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',      '3.1.1565' );
  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                 public $smarty3_ldelim = '{{';
 388                 public $smarty3_rdelim = '}}';
 389
 390                 private $scheme;
 391                 private $hostname;
 392                 private $baseurl;
 393                 private $db;
 394
 395                 private $curl_code;
 396                 private $curl_headers;
 397
 398                 private $cached_profile_image;
 399                 private $cached_profile_picdate;
 400
 401                 function __construct() {
 402
 403                         global $default_timezone, $argv, $argc;
 404
 405                         $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
 406
 407                         date_default_timezone_set($this->timezone);
 408
 409                         $this->config = array();
 410                         $this->page = array();
 411                         $this->pager= array();
 412
 413                         $this->query_string = '';
 414
 415                         startup();
 416
 417                         $this->scheme = 'http';
 418                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
 419                                 $this->scheme = 'https';
 420                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
 421                         $this->scheme = 'https';
 422
 423                         if(x($_SERVER,'SERVER_NAME')) {
 424                                 $this->hostname = $_SERVER['SERVER_NAME'];
 425
 426                                 // See bug 437 - this didn't work so disabling it
 427                                 //if(stristr($this->hostname,'xn--')) {
 428                                         // PHP or webserver may have converted idn to punycode, so
 429                                         // convert punycode back to utf-8
 430                                 //      require_once('library/simplepie/idn/idna_convert.class.php');
 431                                 //      $x = new idna_convert();
 432                                 //      $this->hostname = $x->decode($_SERVER['SERVER_NAME']);
 433                                 //}
 434
 435                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
 436                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
 437                                 /**
 438                                  * Figure out if we are running at the top of a domain
 439                                  * or in a sub-directory and adjust accordingly
 440                                  */
 441
 442                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
 443                                 if(isset($path) && strlen($path) && ($path != $this->path))
 444                                         $this->path = $path;
 445                         }
 446                         if (is_array($argv) && $argc>1 && substr(end($argv), 0, 4)=="http" ) {
 447                                 $this->set_baseurl(array_pop($argv) );
 448                                 $argc --;
 449                         }
 450
 451                         set_include_path(
 452                                         "include/$this->hostname" . PATH_SEPARATOR
 453                                         . 'include' . PATH_SEPARATOR
 454                                         . 'library' . PATH_SEPARATOR
 455                                         . 'library/phpsec' . PATH_SEPARATOR
 456                                         . 'library/langdet' . PATH_SEPARATOR
 457                                         . '.' );
 458
 459
 460                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
 461                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
 462                                 // removing trailing / - maybe a nginx problem
 463                                 if (substr($this->query_string, 0, 1) == "/")
 464                                         $this->query_string = substr($this->query_string, 1);
 465                         }
 466                         if(x($_GET,'q'))
 467                                 $this->cmd = trim($_GET['q'],'/\\');
 468
 469                         // unix style "homedir"
 470
 471                         if(substr($this->cmd,0,1) === '~')
 472                                 $this->cmd = 'profile/' . substr($this->cmd,1);
 473
 474                         // Diaspora style profile url
 475
 476                         if(substr($this->cmd,0,2) === 'u/')
 477                                 $this->cmd = 'profile/' . substr($this->cmd,2);
 478
 479                         /**
 480                          *
 481                          * Break the URL path into C style argc/argv style arguments for our
 482                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
 483                          * will be 3 (integer) and $this->argv will contain:
 484                          *   [0] => 'module'
 485                          *   [1] => 'arg1'
 486                          *   [2] => 'arg2'
 487                          *
 488                          *
 489                          * There will always be one argument. If provided a naked domain
 490                          * URL, $this->argv[0] is set to "home".
 491                          *
 492                          */
 493
 494                         $this->argv = explode('/',$this->cmd);
 495                         $this->argc = count($this->argv);
 496                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
 497                                 $this->module = str_replace(".", "_", $this->argv[0]);
 498                                 $this->module = str_replace("-", "_", $this->module);
 499                         }
 500                         else {
 501                                 $this->argc = 1;
 502                                 $this->argv = array('home');
 503                                 $this->module = 'home';
 504                         }
 505
 506                         /**
 507                          * See if there is any page number information, and initialise
 508                          * pagination
 509                          */
 510
 511                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
 512                         $this->pager['itemspage'] = 50;
 513                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 514                         if($this->pager['start'] < 0)
 515                                 $this->pager['start'] = 0;
 516                         $this->pager['total'] = 0;
 517
 518                         /**
 519                          * Detect mobile devices
 520                          */
 521
 522                         $mobile_detect = new Mobile_Detect();
 523                         $this->is_mobile = $mobile_detect->isMobile();
 524                         $this->is_tablet = $mobile_detect->isTablet();
 525                 }
 526
 527                 function get_basepath() {
 528
 529                         $basepath = get_config("system", "basepath");
 530
 531                         if ($basepath == "")
 532                                 $basepath = $_SERVER["DOCUMENT_ROOT"];
 533
 534                         if ($basepath == "")
 535                                 $basepath = $_SERVER["PWD"];
 536
 537                         return($basepath);
 538                 }
 539
 540                 function get_baseurl($ssl = false) {
 541
 542                         $scheme = $this->scheme;
 543
 544                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
 545                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
 546                                         $scheme = 'https';
 547
 548                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
 549                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
 550
 551                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
 552                                         if($ssl)
 553                                                 $scheme = 'https';
 554                                         else
 555                                                 $scheme = 'http';
 556                                 }
 557                         }
 558
 559                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
 560                         return $this->baseurl;
 561                 }
 562
 563                 function set_baseurl($url) {
 564                         $parsed = @parse_url($url);
 565
