<?php # $Id: serendipity_event_imageselectorplus.php,v 1.34 2008/08/22 09:41:15 garvinhicking Exp $


if (IN_serendipity !== true) {
    die ("Don't hack!");
}

// Probe for a language include with constants. Still include defines later on, if some constants were missing
$probelang = dirname(__FILE__) . '/' . $serendipity['charset'] . 'lang_' . $serendipity['lang'] . '.inc.php';
if (file_exists($probelang)) {
    include $probelang;
}

include dirname(__FILE__) . '/lang_en.inc.php';

if (!function_exists('ifRemember')) {
    // dummy stub function for older 0.9 versions

    function ifRemember($a = null, $b = null, $c = null, $d = null) {
        return true;
    }
}

class serendipity_event_imageselectorplus extends serendipity_event
{
    var $title = PLUGIN_EVENT_IMAGESELECTORPLUS_NAME;
    var $gotMilk = false;
    var $cache = array();

    function introspect(&$propbag)
    {
        global $serendipity;

        $propbag->add('name',          PLUGIN_EVENT_IMAGESELECTORPLUS_NAME);
        $propbag->add('description',   PLUGIN_EVENT_IMAGESELECTORPLUS_DESC);
        $propbag->add('stackable',     false);
        $propbag->add('author',        'Garvin Hicking, Vladimir Ajgl, Adam Charnock');
        $propbag->add('version',       '0.27beta');
        $propbag->add('requirements',  array(
            'serendipity' => '0.9',
            'smarty'      => '2.6.7',
            'php'         => '4.1.0'
        ));
        $propbag->add('groups', array('IMAGES','MARKUP'));

        $propbag->add('event_hooks',   array(
            'entries_header' => true,
            'entry_display' => true,
            'backend_entry_presave' => true,
            'backend_publish' => true,
            'backend_save' => true,
            'frontend_image_add_unknown' => true,
            'frontend_image_add_filenameonly' => true,
            'frontend_image_selector_submit' => true,
            'frontend_image_selector_more' => true,
            'frontend_image_selector_imagecomment' => true,
            'frontend_image_selector_imagelink' => true,
            'frontend_image_selector_imagealign' => true,
            'frontend_image_selector_imagesize' => true,
            'frontend_image_selector_hiddenfields' => true,
            'frontend_image_selector' => true,
            'backend_image_add' => true,
            'backend_image_addHotlink' => true,
            'backend_image_addform' => true,
            'frontend_display' => true
        ));

        $this->markup_elements = array(
            array(
              'name'     => 'ENTRY_BODY',
              'element'  => 'body',
            ),
            array(
              'name'     => 'EXTENDED_BODY',
              'element'  => 'extended',
            )
        );

        $conf_array = array('thumb_max_width', 'thumb_max_height','unzipping', 'autoresize', 'force_jhead');

        foreach($this->markup_elements as $element) {
            $conf_array[] = $element['name'];
        }
        $propbag->add('configuration', $conf_array);
    }

    function introspect_config_item($name, &$propbag) {
        global $serendipity;

        switch ($name) {
            case 'force_jhead':
                $propbag->add('type', 'boolean');
                $propbag->add('name', PLUGIN_EVENT_IMAGESELECTORPLUS_JHEAD);
                $propbag->add('description', PLUGIN_EVENT_IMAGESELECTORPLUS_JHEAD_DESC);
                $propbag->add('default', 'false');
                break; 

            case 'thumb_max_width':
                $propbag->add('type', 'string');
                $propbag->add('name', PLUGIN_EVENT_IMAGESELECTORPLUS_MAXWIDTH);
                $propbag->add('description', '');
                $propbag->add('default', '0');
                break;

            case 'thumb_max_height':
                $propbag->add('type', 'string');
                $propbag->add('name', PLUGIN_EVENT_IMAGESELECTORPLUS_MAXHEIGHT);
                $propbag->add('description', '');
                $propbag->add('default', '0');
                break;
            
            case 'unzipping':
                if (class_exists('ZipArchive')) {
                    $propbag->add('type', 'boolean');
                    $propbag->add('name', PLUGIN_EVENT_IMAGESELECTORPLUS_UNZIP_FILES);
                    $propbag->add('description', PLUGIN_EVENT_IMAGESELECTORPLUS_UNZIP_FILES_BLABLAH);
                    $propbag->add('default', 'true');
                }
                break;

            case 'autoresize':
                $propbag->add('type', 'boolean');
                $propbag->add('name', PLUGIN_EVENT_IMAGESELECTORPLUS_AUTORESIZE);
                $propbag->add('description', PLUGIN_EVENT_IMAGESELECTORPLUS_AUTORESIZE_DESC);
                $propbag->add('default', 'false');
                break;

            default:
                if (class_exists('SimpleXMLElement')) {
                    $propbag->add('type',        'boolean');
                    $propbag->add('name',        constant($name));
                    $propbag->add('description', sprintf(APPLY_MARKUP_TO," - ".constant($name)));
                    $propbag->add('default', 'true');
                }
                break;
        }

        return true;
    }

    // to recash all entries after installing the plugin
    function install() {
        serendipity_plugin_api::hook_event('backend_cache_entries', $this->title);
    }

