public.php

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<?php
/*
 * public.php
 * 
 * Copyright 2013 Johannes <jojo@jojo-42>
 * 
 * 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., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 * 
 * 
 */
function display_poll_form($show_poll,$preview=false){
        if($show_poll->anonymous == true){
                print_info("Diese Umfrage wird anonym ausgewertet! <br/> Es werden also keine Benutzerdaten gespeichert, die auf die Herkunft (username, voller Name) hinweisen könnten.");
        }
        echo '<form method="POST" action="">';
        $show_poll->display();
        echo "<p style='margin-top:2em;'>Die Felder, die mit <span class='required_asterisk'>*</span> markiert sind, sind Plichtfelder.</p>";
        if($preview==false){
                echo '<br/><input type="submit" value="Senden" name="poll_submit"/>';
        }
        echo "</form>"; 
}



// SESSION
require_once("inc/user.class.php");
if( !(isset($_SESSION)) ){
        session_start();
}

session_regenerate_id();


require_once("config.php");
require_once("inc/tools.php");

require_once("inc/db.class.php");
require_once("inc/config.class.php");
require_once("inc/poll.class.php");
require_once("inc/html.class.php");
require_once("inc/messages.class.php");
require_once("inc/chart.class.php");
$db= new db( DB_USER, DB_PASS, DB_DATABASE, DB_HOST );
$config = new config($db);
$config->load();

$now = time();

// LOAD POLLS 
$ps = $db->get_all_polls_array();
$polls = array();
foreach($ps as $pps){
        // check if public poll
        if( $pps["anonymous"] == "2"){
                $p = new poll();
                $p->load_from_id($db,$pps["ID"]);
                // check timeout and Status 
                if(     ($p->status == STATUS_NORMAL) AND  
                                ($p->get_timeout_timestamp() >= $now) ){
                        $polls[$p->ID] = $p;    
                }       
                unset($p); 
        }
}

// default page --> list public polls
$page = "index"; 


if( (isset($_GET["h"])) AND (strlen($_GET["h"]) == 32)  ){
        // if poll is public
        foreach( $polls as &$p ){
                if( $p->hashID === $_GET["h"] ){
                        $poll = $p;
                        $page = "show poll";
                }
        } // end foreach poll
} // end if option "h" 


// submit form 
if(  (isset($_POST["poll_submit"])) AND (isset($poll))  ){
        $poll->load_from_id($db,$poll->ID); // get old results
        $page = "handle poll";
}

// load counters for widgets
if( ($page == "show poll") OR ($page == "handle poll") ){
        $poll->load_widget_result_count($db);
}


// BEGIN HTML
HTML::doctype();
// include polls theme 
if( ($page == "show poll") OR ($page == "handle poll")  ){
        if( $poll->theme !== "" ){
                HTML::head('<link href="'.APP_ROOT.'/CSS/Themes/'.$poll->theme.'" rel="stylesheet" type="text/css">' );
        }else{
                HTML::head();
        }
}else{
        HTML::head();
}
HTML::menu();


if ($page == "index"){
                
        
// SHOW POLL FORM
}else if ($page == "show poll"){
        // fancy title
        echo "<p id='poll_title'> <span id='umfrage'>Umfrage</span> &laquo;<i>{$poll->name}</i>&raquo;</p>";
        // display ... timeout and status check done by loading complete list above
        display_poll_form($poll);

// HANDLE POLL INPUT
}else if($page == "handle poll"){

        $errors = $poll->handle_inpt(); // returns array of errors
        
        // if there is an input error reshow the form
        if(sizeof($errors) != 0){
                foreach($errors as $e){
                        print_err($e);
                }
                // fancy title
                echo "<p id='poll_title'> <span id='umfrage'>Umfrage</span> &laquo;<i>{$poll->name}</i>&raquo;</p>";
                display_poll_form($poll);
                
        }else{
        // insert in DB if there is no error

                $ret = $db->insert_poll_result($poll); 
                        
                $email_stack = array("pollID" => $poll->ID , "type" => $ret["action"] , "fullName" => "Unbekannt", "uname" => "" , "timestamp" => "NOW()" );
                if ( $ret["value"] !== false ){
                        $notif_events = $poll->get_config("email_notif");
                        if( in_array($ret["action"],$notif_events)  ){
                                $db->email_stack_add($email_stack);
                        }
                // failure
                }else{
                        $messages->add_message( new errorMessage("Fehler in der Datenbank! Deine Daten wurden <b>nicht</b> gespeichert") );                                     
                }
        
                echo "<a href='public.php'>Zurück</a>";
                
                echo "<p>Vielen Dank, dass du an dieser Umfrage Teilgenommen hast.</p>";
                // charts
                $aktuelle_statistik = false;
                foreach( $poll->widget_list as $widget ){
                        if( $widget->get_config("showCharts") ){
                                $aktuelle_statistik = true;
                                break;
                        }
                }
                if( $aktuelle_statistik ){              
                        echo "<h2>Aktuelle Statistik</h2>";
                        echo '<script src="JS/Chart.js"></script>';
                        $poll->load_widget_result_count($db);
                        foreach( $poll->widget_list as $widget ){
                                $c = $widget->get_config("showCharts");
                                if( $c === true ){
                                        if( $widget instanceof chartable_widget ){
                                                $widget->chart_display();
                                        }
                                }
                        }
                } // end if show aktuelle Statistik
                        // SHOW RESULTS !!! 
                        
                        
        } // end if errors 
}


HTML::foot();   

// send notification emails in a new background process
exec("cd backend && php email-bg.php");

?>