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302 lines
12 KiB
302 lines
12 KiB
### DISPATCHER ROLE ####
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#!trydef KZ_DISPATCHER_PROBE_MODE 1
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#!trydef DISPATCHER_ADD_SERVERS 1
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#!trydef DISPATCHER_ADD_SECONDARY_IP 1
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#!trydef DISPATCHER_SECONDARY_IP_GROUP 3
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#!trydef DISPATCHER_ALG 0
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#!trydef KZ_DISPATCHER_HASH_SIZE 8
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#!trydef KZ_DISPATCHER_ADD_FLAGS 9
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#!trydef KZ_DISPATCHER_PRIMARY_GROUP 1
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#!trydef KZ_DISPATCHER_SECONDARY_GROUP 2
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#!trydef KZ_DISPATCHER_CLASSIFY_GROUP 3
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#!trydef KZ_DISPATCHER_ALTNET1_PRIMARY_GROUP 51
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#!trydef KZ_DISPATCHER_ALTNET1_SECONDARY_GROUP 52
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#!trydef KZ_DISPATCHER_ALTNET2_PRIMARY_GROUP 53
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#!trydef KZ_DISPATCHER_ALTNET2_SECONDARY_GROUP 54
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#!trydef KZ_DISPATCHER_PRESENCE_PRIMARY_GROUP 10
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#!trydef KZ_DISPATCHER_PRESENCE_SECONDARY_GROUP 11
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#!trydef KZ_DISPATCHER_REGISTRAR_PRIMARY_GROUP 20
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#!trydef KZ_DISPATCHER_REGISTRAR_SECONDARY_GROUP 21
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#!trydef KZ_DISPATCHER_MAX_RETRIES 2
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#!trydef KZ_DISPATCHER_ROUTE_ASSOCIATED_MEDIA 1
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#!trydef KZ_DISPATCHER_CLASSIFY_FLAGS 2
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#!trydef KZ_DISPATCHER_PRINT_ROUTES 1
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kazoo.dispatcher_auto_add = DISPATCHER_ADD_SERVERS descr "adds media servers reported by ecallmgr"
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kazoo.dispatcher_add_secondary_ip = DISPATCHER_ADD_SECONDARY_IP descr "adds internal ip from media servers reported by ecallmgr"
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kazoo.dispatcher_add_secondary_ip_group = DISPATCHER_SECONDARY_IP_GROUP descr "sets the group where to add internal ip from media servers reported by ecallmgr"
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kazoo.dispatcher_algorithm = DISPATCHER_ALG descr "dispatcher algorithm to use"
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kazoo.dispatcher_primary_group = KZ_DISPATCHER_PRIMARY_GROUP descr "dispatcher primary group"
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kazoo.dispatcher_secondary_group = KZ_DISPATCHER_SECONDARY_GROUP descr "dispatcher secondary group"
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kazoo.dispatcher_max_retries = KZ_DISPATCHER_MAX_RETRIES descr "max number of retries for media servers"
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kazoo.dispatcher_route_to_associated_media = KZ_DISPATCHER_ROUTE_ASSOCIATED_MEDIA descr "routes to associated media for atxfer"
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kazoo.dispatcher_classify_flags = KZ_DISPATCHER_CLASSIFY_FLAGS descr "dispatch classifier flags"
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kazoo.dispatcher_print_routes = KZ_DISPATCHER_PRINT_ROUTES descr "should we log the selected routes"
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####### Dispatcher module ########
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loadmodule "dispatcher.so"
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modparam("dispatcher", "db_url", "KAZOO_DB_URL")
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modparam("dispatcher", "flags", 2)
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modparam("dispatcher", "use_default", 0)
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modparam("dispatcher", "force_dst", 1)
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modparam("dispatcher", "hash_pvar", "$avp(ds_grp)")
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modparam("dispatcher", "setid_pvname", "$var(setid)")
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modparam("dispatcher", "attrs_pvname", "$var(attrs)")
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modparam("dispatcher", "ds_ping_method", "OPTIONS")
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modparam("dispatcher", "ds_ping_interval", 10)
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modparam("dispatcher", "ds_probing_threshold", 3)
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modparam("dispatcher", "ds_probing_mode", KZ_DISPATCHER_PROBE_MODE)
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modparam("dispatcher", "ds_ping_reply_codes", "501,403,404,400,200")
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modparam("dispatcher", "ds_ping_from", "sip:sipcheck@MY_HOSTNAME")
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modparam("dispatcher", "xavp_dst", "ds_dst")
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modparam("dispatcher", "xavp_ctx", "ds_ctx")
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modparam("dispatcher", "ds_hash_size", KZ_DISPATCHER_HASH_SIZE)
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#!import_file "dispatcher-network-params.cfg"
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## Dispatcher Groups:
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## 1 - Primary media servers
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## 2 - Backup media servers
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## 3 - Alternate media server IPs (used only for classification)
