include/event.php

   1 <?php
   2 /**
   3  * @file include/event.php
   4  * @brief functions specific to event handling
   5  */
   6
   7 require_once('include/bbcode.php');
   8 require_once('include/map.php');
   9 require_once('include/datetime.php');
  10
  11 function format_event_html($ev, $simple = false) {
  12
  13         if(! ((is_array($ev)) && count($ev)))
  14                 return '';
  15
  16         $bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
  17
  18         $event_start = (($ev['adjust']) ? day_translate(datetime_convert('UTC', date_default_timezone_get(),
  19                         $ev['start'] , $bd_format ))
  20                         :  day_translate(datetime_convert('UTC', 'UTC',
  21                         $ev['start'] , $bd_format)));
  22
  23         $event_end = (($ev['adjust']) ? day_translate(datetime_convert('UTC', date_default_timezone_get(),
  24                                 $ev['finish'] , $bd_format ))
  25                                 :  day_translate(datetime_convert('UTC', 'UTC',
  26                                 $ev['finish'] , $bd_format )));
  27
  28         if ($simple) {
  29                 $o = "<h3>".bbcode($ev['summary'])."</h3>";
  30
  31                 $o .= "<p>".bbcode($ev['desc'])."</p>";
  32
  33                 $o .= "<h4>".t('Starts:')."</h4><p>".$event_start."</p>";
  34
  35                 if(! $ev['nofinish'])
  36                         $o .= "<h4>".t('Finishes:')."</h4><p>".$event_end."</p>";
  37
  38                 if(strlen($ev['location']))
  39                         $o .= "<h4>".t('Location:')."</h4><p>".$ev['location']."</p>";
  40
  41                 return $o;
  42         }
  43
  44         $o = '<div class="vevent">' . "\r\n";
  45
  46
  47         $o .= '<p class="summary event-summary">' . bbcode($ev['summary']) .  '</p>' . "\r\n";
  48
  49         $o .= '<p class="description event-description">' . bbcode($ev['desc']) .  '</p>' . "\r\n";
  50
  51         $o .= '<p class="event-start">' . t('Starts:') . ' <abbr class="dtstart" title="'
  52                 . datetime_convert('UTC','UTC',$ev['start'], (($ev['adjust']) ? ATOM_TIME : 'Y-m-d\TH:i:s' ))
  53                 . '" >'.$event_start
  54                 . '</abbr></p>' . "\r\n";
  55
  56         if(! $ev['nofinish'])
  57                 $o .= '<p class="event-end" >' . t('Finishes:') . ' <abbr class="dtend" title="'
  58                         . datetime_convert('UTC','UTC',$ev['finish'], (($ev['adjust']) ? ATOM_TIME : 'Y-m-d\TH:i:s' ))
  59                         . '" >'.$event_end
  60                         . '</abbr></p>'  . "\r\n";
  61
  62         if(strlen($ev['location'])){
  63                 $o .= '<p class="event-location"> ' . t('Location:') . ' <span class="location">'
  64                         . bbcode($ev['location'])
  65                         . '</span></p>' . "\r\n";
  66
  67                 if (strpos($ev['location'], "[map") !== False) {
  68                         $map = generate_named_map($ev['location']);
  69                         if ($map!==$ev['location']) $o.=$map;
  70                 }
  71
  72         }
  73
  74         $o .= '</div>' . "\r\n";
  75         return $o;
  76 }
  77
  78 /*
  79 function parse_event($h) {
  80
  81         require_once('include/Scrape.php');
  82         require_once('include/html2bbcode');
  83
  84         $h = '<html><body>' . $h . '</body></html>';
  85
  86         $ret = array();
  87
  88
  89         try {
  90                 $dom = HTML5_Parser::parse($h);
  91         } catch (DOMException $e) {
  92                 logger('parse_event: parse error: ' . $e);
  93         }
  94
  95         if(! $dom)
  96                 return $ret;
  97
  98         $items = $dom->getElementsByTagName('*');
  99
 100         foreach($items as $item) {
 101                 if(attribute_contains($item->getAttribute('class'), 'vevent')) {
 102                         $level2 = $item->getElementsByTagName('*');
 103                         foreach($level2 as $x) {
 104                                 if(attribute_contains($x->getAttribute('class'),'dtstart') && $x->getAttribute('title')) {
 105                                         $ret['start'] = $x->getAttribute('title');
 106                                         if(! strpos($ret['start'],'Z'))
 107                                                 $ret['adjust'] = true;
 108                                 }
 109                                 if(attribute_contains($x->getAttribute('class'),'dtend') && $x->getAttribute('title'))
 110                                         $ret['finish'] = $x->getAttribute('title');