    // to recash all entries after uninstalling the plugin
    function uninstall() {
        serendipity_plugin_api::hook_event('backend_cache_purge', $this->title);
        serendipity_plugin_api::hook_event('backend_cache_entries', $this->title);
    }

    function generate_content(&$title) {
        $title = $this->title;
    }

    function httpize($path) {
        global $serendipity;

        if (preg_match('@' . $serendipity['uploadPath'] . '(.+)$@imsU', $path, $match)) {
            return $serendipity['serendipityHTTPPath'] . $serendipity['uploadHTTPPath'] . $match[1];
        }

        return preg_replace('@^' . preg_quote($_SERVER['DOCUMENT_ROOT']) . '(.*)$@imsU', '\1', $path);
    }

    function selected() {
        global $serendipity;

        if ($serendipity['GET']['subpage'] == 's9yisp') {
            return true;
        }

        return false;
    }

    function resizeThumb($sizes, $target) {
        global $serendipity;

        // Thumbsize: 75
        // A: 100x300
        // B: 300x100

        // s9y A: 25x75
        // s9y B: 75x25

        // Max-Height: 0
        // Max-Width : 75
        // s9y A:
        // s9y B:

        // Max-Height: 0
        // Max-Height: 75
        // s9y A: 25x75
        // s9y B: 225x75

        $fdim     = @serendipity_getimagesize($target, '', '');

        if (!isset($serendipity['thumbConstraint'])) {
        // Original code, for older versions of s9y
        $s9ysizes = serendipity_calculate_aspect_size($fdim[0], $fdim[1], $serendipity['thumbSize']);
        if ($fdim[0] >= $fdim[1]) {
            $orientation = 'Landscape';
        } else {
            $orientation = 'Portrait';
        }

        if ($sizes['width'] == 0) {
            if ($orientation == 'Landscape') {
                $_newsizes = serendipity_calculate_aspect_size($fdim[0], $fdim[1], null, $sizes['height']);
            } else {
                $_newsizes = serendipity_calculate_aspect_size($fdim[0], $fdim[1], $sizes['height'], null);
            }
            $newsizes  = array('width' => $_newsizes[0], 'height' => $_newsizes[1]);
        } elseif ($sizes['height'] == 0) {
            if ($orientation == 'Landscape') {
                $_newsizes = serendipity_calculate_aspect_size($fdim[0], $fdim[1], $sizes['width'], null);
            } else {
                $_newsizes = serendipity_calculate_aspect_size($fdim[0], $fdim[1], null, $sizes['width']);
            }
            $newsizes  = array('width' => $_newsizes[0], 'height' => $_newsizes[1]);
        } else {
            $newsizes = $sizes;
            array(
                0 => $sizes['width'],
                1 => $sizes['height']
            );
        }
        } else {
            // Newer s9y version that understands how to constrain images properly
            $s9ysizes = serendipity_calculate_aspect_size($fdim[0], $fdim[1], $serendipity['thumbSize'], $serendipity['thumbConstraint']);
            $orientation = 'size';
            if ($sizes['width'] == 0) {
                $_newsizes = serendipity_calculate_aspect_size($fdim[0], $fdim[1], $sizes['height'], 'height');
            } elseif ($sizes['height'] == 0) {
                $_newsizes = serendipity_calculate_aspect_size($fdim[0], $fdim[1], $sizes['width'], 'width');
            } else {
                $_newsizes = $sizes;
            }
            $newsizes  = array('width' => $_newsizes[0], 'height' => $_newsizes[1]);
        }

        echo "Resizing thumb of " . $orientation . " " . $fdim[0] . "x" . $fdim[1] . " to " . $_newsizes[0] . "x" . $_newsizes[1] . " instead of " . $s9ysizes[0] . "x" . $s9ysizes[1] . "...<br />\n";
        $dirname = dirname($target) . '/';
        $dirname = str_replace($serendipity['serendipityPath'] . $serendipity['uploadPath'], '', $dirname);
        serendipity_makeThumbnail(basename($target), $dirname, $newsizes, $serendipity['thumbSuffix']);
    }

    function event_hook($event, &$bag, &$eventData) {
        global $serendipity;

        $hooks = &$bag->get('event_hooks');

        if (isset($hooks[$event])) {
            switch($event) {
                case 'backend_image_addform':
                    if (class_exists('ZipArchive')) {
                        $checkedY = "";
                        $checkedN = "";
                        $this->get_config('unzipping') ? $checkedY = "checked='checked'" : $checkedN = "checked='checked'";
?>
            <p>
                <strong><?php echo PLUGIN_EVENT_IMAGESELECTORPLUS_UNZIP_FILES;?></strong><br />
                <?php echo PLUGIN_EVENT_IMAGESELECTORPLUS_UNZIP_FILES_DESC;?>
                <p>
                    <input type="radio" class="input_radio" id="unzip_yes" name="serendipity[unzip_archives]" value="<?php echo YES;?>"<?php echo $checkedY;?>><label for="unzip_yes"><?php echo YES;?></label>
                    <input type="radio" class="input_radio" id="unzip_no" name="serendipity[unzip_archives]" value="<?php echo NO;?>"<?php echo $checkedN;?>><label for="unzip_no"><?php echo NO;?></label>
                </p>
            </p>
<?php
                    }
?>                      
            <br />
            <strong><?php echo PLUGIN_EVENT_IMAGESELECTORPLUS_QUICKBLOG; ?>:</strong><br />
            <em><?php echo PLUGIN_EVENT_IMAGESELECTORPLUS_QUICKBLOG_DESC; ?></em>
            <table id="quickblog_table" style="width: 50%">
                <tr>
                    <td nowrap='nowrap'><?php echo TITLE; ?></td>
                    <td><input class="input_textbox" name="serendipity[quickblog][title]" type="text" style="width: 90%" /></td>
                </tr>

                <tr>
                    <td nowrap='nowrap'><?php echo ENTRY_BODY; ?></td>
                    <td><textarea name="serendipity[quickblog][body]" style="width: 90%; height: 200px"></textarea></td>
                </tr>

