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',      '3.1.1583' );
  16 define ( 'DFRN_PROTOCOL_VERSION',  '2.23'    );
  17 define ( 'DB_UPDATE_VERSION',      1157      );
  18
  19 define ( 'EOL',                    "<br />\r\n"     );
  20 define ( 'ATOM_TIME',              'Y-m-d\TH:i:s\Z' );
  21
  22
  23 /**
  24  *
  25  * Image storage quality. Lower numbers save space at cost of image detail.
  26  * For ease of upgrade, please do not change here. Change jpeg quality with
  27  * $a->config['system']['jpeg_quality'] = n;
  28  * in .htconfig.php, where n is netween 1 and 100, and with very poor results
  29  * below about 50
  30  *
  31  */
  32
  33 define ( 'JPEG_QUALITY',            100  );
  34 /**
  35  * $a->config['system']['png_quality'] from 0 (uncompressed) to 9
  36  */
  37 define ( 'PNG_QUALITY',             8  );
  38
  39 /**
  40  *
  41  * An alternate way of limiting picture upload sizes. Specify the maximum pixel
  42  * length that pictures are allowed to be (for non-square pictures, it will apply
  43  * to the longest side). Pictures longer than this length will be resized to be
  44  * this length (on the longest side, the other side will be scaled appropriately).
  45  * Modify this value using
  46  *
  47  *    $a->config['system']['max_image_length'] = n;
  48  *
  49  * in .htconfig.php
  50  *
  51  * If you don't want to set a maximum length, set to -1. The default value is
  52  * defined by 'MAX_IMAGE_LENGTH' below.
  53  *
  54  */
  55 define ( 'MAX_IMAGE_LENGTH',        -1  );
  56
  57
  58 /**
  59  * Not yet used
  60  */
  61
  62 define ( 'DEFAULT_DB_ENGINE',  'MyISAM'  );
  63
  64 /**
  65  * SSL redirection policies
  66  */
  67
  68 define ( 'SSL_POLICY_NONE',         0 );
  69 define ( 'SSL_POLICY_FULL',         1 );
  70 define ( 'SSL_POLICY_SELFSIGN',     2 );
  71
  72
  73 /**
  74  * log levels
  75  */
  76
  77 define ( 'LOGGER_NORMAL',          0 );
  78 define ( 'LOGGER_TRACE',           1 );
  79 define ( 'LOGGER_DEBUG',           2 );
  80 define ( 'LOGGER_DATA',            3 );
  81 define ( 'LOGGER_ALL',             4 );
  82
  83 /**
  84  * registration policies
  85  */
  86
  87 define ( 'REGISTER_CLOSED',        0 );
  88 define ( 'REGISTER_APPROVE',       1 );
  89 define ( 'REGISTER_OPEN',          2 );
  90
  91 /**
  92  * relationship types
  93  */
  94
  95 define ( 'CONTACT_IS_FOLLOWER', 1);
  96 define ( 'CONTACT_IS_SHARING',  2);
  97 define ( 'CONTACT_IS_FRIEND',   3);
  98
  99
 100 /**
 101  * DB update return values
 102  */
 103
 104 define ( 'UPDATE_SUCCESS', 0);
 105 define ( 'UPDATE_FAILED',  1);
 106
 107
 108 /**
 109  *
 110  * page/profile types
 111  *
 112  * PAGE_NORMAL is a typical personal profile account
 113  * PAGE_SOAPBOX automatically approves all friend requests as CONTACT_IS_SHARING, (readonly)
 114  * PAGE_COMMUNITY automatically approves all friend requests as CONTACT_IS_SHARING, but with
 115  *      write access to wall and comments (no email and not included in page owner's ACL lists)
 116  * PAGE_FREELOVE automatically approves all friend requests as full friends (CONTACT_IS_FRIEND).
 117  *
 118  */
 119
 120 define ( 'PAGE_NORMAL',            0 );
 121 define ( 'PAGE_SOAPBOX',           1 );
 122 define ( 'PAGE_COMMUNITY',         2 );
 123 define ( 'PAGE_FREELOVE',          3 );
 124 define ( 'PAGE_BLOG',              4 );
 125 define ( 'PAGE_PRVGROUP',          5 );
 126
 127 /**
 128  * Network and protocol family types
 129  */
 130
 131 define ( 'NETWORK_DFRN',             'dfrn');    // Friendica, Mistpark, other DFRN implementations
 132 define ( 'NETWORK_ZOT',              'zot!');    // Zot!
 133 define ( 'NETWORK_OSTATUS',          'stat');    // status.net, identi.ca, GNU-social, other OStatus implementations
 134 define ( 'NETWORK_FEED',             'feed');    // RSS/Atom feeds with no known "post/notify" protocol
 135 define ( 'NETWORK_DIASPORA',         'dspr');    // Diaspora
 136 define ( 'NETWORK_MAIL',             'mail');    // IMAP/POP
 137 define ( 'NETWORK_MAIL2',            'mai2');    // extended IMAP/POP
 138 define ( 'NETWORK_FACEBOOK',         'face');    // Facebook API
 139 define ( 'NETWORK_LINKEDIN',         'lnkd');    // LinkedIn
 140 define ( 'NETWORK_XMPP',             'xmpp');    // XMPP
 141 define ( 'NETWORK_MYSPACE',          'mysp');    // MySpace
 142 define ( 'NETWORK_GPLUS',            'goog');    // Google+
 143
 144 define ( 'NETWORK_PHANTOM',          'unkn');    // Place holder
 145
 146 /**
 147  * These numbers are used in stored permissions
 148  * and existing allocations MUST NEVER BE CHANGED
 149  * OR RE-ASSIGNED! You may only add to them.
