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apache_request_headers() is a vendor-specific function - it got used
when present and alternative code paths were exercised otherwise.
These preserved certain "special" headers, e.g. Content-Type, only
inconsistently.
The function getallheaders() is an alias[1] for apache_request_headers()
on systems where the latter is present. Alternatively, there is a
polyfill (ralouphie/getallheaders) which is already installed in
mediawiki-vendor[2] (by virtue of guzzle).
Using getallheaders() exclusively, will make sure these "special"
headers are consistently available alongside their "regular"[3] peers
and helps MediaWiki code focus on its domain.
The dependency to ralouphie/getallheaders is made explicit in the same
version in which it is currently locked in mediawiki-vendor[4].
This surfaced because the deprecation warning for API POST requests
without a Content-Type header, introduced in
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| .. | ||
| BasicAccess | ||
| EntryPointTest.php | ||
| RequestFromGlobalsTest.php | ||