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<?php
/**
* Bitrix Framework
* @package bitrix
* @subpackage main
* @copyright 2001-2023 Bitrix
*/
class PHPParser
{
protected static $arAllStr;
public static function ReplString($str, $arAllStr)
{
self::$arAllStr = $arAllStr;
if(preg_match("'^\x01([0-9]+)\x02$'s", $str))
{
return preg_replace_callback("'\x01([0-9]+)\x02's", "PHPParser::getString", $str);
}
if(strval(floatval($str)) == $str)
{
return preg_replace_callback("'\x01([0-9]+)\x02's", "PHPParser::getQuotedString", $str);
}
elseif($str == "")
{
return "";
}
else
{
return "={".preg_replace_callback("'\x01([0-9]+)\x02's", "PHPParser::getQuotedString", $str)."}";
}
}
public static function getString($matches)
{
return self::$arAllStr[$matches[1]];
}
public static function getQuotedString($matches)
{
return '"'.self::$arAllStr[$matches[1]].'"';
}
public static function GetParams($params)
{
$arParams = array();
$brackets = 0;
$param_tmp = "";
$params_l = mb_strlen($params);
for($i=0; $i<$params_l; $i++)
{
$ch = mb_substr($params, $i, 1);
if($ch == "(" || $ch == "[")
{
$brackets++;
}
elseif($ch == ")" || $ch == "]")
{
$brackets--;
}
elseif($ch=="," && $brackets == 0)
{
$arParams[] = $param_tmp;
$param_tmp = "";
continue;
}
if($brackets < 0)
break;
$param_tmp .= $ch;
}
if($param_tmp <> "")
{
$arParams[] = $param_tmp;
}
return $arParams;
}
public static function GetParamsRec($params, &$arAllStr, &$arResult)
{
$found = false;
$paramsList = "";
if (mb_strtolower(substr($params, 0, 6)) == 'array(')
{
$found = true;
$paramsList = substr($params, 6);
}
elseif(str_starts_with($params, "["))
{
$found = true;
$paramsList = substr($params, 1);
}
if($found)
{
$arParams = PHPParser::GetParams($paramsList);
foreach ($arParams as $i => $el)
{
$p = mb_strpos($el, "=>");
if ($p === false)
{
if(is_string($arResult))
{
$arResult = PHPParser::ReplString($el, $arAllStr);
}
else
{
PHPParser::GetParamsRec($el, $arAllStr, $arResult[$i]);
}
}
else
{
$el_ind = PHPParser::ReplString(mb_substr($el, 0, $p), $arAllStr);
$el_val = mb_substr($el, $p + 2);
PHPParser::GetParamsRec($el_val, $arAllStr, $arResult[$el_ind]);
}
}
}
else
{
$arResult = PHPParser::ReplString($params, $arAllStr);
}
}
// Parse string and check if it is a component call. Return call params array
public static function CheckForComponent($str)
{
if(str_starts_with($str, "<?php"))
$str = substr($str, 5);
else
$str = substr($str, 2);
$str = substr($str, 0, -2);
$bSlashed = false;
$bInString = false;
$arAllStr = array();
$new_str = "";
$string_tmp = "";
$quote_ch = "";
$i = -1;
$length = mb_strlen($str);
while($i < $length-1)
{
$i++;
$ch = mb_substr($str, $i, 1);
if(!$bInString)
{
if($string_tmp!="")
{
$arAllStr[] = $string_tmp;
$string_tmp = "";
$new_str .= chr(1).(count($arAllStr)-1).chr(2);
}
//comment
if($ch == "/" && $i+1 < $length)
{
$ti = 0;
