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($arr['private']) : 0);
 249
 250         if($arr['cid'])
 251                 $c = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 252                         intval($arr['cid']),
 253                         intval($arr['uid'])
 254                 );
 255         else
 256                 $c = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
 257                         intval($arr['uid'])
 258                 );
 259
 260         if(count($c))
 261                 $contact = $c[0];
 262
 263
 264         // Existing event being modified
 265
 266         if($arr['id']) {
 267
 268                 // has the event actually changed?
 269
 270                 $r = q("SELECT * FROM `event` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 271                         intval($arr['id']),
 272                         intval($arr['uid'])
 273                 );
 274                 if((! count($r)) || ($r[0]['edited'] === $arr['edited'])) {
 275
 276                         // Nothing has changed. Grab the item id to return.
 277
 278                         $r = q("SELECT * FROM `item` WHERE `event-id` = %d AND `uid` = %d LIMIT 1",
 279                                 intval($arr['id']),
 280                                 intval($arr['uid'])
 281                         );
 282                         return((count($r)) ? $r[0]['id'] : 0);
 283                 }
 284
 285                 // The event changed. Update it.
 286
 287                 $r = q("UPDATE `event` SET
 288                         `edited` = '%s',
 289                         `start` = '%s',
 290                         `finish` = '%s',
 291                         `summary` = '%s',
 292                         `desc` = '%s',
 293                         `location` = '%s',
 294                         `type` = '%s',
 295                         `adjust` = %d,
 296                         `nofinish` = %d
 297                         WHERE `id` = %d AND `uid` = %d",
 298
 299                         dbesc($arr['edited']),
 300                         dbesc($arr['start']),
 301                         dbesc($arr['finish']),
 302                         dbesc($arr['summary']),
 303                         dbesc($arr['desc']),
 304                         dbesc($arr['location']),
 305                         dbesc($arr['type']),
 306                         intval($arr['adjust']),
 307                         intval($arr['nofinish']),
 308                         intval($arr['id']),
 309                         intval($arr['uid'])
 310                 );
 311                 $r = q("SELECT * FROM `item` WHERE `event-id` = %d AND `uid` = %d LIMIT 1",
 312                         intval($arr['id']),
 313                         intval($arr['uid'])
 314                 );
 315                 if(count($r)) {
 316                         $object = '<object><type>' . xmlify(ACTIVITY_OBJ_EVENT) . '</type><title></title><id>' . xmlify($arr['uri']) . '</id>';
 317                         $object .= '<content>' . xmlify(format_event_bbcode($arr)) . '</content>';
 318                         $object .= '</object>' . "\n";
 319
 320
 321                         q("UPDATE `item` SET `body` = '%s', `object` = '%s', `edited` = '%s' WHERE `id` = %d AND `uid` = %d",
 322                                 dbesc(format_event_bbcode($arr)),
 323                                 dbesc($object),
 324                                 dbesc($arr['edited']),
 325                                 intval($r[0]['id']),
 326                                 intval($arr['uid'])
 327                         );
 328
 329                         $item_id = $r[0]['id'];
 330                 } else
 331                         $item_id = 0;
 332
 333                 call_hooks("event_updated", $arr['id']);
 334
 335                 return $item_id;
 336         }
 337         else {
 338
 339                 // New event. Store it.
