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',      '3.1.1589' );
  16 define ( 'DFRN_PROTOCOL_VERSION',  '2.23'    );
  17 define ( 'DB_UPDATE_VERSION',      1159      );
  18 define ( 'EOL',                    "<br />\r\n"     );
  19 define ( 'ATOM_TIME',              'Y-m-d\TH:i:s\Z' );
  20
  21
  22 /**
  23  *
  24  * Image storage quality. Lower numbers save space at cost of image detail.
  25  * For ease of upgrade, please do not change here. Change jpeg quality with
  26  * $a->config['system']['jpeg_quality'] = n;
  27  * in .htconfig.php, where n is netween 1 and 100, and with very poor results
  28  * below about 50
  29  *
  30  */
  31
  32 define ( 'JPEG_QUALITY',            100  );
  33 /**
  34  * $a->config['system']['png_quality'] from 0 (uncompressed) to 9
  35  */
  36 define ( 'PNG_QUALITY',             8  );
  37
  38 /**
  39  *
  40  * An alternate way of limiting picture upload sizes. Specify the maximum pixel
  41  * length that pictures are allowed to be (for non-square pictures, it will apply
  42  * to the longest side). Pictures longer than this length will be resized to be
  43  * this length (on the longest side, the other side will be scaled appropriately).
  44  * Modify this value using
  45  *
  46  *    $a->config['system']['max_image_length'] = n;
  47  *
  48  * in .htconfig.php
  49  *
  50  * If you don't want to set a maximum length, set to -1. The default value is
  51  * defined by 'MAX_IMAGE_LENGTH' below.
  52  *
  53  */
  54 define ( 'MAX_IMAGE_LENGTH',        -1  );
  55
  56
  57 /**
  58  * Not yet used
  59  */
  60
  61 define ( 'DEFAULT_DB_ENGINE',  'MyISAM'  );
  62
  63 /**
  64  * SSL redirection policies
  65  */
  66
  67 define ( 'SSL_POLICY_NONE',         0 );
  68 define ( 'SSL_POLICY_FULL',         1 );
  69 define ( 'SSL_POLICY_SELFSIGN',     2 );
  70
  71
  72 /**
  73  * log levels
  74  */
  75
  76 define ( 'LOGGER_NORMAL',          0 );
  77 define ( 'LOGGER_TRACE',           1 );
  78 define ( 'LOGGER_DEBUG',           2 );
  79 define ( 'LOGGER_DATA',            3 );
  80 define ( 'LOGGER_ALL',             4 );
  81
  82 /**
  83  * registration policies
  84  */
  85
  86 define ( 'REGISTER_CLOSED',        0 );
  87 define ( 'REGISTER_APPROVE',       1 );
  88 define ( 'REGISTER_OPEN',          2 );
  89
  90 /**
  91  * relationship types
  92  */
  93
  94 define ( 'CONTACT_IS_FOLLOWER', 1);
  95 define ( 'CONTACT_IS_SHARING',  2);
  96 define ( 'CONTACT_IS_FRIEND',   3);
  97
  98
  99 /**
 100  * DB update return values
 101  */
 102
 103 define ( 'UPDATE_SUCCESS', 0);
 104 define ( 'UPDATE_FAILED',  1);
 105
 106
 107 /**
 108  *
 109  * page/profile types
 110  *
 111  * PAGE_NORMAL is a typical personal profile account
 112  * PAGE_SOAPBOX automatically approves all friend requests as CONTACT_IS_SHARING, (readonly)
 113  * PAGE_COMMUNITY automatically approves all friend requests as CONTACT_IS_SHARING, but with
 114  *      write access to wall and comments (no email and not included in page owner's ACL lists)
 115  * PAGE_FREELOVE automatically approves all friend requests as full friends (CONTACT_IS_FRIEND).
 116  *
 117  */
 118
 119 define ( 'PAGE_NORMAL',            0 );
 120 define ( 'PAGE_SOAPBOX',           1 );
 121 define ( 'PAGE_COMMUNITY',         2 );
 122 define ( 'PAGE_FREELOVE',          3 );
 123 define ( 'PAGE_BLOG',              4 );
 124 define ( 'PAGE_PRVGROUP',          5 );
 125
 126 /**
 127  * Network and protocol family types
 128  */
 129
 130 define ( 'NETWORK_DFRN',             'dfrn');    // Friendica, Mistpark, other DFRN implementations
 131 define ( 'NETWORK_ZOT',              'zot!');    // Zot!
 132 define ( 'NETWORK_OSTATUS',          'stat');    // status.net, identi.ca, GNU-social, other OStatus implementations
 133 define ( 'NETWORK_FEED',             'feed');    // RSS/Atom feeds with no known "post/notify" protocol
 134 define ( 'NETWORK_DIASPORA',         'dspr');    // Diaspora
 135 define ( 'NETWORK_MAIL',             'mail');    // IMAP/POP
 136 define ( 'NETWORK_MAIL2',            'mai2');    // extended IMAP/POP
 137 define ( 'NETWORK_FACEBOOK',         'face');    // Facebook API
 138 define ( 'NETWORK_LINKEDIN',         'lnkd');    // LinkedIn
 139 define ( 'NETWORK_XMPP',             'xmpp');    // XMPP
 140 define ( 'NETWORK_MYSPACE',          'mysp');    // MySpace
 141 define ( 'NETWORK_GPLUS',            'goog');    // Google+
 142
 143 define ( 'NETWORK_PHANTOM',          'unkn');    // Place holder
 144
 145 /**
 146  * These numbers are used in stored permissions
 147  * and existing allocations MUST NEVER BE CHANGED
 148  * OR RE-ASSIGNED! You may only add to them.
