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res_pjsip_messaging: Remove Contact header from out-of-dialog MESSAGE as per RFC3428

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According to RFC 3428 (Section 5), a Contact header is not required in a
MESSAGE request unless the sender wants to establish a session. This
patch ensures that the Contact header is removed from out-of-dialog
MESSAGE requests within res_pjsip_messaging.c.

Fixes: #1356
This commit is contained in:
Alexis Hadjisotiriou
2026-01-19 15:20:53 +00:00
parent 8472e75ac1
commit 691bb4cf30
1 changed files with 6 additions and 1 deletions
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res/res_pjsip_messaging.c
+6 -1
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@@ -912,6 +912,7 @@ static int msg_send(void *data)
.body_text = ast_msg_get_body(mdata->msg)
};
pjsip_hdr *contact;
pjsip_tx_data *tdata;
RAII_VAR(char *, uri, NULL, ast_free);
RAII_VAR(struct ast_sip_endpoint *, endpoint, NULL, ao2_cleanup);
@@ -1023,7 +1024,11 @@ static int msg_send(void *data)
* tdata.
*/
vars_to_headers(mdata->msg, tdata);
/* Remove Contact header fields as per RFC 3428*/
contact = pjsip_msg_find_hdr(tdata->msg, PJSIP_H_CONTACT, NULL);
if (contact) {
pj_list_erase(contact);
}
ast_debug(1, "Sending message to '%s' (via endpoint %s) from '%s'\n",
uri, ast_sorcery_object_get_id(endpoint), mdata->from);