src/Core/Update.php

   1 <?php
   2
   3 namespace Friendica\Core;
   4
   5 use Friendica\Database\DBA;
   6 use Friendica\Database\DBStructure;
   7 use Friendica\Util\Strings;
   8
   9 class Update
  10 {
  11         const SUCCESS = 0;
  12         const FAILED  = 1;
  13
  14         /**
  15          * @brief Function to check if the Database structure needs an update.
  16          *
  17          * @param string $basePath The base path of this application
  18          * @param boolean $via_worker boolean Is the check run via the worker?
  19          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  20          */
  21         public static function check($basePath, $via_worker)
  22         {
  23                 if (!DBA::connected()) {
  24                         return;
  25                 }
  26
  27                 $build = Config::get('system', 'build');
  28
  29                 if (empty($build)) {
  30                         Config::set('system', 'build', DB_UPDATE_VERSION - 1);
  31                         $build = DB_UPDATE_VERSION - 1;
  32                 }
  33
  34                 // We don't support upgrading from very old versions anymore
  35                 if ($build < NEW_UPDATE_ROUTINE_VERSION) {
  36                         die('You try to update from a version prior to database version 1170. The direct upgrade path is not supported. Please update to version 3.5.4 before updating to this version.');
  37                 }
  38
  39                 if ($build < DB_UPDATE_VERSION) {
  40                         if ($via_worker) {
  41                                 // Calling the database update directly via the worker enables us to perform database changes to the workerqueue table itself.
  42                                 // This is a fallback, since normally the database update will be performed by a worker job.
  43                                 // This worker job doesn't work for changes to the "workerqueue" table itself.
  44                                 self::run($basePath);
  45                         } else {
  46                                 Worker::add(PRIORITY_CRITICAL, 'DBUpdate');
  47                         }
  48                 }
  49         }
  50
  51         /**
  52          * Automatic database updates
  53          *
  54          * @param string $basePath The base path of this application
  55          * @param bool $force      Force the Update-Check even if the database version doesn't match
  56          * @param bool $override   Overrides any running/stuck updates
  57          * @param bool $verbose    Run the Update-Check verbose
  58          * @param bool $sendMail   Sends a Mail to the administrator in case of success/failure
  59          *
  60          * @return string Empty string if the update is successful, error messages otherwise
  61          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  62          */
  63         public static function run($basePath, $force = false, $override = false, $verbose = false, $sendMail = true)
  64         {
  65                 // In force mode, we release the dbupdate lock first
  66                 // Necessary in case of an stuck update
  67                 if ($override) {
  68                         Lock::release('dbupdate', true);
  69                 }
  70
  71                 $build = Config::get('system', 'build');
  72
  73                 if (empty($build) || ($build > DB_UPDATE_VERSION)) {
  74                         $build = DB_UPDATE_VERSION - 1;
  75                         Config::set('system', 'build', $build);
  76                 }
  77
  78                 if ($build != DB_UPDATE_VERSION || $force) {
  79                         require_once 'update.php';
  80
  81                         $stored = intval($build);
  82                         $current = intval(DB_UPDATE_VERSION);
  83                         if ($stored < $current || $force) {
  84                                 Config::load('database');
  85
  86                                 Logger::log('Update from \'' . $stored . '\'  to \'' . $current . '\' - starting', Logger::DEBUG);
  87
  88                                 // Compare the current structure with the defined structure
  89                                 // If the Lock is acquired, never release it automatically to avoid double updates
  90                                 if (Lock::acquire('dbupdate', 120, Cache::INFINITE)) {
  91
  92                                         // run the pre_update_nnnn functions in update.php
  93                                         for ($x = $stored + 1; $x <= $current; $x++) {
  94                                                 $r = self::runUpdateFunction($x, 'pre_update');
  95                                                 if (!$r) {
  96                                                         break;
  97                                                 }
  98                                         }
  99
 100                                         // update the structure in one call
 101                                         $retval = DBStructure::update($basePath, $verbose, true);
 102                                         if (!empty($retval)) {
 103                                                 if ($sendMail) {
 104                                                         self::updateFailed(
 105                                                                 DB_UPDATE_VERSION,
 106                                                                 $retval
 107                                                         );
 108                                                 }
 109                                                 Logger::log('ERROR: Update from \'' . $stored . '\'  to \'' . $current . '\' - failed:  ' - $retval, Logger::ALL);
 110                                                 Lock::release('dbupdate');
 111                                                 return $retval;
 112                                         } else {
 113                                                 Config::set('database', 'last_successful_update', $current);
 114                                                 Config::set('database', 'last_successful_update_time', time());
 115                                                 Logger::log('Update from \'' . $stored . '\'  to \'' . $current . '\' - finished', Logger::DEBUG);
 116                                         }
 117
 118                                         // run the update_nnnn functions in update.php
 119                                         for ($x = $stored + 1; $x <= $current; $x++) {
 120                                                 $r = self::runUpdateFunction($x, 'update');
 121                                                 if (!$r) {
 122                                                         break;
 123                                                 }
 124                                         }
 125
 126                                         Logger::log('Update from \'' . $stored . '\'  to \'' . $current . '\' - successful', Logger::DEBUG);
 127                                         if ($sendMail) {
 128                                                 self::updateSuccessfull($stored, $current);
 129                                         }
 130
 131                                         Lock::release('dbupdate');
 132                                 }
 133                         }
 134                 }
 135
 136                 return '';
 137         }
 138
 139         /**
 140          * Executes a specific update function
 141          *
 142          * @param int    $x      the DB version number of the function
 143          * @param string $prefix the prefix of the function (update, pre_update)
 144          *
 145          * @return bool true, if the update function worked
 146          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 147          */
 148         public static function runUpdateFunction($x, $prefix)
 149         {
 150                 $funcname = $prefix . '_' . $x;
 151
 152                 Logger::log('Update function \'' . $funcname . '\' - start', Logger::DEBUG);
 153
 154                 if (function_exists($funcname)) {
 155                         // There could be a lot of processes running or about to run.