                <tr>
                    <td nowrap='nowrap'><?php echo CATEGORY; ?></td>
                    <td><select name="serendipity[quickblog][category]">
                    <?php
                    if (is_array($cats = serendipity_fetchCategories())) {
                        $cats = serendipity_walkRecursive($cats, 'categoryid', 'parentid', VIEWMODE_THREADED);
                        foreach ($cats as $cat) {
                            echo '<option value="'. $cat['categoryid'] .'"'. (in_array($cat['categoryid'], $selected) ? ' selected="selected"' : '') .'>'. str_repeat('&nbsp;', $cat['depth']) . $cat['category_name'] .'</option>' . "\n";
                        }
                    }
                    ?>
                    </select>
                    </td>
                </tr>

                <tr>
                    <td nowrap='nowrap'><?php echo IMAGE_SIZE; ?></td>
                    <td><input class="input_textbox" name="serendipity[quickblog][size]" value="640" type="text" style="width: 50px" /></td>
                </tr>

                <tr>
                    <td align="center" colspan="2"><br /></td>
                </tr>
            </table>
<?php
                    break;

                case 'backend_image_add':
                    global $new_media;
                    // if file is zip archive and unzipping enabled
                    // unzip file and add all images to database
                    
                    // retrieve file type
                    $target_zip = $eventData;
                    preg_match('@(^.*/)+(.*)\.+(\w*)@',$target_zip,$matches);
                    $target_dir = $matches[1];
                    $basename   = $matches[2];
                    $extension  = $matches[3];
                    $authorid   = (isset($serendipity['POST']['all_authors']) && $serendipity['POST']['all_authors'] == 'true') ? '0' : $serendipity['authorid'];
                    
                    // only if unzipping function exists, we have archive file and unzipping set to yes
                    if ((class_exists('ZipArchive')) && ($extension == 'zip') && ($serendipity['POST']['unzip_archives'] == YES)) {
                        // now unzip
                        $zip = new ZipArchive;
                        $res = $zip->open($target_zip);
                        if ($res === TRUE) {
                            $files_to_unzip   = array();
                            $extracted_images = array();
                            
                            for($i=0; $i < $zip->numFiles; $i++) {
                                $file_to_extract = $zip->getNameIndex($i);
                                if (file_exists($target_dir.$file_to_extract)) {
                                    echo '(' . $file_to_extract . ') ' . ERROR_FILE_EXISTS_ALREADY . '<br />';
                                } else {
                                    $files_to_unzip[] = $file_to_extract;
                                    $extracted_images[] = $target_dir.$file_to_extract;
                                }
                            }
                            
                            
                            $zip->extractTo($target_dir,$files_to_unzip);
                            $zip->close();
                            echo PLUGIN_EVENT_IMAGESELECTORPLUS_UNZIP_OK;
                        } else {
                            echo PLUGIN_EVENT_IMAGESELECTORPLUS_UNZIP_FAILED;
                        }                        
                        

                        // now proceed all unzipped images
                        foreach ($extracted_images as $target) {
                            preg_match('@(^.*/)+(.*)\.+(\w*)@',$target,$matches);
                            $real_dir   = $matches[1];
                            $basename   = $matches[2];
                            $extension  = $matches[3];
                            $tfile      = $basename.".".$extension;
                            preg_match('@'.$serendipity['uploadPath'].'(.*/)@',$target,$matches);
                            $image_directory = $matches[1];  
                            
                            // make thumbnails for new images        
                            $thumbs = array(array(
                                'thumbSize' => $serendipity['thumbSize'],
                                'thumb'     => $serendipity['thumbSuffix']
                            ));
                            serendipity_plugin_api::hook_event('backend_media_makethumb', $thumbs);
                       
                            foreach($thumbs as $thumb) {
                                // Create thumbnail
                                if ( $created_thumbnail = serendipity_makeThumbnail($tfile, $image_directory, $thumb['thumbSize'], $thumb['thumb']) ) {
                                    echo PLUGIN_EVENT_IMAGESELECTORPLUS_UNZIP_IMAGE_FROM_ARCHIVE . " - " . THUMB_CREATED_DONE . '<br />';
                                } 
                            }
        
                            // Insert into database
                            $image_id = serendipity_insertImageInDatabase($tfile, $image_directory, $authorid, null, $realname);
                            echo PLUGIN_EVENT_IMAGESELECTORPLUS_UNZIP_IMAGE_FROM_ARCHIVE." ($tfile) ".PLUGIN_EVENT_IMAGESELECTORPLUS_UNZIP_ADD_TO_DB."<br />";
                            $new_media[] = array(
                                'image_id'          => $image_id,
                                'target'            => $target,
                                'created_thumbnail' => $created_thumbnail
                            );
                        }
                    }

                case 'backend_image_addHotlink':
                    // Re-Scale thumbnails?
                    $max_scale = array(
                        'width'  => (int)$this->get_config('thumb_max_width'),
                        'height' => (int)$this->get_config('thumb_max_height')
                    );

                    if ($max_scale['width'] > 0 || $max_scale['height'] > 0) {
                        $this->resizeThumb($max_scale, $eventData);
                    }

                    if (empty($serendipity['POST']['quickblog']['title'])) {
                        break;
                    }
                    $file      = basename($eventData);
                    $directory = str_replace($serendipity['serendipityPath'] . $serendipity['uploadPath'], '', dirname($eventData) . '/');
                    $size      = (int)$serendipity['POST']['quickblog']['size'];
                    $oldSuffix = $serendipity['thumbSuffix'];
                    $serendipity['thumbSuffix'] = 'quickblog';
                    serendipity_makeThumbnail($file, $directory, $size);
                    $serendipity['thumbSuffix'] = $oldSuffix;