if(mb_substr($str, $i + 1, 1) == "*" && ($ti = mb_strpos($str, "*/", $i + 2))!==false)
$ti += 2;
elseif(mb_substr($str, $i + 1, 1) == "/" && ($ti = mb_strpos($str, "\n", $i + 2))!==false)
$ti += 1;
if($ti)
$i = $ti;
continue;
}
if($ch == " " || $ch == "\r" || $ch == "\n" || $ch == "\t")
continue;
}
if($bInString && $ch == "\\" && !$bSlashed)
{
$bSlashed = true;
continue;
}
if($ch == "\"" || $ch == "'")
{
if($bInString)
{
if(!$bSlashed && $quote_ch == $ch)
{
$bInString = false;
continue;
}
}
else
{
$bInString = true;
$quote_ch = $ch;
continue;
}
}
$bSlashed = false;
if($bInString)
{
$string_tmp .= $ch;
continue;
}
$new_str .= $ch;
}
if($pos = mb_strpos($new_str, "("))
{
$func_name = mb_substr($new_str, 0, $pos + 1);
if(preg_match("/^(\\\$[A-Z_][A-Z0-9_]*)(\\s*=\\s*)/i", $func_name, $arMatch))
{
$var_name = $arMatch[1];
$func_name = mb_substr($func_name, mb_strlen($arMatch[0]));
}
else
{
$var_name = "";
}
$func_name = preg_replace("'\\\$GLOBALS\\[(\"|\\')(.+?)(\"|\\')\\]'s", "\$\\2", $func_name);
switch(mb_strtoupper($func_name))
{
case '$APPLICATION->INCLUDEFILE(':
$params = mb_substr($new_str, $pos + 1);
$arParams = PHPParser::GetParams($params);
$arIncludeParams = array();
if(preg_match("/^array\\(/i", $arParams[1]))
{
$arParams2 = PHPParser::GetParams(mb_substr($arParams[1], 6));
foreach($arParams2 as $el)
{
$p = mb_strpos($el, "=>");
$el_ind = PHPParser::ReplString(mb_substr($el, 0, $p), $arAllStr);
$el_val = mb_substr($el, $p + 2);
if(preg_match("/^array\\(/i", $el_val))
{
$res_ar = array();
$arParamsN = PHPParser::GetParams(mb_substr($el_val, 6));
foreach($arParamsN as $param)
{
$res_ar[] = PHPParser::ReplString($param, $arAllStr);
}
$arIncludeParams[$el_ind] = $res_ar;
}
else
{
$arIncludeParams[$el_ind] = PHPParser::ReplString($el_val, $arAllStr);
}
}
}
return array(
"SCRIPT_NAME" => PHPParser::ReplString($arParams[0], $arAllStr),
"PARAMS" => $arIncludeParams,
"VARIABLE" => $var_name,
);
}
}
return false;
}
public static function GetComponentParams($instruction, $arAllStr)
{
if ($pos = mb_strpos($instruction, "("))
{
$func_name = mb_substr($instruction, 0, $pos + 1);
if (preg_match("/(\\\$[A-Z_][A-Z0-9_]*)(\\s*=\\s*)/i", $func_name, $arMatch))
{
$var_name = $arMatch[1];
}
else
{
$var_name = "";
}
$params = mb_substr($instruction, $pos + 1);
$arParams = PHPParser::GetParams($params);
$arIncludeParams = array();
$arFuncParams = array();
PHPParser::GetParamsRec($arParams[2] ?? '', $arAllStr, $arIncludeParams);
PHPParser::GetParamsRec($arParams[4] ?? '', $arAllStr, $arFuncParams);
return array(
"COMPONENT_NAME" => PHPParser::ReplString($arParams[0] ?? '', $arAllStr),
"TEMPLATE_NAME" => PHPParser::ReplString($arParams[1] ?? '', $arAllStr),
"PARAMS" => $arIncludeParams,
"PARENT_COMP" => $arParams[3] ?? '',
"VARIABLE" => $var_name,
"FUNCTION_PARAMS" => $arFuncParams,
);
}
return array();
}