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## 10 - Presence servers (if not locally handled)
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## 20 - Registrar servers (if not locally handled)
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modparam("rtimer", "timer", "name=dispatcher_reload;interval=20;mode=1;")
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modparam("rtimer", "exec", "timer=dispatcher_reload;route=DISPATCHER_RELOAD")
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####### Dispatcher Logic ########
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route[DISPATCHER_CLASSIFY_SOURCE]
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{
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#!import_file "dispatcher-network-classify.cfg"
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if (is_myself("$ou")) {
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xlog("$var(log_request_level)", "$ci|log|original R-URI ($ou) is this proxy, treating as external sources\n");
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} else {
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$var(classify_dispatcher_flag) = $(sel(cfg_get.kazoo.dispatcher_classify_flags){s.int});
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if (ds_is_from_list(KZ_DISPATCHER_PRIMARY_GROUP, "$var(classify_dispatcher_flag)") ||
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ds_is_from_list(KZ_DISPATCHER_SECONDARY_GROUP, "$var(classify_dispatcher_flag)") ||
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ds_is_from_list(KZ_DISPATCHER_CLASSIFY_GROUP, "$var(classify_dispatcher_flag)") ||
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ds_is_from_list(KZ_DISPATCHER_ALTNET1_PRIMARY_GROUP, "$var(classify_dispatcher_flag)") ||
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ds_is_from_list(KZ_DISPATCHER_ALTNET1_SECONDARY_GROUP, "$var(classify_dispatcher_flag)") ||
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ds_is_from_list(KZ_DISPATCHER_ALTNET2_PRIMARY_GROUP, "$var(classify_dispatcher_flag)") ||
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ds_is_from_list(KZ_DISPATCHER_ALTNET2_SECONDARY_GROUP, "$var(classify_dispatcher_flag)") ||
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ds_is_from_list(KZ_DISPATCHER_PRESENCE_PRIMARY_GROUP, "$var(classify_dispatcher_flag)") ||
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ds_is_from_list(KZ_DISPATCHER_PRESENCE_SECONDARY_GROUP, "$var(classify_dispatcher_flag)") ||
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ds_is_from_list(KZ_DISPATCHER_REGISTRAR_PRIMARY_GROUP, "$var(classify_dispatcher_flag)") ||
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ds_is_from_list(KZ_DISPATCHER_REGISTRAR_SECONDARY_GROUP, "$var(classify_dispatcher_flag)")) {
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xlog("$var(log_request_level)", "$ci|log|originated from internal sources\n");
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setflag(FLAG_INTERNALLY_SOURCED);
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} else {
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xlog("$var(log_request_level)", "$ci|log|originated from external sources\n");
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}
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}
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}
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# Take the routes from dispatcher - hash over callid
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# If prefered route defined, reorder the destionations
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route[DISPATCHER_FIND_ROUTES]
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{
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$var(ds_primary_group) = $(sel(cfg_get.kazoo.dispatcher_primary_group){s.int});
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$var(ds_backup_group) = $(sel(cfg_get.kazoo.dispatcher_secondary_group){s.int});
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#!ifndef PRESENCE_ROLE
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if (is_method("SUBSCRIBE")) {
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$var(ds_primary_group) = KZ_DISPATCHER_PRESENCE_PRIMARY_GROUP;
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$var(ds_backup_group) = KZ_DISPATCHER_PRESENCE_SECONDARY_GROUP;
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}
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#!endif
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#!ifndef REGISTRAR_ROLE
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if (is_method("REGISTER")) {
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$var(ds_primary_group) = KZ_DISPATCHER_REGISTRAR_PRIMARY_GROUP;
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$var(ds_backup_group) = KZ_DISPATCHER_REGISTRAR_SECONDARY_GROUP;
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}
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#!endif
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#!ifdef PRESENCE_ROLE
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route(PRESENCE_FAST_PICKUP_ATTEMPT);
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#!endif
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#!import_file "dispatcher-network-find.cfg"
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$var(ds_group) = $var(ds_primary_group);
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$var(ds_alg) = $sel(cfg_get.kazoo.dispatcher_algorithm);
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if(ds_list_exists("$var(ds_backup_group)")) {
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$var(ds_rule) = $_s($var(ds_primary_group)=$var(ds_alg);$var(ds_backup_group)=$var(ds_alg));
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} else {
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$var(ds_rule) = $_s($var(ds_primary_group)=$var(ds_alg));
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}
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ds_select_routes("$var(ds_rule)", "2");
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if ($xavp(ds_ctx=>cnt) == 0) {
