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<?php
/*********************************************************************
class.format.php
Collection of helper function used for formatting
Peter Rotich <peter@osticket.com>
Copyright (c) 2006-2013 osTicket
http://www.osticket.com
Released under the GNU General Public License WITHOUT ANY WARRANTY.
See LICENSE.TXT for details.
vim: expandtab sw=4 ts=4 sts=4:
**********************************************************************/
include_once INCLUDE_DIR.'class.charset.php';
require_once INCLUDE_DIR.'class.variable.php';
class Format {
static function file_size($bytes) {
if(!is_numeric($bytes))
return $bytes;
if($bytes<1024)
return $bytes.' bytes';
if($bytes < (900<<10))
return round(($bytes/1024),1).' kb';
return round(($bytes/1048576),1).' mb';
}
static function filesize2bytes($size) {
switch (substr($size, -1)) {
case 'M': case 'm': return (int)$size <<= 20;
case 'K': case 'k': return (int)$size <<= 10;
case 'G': case 'g': return (int)$size <<= 30;
}
return $size;
}
static function filename($filename) {
return preg_replace('/[^a-zA-Z0-9\-\._]/', '-', $filename);
}
static function mimedecode($text, $encoding='UTF-8') {
// Handle poorly or completely un-encoded header values (
if (function_exists('mb_detect_encoding'))
if (($src_enc = mb_detect_encoding($text))
&& (strcasecmp($src_enc, 'ASCII') !== 0))
return Charset::transcode($text, $src_enc, $encoding);
if(function_exists('imap_mime_header_decode')
&& ($parts = imap_mime_header_decode($text))) {
$str ='';
foreach ($parts as $part)
$str.= Charset::transcode($part->text, $part->charset, $encoding);
$text = $str;
} elseif($text[0] == '=' && function_exists('iconv_mime_decode')) {
$text = iconv_mime_decode($text, 0, $encoding);
} elseif(!strcasecmp($encoding, 'utf-8')
&& function_exists('imap_utf8')) {
$text = imap_utf8($text);
}
return $text;
}
/**
* Decodes filenames given in the content-disposition header according
* to RFC5987, such as filename*=utf-8''filename.png. Note that the
* language sub-component is defined in RFC5646, and that the filename
* is URL encoded (in the charset specified)
*/
static function decodeRfc5987($filename) {
$match = array();
if (preg_match("/([\w!#$%&+^_`{}~-]+)'([\w-]*)'(.*)$/",
$filename, $match))
// XXX: Currently we don't care about the language component.
// The encoding hint is sufficient.
return Charset::utf8(urldecode($match[3]), $match[1]);
else
return $filename;
}
/**
* Json Encoder
*
*/
static function json_encode($what) {
require_once (INCLUDE_DIR.'class.json.php');
return JsonDataEncoder::encode($what);
}
static function phone($phone) {
$stripped= preg_replace("/[^0-9]/", "", $phone);
if(strlen($stripped) == 7)
return preg_replace("/([0-9]{3})([0-9]{4})/", "$1-$2",$stripped);
elseif(strlen($stripped) == 10)
return preg_replace("/([0-9]{3})([0-9]{3})([0-9]{4})/", "($1) $2-$3",$stripped);
else
return $phone;
}
static function mask($str, $start = 0, $length = null, $mask="*") {
$mask = preg_replace("/\S/", $mask, $str);
if ($length)
$str = substr_replace($str, substr($mask, $start, $length), $start, $length);
else
$str = substr_replace ($str, substr($mask, $start), $start);
return $str;
}
static function shroud($str, $start=0, $length=null) {
$str = $length ? substr($str, 0, $length) : $str;
return self::mask($str, $start, $length);
}
static function truncate($string,$len,$hard=false) {
if(!$len || $len>strlen($string))
return $string;
$string = substr($string,0,$len);
return $hard?$string:(substr($string,0,strrpos($string,' ')).' ...');
}
static function strip_slashes($var) {
return is_array($var)?array_map(array('Format','strip_slashes'),$var):stripslashes($var);
}
static function wrap($text, $len=75) {
return $len ? wordwrap($text, $len, "\n", true) : $text;
}
static function html_balance($html, $remove_empty=true) {
if (!extension_loaded('dom'))
return $html;
if (!trim($html))
return $html;
$doc = new DomDocument();
$xhtml = '<?xml encoding="utf-8"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>'
// Wrap the content in a <div> because libxml would use a <p>
. "<div>$html</div>";
$doc->encoding = 'utf-8';
$doc->preserveWhitespace = false;
$doc->recover = true;
if (false === @$doc->loadHTML($xhtml))
return $html;
if ($remove_empty) {
// Remove empty nodes
$xpath = new DOMXPath($doc);
static $eE = array('area'=>1, 'br'=>1, 'col'=>1, 'embed'=>1,
'iframe' => 1, 'hr'=>1, 'img'=>1, 'input'=>1,
'isindex'=>1, 'param'=>1, 'div'=>1);
do {
$done = true;
$nodes = $xpath->query('//*[not(text()) and not(node())]');
foreach ($nodes as $n) {
if (isset($eE[$n->nodeName]))
continue;
$n->parentNode->removeChild($n);
$done = false;
}
} while (!$done);
}
static $phpversion;
if (!isset($phpversion))
$phpversion = phpversion();
$body = $doc->getElementsByTagName('body');
if (!$body->length)
return $html;
if ($phpversion > '5.3.6') {
$html = $doc->saveHTML($doc->getElementsByTagName('body')->item(0)->firstChild);
}
else {
$html = $doc->saveHTML();
$html = preg_replace('`^<!DOCTYPE.+?>|<\?xml .+?>|</?html>|</?body>|</?head>|<meta .+?/?>`', '', $html); # <?php
}
return preg_replace('`^<div>|</div>$`', '', trim($html));
}
static function html($html, $config=array()) {
require_once(INCLUDE_DIR.'htmLawed.php');
$spec = false;
if (isset($config['spec']))
$spec = $config['spec'];
// Add in htmLawed defaults
$config += array(
'balance' => 1,
);
// Attempt to balance using libxml. htmLawed will corrupt HTML with
// balancing to fix improper HTML at the same time. For instance,
// some email clients may wrap block elements inside inline
// elements. htmLawed will change such block elements to inlines to
// make the HTML correct.
