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',      '3.1.1644' );
  16 define ( 'DFRN_PROTOCOL_VERSION',  '2.23'    );
  17 define ( 'DB_UPDATE_VERSION',      1163      );
  18 define ( 'EOL',                    "<br />\r\n"     );
  19 define ( 'ATOM_TIME',              'Y-m-d\TH:i:s\Z' );
  20
  21
  22 /**
  23  *
  24  * Image storage quality. Lower numbers save space at cost of image detail.
  25  * For ease of upgrade, please do not change here. Change jpeg quality with
  26  * $a->config['system']['jpeg_quality'] = n;
  27  * in .htconfig.php, where n is netween 1 and 100, and with very poor results
  28  * below about 50
  29  *
  30  */
  31
  32 define ( 'JPEG_QUALITY',            100  );
  33 /**
  34  * $a->config['system']['png_quality'] from 0 (uncompressed) to 9
  35  */
  36 define ( 'PNG_QUALITY',             8  );
  37
  38 /**
  39  *
  40  * An alternate way of limiting picture upload sizes. Specify the maximum pixel
  41  * length that pictures are allowed to be (for non-square pictures, it will apply
  42  * to the longest side). Pictures longer than this length will be resized to be
  43  * this length (on the longest side, the other side will be scaled appropriately).
  44  * Modify this value using
  45  *
  46  *    $a->config['system']['max_image_length'] = n;
  47  *
  48  * in .htconfig.php
  49  *
  50  * If you don't want to set a maximum length, set to -1. The default value is
  51  * defined by 'MAX_IMAGE_LENGTH' below.
  52  *
  53  */
  54 define ( 'MAX_IMAGE_LENGTH',        -1  );
  55
  56
  57 /**
  58  * Not yet used
  59  */
  60
  61 define ( 'DEFAULT_DB_ENGINE',  'MyISAM'  );
  62
  63 /**
  64  * SSL redirection policies
  65  */
  66
  67 define ( 'SSL_POLICY_NONE',         0 );
  68 define ( 'SSL_POLICY_FULL',         1 );
  69 define ( 'SSL_POLICY_SELFSIGN',     2 );
  70
  71
  72 /**
  73  * log levels
  74  */
  75
  76 define ( 'LOGGER_NORMAL',          0 );
  77 define ( 'LOGGER_TRACE',           1 );
  78 define ( 'LOGGER_DEBUG',           2 );
  79 define ( 'LOGGER_DATA',            3 );
  80 define ( 'LOGGER_ALL',             4 );
  81
  82 /**
  83  * registration policies
  84  */
  85
  86 define ( 'REGISTER_CLOSED',        0 );
  87 define ( 'REGISTER_APPROVE',       1 );
  88 define ( 'REGISTER_OPEN',          2 );
  89
  90 /**
  91  * relationship types
  92  */
  93
  94 define ( 'CONTACT_IS_FOLLOWER', 1);
  95 define ( 'CONTACT_IS_SHARING',  2);
  96 define ( 'CONTACT_IS_FRIEND',   3);
  97
  98
  99 /**
 100  * DB update return values
 101  */
 102
 103 define ( 'UPDATE_SUCCESS', 0);
 104 define ( 'UPDATE_FAILED',  1);
 105
 106
 107 /**
 108  *
 109  * page/profile types
 110  *
 111  * PAGE_NORMAL is a typical personal profile account
 112  * PAGE_SOAPBOX automatically approves all friend requests as CONTACT_IS_SHARING, (readonly)
 113  * PAGE_COMMUNITY automatically approves all friend requests as CONTACT_IS_SHARING, but with
 114  *      write access to wall and comments (no email and not included in page owner's ACL lists)
 115  * PAGE_FREELOVE automatically approves all friend requests as full friends (CONTACT_IS_FRIEND).
 116  *
 117  */
 118
 119 define ( 'PAGE_NORMAL',            0 );
 120 define ( 'PAGE_SOAPBOX',           1 );
 121 define ( 'PAGE_COMMUNITY',         2 );
 122 define ( 'PAGE_FREELOVE',          3 );
 123 define ( 'PAGE_BLOG',              4 );
 124 define ( 'PAGE_PRVGROUP',          5 );
 125
 126 /**
 127  * Network and protocol family types
 128  */
 129
 130 define ( 'NETWORK_DFRN',             'dfrn');    // Friendica, Mistpark, other DFRN implementations
 131 define ( 'NETWORK_ZOT',              'zot!');    // Zot!
 132 define ( 'NETWORK_OSTATUS',          'stat');    // status.net, identi.ca, GNU-social, other OStatus implementations
 133 define ( 'NETWORK_FEED',             'feed');    // RSS/Atom feeds with no known "post/notify" protocol
 134 define ( 'NETWORK_DIASPORA',         'dspr');    // Diaspora
 135 define ( 'NETWORK_MAIL',             'mail');    // IMAP/POP
 136 define ( 'NETWORK_MAIL2',            'mai2');    // extended IMAP/POP
 137 define ( 'NETWORK_FACEBOOK',         'face');    // Facebook API
 138 define ( 'NETWORK_LINKEDIN',         'lnkd');    // LinkedIn
 139 define ( 'NETWORK_XMPP',             'xmpp');    // XMPP
 140 define ( 'NETWORK_MYSPACE',          'mysp');    // MySpace
 141 define ( 'NETWORK_GPLUS',            'goog');    // Google+
 142
 143 define ( 'NETWORK_PHANTOM',          'unkn');    // Place holder
 144
 145 /**
 146  * These numbers are used in stored permissions
 147  * and existing allocations MUST NEVER BE CHANGED
 148  * OR RE-ASSIGNED! You may only add to them.
 149  */
 150
 151 $netgroup_ids = array(
 152         NETWORK_DFRN     => (-1),
 153         NETWORK_ZOT      => (-2),
 154         NETWORK_OSTATUS  => (-3),
 155         NETWORK_FEED     => (-4),
 156         NETWORK_DIASPORA => (-5),
 157         NETWORK_MAIL     => (-6),
 158         NETWORK_MAIL2    => (-7),
 159         NETWORK_FACEBOOK => (-8),
 160         NETWORK_LINKEDIN => (-9),
 161         NETWORK_XMPP     => (-10),
 162         NETWORK_MYSPACE  => (-11),
 163         NETWORK_GPLUS    => (-12),
 164
 165         NETWORK_PHANTOM  => (-127),
 166 );
 167
 168
 169 /**
 170  * Maximum number of "people who like (or don't like) this"  that we will list by name
 171  */
 172
 173 define ( 'MAX_LIKERS',    75);
 174
 175 /**
 176  * Communication timeout
 177  */
 178
 179 define ( 'ZCURL_TIMEOUT' , (-1));
 180
 181
 182 /**
 183  * email notification options
 184  */
 185
 186 define ( 'NOTIFY_INTRO',    0x0001 );
 187 define ( 'NOTIFY_CONFIRM',  0x0002 );
 188 define ( 'NOTIFY_WALL',     0x0004 );
 189 define ( 'NOTIFY_COMMENT',  0x0008 );
 190 define ( 'NOTIFY_MAIL',     0x0010 );
 191 define ( 'NOTIFY_SUGGEST',  0x0020 );
 192 define ( 'NOTIFY_PROFILE',  0x0040 );
 193 define ( 'NOTIFY_TAGSELF',  0x0080 );
 194 define ( 'NOTIFY_TAGSHARE', 0x0100 );
 195 define ( 'NOTIFY_POKE',     0x0200 );
 196
 197 define ( 'NOTIFY_SYSTEM',   0x8000 );
 198
 199
 200 /**
 201  * Tag/term types
 202  */
 203
 204 define ( 'TERM_UNKNOWN',   0 );
 205 define ( 'TERM_HASHTAG',   1 );
 206 define ( 'TERM_MENTION',   2 );
 207 define ( 'TERM_CATEGORY',  3 );
 208 define ( 'TERM_PCATEGORY', 4 );
 209 define ( 'TERM_FILE',      5 );
 210 define ( 'TERM_SAVEDSEARCH', 6 );
 211 define ( 'TERM_CONVERSATION', 7 );
 212
 213 define ( 'TERM_OBJ_POST',  1 );
 214 define ( 'TERM_OBJ_PHOTO', 2 );
 215
 216
 217
 218 /**
 219  * various namespaces we may need to parse
 220  */
 221
 222 define ( 'NAMESPACE_ZOT',             'http://purl.org/zot' );
 223 define ( 'NAMESPACE_DFRN' ,           'http://purl.org/macgirvin/dfrn/1.0' );
 224 define ( 'NAMESPACE_THREAD' ,         'http://purl.org/syndication/thread/1.0' );
 225 define ( 'NAMESPACE_TOMB' ,           'http://purl.org/atompub/tombstones/1.0' );
