X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=functions%2Fdate.php;h=450d036e34960471f65b10f4245b5a6fa2f08761;hb=97b9c02f69004e8f2fa13a13cddb6e5804c9623b;hp=9f9f48d1b813bbc106c2ebe88f96c241368f895e;hpb=d47b2518bd5b1544e3b7577b59f323b29737eb12;p=squirrelmail.git

diff --git a/functions/date.php b/functions/date.php
index 9f9f48d1..450d036e 100644
--- a/functions/date.php
+++ b/functions/date.php
@@ -1,135 +1,379 @@
 <?php
-   /**
-    **  date.php
-    **
-    **  Takes a date and parses it into a usable format.  The form that a
-    **  date SHOULD arrive in is:
-    **        <Tue,> 29 Jun 1999 09:52:11 -0500 (EDT)
-    **  (as specified in RFC 822) -- "Tue" is optional
+
+/**
+ * date.php
+ *
+ * Copyright (c) 1999-2003 The SquirrelMail Project Team
+ * Licensed under the GNU GPL. For full terms see the file COPYING.
+ *
+ * Takes a date and parses it into a usable format.  The form that a
+ * date SHOULD arrive in is:
+ *       <Tue,> 29 Jun 1999 09:52:11 -0500 (EDT)
+ * (as specified in RFC 822) -- 'Tue' is optional
+ *
+ * $Id$
+ */
+
+require_once(SM_PATH . 'functions/constants.php');
+
+/* corrects a time stamp to be the local time */
+function getGMTSeconds($stamp, $tzc) {
+    /* date couldn't be parsed */
+    if ($stamp == -1) {
+        return -1;
+    }
+    /* timezone correction, expressed as `shhmm' */
+    switch($tzc)
+    {
+        case 'Pacific':
+        case 'PST':
+            $tzc = '-0800';
+            break;
+        case 'Mountain':   
+        case 'MST':   
+        case 'PDT':   
+            $tzc = '-0700';     
+            break;
+        case 'Central':
+        case 'CST':
+        case 'MDT':   
+            $tzc = '-0600';     
+            break;
+        case 'Eastern':
+        case 'EST':
+        case 'CDT':   
+            $tzc = '-0500';     
+            break;
+        case 'EDT':
+            $tzc = '-0400';
+            break;
+        case 'GMT':   
+            $tzc = '+0000';     
+            break;
+        case 'BST':
+        case 'MET':
+        case 'CET':
+            $tzc = '+0100';
+            break;
+        case 'EET':
+        case 'IST':   
+        case 'MET DST':   
+        case 'METDST':   
+            $tzc = '+0200';     
+            break;
+        case 'HKT':   
+            $tzc = '+0800';     
+            break;
+        case 'JST':   
+        case 'KST':
+            $tzc = '+0900';     
+            break;
+    }
+    $neg = false;
+    if (substr($tzc, 0, 1) == '-') {
+        $neg = true;
+    } else if (substr($tzc, 0, 1) != '+') {
+        $tzc = '+'.$tzc;
+    }
+    $hh = substr($tzc,1,2);
+    $mm = substr($tzc,3,2);
+    $iTzc = ($hh * 60 + $mm) * 60;
+    if ($neg) $iTzc = -1 * (int) $iTzc; 
+    /* stamp in gmt */
+    $stamp -= $iTzc;
+    /** now find what the server is at **/
+    $current = date('Z', time());
+    /* stamp in local timezone */
+    $stamp += $current;
+    
+    return $stamp;
+}
+
+/**
+  Switch system has been intentionaly chosen for the
+  internationalization of month and day names. The reason
+  is to make sure that _("") strings will go into the
+  main po.
