/web/htdocs/www.euroroma.net/home/zenphoto/zp-core/zp-extensions/rating.php


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<?php
/**
 * Supports an rating system for images, albums, pages, and news articles
 * using the <i>Star Rating</i> Plugin by Fyneworks.com
 *
 * An option exists to allow viewers to recast their votes. If not set, a viewer may
 * vote only one time and may not change his mind.
 *
 * Customize the stars by placing a modified copy of <var>jquery.rating.css</var> in your theme folder.
 *
 * <b>Legal note:</b> Use the <i>Disguise IP</i> option if your country considers IP tracking a privacy violation.
 *
 * @author Stephen Billard (sbillard)and Malte Müller (acrylian)
 * @package plugins
 */
if (!defined('OFFSET_PATH')) {
    
define('OFFSET_PATH'3);
    require_once(
dirname(dirname(__FILE__)) . '/functions.php');

    if (isset(
$_GET['action']) && $_GET['action'] == 'clear_rating') {
        if (!
zp_loggedin(ADMIN_RIGHTS)) {
            
// prevent nefarious access to this page.
            
header('Location: ' FULLWEBPATH '/' ZENFOLDER '/admin.php?from=' currentRelativeURL());
            
exitZP();
        }

        require_once(
dirname(dirname(__FILE__)) . '/admin-functions.php');
        if (
session_id() == '') {
            
// force session cookie to be secure when in https
            
if (secureServer()) {
                
$CookieInfo session_get_cookie_params();
                
session_set_cookie_params($CookieInfo['lifetime'], $CookieInfo['path'], $CookieInfo['domain'], TRUE);
            }
            
session_start();
        }
        
XSRFdefender('clear_rating');
        
query('UPDATE ' prefix('images') . ' SET total_value=0, total_votes=0, rating=0, used_ips="" ');
        
query('UPDATE ' prefix('albums') . ' SET total_value=0, total_votes=0, rating=0, used_ips="" ');
        
query('UPDATE ' prefix('news') . ' SET total_value=0, total_votes=0, rating=0, used_ips="" ');
        
query('UPDATE ' prefix('pages') . ' SET total_value=0, total_votes=0, rating=0, used_ips="" ');
        
header('Location: ' FULLWEBPATH '/' ZENFOLDER '/admin.php?action=external&msg=' gettext('All ratings have been set to <em>unrated</em>.'));
        
exitZP();
    }
}

$plugin_is_filter ADMIN_PLUGIN THEME_PLUGIN;
$plugin_description gettext("Adds several theme functions to enable images, album, news, or pages to be rated by users. ");
$plugin_author "Stephen Billard (sbillard) and Malte Müller (acrylian)";

$option_interface 'jquery_rating';

zp_register_filter('edit_album_utilities''jquery_rating::optionVoteStatus');
zp_register_filter('save_album_utilities_data''jquery_rating::optionVoteStatusSave');
zp_register_filter('admin_utilities_buttons''jquery_rating::rating_purgebutton');

if (
getOption('rating_image_individual_control')) {
    
zp_register_filter('edit_image_utilities''jquery_rating::optionVoteStatus');
    
zp_register_filter('save_image_utilities_data''jquery_rating::optionVoteStatusSave');
}

// register the scripts needed
if (in_context(ZP_INDEX)) {
    
zp_register_filter('theme_head''jquery_rating::ratingJS');
}

/**
 * Option handler class
 *
 */
class jquery_rating {

    var 
$ratingstate;

    
/**
     * class instantiation function
     *
     * @return jquery_rating
     */
    
function __construct() {
        
setOptionDefault('rating_recast'1);
        
setOptionDefault('rating_stars_count'5);
        
setOptionDefault('rating_split_stars'2);
        
setOptionDefault('rating_status'3);
        
setOptionDefault('rating_image_individual_control'0);
        
$this->ratingstate = array(gettext('open')                                     => 3gettext('members &amp; guests')     => 2gettext('members only')                     => 1gettext('closed')                                 => 0);
    }

