Hi, I'm not an expert in C and I checked module code and it looks like a bug.
Your syntax seems correct. With kind regards, Jurijs On Fri, Aug 15, 2025 at 1:48 PM Ivan Ribakov via sr-users < sr-users@lists.kamailio.org> wrote: > Could someone confirm if they ever had success accessing HTTP headers with > microhttpd module? Am I even using the correct syntax? > > > > *IVAN RIBAKOV* > Lead Engineer > > *__________________________________________* > > CAIT, Campus Montegancedo, > > Pozuelo de Alarcón 28223 > > Madrid - Spain > [image: https://zaleos.net] <https://zaleos.net/> [image: > https://www.linkedin.com/company/18014823] > <https://www.linkedin.com/company/18014823> > > On Tue, 5 Aug 2025, 17:52 Ivan Ribakov via sr-users, < > sr-users@lists.kamailio.org> wrote: > >> I'm trying to access the value of HTTP X header inside >> "event_route[microhttpd:request]" as follows: >> ``` >> xlog("L_INFO", "$mhttpd(H:X-Foo)\n"); >> ``` >> >> But I'm getting null. >> >> I also tried non-X headers `$mhttpd(H:Content-Type)` but still no luck. >> >> When running with DEBUG logs, I'm not seeing any hints as to what might >> be going wrong: >> >> ``` >> { "time": "2025-08-05T15:34:33.177582092Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: ctl [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.177649420Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: jsonrpcs [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.177667928Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: usrloc [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.177695097Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/utils/sruid.c", "line": >> 127, "function": "sruid_init", "logprefix": "", "message": "root for sruid >> is [ulcx-1-68922489-21-] (0 / 19)" } >> { "time": "2025-08-05T15:34:33.177713396Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: tm [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.177742450Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "tm", "file": "callid.c", "line": 138, >> "function": "child_init_callid", "logprefix": "", "message": "callid: ' >> 78f687a61e6a21b7-33@10.52.0.100'" } >> { "time": "2025-08-05T15:34:33.177751949Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: tmx [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.177768432Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "tmx", "file": "tmx_mod.c", "line": 249, >> "function": "child_init", "logprefix": "", "message": "rank is (-2)" } >> { "time": "2025-08-05T15:34:33.177777023Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: sl [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.177792318Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: uac [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.177807544Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: ndb_redis [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.177827100Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "ndb_redis", "file": "redis_client.c", "line": >> 259, "function": "redisc_init", "logprefix": "", "message": "Connecting to >> 22.22.22.102:6379" } >> { "time": "2025-08-05T15:34:33.178143906Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "ndb_redis", "file": "redis_client.c", "line": >> 271, "function": "redisc_init", "logprefix": "", "message": "rsrv->ctxRedis >> = 0x5df7e046fb40" } >> { "time": "2025-08-05T15:34:33.178464903Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: htable [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.178536771Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "htable", "file": "htable.c", "line": 267, >> "function": "child_init", "logprefix": "", "message": "rank is (-2)" } >> { "time": "2025-08-05T15:34:33.178576651Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: corex [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.178620093Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: dialog [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.178664304Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: rtpengine [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.178765506Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: nathelper [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.178805176Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: dispatcher [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.178846034Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: http_client [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.178887870Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "http_client", "file": "http_client.c", "line": >> 414, "function": "child_init", "logprefix": "", "message": "*** http_client >> module initializing process 33" } >> { "time": "2025-08-05T15:34:33.178919788Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "core", "file": "core/sr_module.c", "line": >> 919, "function": "init_mod_child", "logprefix": "", "message": "idx 22 rank >> -2: microhttpd [MicroHTTPd Server Process]" } >> { "time": "2025-08-05T15:34:33.178961414Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "microhttpd", "file": "microhttpd_mod.c", >> "line": 603, "function": "microhttpd_server_run", "logprefix": "", >> "message": "preparing to listen on 10.52.0.100 :8081" } >> ... >> { "time": "2025-08-05T15:34:34.375701559Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "microhttpd", "file": "microhttpd_mod.c", >> "line": 521, "function": "ksr_microhttpd_request", "logprefix": "", >> "message": "incoming data: >> [{\"jsonrpc\":\"2.0\",\"method\":\"core.version\",\"id\":1}]" } >> { "time": "2025-08-05T15:34:34.375729356Z", "idx": 22, "pid": 33, >> "level": "DEBUG", "module": "microhttpd", "file": "microhttpd_mod.c", >> "line": 553, "function": "ksr_microhttpd_request", "logprefix": "", >> "message": "executing event_route[microhttpd:request] (5)" } >> { "time": "2025-08-05T15:34:34.375793262Z", "idx": 22, "pid": 33, >> "level": "INFO", "module": "xlog", "file": "xlog.c", "line": 283, >> "function": "", "logprefix": "", "message": "<null>" } >> ``` >> >> Am I missing something or is this a bug? >> >> P.S. all other pre-fetched request data is fine (I checked path and body). >> __________________________________________________________ >> Kamailio - Users Mailing List - Non Commercial Discussions -- >> sr-users@lists.kamailio.org >> To unsubscribe send an email to sr-users-le...@lists.kamailio.org >> Important: keep the mailing list in the recipients, do not reply only to >> the sender! >> > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions -- > sr-users@lists.kamailio.org > To unsubscribe send an email to sr-users-le...@lists.kamailio.org > Important: keep the mailing list in the recipients, do not reply only to > the sender! >
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