 226 define ( 'NAMESPACE_ACTIVITY',        'http://activitystrea.ms/spec/1.0/' );
 227 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
 228 define ( 'NAMESPACE_MEDIA',           'http://purl.org/syndication/atommedia' );
 229 define ( 'NAMESPACE_SALMON_ME',       'http://salmon-protocol.org/ns/magic-env' );
 230 define ( 'NAMESPACE_OSTATUSSUB',      'http://ostatus.org/schema/1.0/subscribe' );
 231 define ( 'NAMESPACE_GEORSS',          'http://www.georss.org/georss' );
 232 define ( 'NAMESPACE_POCO',            'http://portablecontacts.net/spec/1.0' );
 233 define ( 'NAMESPACE_FEED',            'http://schemas.google.com/g/2010#updates-from' );
 234 define ( 'NAMESPACE_OSTATUS',         'http://ostatus.org/schema/1.0' );
 235 define ( 'NAMESPACE_STATUSNET',       'http://status.net/schema/api/1/' );
 236 define ( 'NAMESPACE_ATOM1',           'http://www.w3.org/2005/Atom' );
 237 /**
 238  * activity stream defines
 239  */
 240
 241 define ( 'ACTIVITY_LIKE',        NAMESPACE_ACTIVITY_SCHEMA . 'like' );
 242 define ( 'ACTIVITY_DISLIKE',     NAMESPACE_DFRN            . '/dislike' );
 243 define ( 'ACTIVITY_OBJ_HEART',   NAMESPACE_DFRN            . '/heart' );
 244
 245 define ( 'ACTIVITY_FRIEND',      NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
 246 define ( 'ACTIVITY_REQ_FRIEND',  NAMESPACE_ACTIVITY_SCHEMA . 'request-friend' );
 247 define ( 'ACTIVITY_UNFRIEND',    NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend' );
 248 define ( 'ACTIVITY_FOLLOW',      NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
 249 define ( 'ACTIVITY_UNFOLLOW',    NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
 250 define ( 'ACTIVITY_JOIN',        NAMESPACE_ACTIVITY_SCHEMA . 'join' );
 251
 252 define ( 'ACTIVITY_POST',        NAMESPACE_ACTIVITY_SCHEMA . 'post' );
 253 define ( 'ACTIVITY_UPDATE',      NAMESPACE_ACTIVITY_SCHEMA . 'update' );
 254 define ( 'ACTIVITY_TAG',         NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
 255 define ( 'ACTIVITY_FAVORITE',    NAMESPACE_ACTIVITY_SCHEMA . 'favorite' );
 256
 257 define ( 'ACTIVITY_POKE',        NAMESPACE_ZOT . '/activity/poke' );
 258 define ( 'ACTIVITY_MOOD',        NAMESPACE_ZOT . '/activity/mood' );
 259
 260 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
 261 define ( 'ACTIVITY_OBJ_NOTE',    NAMESPACE_ACTIVITY_SCHEMA . 'note' );
 262 define ( 'ACTIVITY_OBJ_PERSON',  NAMESPACE_ACTIVITY_SCHEMA . 'person' );
 263 define ( 'ACTIVITY_OBJ_PHOTO',   NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
 264 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
 265 define ( 'ACTIVITY_OBJ_ALBUM',   NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
 266 define ( 'ACTIVITY_OBJ_EVENT',   NAMESPACE_ACTIVITY_SCHEMA . 'event' );
 267 define ( 'ACTIVITY_OBJ_GROUP',   NAMESPACE_ACTIVITY_SCHEMA . 'group' );
 268 define ( 'ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN            . '/tagterm' );
 269 define ( 'ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN            . '/profile' );
 270
 271 /**
 272  * item weight for query ordering
 273  */
 274
 275 define ( 'GRAVITY_PARENT',       0);
 276 define ( 'GRAVITY_LIKE',         3);
 277 define ( 'GRAVITY_COMMENT',      6);
 278
 279 /**
 280  *
 281  * Reverse the effect of magic_quotes_gpc if it is enabled.
 282  * Please disable magic_quotes_gpc so we don't have to do this.
 283  * See http://php.net/manual/en/security.magicquotes.disabling.php
 284  *
 285  */
 286
 287 function startup() {
 288
 289         error_reporting(E_ERROR | E_WARNING | E_PARSE);
 290
 291         set_time_limit(0);
 292
 293         // This has to be quite large to deal with embedded private photos
 294         ini_set('pcre.backtrack_limit', 500000);
 295
 296
 297         if (get_magic_quotes_gpc()) {
 298                 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
 299                 while (list($key, $val) = each($process)) {
 300                         foreach ($val as $k => $v) {
 301                                 unset($process[$key][$k]);
 302                                 if (is_array($v)) {
 303                                         $process[$key][stripslashes($k)] = $v;
 304                                         $process[] = &$process[$key][stripslashes($k)];
 305                                 } else {
 306                                         $process[$key][stripslashes($k)] = stripslashes($v);
 307                                 }
 308                         }
 309                 }
 310                 unset($process);
 311         }
 312
 313 }
 314
 315 /**
 316  *
 317  * class: App
 318  *
 319  * Our main application structure for the life of this page
 320  * Primarily deals with the URL that got us here
 321  * and tries to make some sense of it, and
 322  * stores our page contents and config storage
 323  * and anything else that might need to be passed around
 324  * before we spit the page out.
 325  *
 326  */
 327
 328 if(! class_exists('App')) {
 329         class App {
 330
 331                 public  $module_loaded = false;
 332                 public  $query_string;
 333                 public  $config;
 334                 public  $page;
 335                 public  $profile;
 336                 public  $user;
 337                 public  $cid;
 338                 public  $contact;
 339                 public  $contacts;
 340                 public  $page_contact;
 341                 public  $content;
 342                 public  $data = array();
 343                 public  $error = false;
 344                 public  $cmd;
 345                 public  $argv;
 346                 public  $argc;
 347                 public  $module;
 348                 public  $pager;
 349                 public  $strings;
 350                 public  $path;
 351                 public  $hooks;
 352                 public  $timezone;
 353                 public  $interactive = true;
 354                 public  $plugins;
 355                 public  $apps = array();
 356                 public  $identities;
 357                 public  $is_mobile;
 358                 public  $is_tablet;
 359                 public  $performance = array();
 360
 361                 public $nav_sel;
 362
 363                 public $category;
 364
 365
 366                 // Allow themes to control internal parameters
 367                 // by changing App values in theme.php
 368
 369                 public  $sourcename = '';
 370                 public  $videowidth = 425;
 371                 public  $videoheight = 350;
 372                 public  $force_max_items = 0;
 373                 public  $theme_thread_allow = true;
 374
 375                 // An array for all theme-controllable parameters
 376                 // Mostly unimplemented yet. Only options 'stylesheet' and
 377                 // beyond are used.