if ($config['balance'] && extension_loaded('dom')) {
$html = self::html_balance($html);
$config['balance'] = 0;
}
return htmLawed($html, $config, $spec);
}
static function html2text($html, $width=74, $tidy=true) {
if (!$html)
return $html;
# Tidy html: decode, balance, sanitize tags
if($tidy)
$html = Format::html(Format::htmldecode($html), array('balance' => 1));
# See if advanced html2text is available (requires xml extension)
if (function_exists('convert_html_to_text')
&& extension_loaded('dom')
&& ($text = convert_html_to_text($html, $width)))
return $text;
# Try simple html2text - insert line breaks after new line tags.
$html = preg_replace(
array(':<br ?/?\>:i', ':(</div>)\s*:i', ':(</p>)\s*:i'),
array("\n", "$1\n", "$1\n\n"),
$html);
# Strip tags, decode html chars and wrap resulting text.
return Format::wrap(
Format::htmldecode( Format::striptags($html, false)),
$width);
}
static function __html_cleanup($el, $attributes=0) {
static $eE = array('area'=>1, 'br'=>1, 'col'=>1, 'embed'=>1,
'hr'=>1, 'img'=>1, 'input'=>1, 'isindex'=>1, 'param'=>1);
// We're dealing with closing tag
if ($attributes === 0)
return "</{$el}>";
// Remove iframe and embed without src (perhaps striped by spec)
// It would be awesome to rickroll such entry :)
if (in_array($el, array('iframe', 'embed'))
&& (!isset($attributes['src']) || empty($attributes['src'])))
return '';
// Clean unexpected class values
if (isset($attributes['class'])) {
$classes = explode(' ', $attributes['class']);
foreach ($classes as $i=>$a)
// Unset all unsupported style classes -- anything but M$
if (strpos($a, 'Mso') !== 0)
unset($classes[$i]);
if ($classes)
$attributes['class'] = implode(' ', $classes);
else
unset($attributes['class']);
}
// Clean browser-specific style attributes
if (isset($attributes['style'])) {
$styles = preg_split('/;\s*/S', html_entity_decode($attributes['style']));
$props = array();
foreach ($styles as $i=>&$s) {
@list($prop, $val) = explode(':', $s);
if (isset($props[$prop])) {
unset($styles[$i]);
continue;
}
$props[$prop] = true;
// Remove unset or browser-specific style rules
if (!$val || !$prop || $prop[0] == '-' || substr($prop, 0, 4) == 'mso-')
unset($styles[$i]);
// Remove quotes of properties without enclosed space
if (!strpos($val, ' '))
$val = str_replace('"','', $val);
else
$val = str_replace('"',"'", $val);
$s = "$prop:".trim($val);
}
unset($s);
if ($styles)
$attributes['style'] = Format::htmlchars(implode(';', $styles));
else
unset($attributes['style']);
}
$at = '';
if (is_array($attributes)) {
foreach ($attributes as $k=>$v)
$at .= " $k=\"$v\"";
return "<{$el}{$at}".(isset($eE[$el])?" /":"").">";
}
else {
return "</{$el}>";
}
}
static function safe_html($html, $options=array()) {
global $cfg;
$options = array_merge(array(
// Balance html tags
'balance' => 1,
// Decoding special html char like < and > which
// can be used to skip cleaning
'decode' => true
),
$options);
if ($options['decode'])
$html = Format::htmldecode($html);
// Remove HEAD and STYLE sections
$html = preg_replace(
array(':<(head|style|script).+?</\1>:is', # <head> and <style> sections
':<!\[[^]<]+\]>:', # <![if !mso]> and friends
':<!DOCTYPE[^>]+>:', # <!DOCTYPE ... >
':<\?[^>]+>:', # <?xml version="1.0" ... >
':<html[^>]+:i', # drop html attributes
':<(a|span) (name|style)="(mso-bookmark\:)?_MailEndCompose">(.+)?<\/(a|span)>:', # Drop _MailEndCompose
':<div dir=(3D)?"ltr">(.*?)<\/div>(.*):is', # drop Gmail "ltr" attributes
':data-cid="[^"]*":', # drop image cid attributes
'(position:[^!";]+;?)',
),
array('', '', '', '', '<html', '$4', '$2 $3', '', ''),
$html);
// HtmLawed specific config only
$config = array(
'safe' => 1, //Exclude applet, embed, iframe, object and script tags.