 111
 112                                 if(attribute_contains($x->getAttribute('class'),'description'))
 113                                         $ret['desc'] = $x->textContent;
 114                                 if(attribute_contains($x->getAttribute('class'),'location'))
 115                                         $ret['location'] = $x->textContent;
 116                         }
 117                 }
 118         }
 119
 120         // sanitise
 121
 122         if((x($ret,'desc')) && ((strpos($ret['desc'],'<') !== false) || (strpos($ret['desc'],'>') !== false))) {
 123                 $config = HTMLPurifier_Config::createDefault();
 124                 $config->set('Cache.DefinitionImpl', null);
 125                 $purifier = new HTMLPurifier($config);
 126                 $ret['desc'] = html2bbcode($purifier->purify($ret['desc']));
 127         }
 128
 129         if((x($ret,'location')) && ((strpos($ret['location'],'<') !== false) || (strpos($ret['location'],'>') !== false))) {
 130                 $config = HTMLPurifier_Config::createDefault();
 131                 $config->set('Cache.DefinitionImpl', null);
 132                 $purifier = new HTMLPurifier($config);
 133                 $ret['location'] = html2bbcode($purifier->purify($ret['location']));
 134         }
 135
 136         if(x($ret,'start'))
 137                 $ret['start'] = datetime_convert('UTC','UTC',$ret['start']);
 138         if(x($ret,'finish'))
 139                 $ret['finish'] = datetime_convert('UTC','UTC',$ret['finish']);
 140
 141         return $ret;
 142 }
 143 */
 144
 145 function format_event_bbcode($ev) {
 146
 147         $o = '';
 148
 149         if($ev['summary'])
 150                 $o .= '[event-summary]' . $ev['summary'] . '[/event-summary]';
 151
 152         if($ev['desc'])
 153                 $o .= '[event-description]' . $ev['desc'] . '[/event-description]';
 154
 155         if($ev['start'])
 156                 $o .= '[event-start]' . $ev['start'] . '[/event-start]';
 157
 158         if(($ev['finish']) && (! $ev['nofinish']))
 159                 $o .= '[event-finish]' . $ev['finish'] . '[/event-finish]';
 160
 161         if($ev['location'])
 162                 $o .= '[event-location]' . $ev['location'] . '[/event-location]';
 163
 164         if($ev['adjust'])
 165                 $o .= '[event-adjust]' . $ev['adjust'] . '[/event-adjust]';
 166
 167
 168         return $o;
 169
 170 }
 171
 172 function bbtovcal($s) {
 173         $o = '';
 174         $ev = bbtoevent($s);
 175         if($ev['desc'])
 176                 $o = format_event_html($ev);
 177         return $o;
 178 }
 179
 180
 181 function bbtoevent($s) {
 182
 183         $ev = array();
 184
 185         $match = '';
 186         if(preg_match("/\[event\-summary\](.*?)\[\/event\-summary\]/is",$s,$match))
 187                 $ev['summary'] = $match[1];
 188         $match = '';
 189         if(preg_match("/\[event\-description\](.*?)\[\/event\-description\]/is",$s,$match))
 190                 $ev['desc'] = $match[1];
 191         $match = '';
 192         if(preg_match("/\[event\-start\](.*?)\[\/event\-start\]/is",$s,$match))
 193                 $ev['start'] = $match[1];
 194         $match = '';
 195         if(preg_match("/\[event\-finish\](.*?)\[\/event\-finish\]/is",$s,$match))
 196                 $ev['finish'] = $match[1];
 197         $match = '';
 198         if(preg_match("/\[event\-location\](.*?)\[\/event\-location\]/is",$s,$match))
 199                 $ev['location'] = $match[1];
 200         $match = '';
 201         if(preg_match("/\[event\-adjust\](.*?)\[\/event\-adjust\]/is",$s,$match))
 202                 $ev['adjust'] = $match[1];
 203         $ev['nofinish'] = (((x($ev, 'start') && $ev['start']) && (!x($ev, 'finish') || !$ev['finish'])) ? 1 : 0);
 204         return $ev;
 205
 206 }
 207
 208
 209 function sort_by_date($a) {
 210
 211         usort($a,'ev_compare');
 212         return $a;
 213 }
 214
 215
 216 function ev_compare($a,$b) {
 217
 218         $date_a = (($a['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$a['start']) : $a['start']);
 219         $date_b = (($b['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$b['start']) : $b['start']);
 220
 221         if($date_a === $date_b)
 222                 return strcasecmp($a['desc'],$b['desc']);
 223
 224         return strcmp($date_a,$date_b);
 225 }
 226
 227 function event_delete($event_id) {
 228         if ($event_id == 0)
 229                 return;
 230
 231         q("DELETE FROM `event` WHERE `id` = %d", intval($event_id));
 232         logger("Deleted event ".$event_id, LOGGER_DEBUG);
 233 }
 234
 235 function event_store($arr) {
