Since long the default PHP charset is UTF-8, however the Windows part is
out of step with this important point. The current implementation in PHP
doesn't technically permit to handle UTF-8 filepath and several other
things. Till now, only the ANSI compatible APIs are being used. Here is more
about it
https://msdn.microsoft.com/en-us/library/windows/desktop/dd317752%28v=vs.85%29.aspx
The patch fixes not only issues with multibyte filenames under
incompatible codepages, but indirectly also issues with some other multibyte
encodings like BIG5, Shift-JIS, etc. by providing a clean way to access
filenames in UTF-8. Below is a small list of issues from the bug tracker,
that are getting fixed:
https://bugs.php.net/63401https://bugs.php.net/41199https://bugs.php.net/50203https://bugs.php.net/71509https://bugs.php.net/64699https://bugs.php.net/64506https://bugs.php.net/30195https://bugs.php.net/65358https://bugs.php.net/61315https://bugs.php.net/70943https://bugs.php.net/70903https://bugs.php.net/63593https://bugs.php.net/54977https://bugs.php.net/54028https://bugs.php.net/43148https://bugs.php.net/30730https://bugs.php.net/33350https://bugs.php.net/35300https://bugs.php.net/46990https://bugs.php.net/61309https://bugs.php.net/69333https://bugs.php.net/45517https://bugs.php.net/70551https://bugs.php.net/50197https://bugs.php.net/72200https://bugs.php.net/37672
Yet more related tickets can for sure be found - on bugs.php.net, Stackoverflow
and Github. Some of the bugs are pretty recent, some descend to early
2000th, but the user comments in there last even till today. Just for example,
bug #30195 was opened in 2004, the latest comment in there was made in 2014. It
is certain, that these bugs descend not only to pure PHP use cases, but get also
redirected from the popular PHP based projects. Given the modern systems (and
those supported by PHP) are always based on NTFS, there is no excuse to keep
these issues unresolved.
The internalization approach on Windows is in many ways different from
UNIX and Linux, while it supports and is based on Unicode. It depends on the
current system code page, APIs used and exact kind how the binary was compiled
The locale doesn't affect the way Unicode or ANSI API work. PHP in particular
is being compiled without _UNICODE defined and this is conditioned by the
way we handle strings. Here is more about it
https://msdn.microsoft.com/en-us/library/tsbaswba.aspx
However, with any system code page ANSI functions automatically convert
paths to UTF-16. Paths in some encodings incompatible with the
current system code page, won't work correctly with ANSI APIs. PHP
till now only uses the ANSI Windows APIs.
For example, on a system with the current code page 1252, the paths
in cp1252 are supported and transparently converted to UTF-16 by the
ANSI functions. Once one wants to handle a filepath encoded with cp932 on
that particular system, an ANSI or a POSIX compatible function used in
PHP will produce an erroneous result. When trying to convert that cp932 path
to UTF-8 and passing to the ANSI functions, an ANSI function would
likely interpret the UTF-8 string as some string in the current code page and
create a filepath that represents every single byte of the UTF-8 string.
These behaviors are not only broken but also disregard the documented
INI settings.
This patch solves the issies with the multibyte paths on Windows by
intelligently enforcing the usage of the Unicode aware APIs. For
functions expect Unicode (fe CreateFileW, FindFirstFileW, etc.), arguments
will be converted to UTF-16 wide chars. For functions returning Unicode
aware data (fe GetCurrentDirectoryW, etc.), resulting wide string is
converted back to char's depending on the current PHP charset settings,
either to the current ANSI codepage (this is the behavior prior to this patch)
or to UTF-8 (the default behavior).
In a particular case, users might have to explicitly set
internal_encoding or default_charset, if filenames in ANSI codepage are
necessary. Current tests show no regressions and witness that this will be an
exotic case, the current default UTF-8 encoding is compatible with any
supported system. The dependency libraries are long switching to Unicode APIs,
so some tests were also added for extensions not directly related to streams.
At large, the patch brings over 150 related tests into the core. Those target
and was run on various environments with European, Asian, etc. codepages.
General PHP frameworks was tested and showed no regressions.
The impact on the current C code base is low, the most places affected
are the Windows only places in the three files tsrm_win32.c, zend_virtual_cwd.c
and plain_wrapper.c. The actual implementation of the most of the wide
char supporting functionality is in win32/ioutil.* and win32/codepage.*,
several low level functionsare extended in place to avoid reimplementation for
now. No performance impact was sighted. As previously mentioned, the ANSI APIs
used prior the patch perform Unicode conversions internally. Using the
Unicode APIs directly while doing custom conversions just retains the status
quo. The ways to optimize it are open (fe. by implementing caching for the
strings converted to wide variants).