 340
 341                 $r = q("INSERT INTO `event` ( `uid`,`cid`,`uri`,`created`,`edited`,`start`,`finish`,`summary`, `desc`,`location`,`type`,
 342                         `adjust`,`nofinish`,`allow_cid`,`allow_gid`,`deny_cid`,`deny_gid`)
 343                         VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', '%s', '%s', '%s' ) ",
 344                         intval($arr['uid']),
 345                         intval($arr['cid']),
 346                         dbesc($arr['uri']),
 347                         dbesc($arr['created']),
 348                         dbesc($arr['edited']),
 349                         dbesc($arr['start']),
 350                         dbesc($arr['finish']),
 351                         dbesc($arr['summary']),
 352                         dbesc($arr['desc']),
 353                         dbesc($arr['location']),
 354                         dbesc($arr['type']),
 355                         intval($arr['adjust']),
 356                         intval($arr['nofinish']),
 357                         dbesc($arr['allow_cid']),
 358                         dbesc($arr['allow_gid']),
 359                         dbesc($arr['deny_cid']),
 360                         dbesc($arr['deny_gid'])
 361
 362                 );
 363
 364                 $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 365                         dbesc($arr['uri']),
 366                         intval($arr['uid'])
 367                 );
 368                 if(count($r))
 369                         $event = $r[0];
 370
 371                 $item_arr = array();
 372
 373                 $item_arr['uid']           = $arr['uid'];
 374                 $item_arr['contact-id']    = $arr['cid'];
 375                 $item_arr['uri']           = $arr['uri'];
 376                 $item_arr['parent-uri']    = $arr['uri'];
 377                 $item_arr['guid']          = $arr['guid'];
 378                 $item_arr['type']          = 'activity';
 379                 $item_arr['wall']          = (($arr['cid']) ? 0 : 1);
 380                 $item_arr['contact-id']    = $contact['id'];
 381                 $item_arr['owner-name']    = $contact['name'];
 382                 $item_arr['owner-link']    = $contact['url'];
 383                 $item_arr['owner-avatar']  = $contact['thumb'];
 384                 $item_arr['author-name']   = $contact['name'];
 385                 $item_arr['author-link']   = $contact['url'];
 386                 $item_arr['author-avatar'] = $contact['thumb'];
 387                 $item_arr['title']         = '';
 388                 $item_arr['allow_cid']     = $arr['allow_cid'];
 389                 $item_arr['allow_gid']     = $arr['allow_gid'];
 390                 $item_arr['deny_cid']      = $arr['deny_cid'];
 391                 $item_arr['deny_gid']      = $arr['deny_gid'];
 392                 $item_arr['private']       = $arr['private'];
 393                 $item_arr['last-child']    = 1;
 394                 $item_arr['visible']       = 1;
 395                 $item_arr['verb']          = ACTIVITY_POST;
 396                 $item_arr['object-type']   = ACTIVITY_OBJ_EVENT;
 397                 $item_arr['origin']        = ((intval($arr['cid']) == 0) ? 1 : 0);
 398                 $item_arr['body']          = format_event_bbcode($event);
 399
 400
 401                 $item_arr['object'] = '<object><type>' . xmlify(ACTIVITY_OBJ_EVENT) . '</type><title></title><id>' . xmlify($arr['uri']) . '</id>';
 402                 $item_arr['object'] .= '<content>' . xmlify(format_event_bbcode($event)) . '</content>';
 403                 $item_arr['object'] .= '</object>' . "\n";
 404
 405                 $item_id = item_store($item_arr);
 406
 407                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
 408                         intval($arr['uid'])
 409                 );
 410                 //if(count($r))
 411                 //      $plink = $a->get_baseurl() . '/display/' . $r[0]['nickname'] . '/' . $item_id;
 412
 413
 414                 if($item_id) {
 415                         //q("UPDATE `item` SET `plink` = '%s', `event-id` = %d  WHERE `uid` = %d AND `id` = %d",
 416                         //      dbesc($plink),
 417                         //      intval($event['id']),
 418                         //      intval($arr['uid']),
 419                         //      intval($item_id)
 420                         //);
 421                         q("UPDATE `item` SET `event-id` = %d  WHERE `uid` = %d AND `id` = %d",
 422                                 intval($event['id']),
 423                                 intval($arr['uid']),
 424                                 intval($item_id)
 425                         );
 426                 }
 427
 428                 call_hooks("event_created", $event['id']);
 429
 430                 return $item_id;
 431         }
 432 }
 433
 434 function get_event_strings() {
 435         // First day of the week (0 = Sunday)
 436         $firstDay = get_pconfig(local_user(),'system','first_day_of_week');