 156                         // We want exactly one process to run the update command.
 157                         // So store the fact that we're taking responsibility
 158                         // after first checking to see if somebody else already has.
 159                         // If the update fails or times-out completely you may need to
 160                         // delete the config entry to try again.
 161
 162                         if (Lock::acquire('dbupdate_function', 120,Cache::INFINITE)) {
 163
 164                                 // call the specific update
 165                                 $retval = $funcname();
 166
 167                                 if ($retval) {
 168                                         //send the administrator an e-mail
 169                                         self::updateFailed(
 170                                                 $x,
 171                                                 L10n::t('Update %s failed. See error logs.', $x)
 172                                         );
 173                                         Logger::log('ERROR: Update function \'' . $funcname . '\' - failed: ' . $retval, Logger::ALL);
 174                                         Lock::release('dbupdate_function');
 175                                         return false;
 176                                 } else {
 177                                         Config::set('database', 'last_successful_update_function', $funcname);
 178                                         Config::set('database', 'last_successful_update_function_time', time());
 179
 180                                         if ($prefix == 'update') {
 181                                                 Config::set('system', 'build', $x);
 182                                         }
 183
 184                                         Lock::release('dbupdate_function');
 185                                         Logger::log('Update function \'' . $funcname . '\' - finished', Logger::DEBUG);
 186                                         return true;
 187                                 }
 188                         }
 189                 } else {
 190                          Logger::log('Skipping \'' . $funcname . '\' without executing', Logger::DEBUG);
 191
 192                         Config::set('database', 'last_successful_update_function', $funcname);
 193                         Config::set('database', 'last_successful_update_function_time', time());
 194
 195                         if ($prefix == 'update') {
 196                                 Config::set('system', 'build', $x);
 197                         }
 198
 199                         return true;
 200                 }
 201         }
 202
 203         /**
 204          * send the email and do what is needed to do on update fails
 205          *
 206          * @param int    $update_id     number of failed update
 207          * @param string $error_message error message
 208          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 209          */
 210         private static function updateFailed($update_id, $error_message) {
 211                 //send the administrators an e-mail
 212                 $admin_mail_list = "'".implode("','", array_map(['Friendica\Database\DBA', 'escape'], explode(",", str_replace(" ", "", Config::get('config', 'admin_email')))))."'";
 213                 $adminlist = DBA::select('user', ['uid', 'language', 'email'], ['`email` IN (%s)', $admin_mail_list]);
 214
 215                 // No valid result?
 216                 if (!DBA::isResult($adminlist)) {
 217                         Logger::log(sprintf('Cannot notify administrators about update_id=%d, error_message=%s', $update_id, $error_message), Logger::INFO);
 218
 219                         // Don't continue
 220                         return;
 221                 }
 222
 223                 // every admin could had different language
 224                 foreach ($adminlist as $admin) {
 225                         $lang = (($admin['language'])?$admin['language']:'en');
 226                         L10n::pushLang($lang);
 227
 228                         $preamble = Strings::deindent(L10n::t("
 229                                 The friendica developers released update %s recently,
 230                                 but when I tried to install it, something went terribly wrong.
 231                                 This needs to be fixed soon and I can't do it alone. Please contact a
 232                                 friendica developer if you can not help me on your own. My database might be invalid.",
 233                                 $update_id));
 234                         $body = L10n::t("The error message is\n[pre]%s[/pre]", $error_message);
 235
 236                         notification([
 237                                         'uid'      => $admin['uid'],
 238                                         'type'     => SYSTEM_EMAIL,
 239                                         'to_email' => $admin['email'],
 240                                         'preamble' => $preamble,
 241                                         'body'     => $body,
 242                                         'language' => $lang]
 243                         );
 244                         L10n::popLang();
 245                 }
 246
 247                 //try the logger
 248                 Logger::log("CRITICAL: Database structure update failed: " . $error_message);
 249         }
 250
 251         private static function updateSuccessfull($from_build, $to_build)
 252         {
 253                 //send the administrators an e-mail
 254                 $admin_mail_list = "'".implode("','", array_map(['Friendica\Database\DBA', 'escape'], explode(",", str_replace(" ", "", Config::get('config', 'admin_email')))))."'";
 255                 $adminlist = DBA::select('user', ['uid', 'language', 'email'], ['`email` IN (%s)', $admin_mail_list]);
 256
 257                 if (DBA::isResult($adminlist)) {
 258                         // every admin could had different language
 259                         foreach ($adminlist as $admin) {
 260                                 $lang = (($admin['language']) ? $admin['language'] : 'en');
 261                                 L10n::pushLang($lang);
 262
 263                                 $preamble = Strings::deindent(L10n::t("
 264                                         The friendica database was successfully updated from %s to %s.",
 265                                         $from_build, $to_build));
 266
 267                                 notification([
 268                                                 'uid' => $admin['uid'],
 269                                                 'type' => SYSTEM_EMAIL,
 270                                                 'to_email' => $admin['email'],
 271                                                 'preamble' => $preamble,
 272                                                 'body' => $preamble,
 273                                                 'language' => $lang]
 274                                 );
 275                                 L10n::popLang();
 276                         }
 277                 }
 278
 279                 //try the logger
 280                 Logger::log("Database structure update successful.", Logger::TRACE);
 281         }
 282 }