                    //New draft post
                    $entry             = array();
                    $entry['isdraft']  = 'false';
                    $entry['title']    = $serendipity['POST']['quickblog']['title'];
                    $entry['body']     = '<!--quickblog:' . $eventData .  '-->' . $serendipity['POST']['quickblog']['body'];
                    $entry['authorid'] = $serendipity['authorid'];
                    $entry['exflag']   = false;
                    $entry['categories'][0] = $serendipity['POST']['quickblog']['category'];
                    $entry['allow_comments']    = 'true';
                    $entry['moderate_comments'] = 'false';
                    $serendipity['POST']['properties']['fake'] = 'fake';
                    $id = serendipity_updertEntry($entry);

                    break;

                case 'frontend_display':
                    
                    // auto resizing images based on width and/or height attributes in img tag
                    if (serendipity_db_bool($this->get_config('autoresize'))) {
                        if (!empty($eventData['body'])) {
                            $eventData['body'] = $this->substituteImages($eventData['body']);
                        }

                        if (!empty($eventData['extended'])) {
                            $eventData['extended'] = $this->substituteImages($eventData['extended']);
                        }
                    }
                    
                    if (empty($eventData['body'])) {
                        return;
                    }

                    // displaying quickbox posts
                    if (is_object($serendipity['smarty']) && preg_match('@<!--quickblog:(.+)-->@imsU', $eventData['body'], $filematch)) {
                        $eventData['body'] = $this->parse_quickblog_post($filematch[1], $eventData['body']);
                    }
                    
                    // displaying galleries introduced by markup
                    foreach ($this->markup_elements as $temp) {
                        if (serendipity_db_bool($this->get_config($temp['name'], true)) && isset($eventData[$temp['element']]) &&
                            !$eventData['properties']['ep_disable_markup_' . $this->instance] &&
                            !isset($serendipity['POST']['properties']['disable_markup_' . $this->instance])) {
                            $element = $temp['element'];
                            $eventData[$element] = $this->media_insert($eventData[$element]);
                        } else {
                            $eventData[$element] .= '(MEDIA INSERT IGNORED!)';
                        }
                    }
                    
                    return true;

                    break;

                case 'backend_entry_presave':
                    if (is_numeric($eventData['id'])) {
                        $eventData['body']     = str_replace('{{s9yisp_entryid}}', $eventData['id'], $eventData['body']);
                        $eventData['extended'] = str_replace('{{s9yisp_entryid}}', $eventData['id'], $eventData['extended']);
                        $this->gotMilk = true;
                    } else {
                        $this->cache['body']     = $eventData['body'];
                        $this->cache['extended'] = $eventData['extended'];
                    }
                    break;

                case 'backend_publish':
                case 'backend_save':
                    if ($this->gotMilk === false) {
                        $old = md5($this->cache['body']) . md5($this->cache['extended']);
                        $this->cache['body']     = str_replace('{{s9yisp_entryid}}', $eventData['id'], $this->cache['body']);
                        $this->cache['extended'] = str_replace('{{s9yisp_entryid}}', $eventData['id'], $this->cache['extended']);
                        $new = md5($this->cache['body']) . md5($this->cache['extended']);

                        if ($old != $new) {
                            serendipity_db_query("UPDATE {$serendipity['dbPrefix']}entries
                                                     SET body     = '" . serendipity_db_escape_string($this->cache['body']) . "',
                                                         extended = '" . serendipity_db_escape_string($this->cache['extended']) . "'
                                                   WHERE       id = " . (int)$eventData['id']);
                        }
                    }
                    break;

                case 'entry_display':
                    if ($this->selected()) {
                        if (is_array($eventData)) {
                            $eventData['clean_page'] = true; // This is important to not display an entry list!
                        } else {
                            $eventData = array('clean_page' => true);
                        }
                   }
                    break;

                case 'entries_header':
                    if (!$this->selected()) {
                        return true;
                    }

                    if (!headers_sent()) {
                        header('HTTP/1.0 200');
                        header('Status: 200 OK');
                    }
                    $entry = serendipity_fetchEntry('id', $serendipity['GET']['id']);
                    $imageid = $serendipity['GET']['image'];
                    $imgsrc = '';
                    if (preg_match('@<a title="([^"]+)" id="s9yisp' . $imageid . '"></a>@imsU', $entry['body'], $imgmatch)) {
                        $imgsrc = $imgmatch[1];
                    } elseif (preg_match('@<a title="([^"]+)" id="s9yisp' . $imageid . '"></a>@imsU', $entry['extended'], $imgmatch)) {
                        $imgsrc = $imgmatch[1];
                    } else {
                        return;
                    }

                    $link = '<a href="' . serendipity_archiveURL($serendipity['GET']['id'], $entry['title'], 'baseURL', true, array('timestamp' => $entry['timestamp'])) . '#s9yisp' . $imageid . '">';

                    echo '<div class="serendipity_Entry_Date">
                             <h3 class="serendipity_date">' . serendipity_formatTime(DATE_FORMAT_ENTRY, $entry['timestamp']) . '</h3>';

                    echo '<h4 class="serendipity_title"><a href="#">' . htmlspecialchars($entry['title']) . '</a></h4>';

                    echo '<div class="serendipity_entry"><div class="serendipity_entry_body">';
                    echo '<div class="serendipity_center">' . $link . '<img src="' . $imgsrc . '" /></a></div>';
                    echo '<br />';
                    echo $link . '&lt;&lt; ' . BACK . '</a>';

                    echo '</div></div></div>';
                    

                    return true;
                    break;