 236
 237         require_once('include/datetime.php');
 238         require_once('include/items.php');
 239         require_once('include/bbcode.php');
 240
 241         $a = get_app();
 242
 243         $arr['created'] = (($arr['created']) ? $arr['created'] : datetime_convert());
 244         $arr['edited']  = (($arr['edited']) ? $arr['edited'] : datetime_convert());
 245         $arr['type']    = (($arr['type']) ? $arr['type'] : 'event' );
 246         $arr['cid']     = ((intval($arr['cid'])) ? intval($arr['cid']) : 0);
 247         $arr['uri']     = (x($arr,'uri') ? $arr['uri'] : item_new_uri($a->get_hostname(),$arr['uid']));
 248         $arr['private'] = ((x($arr,'private')) ? intval($arr['private']) : 0);
 249         $arr['guid']    = get_guid(32);
 250
 251         if($arr['cid'])
 252                 $c = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 253                         intval($arr['cid']),
 254                         intval($arr['uid'])
 255                 );
 256         else
 257                 $c = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
 258                         intval($arr['uid'])
 259                 );
 260
 261         if(count($c))
 262                 $contact = $c[0];
 263
 264
 265         // Existing event being modified
 266
 267         if($arr['id']) {
 268
 269                 // has the event actually changed?
 270
 271                 $r = q("SELECT * FROM `event` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 272                         intval($arr['id']),
 273                         intval($arr['uid'])
 274                 );
 275                 if((! dbm::is_result($r)) || ($r[0]['edited'] === $arr['edited'])) {
 276
 277                         // Nothing has changed. Grab the item id to return.
 278
 279                         $r = q("SELECT * FROM `item` WHERE `event-id` = %d AND `uid` = %d LIMIT 1",
 280                                 intval($arr['id']),
 281                                 intval($arr['uid'])
 282                         );
 283                         return((dbm::is_result($r)) ? $r[0]['id'] : 0);
 284                 }
 285
 286                 // The event changed. Update it.
 287
 288                 $r = q("UPDATE `event` SET
 289                         `edited` = '%s',
 290                         `start` = '%s',
 291                         `finish` = '%s',
 292                         `summary` = '%s',
 293                         `desc` = '%s',
 294                         `location` = '%s',
 295                         `type` = '%s',
 296                         `adjust` = %d,
 297                         `nofinish` = %d
 298                         WHERE `id` = %d AND `uid` = %d",
 299
 300                         dbesc($arr['edited']),
 301                         dbesc($arr['start']),
 302                         dbesc($arr['finish']),
 303                         dbesc($arr['summary']),
 304                         dbesc($arr['desc']),
 305                         dbesc($arr['location']),
 306                         dbesc($arr['type']),
 307                         intval($arr['adjust']),
 308                         intval($arr['nofinish']),
 309                         intval($arr['id']),
 310                         intval($arr['uid'])
 311                 );
 312                 $r = q("SELECT * FROM `item` WHERE `event-id` = %d AND `uid` = %d LIMIT 1",
 313                         intval($arr['id']),
 314                         intval($arr['uid'])
 315                 );
 316                 if (dbm::is_result($r)) {
 317                         $object = '<object><type>' . xmlify(ACTIVITY_OBJ_EVENT) . '</type><title></title><id>' . xmlify($arr['uri']) . '</id>';
 318                         $object .= '<content>' . xmlify(format_event_bbcode($arr)) . '</content>';
 319                         $object .= '</object>' . "\n";
 320
 321
 322                         q("UPDATE `item` SET `body` = '%s', `object` = '%s', `edited` = '%s' WHERE `id` = %d AND `uid` = %d",
 323                                 dbesc(format_event_bbcode($arr)),
 324                                 dbesc($object),
 325                                 dbesc($arr['edited']),
 326                                 intval($r[0]['id']),
 327                                 intval($arr['uid'])
 328                         );
 329
 330                         $item_id = $r[0]['id'];
 331                 } else
 332                         $item_id = 0;
 333
 334                 call_hooks("event_updated", $arr['id']);
 335
 336                 return $item_id;
 337         } else {
 338
 339                 // New event. Store it.
