Calendar.php 17 KB

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  1. <?php
  2. /**
  3. * This file has only one real task, showing the calendar.
  4. * Original module by Aaron O'Neil - [email protected]
  5. *
  6. * Simple Machines Forum (SMF)
  7. *
  8. * @package SMF
  9. * @author Simple Machines http://www.simplemachines.org
  10. * @copyright 2011 Simple Machines
  11. * @license http://www.simplemachines.org/about/smf/license.php BSD
  12. *
  13. * @version 2.1 Alpha 1
  14. */
  15. if (!defined('SMF'))
  16. die('Hacking attempt...');
  17. /**
  18. * Show the calendar.
  19. * It loads the specified month's events, holidays, and birthdays.
  20. * It requires the calendar_view permission.
  21. * It depends on the cal_enabled setting, and many of the other cal_ settings.
  22. * It uses the calendar_start_day theme option. (Monday/Sunday)
  23. * It uses the main sub template in the Calendar template.
  24. * It goes to the month and year passed in 'month' and 'year' by get or post.
  25. * It is accessed through ?action=calendar.
  26. */
  27. function CalendarMain()
  28. {
  29. global $txt, $context, $modSettings, $scripturl, $options, $sourcedir;
  30. // Permissions, permissions, permissions.
  31. isAllowedTo('calendar_view');
  32. // Doing something other than calendar viewing?
  33. $subActions = array(
  34. 'ical' => 'iCalDownload',
  35. 'post' => 'CalendarPost',
  36. );
  37. if (isset($_GET['sa']) && isset($subActions[$_GET['sa']]) && !WIRELESS)
  38. return $subActions[$_GET['sa']]();
  39. // This is gonna be needed...
  40. loadTemplate('Calendar');
  41. // You can't do anything if the calendar is off.
  42. if (empty($modSettings['cal_enabled']))
  43. fatal_lang_error('calendar_off', false);
  44. // Set the page title to mention the calendar ;).
  45. $context['page_title'] = $txt['calendar'];
  46. // Is this a week view?
  47. $context['view_week'] = isset($_GET['viewweek']);
  48. // Don't let search engines index weekly calendar pages.
  49. if ($context['view_week'])
  50. $context['robot_no_index'] = true;
  51. // Get the current day of month...
  52. require_once($sourcedir . '/Subs-Calendar.php');
  53. $today = getTodayInfo();
  54. // If the month and year are not passed in, use today's date as a starting point.
  55. $curPage = array(
  56. 'day' => isset($_REQUEST['day']) ? (int) $_REQUEST['day'] : $today['day'],
  57. 'month' => isset($_REQUEST['month']) ? (int) $_REQUEST['month'] : $today['month'],
  58. 'year' => isset($_REQUEST['year']) ? (int) $_REQUEST['year'] : $today['year']
  59. );
  60. // Make sure the year and month are in valid ranges.
  61. if ($curPage['month'] < 1 || $curPage['month'] > 12)
  62. fatal_lang_error('invalid_month', false);
  63. if ($curPage['year'] < $modSettings['cal_minyear'] || $curPage['year'] > $modSettings['cal_maxyear'])
  64. fatal_lang_error('invalid_year', false);
  65. // If we have a day clean that too.
  66. if ($context['view_week'])
  67. {
  68. // Note $isValid is -1 < PHP 5.1
  69. $isValid = mktime(0, 0, 0, $curPage['month'], $curPage['day'], $curPage['year']);
  70. if ($curPage['day'] > 31 || !$isValid || $isValid == -1)
  71. fatal_lang_error('invalid_day', false);
  72. }
  73. // Load all the context information needed to show the calendar grid.
  74. $calendarOptions = array(
  75. 'start_day' => !empty($options['calendar_start_day']) ? $options['calendar_start_day'] : 0,
  76. 'show_birthdays' => in_array($modSettings['cal_showbdays'], array(1, 2)),
  77. 'show_events' => in_array($modSettings['cal_showevents'], array(1, 2)),
  78. 'show_holidays' => in_array($modSettings['cal_showholidays'], array(1, 2)),
  79. 'show_week_num' => true,
  80. 'short_day_titles' => false,
  81. 'show_next_prev' => true,
  82. 'show_week_links' => true,
  83. 'size' => 'large',
  84. );
  85. // Load up the main view.