                case 'frontend_image_add_unknown':
                case 'frontend_image_add_filenameonly':
                case 'frontend_image_selector_submit':
                case 'frontend_image_selector_more':
                case 'frontend_image_selector_imagecomment':
                case 'frontend_image_selector_imagealign':
                case 'frontend_image_selector_imagesize':
                case 'frontend_image_selector_hiddenfields':
                    return true;
                    break;

                case 'frontend_image_selector_imagelink':
                    $this->display_target_selectbox();
                    return true;
                    break;

                case 'frontend_image_selector':
                    $eventData['finishJSFunction'] = 'serendipity_imageSelectorPlus_done(\'' . $serendipity['GET']['textarea'] . '\')';
                    $this->display_script();
                return true;
                break;

              default:
                return false;
            }

        } else {
            return false;
        }
    }
    
    /*
     *  function parse_quickblog_post makes a quickblog post from the picture
     *  given by $path @string
     */          
    
    function parse_quickblog_post($path, &$body) {
        global $serendipity;
        $file = basename($path);
        $dir  = dirname($path) . '/';
    
        $t       = serendipity_parseFileName($file);
        $f       = $t[0];
        $suf     = $t[1];
    
        $infile  = $dir . $file;
        $outfile = $dir . $f . '.quickblog.' . $suf;
    
        if (function_exists('exif_read_data') && file_exists($infile) && !serendipity_db_bool($this->get_config('force_jhead'))) {
            $exif      = exif_read_data($infile);
            $exif_mode = 'internal';
        } elseif (file_exists($infile)) {
            $exif_mode = 'jhead';
            $exif_raw  = explode("\n", @`jhead $infile`);
            $exif      = array();
    
            foreach((array)$exif_raw AS $line) {
                preg_match('@^(.+):(.+)$@U', $line, $data);
                $key = preg_replace('@[^a-z0-9]@i', '_', trim($data[1]));
                if (empty($key)) {
                    continue;
                }
                $exif[$key] .= trim($data[2]) . "\n";
            }
    
            if (count($exif) < 1) {
                $exif = false;
            }
        } else {
            $exif = false;
            $exif_mode = 'none';
        }
    
        $http_infile  = $this->httpize($infile);
        $http_outfile = $this->httpize($outfile);
    
        $quickblog = array(
            'image'     => $http_outfile,
            'fullimage' => $http_infile,
            'body'      => preg_replace('@(<!--quickblog:.+-->)@imsU', '', $body),
            'exif'      => &$exif,
            'exif_mode' => $exif_mode
        );
    
        $tfile = serendipity_getTemplateFile('quickblog.tpl', 'serendipityPath');
        if (!$tfile || $tfile == 'quickblog.tpl') {
            $tfile = dirname(__FILE__) . '/quickblog.tpl';
        }
    
        $inclusion = $serendipity['smarty']->security_settings[INCLUDE_ANY];
        $serendipity['smarty']->security_settings[INCLUDE_ANY] = true;
        $serendipity['smarty']->assign('quickblog', $quickblog);
        $content = $serendipity['smarty']->fetch('file:'. $tfile, null, null, false);
        $serendipity['smarty']->security_settings[INCLUDE_ANY] = $inclusion;
        
        return $content;
    }
    
    
    /*
     *  display_target_selectbox()
     *  displays select box for choosing target of image in the image selector
     *  depreceated, in new version >0.9 already in admin_image_selector.php     
     */          
    
    function display_target_selectbox() {
?>
<label id="select_image_target"><?php echo PLUGIN_EVENT_IMAGESELECTORPLUS_TARGET; ?></label>
    <select name="serendipity[target]" id="select_image_target">
        <option value="none" <?php echo ifRemember('target', 'none', false, 'selected'); ?>><?php echo NONE; ?></option>
        <option value="js" <?php echo ifRemember('target', 'js', false, 'selected'); ?>><?php echo PLUGIN_EVENT_IMAGESELECTORPLUS_TARGET_JS; ?></option>
        <option value="plugin" <?php echo ifRemember('target', 'plugin', false, 'selected'); ?>><?php echo PLUGIN_EVENT_IMAGESELECTORPLUS_TARGET_ENTRY; ?></option>
        <option value="_blank" <?php echo ifRemember('target', '_blank', false, 'selected'); ?>><?php echo PLUGIN_EVENT_IMAGESELECTORPLUS_TARGET_BLANK; ?></option>
    </select>
<br />
<?php
    
    }
    
    /*
     *  display_sript()
     *  displays script necessary for inserting target for images chosen by
     *  image selector      
     *  depreceated, in new version >0.9 already in admin_image_selector.php     
     */          
    function display_script() {
?>
<script type="text/javascript">
function serendipity_imageSelectorPlus_done(textarea)
{
    var insert = '';
    var img = '';
    var src = '';
    var f = document.forms['serendipity[selForm]'].elements;

    if (f['serendipity[linkThumbnail]'][0].checked == true) {
        img       = f['thumbName'].value;
        imgWidth  = f['imgThumbWidth'].value;
        imgHeight = f['imgThumbHeight'].value;
    } else {
        img       = f['imgName'].value;
        imgWidth  = f['imgWidth'].value;
        imgHeight = f['imgHeight'].value;
    }

    if (f['serendipity[filename_only]'] && f['serendipity[filename_only]'].value == 'true') {
        self.opener.serendipity_imageSelector_addToElement(img, f['serendipity[htmltarget]'].value);
        self.close();
        return true;
    }

    if (document.getElementById('serendipity_imagecomment').value != '') {
        styled = false;
    } else {
        styled = true;
    }

