<?php /** * @file include/datetime.php * @brief Some functions for date and time related tasks. */ /** * @brief Two-level sort for timezones. * * @param string $a * @param string $b * @return int */ function timezone_cmp($a, $b) { if(strstr($a,'/') && strstr($b,'/')) { if ( t($a) == t($b)) return 0; return ( t($a) < t($b)) ? -1 : 1; } if(strstr($a,'/')) return -1; if(strstr($b,'/')) return 1; if ( t($a) == t($b)) return 0; return ( t($a) < t($b)) ? -1 : 1; } /** * @brief Emit a timezone selector grouped (primarily) by continent * * @param string $current Timezone * @return string Parsed HTML output */ function select_timezone($current = 'America/Los_Angeles') { $timezone_identifiers = DateTimeZone::listIdentifiers(); $o ='<select id="timezone_select" name="timezone">'; usort($timezone_identifiers, 'timezone_cmp'); $continent = ''; foreach($timezone_identifiers as $value) { $ex = explode("/", $value); if(count($ex) > 1) { if($ex[0] != $continent) { if($continent != '') $o .= '</optgroup>'; $continent = $ex[0]; $o .= '<optgroup label="' . t($continent) . '">'; } if(count($ex) > 2) $city = substr($value,strpos($value,'/')+1); else $city = $ex[1]; } else { $city = $ex[0]; if($continent != t('Miscellaneous')) { $o .= '</optgroup>'; $continent = t('Miscellaneous'); $o .= '<optgroup label="' . t($continent) . '">'; } } $city = str_replace('_', ' ', t($city)); $selected = (($value == $current) ? " selected=\"selected\" " : ""); $o .= "<option value=\"$value\" $selected >$city</option>"; } $o .= '</optgroup></select>'; return $o; } /** * @brief Generating a Timezone selector * * Return a select using 'field_select_raw' template, with timezones * groupped (primarily) by continent * arguments follow convetion as other field_* template array: * 'name', 'label', $value, 'help' * * @param string $name Name of the selector * @param string $label Label for the selector * @param string $current Timezone * @param string $help Help text * * @return string Parsed HTML */ function field_timezone($name='timezone', $label='', $current = 'America/Los_Angeles', $help){ $options = select_timezone($current); $options = str_replace('<select id="timezone_select" name="timezone">','', $options); $options = str_replace('</select>','', $options); $tpl = get_markup_template('field_select_raw.tpl'); return replace_macros($tpl, array( '$field' => array($name, $label, $current, $help, $options), )); } /** * @brief General purpose date parse/convert function. * * @param string $from Source timezone * @param string $to Dest timezone * @param string $s Some parseable date/time string * @param string $fmt Output format recognised from php's DateTime class * http://www.php.net/manual/en/datetime.format.php * * @return string Formatted date according to given format */ function datetime_convert($from = 'UTC', $to = 'UTC', $s = 'now', $fmt = "Y-m-d H:i:s") { // Defaults to UTC if nothing is set, but throws an exception if set to empty string. // Provide some sane defaults regardless. if($from === '') $from = 'UTC'; if($to === '') $to = 'UTC'; if( ($s === '') || (! is_string($s)) ) $s = 'now'; // Slight hackish adjustment so that 'zero' datetime actually returns what is intended // otherwise we end up with -0001-11-30 ... // add 32 days so that we at least get year 00, and then hack around the fact that // months and days always start with 1. if(substr($s,0,10) == '0000-00-00') { $d = new DateTime($s . ' + 32 days', new DateTimeZone('UTC')); return str_replace('1','0',$d->format($fmt)); } try { $from_obj = new DateTimeZone($from); } catch(Exception $e) { $from_obj = new DateTimeZone('UTC'); } try { $d = new DateTime($s, $from_obj); } catch(Exception $e) { logger('datetime_convert: exception: ' . $e->getMessage()); $d = new DateTime('now', $from_obj); } try { $to_obj = new DateTimeZone($to); } catch(Exception $e) { $to_obj = new DateTimeZone('UTC'); } $d->setTimeZone($to_obj); return($d->format($fmt)); } /** * @brief Wrapper for date selector, tailored for use in birthday fields. * * @param string $dob Date of Birth * @return string Formatted html */ function dob($dob) { list($year,$month,$day) = sscanf($dob,'%4d-%2d-%2d'); $f = get_config('system','birthday_input_format'); if(! $f) $f = 'ymd'; if($dob === '0000-00-00') $value = ''; else $value = (($year) ? datetime_convert('UTC','UTC',$dob,'Y-m-d') : datetime_convert('UTC','UTC',$dob,'m-d')); $age = ((intval($value)) ? age($value, $a->user["timezone"], $a->user["timezone"]) : ""); $o = replace_macros(get_markup_template("field_input.tpl"), array( '$field' => array( 'dob', t('Birthday:'), $value, (((intval($age)) > 0 ) ? t('Age: ') . $age : ""), '', 'placeholder="' . t('YYYY-MM-DD or MM-DD') . '"' ) )); // if ($dob && $dob != '0000-00-00') // $o = datesel($f,mktime(0,0,0,0,0,1900),mktime(),mktime(0,0,0,$month,$day,$year),'dob'); // else // $o = datesel($f,mktime(0,0,0,0,0,1900),mktime(),false,'dob'); return $o; } /** * @brief Returns a date selector * * @param string $format * Format string, e.g. 'ymd' or 'mdy'. Not currently supported * @param string $min * Unix timestamp of minimum date * @param string $max * Unix timestap of maximum date * @param string $default * Unix timestamp of default date * @param string $id * ID and name of datetimepicker (defaults to "datetimepicker") * * @return string Parsed HTML output. */ function datesel($format, $min, $max, $default, $id = 'datepicker') { return datetimesel($format,$min,$max,$default,'',$id,true,false, '',''); } /** * @brief Returns a time selector * * @param string $format * Format string, e.g. 'ymd' or 'mdy'. Not currently supported * @param $h * Already selected hour * @param $m * Already selected minute * @param string $id * ID and name of datetimepicker (defaults to "timepicker") * * @return string Parsed HTML output. */ function timesel($format, $h, $m, $id='timepicker') { return datetimesel($format,new DateTime(),new DateTime(),new DateTime("$h:$m"),'',$id,false,true); } /** * @brief Returns a datetime selector. * * @param string $format * format string, e.g. 'ymd' or 'mdy'. Not currently supported * @param string $min * unix timestamp of minimum date * @param string $max * unix timestap of maximum date * @param string $default * unix timestamp of default date * @param string $id * id and name of datetimepicker (defaults to "datetimepicker") * @param bool $pickdate * true to show date picker (default) * @param boolean $picktime * true to show time picker (default) * @param $minfrom * set minimum date from picker with id $minfrom (none by default) * @param $maxfrom * set maximum date from picker with id $maxfrom (none by default) * @param bool $required default false * * @return string Parsed HTML output. * * @todo Once browser support is better this could probably be replaced with * native HTML5 date picker. */ function datetimesel($format, $min, $max, $default, $label, $id = 'datetimepicker', $pickdate = true, $picktime = true, $minfrom = '', $maxfrom = '', $required = false) { // First day of the week (0 = Sunday) $firstDay = get_pconfig(local_user(),'system','first_day_of_week'); if ($firstDay === false) $firstDay=0; $lang = substr(get_browser_language(), 0, 2); // Check if the detected language is supported by the picker if (!in_array($lang, array("ar", "ro", "id", "bg", "fa", "ru", "uk", "en", "el", "de", "nl", "tr", "fr", "es", "th", "pl", "pt", "ch", "se", "kr", "it", "da", "no", "ja", "vi", "sl", "cs", "hu"))) $lang = ((isset($a->config['system']['language'])) ? $a->config['system']['language'] : 'en'); $o = ''; $dateformat = ''; if($pickdate) $dateformat .= 'Y-m-d'; if($pickdate && $picktime) $dateformat .= ' '; if($picktime) $dateformat .= 'H:i'; $minjs = $min ? ",minDate: new Date({$min->getTimestamp()}*1000), yearStart: " . $min->format('Y') : ''; $maxjs = $max ? ",maxDate: new Date({$max->getTimestamp()}*1000), yearEnd: " . $max->format('Y') : ''; $input_text = $default ? date($dateformat, $default->getTimestamp()) : ''; $defaultdatejs = $default ? ",defaultDate: new Date({$default->getTimestamp()}*1000)" : ''; $pickers = ''; if(!$pickdate) $pickers .= ',datepicker: false'; if(!$picktime) $pickers .= ',timepicker: false'; $extra_js = ''; $pickers .= ",dayOfWeekStart: ".$firstDay.",lang:'".$lang."'"; if($minfrom != '') $extra_js .