public static function ParseScript($scriptContent)
{
$arComponents = array();
$componentNumber = -1;
$bInComponent = false;
$bInPHP = false;
$bInString = false;
$quoteChar = "";
$bSlashed = false;
$string = false;
$instruction = "";
//mb_substr is catastrophic slow, so in UTF we use array of characters
$allChars = preg_split('//u', $scriptContent, -1, PREG_SPLIT_NO_EMPTY);
if ($allChars === false)
{
return [];
}
$scriptContentLength = mb_strlen($scriptContent);
$arAllStr = array();
$ind = -1;
while ($ind < $scriptContentLength - 1)
{
$ind++;
$ch = $allChars[$ind];
if ($bInPHP)
{
if (!$bInString)
{
if (!$bInComponent && $instruction <> '')
{
if (preg_match("#\\s*((\\\$[A-Z_][A-Z0-9_]*\\s*=)?\\s*\\\$APPLICATION->IncludeComponent\\s*\\()#is", $instruction, $arMatches))
{
$arAllStr = array();
$bInComponent = true;
$componentNumber++;
$instruction = $arMatches[1];
$arComponents[$componentNumber] = array(
"START" => ($ind - mb_strlen($arMatches[1])),
"END" => false,
"DATA" => array()
);
}
}
if ($string !== false)
{
if ($bInComponent)
{
$arAllStr[] = $string;
$instruction .= chr(1).(count($arAllStr) - 1).chr(2);
}
$string = false;
}
if ($ch == ";")
{
if ($bInComponent)
{
$bInComponent = false;
$arComponents[$componentNumber]["END"] = $ind + 1;
$arComponents[$componentNumber]["DATA"] = PHPParser::GetComponentParams(preg_replace("#[ \r\n\t]#", "", $instruction), $arAllStr);
}
$instruction = "";
continue;
}
if ($ch == "/" && $ind < $scriptContentLength - 2)
{
$nextChar = $allChars[$ind + 1];
if ($nextChar == "/")
{
$endPos = mb_strpos($scriptContent, "\n", $ind + 2);
if ($endPos === false)
$ind = $scriptContentLength - 1;
else
$ind = $endPos;
continue;
}
elseif ($nextChar == "*")
{
$endPos = mb_strpos($scriptContent, "*/", $ind + 2);
if ($endPos === false)
$ind = $scriptContentLength - 1;
else
$ind = $endPos + 1;
continue;
}
}
if ($ch == "\"" || $ch == "'")
{
$bInString = true;
$string = "";
$quoteChar = $ch;
continue;
}
if ($ch == "?" && $ind < $scriptContentLength - 2 && $allChars[$ind + 1] == ">")
{
$ind += 1;
if ($bInComponent)
{
$bInComponent = false;
$arComponents[$componentNumber]["END"] = $ind - 1;
$arComponents[$componentNumber]["DATA"] = PHPParser::GetComponentParams(preg_replace("#[ \r\n\t]#", "", $instruction), $arAllStr);
}
$instruction = "";
$bInPHP = false;
continue;
}
$instruction .= $ch;
if ($ch == " " || $ch == "\r" || $ch == "\n" || $ch == "\t")
continue;
}
else
{
if ($ch == "\\" && !$bSlashed)
{
$bSlashed = true;
continue;
}
if ($ch == $quoteChar && !$bSlashed)
{
$bInString = false;
continue;
}
$bSlashed = false;
$string .= $ch;
}
}
else
{
if ($ch == "<")
{
if ($ind < $scriptContentLength - 5 && $allChars[$ind + 1].$allChars[$ind + 2].$allChars[$ind + 3].$allChars[$ind + 4] == "?php")
{
$bInPHP = true;
$ind += 4;
}
elseif ($ind < $scriptContentLength - 2 && $allChars[$ind + 1] == "?")
