From: jose dot rob dot jr at gmail dot com Operating system: PHP version: 5.2.9 PHP Bug Type: Feature/Change Request Bug description: Add support for forcing DOM to validate a DOMDocument with a DTD
Description: ------------ I need to validate XML files before loading them, then I created a DTD and hosted it. With python I can distribute the DTD file with the program and validate the XML file locally. A python example: --- from lxml import etree from StringIO import StringIO xmlstart="""<?xml version="1.0" encoding="utf8"?> <!DOCTYPE example PUBLIC '-//Example//Example DTD' 'http://example.com/mydtd.dtd'>""" xmlok=xmlstart+"<example>The XML file</example>"; xmlinvalid=xmlstart+"<example><a>test</a>The XML file</example>"; dtddata="<!ELEMENT example (#PCDATA) >"; f=StringIO(dtddata); dtd=etree.DTD(f); print "Valid XML:"; xml1=etree.XML(xmlok); validation=dtd.validate(xml1); print validation; print dtd.error_log.filter_from_errors(); print "Invalid XML:"; xml2=etree.XML(xmlinvalid); validation=dtd.validate(xml2); print validation; print dtd.error_log.filter_from_errors(); ---- The only way I find to port this stript is using DOMDocument::validate() but this method will get the DTD from http://example.com/mydtd.dtd and be slower, generate traffic, and fail when example.com is off-line... I suggest adding an attribute like DOMDocument::validate($source) where $source is a string with DTD source to avoid situations like this... Reproduce code: --------------- <?php $xmlstart=<<<XML <?xml version="1.0" encoding="utf8"?> <!DOCTYPE example PUBLIC '-//Example//Example DTD' 'http://example.com/mydtd.dtd'> XML; $xmlok=$xmlstart."<example>The XML file</example>"; $xmlinvalid=$xmlstart."<example><a>test</a>The XML file</example>"; $dtddata="<!ELEMENT example (#PCDATA) >"; print "<h1>Valid XML:</h1>"; $xml1=DOMDocument::loadXML($xmlok); $validation=(int)$xml1->validate($dtddata); //Example that would work print "<p><b>$validation</b></p>"; print "<h1>Invalid XML:</h1>"; $xml1=DOMDocument::loadXML($xmlinvalid); $validation=(int)$xml1->validate($dtddata); //Example that would work print "<p><b>$validation</b></p>"; ?> Expected result: ---------------- Valid XML: 1 Invalid XML: Warning: DOMDocument::validate() [function.DOMDocument-validate]: Element example was declared #PCDATA but contains non text nodes in /script/path/xml.php on line 19 Warning: DOMDocument::validate() [function.DOMDocument-validate]: No declaration for element a in /script/path/xml.php on line 19 0 Actual result: -------------- When no argument is passed to validate and DTD server is off-line: Valid XML: Warning: DOMDocument::validate(http://example.com/mydtd.dtd) [function.DOMDocument-validate]: failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /script/path/xml.php on line 14 Warning: DOMDocument::validate() [function.DOMDocument-validate]: I/O warning : failed to load external entity "http://example.com/mydtd.dtd"; in /script/path/xml.php on line 14 Warning: DOMDocument::validate() [function.DOMDocument-validate]: Could not load the external subset "http://example.com/mydtd.dtd"; in /script/path/xml.php on line 14 0 Invalid XML: Warning: DOMDocument::validate(http://example.com/mydtd.dtd) [function.DOMDocument-validate]: failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /script/path/xml.php on line 19 Warning: DOMDocument::validate() [function.DOMDocument-validate]: I/O warning : failed to load external entity "http://example.com/mydtd.dtd"; in /script/path/xml.php on line 19 Warning: DOMDocument::validate() [function.DOMDocument-validate]: Could not load the external subset "http://example.com/mydtd.dtd"; in /script/path/xml.php on line 19 0 -- Edit bug report at http://bugs.php.net/?id=48080&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=48080&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=48080&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=48080&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=48080&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=48080&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=48080&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=48080&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=48080&r=needscript Try newer version: http://bugs.php.net/fix.php?id=48080&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=48080&r=support Expected behavior: http://bugs.php.net/fix.php?id=48080&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=48080&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=48080&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=48080&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=48080&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=48080&r=dst IIS Stability: http://bugs.php.net/fix.php?id=48080&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=48080&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=48080&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=48080&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=48080&r=mysqlcfg
