From:
Operating system: WinXP HE SP2
PHP version: 5.3.8
Package: Unknown/Other Function
Bug Type: Bug
Bug description:different results from finfo_file and finfo_buffer
Description:
------------
different results from finfo_file and finfo_buffer
Scenario:
1. MS Excel-File stored in mySQL database LONGBLOB-Column
2. This binary data selected from database
3. This binary data stored to tempfile
4. mime-type sniffing done by finfo_buffer on binary data
> result: application/octet-stream
5. mime-type sniffing done by finfo_file on tempfile
> result: application/vnd.ms-excel
PROBLEM:
different result, dependent on used Fileinfo Function
Comment: The tempfile has NO extension like ".xls" that could be used as
hint for mimetype-sniffing
Test script:
---------------
<?PHP
...
$tempFileName = tempnam(sys_get_temp_dir(), "tempfile");
$tempFileHandle = fopen($tempFileName, "w");
fwrite($tempFileHandle, $attrib);
fclose($tempFileHandle);
// ensure that "extension=php_fileinfo.dll" is enabled in php.ini
$finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala
mimetype extension
$fileContentsTypeBuf = finfo_buffer($finfo, $attrib,
FILEINFO_MIME_TYPE);
$fileContentsType = finfo_file($finfo, $tempFileName);
finfo_close($finfo);
...
Expected result:
----------------
same result
"application/vnd.ms-excel" from finfo_buffer
"application/vnd.ms-excel" from finfo_file
Actual result:
--------------
different results
"application/octet-stream" from finfo_buffer
"application/vnd.ms-excel" from finfo_file
--
Edit bug report at https://bugs.php.net/bug.php?id=55691&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=55691&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=55691&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=55691&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=55691&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=55691&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=55691&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=55691&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=55691&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=55691&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=55691&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=55691&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=55691&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=55691&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=55691&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=55691&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=55691&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=55691&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=55691&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=55691&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=55691&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=55691&r=mysqlcfg