 149  */
 150
 151 $netgroup_ids = array(
 152         NETWORK_DFRN     => (-1),
 153         NETWORK_ZOT      => (-2),
 154         NETWORK_OSTATUS  => (-3),
 155         NETWORK_FEED     => (-4),
 156         NETWORK_DIASPORA => (-5),
 157         NETWORK_MAIL     => (-6),
 158         NETWORK_MAIL2    => (-7),
 159         NETWORK_FACEBOOK => (-8),
 160         NETWORK_LINKEDIN => (-9),
 161         NETWORK_XMPP     => (-10),
 162         NETWORK_MYSPACE  => (-11),
 163         NETWORK_GPLUS    => (-12),
 164
 165         NETWORK_PHANTOM  => (-127),
 166 );
 167
 168
 169 /**
 170  * Maximum number of "people who like (or don't like) this"  that we will list by name
 171  */
 172
 173 define ( 'MAX_LIKERS',    75);
 174
 175 /**
 176  * Communication timeout
 177  */
 178
 179 define ( 'ZCURL_TIMEOUT' , (-1));
 180
 181
 182 /**
 183  * email notification options
 184  */
 185
 186 define ( 'NOTIFY_INTRO',    0x0001 );
 187 define ( 'NOTIFY_CONFIRM',  0x0002 );
 188 define ( 'NOTIFY_WALL',     0x0004 );
 189 define ( 'NOTIFY_COMMENT',  0x0008 );
 190 define ( 'NOTIFY_MAIL',     0x0010 );
 191 define ( 'NOTIFY_SUGGEST',  0x0020 );
 192 define ( 'NOTIFY_PROFILE',  0x0040 );
 193 define ( 'NOTIFY_TAGSELF',  0x0080 );
 194 define ( 'NOTIFY_TAGSHARE', 0x0100 );
 195 define ( 'NOTIFY_POKE',     0x0200 );
 196
 197 define ( 'NOTIFY_SYSTEM',   0x8000 );
 198
 199
 200 /**
 201  * Tag/term types
 202  */
 203
 204 define ( 'TERM_UNKNOWN',   0 );
 205 define ( 'TERM_HASHTAG',   1 );
 206 define ( 'TERM_MENTION',   2 );
 207 define ( 'TERM_CATEGORY',  3 );
 208 define ( 'TERM_PCATEGORY', 4 );
 209 define ( 'TERM_FILE',      5 );
 210 define ( 'TERM_SAVEDSEARCH', 6 );
 211
 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                 public  $performance = array();
 359
 360                 public $nav_sel;
 361
 362                 public $category;
 363
 364
 365                 // Allow themes to control internal parameters
 366                 // by changing App values in theme.php
 367
 368                 public  $sourcename = '';
 369                 public  $videowidth = 425;
 370                 public  $videoheight = 350;
 371                 public  $force_max_items = 0;
 372                 public  $theme_thread_allow = true;
 373
 374                 // An array for all theme-controllable parameters
 375                 // Mostly unimplemented yet. Only options 'stylesheet' and
 376                 // beyond are used.
 377
 378                 public  $theme = array(
 379                         'sourcename' => '',
 380                         'videowidth' => 425,
 381                         'videoheight' => 350,
 382                         'force_max_items' => 0,
 383                         'thread_allow' => true,
 384                         'stylesheet' => '',
 385                         'template_engine' => 'internal',
 386                 );
 387
 388                 private $ldelim = array(
 389                         'internal' => '',
 390                         'smarty3' => '{{'
 391                 );
 392                 private $rdelim = array(
 393                         'internal' => '',
 394                         'smarty3' => '}}'
 395                 );
 396
 397                 private $scheme;
 398                 private $hostname;
 399                 private $baseurl;
 400                 private $db;
 401
 402                 private $curl_code;
 403                 private $curl_headers;
 404
 405                 private $cached_profile_image;
 406                 private $cached_profile_picdate;
 407
 408                 function __construct() {
 409
 410                         global $default_timezone, $argv, $argc;
 411
 412                         $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
 413
 414                         date_default_timezone_set($this->timezone);
 415
 416                         $this->performance["start"] = microtime(true);
 417                         $this->performance["database"] = 0;
 418                         $this->performance["network"] = 0;
 419                         $this->performance["rendering"] = 0;
 420                         $this->performance["parser"] = 0;
 421                         $this->performance["marktime"] = 0;
 422                         $this->performance["markstart"] = microtime(true);
 423
 424                         $this->config = array();
 425                         $this->page = array();
 426                         $this->pager= array();
 427
 428                         $this->query_string = '';
 429
 430                         startup();
 431
 432                         $this->scheme = 'http';
 433                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
 434                                 $this->scheme = 'https';
 435                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
 436                         $this->scheme = 'https';
 437
 438                         if(x($_SERVER,'SERVER_NAME')) {
 439                                 $this->hostname = $_SERVER['SERVER_NAME'];
 440
 441                                 // See bug 437 - this didn't work so disabling it
 442                                 //if(stristr($this->hostname,'xn--')) {
 443                                         // PHP or webserver may have converted idn to punycode, so
 444                                         // convert punycode back to utf-8
 445                                 //      require_once('library/simplepie/idn/idna_convert.class.php');
 446                                 //      $x = new idna_convert();
 447                                 //      $this->hostname = $x->decode($_SERVER['SERVER_NAME']);
 448                                 //}
 449
 450                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
 451                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
 452                                 /**
 453                                  * Figure out if we are running at the top of a domain
 454                                  * or in a sub-directory and adjust accordingly
 455                                  */
 456
 457                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
 458                                 if(isset($path) && strlen($path) && ($path != $this->path))
 459                                         $this->path = $path;
 460                         }
 461                         if (is_array($argv) && $argc>1 && substr(end($argv), 0, 4)=="http" ) {
 462                                 $this->set_baseurl(array_pop($argv) );
 463                                 $argc --;
 464                         }
 465
 466                         set_include_path(
 467                                         "include/$this->hostname" . PATH_SEPARATOR
 468                                         . 'include' . PATH_SEPARATOR
 469                                         . 'library' . PATH_SEPARATOR
 470                                         . 'library/phpsec' . PATH_SEPARATOR
 471                                         . 'library/langdet' . PATH_SEPARATOR
 472                                         . '.' );
 473
 474
 475                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
 476                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
 477                                 // removing trailing / - maybe a nginx problem
 478                                 if (substr($this->query_string, 0, 1) == "/")
 479                                         $this->query_string = substr($this->query_string, 1);
 480                         }
 481                         if(x($_GET,'q'))
 482                                 $this->cmd = trim($_GET['q'],'/\\');
 483
 484                         // unix style "homedir"
 485
 486                         if(substr($this->cmd,0,1) === '~')
 487                                 $this->cmd = 'profile/' . substr($this->cmd,1);
 488
 489                         // Diaspora style profile url
 490
 491                         if(substr($this->cmd,0,2) === 'u/')
 492                                 $this->cmd = 'profile/' . substr($this->cmd,2);
 493
 494                         /**
 495                          *
 496                          * Break the URL path into C style argc/argv style arguments for our
 497                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
 498                          * will be 3 (integer) and $this->argv will contain:
 499                          *   [0] => 'module'
 500                          *   [1] => 'arg1'
 501                          *   [2] => 'arg2'
 502                          *
 503                          *
 504                          * There will always be one argument. If provided a naked domain
 505                          * URL, $this->argv[0] is set to "home".