  86. if ($context['view_week'])
  87. $context['calendar_grid_main'] = getCalendarWeek($curPage['month'], $curPage['year'], $curPage['day'], $calendarOptions);
  88. else
  89. $context['calendar_grid_main'] = getCalendarGrid($curPage['month'], $curPage['year'], $calendarOptions);
  90. // Load up the previous and next months.
  91. $calendarOptions['show_birthdays'] = $calendarOptions['show_events'] = $calendarOptions['show_holidays'] = false;
  92. $calendarOptions['short_day_titles'] = true;
  93. $calendarOptions['show_next_prev'] = false;
  94. $calendarOptions['show_week_links'] = false;
  95. $calendarOptions['size'] = 'small';
  96. $context['calendar_grid_current'] = getCalendarGrid($curPage['month'], $curPage['year'], $calendarOptions);
  97. // Only show previous month if it isn't pre-January of the min-year
  98. if ($context['calendar_grid_current']['previous_calendar']['year'] > $modSettings['cal_minyear'] || $curPage['month'] != 1)
  99. $context['calendar_grid_prev'] = getCalendarGrid($context['calendar_grid_current']['previous_calendar']['month'], $context['calendar_grid_current']['previous_calendar']['year'], $calendarOptions);
  100. // Only show next month if it isn't post-December of the max-year
  101. if ($context['calendar_grid_current']['next_calendar']['year'] < $modSettings['cal_maxyear'] || $curPage['month'] != 12)
  102. $context['calendar_grid_next'] = getCalendarGrid($context['calendar_grid_current']['next_calendar']['month'], $context['calendar_grid_current']['next_calendar']['year'], $calendarOptions);
  103. // Basic template stuff.
  104. $context['can_post'] = allowedTo('calendar_post');
  105. $context['current_day'] = $curPage['day'];
  106. $context['current_month'] = $curPage['month'];
  107. $context['current_year'] = $curPage['year'];
  108. $context['show_all_birthdays'] = isset($_GET['showbd']);
  109. // Set the page title to mention the month or week, too
  110. $context['page_title'] .= ' - ' . ($context['view_week'] ? sprintf($txt['calendar_week_title'], $context['calendar_grid_main']['week_number'], ($context['calendar_grid_main']['week_number'] == 53 ? $context['current_year'] - 1 : $context['current_year'])) : $txt['months'][$context['current_month']] . ' ' . $context['current_year']);
  111. // Load up the linktree!
  112. $context['linktree'][] = array(
  113. 'url' => $scripturl . '?action=calendar',
  114. 'name' => $txt['calendar']
  115. );
  116. // Add the current month to the linktree.
  117. $context['linktree'][] = array(
  118. 'url' => $scripturl . '?action=calendar;year=' . $context['current_year'] . ';month=' . $context['current_month'],
  119. 'name' => $txt['months'][$context['current_month']] . ' ' . $context['current_year']
  120. );
  121. // If applicable, add the current week to the linktree.
  122. if ($context['view_week'])
  123. $context['linktree'][] = array(
  124. 'url' => $scripturl . '?action=calendar;viewweek;year=' . $context['current_year'] . ';month=' . $context['current_month'] . ';day=' . $context['current_day'],
  125. 'name' => $txt['calendar_week'] . ' ' . $context['calendar_grid_main']['week_number']
  126. );
  127. }
  128. /**
  129. * This function processes posting/editing/deleting a calendar event.
  130. * - calls Post() function if event is linked to a post.
  131. * - calls insertEvent() to insert the event if not linked to post.
  132. * It requires the calendar_post permission to use.
  133. * It uses the event_post sub template in the Calendar template.
  134. * It is accessed with ?action=calendar;sa=post.