 150  */
 151
 152 $netgroup_ids = array(
 153         NETWORK_DFRN     => (-1),
 154         NETWORK_ZOT      => (-2),
 155         NETWORK_OSTATUS  => (-3),
 156         NETWORK_FEED     => (-4),
 157         NETWORK_DIASPORA => (-5),
 158         NETWORK_MAIL     => (-6),
 159         NETWORK_MAIL2    => (-7),
 160         NETWORK_FACEBOOK => (-8),
 161         NETWORK_LINKEDIN => (-9),
 162         NETWORK_XMPP     => (-10),
 163         NETWORK_MYSPACE  => (-11),
 164         NETWORK_GPLUS    => (-12),
 165
 166         NETWORK_PHANTOM  => (-127),
 167 );
 168
 169
 170 /**
 171  * Maximum number of "people who like (or don't like) this"  that we will list by name
 172  */
 173
 174 define ( 'MAX_LIKERS',    75);
 175
 176 /**
 177  * Communication timeout
 178  */
 179
 180 define ( 'ZCURL_TIMEOUT' , (-1));
 181
 182
 183 /**
 184  * email notification options
 185  */
 186
 187 define ( 'NOTIFY_INTRO',    0x0001 );
 188 define ( 'NOTIFY_CONFIRM',  0x0002 );
 189 define ( 'NOTIFY_WALL',     0x0004 );
 190 define ( 'NOTIFY_COMMENT',  0x0008 );
 191 define ( 'NOTIFY_MAIL',     0x0010 );
 192 define ( 'NOTIFY_SUGGEST',  0x0020 );
 193 define ( 'NOTIFY_PROFILE',  0x0040 );
 194 define ( 'NOTIFY_TAGSELF',  0x0080 );
 195 define ( 'NOTIFY_TAGSHARE', 0x0100 );
 196 define ( 'NOTIFY_POKE',     0x0200 );
 197
 198 define ( 'NOTIFY_SYSTEM',   0x8000 );
 199
 200
 201 /**
 202  * Tag/term types
 203  */
 204
 205 define ( 'TERM_UNKNOWN',   0 );
 206 define ( 'TERM_HASHTAG',   1 );
 207 define ( 'TERM_MENTION',   2 );
 208 define ( 'TERM_CATEGORY',  3 );
 209 define ( 'TERM_PCATEGORY', 4 );
 210 define ( 'TERM_FILE',      5 );
 211
 212 define ( 'TERM_OBJ_POST',  1 );
 213 define ( 'TERM_OBJ_PHOTO', 2 );
 214
 215
 216
 217 /**
 218  * various namespaces we may need to parse
 219  */
 220
 221 define ( 'NAMESPACE_ZOT',             'http://purl.org/zot' );
 222 define ( 'NAMESPACE_DFRN' ,           'http://purl.org/macgirvin/dfrn/1.0' );
 223 define ( 'NAMESPACE_THREAD' ,         'http://purl.org/syndication/thread/1.0' );
 224 define ( 'NAMESPACE_TOMB' ,           'http://purl.org/atompub/tombstones/1.0' );
 225 define ( 'NAMESPACE_ACTIVITY',        'http://activitystrea.ms/spec/1.0/' );
 226 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
 227 define ( 'NAMESPACE_MEDIA',           'http://purl.org/syndication/atommedia' );
 228 define ( 'NAMESPACE_SALMON_ME',       'http://salmon-protocol.org/ns/magic-env' );
 229 define ( 'NAMESPACE_OSTATUSSUB',      'http://ostatus.org/schema/1.0/subscribe' );
 230 define ( 'NAMESPACE_GEORSS',          'http://www.georss.org/georss' );
 231 define ( 'NAMESPACE_POCO',            'http://portablecontacts.net/spec/1.0' );
 232 define ( 'NAMESPACE_FEED',            'http://schemas.google.com/g/2010#updates-from' );
 233 define ( 'NAMESPACE_OSTATUS',         'http://ostatus.org/schema/1.0' );
 234 define ( 'NAMESPACE_STATUSNET',       'http://status.net/schema/api/1/' );
 235 define ( 'NAMESPACE_ATOM1',           'http://www.w3.org/2005/Atom' );
 236 /**
 237  * activity stream defines
 238  */
 239
 240 define ( 'ACTIVITY_LIKE',        NAMESPACE_ACTIVITY_SCHEMA . 'like' );
 241 define ( 'ACTIVITY_DISLIKE',     NAMESPACE_DFRN            . '/dislike' );
 242 define ( 'ACTIVITY_OBJ_HEART',   NAMESPACE_DFRN            . '/heart' );
 243
 244 define ( 'ACTIVITY_FRIEND',      NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
 245 define ( 'ACTIVITY_REQ_FRIEND',  NAMESPACE_ACTIVITY_SCHEMA . 'request-friend' );
 246 define ( 'ACTIVITY_UNFRIEND',    NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend' );
 247 define ( 'ACTIVITY_FOLLOW',      NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
 248 define ( 'ACTIVITY_UNFOLLOW',    NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
 249 define ( 'ACTIVITY_JOIN',        NAMESPACE_ACTIVITY_SCHEMA . 'join' );
 250
 251 define ( 'ACTIVITY_POST',        NAMESPACE_ACTIVITY_SCHEMA . 'post' );
 252 define ( 'ACTIVITY_UPDATE',      NAMESPACE_ACTIVITY_SCHEMA . 'update' );
 253 define ( 'ACTIVITY_TAG',         NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
 254 define ( 'ACTIVITY_FAVORITE',    NAMESPACE_ACTIVITY_SCHEMA . 'favorite' );
 255
 256 define ( 'ACTIVITY_POKE',        NAMESPACE_ZOT . '/activity/poke' );
 257 define ( 'ACTIVITY_MOOD',        NAMESPACE_ZOT . '/activity/mood' );
 258
 259 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
 260 define ( 'ACTIVITY_OBJ_NOTE',    NAMESPACE_ACTIVITY_SCHEMA . 'note' );
 261 define ( 'ACTIVITY_OBJ_PERSON',  NAMESPACE_ACTIVITY_SCHEMA . 'person' );
 262 define ( 'ACTIVITY_OBJ_PHOTO',   NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
 263 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
 264 define ( 'ACTIVITY_OBJ_ALBUM',   NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
 265 define ( 'ACTIVITY_OBJ_EVENT',   NAMESPACE_ACTIVITY_SCHEMA . 'event' );
 266 define ( 'ACTIVITY_OBJ_GROUP',   NAMESPACE_ACTIVITY_SCHEMA . 'group' );
 267 define ( 'ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN            . '/tagterm' );
 268 define ( 'ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN            . '/profile' );
 269
 270 /**
 271  * item weight for query ordering
 272  */
 273
 274 define ( 'GRAVITY_PARENT',       0);
 275 define ( 'GRAVITY_LIKE',         3);
 276 define ( 'GRAVITY_COMMENT',      6);
 277
 278 /**
 279  *
 280  * Reverse the effect of magic_quotes_gpc if it is enabled.
 281  * Please disable magic_quotes_gpc so we don't have to do this.
 282  * See http://php.net/manual/en/security.magicquotes.disabling.php
 283  *
 284  */
 285
 286 function startup() {
 287
 288         error_reporting(E_ERROR | E_WARNING | E_PARSE);
 289
 290         set_time_limit(0);
 291
 292         // This has to be quite large to deal with embedded private photos
 293         ini_set('pcre.backtrack_limit', 500000);
 294
 295
 296         if (get_magic_quotes_gpc()) {
 297                 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
 298                 while (list($key, $val) = each($process)) {
 299                         foreach ($val as $k => $v) {
 300                                 unset($process[$key][$k]);
 301                                 if (is_array($v)) {
 302                                         $process[$key][stripslashes($k)] = $v;
 303                                         $process[] = &$process[$key][stripslashes($k)];
 304                                 } else {
 305                                         $process[$key][stripslashes($k)] = stripslashes($v);
 306                                 }
 307                         }
 308                 }
 309                 unset($process);
 310         }
 311
 312 }
 313
 314 /**
 315  *
 316  * class: App
 317  *
 318  * Our main application structure for the life of this page
 319  * Primarily deals with the URL that got us here
 320  * and tries to make some sense of it, and
 321  * stores our page contents and config storage
 322  * and anything else that might need to be passed around
 323  * before we spit the page out.
 324  *
 325  */
 326
 327 if(! class_exists('App')) {
 328         class App {
 329
 330                 public  $module_loaded = false;
 331                 public  $query_string;
 332                 public  $config;
 333                 public  $page;
 334                 public  $profile;
 335                 public  $user;
 336                 public  $cid;
 337                 public  $contact;
 338                 public  $contacts;
 339                 public  $page_contact;
 340                 public  $content;
 341                 public  $data = array();
 342                 public  $error = false;
 343                 public  $cmd;
 344                 public  $argv;
 345                 public  $argc;
 346                 public  $module;
 347                 public  $pager;
 348                 public  $strings;
 349                 public  $path;
 350                 public  $hooks;
 351                 public  $timezone;
 352                 public  $interactive = true;
 353                 public  $plugins;
 354                 public  $apps = array();
 355                 public  $identities;
 356                 public  $is_mobile;
 357                 public  $is_tablet;
 358
 359                 public $nav_sel;
 360
 361                 public $category;
 362
 363
 364                 // Allow themes to control internal parameters
 365                 // by changing App values in theme.php
 366
 367                 public  $sourcename = '';
 368                 public  $videowidth = 425;
 369                 public  $videoheight = 350;
 370                 public  $force_max_items = 0;
 371                 public  $theme_thread_allow = true;
 372
 373                 // An array for all theme-controllable parameters
 374                 // Mostly unimplemented yet. Only options 'stylesheet' and
 375                 // beyond are used.