The long path implementation is user transparent. If a path exceeds the
length of _MAX_PATH, it'll be automatically prefixed with \\?\. The MAXPATHLEN
is set to 2048 bytes.
Appreciation to Pierre Joye, Matt Ficken, @algo13 and others for tips, ideas
and testing.
Thanks.
These are either in debug code (fix them), commented out (drop
them) or in dead compatibility macros (drop them).
One usage was in php_stream_get_from_zval(), which we have not used
since at least PHP 5.2 and, judging from the fact that nobody
complained about it causing compile errors in PHP 7, nobody else
uses it either, so drop it.
There are still remaining uses in mysqli embedded and odbc birdstep.
These probably need to be dropped outright.
* PHP-5.6.18:
fix tests
fix NEWS
Update NEWS
update NEWS
Fixed bug #71488: Stack overflow when decompressing tar archives
update NEWS
add missing headers for SIZE_MAX
backport the escapeshell* functions hardening branch
add tests
Fix bug #71459 - Integer overflow in iptcembed()
prepare 5.6.18RC1
Fix test when run with openssl < 1.0.2 (reorder so no more SSLv2 message) Fix skip message to work
improve fix for bug #71201
Fixed bug #71323 - Output of stream_get_meta_data can be falsified by its input
Fix bug #71391: NULL Pointer Dereference in phar_tar_setupmetadata()
Fixed bug #71331 - Uninitialized pointer in phar_make_dirstream()
Fix bug #71335: Type Confusion in WDDX Packet Deserialization
Fix bug #71354 - remove UMR when size is 0
Conflicts:
configure.in
ext/phar/dirstream.c
ext/phar/phar_object.c
ext/phar/tar.c
ext/standard/exec.c
ext/standard/iptc.c
ext/standard/math.c
ext/standard/streamsfuncs.c
ext/wddx/wddx.c
main/php_version.h
main/streams/memory.c
* PHP-5.5.32:
Fixed bug #71488: Stack overflow when decompressing tar archives
update NEWS
add missing headers for SIZE_MAX
backport the escapeshell* functions hardening branch
add tests
Fix bug #71459 - Integer overflow in iptcembed()
Fixed bug #71323 - Output of stream_get_meta_data can be falsified by its input
Fix bug #71391: NULL Pointer Dereference in phar_tar_setupmetadata()
Fix bug #71335: Type Confusion in WDDX Packet Deserialization
Fix bug #71354 - remove UMR when size is 0
PHP_VERSION_ID
PHP_API_VERSION
ZEND_MODULE_API_NO
PHP_MAJOR_VERSION, PHP_MINOR_VERSION
ZEND_ENGINE_2
I've left litespeed alone, as it seems to genuinely maintain support
for many PHP versions.
This macro is not used but it's wrong as zend_fetch_resource
accepts only 3 args and just one res index. So obviously
we need to use zend_fetch_resource2 here.
of course we can try to refactor the current flow to make this error can
be catched safly.
but as 7.0.0 is releasing, I don't think a refactor is safe now. and
actually I don't see any gain to make this catchable.
so let's keep this be consistent with 5.6 and safe for now
* PHP-7.0:
update NEWS
fix decrement_function regarding bug #70863
Fixed bug #70863 Incorect logic to increment_function for proxy objects
no more dev ZEND_VERSION
Add support for IPV6_V6ONLY on sockets
Conflicts:
Zend/zend.h
Define __STDC_LIMITS_MACROS and __STDC_CONSTANT_MACROS
prior to including stdint.h for the first time so that it
defines the INT64_MAX / INT64_C / etc... macros we use elsewhere
when building for C++ (C already gets these).
If SG(request_info).request_body can't be completely written (e.g. due to a
full drive), only parts of the POST data will be available. This patch changes
this, so that SG(request_info).request_body will be reset in this case, and a
warning will be thrown.
spprintf now always creates a buffer and strpprintf always returns
a zend_string. Previously, if the result of the format happened to
be empty, the spprintf buffer would be set to NULL and strpprintf
would return NULL.
Squashed commit of the following:
commit d96eab8d79
Author: Francois Laupretre <francois@tekwire.net>
Date: Fri Jun 26 01:23:31 2015 +0200
Use the new 'ZSTR' macros in the rest of the code.
Does not change anything to the generated code (thanks to compat macros) but cleaner.
commit b352643910
Author: Francois Laupretre <francois@tekwire.net>
Date: Thu Jun 25 13:45:06 2015 +0200
Improve zend_string API
Add missing methods
Previously fcgi_request defined in main/fastcgi.h might be treated differently in different files, because of different behavior of #ifdef TCP_NODELAY. This leaded to stack memory corruption and unpredictable crashes.