 506                          *
 507                          */
 508
 509                         $this->argv = explode('/',$this->cmd);
 510                         $this->argc = count($this->argv);
 511                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
 512                                 $this->module = str_replace(".", "_", $this->argv[0]);
 513                                 $this->module = str_replace("-", "_", $this->module);
 514                         }
 515                         else {
 516                                 $this->argc = 1;
 517                                 $this->argv = array('home');
 518                                 $this->module = 'home';
 519                         }
 520
 521                         /**
 522                          * See if there is any page number information, and initialise
 523                          * pagination
 524                          */
 525
 526                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
 527                         $this->pager['itemspage'] = 50;
 528                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 529                         if($this->pager['start'] < 0)
 530                                 $this->pager['start'] = 0;
 531                         $this->pager['total'] = 0;
 532
 533                         /**
 534                          * Detect mobile devices
 535                          */
 536
 537                         $mobile_detect = new Mobile_Detect();
 538                         $this->is_mobile = $mobile_detect->isMobile();
 539                         $this->is_tablet = $mobile_detect->isTablet();
 540                 }
 541
 542                 function get_basepath() {
 543
 544                         $basepath = get_config("system", "basepath");
 545
 546                         if ($basepath == "")
 547                                 $basepath = $_SERVER["DOCUMENT_ROOT"];
 548
 549                         if ($basepath == "")
 550                                 $basepath = $_SERVER["PWD"];
 551
 552                         return($basepath);
 553                 }
 554
 555                 function get_baseurl($ssl = false) {
 556
 557                         $scheme = $this->scheme;
 558
 559                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
 560                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
 561                                         $scheme = 'https';
 562
 563                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
 564                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
 565
 566                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
 567                                         if($ssl)
 568                                                 $scheme = 'https';
 569                                         else
 570                                                 $scheme = 'http';
 571                                 }
 572                         }
 573
 574                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
 575                         return $this->baseurl;
 576                 }
 577
 578                 function set_baseurl($url) {
 579                         $parsed = @parse_url($url);
 580
 581                         $this->baseurl = $url;
 582
 583                         if($parsed) {
 584                                 $this->scheme = $parsed['scheme'];
 585
 586                                 $this->hostname = $parsed['host'];
 587                                 if(x($parsed,'port'))
 588                                         $this->hostname .= ':' . $parsed['port'];
 589                                 if(x($parsed,'path'))
 590                                         $this->path = trim($parsed['path'],'\\/');
 591                         }
 592
 593                 }
 594
 595                 function get_hostname() {
 596                         return $this->hostname;
 597                 }
 598
 599                 function set_hostname($h) {
 600                         $this->hostname = $h;
 601                 }
 602
 603                 function set_path($p) {
 604                         $this->path = trim(trim($p),'/');
 605                 }
 606
 607                 function get_path() {
 608                         return $this->path;
 609                 }
 610
 611                 function set_pager_total($n) {
 612                         $this->pager['total'] = intval($n);
 613                 }
 614
 615                 function set_pager_itemspage($n) {
 616                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
 617                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 618
 619                 }
 620
 621                 function init_pagehead() {
 622                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
 623                         if($interval < 10000)
 624                                 $interval = 40000;
 625
 626                         $this->page['title'] = $this->config['sitename'];
 627
 628                         /* put the head template at the beginning of page['htmlhead']
 629                          * since the code added by the modules frequently depends on it
 630                          * being first
 631                          */
 632                         if(!isset($this->page['htmlhead']))
 633                                 $this->page['htmlhead'] = '';
 634
 635                         // If we're using Smarty, then doing replace_macros() will replace
 636                         // any unrecognized variables with a blank string. Since we delay
 637                         // replacing $stylesheet until later, we need to replace it now
 638                         // with another variable name
 639                         if($this->theme['template_engine'] === 'smarty3')
 640                                 $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
 641                         else
 642                                 $stylesheet = '$stylesheet';
 643
 644                         $tpl = get_markup_template('head.tpl');
 645                         $this->page['htmlhead'] = replace_macros($tpl,array(
 646                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
 647                                 '$local_user' => local_user(),
 648                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
 649                                 '$delitem' => t('Delete this item?'),
 650                                 '$comment' => t('Comment'),
 651                                 '$showmore' => t('show more'),
 652                                 '$showfewer' => t('show fewer'),
 653                                 '$update_interval' => $interval,
 654                                 '$stylesheet' => $stylesheet
 655                         )) . $this->page['htmlhead'];
 656                 }
 657
 658                 function init_page_end() {
 659                         if(!isset($this->page['end']))
 660                                 $this->page['end'] = '';
 661                         $tpl = get_markup_template('end.tpl');
 662                         $this->page['end'] = replace_macros($tpl,array(
 663                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
 664                         )) . $this->page['end'];
 665                 }
 666
 667                 function set_curl_code($code) {
 668                         $this->curl_code = $code;
 669                 }
 670
 671                 function get_curl_code() {
 672                         return $this->curl_code;
 673                 }
 674
 675                 function set_curl_headers($headers) {
 676                         $this->curl_headers = $headers;
 677                 }
 678
 679                 function get_curl_headers() {
 680                         return $this->curl_headers;
 681                 }
 682
 683                 function get_cached_avatar_image($avatar_image){
 684                         if($this->cached_profile_image[$avatar_image])
 685                                 return $this->cached_profile_image[$avatar_image];
 686
 687                         $path_parts = explode("/",$avatar_image);
 688                         $common_filename = $path_parts[count($path_parts)-1];
 689
 690                         if($this->cached_profile_picdate[$common_filename]){
 691                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 692                         } else {
 693                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like \"%%/%s\"",
 694                                         $common_filename);
 695                                 if(! count($r)){
 696                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
 697                                 } else {
 698                                         $this->cached_profile_picdate[$common_filename] = "?rev=" . urlencode($r[0]['picdate']);
 699                                         $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 700                                 }
 701                         }
 702                         return $this->cached_profile_image[$avatar_image];
 703                 }
 704
 705                 function get_template_engine() {
 706                         return $this->theme['template_engine'];
 707                 }
 708
 709                 function set_template_engine($engine = 'internal') {
 710
 711                         $this->theme['template_engine'] = 'internal';
 712
 713                         switch($engine) {
 714                                 case 'smarty3':
 715                                         if(is_writable('view/smarty3/'))
 716                                                 $this->theme['template_engine'] = 'smarty3';
 717                                         break;
 718                                 default:
 719                                         break;
 720                         }
 721                 }
 722
 723                 function get_template_ldelim($engine = 'internal') {
 724                         return $this->ldelim[$engine];
 725                 }
 726
 727                 function get_template_rdelim($engine = 'internal') {
 728                         return $this->rdelim[$engine];
 729                 }
 730
 731                 function save_timestamp($stamp, $value) {
 732                         $duration = (float)(microtime(true)-$stamp);
 733
 734                         $this->performance[$value] += (float)$duration;
 735                         $this->performance["marktime"] += (float)$duration;
 736                 }
 737
 738                 function mark_timestamp($mark) {
 739                         //$this->performance["markstart"] -= microtime(true) - $this->performance["marktime"];
 740                         $this->performance["markstart"] = microtime(true) - $this->performance["markstart"] - $this->performance["marktime"];
 741                 }
 742         }
 743 }
 744
 745 // retrieve the App structure
 746 // useful in functions which require it but don't get it passed to them
 747
 748 if(! function_exists('get_app')) {
 749         function get_app() {
 750                 global $a;
 751                 return $a;
 752         }
 753 };
 754
 755
 756 // Multi-purpose function to check variable state.
 757 // Usage: x($var) or $x($array,'key')
 758 // returns false if variable/key is not set
 759 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
 760 // e.g. x('') or x(0) returns 0;
 761
 762 if(! function_exists('x')) {
 763         function x($s,$k = NULL) {
 764                 if($k != NULL) {
 765                         if((is_array($s)) && (array_key_exists($k,$s))) {
 766                                 if($s[$k])
 767                                         return (int) 1;
 768                                 return (int) 0;
 769                 }
 770                         return false;
 771                 }
 772                 else {
 773                         if(isset($s)) {
 774                                 if($s) {
 775                                         return (int) 1;
 776                                 }
 777                                 return (int) 0;
 778                         }
 779                         return false;
 780                 }
 781         }
 782 }
 783
 784 // called from db initialisation if db is dead.
