include/timezones/check.php

   1 <?php
   2
   3 /**
   4  * SquirrelMail time zone library - time zone validation script.
   5  *
   6  * @copyright 2005-2021 The SquirrelMail Project Team
   7  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
   8  * @version $Id$
   9  * @package squirrelmail
  10  * @subpackage timezones
  11  */
  12
  13 /** @ignore */
  14 define('SM_PATH','../../');
  15
  16 /** Send http header */
  17 header('Content-Type: text/plain');
  18
  19 /** Information about script */
  20 echo "--------------------------------------------\n"
  21     ." SquirrelMail time zone library test script\n"
  22     ."--------------------------------------------\n";
  23
  24 /** load SM config */
  25 unset($time_zone_type);
  26 if (file_exists(SM_PATH.'config/config.php')) {
  27     include(SM_PATH.'config/config.php');
  28 } else {
  29     echo "SquirrelMail configuration file is missing.\n";
  30     exit();
  31 }
  32
  33 /**
  34  * Script does not test, if standard time zone libraries are missing.
  35  * If they are missing or corrupted - php can fail, scream and show
  36  * finger or other parts of interpreter.
  37  */
  38
  39 /** load original reference */
  40 include(SM_PATH.'include/timezones/standard_orig.php');
  41
  42 /** move timezones to different array */
  43 $aTimeZonesOrig = $aTimeZones;
  44 unset($aTimeZones);
  45
  46 if (! isset($time_zone_type) || $time_zone_type == 0 || $time_zone_type == 1) {
  47     /** load new time zone library */
  48     include(SM_PATH.'include/timezones/standard.php');
  49 } elseif ($time_zone_type == 2 || $time_zone_type == 3) {
  50     /** load custom time zone library */
  51     $aTimeZones=array();
  52     if (file_exists(SM_PATH . 'config/timezones.php')) {
  53         include(SM_PATH.'config/timezones.php');
  54     } else {
  55         echo "ERROR: config/timezones.php is missing.\n";
  56         exit();
  57     }
  58 } else {
  59     echo "ERROR: invalid value in time_zone_type configuration.\n";
  60     exit();
  61 }
  62
  63 if (! isset($aTimeZones) || ! is_array($aTimeZones) || empty($aTimeZones)) {
  64     echo "ERROR: timezones array is missing or empty.\n";
  65     exit();
  66 }
  67
  68 $error = false;
  69
  70 /** test backward compatibility */
  71 echo "Testing backward compatibility:\n"
  72     ."  Failed time zones:\n";
  73 foreach ($aTimeZonesOrig as $TzKey => $TzData) {
  74     if (! isset($aTimeZones[$TzKey])) {
  75         echo '    '.$TzKey."\n";
  76         $error = true;
  77     }
  78 }
  79 if (! $error) {
  80     echo "    none. Looking good.\n";
  81 } else {
  82     // error is not fatal, but test should fail only with limited custom time zone sets
  83 }
  84
  85 echo "\n";
  86
  87 /** test forward compatibility */
  88 $error = false;
  89 echo "Testing forward compatibility:\n"
  90     ."  New time zones:\n";
  91 foreach ($aTimeZones as $TzKey => $TzData) {
  92     if (! isset($aTimeZonesOrig[$TzKey])) {
  93         echo '    '.$TzKey."\n";
  94         $error = true;
  95     }
  96 }
  97 if (! $error) {
  98     echo "    no new time zones.\n";
  99 } else {
 100     // error is not fatal. test should show new time zones, that are not
 101     // present in timezones.cfg
 102 }
 103
 104 echo "\n";
 105
 106 /** test links */
 107 $error = false;
 108 echo "Testing time zone links:\n"
 109     ."  Failed time zone links:\n";
 110 foreach ($aTimeZones as $TzKey => $TzData) {
 111     if (isset($TzData['LINK']) && ! isset($aTimeZones[$TzData['LINK']]['TZ'])) {
 112         echo '    '.$TzKey.' = '.$TzData['LINK']."\n";
 113         $error = true;
 114     }
 115 }
 116 if (! $error) {
 117     echo "    none. Looking good.\n";
 118 } else {
 119     // error is fatal. 'LINK' should always reffer to existing 'TZ' entries
 120 }
 121
 122 echo "\n";
 123
 124 /** Test TZ subkeys */
 125 $error = false;
 126 echo "Testing time zone TZ subkeys:\n"
 127     ."  Failed time zone TZ subkeys:\n";
 128 foreach ($aTimeZones as $TzKey => $TzData) {
 129     if (! isset($TzData['LINK']) && ! isset($TzData['TZ'])) {
 130         echo '    '.$TzKey."\n";
 131         $error = true;
 132     }
 133 }
 134 if (! $error) {
 135     echo "    none. Looking good.\n";
 136 } else {
 137     // LINK or TZ are required for strict time zones. Interface won't break, but
 138     // any error means inconsistency in time zone array.