{
$bInPHP = true;
$ind += 1;
}
}
}
}
return $arComponents;
}
// Components 2. Parse string and check if it is a component call. Return call params array
public static function CheckForComponent2($str)
{
if (str_starts_with($str, "<?php"))
$str = substr($str, 5);
else
$str = substr($str, 2);
$str = substr($str, 0, -2);
$bSlashed = false;
$bInString = false;
$arAllStr = array();
$new_str = "";
$string_tmp = "";
$quote_ch = "";
$i = -1;
$length = mb_strlen($str);
while ($i < $length - 1)
{
$i++;
$ch = mb_substr($str, $i, 1);
if (!$bInString)
{
if ($string_tmp != "")
{
$arAllStr[] = $string_tmp;
$string_tmp = "";
$new_str .= chr(1).(count($arAllStr) - 1).chr(2);
}
//comment
if ($ch == "/" && $i+1 < $length)
{
$ti = 0;
if (mb_substr($str, $i + 1, 1) == "*" && ($ti = mb_strpos($str, "*/", $i + 2)) !== false)
$ti += 1;
elseif (mb_substr($str, $i + 1, 1) == "/" && ($ti = mb_strpos($str, "\n", $i + 2)) !== false)
$ti += 0;
if ($ti)
$i = $ti;
continue;
}
if ($ch == " " || $ch == "\r" || $ch == "\n" || $ch == "\t")
continue;
}
if ($bInString && $ch == "\\" && !$bSlashed)
{
$bSlashed = true;
continue;
}
if ($ch == "\"" || $ch == "'")
{
if ($bInString)
{
if (!$bSlashed && $quote_ch == $ch)
{
$bInString = false;
continue;
}
}
else
{
$bInString = true;
$quote_ch = $ch;
continue;
}
}
$bSlashed = false;
if ($bInString)
{
$string_tmp .= $ch;
continue;
}
$new_str .= $ch;
}
if ($pos = mb_strpos($new_str, "("))
{
$func_name = mb_substr($new_str, 0, $pos + 1);
if (preg_match("/^(\\\$[A-Z_][A-Z0-9_]*)(\\s*=\\s*)/i", $func_name, $arMatch))
{
$var_name = $arMatch[1];
$func_name = mb_substr($func_name, mb_strlen($arMatch[0]));
}
else
{
$var_name = "";
}
self::$arAllStr = $arAllStr;
$func_name = preg_replace_callback("'\x01([0-9]+)\x02's", "PHPParser::getString", $func_name);
$isComponent2Begin = false;
$arIncludeComponentFunctionStrings = self::getComponentFunctionStrings();
foreach($arIncludeComponentFunctionStrings as $functionName)
{
$component2Begin = mb_strtoupper($functionName).'(';
if(mb_strtoupper($func_name) == $component2Begin)
{
$isComponent2Begin = true;
break;
}
}
if($isComponent2Begin)
{
$params = mb_substr($new_str, $pos + 1);
$arParams = PHPParser::GetParams($params);
$arIncludeParams = array();
$arFuncParams = array();
PHPParser::GetParamsRec($arParams[2], $arAllStr, $arIncludeParams);
PHPParser::GetParamsRec($arParams[4], $arAllStr, $arFuncParams);
return array(
"COMPONENT_NAME" => PHPParser::ReplString($arParams[0], $arAllStr),
"TEMPLATE_NAME" => PHPParser::ReplString($arParams[1], $arAllStr),
"PARAMS" => $arIncludeParams,
"PARENT_COMP" => $arParams[3],
"VARIABLE" => $var_name,
"FUNCTION_PARAMS" => $arFuncParams,
);
}
}
return false;
}
// Parse file and return all PHP blocks in array
public static function ParseFile($filesrc, $limit = false)
{
$arScripts = array();
$p = 0;
$nLen = mb_strlen($filesrc);
while(($p = mb_strpos($filesrc, "<?", $p))!==false)
{
$i = $p+2;
$bSlashed = false;