 376
 377                 public  $theme = array(
 378                         'sourcename' => '',
 379                         'videowidth' => 425,
 380                         'videoheight' => 350,
 381                         'force_max_items' => 0,
 382                         'thread_allow' => true,
 383                         'stylesheet' => '',
 384                         'template_engine' => 'internal',
 385                 );
 386
 387                 private $ldelim = array(
 388                         'internal' => '',
 389                         'smarty3' => '{{'
 390                 );
 391                 private $rdelim = array(
 392                         'internal' => '',
 393                         'smarty3' => '}}'
 394                 );
 395
 396                 private $scheme;
 397                 private $hostname;
 398                 private $baseurl;
 399                 private $db;
 400
 401                 private $curl_code;
 402                 private $curl_headers;
 403
 404                 private $cached_profile_image;
 405                 private $cached_profile_picdate;
 406
 407                 function __construct() {
 408
 409                         global $default_timezone, $argv, $argc;
 410
 411                         $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
 412
 413                         date_default_timezone_set($this->timezone);
 414
 415                         $this->config = array();
 416                         $this->page = array();
 417                         $this->pager= array();
 418
 419                         $this->query_string = '';
 420
 421                         startup();
 422
 423                         $this->scheme = 'http';
 424                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
 425                                 $this->scheme = 'https';
 426                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
 427                         $this->scheme = 'https';
 428
 429                         if(x($_SERVER,'SERVER_NAME')) {
 430                                 $this->hostname = $_SERVER['SERVER_NAME'];
 431
 432                                 // See bug 437 - this didn't work so disabling it
 433                                 //if(stristr($this->hostname,'xn--')) {
 434                                         // PHP or webserver may have converted idn to punycode, so
 435                                         // convert punycode back to utf-8
 436                                 //      require_once('library/simplepie/idn/idna_convert.class.php');
 437                                 //      $x = new idna_convert();
 438                                 //      $this->hostname = $x->decode($_SERVER['SERVER_NAME']);
 439                                 //}
 440
 441                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
 442                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
 443                                 /**
 444                                  * Figure out if we are running at the top of a domain
 445                                  * or in a sub-directory and adjust accordingly
 446                                  */
 447
 448                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
 449                                 if(isset($path) && strlen($path) && ($path != $this->path))
 450                                         $this->path = $path;
 451                         }
 452                         if (is_array($argv) && $argc>1 && substr(end($argv), 0, 4)=="http" ) {
 453                                 $this->set_baseurl(array_pop($argv) );
 454                                 $argc --;
 455                         }
 456
 457                         set_include_path(
 458                                         "include/$this->hostname" . PATH_SEPARATOR
 459                                         . 'include' . PATH_SEPARATOR
 460                                         . 'library' . PATH_SEPARATOR
 461                                         . 'library/phpsec' . PATH_SEPARATOR
 462                                         . 'library/langdet' . PATH_SEPARATOR
 463                                         . '.' );
 464
 465
 466                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
 467                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
 468                                 // removing trailing / - maybe a nginx problem
 469                                 if (substr($this->query_string, 0, 1) == "/")
 470                                         $this->query_string = substr($this->query_string, 1);
 471                         }
 472                         if(x($_GET,'q'))
 473                                 $this->cmd = trim($_GET['q'],'/\\');
 474
 475                         // unix style "homedir"
 476
 477                         if(substr($this->cmd,0,1) === '~')
 478                                 $this->cmd = 'profile/' . substr($this->cmd,1);
 479
 480                         // Diaspora style profile url
 481
 482                         if(substr($this->cmd,0,2) === 'u/')
 483                                 $this->cmd = 'profile/' . substr($this->cmd,2);
 484
 485                         /**
 486                          *
 487                          * Break the URL path into C style argc/argv style arguments for our
 488                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
 489                          * will be 3 (integer) and $this->argv will contain:
 490                          *   [0] => 'module'
 491                          *   [1] => 'arg1'
 492                          *   [2] => 'arg2'
 493                          *
 494                          *
 495                          * There will always be one argument. If provided a naked domain
 496                          * URL, $this->argv[0] is set to "home".
 497                          *
 498                          */
 499
 500                         $this->argv = explode('/',$this->cmd);
 501                         $this->argc = count($this->argv);
 502                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
 503                                 $this->module = str_replace(".", "_", $this->argv[0]);
 504                                 $this->module = str_replace("-", "_", $this->module);
 505                         }
 506                         else {
 507                                 $this->argc = 1;
 508                                 $this->argv = array('home');
 509                                 $this->module = 'home';
 510                         }
 511
 512                         /**
 513                          * See if there is any page number information, and initialise
 514                          * pagination
 515                          */
 516
 517                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
 518                         $this->pager['itemspage'] = 50;
 519                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 520                         if($this->pager['start'] < 0)
 521                                 $this->pager['start'] = 0;
 522                         $this->pager['total'] = 0;
 523
 524                         /**
 525                          * Detect mobile devices
 526                          */
 527
 528                         $mobile_detect = new Mobile_Detect();
 529                         $this->is_mobile = $mobile_detect->isMobile();
 530                         $this->is_tablet = $mobile_detect->isTablet();
 531                 }
 532
 533                 function get_basepath() {
 534
 535                         $basepath = get_config("system", "basepath");
 536
 537                         if ($basepath == "")
 538                                 $basepath = $_SERVER["DOCUMENT_ROOT"];
 539
 540                         if ($basepath == "")
 541                                 $basepath = $_SERVER["PWD"];
 542
 543                         return($basepath);
 544                 }
 545
 546                 function get_baseurl($ssl = false) {
 547
 548                         $scheme = $this->scheme;
 549
 550                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
 551                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
 552                                         $scheme = 'https';
 553
 554                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
 555                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
 556
 557                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
 558                                         if($ssl)
 559                                                 $scheme = 'https';
 560                                         else
 561                                                 $scheme = 'http';
 562                                 }
 563                         }
 564
 565                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
 566                         return $this->baseurl;
 567                 }
 568
 569                 function set_baseurl($url) {
 570                         $parsed = @parse_url($url);
 571
 572                         $this->baseurl = $url;
 573
 574                         if($parsed) {
 575                                 $this->scheme = $parsed['scheme'];
 576
 577                                 $this->hostname = $parsed['host'];
 578                                 if(x($parsed,'port'))
 579                                         $this->hostname .= ':' . $parsed['port'];
 580                                 if(x($parsed,'path'))
 581                                         $this->path = trim($parsed['path'],'\\/');
 582                         }
 583
 584                 }
 585
 586                 function get_hostname() {
 587                         return $this->hostname;
 588                 }
 589
 590                 function set_hostname($h) {
 591                         $this->hostname = $h;
 592                 }
 593
 594                 function set_path($p) {
 595                         $this->path = trim(trim($p),'/');
 596                 }
 597
 598                 function get_path() {
 599                         return $this->path;
 600                 }
 601
 602                 function set_pager_total($n) {
 603                         $this->pager['total'] = intval($n);
 604                 }
 605
 606                 function set_pager_itemspage($n) {
 607                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
 608                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 609
 610                 }
 611
 612                 function init_pagehead() {
 613                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
 614                         if($interval < 10000)
 615                                 $interval = 40000;
 616
 617                         $this->page['title'] = $this->config['sitename'];
 618
 619                         /* put the head template at the beginning of page['htmlhead']
 620                          * since the code added by the modules frequently depends on it