 340
 341                 $r = q("INSERT INTO `event` (`uid`,`cid`,`guid`,`uri`,`created`,`edited`,`start`,`finish`,`summary`, `desc`,`location`,`type`,
 342                         `adjust`,`nofinish`,`allow_cid`,`allow_gid`,`deny_cid`,`deny_gid`)
 343                         VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', '%s', '%s', '%s' ) ",
 344                         intval($arr['uid']),
 345                         intval($arr['cid']),
 346                         dbesc($arr['guid']),
 347                         dbesc($arr['uri']),
 348                         dbesc($arr['created']),
 349                         dbesc($arr['edited']),
 350                         dbesc($arr['start']),
 351                         dbesc($arr['finish']),
 352                         dbesc($arr['summary']),
 353                         dbesc($arr['desc']),
 354                         dbesc($arr['location']),
 355                         dbesc($arr['type']),
 356                         intval($arr['adjust']),
 357                         intval($arr['nofinish']),
 358                         dbesc($arr['allow_cid']),
 359                         dbesc($arr['allow_gid']),
 360                         dbesc($arr['deny_cid']),
 361                         dbesc($arr['deny_gid'])
 362
 363                 );
 364
 365                 $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 366                         dbesc($arr['uri']),
 367                         intval($arr['uid'])
 368                 );
 369                 if (dbm::is_result($r))
 370                         $event = $r[0];
 371
 372                 $item_arr = array();
 373
 374                 $item_arr['uid']           = $arr['uid'];
 375                 $item_arr['contact-id']    = $arr['cid'];
 376                 $item_arr['uri']           = $arr['uri'];
 377                 $item_arr['parent-uri']    = $arr['uri'];
 378                 $item_arr['guid']          = $arr['guid'];
 379                 $item_arr['type']          = 'activity';
 380                 $item_arr['wall']          = (($arr['cid']) ? 0 : 1);
 381                 $item_arr['contact-id']    = $contact['id'];
 382                 $item_arr['owner-name']    = $contact['name'];
 383                 $item_arr['owner-link']    = $contact['url'];
 384                 $item_arr['owner-avatar']  = $contact['thumb'];
 385                 $item_arr['author-name']   = $contact['name'];
 386                 $item_arr['author-link']   = $contact['url'];
 387                 $item_arr['author-avatar'] = $contact['thumb'];
 388                 $item_arr['title']         = '';
 389                 $item_arr['allow_cid']     = $arr['allow_cid'];
 390                 $item_arr['allow_gid']     = $arr['allow_gid'];
 391                 $item_arr['deny_cid']      = $arr['deny_cid'];
 392                 $item_arr['deny_gid']      = $arr['deny_gid'];
 393                 $item_arr['private']       = $arr['private'];
 394                 $item_arr['last-child']    = 1;
 395                 $item_arr['visible']       = 1;
 396                 $item_arr['verb']          = ACTIVITY_POST;
 397                 $item_arr['object-type']   = ACTIVITY_OBJ_EVENT;
 398                 $item_arr['origin']        = ((intval($arr['cid']) == 0) ? 1 : 0);
 399                 $item_arr['body']          = format_event_bbcode($event);
 400
 401
 402                 $item_arr['object'] = '<object><type>' . xmlify(ACTIVITY_OBJ_EVENT) . '</type><title></title><id>' . xmlify($arr['uri']) . '</id>';
 403                 $item_arr['object'] .= '<content>' . xmlify(format_event_bbcode($event)) . '</content>';
 404                 $item_arr['object'] .= '</object>' . "\n";
 405
 406                 $item_id = item_store($item_arr);
 407
 408                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
 409                         intval($arr['uid'])
 410                 );
 411                 //if (dbm::is_result($r))
 412                 //      $plink = App::get_baseurl() . '/display/' . $r[0]['nickname'] . '/' . $item_id;
 413
 414
 415                 if($item_id) {
 416                         //q("UPDATE `item` SET `plink` = '%s', `event-id` = %d  WHERE `uid` = %d AND `id` = %d",
 417                         //      dbesc($plink),
 418                         //      intval($event['id']),
 419                         //      intval($arr['uid']),
 420                         //      intval($item_id)
 421                         //);
 422                         q("UPDATE `item` SET `event-id` = %d  WHERE `uid` = %d AND `id` = %d",
 423                                 intval($event['id']),
 424                                 intval($arr['uid']),
 425                                 intval($item_id)
 426                         );
 427                 }
 428
 429                 call_hooks("event_created", $event['id']);
 430
 431                 return $item_id;
 432         }
 433 }
 434
 435 function get_event_strings() {
 436         // First day of the week (0 = Sunday)
 437         $firstDay = get_pconfig(local_user(),'system','first_day_of_week');
 438         if ($firstDay === false) $firstDay=0;
 439
 440         $i18n = array(
 441                         "firstDay" => $firstDay,
 442                         "Sun" => t("Sun"),
 443                         "Mon" => t("Mon"),
 444                         "Tue" => t("Tue"),
 445                         "Wed" => t("Wed"),
 446                         "Thu" => t("Thu"),
 447                         "Fri" => t("Fri"),
 448                         "Sat" => t("Sat"),