 437         if ($firstDay === false) $firstDay=0;
 438
 439         $i18n = array(
 440                         "firstDay" => $firstDay,
 441                         "Sun" => t("Sun"),
 442                         "Mon" => t("Mon"),
 443                         "Tue" => t("Tue"),
 444                         "Wed" => t("Wed"),
 445                         "Thu" => t("Thu"),
 446                         "Fri" => t("Fri"),
 447                         "Sat" => t("Sat"),
 448                         "Sunday" => t("Sunday"),
 449                         "Monday" => t("Monday"),
 450                         "Tuesday" => t("Tuesday"),
 451                         "Wednesday" => t("Wednesday"),
 452                         "Thursday" => t("Thursday"),
 453                         "Friday" => t("Friday"),
 454                         "Saturday" => t("Saturday"),
 455                         "Jan" => t("Jan"),
 456                         "Feb" => t("Feb"),
 457                         "Mar" => t("Mar"),
 458                         "Apr" => t("Apr"),
 459                         "May" => t("May"),
 460                         "Jun" => t("Jun"),
 461                         "Jul" => t("Jul"),
 462                         "Aug" => t("Aug"),
 463                         "Sep" => t("Sept"),
 464                         "Oct" => t("Oct"),
 465                         "Nov" => t("Nov"),
 466                         "Dec" => t("Dec"),
 467                         "January" => t("January"),
 468                         "February" => t("February"),
 469                         "March" => t("March"),
 470                         "April" => t("April"),
 471                         "May" => t("May"),
 472                         "June" => t("June"),
 473                         "July" => t("July"),
 474                         "August" => t("August"),
 475                         "September" => t("September"),
 476                         "October" => t("October"),
 477                         "November" => t("November"),
 478                         "December" => t("December"),
 479                         "today" => t("today"),
 480                         "month" => t("month"),
 481                         "week" => t("week"),
 482                         "day" => t("day"),
 483                 );
 484
 485         return $i18n;
 486 }
 487
 488 /**
 489  * @brief Get an event by its event ID
 490  *
 491  * @param type $owner_uid The User ID of the owner of the event
 492  * @param type $event_params An assoziative array with
 493  *      int 'event_id' => The ID of the event in the event table
 494  * @param type $sql_extra
 495  * @return array Query result
 496  */
 497 function event_by_id($owner_uid = 0, $event_params, $sql_extra = '') {
 498         // ownly allow events if there is a valid owner_id
 499         if($owner_uid == 0)
 500                 return;
 501
 502         // query for the event by event id
 503         $r = q("SELECT `event`.*, `item`.`id` AS `itemid`,`item`.`plink`,
 504                         `item`.`author-name`, `item`.`author-avatar`, `item`.`author-link` FROM `event`
 505                 LEFT JOIN `item` ON `item`.`event-id` = `event`.`id` AND `item`.`uid` = `event`.`uid`
 506                 WHERE `event`.`uid` = %d AND `event`.`id` = %d $sql_extra",
 507                 intval($owner_uid),
 508                 intval($event_params["event_id"])
 509         );
 510
 511         if(count($r))
 512                 return $r;
 513
 514 }
 515
 516 /**
 517  * @brief Get all events in a specific timeframe
 518  *
 519  * @param int $owner_uid The User ID of the owner of the events
 520  * @param array $event_params An assoziative array with
 521  *      int 'ignored' =>
 522  *      string 'start' => Start time of the timeframe
 523  *      string 'finish' => Finish time of the timeframe
 524  *      string 'adjust_start' =>
 525  *      string 'adjust_start' =>
 526  *
 527  * @param string $sql_extra Additional sql conditions (e.g. permission request)
 528  * @return array Query results
 529  */
 530 function events_by_date($owner_uid = 0, $event_params, $sql_extra = '') {
 531         // ownly allow events if there is a valid owner_id
 532         if($owner_uid == 0)
 533                 return;
 534
 535         // query for the event by date
 536         $r = q("SELECT `event`.*, `item`.`id` AS `itemid`,`item`.`plink`,
 537                                 `item`.`author-name`, `item`.`author-avatar`, `item`.`author-link` FROM `event`
 538                         LEFT JOIN `item` ON `item`.`event-id` = `event`.`id` AND `item`.`uid` = `event`.`uid`
 539                         WHERE `event`.`uid` = %d AND event.ignore = %d
 540                         AND ((`adjust` = 0 AND (`finish` >= '%s' OR (nofinish AND start >= '%s')) AND `start` <= '%s')
 541                         OR  (`adjust` = 1 AND (`finish` >= '%s' OR (nofinish AND start >= '%s')) AND `start` <= '%s'))
 542                         $sql_extra ",
 543                         intval($owner_uid),
 544                         intval($event_params["ignored"]),