    floating = 'center';
    if (f['serendipity[align]'][0].checked == true) {
        img = "<img width='" + imgWidth + "' height='" + imgHeight + "' " + (styled ? 'style="border: 0px; padding-left: 5px; padding-right: 5px;"' : '') + ' src="' + img + "\" alt=\"\" />";
    } else if (f['serendipity[align]'][1].checked == true) {
        img = "<img width='" + imgWidth + "' height='" + imgHeight + "' " + (styled ? 'style="float: left; border: 0px; padding-left: 5px; padding-right: 5px;"' : '') + ' src="' + img + "\" alt=\"\" />";
        floating = 'left';
    } else if (f['serendipity[align]'][2].checked == true) {
        img = "<img width='" + imgWidth + "' height='" + imgHeight + "' " + (styled ? 'style="float: right; border: 0px; padding-left: 5px; padding-right: 5px;"' : '') + ' src="' + img + "\" alt=\"\" />";
        floating = 'right';
    }

    if (f['serendipity[isLink]'][1].checked == true) {
        targetval = f['serendipity[target]'].options[f['serendipity[target]'].selectedIndex].value;
        prepend   = '';
        ilink     = f['serendipity[url]'].value;
        if (!targetval || targetval == 'none') {
            itarget = '';
        } else if (targetval == 'js') {
            itarget = ' onclick="F1 = window.open(\'' + f['serendipity[url]'].value + '\',\'Zoom\',\''
                    + 'height=' + (parseInt(f['imgHeight'].value) + 15) + ','
                    + 'width='  + (parseInt(f['imgWidth'].value)  + 15) + ','
                    + 'top='    + (screen.height - f['imgHeight'].value) /2 + ','
                    + 'left='   + (screen.width  - f['imgWidth'].value)  /2 + ','
                    + 'toolbar=no,menubar=no,location=no,resize=1,resizable=1,scrollbars=yes\'); return false;"';
        } else if (targetval == '_blank') {
            itarget = ' target="_blank"';
        } else if (targetval == 'plugin') {
            itarget = ' id="s9yisphref<?php echo $serendipity['GET']['image']; ?>"';
            prepend = '<a title="' + ilink + '" id="s9yisp<?php echo $serendipity['GET']['image']; ?>"></a>';
            ilink   = '<?php echo $serendipity['baseURL'] . $serendipity['indexFile'] . '?serendipity[subpage]=s9yisp&amp;serendipity[id]={{s9yisp_entryid}}&amp;serendipity[image]=' . $serendipity['GET']['image']; ?>';
        }

        insert = prepend + "<a class='serendipity_image_link' href='" + ilink + "'" + itarget + ">" + img + "</a>";
    } else {
        insert = img;
    }

    if (document.getElementById('serendipity_imagecomment').value != '') {
        comment = f['serendipity[imagecomment]'].value;
        block = '<div class="serendipity_imageComment_' + floating + '" style="width: ' + imgWidth + 'px">'
              +     '<div class="serendipity_imageComment_img">' + insert + '</div>'
              +     '<div class="serendipity_imageComment_txt">' + comment + '</div>'
              + '</div>';
    } else {
        block = insert;
    }

    if (self.opener.editorref) {
        self.opener.editorref.surroundHTML(block, '');
    } else {
        self.opener.serendipity_imageSelector_addToBody(block, textarea);
    }

    self.close();
}
</script>
<?php
    
    }


/*
 * media_insert
 * this function replaces xml-like structure in the $text @string
 *  by images from media gallery
 */  
    function media_insert($text) {
        global $serendipity;
        // find in text parts which are mediainsert
        
        $text .= '(MEDIAINSERT PARSE)';
        $entry_parts = preg_split('@(<mediainsert>[\S\s]*?</mediainsert>)@', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
        $entry_parts[] = '(MEDIAINSERT PARSED)';
        
        // parse mediainserts 
        // (if xml parser is present at php installation
        //         - SimpleXMLElement in PHP > 5.0, users of older version could have troubles )
        // text is splitted into parts
        if (class_exists('SimpleXMLElement')) {
            $entry_parts[] = '(simpleXMLElement)';

            for ($i=0, $pcount = count($entry_parts); $i < $pcount; $i++) {
                $entry_parts[] = '(iterate:' . $i . ')';
                if (!(strpos($entry_parts[$i],"<mediainsert>") === false)) {  
                    $entry_parts[] = '(found!)';
                    $xml     = new SimpleXMLElement($entry_parts[$i]);           
                    $gallery = $xml->gallery['name'];
                 
                    $medias        = array();
                    $whole_gallery = false;
                    foreach ($xml->media as $medium) {
                        switch((string) $medium['type']) { // Get attributes as element indices
                        case 'single':
                            $medias[] = serendipity_db_escape_string($medium['name']);
                            break;

                        case 'range':
                            for ($j=intval($medium['start']);$j<=intval($medium['stop']);$j++) {
                                $medias[] = serendipity_db_escape_string($medium['prefix']) . $j;
                            }
                            break;

                        case 'gallery':
                            $whole_gallery = true;
                            break;

                        default:
                            break;
                        }
                    }
                  
