[PATCH] Bug#42718 (FILTER_UNSAFE_RAW not applied when configured as default filter, even with flags)

Hi, Here is a patch to fix bug #42718: http://bugs.php.net/?id=42718&edit=1 The "unsafe_raw" filter is not applied when configured as default filter. I found that the php_sapi_filter() internal function in ext/filter/filter.c intentionally bypass this filter: if (!(IF_G(default_filter) == FILTER_UNSAFE_RAW)){ (apply default filter) } else [...] The unsafe_raw filter does nothing by default, but it can "optionally strip or encode special characters", and it is the only filter which is able to do that without doing any other filtering. I suggest to not bypass the unsafe_raw filter when default_filter_flags is different than 0 (bug42718.patch attached). I also wrote a testcase for this bug: bug42718.phpt. And an other testcase (052.phpt) to check if the patch does not modify the behavior of the php_sapi_filter() function: - Apply filter, only if filter will do something (unsafe_raw with no flags do nothing) - Else, fallback to magic_quotes_gpc if enabled Regards