 378
 379                 public  $theme = array(
 380                         'sourcename' => '',
 381                         'videowidth' => 425,
 382                         'videoheight' => 350,
 383                         'force_max_items' => 0,
 384                         'thread_allow' => true,
 385                         'stylesheet' => '',
 386                         'template_engine' => 'internal',
 387                 );
 388
 389                 private $ldelim = array(
 390                         'internal' => '',
 391                         'smarty3' => '{{'
 392                 );
 393                 private $rdelim = array(
 394                         'internal' => '',
 395                         'smarty3' => '}}'
 396                 );
 397
 398                 private $scheme;
 399                 private $hostname;
 400                 private $baseurl;
 401                 private $db;
 402
 403                 private $curl_code;
 404                 private $curl_headers;
 405
 406                 private $cached_profile_image;
 407                 private $cached_profile_picdate;
 408
 409                 function __construct() {
 410
 411                         global $default_timezone, $argv, $argc;
 412
 413                         $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
 414
 415                         date_default_timezone_set($this->timezone);
 416
 417                         $this->performance["start"] = microtime(true);
 418                         $this->performance["database"] = 0;
 419                         $this->performance["network"] = 0;
 420                         $this->performance["rendering"] = 0;
 421                         $this->performance["parser"] = 0;
 422                         $this->performance["marktime"] = 0;
 423                         $this->performance["markstart"] = microtime(true);
 424
 425                         $this->config = array();
 426                         $this->page = array();
 427                         $this->pager= array();
 428
 429                         $this->query_string = '';
 430
 431                         startup();
 432
 433                         $this->scheme = 'http';
 434                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
 435                                 $this->scheme = 'https';
 436                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
 437                         $this->scheme = 'https';
 438
 439                         if(x($_SERVER,'SERVER_NAME')) {
 440                                 $this->hostname = $_SERVER['SERVER_NAME'];
 441
 442                                 // See bug 437 - this didn't work so disabling it
 443                                 //if(stristr($this->hostname,'xn--')) {
 444                                         // PHP or webserver may have converted idn to punycode, so
 445                                         // convert punycode back to utf-8
 446                                 //      require_once('library/simplepie/idn/idna_convert.class.php');
 447                                 //      $x = new idna_convert();
 448                                 //      $this->hostname = $x->decode($_SERVER['SERVER_NAME']);
 449                                 //}
 450
 451                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
 452                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
 453                                 /**
 454                                  * Figure out if we are running at the top of a domain
 455                                  * or in a sub-directory and adjust accordingly
 456                                  */
 457
 458                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
 459                                 if(isset($path) && strlen($path) && ($path != $this->path))
 460                                         $this->path = $path;
 461                         }
 462                         if (is_array($argv) && $argc>1 && substr(end($argv), 0, 4)=="http" ) {
 463                                 $this->set_baseurl(array_pop($argv) );
 464                                 $argc --;
 465                         }
 466
 467                         set_include_path(
 468                                         "include/$this->hostname" . PATH_SEPARATOR
 469                                         . 'include' . PATH_SEPARATOR
 470                                         . 'library' . PATH_SEPARATOR
 471                                         . 'library/phpsec' . PATH_SEPARATOR
 472                                         . 'library/langdet' . PATH_SEPARATOR
 473                                         . '.' );
 474
 475
 476                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
 477                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
 478                                 // removing trailing / - maybe a nginx problem
 479                                 if (substr($this->query_string, 0, 1) == "/")
 480                                         $this->query_string = substr($this->query_string, 1);
 481                         }
 482                         if(x($_GET,'q'))
 483                                 $this->cmd = trim($_GET['q'],'/\\');
 484
 485                         // unix style "homedir"
 486
 487                         if(substr($this->cmd,0,1) === '~')
 488                                 $this->cmd = 'profile/' . substr($this->cmd,1);
 489
 490                         // Diaspora style profile url
 491
 492                         if(substr($this->cmd,0,2) === 'u/')
 493                                 $this->cmd = 'profile/' . substr($this->cmd,2);
 494
 495                         /**
 496                          *
 497                          * Break the URL path into C style argc/argv style arguments for our
 498                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
 499                          * will be 3 (integer) and $this->argv will contain:
 500                          *   [0] => 'module'
 501                          *   [1] => 'arg1'
 502                          *   [2] => 'arg2'
 503                          *
 504                          *
 505                          * There will always be one argument. If provided a naked domain
 506                          * URL, $this->argv[0] is set to "home".
 507                          *
 508                          */
 509
 510                         $this->argv = explode('/',$this->cmd);
 511                         $this->argc = count($this->argv);
 512                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
 513                                 $this->module = str_replace(".", "_", $this->argv[0]);
 514                                 $this->module = str_replace("-", "_", $this->module);
 515                         }
 516                         else {
 517                                 $this->argc = 1;
 518                                 $this->argv = array('home');
 519                                 $this->module = 'home';
 520                         }
 521
 522                         /**
 523                          * See if there is any page number information, and initialise
 524                          * pagination
 525                          */
 526
 527                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
 528                         $this->pager['itemspage'] = 50;
 529                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 530                         if($this->pager['start'] < 0)
 531                                 $this->pager['start'] = 0;
 532                         $this->pager['total'] = 0;
 533
 534                         /**
 535                          * Detect mobile devices
 536                          */
 537
 538                         $mobile_detect = new Mobile_Detect();
 539                         $this->is_mobile = $mobile_detect->isMobile();
 540                         $this->is_tablet = $mobile_detect->isTablet();
 541                 }
 542
 543                 function get_basepath() {
 544
 545                         $basepath = get_config("system", "basepath");
 546
 547                         if ($basepath == "")
 548                                 $basepath = $_SERVER["DOCUMENT_ROOT"];
 549
 550                         if ($basepath == "")
 551                                 $basepath = $_SERVER["PWD"];
 552
 553                         return($basepath);
 554                 }
 555
 556                 function get_baseurl($ssl = false) {
 557
 558                         $scheme = $this->scheme;
 559
 560                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
 561                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
 562                                         $scheme = 'https';
 563
 564                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
 565                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
 566
 567                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
 568                                         if($ssl)
 569                                                 $scheme = 'https';
 570                                         else
 571                                                 $scheme = 'http';
 572                                 }
 573                         }
 574
 575                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
 576                         return $this->baseurl;
 577                 }
 578
 579                 function set_baseurl($url) {
 580                         $parsed = @parse_url($url);
 581
 582                         $this->baseurl = $url;
 583
 584                         if($parsed) {
 585                                 $this->scheme = $parsed['scheme'];
 586
 587                                 $this->hostname = $parsed['host'];
 588                                 if(x($parsed,'port'))
 589                                         $this->hostname .= ':' . $parsed['port'];
 590                                 if(x($parsed,'path'))
 591                                         $this->path = trim($parsed['path'],'\\/');
 592                         }
 593
 594                 }
 595
 596                 function get_hostname() {
 597                         return $this->hostname;
 598                 }
 599
 600                 function set_hostname($h) {
 601                         $this->hostname = $h;
 602                 }
 603
 604                 function set_path($p) {
 605                         $this->path = trim(trim($p),'/');
 606                 }
 607
 608                 function get_path() {
 609                         return $this->path;
 610                 }
 611
 612                 function set_pager_total($n) {
 613                         $this->pager['total'] = intval($n);
 614                 }
 615
 616                 function set_pager_itemspage($n) {
 617                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
 618                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 619
 620                 }
 621
 622                 function init_pagehead() {
 623                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
 624                         if($interval < 10000)
 625                                 $interval = 40000;
 626
 627                         $this->page['title'] = $this->config['sitename'];
 628
 629                         /* put the head template at the beginning of page['htmlhead']
 630                          * since the code added by the modules frequently depends on it
 631                          * being first
 632                          */
 633                         if(!isset($this->page['htmlhead']))
