QuincyGao created an issue (kamailio/kamailio#4171)
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### Description http server for microhttpd, kamailio received http request, but not return any message. it should return `<html><body>OK</body></html>`
here is my conf: ``` loadmodule "microhttpd.so" modparam("microhttpd", "listen_addr", "172.16.4.111") modparam("microhttpd", "listen_port", 8284)
event_route[microhttpd:request] { xinfo("request: $mhttpd(method) - url: $mhttpd(url) - data: [$mhttpd(data)]\n"); mhttpd_reply("200", "OK", "text/html","<html><body>OK</body></html>"); } ``` microhttpd 1.0.1 installed: ``` ldd /usr/local/lib64/kamailio/modules/microhttpd.so linux-vdso.so.1 => (0x00007ffff0fdf000) libdl.so.2 => /lib64/libdl.so.2 (0x00007fb4d86b6000) libm.so.6 => /lib64/libm.so.6 (0x00007fb4d83b4000) librt.so.1 => /lib64/librt.so.1 (0x00007fb4d81ac000) libmicrohttpd.so.12 => /usr/local/lib64/libmicrohttpd.so.12 (0x00007fb4d7f79000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fb4d7d5d000) libc.so.6 => /lib64/libc.so.6 (0x00007fb4d798f000) /lib64/ld-linux-x86-64.so.2 (0x00007fb4d8ac4000) ```
``` ll /usr/local/lib64 kamailio -rw-r--r--. 1 root root 532156 Mar 6 11:19 libhiredis.a lrwxrwxrwx. 1 root root 19 Mar 6 11:19 libhiredis.so -> libhiredis.so.1.1.0 lrwxrwxrwx. 1 root root 19 Mar 6 11:19 libhiredis.so.1 -> libhiredis.so.1.1.0 -rwxr-xr-x. 1 root root 318832 Mar 6 11:19 libhiredis.so.1.1.0 -rw-r--r--. 1 root root 571974 Mar 6 11:19 liblua.a -rw-r--r--. 1 root root 1902020 Mar 6 11:19 libmicrohttpd.a -rwxr-xr-x. 1 root root 998 Mar 6 11:19 libmicrohttpd.la lrwxrwxrwx. 1 root root 24 Mar 6 11:19 libmicrohttpd.so -> libmicrohttpd.so.12.62.1 lrwxrwxrwx. 1 root root 24 Mar 6 11:19 libmicrohttpd.so.12 -> libmicrohttpd.so.12.62.1 -rwxr-xr-x. 1 root root 992136 Mar 6 11:19 libmicrohttpd.so.12.62.1 ```
<!-- Explain what you did, what you expected to happen, and what actually happened. -->
### Troubleshooting
#### Reproduction
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#### Debugging Data
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gdb /path/to/kamailio /path/to/corefile bt full info locals list
If you are familiar with gdb, feel free to attach more of what you consider to be relevant. -->
``` (paste your debugging data here) ```
#### Log Messages
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``` 25(1659) DEBUG: microhttpd [microhttpd_mod.c:475]: ksr_microhttpd_request(): executing event_route[microhttpd:request] (3) 25(1659) DEBUG: <core> [core/parser/parse_fline.c:249]: parse_first_line(): first line type 1 (request) flags 1 25(1659) DEBUG: <core> [core/parser/msg_parser.c:722]: parse_msg(): SIP Request: 25(1659) DEBUG: <core> [core/parser/msg_parser.c:724]: parse_msg(): method: <OPTIONS> 25(1659) DEBUG: <core> [core/parser/msg_parser.c:726]: parse_msg(): uri: sip:you@kamailio.org 25(1659) DEBUG: <core> [core/parser/msg_parser.c:728]: parse_msg(): version: <SIP/2.0> 25(1659) DEBUG: <core> [core/parser/parse_hname2.c:316]: parse_sip_header_name(): parsed header name [Via] type 1 25(1659) DEBUG: <core> [core/parser/parse_via.c:2663]: parse_via(): end of header reached, state=2 25(1659) DEBUG: <core> [core/parser/msg_parser.c:592]: parse_headers(): Via found, flags=2 25(1659) DEBUG: <core> [core/parser/msg_parser.c:594]: parse_headers(): this is the first via 25(1659) exec: *** cfgtrace:dbg_cfg_trace(): request_route=[microhttpd:request] c=[/usr/local/bin/../etc/kamailio/conf/kamailio.cfg] l=1164 a=25 n=xinfo 25(1659) INFO: <script>: request: POST - url: / - data: [{ "jsonrpc":"2.0", "method":"stats.get_statistics", "params":["registered_users"], "id":"123234", "value":{ "test1":1111, "test2":"2222" } }] 25(1659) exec: *** cfgtrace:dbg_cfg_trace(): request_route=[microhttpd:request] c=[/usr/local/bin/../etc/kamailio/conf/kamailio.cfg] l=1165 a=28 n=mhttpd_reply
```
#### SIP Traffic
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``` (paste your sip traffic here) ```
### Possible Solutions
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### Additional Information
* **Kamailio Version** - output of `kamailio -v`
``` version: kamailio 5.8.5 (x86_64/linux) flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, MEM_JOIN_FREE, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_SEND_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: compiled on 11:19:43 Mar 6 2025 with gcc 4.8.5 ```
* **Operating System**:
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``` centos7.9 ```