    
/**
     * Reports the supported options
     *
     * @return array
     */
    
function getOptionsSupported() {
        
$stars ceil(getOption('rating_stars_count'));
        return array(
gettext('Voting state')                             => array('key'             => 'rating_status''type'         => OPTION_TYPE_RADIO,
                                        
'buttons'     => $this->ratingstate,
                                        
'desc'         => gettext('<em>Enable</em> state of voting.')),
                        
gettext('Stars')                                         => array('key'     => 'rating_stars_count''type' => OPTION_TYPE_TEXTBOX,
                                        
'desc' => sprintf(ngettext('Rating will use %u star.''Rating will use %u stars.'$stars), $stars)),
                        
gettext('Split stars')                             => array('key'             => 'rating_split_stars''type'         => OPTION_TYPE_RADIO,
                                        
'buttons'     => array(gettext('full')     => 1gettext('half')     => 2gettext('third') => 3),
                                        
'desc'         => gettext('Show fractional stars based on rating. May cause performance problems for pages with large numbers of rating elements.')),
                        
gettext('Individual image control')     => array('key'     => 'rating_image_individual_control''type' => OPTION_TYPE_CHECKBOX,
                                        
'desc' => gettext('Enable to allow voting status control on individual images.')),
                        
gettext('Recast vote')                             => array('key'             => 'rating_recast''type'         => OPTION_TYPE_RADIO,
                                        
'buttons'     => array(gettext('No')                                     => 0gettext('Show rating')                 => 1gettext('Show previous vote')     => 2),
                                        
'desc'         => gettext('Allow users to change their vote. If Show previous vote is chosen, the stars will reflect the last vote of the viewer. Otherwise they will reflect the current rating.')),
                        
gettext('Disguise IP')                             => array('key'     => 'rating_hash_ip''type' => OPTION_TYPE_CHECKBOX,
                                        
'desc' => gettext('Causes the stored IP addressed to be hashed so as to avoid privacy tracking issues.'))
        );
    }

    function 
handleOption($option$currentValue) {

    }

    static function 
ratingJS() {
        
$ME substr(basename(__FILE__), 0, -4);
        
?>
        <script type="text/javascript" src="<?php echo WEBPATH '/' ZENFOLDER '/' PLUGIN_FOLDER '/' $ME?>/jquery.MetaData.js"></script>
        <script type="text/javascript" src="<?php echo WEBPATH '/' ZENFOLDER '/' PLUGIN_FOLDER '/' $ME?>/jquery.rating.js"></script>
        <?php
        $css 
getPlugin('rating/jquery.rating.css'truetrue);
        
?>
        <link rel="stylesheet" href="<?php echo pathurlencode($css); ?>" type="text/css" />
        <script type="text/javascript">
            // <!-- <![CDATA[
            $.fn.rating.options = {cancel: '<?php echo gettext('retract'); ?>'};
            // ]]> -->
        </script>
        <?php
    
}

    
/**
     * Option filter handler for images and albums
     *
     * @param string $prior HTML from prior filters
     * @param object $object object being rated
     * @param string $prefix indicator if admin is processing multiple objects
     * @return string Combined HTML
     */
    
static function optionVoteStatus($prior$object$prefix) {
        
$me = new jquery_rating();
        
$currentvalue $object->get('rating_status');
        
$output gettext('Vote Status:') . '<br />' "\n";
        foreach (
$me->ratingstate as $text => $value) {
            if (
$value == $currentvalue) {
                
$checked 'checked="checked"';
            } else {
                
$checked '';
            }
            
$output .= "<label class='checkboxlabel'>\n<input type='radio' name='rating_status" $prefix "' id='rating_status" $value "-" $prefix "' value='" . ($value 1) . "' " $checked "/> " $text "\n</label>" "\n";
        }
        
$output $prior "\n" $output '<br /clear="all">';
        return 
$output;
    }

    
/**
     * Option save handler for the filter
     *
     * @param object $object object being rated
     * @param string $prefix indicator if admin is processing multiple objects
     */
    
static function optionVoteStatusSave($object$prefix) {
        if (isset(
$_POST['rating_status' $prefix])) {
            