$bInString = false;
$quote_ch = "";
while($i < $nLen-1)
{
$i++;
$ch = mb_substr($filesrc, $i, 1);
if(!$bInString)
{
//comment
if($ch == "/" && $i+1 < $nLen)
{
//php tag
$posnext = mb_strpos($filesrc, "?>", $i);
if($posnext===false)
{
//no final tag
break;
}
$posnext += 2;
$ti = 0;
if(mb_substr($filesrc, $i + 1, 1) == "*" && ($ti = mb_strpos($filesrc, "*/", $i + 2))!==false)
$ti += 2;
elseif(mb_substr($filesrc, $i + 1, 1) == "/" && ($ti = mb_strpos($filesrc, "\n", $i + 2))!==false)
$ti += 1;
if($ti)
{
// begin ($i) and end ($ti) of comment
// проверим что раньше конец скрипта или конец комментария (например в одной строке "//comment ? >")
if($ti>$posnext && mb_substr($filesrc, $i + 1, 1) != "*")
{
// скрипт закончился раньше комментария
// вырежем скрипт
$arScripts[] = array($p, $posnext, mb_substr($filesrc, $p, $posnext - $p));
break;
}
else
{
// комментарий закончился раньше скрипта
$i = $ti - 1;
}
}
continue;
}
if($ch == "?" && $i+1 < $nLen && mb_substr($filesrc, $i + 1, 1) == ">")
{
$i = $i+2;
$arScripts[] = array($p, $i, mb_substr($filesrc, $p, $i - $p));
break;
}
}
if($bInString && $ch == "\\" && !$bSlashed)
{
$bSlashed = true;
continue;
}
if($ch == "\"" || $ch == "'")
{
if($bInString)
{
if(!$bSlashed && $quote_ch == $ch)
$bInString = false;
}
else
{
$bInString = true;
$quote_ch = $ch;
}
}
$bSlashed = false;
}
if($i >= $nLen)
break;
if ($limit && count($arScripts) == $limit)
break;
$p = $i;
}
return $arScripts;
}
public static function PreparePHP($str)
{
if(str_starts_with($str, "={") && str_ends_with($str, "}") && mb_strlen($str) > 3)
return substr($str, 2, -1);
return '"'.EscapePHPString($str).'"';
}
// Return PHP string of component call params
public static function ReturnPHPStr($arVals, $arParams)
{
$res = "";
$un = md5(uniqid(""));
$i=0;
foreach($arVals as $key=>$val)
{
$i++;
$comm = ($arParams[$key]["NAME"] <> ''?"$un|$i|// ".$arParams[$key]["NAME"]:"");
$res .= "\r\n\t\"".$key."\"\t=>\t";
if(is_array($val) && count($val)>1)
$res .= "array(".$comm."\r\n";
if(is_array($val) && count($val)>1)
{
$zn = '';
foreach($val as $p)
{
if($zn!='') $zn.=",\r\n";
$zn .= "\t\t\t\t\t".PHPParser::PreparePHP($p);
}
$res .= $zn."\r\n\t\t\t\t),";
}
elseif(is_array($val))
{
$res .= "array(".PHPParser::PreparePHP($val[0])."),".$comm;
}
else
$res .= PHPParser::PreparePHP($val).",".$comm;
}
$max = 0;
$lngth = array();
for($j=1; $j<=$i; $j++)
{
$p = mb_strpos($res, "$un|$j|");
$pn = mb_strrpos(mb_substr($res, 0, $p), "\n");
$l = ($p-$pn);
$lngth[$j] = $l;
if($max<$l)
$max = $l;
}
for($j=1; $j<=$i; $j++)
$res = str_replace($un."|$j|", str_repeat("\t", intval(($max-$lngth[$j]+7)/8)), $res);
return trim($res, " \t,\r\n");
}
public static function ReturnPHPStrRec($arVal, $level, $comm="")
{
$result = "";
$pref = str_repeat("\t", $level+1);
if (is_array($arVal))
{
$result .= "array(".(($level==1) ? $comm : "")."\n";
foreach ($arVal as $key => $value)