 634                                 $this->page['htmlhead'] = '';
 635
 636                         // If we're using Smarty, then doing replace_macros() will replace
 637                         // any unrecognized variables with a blank string. Since we delay
 638                         // replacing $stylesheet until later, we need to replace it now
 639                         // with another variable name
 640                         if($this->theme['template_engine'] === 'smarty3')
 641                                 $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
 642                         else
 643                                 $stylesheet = '$stylesheet';
 644
 645                         $tpl = get_markup_template('head.tpl');
 646                         $this->page['htmlhead'] = replace_macros($tpl,array(
 647                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
 648                                 '$local_user' => local_user(),
 649                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
 650                                 '$delitem' => t('Delete this item?'),
 651                                 '$comment' => t('Comment'),
 652                                 '$showmore' => t('show more'),
 653                                 '$showfewer' => t('show fewer'),
 654                                 '$update_interval' => $interval,
 655                                 '$stylesheet' => $stylesheet
 656                         )) . $this->page['htmlhead'];
 657                 }
 658
 659                 function init_page_end() {
 660                         if(!isset($this->page['end']))
 661                                 $this->page['end'] = '';
 662                         $tpl = get_markup_template('end.tpl');
 663                         $this->page['end'] = replace_macros($tpl,array(
 664                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
 665                         )) . $this->page['end'];
 666                 }
 667
 668                 function set_curl_code($code) {
 669                         $this->curl_code = $code;
 670                 }
 671
 672                 function get_curl_code() {
 673                         return $this->curl_code;
 674                 }
 675
 676                 function set_curl_headers($headers) {
 677                         $this->curl_headers = $headers;
 678                 }
 679
 680                 function get_curl_headers() {
 681                         return $this->curl_headers;
 682                 }
 683
 684                 function get_cached_avatar_image($avatar_image){
 685                         if($this->cached_profile_image[$avatar_image])
 686                                 return $this->cached_profile_image[$avatar_image];
 687
 688                         $path_parts = explode("/",$avatar_image);
 689                         $common_filename = $path_parts[count($path_parts)-1];
 690
 691                         if($this->cached_profile_picdate[$common_filename]){
 692                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 693                         } else {
 694                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like \"%%/%s\"",
 695                                         $common_filename);
 696                                 if(! count($r)){
 697                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
 698                                 } else {
 699                                         $this->cached_profile_picdate[$common_filename] = "?rev=" . urlencode($r[0]['picdate']);
 700                                         $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 701                                 }
 702                         }
 703                         return $this->cached_profile_image[$avatar_image];
 704                 }
 705
 706                 function get_template_engine() {
 707                         return $this->theme['template_engine'];
 708                 }
 709
 710                 function set_template_engine($engine = 'internal') {
 711
 712                         $this->theme['template_engine'] = 'internal';
 713
 714                         switch($engine) {
 715                                 case 'smarty3':
 716                                         if(is_writable('view/smarty3/'))
 717                                                 $this->theme['template_engine'] = 'smarty3';
 718                                         break;
 719                                 default:
 720                                         break;
 721                         }
 722                 }
 723
 724                 function get_template_ldelim($engine = 'internal') {
 725                         return $this->ldelim[$engine];
 726                 }
 727
 728                 function get_template_rdelim($engine = 'internal') {
 729                         return $this->rdelim[$engine];
 730                 }
 731
 732                 function save_timestamp($stamp, $value) {
 733                         $duration = (float)(microtime(true)-$stamp);
 734
 735                         $this->performance[$value] += (float)$duration;
 736                         $this->performance["marktime"] += (float)$duration;
 737                 }
 738
 739                 function mark_timestamp($mark) {
 740                         //$this->performance["markstart"] -= microtime(true) - $this->performance["marktime"];
 741                         $this->performance["markstart"] = microtime(true) - $this->performance["markstart"] - $this->performance["marktime"];
 742                 }
 743         }
 744 }
 745
 746 // retrieve the App structure
 747 // useful in functions which require it but don't get it passed to them
 748
 749 if(! function_exists('get_app')) {
 750         function get_app() {
 751                 global $a;
 752                 return $a;
 753         }
 754 };
 755
 756
 757 // Multi-purpose function to check variable state.
 758 // Usage: x($var) or $x($array,'key')
 759 // returns false if variable/key is not set
 760 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
 761 // e.g. x('') or x(0) returns 0;
 762
 763 if(! function_exists('x')) {
 764         function x($s,$k = NULL) {
 765                 if($k != NULL) {
 766                         if((is_array($s)) && (array_key_exists($k,$s))) {
 767                                 if($s[$k])
 768                                         return (int) 1;
 769                                 return (int) 0;
 770                 }
 771                         return false;
 772                 }
 773                 else {
 774                         if(isset($s)) {
 775                                 if($s) {
 776                                         return (int) 1;
 777                                 }
 778                                 return (int) 0;
 779                         }
 780                         return false;
 781                 }
 782         }
 783 }
 784
 785 // called from db initialisation if db is dead.
 786
 787 if(! function_exists('system_unavailable')) {
 788         function system_unavailable() {
 789                 include('system_unavailable.php');
 790                 system_down();
 791                 killme();
 792         }
 793 }
 794
 795
 796
 797 function clean_urls() {
 798         global $a;
 799         //      if($a->config['system']['clean_urls'])
 800         return true;
 801         //      return false;
 802 }
 803
 804 function z_path() {
 805         global $a;
 806         $base = $a->get_baseurl();
 807         if(! clean_urls())
 808                 $base .= '/?q=';
 809         return $base;
 810 }
 811
 812 function z_root() {
 813         global $a;
 814         return $a->get_baseurl();
 815 }
 816
 817 function absurl($path) {
 818         if(strpos($path,'/') === 0)
 819                 return z_path() . $path;
 820         return $path;
 821 }
 822
 823 function is_ajax() {
 824         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
 825 }
 826
 827 function check_db() {
 828
 829         $build = get_config('system','build');
 830         if(! x($build)) {
 831                 set_config('system','build',DB_UPDATE_VERSION);
 832                 $build = DB_UPDATE_VERSION;
 833         }
 834         if($build != DB_UPDATE_VERSION)
 835                 proc_run('php', 'include/dbupdate.php');
 836
 837 }
 838
 839
 840
 841
 842 // Sets the base url for use in cmdline programs which don't have
 843 // $_SERVER variables
 844
 845 if(! function_exists('check_url')) {
 846         function check_url(&$a) {
 847
 848                 $url = get_config('system','url');
 849
 850                 // if the url isn't set or the stored url is radically different
 851                 // than the currently visited url, store the current value accordingly.
 852                 // "Radically different" ignores common variations such as http vs https
 853                 // and www.example.com vs example.com.
 854                 // We will only change the url to an ip address if there is no existing setting
 855
 856                 if(! x($url))
 857                         $url = set_config('system','url',$a->get_baseurl());
 858                 if((! link_compare($url,$a->get_baseurl())) && (! preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/",$a->get_hostname)))
 859                         $url = set_config('system','url',$a->get_baseurl());
 860
 861                 return;
 862         }
 863 }
 864
 865
 866 // Automatic database updates
 867
 868 if(! function_exists('update_db')) {
 869         function update_db(&$a) {
 870
 871                 $build = get_config('system','build');
 872                 if(! x($build))
 873                         $build = set_config('system','build',DB_UPDATE_VERSION);
 874
 875                 if($build != DB_UPDATE_VERSION) {
 876                         $stored = intval($build);
 877                         $current = intval(DB_UPDATE_VERSION);
 878                         if(($stored < $current) && file_exists('update.php')) {
 879
 880                                 load_config('database');
 881
 882                                 // We're reporting a different version than what is currently installed.
 883                                 // Run any existing update scripts to bring the database up to current.
 884
 885                                 require_once('update.php');
 886
 887                                 // make sure that boot.php and update.php are the same release, we might be
 888                                 // updating right this very second and the correct version of the update.php
 889                                 // file may not be here yet. This can happen on a very busy site.
 890
 891                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
 892
 893                                         for($x = $stored; $x < $current; $x ++) {
 894                                                 if(function_exists('update_' . $x)) {
 895
 896                                                         // There could be a lot of processes running or about to run.
 897                                                         // We want exactly one process to run the update command.
 898                                                         // So store the fact that we're taking responsibility
 899                                                         // after first checking to see if somebody else already has.
 900
 901                                                         // If the update fails or times-out completely you may need to
 902                                                         // delete the config entry to try again.