= "\$('#id_$minfrom').data('xdsoft_datetimepicker').setOptions({onChangeDateTime: function (currentDateTime) { \$('#id_$id').data('xdsoft_datetimepicker').setOptions({minDate: currentDateTime})}})"; if($maxfrom != '') $extra_js .= "\$('#id_$maxfrom').data('xdsoft_datetimepicker').setOptions({onChangeDateTime: function (currentDateTime) { \$('#id_$id').data('xdsoft_datetimepicker').setOptions({maxDate: currentDateTime})}})"; $readable_format = $dateformat; $readable_format = str_replace('Y','yyyy',$readable_format); $readable_format = str_replace('m','mm',$readable_format); $readable_format = str_replace('d','dd',$readable_format); $readable_format = str_replace('H','HH',$readable_format); $readable_format = str_replace('i','MM',$readable_format); $tpl = get_markup_template('field_input.tpl'); $o .= replace_macros($tpl,array( '$field' => array($id, $label, $input_text, '', (($required) ? '*' : ''), 'placeholder="' . $readable_format . '"'), )); $o .= "<script type='text/javascript'>"; $o .= "\$(function () {var picker = \$('#id_$id').datetimepicker({step:5,format:'$dateformat' $minjs $maxjs $pickers $defaultdatejs}); $extra_js})"; $o .= "</script>"; return $o; } /** * @brief Returns a relative date string. * * Implements "3 seconds ago" etc. * Based on $posted_date, (UTC). * Results relative to current timezone. * Limited to range of timestamps. * * @param string $posted_date MySQL-formatted date string (YYYY-MM-DD HH:MM:SS) * @param string $format (optional) Parsed with sprintf() * <tt>%1$d %2$s ago</tt>, e.g. 22 hours ago, 1 minute ago * * @return string with relative date */ function relative_date($posted_date, $format = null) { $localtime = $posted_date . ' UTC'; $abs = strtotime($localtime); if (is_null($posted_date) || $posted_date === '0000-00-00 00:00:00' || $abs === False) { return t('never'); } $etime = time() - $abs; if ($etime < 1) { return t('less than a second ago'); } $a = array( 12 * 30 * 24 * 60 * 60 => array( t('year'), t('years')), 30 * 24 * 60 * 60 => array( t('month'), t('months')), 7 * 24 * 60 * 60 => array( t('week'), t('weeks')), 24 * 60 * 60 => array( t('day'), t('days')), 60 * 60 => array( t('hour'), t('hours')), 60 => array( t('minute'), t('minutes')), 1 => array( t('second'), t('seconds')) ); foreach ($a as $secs => $str) { $d = $etime / $secs; if ($d >= 1) { $r = round($d); // translators - e.g. 22 hours ago, 1 minute ago if (!$format) { $format = t('%1$d %2$s ago'); } return sprintf($format, $r, (($r == 1) ? $str[0] : $str[1])); } } } /** * @brief Returns timezone correct age in years. * * Returns the age in years, given a date of birth, the timezone of the person * whose date of birth is provided, and the timezone of the person viewing the * result. * * Why? Bear with me. Let's say I live in Mittagong, Australia, and my birthday * is on New Year's. You live in San Bruno, California. * When exactly are you going to see my age increase? * * A: 5:00 AM Dec 31 San Bruno time. That's precisely when I start celebrating * and become a year older. If you wish me happy birthday on January 1 * (San Bruno time), you'll be a day late. * * @param string $dob Date of Birth * @param string $owner_tz (optional) Timezone of the person of interest * @param string $viewer_tz (optional) Timezone of the person viewing * * @return int Age in years */ function age($dob,$owner_tz = '',$viewer_tz = '') { if(! intval($dob)) return 0; if(! $owner_tz) $owner_tz = date_default_timezone_get(); if(! $viewer_tz) $viewer_tz = date_default_timezone_get(); $birthdate = datetime_convert('UTC',$owner_tz,$dob . ' 00:00:00+00:00','Y-m-d'); list($year,$month,$day) = explode("-",$birthdate); $year_diff = datetime_convert('UTC',$viewer_tz,'now','Y') - $year; $curr_month = datetime_convert('UTC',$viewer_tz,'now','m'); $curr_day = datetime_convert('UTC',$viewer_tz,'now','d'); if(($curr_month < $month) || (($curr_month == $month) && ($curr_day < $day))) $year_diff--; return $year_diff; } /** * @brief Get days of a month in a given year. * * Returns number of days in the month of the given year. * $m = 1 is 'January' to match human usage. * * @param int $y Year * @param int $m Month (1=January, 12=December) * * @return