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+<?php
+
+/*
+ +-----------------------------------------------------------------------+
+ | program/include/rcube_enriched.php |
+ | |
+ | This file is part of the Roundcube Webmail client |
+ | Copyright (C) 2005-2012, 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)
+ {
+ $replace = array(
+ '<bold>' => '<b>', '</bold>' => '</b>',
+ '<italic>' => '<i>', '</italic>' => '</i>',
+ '<fixed>' => '<tt>', '</fixed>' => '</tt>',
+ '<smaller>' => '<font size=-1>', '</smaller>'=> '</font>',
+ '<bigger>' => '<font size=+1>', '</bigger>' => '</font>',
+ '<underline>' => '<span style="text-decoration: underline">', '</underline>' => '</span>',
+ '<flushleft>' => '<span style="text-align: left">', '</flushleft>' => '</span>',
+ '<flushright>' => '<span style="text-align: right">', '</flushright>' => '</span>',
+ '<flushboth>' => '<span style="text-align: justified">', '</flushboth>' => '</span>',
+ '<indent>' => '<span style="padding-left: 20px">', '</indent>' => '</span>',
+ '<indentright>' => '<span style="padding-right: 20px">', '</indentright>' => '</span>',
+ );
+
+ return str_ireplace(array_keys($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 = $a[1].'<span style="font-family: '.$a[2].'">'.$a[3].'</span>'.$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 = $a[1].'<span style="color: '.$color.'">'.$a[3].'</span>'.$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('<br>', $a[2]);
+
+ foreach ($lines as $n => $line)
+ $quoted .= '&gt;'.$line.'<br>';
+
+ $body = $a[1].'<span class="quotes">'.$quoted.'</span>'.$a[3];
+ }
+
+ return $body;
+ }
+
+ public static function to_html($body)
+ {
+ $body = str_replace('<<','&lt;',$body);
+ $body = self::convert_newlines($body);
+ $body = str_replace("\n", '<br>', $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;
+ }
+}