 566                         $this->baseurl = $url;
 567
 568                         if($parsed) {
 569                                 $this->scheme = $parsed['scheme'];
 570
 571                                 $this->hostname = $parsed['host'];
 572                                 if(x($parsed,'port'))
 573                                         $this->hostname .= ':' . $parsed['port'];
 574                                 if(x($parsed,'path'))
 575                                         $this->path = trim($parsed['path'],'\\/');
 576                         }
 577
 578                 }
 579
 580                 function get_hostname() {
 581                         return $this->hostname;
 582                 }
 583
 584                 function set_hostname($h) {
 585                         $this->hostname = $h;
 586                 }
 587
 588                 function set_path($p) {
 589                         $this->path = trim(trim($p),'/');
 590                 }
 591
 592                 function get_path() {
 593                         return $this->path;
 594                 }
 595
 596                 function set_pager_total($n) {
 597                         $this->pager['total'] = intval($n);
 598                 }
 599
 600                 function set_pager_itemspage($n) {
 601                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
 602                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 603
 604                 }
 605
 606                 function init_pagehead() {
 607                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
 608                         if($interval < 10000)
 609                                 $interval = 40000;
 610
 611                         $this->page['title'] = $this->config['sitename'];
 612
 613                         /* put the head template at the beginning of page['htmlhead']
 614                          * since the code added by the modules frequently depends on it
 615                          * being first
 616                          */
 617                         if(!isset($this->page['htmlhead']))
 618                                 $this->page['htmlhead'] = '';
 619                         $tpl = get_markup_template('head.tpl');
 620
 621                         // If we're using Smarty, then doing replace_macros() will replace
 622                         // any unrecognized variables with a blank string. Since we delay
 623                         // replacing $stylesheet until later, we need to replace it now
 624                         // with another variable name
 625                         if($this->theme['template_engine'] === 'smarty3')
 626                                 $stylesheet = $this->smarty3_ldelim . '$stylesheet' . $this->smarty3_rdelim;
 627                         else
 628                                 $stylesheet = '$stylesheet';
 629
 630                         $this->page['htmlhead'] = replace_macros($tpl,array(
 631                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
 632                                 '$local_user' => local_user(),
 633                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
 634                                 '$delitem' => t('Delete this item?'),
 635                                 '$comment' => t('Comment'),
 636                                 '$showmore' => t('show more'),
 637                                 '$showfewer' => t('show fewer'),
 638                                 '$update_interval' => $interval,
 639                                 '$stylesheet' => $stylesheet
 640                         )) . $this->page['htmlhead'];
 641                 }
 642
 643                 function init_page_end() {
 644                         if(!isset($this->page['end']))
 645                                 $this->page['end'] = '';
 646                         $tpl = get_markup_template('end.tpl');
 647                         $this->page['end'] = replace_macros($tpl,array(
 648                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
 649                         )) . $this->page['end'];
 650                 }
 651
 652                 function set_curl_code($code) {
 653                         $this->curl_code = $code;
 654                 }
 655
 656                 function get_curl_code() {
 657                         return $this->curl_code;
 658                 }
 659
 660                 function set_curl_headers($headers) {
 661                         $this->curl_headers = $headers;
 662                 }
 663
 664                 function get_curl_headers() {
 665                         return $this->curl_headers;
 666                 }
 667
 668                 function get_cached_avatar_image($avatar_image){
 669                         if($this->cached_profile_image[$avatar_image])
 670                                 return $this->cached_profile_image[$avatar_image];
 671
 672                         $path_parts = explode("/",$avatar_image);
 673                         $common_filename = $path_parts[count($path_parts)-1];
 674
 675                         if($this->cached_profile_picdate[$common_filename]){
 676                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 677                         } else {
 678                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like \"%%/%s\"",
 679                                         $common_filename);
 680                                 if(! count($r)){
 681                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
 682                                 } else {
 683                                         $this->cached_profile_picdate[$common_filename] = "?rev=" . urlencode($r[0]['picdate']);
 684                                         $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 685                                 }
 686                         }
 687                         return $this->cached_profile_image[$avatar_image];
 688                 }
 689
 690
 691         }
 692 }
 693
 694 // retrieve the App structure
 695 // useful in functions which require it but don't get it passed to them
 696
 697 if(! function_exists('get_app')) {
 698         function get_app() {
 699                 global $a;
 700                 return $a;
 701         }
 702 };
 703
 704
 705 // Multi-purpose function to check variable state.
 706 // Usage: x($var) or $x($array,'key')
 707 // returns false if variable/key is not set
 708 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
 709 // e.g. x('') or x(0) returns 0;
 710
 711 if(! function_exists('x')) {
 712         function x($s,$k = NULL) {
 713                 if($k != NULL) {
 714                         if((is_array($s)) && (array_key_exists($k,$s))) {
 715                                 if($s[$k])
 716                                         return (int) 1;
 717                                 return (int) 0;
 718                 }
 719                         return false;
 720                 }
 721                 else {
 722                         if(isset($s)) {
 723                                 if($s) {
 724                                         return (int) 1;
 725                                 }
 726                                 return (int) 0;
 727                         }
 728                         return false;
 729                 }
 730         }
 731 }
 732
 733 // called from db initialisation if db is dead.
 734
 735 if(! function_exists('system_unavailable')) {
 736         function system_unavailable() {
 737                 include('system_unavailable.php');
 738                 system_down();
 739                 killme();
 740         }
 741 }
 742
 743
 744
 745 function clean_urls() {
 746         global $a;
 747         //      if($a->config['system']['clean_urls'])
 748         return true;
 749         //      return false;
 750 }
 751
 752 function z_path() {
 753         global $a;
 754         $base = $a->get_baseurl();
 755         if(! clean_urls())
 756                 $base .= '/?q=';
 757         return $base;
 758 }
 759
 760 function z_root() {
 761         global $a;
 762         return $a->get_baseurl();
 763 }
 764
 765 function absurl($path) {
 766         if(strpos($path,'/') === 0)
 767                 return z_path() . $path;
 768         return $path;
 769 }
 770
 771 function is_ajax() {
 772         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
 773 }
 774
 775
 776 // Primarily involved with database upgrade, but also sets the
 777 // base url for use in cmdline programs which don't have
 778 // $_SERVER variables, and synchronising the state of installed plugins.
