wiki_parser.php

См. документацию.

<?
 
IncludeModuleLangFile(__FILE__);
 
class CWikiParser
{
    public $arNowiki = array();
    public $arCode = array();
    public $arLink = array();
    public $arLinkExists = array();
    public $arFile = array();
    public $arVersionFile = array();
 
    private $postUrl = "";
    private $textType = "";
 
    function __construct()
    {
 
    }
 
    function Parse($text, $type = 'text', $arFile = array(), $arParams = array())
    {
        $type = $this->textType = ($type == 'html' ? 'html' : 'text');
        $this->arNowiki = array();
        $this->arLink = array();
        $this->arLinkExists = array();
        $this->arFile = $arFile;
        $this->arVersionFile = array();
        // An array can be either array (23,45,67), and array ('file_name' => 'file_path'), if this version of the document in the history of
        if (!is_array($this->arFile))
            $this->arFile = array();
        foreach ($this->arFile as $_k => $file)
        {
            if (!is_numeric($file) && !is_numeric($_k))
            {
                $this->arVersionFile[$_k] = $file;
                unset($this->arFile[$_k]);
            }
        }
        reset($this->arFile);
 
        if(isset($arParams["POST_URL"]))
            $this->postUrl = (CMain::IsHTTPS() ? "https://" : "http://").$_SERVER["HTTP_HOST"].$arParams["POST_URL"];
 
        // cut code
        $text = preg_replace_callback("/(\{\{\{(.*)\}\}\})/imsUu", array(&$this, '_codeCallback'), $text);
        $text = preg_replace_callback("/(\[CODE\](.*)\[\/CODE\])/imsUu", array(&$this, '_codeCallback'), $text);
 
        // cut nowiki
        $text = preg_replace_callback('/(<nowiki>(.*)<\/nowiki>)/isUu', array(&$this, '_noWikiCallback'), $text);
 
        #if($this->textType == "html")
        #   $text = CWikiUtils::htmlspecialchars_decode($text);
 
        // bi
        $text = str_replace("&#039;&#039;&#039;", "'''", $text);
        $text = str_replace("&#039;&#039;", "''", $text);
        $text = preg_replace(
            array(
                '/\'{3}(.*)\'{2}(.+)\'{2}(.*)\'{3}/imUu',
                '/\'{3}(.+)\'{3}/imUu',
                '/\'{2}(.+)\'{2}/imUu'
            ),
            array(
                '<b>\\1<i>\\2</i>\\3</b>',
                '<b>\\1</b>',
                '<i>\\1</i>'
            ),
            $text);
 
        // hr
        $text = preg_replace( '/-----*/u', '\\1<hr />', $text );
 
        // Header
        for($i = 6; $i >= 1; $i--)
        {
            $_H = str_repeat('=', $i);
            $text = preg_replace('/^\s*'.$_H.'(.+?)'.$_H.'\s*$/miUu', '<H'.$i.'>\\1</H'.$i.'>', $text);
        }
 
 
        // Internal link & categories
        $text = $this->processInternalLink($text);
 
        // External link
        $text = preg_replace_callback('/\[((http|https|ftp)(.+))( (.+))?\]/iUu', array(&$this, '_processExternalLinkCallback'), $text);
 
 
        // images and other files
        $text = preg_replace_callback('/\[?\[(:)?(File|'.GetMessage('FILE_NAME').'):(.+)\]\]?/iUu', array(&$this, '_processFileCallback'), $text);
 
        // TOC
        $text = $this->processToc($text);
 
        // Paste nowiki
        if (!empty($this->arNowiki))
            $text = preg_replace_callback('/(##NOWIKI(\d+)##)/isUu', array(&$this, '_noWikiReturnCallback'), $text);
 
 
        $text = preg_replace_callback('/(##NOWIKI(\d+)##)/isUu', array(&$this, '_noWikiReturn2Callback'), $text);
 
        if ($type == 'text')
        {
            $text = preg_replace("/(<\s*\/?(h(\d+)|li|ul|ol|p|table|tbody|td|tr|hr|div|span)\s*>)\s*(<\s*br\s*\/*\s*>){0,1}(\s*(\r*\n)\s*){1,2}/ism", "$1##NN##", $text);
            $text = preg_replace("/(<\s*(ul)\s*>)\s*(<\s*br\s*\/*\s*>){0,1}(\s*(\r*\n)\s*){1,2}/ism", "$1##NN##", $text);
            $text = preg_replace("/<\s*br\s*\/*\s*>\s*(\r*\n)/ismU", "##BR##", $text);
            $text = self::NToBr($text);
            $text = preg_replace("/##NN##/ismU","\n", $text);
            $text = preg_replace("/##BR##/ismU","<br />\n", $text);
        }
 
