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',      '3.1.1677' );
  16 define ( 'DFRN_PROTOCOL_VERSION',  '2.23'    );
  17 define ( 'DB_UPDATE_VERSION',      1163      );
  18 define ( 'EOL',                    "<br />\r\n"     );
  19 define ( 'ATOM_TIME',              'Y-m-d\TH:i:s\Z' );
  20
  21
  22 /**
  23  *
  24  * Image storage quality. Lower numbers save space at cost of image detail.
  25  * For ease of upgrade, please do not change here. Change jpeg quality with
  26  * $a->config['system']['jpeg_quality'] = n;
  27  * in .htconfig.php, where n is netween 1 and 100, and with very poor results
  28  * below about 50
  29  *
  30  */
  31
  32 define ( 'JPEG_QUALITY',            100  );
  33 /**
  34  * $a->config['system']['png_quality'] from 0 (uncompressed) to 9
  35  */
  36 define ( 'PNG_QUALITY',             8  );
  37
  38 /**
  39  *
  40  * An alternate way of limiting picture upload sizes. Specify the maximum pixel
  41  * length that pictures are allowed to be (for non-square pictures, it will apply
  42  * to the longest side). Pictures longer than this length will be resized to be
  43  * this length (on the longest side, the other side will be scaled appropriately).
  44  * Modify this value using
  45  *
  46  *    $a->config['system']['max_image_length'] = n;
  47  *
  48  * in .htconfig.php
  49  *
  50  * If you don't want to set a maximum length, set to -1. The default value is
  51  * defined by 'MAX_IMAGE_LENGTH' below.
  52  *
  53  */
  54 define ( 'MAX_IMAGE_LENGTH',        -1  );
  55
  56
  57 /**
  58  * Not yet used
  59  */
  60
  61 define ( 'DEFAULT_DB_ENGINE',  'MyISAM'  );
  62
  63 /**
  64  * SSL redirection policies
  65  */
  66
  67 define ( 'SSL_POLICY_NONE',         0 );
  68 define ( 'SSL_POLICY_FULL',         1 );
  69 define ( 'SSL_POLICY_SELFSIGN',     2 );
  70
  71
  72 /**
  73  * log levels
  74  */
  75
  76 define ( 'LOGGER_NORMAL',          0 );
  77 define ( 'LOGGER_TRACE',           1 );
  78 define ( 'LOGGER_DEBUG',           2 );
  79 define ( 'LOGGER_DATA',            3 );
  80 define ( 'LOGGER_ALL',             4 );
  81
  82 /**
  83  * registration policies
  84  */
  85
  86 define ( 'REGISTER_CLOSED',        0 );
  87 define ( 'REGISTER_APPROVE',       1 );
  88 define ( 'REGISTER_OPEN',          2 );
  89
  90 /**
  91  * relationship types
  92  */
  93
  94 define ( 'CONTACT_IS_FOLLOWER', 1);
  95 define ( 'CONTACT_IS_SHARING',  2);
  96 define ( 'CONTACT_IS_FRIEND',   3);
  97
  98
  99 /**
 100  * DB update return values
 101  */
 102
 103 define ( 'UPDATE_SUCCESS', 0);
 104 define ( 'UPDATE_FAILED',  1);
 105
 106
 107 /**
 108  *
 109  * page/profile types
 110  *
 111  * PAGE_NORMAL is a typical personal profile account
 112  * PAGE_SOAPBOX automatically approves all friend requests as CONTACT_IS_SHARING, (readonly)
 113  * PAGE_COMMUNITY automatically approves all friend requests as CONTACT_IS_SHARING, but with
 114  *      write access to wall and comments (no email and not included in page owner's ACL lists)
 115  * PAGE_FREELOVE automatically approves all friend requests as full friends (CONTACT_IS_FRIEND).
 116  *
 117  */
 118
 119 define ( 'PAGE_NORMAL',            0 );
 120 define ( 'PAGE_SOAPBOX',           1 );
 121 define ( 'PAGE_COMMUNITY',         2 );
 122 define ( 'PAGE_FREELOVE',          3 );
 123 define ( 'PAGE_BLOG',              4 );
 124 define ( 'PAGE_PRVGROUP',          5 );
 125
 126 /**
 127  * Network and protocol family types
 128  */
 129
 130 define ( 'NETWORK_DFRN',             'dfrn');    // Friendica, Mistpark, other DFRN implementations
 131 define ( 'NETWORK_ZOT',              'zot!');    // Zot!
 132 define ( 'NETWORK_OSTATUS',          'stat');    // status.net, identi.ca, GNU-social, other OStatus implementations
 133 define ( 'NETWORK_FEED',             'feed');    // RSS/Atom feeds with no known "post/notify" protocol
 134 define ( 'NETWORK_DIASPORA',         'dspr');    // Diaspora
 135 define ( 'NETWORK_MAIL',             'mail');    // IMAP/POP
 136 define ( 'NETWORK_MAIL2',            'mai2');    // extended IMAP/POP
 137 define ( 'NETWORK_FACEBOOK',         'face');    // Facebook API
 138 define ( 'NETWORK_LINKEDIN',         'lnkd');    // LinkedIn
 139 define ( 'NETWORK_XMPP',             'xmpp');    // XMPP
 140 define ( 'NETWORK_MYSPACE',          'mysp');    // MySpace
 141 define ( 'NETWORK_GPLUS',            'goog');    // Google+
 142
 143 define ( 'NETWORK_PHANTOM',          'unkn');    // Place holder
 144
 145 /**
 146  * These numbers are used in stored permissions
 147  * and existing allocations MUST NEVER BE CHANGED
 148  * OR RE-ASSIGNED! You may only add to them.
 149  */
 150
 151 $netgroup_ids = array(
 152         NETWORK_DFRN     => (-1),
 153         NETWORK_ZOT      => (-2),
 154         NETWORK_OSTATUS  => (-3),
 155         NETWORK_FEED     => (-4),
 156         NETWORK_DIASPORA => (-5),
 157         NETWORK_MAIL     => (-6),
 158         NETWORK_MAIL2    => (-7),
 159         NETWORK_FACEBOOK => (-8),
 160         NETWORK_LINKEDIN => (-9),
 161         NETWORK_XMPP     => (-10),
 162         NETWORK_MYSPACE  => (-11),
 163         NETWORK_GPLUS    => (-12),
 164
 165         NETWORK_PHANTOM  => (-127),
 166 );
 167
 168
 169 /**
 170  * Maximum number of "people who like (or don't like) this"  that we will list by name
 171  */
 172
 173 define ( 'MAX_LIKERS',    75);
 174
 175 /**
 176  * Communication timeout
 177  */
 178
 179 define ( 'ZCURL_TIMEOUT' , (-1));
 180
 181
 182 /**
 183  * email notification options
 184  */
 185
 186 define ( 'NOTIFY_INTRO',    0x0001 );
 187 define ( 'NOTIFY_CONFIRM',  0x0002 );
 188 define ( 'NOTIFY_WALL',     0x0004 );
 189 define ( 'NOTIFY_COMMENT',  0x0008 );
 190 define ( 'NOTIFY_MAIL',     0x0010 );
 191 define ( 'NOTIFY_SUGGEST',  0x0020 );
 192 define ( 'NOTIFY_PROFILE',  0x0040 );
 193 define ( 'NOTIFY_TAGSELF',  0x0080 );
 194 define ( 'NOTIFY_TAGSHARE', 0x0100 );
 195 define ( 'NOTIFY_POKE',     0x0200 );
 196
 197 define ( 'NOTIFY_SYSTEM',   0x8000 );
 198
 199
 200 /**
 201  * Tag/term types
 202  */
 203
 204 define ( 'TERM_UNKNOWN',   0 );
 205 define ( 'TERM_HASHTAG',   1 );
 206 define ( 'TERM_MENTION',   2 );
 207 define ( 'TERM_CATEGORY',  3 );
 208 define ( 'TERM_PCATEGORY', 4 );
 209 define ( 'TERM_FILE',      5 );
 210 define ( 'TERM_SAVEDSEARCH', 6 );
 211 define ( 'TERM_CONVERSATION', 7 );
 212
 213 define ( 'TERM_OBJ_POST',  1 );
 214 define ( 'TERM_OBJ_PHOTO', 2 );
 215
 216
 217
 218 /**
 219  * various namespaces we may need to parse
 220  */
 221
 222 define ( 'NAMESPACE_ZOT',             'http://purl.org/zot' );
 223 define ( 'NAMESPACE_DFRN' ,           'http://purl.org/macgirvin/dfrn/1.0' );
 224 define ( 'NAMESPACE_THREAD' ,         'http://purl.org/syndication/thread/1.0' );
 225 define ( 'NAMESPACE_TOMB' ,           'http://purl.org/atompub/tombstones/1.0' );