 621                          * being first
 622                          */
 623                         if(!isset($this->page['htmlhead']))
 624                                 $this->page['htmlhead'] = '';
 625                         $tpl = get_markup_template('head.tpl');
 626
 627                         // If we're using Smarty, then doing replace_macros() will replace
 628                         // any unrecognized variables with a blank string. Since we delay
 629                         // replacing $stylesheet until later, we need to replace it now
 630                         // with another variable name
 631                         if($this->theme['template_engine'] === 'smarty3')
 632                                 $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
 633                         else
 634                                 $stylesheet = '$stylesheet';
 635
 636                         $this->page['htmlhead'] = replace_macros($tpl,array(
 637                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
 638                                 '$local_user' => local_user(),
 639                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
 640                                 '$delitem' => t('Delete this item?'),
 641                                 '$comment' => t('Comment'),
 642                                 '$showmore' => t('show more'),
 643                                 '$showfewer' => t('show fewer'),
 644                                 '$update_interval' => $interval,
 645                                 '$stylesheet' => $stylesheet
 646                         )) . $this->page['htmlhead'];
 647                 }
 648
 649                 function init_page_end() {
 650                         if(!isset($this->page['end']))
 651                                 $this->page['end'] = '';
 652                         $tpl = get_markup_template('end.tpl');
 653                         $this->page['end'] = replace_macros($tpl,array(
 654                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
 655                         )) . $this->page['end'];
 656                 }
 657
 658                 function set_curl_code($code) {
 659                         $this->curl_code = $code;
 660                 }
 661
 662                 function get_curl_code() {
 663                         return $this->curl_code;
 664                 }
 665
 666                 function set_curl_headers($headers) {
 667                         $this->curl_headers = $headers;
 668                 }
 669
 670                 function get_curl_headers() {
 671                         return $this->curl_headers;
 672                 }
 673
 674                 function get_template_engine() {
 675                         return get_template_engine($this);
 676                 }
 677
 678                 function set_template_engine($engine = 'internal') {
 679                         return set_template_engine($this,$engine);
 680                 }
 681
 682                 function get_cached_avatar_image($avatar_image){
 683                         if($this->cached_profile_image[$avatar_image])
 684                                 return $this->cached_profile_image[$avatar_image];
 685
 686                         $path_parts = explode("/",$avatar_image);
 687                         $common_filename = $path_parts[count($path_parts)-1];
 688
 689                         if($this->cached_profile_picdate[$common_filename]){
 690                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 691                         } else {
 692                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like \"%%/%s\"",
 693                                         $common_filename);
 694                                 if(! count($r)){
 695                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
 696                                 } else {
 697                                         $this->cached_profile_picdate[$common_filename] = "?rev=" . urlencode($r[0]['picdate']);
 698                                         $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 699                                 }
 700                         }
 701                         return $this->cached_profile_image[$avatar_image];
 702                 }
 703
 704                 function get_template_engine() {
 705                         return $this->theme['template_engine'];
 706                 }
 707
 708                 function set_template_engine($engine = 'internal') {
 709
 710                         $this->theme['template_engine'] = 'internal';
 711
 712                         switch($engine) {
 713                                 case 'smarty3':
 714                                         if(is_writable('view/smarty3/'))
 715                                                 $this->theme['template_engine'] = 'smarty3';
 716                                         break;
 717                                 default:
 718                                         break;
 719                         }
 720                 }
 721
 722                 function get_template_ldelim($engine = 'internal') {
 723                         return $this->ldelim[$engine];
 724                 }
 725
 726                 function get_template_rdelim($engine = 'internal') {
 727                         return $this->rdelim[$engine];
 728                 }
 729
 730         }
 731 }
 732
 733 // retrieve the App structure
 734 // useful in functions which require it but don't get it passed to them
 735
 736 if(! function_exists('get_app')) {
 737         function get_app() {
 738                 global $a;
 739                 return $a;
 740         }
 741 };
 742
 743
 744 // Multi-purpose function to check variable state.
 745 // Usage: x($var) or $x($array,'key')
 746 // returns false if variable/key is not set
 747 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
 748 // e.g. x('') or x(0) returns 0;
 749
 750 if(! function_exists('x')) {
 751         function x($s,$k = NULL) {
 752                 if($k != NULL) {
 753                         if((is_array($s)) && (array_key_exists($k,$s))) {
 754                                 if($s[$k])
 755                                         return (int) 1;
 756                                 return (int) 0;
 757                 }
 758                         return false;
 759                 }
 760                 else {
 761                         if(isset($s)) {
 762                                 if($s) {
 763                                         return (int) 1;
 764                                 }
 765                                 return (int) 0;
 766                         }
 767                         return false;
 768                 }
 769         }
 770 }
 771
 772 // called from db initialisation if db is dead.
 773
 774 if(! function_exists('system_unavailable')) {
 775         function system_unavailable() {
 776                 include('system_unavailable.php');
 777                 system_down();
 778                 killme();
 779         }
 780 }
 781
 782
 783
 784 function clean_urls() {
 785         global $a;
 786         //      if($a->config['system']['clean_urls'])
 787         return true;
 788         //      return false;
 789 }
 790
 791 function z_path() {
 792         global $a;
 793         $base = $a->get_baseurl();
 794         if(! clean_urls())
 795                 $base .= '/?q=';
 796         return $base;
 797 }
 798
 799 function z_root() {
 800         global $a;
 801         return $a->get_baseurl();
 802 }
 803
 804 function absurl($path) {
 805         if(strpos($path,'/') === 0)
 806                 return z_path() . $path;
 807         return $path;
 808 }
 809
 810 function is_ajax() {
 811         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
 812 }
 813
 814
 815 // Primarily involved with database upgrade, but also sets the
 816 // base url for use in cmdline programs which don't have
 817 // $_SERVER variables, and synchronising the state of installed plugins.
 818
 819
 820 if(! function_exists('check_config')) {
 821         function check_config(&$a) {
 822
 823                 $build = get_config('system','build');
 824                 if(! x($build))
 825                         $build = set_config('system','build',DB_UPDATE_VERSION);
 826
 827                 $url = get_config('system','url');
 828
 829                 // if the url isn't set or the stored url is radically different
 830                 // than the currently visited url, store the current value accordingly.
 831                 // "Radically different" ignores common variations such as http vs https
 832                 // and www.example.com vs example.com.
 833                 // We will only change the url to an ip address if there is no existing setting
 834
 835                 if(! x($url))
 836                         $url = set_config('system','url',$a->get_baseurl());
 837                 if((! link_compare($url,$a->get_baseurl())) && (! preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/",$a->get_hostname)))
 838                         $url = set_config('system','url',$a->get_baseurl());
 839
 840
 841                 if($build != DB_UPDATE_VERSION) {
 842                         $stored = intval($build);
 843                         $current = intval(DB_UPDATE_VERSION);
 844                         if(($stored < $current) && file_exists('update.php')) {
 845
 846                                 load_config('database');
 847
 848                                 // We're reporting a different version than what is currently installed.
 849                                 // Run any existing update scripts to bring the database up to current.
 850
 851                                 require_once('update.php');
 852
 853                                 // make sure that boot.php and update.php are the same release, we might be
 854                                 // updating right this very second and the correct version of the update.php
 855                                 // file may not be here yet. This can happen on a very busy site.
 856
 857                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
 858
 859                                         for($x = $stored; $x < $current; $x ++) {
 860                                                 if(function_exists('update_' . $x)) {
 861
 862                                                         // There could be a lot of processes running or about to run.
 863                                                         // We want exactly one process to run the update command.
 864                                                         // So store the fact that we're taking responsibility
 865                                                         // after first checking to see if somebody else already has.
 866
 867                                                         // If the update fails or times-out completely you may need to
 868                                                         // delete the config entry to try again.