 545                         dbesc($event_params["start"]),
 546                         dbesc($event_params["start"]),
 547                         dbesc($event_params["finish"]),
 548                         dbesc($event_params["adjust_start"]),
 549                         dbesc($event_params["adjust_start"]),
 550                         dbesc($event_params["adjust_finish"])
 551         );
 552
 553         if(count($r))
 554                 return $r;
 555 }
 556
 557 /**
 558  * @brief Convert an array query results in an arry which could be used by the events template
 559  *
 560  * @param array $arr Event query array
 561  * @return array Event array for the template
 562  */
 563 function process_events ($arr) {
 564         $events=array();
 565
 566         $last_date = '';
 567         $fmt = t('l, F j');
 568         if (count($arr)) {
 569                 foreach($arr as $rr) {
 570
 571                         $j = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['start'], 'j') : datetime_convert('UTC','UTC',$rr['start'],'j'));
 572                         $d = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['start'], $fmt) : datetime_convert('UTC','UTC',$rr['start'],$fmt));
 573                         $d = day_translate($d);
 574
 575                         $start = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['start'], 'c') : datetime_convert('UTC','UTC',$rr['start'],'c'));
 576                         if ($rr['nofinish']){
 577                                 $end = null;
 578                         } else {
 579                                 $end = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['finish'], 'c') : datetime_convert('UTC','UTC',$rr['finish'],'c'));
 580                         }
 581
 582
 583                         $is_first = ($d !== $last_date);
 584
 585                         $last_date = $d;
 586                         $edit = ((! $rr['cid']) ? array(App::get_baseurl().'/events/event/'.$rr['id'],t('Edit event'),'','') : null);
 587                         $title = strip_tags(html_entity_decode(bbcode($rr['summary']),ENT_QUOTES,'UTF-8'));
 588                         if(! $title) {
 589                                 list($title, $_trash) = explode("<br",bbcode($rr['desc']),2);
 590                                 $title = strip_tags(html_entity_decode($title,ENT_QUOTES,'UTF-8'));
 591                         }
 592
 593                         $html = format_event_html($rr);
 594                         $rr['desc'] = bbcode($rr['desc']);
 595                         $rr['location'] = bbcode($rr['location']);
 596                         $events[] = array(
 597                                 'id'=>$rr['id'],
 598                                 'start'=> $start,
 599                                 'end' => $end,
 600                                 'allDay' => false,
 601                                 'title' => $title,
 602
 603                                 'j' => $j,
 604                                 'd' => $d,
 605                                 'is_first'=>$is_first,
 606                                 'item'=>$rr,
 607                                 'html'=>$html,
 608                                 'plink' => array($rr['plink'],t('link to source'),'',''),
 609                         );
 610                 }
 611         }
 612
 613         return $events;
 614 }
 615
 616 /**
 617  * @brief Format event to export format (ical/csv)
 618  *
 619  * @param array $events Query result for events
 620  * @param string $format The output format (ical/csv)
 621  * @param string $timezone The timezone of the user (not implemented yet)
 622  *
 623  * @return string Content according to selected export format
 624  */
 625 function event_format_export ($events, $format = 'ical', $timezone) {
 626         if(! ((is_array($events)) && count($events)))
 627                 return;
 628
 629         switch ($format) {
 630                 // format the exported data as a CSV file
 631                 case "csv":
 632                         header("Content-type: text/csv");
 633                         $o = '"Subject", "Start Date", "Start Time", "Description", "End Date", "End Time", "Location"' . PHP_EOL;
 634
 635                         foreach ($events as $event) {
 636                         /// @todo the time / date entries don't include any information about the
 637                         // timezone the event is scheduled in :-/
 638                                 $tmp1 = strtotime($event['start']);
 639                                 $tmp2 = strtotime($event['finish']);
 640                                 $time_format = "%H:%M:%S";
 641                                 $date_format = "%Y-%m-%d";
 642                                 $o .= '"'.$event['summary'].'", "'.strftime($date_format, $tmp1) .
 643                                         '", "'.strftime($time_format, $tmp1).'", "'.$event['desc'] .
 644                                         '", "'.strftime($date_format, $tmp2) .