 226 define ( 'NAMESPACE_ACTIVITY',        'http://activitystrea.ms/spec/1.0/' );
 227 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
 228 define ( 'NAMESPACE_MEDIA',           'http://purl.org/syndication/atommedia' );
 229 define ( 'NAMESPACE_SALMON_ME',       'http://salmon-protocol.org/ns/magic-env' );
 230 define ( 'NAMESPACE_OSTATUSSUB',      'http://ostatus.org/schema/1.0/subscribe' );
 231 define ( 'NAMESPACE_GEORSS',          'http://www.georss.org/georss' );
 232 define ( 'NAMESPACE_POCO',            'http://portablecontacts.net/spec/1.0' );
 233 define ( 'NAMESPACE_FEED',            'http://schemas.google.com/g/2010#updates-from' );
 234 define ( 'NAMESPACE_OSTATUS',         'http://ostatus.org/schema/1.0' );
 235 define ( 'NAMESPACE_STATUSNET',       'http://status.net/schema/api/1/' );
 236 define ( 'NAMESPACE_ATOM1',           'http://www.w3.org/2005/Atom' );
 237 /**
 238  * activity stream defines
 239  */
 240
 241 define ( 'ACTIVITY_LIKE',        NAMESPACE_ACTIVITY_SCHEMA . 'like' );
 242 define ( 'ACTIVITY_DISLIKE',     NAMESPACE_DFRN            . '/dislike' );
 243 define ( 'ACTIVITY_OBJ_HEART',   NAMESPACE_DFRN            . '/heart' );
 244
 245 define ( 'ACTIVITY_FRIEND',      NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
 246 define ( 'ACTIVITY_REQ_FRIEND',  NAMESPACE_ACTIVITY_SCHEMA . 'request-friend' );
 247 define ( 'ACTIVITY_UNFRIEND',    NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend' );
 248 define ( 'ACTIVITY_FOLLOW',      NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
 249 define ( 'ACTIVITY_UNFOLLOW',    NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
 250 define ( 'ACTIVITY_JOIN',        NAMESPACE_ACTIVITY_SCHEMA . 'join' );
 251
 252 define ( 'ACTIVITY_POST',        NAMESPACE_ACTIVITY_SCHEMA . 'post' );
 253 define ( 'ACTIVITY_UPDATE',      NAMESPACE_ACTIVITY_SCHEMA . 'update' );
 254 define ( 'ACTIVITY_TAG',         NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
 255 define ( 'ACTIVITY_FAVORITE',    NAMESPACE_ACTIVITY_SCHEMA . 'favorite' );
 256
 257 define ( 'ACTIVITY_POKE',        NAMESPACE_ZOT . '/activity/poke' );
 258 define ( 'ACTIVITY_MOOD',        NAMESPACE_ZOT . '/activity/mood' );
 259
 260 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
 261 define ( 'ACTIVITY_OBJ_NOTE',    NAMESPACE_ACTIVITY_SCHEMA . 'note' );
 262 define ( 'ACTIVITY_OBJ_PERSON',  NAMESPACE_ACTIVITY_SCHEMA . 'person' );
 263 define ( 'ACTIVITY_OBJ_PHOTO',   NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
 264 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
 265 define ( 'ACTIVITY_OBJ_ALBUM',   NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
 266 define ( 'ACTIVITY_OBJ_EVENT',   NAMESPACE_ACTIVITY_SCHEMA . 'event' );
 267 define ( 'ACTIVITY_OBJ_GROUP',   NAMESPACE_ACTIVITY_SCHEMA . 'group' );
 268 define ( 'ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN            . '/tagterm' );
 269 define ( 'ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN            . '/profile' );
 270
 271 /**
 272  * item weight for query ordering
 273  */
 274
 275 define ( 'GRAVITY_PARENT',       0);
 276 define ( 'GRAVITY_LIKE',         3);
 277 define ( 'GRAVITY_COMMENT',      6);
 278
 279 /**
 280  *
 281  * Reverse the effect of magic_quotes_gpc if it is enabled.
 282  * Please disable magic_quotes_gpc so we don't have to do this.
 283  * See http://php.net/manual/en/security.magicquotes.disabling.php
 284  *
 285  */
 286
 287 function startup() {
 288
 289         error_reporting(E_ERROR | E_WARNING | E_PARSE);
 290
 291         set_time_limit(0);
 292
 293         // This has to be quite large to deal with embedded private photos
 294         ini_set('pcre.backtrack_limit', 500000);
 295
 296
 297         if (get_magic_quotes_gpc()) {
 298                 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
 299                 while (list($key, $val) = each($process)) {
 300                         foreach ($val as $k => $v) {
 301                                 unset($process[$key][$k]);
 302                                 if (is_array($v)) {
 303                                         $process[$key][stripslashes($k)] = $v;
 304                                         $process[] = &$process[$key][stripslashes($k)];
 305                                 } else {
 306                                         $process[$key][stripslashes($k)] = stripslashes($v);
 307                                 }
 308                         }
 309                 }
 310                 unset($process);
 311         }
 312
 313 }
 314
 315 /**
 316  *
 317  * class: App
 318  *
 319  * Our main application structure for the life of this page
 320  * Primarily deals with the URL that got us here
 321  * and tries to make some sense of it, and
 322  * stores our page contents and config storage
 323  * and anything else that might need to be passed around
 324  * before we spit the page out.
 325  *
 326  */
 327
 328 if(! class_exists('App')) {
 329         class App {
 330
 331                 public  $module_loaded = false;
 332                 public  $query_string;
 333                 public  $config;
 334                 public  $page;
 335                 public  $profile;
 336                 public  $user;
 337                 public  $cid;
 338                 public  $contact;
 339                 public  $contacts;
 340                 public  $page_contact;
 341                 public  $content;
 342                 public  $data = array();
 343                 public  $error = false;
 344                 public  $cmd;
 345                 public  $argv;
 346                 public  $argc;
 347                 public  $module;
 348                 public  $pager;
 349                 public  $strings;
 350                 public  $path;
 351                 public  $hooks;
 352                 public  $timezone;
 353                 public  $interactive = true;
 354                 public  $plugins;
 355                 public  $apps = array();
 356                 public  $identities;
 357                 public  $is_mobile;
 358                 public  $is_tablet;
 359                 public  $performance = array();
 360
 361                 public $nav_sel;
 362
 363                 public $category;
 364
 365
 366                 // Allow themes to control internal parameters
 367                 // by changing App values in theme.php
 368
 369                 public  $sourcename = '';
 370                 public  $videowidth = 425;
 371                 public  $videoheight = 350;
 372                 public  $force_max_items = 0;
 373                 public  $theme_thread_allow = true;
 374
 375                 // An array for all theme-controllable parameters
 376                 // Mostly unimplemented yet. Only options 'stylesheet' and
 377                 // beyond are used.