+**/
+
+function getDayName( $day_number ) {
+
+    switch( $day_number ) {
+    case 0:
+        $ret = _("Sunday");
+        break;
+    case 1:
+        $ret = _("Monday");
+        break;
+    case 2:
+        $ret = _("Tuesday");
+        break;
+    case 3:
+        $ret = _("Wednesday");
+        break;
+    case 4:
+        $ret = _("Thursday");
+        break;
+    case 5:
+        $ret = _("Friday");
+        break;
+    case 6:
+        $ret = _("Saturday");
+        break;
+    default:
+        $ret = '';
+    }
+    return( $ret );
+}
+
+function getDayAbrv( $day_number ) {
+
+    switch( $day_number ) {
+    case 0:
+        $ret = _("Sun");
+        break;
+    case 1:
+        $ret = _("Mon");
+        break;
+    case 2:
+        $ret = _("Tue");
+        break;
+    case 3:
+        $ret = _("Wed");
+        break;
+    case 4:
+        $ret = _("Thu");
+        break;
+    case 5:
+        $ret = _("Fri");
+        break;
+    case 6:
+        $ret = _("Sat");
+        break;
+    default:
+        $ret = '';
+    }
+    return( $ret );
+}
+
+function getMonthName( $month_number ) {
+    switch( $month_number ) {
+     case '01':
+        $ret = _("January");
+        break;
+     case '02':
+        $ret = _("February");
+        break;
+     case '03':
+        $ret = _("March");
+        break;
+     case '04':
+        $ret = _("April");
+        break;
+     case '05':
+        $ret = _("May");
+        break;
+     case '06':
+        $ret = _("June");
+        break;
+     case '07':
+        $ret = _("July");
+        break;
+     case '08':
+        $ret = _("August");
+        break;
+     case '09':
+        $ret = _("September");
+        break;
+     case '10':
+        $ret = _("October");
+        break;
+     case '11':
+        $ret = _("November");
+        break;
+     case '12':
+        $ret = _("December");
+        break;
+     default:
+        $ret = '';
+    }
+    return( $ret );
+}
+
+function getMonthAbrv( $month_number ) {
+    switch( $month_number ) {
+     case '01':
+        $ret = _("Jan");
+        break;
+     case '02':
+        $ret = _("Feb");
+        break;
+     case '03':
+        $ret = _("Mar");
+        break;
+     case '04':
+        $ret = _("Apr");
+        break;
+     case '05':
+        $ret = _("Ma&#121;");
+        break;
+     case '06':
+        $ret = _("Jun");
+        break;
+     case '07':
+        $ret = _("Jul");
+        break;
+     case '08':
+        $ret = _("Aug");
+        break;
+     case '09':
+        $ret = _("Sep");
+        break;
+     case '10':
+        $ret = _("Oct");
+        break;
+     case '11':
+        $ret = _("Nov");
+        break;
+     case '12':
+        $ret = _("Dec");
+        break;
+     default:
+        $ret = '';
+    }
+    return( $ret );
+}
+
+
+function date_intl( $date_format, $stamp ) {
+
+    $ret = str_replace( 'D', '$1', $date_format );
+    $ret = str_replace( 'F', '$2', $ret );
+    $ret = str_replace( 'l', '$4', $ret );
+    $ret = str_replace( 'M', '$5', $ret );
+    $ret = date( '$3'. $ret . '$3', $stamp ); // Workaround for a PHP 4.0.4 problem
+    $ret = str_replace( '$1', getDayAbrv( date( 'w', $stamp ) ), $ret );
+    $ret = str_replace( '$5', getMonthAbrv( date( 'm', $stamp ) ), $ret );    
+    $ret = str_replace( '$2', getMonthName( date( 'm', $stamp ) ), $ret );
+    $ret = str_replace( '$4', getDayName( date( 'w', $stamp ) ), $ret );
+    $ret = str_replace( '$3', '', $ret );
+    
+    return( $ret );
+}
+
+function getLongDateString( $stamp ) {
+
+    global $hour_format;
+    
+    if ($stamp == -1) {
+        return '';
+    }
+
+    if ( $hour_format == SMPREF_TIME_12HR ) {
+        $date_format = _("D, F j, Y g:i a");
