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', $day);
  54             }
  55
  56             if (count($filters) < 2) {
  57                 $filter = $filters[0];
  58             } else {
  59                 $filter = \Net_LDAP2_Filter::combine('or', $filters);
  60             }
  61             $options = array(
  62                 'scope'      => 'sub',
  63                 'attributes' => array(
  64                     'displayName', 'givenName', 'sn', 'cn', $dateAttribute
  65                 )
  66             );
  67
  68             $search = $ldap->search(null, $filter, $options);
  69             if (!$search instanceof \Net_LDAP2_Search) {
  70                 throw new \Exception(
  71                     'Error searching LDAP: ' . $search->getMessage()
  72                 );
  73             } else if ($search->count() == 0) {
  74                 continue;
  75             }
  76
  77             while ($entry = $search->shiftEntry()) {
  78                 $event = new Event(
  79                     $this->getNameFromEntry($entry),
  80                     $attributeTitle,
  81                     $entry->getValue($dateAttribute, 'single')
  82                 );
  83                 if ($event->isWithin($strDate, $nDaysPrevious, $nDaysNext)) {
  84                     $arEvents[] = $event;
  85                 }
  86             }
  87         }
  88
  89         return $arEvents;
  90     }
  91
  92     protected function getNameFromEntry(\Net_LDAP2_Entry $entry)
  93     {
  94         $arEntry = $entry->getValues();
  95         if (isset($arEntry['displayName'])) {
  96             return $arEntry['displayName'];
  97         } else if (isset($arEntry['sn']) && isset($arEntry['givenName'])) {
  98             return $arEntry['givenName'] . ' ' . $arEntry['sn'];
  99         } else if (isset($arEntry['cn'])) {
 100             return $arEntry['cn'];
 101         }
 102         return null;
 103     }
 104
 105     /**
 106      * @return array Values like "-01-24" ("-$month-$day")
 107      */
 108     protected function getDates($strDate, $nDaysPrevious, $nDaysNext)
 109     {
 110         $ts = strtotime($strDate) - 86400 * $nDaysPrevious;
 111         $numDays = $nDaysPrevious + $nDaysNext;
 112
 113         $arDays = array();
 114         do {
 115             $arDays[] = date('-m-d', $ts);
 116             $ts += 86400;
 117         } while (--$numDays >= 0);
 118         return $arDays;
 119     }
 120
 121 }
 122 ?>