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',      '3.2.1753' );
  16 define ( 'DFRN_PROTOCOL_VERSION',  '2.23'    );
  17 define ( 'DB_UPDATE_VERSION',      1173      );
  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 define ( 'NETWORK_PUMPIO',           'pump');    // pump.io
 143 define ( 'NETWORK_TWITTER',          'twit');    // Twitter
 144 define ( 'NETWORK_DIASPORA2',        'dspc');    // Diaspora connector
 145 define ( 'NETWORK_STATUSNET',        'stac');    // Statusnet connector
 146 define ( 'NETWORK_APPNET',           'apdn');    // app.net
 147
 148 define ( 'NETWORK_PHANTOM',          'unkn');    // Place holder
 149
 150 /**
 151  * These numbers are used in stored permissions
 152  * and existing allocations MUST NEVER BE CHANGED
 153  * OR RE-ASSIGNED! You may only add to them.
 154  */
 155
 156 $netgroup_ids = array(
 157         NETWORK_DFRN     => (-1),
 158         NETWORK_ZOT      => (-2),
 159         NETWORK_OSTATUS  => (-3),
 160         NETWORK_FEED     => (-4),
 161         NETWORK_DIASPORA => (-5),
 162         NETWORK_MAIL     => (-6),
 163         NETWORK_MAIL2    => (-7),
 164         NETWORK_FACEBOOK => (-8),
 165         NETWORK_LINKEDIN => (-9),
 166         NETWORK_XMPP     => (-10),
 167         NETWORK_MYSPACE  => (-11),
 168         NETWORK_GPLUS    => (-12),
 169         NETWORK_PUMPIO   => (-13),
 170         NETWORK_TWITTER  => (-14),
 171         NETWORK_DIASPORA2 => (-15),
 172         NETWORK_STATUSNET => (-16),
 173         NETWORK_APPNET => (-17),
 174
 175         NETWORK_PHANTOM  => (-127),
 176 );
 177
 178
 179 /**
 180  * Maximum number of "people who like (or don't like) this"  that we will list by name
 181  */
 182
 183 define ( 'MAX_LIKERS',    75);
 184
 185 /**
 186  * Communication timeout
 187  */
 188
 189 define ( 'ZCURL_TIMEOUT' , (-1));
 190
 191
 192 /**
 193  * email notification options
 194  */
 195
 196 define ( 'NOTIFY_INTRO',    0x0001 );
 197 define ( 'NOTIFY_CONFIRM',  0x0002 );
 198 define ( 'NOTIFY_WALL',     0x0004 );
 199 define ( 'NOTIFY_COMMENT',  0x0008 );
 200 define ( 'NOTIFY_MAIL',     0x0010 );
 201 define ( 'NOTIFY_SUGGEST',  0x0020 );
 202 define ( 'NOTIFY_PROFILE',  0x0040 );
 203 define ( 'NOTIFY_TAGSELF',  0x0080 );
 204 define ( 'NOTIFY_TAGSHARE', 0x0100 );
 205 define ( 'NOTIFY_POKE',     0x0200 );
 206 define ( 'NOTIFY_SHARE',    0x0400 );
 207
 208 define ( 'NOTIFY_SYSTEM',   0x8000 );
 209
 210
 211 /**
 212  * Tag/term types
 213  */
 214
 215 define ( 'TERM_UNKNOWN',   0 );
 216 define ( 'TERM_HASHTAG',   1 );
 217 define ( 'TERM_MENTION',   2 );
 218 define ( 'TERM_CATEGORY',  3 );
 219 define ( 'TERM_PCATEGORY', 4 );
 220 define ( 'TERM_FILE',      5 );
 221 define ( 'TERM_SAVEDSEARCH', 6 );
 222 define ( 'TERM_CONVERSATION', 7 );
 223
 224 define ( 'TERM_OBJ_POST',  1 );
 225 define ( 'TERM_OBJ_PHOTO', 2 );
 226
 227
 228
 229 /**
 230  * various namespaces we may need to parse
 231  */
 232
 233 define ( 'NAMESPACE_ZOT',             'http://purl.org/zot' );
 234 define ( 'NAMESPACE_DFRN' ,           'http://purl.org/macgirvin/dfrn/1.0' );
 235 define ( 'NAMESPACE_THREAD' ,         'http://purl.org/syndication/thread/1.0' );
 236 define ( 'NAMESPACE_TOMB' ,           'http://purl.org/atompub/tombstones/1.0' );
 237 define ( 'NAMESPACE_ACTIVITY',        'http://activitystrea.ms/spec/1.0/' );
 238 define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
 239 define ( 'NAMESPACE_MEDIA',           'http://purl.org/syndication/atommedia' );
 240 define ( 'NAMESPACE_SALMON_ME',       'http://salmon-protocol.org/ns/magic-env' );
 241 define ( 'NAMESPACE_OSTATUSSUB',      'http://ostatus.org/schema/1.0/subscribe' );
 242 define ( 'NAMESPACE_GEORSS',          'http://www.georss.org/georss' );
 243 define ( 'NAMESPACE_POCO',            'http://portablecontacts.net/spec/1.0' );
 244 define ( 'NAMESPACE_FEED',            'http://schemas.google.com/g/2010#updates-from' );
 245 define ( 'NAMESPACE_OSTATUS',         'http://ostatus.org/schema/1.0' );
 246 define ( 'NAMESPACE_STATUSNET',       'http://status.net/schema/api/1/' );
 247 define ( 'NAMESPACE_ATOM1',           'http://www.w3.org/2005/Atom' );
 248 /**
 249  * activity stream defines
 250  */
 251
 252 define ( 'ACTIVITY_LIKE',        NAMESPACE_ACTIVITY_SCHEMA . 'like' );
 253 define ( 'ACTIVITY_DISLIKE',     NAMESPACE_DFRN            . '/dislike' );
 254 define ( 'ACTIVITY_OBJ_HEART',   NAMESPACE_DFRN            . '/heart' );
 255
 256 define ( 'ACTIVITY_FRIEND',      NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
 257 define ( 'ACTIVITY_REQ_FRIEND',  NAMESPACE_ACTIVITY_SCHEMA . 'request-friend' );
 258 define ( 'ACTIVITY_UNFRIEND',    NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend' );
 259 define ( 'ACTIVITY_FOLLOW',      NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
 260 define ( 'ACTIVITY_UNFOLLOW',    NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
 261 define ( 'ACTIVITY_JOIN',        NAMESPACE_ACTIVITY_SCHEMA . 'join' );
 262
 263 define ( 'ACTIVITY_POST',        NAMESPACE_ACTIVITY_SCHEMA . 'post' );
 264 define ( 'ACTIVITY_UPDATE',      NAMESPACE_ACTIVITY_SCHEMA . 'update' );
 265 define ( 'ACTIVITY_TAG',         NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
 266 define ( 'ACTIVITY_FAVORITE',    NAMESPACE_ACTIVITY_SCHEMA . 'favorite' );
 267
 268 define ( 'ACTIVITY_POKE',        NAMESPACE_ZOT . '/activity/poke' );
 269 define ( 'ACTIVITY_MOOD',        NAMESPACE_ZOT . '/activity/mood' );
 270
 271 define ( 'ACTIVITY_OBJ_BOOKMARK', NAMESPACE_ACTIVITY_SCHEMA . 'bookmark' );
 272 define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
 273 define ( 'ACTIVITY_OBJ_NOTE',    NAMESPACE_ACTIVITY_SCHEMA . 'note' );
 274 define ( 'ACTIVITY_OBJ_PERSON',  NAMESPACE_ACTIVITY_SCHEMA . 'person' );
 275 define ( 'ACTIVITY_OBJ_IMAGE',   NAMESPACE_ACTIVITY_SCHEMA . 'image' );
 276 define ( 'ACTIVITY_OBJ_PHOTO',   NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
 277 define ( 'ACTIVITY_OBJ_VIDEO',   NAMESPACE_ACTIVITY_SCHEMA . 'video' );
 278 define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
 279 define ( 'ACTIVITY_OBJ_ALBUM',   NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
 280 define ( 'ACTIVITY_OBJ_EVENT',   NAMESPACE_ACTIVITY_SCHEMA . 'event' );
 281 define ( 'ACTIVITY_OBJ_GROUP',   NAMESPACE_ACTIVITY_SCHEMA . 'group' );
 282 define ( 'ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN            . '/tagterm' );
 283 define ( 'ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN            . '/profile' );
 284
 285 /**
 286  * item weight for query ordering
 287  */
 288
 289 define ( 'GRAVITY_PARENT',       0);
 290 define ( 'GRAVITY_LIKE',         3);
 291 define ( 'GRAVITY_COMMENT',      6);
 292
 293 /**
 294  *
 295  * Reverse the effect of magic_quotes_gpc if it is enabled.
 296  * Please disable magic_quotes_gpc so we don't have to do this.
 297  * See http://php.net/manual/en/security.magicquotes.disabling.php
 298  *
 299  */
 300
 301 function startup() {
 302
 303         error_reporting(E_ERROR | E_WARNING | E_PARSE);
 304
 305         set_time_limit(0);
 306
 307         // This has to be quite large to deal with embedded private photos
 308         ini_set('pcre.backtrack_limit', 500000);
 309
 310
 311         if (get_magic_quotes_gpc()) {
 312                 $process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
 313                 while (list($key, $val) = each($process)) {
 314                         foreach ($val as $k => $v) {
 315                                 unset($process[$key][$k]);
 316                                 if (is_array($v)) {
 317                                         $process[$key][stripslashes($k)] = $v;
 318                                         $process[] = &$process[$key][stripslashes($k)];
 319                                 } else {
 320                                         $process[$key][stripslashes($k)] = stripslashes($v);
 321                                 }
 322                         }
 323                 }
 324                 unset($process);
 325         }
 326
 327 }
 328
 329 /**
 330  *
 331  * class: App
 332  *
 333  * Our main application structure for the life of this page
 334  * Primarily deals with the URL that got us here
 335  * and tries to make some sense of it, and
 336  * stores our page contents and config storage
 337  * and anything else that might need to be passed around
 338  * before we spit the page out.