 779
 780
 781 if(! function_exists('check_config')) {
 782         function check_config(&$a) {
 783
 784                 $build = get_config('system','build');
 785                 if(! x($build))
 786                         $build = set_config('system','build',DB_UPDATE_VERSION);
 787
 788                 $url = get_config('system','url');
 789
 790                 // if the url isn't set or the stored url is radically different
 791                 // than the currently visited url, store the current value accordingly.
 792                 // "Radically different" ignores common variations such as http vs https
 793                 // and www.example.com vs example.com.
 794                 // We will only change the url to an ip address if there is no existing setting
 795
 796                 if(! x($url))
 797                         $url = set_config('system','url',$a->get_baseurl());
 798                 if((! link_compare($url,$a->get_baseurl())) && (! preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/",$a->get_hostname)))
 799                         $url = set_config('system','url',$a->get_baseurl());
 800
 801
 802                 if($build != DB_UPDATE_VERSION) {
 803                         $stored = intval($build);
 804                         $current = intval(DB_UPDATE_VERSION);
 805                         if(($stored < $current) && file_exists('update.php')) {
 806
 807                                 load_config('database');
 808
 809                                 // We're reporting a different version than what is currently installed.
 810                                 // Run any existing update scripts to bring the database up to current.
 811
 812                                 require_once('update.php');
 813
 814                                 // make sure that boot.php and update.php are the same release, we might be
 815                                 // updating right this very second and the correct version of the update.php
 816                                 // file may not be here yet. This can happen on a very busy site.
 817
 818                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
 819
 820                                         for($x = $stored; $x < $current; $x ++) {
 821                                                 if(function_exists('update_' . $x)) {
 822
 823                                                         // There could be a lot of processes running or about to run.
 824                                                         // We want exactly one process to run the update command.
 825                                                         // So store the fact that we're taking responsibility
 826                                                         // after first checking to see if somebody else already has.
 827
 828                                                         // If the update fails or times-out completely you may need to
 829                                                         // delete the config entry to try again.
 830
 831                                                         $t = get_config('database','update_' . $x);
 832                                                         if($t !== false)
 833                                                                 break;
 834                                                         set_config('database','update_' . $x, time());
 835
 836                                                         // call the specific update
 837
 838                                                         $func = 'update_' . $x;
 839                                                         $retval = $func();
 840                                                         if($retval) {
 841                                                                 //send the administrator an e-mail
 842                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
 843                                                                 $email_msg = replace_macros($email_tpl, array(
 844                                                                         '$sitename' => $a->config['sitename'],
 845                                                                         '$siteurl' =>  $a->get_baseurl(),
 846                                                                         '$update' => $x,
 847                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
 848                                                                 ));
 849                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
 850
 851                                                                 mail($a->config['admin_email'], $subject, $email_msg,
 852                                                                         'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
 853                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
 854                                                                         . 'Content-transfer-encoding: 8bit' );
 855                                                                 //try the logger
 856                                                                 logger('CRITICAL: Update Failed: '. $x);
 857                                                                 break;
 858                                                         }
 859                                                         else {
 860                                                                 set_config('database','update_' . $x, 'success');
 861                                                                 set_config('system','build', $x + 1);
 862                                                         }
 863                                                 }
 864                                         }
 865                                 }
 866                         }
 867                 }
 868
 869                 /**
 870                  *
 871                  * Synchronise plugins:
 872                  *
 873                  * $a->config['system']['addon'] contains a comma-separated list of names
 874                  * of plugins/addons which are used on this system.
 875                  * Go through the database list of already installed addons, and if we have
 876                  * an entry, but it isn't in the config list, call the uninstall procedure
 877                  * and mark it uninstalled in the database (for now we'll remove it).
 878                  * Then go through the config list and if we have a plugin that isn't installed,
 879                  * call the install procedure and add it to the database.
 880                  *
 881                  */
 882
 883                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
 884                 if(count($r))
 885                         $installed = $r;
 886                 else
 887                         $installed = array();
 888
 889                 $plugins = get_config('system','addon');
 890                 $plugins_arr = array();
 891
 892                 if($plugins)
 893                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
 894
 895                 $a->plugins = $plugins_arr;
 896
 897                 $installed_arr = array();
 898
 899                 if(count($installed)) {
 900                         foreach($installed as $i) {
 901                                 if(! in_array($i['name'],$plugins_arr)) {
 902                                         uninstall_plugin($i['name']);
 903                                 }
 904                                 else {
 905                                         $installed_arr[] = $i['name'];
 906                                 }
 907                         }
 908                 }
 909
 910                 if(count($plugins_arr)) {
 911                         foreach($plugins_arr as $p) {
 912                                 if(! in_array($p,$installed_arr)) {
 913                                         install_plugin($p);
 914                                 }
 915                         }
 916                 }
 917
 918
 919                 load_hooks();
 920
 921                 return;
 922         }
 923 }
 924
 925
 926 function get_guid($size=16) {
 927         $exists = true; // assume by default that we don't have a unique guid
 928         do {
 929                 $s = random_string($size);
 930                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
 931                 if(! count($r))
 932                         $exists = false;
 933         } while($exists);
 934         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
 935         return $s;
 936 }
 937
 938
 939 // wrapper for adding a login box. If $register == true provide a registration
 940 // link. This will most always depend on the value of $a->config['register_policy'].