 903
 904                                                         $t = get_config('database','update_' . $x);
 905                                                         if($t !== false)
 906                                                                 break;
 907                                                         set_config('database','update_' . $x, time());
 908
 909                                                         // call the specific update
 910
 911                                                         $func = 'update_' . $x;
 912                                                         $retval = $func();
 913                                                         if($retval) {
 914                                                                 //send the administrator an e-mail
 915                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
 916                                                                 $email_msg = replace_macros($email_tpl, array(
 917                                                                         '$sitename' => $a->config['sitename'],
 918                                                                         '$siteurl' =>  $a->get_baseurl(),
 919                                                                         '$update' => $x,
 920                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
 921                                                                 ));
 922                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
 923                                                                 require_once('include/email.php');
 924                                                                 $subject = email_header_encode($subject,'UTF-8');
 925                                                                 mail($a->config['admin_email'], $subject, $email_msg,
 926                                                                         'From: ' . 'Administrator' . '@' . $_SERVER['SERVER_NAME'] . "\n"
 927                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
 928                                                                         . 'Content-transfer-encoding: 8bit' );
 929                                                                 //try the logger
 930                                                                 logger('CRITICAL: Update Failed: '. $x);
 931                                                                 break;
 932                                                         }
 933                                                         else {
 934                                                                 set_config('database','update_' . $x, 'success');
 935                                                                 set_config('system','build', $x + 1);
 936                                                         }
 937                                                 }
 938                                         }
 939                                 }
 940                         }
 941                 }
 942
 943                 return;
 944         }
 945 }
 946
 947
 948 if(! function_exists('check_plugins')) {
 949         function check_plugins(&$a) {
 950
 951                 /**
 952                  *
 953                  * Synchronise plugins:
 954                  *
 955                  * $a->config['system']['addon'] contains a comma-separated list of names
 956                  * of plugins/addons which are used on this system.
 957                  * Go through the database list of already installed addons, and if we have
 958                  * an entry, but it isn't in the config list, call the uninstall procedure
 959                  * and mark it uninstalled in the database (for now we'll remove it).
 960                  * Then go through the config list and if we have a plugin that isn't installed,
 961                  * call the install procedure and add it to the database.
 962                  *
 963                  */
 964
 965                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
 966                 if(count($r))
 967                         $installed = $r;
 968                 else
 969                         $installed = array();
 970
 971                 $plugins = get_config('system','addon');
 972                 $plugins_arr = array();
 973
 974                 if($plugins)
 975                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
 976
 977                 $a->plugins = $plugins_arr;
 978
 979                 $installed_arr = array();
 980
 981                 if(count($installed)) {
 982                         foreach($installed as $i) {
 983                                 if(! in_array($i['name'],$plugins_arr)) {
 984                                         uninstall_plugin($i['name']);
 985                                 }
 986                                 else {
 987                                         $installed_arr[] = $i['name'];
 988                                 }
 989                         }
 990                 }
 991
 992                 if(count($plugins_arr)) {
 993                         foreach($plugins_arr as $p) {
 994                                 if(! in_array($p,$installed_arr)) {
 995                                         install_plugin($p);
 996                                 }
 997                         }
 998                 }
 999
1000
1001                 load_hooks();
1002
1003                 return;
1004         }
1005 }
1006
1007
1008 function get_guid($size=16) {
1009         $exists = true; // assume by default that we don't have a unique guid
1010         do {
1011                 $s = random_string($size);
1012                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
1013                 if(! count($r))
1014                         $exists = false;
1015         } while($exists);
1016         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
1017         return $s;
1018 }
1019
1020
1021 // wrapper for adding a login box. If $register == true provide a registration
1022 // link. This will most always depend on the value of $a->config['register_policy'].
1023 // returns the complete html for inserting into the page
1024
1025 if(! function_exists('login')) {
1026         function login($register = false, $hiddens=false) {
1027                 $a = get_app();
1028                 $o = "";
1029                 $reg = false;
1030                 if ($register) {
1031                         $reg = array(
1032                                 'title' => t('Create a New Account'),
1033                                 'desc' => t('Register')
1034                         );
1035                 }
1036
1037                 $noid = get_config('system','no_openid');
1038
1039                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
1040
1041                 if(local_user()) {
1042                         $tpl = get_markup_template("logout.tpl");
1043                 }
1044                 else {
1045                         $a->page['htmlhead'] .= replace_macros(get_markup_template("login_head.tpl"),array(
1046                                 '$baseurl'              => $a->get_baseurl(true)
1047                         ));
1048
1049                         $tpl = get_markup_template("login.tpl");
1050                         $_SESSION['return_url'] = $a->query_string;
1051                         $a->module = 'login';
1052                 }
1053
1054                 $o .= replace_macros($tpl, array(
1055
1056                         '$dest_url'     => $dest_url,
1057                         '$logout'       => t('Logout'),
1058                         '$login'        => t('Login'),
1059
1060                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
1061                         '$lpassword'    => array('password', t('Password: '), '', ''),
1062                         '$lremember'    => array('remember', t('Remember me'), 0, ''),
1063
1064                         '$openid'               => !$noid,
1065                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
1066
1067                         '$hiddens'      => $hiddens,
1068
1069                         '$register'     => $reg,
1070
1071                         '$lostpass'     => t('Forgot your password?'),
1072                         '$lostlink'     => t('Password Reset'),
1073
1074                         '$tostitle'     => t('Website Terms of Service'),
1075                         '$toslink'      => t('terms of service'),
1076
1077                         '$privacytitle' => t('Website Privacy Policy'),
1078                         '$privacylink'  => t('privacy policy'),
1079
1080                 ));
1081
1082                 call_hooks('login_hook',$o);
1083
1084                 return $o;
1085         }
1086 }
1087
1088 // Used to end the current process, after saving session state.
1089
1090 if(! function_exists('killme')) {
1091         function killme() {
1092                 session_write_close();
1093                 exit;
1094         }
1095 }
1096
1097 // redirect to another URL and terminate this process.
1098
1099 if(! function_exists('goaway')) {
1100         function goaway($s) {
1101                 header("Location: $s");
1102                 killme();
1103         }
1104 }
1105
1106
1107 // Returns the uid of locally logged in user or false.
1108
1109 if(! function_exists('local_user')) {
1110         function local_user() {
1111                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1112                         return intval($_SESSION['uid']);
1113                 return false;
1114         }
1115 }
1116
1117 // Returns contact id of authenticated site visitor or false
1118
1119 if(! function_exists('remote_user')) {
1120         function remote_user() {
1121                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1122                         return intval($_SESSION['visitor_id']);
1123                 return false;
1124         }
1125 }
1126
1127 // contents of $s are displayed prominently on the page the next time
1128 // a page is loaded. Usually used for errors or alerts.
1129
1130 if(! function_exists('notice')) {
1131         /**
1132          * Show an error message to user.
1133          *
1134          * This function save text in session, to be shown to the user at next page load
1135          *
1136          * @param string $s - Text of notice
1137          */
1138         function notice($s) {
1139                 $a = get_app();
1140                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
1141                 if($a->interactive)
1142                         $_SESSION['sysmsg'][] = $s;
1143         }
1144 }
1145 if(! function_exists('info')) {
1146         /**
1147          * Show an info message to user.
1148          *
1149          * This function save text in session, to be shown to the user at next page load
1150          *
1151          * @param string $s - Text of notice
1152          */
1153         function info($s) {
1154                 $a = get_app();
1155                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
1156                 if($a->interactive)
1157                         $_SESSION['sysmsg_info'][] = $s;
1158         }
1159 }
1160
1161
1162 // wrapper around config to limit the text length of an incoming message
1163
1164 if(! function_exists('get_max_import_size')) {
1165         function get_max_import_size() {
1166                 global $a;
1167                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1168         }
1169 }
1170
1171
1172
1173 /**
1174  *
1175  * Function : profile_load
1176  * @parameter App    $a
1177  * @parameter string $nickname
1178  * @parameter int    $profile
1179  *
1180  * Summary: Loads a profile into the page sidebar.
1181  * The function requires a writeable copy of the main App structure, and the nickname
1182  * of a registered local account.
1183  *
1184  * If the viewer is an authenticated remote viewer, the profile displayed is the
1185  * one that has been configured for his/her viewing in the Contact manager.
1186  * Passing a non-zero profile ID can also allow a preview of a selected profile
1187  * by the owner.
1188  *
1189  * Profile information is placed in the App structure for later retrieval.
1190  * Honours the owner's chosen theme for display.