  135. */
  136. function CalendarPost()
  137. {
  138. global $context, $txt, $user_info, $sourcedir, $scripturl;
  139. global $modSettings, $topic, $smcFunc;
  140. // Well - can they?
  141. isAllowedTo('calendar_post');
  142. // We need this for all kinds of useful functions.
  143. require_once($sourcedir . '/Subs-Calendar.php');
  144. // Cast this for safety...
  145. if (isset($_REQUEST['eventid']))
  146. $_REQUEST['eventid'] = (int) $_REQUEST['eventid'];
  147. // Submitting?
  148. if (isset($_POST[$context['session_var']], $_REQUEST['eventid']))
  149. {
  150. checkSession();
  151. // Validate the post...
  152. if (!isset($_POST['link_to_board']))
  153. validateEventPost();
  154. // If you're not allowed to edit any events, you have to be the poster.
  155. if ($_REQUEST['eventid'] > 0 && !allowedTo('calendar_edit_any'))
  156. isAllowedTo('calendar_edit_' . (!empty($user_info['id']) && getEventPoster($_REQUEST['eventid']) == $user_info['id'] ? 'own' : 'any'));
  157. // New - and directing?
  158. if ($_REQUEST['eventid'] == -1 && isset($_POST['link_to_board']))
  159. {
  160. $_REQUEST['calendar'] = 1;
  161. require_once($sourcedir . '/Post.php');
  162. return Post();
  163. }
  164. // New...
  165. elseif ($_REQUEST['eventid'] == -1)
  166. {
  167. $eventOptions = array(
  168. 'board' => 0,
  169. 'topic' => 0,
  170. 'title' => substr($_REQUEST['evtitle'], 0, 60),
  171. 'member' => $user_info['id'],
  172. 'start_date' => sprintf('%04d-%02d-%02d', $_POST['year'], $_POST['month'], $_POST['day']),
  173. 'span' => isset($_POST['span']) && $_POST['span'] > 0 ? min((int) $modSettings['cal_maxspan'], (int) $_POST['span'] - 1) : 0,
  174. );
  175. insertEvent($eventOptions);
  176. }
  177. // Deleting...
  178. elseif (isset($_REQUEST['deleteevent']))
  179. removeEvent($_REQUEST['eventid']);
  180. // ... or just update it?
  181. else
  182. {
  183. // There could be already a topic you are not allowed to modify
  184. if (!allowedTo('post_new') && empty($modSettings['disableNoPostingCalendarEdits']))
  185. {
  186. $request = $smcFunc['db_query']('', '
  187. SELECT id_board, id_topic
  188. FROM {db_prefix}calendar
  189. WHERE id_event = {int:id_event}
  190. LIMIT 1',
  191. array(
  192. 'id_event' => $_REQUEST['eventid'],
  193. ));
  194. list ($id_board, $id_topic) = $smcFunc['db_fetch_row']($request);
  195. $smcFunc['db_free_result']($request);
  196. }
  197. $eventOptions = array(
  198. 'title' => substr($_REQUEST['evtitle'], 0, 60),
  199. 'span' => empty($modSettings['cal_allowspan']) || empty($_POST['span']) || $_POST['span'] == 1 || empty($modSettings['cal_maxspan']) || $_POST['span'] > $modSettings['cal_maxspan'] ? 0 : min((int) $modSettings['cal_maxspan'], (int) $_POST['span'] - 1),
  200. 'start_date' => strftime('%Y-%m-%d', mktime(0, 0, 0, (int) $_REQUEST['month'], (int) $_REQUEST['day'], (int) $_REQUEST['year'])),
  201. );
  202. modifyEvent($_REQUEST['eventid'], $eventOptions);
  203. }
  204. updateSettings(array(
  205. 'calendar_updated' => time(),
  206. ));
  207. // No point hanging around here now...
  208. redirectexit($scripturl . '?action=calendar;month=' . $_POST['month'] . ';year=' . $_POST['year']);
  209. }
  210. // If we are not enabled... we are not enabled.