 941 // returns the complete html for inserting into the page
 942
 943 if(! function_exists('login')) {
 944         function login($register = false, $hiddens=false) {
 945                 $a = get_app();
 946                 $o = "";
 947                 $reg = false;
 948                 if ($register) {
 949                         $reg = array(
 950                                 'title' => t('Create a New Account'),
 951                                 'desc' => t('Register')
 952                         );
 953                 }
 954
 955                 $noid = get_config('system','no_openid');
 956
 957                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
 958
 959                 if(local_user()) {
 960                         $tpl = get_markup_template("logout.tpl");
 961                 }
 962                 else {
 963                         $a->page['htmlhead'] .= replace_macros(get_markup_template("login_head.tpl"),array(
 964                                 '$baseurl'              => $a->get_baseurl(true)
 965                         ));
 966
 967                         $tpl = get_markup_template("login.tpl");
 968                         $_SESSION['return_url'] = $a->query_string;
 969                         $a->module = 'login';
 970                 }
 971
 972
 973                 $includes = array(
 974                         '$field_input' => 'field_input.tpl',
 975                         '$field_password' => 'field_password.tpl',
 976                         '$field_openid' => 'field_openid.tpl',
 977                         '$field_checkbox' => 'field_checkbox.tpl',
 978                 );
 979                 $includes = set_template_includes($a->theme['template_engine'], $includes);
 980
 981                 $o .= replace_macros($tpl,$includes + array(
 982
 983                         '$dest_url'     => $dest_url,
 984                         '$logout'       => t('Logout'),
 985                         '$login'        => t('Login'),
 986
 987                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
 988                         '$lpassword'    => array('password', t('Password: '), '', ''),
 989                         '$lremember'    => array('remember', t('Remember me'), 0, ''),
 990
 991                         '$openid'               => !$noid,
 992                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
 993
 994                         '$hiddens'      => $hiddens,
 995
 996                         '$register'     => $reg,
 997
 998                         '$lostpass'     => t('Forgot your password?'),
 999                         '$lostlink'     => t('Password Reset'),
1000                 ));
1001
1002                 call_hooks('login_hook',$o);
1003
1004                 return $o;
1005         }
1006 }
1007
1008 // Used to end the current process, after saving session state.
1009
1010 if(! function_exists('killme')) {
1011         function killme() {
1012                 session_write_close();
1013                 exit;
1014         }
1015 }
1016
1017 // redirect to another URL and terminate this process.
1018
1019 if(! function_exists('goaway')) {
1020         function goaway($s) {
1021                 header("Location: $s");
1022                 killme();
1023         }
1024 }
1025
1026
1027 // Returns the uid of locally logged in user or false.
1028
1029 if(! function_exists('local_user')) {
1030         function local_user() {
1031                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1032                         return intval($_SESSION['uid']);
1033                 return false;
1034         }
1035 }
1036
1037 // Returns contact id of authenticated site visitor or false
1038
1039 if(! function_exists('remote_user')) {
1040         function remote_user() {
1041                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1042                         return intval($_SESSION['visitor_id']);
1043                 return false;
1044         }
1045 }
1046
1047 // contents of $s are displayed prominently on the page the next time
1048 // a page is loaded. Usually used for errors or alerts.
1049
1050 if(! function_exists('notice')) {
1051         /**
1052          * Show an error message to user.
1053          *
1054          * This function save text in session, to be shown to the user at next page load
1055          *
1056          * @param string $s - Text of notice
1057          */
1058         function notice($s) {
1059                 $a = get_app();
1060                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
1061                 if($a->interactive)
1062                         $_SESSION['sysmsg'][] = $s;
1063         }
1064 }
1065 if(! function_exists('info')) {
1066         /**
1067          * Show an info message to user.
1068          *
1069          * This function save text in session, to be shown to the user at next page load
1070          *
1071          * @param string $s - Text of notice
1072          */
1073         function info($s) {
1074                 $a = get_app();
1075                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
1076                 if($a->interactive)
1077                         $_SESSION['sysmsg_info'][] = $s;
1078         }
1079 }
1080
1081
1082 // wrapper around config to limit the text length of an incoming message
1083
1084 if(! function_exists('get_max_import_size')) {
1085         function get_max_import_size() {
1086                 global $a;
1087                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1088         }
1089 }
1090
1091
1092
1093 /**
1094  *
1095  * Function : profile_load
1096  * @parameter App    $a
1097  * @parameter string $nickname
1098  * @parameter int    $profile
1099  *
1100  * Summary: Loads a profile into the page sidebar.
1101  * The function requires a writeable copy of the main App structure, and the nickname
1102  * of a registered local account.
1103  *
1104  * If the viewer is an authenticated remote viewer, the profile displayed is the
1105  * one that has been configured for his/her viewing in the Contact manager.
1106  * Passing a non-zero profile ID can also allow a preview of a selected profile
1107  * by the owner.
1108  *
1109  * Profile information is placed in the App structure for later retrieval.
1110  * Honours the owner's chosen theme for display.