'balance' => $options['balance'],
'comment' => 1, //Remove html comments (OUTLOOK LOVE THEM)
'tidy' => -1,
'elements' => '*-form-input-button',
'deny_attribute' => 'id, formaction, action, on*',
'schemes' => 'href: aim, feed, file, ftp, gopher, http, https, irc, mailto, news, nntp, sftp, ssh, telnet; *:file, http, https; src: cid, http, https, data',
'hook_tag' => function($e, $a=0) { return Format::__html_cleanup($e, $a); },
);
// iFrame Whitelist
if ($cfg)
$whitelist = $cfg->getIframeWhitelist();
if (!empty($whitelist)) {
$config['elements'] .= '+iframe';
$config['spec'] = 'iframe=-*,height,width,type,style,src(match="`^(https?:)?//(www\.)?('
.implode('|', $whitelist)
.')(\?|/|#)([^@]*)$`i"),frameborder'.($options['spec'] ? '; '.$options['spec'] : '').',allowfullscreen';
}
return Format::html($html, $config);
}
static function localizeInlineImages($text) {
// Change file.php urls back to content-id's
return preg_replace(
'`<img src="(?:https?:/)?(?:/[^/"]+)*?/file\\.php\\?(?:\w+=[^&"]+&(?:amp;)?)*?key=([^&]+)[^"]*`',
'<img src="cid:$1', $text);
}
static function sanitize($text, $striptags=false, $spec=false) {
// Localize inline images before sanitizing content
$text = self::localizeInlineImages($text);
//balance and neutralize unsafe tags.
$text = Format::safe_html($text, array('spec' => $spec));
//If requested - strip tags with decoding disabled.
return $striptags?Format::striptags($text, false):$text;
}
static function htmlchars($var, $sanitize = false) {
static $phpversion = null;
if (is_array($var)) {
$result = array();
foreach ($var as $k => $v)
$result[$k] = self::htmlchars($v, $sanitize);
return $result;
}
if ($sanitize)
$var = Format::sanitize($var);
if (!isset($phpversion))
$phpversion = phpversion();
$flags = ENT_COMPAT;
if ($phpversion >= '5.4.0')
$flags |= ENT_HTML401;
try {
return htmlspecialchars( (string) $var, $flags, 'UTF-8', false);
} catch(Exception $e) {
return $var;
}
}
static function htmldecode($var) {
if(is_array($var))
return array_map(array('Format','htmldecode'), $var);
$flags = ENT_COMPAT;
if (phpversion() >= '5.4.0')
$flags |= ENT_HTML401;
return htmlspecialchars_decode($var, $flags);
}
static function http_query_string(string $query, array $filter = null) {
$args = [];
parse_str($query, $args);
if ($filter && is_array($filter))
$args = array_diff_key($args, array_flip($filter));
return http_build_query($args);
}
static function input($var) {
return Format::htmlchars($var);
}
//Format text for display..
static function display($text, $inline_images=true, $balance=true) {
global $cfg;
// Exclude external images?
$exclude = !$cfg->allowExternalImages();
// Allowed image extensions
$allowed = array('gif', 'png', 'jpg', 'jpeg');
// Make showing offsite images optional
$text = preg_replace_callback('/<img ([^>]*)(src="http[^"]+")([^>]*)\/>/',
function($match) use ($exclude, $allowed) {
$m = array();
// Split the src URL and get the extension
preg_match('/src="([^"]+)"/', $match[2], $m);
$part = parse_url($m[1], PHP_URL_PATH);
$path = explode('.', $part);
$ext = preg_split('/[^A-Za-z]/', end($path))[0];
if (!$exclude && in_array($ext, $allowed)) {
// Drop embedded classes -- they don't refer to ours
$match = preg_replace('/class="[^"]*"/', '', $match);
return sprintf('<span %s class="non-local-image" data-%s %s></span>',
$match[1], $match[2], $match[3]);
} else
return '';
},
$text);
if ($balance)
$text = self::html_balance($text, false);
// make urls clickable.