  211. if (empty($modSettings['cal_allow_unlinked']) && empty($_REQUEST['eventid']))
  212. {
  213. $_REQUEST['calendar'] = 1;
  214. require_once($sourcedir . '/Post.php');
  215. return Post();
  216. }
  217. // New?
  218. if (!isset($_REQUEST['eventid']))
  219. {
  220. $today = getdate();
  221. $context['event'] = array(
  222. 'boards' => array(),
  223. 'board' => 0,
  224. 'new' => 1,
  225. 'eventid' => -1,
  226. 'year' => isset($_REQUEST['year']) ? $_REQUEST['year'] : $today['year'],
  227. 'month' => isset($_REQUEST['month']) ? $_REQUEST['month'] : $today['mon'],
  228. 'day' => isset($_REQUEST['day']) ? $_REQUEST['day'] : $today['mday'],
  229. 'title' => '',
  230. 'span' => 1,
  231. );
  232. $context['event']['last_day'] = (int) strftime('%d', mktime(0, 0, 0, $context['event']['month'] == 12 ? 1 : $context['event']['month'] + 1, 0, $context['event']['month'] == 12 ? $context['event']['year'] + 1 : $context['event']['year']));
  233. // Get list of boards that can be posted in.
  234. $boards = boardsAllowedTo('post_new');
  235. if (empty($boards))
  236. fatal_lang_error('cannot_post_new', 'permission');
  237. // Load the list of boards and categories in the context.
  238. require_once($sourcedir . '/Subs-MessageIndex.php');
  239. $boardListOptions = array(
  240. 'included_boards' => in_array(0, $boards) ? null : $boards,
  241. 'not_redirection' => true,
  242. 'use_permissions' => true,
  243. 'selected_board' => $modSettings['cal_defaultboard'],
  244. );
  245. $context['event']['categories'] = getBoardList($boardListOptions);
  246. }
  247. else
  248. {
  249. $context['event'] = getEventProperties($_REQUEST['eventid']);
  250. if ($context['event'] === false)
  251. fatal_lang_error('no_access', false);
  252. // If it has a board, then they should be editing it within the topic.
  253. if (!empty($context['event']['topic']['id']) && !empty($context['event']['topic']['first_msg']))
  254. {
  255. // We load the board up, for a check on the board access rights...
  256. $topic = $context['event']['topic']['id'];
  257. loadBoard();
  258. }
  259. // Make sure the user is allowed to edit this event.
  260. if ($context['event']['member'] != $user_info['id'])
  261. isAllowedTo('calendar_edit_any');
  262. elseif (!allowedTo('calendar_edit_any'))
  263. isAllowedTo('calendar_edit_own');
  264. }
  265. // Template, sub template, etc.
  266. loadTemplate('Calendar');
  267. $context['sub_template'] = 'event_post';
  268. $context['page_title'] = isset($_REQUEST['eventid']) ? $txt['calendar_edit'] : $txt['calendar_post_event'];
  269. $context['linktree'][] = array(
  270. 'name' => $context['page_title'],
  271. );
  272. }
  273. /**
  274. * This function offers up a download of an event in iCal 2.0 format.
  275. * @todo lol... User interface! :P
  276. */
  277. function iCalDownload()
  278. {
  279. global $smcFunc, $sourcedir, $forum_version, $context, $modSettings;
  280. // Goes without saying that this is required.
  281. if (!isset($_REQUEST['eventid']))
  282. fatal_lang_error('no_access', false);
  283. // This is kinda wanted.
  284. require_once($sourcedir . '/Subs-Calendar.php');
  285. // Load up the event in question and check it exists.
  286. $event = getEventProperties($_REQUEST['eventid']);
  287. if ($event === false)
  288. fatal_lang_error('no_access', false);
  289. // Check the title isn't too long - iCal requires some formatting if so.
  290. $title = str_split($event['title'], 30);
  291. foreach ($title as $id => $line)
  292. {
  293. if ($id != 0)
  294. $title[$id] = ' ' . $title[$id];
  295. $title[$id] .= "\n";
  296. }
  297. // Format the date.