 869
 870                                                         $t = get_config('database','update_' . $x);
 871                                                         if($t !== false)
 872                                                                 break;
 873                                                         set_config('database','update_' . $x, time());
 874
 875                                                         // call the specific update
 876
 877                                                         $func = 'update_' . $x;
 878                                                         $retval = $func();
 879                                                         if($retval) {
 880                                                                 //send the administrator an e-mail
 881                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
 882                                                                 $email_msg = replace_macros($email_tpl, array(
 883                                                                         '$sitename' => $a->config['sitename'],
 884                                                                         '$siteurl' =>  $a->get_baseurl(),
 885                                                                         '$update' => $x,
 886                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
 887                                                                 ));
 888                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
 889                                                                 require_once('include/email.php');
 890                                                                 $subject = email_header_encode($subject,'UTF-8');
 891                                                                 mail($a->config['admin_email'], $subject, $email_msg,
 892                                                                         'From: ' . 'Administrator' . '@' . $_SERVER['SERVER_NAME'] . "\n"
 893                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
 894                                                                         . 'Content-transfer-encoding: 8bit' );
 895                                                                 //try the logger
 896                                                                 logger('CRITICAL: Update Failed: '. $x);
 897                                                                 break;
 898                                                         }
 899                                                         else {
 900                                                                 set_config('database','update_' . $x, 'success');
 901                                                                 set_config('system','build', $x + 1);
 902                                                         }
 903                                                 }
 904                                         }
 905                                 }
 906                         }
 907                 }
 908
 909                 /**
 910                  *
 911                  * Synchronise plugins:
 912                  *
 913                  * $a->config['system']['addon'] contains a comma-separated list of names
 914                  * of plugins/addons which are used on this system.
 915                  * Go through the database list of already installed addons, and if we have
 916                  * an entry, but it isn't in the config list, call the uninstall procedure
 917                  * and mark it uninstalled in the database (for now we'll remove it).
 918                  * Then go through the config list and if we have a plugin that isn't installed,
 919                  * call the install procedure and add it to the database.
 920                  *
 921                  */
 922
 923                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
 924                 if(count($r))
 925                         $installed = $r;
 926                 else
 927                         $installed = array();
 928
 929                 $plugins = get_config('system','addon');
 930                 $plugins_arr = array();
 931
 932                 if($plugins)
 933                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
 934
 935                 $a->plugins = $plugins_arr;
 936
 937                 $installed_arr = array();
 938
 939                 if(count($installed)) {
 940                         foreach($installed as $i) {
 941                                 if(! in_array($i['name'],$plugins_arr)) {
 942                                         uninstall_plugin($i['name']);
 943                                 }
 944                                 else {
 945                                         $installed_arr[] = $i['name'];
 946                                 }
 947                         }
 948                 }
 949
 950                 if(count($plugins_arr)) {
 951                         foreach($plugins_arr as $p) {
 952                                 if(! in_array($p,$installed_arr)) {
 953                                         install_plugin($p);
 954                                 }
 955                         }
 956                 }
 957
 958
 959                 load_hooks();
 960
 961                 return;
 962         }
 963 }
 964
 965
 966 function get_guid($size=16) {
 967         $exists = true; // assume by default that we don't have a unique guid
 968         do {
 969                 $s = random_string($size);
 970                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
 971                 if(! count($r))
 972                         $exists = false;
 973         } while($exists);
 974         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
 975         return $s;
 976 }
 977
 978
 979 // wrapper for adding a login box. If $register == true provide a registration
 980 // link. This will most always depend on the value of $a->config['register_policy'].
 981 // returns the complete html for inserting into the page
 982
 983 if(! function_exists('login')) {
 984         function login($register = false, $hiddens=false) {
 985                 $a = get_app();
 986                 $o = "";
 987                 $reg = false;
 988                 if ($register) {
 989                         $reg = array(
 990                                 'title' => t('Create a New Account'),
 991                                 'desc' => t('Register')
 992                         );
 993                 }
 994
 995                 $noid = get_config('system','no_openid');
 996
 997                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
 998
 999                 if(local_user()) {
1000                         $tpl = get_markup_template("logout.tpl");
1001                 }
1002                 else {
1003                         $a->page['htmlhead'] .= replace_macros(get_markup_template("login_head.tpl"),array(
1004                                 '$baseurl'              => $a->get_baseurl(true)
1005                         ));
1006
1007                         $tpl = get_markup_template("login.tpl");
1008                         $_SESSION['return_url'] = $a->query_string;
1009                         $a->module = 'login';
1010                 }
1011
1012                 $o .= replace_macros($tpl, array(
1013
1014                         '$dest_url'     => $dest_url,
1015                         '$logout'       => t('Logout'),
1016                         '$login'        => t('Login'),
1017
1018                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
1019                         '$lpassword'    => array('password', t('Password: '), '', ''),
1020                         '$lremember'    => array('remember', t('Remember me'), 0, ''),
1021
1022                         '$openid'               => !$noid,
1023                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
1024
1025                         '$hiddens'      => $hiddens,
1026
1027                         '$register'     => $reg,
1028
1029                         '$lostpass'     => t('Forgot your password?'),
1030                         '$lostlink'     => t('Password Reset'),
1031
1032                         '$tostitle'     => t('Website Terms of Service'),
1033                         '$toslink'      => t('terms of service'),
1034
1035                         '$privacytitle' => t('Website Privacy Policy'),
1036                         '$privacylink'  => t('privacy policy'),
1037
1038                 ));
1039
1040                 call_hooks('login_hook',$o);
1041
1042                 return $o;
1043         }
1044 }
1045
1046 // Used to end the current process, after saving session state.
1047
1048 if(! function_exists('killme')) {
1049         function killme() {
1050                 session_write_close();
1051                 exit;
1052         }
1053 }
1054
1055 // redirect to another URL and terminate this process.
1056
1057 if(! function_exists('goaway')) {
1058         function goaway($s) {
1059                 header("Location: $s");
1060                 killme();
1061         }
1062 }
1063
1064
1065 // Returns the uid of locally logged in user or false.
1066
1067 if(! function_exists('local_user')) {
1068         function local_user() {
1069                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1070                         return intval($_SESSION['uid']);
1071                 return false;
1072         }
1073 }
1074
1075 // Returns contact id of authenticated site visitor or false
1076
1077 if(! function_exists('remote_user')) {
1078         function remote_user() {
1079                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1080                         return intval($_SESSION['visitor_id']);
1081                 return false;
1082         }
1083 }
1084
1085 // contents of $s are displayed prominently on the page the next time
1086 // a page is loaded. Usually used for errors or alerts.
1087
1088 if(! function_exists('notice')) {
1089         /**
1090          * Show an error message to user.
1091          *
1092          * This function save text in session, to be shown to the user at next page load
1093          *
1094          * @param string $s - Text of notice
1095          */
1096         function notice($s) {
1097                 $a = get_app();
1098                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
1099                 if($a->interactive)
1100                         $_SESSION['sysmsg'][] = $s;
1101         }
1102 }
1103 if(! function_exists('info')) {
1104         /**
1105          * Show an info message to user.
1106          *
1107          * This function save text in session, to be shown to the user at next page load
1108          *
1109          * @param string $s - Text of notice
1110          */
1111         function info($s) {
1112                 $a = get_app();
1113                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
1114                 if($a->interactive)
1115                         $_SESSION['sysmsg_info'][] = $s;
1116         }
1117 }
1118
1119
1120 // wrapper around config to limit the text length of an incoming message
1121
1122 if(! function_exists('get_max_import_size')) {
1123         function get_max_import_size() {
1124                 global $a;
1125                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1126         }
1127 }
1128
1129
1130
1131 /**
1132  *
1133  * Function : profile_load
1134  * @parameter App    $a
1135  * @parameter string $nickname
1136  * @parameter int    $profile
1137  *
1138  * Summary: Loads a profile into the page sidebar.
1139  * The function requires a writeable copy of the main App structure, and the nickname
1140  * of a registered local account.
1141  *
1142  * If the viewer is an authenticated remote viewer, the profile displayed is the
1143  * one that has been configured for his/her viewing in the Contact manager.
1144  * Passing a non-zero profile ID can also allow a preview of a selected profile
1145  * by the owner.
1146  *
1147  * Profile information is placed in the App structure for later retrieval.
1148  * Honours the owner's chosen theme for display.