 785
 786 if(! function_exists('system_unavailable')) {
 787         function system_unavailable() {
 788                 include('system_unavailable.php');
 789                 system_down();
 790                 killme();
 791         }
 792 }
 793
 794
 795
 796 function clean_urls() {
 797         global $a;
 798         //      if($a->config['system']['clean_urls'])
 799         return true;
 800         //      return false;
 801 }
 802
 803 function z_path() {
 804         global $a;
 805         $base = $a->get_baseurl();
 806         if(! clean_urls())
 807                 $base .= '/?q=';
 808         return $base;
 809 }
 810
 811 function z_root() {
 812         global $a;
 813         return $a->get_baseurl();
 814 }
 815
 816 function absurl($path) {
 817         if(strpos($path,'/') === 0)
 818                 return z_path() . $path;
 819         return $path;
 820 }
 821
 822 function is_ajax() {
 823         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
 824 }
 825
 826
 827 // Primarily involved with database upgrade, but also sets the
 828 // base url for use in cmdline programs which don't have
 829 // $_SERVER variables
 830
 831
 832 if(! function_exists('check_config')) {
 833         function check_config(&$a) {
 834
 835                 $url = get_config('system','url');
 836
 837                 // if the url isn't set or the stored url is radically different
 838                 // than the currently visited url, store the current value accordingly.
 839                 // "Radically different" ignores common variations such as http vs https
 840                 // and www.example.com vs example.com.
 841                 // We will only change the url to an ip address if there is no existing setting
 842
 843                 if(! x($url))
 844                         $url = set_config('system','url',$a->get_baseurl());
 845                 if((! link_compare($url,$a->get_baseurl())) && (! preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/",$a->get_hostname)))
 846                         $url = set_config('system','url',$a->get_baseurl());
 847
 848
 849                 $build = get_config('system','build');
 850                 if(! x($build))
 851                         $build = set_config('system','build',DB_UPDATE_VERSION);
 852
 853                 if($build != DB_UPDATE_VERSION) {
 854                         $stored = intval($build);
 855                         $current = intval(DB_UPDATE_VERSION);
 856                         if(($stored < $current) && file_exists('update.php')) {
 857
 858                                 load_config('database');
 859
 860                                 // We're reporting a different version than what is currently installed.
 861                                 // Run any existing update scripts to bring the database up to current.
 862
 863                                 require_once('update.php');
 864
 865                                 // make sure that boot.php and update.php are the same release, we might be
 866                                 // updating right this very second and the correct version of the update.php
 867                                 // file may not be here yet. This can happen on a very busy site.
 868
 869                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
 870
 871                                         for($x = $stored; $x < $current; $x ++) {
 872                                                 if(function_exists('update_' . $x)) {
 873
 874                                                         // There could be a lot of processes running or about to run.
 875                                                         // We want exactly one process to run the update command.
 876                                                         // So store the fact that we're taking responsibility
 877                                                         // after first checking to see if somebody else already has.
 878
 879                                                         // If the update fails or times-out completely you may need to
 880                                                         // delete the config entry to try again.
 881
 882                                                         $t = get_config('database','update_' . $x);
 883                                                         if($t !== false)
 884                                                                 break;
 885                                                         set_config('database','update_' . $x, time());
 886
 887                                                         // call the specific update
 888
 889                                                         $func = 'update_' . $x;
 890                                                         $retval = $func();
 891                                                         if($retval) {
 892                                                                 //send the administrator an e-mail
 893                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
 894                                                                 $email_msg = replace_macros($email_tpl, array(
 895                                                                         '$sitename' => $a->config['sitename'],
 896                                                                         '$siteurl' =>  $a->get_baseurl(),
 897                                                                         '$update' => $x,
 898                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
 899                                                                 ));
 900                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
 901                                                                 require_once('include/email.php');
 902                                                                 $subject = email_header_encode($subject,'UTF-8');
 903                                                                 mail($a->config['admin_email'], $subject, $email_msg,
 904                                                                         'From: ' . 'Administrator' . '@' . $_SERVER['SERVER_NAME'] . "\n"
 905                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
 906                                                                         . 'Content-transfer-encoding: 8bit' );
 907                                                                 //try the logger
 908                                                                 logger('CRITICAL: Update Failed: '. $x);
 909                                                                 break;
 910                                                         }
 911                                                         else {
 912                                                                 set_config('database','update_' . $x, 'success');
 913                                                                 set_config('system','build', $x + 1);
 914                                                         }
 915                                                 }
 916                                         }
 917                                 }
 918                         }
 919                 }
 920
 921                 return;
 922         }
 923 }
 924
 925
 926 if(! function_exists('check_plugins')) {
 927         function check_plugins(&$a) {
 928
 929                 /**
 930                  *
 931                  * Synchronise plugins:
 932                  *
 933                  * $a->config['system']['addon'] contains a comma-separated list of names
 934                  * of plugins/addons which are used on this system.
 935                  * Go through the database list of already installed addons, and if we have
 936                  * an entry, but it isn't in the config list, call the uninstall procedure
 937                  * and mark it uninstalled in the database (for now we'll remove it).
 938                  * Then go through the config list and if we have a plugin that isn't installed,
 939                  * call the install procedure and add it to the database.
 940                  *
 941                  */
 942
 943                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
 944                 if(count($r))
 945                         $installed = $r;
 946                 else
 947                         $installed = array();
 948
 949                 $plugins = get_config('system','addon');
 950                 $plugins_arr = array();
 951
 952                 if($plugins)
 953                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
 954
 955                 $a->plugins = $plugins_arr;
 956
 957                 $installed_arr = array();
 958
 959                 if(count($installed)) {
 960                         foreach($installed as $i) {
 961                                 if(! in_array($i['name'],$plugins_arr)) {
 962                                         uninstall_plugin($i['name']);
 963                                 }
 964                                 else {
 965                                         $installed_arr[] = $i['name'];
 966                                 }
 967                         }
 968                 }
 969
 970                 if(count($plugins_arr)) {
 971                         foreach($plugins_arr as $p) {
 972                                 if(! in_array($p,$installed_arr)) {
 973                                         install_plugin($p);
 974                                 }
 975                         }
 976                 }
 977
 978
 979                 load_hooks();
 980
 981                 return;
 982         }
 983 }
 984
 985
 986 function get_guid($size=16) {
 987         $exists = true; // assume by default that we don't have a unique guid
 988         do {
 989                 $s = random_string($size);
 990                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
 991                 if(! count($r))
 992                         $exists = false;
 993         } while($exists);
 994         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
 995         return $s;
 996 }
 997
 998
 999 // wrapper for adding a login box. If $register == true provide a registration
1000 // link. This will most always depend on the value of $a->config['register_policy'].