$text = Format::clickableurls($text);
if ($inline_images)
return self::viewableImages($text);
return $text;
}
static function stripExternalImages($input, $display=false) {
global $cfg;
// Allowed Inline External Image Extensions
$allowed = array('gif', 'png', 'jpg', 'jpeg');
$exclude = !$cfg->allowExternalImages();
$local = false;
$input = preg_replace_callback('/<img ([^>]*)(src="([^"]+)")([^>]*)\/?>/',
function($match) use ($local, $allowed, $exclude, $display) {
if (strpos($match[3], 'cid:') !== false)
$local = true;
// Split the src URL and get the extension
$part = parse_url($match[3], PHP_URL_PATH);
$path = explode('.', $part);
$ext = preg_split('/[^A-Za-z]/', end($path))[0];
if (!$local && (($exclude && $display) || !in_array($ext, $allowed)))
return '';
else
return $match[0];
},
$input);
return $input;
}
static function striptags($var, $decode=true) {
if(is_array($var))
return array_map(array('Format','striptags'), $var, array_fill(0, count($var), $decode));
return strip_tags($decode?Format::htmldecode($var):$var);
}
// Strip all Emoticon/Emoji characters until we support them
static function strip_emoticons($text) {
return preg_replace(array(
'/[\x{1F601}-\x{1F64F}]/u', # Emoticons
'/[\x{1F680}-\x{1F6C0}]/u', # Transport/Map
'/[\x{1F600}-\x{1F636}]/u', # Add. Emoticons
'/[\x{1F681}-\x{1F6C5}]/u', # Add. Transport/Map
'/[\x{1F30D}-\x{1F567}]/u', # Other
'/[\x{1F910}-\x{1F999}]/u', # Hands
'/[\x{1F9D0}-\x{1F9DF}]/u', # Fantasy
'/[\x{1F9E0}-\x{1F9EF}]/u', # Clothes
'/[\x{1F6F0}-\x{1F6FF}]/u', # Misc. Transport
'/[\x{1F6E0}-\x{1F6EF}]/u', # Planes/Boats
'/[\x{1F6C0}-\x{1F6CF}]/u', # Bed/Bath
'/[\x{1F9C0}-\x{1F9C2}]/u', # Misc. Food
'/[\x{1F6D0}-\x{1F6D2}]/u', # Sign/P.O.W./Cart
'/[\x{1F500}-\x{1F5FF}]/u', # Uncategorized
'/[\x{1F300}-\x{1F3FF}]/u', # Cyclone/Amphora
'/[\x{2702}-\x{27B0}]/u', # Dingbats
'/[\x{00A9}-\x{00AE}]/u', # Copyright/Registered
'/[\x{23F0}-\x{23FF}]/u', # Clock/Buttons
'/[\x{23E0}-\x{23EF}]/u', # More Buttons
'/[\x{2310}-\x{231F}]/u', # Hourglass/Watch
'/[\x{1000B6}]/u', # Private Use Area (Plane 16)
'/[\x{2322}-\x{232F}]/u' # Keyboard
), '', $text);
}
// Insert </br> tag inside empty <p> tags to ensure proper editor spacing
static function editor_spacing($text) {
return preg_replace('/<p><\/p>/', '<p><br></p>', $text);
}
//make urls clickable. Mainly for display
static function clickableurls($text, $target='_blank') {
global $ost;
// Find all text between tags
return preg_replace_callback(':^[^<]+|>[^<]+:',
function($match) {
// Scan for things that look like URLs
return preg_replace_callback(
'`(?<!>)(((f|ht)tp(s?)://|(?<!//)www\.)([-+~%/.\w]+)(?:[-?#+=&;%@.\w\[\]\/]*)?)'
.'|(\b[_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]{2,63})`',
function ($match) {
if ($match[1]) {
while (in_array(substr($match[1], -1),
array('.','?','-',':',';'))) {
$match[9] = substr($match[1], -1) . $match[9];
$match[1] = substr($match[1], 0, strlen($match[1])-1);
}
if (strpos($match[2], '//') === false) {
$match[1] = 'http://' . $match[1];
}
return sprintf('<a href="%s">%s</a>%s',
$match[1], $match[1], $match[9]);
} elseif ($match[6]) {
return sprintf('<a href="mailto:%1$s" target="_blank">%1$s</a>',
$match[6]);
}
},
$match[0]);
},
$text);
}
static function stripEmptyLines($string) {
return preg_replace("/\n{3,}/", "\n\n", trim($string));
}
static function viewableImages($html, $options=array(), $format=false) {
$cids = $images = array();
$options +=array(
'disposition' => 'inline');
$html = preg_replace_callback('/("|")cid:([\w._-]{32})("|")/',
function($match) use ($options, $images) {
if (!($file = AttachmentFile::lookup($match[2])))
return $match[0];
return sprintf('"%s" data-cid="%s"',
$file->getDownloadUrl($options), $match[2]);
}, $html);
return $format ? Format::htmlchars($html, true) : $html;
}
/**
* Thanks, http://us2.php.net/manual/en/function.implode.php
* Implode an array with the key and value pair giving
* a glue, a separator between pairs and the array
* to implode.