 339  *
 340  */
 341
 342 if(! class_exists('App')) {
 343         class App {
 344
 345                 public  $module_loaded = false;
 346                 public  $query_string;
 347                 public  $config;
 348                 public  $page;
 349                 public  $profile;
 350                 public  $user;
 351                 public  $cid;
 352                 public  $contact;
 353                 public  $contacts;
 354                 public  $page_contact;
 355                 public  $content;
 356                 public  $data = array();
 357                 public  $error = false;
 358                 public  $cmd;
 359                 public  $argv;
 360                 public  $argc;
 361                 public  $module;
 362                 public  $pager;
 363                 public  $strings;
 364                 public  $path;
 365                 public  $hooks;
 366                 public  $timezone;
 367                 public  $interactive = true;
 368                 public  $plugins;
 369                 public  $apps = array();
 370                 public  $identities;
 371                 public  $is_mobile;
 372                 public  $is_tablet;
 373                 public  $performance = array();
 374
 375                 public $nav_sel;
 376
 377                 public $category;
 378
 379
 380                 // Allow themes to control internal parameters
 381                 // by changing App values in theme.php
 382
 383                 public  $sourcename = '';
 384                 public  $videowidth = 425;
 385                 public  $videoheight = 350;
 386                 public  $force_max_items = 0;
 387                 public  $theme_thread_allow = true;
 388
 389                 // An array for all theme-controllable parameters
 390                 // Mostly unimplemented yet. Only options 'stylesheet' and
 391                 // beyond are used.
 392
 393                 public  $theme = array(
 394                         'sourcename' => '',
 395                         'videowidth' => 425,
 396                         'videoheight' => 350,
 397                         'force_max_items' => 0,
 398                         'thread_allow' => true,
 399                         'stylesheet' => '',
 400                         'template_engine' => 'smarty3',
 401                 );
 402
 403                 // array of registered template engines ('name'=>'class name')
 404                 public $template_engines = array();
 405                 // array of instanced template engines ('name'=>'instance')
 406                 public $template_engine_instance = array();
 407
 408                 // Used for reducing load to the ostatus completion
 409                 public $last_ostatus_conversation_url;
 410
 411                 private $ldelim = array(
 412                         'internal' => '',
 413                         'smarty3' => '{{'
 414                 );
 415                 private $rdelim = array(
 416                         'internal' => '',
 417                         'smarty3' => '}}'
 418                 );
 419
 420                 private $scheme;
 421                 private $hostname;
 422                 private $baseurl;
 423                 private $db;
 424
 425                 private $curl_code;
 426                 private $curl_content_type;
 427                 private $curl_headers;
 428
 429                 private $cached_profile_image;
 430                 private $cached_profile_picdate;
 431
 432                 function __construct() {
 433
 434                         global $default_timezone, $argv, $argc;
 435
 436                         $hostname = "";
 437
 438                         if (file_exists(".htpreconfig.php"))
 439                                 @include(".htpreconfig.php");
 440
 441                         $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
 442
 443                         date_default_timezone_set($this->timezone);
 444
 445                         $this->performance["start"] = microtime(true);
 446                         $this->performance["database"] = 0;
 447                         $this->performance["network"] = 0;
 448                         $this->performance["file"] = 0;
 449                         $this->performance["rendering"] = 0;
 450                         $this->performance["parser"] = 0;
 451                         $this->performance["marktime"] = 0;
 452                         $this->performance["markstart"] = microtime(true);
 453
 454                         $this->config = array();
 455                         $this->page = array();
 456                         $this->pager= array();
 457
 458                         $this->query_string = '';
 459
 460                         startup();
 461
 462                         set_include_path(
 463                                         'include' . PATH_SEPARATOR
 464                                         . 'library' . PATH_SEPARATOR
 465                                         . 'library/phpsec' . PATH_SEPARATOR
 466                                         . 'library/langdet' . PATH_SEPARATOR
 467                                         . '.' );
 468
 469
 470                         $this->scheme = 'http';
 471                         if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
 472                                 $this->scheme = 'https';
 473                         elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
 474                                 $this->scheme = 'https';
 475
 476                         if(x($_SERVER,'SERVER_NAME')) {
 477                                 $this->hostname = $_SERVER['SERVER_NAME'];
 478
 479                                 // See bug 437 - this didn't work so disabling it
 480                                 //if(stristr($this->hostname,'xn--')) {
 481                                         // PHP or webserver may have converted idn to punycode, so
 482                                         // convert punycode back to utf-8
 483                                 //      require_once('library/simplepie/idn/idna_convert.class.php');
 484                                 //      $x = new idna_convert();
 485                                 //      $this->hostname = $x->decode($_SERVER['SERVER_NAME']);
 486                                 //}
 487
 488                                 if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
 489                                         $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
 490                                 /**
 491                                  * Figure out if we are running at the top of a domain
 492                                  * or in a sub-directory and adjust accordingly
 493                                  */
 494
 495                                 $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
 496                                 if(isset($path) && strlen($path) && ($path != $this->path))
 497                                         $this->path = $path;
 498                         }
 499
 500                         if ($hostname != "")
 501                                 $this->hostname = $hostname;
 502
 503                         if (is_array($argv) && $argc>1 && substr(end($argv), 0, 4)=="http" ) {
 504                                 $this->set_baseurl(array_pop($argv) );
 505                                 $argc --;
 506                         }
 507
 508                         set_include_path("include/$this->hostname" . PATH_SEPARATOR . get_include_path());
 509
 510                         if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,9) === "pagename=") {
 511                                 $this->query_string = substr($_SERVER['QUERY_STRING'],9);
 512                                 // removing trailing / - maybe a nginx problem
 513                                 if (substr($this->query_string, 0, 1) == "/")
 514                                         $this->query_string = substr($this->query_string, 1);
 515                         } elseif((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
 516                                 $this->query_string = substr($_SERVER['QUERY_STRING'],2);
 517                                 // removing trailing / - maybe a nginx problem
 518                                 if (substr($this->query_string, 0, 1) == "/")
 519                                         $this->query_string = substr($this->query_string, 1);
 520                         }
 521                         if (x($_GET,'pagename'))
 522                                 $this->cmd = trim($_GET['pagename'],'/\\');
 523                         elseif (x($_GET,'q'))
 524                                 $this->cmd = trim($_GET['q'],'/\\');
 525
 526                         // unix style "homedir"
 527
 528                         if(substr($this->cmd,0,1) === '~')
 529                                 $this->cmd = 'profile/' . substr($this->cmd,1);
 530
 531                         // Diaspora style profile url
 532
 533                         if(substr($this->cmd,0,2) === 'u/')
 534                                 $this->cmd = 'profile/' . substr($this->cmd,2);
 535
 536                         /**
 537                          *
 538                          * Break the URL path into C style argc/argv style arguments for our
 539                          * modules. Given "http://example.com/module/arg1/arg2", $this->argc
 540                          * will be 3 (integer) and $this->argv will contain:
 541                          *   [0] => 'module'
 542                          *   [1] => 'arg1'
 543                          *   [2] => 'arg2'
 544                          *
 545                          *
 546                          * There will always be one argument. If provided a naked domain
 547                          * URL, $this->argv[0] is set to "home".
 548                          *
 549                          */
 550
 551                         $this->argv = explode('/',$this->cmd);
 552                         $this->argc = count($this->argv);
 553                         if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
 554                                 $this->module = str_replace(".", "_", $this->argv[0]);
 555                                 $this->module = str_replace("-", "_", $this->module);
 556                         }
 557                         else {
 558                                 $this->argc = 1;
 559                                 $this->argv = array('home');
 560                                 $this->module = 'home';
 561                         }
 562
 563                         /**
 564                          * See if there is any page number information, and initialise
 565                          * pagination
 566                          */
 567
 568                         $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
 569                         $this->pager['itemspage'] = 50;
 570                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 571                         if($this->pager['start'] < 0)
 572                                 $this->pager['start'] = 0;
 573                         $this->pager['total'] = 0;
 574
 575                         /**
 576                          * Detect mobile devices
 577                          */
 578
 579                         $mobile_detect = new Mobile_Detect();
 580                         $this->is_mobile = $mobile_detect->isMobile();
 581                         $this->is_tablet = $mobile_detect->isTablet();
 582
 583                         /**
 584                          * register template engines
 585                          */
 586                         $dc = get_declared_classes();
 587                         foreach ($dc as $k) {
 588                                 if (in_array("ITemplateEngine", class_implements($k))){
 589                                         $this->register_template_engine($k);
 590                                 }
 591                         }
 592
 593                 }
 594
 595                 function get_basepath() {
 596
 597                         $basepath = get_config("system", "basepath");
 598
 599                         if ($basepath == "")
 600                                 $basepath = $_SERVER["DOCUMENT_ROOT"];
 601
 602                         if ($basepath == "")
 603                                 $basepath = $_SERVER["PWD"];
 604
 605                         return($basepath);
 606                 }
 607
 608                 function get_baseurl($ssl = false) {
 609
 610                         $scheme = $this->scheme;
 611
 612                         if((x($this->config,'system')) && (x($this->config['system'],'ssl_policy'))) {
 613                                 if(intval($this->config['system']['ssl_policy']) === intval(SSL_POLICY_FULL))
 614                                         $scheme = 'https';
 615
 616                                 //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
 617                                 //      (and also the login link). Anything seen by an outsider will have it turned off.
