PHPIDS
Current file: | /home/lstrojny/Projekte/php-ids/trunk/lib/IDS/Event.php
Legend: | executed not executed dead code

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IDS_Event |
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public function __construct($name, $value, array $filters) |
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public function getName() |
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public function getValue() |
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public function getImpact() |
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public function getTags() |
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public function getFilters() |
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public function count() |
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public function getIterator() |
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           1                 : <?php
           2                 :
           3                 : /**
           4                 :  * PHPIDS
           5                 :  *
           6                 :  * Requirements: PHP5, SimpleXML
           7                 :  *
           8                 :  * Copyright (c) 2008 PHPIDS group (http://php-ids.org)
           9                 :  *
          10                 :  * PHPIDS is free software; you can redistribute it and/or modify
          11                 :  * it under the terms of the GNU Lesser General Public License as published by
          12                 :  * the Free Software Foundation, version 3 of the License, or
          13                 :  * (at your option) any later version.
          14                 :  *
          15                 :  * PHPIDS is distributed in the hope that it will be useful,
          16                 :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
          17                 :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
          18                 :  * GNU Lesser General Public License for more details.
          19                 :  *
          20                 :  * You should have received a copy of the GNU Lesser General Public License
          21                 :  * along with PHPIDS. If not, see <http://www.gnu.org/licenses/>.
          22                 :  *
          23                 :  * PHP version 5.1.6+
          24                 :  *
          25                 :  * @category Security
          26                 :  * @package  PHPIDS
          27                 :  * @author   Mario Heiderich <mario.heiderich@gmail.com>
          28                 :  * @author   Christian Matthies <ch0012@gmail.com>
          29                 :  * @author   Lars Strojny <lars@strojny.net>
          30                 :  * @license  http://www.gnu.org/licenses/lgpl.html LGPL
          31                 :  * @link     http://php-ids.org/
          32                 :  */
          33                 :
          34                 : /**
          35                 :  * PHPIDS event object
          36                 :  *
          37                 :  * This class represents a certain event that occured while applying the filters
          38                 :  * to the supplied data. It aggregates a bunch of IDS_Filter implementations and
          39                 :  * is a assembled in IDS_Report.
          40                 :  *
          41                 :  * Note that this class implements both Countable and IteratorAggregate
          42                 :  *
          43                 :  * @category  Security
          44                 :  * @package   PHPIDS
          45                 :  * @author    Christian Matthies <ch0012@gmail.com>
          46                 :  * @author    Mario Heiderich <mario.heiderich@gmail.com>
          47                 :  * @author    Lars Strojny <lars@strojny.net>
          48                 :  * @copyright 2007 The PHPIDS Group
          49                 :  * @license   http://www.gnu.org/licenses/lgpl.html LGPL
          50                 :  * @version   Release: $Id:Event.php 517 2007-09-15 15:04:13Z mario $
          51                 :  * @link      http://php-ids.org/
          52                 :  */
          53                 : class IDS_Event implements Countable, IteratorAggregate
          54                 : {
          55                 :
          56                 :     /**
          57                 :      * Event name
          58                 :      *
          59                 :      * @var scalar
          60                 :      */
          61                 :     protected $name = null;
          62                 :
          63                 :     /**
          64                 :      * Value of the event
          65                 :      *
          66                 :      * @var scalar
          67                 :      */
          68                 :     protected $value = null;
          69                 :
          70                 :     /**
          71                 :      * List of filter objects
          72                 :      *
          73                 :      * Filter objects in this array are those that matched the events value
          74                 :      *
          75                 :      * @var array
          76                 :      */
          77                 :     protected $filters = array();
          78                 :
          79                 :     /**
          80                 :      * Calculated impact
          81                 :      *
          82                 :      * Total impact of the event
          83                 :      *
          84                 :      * @var integer
          85                 :      */
          86                 :     protected $impact = 0;
          87                 :
          88                 :     /**
          89                 :      * Affecte tags
          90                 :      *
          91                 :      * @var array
          92                 :      */
          93                 :     protected $tags = array();
          94                 :
          95                 :     /**
          96                 :      * Constructor
          97                 :      *
          98                 :      * Fills event properties
          99                 :      *
         100                 :      * @param scalar $name    the event name
         101                 :      * @param scalar $value   the event value
         102                 :      * @param array  $filters the corresponding filters
         103                 :      *
         104                 :      * @return void