 449                         "Sunday" => t("Sunday"),
 450                         "Monday" => t("Monday"),
 451                         "Tuesday" => t("Tuesday"),
 452                         "Wednesday" => t("Wednesday"),
 453                         "Thursday" => t("Thursday"),
 454                         "Friday" => t("Friday"),
 455                         "Saturday" => t("Saturday"),
 456                         "Jan" => t("Jan"),
 457                         "Feb" => t("Feb"),
 458                         "Mar" => t("Mar"),
 459                         "Apr" => t("Apr"),
 460                         "May" => t("May"),
 461                         "Jun" => t("Jun"),
 462                         "Jul" => t("Jul"),
 463                         "Aug" => t("Aug"),
 464                         "Sep" => t("Sept"),
 465                         "Oct" => t("Oct"),
 466                         "Nov" => t("Nov"),
 467                         "Dec" => t("Dec"),
 468                         "January" => t("January"),
 469                         "February" => t("February"),
 470                         "March" => t("March"),
 471                         "April" => t("April"),
 472                         "May" => t("May"),
 473                         "June" => t("June"),
 474                         "July" => t("July"),
 475                         "August" => t("August"),
 476                         "September" => t("September"),
 477                         "October" => t("October"),
 478                         "November" => t("November"),
 479                         "December" => t("December"),
 480                         "today" => t("today"),
 481                         "month" => t("month"),
 482                         "week" => t("week"),
 483                         "day" => t("day"),
 484                         "allday" => t("all-day"),
 485
 486                         "noevent" => t("No events to display"),
 487
 488                         "dtstart_label" => t("Starts:"),
 489                         "dtend_label" => t("Finishes:"),
 490                         "location_label" => t("Location:")
 491                 );
 492
 493         return $i18n;
 494 }
 495
 496 /// @todo We should replace this with a separate update function if there is some time left
 497 /**
 498  * @brief Removes duplicated birthday events
 499  *
 500  * @param array $dates Array of possibly duplicated events
 501  * @return array Cleaned events
 502  */
 503 function event_remove_duplicates($dates) {
 504         $dates2 = array();
 505
 506         foreach ($dates AS $date) {
 507                 if ($date['type'] == 'birthday') {
 508                         $dates2[$date['uid']."-".$date['cid']."-".$date['start']] = $date;
 509                 } else {
 510                         $dates2[] = $date;
 511                 }
 512         }
 513         return $dates2;
 514 }
 515
 516 /**
 517  * @brief Get an event by its event ID
 518  *
 519  * @param type $owner_uid The User ID of the owner of the event
 520  * @param type $event_params An assoziative array with
 521  *      int 'event_id' => The ID of the event in the event table
 522  * @param type $sql_extra
 523  * @return array Query result
 524  */
 525 function event_by_id($owner_uid = 0, $event_params, $sql_extra = '') {
 526         // ownly allow events if there is a valid owner_id
 527         if($owner_uid == 0)
 528                 return;
 529
 530         // query for the event by event id
 531         $r = q("SELECT `event`.*, `item`.`id` AS `itemid`,`item`.`plink`,
 532                         `item`.`author-name`, `item`.`author-avatar`, `item`.`author-link` FROM `event`
 533                 LEFT JOIN `item` ON `item`.`event-id` = `event`.`id` AND `item`.`uid` = `event`.`uid`
 534                 WHERE `event`.`uid` = %d AND `event`.`id` = %d $sql_extra",
 535                 intval($owner_uid),
 536                 intval($event_params["event_id"])
 537         );
 538
 539         if (dbm::is_result($r)) {
 540                 return event_remove_duplicates($r);
 541         }
 542 }
 543
 544 /**
 545  * @brief Get all events in a specific timeframe
 546  *
 547  * @param int $owner_uid The User ID of the owner of the events
 548  * @param array $event_params An assoziative array with
 549  *      int 'ignored' =>
 550  *      string 'start' => Start time of the timeframe
 551  *      string 'finish' => Finish time of the timeframe
 552  *      string 'adjust_start' =>
 553  *      string 'adjust_start' =>
 554  *
 555  * @param string $sql_extra Additional sql conditions (e.g. permission request)
 556  * @return array Query results
 557  */
 558 function events_by_date($owner_uid = 0, $event_params, $sql_extra = '') {
 559         // ownly allow events if there is a valid owner_id
 560         if($owner_uid == 0)
 561                 return;
 562
 563         // query for the event by date
 564         $r = q("SELECT `event`.*, `item`.`id` AS `itemid`,`item`.`plink`,
 565                                 `item`.`author-name`, `item`.`author-avatar`, `item`.`author-link` FROM `event`
 566                         LEFT JOIN `item` ON `item`.`event-id` = `event`.`id` AND `item`.`uid` = `event`.`uid`
 567                         WHERE `event`.`uid` = %d AND event.ignore = %d
 568                         AND ((`adjust` = 0 AND (`finish` >= '%s' OR (nofinish AND start >= '%s')) AND `start` <= '%s')
 569                         OR  (`adjust` = 1 AND (`finish` >= '%s' OR (nofinish AND start >= '%s')) AND `start` <= '%s'))
 570                         $sql_extra ",