 618
 619                                 if($this->config['system']['ssl_policy'] == SSL_POLICY_SELFSIGN) {
 620                                         if($ssl)
 621                                                 $scheme = 'https';
 622                                         else
 623                                                 $scheme = 'http';
 624                                 }
 625                         }
 626
 627                         $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
 628                         return $this->baseurl;
 629                 }
 630
 631                 function set_baseurl($url) {
 632                         $parsed = @parse_url($url);
 633
 634                         $this->baseurl = $url;
 635
 636                         if($parsed) {
 637                                 $this->scheme = $parsed['scheme'];
 638
 639                                 $hostname = $parsed['host'];
 640                                 if(x($parsed,'port'))
 641                                         $hostname .= ':' . $parsed['port'];
 642                                 if(x($parsed,'path'))
 643                                         $this->path = trim($parsed['path'],'\\/');
 644
 645                                 if (file_exists(".htpreconfig.php"))
 646                                         @include(".htpreconfig.php");
 647
 648                                 $this->hostname = $hostname;
 649                         }
 650
 651                 }
 652
 653                 function get_hostname() {
 654                         return $this->hostname;
 655                 }
 656
 657                 function set_hostname($h) {
 658                         $this->hostname = $h;
 659                 }
 660
 661                 function set_path($p) {
 662                         $this->path = trim(trim($p),'/');
 663                 }
 664
 665                 function get_path() {
 666                         return $this->path;
 667                 }
 668
 669                 function set_pager_total($n) {
 670                         $this->pager['total'] = intval($n);
 671                 }
 672
 673                 function set_pager_itemspage($n) {
 674                         $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
 675                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 676                 }
 677
 678                 function set_pager_page($n) {
 679                         $this->pager['page'] = $n;
 680                         $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
 681                 }
 682
 683                 function init_pagehead() {
 684                         $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
 685                         if($interval < 10000)
 686                                 $interval = 40000;
 687
 688                         $this->page['title'] = $this->config['sitename'];
 689
 690                         /* put the head template at the beginning of page['htmlhead']
 691                          * since the code added by the modules frequently depends on it
 692                          * being first
 693                          */
 694                         if(!isset($this->page['htmlhead']))
 695                                 $this->page['htmlhead'] = '';
 696
 697                         // If we're using Smarty, then doing replace_macros() will replace
 698                         // any unrecognized variables with a blank string. Since we delay
 699                         // replacing $stylesheet until later, we need to replace it now
 700                         // with another variable name
 701                         if($this->theme['template_engine'] === 'smarty3')
 702                                 $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
 703                         else
 704                                 $stylesheet = '$stylesheet';
 705
 706                         $shortcut_icon = get_config("system", "shortcut_icon");
 707                         if ($shortcut_icon == "")
 708                                 $shortcut_icon = $this->get_baseurl()."/images/friendica-32.png";
 709
 710                         $touch_icon = get_config("system", "touch_icon");
 711                         if ($touch_icon == "")
 712                                 $touch_icon = $this->get_baseurl()."/images/friendica-128.png";
 713
 714                         $tpl = get_markup_template('head.tpl');
 715                         $this->page['htmlhead'] = replace_macros($tpl,array(
 716                                 '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
 717                                 '$local_user' => local_user(),
 718                                 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
 719                                 '$delitem' => t('Delete this item?'),
 720                                 '$comment' => t('Comment'),
 721                                 '$showmore' => t('show more'),
 722                                 '$showfewer' => t('show fewer'),
 723                                 '$update_interval' => $interval,
 724                                 '$shortcut_icon' => $shortcut_icon,
 725                                 '$touch_icon' => $touch_icon,
 726                                 '$stylesheet' => $stylesheet
 727                         )) . $this->page['htmlhead'];
 728                 }
 729
 730                 function init_page_end() {
 731                         if(!isset($this->page['end']))
 732                                 $this->page['end'] = '';
 733                         $tpl = get_markup_template('end.tpl');
 734                         $this->page['end'] = replace_macros($tpl,array(
 735                                 '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
 736                         )) . $this->page['end'];
 737                 }
 738
 739                 function set_curl_code($code) {
 740                         $this->curl_code = $code;
 741                 }
 742
 743                 function get_curl_code() {
 744                         return $this->curl_code;
 745                 }
 746
 747                 function set_curl_content_type($content_type) {
 748                         $this->curl_content_type = $content_type;
 749                 }
 750
 751                 function get_curl_content_type() {
 752                         return $this->curl_content_type;
 753                 }
 754
 755                 function set_curl_headers($headers) {
 756                         $this->curl_headers = $headers;
 757                 }
 758
 759                 function get_curl_headers() {
 760                         return $this->curl_headers;
 761                 }
 762
 763                 function get_cached_avatar_image($avatar_image){
 764                         if($this->cached_profile_image[$avatar_image])
 765                                 return $this->cached_profile_image[$avatar_image];
 766
 767                         $path_parts = explode("/",$avatar_image);
 768                         $common_filename = $path_parts[count($path_parts)-1];
 769
 770                         if($this->cached_profile_picdate[$common_filename]){
 771                                 $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
 772                         } else {
 773                                 $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like '%%/%s'",
 774                                         $common_filename);
 775                                 if(! count($r)){
 776                                         $this->cached_profile_image[$avatar_image] = $avatar_image;
 777                                 } else {
 778                                         $this->cached_profile_picdate[$common_filename] = "?rev=".urlencode($r[0]['picdate']);
 779                                         $this->cached_profile_image[$avatar_image] = $avatar_image.$this->cached_profile_picdate[$common_filename];
 780                                 }
 781                         }
 782                         return $this->cached_profile_image[$avatar_image];
 783                 }
 784
 785
 786                 /**
 787                  * register template engine class
 788                  * if $name is "", is used class static property $class::$name
 789                  * @param string $class
 790                  * @param string $name
 791                  */
 792                 function register_template_engine($class, $name = '') {
 793                         if ($name===""){
 794                                 $v = get_class_vars( $class );
 795                                 if(x($v,"name")) $name = $v['name'];
 796                         }
 797                         if ($name===""){
 798                                 echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
 799                                 killme();
 800                         }
 801                         $this->template_engines[$name] = $class;
 802                 }
 803
 804                 /**
 805                  * return template engine instance. If $name is not defined,
 806                  * return engine defined by theme, or default
 807                  *
 808                  * @param strin $name Template engine name
 809                  * @return object Template Engine instance
 810                  */
 811                 function template_engine($name = ''){
 812                         if ($name!=="") {
 813                                 $template_engine = $name;
 814                         } else {
 815                                 $template_engine = 'smarty3';
 816                                 if (x($this->theme, 'template_engine')) {
 817                                         $template_engine = $this->theme['template_engine'];
 818                                 }
 819                         }
 820
 821                         if (isset($this->template_engines[$template_engine])){
 822                                 if(isset($this->template_engine_instance[$template_engine])){
 823                                         return $this->template_engine_instance[$template_engine];
 824                                 } else {
 825                                         $class = $this->template_engines[$template_engine];
 826                                         $obj = new $class;
 827                                         $this->template_engine_instance[$template_engine] = $obj;
 828                                         return $obj;
 829                                 }
 830                         }
 831
 832                         echo "template engine <tt>$template_engine</tt> is not registered!\n"; killme();
 833                 }
 834
 835                 function get_template_engine() {
 836                         return $this->theme['template_engine'];
 837                 }
 838
 839                 function set_template_engine($engine = 'smarty3') {
 840                         $this->theme['template_engine'] = $engine;
 841                         /*
 842                         $this->theme['template_engine'] = 'smarty3';
 843
 844                         switch($engine) {
 845                                 case 'smarty3':
 846                                         if(is_writable('view/smarty3/'))
 847                                                 $this->theme['template_engine'] = 'smarty3';
 848                                         break;
 849                                 default:
 850                                         break;
 851                         }
 852                         */
 853                 }
 854
 855                 function get_template_ldelim($engine = 'smarty3') {
 856                         return $this->ldelim[$engine];
 857                 }
 858
 859                 function get_template_rdelim($engine = 'smarty3') {
 860                         return $this->rdelim[$engine];
 861                 }
 862
 863                 function save_timestamp($stamp, $value) {
 864                         $duration = (float)(microtime(true)-$stamp);
 865
 866                         $this->performance[$value] += (float)$duration;
 867                         $this->performance["marktime"] += (float)$duration;
 868                 }
 869
 870                 function mark_timestamp($mark) {
 871                         //$this->performance["markstart"] -= microtime(true) - $this->performance["marktime"];
 872                         $this->performance["markstart"] = microtime(true) - $this->performance["markstart"] - $this->performance["marktime"];
 873                 }
 874
 875         }
 876 }
 877
 878 // retrieve the App structure
 879 // useful in functions which require it but don't get it passed to them
 880
 881 if(! function_exists('get_app')) {
 882         function get_app() {
 883                 global $a;
 884                 return $a;
 885         }
 886 };
 887
 888
 889 // Multi-purpose function to check variable state.
 890 // Usage: x($var) or $x($array,'key')
 891 // returns false if variable/key is not set
 892 // if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
 893 // e.g. x('') or x(0) returns 0;
 894
 895 if(! function_exists('x')) {
 896         function x($s,$k = NULL) {
 897                 if($k != NULL) {
 898                         if((is_array($s)) && (array_key_exists($k,$s))) {
 899                                 if($s[$k])
 900                                         return (int) 1;
 901                                 return (int) 0;
 902                 }
 903                         return false;
 904                 }
 905                 else {
 906                         if(isset($s)) {
 907                                 if($s) {
 908                                         return (int) 1;
 909                                 }
 910                                 return (int) 0;
 911                         }
 912                         return false;
 913                 }
 914         }
 915 }
 916
 917 // called from db initialisation if db is dead.