                    // here we have desired gallery and desired pictures
                    // now read available ones from database
                    
                    if ($whole_gallery) {
                        $q = "SELECT name,extension,thumbnail_name,realname,path,value as comment1,dimensions_width as width, dimensions_height as height
                              FROM {$serendipity['dbPrefix']}images as i 
                              LEFT JOIN {$serendipity['dbPrefix']}mediaproperties as p ON (p.mediaid = i.id AND p.property='COMMENT1') 
                              WHERE i.path = '" . serendipity_db_escape_string($gallery) . "' ";                        
                    } else {
                        $images_suggestions = "'".implode("','",$medias)."'";
                        $q = "SELECT name,extension,thumbnail_name,realname,path,value as comment1,dimensions_width as width, dimensions_height as height
                              FROM {$serendipity['dbPrefix']}images as i 
                              LEFT JOIN {$serendipity['dbPrefix']}mediaproperties as p ON (p.mediaid = i.id AND p.property='COMMENT1') 
                              WHERE i.path = '" . serendipity_db_escape_string($gallery) . "' AND i.name IN ($images_suggestions)";
                    }

                    $entry_parts[] = '(query:' . $q . ')';

                    $t = serendipity_db_query($q);
                    
                    // here we have to order the results from database to respect
                    // the order of pictures in xml entry
                    // and at the same time we calculate thumbs size
                    
                    $thumb_size = $serendipity['thumbSize'];
                    $order      = array();
                    if (is_array($t)) {
                        for ($j=0, $tcount = count($t) ; $j < $tcount ; $j++) {
                            $h = intval($t[$j]["height"]);
                            $w = intval($t[$j]["width"]);
                            if ($w > $h) {
                                $t[$j]["thumbheight"] = round($thumb_size*$h/$w);
                                $t[$j]["thumbwidth"]  = round($thumb_size);
                            } else {
                                $t[$j]["thumbheight"] = round($thumb_size);
                                $t[$j]["thumbwidth"]  = round($thumb_size*$w/$h);
                            }
                            
                            if (strlen($t[$j]["comment1"]) == 0) {
                                $t[$j]["comment1"] = $t[$j]["name"];
                            }
    
                            $order[$j] = array_search($t[$j]["name"], $medias);
                            if (strlen($t[$j]["thumbnail_name"]) == 0) {
                                array_splice($t,$j,1);
                                $j--;
                                $tcount--;
                            }
                        }
    
                        array_multisort($order, SORT_ASC, SORT_NUMERIC, $t);
                        
                        // now make an output using template
    
                        $tfile = serendipity_getTemplateFile('plugin_mediainsert.tpl', 'serendipityPath');
                        if (!$tfile || $tfile == 'plugin_mediainsert.tpl') {
                            $tfile = dirname(__FILE__) . '/plugin_mediainsert.tpl';
                        }
                        $inclusion = $serendipity['smarty']->security_settings[INCLUDE_ANY];
                        $serendipity['smarty']->security_settings[INCLUDE_ANY] = true;
                        $serendipity['smarty']->assign('plugin_mediainsert_media', $t);
                        $content = $serendipity['smarty']->fetch('file:'. $tfile, null, null, false);
                        $serendipity['smarty']->security_settings[INCLUDE_ANY] = $inclusion;
                    } else {
                        // if there are no available images, do no output
                        $content= "";
                    }
                    
                    // fetch the output          
                    $entry_parts[$i] = $content;
                }
            }
        } else {
            $entry_parts[] = '(PHP5 XML not available!)';
        }

        return implode("", $entry_parts);
    }
    
    
    //////////////////////////////////////////////////////////////
    /// The following methods are used for the auto image resizing
    
    /**
     * Substitute img src attributes in $html with auto resize urls
     *
     * @author Adam Charnock (http://omniwiki.co.uk)
     * @param string $html
     * @return string The HTML with the transformed images
     */
    function substituteImages($html) {
        $imgTags = $this->getImageTags($html);
        //We need to make sure we substitute the last images first otherwise 
        //our char offsets will get messed up
        $imgTags = array_reverse($imgTags);
        
        foreach ($imgTags as $attrs) {
            $newTag = '<img';
            $attrPairs = array();
            foreach ($attrs as $k => $v) {
                if (strpos($k, '_') !== 0) {
                    if ($k == 'src') {
                        $v = $this->getTransformImg($attrs);
                    }
                    $quote = (strpos($v, '"') !== false) ? "'" : '"';
                    $attrPairs[] = "$k=$quote$v$quote";
                }
            }
            $newTag .= ' ' . implode(' ', $attrPairs) . ' />';
            
            //Now we need to splice the new tag into the HTML
            $firstHalf = substr($html, 0, $attrs['_offset']);
            $secondHalf = substr($html, $attrs['_offset'] + $attrs['_length']);
            
            $html = $firstHalf . $newTag . $secondHalf;
        }
        
        return $html;
    }
    
    /**
     * Gets an image ID based on the URL
     * 
     * The URL can be in the form:
     * 
     *     <maybe-something-here>/uploads/fireworks.jpg
     *   or
     *     <maybe-something-here>/templates_c/mediacache/cache_img1_300_300
     * 
     * The first example will cause the database to be queried. In the second 
     * example the image ID will be extracted directly from the URL
     * 
     * @param string The image URL
     * @return mixed An image ID if the URL could be matched, or false if the URL could not be matched
     */
    function getImageIdByUrl($url){
        global $serendipity;
        
        if (preg_match('#.*templates_c/mediacache/cache_img(\d+)_(\d*)_(\d*)#i', $url, $m)) {
            $imageId = $m[1];
        } else if (preg_match('#.*uploads(.*/)([^/]+)\.([a-z0-9]+)#i', $url, $m)) {
            $name = serendipity_db_escape_string($m[2]);
            $extension = serendipity_db_escape_string($m[3]);
            $path = serendipity_db_escape_string(ltrim($m[1], '/'));
            $sql = "SELECT id FROM {$serendipity['dbPrefix']}images WHERE name = '%s' AND extension = '%s' AND path = '%s'";
            $sql = sprintf($sql, $name, $extension, $path);
            $row = serendipity_db_query($sql, true);
            $imageId = $row['id'];
        } else {
            //We got an unrecognised url so return false
            $imageId = false;
        }
        
        return $imageId;
    }
    
    /**
     * Get the transformed src for an img tag
     *
     * @author Adam Charnock (http://omniwiki.co.uk)
     * @param array $attrs An associative array of the image's attributes. Must conatain src, and either width or height
     * @return unknown
     */
    function getTransformImg($attrs) {
        global $serendipity;
        