 378
 379                 public  $theme = array(
 380                         'sourcename' => '',
 381                         'videowidth' => 425,
 382                         'videoheight' => 350,
 383                         'force_max_items' => 0,
 384                         'thread_allow' => true,
 385                         'stylesheet' => '',
 386                         'template_engine' => 'internal',
 387                 );
 388
 389                 private $ldelim = array(
 390                         'internal' => '',
 391                         'smarty3' => '{{'
 392                 );
 393                 private $rdelim = array(
 394                         'internal' => '',
 395                         'smarty3' => '}}'
 396                 );
 397
 398                 private $scheme;
 399                 private $hostname;
 400                 private $baseurl;
 401                 private $db;
 402
 403                 private $curl_code;
 404                 private $curl_content_type;
 405                 private $curl_headers;
 406
 407                 private $cached_profile_image;
 408                 private $cached_profile_picdate;
 409
 410                 function __construct() {
 411
 412                         global $default_timezone, $argv, $argc;
 413
 414                         $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
 415
 416                         date_default_timezone_set($this->timezone);
 417
 418                         $this->performance["start"] = microtime(true);
 419                         $this->performance["database"] = 0;
 420                         $this->performance["network"] = 0;
 421                         $this->performance["rendering"] = 0;
 422                         $this->performance["parser"] = 0;
 423                         $this->performance["marktime"] = 0;
 424                         $this->performance["markstart"] = microtime(true);
 425
 426                         $this->config = array();
 427                         $this->page = array();
 428                         $this->pager= array();
 429
 430                         $this->query_string = '';
 431
 432                         startup();
 433
 434                         $this->scheme = 'http';
 435                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
 436                                 $this->scheme = 'https';
 437                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
 438                         $this->scheme = 'https';
 439
 440                         if(x($_SERVER,'SERVER_NAME')) {
 441                                 $this->hostname = $_SERVER['SERVER_NAME'];
 442
 443                                 // See bug 437 - this didn't work so disabling it
 444                                 //if(stristr($this->hostname,'xn--')) {
 445                                         // PHP or webserver may have converted idn to punycode, so
 446                                         // convert punycode back to utf-8
 447                                 //      require_once('library/simplepie/idn/idna_convert.class.php');
 448                                 //      $x = new idna_convert();
 449                                 //      $this->hostname = $x->decode($_SERVER['SERVER_NAME']);
 450                                 //}
 451
 452                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
 453                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
 454                                 /**
 455                                  * Figure out if we are running at the top of a domain
 456                                  * or in a sub-directory and adjust accordingly
 457                                  */
 458
 459                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
 460                                 if(isset($path) && strlen($path) && ($path != $this->path))
 461                                         $this->path = $path;
 462                         }
 463                         if (is_array($argv) && $argc>1 && substr(end($argv), 0, 4)=="http" ) {
 464                                 $this->set_baseurl(array_pop($argv) );
 465                                 $argc --;
 466                         }
 467
 468                         set_include_path(
 469                                         "include/$this->hostname" . PATH_SEPARATOR
 470                                         . 'include' . PATH_SEPARATOR
 471                                         . 'library' . PATH_SEPARATOR
 472                                         . 'library/phpsec' . PATH_SEPARATOR
 473                                         . 'library/langdet' . PATH_SEPARATOR
 474                                         . '.' );
 475
 476
 477                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
 478                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
 479                                 // removing trailing / - maybe a nginx problem
 480                                 if (substr($this->query_string, 0, 1) == "/")
 481                                         $this->query_string = substr($this->query_string, 1);
 482                         }
 483                         if(x($_GET,'q'))
 484                                 $this->cmd = trim($_GET['q'],'/\\');
 485
 486                         // unix style "homedir"
 487
 488                         if(substr($this->cmd,0,1) === '~')
 489                                 $this->cmd = 'profile/' . substr($this->cmd,1);
 490
 491                         // Diaspora style profile url
 492
 493                         if(substr($this->cmd,0,2) === 'u/')
 494                                 $this->cmd = 'profile/' . substr($this->cmd,2);
 495
 496                         /**
 497                          *
 498                          * Break the URL path into C style argc/argv style arguments for our
 499                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
 500                          * will be 3 (integer) and $this->argv will contain:
 501                          *   [0] => 'module'
 502                          *   [1] => 'arg1'
 503                          *   [2] => 'arg2'
 504                          *
 505                          *
 506                          * There will always be one argument. If provided a naked domain
 507                          * URL, $this->argv[0] is set to "home".
 508                          *
 509                          */
 510
 511                         $this->argv = explode('/',$this->cmd);
 512                         $this->argc = count($this->argv);
 513                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
 514                                 $this->module = str_replace(".", "_", $this->argv[0]);
 515                                 $this->module = str_replace("-", "_", $this->module);
 516                         }
 517                         else {
 518                                 $this->argc = 1;
 519                                 $this->argv = array('home');
 520                                 $this->module = 'home';
 521                         }
 522
 523                         /**
 524                          * See if there is any page number information, and initialise
 525                          * pagination
 526                          */
 527
 528                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
 529                         $this->pager['itemspage'] = 50;
 530                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 531                         if($this->pager['start'] < 0)
 532                                 $this->pager['start'] = 0;
 533                         $this->pager['total'] = 0;
 534
 535                         /**
 536                          * Detect mobile devices
 537                          */
 538
 539                         $mobile_detect = new Mobile_Detect();
 540                         $this->is_mobile = $mobile_detect->isMobile();
 541                         $this->is_tablet = $mobile_detect->isTablet();
 542                 }
 543
 544                 function get_basepath() {
 545
 546                         $basepath = get_config("system", "basepath");
 547
 548                         if ($basepath == "")
 549                                 $basepath = $_SERVER["DOCUMENT_ROOT"];
 550
 551                         if ($basepath == "")
 552                                 $basepath = $_SERVER["PWD"];
 553
 554                         return($basepath);
 555                 }
 556
 557                 function get_baseurl($ssl = false) {
 558
 559                         $scheme = $this->scheme;
 560
 561                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
 562                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
 563                                         $scheme = 'https';
 564
 565                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
 566                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
 567
 568                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
 569                                         if($ssl)
 570                                                 $scheme = 'https';
 571                                         else
 572                                                 $scheme = 'http';
 573                                 }
 574                         }
 575
 576                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
 577                         return $this->baseurl;
 578                 }
 579
 580                 function set_baseurl($url) {
 581                         $parsed = @parse_url($url);
 582
 583                         $this->baseurl = $url;
 584
 585                         if($parsed) {
 586                                 $this->scheme = $parsed['scheme'];
 587
 588                                 $this->hostname = $parsed['host'];
 589                                 if(x($parsed,'port'))
 590                                         $this->hostname .= ':' . $parsed['port'];
 591                                 if(x($parsed,'path'))
 592                                         $this->path = trim($parsed['path'],'\\/');
 593                         }
 594
 595                 }
 596
 597                 function get_hostname() {
 598                         return $this->hostname;
 599                 }
 600
 601                 function set_hostname($h) {
 602                         $this->hostname = $h;
 603                 }
 604
 605                 function set_path($p) {
 606                         $this->path = trim(trim($p),'/');
 607                 }
 608
 609                 function get_path() {
 610                         return $this->path;
 611                 }
 612
 613                 function set_pager_total($n) {
 614                         $this->pager['total'] = intval($n);
 615                 }
 616
 617                 function set_pager_itemspage($n) {
 618                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
 619                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 620
 621                 }
 622
 623                 function init_pagehead() {
 624                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
 625                         if($interval < 10000)
 626                                 $interval = 40000;
 627
 628                         $this->page['title'] = $this->config['sitename'];
 629
 630                         /* put the head template at the beginning of page['htmlhead']
 631                          * since the code added by the modules frequently depends on it
 632                          * being first
 633                          */
 634                         if(!isset($this->page['htmlhead']))
 635                                 $this->page['htmlhead'] = '';
 636