 918
 919 if(! function_exists('system_unavailable')) {
 920         function system_unavailable() {
 921                 include('system_unavailable.php');
 922                 system_down();
 923                 killme();
 924         }
 925 }
 926
 927
 928
 929 function clean_urls() {
 930         global $a;
 931         //      if($a->config['system']['clean_urls'])
 932         return true;
 933         //      return false;
 934 }
 935
 936 function z_path() {
 937         global $a;
 938         $base = $a->get_baseurl();
 939         if(! clean_urls())
 940                 $base .= '/?q=';
 941         return $base;
 942 }
 943
 944 function z_root() {
 945         global $a;
 946         return $a->get_baseurl();
 947 }
 948
 949 function absurl($path) {
 950         if(strpos($path,'/') === 0)
 951                 return z_path() . $path;
 952         return $path;
 953 }
 954
 955 function is_ajax() {
 956         return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
 957 }
 958
 959 function check_db() {
 960
 961         $build = get_config('system','build');
 962         if(! x($build)) {
 963                 set_config('system','build',DB_UPDATE_VERSION);
 964                 $build = DB_UPDATE_VERSION;
 965         }
 966         if($build != DB_UPDATE_VERSION)
 967                 proc_run('php', 'include/dbupdate.php');
 968
 969 }
 970
 971
 972
 973
 974 // Sets the base url for use in cmdline programs which don't have
 975 // $_SERVER variables
 976
 977 if(! function_exists('check_url')) {
 978         function check_url(&$a) {
 979
 980                 $url = get_config('system','url');
 981
 982                 // if the url isn't set or the stored url is radically different
 983                 // than the currently visited url, store the current value accordingly.
 984                 // "Radically different" ignores common variations such as http vs https
 985                 // and www.example.com vs example.com.
 986                 // We will only change the url to an ip address if there is no existing setting
 987
 988                 if(! x($url))
 989                         $url = set_config('system','url',$a->get_baseurl());
 990                 if((! link_compare($url,$a->get_baseurl())) && (! preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/",$a->get_hostname)))
 991                         $url = set_config('system','url',$a->get_baseurl());
 992
 993                 return;
 994         }
 995 }
 996
 997
 998 // Automatic database updates
 999
1000 if(! function_exists('update_db')) {
1001         function update_db(&$a) {
1002
1003                 $build = get_config('system','build');
1004                 if(! x($build))
1005                         $build = set_config('system','build',DB_UPDATE_VERSION);
1006
1007                 if($build != DB_UPDATE_VERSION) {
1008                         $stored = intval($build);
1009                         $current = intval(DB_UPDATE_VERSION);
1010                         if(($stored < $current) && file_exists('update.php')) {
1011
1012                                 load_config('database');
1013
1014                                 // We're reporting a different version than what is currently installed.
1015                                 // Run any existing update scripts to bring the database up to current.
1016
1017                                 require_once('update.php');
1018
1019                                 // make sure that boot.php and update.php are the same release, we might be
1020                                 // updating right this very second and the correct version of the update.php
1021                                 // file may not be here yet. This can happen on a very busy site.
1022
1023                                 if(DB_UPDATE_VERSION == UPDATE_VERSION) {
1024
1025                                         // Compare the current structure with the defined structure
1026
1027                                         $t = get_config('database','dbupdate_'.DB_UPDATE_VERSION);
1028                                         if($t !== false)
1029                                                 return;
1030
1031                                         set_config('database','dbupdate_'.DB_UPDATE_VERSION, time());
1032
1033                                         require_once("include/dbstructure.php");
1034                                         $retval = update_structure(false, true);
1035                                         if($retval) {
1036                                                 //send the administrator an e-mail
1037                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
1038                                                 $email_msg = replace_macros($email_tpl, array(
1039                                                         '$sitename' => $a->config['sitename'],
1040                                                         '$siteurl' =>  $a->get_baseurl(),
1041                                                         '$update' => DB_UPDATE_VERSION,
1042                                                         '$error' => sprintf(t('Update %s failed. See error logs.'), DB_UPDATE_VERSION)
1043                                                 ));
1044                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
1045                                                 require_once('include/email.php');
1046                                                 $subject = email_header_encode($subject,'UTF-8');
1047                                                 mail($a->config['admin_email'], $subject, $email_msg,
1048                                                         'From: ' . 'Administrator' . '@' . $_SERVER['SERVER_NAME']."\n"
1049                                                         .'Content-type: text/plain; charset=UTF-8'."\n"
1050                                                         .'Content-transfer-encoding: 8bit');
1051                                                 //try the logger
1052                                                 logger("CRITICAL: Database structure update failed: ".$retval);
1053                                                 break;
1054                                         } else
1055                                                 set_config('database','dbupdate_'.DB_UPDATE_VERSION, 'success');
1056
1057                                         for($x = $stored; $x < $current; $x ++) {
1058                                                 if(function_exists('update_' . $x)) {
1059
1060                                                         // There could be a lot of processes running or about to run.
1061                                                         // We want exactly one process to run the update command.
1062                                                         // So store the fact that we're taking responsibility
1063                                                         // after first checking to see if somebody else already has.
1064
1065                                                         // If the update fails or times-out completely you may need to
1066                                                         // delete the config entry to try again.
1067
1068                                                         $t = get_config('database','update_' . $x);
1069                                                         if($t !== false)
1070                                                                 break;
1071                                                         set_config('database','update_' . $x, time());
1072
1073                                                         // call the specific update
1074
1075                                                         $func = 'update_' . $x;
1076                                                         $retval = $func();
1077                                                         if($retval) {
1078                                                                 //send the administrator an e-mail
1079                                                                 $email_tpl = get_intltext_template("update_fail_eml.tpl");
1080                                                                 $email_msg = replace_macros($email_tpl, array(
1081                                                                         '$sitename' => $a->config['sitename'],
1082                                                                         '$siteurl' =>  $a->get_baseurl(),
1083                                                                         '$update' => $x,
1084                                                                         '$error' => sprintf( t('Update %s failed. See error logs.'), $x)
1085                                                                 ));
1086                                                                 $subject=sprintf(t('Update Error at %s'), $a->get_baseurl());
1087                                                                 require_once('include/email.php');
1088                                                                 $subject = email_header_encode($subject,'UTF-8');
1089                                                                 mail($a->config['admin_email'], $subject, $email_msg,
1090                                                                         'From: ' . 'Administrator' . '@' . $_SERVER['SERVER_NAME'] . "\n"
1091                                                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
1092                                                                         . 'Content-transfer-encoding: 8bit' );
1093                                                                 //try the logger
1094                                                                 logger('CRITICAL: Update Failed: '. $x);
1095                                                                 break;
1096                                                         } else {
1097                                                                 set_config('database','update_' . $x, 'success');
1098                                                                 set_config('system','build', $x + 1);
1099                                                         }
1100                                                 } else {
1101                                                         set_config('database','update_' . $x, 'success');
1102                                                         set_config('system','build', $x + 1);
1103                                                 }
1104                                         }
1105                                 }
1106                         }
1107                 }
1108
1109                 return;
1110         }
1111 }
1112
1113
1114 if(! function_exists('check_plugins')) {
1115         function check_plugins(&$a) {
1116
1117                 /**
1118                  *
1119                  * Synchronise plugins:
1120                  *
1121                  * $a->config['system']['addon'] contains a comma-separated list of names
1122                  * of plugins/addons which are used on this system.
1123                  * Go through the database list of already installed addons, and if we have
1124                  * an entry, but it isn't in the config list, call the uninstall procedure
1125                  * and mark it uninstalled in the database (for now we'll remove it).
1126                  * Then go through the config list and if we have a plugin that isn't installed,
1127                  * call the install procedure and add it to the database.
1128                  *
1129                  */
1130
1131                 $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
1132                 if(count($r))
1133                         $installed = $r;
1134                 else
1135                         $installed = array();
1136
1137                 $plugins = get_config('system','addon');
1138                 $plugins_arr = array();
1139
1140                 if($plugins)
1141                         $plugins_arr = explode(',',str_replace(' ', '',$plugins));
1142
1143                 $a->plugins = $plugins_arr;
1144
1145                 $installed_arr = array();
1146
1147                 if(count($installed)) {
1148                         foreach($installed as $i) {
1149                                 if(! in_array($i['name'],$plugins_arr)) {
1150                                         uninstall_plugin($i['name']);
1151                                 }
1152                                 else {
1153                                         $installed_arr[] = $i['name'];
1154                                 }
1155                         }
1156                 }
1157
1158                 if(count($plugins_arr)) {
1159                         foreach($plugins_arr as $p) {
1160                                 if(! in_array($p,$installed_arr)) {
1161                                         install_plugin($p);
1162                                 }
1163                         }
1164                 }
1165
1166
1167                 load_hooks();
1168
1169                 return;
1170         }
1171 }
1172
1173 function get_guid($size=16) {
1174         $exists = true; // assume by default that we don't have a unique guid
1175         do {
1176                 $prefix = "";
1177                 while (strlen($prefix) < ($size - 13))
1178                         $prefix .= mt_rand();
1179
1180                 $s = substr(uniqid($prefix), -$size);
1181
1182                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
1183                 if(! count($r))
1184                         $exists = false;
1185         } while($exists);
1186         q("insert into guid (guid) values ('%s') ", dbesc($s));
1187         return $s;
1188 }
1189
1190 /*function get_guid($size=16) {
1191         $exists = true; // assume by default that we don't have a unique guid
1192         do {
1193                 $s = random_string($size);
1194                 $r = q("select id from guid where guid = '%s' limit 1", dbesc($s));
1195                 if(! count($r))
1196                         $exists = false;
1197         } while($exists);
1198         q("insert into guid ( guid ) values ( '%s' ) ", dbesc($s));
1199         return $s;
1200 }*/
1201
1202
1203 // wrapper for adding a login box. If $register == true provide a registration
1204 // link. This will most always depend on the value of $a->config['register_policy'].
