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