        // Paste code
        $text = preg_replace_callback('/(##CODE(\d+)##)/isUu', array(&$this, '_codeReturnCallback'), $text);
 
        //      $text .= '<div style="clear:both"></div>';
 
        return $text;
    }
 
    static function NToBr($text)
    {
        $ret = preg_replace("/(<\s*br\s*\/*\s*>)*\s*(\r)*\n/ism", "<br />\n",$text);
        return $ret;
    }
 
    static function BrToN($text)
    {
        $ret = preg_replace("/<\s*br\s*\/*>((\r)*\n)*/ism", "\n",$text);
        return $ret;
    }
 
    static function Clear($text)
    {
        $arWhiteTags = array(
            'a'         => array('href', 'title','name','style','id','class','shape','coords','alt','target'),
            'b'         => array('style','id','class'),
            'br'        => array('style','id','class'),
            'big'       => array('style','id','class'),
            'caption'   => array('style','id','class'),
            'code'      => array('style','id','class'),
            'color'     => array(),
            'del'       => array('title','style','id','class'),
            'div'       => array('title','style','id','class','align'),
            'dt'        => array('style','id','class'),
            'dd'        => array('style','id','class'),
            'font'      => array('color','size','face','style','id','class'),
            'h1'        => array('id','class','align'),
            'h2'        => array('id','class','align'),
            'h3'        => array('id','class','align'),
            'h4'        => array('id','class','align'),
            'h5'        => array('id','class','align'),
            'h6'        => array('id','class','align'),
            'hr'        => array('style','id','class'),
            'i'         => array('style','id','class'),
            'img'       => array('src','alt','height','width','title'),
            'ins'       => array('title','style','id','class'),
            'li'        => array('style','id','class'),
            'list'      => array(),
            'map'       => array('shape','coords','href','alt','title','style','id','class','name'),
            'nowiki'    => array(),
            'ol'        => array('style','id','class'),
            'p'         => array('style','id','class','align'),
            'pre'       => array('style','id','class'),
            's'         => array('style','id','class'),
            'small'     => array('style','id','class'),
            'strong'    => array('style','id','class'),
            'span'      => array('title','style','id','class','align'),
            'sub'       =>array('style','id','class'),
            'sup'       =>array('style','id','class'),
            'table'     => array('border','width','style','id','class','cellspacing','cellpadding'),
            'tbody'     => array('align','valign','style','id','class'),
            'td'        => array('width','height','style','id','class','align','valign','colspan','rowspan'),
            'tfoot'     => array('align','valign','style','id','class','align','valign'),
            'th'        => array('width','height','style','id','class','colspan','rowspan'),
            'thead'     => array('align','valign','style','id','class'),
            'tr'        => array('align','valign','style','id','class'),
            'ul'        => array('style','id','class'),
            'blockquote'    => array(),
            'u'         => array('style','id','class')
            );
 
        /* TODO:erase CBXSanitizer::SetTags($arWhiteTags);
        $text=CBXSanitizer::Sanitize($text,'CUSTOM',true,true); */
 
        $Sanitizer = new CBXSanitizer;
        $Sanitizer->AddTags($arWhiteTags);
 
        //TODO: delete condition, after main update
        if(method_exists($Sanitizer,"ApplyDoubleEncode"))
            $Sanitizer->ApplyDoubleEncode(false);
 
        $text = $Sanitizer->SanitizeHtml($text);
 
        return $text;
    }
 
    function _processFileCallback($matches)
    {
        static $sImageAlign = '';
        $bLink = false;
        if ($matches[1] == ':')
            $bLink = true;
 
        // if the internal file then get it
        $sFile = $sFileName = $sPath = CWikiUtils::htmlspecialcharsback(trim($matches[3]));
        $bOur = false;
 
        if (is_numeric($sFile) && in_array($sFile, $this->arFile))
        {
            $arFile = CFile::GetFileArray($sFile);
            if ($arFile != false)
            {
                $bOur = true;
                $sPath = $arFile['SRC'];
                $sFileName = $arFile['ORIGINAL_NAME'];
            }
        }
        else if (isset($this->arVersionFile[mb_strtolower($sFile)]))
        {
            $sPath = $this->arVersionFile[mb_strtolower($sFile)];
            $sFileName = $sFile;
        }
        else if (!empty($this->arFile))
        {
            $arFilter = array(
                '@ID' => implode(',', $this->arFile)
            );
 