1205 // returns the complete html for inserting into the page
1206
1207 if(! function_exists('login')) {
1208         function login($register = false, $hiddens=false) {
1209                 $a = get_app();
1210                 $o = "";
1211                 $reg = false;
1212                 if ($register) {
1213                         $reg = array(
1214                                 'title' => t('Create a New Account'),
1215                                 'desc' => t('Register')
1216                         );
1217                 }
1218
1219                 $noid = get_config('system','no_openid');
1220
1221                 $dest_url = $a->get_baseurl(true) . '/' . $a->query_string;
1222
1223                 if(local_user()) {
1224                         $tpl = get_markup_template("logout.tpl");
1225                 }
1226                 else {
1227                         $a->page['htmlhead'] .= replace_macros(get_markup_template("login_head.tpl"),array(
1228                                 '$baseurl'              => $a->get_baseurl(true)
1229                         ));
1230
1231                         $tpl = get_markup_template("login.tpl");
1232                         $_SESSION['return_url'] = $a->query_string;
1233                         $a->module = 'login';
1234                 }
1235
1236                 $o .= replace_macros($tpl, array(
1237
1238                         '$dest_url'     => $dest_url,
1239                         '$logout'       => t('Logout'),
1240                         '$login'        => t('Login'),
1241
1242                         '$lname'                => array('username', t('Nickname or Email address: ') , '', ''),
1243                         '$lpassword'    => array('password', t('Password: '), '', ''),
1244                         '$lremember'    => array('remember', t('Remember me'), 0,  ''),
1245
1246                         '$openid'               => !$noid,
1247                         '$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),
1248
1249                         '$hiddens'      => $hiddens,
1250
1251                         '$register'     => $reg,
1252
1253                         '$lostpass'     => t('Forgot your password?'),
1254                         '$lostlink'     => t('Password Reset'),
1255
1256                         '$tostitle'     => t('Website Terms of Service'),
1257                         '$toslink'      => t('terms of service'),
1258
1259                         '$privacytitle' => t('Website Privacy Policy'),
1260                         '$privacylink'  => t('privacy policy'),
1261
1262                 ));
1263
1264                 call_hooks('login_hook',$o);
1265
1266                 return $o;
1267         }
1268 }
1269
1270 // Used to end the current process, after saving session state.
1271
1272 if(! function_exists('killme')) {
1273         function killme() {
1274                 session_write_close();
1275                 exit;
1276         }
1277 }
1278
1279 // redirect to another URL and terminate this process.
1280
1281 if(! function_exists('goaway')) {
1282         function goaway($s) {
1283                 header("Location: $s");
1284                 killme();
1285         }
1286 }
1287
1288
1289 // Returns the uid of locally logged in user or false.
1290
1291 if(! function_exists('local_user')) {
1292         function local_user() {
1293                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
1294                         return intval($_SESSION['uid']);
1295                 return false;
1296         }
1297 }
1298
1299 // Returns contact id of authenticated site visitor or false
1300
1301 if(! function_exists('remote_user')) {
1302         function remote_user() {
1303                 if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
1304                         return intval($_SESSION['visitor_id']);
1305                 return false;
1306         }
1307 }
1308
1309 // contents of $s are displayed prominently on the page the next time
1310 // a page is loaded. Usually used for errors or alerts.
1311
1312 if(! function_exists('notice')) {
1313         /**
1314          * Show an error message to user.
1315          *
1316          * This function save text in session, to be shown to the user at next page load
1317          *
1318          * @param string $s - Text of notice
1319          */
1320         function notice($s) {
1321                 $a = get_app();
1322                 if(! x($_SESSION,'sysmsg'))     $_SESSION['sysmsg'] = array();
1323                 if($a->interactive)
1324                         $_SESSION['sysmsg'][] = $s;
1325         }
1326 }
1327 if(! function_exists('info')) {
1328         /**
1329          * Show an info message to user.
1330          *
1331          * This function save text in session, to be shown to the user at next page load
1332          *
1333          * @param string $s - Text of notice
1334          */
1335         function info($s) {
1336                 $a = get_app();
1337
1338                 if (local_user() AND get_pconfig(local_user(),'system','ignore_info'))
1339                         return;
1340
1341                 if(! x($_SESSION,'sysmsg_info')) $_SESSION['sysmsg_info'] = array();
1342                 if($a->interactive)
1343                         $_SESSION['sysmsg_info'][] = $s;
1344         }
1345 }
1346
1347
1348 // wrapper around config to limit the text length of an incoming message
1349
1350 if(! function_exists('get_max_import_size')) {
1351         function get_max_import_size() {
1352                 global $a;
1353                 return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
1354         }
1355 }
1356
1357
1358
1359 /**
1360  *
1361  * Function : profile_load
1362  * @parameter App    $a
1363  * @parameter string $nickname
1364  * @parameter int    $profile
1365  *
1366  * Summary: Loads a profile into the page sidebar.
1367  * The function requires a writeable copy of the main App structure, and the nickname
1368  * of a registered local account.
1369  *
1370  * If the viewer is an authenticated remote viewer, the profile displayed is the
1371  * one that has been configured for his/her viewing in the Contact manager.
1372  * Passing a non-zero profile ID can also allow a preview of a selected profile
1373  * by the owner.
1374  *
1375  * Profile information is placed in the App structure for later retrieval.
1376  * Honours the owner's chosen theme for display.
1377  *
1378  * IMPORTANT: Should only be run in the _init() functions of a module. That ensures that
1379  * the theme is chosen before the _init() function of a theme is run, which will usually
1380  * load a lot of theme-specific content
1381  *
1382  */
1383
1384 if(! function_exists('profile_load')) {
1385         function profile_load(&$a, $nickname, $profile = 0, $profiledata = array()) {
1386
1387                 $user = q("select uid from user where nickname = '%s' limit 1",
1388                         dbesc($nickname)
1389                 );
1390
1391                 if(! ($user && count($user))) {
1392                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1393                         notice( t('Requested account is not available.') . EOL );
1394                         $a->error = 404;
1395                         return;
1396                 }
1397
1398                 if(remote_user() && count($_SESSION['remote'])) {
1399                         foreach($_SESSION['remote'] as $visitor) {
1400                                 if($visitor['uid'] == $user[0]['uid']) {
1401                                         $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
1402                                                 intval($visitor['cid'])
1403                                         );
1404                                         if(count($r))
1405                                                 $profile = $r[0]['profile-id'];
1406                                         break;
1407                                 }
1408                         }
1409                 }
1410
1411                 $r = null;
1412
1413                 if($profile) {
1414                         $profile_int = intval($profile);
1415                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1416                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
1417                                         WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d and `contact`.`self` = 1 LIMIT 1",
1418                                         dbesc($nickname),
1419                                         intval($profile_int)
1420                         );
1421                 }
1422                 if((! $r) && (!  count($r))) {
1423                         $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
1424                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
1425                                         WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 and `contact`.`self` = 1 LIMIT 1",
1426                                         dbesc($nickname)
1427                         );
1428                 }
1429
1430                 if(($r === false) || (! count($r))) {
1431                         logger('profile error: ' . $a->query_string, LOGGER_DEBUG);
1432                         notice( t('Requested profile is not available.') . EOL );
1433                         $a->error = 404;
1434                         return;
1435                 }
1436
1437                 // fetch user tags if this isn't the default profile
1438
1439                 if(! $r[0]['is-default']) {
1440                         $x = q("select `pub_keywords` from `profile` where uid = %d and `is-default` = 1 limit 1",
1441                                         intval($r[0]['profile_uid'])
1442                         );
1443                         if($x && count($x))
1444                                 $r[0]['pub_keywords'] = $x[0]['pub_keywords'];
1445                 }
1446
1447                 $a->profile = $r[0];
1448
1449                 $a->profile['mobile-theme'] = get_pconfig($a->profile['profile_uid'], 'system', 'mobile_theme');
1450                 $a->profile['network'] = NETWORK_DFRN;
1451
1452                 $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
1453
1454                 if (!$profiledata)
1455                         $_SESSION['theme'] = $a->profile['theme'];
1456
1457                 $_SESSION['mobile-theme'] = $a->profile['mobile-theme'];
1458
1459                 /**
1460                  * load/reload current theme info
1461                  */
1462
1463                 $a->set_template_engine(); // reset the template engine to the default in case the user's theme doesn't specify one
1464
1465                 $theme_info_file = "view/theme/".current_theme()."/theme.php";
1466                 if (file_exists($theme_info_file)){
1467                         require_once($theme_info_file);
1468                 }
1469
1470                 if(! (x($a->page,'aside')))
1471                         $a->page['aside'] = '';
1472
1473                 if(local_user() && local_user() == $a->profile['uid'] && $profiledata) {
1474                         $a->page['aside'] .= replace_macros(get_markup_template('profile_edlink.tpl'),array(
1475                                 '$editprofile' => t('Edit profile'),
1476                                 '$profid' => $a->profile['id']
1477                         ));
1478                 }
1479
1480                 $block = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
1481
1482                 // To-Do:
1483                 // By now, the contact block isn't shown, when a different profile is given
1484                 // But: When this profile was on the same server, then we could display the contacts
1485                 if ($profiledata)
1486                         $a->page['aside'] .= profile_sidebar($profiledata, true);
1487                 else
1488                         $a->page['aside'] .= profile_sidebar($a->profile, $block);
1489
1490
1491                 /*if(! $block)
1492                  $a->page['aside'] .= contact_block();*/
1493
1494                 return;
1495         }
1496 }
1497
1498
1499 /**
1500  *
1501  * Function: profile_sidebar
1502  *
1503  * Formats a profile for display in the sidebar.
1504  * It is very difficult to templatise the HTML completely
1505  * because of all the conditional logic.