1149  *
1150  * IMPORTANT: Should only be run in the _init() functions of a module. That ensures that
1151  * the theme is chosen before the _init() function of a theme is run, which will usually
1152  * load a lot of theme-specific content
1153  *
1154  */
1155
1156 if(! function_exists('profile_load')) {
1157         function profile_load(&$a, $nickname, $profile = 0) {
1158
1159                 $user = q("select uid from user where nickname = '%s' limit 1",
1160                         dbesc($nickname)
1161                 );
1162
1163                 if(! ($user && count($user))) {
1164                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1165                         notice( t('Requested account is not available.') . EOL );
1166                         $a->error = 404;
1167                         return;
1168                 }
1169
1170                 if(remote_user() && count($_SESSION['remote'])) {
1171                         foreach($_SESSION['remote'] as $visitor) {
1172                                 if($visitor['uid'] == $user[0]['uid']) {
1173                                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1174                                                 intval($visitor['cid'])
1175                                         );
1176                                         if(count($r))
1177                                                 $profile = $r[0]['profile-id'];
1178                                         break;
1179                                 }
1180                         }
1181                 }
1182
1183                 $r = null;
1184
1185                 if($profile) {
1186                         $profile_int = intval($profile);
1187                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1188                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1189                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1190                                         dbesc($nickname),
1191                                         intval($profile_int)
1192                         );
1193                 }
1194                 if((! $r) && (!  count($r))) {
1195                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1196                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1197                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1198                                         dbesc($nickname)
1199                         );
1200                 }
1201
1202                 if(($r === false) || (! count($r))) {
1203                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1204                         notice( t('Requested profile is not available.') . EOL );
1205                         $a->error = 404;
1206                         return;
1207                 }
1208
1209                 // fetch user tags if this isn't the default profile
1210
1211                 if(! $r[0]['is-default']) {
1212                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1213                                         intval($r[0]['profile_uid'])
1214                         );
1215                         if($x && count($x))
1216                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1217                 }
1218
1219                 $a->profile = $r[0];
1220
1221                 $a->profile['mobile-theme'] = get_pconfig($a->profile['profile_uid'], 'system', 'mobile_theme');
1222
1223
1224                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1225                 $_SESSION['theme'] = $a->profile['theme'];
1226                 $_SESSION['mobile-theme'] = $a->profile['mobile-theme'];
1227
1228                 /**
1229                  * load/reload current theme info
1230                  */
1231
1232                 $a->set_template_engine(); // reset the template engine to the default in case the user's theme doesn't specify one
1233
1234                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1235                 if (file_exists($theme_info_file)){
1236                         require_once($theme_info_file);
1237                 }
1238
1239                 if(! (x($a->page,'aside')))
1240                         $a->page['aside'] = '';
1241
1242                 if(local_user() && local_user() == $a->profile['uid']) {
1243                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1244                                 '$editprofile' => t('Edit profile'),
1245                                 '$profid' => $a->profile['id']
1246                         ));
1247                 }
1248
1249                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1250
1251                 $a->page['aside'] .= profile_sidebar($a->profile, $block);
1252
1253                 /*if(! $block)
1254                  $a->page['aside'] .= contact_block();*/
1255
1256                 return;
1257         }
1258 }
1259
1260
1261 /**
1262  *
1263  * Function: profile_sidebar
1264  *
1265  * Formats a profile for display in the sidebar.
1266  * It is very difficult to templatise the HTML completely
1267  * because of all the conditional logic.
1268  *
1269  * @parameter: array $profile
1270  *
1271  * Returns HTML string stuitable for sidebar inclusion
1272  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1273  *
1274  */
1275
1276
1277 if(! function_exists('profile_sidebar')) {
1278         function profile_sidebar($profile, $block = 0) {
1279
1280                 $a = get_app();
1281
1282                 $o = '';
1283                 $location = false;
1284                 $address = false;
1285                 $pdesc = true;
1286
1287                 if((! is_array($profile)) && (! count($profile)))
1288                         return $o;
1289
1290                 $profile['picdate'] = urlencode($profile['picdate']);
1291
1292                 call_hooks('profile_sidebar_enter', $profile);
1293
1294
1295                 // don't show connect link to yourself
1296                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1297
1298                 // don't show connect link to authenticated visitors either
1299
1300                 if(remote_user() && count($_SESSION['remote'])) {
1301                         foreach($_SESSION['remote'] as $visitor) {
1302                                 if($visitor['uid'] == $profile['uid']) {
1303                                         $connect = false;
1304                                         break;
1305                                 }
1306                         }
1307                 }
1308
1309                 if(get_my_url() && $profile['unkmail'])
1310                         $wallmessage = t('Message');
1311                 else
1312                         $wallmessage = false;
1313
1314
1315
1316                 // show edit profile to yourself
1317                 if ($profile['uid'] == local_user() && feature_enabled(local_user(),'multi_profiles')) {
1318                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1319
1320                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1321                                         local_user());
1322
1323                         $profile['menu'] = array(
1324                                 'chg_photo' => t('Change profile photo'),
1325                                 'cr_new' => t('Create New Profile'),
1326                                 'entries' => array(),
1327                         );
1328
1329                         if(count($r)) {
1330
1331                                 foreach($r as $rr) {
1332                                         $profile['menu']['entries'][] = array(
1333                                                 'photo' => $rr['thumb'],
1334                                                 'id' => $rr['id'],
1335                                                 'alt' => t('Profile Image'),
1336                                                 'profile_name' => $rr['profile-name'],
1337                                                 'isdefault' => $rr['is-default'],
1338                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1339                                                 'edit_visibility' => t('Edit visibility'),
1340
1341                                         );
1342                                 }
1343
1344
1345                         }
1346
1347
1348                 }
1349
1350
1351
1352
1353                 if((x($profile,'address') == 1)
1354                                 || (x($profile,'locality') == 1)
1355                                 || (x($profile,'region') == 1)
1356                                 || (x($profile,'postal-code') == 1)
1357                                 || (x($profile,'country-name') == 1))
1358                         $location = t('Location:');
1359
1360                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1361
1362
1363                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1364
1365                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1366
1367                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1368                         $location = $pdesc = $gender = $marital = $homepage = False;
1369                 }
1370
1371                 $firstname = ((strpos($profile['name'],' '))
1372                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1373                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1374
1375                 $diaspora = array(
1376                         'podloc' => $a->get_baseurl(),
1377                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1378                         'nickname' => $profile['nickname'],
1379                         'fullname' => $profile['name'],
1380                         'firstname' => $firstname,
1381                         'lastname' => $lastname,
1382                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1383                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1384                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1385                 );
1386
1387                 if (!$block){
1388                         $contact_block = contact_block();
1389                 }
1390
1391
1392                 $tpl = get_markup_template('profile_vcard.tpl');
1393
1394                 $p = array();
1395                 foreach($profile as $k => $v) {
1396                         $k = str_replace('-','_',$k);
1397                         $p[$k] = $v;
1398                 }
1399
1400                 if($a->theme['template_engine'] === 'internal')
1401                         $location = template_escape($location);
1402
1403                 $o .= replace_macros($tpl, array(
1404                         '$profile' => $p,
1405                         '$connect'  => $connect,
1406                         '$wallmessage' => $wallmessage,
1407                         '$location' => $location,
1408                         '$gender'   => $gender,
1409                         '$pdesc'        => $pdesc,
1410                         '$marital'  => $marital,
1411                         '$homepage' => $homepage,
1412                         '$diaspora' => $diaspora,
1413                         '$contact_block' => $contact_block,
1414                 ));
1415
1416
1417                 $arr = array('profile' => &$profile, 'entry' => &$o);
1418
1419                 call_hooks('profile_sidebar', $arr);
1420
1421                 return $o;
1422         }
1423 }
1424
1425
1426 if(! function_exists('get_birthdays')) {
1427         function get_birthdays() {
1428
1429                 $a = get_app();
1430                 $o = '';
1431
1432                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1433                         return $o;
1434
1435 //              $mobile_detect = new Mobile_Detect();
1436 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1437
1438 //              if($is_mobile)
1439 //                      return $o;
1440
1441                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1442                 $bd_short = t('F d');
1443