1191  *
1192  * IMPORTANT: Should only be run in the _init() functions of a module. That ensures that
1193  * the theme is chosen before the _init() function of a theme is run, which will usually
1194  * load a lot of theme-specific content
1195  *
1196  */
1197
1198 if(! function_exists('profile_load')) {
1199         function profile_load(&$a, $nickname, $profile = 0) {
1200
1201                 $user = q("select uid from user where nickname = '%s' limit 1",
1202                         dbesc($nickname)
1203                 );
1204
1205                 if(! ($user && count($user))) {
1206                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1207                         notice( t('Requested account is not available.') . EOL );
1208                         $a->error = 404;
1209                         return;
1210                 }
1211
1212                 if(remote_user() && count($_SESSION['remote'])) {
1213                         foreach($_SESSION['remote'] as $visitor) {
1214                                 if($visitor['uid'] == $user[0]['uid']) {
1215                                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1216                                                 intval($visitor['cid'])
1217                                         );
1218                                         if(count($r))
1219                                                 $profile = $r[0]['profile-id'];
1220                                         break;
1221                                 }
1222                         }
1223                 }
1224
1225                 $r = null;
1226
1227                 if($profile) {
1228                         $profile_int = intval($profile);
1229                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1230                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1231                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1232                                         dbesc($nickname),
1233                                         intval($profile_int)
1234                         );
1235                 }
1236                 if((! $r) && (!  count($r))) {
1237                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1238                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1239                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1240                                         dbesc($nickname)
1241                         );
1242                 }
1243
1244                 if(($r === false) || (! count($r))) {
1245                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1246                         notice( t('Requested profile is not available.') . EOL );
1247                         $a->error = 404;
1248                         return;
1249                 }
1250
1251                 // fetch user tags if this isn't the default profile
1252
1253                 if(! $r[0]['is-default']) {
1254                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1255                                         intval($r[0]['profile_uid'])
1256                         );
1257                         if($x && count($x))
1258                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1259                 }
1260
1261                 $a->profile = $r[0];
1262
1263                 $a->profile['mobile-theme'] = get_pconfig($a->profile['profile_uid'], 'system', 'mobile_theme');
1264
1265
1266                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1267                 $_SESSION['theme'] = $a->profile['theme'];
1268                 $_SESSION['mobile-theme'] = $a->profile['mobile-theme'];
1269
1270                 /**
1271                  * load/reload current theme info
1272                  */
1273
1274                 $a->set_template_engine(); // reset the template engine to the default in case the user's theme doesn't specify one
1275
1276                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1277                 if (file_exists($theme_info_file)){
1278                         require_once($theme_info_file);
1279                 }
1280
1281                 if(! (x($a->page,'aside')))
1282                         $a->page['aside'] = '';
1283
1284                 if(local_user() && local_user() == $a->profile['uid']) {
1285                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1286                                 '$editprofile' => t('Edit profile'),
1287                                 '$profid' => $a->profile['id']
1288                         ));
1289                 }
1290
1291                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1292
1293                 $a->page['aside'] .= profile_sidebar($a->profile, $block);
1294
1295                 /*if(! $block)
1296                  $a->page['aside'] .= contact_block();*/
1297
1298                 return;
1299         }
1300 }
1301
1302
1303 /**
1304  *
1305  * Function: profile_sidebar
1306  *
1307  * Formats a profile for display in the sidebar.
1308  * It is very difficult to templatise the HTML completely
1309  * because of all the conditional logic.
1310  *
1311  * @parameter: array $profile
1312  *
1313  * Returns HTML string stuitable for sidebar inclusion
1314  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1315  *
1316  */
1317
1318
1319 if(! function_exists('profile_sidebar')) {
1320         function profile_sidebar($profile, $block = 0) {
1321
1322                 $a = get_app();
1323
1324                 $o = '';
1325                 $location = false;
1326                 $address = false;
1327                 $pdesc = true;
1328
1329                 if((! is_array($profile)) && (! count($profile)))
1330                         return $o;
1331
1332                 $profile['picdate'] = urlencode($profile['picdate']);
1333
1334                 call_hooks('profile_sidebar_enter', $profile);
1335
1336
1337                 // don't show connect link to yourself
1338                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1339
1340                 // don't show connect link to authenticated visitors either
1341
1342                 if(remote_user() && count($_SESSION['remote'])) {
1343                         foreach($_SESSION['remote'] as $visitor) {
1344                                 if($visitor['uid'] == $profile['uid']) {
1345                                         $connect = false;
1346                                         break;
1347                                 }
1348                         }
1349                 }
1350
1351                 if( get_my_url() && $profile['unkmail'] && ($profile['uid'] != local_user()) )
1352                         $wallmessage = t('Message');
1353                 else
1354                         $wallmessage = false;
1355
1356
1357
1358                 // show edit profile to yourself
1359                 if ($profile['uid'] == local_user() && feature_enabled(local_user(),'multi_profiles')) {
1360                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1361
1362                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1363                                         local_user());
1364
1365                         $profile['menu'] = array(
1366                                 'chg_photo' => t('Change profile photo'),
1367                                 'cr_new' => t('Create New Profile'),
1368                                 'entries' => array(),
1369                         );
1370
1371                         if(count($r)) {
1372
1373                                 foreach($r as $rr) {
1374                                         $profile['menu']['entries'][] = array(
1375                                                 'photo' => $rr['thumb'],
1376                                                 'id' => $rr['id'],
1377                                                 'alt' => t('Profile Image'),
1378                                                 'profile_name' => $rr['profile-name'],
1379                                                 'isdefault' => $rr['is-default'],
1380                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1381                                                 'edit_visibility' => t('Edit visibility'),
1382
1383                                         );
1384                                 }
1385
1386
1387                         }
1388                 }
1389         if ($profile['uid'] == local_user() && !feature_enabled(local_user(),'multi_profiles')) {
1390             $profile['edit'] = array($a->get_baseurl(). '/profiles/'.$profile['id'], t('Edit profile'),"", t('Edit profile'));
1391                 $profile['menu'] = array(
1392                                 'chg_photo' => t('Change profile photo'),
1393                                 'cr_new' => null,
1394                                 'entries' => array(),
1395                         );
1396         }
1397
1398
1399
1400
1401                 if((x($profile,'address') == 1)
1402                                 || (x($profile,'locality') == 1)
1403                                 || (x($profile,'region') == 1)
1404                                 || (x($profile,'postal-code') == 1)
1405                                 || (x($profile,'country-name') == 1))
1406                         $location = t('Location:');
1407
1408                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1409
1410
1411                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1412
1413                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1414
1415                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1416                         $location = $pdesc = $gender = $marital = $homepage = False;
1417                 }
1418
1419                 $firstname = ((strpos($profile['name'],' '))
1420                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1421                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1422
1423                 $diaspora = array(
1424                         'podloc' => $a->get_baseurl(),
1425                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1426                         'nickname' => $profile['nickname'],
1427                         'fullname' => $profile['name'],
1428                         'firstname' => $firstname,
1429                         'lastname' => $lastname,
1430                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1431                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1432                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1433                 );
1434
1435                 if (!$block){
1436                         $contact_block = contact_block();
1437                 }
1438
1439
1440                 $p = array();
1441                 foreach($profile as $k => $v) {
1442                         $k = str_replace('-','_',$k);
1443                         $p[$k] = $v;
1444                 }
1445
1446                 if($a->theme['template_engine'] === 'internal')
1447                         $location = template_escape($location);
1448
1449
1450                 $tpl = get_markup_template('profile_vcard.tpl');
1451                 $o .= replace_macros($tpl, array(
1452                         '$profile' => $p,
1453                         '$connect'  => $connect,
1454                         '$wallmessage' => $wallmessage,
1455                         '$location' => $location,
1456                         '$gender'   => $gender,
1457                         '$pdesc'        => $pdesc,
1458                         '$marital'  => $marital,
1459                         '$homepage' => $homepage,
1460                         '$diaspora' => $diaspora,
1461                         '$contact_block' => $contact_block,
1462                 ));
1463
1464
1465                 $arr = array('profile' => &$profile, 'entry' => &$o);
1466
1467                 call_hooks('profile_sidebar', $arr);
1468
1469                 return $o;
1470         }
1471 }
1472
1473
1474 if(! function_exists('get_birthdays')) {
1475         function get_birthdays() {
1476
1477                 $a = get_app();
1478                 $o = '';
1479
1480                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1481                         return $o;
1482
1483 //              $mobile_detect = new Mobile_Detect();
1484 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1485
