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Editing: rcube_enriched.php

<?php

/**
 +-----------------------------------------------------------------------+
 | This file is part of the Roundcube Webmail client |
 | |
 | Copyright (C) The Roundcube Dev Team |
 | |
 | Licensed under the GNU General Public License version 3 or |
 | any later version with exceptions for skins & plugins. |
 | See the README file for a full license statement. |
 | |
 | PURPOSE: |
 | Helper class to convert Enriched to HTML format (RFC 1523, 1896) |
 +-----------------------------------------------------------------------+
 | Author: Aleksander Machniak <alec@alec.pl> |
 | Author: Ryo Chijiiwa (IlohaMail) |
 +-----------------------------------------------------------------------+
*/

/**
 * Class for Enriched to HTML conversion
 *
 * @package    Framework
 * @subpackage Utils
 */
class rcube_enriched
{
    protected static function convert_newlines($body)
    {
        // remove single newlines, convert N newlines to N-1
        $body = str_replace("\r\n", "\n", $body);
        $len  = strlen($body);
        $nl   = 0;
        $out  = '';

for ($i=0; $i<$len; $i++) {
 $c = $body[$i];
 if (ord($c) == 10) {
 $nl++;
 }
 if ($nl && ord($c) != 10) {
 $nl = 0;
 }
 if ($nl != 1) {
 $out .= $c;
 }
 else {
 $out .= ' ';
 }
 }

return $out;
    }

protected static function convert_formatting($body)
 {
 $replace = [
 '<bold>' => '', '</bold>' => '',
 '<italic>' => '', '</italic>' => '',
 '<fixed>' => '<tt>', '</fixed>' => '</tt>',
 '<smaller>' => '', '</smaller>'=> '',
 '<bigger>' => '', '</bigger>' => '',
 '<underline>' => '', '</underline>' => '',
 '<flushleft>' => '', '</flushleft>' => '',
 '<flushright>' => '', '</flushright>' => '',
 '<flushboth>' => '', '</flushboth>' => '',
 '<indent>' => '', '</indent>' => '',
 '<indentright>' => '', '</indentright>' => '',
 ];

return str_ireplace(array_keys($replace), array_values($replace), $body);
    }

protected static function convert_font($body)
 {
 $pattern = '/(.*)\<fontfamily\>\<param\>(.*)\<\/param\>(.*)\<\/fontfamily\>(.*)/ims';

while (preg_match($pattern, $body, $a)) {
            if (count($a) != 5) {
                continue;
            }

$body = $a[1].''.$a[3].''.$a[4];
 }

return $body;
    }

protected static function convert_color($body)
 {
 $pattern = '/(.*)\<color\>\<param\>(.*)\<\/param\>(.*)\<\/color\>(.*)/ims';

while (preg_match($pattern, $body, $a)) {
            if (count($a) != 5) {
                continue;
            }

// extract color (either by name, or ####,####,####)
 if (strpos($a[2],',')) {
 $rgb = explode(',', $a[2]);
 $color = '#';
 for ($i=0; $i<3; $i++) {
 $color .= substr($rgb[$i], 0, 2); // just take first 2 bytes
 }
 }
 else {
 $color = $a[2];
 }

// put it all together
 $body = $a[1].''.$a[3].''.$a[4];
 }

return $body;
    }

protected static function convert_excerpt($body)
 {
 $pattern = '/(.*)\<excerpt\>(.*)\<\/excerpt\>(.*)/i';

while (preg_match($pattern, $body, $a)) {
            if (count($a) != 4) {
                continue;
            }

$quoted = '';
 $lines = explode(' ', $a[2]);

foreach ($lines as $line) {
 $quoted .= '&gt;'.$line.' ';
 }

$body = $a[1].''.$quoted.''.$a[3];
 }

return $body;
    }

/**
 * Converts Enriched text into HTML format
 *
 * @param string $body Enriched text
 *
 * @return string HTML text
 */
 public static function to_html($body)
 {
 $body = str_replace('<<','&lt;',$body);
 $body = self::convert_newlines($body);
 $body = str_replace("\n", ' ', $body);
 $body = self::convert_formatting($body);
 $body = self::convert_color($body);
 $body = self::convert_font($body);
 $body = self::convert_excerpt($body);
 //$body = nl2br($body);

return $body;
    }
}

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