1001 // returns the complete html for inserting into the page
1002
1003 if(! function_exists('login')) {
1004         function login($register = false, $hiddens=false) {
1005                 $a = get_app();
1006                 $o = "";
1007                 $reg = false;
1008                 if ($register) {
1009                         $reg = array(
1010                                 'title' => t('Create a New Account'),
1011                                 'desc' => t('Register')
1012                         );
1013                 }
1014
1015                 $noid = get_config('system','no_openid');
1016
1017                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
1018
1019                 if(local_user()) {
1020                         $tpl = get_markup_template("logout.tpl");
1021                 }
1022                 else {
1023                         $a->page['htmlhead'] .= replace_macros(get_markup_template("login_head.tpl"),array(
1024                                 '$baseurl'              => $a->get_baseurl(true)
1025                         ));
1026
1027                         $tpl = get_markup_template("login.tpl");
1028                         $_SESSION['return_url'] = $a->query_string;
1029                         $a->module = 'login';
1030                 }
1031
1032                 $o .= replace_macros($tpl, array(
1033
1034                         '$dest_url'     => $dest_url,
1035                         '$logout'       => t('Logout'),
1036                         '$login'        => t('Login'),
1037
1038                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
1039                         '$lpassword'    => array('password', t('Password: '), '', ''),
1040                         '$lremember'    => array('remember', t('Remember me'), 0, ''),
1041
1042                         '$openid'               => !$noid,
1043                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
1044
1045                         '$hiddens'      => $hiddens,
1046
1047                         '$register'     => $reg,
1048
1049                         '$lostpass'     => t('Forgot your password?'),
1050                         '$lostlink'     => t('Password Reset'),
1051
1052                         '$tostitle'     => t('Website Terms of Service'),
1053                         '$toslink'      => t('terms of service'),
1054
1055                         '$privacytitle' => t('Website Privacy Policy'),
1056                         '$privacylink'  => t('privacy policy'),
1057
1058                 ));
1059
1060                 call_hooks('login_hook',$o);
1061
1062                 return $o;
1063         }
1064 }
1065
1066 // Used to end the current process, after saving session state.
1067
1068 if(! function_exists('killme')) {
1069         function killme() {
1070                 session_write_close();
1071                 exit;
1072         }
1073 }
1074
1075 // redirect to another URL and terminate this process.
1076
1077 if(! function_exists('goaway')) {
1078         function goaway($s) {
1079                 header("Location: $s");
1080                 killme();
1081         }
1082 }
1083
1084
1085 // Returns the uid of locally logged in user or false.
1086
1087 if(! function_exists('local_user')) {
1088         function local_user() {
1089                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1090                         return intval($_SESSION['uid']);
1091                 return false;
1092         }
1093 }
1094
1095 // Returns contact id of authenticated site visitor or false
1096
1097 if(! function_exists('remote_user')) {
1098         function remote_user() {
1099                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1100                         return intval($_SESSION['visitor_id']);
1101                 return false;
1102         }
1103 }
1104
1105 // contents of $s are displayed prominently on the page the next time
1106 // a page is loaded. Usually used for errors or alerts.
1107
1108 if(! function_exists('notice')) {
1109         /**
1110          * Show an error message to user.
1111          *
1112          * This function save text in session, to be shown to the user at next page load
1113          *
1114          * @param string $s - Text of notice
1115          */
1116         function notice($s) {
1117                 $a = get_app();
1118                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
1119                 if($a->interactive)
1120                         $_SESSION['sysmsg'][] = $s;
1121         }
1122 }
1123 if(! function_exists('info')) {
1124         /**
1125          * Show an info message to user.
1126          *
1127          * This function save text in session, to be shown to the user at next page load
1128          *
1129          * @param string $s - Text of notice
1130          */
1131         function info($s) {
1132                 $a = get_app();
1133                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
1134                 if($a->interactive)
1135                         $_SESSION['sysmsg_info'][] = $s;
1136         }
1137 }
1138
1139
1140 // wrapper around config to limit the text length of an incoming message
1141
1142 if(! function_exists('get_max_import_size')) {
1143         function get_max_import_size() {
1144                 global $a;
1145                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1146         }
1147 }
1148
1149
1150
1151 /**
1152  *
1153  * Function : profile_load
1154  * @parameter App    $a
1155  * @parameter string $nickname
1156  * @parameter int    $profile
1157  *
1158  * Summary: Loads a profile into the page sidebar.
1159  * The function requires a writeable copy of the main App structure, and the nickname
1160  * of a registered local account.
1161  *
1162  * If the viewer is an authenticated remote viewer, the profile displayed is the
1163  * one that has been configured for his/her viewing in the Contact manager.
1164  * Passing a non-zero profile ID can also allow a preview of a selected profile
1165  * by the owner.
1166  *
1167  * Profile information is placed in the App structure for later retrieval.
1168  * Honours the owner's chosen theme for display.
1169  *
1170  * IMPORTANT: Should only be run in the _init() functions of a module. That ensures that
1171  * the theme is chosen before the _init() function of a theme is run, which will usually
1172  * load a lot of theme-specific content
1173  *
1174  */
1175
1176 if(! function_exists('profile_load')) {
1177         function profile_load(&$a, $nickname, $profile = 0) {
1178
1179                 $user = q("select uid from user where nickname = '%s' limit 1",
1180                         dbesc($nickname)
1181                 );
1182
1183                 if(! ($user && count($user))) {
1184                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1185                         notice( t('Requested account is not available.') . EOL );
1186                         $a->error = 404;
1187                         return;
1188                 }
1189
1190                 if(remote_user() && count($_SESSION['remote'])) {
1191                         foreach($_SESSION['remote'] as $visitor) {
1192                                 if($visitor['uid'] == $user[0]['uid']) {
1193                                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1194                                                 intval($visitor['cid'])
1195                                         );
1196                                         if(count($r))
1197                                                 $profile = $r[0]['profile-id'];
1198                                         break;
1199                                 }
1200                         }
1201                 }
1202
1203                 $r = null;
1204
1205                 if($profile) {
1206                         $profile_int = intval($profile);
1207                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1208                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1209                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1210                                         dbesc($nickname),
1211                                         intval($profile_int)
1212                         );
1213                 }
1214                 if((! $r) && (!  count($r))) {
1215                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1216                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1217                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1218                                         dbesc($nickname)
1219                         );
1220                 }
1221
1222                 if(($r === false) || (! count($r))) {
1223                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1224                         notice( t('Requested profile is not available.') . EOL );
1225                         $a->error = 404;
1226                         return;
1227                 }
1228
1229                 // fetch user tags if this isn't the default profile
1230
1231                 if(! $r[0]['is-default']) {
1232                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1233                                         intval($r[0]['profile_uid'])
1234                         );
1235                         if($x && count($x))
1236                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1237                 }
1238
1239                 $a->profile = $r[0];
1240
1241                 $a->profile['mobile-theme'] = get_pconfig($a->profile['profile_uid'], 'system', 'mobile_theme');
1242
1243
1244                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1245                 $_SESSION['theme'] = $a->profile['theme'];
1246                 $_SESSION['mobile-theme'] = $a->profile['mobile-theme'];
1247
1248                 /**
1249                  * load/reload current theme info
1250                  */
1251
1252                 $a->set_template_engine(); // reset the template engine to the default in case the user's theme doesn't specify one
1253
1254                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1255                 if (file_exists($theme_info_file)){
1256                         require_once($theme_info_file);
1257                 }
1258
1259                 if(! (x($a->page,'aside')))
1260                         $a->page['aside'] = '';
1261
1262                 if(local_user() && local_user() == $a->profile['uid']) {
1263                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1264                                 '$editprofile' => t('Edit profile'),
1265                                 '$profid' => $a->profile['id']
1266                         ));
1267                 }
1268
1269                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1270
1271                 $a->page['aside'] .= profile_sidebar($a->profile, $block);
1272
1273                 /*if(! $block)
1274                  $a->page['aside'] .= contact_block();*/
1275
1276                 return;
1277         }
1278 }
1279
1280
1281 /**
1282  *
1283  * Function: profile_sidebar
1284  *
1285  * Formats a profile for display in the sidebar.