1486 //              if($is_mobile)
1487 //                      return $o;
1488
1489                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1490                 $bd_short = t('F d');
1491
1492                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1493                                 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
1494                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1495                                 ORDER BY `start` ASC ",
1496                                 intval(local_user()),
1497                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1498                                 dbesc(datetime_convert('UTC','UTC','now'))
1499                 );
1500
1501                 if($r && count($r)) {
1502                         $total = 0;
1503                         $now = strtotime('now');
1504                         $cids = array();
1505
1506                         $istoday = false;
1507                         foreach($r as $rr) {
1508                                 if(strlen($rr['name']))
1509                                         $total ++;
1510                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1511                                         $istoday = true;
1512                         }
1513                         $classtoday = $istoday ? ' birthday-today ' : '';
1514                         if($total) {
1515                                 foreach($r as &$rr) {
1516                                         if(! strlen($rr['name']))
1517                                                 continue;
1518
1519                                         // avoid duplicates
1520
1521                                         if(in_array($rr['cid'],$cids))
1522                                                 continue;
1523                                         $cids[] = $rr['cid'];
1524
1525                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1526                                         $sparkle = '';
1527                                         $url = $rr['url'];
1528                                         if($rr['network'] === NETWORK_DFRN) {
1529                                                 $sparkle = " sparkle";
1530                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1531                                         }
1532
1533                                         $rr['link'] = $url;
1534                                         $rr['title'] = $rr['name'];
1535                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1536                                         $rr['startime'] = Null;
1537                                         $rr['today'] = $today;
1538
1539                                 }
1540                         }
1541                 }
1542                 $tpl = get_markup_template("birthdays_reminder.tpl");
1543                 return replace_macros($tpl, array(
1544                         '$baseurl' => $a->get_baseurl(),
1545                         '$classtoday' => $classtoday,
1546                         '$count' => $total,
1547                         '$event_reminders' => t('Birthday Reminders'),
1548                         '$event_title' => t('Birthdays this week:'),
1549                         '$events' => $r,
1550                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1551                         '$rbr' => '}'
1552
1553                 ));
1554         }
1555 }
1556
1557
1558 if(! function_exists('get_events')) {
1559         function get_events() {
1560
1561                 require_once('include/bbcode.php');
1562
1563                 $a = get_app();
1564
1565                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1566                         return $o;
1567
1568
1569 //              $mobile_detect = new Mobile_Detect();
1570 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1571
1572 //              if($is_mobile)
1573 //                      return $o;
1574
1575                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1576                 $bd_short = t('F d');
1577
1578                 $r = q("SELECT `event`.* FROM `event`
1579                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1580                                 ORDER BY `start` ASC ",
1581                                 intval(local_user()),
1582                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1583                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1584                 );
1585
1586                 if($r && count($r)) {
1587                         $now = strtotime('now');
1588                         $istoday = false;
1589                         foreach($r as $rr) {
1590                                 if(strlen($rr['name']))
1591                                         $total ++;
1592
1593                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1594                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1595                                         $istoday = true;
1596                         }
1597                         $classtoday = (($istoday) ? 'event-today' : '');
1598
1599
1600                         foreach($r as &$rr) {
1601                                 if($rr['adjust'])
1602                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1603                                 else
1604                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1605                                 $md .= "/#link-".$rr['id'];
1606
1607                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1608                                 if(! $title)
1609                                         $title = t('[No description]');
1610
1611                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1612                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1613
1614                                 $rr['link'] = $md;
1615                                 $rr['title'] = $title;
1616                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1617                                 $rr['startime'] = $strt;
1618                                 $rr['today'] = $today;
1619                         }
1620                 }
1621
1622                 $tpl = get_markup_template("events_reminder.tpl");
1623                 return replace_macros($tpl, array(
1624                         '$baseurl' => $a->get_baseurl(),
1625                         '$classtoday' => $classtoday,
1626                         '$count' => count($r),
1627                         '$event_reminders' => t('Event Reminders'),
1628                         '$event_title' => t('Events this week:'),
1629                         '$events' => $r,
1630                 ));
1631         }
1632 }
1633
1634
1635 /**
1636  *
1637  * Wrap calls to proc_close(proc_open()) and call hook
1638  * so plugins can take part in process :)
1639  *
1640  * args:
1641  * $cmd program to run
1642  *  next args are passed as $cmd command line
1643  *
1644  * e.g.: proc_run("ls","-la","/tmp");
1645  *
1646  * $cmd and string args are surrounded with ""
1647  */
1648
1649 if(! function_exists('proc_run')) {
1650         function proc_run($cmd){
1651
1652                 $a = get_app();
1653
1654                 $args = func_get_args();
1655
1656                 $newargs = array();
1657                 if(! count($args))
1658                         return;
1659
1660                 // expand any arrays
1661
1662                 foreach($args as $arg) {
1663                         if(is_array($arg)) {
1664                                 foreach($arg as $n) {
1665                                         $newargs[] = $n;
1666                                 }
1667                         }
1668                         else
1669                                 $newargs[] = $arg;
1670                 }
1671
1672                 $args = $newargs;
1673
1674                 $arr = array('args' => $args, 'run_cmd' => true);
1675
1676                 call_hooks("proc_run", $arr);
1677                 if(! $arr['run_cmd'])
1678                         return;
1679
1680                 if(count($args) && $args[0] === 'php')
1681                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1682
1683         // add baseurl to args. cli scripts can't construct it
1684         $args[] = $a->get_baseurl();
1685
1686         for($x = 0; $x < count($args); $x ++)
1687                         $args[$x] = escapeshellarg($args[$x]);
1688
1689
1690
1691                 $cmdline = implode($args," ");
1692                 if(get_config('system','proc_windows'))
1693                         proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
1694                 else
1695                         proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
1696         }
1697 }
1698
1699 if(! function_exists('current_theme')) {
1700         function current_theme(){
1701                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1702
1703                 $a = get_app();
1704
1705 //              $mobile_detect = new Mobile_Detect();
1706 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1707                 $is_mobile = $a->is_mobile || $a->is_tablet;
1708
1709                 if($is_mobile) {
1710                         if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1711                                 $system_theme = '';
1712                                 $theme_name = '';
1713                         }
1714                         else {
1715                                 $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1716                                 $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1717
1718                                 if($theme_name === '---') {
1719                                         // user has selected to have the mobile theme be the same as the normal one
1720                                         $system_theme = '';
1721                                         $theme_name = '';
1722                                 }
1723                         }
1724                 }
1725                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1726                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1727                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1728                 }
1729
1730                 if($theme_name &&
1731                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1732                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1733                         return($theme_name);
1734
1735                 foreach($app_base_themes as $t) {
1736                         if(file_exists('view/theme/' . $t . '/style.css')||
1737                                         file_exists('view/theme/' . $t . '/style.php'))
1738                                 return($t);
1739                 }
1740
1741                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1742                 if(count($fallback))
1743                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1744
1745         }
1746 }
1747
1748 /*
1749  * Return full URL to theme which is currently in effect.
1750 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1751 */
1752 if(! function_exists('current_theme_url')) {
1753         function current_theme_url() {
1754                 global $a;
1755                 $t = current_theme();
1756                 if (file_exists('view/theme/' . $t . '/style.php'))
1757                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1758                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1759         }
1760 }
1761
1762 if(! function_exists('feed_birthday')) {
1763         function feed_birthday($uid,$tz) {
1764
1765                 /**
1766                  *
1767                  * Determine the next birthday, but only if the birthday is published
1768                  * in the default profile. We _could_ also look for a private profile that the
1769                  * recipient can see, but somebody could get mad at us if they start getting
1770                  * public birthday greetings when they haven't made this info public.
1771                  *
1772                  * Assuming we are able to publish this info, we are then going to convert
1773                  * the start time from the owner's timezone to UTC.
