As XMLReader only exposes a single class, and the property handlers are
statically set, we don't need to store the pointer to the property
handler table inside the object.
This simplifies the code and reduces the memory required for XMLReader.
This also fixes skipped tests due to different naming "zend-test"
instead of "zend_test" and "PDO" instead of "pdo":
- ext/dom/tests/libxml_global_state_entity_loader_bypass.phpt
- ext/simplexml/tests/libxml_global_state_entity_loader_bypass.phpt
- ext/xmlreader/tests/libxml_global_state_entity_loader_bypass.phpt
- ext/zend_test/tests/observer_sqlite_create_function.phpt
EXTENSIONS section is used for the Windows build to load the non-static
extensions.
Closes GH-13276
It looks like the config.w32 uses CHECK_HEADER_ADD_INCLUDE to add the include
path to libxml into the search path.
That doesn't happen in zend-test.
To add to the Windows trouble, libxml is statically linked in, ext/libxml can
only be built statically but ext/zend-test can be built both statically and
dynamically.
So the regression tests won't work in all possible configurations anyway on Windows.
All of this is no problem on Linux because it just uses dynamic linking
and pkg-config, without any magic.
Signed-off-by: Ben Ramsey <ramsey@php.net>
Fixes GHSA-3qrf-m4j2-pcrr.
To parse a document with libxml2, you first need to create a parsing context.
The parsing context contains parsing options (e.g. XML_NOENT to substitute
entities) that the application (in this case PHP) can set.
Unfortunately, libxml2 also supports providing default set options.
For example, if you call xmlSubstituteEntitiesDefault(1) then the XML_NOENT
option will be added to the parsing options every time you create a parsing
context **even if the application never requested XML_NOENT**.
Third party extensions can override these globals, in particular the
substitute entity global. This causes entity substitution to be
unexpectedly active.
Fix it by setting the parsing options to a sane known value.
For API calls that depend on global state we introduce
PHP_LIBXML_SANITIZE_GLOBALS() and PHP_LIBXML_RESTORE_GLOBALS().
For other APIs that work directly with a context we introduce
php_libxml_sanitize_parse_ctxt_options().
Fix it by extending the array sizes by one character. As the input is
limited to the maximum path length, there will always be place to append
the slash. As the php_check_specific_open_basedir() simply uses the
strings to compare against each other, no new failures related to too
long paths are introduced.
We'll let the DOM and XML case handle a potentially too long path in the
library code.
This reverts commit 94ee4f9834.
The commit was a bit too late to be included in PHP 8.2 RC1. Given it's a massive ABI break, we decide to postpone the change to PHP 8.3.
The current error message is incorrect -- the problem here is not
that the property is invalid, but that these methods are unusable
prior to loading data, same as read().
