[pull] master from php:master#164
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Looking at the Lexbor implementation, the `lxb_url_parser_t.idna` field is private and must not be touched from the outside. Lexbor expects to be able to manage it by itself when destroying a parser object. Fix the issue by putting the `lxb_unicode_idna_t` into a thread-local variable that we own. This also avoids one level of dynamic allocation. The same is done for the mraw.
Calling `lexbor_mraw_clean()` after a specific number of parses will destroy the data for any live `Uri\WhatWg\Url` objects, effectively resulting in a use-after-free. Fix the issue by removing the periodic `lexbor_mraw_clean()` call. Instead we implement `php_uri_parser_whatwg_free()`. This also requires to move the destruction of the lexbor structures from RSHUTDOWN to POST_ZEND_DEACTIVATE to prevent a use-after-free in `php_uri_parser_whatwg_free()` since otherwise the mraw would already have been destroyed.
….c (#19600) There were two issues with the previous implementation of normalization: - `php_raw_url_decode_ex()` would be used to modify a string with RC >1. - The return value of `php_raw_url_decode_ex()` was not used, resulting in incorrect string lengths when percent-encoded characters are decoded. Additionally there was a bogus assertion that verified that strings returned from the read handlers are RC =2, which was not the case for the `parse_url`-based parser when repeatedly retrieving a component even without normalization happening. Remove that assertion, since its usefulness is questionable. Any obvious data type issues with read handlers should be detectable when testing during development.
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