1506  *
1507  * @parameter: array $profile
1508  *
1509  * Returns HTML string stuitable for sidebar inclusion
1510  * Exceptions: Returns empty string if passed $profile is wrong type or not populated
1511  *
1512  */
1513
1514
1515 if(! function_exists('profile_sidebar')) {
1516         function profile_sidebar($profile, $block = 0) {
1517                 $a = get_app();
1518
1519                 $o = '';
1520                 $location = false;
1521                 $address = false;
1522                 $pdesc = true;
1523
1524                 if((! is_array($profile)) && (! count($profile)))
1525                         return $o;
1526
1527                 $profile['picdate'] = urlencode($profile['picdate']);
1528
1529                 if (($profile['network'] != "") AND ($profile['network'] != NETWORK_DFRN)) {
1530                         require_once('include/contact_selectors.php');
1531                         if ($profile['url'] != "")
1532                                 $profile['network_name'] = '<a href="'.$profile['url'].'">'.network_to_name($profile['network'])."</a>";
1533                         else
1534                                 $profile['network_name'] = network_to_name($profile['network']);
1535                 } else
1536                         $profile['network_name'] = "";
1537
1538                 call_hooks('profile_sidebar_enter', $profile);
1539
1540
1541                 // don't show connect link to yourself
1542                 $connect = (($profile['uid'] != local_user()) ? t('Connect')  : False);
1543
1544                 // don't show connect link to authenticated visitors either
1545                 if(remote_user() && count($_SESSION['remote'])) {
1546                         foreach($_SESSION['remote'] as $visitor) {
1547                                 if($visitor['uid'] == $profile['uid']) {
1548                                         $connect = false;
1549                                         break;
1550                                 }
1551                         }
1552                 }
1553
1554                 // Is the local user already connected to that user?
1555                 if ($connect AND local_user()) {
1556                         if (isset($profile["url"]))
1557                                 $profile_url = normalise_link($profile["url"]);
1558                         else
1559                                 $profile_url = normalise_link($a->get_baseurl()."/profile/".$profile["nickname"]);
1560
1561                         $r = q("SELECT * FROM `contact` WHERE NOT `pending` AND `uid` = %d AND `nurl` = '%s'",
1562                                 local_user(), $profile_url);
1563                         if (count($r))
1564                                 $connect = false;
1565                 }
1566
1567                 if ($connect AND ($profile['network'] != NETWORK_DFRN) AND !isset($profile['remoteconnect']))
1568                                 $connect = false;
1569
1570                 if (isset($profile['remoteconnect']))
1571                         $remoteconnect = $profile['remoteconnect'];
1572
1573                 if( get_my_url() && $profile['unkmail'] && ($profile['uid'] != local_user()) )
1574                         $wallmessage = t('Message');
1575                 else
1576                         $wallmessage = false;
1577
1578                 // show edit profile to yourself
1579                 if ($profile['uid'] == local_user() && feature_enabled(local_user(),'multi_profiles')) {
1580                         $profile['edit'] = array($a->get_baseurl(). '/profiles', t('Profiles'),"", t('Manage/edit profiles'));
1581                         $r = q("SELECT * FROM `profile` WHERE `uid` = %d",
1582                                         local_user());
1583
1584                         $profile['menu'] = array(
1585                                 'chg_photo' => t('Change profile photo'),
1586                                 'cr_new' => t('Create New Profile'),
1587                                 'entries' => array(),
1588                         );
1589
1590                         if(count($r)) {
1591
1592                                 foreach($r as $rr) {
1593                                         $profile['menu']['entries'][] = array(
1594                                                 'photo' => $rr['thumb'],
1595                                                 'id' => $rr['id'],
1596                                                 'alt' => t('Profile Image'),
1597                                                 'profile_name' => $rr['profile-name'],
1598                                                 'isdefault' => $rr['is-default'],
1599                                                 'visibile_to_everybody' =>  t('visible to everybody'),
1600                                                 'edit_visibility' => t('Edit visibility'),
1601
1602                                         );
1603                                 }
1604
1605
1606                         }
1607                 }
1608                 if ($profile['uid'] == local_user() && !feature_enabled(local_user(),'multi_profiles')) {
1609                         $profile['edit'] = array($a->get_baseurl(). '/profiles/'.$profile['id'], t('Edit profile'),"", t('Edit profile'));
1610                         $profile['menu'] = array(
1611                                 'chg_photo' => t('Change profile photo'),
1612                                 'cr_new' => null,
1613                                 'entries' => array(),
1614                         );
1615                 }
1616
1617                 if((x($profile,'address') == 1)
1618                                 || (x($profile,'locality') == 1)
1619                                 || (x($profile,'region') == 1)
1620                                 || (x($profile,'postal-code') == 1)
1621                                 || (x($profile,'country-name') == 1))
1622                         $location = t('Location:');
1623
1624                 $gender = ((x($profile,'gender') == 1) ? t('Gender:') : False);
1625
1626
1627                 $marital = ((x($profile,'marital') == 1) ?  t('Status:') : False);
1628
1629                 $homepage = ((x($profile,'homepage') == 1) ?  t('Homepage:') : False);
1630
1631                 if(($profile['hidewall'] || $block) && (! local_user()) && (! remote_user())) {
1632                         $location = $pdesc = $gender = $marital = $homepage = False;
1633                 }
1634
1635                 $firstname = ((strpos($profile['name'],' '))
1636                                 ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']);
1637                 $lastname = (($firstname === $profile['name']) ? '' : trim(substr($profile['name'],strlen($firstname))));
1638
1639                 $diaspora = array(
1640                         'podloc' => $a->get_baseurl(),
1641                         'searchable' => (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false' ),
1642                         'nickname' => $profile['nickname'],
1643                         'fullname' => $profile['name'],
1644                         'firstname' => $firstname,
1645                         'lastname' => $lastname,
1646                         'photo300' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/300/' . $profile['uid'] . '.jpg'),
1647                         'photo100' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/100/' . $profile['uid'] . '.jpg'),
1648                         'photo50' => $a->get_cached_avatar_image($a->get_baseurl() . '/photo/custom/50/'  . $profile['uid'] . '.jpg'),
1649                 );
1650
1651                 if (!$block){
1652                         $contact_block = contact_block();
1653                 }
1654
1655
1656                 $p = array();
1657                 foreach($profile as $k => $v) {
1658                         $k = str_replace('-','_',$k);
1659                         $p[$k] = $v;
1660                 }
1661
1662                 if($a->theme['template_engine'] === 'internal')
1663                         $location = template_escape($location);
1664
1665
1666                 $tpl = get_markup_template('profile_vcard.tpl');
1667                 $o .= replace_macros($tpl, array(
1668                         '$profile' => $p,
1669                         '$connect'  => $connect,
1670                         '$remoteconnect'  => $remoteconnect,
1671                         '$wallmessage' => $wallmessage,
1672                         '$location' => $location,
1673                         '$gender'   => $gender,
1674                         '$pdesc'        => $pdesc,
1675                         '$marital'  => $marital,
1676                         '$homepage' => $homepage,
1677                         '$network' =>  t('Network:'),
1678                         '$diaspora' => $diaspora,
1679                         '$contact_block' => $contact_block,
1680                 ));
1681
1682
1683                 $arr = array('profile' => &$profile, 'entry' => &$o);
1684
1685                 call_hooks('profile_sidebar', $arr);
1686
1687                 return $o;
1688         }
1689 }
1690
1691
1692 if(! function_exists('get_birthdays')) {
1693         function get_birthdays() {
1694
1695                 $a = get_app();
1696                 $o = '';
1697
1698                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1699                         return $o;
1700
1701 //              $mobile_detect = new Mobile_Detect();
1702 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1703
1704 //              if($is_mobile)
1705 //                      return $o;
1706
1707                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1708                 $bd_short = t('F d');
1709
1710                 $r = q("SELECT `event`.*, `event`.`id` AS `eid`, `contact`.* FROM `event`
1711                                 INNER JOIN `contact` ON `contact`.`id` = `event`.`cid`
1712                                 WHERE `event`.`uid` = %d AND `type` = 'birthday' AND `start` < '%s' AND `finish` > '%s'
1713                                 ORDER BY `start` ASC ",
1714                                 intval(local_user()),
1715                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1716                                 dbesc(datetime_convert('UTC','UTC','now'))
1717                 );
1718
1719                 if($r && count($r)) {
1720                         $total = 0;
1721                         $now = strtotime('now');
1722                         $cids = array();
1723
1724                         $istoday = false;
1725                         foreach($r as $rr) {
1726                                 if(strlen($rr['name']))
1727                                         $total ++;
1728                                 if((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now))
1729                                         $istoday = true;
1730                         }
1731                         $classtoday = $istoday ? ' birthday-today ' : '';
1732                         if($total) {
1733                                 foreach($r as &$rr) {
1734                                         if(! strlen($rr['name']))
1735                                                 continue;
1736
1737                                         // avoid duplicates
1738
1739                                         if(in_array($rr['cid'],$cids))
1740                                                 continue;
1741                                         $cids[] = $rr['cid'];
1742
1743                                         $today = (((strtotime($rr['start'] . ' +00:00') < $now) && (strtotime($rr['finish'] . ' +00:00') > $now)) ? true : false);
1744                                         $sparkle = '';
1745                                         $url = $rr['url'];
1746                                         if($rr['network'] === NETWORK_DFRN) {
