Bug #63189 [NEW]: External DTDs are not processed

From: vl dot homutov at gmail dot com Operating system: Linux PHP version: 5.4.7 Package: *XML functions Bug Type: Bug Bug description:External DTDs are not processed Description: ------------ PHP's xml_parse() ignores external DTD specified in the XML file and thus can't parse the file if it has unknown entities (defined in the DTD mentioned). Test script: --------------- #!/usr/bin/php <?php $xml_ext_dtd=<<<EOXML <?xml version="1.0"?> <!DOCTYPE mytag SYSTEM "./mytag.dtd"> <mytag><elem>one</elem><elem>two</elem><elem>&custom;</elem>/mytag> EOXML; $xml_int_dtd=<<<EOXML <?xml version="1.0"?> <!DOCTYPE mytag [ <!ENTITY custom SYSTEM "file.txt"> ]> <mytag><elem>one</elem><elem>two</elem><elem>&custom;</elem>/mytag> EOXML; function externalEntityHandler($parser, $name, $base, $systemId, $publicId) { echo "PROCESS EXTERNAL REFERENCE(file=$systemId)\n"; return true; } function characterDataHandler($parser, $data) { echo "CDATA found: '$data'\n"; } function xerr($parser) { $out = "XML parser error:"; $out.=xml_error_string(xml_get_error_code($parser)); $out.="\n"; return $out; } echo "This works OK - parse xml1:\n$xml_int_dtd\n"; echo "---------------------------------------\n"; $xml_parser = xml_parser_create(); xml_set_character_data_handler($xml_parser, "characterDataHandler"); xml_set_external_entity_ref_handler($xml_parser, "externalEntityHandler"); xml_parse($xml_parser, $xml_int_dtd) or die(xerr($xml_parser)); echo "\nThis FAILS - parse xml2:\n$xml_ext_dtd\n"; echo "---------------------------------------\n"; $xml_parser = xml_parser_create(); xml_set_character_data_handler($xml_parser, "characterDataHandler"); xml_set_external_entity_ref_handler($xml_parser, "externalEntityHandler"); $rv = xml_parse($xml_parser, $xml_ext_dtd); if (!$rv) echo xerr($xml_parser); echo "file 'mytag.dtd' is:\n".file_get_contents("./mytag.dtd"); ?> Expected result: ---------------- This works OK - parse xml1: <?xml version="1.0"?> <!DOCTYPE mytag [ <!ENTITY custom SYSTEM "file.txt"> ]> <mytag><elem>one</elem><elem>two</elem><elem>&custom;</elem>/mytag> --------------------------------------- CDATA found: 'one' CDATA found: 'two' PROCESS EXTERNAL REFERENCE(file=file.txt) Actual result: -------------- This FAILS - parse xml2: <?xml version="1.0"?> <!DOCTYPE mytag SYSTEM "./mytag.dtd"> <mytag><elem>one</elem><elem>two</elem><elem>&custom;</elem>/mytag> --------------------------------------- CDATA found: 'one' CDATA found: 'two' XML parser error:Undeclared entity warning file 'mytag.dtd' is: <!ENTITY custom SYSTEM "file.txt"> -- Edit bug report at https://bugs.php.net/bug.php?id=63189&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=63189&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=63189&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=63189&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=63189&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=63189&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=63189&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=63189&r=needscript Try newer version: https://bugs.php.net/fix.php?id=63189&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=63189&r=support Expected behavior: https://bugs.php.net/fix.php?id=63189&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=63189&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=63189&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=63189&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63189&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=63189&r=dst IIS Stability: https://bugs.php.net/fix.php?id=63189&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=63189&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=63189&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=63189&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=63189&r=mysqlcfg