* @param string $glue The glue between key and value
* @param string $separator Separator between pairs
* @param array $array The array to implode
* @return string The imploded array
*/
static function array_implode( $glue, $separator, $array ) {
if ( !is_array( $array ) ) return $array;
$string = array();
foreach ( $array as $key => $val ) {
if ( is_array( $val ) )
$val = implode( ',', $val );
$string[] = "{$key}{$glue}{$val}";
}
return implode( $separator, $string );
}
static function number($number, $locale=false) {
if (is_array($number))
return array_map(array('Format','number'), $number);
if (!is_numeric($number))
return $number;
if (extension_loaded('intl') && class_exists('NumberFormatter')) {
$nf = NumberFormatter::create($locale ?: Internationalization::getCurrentLocale(),
NumberFormatter::DECIMAL);
return $nf->format($number);
}
return number_format((int) $number);
}
/*
* Add ORDINAL suffix to a number e.g 1st, 2nd, 3rd etc.
* TODO: Combine this routine with Format::number and pass in type of
* formatting.
*/
static function ordinalsuffix($number, $locale=false) {
if (is_array($number))
return array_map(array('Format', 'ordinalsuffix'), $number);
if (!is_numeric($number))
return $number;
if (extension_loaded('intl') && class_exists('NumberFormatter')) {
$nf = new NumberFormatter($locale ?:
Internationalization::getCurrentLocale(),
NumberFormatter::ORDINAL);
return $nf->format($number);
}
// Default to English ordinal
if (!in_array(($number % 100), [11,12,13])) {
switch ($number % 10) {
case 1: return $number.'st';
case 2: return $number.'nd';
case 3: return $number.'rd';
}
}
return $number.'th';
}
/* elapsed time */
static function elapsedTime($sec) {
if(!$sec || !is_numeric($sec)) return "";
$days = floor($sec / 86400);
$hrs = floor(bcmod($sec,86400)/3600);
$mins = round(bcmod(bcmod($sec,86400),3600)/60);
if($days > 0) $tstring = $days . 'd,';
if($hrs > 0) $tstring = $tstring . $hrs . 'h,';
$tstring =$tstring . $mins . 'm';
return $tstring;
}
static function __formatDate($timestamp, $format, $fromDb, $dayType, $timeType,
$strftimeFallback, $timezone, $user=false) {
global $cfg;
static $cache;
if ($timestamp && $fromDb)
$timestamp = Misc::db2gmtime($timestamp);
// Make sure timestamp is valid for realz.
if (!$timestamp || !($datetime = DateTime::createFromFormat('U', $timestamp)))
return '';
// Normalize timezone
if ($timezone)
$timezone = Format::timezone($timezone);
// Set the desired timezone (caching since it will be mostly same
// for most date formatting.
$timezone = Format::timezone($timezone, $cfg->getTimezone());
if (isset($cache[$timezone]))
$tz = $cache[$timezone];
else
$cache[$timezone] = $tz = new DateTimeZone($timezone);
$datetime->setTimezone($tz);
// Formmating options
$options = array(
'timezone' => $tz->getName(),
'locale' => Internationalization::getCurrentLocale($user),
'daytype' => $dayType,
'timetype' => $timeType,
'strftime' => $strftimeFallback,
);
return self::IntDateFormat($datetime, $format, $options);
}
// IntDateFormat
// Format datetime to desired format in accorrding to desired locale
static function IntDateFormat(DateTime $datetime, $format, $options=array()) {
global $cfg;
if (!$datetime instanceof DateTime)
return '';
$format = $format ?: $cfg->getDateFormat();
$timezone = $datetime->getTimeZone();
// Use IntlDateFormatter if available
if (class_exists('IntlDateFormatter')) {
$options += array(
'pattern' => $format,
'timezone' => $timezone->getName());
if ($fmt=Internationalization::getIntDateFormatter($options))
return $fmt->format($datetime);
}
// Fallback to using strftime which is not timezone aware
// Figure out timezone offset for given timestamp
$timestamp = $datetime->format('U');
$time = DateTime::createFromFormat('U', $timestamp, new DateTimeZone('UTC'));
$timestamp += $timezone->getOffset($time);
// Change format to strftime format otherwise us a fallback format
$format = self::getStrftimeFormat($format) ?: $options['strftime']
?: '%x %X';
if ($cfg && $cfg->isForce24HourTime())
$format = str_replace('X', 'R', $format);
// TODO: Deprecated; replace this soon
return strftime($format, $timestamp);
}
// Normalize ambiguous timezones
static function timezone($tz, $default=false) {
// Translate ambiguous 'GMT' timezone
if ($tz == 'GMT')
return 'Europe/London';
if (!$tz || !strcmp($tz, '+00:00'))
$tz = 'UTC';
if (is_numeric($tz))
$tz = timezone_name_from_abbr('', $tz, false);
// Forbid timezone abbreviations like 'CDT'
elseif ($tz !== 'UTC' && strpos($tz, '/') === false) {
// Attempt to lookup based on the abbreviation
if (!($tz = timezone_name_from_abbr($tz)))
// Abbreviation doesn't point to anything valid
return $default;
}
// SYSTEM does not describe a time zone, ensure we have a valid zone
// by attempting to create an instance of DateTimeZone()
try {
$timezone = new DateTimeZone($tz);
return $timezone->getName();
} catch(Exception $ex) {
return $default;
}
return $tz;
}
static function parseDateTime($date, $locale=null, $format=false) {
global $cfg;
if (!$date)
return null;
// Timestamp format?
