[CORS Proxy] Support chunked encoding when running in Apache/Nginx/etc #2114
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Adds support for `transfer-encoding: chunked` on Apache, Nginx, and other web servers. #2077 added support for `transfer-encoding: chunked` in a way that works on a local PHP dev server. The proxy manually chunks the output bytes and outputs each chunk's header, separator, body, and trailer. However, it doesn't work on playground.wordpress.net because the web server there handles the chunked encoding on its own. The bytes echoed by cors-proxy.php are treated as body bytes, which messes up the response body. This PR restricts the manual chunking to a local CLI dev server. ## Testing instructions Run cors-proxy.php in Apache or so and confirm that requesting resources served with chunked encoding works with this patch but not without it. One such URL is https://adamadam.blog/feed/.
adamziel
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[Type] Bug
adamziel
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adamziel
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adamziel
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| // Only send chunked transfer encoding footer if we're using chunked encoding. | ||
| // We need to manually send the footer when running in the PHP built-in server | ||
| // because, unlike apache or nginx, it won't handle that for us. | ||
| if ($is_chunked_response && php_sapi_name() === 'cli-server') { |
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I meant to add this under the code review response...
nit: The terms of this condition are used in multiple places. Maybe it would be good to capture it in a function like should_send_as_chunked_response().
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Adds support for
transfer-encoding: chunkedon Apache, Nginx, and other web servers.#2077 added support for
transfer-encoding: chunkedin a way that works on a local PHP dev server. The proxy manually chunks the output bytes and outputs each chunk's header, separator, body, and trailer.However, it doesn't work on playground.wordpress.net because the web server there handles the chunked encoding on its own. The bytes echoed by cors-proxy.php are treated as body bytes, which messes up the response body.
This PR restricts the manual chunking to a local CLI dev server.
Testing instructions
Run cors-proxy.php in Apache or so and confirm that requesting resources served with chunked encoding works with this patch but not without it. One such URL is https://adamadam.blog/feed/.