1286  * It is very difficult to templatise the HTML completely
1287  * because of all the conditional logic.
1288  *
1289  * @parameter: array $profile
1290  *
1291  * Returns HTML string stuitable for sidebar inclusion
1292  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1293  *
1294  */
1295
1296
1297 if(! function_exists('profile_sidebar')) {
1298         function profile_sidebar($profile, $block = 0) {
1299
1300                 $a = get_app();
1301
1302                 $o = '';
1303                 $location = false;
1304                 $address = false;
1305                 $pdesc = true;
1306
1307                 if((! is_array($profile)) && (! count($profile)))
1308                         return $o;
1309
1310                 $profile['picdate'] = urlencode($profile['picdate']);
1311
1312                 call_hooks('profile_sidebar_enter', $profile);
1313
1314
1315                 // don't show connect link to yourself
1316                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1317
1318                 // don't show connect link to authenticated visitors either
1319
1320                 if(remote_user() && count($_SESSION['remote'])) {
1321                         foreach($_SESSION['remote'] as $visitor) {
1322                                 if($visitor['uid'] == $profile['uid']) {
1323                                         $connect = false;
1324                                         break;
1325                                 }
1326                         }
1327                 }
1328
1329                 if(get_my_url() && $profile['unkmail'])
1330                         $wallmessage = t('Message');
1331                 else
1332                         $wallmessage = false;
1333
1334
1335
1336                 // show edit profile to yourself
1337                 if ($profile['uid'] == local_user() && feature_enabled(local_user(),'multi_profiles')) {
1338                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1339
1340                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1341                                         local_user());
1342
1343                         $profile['menu'] = array(
1344                                 'chg_photo' => t('Change profile photo'),
1345                                 'cr_new' => t('Create New Profile'),
1346                                 'entries' => array(),
1347                         );
1348
1349                         if(count($r)) {
1350
1351                                 foreach($r as $rr) {
1352                                         $profile['menu']['entries'][] = array(
1353                                                 'photo' => $rr['thumb'],
1354                                                 'id' => $rr['id'],
1355                                                 'alt' => t('Profile Image'),
1356                                                 'profile_name' => $rr['profile-name'],
1357                                                 'isdefault' => $rr['is-default'],
1358                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1359                                                 'edit_visibility' => t('Edit visibility'),
1360
1361                                         );
1362                                 }
1363
1364
1365                         }
1366
1367
1368                 }
1369
1370
1371
1372
1373                 if((x($profile,'address') == 1)
1374                                 || (x($profile,'locality') == 1)
1375                                 || (x($profile,'region') == 1)
1376                                 || (x($profile,'postal-code') == 1)
1377                                 || (x($profile,'country-name') == 1))
1378                         $location = t('Location:');
1379
1380                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1381
1382
1383                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1384
1385                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1386
1387                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1388                         $location = $pdesc = $gender = $marital = $homepage = False;
1389                 }
1390
1391                 $firstname = ((strpos($profile['name'],' '))
1392                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1393                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1394
1395                 $diaspora = array(
1396                         'podloc' => $a->get_baseurl(),
1397                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1398                         'nickname' => $profile['nickname'],
1399                         'fullname' => $profile['name'],
1400                         'firstname' => $firstname,
1401                         'lastname' => $lastname,
1402                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1403                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1404                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1405                 );
1406
1407                 if (!$block){
1408                         $contact_block = contact_block();
1409                 }
1410
1411
1412                 $p = array();
1413                 foreach($profile as $k => $v) {
1414                         $k = str_replace('-','_',$k);
1415                         $p[$k] = $v;
1416                 }
1417
1418                 if($a->theme['template_engine'] === 'internal')
1419                         $location = template_escape($location);
1420
1421                 $tpl = get_markup_template('profile_vcard.tpl');
1422                 $o .= replace_macros($tpl, array(
1423                         '$profile' => $p,
1424                         '$connect'  => $connect,
1425                         '$wallmessage' => $wallmessage,
1426                         '$location' => $location,
1427                         '$gender'   => $gender,
1428                         '$pdesc'        => $pdesc,
1429                         '$marital'  => $marital,
1430                         '$homepage' => $homepage,
1431                         '$diaspora' => $diaspora,
1432                         '$contact_block' => $contact_block,
1433                 ));
1434
1435
1436                 $arr = array('profile' => &$profile, 'entry' => &$o);
1437
1438                 call_hooks('profile_sidebar', $arr);
1439
1440                 return $o;
1441         }
1442 }
1443
1444
1445 if(! function_exists('get_birthdays')) {
1446         function get_birthdays() {
1447
1448                 $a = get_app();
1449                 $o = '';
1450
1451                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1452                         return $o;
1453
1454 //              $mobile_detect = new Mobile_Detect();
1455 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1456
1457 //              if($is_mobile)
1458 //                      return $o;
1459
1460                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1461                 $bd_short = t('F d');
1462
1463                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1464                                 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
1465                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1466                                 ORDER BY `start` ASC ",
1467                                 intval(local_user()),
1468                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1469                                 dbesc(datetime_convert('UTC','UTC','now'))
1470                 );
1471
1472                 if($r && count($r)) {
1473                         $total = 0;
1474                         $now = strtotime('now');
1475                         $cids = array();
1476
1477                         $istoday = false;
1478                         foreach($r as $rr) {
1479                                 if(strlen($rr['name']))
1480                                         $total ++;
1481                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1482                                         $istoday = true;
1483                         }
1484                         $classtoday = $istoday ? ' birthday-today ' : '';
1485                         if($total) {
1486                                 foreach($r as &$rr) {
1487                                         if(! strlen($rr['name']))
1488                                                 continue;
1489
1490                                         // avoid duplicates
1491
1492                                         if(in_array($rr['cid'],$cids))
1493                                                 continue;
1494                                         $cids[] = $rr['cid'];
1495
1496                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1497                                         $sparkle = '';
1498                                         $url = $rr['url'];
1499                                         if($rr['network'] === NETWORK_DFRN) {
1500                                                 $sparkle = " sparkle";
1501                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1502                                         }
1503
1504                                         $rr['link'] = $url;
1505                                         $rr['title'] = $rr['name'];
1506                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1507                                         $rr['startime'] = Null;
1508                                         $rr['today'] = $today;
1509
1510                                 }
