Add inflation support for java.util.zip.Deflater in WP_Http_Encoding::compatible_gzinflate(). Fixes #18273

git-svn-id: http://svn.automattic.com/wordpress/trunk@18718 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
dd32 2011-09-19 14:43:43 +00:00
parent 5eef6313ef
commit f40bc45b6f
1 changed files with 12 additions and 3 deletions

View File

@ -1636,6 +1636,8 @@ class WP_Http_Encoding {
* @return string|bool False on failure. * @return string|bool False on failure.
*/ */
function compatible_gzinflate($gzData) { function compatible_gzinflate($gzData) {
// Compressed data might contain a full header, if so strip it for gzinflate()
if ( substr($gzData, 0, 3) == "\x1f\x8b\x08" ) { if ( substr($gzData, 0, 3) == "\x1f\x8b\x08" ) {
$i = 10; $i = 10;
$flg = ord( substr($gzData, 3, 1) ); $flg = ord( substr($gzData, 3, 1) );
@ -1651,10 +1653,17 @@ class WP_Http_Encoding {
if ( $flg & 2 ) if ( $flg & 2 )
$i = $i + 2; $i = $i + 2;
} }
return gzinflate( substr($gzData, $i, -8) ); $decompressed = @gzinflate( substr($gzData, $i, -8) );
} else { if ( false !== $decompressed )
return false; return $decompressed;
} }
// Compressed data from java.util.zip.Deflater amongst others.
$decompressed = @gzinflate( substr($gzData, 2) );
if ( false !== $decompressed )
return $decompressed;
return false;
} }
/** /**