 645                                         '", "'.strftime($time_format, $tmp2) .
 646                                         '", "'.$event['location'].'"' . PHP_EOL;
 647                         }
 648                         break;
 649
 650                 // format the exported data as a ics file
 651                 case "ical":
 652                         header("Content-type: text/ics");
 653                         $o = 'BEGIN:VCALENDAR'. PHP_EOL
 654                                 . 'VERSION:2.0' . PHP_EOL
 655                                 . 'PRODID:-//friendica calendar export//0.1//EN' . PHP_EOL;
 656                         ///  @todo include timezone informations in cases were the time is not in UTC
 657                         //  see http://tools.ietf.org/html/rfc2445#section-4.8.3
 658                         //              . 'BEGIN:VTIMEZONE' . PHP_EOL
 659                         //              . 'TZID:' . $timezone . PHP_EOL
 660                         //              . 'END:VTIMEZONE' . PHP_EOL;
 661                         //  TODO instead of PHP_EOL CRLF should be used for long entries
 662                         //       but test your solution against http://icalvalid.cloudapp.net/
 663                         //       also long lines SHOULD be split at 75 characters length
 664                         foreach ($events as $event) {
 665                                 if ($event['adjust'] == 1) {
 666                                         $UTC = 'Z';
 667                                 } else {
 668                                         $UTC = '';
 669                                 }
 670                                 $o .= 'BEGIN:VEVENT' . PHP_EOL;
 671                                 if ($event[start]) {
 672                                         $tmp = strtotime($event['start']);
 673                                         $dtformat = "%Y%m%dT%H%M%S".$UTC;
 674                                         $o .= 'DTSTART:'.strftime($dtformat, $tmp).PHP_EOL;
 675                                 }
 676                                 if (!$event['nofinish']) {
 677                                         $tmp = strtotime($event['finish']);
 678                                         $dtformat = "%Y%m%dT%H%M%S".$UTC;
 679                                         $o .= 'DTEND:'.strftime($dtformat, $tmp).PHP_EOL;
 680                                 }
 681                                 if ($event['summary'])
 682                                         $tmp = $event['summary'];
 683                                         $tmp = str_replace(PHP_EOL, PHP_EOL.' ',$tmp);
 684                                         $tmp = addcslashes($tmp, ',;');
 685                                         $o .= 'SUMMARY:' . $tmp . PHP_EOL;
 686                                 if ($event['desc'])
 687                                         $tmp = $event['desc'];
 688                                         $tmp = str_replace(PHP_EOL, PHP_EOL.' ',$tmp);
 689                                         $tmp = addcslashes($tmp, ',;');
 690                                         $o .= 'DESCRIPTION:' . $tmp . PHP_EOL;
 691                                 if ($event['location']) {
 692                                         $tmp = $event['location'];
 693                                         $tmp = str_replace(PHP_EOL, PHP_EOL.' ',$tmp);
 694                                         $tmp = addcslashes($tmp, ',;');
 695                                         $o .= 'LOCATION:' . $tmp . PHP_EOL;
 696                                 }
 697
 698                                 $o .= 'END:VEVENT' . PHP_EOL;
 699                                 $o .= PHP_EOL;
 700                         }
 701
 702                         $o .= 'END:VCALENDAR' . PHP_EOL;
 703                         break;
 704         }
 705
 706         return $o;
 707 }
 708
 709 /**
 710  * @brief Get all events for a user ID
 711  *
 712  *    The query for events is done permission sensitive
 713  *    If the user is the owner of the calendar he/she
 714  *    will get all of his/her available events.