         105                 :      */
         106                 :     public function __construct($name, $value, Array $filters)
         107                 :     {
         108              58 :         if (!is_scalar($name)) {
         109               1 :             throw new InvalidArgumentException(
         110               1 :                 'Expected $name to be a scalar,' . gettype($name) . ' given'
         111               1 :             );
         112                 :         }
         113                 :
         114              58 :         if (!is_scalar($value)) {
         115               1 :             throw new InvalidArgumentException('
         116               1 :                 Expected $value to be a scalar,' . gettype($value) . ' given'
         117               1 :             );
         118                 :         }
         119                 :
         120              58 :         $this->name  = $name;
         121              58 :         $this->value = $value;
         122                 :
         123              58 :         foreach ($filters as $filter) {
         124              58 :             if (!$filter instanceof IDS_Filter) {
         125               1 :                 throw new InvalidArgumentException(
         126                 :                     'Filter must be derived from IDS_Filter'
         127               1 :                 );
         128                 :             }
         129                 :
         130              58 :             $this->filters[] = $filter;
         131              58 :         }
         132              58 :     }
         133                 :
         134                 :     /**
         135                 :      * Returns event name
         136                 :      *
         137                 :      * The name of the event usually is the key of the variable that was
         138                 :      * considered to be malicious
         139                 :      *
         140                 :      * @return scalar
         141                 :      */
         142                 :     public function getName()
         143                 :     {
         144              53 :         return $this->name;
         145                 :     }
         146                 :
         147                 :     /**
         148                 :      * Returns event value
         149                 :      *
         150                 :      * @return scalar
         151                 :      */
         152                 :     public function getValue()
         153                 :     {
         154               2 :         return $this->value;
         155                 :     }
         156                 :
         157                 :     /**
         158                 :      * Returns calculated impact
         159                 :      *
         160                 :      * @return integer
         161                 :      */
         162                 :     public function getImpact()
         163                 :     {
         164              35 :         if (!$this->impact) {
         165              35 :             $this->impact = 0;
         166              35 :             foreach ($this->filters as $filter) {
         167              35 :                 $this->impact += $filter->getImpact();
         168              35 :             }
         169              35 :         }
         170                 :
         171              35 :         return $this->impact;
         172                 :     }
         173                 :
         174                 :     /**
         175                 :      * Returns affected tags
         176                 :      *
         177                 :      * @return array
         178                 :      */
         179                 :     public function getTags()
         180                 :     {
         181               4 :         $filters = $this->getFilters();
         182                 :
         183               4 :         foreach ($filters as $filter) {
         184               4 :             $this->tags = array_merge($this->tags,
         185               4 :                                       $filter->getTags());
         186               4 :         }
         187                 :
         188               4 :         $this->tags = array_values(array_unique($this->tags));
         189                 :
         190               4 :         return $this->tags;
         191                 :     }
         192                 :
         193                 :     /**
         194                 :      * Returns list of filter objects
         195                 :      *
         196                 :      * @return array
         197                 :      */
         198                 :     public function getFilters()
         199                 :     {
         200               9 :         return $this->filters;
         201                 :     }
         202                 :
         203                 :     /**
         204                 :      * Returns number of filters
         205                 :      *
         206                 :      * To implement interface Countable this returns the number of filters
         207                 :      * appended.
         208                 :      *
         209                 :      * @return integer
         210                 :      */
         211                 :     public function count()
         212                 :     {
         213               2 :         return count($this->getFilters());
         214                 :     }
         215                 :
         216                 :     /**
         217                 :      * IteratorAggregate iterator getter
         218                 :      *
         219                 :      * Returns an iterator to iterate over the appended filters.
         220                 :      *
         221                 :      * @return Iterator|IteratorAggregate
         222                 :      */
         223                 :     public function getIterator()
         224                 :     {
         225               3 :         return new ArrayObject($this->getFilters());
         226                 :     }
         227                 : }
         228                 :
         229                 : /*
         230                 :  * Local variables:
         231                 :  * tab-width: 4
         232                 :  * c-basic-offset: 4
         233                 :  * End:
         234                 :  */

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