| 1 | <?php |
| 2 | /** |
| 3 | ** date.php |
| 4 | ** |
| 5 | ** Copyright (c) 1999-2001 The Squirrelmail Development Team |
| 6 | ** Licensed under the GNU GPL. For full terms see the file COPYING. |
| 7 | ** |
| 8 | ** Takes a date and parses it into a usable format. The form that a |
| 9 | ** date SHOULD arrive in is: |
| 10 | ** <Tue,> 29 Jun 1999 09:52:11 -0500 (EDT) |
| 11 | ** (as specified in RFC 822) -- 'Tue' is optional |
| 12 | ** |
| 13 | ** $Id$ |
| 14 | **/ |
| 15 | |
| 16 | // corrects a time stamp to be the local time |
| 17 | function getGMTSeconds($stamp, $gmt) { |
| 18 | global $invert_time; |
| 19 | if (($gmt == 'Pacific') || ($gmt == 'PST')) |
| 20 | $gmt = '-0800'; |
| 21 | else if (($gmt == 'EDT')) |
| 22 | $gmt = '-0400'; |
| 23 | else if (($gmt == 'Eastern') || ($gmt == 'EST') || ($gmt == 'CDT')) |
| 24 | $gmt = '-0500'; |
| 25 | else if (($gmt == 'Central') || ($gmt == 'CST') || ($gmt == 'MDT')) |
| 26 | $gmt = '-0600'; |
| 27 | else if (($gmt == 'Mountain') || ($gmt == 'MST') || ($gmt == 'PDT')) |
| 28 | $gmt = '-0700'; |
| 29 | else if ($gmt == 'BST') |
| 30 | $gmt = '+0100'; |
| 31 | else if ($gmt == 'EET') |
| 32 | $gmt = '+0200'; |
| 33 | else if ($gmt == 'GMT') |
| 34 | $gmt = '+0000'; |
| 35 | else if ($gmt == 'HKT') |
| 36 | $gmt = '+0800'; |
| 37 | else if ($gmt == 'IST') |
| 38 | $gmt = '+0200'; |
| 39 | else if ($gmt == 'JST') |
| 40 | $gmt = '+0900'; |
| 41 | else if ($gmt == 'KST') |
| 42 | $gmt = "+0900"; |
| 43 | else if ($gmt == 'MET') |
| 44 | $gmt = '+0100'; |
| 45 | else if ($gmt == 'MET DST' || $gmt == 'METDST') |
| 46 | $gmt = '+0200'; |
| 47 | |
| 48 | if (substr($gmt, 0, 1) == '-') { |
| 49 | $neg = true; |
| 50 | $gmt = substr($gmt, 1, strlen($gmt)); |
| 51 | } else if (substr($gmt, 0, 1) == '+') { |
| 52 | $neg = false; |
| 53 | $gmt = substr($gmt, 1, strlen($gmt)); |
| 54 | } else |
| 55 | $neg = false; |
| 56 | |
| 57 | $gmt = substr($gmt, 0, 2); |
| 58 | $gmt = $gmt * 3600; |
| 59 | if ($neg == true) |
| 60 | $gmt = "-$gmt"; |
| 61 | else |
| 62 | $gmt = "+$gmt"; |
| 63 | |
| 64 | /** now find what the server is at **/ |
| 65 | $current = date('Z', time()); |
| 66 | if ($invert_time) |
| 67 | $current = - $current; |
| 68 | $stamp = (int)$stamp - (int)$gmt + (int)$current; |
| 69 | |
| 70 | return $stamp; |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | Switch system has been intentionaly choosed for the |
| 75 | internationalization of month and day names. The reason |
| 76 | is to make sure that _("") strings will go into the |
| 77 | main po. |
| 78 | **/ |
| 79 | |
| 80 | function getDayName( $day_number ) { |
| 81 | |
| 82 | switch( $day_number ) { |
| 83 | case 0: |
| 84 | $ret = _("Sunday"); |
| 85 | break; |
| 86 | case 1: |
| 87 | $ret = _("Monday"); |
| 88 | break; |
| 89 | case 2: |
| 90 | $ret = _("Tuesday"); |
| 91 | break; |
| 92 | case 3: |
| 93 | $ret = _("Wednesday"); |
| 94 | break; |
| 95 | case 4: |
| 96 | $ret = _("Thursday"); |
| 97 | break; |
| 98 | case 5: |
| 99 | $ret = _("Friday"); |
| 100 | break; |
| 101 | case 6: |
| 102 | $ret = _("Saturday"); |
| 103 | break; |
| 104 | default: |
| 105 | $ret = ''; |
| 106 | } |
| 107 | return( $ret ); |
| 108 | } |
| 109 | |
| 110 | function getMonthName( $month_number ) { |
| 111 | switch( $month_number ) { |
| 112 | case '01': |
| 113 | $ret = _("January"); |
| 114 | break; |
| 115 | case '02': |
| 116 | $ret = _("February"); |
| 117 | break; |
| 118 | case '03': |
| 119 | $ret = _("March"); |
| 120 | break; |
| 121 | case '04': |
| 122 | $ret = _("April"); |
| 123 | break; |
| 124 | case '05': |
| 125 | $ret = _("May"); |
| 126 | break; |
| 127 | case '06': |
| 128 | $ret = _("June"); |
| 129 | break; |
| 130 | case '07': |
| 131 | $ret = _("July"); |
| 132 | break; |
| 133 | case '08': |
| 134 | $ret = _("August"); |
| 135 | break; |
| 136 | case '09': |
| 137 | $ret = _("September"); |
| 138 | break; |
| 139 | case '10': |
| 140 | $ret = _("October"); |
| 141 | break; |
| 142 | case '11': |
| 143 | $ret = _("November"); |
| 144 | break; |
| 145 | case '12': |
| 146 | $ret = _("December"); |
| 147 | break; |