+    } else {
+        $date_format = _("D, F j, Y G:i");
+    }
+    
+    return( date_intl( $date_format, $stamp ) );
+
+}
+
+function getDateString( $stamp ) {
+
+    global $invert_time, $hour_format, $show_full_date;
+
+    if ( $stamp == -1 ) {
+       return '';
+    }
+    
+    $now = time();
+    
+    $dateZ = date('Z', $now );
+    if ($invert_time) {
+        $dateZ = - $dateZ;
+    }
+    $midnight = $now - ($now % 86400) - $dateZ;
+    $nextmid = $midnight + 86400;
+    
+    if (($show_full_date == 1) || ($nextmid < $stamp)) {
+        $date_format = _("M j, Y");
+    } else if ($midnight < $stamp) {
+        /* Today */
+        if ( $hour_format == SMPREF_TIME_12HR ) {
+            $date_format = _("g:i a");
+        } else {
+            $date_format = _("G:i");
+        }
+    } else if ($midnight - 518400 < $stamp) {
+        /* This week */
+        if ( $hour_format == SMPREF_TIME_12HR ) {
+            $date_format = _("D, g:i a");
+        } else {
+            $date_format = _("D, G:i");
+        }
+    } else {
+        /* before this week */
+        $date_format = _("M j, Y");
+    }
+    
+    return( date_intl( $date_format, $stamp ) );
+}
+
+function getTimeStamp($dateParts) {
+    /** $dateParts[0] == <day of week>   Mon, Tue, Wed
+    ** $dateParts[1] == <day of month>  23
+    ** $dateParts[2] == <month>         Jan, Feb, Mar
+    ** $dateParts[3] == <year>          1999
+    ** $dateParts[4] == <time>          18:54:23 (HH:MM:SS)
+    ** $dateParts[5] == <from GMT>      +0100
+    ** $dateParts[6] == <zone>          (EDT)
     **
+    ** NOTE:  In RFC 822, it states that <day of week> is optional.
+    **        In that case, dateParts[0] would be the <day of month>
+    **        and everything would be bumped up one.
     **/
 
-   $date_php = true;
-
-   // corrects a time stamp to be the local time
-   function getGMTSeconds($stamp, $gmt) {
-      if (($gmt == "Pacific") || ($gmt == "PST"))
-         $gmt = "-0800";
-      else if (($gmt == "EDT"))
-         $gmt = "-0400";
-      else if (($gmt == "Eastern") || ($gmt == "EST") || ($gmt == "CDT"))
-         $gmt = "-0500";
-      else if (($gmt == "Central") || ($gmt == "CST") || ($gmt == "MDT"))
-         $gmt = "-0600";
-      else if (($gmt == "Mountain") || ($gmt == "MST") || ($gmt == "PDT"))
-         $gmt = "-0700";
-      else if ($gmt == "BST")
-         $gmt = "+0100";
-      else if ($gmt == "EET")
-         $gmt = "+0200";
-      else if ($gmt == "GMT")
-         $gmt = "+0000";
-      else if ($gmt == "HKT")
-         $gmt = "+0800";
-      else if ($gmt == "IST")
-         $gmt = "+0200";
-      else if ($gmt == "JST")
-         $gmt = "+0900";
-      else if ($gmt == "MET")
-         $gmt = "+0100";
-      else if ($gmt == "MET DST" || $gmt == "METDST")
-         $gmt = "+0200";
-      
-      if (substr($gmt, 0, 1) == "-") {
-         $neg = true;
-         $gmt = substr($gmt, 1, strlen($gmt));
-      } else if (substr($gmt, 0, 1) == "+") {
-         $neg = false;
-         $gmt = substr($gmt, 1, strlen($gmt));
-      } else
-         $neg = false;
-
-      $gmt = substr($gmt, 0, 2);
-      $gmt = $gmt * 3600;
-      if ($neg == true)
-         $gmt = "-$gmt";
-      else
-         $gmt = "+$gmt";
-
-      /** now find what the server is at **/
-      $current = date("Z", time());
-      if ($invert_time)
-          $current = - $current;
-      $stamp = (int)$stamp - (int)$gmt + (int)$current;
-
-      return $stamp;
-   }
-
-   function getLongDateString($stamp) {
-      return date("D, F j, Y g:i a", $stamp);
-   }
+    /* 
+     * Simply check to see if the first element in the dateParts
+     * array is an integer or not.