 637                         // If we're using Smarty, then doing replace_macros() will replace
 638                         // any unrecognized variables with a blank string. Since we delay
 639                         // replacing $stylesheet until later, we need to replace it now
 640                         // with another variable name
 641                         if($this->theme['template_engine'] === 'smarty3')
 642                                 $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
 643                         else
 644                                 $stylesheet = '$stylesheet';
 645
 646                         $tpl = get_markup_template('head.tpl');
 647                         $this->page['htmlhead'] = replace_macros($tpl,array(
 648                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
 649                                 '$local_user' => local_user(),
 650                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
 651                                 '$delitem' => t('Delete this item?'),
 652                                 '$comment' => t('Comment'),
 653                                 '$showmore' => t('show more'),
 654                                 '$showfewer' => t('show fewer'),
 655                                 '$update_interval' => $interval,
 656                                 '$stylesheet' => $stylesheet
 657                         )) . $this->page['htmlhead'];
 658                 }
 659
 660                 function init_page_end() {
 661                         if(!isset($this->page['end']))
 662                                 $this->page['end'] = '';
 663                         $tpl = get_markup_template('end.tpl');
 664                         $this->page['end'] = replace_macros($tpl,array(
 665                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
 666                         )) . $this->page['end'];
 667                 }
 668
 669                 function set_curl_code($code) {
 670                         $this->curl_code = $code;
 671                 }
 672
 673                 function get_curl_code() {
 674                         return $this->curl_code;
 675                 }
 676
 677                 function set_curl_content_type($content_type) {
 678                         $this->curl_content_type = $content_type;
 679                 }
 680
 681                 function get_curl_content_type() {
 682                         return $this->curl_content_type;
 683                 }
 684
 685                 function set_curl_headers($headers) {
 686                         $this->curl_headers = $headers;
 687                 }
 688
 689                 function get_curl_headers() {
 690                         return $this->curl_headers;
 691                 }
 692
 693                 function get_cached_avatar_image($avatar_image){
 694                         if($this->cached_profile_image[$avatar_image])
 695                                 return $this->cached_profile_image[$avatar_image];
 696
 697                         $path_parts = explode("/",$avatar_image);
 698                         $common_filename = $path_parts[count($path_parts)-1];
 699
 700                         if($this->cached_profile_picdate[$common_filename]){
 701                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 702                         } else {
 703                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like \"%%/%s\"",
 704                                         $common_filename);
 705                                 if(! count($r)){
 706                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
 707                                 } else {
 708                                         $this->cached_profile_picdate[$common_filename] = "?rev=" . urlencode($r[0]['picdate']);
 709                                         $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 710                                 }
 711                         }
 712                         return $this->cached_profile_image[$avatar_image];
 713                 }
 714
 715                 function get_template_engine() {
 716                         return $this->theme['template_engine'];
 717                 }
 718
 719                 function set_template_engine($engine = 'internal') {
 720
 721                         $this->theme['template_engine'] = 'internal';
 722
 723                         switch($engine) {
 724                                 case 'smarty3':
 725                                         if(is_writable('view/smarty3/'))
 726                                                 $this->theme['template_engine'] = 'smarty3';
 727                                         break;
 728                                 default:
 729                                         break;
 730                         }
 731                 }
 732
 733                 function get_template_ldelim($engine = 'internal') {
 734                         return $this->ldelim[$engine];
 735                 }
 736
 737                 function get_template_rdelim($engine = 'internal') {
 738                         return $this->rdelim[$engine];
 739                 }
 740
 741                 function save_timestamp($stamp, $value) {
 742                         $duration = (float)(microtime(true)-$stamp);
 743
 744                         $this->performance[$value] += (float)$duration;
 745                         $this->performance["marktime"] += (float)$duration;
 746                 }
 747
 748                 function mark_timestamp($mark) {
 749                         //$this->performance["markstart"] -= microtime(true) - $this->performance["marktime"];
 750                         $this->performance["markstart"] = microtime(true) - $this->performance["markstart"] - $this->performance["marktime"];
 751                 }
 752         }
 753 }
 754
 755 // retrieve the App structure
 756 // useful in functions which require it but don't get it passed to them
 757
 758 if(! function_exists('get_app')) {
 759         function get_app() {
 760                 global $a;
 761                 return $a;
 762         }
 763 };
 764
 765
 766 // Multi-purpose function to check variable state.
 767 // Usage: x($var) or $x($array,'key')
 768 // returns false if variable/key is not set
 769 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
 770 // e.g. x('') or x(0) returns 0;
 771
 772 if(! function_exists('x')) {
 773         function x($s,$k = NULL) {
 774                 if($k != NULL) {
 775                         if((is_array($s)) && (array_key_exists($k,$s))) {
 776                                 if($s[$k])
 777                                         return (int) 1;
 778                                 return (int) 0;
 779                 }
 780                         return false;
 781                 }
 782                 else {
 783                         if(isset($s)) {
 784                                 if($s) {
 785                                         return (int) 1;
 786                                 }
 787                                 return (int) 0;
 788                         }
 789                         return false;
 790                 }
 791         }
 792 }
 793
 794 // called from db initialisation if db is dead.
 795
 796 if(! function_exists('system_unavailable')) {
 797         function system_unavailable() {
 798                 include('system_unavailable.php');
 799                 system_down();
 800                 killme();
 801         }
 802 }
 803
 804
 805
 806 function clean_urls() {
 807         global $a;
 808         //      if($a->config['system']['clean_urls'])
 809         return true;
 810         //      return false;
 811 }
 812
 813 function z_path() {
 814         global $a;
 815         $base = $a->get_baseurl();
 816         if(! clean_urls())
 817                 $base .= '/?q=';
 818         return $base;
 819 }
 820
 821 function z_root() {
 822         global $a;
 823         return $a->get_baseurl();
 824 }
 825
 826 function absurl($path) {
 827         if(strpos($path,'/') === 0)
 828                 return z_path() . $path;
 829         return $path;
 830 }
 831
 832 function is_ajax() {
 833         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
 834 }
 835
 836 function check_db() {
 837
 838         $build = get_config('system','build');
 839         if(! x($build)) {
 840                 set_config('system','build',DB_UPDATE_VERSION);
 841                 $build = DB_UPDATE_VERSION;
 842         }
 843         if($build != DB_UPDATE_VERSION)
 844                 proc_run('php', 'include/dbupdate.php');
 845
 846 }
 847
 848
 849
 850
 851 // Sets the base url for use in cmdline programs which don't have
 852 // $_SERVER variables
 853
 854 if(! function_exists('check_url')) {
 855         function check_url(&$a) {
 856
 857                 $url = get_config('system','url');
 858
 859                 // if the url isn't set or the stored url is radically different
 860                 // than the currently visited url, store the current value accordingly.
 861                 // "Radically different" ignores common variations such as http vs https
 862                 // and www.example.com vs example.com.
 863                 // We will only change the url to an ip address if there is no existing setting
 864
 865                 if(! x($url))
 866                         $url = set_config('system','url',$a->get_baseurl());
 867                 if((! link_compare($url,$a->get_baseurl())) && (! preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/",$a->get_hostname)))
 868                         $url = set_config('system','url',$a->get_baseurl());
 869
 870                 return;
 871         }
 872 }
 873
 874
 875 // Automatic database updates
 876
 877 if(! function_exists('update_db')) {
 878         function update_db(&$a) {
 879
 880                 $build = get_config('system','build');
 881                 if(! x($build))
 882                         $build = set_config('system','build',DB_UPDATE_VERSION);
 883
 884                 if($build != DB_UPDATE_VERSION) {
 885                         $stored = intval($build);
 886                         $current = intval(DB_UPDATE_VERSION);
 887                         if(($stored < $current) && file_exists('update.php')) {
 888
 889                                 load_config('database');
 890
 891                                 // We're reporting a different version than what is currently installed.
 892                                 // Run any existing update scripts to bring the database up to current.
 893
 894                                 require_once('update.php');
 895
 896                                 // make sure that boot.php and update.php are the same release, we might be
 897                                 // updating right this very second and the correct version of the update.php
 898                                 // file may not be here yet. This can happen on a very busy site.
 899
 900                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
 901
 902                                         for($x = $stored; $x < $current; $x ++) {
 903                                                 if(function_exists('update_' . $x)) {
 904
 905                                                         // There could be a lot of processes running or about to run.
 906                                                         // We want exactly one process to run the update command.
 907                                                         // So store the fact that we're taking responsibility
 908                                                         // after first checking to see if somebody else already has.
 909
 910                                                         // If the update fails or times-out completely you may need to
 911                                                         // delete the config entry to try again.
