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res_pjsip_messaging: Allow Content-Type to be overridden

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ASTERISK-26082 #close
Reported by: Alex

Change-Id: I6549e90932016349bc72b0f053432dc25286f4fb
This commit is contained in:
Sean Bright
2020-01-27 20:58:53 -05:00
parent f29ddd8925
commit 03d24ca4c1
1 changed files with 33 additions and 5 deletions
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38
res/res_pjsip_messaging.c
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@@ -316,10 +316,7 @@ static int is_msg_var_blocked(const char *name)
{ {
int i; int i;
/* /* Don't block the Max-Forwards header because the user can override it */
* Don't block Content-Type or Max-Forwards headers because the
* user can override them.
*/
static const char *hdr[] = { static const char *hdr[] = {
"To", "To",
"From", "From",
@@ -330,6 +327,7 @@ static int is_msg_var_blocked(const char *name)
"CSeq", "CSeq",
"Allow", "Allow",
"Content-Length", "Content-Length",
"Content-Type",
"Request-URI", "Request-URI",
}; };
@@ -635,11 +633,40 @@ static struct msg_data *msg_data_create(const struct ast_msg *msg, const char *t
return mdata; return mdata;
} }
static void update_content_type(pjsip_tx_data *tdata, struct ast_msg *msg, struct ast_sip_body *body)
{
static const pj_str_t CONTENT_TYPE = { "Content-Type", sizeof("Content-Type") - 1 };
const char *content_type = ast_msg_get_var(msg, pj_strbuf(&CONTENT_TYPE));
if (content_type) {
pj_str_t type, subtype;
pjsip_ctype_hdr *parsed;
/* Let pjsip do the parsing for us */
parsed = pjsip_parse_hdr(tdata->pool, &CONTENT_TYPE,
ast_strdupa(content_type), strlen(content_type),
NULL);
if (!parsed) {
ast_log(LOG_WARNING, "Failed to parse '%s' as a content type. Using text/plain\n",
content_type);
return;
}
/* We need to turn type and subtype into zero-terminated strings */
pj_strdup_with_null(tdata->pool, &type, &parsed->media.type);
pj_strdup_with_null(tdata->pool, &subtype, &parsed->media.subtype);
body->type = pj_strbuf(&type);
body->subtype = pj_strbuf(&subtype);
}
}
static int msg_send(void *data) static int msg_send(void *data)
{ {
RAII_VAR(struct msg_data *, mdata, data, ao2_cleanup); RAII_VAR(struct msg_data *, mdata, data, ao2_cleanup);
const struct ast_sip_body body = { struct ast_sip_body body = {
.type = "text", .type = "text",
.subtype = "plain", .subtype = "plain",
.body_text = ast_msg_get_body(mdata->msg) .body_text = ast_msg_get_body(mdata->msg)
@@ -664,6 +691,7 @@ static int msg_send(void *data)
update_to(tdata, mdata->to); update_to(tdata, mdata->to);
update_from(tdata, mdata->from); update_from(tdata, mdata->from);
update_content_type(tdata, mdata->msg, &body);
if (ast_sip_add_body(tdata, &body)) { if (ast_sip_add_body(tdata, &body)) {
pjsip_tx_data_dec_ref(tdata); pjsip_tx_data_dec_ref(tdata);