Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file include/datetime.php
* @brief Some functions for date and time related tasks.
*/
use Friendica\Core\Config;
use Friendica\Core\PConfig;
use Friendica\Database\DBM;
/**
* @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;
} elseif (strstr($b, '/')) {
return 1;
} elseif ( t($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, [
'$field' => [$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) <= '0001-01-01') {
$d = new DateTime($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');
if ($dob <= '0001-01-01') {
$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"]) : "");
$o = replace_macros(get_markup_template("field_input.tpl"), [
'$field' => [
'dob',
t('Birthday:'),
$value,
(((intval($age)) > 0 ) ? t('Age: ') . $age : ""),
'',
'placeholder="' . t('YYYY-MM-DD or MM-DD') . '"'
]
]);
/// @TODO Old-lost code?
// if ($dob && $dob > '0001-01-01')
// $o = datesel($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 $min
* Unix timestamp of minimum date
* @param string $max
* Unix timestap of maximum date
* @param string $default
* Unix timestamp of default date
* @param string $id
* ID and name of datetimepicker (defaults to "datetimepicker")
*
* @return string Parsed HTML output.
*/
function datesel($min, $max, $default, $id = 'datepicker')
{
return datetimesel($min, $max, $default, '', $id, true, false, '', '');
}
/**
* @brief Returns a time selector
*
* @param $h
* Already selected hour
* @param $m
* Already selected minute
* @param string $id
* ID and name of datetimepicker (defaults to "timepicker")
*
* @return string Parsed HTML output.
*/
function timesel($h, $m, $id = 'timepicker')
{
return datetimesel(new DateTime(), new DateTime(), new DateTime("$h:$m"), '', $id, false, true);
}
/**
* @brief Returns a datetime selector.
*
* @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 $required default false
*
* @return string Parsed HTML output.
*
* @todo Once browser support is better this could probably be replaced with
* native HTML5 date picker.
*/
function datetimesel($min, $max, $default, $label, $id = 'datetimepicker', $pickdate = true, $picktime = true, $minfrom = '', $maxfrom = '', $required = false)
{
// First day of the week (0 = Sunday)
$firstDay = PConfig::get(local_user(), 'system', 'first_day_of_week', 0);
$lang = substr(get_browser_language(), 0, 2);
// Check if the detected language is supported by the picker
if (!in_array($lang, ["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 = Config::get('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, [
'$field' => [$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 <= NULL_DATE || $abs === False) {
return t('never');
}
$etime = time() - $abs;
if ($etime < 1) {
return t('less than a second ago');
}
$a = [ 12 * 30 * 24 * 60 * 60 => [ t('year'), t('years')],
30 * 24 * 60 * 60 => [ t('month'), t('months')],
7 * 24 * 60 * 60 => [ t('week'), t('weeks')],
24 * 60 * 60 => [ t('day'), t('days')],
60 * 60 => [ t('hour'), t('hours')],
60 => [ t('minute'), t('minutes')],
1 => [ t('second'), t('seconds')]
];
foreach ($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) {
$dim = [ 0,
31, 28, 31, 30, 31, 30,
31, 31, 30, 31, 30, 31];
if ($m != 2) {
return $dim[$m];
} elseif (((($y % 4) == 0) && (($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 array $links (default null)
* @param string $class
*
* @return string
*
* @todo Provide (prev,next) links, define class variations for different size calendars
*/
function cal($y = 0, $m = 0, $links = null, $class = '')
{
// month table - start at 1 to match human usage.
$mtab = [' ',
'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 = ['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(' ', '&nbsp;', sprintf('%2.2d', $d));
if ($started) {
if (x($links, $d) !== false) {
$o .= "<a href=\"{$links[$d]}\">$day</a>";
} else {
$o .= $day;
}
$d ++;
} else {
$o .= '&nbsp;';
}
$o .= '</td>';
$dow ++;
if (($dow == 7) && ($d <= $l)) {
$dow = 0;
$o .= '</tr><tr>';
}
}
if ($dow) {
for ($a = $dow; $a < 7; $a ++) {
$o .= '<td>&nbsp;</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
$r = q("SELECT * FROM `contact` WHERE `bd` != '' AND `bd` > '0001-01-01' AND SUBSTRING(`bd`, 1, 4) != `bdyear` ");
if (DBM::is_result($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.
*/
// Check for duplicates
$s = q("SELECT `id` FROM `event` WHERE `uid` = %d AND `cid` = %d AND `start` = '%s' AND `type` = '%s' LIMIT 1",
intval($rr['uid']),
intval($rr['id']),
dbesc(datetime_convert('UTC','UTC', $nextbd)),
dbesc('birthday'));
if (DBM::is_result($s)) {
continue;
}
$bdtext = sprintf( t('%s\'s birthday'), $rr['name']);
$bdtext2 = sprintf( t('Happy Birthday %s'), ' [url=' . $rr['url'] . ']' . $rr['name'] . '[/url]') ;
q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`,`adjust`)
VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%d' ) ",
intval($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'])
);
}
}
}