 912
 913                                                         $t = get_config('database','update_' . $x);
 914                                                         if($t !== false)
 915                                                                 break;
 916                                                         set_config('database','update_' . $x, time());
 917
 918                                                         // call the specific update
 919
 920                                                         $func = 'update_' . $x;
 921                                                         $retval = $func();
 922                                                         if($retval) {
 923                                                                 //send the administrator an e-mail
 924                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
 925                                                                 $email_msg = replace_macros($email_tpl, array(
 926                                                                         '$sitename' => $a->config['sitename'],
 927                                                                         '$siteurl' =>  $a->get_baseurl(),
 928                                                                         '$update' => $x,
 929                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
 930                                                                 ));
 931                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
 932                                                                 require_once('include/email.php');
 933                                                                 $subject = email_header_encode($subject,'UTF-8');
 934                                                                 mail($a->config['admin_email'], $subject, $email_msg,
 935                                                                         'From: ' . 'Administrator' . '@' . $_SERVER['SERVER_NAME'] . "\n"
 936                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
 937                                                                         . 'Content-transfer-encoding: 8bit' );
 938                                                                 //try the logger
 939                                                                 logger('CRITICAL: Update Failed: '. $x);
 940                                                                 break;
 941                                                         }
 942                                                         else {
 943                                                                 set_config('database','update_' . $x, 'success');
 944                                                                 set_config('system','build', $x + 1);
 945                                                         }
 946                                                 }
 947                                         }
 948                                 }
 949                         }
 950                 }
 951
 952                 return;
 953         }
 954 }
 955
 956
 957 if(! function_exists('check_plugins')) {
 958         function check_plugins(&$a) {
 959
 960                 /**
 961                  *
 962                  * Synchronise plugins:
 963                  *
 964                  * $a->config['system']['addon'] contains a comma-separated list of names
 965                  * of plugins/addons which are used on this system.
 966                  * Go through the database list of already installed addons, and if we have
 967                  * an entry, but it isn't in the config list, call the uninstall procedure
 968                  * and mark it uninstalled in the database (for now we'll remove it).
 969                  * Then go through the config list and if we have a plugin that isn't installed,
 970                  * call the install procedure and add it to the database.
 971                  *
 972                  */
 973
 974                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
 975                 if(count($r))
 976                         $installed = $r;
 977                 else
 978                         $installed = array();
 979
 980                 $plugins = get_config('system','addon');
 981                 $plugins_arr = array();
 982
 983                 if($plugins)
 984                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
 985
 986                 $a->plugins = $plugins_arr;
 987
 988                 $installed_arr = array();
 989
 990                 if(count($installed)) {
 991                         foreach($installed as $i) {
 992                                 if(! in_array($i['name'],$plugins_arr)) {
 993                                         uninstall_plugin($i['name']);
 994                                 }
 995                                 else {
 996                                         $installed_arr[] = $i['name'];
 997                                 }
 998                         }
 999                 }
1000
1001                 if(count($plugins_arr)) {
1002                         foreach($plugins_arr as $p) {
1003                                 if(! in_array($p,$installed_arr)) {
1004                                         install_plugin($p);
1005                                 }
1006                         }
1007                 }
1008
1009
1010                 load_hooks();
1011
1012                 return;
1013         }
1014 }
1015
1016
1017 function get_guid($size=16) {
1018         $exists = true; // assume by default that we don't have a unique guid
1019         do {
1020                 $s = random_string($size);
1021                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
1022                 if(! count($r))
1023                         $exists = false;
1024         } while($exists);
1025         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
1026         return $s;
1027 }
1028
1029
1030 // wrapper for adding a login box. If $register == true provide a registration
1031 // link. This will most always depend on the value of $a->config['register_policy'].
1032 // returns the complete html for inserting into the page
1033
1034 if(! function_exists('login')) {
1035         function login($register = false, $hiddens=false) {
1036                 $a = get_app();
1037                 $o = "";
1038                 $reg = false;
1039                 if ($register) {
1040                         $reg = array(
1041                                 'title' => t('Create a New Account'),
1042                                 'desc' => t('Register')
1043                         );
1044                 }
1045
1046                 $noid = get_config('system','no_openid');
1047
1048                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
1049
1050                 if(local_user()) {
1051                         $tpl = get_markup_template("logout.tpl");
1052                 }
1053                 else {
1054                         $a->page['htmlhead'] .= replace_macros(get_markup_template("login_head.tpl"),array(
1055                                 '$baseurl'              => $a->get_baseurl(true)
1056                         ));
1057
1058                         $tpl = get_markup_template("login.tpl");
1059                         $_SESSION['return_url'] = $a->query_string;
1060                         $a->module = 'login';
1061                 }
1062
1063                 $o .= replace_macros($tpl, array(
1064
1065                         '$dest_url'     => $dest_url,
1066                         '$logout'       => t('Logout'),
1067                         '$login'        => t('Login'),
1068
1069                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
1070                         '$lpassword'    => array('password', t('Password: '), '', ''),
1071                         '$lremember'    => array('remember', t('Remember me'), 0, ''),
1072
1073                         '$openid'               => !$noid,
1074                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
1075
1076                         '$hiddens'      => $hiddens,
1077
1078                         '$register'     => $reg,
1079
1080                         '$lostpass'     => t('Forgot your password?'),
1081                         '$lostlink'     => t('Password Reset'),
1082
1083                         '$tostitle'     => t('Website Terms of Service'),
1084                         '$toslink'      => t('terms of service'),
1085
1086                         '$privacytitle' => t('Website Privacy Policy'),
1087                         '$privacylink'  => t('privacy policy'),
1088
1089                 ));
1090
1091                 call_hooks('login_hook',$o);
1092
1093                 return $o;
1094         }
1095 }
1096
1097 // Used to end the current process, after saving session state.
1098
1099 if(! function_exists('killme')) {
1100         function killme() {
1101                 session_write_close();
1102                 exit;
1103         }
1104 }
1105
1106 // redirect to another URL and terminate this process.
1107
1108 if(! function_exists('goaway')) {
1109         function goaway($s) {
1110                 header("Location: $s");
1111                 killme();
1112         }
1113 }
1114
1115
1116 // Returns the uid of locally logged in user or false.
1117
1118 if(! function_exists('local_user')) {
1119         function local_user() {
1120                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1121                         return intval($_SESSION['uid']);
1122                 return false;
1123         }
1124 }
1125
1126 // Returns contact id of authenticated site visitor or false
1127
1128 if(! function_exists('remote_user')) {
1129         function remote_user() {
1130                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1131                         return intval($_SESSION['visitor_id']);
1132                 return false;
1133         }
1134 }
1135
1136 // contents of $s are displayed prominently on the page the next time
1137 // a page is loaded. Usually used for errors or alerts.
1138
1139 if(! function_exists('notice')) {
1140         /**
1141          * Show an error message to user.
1142          *
1143          * This function save text in session, to be shown to the user at next page load
1144          *
1145          * @param string $s - Text of notice
1146          */
1147         function notice($s) {
1148                 $a = get_app();
1149                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
1150                 if($a->interactive)
1151                         $_SESSION['sysmsg'][] = $s;
1152         }
1153 }
1154 if(! function_exists('info')) {
1155         /**
1156          * Show an info message to user.
1157          *
1158          * This function save text in session, to be shown to the user at next page load
1159          *
1160          * @param string $s - Text of notice
1161          */
1162         function info($s) {
1163                 $a = get_app();
1164                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
1165                 if($a->interactive)
1166                         $_SESSION['sysmsg_info'][] = $s;
1167         }
1168 }
1169
1170
1171 // wrapper around config to limit the text length of an incoming message
1172
1173 if(! function_exists('get_max_import_size')) {
1174         function get_max_import_size() {
1175                 global $a;
1176                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1177         }
1178 }
1179
1180
1181
1182 /**
1183  *
1184  * Function : profile_load
1185  * @parameter App    $a
1186  * @parameter string $nickname
1187  * @parameter int    $profile
1188  *
1189  * Summary: Loads a profile into the page sidebar.
1190  * The function requires a writeable copy of the main App structure, and the nickname
1191  * of a registered local account.
1192  *
1193  * If the viewer is an authenticated remote viewer, the profile displayed is the
1194  * one that has been configured for his/her viewing in the Contact manager.
1195  * Passing a non-zero profile ID can also allow a preview of a selected profile
1196  * by the owner.
1197  *
1198  * Profile information is placed in the App structure for later retrieval.
1199  * Honours the owner's chosen theme for display.