1774                  *
1775                  * This will potentially solve the problem found with some social networks
1776                  * where birthdays are converted to the viewer's timezone and salutations from
1777                  * elsewhere in the world show up on the wrong day. We will convert it to the
1778                  * viewer's timezone also, but first we are going to convert it from the birthday
1779                  * person's timezone to GMT - so the viewer may find the birthday starting at
1780                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1781                  *
1782                  */
1783
1784
1785                 $birthday = '';
1786
1787                 if(! strlen($tz))
1788                         $tz = 'UTC';
1789
1790                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1791                                 intval($uid)
1792                 );
1793
1794                 if($p && count($p)) {
1795                         $tmp_dob = substr($p[0]['dob'],5);
1796                         if(intval($tmp_dob)) {
1797                                 $y = datetime_convert($tz,$tz,'now','Y');
1798                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1799                                 $t_dob = strtotime($bd);
1800                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1801                                 if($t_dob < $now)
1802                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1803                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
1804                         }
1805                 }
1806
1807                 return $birthday;
1808         }
1809 }
1810
1811 if(! function_exists('is_site_admin')) {
1812         function is_site_admin() {
1813                 $a = get_app();
1814                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1815                         return true;
1816                 return false;
1817         }
1818 }
1819
1820
1821 if(! function_exists('load_contact_links')) {
1822         function load_contact_links($uid) {
1823
1824                 $a = get_app();
1825
1826                 $ret = array();
1827
1828                 if(! $uid || x($a->contacts,'empty'))
1829                         return;
1830
1831                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
1832                                 intval($uid)
1833                 );
1834                 if(count($r)) {
1835                         foreach($r as $rr){
1836                                 $url = normalise_link($rr['url']);
1837                                 $ret[$url] = $rr;
1838                         }
1839                 }
1840                 else
1841                         $ret['empty'] = true;
1842                 $a->contacts = $ret;
1843                 return;
1844         }
1845 }
1846
1847 if(! function_exists('profile_tabs')){
1848         function profile_tabs($a, $is_owner=False, $nickname=Null){
1849                 //echo "<pre>"; var_dump($a->user); killme();
1850
1851                 if (is_null($nickname))
1852                         $nickname  = $a->user['nickname'];
1853
1854                 if(x($_GET,'tab'))
1855                         $tab = notags(trim($_GET['tab']));
1856
1857                 $url = $a->get_baseurl() . '/profile/' . $nickname;
1858
1859                 $tabs = array(
1860                         array(
1861                                 'label'=>t('Status'),
1862                                 'url' => $url,
1863                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
1864                                 'title' => t('Status Messages and Posts'),
1865                                 'id' => 'status-tab',
1866                         ),
1867                         array(
1868                                 'label' => t('Profile'),
1869                                 'url'   => $url.'/?tab=profile',
1870                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
1871                                 'title' => t('Profile Details'),
1872                                 'id' => 'profile-tab',
1873                         ),
1874                         array(
1875                                 'label' => t('Photos'),
1876                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
1877                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
1878                                 'title' => t('Photo Albums'),
1879                                 'id' => 'photo-tab',
1880                         ),
1881                 );
1882
1883                 if ($is_owner){
1884                         $tabs[] = array(
1885                                 'label' => t('Events'),
1886                                 'url'   => $a->get_baseurl() . '/events',
1887                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
1888                                 'title' => t('Events and Calendar'),
1889                                 'id' => 'events-tab',
1890                         );
1891                         $tabs[] = array(
1892                                 'label' => t('Personal Notes'),
1893                                 'url'   => $a->get_baseurl() . '/notes',
1894                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
1895                                 'title' => t('Only You Can See This'),
1896                                 'id' => 'notes-tab',
1897                         );
1898                 }
1899
1900
1901                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
1902                 call_hooks('profile_tabs', $arr);
1903
1904                 $tpl = get_markup_template('common_tabs.tpl');
1905
1906                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
1907         }
1908 }
1909
1910 function get_my_url() {
1911         if(x($_SESSION,'my_url'))
1912                 return $_SESSION['my_url'];
1913         return false;
1914 }
1915
1916 function zrl_init(&$a) {
1917         $tmp_str = get_my_url();
1918         if(validate_url($tmp_str)) {
1919                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
1920                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
1921                 call_hooks('zrl_init',$arr);
1922         }
1923 }
1924
1925 function zrl($s,$force = false) {
1926         if(! strlen($s))
1927                 return $s;
1928         if((! strpos($s,'/profile/')) && (! $force))
1929                 return $s;
1930         if($force && substr($s,-1,1) !== '/')
1931                 $s = $s . '/';
1932         $achar = strpos($s,'?') ? '&' : '?';
1933         $mine = get_my_url();
1934         if($mine and ! link_compare($mine,$s))
1935                 return $s . $achar . 'zrl=' . urlencode($mine);
1936         return $s;
1937 }
1938
1939 /**
1940 * returns querystring as string from a mapped array
1941 *
1942 * @param params Array
1943 * @return string
1944 */
1945 function build_querystring($params, $name=null) {
1946     $ret = "";
1947     foreach($params as $key=>$val) {
1948         if(is_array($val)) {
1949             if($name==null) {
1950                 $ret .= build_querystring($val, $key);
1951             } else {
1952                 $ret .= build_querystring($val, $name."[$key]");
1953             }
1954         } else {
1955             $val = urlencode($val);
1956             if($name!=null) {
1957                 $ret.=$name."[$key]"."=$val&";
1958             } else {
1959                 $ret.= "$key=$val&";
1960             }
1961         }
1962     }
1963     return $ret;
1964 }
1965
1966 function explode_querystring($query) {
1967         $arg_st = strpos($query, '?');
1968         if($arg_st !== false) {
1969                 $base = substr($query, 0, $arg_st);
1970                 $arg_st += 1;
1971         }
1972         else {
1973                 $base = '';
1974                 $arg_st = 0;
1975         }
1976
1977         $args = explode('&', substr($query, $arg_st));
1978         foreach($args as $k=>$arg) {
1979                 if($arg === '')
1980                         unset($args[$k]);
1981         }
1982         $args = array_values($args);
1983
1984         if(!$base) {
1985                 $base = $args[0];
1986                 unset($args[0]);
1987                 $args = array_values($args);
1988         }
1989
1990         return array(
1991                 'base' => $base,
1992                 'args' => $args,
1993         );
1994 }
1995
1996 /**
1997 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
1998 *
1999 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
2000 */
2001 function curPageURL() {
2002         $pageURL = 'http';
2003         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
2004         $pageURL .= "://";
2005         if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
2006                 $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
2007         } else {
2008                 $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
2009         }
2010         return $pageURL;
2011 }
2012
2013 function random_digits($digits) {
2014         $rn = '';
2015         for($i = 0; $i < $digits; $i++) {
2016                 $rn .= rand(0,9);
2017         }
2018         return $rn;
2019 }
2020
2021 function get_cachefile($file, $writemode = true) {
2022         $cache = get_config("system","itemcache");
2023
2024         if ($cache == "")
2025                 return("");
2026
2027         if (!is_dir($cache))
2028                 return("");
2029
2030         $subfolder = $cache."/".substr($file, 0, 2);
2031
2032         $cachepath = $subfolder."/".$file;
2033
2034         if ($writemode) {
2035                 if (!is_dir($subfolder)) {
2036                         mkdir($subfolder);
2037                         chmod($subfolder, 0777);
2038                 }
2039         }
2040
2041         return($cachepath);
2042 }
2043
2044 function clear_cache($basepath = "", $path = "") {
2045         if ($path == "") {
2046                 $basepath = get_config('system','itemcache');
2047                 $path = $basepath;
2048         }
2049
2050         if (($path == "") OR (!is_dir($path)))
2051                 return;
2052
2053         if (substr(realpath($path), 0, strlen($basepath)) != $basepath)
2054                 return;
2055
2056         $cachetime = (int)get_config('system','itemcache_duration');
2057         if ($cachetime == 0)
2058                 $cachetime = 86400;
2059
2060         if ($dh = opendir($path)) {
2061                 while (($file = readdir($dh)) !== false) {
2062                         $fullpath = $path."/".$file;
2063                         if ((filetype($fullpath) == "dir") and ($file != ".") and ($file != ".."))
2064                                 clear_cache($basepath, $fullpath);
2065                         if ((filetype($fullpath) == "file") and (filectime($fullpath) < (time() - $cachetime)))
2066                                 unlink($fullpath);
2067                 }
2068                 closedir($dh);
2069         }
2070 }
2071
2072 function set_template_engine(&$a, $engine = 'internal') {
2073 // This function is no longer necessary, but keep it as a wrapper to the class method
2074 // to avoid breaking themes again unnecessarily
2075
2076         $a->set_template_engine($engine);
2077 }
2078