include/validations/photos.inc.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2004 Polytechnique.org                              *
   4  *  http://opensource.polytechnique.org/                                   *
   5  *                                                                         *
   6  *  This program is free software; you can redistribute it and/or modify   *
   7  *  it under the terms of the GNU General Public License as published by   *
   8  *  the Free Software Foundation; either version 2 of the License, or      *
   9  *  (at your option) any later version.                                    *
  10  *                                                                         *
  11  *  This program is distributed in the hope that it will be useful,        *
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  14  *  GNU General Public License for more details.                           *
  15  *                                                                         *
  16  *  You should have received a copy of the GNU General Public License      *
  17  *  along with this program; if not, write to the Free Software            *
  18  *  Foundation, Inc.,                                                      *
  19  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
  20  ***************************************************************************/
  21
  22 // {{{ class PhotoReq
  23
  24 class PhotoReq extends Validate
  25 {
  26     // {{{ properties
  27
  28     var $mimetype;
  29     var $data;
  30     var $x;
  31     var $y;
  32
  33     var $unique = true;
  34
  35     var $rules = "Refuser les photos copyrightées, de mineurs, ou ayant
  36     un caractère pornographique, violent, etc... Si une photo est mal
  37     cadrée (20% de photo et 80% de blanc par exemple), si c'est un
  38     camarade antique, on lui arrange sinon on lui
  39     refuse en lui expliquant gentiment le problème. Idem si les dimensions de
  40     la photo sont archi trop grandes ou archi trop petites.";
  41
  42     // }}}
  43     // {{{ constructor
  44
  45     function PhotoReq($_uid, $_data, $_stamp=0)
  46     {
  47         global $globals, $page;
  48
  49         $this->Validate($_uid, true, 'photo', $_stamp);
  50
  51         // calcul de la taille de l'image
  52         require_once('xorg.varstream.inc.php');
  53         $GLOBALS['photoreq'] = $_data;
  54         $image_infos = getimagesize('var://photoreq');
  55         unset ($GLOBALS['photoreq']);
  56
  57         if (empty($image_infos)) {
  58             $page->trig("Image invalide");
  59             return ($this = null);
  60         }
  61         list($this->x, $this->y, $this->mimetype) = $image_infos;
  62
  63         switch ($this->mimetype) {
  64             case 1: $this->mimetype = "gif";    break;
  65             case 2: $this->mimetype = "jpeg";   break;
  66             case 3: $this->mimetype = "png";    break;
  67             default:
  68                 $page->trig("Type d'image invalide");
  69                 return ($this = null);
  70         }
  71
  72         if (strlen($_data) > SIZE_MAX)  {
  73             $img = imagecreatefromstring($_data);
  74             if (!$img) {
  75                 $page->trig("image trop grande et impossible à retailler automatiquement");
  76                 return ($this = null);
  77             }
  78
  79             $nx = $x = imagesx($img);
  80             $ny = $y = imagesy($img);
  81
  82             if ($nx > 240) { $ny = intval($ny*240/$nx); $nx = 240; }
  83             if ($ny > 300) { $ny = intval($nx*300/$nx); $ny = 300; }
  84             if ($nx < 160) { $ny = intval($ny*160/$nx); $nx = 160; }
  85
  86             $comp = '90';
  87             $file = tempnam('/tmp', 'photo');
  88
  89             while (strlen($_data) > SIZE_MAX) {
  90                 $img2  = imagecreatetruecolor($nx, $ny);
  91                 imagecopyresampled($img2, $img, 0, 0, 0, 0, $nx, $ny, $x, $y);
  92                 imagejpeg($img2, $file, $comp);
  93                 $_data = file_get_contents($file);
  94                 $this->mimetype = 'jpeg';
  95
  96                 $comp --;
  97             }
  98
  99             unlink($file);
 100         }
 101         $this->data = $_data;
 102     }
 103
 104     // }}}
 105     // {{{ function get_request()
 106
 107     function get_request($uid)
 108     {
 109         return parent::get_request($uid,'photo');
 110     }
 111
 112     // }}}
 113     // {{{ function formu()
 114
 115     function formu()
 116     { return 'include/form.valid.photos.tpl'; }
 117
 118     // }}}
 119     // {{{ function _mail_subj
 120
 121     function _mail_subj()
 122     {
 123         return "[Polytechnique.org/PHOTO] Changement de photo";
 124     }
 125
 126     // }}}
 127     // {{{ function _mail_body
 128
 129     function _mail_body($isok)
 130     {
 131         if ($isok) {
 132             return "  La demande de changement de photo que tu as demandée vient d'être effectuée.";
 133         } else {
 134             return "  La demande de changement de photo que tu avais faite a été refusée.";
 135         }
 136     }
 137
 138     // }}}
 139     // {{{ function commit()
 140
 141     function commit()
 142     {
 143         global $globals;
 144
 145         $globals->xdb->execute('REPLACE INTO  photo (uid, attachmime, attach, x, y)
 146                                       VALUES  ({?},{?},{?},{?},{?})',
 147                                       $this->uid, $this->mimetype, $this->data, $this->x, $this->y);
 148         require_once('notifs.inc.php');
 149         register_watch_op($this->uid,WATCH_FICHE);
 150         return true;
 151     }
 152
 153     // }}}
 154 }
 155
 156 // }}}
 157
 158 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker:
 159 ?>