* * and Joseph Engo * * and Mark Peters * * Commononly used functions by phpGroupWare developers * * Copyright (C) 2000, 2001 Dan Kuykendall * * -------------------------------------------------------------------------* * This library is part of the eGroupWare API * * http://www.egroupware.org * * ------------------------------------------------------------------------ * * This library is free software; you can redistribute it and/or modify it * * under the terms of the GNU Lesser General Public License as published by * * the Free Software Foundation; either version 2.1 of the License, * * or any later version. * * This library is distributed in the hope that it will be useful, but * * WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * See the GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * * along with this library; if not, write to the Free Software Foundation, * * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * \**************************************************************************/ /* $Id$ */ $d1 = strtolower(@substr(PHPGW_API_INC,0,3)); $d2 = strtolower(@substr(PHPGW_SERVER_ROOT,0,3)); $d3 = strtolower(@substr(PHPGW_APP_INC,0,3)); if($d1 == 'htt' || $d1 == 'ftp' || $d2 == 'htt' || $d2 == 'ftp' || $d3 == 'htt' || $d3 == 'ftp') { echo 'Failed attempt to break in via an old Security Hole!
'."\n"; exit; } unset($d1); unset($d2); unset($d3); /*! @class datetime @abstract datetime class that contains common date/time functions */ class datetime { var $tz_offset; var $days = Array(); var $days_short = Array(); var $gmtnow = 0; var $users_localtime; var $cv_gmtdate; function datetime() { $this->tz_offset = 3600 * (int)@$GLOBALS['phpgw_info']['user']['preferences']['common']['tz_offset']; print_debug('datetime::datetime::gmtnow',$this->gmtnow,'api'); $error_occured = True; // If we already have a GMT time, no need to do this again. if(!$this->gmtnow) { if(isset($GLOBALS['phpgw_info']['server']['tz_offset'])) { $this->gmtnow = time() - ((int)$GLOBALS['phpgw_info']['server']['tz_offset'] * 3600); print_debug('datetime::datetime::tz_offset',"set via tz_offset=".$GLOBALS['phpgw_info']['server']['tz_offset'].": gmtnow=".date('Y/m/d H:i',$this->gmtnow),'api'); } else { $this->gmtnow = time() - ($this->getbestguess() * 3600); print_debug('datetime::datetime::bestguess',"set via bestguess=".$this->getbestguess().": gmtnow=".date('Y/m/d H:i',$this->gmtnow),'api'); } } $this->users_localtime = time() + $this->tz_offset; } function getntpoffset() { $error_occured = False; if(!@is_object($GLOBALS['phpgw']->network)) { $GLOBALS['phpgw']->network = createobject('phpgwapi.network'); } $server_time = time(); if($GLOBALS['phpgw']->network->open_port('129.6.15.28',13,5)) { $line = $GLOBALS['phpgw']->network->bs_read_port(64); $GLOBALS['phpgw']->network->close_port(); $array = explode(' ',$line); // host: 129.6.15.28 // Value returned is 52384 02-04-20 13:55:29 50 0 0 9.2 UTC(NIST) * print_debug('Server datetime',time(),'api'); print_debug('Temporary NTP datetime',$line,'api'); if ($array[5] == 4) { $error_occured = True; } else { $date = explode('-',$array[1]); $time = explode(':',$array[2]); $this->gmtnow = mktime((int)$time[0],(int)$time[1],(int)$time[2],(int)$date[1],(int)$date[2],(int)$date[0] + 2000); print_debug('Temporary RFC epoch',$this->gmtnow,'api'); print_debug('GMT',date('Ymd H:i:s',$this->gmtnow),'api'); } } else { $error_occured = True; } if($error_occured == True) { return $this->getbestguess(); } else { return (int)(($server_time - $this->gmtnow) / 3600); } } function gethttpoffset() { $error_occured = False; if(!