            $rsFile = CFile::GetList(array(), $arFilter);
            while($arFile = $rsFile->Fetch())
            {
                if ($arFile['ORIGINAL_NAME'] == $sFile)
                {
                    $bOur = true;
                    $sFile = $arFile['ID'];
 
                    $sPath = CFile::GetFileSRC($arFile);
                    $sFileName = $arFile['ORIGINAL_NAME'];
                    break;
                }
            }
        }
 
        // if the image is processed as a picture
        $sName = bx_basename($sPath);
 
        if (CFile::IsImage($sName))
        {
            if ($bOur)
            {
                $imageFile = CFile::MakeFileArray($sPath);
                $checkRes = CFile::CheckImageFile($imageFile);
 
                if($checkRes != null)
                    return $checkRes;
 
                if ($bLink)
                    $sReturn = '<a href="'.htmlspecialcharsbx($sPath).'" title="'.($s = htmlspecialcharsbx($sFileName)).'">'.$s.'</a>';
                else
                {
                    $sReturn  = CFile::ShowImage($sFile,
                        COption::GetOptionString('wiki', 'image_max_width', 600),
                        COption::GetOptionString('wiki', 'image_max_height', 600),
                        'border="0" align="'.$sImageAlign.'"'
                    );
                }
            }
            else
            {
                if ($bLink)
                    $sReturn = '<a href="'.htmlspecialcharsbx($sPath).'" title="'.($s = htmlspecialcharsbx($sName)).'">'.$s.'</a>';
                else
                    $sReturn = '<img src="'.htmlspecialcharsbx($sPath).'" alt="'.htmlspecialcharsbx($sFileName).'"/>';
            }
        }
        else if (mb_strpos($sPath, 'http://') === 0)
            $sReturn = ' [ <a href="'.htmlspecialcharsbx($sFile).'" title="'.GetMessage('FILE_FILE_DOWNLOAD').'">'.GetMessage('FILE_DOWNLOAD').'</a> ] ';
        // otherwise the file
        else
            $sReturn = '['.GetMessage('FILE_NAME').':'.htmlspecialcharsbx((is_numeric($sFile)  || empty($sFileName) ? $sFile : $sFileName)).']';
 
        return $sReturn;
    }
 
    function _processExternalLinkCallback($matches)
    {
        $sLink = trim($matches[1]);
        $sName = $sTitle = $sLink;
 
        $matches[5] = isset($matches[5]) ? trim($matches[5]) : '';
        if (!empty($matches[5]))
            $sTitle = trim($matches[5]);
        $sTitle = strip_tags($sTitle);
 
        $sReturn = '<a href="'.htmlspecialcharsbx($sLink).'" title="'.htmlspecialcharsbx($sName).'">'.$sTitle.'</a>';
        return $sReturn;
    }
 
    function processInternalLink($text)
    {
        global $APPLICATION, $arParams;
        $text = preg_replace_callback('/\[\[(.+)(\|(.*))?\]\]/iUu', array(&$this, '_processInternalLinkPrepareCallback'), $text);
        $text = preg_replace('/(##Category##)(\s)*((\r*)\n)*/',"", $text);
        // check pages for exists
        if (!empty($this->arLink))
        {
            $arFilter = array();
            $arFilter['=NAME'] = $this->arLink;
            $arFilter['IBLOCK_ID'] = $arParams['IBLOCK_ID'];
            $arFilter['ACTIVE'] = 'Y';
            $arFilter['CHECK_PERMISSIONS'] = 'N';
            if (CWikiSocnet::IsSocNet())
                $arFilter['SUBSECTION'] = CWikiSocnet::$iCatId;
            $rsElement = CIBlockElement::GetList(array(), $arFilter, false, false, Array());
            while($obElement = $rsElement->GetNextElement())
            {
                $arFields = $obElement->GetFields();
                $this->arLinkExists[] = mb_strtolower(CWikiUtils::htmlspecialcharsback($arFields['NAME'], true));
            }
        }
 
        $text = preg_replace_callback('/(##LINK(\d+)##)/isUu', array(&$this, '_processInternalLinkCallback'), $text);
 
        return $text;
    }
 
    function _processInternalLinkPrepareCallback($matches)
    {
        $sLink = trim($matches[1]);
        $sName = $sTitle = $sLink;
        $sCatName = '';
        $matches[3] = isset($matches[3]) ? trim($matches[3]) : '';
 
        if (!empty($matches[3]))
            $sName = $sTitle = $matches[3];
        else
        {
            if (CWikiUtils::IsCategoryPage($sName, $sCatName))
                return '##Category##';
        }
 