1747                                                 $sparkle = " sparkle";
1748                                                 $url = $a->get_baseurl() . '/redir/'  . $rr['cid'];
1749                                         }
1750
1751                                         $rr['link'] = $url;
1752                                         $rr['title'] = $rr['name'];
1753                                         $rr['date'] = day_translate(datetime_convert('UTC', $a->timezone, $rr['start'], $rr['adjust'] ? $bd_format : $bd_short)) . (($today) ?  ' ' . t('[today]') : '');
1754                                         $rr['startime'] = Null;
1755                                         $rr['today'] = $today;
1756
1757                                 }
1758                         }
1759                 }
1760                 $tpl = get_markup_template("birthdays_reminder.tpl");
1761                 return replace_macros($tpl, array(
1762                         '$baseurl' => $a->get_baseurl(),
1763                         '$classtoday' => $classtoday,
1764                         '$count' => $total,
1765                         '$event_reminders' => t('Birthday Reminders'),
1766                         '$event_title' => t('Birthdays this week:'),
1767                         '$events' => $r,
1768                         '$lbr' => '{',  // raw brackets mess up if/endif macro processing
1769                         '$rbr' => '}'
1770
1771                 ));
1772         }
1773 }
1774
1775
1776 if(! function_exists('get_events')) {
1777         function get_events() {
1778
1779                 require_once('include/bbcode.php');
1780
1781                 $a = get_app();
1782
1783                 if(! local_user() || $a->is_mobile || $a->is_tablet)
1784                         return $o;
1785
1786
1787 //              $mobile_detect = new Mobile_Detect();
1788 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1789
1790 //              if($is_mobile)
1791 //                      return $o;
1792
1793                 $bd_format = t('g A l F d') ; // 8 AM Friday January 18
1794                 $bd_short = t('F d');
1795
1796                 $r = q("SELECT `event`.* FROM `event`
1797                                 WHERE `event`.`uid` = %d AND `type` != 'birthday' AND `start` < '%s' AND `start` > '%s'
1798                                 ORDER BY `start` ASC ",
1799                                 intval(local_user()),
1800                                 dbesc(datetime_convert('UTC','UTC','now + 6 days')),
1801                                 dbesc(datetime_convert('UTC','UTC','now - 1 days'))
1802                 );
1803
1804                 if($r && count($r)) {
1805                         $now = strtotime('now');
1806                         $istoday = false;
1807                         foreach($r as $rr) {
1808                                 if(strlen($rr['name']))
1809                                         $total ++;
1810
1811                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start'],'Y-m-d');
1812                                 if($strt === datetime_convert('UTC',$a->timezone,'now','Y-m-d'))
1813                                         $istoday = true;
1814                         }
1815                         $classtoday = (($istoday) ? 'event-today' : '');
1816
1817
1818                         foreach($r as &$rr) {
1819                                 if($rr['adjust'])
1820                                         $md = datetime_convert('UTC',$a->timezone,$rr['start'],'Y/m');
1821                                 else
1822                                         $md = datetime_convert('UTC','UTC',$rr['start'],'Y/m');
1823                                 $md .= "/#link-".$rr['id'];
1824
1825                                 $title = substr(strip_tags(bbcode($rr['desc'])),0,32) . '... ';
1826                                 if(! $title)
1827                                         $title = t('[No description]');
1828
1829                                 $strt = datetime_convert('UTC',$rr['convert'] ? $a->timezone : 'UTC',$rr['start']);
1830                                 $today = ((substr($strt,0,10) === datetime_convert('UTC',$a->timezone,'now','Y-m-d')) ? true : false);
1831
1832                                 $rr['link'] = $md;
1833                                 $rr['title'] = $title;
1834                                 $rr['date'] = day_translate(datetime_convert('UTC', $rr['adjust'] ? $a->timezone : 'UTC', $rr['start'], $bd_format)) . (($today) ?  ' ' . t('[today]') : '');
1835                                 $rr['startime'] = $strt;
1836                                 $rr['today'] = $today;
1837                         }
1838                 }
1839
1840                 $tpl = get_markup_template("events_reminder.tpl");
1841                 return replace_macros($tpl, array(
1842                         '$baseurl' => $a->get_baseurl(),
1843                         '$classtoday' => $classtoday,
1844                         '$count' => count($r),
1845                         '$event_reminders' => t('Event Reminders'),
1846                         '$event_title' => t('Events this week:'),
1847                         '$events' => $r,
1848                 ));
1849         }
1850 }
1851
1852
1853 /**
1854  *
1855  * Wrap calls to proc_close(proc_open()) and call hook
1856  * so plugins can take part in process :)
1857  *
1858  * args:
1859  * $cmd program to run
1860  *  next args are passed as $cmd command line
1861  *
1862  * e.g.: proc_run("ls","-la","/tmp");
1863  *
1864  * $cmd and string args are surrounded with ""
1865  */
1866
1867 if(! function_exists('proc_run')) {
1868         function proc_run($cmd){
1869
1870                 $a = get_app();
1871
1872                 $args = func_get_args();
1873
1874                 $newargs = array();
1875                 if(! count($args))
1876                         return;
1877
1878                 // expand any arrays
1879
1880                 foreach($args as $arg) {
1881                         if(is_array($arg)) {
1882                                 foreach($arg as $n) {
1883                                         $newargs[] = $n;
1884                                 }
1885                         }
1886                         else
1887                                 $newargs[] = $arg;
1888                 }
1889
1890                 $args = $newargs;
1891
1892                 $arr = array('args' => $args, 'run_cmd' => true);
1893
1894                 call_hooks("proc_run", $arr);
1895                 if(! $arr['run_cmd'])
1896                         return;
1897
1898                 if(count($args) && $args[0] === 'php')
1899                         $args[0] = ((x($a->config,'php_path')) && (strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
1900
1901         // add baseurl to args. cli scripts can't construct it
1902         $args[] = $a->get_baseurl();
1903
1904         for($x = 0; $x < count($args); $x ++)
1905                         $args[$x] = escapeshellarg($args[$x]);
1906
1907
1908
1909                 $cmdline = implode($args," ");
1910                 if(get_config('system','proc_windows'))
1911                         proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
1912                 else
1913                         proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
1914         }
1915 }
1916
1917 if(! function_exists('current_theme')) {
1918         function current_theme(){
1919                 $app_base_themes = array('duepuntozero', 'dispy', 'quattro');
1920
1921                 $a = get_app();
1922
1923 //              $mobile_detect = new Mobile_Detect();
1924 //              $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
1925                 $is_mobile = $a->is_mobile || $a->is_tablet;
1926
1927                 if($is_mobile) {
1928                         if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
1929                                 $system_theme = '';
1930                                 $theme_name = '';
1931                         }
1932                         else {
1933                                 $system_theme = ((isset($a->config['system']['mobile-theme'])) ? $a->config['system']['mobile-theme'] : '');
1934                                 $theme_name = ((isset($_SESSION) && x($_SESSION,'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
1935
1936                                 if($theme_name === '---') {
1937                                         // user has selected to have the mobile theme be the same as the normal one
1938                                         $system_theme = '';
1939                                         $theme_name = '';
1940                                 }
1941                         }
1942                 }
1943                 if(!$is_mobile || ($system_theme === '' && $theme_name === '')) {
1944                         $system_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : '');
1945                         $theme_name = ((isset($_SESSION) && x($_SESSION,'theme')) ? $_SESSION['theme'] : $system_theme);
1946                 }
1947
1948                 if($theme_name &&
1949                                 (file_exists('view/theme/' . $theme_name . '/style.css') ||
1950                                                 file_exists('view/theme/' . $theme_name . '/style.php')))
1951                         return($theme_name);
1952
1953                 foreach($app_base_themes as $t) {
1954                         if(file_exists('view/theme/' . $t . '/style.css')||
1955                                         file_exists('view/theme/' . $t . '/style.php'))
1956                                 return($t);
1957                 }
1958
1959                 $fallback = array_merge(glob('view/theme/*/style.css'),glob('view/theme/*/style.php'));
1960                 if(count($fallback))
1961                         return (str_replace('view/theme/','', substr($fallback[0],0,-10)));
1962
1963         }
1964 }
1965
1966 /*
1967  * Return full URL to theme which is currently in effect.
1968 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1969 */
1970 if(! function_exists('current_theme_url')) {
1971         function current_theme_url() {
1972                 global $a;
1973                 $t = current_theme();
1974                 if (file_exists('view/theme/' . $t . '/style.php'))
1975                         return($a->get_baseurl() . '/view/theme/' . $t . '/style.pcss');
1976                 return($a->get_baseurl() . '/view/theme/' . $t . '/style.css');
1977         }
1978 }
1979
1980 if(! function_exists('feed_birthday')) {
1981         function feed_birthday($uid,$tz) {
1982
1983                 /**
1984                  *
1985                  * Determine the next birthday, but only if the birthday is published
1986                  * in the default profile. We _could_ also look for a private profile that the
1987                  * recipient can see, but somebody could get mad at us if they start getting
1988                  * public birthday greetings when they haven't made this info public.
1989                  *
1990                  * Assuming we are able to publish this info, we are then going to convert
1991                  * the start time from the owner's timezone to UTC.
1992                  *
1993                  * This will potentially solve the problem found with some social networks
1994                  * where birthdays are converted to the viewer's timezone and salutations from
1995                  * elsewhere in the world show up on the wrong day. We will convert it to the
1996                  * viewer's timezone also, but first we are going to convert it from the birthday
1997                  * person's timezone to GMT - so the viewer may find the birthday starting at
1998                  * 6:00PM the day before, but that will correspond to midnight to the birthday person.
