From: andreas dot streichardt at globalpark dot com Operating system: Linux PHP version: 5.3.0 PHP Bug Type: Filter related Bug description: dechunked filter broken when serving more than 8192 bytes in a chunk
Description: ------------ The dechunked filter is broken when the webserver is serving more than 8192 bytes in a chunk. When it reenters the function to read from the buffer the function thinks a new chunk is coming along although the chunk is not yet read up to the end and thinks the chunk is broken. I made a quick test and Apache seems to always serve 8192 bytes in a chunk. However lighttpd for example serves much more. So reading HTTP/1.1 streams with Transfer-Encoding: chunked is always broken on larger documents. The situation i had was that i were serving a larger wsdl over PHP (which serves documents with Transfer-Encoding: chunked). This is probably related to this bug (which i originally hit): http://bugs.php.net/bug.php?id=47021 The reason why this affects SOAP is because the default mechanism to fetch wsdl files changed in PHP 5.3. In PHP 5.2 it fetched documents using HTTP 1.0. Now it is HTTP 1.1. The attached patch fixes this. Reproduce code: --------------- $length=1600; $streams[]="data://text/plain,".dechex($length*10)."\r\n".str_repeat("1234567890",$length)."\r\n5\r\n00000\r\n0\r\n"; foreach ($streams as $name) { $fp = fopen($name, "r"); stream_filter_append($fp, "dechunk", STREAM_FILTER_READ); var_dump(stream_get_contents($fp)); fclose($fp); } Expected result: ---------------- Too much to post here and should be obvious Actual result: -------------- Some broken string (smaller than expected and thus wrong) -- Edit bug report at http://bugs.php.net/?id=49014&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=49014&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=49014&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=49014&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=49014&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49014&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=49014&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=49014&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=49014&r=needscript Try newer version: http://bugs.php.net/fix.php?id=49014&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=49014&r=support Expected behavior: http://bugs.php.net/fix.php?id=49014&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=49014&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=49014&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=49014&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49014&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=49014&r=dst IIS Stability: http://bugs.php.net/fix.php?id=49014&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=49014&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=49014&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=49014&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=49014&r=mysqlcfg