        $sTitle = strip_tags($sTitle);
        $i = count($this->arLink);
        $this->arLink[] = CWikiUtils::htmlspecialcharsback($matches[1], true);
        $sReturn = '<a ##LINK'.$i.'## title="'.$sTitle.'">'.$sName.'</a>';
        return $sReturn;
    }
 
    function _processInternalLinkCallback($matches)
    {
        global $arParams;
 
        $sReturn = '';
        if (in_array(mb_strtolower($this->arLink[$matches[2]]), $this->arLinkExists))
        {
            $sURL = CComponentEngine::MakePathFromTemplate($arParams['PATH_TO_POST'],
                array(
                    'wiki_name' => rawurlencode($this->arLink[$matches[2]]),
                    'group_id' => CWikiSocnet::$iSocNetId
                )
            );
            $sReturn = 'href="'.$sURL.'"';
        }
        else
        {
            $sURL = CHTTP::urlAddParams(
                CComponentEngine::MakePathFromTemplate(
                    $arParams['PATH_TO_POST_EDIT'],
                    array(
                        'wiki_name' => rawurlencode($this->arLink[$matches[2]]),
                        'group_id' => CWikiSocnet::$iSocNetId
                    )
                ),
                $arParams['IN_COMPLEX'] == 'Y' && $arParams['SEF_MODE'] == 'N' ? array($arParams['OPER_VAR'] => 'edit') : array()
            );
 
            $sReturn = 'href="'.$sURL.'" class="wiki_red"';
        }
 
        return $sReturn;
    }
 
    function processToc($text)
    {
        $matches = array();
        $sToc = '';
        if (preg_match_all('/<H(?<level>\d)(?<parameters>.*)>(?<innerHtml>.*)<\/H\g<level>>/isUu', $text, $matches, PREG_SET_ORDER))
        {
            if (count($matches) > 4)
            {
                $iCurrentToc = 1;
                // work level TOC
                $iCurrentTocLevel = 0;
                // previous user defined level of TOC
                $iRealPrevItemTocLevel = 1;
                // previous working level of TOC
                $iPrevItemTocLevel = 0;
                // current user defined the level of TOC
                $iRealItemTocLevel = 1;
 
                $bfirst = true;
                $aNumToc = array();
                foreach ($matches as $_m =>  $arMatch)
                {
                    $iRealItemTocLevel = (int)$arMatch['level'];
                    $sItemToc = trim($arMatch['innerHtml']);
                    // normalize levels
                    if ($bfirst && $iRealPrevItemTocLevel < $iRealItemTocLevel)
                        $iItemTocLevel = 1;
                    else if ($iCurrentTocLevel == 1 && $iRealItemTocLevel < $iRealPrevItemTocLevel)
                        $iItemTocLevel = $iCurrentTocLevel;
                    else if ($iRealItemTocLevel > $iRealPrevItemTocLevel)
                        $iItemTocLevel = $iCurrentTocLevel + 1;
                    else if ($iRealItemTocLevel < $iRealPrevItemTocLevel)
                    {
                        $_delta = $iRealPrevItemTocLevel - $iRealItemTocLevel;
                        $iItemTocLevel = $iCurrentTocLevel - $_delta;
                        if ($iItemTocLevel < 1)
                            $iItemTocLevel = 1;
                    }
                    else
                        $iItemTocLevel = $iCurrentTocLevel;
 
                    // create a numbering of TOC
                    $iCurrentNumTocLevel = $bfirst ? 1 : $iItemTocLevel;
                    $aNumToc[$iCurrentNumTocLevel] =  !isset($aNumToc[$iCurrentNumTocLevel]) ? 1 : $aNumToc[$iCurrentNumTocLevel] + 1;
                    if ($iItemTocLevel < $iPrevItemTocLevel)
                    {
                        for ($i = $iItemTocLevel + 1; $i <= $iPrevItemTocLevel; $i++)
                            unset($aNumToc[$i]);
                    }
 
                    // build a TOC
                    if ($iItemTocLevel > $iCurrentTocLevel || empty($sToc))
                    {
                        $iCurrentTocLevel++;
                        $sToc .= '<ul>';
                    }
                    else if ($iItemTocLevel < $iCurrentTocLevel)
                    {
                        if ($iItemTocLevel <= 0)
                            $iItemTocLevel = 1;
 
                        if ($iCurrentTocLevel > 1)
                        {
                            for ($i = 0; $i < ($iCurrentTocLevel - $iItemTocLevel); $i++)
                                $sToc .= '</ul>';
                        }
                        else
                            $sToc .= '</ul>';
 
                        if ($iCurrentTocLevel > 1)
                            $iCurrentTocLevel = $iItemTocLevel;
 