if (is_numeric($date))
return DateTime::createFromFormat('U', $date);
$datetime = null;
try {
$datetime = new DateTime($date);
$tz = $datetime->getTimezone()->getName();
if ($tz && $tz[0] == '+' || $tz[0] == '-')
$tz = (int) $datetime->format('Z');
elseif ($tz == 'Z')
$tz = 'UTC';
$timezone = new DateTimeZone(Format::timezone($tz) ?: 'UTC');
$datetime->setTimezone($timezone);
} catch (Exception $ex) {
// Fallback using strtotime
if (($time=strtotime($date)))
$datetime = DateTime::createFromFormat('U', $time);
}
return $datetime;
}
static function time($timestamp, $fromDb=true, $format=false, $timezone=false, $user=false) {
global $cfg;
return self::__formatDate($timestamp,
$format ?: $cfg->getTimeFormat(), $fromDb,
IDF_NONE, IDF_SHORT,
'%X', $timezone ?: $cfg->getTimezone(), $user);
}
static function date($timestamp, $fromDb=true, $format=false, $timezone=false, $user=false) {
global $cfg;
return self::__formatDate($timestamp,
$format ?: $cfg->getDateFormat(), $fromDb,
IDF_SHORT, IDF_NONE,
'%x', $timezone ?: $cfg->getTimezone(), $user);
}
static function datetime($timestamp, $fromDb=true, $format=false, $timezone=false, $user=false) {
global $cfg;
return self::__formatDate($timestamp,
$format ?: $cfg->getDateTimeFormat(), $fromDb,
IDF_SHORT, IDF_SHORT,
'%x %X', $timezone ?: $cfg->getTimezone(), $user);
}
static function daydatetime($timestamp, $fromDb=true, $format=false, $timezone=false, $user=false) {
global $cfg;
return self::__formatDate($timestamp,
$format ?: $cfg->getDayDateTimeFormat(), $fromDb,
IDF_FULL, IDF_SHORT,
'%x %X', $timezone ?: $cfg->getTimezone(), $user);
}
static function getStrftimeFormat($format) {
static $codes, $ids;
if (!isset($codes)) {
// This array is flipped because of duplicated formats on the
// intl side due to slight differences in the libraries
$codes = array(
'%d' => 'dd',
'%a' => 'EEE',
'%e' => 'd',
'%A' => 'EEEE',
'%w' => 'e',
'%w' => 'c',
'%z' => 'D',
'%V' => 'w',
'%B' => 'MMMM',
'%m' => 'MM',
'%b' => 'MMM',
'%g' => 'Y',
'%G' => 'Y',
'%Y' => 'y',
'%y' => 'yy',
'%P' => 'a',
'%l' => 'h',
'%k' => 'H',
'%I' => 'hh',
'%H' => 'HH',
'%M' => 'mm',
'%S' => 'ss',
'%z' => 'ZZZ',
'%Z' => 'z',
);
$flipped = array_flip($codes);
krsort($flipped);
// Also establish a list of ids, so we can do a creative replacement
// without clobbering the common letters in the formats
$keys = array_keys($flipped);
$ids = array_combine($keys, array_map('chr', array_flip($keys)));
// Now create an array from the id codes back to strftime codes
$codes = array_combine($ids, $flipped);
}
// $ids => array(intl => #id)
// $codes => array(#id => strftime)
$format = str_replace(array_keys($ids), $ids, $format);
$format = str_replace($ids, $codes, $format);
return preg_replace_callback('`[\x00-\x1f]`',
function($m) use ($ids) {
return $ids[ord($m[0])];
},
$format
);
}
// Translate php date / time formats to js equivalent
static function dtfmt_php2js($format) {
$codes = array(
// Date
'DD' => 'oo',
'D' => 'o',
'EEEE' => 'DD',
'EEE' => 'D',
'MMMM' => '||',
'MMM' => '|',
'MM' => 'mm',
'M' => 'm',
'||' => 'MM',
'|' => 'M',
'yyyy' => 'YY',
'yyy' => 'YY',
'yy' => 'Y',
'y' => 'yy',
'YY' => 'yy',
'Y' => 'y',
// Time
'a' => 'tt',
'HH' => 'H',
'H' => 'HH',
);
return str_replace(array_keys($codes), array_values($codes), $format);
}
// Thanks, http://stackoverflow.com/a/2955878/1025836
/* static */
static function slugify($text) {
// convert special characters to entities
$text = htmlentities($text, ENT_NOQUOTES, 'UTF-8');
// removes entity suffixes, leaving only un-accented characters
$text = preg_replace('~&([A-Za-z])(?:acute|cedil|circ|grave|orn|ring|slash|th|tilde|uml);~', '$1', $text);
$text = preg_replace('~&([A-Za-z]{2})(?:lig);~', '$1', $text);
// replace non letter or digits by -
$text = preg_replace('~[^\p{L}\p{N}]+~u', '-', $text);
// trim
$text = trim($text, '-');
// lowercase
$text = strtolower($text);
return (empty($text)) ? 'n-a' : $text;
}
/**
* Parse RFC 2397 formatted data strings. Format according to the RFC
* should look something like:
*
* data:[type/subtype][;charset=utf-8][;base64],data
*
* Parameters:
* $data - (string) RFC2397 formatted data string
* $output_encoding - (string:optional) Character set the input data
* should be encoded to.