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xlog("L_WARN", "$ci|end|no servers available in primary or backup group\n");
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sl_send_reply("480", "All servers busy");
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exit;
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}
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route(PRINT_ROUTES);
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$var(user_source) = $(ct{tobody.user}) + "@" + $si + ":" + $sp;
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if ($sht(associations=>$var(user_source)) != $null) {
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if($sel(cfg_get.kazoo.dispatcher_route_to_associated_media) == 1) {
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$var(prefered_route) = $sht(associations=>$var(user_source));
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xlog("L_INFO", "$ci|route|found association for contact uri $var(user_source)\n");
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route(DISPATCHER_PREFERRED_ROUTE);
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}
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$sht(associations=>$var(user_source)) = $null;
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}
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$avp(ds_group) = $xavp(ds_dst=>grp);
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$avp(ds_retries) = 0;
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ds_set_dst();
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}
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route[DISPATCHER_PREFERRED_ROUTE]
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{
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if(!ds_is_from_list(-1, 6, "$var(prefered_route)")) {
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xlog("L_INFO", "$ci|log|associated media server $var(prefered_route) is inactive, moving to $xavp(ds_dst=>uri)\n");
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return -1;
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}
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xlog("L_INFO", "$ci|log|re-ordering the dispatcher list to maintain association with $var(prefered_route)\n");
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$var(i) = 0;
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while($var(i) < $xavp(ds_ctx=>cnt)) {
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if($xavp(ds_dst[$var(i)]=>uri) == $var(prefered_route)) {
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xlog("L_INFO", "$ci|route|removing preferred route $xavp(ds_dst[$var(i)]=>uri) from list\n");
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$xavp(ds_dst[$var(i)]=>*) = $null;
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}
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$var(i) = $var(i) + 1;
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}
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$xavp(ds_dst=>uri) = $var(prefered_route);
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$xavp(ds_dst[0]=>grp) = $var(setid);
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$xavp(ds_dst[0]=>attrs) = $var(attrs);
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return 1;
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}
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route[PRINT_ROUTES]
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{
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if($sel(cfg_get.kazoo.dispatcher_print_routes) == 0) return;
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$var(i) = 0;
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while($xavp(ds_dst[$var(i)]=>uri) != $null) {
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xlog("L_INFO", "$ci|route|group $xavp(ds_dst[$var(i)]=>grp) => $xavp(ds_dst[$var(i)]=>uri) => zone $(xavp(ds_dst[$var(i)]=>attrs){param.value,zone})\n");
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$var(i) = $var(i) + 1;
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}
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}
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#!import_file "dispatcher-next-route.cfg"
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#!ifndef CUSTOM_DISPATCHER_NEXT_ROUTE
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# Try next destinations in failure route
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route[DISPATCHER_NEXT_ROUTE]
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{
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if($avp(ds_retries) >= $sel(cfg_get.kazoo.dispatcher_max_retries)) return;
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$avp(ds_retries) = $avp(ds_retries) + 1;
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if(ds_next_dst()) {
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xlog("L_INFO", "$ci|log|routing call to next media server $du\n");
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setflag(FLAG_SKIP_NAT_CORRECTION);
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# relay the request to the new media server
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route(RELAY);
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exit;
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}
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}
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#!endif
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event_route[dispatcher:dst-down]
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{
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xlog("L_WARNING", "Destination down: $ru , $xavp(ds_dst=>uri), $xavp(ds_dst=>grp), $xavp(ds_dst=>attrs)\n");
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}
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event_route[dispatcher:dst-up]
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{
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xlog("L_WARNING", "Destination up: $ru , $xavp(ds_dst=>uri), $xavp(ds_dst=>grp), $xavp(ds_dst=>attrs)\n");