                    }
 
                    $iRealPrevItemTocLevel = $iRealItemTocLevel;
                    $iPrevItemTocLevel = $iItemTocLevel;
                    $bfirst = false;
                    $sNumToc = implode('.', $aNumToc);
                    $sItemTocId = str_replace(array('%', '+', '.F2', '..'), array('.', '.', '_', '.'), rawurlencode($sItemToc.$sNumToc));
                    $sToc .= '<li><a href="';
 
                    if($this->postUrl) //http://jabber.bx/view.php?id=28203
                        $sToc.= $this->postUrl;
 
                    $sToc .= '#'.$sItemTocId.'">'.$sNumToc.' '.strip_tags($sItemToc).'</a></li>';
                    $matches[$_m]['innerHtml'] = $sItemToc;
                    $matches[$_m]['tocId'] = $sItemTocId;
                }
 
                for ($i = $iCurrentTocLevel; $i > 0; $i--)
                    $sToc .= '</ul>';
 
                $bfirst = true;
                foreach ($matches as $arMatch)
                {
                    $sReplase = '<H'.$arMatch['level'].$arMatch['parameters'].'><span id="'.$arMatch['tocId'].'">'.$arMatch['innerHtml'].'</span></H'.$arMatch['level'].'>';
                    if ($bfirst)
                        $sReplase = $sToc.'<br/>'.$sReplase;
                    // so as not to replace all of the same titles
                    $text = preg_replace('/'.preg_quote($arMatch[0], '/').'/u', $sReplase, $text, 1);
                    $bfirst = false;
                }
            }
        }
 
        return $text;
    }
 
    function _codeCallback($matches)
    {
        $codeText = "";
        $i = count($this->arCode);
        $codeText = $matches[2];
 
        if($this->textType == "html")
            $codeText = CWikiUtils::htmlspecialchars_decode($codeText);
 
        $this->arCode[] = $codeText;
 
        return '##CODE'.$i.'##';
    }
 
    function _noWikiCallback($matches)
    {
        $i = count($this->arNowiki);
        $this->arNowiki[] = $matches[2];
 
        return '##NOWIKI'.$i.'##';
    }
 
    function _codeReturnCallback($matches)
    {
        return '<pre><code>'.$this->arCode[$matches[2]].'</code></pre>';
    }
 
    function _noWikiReturnCallback($matches)
    {
        return $this->arNowiki[$matches[2]];
    }
 
    function _noWikiReturn2Callback($matches)
    {
        return '<nowiki>'.htmlspecialcharsbx($this->arNowiki[$matches[2]]).'</nowiki>';
 
    }
 
    function parseBeforeSave($text, &$arCat = array(), $nameTemplate = "")
    {
        $userLogin = CWikiUtils::GetUserLogin(array(), $nameTemplate);
 
        //$text = preg_replace_callback('/(<nowiki>(.*)<\/nowiki>)/isUu', array(&$this, '_noWikiCallback'), $text);
 
        // Subscribe
        $text = preg_replace( '/--~~~~*/u', '\\1--'.$userLogin.' '.ConvertTimeStamp(false, 'FULL'), $text );
 
        // Category
        $matches = array();
        $textWithoutNowiki = preg_replace('/(<nowiki>(.*)<\/nowiki>)/isUu', '', $text);
        if (preg_match_all('/\[\[(Category|'.GetMessage('CATEGORY_NAME').'):(.+)\]\]/iUu', $textWithoutNowiki, $matches))
            $arCat = array_unique($matches[2]);
 
        //$text = preg_replace_callback('/(##NOWIKI(\d+)##)/isUu', array(&$this, '_noWikiReturn2Callback'), $text);
 
        return $text;
    }
 
    function parseForSearch($text)
    {
        // delete Category
        $text = preg_replace('/\[\[(Category|'.GetMessage('CATEGORY_NAME').'):(.+)\]\]/iUu', '', $text);
        // delete Files
        $text = preg_replace('/\[?\[(:)?(File|'.GetMessage('FILE_NAME').'):(.+)\]\]?/iUu', '', $text);
        // delete External Links
        $text = preg_replace('/\[((http|https|ftp)(.+))( (.+))?\]/iUu', '\\1\\2 \\5', $text);
        // delete Internal Links
        $text = preg_replace('/\[\[(.+(?!:))(\|(.*))?\]\]/iUu', '\\1\\2', $text);
 
        // delete Headers
        for($i = 6; $i >= 1; $i--)
        {
            $_H = str_repeat('=', $i);
            $text = preg_replace('/'.$_H.'(.*?)'.$_H.'/miUu', '\\1', $text);
        }
 
        return $text;
    }
 
}
 
?>