1444                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1445                                 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
1446                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1447                                 ORDER BY `start` ASC ",
1448                                 intval(local_user()),
1449                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1450                                 dbesc(datetime_convert('UTC','UTC','now'))
1451                 );
1452
1453                 if($r && count($r)) {
1454                         $total = 0;
1455                         $now = strtotime('now');
1456                         $cids = array();
1457
1458                         $istoday = false;
1459                         foreach($r as $rr) {
1460                                 if(strlen($rr['name']))
1461                                         $total ++;
1462                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1463                                         $istoday = true;
1464                         }
1465                         $classtoday = $istoday ? ' birthday-today ' : '';
1466                         if($total) {
1467                                 foreach($r as &$rr) {
1468                                         if(! strlen($rr['name']))
1469                                                 continue;
1470
1471                                         // avoid duplicates
1472
1473                                         if(in_array($rr['cid'],$cids))
1474                                                 continue;
1475                                         $cids[] = $rr['cid'];
1476
1477                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1478                                         $sparkle = '';
1479                                         $url = $rr['url'];
1480                                         if($rr['network'] === NETWORK_DFRN) {
1481                                                 $sparkle = " sparkle";
1482                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1483                                         }
1484
1485                                         $rr['link'] = $url;
1486                                         $rr['title'] = $rr['name'];
1487                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1488                                         $rr['startime'] = Null;
1489                                         $rr['today'] = $today;
1490
1491                                 }
1492                         }
1493                 }
1494                 $tpl = get_markup_template("birthdays_reminder.tpl");
1495                 return replace_macros($tpl, array(
1496                         '$baseurl' => $a->get_baseurl(),
1497                         '$classtoday' => $classtoday,
1498                         '$count' => $total,
1499                         '$event_reminders' => t('Birthday Reminders'),
1500                         '$event_title' => t('Birthdays this week:'),
1501                         '$events' => $r,
1502                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1503                         '$rbr' => '}'
1504
1505                 ));
1506         }
1507 }
1508
1509
1510 if(! function_exists('get_events')) {
1511         function get_events() {
1512
1513                 require_once('include/bbcode.php');
1514
1515                 $a = get_app();
1516
1517                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1518                         return $o;
1519
1520
1521 //              $mobile_detect = new Mobile_Detect();
1522 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1523
1524 //              if($is_mobile)
1525 //                      return $o;
1526
1527                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1528                 $bd_short = t('F d');
1529
1530                 $r = q("SELECT `event`.* FROM `event`
1531                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1532                                 ORDER BY `start` ASC ",
1533                                 intval(local_user()),
1534                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1535                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1536                 );
1537
1538                 if($r && count($r)) {
1539                         $now = strtotime('now');
1540                         $istoday = false;
1541                         foreach($r as $rr) {
1542                                 if(strlen($rr['name']))
1543                                         $total ++;
1544
1545                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1546                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1547                                         $istoday = true;
1548                         }
1549                         $classtoday = (($istoday) ? 'event-today' : '');
1550
1551
1552                         foreach($r as &$rr) {
1553                                 if($rr['adjust'])
1554                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1555                                 else
1556                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1557                                 $md .= "/#link-".$rr['id'];
1558
1559                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1560                                 if(! $title)
1561                                         $title = t('[No description]');
1562
1563                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1564                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1565
1566                                 $rr['link'] = $md;
1567                                 $rr['title'] = $title;
1568                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1569                                 $rr['startime'] = $strt;
1570                                 $rr['today'] = $today;
1571                         }
1572                 }
1573
1574                 $tpl = get_markup_template("events_reminder.tpl");
1575                 return replace_macros($tpl, array(
1576                         '$baseurl' => $a->get_baseurl(),
1577                         '$classtoday' => $classtoday,
1578                         '$count' => count($r),
1579                         '$event_reminders' => t('Event Reminders'),
1580                         '$event_title' => t('Events this week:'),
1581                         '$events' => $r,
1582                 ));
1583         }
1584 }
1585
1586
1587 /**
1588  *
1589  * Wrap calls to proc_close(proc_open()) and call hook
1590  * so plugins can take part in process :)
1591  *
1592  * args:
1593  * $cmd program to run
1594  *  next args are passed as $cmd command line
1595  *
1596  * e.g.: proc_run("ls","-la","/tmp");
1597  *
1598  * $cmd and string args are surrounded with ""
1599  */
1600
1601 if(! function_exists('proc_run')) {
1602         function proc_run($cmd){
1603
1604                 $a = get_app();
1605
1606                 $args = func_get_args();
1607
1608                 $newargs = array();
1609                 if(! count($args))
1610                         return;
1611
1612                 // expand any arrays
1613
1614                 foreach($args as $arg) {
1615                         if(is_array($arg)) {
1616                                 foreach($arg as $n) {
1617                                         $newargs[] = $n;
1618                                 }
1619                         }
1620                         else
1621                                 $newargs[] = $arg;
1622                 }
1623
1624                 $args = $newargs;
1625
1626                 $arr = array('args' => $args, 'run_cmd' => true);
1627
1628                 call_hooks("proc_run", $arr);
1629                 if(! $arr['run_cmd'])
1630                         return;
1631
1632                 if(count($args) && $args[0] === 'php')
1633                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1634
1635         // add baseurl to args. cli scripts can't construct it
1636         $args[] = $a->get_baseurl();
1637
1638         for($x = 0; $x < count($args); $x ++)
1639                         $args[$x] = escapeshellarg($args[$x]);
1640
1641
1642
1643                 $cmdline = implode($args," ");
1644                 if(get_config('system','proc_windows'))
1645                         proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
1646                 else
1647                         proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
1648         }
1649 }
1650
1651 if(! function_exists('current_theme')) {
1652         function current_theme(){
1653                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1654
1655                 $a = get_app();
1656
1657 //              $mobile_detect = new Mobile_Detect();
1658 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1659                 $is_mobile = $a->is_mobile || $a->is_tablet;
1660
1661                 if($is_mobile) {
1662                         if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1663                                 $system_theme = '';
1664                                 $theme_name = '';
1665                         }
1666                         else {
1667                                 $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1668                                 $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1669
1670                                 if($theme_name === '---') {
1671                                         // user has selected to have the mobile theme be the same as the normal one
1672                                         $system_theme = '';
1673                                         $theme_name = '';
1674                                 }
1675                         }
1676                 }
1677                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1678                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1679                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1680                 }
1681
1682                 if($theme_name &&
1683                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1684                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1685                         return($theme_name);
1686
1687                 foreach($app_base_themes as $t) {
1688                         if(file_exists('view/theme/' . $t . '/style.css')||
1689                                         file_exists('view/theme/' . $t . '/style.php'))
1690                                 return($t);
1691                 }
1692
1693                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1694                 if(count($fallback))
1695                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1696
1697         }
1698 }
1699
1700 /*
1701  * Return full URL to theme which is currently in effect.
1702 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1703 */
1704 if(! function_exists('current_theme_url')) {
1705         function current_theme_url() {
1706                 global $a;
1707                 $t = current_theme();
1708                 if (file_exists('view/theme/' . $t . '/style.php'))
1709                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1710                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1711         }
1712 }
1713
1714 if(! function_exists('feed_birthday')) {
1715         function feed_birthday($uid,$tz) {
1716
1717                 /**
1718                  *
1719                  * Determine the next birthday, but only if the birthday is published
1720                  * in the default profile. We _could_ also look for a private profile that the
1721                  * recipient can see, but somebody could get mad at us if they start getting
1722                  * public birthday greetings when they haven't made this info public.
1723                  *
1724                  * Assuming we are able to publish this info, we are then going to convert
1725                  * the start time from the owner's timezone to UTC.