        /*
        Image URLs can be expected to look like either:
        <maybe-something-here>/uploads/fireworks.jpg
        or
        <maybe-something-here>/templates_c/mediacache/cache_img1_300_300
        */
        if (!isset($attrs['src']) || !$attrs['src']) {
            trigger_error('The $attrs parameter must contain a "src" key', E_USER_ERROR);
        }
        
        if ((!isset($attrs['height']) || !$attrs['height']) && (!isset($attrs['width']) || !$attrs['width'])) {
            //Without any height or width values we cannot do anything
            return $attrs['src'];
        }
        
        $url = $attrs['src'];
        $imageId = $this->getImageIdByUrl($url);
        if (!$imageId) {
            //We got an unrecognised url so don't do anything to it, just send it right back
            return $url;
        }
        
        //Create the new, transformed URL
        $newUrl = rtrim($serendipity['baseURL'], '/') . '/serendipity_admin_image_selector.php?serendipity[image]=%d&serendipity[disposition]=inline&serendipity[step]=showItem';
        if (isset($attrs['height']) && $attrs['height']) {
            $newUrl .= '&serendipity[resizeHeight]=' . (int)($attrs['height']);
        }
        if (isset($attrs['width']) && $attrs['width']) {
            $newUrl .= '&serendipity[resizeWidth]=' . (int)($attrs['width']);
        }
        
        $newUrl = sprintf($newUrl, $imageId);
        return $newUrl;
        
    }
    
    /**
     * Parses image tags out of a chunk of HTML
     * 
     * @author Adam Charnock (http://omniwiki.co.uk)
     * @param string $html
     * @return array An array of image tags. Each tag is an associative array of its attributes, plus _offset and _length
     */
    function getImageTags($html) {
        //Thanks to the following blog post for the inspiration for this regex:
        //http://kev.coolcavemen.com/2007/03/ultimate-regular-expression-for-html-tag-parsing-with-php/
        preg_match_all("/<\/?(\w+)((\s+\w+(\s*=\s*(?:\".*?\"|'.*?'|[^'\">\s]+))?)+\s*|\s*)\/?>/i", $html, $m, PREG_OFFSET_CAPTURE);
        $tags = array('types' => $m[1], 'attrs' => $m[2], 'wholetags' => $m[0]);
        
        //At this stage $tags['attrs'] is just an unparsed string
        
        $imgTags = array();
        for ($i=0; $i<count($tags['attrs']); $i++) {
            if ($tags['types'][$i][0] == 'img') {
                $parsedAttrs = $this->parseAttrs($tags['attrs'][$i][0]);
                if (isset($parsedAttrs['src'])) {
                    $parsedAttrs['_offset'] = $tags['wholetags'][$i][1];
                    $parsedAttrs['_length'] = strlen($tags['wholetags'][$i][0]);
                    $imgTags[] = $parsedAttrs;
                }
            }
        }
        
        return $imgTags;
    }
    
    /**
     * Parse the attribute portion of an HTML/XHTML/XML tag
     * 
     * The $atts param should (or rather, can) look something like:
     *     width="400" height='300' border=0 alt="This is an example!"
     * 
     * Which will produce an array as follows:
     * 
     * <pre>
     * array(4) {
     *   ["width"]=>
     *   string(3) "400"
     *   ["height"]=>
     *   string(5) "300"
     *   ["border"]=>
     *   string(1) "0"
     *   ["alt"]=>
     *   string(19) "This is an example!"
     * }
     * </pre>
     * 
     * @author Adam Charnock (http://omniwiki.co.uk)
     * @internal It may be possible to do this with a regex
     * @param string $attrs The tag string
     * @return array An associative array of attributes
     */
    function parseAttrs($attrs) {
        $parsedAttrs = array();
        $currentAttrName = '';
        $currentAttrValue = '';
        
        //We append an extra space to ensure the last attr gets processd
        $chars = str_split($attrs . ' ', 1);
        
        $state = 'read-name';
        $quote = '';
        foreach ($chars as $c) {
            switch ($state){
                case 'read-name':
                    if ($c == ' ' && !$currentAttrName){
                        break;
                    }
                    if ($c == '=' || $c == ' ') {
                        $state = 'read-value-start';
                    } else {
                        $currentAttrName .= $c;
                    }
                    break;
                case 'read-value-start':
                    if ($c == '"' || $c == "'") {
                        $quote = $c;
                    } else {
                        $quote = '';
                        $currentAttrValue .= $c;
                    }
                    $state = 'read-value';
                    break;
                case 'read-value':
                    if (in_array($c, array(' ', '/', '>')) && !$quote) {
                        $state = 'read-value-finished';
                    } else if($c == $quote) {
                        $state = 'read-value-finished';
                    } else {
                        $currentAttrValue .= $c;
                    }
                    break;
                case 'read-value-finished':
                    $parsedAttrs[$currentAttrName] = $currentAttrValue;
                    $currentAttrName = ($c == ' ') ? '' : $c;
                    $currentAttrValue = '';
                    $state = 'read-name';
                    break;
            }
        }
        
        return $parsedAttrs;
    }

}


/* vim: set sts=4 ts=4 expandtab : */