| 148 | default: |
| 149 | $ret = ''; |
| 150 | } |
| 151 | return( $ret ); |
| 152 | } |
| 153 | |
| 154 | function date_intl( $date_format, $stamp ) { |
| 155 | |
| 156 | $ret = str_replace( 'D', '$1', $date_format ); |
| 157 | $ret = str_replace( 'F', '$2', $ret ); |
| 158 | $ret = date( '$3'. $ret . '$3', $stamp ); // Workaround for a PHP 4.0.4 problem |
| 159 | $ret = str_replace( '$1', substr( getDayName( date( 'w', $stamp ) ), 0, 3 ), $ret ); |
| 160 | $ret = str_replace( '$2', getMonthName( date( 'm', $stamp ) ), $ret ); |
| 161 | $ret = str_replace( '$3', '', $ret ); |
| 162 | |
| 163 | return( $ret ); |
| 164 | } |
| 165 | |
| 166 | function getLongDateString( $stamp ) { |
| 167 | |
| 168 | return( date_intl( _("D, F j, Y g:i a"), $stamp ) ); |
| 169 | |
| 170 | } |
| 171 | |
| 172 | function getDateString( $stamp ) { |
| 173 | |
| 174 | global $invert_time; |
| 175 | |
| 176 | $now = time(); |
| 177 | |
| 178 | $dateZ = date('Z', $now ); |
| 179 | if ($invert_time) |
| 180 | $dateZ = - $dateZ; |
| 181 | $midnight = $now - ($now % 86400) - $dateZ; |
| 182 | |
| 183 | if ($midnight < $stamp) { |
| 184 | // Today |
| 185 | $date_format = _("g:i a"); |
| 186 | } else if ($midnight - 518400 < $stamp) { |
| 187 | // This week |
| 188 | $date_format = _("D, g:i a"); |
| 189 | } else { |
| 190 | // before this week |
| 191 | $date_format = _("M j, Y"); |
| 192 | } |
| 193 | |
| 194 | return( date_intl( $date_format, $stamp ) ); |
| 195 | // return( date( $date_i, $stamp ) ); |
| 196 | } |
| 197 | |
| 198 | function getTimeStamp($dateParts) { |
| 199 | /** $dateParts[0] == <day of week> Mon, Tue, Wed |
| 200 | ** $dateParts[1] == <day of month> 23 |
| 201 | ** $dateParts[2] == <month> Jan, Feb, Mar |
| 202 | ** $dateParts[3] == <year> 1999 |
| 203 | ** $dateParts[4] == <time> 18:54:23 (HH:MM:SS) |
| 204 | ** $dateParts[5] == <from GMT> +0100 |
| 205 | ** $dateParts[6] == <zone> (EDT) |
| 206 | ** |
| 207 | ** NOTE: In RFC 822, it states that <day of week> is optional. |
| 208 | ** In that case, dateParts[0] would be the <day of month> |
| 209 | ** and everything would be bumped up one. |
| 210 | **/ |
| 211 | |
| 212 | // Simply check to see if the first element in the dateParts |
| 213 | // array is an integer or not. |
| 214 | // Since the day of week is optional, this check is needed. |
| 215 | // |
| 216 | // The old code used eregi('mon|tue|wed|thu|fri|sat|sun', |
| 217 | // $dateParts[0], $tmp) to find if the first element was the |
| 218 | // day of week or day of month. This is an expensive call |
| 219 | // (processing time) to have inside a loop. Doing it this way |
| 220 | // saves quite a bit of time for large mailboxes. |
| 221 | // |
| 222 | // It is also quicker to call explode only once rather than |
| 223 | // the 3 times it was getting called by calling the functions |
| 224 | // getHour, getMinute, and getSecond. |
| 225 | // |
| 226 | if (! isset($dateParts[1])) $dateParts[1] = ''; |
| 227 | if (! isset($dateParts[2])) $dateParts[2] = ''; |
| 228 | if (! isset($dateParts[3])) $dateParts[3] = ''; |
| 229 | if (! isset($dateParts[4])) $dateParts[4] = ''; |
| 230 | if (! isset($dateParts[5])) $dateParts[5] = ''; |
| 231 | if (intval(trim($dateParts[0])) > 0) { |
| 232 | $string = $dateParts[0] . ' ' . $dateParts[1] . ' ' . |
| 233 | $dateParts[2] . ' ' . $dateParts[3]; |
| 234 | return getGMTSeconds(strtotime($string), $dateParts[4]); |
| 235 | } |
| 236 | $string = $dateParts[0] . ' ' . $dateParts[1] . ' ' . |
| 237 | $dateParts[2] . ' ' . $dateParts[3] . ' ' . $dateParts[4]; |
| 238 | if (isset($dateParts[5])) |
| 239 | return getGMTSeconds(strtotime($string), $dateParts[5]); |
| 240 | else |
| 241 | return getGMTSeconds(strtotime($string), ''); |
| 242 | } |
| 243 | |
| 244 | // I use this function for profiling. Should never be called in |
| 245 | // actual versions of squirrelmail released to public. |
| 246 | /* |
| 247 | function getmicrotime() { |
| 248 | $mtime = microtime(); |
| 249 | $mtime = explode(' ',$mtime); |
| 250 | $mtime = $mtime[1] + $mtime[0]; |
| 251 | return ($mtime); |
| 252 | } |
| 253 | */ |
| 254 | ?> |