1111  *
1112  */
1113
1114 if(! function_exists('profile_load')) {
1115         function profile_load(&$a, $nickname, $profile = 0) {
1116
1117                 $user = q("select uid from user where nickname = '%s' limit 1",
1118                         dbesc($nickname)
1119                 );
1120
1121                 if(! ($user && count($user))) {
1122                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1123                         notice( t('Requested account is not available.') . EOL );
1124                         $a->error = 404;
1125                         return;
1126                 }
1127
1128                 if(remote_user() && count($_SESSION['remote'])) {
1129                         foreach($_SESSION['remote'] as $visitor) {
1130                                 if($visitor['uid'] == $user[0]['uid']) {
1131                                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1132                                                 intval($visitor['cid'])
1133                                         );
1134                                         if(count($r))
1135                                                 $profile = $r[0]['profile-id'];
1136                                         break;
1137                                 }
1138                         }
1139                 }
1140
1141                 $r = null;
1142
1143                 if($profile) {
1144                         $profile_int = intval($profile);
1145                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1146                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1147                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1148                                         dbesc($nickname),
1149                                         intval($profile_int)
1150                         );
1151                 }
1152                 if((! $r) && (!  count($r))) {
1153                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1154                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1155                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1156                                         dbesc($nickname)
1157                         );
1158                 }
1159
1160                 if(($r === false) || (! count($r))) {
1161                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1162                         notice( t('Requested profile is not available.') . EOL );
1163                         $a->error = 404;
1164                         return;
1165                 }
1166
1167                 // fetch user tags if this isn't the default profile
1168
1169                 if(! $r[0]['is-default']) {
1170                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1171                                         intval($profile_uid)
1172                         );
1173                         if($x && count($x))
1174                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1175                 }
1176
1177                 $a->profile = $r[0];
1178
1179                 $a->profile['mobile-theme'] = get_pconfig($profile_uid, 'system', 'mobile_theme');
1180
1181
1182                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1183                 $_SESSION['theme'] = $a->profile['theme'];
1184                 $_SESSION['mobile-theme'] = $a->profile['mobile-theme'];
1185
1186                 /**
1187                  * load/reload current theme info
1188                  */
1189
1190                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1191                 if (file_exists($theme_info_file)){
1192                         require_once($theme_info_file);
1193                 }
1194
1195                 if(! (x($a->page,'aside')))
1196                         $a->page['aside'] = '';
1197
1198                 if(local_user() && local_user() == $a->profile['uid']) {
1199                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1200                                 '$editprofile' => t('Edit profile'),
1201                                 '$profid' => $a->profile['id']
1202                         ));
1203                 }
1204
1205                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1206
1207                 $a->page['aside'] .= profile_sidebar($a->profile, $block);
1208
1209                 /*if(! $block)
1210                  $a->page['aside'] .= contact_block();*/
1211
1212                 return;
1213         }
1214 }
1215
1216
1217 /**
1218  *
1219  * Function: profile_sidebar
1220  *
1221  * Formats a profile for display in the sidebar.
1222  * It is very difficult to templatise the HTML completely
1223  * because of all the conditional logic.
1224  *
1225  * @parameter: array $profile
1226  *
1227  * Returns HTML string stuitable for sidebar inclusion
1228  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1229  *
1230  */
1231
1232
1233 if(! function_exists('profile_sidebar')) {
1234         function profile_sidebar($profile, $block = 0) {
1235
1236                 $a = get_app();
1237
1238                 $o = '';
1239                 $location = false;
1240                 $address = false;
1241                 $pdesc = true;
1242
1243                 if((! is_array($profile)) && (! count($profile)))
1244                         return $o;
1245
1246                 $profile['picdate'] = urlencode($profile['picdate']);
1247
1248                 call_hooks('profile_sidebar_enter', $profile);
1249
1250
1251                 // don't show connect link to yourself
1252                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1253
1254                 // don't show connect link to authenticated visitors either
1255
1256                 if(remote_user() && count($_SESSION['remote'])) {
1257                         foreach($_SESSION['remote'] as $visitor) {
1258                                 if($visitor['uid'] == $profile['uid']) {
1259                                         $connect = false;
1260                                         break;
1261                                 }
1262                         }
1263                 }
1264
1265                 if(get_my_url() && $profile['unkmail'])
1266                         $wallmessage = t('Message');
1267                 else
1268                         $wallmessage = false;
1269
1270
1271
1272                 // show edit profile to yourself
1273                 if ($profile['uid'] == local_user() && feature_enabled(local_user(),'multi_profiles')) {
1274                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1275
1276                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1277                                         local_user());
1278
1279                         $profile['menu'] = array(
1280                                 'chg_photo' => t('Change profile photo'),
1281                                 'cr_new' => t('Create New Profile'),
1282                                 'entries' => array(),
1283                         );
1284
1285                         if(count($r)) {
1286
1287                                 foreach($r as $rr) {
1288                                         $profile['menu']['entries'][] = array(
1289                                                 'photo' => $rr['thumb'],
1290                                                 'id' => $rr['id'],
1291                                                 'alt' => t('Profile Image'),
1292                                                 'profile_name' => $rr['profile-name'],
1293                                                 'isdefault' => $rr['is-default'],
1294                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1295                                                 'edit_visibility' => t('Edit visibility'),
1296
1297                                         );
1298                                 }
1299
1300
1301                         }
1302
1303
1304                 }
1305
1306
1307
1308
1309                 if((x($profile,'address') == 1)
1310                                 || (x($profile,'locality') == 1)
1311                                 || (x($profile,'region') == 1)
1312                                 || (x($profile,'postal-code') == 1)
1313                                 || (x($profile,'country-name') == 1))
1314                         $location = t('Location:');
1315
1316                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1317
1318
1319                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1320
1321                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1322