  298. $date = $event['year'] . '-' . ($event['month'] < 10 ? '0' . $event['month'] : $event['month']) . '-' . ($event['day'] < 10 ? '0' . $event['day'] : $event['day']) . 'T';
  299. $date .= '1200:00:00Z';
  300. // This is what we will be sending later.
  301. $filecontents = '';
  302. $filecontents .= 'BEGIN:VCALENDAR' . "\n";
  303. $filecontents .= 'VERSION:2.0' . "\n";
  304. $filecontents .= 'PRODID:-//SimpleMachines//SMF ' . (empty($forum_version) ? 1.0 : strtr($forum_version, array('SMF ' => ''))) . '//EN' . "\n";
  305. $filecontents .= 'BEGIN:VEVENT' . "\n";
  306. $filecontents .= 'DTSTART:' . $date . "\n";
  307. $filecontents .= 'DTEND:' . $date . "\n";
  308. $filecontents .= 'SUMMARY:' . implode('', $title);
  309. $filecontents .= 'END:VEVENT' . "\n";
  310. $filecontents .= 'END:VCALENDAR';
  311. // Send some standard headers.
  312. ob_end_clean();
  313. if (!empty($modSettings['enableCompressedOutput']))
  314. @ob_start('ob_gzhandler');
  315. else
  316. ob_start();
  317. // Send the file headers
  318. header('Pragma: ');
  319. header('Cache-Control: no-cache');
  320. if (!isBrowser('gecko'))
  321. header('Content-Transfer-Encoding: binary');
  322. header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 525600 * 60) . ' GMT');
  323. header('Last-Modified: ' . gmdate('D, d M Y H:i:s', time()) . 'GMT');
  324. header('Accept-Ranges: bytes');
  325. header('Connection: close');
  326. header('Content-Disposition: attachment; filename=' . $event['title'] . '.ics');
  327. header('Content-Length: ' . $smcFunc['strlen']($filecontents));
  328. // This is a calendar item!
  329. header('Content-Type: text/calendar');
  330. // Chuck out the card.
  331. echo $filecontents;
  332. // Off we pop - lovely!
  333. obExit(false);
  334. }
  335. /**
  336. * Nothing to see here. Move along.
  337. */
  338. function clock()
  339. {
  340. global $settings, $context;
  341. $context['onimg'] = $settings['images_url'] . '/bbc/bbc_bg.gif';
  342. $context['offimg'] = $settings['images_url'] . '/bbc/bbc_hoverbg.gif';
  343. $context['page_title'] = 'Anyone know what time it is?';
  344. $context['robot_no_index'] = true;
  345. $omfg = isset($_REQUEST['omfg']);
  346. $bcd = !isset($_REQUEST['rb']) && !isset($_REQUEST['omfg']) && !isset($_REQUEST['time']);
  347. loadTemplate('Calendar');
  348. if ($bcd && !$omfg)
  349. {
  350. $context['sub_template'] = 'bcd';
  351. $context['clockicons'] = unserialize(base64_decode('YTo2OntzOjI6ImgxIjthOjI6e2k6MDtpOjI7aToxO2k6MTt9czoyOiJoMiI7YTo0OntpOjA7aTo4O2k6MTtpOjQ7aToyO2k6MjtpOjM7aToxO31zOjI6Im0xIjthOjM6e2k6MDtpOjQ7aToxO2k6MjtpOjI7aToxO31zOjI6Im0yIjthOjQ6e2k6MDtpOjg7aToxO2k6NDtpOjI7aToyO2k6MztpOjE7fXM6MjoiczEiO2E6Mzp7aTowO2k6NDtpOjE7aToyO2k6MjtpOjE7fXM6MjoiczIiO2E6NDp7aTowO2k6ODtpOjE7aTo0O2k6MjtpOjI7aTozO2k6MTt9fQ=='));