$result .= $pref."\t".((intval($key)."|" == $key."|") ? $key : PHPParser::PreparePHP($key))." => ".PHPParser::ReturnPHPStrRec($value, $level + 1);
$result .= $pref."),\n";
}
else
{
$result .= PHPParser::PreparePHP($arVal).",".(($level==1) ? $comm : "")."\n";
}
return $result;
}
// Components 2. Return PHP string of component call params
public static function ReturnPHPStr2($arVals, $arParams=array())
{
$res = "";
foreach($arVals as $key => $val)
{
$res .= "\t\t\"".EscapePHPString($key)."\" => ";
$comm = (!empty($arParams[$key]["NAME"]) ? "\t// ".$arParams[$key]["NAME"] : "");
$res .= PHPParser::ReturnPHPStrRec($val, 1, $comm);
}
return trim($res, " \t,\r\n");
}
public static function FindComponent($component_name, $filesrc, $src_line)
{
/* parse source file for PHP code */
$arComponents = PHPParser::ParseScript($filesrc);
/* identify the component by line number */
$arComponent = false;
for ($i = 0, $cnt = count($arComponents); $i < $cnt; $i++)
{
$nLineFrom = substr_count(mb_substr($filesrc, 0, $arComponents[$i]["START"]), "\n") + 1;
$nLineTo = substr_count(mb_substr($filesrc, 0, $arComponents[$i]["END"]), "\n") + 1;
if ($nLineFrom <= $src_line && $nLineTo >= $src_line)
{
if ($arComponents[$i]["DATA"]["COMPONENT_NAME"] == $component_name)
{
$arComponent = $arComponents[$i];
break;
}
}
if ($nLineTo > $src_line)
break;
}
return $arComponent;
}
public static function getPhpChunks($filesrc, $limit = false)
{
$chunks = array();
$chunk = '';
$php = false;
if (function_exists("token_get_all"))
{
foreach(token_get_all($filesrc) as $token)
{
if ($php)
{
if (is_array($token))
{
$chunk .= $token[1];
if ($token[0] === T_CLOSE_TAG)
{
$chunks[] = $chunk;
$chunk = '';
$php = false;
if ($limit && count($chunks) == $limit)
break;
}
}
else
{
$chunk .= $token;
}
}
else
{
if (is_array($token))
{
if ($token[0] === T_OPEN_TAG || $token[0] === T_OPEN_TAG_WITH_ECHO)
{
$chunk .= $token[1];
$php = true;
}
}
}
}
}
else
{
foreach (PHPParser::ParseFile($filesrc, $limit) as $chunk)
$chunks[] = $chunk[2];
}
if ($php && $chunk != '')
$chunks[] = $chunk;
return $chunks;
}
public static function getPageTitle($filesrc, $prolog = false)
{
if ($prolog === false)
{
$chunks = PHPParser::getPhpChunks($filesrc, 1);
if (!empty($chunks))
$prolog = &$chunks[0];
else
$prolog = '';
}
$title = false;
if ($prolog != '')
{
if(preg_match("/\\\$APPLICATION->SetTitle\\s*\\(\\s*\"(.*?)(?<!\\\\)\"\\s*\\);/is", $prolog, $regs))
$title = UnEscapePHPString($regs[1]);
elseif(preg_match("/\\\$APPLICATION->SetTitle\\s*\\(\\s*'(.*?)(?<!\\\\)'\\s*\\);/is", $prolog, $regs))
$title = UnEscapePHPString($regs[1]);
elseif(preg_match("'<title[^>]*>([^>]+)</title[^>]*>'i", $prolog, $regs))
$title = $regs[1];
}
if(!$title && preg_match("'<title[^>]*>([^>]+)</title[^>]*>'i", $filesrc, $regs))
$title = $regs[1];
return $title;
}
public static function getComponentFunctionStrings()
{
return array(
'$APPLICATION->IncludeComponent',
'EventMessageThemeCompiler::includeComponent'
);
}
}