($basepath = "", $path = "") {
2202         if ($path == "") {
2203                 $basepath = get_itemcachepath();
2204                 $path = $basepath;
2205         }
2206
2207         if (($path == "") OR (!is_dir($path)))
2208                 return;
2209
2210         if (substr(realpath($path), 0, strlen($basepath)) != $basepath)
2211                 return;
2212
2213         $cachetime = (int)get_config('system','itemcache_duration');
2214         if ($cachetime == 0)
2215                 $cachetime = 86400;
2216
2217         if (is_writable($path)){
2218         if ($dh = opendir($path)) {
2219                 while (($file = readdir($dh)) !== false) {
2220                         $fullpath = $path."/".$file;
2221                         if ((filetype($fullpath) == "dir") and ($file != ".") and ($file != ".."))
2222                                 clear_cache($basepath, $fullpath);
2223                         if ((filetype($fullpath) == "file") and (filectime($fullpath) < (time() - $cachetime)))
2224                                 unlink($fullpath);
2225                 }
2226                 closedir($dh);
2227         }
2228         }
2229 }
2230
2231 function get_itemcachepath() {
2232         // Checking, if the cache is deactivated
2233         $cachetime = (int)get_config('system','itemcache_duration');
2234         if ($cachetime < 0)
2235                 return "";
2236
2237         $itemcache = get_config('system','itemcache');
2238         if (($itemcache != "") AND is_dir($itemcache) AND is_writable($itemcache))
2239                 return($itemcache);
2240
2241         $temppath = get_temppath();
2242
2243         if ($temppath != "") {
2244                 $itemcache = $temppath."/itemcache";
2245                 mkdir($itemcache);
2246
2247                 if (is_dir($itemcache) AND is_writable($itemcache)) {
2248                         set_config("system", "itemcache", $itemcache);
2249                         return($itemcache);
2250                 }
2251         }
2252         return "";
2253 }
2254
2255 function get_lockpath() {
2256         $lockpath = get_config('system','lockpath');
2257         if (($lockpath != "") AND is_dir($lockpath) AND is_writable($lockpath))
2258                 return($lockpath);
2259
2260         $temppath = get_temppath();
2261
2262         if ($temppath != "") {
2263                 $lockpath = $temppath."/lock";
2264                 mkdir($lockpath);
2265
2266                 if (is_dir($lockpath) AND is_writable($lockpath)) {
2267                         set_config("system", "lockpath", $lockpath);
2268                         return($lockpath);
2269                 }
2270         }
2271         return "";
2272 }
2273
2274 function get_temppath() {
2275         $temppath = get_config("system","temppath");
2276         if (($temppath != "") AND is_dir($temppath) AND is_writable($temppath))
2277                 return($temppath);
2278
2279         $temppath = sys_get_temp_dir();
2280         if (($temppath != "") AND is_dir($temppath) AND is_writable($temppath)) {
2281                 set_config("system", "temppath", $temppath);
2282                 return($temppath);
2283         }
2284
2285         return("");
2286 }
2287
2288 function set_template_engine(&$a, $engine = 'internal') {
2289 // This function is no longer necessary, but keep it as a wrapper to the class method
2290 // to avoid breaking themes again unnecessarily
2291
2292         $a->set_template_engine($engine);
2293 }
2294
2295 if(!function_exists('exif_imagetype')) {
2296         function exif_imagetype($file) {
2297                 $size = getimagesize($file);
2298                 return($size[2]);
2299         }
2300 }