1323                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1324                         $location = $pdesc = $gender = $marital = $homepage = False;
1325                 }
1326
1327                 $firstname = ((strpos($profile['name'],' '))
1328                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1329                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1330
1331                 $diaspora = array(
1332                         'podloc' => $a->get_baseurl(),
1333                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1334                         'nickname' => $profile['nickname'],
1335                         'fullname' => $profile['name'],
1336                         'firstname' => $firstname,
1337                         'lastname' => $lastname,
1338                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1339                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1340                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1341                 );
1342
1343                 if (!$block){
1344                         $contact_block = contact_block();
1345                 }
1346
1347
1348                 $tpl = get_markup_template('profile_vcard.tpl');
1349
1350
1351                 $includes = array(
1352                         '$diaspora_vcard' => 'diaspora_vcard.tpl'
1353                 );
1354                 $includes = set_template_includes($a->theme['template_engine'], $includes);
1355
1356                 if($a->theme['template_engine'] === 'internal')
1357                         $location = template_escape($location);
1358
1359                 $o .= replace_macros($tpl, $includes + array(
1360                         '$profile' => $profile,
1361                         '$connect'  => $connect,
1362                         '$wallmessage' => $wallmessage,
1363                         '$location' => $location,
1364                         '$gender'   => $gender,
1365                         '$pdesc'        => $pdesc,
1366                         '$marital'  => $marital,
1367                         '$homepage' => $homepage,
1368                         '$diaspora_info' => $diaspora,
1369                         '$contact_block' => $contact_block,
1370                 ));
1371
1372
1373                 $arr = array('profile' => &$profile, 'entry' => &$o);
1374
1375                 call_hooks('profile_sidebar', $arr);
1376
1377                 return $o;
1378         }
1379 }
1380
1381
1382 if(! function_exists('get_birthdays')) {
1383         function get_birthdays() {
1384
1385                 $a = get_app();
1386                 $o = '';
1387
1388                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1389                         return $o;
1390
1391 //              $mobile_detect = new Mobile_Detect();
1392 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1393
1394 //              if($is_mobile)
1395 //                      return $o;
1396
1397                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1398                 $bd_short = t('F d');
1399
1400                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1401                                 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
1402                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1403                                 ORDER BY `start` ASC ",
1404                                 intval(local_user()),
1405                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1406                                 dbesc(datetime_convert('UTC','UTC','now'))
1407                 );
1408
1409                 if($r && count($r)) {
1410                         $total = 0;
1411                         $now = strtotime('now');
1412                         $cids = array();
1413
1414                         $istoday = false;
1415                         foreach($r as $rr) {
1416                                 if(strlen($rr['name']))
1417                                         $total ++;
1418                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1419                                         $istoday = true;
1420                         }
1421                         $classtoday = $istoday ? ' birthday-today ' : '';
1422                         if($total) {
1423                                 foreach($r as &$rr) {
1424                                         if(! strlen($rr['name']))
1425                                                 continue;
1426
1427                                         // avoid duplicates
1428
1429                                         if(in_array($rr['cid'],$cids))
1430                                                 continue;
1431                                         $cids[] = $rr['cid'];
1432
1433                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1434                                         $sparkle = '';
1435                                         $url = $rr['url'];
1436                                         if($rr['network'] === NETWORK_DFRN) {
1437                                                 $sparkle = " sparkle";
1438                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1439                                         }
1440
1441                                         $rr['link'] = $url;
1442                                         $rr['title'] = $rr['name'];
1443                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1444                                         $rr['startime'] = Null;
1445                                         $rr['today'] = $today;
1446
1447                                 }
1448                         }
1449                 }
1450                 $tpl = get_markup_template("birthdays_reminder.tpl");
1451                 return replace_macros($tpl, array(
1452                         '$baseurl' => $a->get_baseurl(),
1453                         '$classtoday' => $classtoday,
1454                         '$count' => $total,
1455                         '$event_reminders' => t('Birthday Reminders'),
1456                         '$event_title' => t('Birthdays this week:'),
1457                         '$events' => $r,
1458                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1459                         '$rbr' => '}'
1460
1461                 ));
1462         }
1463 }
1464
1465
1466 if(! function_exists('get_events')) {
1467         function get_events() {
1468
1469                 require_once('include/bbcode.php');
1470
1471                 $a = get_app();
1472
1473                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1474                         return $o;
1475
1476
1477 //              $mobile_detect = new Mobile_Detect();
1478 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1479
1480 //              if($is_mobile)
1481 //                      return $o;
1482
1483                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1484                 $bd_short = t('F d');
1485
1486                 $r = q("SELECT `event`.* FROM `event`
1487                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1488                                 ORDER BY `start` ASC ",
1489                                 intval(local_user()),
1490                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1491                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1492                 );
1493
1494                 if($r && count($r)) {
1495                         $now = strtotime('now');
1496                         $istoday = false;
1497                         foreach($r as $rr) {
1498                                 if(strlen($rr['name']))
1499                                         $total ++;
1500
1501                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1502                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1503                                         $istoday = true;
1504                         }
1505                         $classtoday = (($istoday) ? 'event-today' : '');
1506
1507
1508                         foreach($r as &$rr) {
1509                                 if($rr['adjust'])
1510                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1511                                 else
1512                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1513                                 $md .= "/#link-".$rr['id'];
1514
1515                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1516                                 if(! $title)
1517                                         $title = t('[No description]');
1518