1511                         }
1512                 }
1513                 $tpl = get_markup_template("birthdays_reminder.tpl");
1514                 return replace_macros($tpl, array(
1515                         '$baseurl' => $a->get_baseurl(),
1516                         '$classtoday' => $classtoday,
1517                         '$count' => $total,
1518                         '$event_reminders' => t('Birthday Reminders'),
1519                         '$event_title' => t('Birthdays this week:'),
1520                         '$events' => $r,
1521                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1522                         '$rbr' => '}'
1523
1524                 ));
1525         }
1526 }
1527
1528
1529 if(! function_exists('get_events')) {
1530         function get_events() {
1531
1532                 require_once('include/bbcode.php');
1533
1534                 $a = get_app();
1535
1536                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1537                         return $o;
1538
1539
1540 //              $mobile_detect = new Mobile_Detect();
1541 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1542
1543 //              if($is_mobile)
1544 //                      return $o;
1545
1546                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1547                 $bd_short = t('F d');
1548
1549                 $r = q("SELECT `event`.* FROM `event`
1550                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1551                                 ORDER BY `start` ASC ",
1552                                 intval(local_user()),
1553                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1554                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1555                 );
1556
1557                 if($r && count($r)) {
1558                         $now = strtotime('now');
1559                         $istoday = false;
1560                         foreach($r as $rr) {
1561                                 if(strlen($rr['name']))
1562                                         $total ++;
1563
1564                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1565                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1566                                         $istoday = true;
1567                         }
1568                         $classtoday = (($istoday) ? 'event-today' : '');
1569
1570
1571                         foreach($r as &$rr) {
1572                                 if($rr['adjust'])
1573                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1574                                 else
1575                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1576                                 $md .= "/#link-".$rr['id'];
1577
1578                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1579                                 if(! $title)
1580                                         $title = t('[No description]');
1581
1582                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1583                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1584
1585                                 $rr['link'] = $md;
1586                                 $rr['title'] = $title;
1587                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1588                                 $rr['startime'] = $strt;
1589                                 $rr['today'] = $today;
1590                         }
1591                 }
1592
1593                 $tpl = get_markup_template("events_reminder.tpl");
1594                 return replace_macros($tpl, array(
1595                         '$baseurl' => $a->get_baseurl(),
1596                         '$classtoday' => $classtoday,
1597                         '$count' => count($r),
1598                         '$event_reminders' => t('Event Reminders'),
1599                         '$event_title' => t('Events this week:'),
1600                         '$events' => $r,
1601                 ));
1602         }
1603 }
1604
1605
1606 /**
1607  *
1608  * Wrap calls to proc_close(proc_open()) and call hook
1609  * so plugins can take part in process :)
1610  *
1611  * args:
1612  * $cmd program to run
1613  *  next args are passed as $cmd command line
1614  *
1615  * e.g.: proc_run("ls","-la","/tmp");
1616  *
1617  * $cmd and string args are surrounded with ""
1618  */
1619
1620 if(! function_exists('proc_run')) {
1621         function proc_run($cmd){
1622
1623                 $a = get_app();
1624
1625                 $args = func_get_args();
1626
1627                 $newargs = array();
1628                 if(! count($args))
1629                         return;
1630
1631                 // expand any arrays
1632
1633                 foreach($args as $arg) {
1634                         if(is_array($arg)) {
1635                                 foreach($arg as $n) {
1636                                         $newargs[] = $n;
1637                                 }
1638                         }
1639                         else
1640                                 $newargs[] = $arg;
1641                 }
1642
1643                 $args = $newargs;
1644
1645                 $arr = array('args' => $args, 'run_cmd' => true);
1646
1647                 call_hooks("proc_run", $arr);
1648                 if(! $arr['run_cmd'])
1649                         return;
1650
1651                 if(count($args) && $args[0] === 'php')
1652                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1653
1654         // add baseurl to args. cli scripts can't construct it
1655         $args[] = $a->get_baseurl();
1656
1657         for($x = 0; $x < count($args); $x ++)
1658                         $args[$x] = escapeshellarg($args[$x]);
1659
1660
1661
1662                 $cmdline = implode($args," ");
1663                 if(get_config('system','proc_windows'))
1664                         proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
1665                 else
1666                         proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
1667         }
1668 }
1669
1670 if(! function_exists('current_theme')) {
1671         function current_theme(){
1672                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1673
1674                 $a = get_app();
1675
1676 //              $mobile_detect = new Mobile_Detect();
1677 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1678                 $is_mobile = $a->is_mobile || $a->is_tablet;
1679
1680                 if($is_mobile) {
1681                         if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1682                                 $system_theme = '';
1683                                 $theme_name = '';
1684                         }
1685                         else {
1686                                 $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1687                                 $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1688
1689                                 if($theme_name === '---') {
1690                                         // user has selected to have the mobile theme be the same as the normal one
1691                                         $system_theme = '';
1692                                         $theme_name = '';
1693                                 }
1694                         }
1695                 }
1696                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1697                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1698                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1699                 }
1700
1701                 if($theme_name &&
1702                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1703                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1704                         return($theme_name);
1705
1706                 foreach($app_base_themes as $t) {
1707                         if(file_exists('view/theme/' . $t . '/style.css')||
1708                                         file_exists('view/theme/' . $t . '/style.php'))
1709                                 return($t);
1710                 }
1711
1712                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1713                 if(count($fallback))
1714                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1715
1716         }
1717 }
1718
1719 /*
1720  * Return full URL to theme which is currently in effect.
1721 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1722 */
1723 if(! function_exists('current_theme_url')) {
1724         function current_theme_url() {
1725                 global $a;
1726                 $t = current_theme();
1727                 if (file_exists('view/theme/' . $t . '/style.php'))
1728                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1729                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1730         }
1731 }
1732
1733 if(! function_exists('feed_birthday')) {
1734         function feed_birthday($uid,$tz) {
1735
1736                 /**
1737                  *
1738                  * Determine the next birthday, but only if the birthday is published
1739                  * in the default profile. We _could_ also look for a private profile that the
1740                  * recipient can see, but somebody could get mad at us if they start getting
1741                  * public birthday greetings when they haven't made this info public.
1742                  *
1743                  * Assuming we are able to publish this info, we are then going to convert
1744                  * the start time from the owner's timezone to UTC.