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}
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route[DISPATCHER_CHECK_MEDIA_SERVER]
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{
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$var(check_media_server_ret) = 0;
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if($sel(cfg_get.kazoo.dispatcher_auto_add) == 1) {
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$var(SetId) = 1;
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if($var(Zone) != "MY_AMQP_ZONE") {
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$var(SetId) = 2;
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}
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$var(flags) = KZ_DISPATCHER_ADD_FLAGS;
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$var(attrs) = $_s(zone=$var(Zone);profile=$var(MediaProfile);duid=$(var(MediaUrl){s.corehash, MEDIA_SERVERS_HASH_SIZE});node=$var(MediaName));
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#!import_file "dispatcher-custom-media-check.cfg"
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sql_query("exec", "KZQ_CHECK_MEDIA_SERVER_INSERT");
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if($sqlrows(exec) > 0) {
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$shv(dispatcher_reload) = 1;
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$var(check_media_server_ret) = 1;
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}
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if($sel(cfg_get.kazoo.dispatcher_add_secondary_ip) == 1) {
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if($var(MediaIP) != "" && $var(MediaIP) != $(var(MediaUrl){uri.host})) {
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$var(MediaUrlBack) = $var(MediaUrl);
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$var(MediaUrl) = $_s($(var(MediaUrlBack){uri.scheme}):$var(MediaIP):$(var(MediaUrlBack){uri.port}));
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$var(attrs) = $_s(zone=$var(Zone);profile=$var(MediaProfile);duid=$(var(MediaUrl){s.corehash, MEDIA_SERVERS_HASH_SIZE});node=$var(MediaName));
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$var(SetId) = $sel(cfg_get.kazoo.dispatcher_add_secondary_ip_group);
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sql_query("exec", "KZQ_CHECK_MEDIA_SERVER_INSERT");
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if($sqlrows(exec) > 0) {
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$shv(dispatcher_reload) = 1;
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$var(check_media_server_ret) = 1;
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}
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$var(MediaUrl) = $var(MediaUrlBack);
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}
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}
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}
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return $var(check_media_server_ret);
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}
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route[DISPATCHER_RELOAD]
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{
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if($shv(dispatcher_reload) == 1) {
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xlog("L_WARNING", "reloading dispatcher table\n");
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ds_reload();
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};
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$shv(dispatcher_reload) = 0;
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}
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route[DISPATCHER_STATUS]
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{
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jsonrpc_exec('{"jsonrpc": "2.0", "method": "dispatcher.list", "id": 1}');
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$var(Sets) = $(jsonrpl(body){kz.json, result.NRSETS});
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$var(i) = 0;
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$var(ds_groups_json)="";
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$var(Sep1) = "";
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while($var(i) < $var(Sets)) {
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$var(Set) = $(jsonrpl(body){kz.json, result.RECORDS[$var(i)].SET});
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$var(SetCount) = $(var(Set){kz.json.count,TARGETS});
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$var(Sep2)="";
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$var(ds_group_json)="";
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$var(c) = 0;
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while($var(c) < $var(SetCount)) {
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$var(Dest) = $(var(Set){kz.json,TARGETS[$var(c)].DEST});
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$var(record) = $_s("$(var(Dest){kz.json,URI})" : {"destination" : "$(var(Dest){kz.json,URI})", "flags" : "$(var(Dest){kz.json,FLAGS})", "priority" : $(var(Dest){kz.json,PRIORITY}), "attrs" : "$(var(Dest){kz.json,ATTRS.BODY})"});
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$var(ds_group_json) = $var(ds_group_json) + $var(Sep2) + $var(record);
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$var(Sep2) = ",";
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$var(c) = $var(c) + 1;
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}
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$var(ds_groups_json) = $var(ds_groups_json) + $var(Sep1) + $_s("$(var(Set){kz.json,ID})" : { $var(ds_group_json) });
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$var(Sep1)=", ";
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$var(i) = $var(i) + 1;
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}
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}
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# vim: tabstop=4 softtabstop=4 shiftwidth=4 expandtab
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