1519                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1520                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1521
1522                                 $rr['link'] = $md;
1523                                 $rr['title'] = $title;
1524                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1525                                 $rr['startime'] = $strt;
1526                                 $rr['today'] = $today;
1527                         }
1528                 }
1529
1530                 $tpl = get_markup_template("events_reminder.tpl");
1531                 return replace_macros($tpl, array(
1532                         '$baseurl' => $a->get_baseurl(),
1533                         '$classtoday' => $classtoday,
1534                         '$count' => count($r),
1535                         '$event_reminders' => t('Event Reminders'),
1536                         '$event_title' => t('Events this week:'),
1537                         '$events' => $r,
1538                 ));
1539         }
1540 }
1541
1542
1543 /**
1544  *
1545  * Wrap calls to proc_close(proc_open()) and call hook
1546  * so plugins can take part in process :)
1547  *
1548  * args:
1549  * $cmd program to run
1550  *  next args are passed as $cmd command line
1551  *
1552  * e.g.: proc_run("ls","-la","/tmp");
1553  *
1554  * $cmd and string args are surrounded with ""
1555  */
1556
1557 if(! function_exists('proc_run')) {
1558         function proc_run($cmd){
1559
1560                 $a = get_app();
1561
1562                 $args = func_get_args();
1563
1564                 $newargs = array();
1565                 if(! count($args))
1566                         return;
1567
1568                 // expand any arrays
1569
1570                 foreach($args as $arg) {
1571                         if(is_array($arg)) {
1572                                 foreach($arg as $n) {
1573                                         $newargs[] = $n;
1574                                 }
1575                         }
1576                         else
1577                                 $newargs[] = $arg;
1578                 }
1579
1580                 $args = $newargs;
1581
1582                 $arr = array('args' => $args, 'run_cmd' => true);
1583
1584                 call_hooks("proc_run", $arr);
1585                 if(! $arr['run_cmd'])
1586                         return;
1587
1588                 if(count($args) && $args[0] === 'php')
1589                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1590
1591         // add baseurl to args. cli scripts can't construct it
1592         $args[] = $a->get_baseurl();
1593
1594         for($x = 0; $x < count($args); $x ++)
1595                         $args[$x] = escapeshellarg($args[$x]);
1596
1597
1598
1599                 $cmdline = implode($args," ");
1600                 if(get_config('system','proc_windows'))
1601                         proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
1602                 else
1603                         proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
1604         }
1605 }
1606
1607 if(! function_exists('current_theme')) {
1608         function current_theme(){
1609                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1610
1611                 $a = get_app();
1612
1613 //              $mobile_detect = new Mobile_Detect();
1614 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1615                 $is_mobile = $a->is_mobile || $a->is_tablet;
1616
1617                 if($is_mobile) {
1618                         if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1619                                 $system_theme = '';
1620                                 $theme_name = '';
1621                         }
1622                         else {
1623                                 $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1624                                 $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1625
1626                                 if($theme_name === '---') {
1627                                         // user has selected to have the mobile theme be the same as the normal one
1628                                         $system_theme = '';
1629                                         $theme_name = '';
1630                                 }
1631                         }
1632                 }
1633                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1634                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1635                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1636                 }
1637
1638                 if($theme_name &&
1639                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1640                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1641                         return($theme_name);
1642
1643                 foreach($app_base_themes as $t) {
1644                         if(file_exists('view/theme/' . $t . '/style.css')||
1645                                         file_exists('view/theme/' . $t . '/style.php'))
1646                                 return($t);
1647                 }
1648
1649                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1650                 if(count($fallback))
1651                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1652
1653         }
1654 }
1655
1656 /*
1657  * Return full URL to theme which is currently in effect.
1658 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1659 */
1660 if(! function_exists('current_theme_url')) {
1661         function current_theme_url() {
1662                 global $a;
1663                 $t = current_theme();
1664                 if (file_exists('view/theme/' . $t . '/style.php'))
1665                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1666                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1667         }
1668 }
1669
1670 if(! function_exists('feed_birthday')) {
1671         function feed_birthday($uid,$tz) {
1672
1673                 /**
1674                  *
1675                  * Determine the next birthday, but only if the birthday is published
1676                  * in the default profile. We _could_ also look for a private profile that the
1677                  * recipient can see, but somebody could get mad at us if they start getting
1678                  * public birthday greetings when they haven't made this info public.
1679                  *
1680                  * Assuming we are able to publish this info, we are then going to convert
1681                  * the start time from the owner's timezone to UTC.
1682                  *
1683                  * This will potentially solve the problem found with some social networks
1684                  * where birthdays are converted to the viewer's timezone and salutations from
1685                  * elsewhere in the world show up on the wrong day. We will convert it to the
1686                  * viewer's timezone also, but first we are going to convert it from the birthday
1687                  * person's timezone to GMT - so the viewer may find the birthday starting at
1688                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1689                  *
1690                  */
1691
1692
1693                 $birthday = '';
1694
1695                 if(! strlen($tz))
1696                         $tz = 'UTC';
1697
1698                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1699                                 intval($uid)
1700                 );
1701
1702                 if($p && count($p)) {
1703                         $tmp_dob = substr($p[0]['dob'],5);
1704                         if(intval($tmp_dob)) {
1705                                 $y = datetime_convert($tz,$tz,'now','Y');
1706                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1707                                 $t_dob = strtotime($bd);
1708                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1709                                 if($t_dob < $now)
1710                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1711                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
1712                         }
1713                 }
1714
1715                 return $birthday;
1716         }
1717 }
1718
1719 if(! function_exists('is_site_admin')) {
1720         function is_site_admin() {
1721                 $a = get_app();
1722                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1723                         return true;
1724                 return false;
1725         }
1726 }
1727
1728
1729 if(! function_exists('load_contact_links')) {