* $always_convert - (bool|default:true) If the input data string does
* not specify an input encding, assume iso-8859-1. If this flag is
* set, the output will always be transcoded to the declared
* output_encoding, if set.
*
* Returs:
* array (data=>parsed and transcoded data string, type=>MIME type
* declared in the data string or text/plain otherwise)
*
* References:
* http://www.ietf.org/rfc/rfc2397.txt
*/
static function parseRfc2397($data, $output_encoding=false, $always_convert=true) {
if (substr($data, 0, 5) != "data:")
return array('data'=>$data, 'type'=>'text/plain');
$data = substr($data, 5);
list($meta, $contents) = explode(",", $data, 2);
if ($meta)
list($type, $extra) = explode(";", $meta, 2);
else
$extra = '';
if (!isset($type) || !$type)
$type = 'text/plain';
$parameters = explode(";", $extra);
# Handle 'charset' hint in $extra, such as
# data:text/plain;charset=iso-8859-1,Blah
# Convert to utf-8 since it's the encoding scheme for the database.
$charset = ($always_convert) ? 'iso-8859-1' : false;
foreach ($parameters as $p) {
list($param, $value) = explode('=', $extra);
if ($param == 'charset')
$charset = $value;
elseif ($param == 'base64')
$contents = base64_decode($contents);
}
if ($output_encoding && $charset)
$contents = Charset::transcode($contents, $charset, $output_encoding);
return array(
'data' => $contents,
'type' => $type
);
}
// Performs Unicode normalization (where possible) and splits words at
// difficult word boundaries (for far eastern languages)
static function searchable($text, $lang=false, $length=false) {
global $cfg;
if (function_exists('normalizer_normalize')) {
// Normalize text input :: remove diacritics and such
$text = normalizer_normalize($text, Normalizer::FORM_C);
}
if (false && class_exists('IntlBreakIterator')) {
// Split by word boundaries
if ($tokenizer = IntlBreakIterator::createWordInstance(
$lang ?: ($cfg ? $cfg->getPrimaryLanguage() : 'en_US'))
) {
$tokenizer->setText($text);
$tokens = array();
foreach ($tokenizer as $token)
$tokens[] = $token;
$text = implode(' ', $tokens);
}
}
else {
// Approximate word boundaries from Unicode chart at
// http://www.unicode.org/reports/tr29/#Word_Boundaries
// Punt for now
// Drop extraneous whitespace
$text = preg_replace('/(\s)\s+/u', '$1', $text);
// Drop leading and trailing whitespace
$text = trim($text);
}
if ($length && (str_word_count($text) > $length))
return null;
return $text;
}
static function relativeTime($to, $from=false, $granularity=1) {
if (!$to)
return false;
$timestamp = $to;
if (gettype($timestamp) === 'string')
$timestamp = strtotime($timestamp);
$from = $from ?: Misc::gmtime();
if (gettype($timestamp) === 'string')
$from = strtotime($from);
$timeDiff = $from - $timestamp;
$absTimeDiff = abs($timeDiff);
// Roll back to the nearest multiple of $granularity
$absTimeDiff -= $absTimeDiff % $granularity;
// within 2 seconds
if ($absTimeDiff <= 2) {
return $timeDiff >= 0 ? __('just now') : __('now');
}
// within a minute
if ($absTimeDiff < 60) {
return sprintf($timeDiff >= 0 ? __('%d seconds ago') : __('in %d seconds'), $absTimeDiff);
}
// within 2 minutes
if ($absTimeDiff < 120) {
return sprintf($timeDiff >= 0 ? __('about a minute ago') : __('in about a minute'));
}
// within an hour
if ($absTimeDiff < 3600) {
return sprintf($timeDiff >= 0 ? __('%d minutes ago') : __('in %d minutes'), $absTimeDiff / 60);
}
// within 2 hours
if ($absTimeDiff < 7200) {
return ($timeDiff >= 0 ? __('about an hour ago') : __('in about an hour'));
}
// within 24 hours
if ($absTimeDiff < 86400) {
return sprintf($timeDiff >= 0 ? __('%d hours ago') : __('in %d hours'), $absTimeDiff / 3600);
}
// within 29 days
$days29 = 29 * 86400;
if ($absTimeDiff < $days29) {
return sprintf($timeDiff >= 0 ? __('%d days ago') : __('in %d days'), round($absTimeDiff / 86400));
}
// within 60 days
$days60 = 60 * 86400;
if ($absTimeDiff < $days60) {
return ($timeDiff >= 0 ? __('about a month ago') : __('in about a month'));
}
$currTimeYears = date('Y', $from);
$timestampYears = date('Y', $timestamp);
$currTimeMonths = $currTimeYears * 12 + date('n', $from);