@is_object($GLOBALS['phpgw']->network)) { $GLOBALS['phpgw']->network = createobject('phpgwapi.network'); } $server_time = time(); $filename = 'http://132.163.4.213/timezone.cgi?GMT'; $file = $GLOBALS['phpgw']->network->gethttpsocketfile($filename); if(!$file) { return $this->getbestguess(); } $time = strip_tags($file[55]); $date = strip_tags($file[56]); print_debug('GMT DateTime',$date.' '.$time,'api'); $dt_array = explode(' ',$date); $temp_datetime = $dt_array[0].' '.substr($dt_array[2],0,-1).' '.substr($dt_array[1],0,3).' '.$dt_array[3].' '.$time.' GMT'; print_debug('Reformulated GMT DateTime',$temp_datetime,'api'); $this->gmtnow = $this->convert_rfc_to_epoch($temp_datetime); print_debug('this->gmtnow',$this->gmtnow,'api'); print_debug('server time',$server_time,'api'); print_debug('server DateTime',date('D, d M Y H:i:s',$server_time),'api'); return (int)(($server_time - $this->gmtnow) / 3600); } function getbestguess() { print_debug('datetime::datetime::debug: Inside getting from local server','api'); $server_time = time(); // Calculate GMT time... // If DST, add 1 hour... // - (date('I') == 1?3600:0) $this->gmtnow = $this->convert_rfc_to_epoch(gmdate('D, d M Y H:i:s',$server_time).' GMT'); return (int)(($server_time - $this->gmtnow) / 3600); } function convert_rfc_to_epoch($date_str) { $comma_pos = strpos($date_str,','); if($comma_pos) { $date_str = substr($date_str,$comma_pos+1); } // This may need to be a reference to the different months in native tongue.... $month= array( 'Jan' => 1, 'Feb' => 2, 'Mar' => 3, 'Apr' => 4, 'May' => 5, 'Jun' => 6, 'Jul' => 7, 'Aug' => 8, 'Sep' => 9, 'Oct' => 10, 'Nov' => 11, 'Dec' => 12 ); $dta = array(); $ta = array(); // Convert "15 Jul 2000 20:50:22 +0200" to unixtime $dta = explode(' ',$date_str); $ta = explode(':',$dta[4]); if(substr($dta[5],0,3) <> 'GMT') { $tzoffset = substr($dta[5],0,1); $tzhours = (int)substr($dta[5],1,2); $tzmins = (int)substr($dta[5],3,2); switch ($tzoffset) { case '-': (int)$ta[0] += $tzhours; (int)$ta[1] += $tzmins; break; case '+': (int)$ta[0] -= $tzhours; (int)$ta[1] -= $tzmins; break; } } return mktime($ta[0],$ta[1],$ta[2],$month[$dta[2]],$dta[1],$dta[3]); } function get_weekday_start($year,$month,$day) { $weekday = $this->day_of_week($year,$month,$day); switch($GLOBALS['phpgw_info']['user']['preferences']['calendar']['weekdaystarts']) { // Saturday is for arabic support case 'Saturday': $this->days = Array( 0 => 'Sat', 1 => 'Sun', 2 => 'Mon', 3 => 'Tue', 4 => 'Wed', 5 => 'Thu', 6 => 'Fri' ); $this->days_short = Array( 0 => 'Sa', 1 => 'Su', 2 => 'Mo', 3 => 'Tu', 4 => 'We', 5 => 'Th', 6 => 'Fr' ); switch($weekday) { case 0: $sday = mktime(2,0,0,$month,$day - 1,$year); break; case 6: $sday = mktime(2,0,0,$month,$day,$year); break; default: $sday = mktime(2,0,0,$month,$day - ($weekday + 1),$year); break; } break; case 'Monday': $this->days = Array( 0 => 'Mon', 1 => 'Tue', 2 => 'Wed', 3 => 'Thu', 4 => 'Fri', 5 => 'Sat', 6 => 'Sun' ); $this->days_short = Array( 0 => 'Mo', 1 => 'Tu', 2 => 'We', 3 => 'Th', 4 => 'Fr', 5 => 'Sa', 6 => 'Su' ); switch($weekday) { case 0: $sday = mktime(2,0,0,$month,$day - 6,$year); break; case 1: $sday = mktime(2,0,0,$month,$day,$year); break; default: $sday = mktime(2,0,0,$month,$day - ($weekday - 1),$year); break; } break; case 'Sunday': default: $this->days = Array( 0 => 'Sun', 1 => 'Mon', 2 => 'Tue', 3 => 'Wed', 4 => 'Thu', 5 => 'Fri', 6 => 'Sat' ); $this->days_short = Array( 0 => 'Su', 1 => 'Mo', 2 => 'Tu', 3 => 'We', 4 => 'Th', 5 => 'Fr', 6 => 'Sa' ); $sday = mktime(2,0,0,$month,$day - $weekday,$year); break; } return $sday - 7200; } function is_leap_year($year) { if (((int)$year % 4 == 0) && ((int)$year % 100 != 