  352. }
  353. elseif (!$omfg && !isset($_REQUEST['time']))
  354. {
  355. $context['sub_template'] = 'hms';
  356. $context['clockicons'] = unserialize(base64_decode('YTozOntzOjE6ImgiO2E6NTp7aTowO2k6MTY7aToxO2k6ODtpOjI7aTo0O2k6MztpOjI7aTo0O2k6MTt9czoxOiJtIjthOjY6e2k6MDtpOjMyO2k6MTtpOjE2O2k6MjtpOjg7aTozO2k6NDtpOjQ7aToyO2k6NTtpOjE7fXM6MToicyI7YTo2OntpOjA7aTozMjtpOjE7aToxNjtpOjI7aTo4O2k6MztpOjQ7aTo0O2k6MjtpOjU7aToxO319'));
  357. }
  358. elseif ($omfg)
  359. {
  360. $context['sub_template'] = 'omfg';
  361. $context['clockicons'] = unserialize(base64_decode('YTo2OntzOjQ6InllYXIiO2E6Nzp7aTowO2k6NjQ7aToxO2k6MzI7aToyO2k6MTY7aTozO2k6ODtpOjQ7aTo0O2k6NTtpOjI7aTo2O2k6MTt9czo1OiJtb250aCI7YTo0OntpOjA7aTo4O2k6MTtpOjQ7aToyO2k6MjtpOjM7aToxO31zOjM6ImRheSI7YTo1OntpOjA7aToxNjtpOjE7aTo4O2k6MjtpOjQ7aTozO2k6MjtpOjQ7aToxO31zOjQ6ImhvdXIiO2E6NTp7aTowO2k6MTY7aToxO2k6ODtpOjI7aTo0O2k6MztpOjI7aTo0O2k6MTt9czozOiJtaW4iO2E6Njp7aTowO2k6MzI7aToxO2k6MTY7aToyO2k6ODtpOjM7aTo0O2k6NDtpOjI7aTo1O2k6MTt9czozOiJzZWMiO2E6Njp7aTowO2k6MzI7aToxO2k6MTY7aToyO2k6ODtpOjM7aTo0O2k6NDtpOjI7aTo1O2k6MTt9fQ=='));
  362. }
  363. elseif (isset($_REQUEST['time']))
  364. {
  365. $context['sub_template'] = 'thetime';
  366. $time = getdate($_REQUEST['time'] == 'now' ? time() : (int) $_REQUEST['time']);
  367. $context['clockicons'] = array(
  368. 'year' => array(
  369. 64 => false,
  370. 32 => false,
  371. 16 => false,
  372. 8 => false,
  373. 4 => false,
  374. 2 => false,
  375. 1 => false
  376. ),
  377. 'month' => array(
  378. 8 => false,
  379. 4 => false,
  380. 2 => false,
  381. 1 => false
  382. ),
  383. 'day' => array(
  384. 16 => false,
  385. 4 => false,
  386. 8 => false,
  387. 2 => false,
  388. 1 => false
  389. ),
  390. 'hour' => array(
  391. 32 => false,
  392. 16 => false,
  393. 8 => false,
  394. 4 => false,
  395. 2 => false,
  396. 1 => false
  397. ),
  398. 'min' => array(
  399. 32 => false,
  400. 16 => false,
  401. 8 => false,
  402. 4 => false,
  403. 2 => false,
  404. 1 => false
  405. ),
  406. 'sec' => array(
  407. 32 => false,
  408. 16 => false,
  409. 8 => false,
  410. 4 => false,
  411. 2 => false,
  412. 1 => false
  413. ),
  414. );
  415. $year = $time['year'] % 100;
  416. $month = $time['mon'];
  417. $day = $time['mday'];
  418. $hour = $time['hours'];
  419. $min = $time['minutes'];
  420. $sec = $time['seconds'];
  421. foreach ($context['clockicons'] as $t => $vs)
  422. foreach ($vs as $v => $dumb)
  423. {
  424. if ($$t >= $v)
  425. {
  426. $$t -= $v;
  427. $context['clockicons'][$t][$v] = true;
  428. }
  429. }
  430. }
  431. }
  432. ?>