Changeset 688 for pjproject/trunk/pjsip/src/pjsua-lib/pjsua_call.c

Timestamp:

Aug 20, 2006 9:12:19 AM (18 years ago)

Author:

bennylp

Message:

Added initial "norefersub" (RFC 4488) implementation in PJSUA-LIB, and also properly register all supported SIP method, accepted content type, and supported extensions to endpoint.

File:

• pjproject/trunk/pjsip/src/pjsua-lib/pjsua_call.c (modified) (6 diffs)

pjproject/trunk/pjsip/src/pjsua-lib/pjsua_call.c

@@ -95 +95 @@
     pjsip_inv_callback inv_cb;
     unsigned i;
+    const pj_str_t str_norefersub = { "norefersub", 10 };
     pj_status_t status;
 
@@ -116 +117 @@
     status = pjsip_inv_usage_init(pjsua_var.endpt, &inv_cb);
     PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
+
+    /* Add "norefersub" in Supported header */
+    pjsip_endpt_add_capability(pjsua_var.endpt, NULL, PJSIP_H_SUPPORTED,
+                               NULL, 1, &str_norefersub);
 
     return status;
@@ -2125 +2130 @@
     int new_call;
     const pj_str_t str_refer_to = { "Refer-To", 8};
+    const pj_str_t str_refer_sub = { "Refer-Sub", 9 };
     pjsip_generic_string_hdr *refer_to;
+    pjsip_generic_string_hdr *refer_sub;
+    pj_bool_t no_refer_sub = PJ_FALSE;
     char *uri;
     pj_str_t tmp;
-    struct pjsip_evsub_user xfer_cb;
     pjsip_status_code code;
     pjsip_evsub *sub;
@@ -2147 +2154 @@
     }
 
+    /* Find optional Refer-Sub header */
+    refer_sub = (pjsip_generic_string_hdr*)
+        pjsip_msg_find_hdr_by_name(rdata->msg_info.msg, &str_refer_sub, NULL);
+
+    if (refer_sub) {
+        if (!pj_strnicmp2(&refer_sub->hvalue, "true", 4)==0)
+            no_refer_sub = PJ_TRUE;
+    }
+
+
     /* Notify callback */
     code = PJSIP_SC_OK;
@@ -2167 +2184 @@
               refer_to->hvalue.ptr));
 