+     * Since the day of week is optional, this check is needed.
+     */
+     if (count($dateParts) <2) {
+        return 0;
+     }
 
-   function getDateString($stamp) {
-      $now = time();
-      $dateZ = date("Z", $now);
-      if ($invert_time)
-          $dateZ = - $dateZ;
-      $midnight = $now - ($now % 86400) - 86400 - $dateZ;
-
-      if ($midnight < $stamp) {
-         // Today
-         return date("g:i a", $stamp);
-      } else if ($midnight - (60 * 60 * 24 * 6) < $stamp) {
-         // This week
-         return date("D, g:i a", $stamp);
-      } else {
-         // before this week 
-         return date("M j, Y", $stamp);
-      }
-   }
+    /* remove day of week */
+    if (!is_numeric(trim($dateParts[0]))) {
+        $dataParts = array_shift($dateParts);
+    }
+    /* calculate timestamp separated from the zone and obs-zone */
+    $stamp = strtotime(implode (' ', array_splice ($dateParts,0,4)));
+    if (!isset($dateParts[0])) {
+        $dateParts[0] = '+0000';
+    }
 
-   function getTimeStamp($dateParts) {
-      /** $dateParts[0] == <day of week>   Mon, Tue, Wed
-       ** $dateParts[1] == <day of month>  23
-       ** $dateParts[2] == <month>         Jan, Feb, Mar
-       ** $dateParts[3] == <year>          1999
-       ** $dateParts[4] == <time>          18:54:23 (HH:MM:SS)
-       ** $dateParts[5] == <from GMT>      +0100
-       ** $dateParts[6] == <zone>          (EDT)
-       **
-       ** NOTE:  In RFC 822, it states that <day of week> is optional.
-       **        In that case, dateParts[0] would be the <day of month>
-       **        and everything would be bumped up one.
-       **/
-
-      // Simply check to see if the first element in the dateParts
-      // array is an integer or not.
-      //    Since the day of week is optional, this check is needed.  
-      //    
-      //    The old code used eregi("mon|tue|wed|thu|fri|sat|sun",
-      //    $dateParts[0], $tmp) to find if the first element was the
-      //    day of week or day of month. This is an expensive call
-      //    (processing time) to have inside a loop. Doing it this way
-      //    saves quite a bit of time for large mailboxes.
-      //
-      //    It is also quicker to call explode only once rather than
-      //    the 3 times it was getting called by calling the functions
-      //    getHour, getMinute, and getSecond.
-      //
-      if (intval(trim($dateParts[0])) > 0) {
-         $string = $dateParts[0] . " " . $dateParts[1] . " " . $dateParts[2] . " " . $dateParts[3];
-         return getGMTSeconds(strtotime($string), $dateParts[4]);
-      }
-      $string = $dateParts[0] . " " . $dateParts[1] . " " . $dateParts[2] . " " . $dateParts[3] . " " . $dateParts[4];
-      return getGMTSeconds(strtotime($string), $dateParts[5]);
-   }
+    if (!preg_match('/^[+-]{1}[0-9]{4}$/',$dateParts[0])) {
+        /* zone in obs-zone format */
+        if (preg_match('/\((.+)\)/',$dateParts[0],$regs)) {
+            $obs_zone = $regs[1];
+        } else {
+            $obs_zone = $dateParts[0];
+        }
+        return getGMTSeconds($stamp, $obs_zone);
+    } else {
+        return getGMTSeconds($stamp, $dateParts[0]);
+    }
+}
 
-   // I use this function for profiling. Should never be called in
-   // actual versions of squirrelmail released to public.
+/* I use this function for profiling. Should never be called in
+   actual versions of squirrelmail released to public. */
+/*
    function getmicrotime() {
       $mtime = microtime();
-      $mtime = explode(" ",$mtime);
+      $mtime = explode(' ',$mtime);
       $mtime = $mtime[1] + $mtime[0];
       return ($mtime);
    }
+*/
 ?>