1999                  *
2000                  */
2001
2002
2003                 $birthday = '';
2004
2005                 if(! strlen($tz))
2006                         $tz = 'UTC';
2007
2008                 $p = q("SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
2009                                 intval($uid)
2010                 );
2011
2012                 if($p && count($p)) {
2013                         $tmp_dob = substr($p[0]['dob'],5);
2014                         if(intval($tmp_dob)) {
2015                                 $y = datetime_convert($tz,$tz,'now','Y');
2016                                 $bd = $y . '-' . $tmp_dob . ' 00:00';
2017                                 $t_dob = strtotime($bd);
2018                                 $now = strtotime(datetime_convert($tz,$tz,'now'));
2019                                 if($t_dob < $now)
2020                                         $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
2021                                 $birthday = datetime_convert($tz,'UTC',$bd,ATOM_TIME);
2022                         }
2023                 }
2024
2025                 return $birthday;
2026         }
2027 }
2028
2029 if(! function_exists('is_site_admin')) {
2030         function is_site_admin() {
2031                 $a = get_app();
2032
2033                 $adminlist = explode(",", str_replace(" ", "", $a->config['admin_email']));
2034
2035                 //if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
2036                 if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && in_array($a->user['email'], $adminlist))
2037                         return true;
2038                 return false;
2039         }
2040 }
2041
2042
2043 if(! function_exists('load_contact_links')) {
2044         function load_contact_links($uid) {
2045
2046                 $a = get_app();
2047
2048                 $ret = array();
2049
2050                 if(! $uid || x($a->contacts,'empty'))
2051                         return;
2052
2053                 $r = q("SELECT `id`,`network`,`url`,`thumb` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 ",
2054                                 intval($uid)
2055                 );
2056                 if(count($r)) {
2057                         foreach($r as $rr){
2058                                 $url = normalise_link($rr['url']);
2059                                 $ret[$url] = $rr;
2060                         }
2061                 }
2062                 else
2063                         $ret['empty'] = true;
2064                 $a->contacts = $ret;
2065                 return;
2066         }
2067 }
2068
2069 if(! function_exists('profile_tabs')){
2070         function profile_tabs($a, $is_owner=False, $nickname=Null){
2071                 //echo "<pre>"; var_dump($a->user); killme();
2072
2073                 if (is_null($nickname))
2074                         $nickname  = $a->user['nickname'];
2075
2076                 if(x($_GET,'tab'))
2077                         $tab = notags(trim($_GET['tab']));
2078
2079                 $url = $a->get_baseurl() . '/profile/' . $nickname;
2080
2081                 $tabs = array(
2082                         array(
2083                                 'label'=>t('Status'),
2084                                 'url' => $url,
2085                                 'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
2086                                 'title' => t('Status Messages and Posts'),
2087                                 'id' => 'status-tab',
2088                         ),
2089                         array(
2090                                 'label' => t('Profile'),
2091                                 'url'   => $url.'/?tab=profile',
2092                                 'sel'   => ((isset($tab) && $tab=='profile')?'active':''),
2093                                 'title' => t('Profile Details'),
2094                                 'id' => 'profile-tab',
2095                         ),
2096                         array(
2097                                 'label' => t('Photos'),
2098                                 'url'   => $a->get_baseurl() . '/photos/' . $nickname,
2099                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
2100                                 'title' => t('Photo Albums'),
2101                                 'id' => 'photo-tab',
2102                         ),
2103                         array(
2104                                 'label' => t('Videos'),
2105                                 'url'   => $a->get_baseurl() . '/videos/' . $nickname,
2106                                 'sel'   => ((!isset($tab)&&$a->argv[0]=='videos')?'active':''),
2107                                 'title' => t('Videos'),
2108                                 'id' => 'video-tab',
2109                         ),
2110                 );
2111
2112                 if ($is_owner){
2113                         $tabs[] = array(
2114                                 'label' => t('Events'),
2115                                 'url'   => $a->get_baseurl() . '/events',
2116                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
2117                                 'title' => t('Events and Calendar'),
2118                                 'id' => 'events-tab',
2119                         );
2120                         $tabs[] = array(
2121                                 'label' => t('Personal Notes'),
2122                                 'url'   => $a->get_baseurl() . '/notes',
2123                                 'sel'   =>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
2124                                 'title' => t('Only You Can See This'),
2125                                 'id' => 'notes-tab',
2126                         );
2127                 }
2128
2129
2130                 $arr = array('is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs);
2131                 call_hooks('profile_tabs', $arr);
2132
2133                 $tpl = get_markup_template('common_tabs.tpl');
2134
2135                 return replace_macros($tpl,array('$tabs' => $arr['tabs']));
2136         }
2137 }
2138
2139 function get_my_url() {
2140         if(x($_SESSION,'my_url'))
2141                 return $_SESSION['my_url'];
2142         return false;
2143 }
2144
2145 function zrl_init(&$a) {
2146         $tmp_str = get_my_url();
2147         if(validate_url($tmp_str)) {
2148                 proc_run('php','include/gprobe.php',bin2hex($tmp_str));
2149                 $arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
2150                 call_hooks('zrl_init',$arr);
2151         }
2152 }
2153
2154 function zrl($s,$force = false) {
2155         if(! strlen($s))
2156                 return $s;
2157         if((! strpos($s,'/profile/')) && (! $force))
2158                 return $s;
2159         if($force && substr($s,-1,1) !== '/')
2160                 $s = $s . '/';
2161         $achar = strpos($s,'?') ? '&' : '?';
2162         $mine = get_my_url();
2163         if($mine and ! link_compare($mine,$s))
2164                 return $s . $achar . 'zrl=' . urlencode($mine);
2165         return $s;
2166 }
2167
2168 /**
2169 * returns querystring as string from a mapped array
2170 *
2171 * @param params Array
2172 * @return string
2173 */
2174 function build_querystring($params, $name=null) {
2175     $ret = "";
2176     foreach($params as $key=>$val) {
2177         if(is_array($val)) {
2178             if($name==null) {
2179                 $ret .= build_querystring($val, $key);
2180             } else {
2181                 $ret .= build_querystring($val, $name."[$key]");
2182             }
2183         } else {
2184             $val = urlencode($val);
2185             if($name!=null) {
2186                 $ret.=$name."[$key]"."=$val&";
2187             } else {
2188                 $ret.= "$key=$val&";
2189             }
2190         }
2191     }
2192     return $ret;
2193 }
2194
2195 function explode_querystring($query) {
2196         $arg_st = strpos($query, '?');
2197         if($arg_st !== false) {
2198                 $base = substr($query, 0, $arg_st);
2199                 $arg_st += 1;
2200         }
2201         else {
2202                 $base = '';
2203                 $arg_st = 0;
2204         }
2205
2206         $args = explode('&', substr($query, $arg_st));
2207         foreach($args as $k=>$arg) {
2208                 if($arg === '')
2209                         unset($args[$k]);
2210         }
2211         $args = array_values($args);
2212
2213         if(!$base) {
2214                 $base = $args[0];
2215                 unset($args[0]);
2216                 $args = array_values($args);
2217         }
2218
2219         return array(
2220                 'base' => $base,
2221                 'args' => $args,
2222         );
2223 }
2224
2225 /**
2226 * Returns the complete URL of the current page, e.g.: http(s)://something.com/network
2227 *
2228 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
2229 */
2230 function curPageURL() {
2231         $pageURL = 'http';
2232         if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
2233         $pageURL .= "://";
2234         if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
2235                 $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
2236         } else {
2237                 $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
2238         }
2239         return $pageURL;
2240 }
2241
2242 function random_digits($digits) {
2243         $rn = '';
2244         for($i = 0; $i < $digits; $i++) {
2245                 $rn .= rand(0,9);
2246         }
2247         return $rn;
2248 }
2249
2250 function get_cachefile($file, $writemode = true) {
2251         $cache = get_itemcachepath();
2252
2253         if ((! $cache) || (! is_dir($cache)))
2254                 return("");
2255
2256         $subfolder = $cache."/".substr($file, 0, 2);
2257
2258         $cachepath = $subfolder."/".$file;
2259
2260         if ($writemode) {
2261                 if (!is_dir($subfolder)) {
2262                         mkdir($subfolder);
2263                         chmod($subfolder, 0777);
2264                 }
2265         }
2266
2267         return($cachepath);
2268 }
2269
2270 function clear_cache($basepath = "", $path = "") {
2271         if ($path == "") {
2272                 $basepath = get_itemcachepath();
2273                 $path = $basepath;
2274         }
2275
2276         if (($path == "") OR (!is_dir($path)))
2277                 return;
2278
2279         if (substr(realpath($path), 0, strlen($basepath)) != $basepath)
2280                 return;
2281
2282         $cachetime = (int)get_config('system','itemcache_duration');
2283         if ($cachetime == 0)
2284                 $cachetime = 86400;
2285
2286         if (is_writable($path)){
2287         if ($dh = opendir($path)) {
2288                 while (($file = readdir($dh)) !== false) {
2289                         $fullpath = $path."/".$file;
2290                         if ((filetype($fullpath) == "dir") and ($file != ".") and ($file != ".."))
2291                                 clear_cache($basepath, $fullpath);
2292                         if ((filetype($fullpath) == "file") and (filectime($fullpath) < (time() - $cachetime)))
2293                                 unlink($fullpath);
2294                 }
2295                 closedir($dh);
2296         }
2297         }
2298 }
2299
2300 function get_itemcachepath() {
2301         // Checking, if the cache is deactivated
2302         $cachetime = (int)get_config('system','itemcache_duration');
2303         if ($cachetime < 0)
2304                 return "";
2305
2306         $itemcache = get_config('system','itemcache');
2307         if (($itemcache != "") AND is_dir($itemcache) AND is_writable($itemcache))
2308                 return($itemcache);
2309
2310         $temppath = get_temppath();
2311
2312         if ($temppath != "") {
2313                 $itemcache = $temppath."/itemcache";
2314                 mkdir($itemcache);
2315
2316                 if (is_dir($itemcache) AND is_writable($itemcache)) {
2317                         set_config("system", "itemcache", $itemcache);
2318                         return($itemcache);
2319                 }
2320         }
2321         return "";
2322 }
2323
2324 function get_lockpath() {
2325         $lockpath = get_config('system','lockpath');
2326         if (($lockpath != "") AND is_dir($lockpath) AND is_writable($lockpath))
2327                 return($lockpath);
2328
2329         $temppath = get_temppath();
2330
2331         if ($temppath != "") {
2332                 $lockpath = $temppath."/lock";
2333                 mkdir($lockpath);
2334
2335                 if (is_dir($lockpath) AND is_writable($lockpath)) {
2336                         set_config("system", "lockpath", $lockpath);
2337                         return($lockpath);
2338                 }
2339         }
2340         return "";
2341 }
2342
2343 function get_temppath() {
2344         $temppath = get_config("system","temppath");
2345         if (($temppath != "") AND is_dir($temppath) AND is_writable($temppath))
2346                 return($temppath);
2347
2348         $temppath = sys_get_temp_dir();
2349         if (($temppath != "") AND is_dir($temppath) AND is_writable($temppath)) {
2350                 set_config("system", "temppath", $temppath);
2351                 return($temppath);
2352         }
2353
2354         return("");
2355 }
2356
2357 function set_template_engine(&$a, $engine = 'internal') {
2358 // This function is no longer necessary, but keep it as a wrapper to the class method
2359 // to avoid breaking themes again unnecessarily
2360
2361         $a->set_template_engine($engine);
2362 }
2363
2364 if(!function_exists('exif_imagetype')) {
2365         function exif_imagetype($file) {
2366                 $size = getimagesize($file);
2367                 return($size[2]);
2368         }
2369 }