-    /* Init callback */
-    pj_bzero(&xfer_cb, sizeof(xfer_cb));
-    xfer_cb.on_evsub_state = &xfer_on_evsub_state;
-
-    /* Create transferee event subscription */
-    status = pjsip_xfer_create_uas( inv->dlg, &xfer_cb, rdata, &sub);
-    if (status != PJ_SUCCESS) {
-        pjsua_perror(THIS_FILE, "Unable to create xfer uas", status);
-        pjsip_dlg_respond( inv->dlg, rdata, 500, NULL, NULL, NULL);
-        return;
-    }
-
-    /* Accept the REFER request, send 200 (OK). */
-    pjsip_xfer_accept(sub, rdata, code, NULL);
-
-    /* Create initial NOTIFY request */
-    status = pjsip_xfer_notify( sub, PJSIP_EVSUB_STATE_ACTIVE,
-                                100, NULL, &tdata);
-    if (status != PJ_SUCCESS) {
-        pjsua_perror(THIS_FILE, "Unable to create NOTIFY to REFER", status);
-        return;
-    }
-
-    /* Send initial NOTIFY request */
-    status = pjsip_xfer_send_request( sub, tdata);
-    if (status != PJ_SUCCESS) {
-        pjsua_perror(THIS_FILE, "Unable to send NOTIFY to REFER", status);
-        return;
+    if (no_refer_sub) {
+        /*
+         * Always answer with 200.
+         */
+        pjsip_tx_data *tdata;
+        const pj_str_t str_false = { "false", 5};
+        pjsip_hdr *hdr;
+
+        status = pjsip_dlg_create_response(inv->dlg, rdata, 200, NULL, &tdata);
+        if (status != PJ_SUCCESS) {
+            pjsua_perror(THIS_FILE, "Unable to create 200 response to REFER",
+                         status);
+            return;
+        }
+
+        /* Add Refer-Sub header */
+        hdr = (pjsip_hdr*) 
+               pjsip_generic_string_hdr_create(tdata->pool, &str_refer_sub,
+                                              &str_false);
+        pjsip_msg_add_hdr(tdata->msg, hdr);
+
+
+        /* Send answer */
+        status = pjsip_dlg_send_response(inv->dlg, pjsip_rdata_get_tsx(rdata),
+                                         tdata);
+        if (status != PJ_SUCCESS) {
+            pjsua_perror(THIS_FILE, "Unable to create 200 response to REFER",
+                         status);
+            return;
+        }
+
+        /* Don't have subscription */
+        sub = NULL;
+
+    } else {
+        struct pjsip_evsub_user xfer_cb;
+        pjsip_hdr hdr_list;
+
+        /* Init callback */
+        pj_bzero(&xfer_cb, sizeof(xfer_cb));
+        xfer_cb.on_evsub_state = &xfer_on_evsub_state;
+
+        /* Init additional header list to be sent with REFER response */
+        pj_list_init(&hdr_list);
+
+        /* Create transferee event subscription */
+        status = pjsip_xfer_create_uas( inv->dlg, &xfer_cb, rdata, &sub);
+        if (status != PJ_SUCCESS) {
+            pjsua_perror(THIS_FILE, "Unable to create xfer uas", status);
+            pjsip_dlg_respond( inv->dlg, rdata, 500, NULL, NULL, NULL);
+            return;
+        }
+
+        /* If there's Refer-Sub header and the value is "true", send back
+         * Refer-Sub in the response with value "true" too.
+         */
+        if (refer_sub) {
+            const pj_str_t str_true = { "true", 4 };
+            pjsip_hdr *hdr;
+
+            hdr = (pjsip_hdr*) 
+                   pjsip_generic_string_hdr_create(inv->dlg->pool, 
+                                                   &str_refer_sub,
+                                                   &str_true);
+            pj_list_push_back(&hdr_list, hdr);
+
+        }
+
+        /* Accept the REFER request, send 200 (OK). */
+        pjsip_xfer_accept(sub, rdata, code, &hdr_list);
+
+        /* Create initial NOTIFY request */
+        status = pjsip_xfer_notify( sub, PJSIP_EVSUB_STATE_ACTIVE,
+                                    100, NULL, &tdata);
+        if (status != PJ_SUCCESS) {
+            pjsua_perror(THIS_FILE, "Unable to create NOTIFY to REFER", 
+                         status);
+            return;
+        }
+
+        /* Send initial NOTIFY request */
+        status = pjsip_xfer_send_request( sub, tdata);
+        if (status != PJ_SUCCESS) {
+            pjsua_perror(THIS_FILE, "Unable to send NOTIFY to REFER", status);
+            return;
+        }
     }
 
@@ -2212 +2287 @@
     if (status != PJ_SUCCESS) {
 
-        /* Notify xferer about the error */
-        status = pjsip_xfer_notify(sub, PJSIP_EVSUB_STATE_TERMINATED,
-                                   500, NULL, &tdata);
-        if (status != PJ_SUCCESS) {
-            pjsua_perror(THIS_FILE, "Unable to create NOTIFY to REFER", 
-                          status);
-            return;
-        }
-        status = pjsip_xfer_send_request(sub, tdata);
-        if (status != PJ_SUCCESS) {
-            pjsua_perror(THIS_FILE, "Unable to send NOTIFY to REFER", 
-                          status);
-            return;
+        /* Notify xferer about the error (if we have subscription) */
+        if (sub) {
+            status = pjsip_xfer_notify(sub, PJSIP_EVSUB_STATE_TERMINATED,
+                                       500, NULL, &tdata);
+            if (status != PJ_SUCCESS) {
+                pjsua_perror(THIS_FILE, "Unable to create NOTIFY to REFER", 
+                              status);
+                return;
+            }
+            status = pjsip_xfer_send_request(sub, tdata);
+            if (status != PJ_SUCCESS) {
+                pjsua_perror(THIS_FILE, "Unable to send NOTIFY to REFER", 
+                              status);
+                return;
+            }
         }
         return;
     }
 
-    /* Put the server subscription in inv_data.
-     * Subsequent state changed in pjsua_inv_on_state_changed() will be
-     * reported back to the server subscription.
-     */
-    pjsua_var.calls[new_call].xfer_sub = sub;
-
-    /* Put the invite_data in the subscription. */
-    pjsip_evsub_set_mod_data(sub, pjsua_var.mod.id, 
-                             &pjsua_var.calls[new_call]);
+    if (sub) {
+        /* Put the server subscription in inv_data.
+         * Subsequent state changed in pjsua_inv_on_state_changed() will be
+         * reported back to the server subscription.
+         */
+        pjsua_var.calls[new_call].xfer_sub = sub;
+
+        /* Put the invite_data in the subscription. */
+        pjsip_evsub_set_mod_data(sub, pjsua_var.mod.id, 
+                                 &pjsua_var.calls[new_call]);
+    }
 }