 571                         intval($owner_uid),
 572                         intval($event_params["ignored"]),
 573                         dbesc($event_params["start"]),
 574                         dbesc($event_params["start"]),
 575                         dbesc($event_params["finish"]),
 576                         dbesc($event_params["adjust_start"]),
 577                         dbesc($event_params["adjust_start"]),
 578                         dbesc($event_params["adjust_finish"])
 579         );
 580
 581         if (dbm::is_result($r)) {
 582                 return event_remove_duplicates($r);
 583         }
 584 }
 585
 586 /**
 587  * @brief Convert an array query results in an arry which could be used by the events template
 588  *
 589  * @param array $arr Event query array
 590  * @return array Event array for the template
 591  */
 592 function process_events($arr) {
 593         $events=array();
 594
 595         $last_date = '';
 596         $fmt = t('l, F j');
 597         if (count($arr)) {
 598                 foreach($arr as $rr) {
 599
 600                         $j = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['start'], 'j') : datetime_convert('UTC','UTC',$rr['start'],'j'));
 601                         $d = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['start'], $fmt) : datetime_convert('UTC','UTC',$rr['start'],$fmt));
 602                         $d = day_translate($d);
 603
 604                         $start = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['start'], 'c') : datetime_convert('UTC','UTC',$rr['start'],'c'));
 605                         if ($rr['nofinish']){
 606                                 $end = null;
 607                         } else {
 608                                 $end = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['finish'], 'c') : datetime_convert('UTC','UTC',$rr['finish'],'c'));
 609                         }
 610
 611
 612                         $is_first = ($d !== $last_date);
 613
 614                         $last_date = $d;
 615
 616                         // Show edit and drop actions only if the user is the owner of the event and the event
 617                         // is a real event (no bithdays)
 618                         if (local_user() && local_user() == $rr['uid'] && $rr['type'] == 'event') {
 619                                 $edit = ((! $rr['cid']) ? array(App::get_baseurl().'/events/event/'.$rr['id'],t('Edit event'),'','') : null);
 620                                 $drop = array(App::get_baseurl().'/events/drop/'.$rr['id'],t('Delete event'),'','');
 621                         }
 622
 623                         $title = strip_tags(html_entity_decode(bbcode($rr['summary']),ENT_QUOTES,'UTF-8'));
 624                         if(! $title) {
 625                                 list($title, $_trash) = explode("<br",bbcode($rr['desc']),2);
 626                                 $title = strip_tags(html_entity_decode($title,ENT_QUOTES,'UTF-8'));
 627                         }
 628
 629                         $html = format_event_html($rr);
 630                         $rr['desc'] = bbcode($rr['desc']);
 631                         $rr['location'] = bbcode($rr['location']);
 632                         $events[] = array(
 633                                 'id'=>$rr['id'],
 634                                 'start'=> $start,
 635                                 'end' => $end,
 636                                 'allDay' => false,
 637                                 'title' => $title,
 638
 639                                 'j' => $j,
 640                                 'd' => $d,
 641                                 'edit' => $edit,
 642                                 'drop' => $drop,
 643                                 'is_first'=>$is_first,
 644                                 'item'=>$rr,
 645                                 'html'=>$html,
 646                                 'plink' => array($rr['plink'],t('link to source'),'',''),
 647                         );
 648                 }
 649         }
 650
 651         return $events;
 652 }
 653
 654 /**
 655  * @brief Format event to export format (ical/csv)
 656  *
 657  * @param array $events Query result for events
 658  * @param string $format The output format (ical/csv)
 659  * @param string $timezone The timezone of the user (not implemented yet)
 660  *
 661  * @return string Content according to selected export format
 662  */
 663 function event_format_export ($events, $format = 'ical', $timezone) {
 664         if(! ((is_array($events)) && count($events)))
 665                 return;
 666
 667         switch ($format) {
 668                 // format the exported data as a CSV file
 669                 case "csv":
 670                         header("Content-type: text/csv");
 671                         $o = '"Subject", "Start Date", "Start Time", "Description", "End Date", "End Time", "Location"' . PHP_EOL;
 672
 673                         foreach ($events as $event) {
 674                         /// @todo the time / date entries don't include any information about the
 675                         // timezone the event is scheduled in :-/
 676                                 $tmp1 = strtotime($event['start']);
 677                                 $tmp2 = strtotime($event['finish']);
 678                                 $time_format = "%H:%M:%S";
 679                                 $date_format = "%Y-%m-%d";
 680                                 $o .= '"'.$event['summary'].'", "'.strftime($date_format, $tmp1) .