1200  *
1201  * IMPORTANT: Should only be run in the _init() functions of a module. That ensures that
1202  * the theme is chosen before the _init() function of a theme is run, which will usually
1203  * load a lot of theme-specific content
1204  *
1205  */
1206
1207 if(! function_exists('profile_load')) {
1208         function profile_load(&$a, $nickname, $profile = 0) {
1209
1210                 $user = q("select uid from user where nickname = '%s' limit 1",
1211                         dbesc($nickname)
1212                 );
1213
1214                 if(! ($user && count($user))) {
1215                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1216                         notice( t('Requested account is not available.') . EOL );
1217                         $a->error = 404;
1218                         return;
1219                 }
1220
1221                 if(remote_user() && count($_SESSION['remote'])) {
1222                         foreach($_SESSION['remote'] as $visitor) {
1223                                 if($visitor['uid'] == $user[0]['uid']) {
1224                                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1225                                                 intval($visitor['cid'])
1226                                         );
1227                                         if(count($r))
1228                                                 $profile = $r[0]['profile-id'];
1229                                         break;
1230                                 }
1231                         }
1232                 }
1233
1234                 $r = null;
1235
1236                 if($profile) {
1237                         $profile_int = intval($profile);
1238                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1239                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1240                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1241                                         dbesc($nickname),
1242                                         intval($profile_int)
1243                         );
1244                 }
1245                 if((! $r) && (!  count($r))) {
1246                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1247                                         left join `contact` on `contact`.`uid` = `profile`.`uid` LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
1248                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1249                                         dbesc($nickname)
1250                         );
1251                 }
1252
1253                 if(($r === false) || (! count($r))) {
1254                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1255                         notice( t('Requested profile is not available.') . EOL );
1256                         $a->error = 404;
1257                         return;
1258                 }
1259
1260                 // fetch user tags if this isn't the default profile
1261
1262                 if(! $r[0]['is-default']) {
1263                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1264                                         intval($r[0]['profile_uid'])
1265                         );
1266                         if($x && count($x))
1267                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1268                 }
1269
1270                 $a->profile = $r[0];
1271
1272                 $a->profile['mobile-theme'] = get_pconfig($a->profile['profile_uid'], 'system', 'mobile_theme');
1273
1274
1275                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1276                 $_SESSION['theme'] = $a->profile['theme'];
1277                 $_SESSION['mobile-theme'] = $a->profile['mobile-theme'];
1278
1279                 /**
1280                  * load/reload current theme info
1281                  */
1282
1283                 $a->set_template_engine(); // reset the template engine to the default in case the user's theme doesn't specify one
1284
1285                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1286                 if (file_exists($theme_info_file)){
1287                         require_once($theme_info_file);
1288                 }
1289
1290                 if(! (x($a->page,'aside')))
1291                         $a->page['aside'] = '';
1292
1293                 if(local_user() && local_user() == $a->profile['uid']) {
1294                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1295                                 '$editprofile' => t('Edit profile'),
1296                                 '$profid' => $a->profile['id']
1297                         ));
1298                 }
1299
1300                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1301
1302                 $a->page['aside'] .= profile_sidebar($a->profile, $block);
1303
1304                 /*if(! $block)
1305                  $a->page['aside'] .= contact_block();*/
1306
1307                 return;
1308         }
1309 }
1310
1311
1312 /**
1313  *
1314  * Function: profile_sidebar
1315  *
1316  * Formats a profile for display in the sidebar.
1317  * It is very difficult to templatise the HTML completely
1318  * because of all the conditional logic.
1319  *
1320  * @parameter: array $profile
1321  *
1322  * Returns HTML string stuitable for sidebar inclusion
1323  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1324  *
1325  */
1326
1327
1328 if(! function_exists('profile_sidebar')) {
1329         function profile_sidebar($profile, $block = 0) {
1330
1331                 $a = get_app();
1332
1333                 $o = '';
1334                 $location = false;
1335                 $address = false;
1336                 $pdesc = true;
1337
1338                 if((! is_array($profile)) && (! count($profile)))
1339                         return $o;
1340
1341                 $profile['picdate'] = urlencode($profile['picdate']);
1342
1343                 call_hooks('profile_sidebar_enter', $profile);
1344
1345
1346                 // don't show connect link to yourself
1347                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1348
1349                 // don't show connect link to authenticated visitors either
1350
1351                 if(remote_user() && count($_SESSION['remote'])) {
1352                         foreach($_SESSION['remote'] as $visitor) {
1353                                 if($visitor['uid'] == $profile['uid']) {
1354                                         $connect = false;
1355                                         break;
1356                                 }
1357                         }
1358                 }
1359
1360                 if( get_my_url() && $profile['unkmail'] && ($profile['uid'] != local_user()) )
1361                         $wallmessage = t('Message');
1362                 else
1363                         $wallmessage = false;
1364
1365
1366
1367                 // show edit profile to yourself
1368                 if ($profile['uid'] == local_user() && feature_enabled(local_user(),'multi_profiles')) {
1369                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1370
1371                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1372                                         local_user());
1373
1374                         $profile['menu'] = array(
1375                                 'chg_photo' => t('Change profile photo'),
1376                                 'cr_new' => t('Create New Profile'),
1377                                 'entries' => array(),
1378                         );
1379
1380                         if(count($r)) {
1381
1382                                 foreach($r as $rr) {
1383                                         $profile['menu']['entries'][] = array(
1384                                                 'photo' => $rr['thumb'],
1385                                                 'id' => $rr['id'],
1386                                                 'alt' => t('Profile Image'),
1387                                                 'profile_name' => $rr['profile-name'],
1388                                                 'isdefault' => $rr['is-default'],
1389                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1390                                                 'edit_visibility' => t('Edit visibility'),
1391
1392                                         );
1393                                 }
1394
1395
1396                         }
1397                 }
1398         if ($profile['uid'] == local_user() && !feature_enabled(local_user(),'multi_profiles')) {
1399             $profile['edit'] = array($a->get_baseurl(). '/profiles/'.$profile['id'], t('Edit profile'),"", t('Edit profile'));
1400                 $profile['menu'] = array(
1401                                 'chg_photo' => t('Change profile photo'),
1402                                 'cr_new' => null,
1403                                 'entries' => array(),
1404                         );
1405         }
1406
1407
1408
1409
1410                 if((x($profile,'address') == 1)
1411                                 || (x($profile,'locality') == 1)
1412                                 || (x($profile,'region') == 1)
1413                                 || (x($profile,'postal-code') == 1)
1414                                 || (x($profile,'country-name') == 1))
1415                         $location = t('Location:');
1416
1417                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1418
1419
1420                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1421
1422                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1423
1424                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1425                         $location = $pdesc = $gender = $marital = $homepage = False;
1426                 }
1427
1428                 $firstname = ((strpos($profile['name'],' '))
1429                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1430                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1431
1432                 $diaspora = array(
1433                         'podloc' => $a->get_baseurl(),
1434                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1435                         'nickname' => $profile['nickname'],
1436                         'fullname' => $profile['name'],
1437                         'firstname' => $firstname,
1438                         'lastname' => $lastname,
1439                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1440                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1441                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1442                 );
1443
1444                 if (!$block){
1445                         $contact_block = contact_block();
1446                 }
1447
1448
1449                 $p = array();
1450                 foreach($profile as $k => $v) {
1451                         $k = str_replace('-','_',$k);
1452                         $p[$k] = $v;
1453                 }
1454
1455                 if($a->theme['template_engine'] === 'internal')
1456                         $location = template_escape($location);
1457
1458
1459                 $tpl = get_markup_template('profile_vcard.tpl');
1460                 $o .= replace_macros($tpl, array(
1461                         '$profile' => $p,
1462                         '$connect'  => $connect,
1463                         '$wallmessage' => $wallmessage,
1464                         '$location' => $location,
1465                         '$gender'   => $gender,
1466                         '$pdesc'        => $pdesc,
1467                         '$marital'  => $marital,
1468                         '$homepage' => $homepage,
1469                         '$diaspora' => $diaspora,
1470                         '$contact_block' => $contact_block,
1471                 ));
1472
1473
1474                 $arr = array('profile' => &$profile, 'entry' => &$o);
1475
1476                 call_hooks('profile_sidebar', $arr);
1477
1478                 return $o;
1479         }
1480 }
1481
1482
1483 if(! function_exists('get_birthdays')) {
1484         function get_birthdays() {
1485
1486                 $a = get_app();
1487                 $o = '';
1488
1489                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1490                         return $o;
1491
1492 //              $mobile_detect = new Mobile_Detect();
