src/bdrem/Source/Ldap.php

   1 <?php
   2 namespace bdrem;
   3
   4 /**
   5  * Fetch data from an LDAP server.
   6  * Works fine with evolutionPerson schema.
   7  */
   8 class Source_Ldap
   9 {
  10     protected $config;
  11
  12     /**
  13      * Create new ldap source
  14      *
  15      * @param array $config Array of Net_LDAP2 configuration parameters.
  16      *                      Some of those you might want to use:
  17      *                      - host   - LDAP server host name
  18      *                      - basedn - root DN that gets searched
  19      *                      - binddn - Username to authenticate with
  20      *                      - bindpw - Password for username
  21      */
  22     public function __construct($config)
  23     {
  24         $this->config = $config;
  25     }
  26
  27     /**
  28      * @param string $strDate Date the events shall be found for, YYYY-MM-DD
  29      */
  30     public function getEvents($strDate, $nDaysPrevious, $nDaysNext)
  31     {
  32         //Net_LDAP2 is not E_STRICT compatible
  33         error_reporting(error_reporting() & ~E_STRICT);
  34
  35         $ldap = \Net_LDAP2::connect($this->config);
  36         if (\PEAR::isError($ldap)) {
  37             throw new \Exception(
  38                 'Could not connect to LDAP-server: ' . $ldap->getMessage()
  39             );
  40         }
  41
  42         $dateAttributes = array(
  43             'birthDate'   => 'Birthday',
  44             'anniversary' => 'Anniversary',
  45         );
  46
  47         $arDays   = $this->getDates($strDate, $nDaysPrevious, $nDaysNext);
  48         $arEvents = array();
  49
  50         foreach ($dateAttributes as $dateAttribute => $attributeTitle) {
  51             $filters = array();
  52             foreach ($arDays as $day) {
  53                 $filters[] = \Net_LDAP2_Filter::create($dateAttribute, 'ends', $day);
  54             }
  55
  56             $filter  = \Net_LDAP2_Filter::combine('or', $filters);
  57             $options = array(
  58                 'scope'      => 'sub',
  59                 'attributes' => array(
  60                     'displayName', 'givenName', 'sn', 'cn', $dateAttribute
  61                 )
  62             );
  63
  64             $search = $ldap->search(null, $filter, $options);
  65             if (!$search instanceof \Net_LDAP2_Search) {
  66                 throw new \Exception(
  67                     'Error searching LDAP: ' . $search->getMessage()
  68                 );
  69             } else if ($search->count() == 0) {
  70                 continue;
  71             }
  72
  73             while ($entry = $search->shiftEntry()) {
  74                 $event = new Event(
  75                     $this->getNameFromEntry($entry),
  76                     $attributeTitle,
  77                     $entry->getValue($dateAttribute, 'single')
  78                 );
  79                 if ($event->isWithin($strDate, $nDaysPrevious, $nDaysNext)) {
  80                     $arEvents[] = $event;
  81                 }
  82             }
  83         }
  84
  85         return $arEvents;
  86     }
  87
  88     protected function getNameFromEntry(\Net_LDAP2_Entry $entry)
  89     {
  90         $arEntry = $entry->getValues();
  91         if (isset($arEntry['displayName'])) {
  92             return $arEntry['displayName'];
  93         } else if (isset($arEntry['sn']) && isset($arEntry['givenName'])) {
  94             return $arEntry['givenName'] . ' ' . $arEntry['sn'];
  95         } else if (isset($arEntry['cn'])) {
  96             return $arEntry['cn'];
  97         }
  98         return null;
  99     }
 100
 101     /**
 102      * @return array Values like "-01-24" ("-$month-$day")
 103      */
 104     protected function getDates($strDate, $nDaysPrevious, $nDaysNext)
 105     {
 106         $ts = strtotime($strDate) - 86400 * $nDaysPrevious;
 107         $numDays = $nDaysPrevious + $nDaysNext;
 108
 109         $arDays = array();
 110         do {
 111             $arDays[] = date('-m-d', $ts);
 112             $ts += 86400;
 113         } while (--$numDays >= 0);
 114         return $arDays;
 115     }
 116
 117 }
 118 ?>