1730         function load_contact_links($uid) {
1731
1732                 $a = get_app();
1733
1734                 $ret = array();
1735
1736                 if(! $uid || x($a->contacts,'empty'))
1737                         return;
1738
1739                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
1740                                 intval($uid)
1741                 );
1742                 if(count($r)) {
1743                         foreach($r as $rr){
1744                                 $url = normalise_link($rr['url']);
1745                                 $ret[$url] = $rr;
1746                         }
1747                 }
1748                 else
1749                         $ret['empty'] = true;
1750                 $a->contacts = $ret;
1751                 return;
1752         }
1753 }
1754
1755 if(! function_exists('profile_tabs')){
1756         function profile_tabs($a, $is_owner=False, $nickname=Null){
1757                 //echo "<pre>"; var_dump($a->user); killme();
1758
1759                 if (is_null($nickname))
1760                         $nickname  = $a->user['nickname'];
1761
1762                 if(x($_GET,'tab'))
1763                         $tab = notags(trim($_GET['tab']));
1764
1765                 $url = $a->get_baseurl() . '/profile/' . $nickname;
1766
1767                 $tabs = array(
1768                         array(
1769                                 'label'=>t('Status'),
1770                                 'url' => $url,
1771                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
1772                                 'title' => t('Status Messages and Posts'),
1773                                 'id' => 'status-tab',
1774                         ),
1775                         array(
1776                                 'label' => t('Profile'),
1777                                 'url'   => $url.'/?tab=profile',
1778                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
1779                                 'title' => t('Profile Details'),
1780                                 'id' => 'profile-tab',
1781                         ),
1782                         array(
1783                                 'label' => t('Photos'),
1784                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
1785                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
1786                                 'title' => t('Photo Albums'),
1787                                 'id' => 'photo-tab',
1788                         ),
1789                 );
1790
1791                 if ($is_owner){
1792                         $tabs[] = array(
1793                                 'label' => t('Events'),
1794                                 'url'   => $a->get_baseurl() . '/events',
1795                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
1796                                 'title' => t('Events and Calendar'),
1797                                 'id' => 'events-tab',
1798                         );
1799                         $tabs[] = array(
1800                                 'label' => t('Personal Notes'),
1801                                 'url'   => $a->get_baseurl() . '/notes',
1802                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
1803                                 'title' => t('Only You Can See This'),
1804                                 'id' => 'notes-tab',
1805                         );
1806                 }
1807
1808
1809                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
1810                 call_hooks('profile_tabs', $arr);
1811
1812                 $tpl = get_markup_template('common_tabs.tpl');
1813
1814                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
1815         }
1816 }
1817
1818 function get_my_url() {
1819         if(x($_SESSION,'my_url'))
1820                 return $_SESSION['my_url'];
1821         return false;
1822 }
1823
1824 function zrl_init(&$a) {
1825         $tmp_str = get_my_url();
1826         if(validate_url($tmp_str)) {
1827                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
1828                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
1829                 call_hooks('zrl_init',$arr);
1830         }
1831 }
1832
1833 function zrl($s,$force = false) {
1834         if(! strlen($s))
1835                 return $s;
1836         if((! strpos($s,'/profile/')) && (! $force))
1837                 return $s;
1838         if($force && substr($s,-1,1) !== '/')
1839                 $s = $s . '/';
1840         $achar = strpos($s,'?') ? '&' : '?';
1841         $mine = get_my_url();
1842         if($mine and ! link_compare($mine,$s))
1843                 return $s . $achar . 'zrl=' . urlencode($mine);
1844         return $s;
1845 }
1846
1847 /**
1848 * returns querystring as string from a mapped array
1849 *
1850 * @param params Array
1851 * @return string
1852 */
1853 function build_querystring($params, $name=null) {
1854     $ret = "";
1855     foreach($params as $key=>$val) {
1856         if(is_array($val)) {
1857             if($name==null) {
1858                 $ret .= build_querystring($val, $key);
1859             } else {
1860                 $ret .= build_querystring($val, $name."[$key]");
1861             }
1862         } else {
1863             $val = urlencode($val);
1864             if($name!=null) {
1865                 $ret.=$name."[$key]"."=$val&";
1866             } else {
1867                 $ret.= "$key=$val&";
1868             }
1869         }
1870     }
1871     return $ret;
1872 }
1873
1874 /**
1875 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
1876 *
1877 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
1878 */
1879 function curPageURL() {
1880         $pageURL = 'http';
1881         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
1882         $pageURL .= "://";
1883         if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
1884                 $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
1885         } else {
1886                 $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
1887         }
1888         return $pageURL;
1889 }
1890
1891 function random_digits($digits) {
1892         $rn = '';
1893         for($i = 0; $i < $digits; $i++) {
1894                 $rn .= rand(0,9);
1895         }
1896         return $rn;
1897 }
1898
1899 function get_cachefile($file, $writemode = true) {
1900         $cache = get_config("system","itemcache");
1901
1902         if ($cache == "")
1903                 return("");
1904
1905         if (!is_dir($cache))
1906                 return("");
1907
1908         $subfolder = $cache."/".substr($file, 0, 2);
1909
1910         $cachepath = $subfolder."/".$file;
1911
1912         if ($writemode) {
1913                 if (!is_dir($subfolder)) {
1914                         mkdir($subfolder);
1915                         chmod($subfolder, 0777);
1916                 }
1917         }
1918
1919         return($cachepath);
1920 }
1921
1922 function clear_cache($basepath = "", $path = "") {
1923         if ($path == "") {
1924                 $basepath = get_config('system','itemcache');
1925                 $path = $basepath;
1926         }
1927
1928         if (($path == "") OR (!is_dir($path)))
1929                 return;
1930
1931         if (substr(realpath($path), 0, strlen($basepath)) != $basepath)
1932                 return;
1933
1934         $cachetime = (int)get_config('system','itemcache_duration');
1935         if ($cachetime == 0)
1936                 $cachetime = 86400;
1937
1938         if ($dh = opendir($path)) {
1939                 while (($file = readdir($dh)) !== false) {
1940                         $fullpath = $path."/".$file;
1941                         if ((filetype($fullpath) == "dir") and ($file != ".") and ($file != ".."))
1942                                 clear_cache($basepath, $fullpath);
1943                         if ((filetype($fullpath) == "file") and (filectime($fullpath) < (time() - $cachetime)))
1944                                 unlink($fullpath);
1945                 }
1946                 closedir($dh);
1947         }
1948 }
1949
1950 function set_template_engine(&$a, $engine = 'internal') {
1951
1952         $a->theme['template_engine'] = 'internal';
1953
1954         if(is_writable('view/smarty3/')) {
1955                 switch($engine) {
1956                         case 'smarty3':
1957                                 $a->theme['template_engine'] = 'smarty3';
1958                                 break;
1959                         default:
1960                                 break;
1961                 }
1962         }
1963 }