1493 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1494
1495 //              if($is_mobile)
1496 //                      return $o;
1497
1498                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1499                 $bd_short = t('F d');
1500
1501                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1502                                 LEFT JOIN `contact` ON `contact`.`id` = `event`.`cid`
1503                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1504                                 ORDER BY `start` ASC ",
1505                                 intval(local_user()),
1506                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1507                                 dbesc(datetime_convert('UTC','UTC','now'))
1508                 );
1509
1510                 if($r && count($r)) {
1511                         $total = 0;
1512                         $now = strtotime('now');
1513                         $cids = array();
1514
1515                         $istoday = false;
1516                         foreach($r as $rr) {
1517                                 if(strlen($rr['name']))
1518                                         $total ++;
1519                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1520                                         $istoday = true;
1521                         }
1522                         $classtoday = $istoday ? ' birthday-today ' : '';
1523                         if($total) {
1524                                 foreach($r as &$rr) {
1525                                         if(! strlen($rr['name']))
1526                                                 continue;
1527
1528                                         // avoid duplicates
1529
1530                                         if(in_array($rr['cid'],$cids))
1531                                                 continue;
1532                                         $cids[] = $rr['cid'];
1533
1534                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1535                                         $sparkle = '';
1536                                         $url = $rr['url'];
1537                                         if($rr['network'] === NETWORK_DFRN) {
1538                                                 $sparkle = " sparkle";
1539                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1540                                         }
1541
1542                                         $rr['link'] = $url;
1543                                         $rr['title'] = $rr['name'];
1544                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1545                                         $rr['startime'] = Null;
1546                                         $rr['today'] = $today;
1547
1548                                 }
1549                         }
1550                 }
1551                 $tpl = get_markup_template("birthdays_reminder.tpl");
1552                 return replace_macros($tpl, array(
1553                         '$baseurl' => $a->get_baseurl(),
1554                         '$classtoday' => $classtoday,
1555                         '$count' => $total,
1556                         '$event_reminders' => t('Birthday Reminders'),
1557                         '$event_title' => t('Birthdays this week:'),
1558                         '$events' => $r,
1559                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1560                         '$rbr' => '}'
1561
1562                 ));
1563         }
1564 }
1565
1566
1567 if(! function_exists('get_events')) {
1568         function get_events() {
1569
1570                 require_once('include/bbcode.php');
1571
1572                 $a = get_app();
1573
1574                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1575                         return $o;
1576
1577
1578 //              $mobile_detect = new Mobile_Detect();
1579 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1580
1581 //              if($is_mobile)
1582 //                      return $o;
1583
1584                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1585                 $bd_short = t('F d');
1586
1587                 $r = q("SELECT `event`.* FROM `event`
1588                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1589                                 ORDER BY `start` ASC ",
1590                                 intval(local_user()),
1591                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1592                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1593                 );
1594
1595                 if($r && count($r)) {
1596                         $now = strtotime('now');
1597                         $istoday = false;
1598                         foreach($r as $rr) {
1599                                 if(strlen($rr['name']))
1600                                         $total ++;
1601
1602                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1603                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1604                                         $istoday = true;
1605                         }
1606                         $classtoday = (($istoday) ? 'event-today' : '');
1607
1608
1609                         foreach($r as &$rr) {
1610                                 if($rr['adjust'])
1611                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1612                                 else
1613                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1614                                 $md .= "/#link-".$rr['id'];
1615
1616                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1617                                 if(! $title)
1618                                         $title = t('[No description]');
1619
1620                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1621                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1622
1623                                 $rr['link'] = $md;
1624                                 $rr['title'] = $title;
1625                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1626                                 $rr['startime'] = $strt;
1627                                 $rr['today'] = $today;
1628                         }
1629                 }
1630
1631                 $tpl = get_markup_template("events_reminder.tpl");
1632                 return replace_macros($tpl, array(
1633                         '$baseurl' => $a->get_baseurl(),
1634                         '$classtoday' => $classtoday,
1635                         '$count' => count($r),
1636                         '$event_reminders' => t('Event Reminders'),
1637                         '$event_title' => t('Events this week:'),
1638                         '$events' => $r,
1639                 ));
1640         }
1641 }
1642
1643
1644 /**
1645  *
1646  * Wrap calls to proc_close(proc_open()) and call hook
1647  * so plugins can take part in process :)
1648  *
1649  * args:
1650  * $cmd program to run
1651  *  next args are passed as $cmd command line
1652  *
1653  * e.g.: proc_run("ls","-la","/tmp");
1654  *
1655  * $cmd and string args are surrounded with ""
1656  */
1657
1658 if(! function_exists('proc_run')) {
1659         function proc_run($cmd){
1660
1661                 $a = get_app();
1662
1663                 $args = func_get_args();
1664
1665                 $newargs = array();
1666                 if(! count($args))
1667                         return;
1668
1669                 // expand any arrays
1670
1671                 foreach($args as $arg) {
1672                         if(is_array($arg)) {
1673                                 foreach($arg as $n) {
1674                                         $newargs[] = $n;
1675                                 }
1676                         }
1677                         else
1678                                 $newargs[] = $arg;
1679                 }
1680
1681                 $args = $newargs;
1682
1683                 $arr = array('args' => $args, 'run_cmd' => true);
1684
1685                 call_hooks("proc_run", $arr);
1686                 if(! $arr['run_cmd'])
1687                         return;
1688
1689                 if(count($args) && $args[0] === 'php')
1690                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1691
1692         // add baseurl to args. cli scripts can't construct it
1693         $args[] = $a->get_baseurl();
1694
1695         for($x = 0; $x < count($args); $x ++)
1696                         $args[$x] = escapeshellarg($args[$x]);
1697
1698
1699
1700                 $cmdline = implode($args," ");
1701                 if(get_config('system','proc_windows'))
1702                         proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
1703                 else
1704                         proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
1705         }
1706 }
1707
1708 if(! function_exists('current_theme')) {
1709         function current_theme(){
1710                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1711
1712                 $a = get_app();
1713
1714 //              $mobile_detect = new Mobile_Detect();
1715 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1716                 $is_mobile = $a->is_mobile || $a->is_tablet;
1717
1718                 if($is_mobile) {
1719                         if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1720                                 $system_theme = '';
1721                                 $theme_name = '';
1722                         }
1723                         else {
1724                                 $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1725                                 $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1726
1727                                 if($theme_name === '---') {
1728                                         // user has selected to have the mobile theme be the same as the normal one
1729                                         $system_theme = '';
1730                                         $theme_name = '';
1731                                 }
1732                         }
1733                 }
1734                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1735                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1736                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1737                 }
1738
1739                 if($theme_name &&
1740                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1741                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1742                         return($theme_name);
1743
1744                 foreach($app_base_themes as $t) {
1745                         if(file_exists('view/theme/' . $t . '/style.css')||
1746                                         file_exists('view/theme/' . $t . '/style.php'))
1747                                 return($t);
1748                 }
1749
1750                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1751                 if(count($fallback))
1752                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1753
1754         }
1755 }
1756
1757 /*
1758  * Return full URL to theme which is currently in effect.
1759 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1760 */
1761 if(! function_exists('current_theme_url')) {
1762         function current_theme_url() {
1763                 global $a;
1764                 $t = current_theme();
1765                 if (file_exists('view/theme/' . $t . '/style.php'))
1766                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1767                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1768         }
1769 }
1770
1771 if(! function_exists('feed_birthday')) {
1772         function feed_birthday($uid,$tz) {
1773
1774                 /**
1775                  *
1776                  * Determine the next birthday, but only if the birthday is published
1777                  * in the default profile. We _could_ also look for a private profile that the
1778                  * recipient can see, but somebody could get mad at us if they start getting
1779                  * public birthday greetings when they haven't made this info public.
1780                  *
1781                  * Assuming we are able to publish this info, we are then going to convert
1782                  * the start time from the owner's timezone to UTC.