int Number of days in the given month */ function get_dim($y,$m) { $dim = array( 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); if($m != 2) return $dim[$m]; if(((($y % 4) == 0) && (($y % 100) != 0)) || (($y % 400) == 0)) return 29; return $dim[2]; } /** * @brief Returns the first day in month for a given month, year. * * Months start at 1. * * @param int $y Year * @param int $m Month (1=January, 12=December) * * @return string day 0 = Sunday through 6 = Saturday */ function get_first_dim($y,$m) { $d = sprintf('%04d-%02d-01 00:00', intval($y), intval($m)); return datetime_convert('UTC','UTC',$d,'w'); } /** * @brief Output a calendar for the given month, year. * * If $links are provided (array), e.g. $links[12] => 'http://mylink' , * date 12 will be linked appropriately. Today's date is also noted by * altering td class. * Months count from 1. * * @param int $y Year * @param int $m Month * @param bool $links (default false) * @param string $class * * @return string * * @todo Provide (prev,next) links, define class variations for different size calendars */ function cal($y = 0,$m = 0, $links = false, $class='') { // month table - start at 1 to match human usage. $mtab = array(' ', 'January','February','March', 'April','May','June', 'July','August','September', 'October','November','December' ); $thisyear = datetime_convert('UTC',date_default_timezone_get(),'now','Y'); $thismonth = datetime_convert('UTC',date_default_timezone_get(),'now','m'); if(! $y) $y = $thisyear; if(! $m) $m = intval($thismonth); $dn = array('Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'); $f = get_first_dim($y,$m); $l = get_dim($y,$m); $d = 1; $dow = 0; $started = false; if(($y == $thisyear) && ($m == $thismonth)) $tddate = intval(datetime_convert('UTC',date_default_timezone_get(),'now','j')); $str_month = day_translate($mtab[$m]); $o = '<table class="calendar' . $class . '">'; $o .= "<caption>$str_month $y</caption><tr>"; for($a = 0; $a < 7; $a ++) $o .= '<th>' . mb_substr(day_translate($dn[$a]),0,3,'UTF-8') . '</th>'; $o .= '</tr><tr>'; while($d <= $l) { if(($dow == $f) && (! $started)) $started = true; $today = (((isset($tddate)) && ($tddate == $d)) ? "class=\"today\" " : ''); $o .= "<td $today>"; $day = str_replace(' ',' ',sprintf('%2.2d', $d)); if($started) { if(is_array($links) && isset($links[$d])) $o .= "<a href=\"{$links[$d]}\">$day</a>"; else $o .= $day; $d ++; } else { $o .= ' '; } $o .= '</td>'; $dow ++; if(($dow == 7) && ($d <= $l)) { $dow = 0; $o .= '</tr><tr>'; } } if($dow) for($a = $dow; $a < 7; $a ++) $o .= '<td> </td>'; $o .= '</tr></table>'."\r\n"; return $o; } /** * @brief Create a birthday event. * * Update the year and the birthday. */ function update_contact_birthdays() { // This only handles foreign or alien networks where a birthday has been provided. // In-network birthdays are handled within local_delivery $r = q("SELECT * FROM contact WHERE `bd` != '' AND `bd` != '0000-00-00' AND SUBSTRING(`bd`,1,4) != `bdyear` "); if (dbm::is_result($r)) { foreach ($r as $rr) { logger('update_contact_birthday: ' . $rr['bd']); $nextbd = datetime_convert('UTC','UTC','now','Y') . substr($rr['bd'],4); /** * * Add new birthday event for this person * * $bdtext is just a readable placeholder in case the event is shared * with others. We will replace it during presentation to our $importer * to contain a sparkle link and perhaps a photo. * */ $bdtext = sprintf( t('%s\'s birthday'), $rr['name']); $bdtext2 = sprintf( t('Happy Birthday %s'), ' [url=' . $rr['url'] . ']' . $rr['name'] . '[/url]') ; $r = q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`,`adjust`) VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%d' ) ", intval($rr['uid']), intval($rr['id']), dbesc(datetime_convert()), dbesc(datetime_convert()), dbesc(datetime_convert('UTC','UTC', $nextbd)), dbesc(datetime_convert('UTC','UTC', $nextbd . ' + 1 day ')), dbesc($bdtext), dbesc($bdtext2), dbesc('birthday'), intval(0) ); // update bdyear q("UPDATE `contact` SET `bdyear` = '%s', `bd` = '%s' WHERE `uid` = %d AND `id` = %d", dbesc(substr($nextbd,0,4)), dbesc($nextbd), intval($rr['uid']), intval($rr['id']) ); } } }