simplify auth mechanism a bit more

[platal.git] / include / validations / photos.inc.php

<?php
/***************************************************************************
 *  Copyright (C) 2003-2006 Polytechnique.org                              *
 *  http://opensource.polytechnique.org/                                   *
 *                                                                         *
 *  This program is free software; you can redistribute it and/or modify   *
 *  it under the terms of the GNU General Public License as published by   *
 *  the Free Software Foundation; either version 2 of the License, or      *
 *  (at your option) any later version.                                    *
 *                                                                         *
 *  This program is distributed in the hope that it will be useful,        *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
 *  GNU General Public License for more details.                           *
 *                                                                         *
 *  You should have received a copy of the GNU General Public License      *
 *  along with this program; if not, write to the Free Software            *
 *  Foundation, Inc.,                                                      *
 *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
 ***************************************************************************/

// {{{ class PhotoReq

class PhotoReq extends Validate
{
    // {{{ properties
    
    var $mimetype;
    var $data;
    var $x;
    var $y;

    var $unique = true;

    var $rules = "Refuser les photos copyrightées, de mineurs, ou ayant 
    un caractère pornographique, violent, etc... Si une photo est mal 
    cadrée (20% de photo et 80% de blanc par exemple), si c'est un 
    camarade antique, on lui arrange sinon on lui 
    refuse en lui expliquant gentiment le problème. Idem si les dimensions de 
    la photo sont archi trop grandes ou archi trop petites.";

    // }}}
    // {{{ constructor
   
    function PhotoReq($_uid, $_data, $_stamp=0)
    {
        global $page;

        $this->Validate($_uid, true, 'photo', $_stamp);
        
        // calcul de la taille de l'image
        require_once('xorg.varstream.inc.php');
        $GLOBALS['photoreq'] = $_data;
        $image_infos = getimagesize('var://photoreq');
        unset ($GLOBALS['photoreq']);

        if (empty($image_infos)) {
            $page->trig("Image invalide");
            return ($this = null);
        }
        list($this->x, $this->y, $this->mimetype) = $image_infos;

        switch ($this->mimetype) {
            case 1: $this->mimetype = "gif";    break;
            case 2: $this->mimetype = "jpeg";   break;
            case 3: $this->mimetype = "png";    break;
            default:
                $page->trig("Type d'image invalide");
                return ($this = null);
        }

        if (strlen($_data) > SIZE_MAX)  {
            $img = imagecreatefromstring($_data);
            if (!$img) {
                $page->trig("image trop grande et impossible à retailler automatiquement");
                return ($this = null);
            }

            $nx = $x = imagesx($img);
            $ny = $y = imagesy($img);

            if ($nx > 240) { $ny = intval($ny*240/$nx); $nx = 240; }
            if ($ny > 300) { $ny = intval($nx*300/$nx); $ny = 300; }
            if ($nx < 160) { $ny = intval($ny*160/$nx); $nx = 160; }

            $comp = '90';
            $file = tempnam('/tmp', 'photo');

            while (strlen($_data) > SIZE_MAX) {
                $img2  = imagecreatetruecolor($nx, $ny);
                imagecopyresampled($img2, $img, 0, 0, 0, 0, $nx, $ny, $x, $y);
                imagejpeg($img2, $file, $comp);
                $_data = file_get_contents($file);
                $this->mimetype = 'jpeg';

                $comp --;
            }

            unlink($file);
        }
        $this->data = $_data;
    }
    
    // }}}
    // {{{ function get_request()

    function get_request($uid)
    {
        return parent::get_request($uid,'photo');
    }

    // }}}
    // {{{ function formu()

    function formu()
    { return 'include/form.valid.photos.tpl'; }

    // }}}
    // {{{ function _mail_subj

    function _mail_subj()
    {
        return "[Polytechnique.org/PHOTO] Changement de photo";
    }

    // }}}
    // {{{ function _mail_body
    
    function _mail_body($isok)
    {
        if ($isok) {
            return "Le changement de photo que tu as demandé vient d'être effectué.";
        } else {
            return "La demande de changement de photo que tu avais faite a été refusée.";
        }
    }

    // }}}
    // {{{ function commit()
    
    function commit()
    {
        XDB::execute('REPLACE INTO  photo (uid, attachmime, attach, x, y)
                                      VALUES  ({?},{?},{?},{?},{?})',
                                      $this->uid, $this->mimetype, $this->data, $this->x, $this->y);
	require_once('notifs.inc.php');
	register_watch_op($this->uid,WATCH_FICHE);
        return true;
    }

    // }}}
}

// }}}

// vim:set et sw=4 sts=4 sws=4 foldmethod=marker:
?>