1726                  *
1727                  * This will potentially solve the problem found with some social networks
1728                  * where birthdays are converted to the viewer's timezone and salutations from
1729                  * elsewhere in the world show up on the wrong day. We will convert it to the
1730                  * viewer's timezone also, but first we are going to convert it from the birthday
1731                  * person's timezone to GMT - so the viewer may find the birthday starting at
1732                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1733                  *
1734                  */
1735
1736
1737                 $birthday = '';
1738
1739                 if(! strlen($tz))
1740                         $tz = 'UTC';
1741
1742                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1743                                 intval($uid)
1744                 );
1745
1746                 if($p && count($p)) {
1747                         $tmp_dob = substr($p[0]['dob'],5);
1748                         if(intval($tmp_dob)) {
1749                                 $y = datetime_convert($tz,$tz,'now','Y');
1750                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1751                                 $t_dob = strtotime($bd);
1752                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1753                                 if($t_dob < $now)
1754                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1755                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
1756                         }
1757                 }
1758
1759                 return $birthday;
1760         }
1761 }
1762
1763 if(! function_exists('is_site_admin')) {
1764         function is_site_admin() {
1765                 $a = get_app();
1766                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1767                         return true;
1768                 return false;
1769         }
1770 }
1771
1772
1773 if(! function_exists('load_contact_links')) {
1774         function load_contact_links($uid) {
1775
1776                 $a = get_app();
1777
1778                 $ret = array();
1779
1780                 if(! $uid || x($a->contacts,'empty'))
1781                         return;
1782
1783                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
1784                                 intval($uid)
1785                 );
1786                 if(count($r)) {
1787                         foreach($r as $rr){
1788                                 $url = normalise_link($rr['url']);
1789                                 $ret[$url] = $rr;
1790                         }
1791                 }
1792                 else
1793                         $ret['empty'] = true;
1794                 $a->contacts = $ret;
1795                 return;
1796         }
1797 }
1798
1799 if(! function_exists('profile_tabs')){
1800         function profile_tabs($a, $is_owner=False, $nickname=Null){
1801                 //echo "<pre>"; var_dump($a->user); killme();
1802
1803                 if (is_null($nickname))
1804                         $nickname  = $a->user['nickname'];
1805
1806                 if(x($_GET,'tab'))
1807                         $tab = notags(trim($_GET['tab']));
1808
1809                 $url = $a->get_baseurl() . '/profile/' . $nickname;
1810
1811                 $tabs = array(
1812                         array(
1813                                 'label'=>t('Status'),
1814                                 'url' => $url,
1815                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
1816                                 'title' => t('Status Messages and Posts'),
1817                                 'id' => 'status-tab',
1818                         ),
1819                         array(
1820                                 'label' => t('Profile'),
1821                                 'url'   => $url.'/?tab=profile',
1822                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
1823                                 'title' => t('Profile Details'),
1824                                 'id' => 'profile-tab',
1825                         ),
1826                         array(
1827                                 'label' => t('Photos'),
1828                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
1829                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
1830                                 'title' => t('Photo Albums'),
1831                                 'id' => 'photo-tab',
1832                         ),
1833                 );
1834
1835                 if ($is_owner){
1836                         $tabs[] = array(
1837                                 'label' => t('Events'),
1838                                 'url'   => $a->get_baseurl() . '/events',
1839                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
1840                                 'title' => t('Events and Calendar'),
1841                                 'id' => 'events-tab',
1842                         );
1843                         $tabs[] = array(
1844                                 'label' => t('Personal Notes'),
1845                                 'url'   => $a->get_baseurl() . '/notes',
1846                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
1847                                 'title' => t('Only You Can See This'),
1848                                 'id' => 'notes-tab',
1849                         );
1850                 }
1851
1852
1853                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
1854                 call_hooks('profile_tabs', $arr);
1855
1856                 $tpl = get_markup_template('common_tabs.tpl');
1857
1858                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
1859         }
1860 }
1861
1862 function get_my_url() {
1863         if(x($_SESSION,'my_url'))
1864                 return $_SESSION['my_url'];
1865         return false;
1866 }
1867
1868 function zrl_init(&$a) {
1869         $tmp_str = get_my_url();
1870         if(validate_url($tmp_str)) {
1871                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
1872                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
1873                 call_hooks('zrl_init',$arr);
1874         }
1875 }
1876
1877 function zrl($s,$force = false) {
1878         if(! strlen($s))
1879                 return $s;
1880         if((! strpos($s,'/profile/')) && (! $force))
1881                 return $s;
1882         if($force && substr($s,-1,1) !== '/')
1883                 $s = $s . '/';
1884         $achar = strpos($s,'?') ? '&' : '?';
1885         $mine = get_my_url();
1886         if($mine and ! link_compare($mine,$s))
1887                 return $s . $achar . 'zrl=' . urlencode($mine);
1888         return $s;
1889 }
1890
1891 /**
1892 * returns querystring as string from a mapped array
1893 *
1894 * @param params Array
1895 * @return string
1896 */
1897 function build_querystring($params, $name=null) {
1898     $ret = "";
1899     foreach($params as $key=>$val) {
1900         if(is_array($val)) {
1901             if($name==null) {
1902                 $ret .= build_querystring($val, $key);
1903             } else {
1904                 $ret .= build_querystring($val, $name."[$key]");
1905             }
1906         } else {
1907             $val = urlencode($val);
1908             if($name!=null) {
1909                 $ret.=$name."[$key]"."=$val&";
1910             } else {
1911                 $ret.= "$key=$val&";
1912             }
1913         }
1914     }
1915     return $ret;
1916 }
1917
1918 /**
1919 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
1920 *
1921 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
1922 */
1923 function curPageURL() {
1924         $pageURL = 'http';
1925         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
1926         $pageURL .= "://";
1927         if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
1928                 $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
1929         } else {
1930                 $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
1931         }
1932         return $pageURL;
1933 }
1934
1935 function random_digits($digits) {
1936         $rn = '';
1937         for($i = 0; $i < $digits; $i++) {
1938                 $rn .= rand(0,9);
1939         }
1940         return $rn;
1941 }
1942
1943 function get_cachefile($file, $writemode = true) {
1944         $cache = get_config("system","itemcache");
1945
1946         if ($cache == "")
1947                 return("");
1948
1949         if (!is_dir($cache))
1950                 return("");
1951
1952         $subfolder = $cache."/".substr($file, 0, 2);
1953
1954         $cachepath = $subfolder."/".$file;
1955
1956         if ($writemode) {
1957                 if (!is_dir($subfolder)) {
1958                         mkdir($subfolder);
1959                         chmod($subfolder, 0777);
1960                 }
1961         }
1962
1963         return($cachepath);
1964 }
1965
1966 function clear_cache($basepath = "", $path = "") {
1967         if ($path == "") {
1968                 $basepath = get_config('system','itemcache');
1969                 $path = $basepath;
1970         }
1971
1972         if (($path == "") OR (!is_dir($path)))
1973                 return;
1974
1975         if (substr(realpath($path), 0, strlen($basepath)) != $basepath)
1976                 return;
1977
1978         $cachetime = (int)get_config('system','itemcache_duration');
1979         if ($cachetime == 0)
1980                 $cachetime = 86400;
1981
1982         if ($dh = opendir($path)) {
1983                 while (($file = readdir($dh)) !== false) {
1984                         $fullpath = $path."/".$file;
1985                         if ((filetype($fullpath) == "dir") and ($file != ".") and ($file != ".."))
1986                                 clear_cache($basepath, $fullpath);
1987                         if ((filetype($fullpath) == "file") and (filectime($fullpath) < (time() - $cachetime)))
1988                                 unlink($fullpath);
1989                 }
1990                 closedir($dh);
1991         }
1992 }
1993
1994 function set_template_engine(&$a, $engine = 'internal') {
1995 // This function is no longer necessary, but keep it as a wrapper to the class method
1996 // to avoid breaking themes again unnecessarily
1997
1998         $a->set_template_engine($engine);
1999 }
2000