net: http: server: Enable HTTP1.0 request compatibility#101631
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fabiobaltieri merged 1 commit intozephyrproject-rtos:mainfrom Jan 8, 2026
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yvesll
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Looks good, just couple of coding style nits.
Per RFC9112 (REF zephyrproject-rtos#1), HTTP/1.1 server is expected to be backward compatible with HTTP1.0 request. Mainly HTTP/1.0 does not support 1) Transfer Encoding : chunked 2) KeepAlives So, this change will identify the HTTP protocol version in the request and respond accordingly. REF# 1) https://httpwg.org/specs/rfc9112.html Tested: 1) Verified that HTTP/1.1 requests are served as usual i.e. with chunked transfer encoding and the connection is a Keep Alive connection Query exits after 10s, indicating that the client connection to the HTTP server is a Keep Alive. ``` time printf "GET /telem HTTP/1.1\r\nHost: 192.0.3.11\r\n\r\n" | nc 192.0.3.11 80 real 0m10.185s <- Indicates connection was kept active for 10s user 0m0.023s sys 0m0.023s ``` `Transfer Encoding : chunked` header and chunked encoding metadata (chunk size hex bytes, crlf, termination byte 0) are present in the response. ``` HTTP/1.1 200 OK Transfer-Encoding: chunked <- Chunked encoding header Content-Type: text/html 3e8 <- Chunk size hex bytes : /health/secondsdevice_ae:9a:22:48:0f:70"seconds0 + /health/locatedevice_ae:9a:22:48:0f:70"0 / /network/mac-addressdevice_ae:9a:22:48:0f:70" . . . 3e8 <- Chunk size hex byte _PLUS_rawdevice_ae:9a:22:48:0f:70"0 6 /dev/ISHARE_CBU_MINUS_rawdevice_ae:9a:22:48:0f:70"0 . . . /dev/part_iddevice_ae:9a:22:48:0f:70"0��������� , /dev/part_typedevice_ae:9a:22:48:0f:70"0 7 /dev/part_telemetry_disabledevice_ae:9a:22:48:0f:70"0 0 <- Termination Byte 0 ``` 2) Verfied that HTTP/1.0 requests are served with response without chunked transfer encoding and the connection is closed immediately. Query exits immediately indicating the connection is closed immediately ``` time printf "GET /telem HTTP/1.0\r\nHost: 192.0.3.11\r\n\r\n" | nc 192.0.3.11 80 real 0m0.186s <- Indicates connection was terminated immediately. user 0m0.018s sys 0m0.030s ``` `Transfer Encoding : chunked` header and chunked encoding metadata (chunk size hex bytes, crlf) not present in the response ``` HTTP/1.1 200 OK Content-Type: text/html : /health/uptimedevice_ae:9a:22:48:0f:70"seconds0 + /health/locatedevice_ae:9a:22:48:0f:70"0 / /network/mac-addressdevice_ae:9a:22:48:0f:70" . . . 3 /dev/part_iddevice_ae:9a:22:48:0f:70"0��������� , /dev/part_typedevice_ae:9a:22:48:0f:70"0 7 /dev/can_telemetry_disabledevice_ae:9a:22:48:0f:70"0 ``` Signed-off-by: Nikhil Namjoshi <[email protected]>
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Thanks for the review. I addressed all the inputs. |
jukkar
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Per RFC9112 (REF #1), HTTP/1.1 server is expected to be backward compatible with HTTP1.0 requests. Mainly HTTP/1.0 clients do not support
So, this change will identify the HTTP protocol
version in the request and respond accordingly.
REF#
Tested:
Query exits after 10s, indicating that the client connection to the HTTP server is a Keep Alive.
Transfer Encoding : chunkedheader and chunked encoding metadata (chunk size hex bytes, crlf, termination byte 0) are present in the response.response without chunked transfer encoding and the connection is closed immediately.
Query exits immediately indicating the connection is closed immediately
Transfer Encoding : chunkedheader and chunked encoding metadata (chunk size hex bytes, crlf) not present in the response