$object->set('rating_status'sanitize_numeric($_POST['rating_status' $prefix]) - 1);
        }
        return 
$object;
    }

    static function 
rating_purgebutton($buttons) {
        
$buttons[] = array(
                        
'category'         => gettext('Database'),
                        
'enable'             => true,
                        
'button_text'     => gettext('Reset all ratings'),
                        
'formname'         => 'clearrating_button',
                        
'action'             => PLUGIN_FOLDER '/rating.php?action=clear_rating',
                        
'icon'                 => 'images/reset.png',
                        
'title'                 => gettext('Sets all ratings to unrated.'),
                        
'alt'                     => '',
                        
'hidden'             => '<input type="hidden" name="action" value="clear_rating" />',
                        
'rights'             => ADMIN_RIGHTS,
                        
'XSRFTag'             => 'clear_rating'
        
);
        return 
$buttons;
    }

    
/**
     * Returns the last vote rating from an IP or false if
     * no vote on record
     *
     * @param string $ip
     * @param array $usedips
     * @param float $ratingAverage
     * @return float
     */
    
static function getRatingByIP($ip$usedips$ratingAverage) {
        global 
$_rating_current_IPlist;
        
$rating 0;
        if (empty(
$_rating_current_IPlist)) {
            if (!empty(
$usedips)) {
                
$_rating_current_IPlist unserialize($usedips);
                if (
array_key_exists($ip$_rating_current_IPlist)) {
                    return 
$_rating_current_IPlist[$ip];
                }
            }
        }
        return 
false;
    }

    
/**
     * returns the $object for the current loaded page
     *
     * @param object $object
     * @return object
     */
    
static function getCurrentPageObject() {
        global 
$_zp_gallery_page$_zp_current_album$_zp_current_image$_zp_current_zenpage_news$_zp_current_zenpage_page;
        switch (
$_zp_gallery_page) {
            case 
'album.php':
                return 
$_zp_current_album;
            case 
'image.php':
                return 
$_zp_current_image;
            case 
'news.php':
                return 
$_zp_current_zenpage_news;
            case 
'pages.php':
                return 
$_zp_current_zenpage_page;
            default:
                return 
NULL;
        }
    }

    
/**
     *
     * returns an "ID" tag for rating records
     */
    
static function id() {
        if (
getOption('rating_hash_ip')) {
            return 
sha1(getUserIP());
        } else {
            return 
getUserIP();
        }
    }

}

/**
 * Prints the rating star form and the current rating
 * Insert this function call in the page script where you
 * want the star ratings to appear.
 *
 * NOTE:
 * If $vote is false or the rating_recast option is false then
 * the stars shown will be the rating. Otherwise the stars will
 * show the value of the viewer's last vote.
 *
 * @param bool $vote set to false to disable voting
 * @param object $object optional object for the ratings target. If not set, the current page object is used
 * @param bool $text if false, no annotation text is displayed
 */
function printRating($vote 3$object NULL$text true) {
    global 
$_zp_gallery_page;
    if (
is_null($object)) {
        
$object jquery_rating::getCurrentPageObject();
    }
    if (!
is_object($object)) {
        return;
    }
    
$table $object->table;
    
$vote min($votegetOption('rating_status'), $object->get('rating_status'));
    switch (
$vote) {
        case 
1// members only
            
if (!zp_loggedin()) {
                
$vote 0;
            }
            break;
        case 
2// members & guests
            
switch ($_zp_gallery_page) {
                case 
'album.php':
                    
$album $object;
                    
$hint '';
                    if (!(
zp_loggedin() || checkAlbumPassword($album->name))) {
                        
$vote 0;
                    }
                    break;
                case 
'pages.php':
                case 
'news.php':
                    if (!
zp_loggedin()) { // no guest password
                        
$vote 0;
                    }
                    break;
                default:
                    
$album $object->getAlbum();
                    
$hint '';
                    if (!(
zp_loggedin() || checkAlbumPassword($album->name))) {
                        
$vote 0;
                    }
                    break;
            }
    }

    
$stars ceil(getOption('rating_stars_count'));
    
$recast getOption('rating_recast');
    
