[Sommaire] [Imprimer]

   1  <?php
   2  /*****************************************************
   3  * This file is part of Agora, web based content management system.
   4  *
   5  * Agora is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * Agora is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details (file "COPYING").
  13  *
  14  * Copyright © Arnaud Martin, Antoine Pitrou et Philippe Rivière.
  15  * List of authors detailed in "copyright_fr.html" file.
  16  * E-mail : agora@sig.premier-ministre.gouv.fr
  17  * Web site : http://www.agora.gouv.fr
  18  *****************************************************/
  19  define('EMBARGOFILENAME', dirname(__FILE__). '/../../data/embargo.php');
  20  
  21  function writeEmbargo ($date) {
  22      $embargos = array();
  23  
  24      if (file_exists(EMBARGOFILENAME)) {
  25          $embargos = file(EMBARGOFILENAME);
  26      }
  27  
  28      // lock 
  29      $embargos[] = $date;
  30      $embargos = array_unique($embargos);
  31  
  32      if ($f = fopen(EMBARGOFILENAME, 'w')) {
  33          // boucle d'attente
  34          while (!flock($f, LOCK_EX)); 
  35  
  36          fwrite($f, implode("\n", $embargos));
  37          flock($f, LOCK_UN); // libère le verrou
  38          fclose($f);
  39      }
  40      // unlock
  41  }
  42  
  43  function removeEmbargo ($date) {
  44      if (file_exists(EMBARGOFILENAME)) {
  45          $embargos = file(EMBARGOFILENAME);
  46      }
  47  
  48      if (!is_null($key = array_search($date->getDate(), $embargos))) {
  49          unset($embargos[$key]);
  50      }
  51  
  52      // TODO : 
  53      // consolider le fichier, au moins gicler les lignes vides, au mieux gicler les trucs qui sont pas des dates  
  54  
  55      // lock 
  56      if ($f = fopen(EMBARGOFILENAME, 'w')) {
  57          // boucle d'attente
  58          while (!flock($f, LOCK_EX)); 
  59  
  60          fwrite($f, implode("\n", $embargos));
  61          flock($f, LOCK_UN); // libere le verrou
  62          fclose($f);
  63      }
  64      // unlock
  65  }
  66  
  67  function readNextEmbargo () {
  68      if (file_exists(EMBARGOFILENAME)) {
  69          // on accede pas au fichier plus de 4 fois par minutes
  70          if ((time() - fileatime(EMBARGOFILENAME)) > 15) {
  71              $embargos = file(EMBARGOFILENAME);
  72              if (count($embargos) == 0) { // plus rien a traiter
  73                  unlink(EMBARGOFILENAME);
  74              }
  75              else {
  76                  touch(EMBARGOFILENAME); // on a traiter le fichier donc on update sa date
  77              }
  78          }
  79      }
  80  
  81      if ($embargos) {
  82          asort($embargos);
  83          return new Date($embargos[0]);
  84      }
  85      else {
  86          return false;
  87      }
  88  }
  89  
  90  function clearCache ($fonds) {
  91      require_once dirname(__FILE__). "/../date.php";
  92  
  93      if (($nextEmbargo = readNextEmbargo()) != false) {
  94          $now = new Date();
  95          if (Date::compare($nextEmbargo->getDate(), $now->getDate()) <= 0) {
  96              include_once(dirname(__FILE__). '/../cacheHTML/inc_cacheHTML_factory.php');
  97  
  98              if (!file_exists(dirname(__FILE__). '/embargo.conf.php'))
  99                  die('embargo ... je ne trouve pas mon fichier de conf : embargo.conf.php');
 100  
 101              require(dirname(__FILE__). '/embargo.conf.php');
 102  
 103              while (list(, $fond) = each($fonds)) {
 104                  $cacheHTML = &recuperer_instance_cacheHTML($fond, null, null, null);
 105                  $cacheHTML->destroyAllCache();
 106              }
 107              removeEmbargo($nextEmbargo);
 108          }
 109      }
 110  }
 111  ?>