 139 }
 140
 141 echo "\n";
 142
 143 /** Test NAME subkeys */
 144 $error = false;
 145 echo "Testing time zone NAME subkeys:\n"
 146     ."  Time zones without NAME subkeys:\n";
 147 foreach ($aTimeZones as $TzKey => $TzData) {
 148     if (isset($TzData['TZ']) && ! isset($TzData['NAME'])) {
 149         echo '    '.$TzKey."\n";
 150         $error = true;
 151     }
 152 }
 153 if (! $error) {
 154     echo "    none.\n";
 155 } else {
 156     // error is not fatal. It would be nice if all geographic locations
 157     // use some human readable name
 158 }
 159
 160 echo "\n";
 161
 162 /** Test NAME subkeys */
 163 $error = false;
 164 echo "  Time zones with empty NAME subkeys:\n";
 165 foreach ($aTimeZones as $TzKey => $TzData) {
 166     if (isset($TzData['NAME']) && empty($TzData['NAME'])) {
 167         echo '    '.$TzKey."\n";
 168         $error = true;
 169     }
 170 }
 171 if (! $error) {
 172     echo "    none. Looking good\n";
 173 } else {
 174     // error is fatal. NAME should not be empty string.
 175 }
 176
 177 echo "\n";
 178
 179 /** Test TZ subkeys with UCT/UTC/GMT offsets */
 180 $error = false;
 181 echo "Testing TZ subkeys with UCT/UTC/GMT offsets:\n"
 182     ."  Time zones UCT/UTC/GMT offsets:\n";
 183 foreach ($aTimeZones as $TzKey => $TzData) {
 184     if (isset($TzData['TZ']) && preg_match("/^(UCT)|(UTC)|(GMT).+/i",$TzData['TZ'])) {
 185         echo '    '.$TzKey.' = '.$TzData['TZ']."\n";
 186         $error = true;
 187     }
 188 }
 189 if (! $error) {
 190     echo "    none.\n";
 191 } else {
 192     // I think error is fatal for UCT with offsets. date('T',time()) is corrupted.
 193 }
 194
 195 echo "\n";
 196
 197 /** Test TZ subkeys with custom TZ values and no offsets */
 198 $error = false;
 199 echo "Testing TZ subkeys with custom TZ values and no offsets:\n"
 200     ."  Time zones with custom TZ values and no offsets:\n";
 201 foreach ($aTimeZones as $TzKey => $TzData) {
 202     if (isset($TzData['TZ']) &&
 203         ! preg_match("/^((UCT)|(UTC)|(GMT).+)|(GMT)$/i",$TzData['TZ']) &&
 204         preg_match("/^[a-z]+$/i",$TzData['TZ'])) {
 205         echo '    '.$TzKey.' = '.$TzData['TZ']."\n";
 206         $error = true;
 207     }
 208 }
 209 if (! $error) {
 210     echo "    none.\n";
 211 } else {
 212     // I think error is fatal. Time zone formating requires time zone name and offset from GMT.
 213 }
 214
 215 echo "\n";
 216
 217 echo "Done!\n";