 715  *    If the user is only a visitor only the public events will
 716  *    be available
 717  *
 718  * @param int $uid The user ID
 719  * @param int $sql_extra Additional sql conditions for permission
 720  *
 721  * @return array Query results
 722  */
 723 function events_by_uid($uid = 0, $sql_extra = '') {
 724         if($uid == 0)
 725                 return;
 726
 727         // The permission condition if no condition was transmitted
 728         if($sql_extra == '')
 729                 $sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' ";
 730
 731         //  does the user who requests happen to be the owner of the events
 732         //  requested? then show all of your events, otherwise only those that
 733         //  don't have limitations set in allow_cid and allow_gid
 734         if (local_user() == $uid) {
 735                 $r = q("SELECT `start`, `finish`, `adjust`, `summary`, `desc`, `location`, `nofinish`
 736                         FROM `event` WHERE `uid`= %d AND `cid` = 0 ",
 737                         intval($uid)
 738                 );
 739         } else {
 740                 $r = q("SELECT `start`, `finish`, `adjust`, `summary`, `desc`, `location`, `nofinish`
 741                         FROM `event` WHERE `uid`= %d AND `cid` = 0 $sql_extra ",
 742                         intval($uid)
 743                 );
 744         }
 745
 746         if(count($r))
 747                 return $r;
 748 }
 749
 750 /**
 751  *
 752  * @param int $uid The user ID
 753  * @param string $format Output format (ical/csv)
 754  * @return array With the results
 755  *      bool 'success' => True if the processing was successful
 756  *      string 'format' => The output format
 757  *      string 'extension' => The file extension of the output format
 758  *      string 'content' => The formatted output content
 759  *
 760  * @todo Respect authenticated users with events_by_uid()
 761  */
 762 function event_export($uid, $format = 'ical') {
 763
 764         $process = false;
 765
 766         // we are allowed to show events
 767         // get the timezone the user is in
 768         $r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d LIMIT 1", intval($uid));
 769         if (count($r))
 770                 $timezone = $r[0]['timezone'];
 771
 772         // get all events which are owned by a uid (respects permissions);
 773         $events = events_by_uid($uid);
 774
 775         //  we have the events that are available for the requestor
 776         //  now format the output according to the requested format
 777         if(count($events))
 778                 $res = event_format_export($events, $format, $timezone);
 779
 780         // If there are results the precess was successfull
 781         if(x($res))
 782                 $process = true;
 783
 784         // get the file extension for the format
 785         switch ($format) {
 786                 case "ical":
 787                         $file_ext = "ics";
 788                         break;
 789
 790                 case "csv":
 791                         $file_ext = "csv";
 792                         break;
 793
 794                 default:
 795                         $file_ext = "";
 796         }
 797
 798         $arr = array(
 799                 'success' => $process,
 800                 'format' => $format,
 801                 'extension' => $file_ext,
 802                 'content' => $res,
 803         );
 804
 805         return $arr;
 806 }
 807
 808 /**
 809  * @brief Get the events widget
 810  *
 811  * @return string Formated html of the evens widget
 812  */
 813 function widget_events() {
 814         $a = get_app();
 815
 816         $owner_uid = $a->data['user']['uid'];
 817         // $a->data is only available if the profile page is visited. If the visited page is not part
 818         // of the profile page it should be the personal /events page. So we can use $a->user
 819         $user = ($a->data['user']['nickname'] ? $a->data['user']['nickname'] : $a->user['nickname']);
 820
 821
 822         // The permission testing is a little bit tricky because we have to respect many cases
 823
 824         // It's not the private events page (we don't get the $owner_uid for /events)
 825         if(! local_user() && ! $owner_uid)
 826                 return;
 827
 828         // Cal logged in user (test permission at foreign profile page)
 829         // If the $owner uid is available we know it is part of one of the profile pages (like /cal)
 830         // So we have to test if if it's the own profile page of the logged in user
 831         // or a foreign one. For foreign profile pages we need to check if the feature
 832         // for exporting the cal is enabled (otherwise the widget would appear for logged in users
 833         // on foreigen profile pages even if the widget is disabled)
 834         if(intval($owner_uid) && local_user() !== $owner_uid && ! feature_enabled($owner_uid, "export_calendar"))
 835                 return;
 836
 837         // If it's a kind of profile page (intval($owner_uid)) return if the user not logged in and
 838         // export feature isn't enabled
 839         if(intval($owner_uid) && ! local_user() && ! feature_enabled($owner_uid, "export_calendar"))
 840                 return;
 841
 842         return replace_macros(get_markup_template("events_aside.tpl"), array(
 843                 '$etitle' => t("Export"),
 844                 '$export_ical' => t("Export calendar as ical"),
 845                 '$export_csv' => t("Export calendar as csv"),
 846                 '$user' => $user
 847         ));
 848
 849 }