0) || ((int)$year % 400 == 0)) { return 1; } else { return 0; } } function days_in_month($month,$year) { $days = Array( 1 => 31, 2 => 28 + $this->is_leap_year((int)$year), 3 => 31, 4 => 30, 5 => 31, 6 => 30, 7 => 31, 8 => 31, 9 => 30, 10 => 31, 11 => 30, 12 => 31 ); return $days[(int)$month]; } function date_valid($year,$month,$day) { return checkdate((int)$month,(int)$day,(int)$year); } function time_valid($hour,$minutes,$seconds) { if((int)$hour < 0 || (int)$hour > 24) { return False; } if((int)$minutes < 0 || (int)$minutes > 59) { return False; } if((int)$seconds < 0 || (int)$seconds > 59) { return False; } return True; } function day_of_week($year,$month,$day) { if($month > 2) { $month -= 2; } else { $month += 10; $year--; } $day = (floor((13 * $month - 1) / 5) + $day + ($year % 100) + floor(($year % 100) / 4) + floor(($year / 100) / 4) - 2 * floor($year / 100) + 77); return (($day - 7 * floor($day / 7))); } function day_of_year($year,$month,$day) { $days = array(0,31,59,90,120,151,181,212,243,273,304,334); $julian = ($days[$month - 1] + $day); if($month > 2 && $this->is_leap_year($year)) { $julian++; } return($julian); } /*! @function days_between @abstract Get the number of days between two dates @author Steven Cramer/Ralf Becker @param $m1 - Month_1, $d1 - Day_1, $y1 - Year_1, $m2 - Month_2, $d2 - Day_2, $y2 - Year_2 @note the last param == 0, ensures that the calculation is always done without daylight-saveing */ function days_between($m1,$d1,$y1,$m2,$d2,$y2) { return (int)((mktime(0,0,0,$m2,$d2,$y2,0) - mktime(0,0,0,$m1,$d1,$y1,0)) / 86400); } function date_compare($a_year,$a_month,$a_day,$b_year,$b_month,$b_day) { $a_date = mktime(0,0,0,(int)$a_month,(int)$a_day,(int)$a_year); $b_date = mktime(0,0,0,(int)$b_month,(int)$b_day,(int)$b_year); if($a_date == $b_date) { return 0; } elseif($a_date > $b_date) { return 1; } elseif($a_date < $b_date) { return -1; } } function time_compare($a_hour,$a_minute,$a_second,$b_hour,$b_minute,$b_second) { // I use the 1970/1/2 to compare the times, as the 1. can get via TZ-offest still // before 1970/1/1, which is the earliest date allowed on windows $a_time = mktime((int)$a_hour,(int)$a_minute,(int)$a_second,1,2,1970); $b_time = mktime((int)$b_hour,(int)$b_minute,(int)$b_second,1,2,1970); if($a_time == $b_time) { return 0; } elseif($a_time > $b_time) { return 1; } elseif($a_time < $b_time) { return -1; } } function makegmttime($hour,$minute,$second,$month,$day,$year) { return $this->gmtdate(mktime($hour, $minute, $second, $month, $day, $year)); } // Note common:show_date converts server- to user-time, before it returns the requested format !!! function localdates($localtime) { $date = Array('raw','day','month','year','full','dow','dm','bd'); $date['raw'] = $localtime; $date['year'] = (int)$GLOBALS['phpgw']->common->show_date($date['raw'],'Y'); $date['month'] = (int)$GLOBALS['phpgw']->common->show_date($date['raw'],'m'); $date['day'] = (int)$GLOBALS['phpgw']->common->show_date($date['raw'],'d'); $date['full'] = (int)$GLOBALS['phpgw']->common->show_date($date['raw'],'Ymd'); $date['bd'] = mktime(0,0,0,$date['month'],$date['day'],$date['year']); $date['dm'] = (int)$GLOBALS['phpgw']->common->show_date($date['raw'],'dm'); $date['dow'] = $this->day_of_week($date['year'],$date['month'],$date['day']); $date['hour'] = (int)$GLOBALS['phpgw']->common->show_date($date['raw'],'H'); $date['minute'] = (int)$GLOBALS['phpgw']->common->show_date($date['raw'],'i'); $date['second'] = (int)$GLOBALS['phpgw']->common->show_date($date['raw'],'s'); return $date; } function gmtdate($localtime) { return $this->localdates($localtime - $this->tz_offset); } } ?>