1783                  *
1784                  * This will potentially solve the problem found with some social networks
1785                  * where birthdays are converted to the viewer's timezone and salutations from
1786                  * elsewhere in the world show up on the wrong day. We will convert it to the
1787                  * viewer's timezone also, but first we are going to convert it from the birthday
1788                  * person's timezone to GMT - so the viewer may find the birthday starting at
1789                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1790                  *
1791                  */
1792
1793
1794                 $birthday = '';
1795
1796                 if(! strlen($tz))
1797                         $tz = 'UTC';
1798
1799                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
1800                                 intval($uid)
1801                 );
1802
1803                 if($p && count($p)) {
1804                         $tmp_dob = substr($p[0]['dob'],5);
1805                         if(intval($tmp_dob)) {
1806                                 $y = datetime_convert($tz,$tz,'now','Y');
1807                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
1808                                 $t_dob = strtotime($bd);
1809                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
1810                                 if($t_dob < $now)
1811                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
1812                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
1813                         }
1814                 }
1815
1816                 return $birthday;
1817         }
1818 }
1819
1820 if(! function_exists('is_site_admin')) {
1821         function is_site_admin() {
1822                 $a = get_app();
1823                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
1824                         return true;
1825                 return false;
1826         }
1827 }
1828
1829
1830 if(! function_exists('load_contact_links')) {
1831         function load_contact_links($uid) {
1832
1833                 $a = get_app();
1834
1835                 $ret = array();
1836
1837                 if(! $uid || x($a->contacts,'empty'))
1838                         return;
1839
1840                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
1841                                 intval($uid)
1842                 );
1843                 if(count($r)) {
1844                         foreach($r as $rr){
1845                                 $url = normalise_link($rr['url']);
1846                                 $ret[$url] = $rr;
1847                         }
1848                 }
1849                 else
1850                         $ret['empty'] = true;
1851                 $a->contacts = $ret;
1852                 return;
1853         }
1854 }
1855
1856 if(! function_exists('profile_tabs')){
1857         function profile_tabs($a, $is_owner=False, $nickname=Null){
1858                 //echo "<pre>"; var_dump($a->user); killme();
1859
1860                 if (is_null($nickname))
1861                         $nickname  = $a->user['nickname'];
1862
1863                 if(x($_GET,'tab'))
1864                         $tab = notags(trim($_GET['tab']));
1865
1866                 $url = $a->get_baseurl() . '/profile/' . $nickname;
1867
1868                 $tabs = array(
1869                         array(
1870                                 'label'=>t('Status'),
1871                                 'url' => $url,
1872                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
1873                                 'title' => t('Status Messages and Posts'),
1874                                 'id' => 'status-tab',
1875                         ),
1876                         array(
1877                                 'label' => t('Profile'),
1878                                 'url'   => $url.'/?tab=profile',
1879                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
1880                                 'title' => t('Profile Details'),
1881                                 'id' => 'profile-tab',
1882                         ),
1883                         array(
1884                                 'label' => t('Photos'),
1885                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
1886                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
1887                                 'title' => t('Photo Albums'),
1888                                 'id' => 'photo-tab',
1889                         ),
1890                 );
1891
1892                 if ($is_owner){
1893                         $tabs[] = array(
1894                                 'label' => t('Events'),
1895                                 'url'   => $a->get_baseurl() . '/events',
1896                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
1897                                 'title' => t('Events and Calendar'),
1898                                 'id' => 'events-tab',
1899                         );
1900                         $tabs[] = array(
1901                                 'label' => t('Personal Notes'),
1902                                 'url'   => $a->get_baseurl() . '/notes',
1903                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
1904                                 'title' => t('Only You Can See This'),
1905                                 'id' => 'notes-tab',
1906                         );
1907                 }
1908
1909
1910                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
1911                 call_hooks('profile_tabs', $arr);
1912
1913                 $tpl = get_markup_template('common_tabs.tpl');
1914
1915                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
1916         }
1917 }
1918
1919 function get_my_url() {
1920         if(x($_SESSION,'my_url'))
1921                 return $_SESSION['my_url'];
1922         return false;
1923 }
1924
1925 function zrl_init(&$a) {
1926         $tmp_str = get_my_url();
1927         if(validate_url($tmp_str)) {
1928                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
1929                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
1930                 call_hooks('zrl_init',$arr);
1931         }
1932 }
1933
1934 function zrl($s,$force = false) {
1935         if(! strlen($s))
1936                 return $s;
1937         if((! strpos($s,'/profile/')) && (! $force))
1938                 return $s;
1939         if($force && substr($s,-1,1) !== '/')
1940                 $s = $s . '/';
1941         $achar = strpos($s,'?') ? '&' : '?';
1942         $mine = get_my_url();
1943         if($mine and ! link_compare($mine,$s))
1944                 return $s . $achar . 'zrl=' . urlencode($mine);
1945         return $s;
1946 }
1947
1948 /**
1949 * returns querystring as string from a mapped array
1950 *
1951 * @param params Array
1952 * @return string
1953 */
1954 function build_querystring($params, $name=null) {
1955     $ret = "";
1956     foreach($params as $key=>$val) {
1957         if(is_array($val)) {
1958             if($name==null) {
1959                 $ret .= build_querystring($val, $key);
1960             } else {
1961                 $ret .= build_querystring($val, $name."[$key]");
1962             }
1963         } else {
1964             $val = urlencode($val);
1965             if($name!=null) {
1966                 $ret.=$name."[$key]"."=$val&";
1967             } else {
1968                 $ret.= "$key=$val&";
1969             }
1970         }
1971     }
1972     return $ret;
1973 }
1974
1975 function explode_querystring($query) {
1976         $arg_st = strpos($query, '?');
1977         if($arg_st !== false) {
1978                 $base = substr($query, 0, $arg_st);
1979                 $arg_st += 1;
1980         }
1981         else {
1982                 $base = '';
1983                 $arg_st = 0;
1984         }
1985
1986         $args = explode('&', substr($query, $arg_st));
1987         foreach($args as $k=>$arg) {
1988                 if($arg === '')
1989                         unset($args[$k]);
1990         }
1991         $args = array_values($args);
1992
1993         if(!$base) {
1994                 $base = $args[0];
1995                 unset($args[0]);
1996                 $args = array_values($args);
1997         }
1998
1999         return array(
2000                 'base' => $base,
2001                 'args' => $args,
2002         );
2003 }
2004
2005 /**
2006 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
2007 *
2008 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
2009 */
2010 function curPageURL() {
2011         $pageURL = 'http';
2012         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
2013         $pageURL .= "://";
2014         if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
2015                 $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
2016         } else {
2017                 $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
2018         }
2019         return $pageURL;
2020 }
2021
2022 function random_digits($digits) {
2023         $rn = '';
2024         for($i = 0; $i < $digits; $i++) {
2025                 $rn .= rand(0,9);
2026         }
2027         return $rn;
2028 }
2029
2030 function get_cachefile($file, $writemode = true) {
2031         $cache = get_config("system","itemcache");
2032
2033         if ($cache == "")
2034                 return("");
2035
2036         if (!is_dir($cache))
2037                 return("");
2038
2039         $subfolder = $cache."/".substr($file, 0, 2);
2040
2041         $cachepath = $subfolder."/".$file;
2042
2043         if ($writemode) {
2044                 if (!is_dir($subfolder)) {
2045                         mkdir($subfolder);
2046                         chmod($subfolder, 0777);
2047                 }
2048         }
2049
2050         return($cachepath);
2051 }
2052
2053 function clear_cache($basepath = "", $path = "") {
2054         if ($path == "") {
2055                 $basepath = get_config('system','itemcache');
2056                 $path = $basepath;
2057         }
2058
2059         if (($path == "") OR (!is_dir($path)))
2060                 return;
2061
2062         if (substr(realpath($path), 0, strlen($basepath)) != $basepath)
2063                 return;
2064
2065         $cachetime = (int)get_config('system','itemcache_duration');
2066         if ($cachetime == 0)
2067                 $cachetime = 86400;
2068
2069         if ($dh = opendir($path)) {
2070                 while (($file = readdir($dh)) !== false) {
2071                         $fullpath = $path."/".$file;
2072                         if ((filetype($fullpath) == "dir") and ($file != ".") and ($file != ".."))
2073                                 clear_cache($basepath, $fullpath);
2074                         if ((filetype($fullpath) == "file") and (filectime($fullpath) < (time() - $cachetime)))
2075                                 unlink($fullpath);
2076                 }
2077                 closedir($dh);
2078         }
2079 }
2080
2081 function set_template_engine(&$a, $engine = 'internal') {
2082 // This function is no longer necessary, but keep it as a wrapper to the class method
2083 // to avoid breaking themes again unnecessarily
2084
2085         $a->set_template_engine($engine);
2086 }
2087