1745                  *
1746                  * This will potentially solve the problem found with some social networks
1747                  * where birthdays are converted to the viewer's timezone and salutations from
1748                  * elsewhere in the world show up on the wrong day. We will convert it to the
1749                  * viewer's timezone also, but first we are going to convert it from the birthday
1750                  * person's timezone to GMT - so the viewer may find the birthday starting at
1751                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1752                  *
1753                  */
1754
1755
1756                 $birthday = '';
1757
1758                 if(! strlen($tz))
1759                         $tz = 'UTC';
1760
1761                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1762                                 intval($uid)
1763                 );
1764
1765                 if($p && count($p)) {
1766                         $tmp_dob = substr($p[0]['dob'],5);
1767                         if(intval($tmp_dob)) {
1768                                 $y = datetime_convert($tz,$tz,'now','Y');
1769                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1770                                 $t_dob = strtotime($bd);
1771                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1772                                 if($t_dob < $now)
1773                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1774                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
1775                         }
1776                 }
1777
1778                 return $birthday;
1779         }
1780 }
1781
1782 if(! function_exists('is_site_admin')) {
1783         function is_site_admin() {
1784                 $a = get_app();
1785                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1786                         return true;
1787                 return false;
1788         }
1789 }
1790
1791
1792 if(! function_exists('load_contact_links')) {
1793         function load_contact_links($uid) {
1794
1795                 $a = get_app();
1796
1797                 $ret = array();
1798
1799                 if(! $uid || x($a->contacts,'empty'))
1800                         return;
1801
1802                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
1803                                 intval($uid)
1804                 );
1805                 if(count($r)) {
1806                         foreach($r as $rr){
1807                                 $url = normalise_link($rr['url']);
1808                                 $ret[$url] = $rr;
1809                         }
1810                 }
1811                 else
1812                         $ret['empty'] = true;
1813                 $a->contacts = $ret;
1814                 return;
1815         }
1816 }
1817
1818 if(! function_exists('profile_tabs')){
1819         function profile_tabs($a, $is_owner=False, $nickname=Null){
1820                 //echo "<pre>"; var_dump($a->user); killme();
1821
1822                 if (is_null($nickname))
1823                         $nickname  = $a->user['nickname'];
1824
1825                 if(x($_GET,'tab'))
1826                         $tab = notags(trim($_GET['tab']));
1827
1828                 $url = $a->get_baseurl() . '/profile/' . $nickname;
1829
1830                 $tabs = array(
1831                         array(
1832                                 'label'=>t('Status'),
1833                                 'url' => $url,
1834                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
1835                                 'title' => t('Status Messages and Posts'),
1836                                 'id' => 'status-tab',
1837                         ),
1838                         array(
1839                                 'label' => t('Profile'),
1840                                 'url'   => $url.'/?tab=profile',
1841                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
1842                                 'title' => t('Profile Details'),
1843                                 'id' => 'profile-tab',
1844                         ),
1845                         array(
1846                                 'label' => t('Photos'),
1847                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
1848                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
1849                                 'title' => t('Photo Albums'),
1850                                 'id' => 'photo-tab',
1851                         ),
1852                 );
1853
1854                 if ($is_owner){
1855                         $tabs[] = array(
1856                                 'label' => t('Events'),
1857                                 'url'   => $a->get_baseurl() . '/events',
1858                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
1859                                 'title' => t('Events and Calendar'),
1860                                 'id' => 'events-tab',
1861                         );
1862                         $tabs[] = array(
1863                                 'label' => t('Personal Notes'),
1864                                 'url'   => $a->get_baseurl() . '/notes',
1865                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
1866                                 'title' => t('Only You Can See This'),
1867                                 'id' => 'notes-tab',
1868                         );
1869                 }
1870
1871
1872                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
1873                 call_hooks('profile_tabs', $arr);
1874
1875                 $tpl = get_markup_template('common_tabs.tpl');
1876
1877                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
1878         }
1879 }
1880
1881 function get_my_url() {
1882         if(x($_SESSION,'my_url'))
1883                 return $_SESSION['my_url'];
1884         return false;
1885 }
1886
1887 function zrl_init(&$a) {
1888         $tmp_str = get_my_url();
1889         if(validate_url($tmp_str)) {
1890                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
1891                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
1892                 call_hooks('zrl_init',$arr);
1893         }
1894 }
1895
1896 function zrl($s,$force = false) {
1897         if(! strlen($s))
1898                 return $s;
1899         if((! strpos($s,'/profile/')) && (! $force))
1900                 return $s;
1901         if($force && substr($s,-1,1) !== '/')
1902                 $s = $s . '/';
1903         $achar = strpos($s,'?') ? '&' : '?';
1904         $mine = get_my_url();
1905         if($mine and ! link_compare($mine,$s))
1906                 return $s . $achar . 'zrl=' . urlencode($mine);
1907         return $s;
1908 }
1909
1910 /**
1911 * returns querystring as string from a mapped array
1912 *
1913 * @param params Array
1914 * @return string
1915 */
1916 function build_querystring($params, $name=null) {
1917     $ret = "";
1918     foreach($params as $key=>$val) {
1919         if(is_array($val)) {
1920             if($name==null) {
1921                 $ret .= build_querystring($val, $key);
1922             } else {
1923                 $ret .= build_querystring($val, $name."[$key]");
1924             }
1925         } else {
1926             $val = urlencode($val);
1927             if($name!=null) {
1928                 $ret.=$name."[$key]"."=$val&";
1929             } else {
1930                 $ret.= "$key=$val&";
1931             }
1932         }
1933     }
1934     return $ret;
1935 }
1936
1937 /**
1938 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
1939 *
1940 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
1941 */
1942 function curPageURL() {
1943         $pageURL = 'http';
1944         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
1945         $pageURL .= "://";
1946         if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
1947                 $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
1948         } else {
1949                 $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
1950         }
1951         return $pageURL;
1952 }
1953
1954 function random_digits($digits) {
1955         $rn = '';
1956         for($i = 0; $i < $digits; $i++) {
1957                 $rn .= rand(0,9);
1958         }
1959         return $rn;
1960 }
1961
1962 function get_cachefile($file, $writemode = true) {
1963         $cache = get_config("system","itemcache");
1964
1965         if ($cache == "")
1966                 return("");
1967
1968         if (!is_dir($cache))
1969                 return("");
1970
1971         $subfolder = $cache."/".substr($file, 0, 2);
1972
1973         $cachepath = $subfolder."/".$file;
1974
1975         if ($writemode) {
1976                 if (!is_dir($subfolder)) {
1977                         mkdir($subfolder);
1978                         chmod($subfolder, 0777);
1979                 }
1980         }
1981
1982         return($cachepath);
1983 }
1984
1985 function clear_cache($basepath = "", $path = "") {
1986         if ($path == "") {
1987                 $basepath = get_config('system','itemcache');
1988                 $path = $basepath;
1989         }
1990
1991         if (($path == "") OR (!is_dir($path)))
1992                 return;
1993
1994         if (substr(realpath($path), 0, strlen($basepath)) != $basepath)
1995                 return;
1996
1997         $cachetime = (int)get_config('system','itemcache_duration');
1998         if ($cachetime == 0)
1999                 $cachetime = 86400;
2000
2001         if ($dh = opendir($path)) {
2002                 while (($file = readdir($dh)) !== false) {
2003                         $fullpath = $path."/".$file;
2004                         if ((filetype($fullpath) == "dir") and ($file != ".") and ($file != ".."))
2005                                 clear_cache($basepath, $fullpath);
2006                         if ((filetype($fullpath) == "file") and (filectime($fullpath) < (time() - $cachetime)))
2007                                 unlink($fullpath);
2008                 }
2009                 closedir($dh);
2010         }
2011 }
2012
2013 function set_template_engine(&$a, $engine = 'internal') {
2014 // This function is no longer necessary, but keep it as a wrapper to the class method
2015 // to avoid breaking themes again unnecessarily
2016
2017         $a->set_template_engine($engine);
2018 }
2019