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<?php
/*
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2007 Bharat Mediratta
*
* 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.
*/
/*
* Smarty plugin
* -------------------------------------------------------------
* Type: modifier
* Name: markup
* Purpose: Format embedded markup in the given string according
* to settings specified in site admin (no markup, bbcode or
* raw html)
* -------------------------------------------------------------
*/
function smarty_modifier_markup($text) {
static $parsers = array();
static $cacheKey = 'smarty_modifier_markup';
$stripTags = false;
$args = func_get_args();
array_shift($args);
foreach ($args as $arg) {
if ($arg == 'strip') {
$stripTags = true;
} else {
$markupType = $arg;
}
}
if (!isset($markupType)) {
if (!GalleryDataCache::containsKey($cacheKey)) {
list ($ret, $defaultMarkupType) =
GalleryCoreApi::getPluginParameter('module', 'core', 'misc.markup');
if ($ret) {
/* This code is used by the UI -- we can't return an error. Choose something safe */
$defaultMarkupType = 'none';
}
GalleryDataCache::put($cacheKey, $defaultMarkupType);
}
$markupType = GalleryDataCache::get($cacheKey);
}
if (!isset($parsers[$markupType])) {
switch($markupType) {
case 'bbcode':
$parsers[$markupType] = new GalleryBbcodeMarkupParser();
break;
case 'html':
$parsers[$markupType] = new GalleryHtmlMarkupParser();
break;
case 'none':
default:
$parsers[$markupType] = new GalleryNoMarkupParser();
}
}
$text = $parsers[$markupType]->parse($text);
return $stripTags ? strip_tags($text) : $text;
}
class GalleryNoMarkupParser {
function parse($text) {
return $text;
}
}
class GalleryHtmlMarkupParser {
function parse($text) {
/* http://bugs.php.net/bug.php?id=22014 - TODO: remove empty check when min php is 4.3.2+ */
return empty($text) ? $text : html_entity_decode($text);
}
}
class GalleryBbcodeMarkupParser {
var $_bbcode;
function GalleryBbcodeMarkupParser() {
if (!class_exists('StringParser_BBCode')) {
GalleryCoreApi::requireOnce('lib/bbcode/stringparser_bbcode.class.php');
}
$this->_bbcode = new StringParser_BBCode();
$this->_bbcode->setGlobalCaseSensitive(false);
/* Convert line breaks everywhere */
$this->_bbcode->addParser(array('block', 'inline', 'link', 'listitem', 'list'),
array($this, 'convertLineBreaks'));
/*
* Escape all characters everywhere
* We don't need to do this 'cause G2 doesn't allow raw entities into the database
* $this->_bbcode->addParser('htmlspecialchars',
* array('block', 'inline', 'link', 'listitem'));
*/
/* Convert line endings */
$this->_bbcode->addParser(array('block', 'inline', 'link', 'listitem'), 'nl2br');
/* Strip last line break in list items */
$this->_bbcode->addParser(array('listitem'), array($this, 'stripLastLineBreak'));
/* Strip contents in list elements */
$this->_bbcode->addParser(array('list'), array($this, 'stripContents'));
/* [b], [i] */
$this->_bbcode->addCode('b', 'simple_replace', null,
array('start_tag' => '<b>', 'end_tag' => '</b>'),
'inline', array('listitem', 'block', 'inline', 'link'), array());
$this->_bbcode->addCode('i', 'simple_replace', null,
array('start_tag' => '<i>', 'end_tag' => '</i>'),
'inline', array('listitem', 'block', 'inline', 'link'), array());
/* [url]http://...[/url], [url=http://...]Text[/url] */
$this->_bbcode->addCode('url', 'usecontent?', array($this, 'url'),
array('usecontent_param' => 'default'),
'link', array('listitem', 'block', 'inline'), array('link'));
/* [color=...]Text[/color] */
$this->_bbcode->addCode('color', 'callback_replace', array($this, 'color'),
array('usecontent_param' => 'default'),
'inline', array('listitem', 'block', 'inline', 'link'), array());
/* [img]http://...[/img] */
$this->_bbcode->addCode('img', 'usecontent', array($this, 'image'), array(),
'image', array('listitem', 'block', 'inline', 'link'), array());
/* [list] [*]Element [/list] */
$this->_bbcode->addCode('list', 'simple_replace', null,
array('start_tag' => '<ul>', 'end_tag' => '</ul>'),
'list', array('block', 'listitem'), array());
$this->_bbcode->addCode('*', 'simple_replace', null,
array('start_tag' => '<li>', 'end_tag' => "</li>\n"),
'listitem', array('list'), array());
$this->_bbcode->setCodeFlag('*', 'closetag', BBCODE_CLOSETAG_OPTIONAL);
}
function parse($text) {
return $this->_bbcode->parse($text);
}
function url($action, $attributes, $content, $params, &$node_object) {
if ($action == 'validate') {
/* The code is like [url]http://.../[/url] */
if (!isset ($attributes['default'])) {
return preg_match('#^(https?|ftp|mailto):|^/#', $content);
} else {
/* The code is like [url=http://.../]Text[/url] */
return preg_match('#^(https?|ftp|mailto):|^/#', $attributes['default']);
}
} else {
/* Output of HTML. */
/* The code is like [url]http://.../[/url] */
if (!isset ($attributes['default'])) {
return '<a href="' . $content . '">' . $content . '</a>';
} else {
/* The code is like [url=http://.../]Text[/url] */
return '<a href="' . $attributes['default'] . '">' . $content . '</a>';
}
}
}
function image($action, $attrs, $content, $params, &$node_object) {
if ($action == 'validate') {
return preg_match('#^(https?|ftp|mailto):|^/#', $content);
} else {
/* Output of HTML. */
$size = (isset($attrs['width']) ? ' width="' . (int)$attrs['width'] . '"' : '')
. (isset($attrs['height']) ? ' height="' . (int)$attrs['height'] . '"' : '');
/* Input should have entities already, so no htmlspecialchars here */
return sprintf('<img src="%s" alt=""%s/>', $content, $size);
}
}
function color($action, $attrs, $content, $params, &$node_object) {
if ($action == 'validate') {
return !empty($attrs['default']);
} else {
/* Output of HTML. */
$color = empty($attrs) ? 'bummer' : $attrs['default'];
return sprintf('<font color="%s">%s</font>', $color, $content);
}
}
function convertLineBreaks($text) {
return preg_replace("/\015\012|\015|\012/", "\n", $text);
}
function stripContents($text) {
return preg_replace("/[^\n]/", '', $text);
}
function stripLastLineBreak ($text) {
return preg_replace("/\n( +)?$/", '$1', $text);
}
}
?>
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