# PHP build-in HTTP server and the HEAD method - Thread: https://externals.io/message/62952 - Original archive: https://news-web.php.net/php.internals/62952 - Started by Ivan Enderlin @ Hoa on 2012-09-12T08:54:53+00:00 - Messages: 5 - Reply by email to internals@lists.php.net - More for agents: search with https://externals.io/search.md?q={query} · JSON API at https://externals.io/api · documentation at https://externals.io/llms.txt --- ## #62952 — Ivan Enderlin @ Hoa — 2012-09-12T08:54:53+00:00 URL: https://externals.io/message/62952#62952 Hello, It is probably me but it seems like the build-in HTTP server does not well support the HEAD method. Here is my following test case. First, the foo.php file: /dev/null 2>&1 & $ # Test with POST. $ curl -v -X POST 127.0.0.1:8888 * About to connect() to 127.0.0.1 port 8888 (#0) * Trying 127.0.0.1... * connected * Connected to 127.0.0.1 (127.0.0.1) port 8888 (#0) > POST / HTTP/1.1 > User-Agent: curl/7.24.0 (...) libcurl/7.24.0 OpenSSL/0.9.8r zlib/1.2.5 > Host: 127.0.0.1:8888 > Accept: */* > < HTTP/1.1 200 OK < Host: 127.0.0.1:8888 < Connection: close < X-Powered-By: PHP/5.5.0-dev < Content-type: text/html < string(4) "POST" * Closing connection #0 $ # It works, cool. $ # Now, test with HEAD. $ curl -v -X HEAD 127.0.0.1:8888 * About to connect() to 127.0.0.1 port 8888 (#0) * Trying 127.0.0.1... * connected * Connected to 127.0.0.1 (127.0.0.1) port 8888 (#0) > HEAD / HTTP/1.1 > User-Agent: curl/7.24.0 (...) libcurl/7.24.0 OpenSSL/0.9.8r zlib/1.2.5 > Host: 127.0.0.1:8888 > Accept: */* > < HTTP/1.1 200 OK < Host: 127.0.0.1:8888 < Connection: close < X-Powered-By: PHP/5.5.0-dev < Content-type: text/html < * Closing connection #0 I have to admit that I don't understand, even by looking at the source code. Thoughts? Thanks. -- Ivan Enderlin Developer of Hoa http://hoa.42/ or http://hoa-project.net/ PhD. student at DISC/Femto-ST (Vesontio) and INRIA (Cassis) http://disc.univ-fcomte.fr/ and http://www.inria.fr/ Member of HTML and WebApps Working Group of W3C http://w3.org/ --- ## #62953 — Damien Tournoud — 2012-09-12T09:15:38+00:00 URL: https://externals.io/message/62952#62953 · In reply to: #62952 On Wed, Sep 12, 2012 at 10:54 AM, Ivan Enderlin @ Hoa wrote: > Hello, > > It is probably me but it seems like the build-in HTTP server does not well > support the HEAD method. Here is my following test case. First, the foo.php > file: > > > var_dump($_SERVER['REQUEST_METHOD']); By definition, a HEAD request MUST NOT return a message-body. This works as expected: Here is how it works: main/SAPI.c has code that set SG(request_info).headers_only = 1 for HEAD requests, and as a consequence php_request_shutdown() does not flush the output buffer (if any) to the client. You can force a body to be sent (but that's likely not going to work with every SAPI) by not having an output buffer or by calling `ob_end_flush()` yourself. Damien --- ## #62955 — Sebastian Krebs — 2012-09-12T09:20:54+00:00 URL: https://externals.io/message/62952#62955 · In reply to: #62952 Hi, As far as I can see everything works as expected: Because HEAD-requests should not send any content, you don't get any. Regards, Sebastian 2012/9/12 Ivan Enderlin @ Hoa > Hello, > > It is probably me but it seems like the build-in HTTP server does not well > support the HEAD method. Here is my following test case. First, the foo.php > file: > > > var_dump($_SERVER['REQUEST_**METHOD']); > > > And then: > > $ # Run the server. > $ php -S 127.0.0.1:8888 -t . foo.php > /dev/null 2>&1 & > > $ # Test with POST. > $ curl -v -X POST 127.0.0.1:8888 > * About to connect() to 127.0.0.1 port 8888 (#0) > * Trying 127.0.0.1... > * connected > * Connected to 127.0.0.1 (127.0.0.1) port 8888 (#0) > > […] > zlib/1.2.5 > > […] > < HTTP/1.1 200 OK > < Host: 127.0.0.1:8888 > < Connection: close > < X-Powered-By: PHP/5.5.0-dev > < Content-type: text/html > < > string(4) "POST" > * Closing connection #0 > $ # It works, cool. > > $ # Now, test with HEAD. > $ curl -v -X HEAD 127.0.0.1:8888 > * About to connect() to 127.0.0.1 port 8888 (#0) > * Trying 127.0.0.1... > * connected > * Connected to 127.0.0.1 (127.0.0.1) port 8888 (#0) > > […] > zlib/1.2.5 > > […] > < HTTP/1.1 200 OK > < Host: 127.0.0.1:8888 > < Connection: close > < X-Powered-By: PHP/5.5.0-dev > < Content-type: text/html > < > * Closing connection #0 > > > I have to admit that I don't understand, even by looking at the source > code. > > Thoughts? > Thanks. > > -- > Ivan Enderlin > Developer of Hoa > http://hoa.42/ or http://hoa-project.net/ > > PhD. student at DISC/Femto-ST (Vesontio) and INRIA (Cassis) > http://disc.univ-fcomte.fr/ and http://www.inria.fr/ > > Member of HTML and WebApps Working Group of W3C > http://w3.org/ > > -- github.com/KingCrunch --- ## #62956 — Ivan Enderlin @ Hoa — 2012-09-12T11:44:45+00:00 URL: https://externals.io/message/62952#62956 · In reply to: #62953 > On Wed, Sep 12, 2012 at 10:54 AM, Ivan Enderlin @ Hoa > wrote: > > […] > By definition, a HEAD request MUST NOT return a message-body. Oh grrr, I feel stupid now ;-). I forget this. > This works as expected: > > header("X-Request-Method: " . $_SERVER["REQUEST_METHOD"]); > ?> > > Here is how it works: main/SAPI.c has code that set > SG(request_info).headers_only = 1 for HEAD requests, and as a > consequence php_request_shutdown() does not flush the output buffer > (if any) to the client. Ok. > You can force a body to be sent (but that's > likely not going to work with every SAPI) by not having an output > buffer or by calling `ob_end_flush()` yourself. Yes but that was not my goal. Thank you for your reply :-). -- Ivan Enderlin Developer of Hoa http://hoa.42/ or http://hoa-project.net/ PhD. student at DISC/Femto-ST (Vesontio) and INRIA (Cassis) http://disc.univ-fcomte.fr/ and http://www.inria.fr/ Member of HTML and WebApps Working Group of W3C http://w3.org/ --- ## #62957 — Ivan Enderlin @ Hoa — 2012-09-12T11:45:27+00:00 URL: https://externals.io/message/62952#62957 · In reply to: #62955 > Hi, Hi, > > As far as I can see everything works as expected: Because HEAD-requests > should not send any content, you don't get any. Yup, as Damien said. Thank you. -- Ivan Enderlin Developer of Hoa http://hoa.42/ or http://hoa-project.net/ PhD. student at DISC/Femto-ST (Vesontio) and INRIA (Cassis) http://disc.univ-fcomte.fr/ and http://www.inria.fr/ Member of HTML and WebApps Working Group of W3C http://w3.org/