$timestampMonths = $timestampYears * 12 + date('n', $timestamp);
// within a year
$monthDiff = $currTimeMonths - $timestampMonths;
if ($monthDiff < 12 && $monthDiff > -12) {
return sprintf($monthDiff >= 0 ? __('%d months ago') : __('in %d months'), abs($monthDiff));
}
$yearDiff = $currTimeYears - $timestampYears;
if ($yearDiff < 2 && $yearDiff > -2) {
return $yearDiff >= 0 ? __('a year ago') : __('in a year');
}
return sprintf($yearDiff >= 0 ? __('%d years ago') : __('in %d years'), abs($yearDiff));
}
}
if (!class_exists('IntlDateFormatter')) {
define('IDF_NONE', 0);
define('IDF_SHORT', 1);
define('IDF_FULL', 2);
}
else {
define('IDF_NONE', IntlDateFormatter::NONE);
define('IDF_SHORT', IntlDateFormatter::SHORT);
define('IDF_FULL', IntlDateFormatter::FULL);
}
class FormattedLocalDate
implements TemplateVariable {
var $date;
var $timezone;
var $datetime;
var $fromdb;
var $format;
function __construct($date, $options=array()) {
// Date to be formatted
$this->datetime = Format::parseDateTime($date);
$this->date = $this->datetime->getTimestamp();
// Desired timezone
if (isset($options['timezone']))
$this->timezone = $options['timezone'];
else
$this->timezone = false;
// User
if (isset($options['user']))
$this->user = $options['user'];
else
$this->user = false;
// DB date or nah?
if (isset($options['fromdb']))
$this->fromdb = $options['fromdb'];
else
$this->fromdb = true;
// Desired format
if (isset($options['format']) && $options['format'])
$this->format = $options['format'];
}
function getDateTime() {
return $this->datetime;
}
function asVar() {
return $this->getVar($this->format ?: 'long');
}
function getVar($what) {
// TODO: Rebase date format so that locale is discovered HERE.
switch ($what) {
case 'short':
return Format::date($this->date, $this->fromdb, false, $this->timezone, $this->user);
case 'long':
return Format::datetime($this->date, $this->fromdb, false, $this->timezone, $this->user);
case 'time':
return Format::time($this->date, $this->fromdb, false, $this->timezone, $this->user);
case 'full':
return Format::daydatetime($this->date, $this->fromdb, false, $this->timezone, $this->user);
}
}
function __toString() {
return $this->asVar() ?: '';
}
static function getVarScope() {
return array(
'full' => 'Expanded date, e.g. day, month dd, yyyy',
'long' => 'Date and time, e.g. d/m/yyyy hh:mm',
'short' => 'Date only, e.g. d/m/yyyy',
'time' => 'Time only, e.g. hh:mm',
);
}
}
class FormattedDate
extends FormattedLocalDate {
function asVar() {
return $this->getVar('system')->asVar();
}
function __toString() {
global $cfg;
$timezone = new DatetimeZone($this->timezone ?:
$cfg->getTimezone());
$options = array(
'timezone' => $timezone->getName(),
'fromdb' => $this->fromdb,
'format' => $this->format
);
$val = (string) new FormattedLocalDate($this->date, $options);
if ($this->timezone && $this->format == 'long') {
try {
$this->datetime->setTimezone($timezone);
$val = sprintf('%s %s',
$val, $this->datetime->format('T'));
} catch(Exception $ex) {
// ignore
}
}
return $val;
}
function getVar($what, $context=null) {
global $cfg;
if ($rv = parent::getVar($what, $context))
return $rv;
switch ($what) {
case 'user':
// Fetch $recipient from the context and find that user's time zone
if ($context && ($recipient = $context->getObj('recipient'))) {
$options = array(
'timezone' => $recipient->getTimezone() ?: $cfg->getDefaultTimezone(),
'user' => $recipient
);
return new FormattedLocalDate($this->date, $options);
}
// Don't resolve the variable until correspondance is sent out
return false;
case 'system':
return new FormattedLocalDate($this->date, array(
'timezone' => $cfg->getDefaultTimezone()
)
);
}
}
function getHumanize() {
return Format::relativeTime(Misc::db2gmtime($this->date));
}
static function getVarScope() {
return parent::getVarScope() + array(
'humanize' => 'Humanized time, e.g. about an hour ago',
'user' => array(
'class' => 'FormattedLocalDate', 'desc' => "Localize to recipient's time zone and locale"),
'system' => array(
'class' => 'FormattedLocalDate', 'desc' => 'Localize to system default time zone'),
);
}
}
?>