$split_stars max(1getOption('rating_split_stars'));
    
$rating $object->get('rating');
    
$votes $object->get('total_votes');
    
$id $object->getID();
    
$unique '_' $table '_' $id;

    
$ip jquery_rating::id();
    
$oldrating jquery_rating::getRatingByIP($ip$object->get('used_ips'), $object->get('rating'));
    if (
$vote && $recast == && $oldrating) {
        
$starselector round($oldrating $split_stars);
    } else {
        
$starselector round($rating $split_stars);
    }
    
$disable = !$vote || ($oldrating && !$recast);
    if (
$rating 0) {
        
$msg sprintf(ngettext('Rating %2$.1f (%1$u vote)''Rating %2$.1f (%1$u votes)'$votes), $votes$rating);
    } else {
        
$msg gettext('Not yet rated');
    }
    if (
$split_stars 1) {
        
$step $split_stars;
        
$split " {split:$step}";
        
$step $step;
    } else {
        
$split '';
        
$step 1;
    }
    
?>
    <form name="star_rating<?php echo $unique?>" id="star_rating<?php echo $unique?>" action="submit">
        <?php
        $j 
0;
        for (
$i $step$i <= $stars$i $i $step) {
            
$v ceil($i);
            
$j++;
            
?>
            <input type="radio" class="star<?php echo $split?>" name="star_rating-value<?php echo $unique?>" value="<?php echo $j?>" title="<?php printf(ngettext('%u star''%u stars'$v), $v); ?>" />
            <?php
        
}
        if (!
$disable) {
            
?>
            <span id="submit_button<?php echo $unique?>">
                <input type="button" class="button buttons" value="<?php echo gettext('Submit »'); ?>" onclick="cast<?php echo $unique?>();" />
            </span>
            <?php
        
}
        
?>
    </form>
    <span class="clearall" ></span>
    <span class="vote" id="vote<?php echo $unique?><?php if (!$text) echo 'style="display:none;"'?>>
    <?php echo $msg?>
    </span>
    <script type="text/javascript">
        // <!-- <![CDATA[
        var recast<?php echo $unique?> = <?php printf('%u'$recast && $oldrating); ?>;
        $(document).ready(function() {
            $('#star_rating<?php echo $unique?> :radio.star').rating('select', '<?php echo $starselector?>');
    <?php
    
if ($disable) {
        
?>
                $('#star_rating<?php echo $unique?> :radio.star').rating('disable');
        <?php
    
}
    
?>
        });

        function cast<?php echo $unique?>() {
            var dataString = $('#star_rating<?php echo $unique?>').serialize();
            if (dataString || recast<?php echo $unique?>) {
    <?php
    
if ($recast) {
        
?>
                    if (!dataString) {
                        dataString = 'star_rating-value<?php echo $unique?>=0';
                    }
        <?php
    
} else {
        
?>
                    $('#star_rating<?php echo $unique?> :radio.star').rating('disable');
                    $('#submit_button<?php echo $unique?>').hide();
        <?php
    
}
    
?>
                $.ajax({
                    type: 'POST',
                    cache: false,
                    url: '<?php echo WEBPATH '/' ZENFOLDER '/' PLUGIN_FOLDER '/' substr(basename(__FILE__), 0, -4); ?>/update.php',
                    data: dataString + '&id=<?php echo $id?>&table=<?php echo $table?>'
                });
                recast<?php echo $unique?> = <?php printf('%u'$recast); ?>;
                $('#vote<?php echo $unique?>').html('<?php echo gettext('Vote Submitted'); ?>');
            } else {
                $('#vote<?php echo $unique?>').html('<?php echo gettext('nothing to submit'); ?>');
            }
        }
        // ]]> -->
    </script>
    <?php
}

/**
 * Returns the current rating of an object
 *
 * @param object $object optional ratings target. If not supplied, the current script object is used
 * @return float
 */
function getRating($object NULL) {
    if (
is_null($object)) {
        
$object getCurrentPageObject();
        if (!
$object)
            return 
NULL;
    }
    return 
$object->get('rating');
}
?>