 681                                         '", "'.strftime($time_format, $tmp1).'", "'.$event['desc'] .
 682                                         '", "'.strftime($date_format, $tmp2) .
 683                                         '", "'.strftime($time_format, $tmp2) .
 684                                         '", "'.$event['location'].'"' . PHP_EOL;
 685                         }
 686                         break;
 687
 688                 // format the exported data as a ics file
 689                 case "ical":
 690                         header("Content-type: text/ics");
 691                         $o = 'BEGIN:VCALENDAR'. PHP_EOL
 692                                 . 'VERSION:2.0' . PHP_EOL
 693                                 . 'PRODID:-//friendica calendar export//0.1//EN' . PHP_EOL;
 694                         ///  @todo include timezone informations in cases were the time is not in UTC
 695                         //  see http://tools.ietf.org/html/rfc2445#section-4.8.3
 696                         //              . 'BEGIN:VTIMEZONE' . PHP_EOL
 697                         //              . 'TZID:' . $timezone . PHP_EOL
 698                         //              . 'END:VTIMEZONE' . PHP_EOL;
 699                         //  TODO instead of PHP_EOL CRLF should be used for long entries
 700                         //       but test your solution against http://icalvalid.cloudapp.net/
 701                         //       also long lines SHOULD be split at 75 characters length
 702                         foreach ($events as $event) {
 703                                 if ($event['adjust'] == 1) {
 704                                         $UTC = 'Z';
 705                                 } else {
 706                                         $UTC = '';
 707                                 }
 708                                 $o .= 'BEGIN:VEVENT' . PHP_EOL;
 709                                 if ($event[start]) {
 710                                         $tmp = strtotime($event['start']);
 711                                         $dtformat = "%Y%m%dT%H%M%S".$UTC;
 712                                         $o .= 'DTSTART:'.strftime($dtformat, $tmp).PHP_EOL;
 713                                 }
 714                                 if (!$event['nofinish']) {
 715                                         $tmp = strtotime($event['finish']);
 716                                         $dtformat = "%Y%m%dT%H%M%S".$UTC;
 717                                         $o .= 'DTEND:'.strftime($dtformat, $tmp).PHP_EOL;
 718                                 }
 719                                 if ($event['summary'])
 720                                         $tmp = $event['summary'];
 721                                         $tmp = str_replace(PHP_EOL, PHP_EOL.' ',$tmp);
 722                                         $tmp = addcslashes($tmp, ',;');
 723                                         $o .= 'SUMMARY:' . $tmp . PHP_EOL;
 724                                 if ($event['desc'])
 725                                         $tmp = $event['desc'];
 726                                         $tmp = str_replace(PHP_EOL, PHP_EOL.' ',$tmp);
 727                                         $tmp = addcslashes($tmp, ',;');
 728                                         $o .= 'DESCRIPTION:' . $tmp . PHP_EOL;
 729                                 if ($event['location']) {
 730                                         $tmp = $event['location'];
 731                                         $tmp = str_replace(PHP_EOL, PHP_EOL.' ',$tmp);
 732                                         $tmp = addcslashes($tmp, ',;');
 733                                         $o .= 'LOCATION:' . $tmp . PHP_EOL;
 734                                 }
 735
 736                                 $o .= 'END:VEVENT' . PHP_EOL;
 737                                 $o .= PHP_EOL;
 738                         }
 739
 740                         $o .= 'END:VCALENDAR' . PHP_EOL;
 741                         break;
 742         }
 743
 744         return $o;
 745 }
 746
 747 /**
 748  * @brief Get all events for a user ID
 749  *
 750  *    The query for events is done permission sensitive
 751  *    If the user is the owner of the calendar he/she
 752  *    will get all of his/her available events.
 753  *    If the user is only a visitor only the public events will
 754  *    be available
 755  *
 756  * @param int $uid The user ID
 757  * @param int $sql_extra Additional sql conditions for permission
 758  *
 759  * @return array Query results
 760  */
 761 function events_by_uid($uid = 0, $sql_extra = '') {
 762         if($uid == 0)
 763                 return;
 764
 765         // The permission condition if no condition was transmitted
 766         if($sql_extra == '')
 767                 $sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' ";
 768
 769         //  does the user who requests happen to be the owner of the events
 770         //  requested? then show all of your events, otherwise only those that
 771         //  don't have limitations set in allow_cid and allow_gid
 772         if (local_user() == $uid) {
 773                 $r = q("SELECT `start`, `finish`, `adjust`, `summary`, `desc`, `location`, `nofinish`
 774                         FROM `event` WHERE `uid`= %d AND `cid` = 0 ",
 775                         intval($uid)
 776                 );
 777         } else {
 778                 $r = q("SELECT `start`, `finish`, `adjust`, `summary`, `desc`, `location`, `nofinish`
 779                         FROM `event` WHERE `uid`= %d AND `cid` = 0 $sql_extra ",
 780                         intval($uid)
 781                 );
 782         }
 783
 784         if (dbm::is_result($r))
 785                 return $r;
 786 }
 787
 788 /**
 789  *
 790  * @param int $uid The user ID
 791  * @param string $format Output format (ical/csv)
 792  * @return array With the results
 793  *      bool 'success' => True if the processing was successful
 794  *      string 'format' => The output format
 795  *      string 'extension' => The file extension of the output format
 796  *      string 'content' => The formatted output content
 797  *
 798  * @todo Respect authenticated users with events_by_uid()
 799  */
 800 function event_export($uid, $format = 'ical') {
 801
 802         $process = false;
 803
 804         // we are allowed to show events
 805         // get the timezone the user is in
 806         $r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d LIMIT 1", intval($uid));
 807         if (dbm::is_result($r))
 808                 $timezone = $r[0]['timezone'];
 809
 810         // get all events which are owned by a uid (respects permissions);
 811         $events = events_by_uid($uid);
 812
 813         //  we have the events that are available for the requestor
 814         //  now format the output according to the requested format
 815         if(count($events))
 816                 $res = event_format_export($events, $format, $timezone);
 817
 818         // If there are results the precess was successfull
 819         if(x($res))
 820                 $process = true;
 821
 822         // get the file extension for the format
 823         switch ($format) {
 824                 case "ical":
 825                         $file_ext = "ics";
 826                         break;
 827
 828                 case "csv":
 829                         $file_ext = "csv";
 830                         break;
 831
 832                 default:
 833                         $file_ext = "";
 834         }
 835
 836         $arr = array(
 837                 'success' => $process,
 838                 'format' => $format,
 839                 'extension' => $file_ext,
 840                 'content' => $res,
 841         );
 842
 843         return $arr;
 844 }
 845
 846 /**
 847  * @brief Get the events widget
 848  *
 849  * @return string Formated html of the evens widget
 850  */
 851 function widget_events() {
 852         $a = get_app();
 853
 854         $owner_uid = $a->data['user']['uid'];
 855         // $a->data is only available if the profile page is visited. If the visited page is not part
 856         // of the profile page it should be the personal /events page. So we can use $a->user
 857         $user = ($a->data['user']['nickname'] ? $a->data['user']['nickname'] : $a->user['nickname']);
 858
 859
 860         // The permission testing is a little bit tricky because we have to respect many cases
 861
 862         // It's not the private events page (we don't get the $owner_uid for /events)
 863         if(! local_user() && ! $owner_uid)
 864                 return;
 865
 866         // Cal logged in user (test permission at foreign profile page)
 867         // If the $owner uid is available we know it is part of one of the profile pages (like /cal)
 868         // So we have to test if if it's the own profile page of the logged in user
 869         // or a foreign one. For foreign profile pages we need to check if the feature
 870         // for exporting the cal is enabled (otherwise the widget would appear for logged in users
 871         // on foreigen profile pages even if the widget is disabled)
 872         if(intval($owner_uid) && local_user() !== $owner_uid && ! feature_enabled($owner_uid, "export_calendar"))
 873                 return;
 874
 875         // If it's a kind of profile page (intval($owner_uid)) return if the user not logged in and
 876         // export feature isn't enabled
 877         if(intval($owner_uid) && ! local_user() && ! feature_enabled($owner_uid, "export_calendar"))
 878                 return;
 879
 880         return replace_macros(get_markup_template("events_aside.tpl"), array(
 881                 '$etitle' => t("Export"),
 882                 '$export_ical' => t("Export calendar as ical"),
 883                 '$export_csv' => t("Export calendar as csv"),
 884                 '$user' => $user
 885         ));
 886
 887 }