Files
cgrates/sessionmanager/smasterisk.go

105 lines
3.5 KiB
Go

/*
Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
Copyright (C) ITsysCOM GmbH
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
package sessionmanager
import (
"fmt"
"net/url"
"github.com/cgrates/aringo"
"github.com/cgrates/cgrates/config"
"github.com/cgrates/cgrates/utils"
"github.com/cgrates/rpcclient"
)
const (
CGRAuthAPP = "cgrates_auth"
)
func NewSMAsterisk(cgrCfg *config.CGRConfig, astConnIdx int, smg rpcclient.RpcClientConnection) (*SMAsterisk, error) {
return &SMAsterisk{cgrCfg: cgrCfg, smg: smg}, nil
}
type SMAsterisk struct {
cgrCfg *config.CGRConfig // Separate from smCfg since there can be multiple
astConnIdx int
smg rpcclient.RpcClientConnection
astConn *aringo.ARInGO
astEvChan chan map[string]interface{}
astErrChan chan error
}
func (sma *SMAsterisk) connectAsterisk() (err error) {
connCfg := sma.cgrCfg.SMAsteriskCfg().AsteriskConns[sma.astConnIdx]
sma.astEvChan = make(chan map[string]interface{})
sma.astErrChan = make(chan error)
sma.astConn, err = aringo.NewARInGO(fmt.Sprintf("ws://%s/ari/events?api_key=%s:%s&app=%s", connCfg.Address, connCfg.User, connCfg.Password, CGRAuthAPP), "http://cgrates.org",
connCfg.User, connCfg.Password, fmt.Sprintf("%s %s", utils.CGRateS, utils.VERSION), sma.astEvChan, sma.astErrChan, connCfg.ConnectAttempts, connCfg.Reconnects)
if err != nil {
return err
}
return nil
}
// Called to start the service
func (sma *SMAsterisk) ListenAndServe() (err error) {
if err := sma.connectAsterisk(); err != nil {
return err
}
for {
select {
case err = <-sma.astErrChan:
return err
case astRawEv := <-sma.astEvChan:
ariEvent := NewARIEvent(astRawEv)
switch ariEvent.Type() {
case ARIStasisStart:
go sma.handleStasisStart(ariEvent)
}
}
}
panic("<SMAsterisk> ListenAndServe out of select")
}
func (sma *SMAsterisk) handleStasisStart(ev *ARIEvent) {
channelID := ev.ChannelID()
if _, err := sma.astConn.Call(aringo.HTTP_POST, fmt.Sprintf("http://%s/ari/applications/%s/subscription?eventSource=channel:%s",
sma.cgrCfg.SMAsteriskCfg().AsteriskConns[sma.astConnIdx].Address, CGRAuthAPP, channelID), nil); err != nil {
utils.Logger.Err(fmt.Sprintf("<SMAsterisk> Error: %s when subscribing to events for channelID: %s", err.Error(), channelID))
if _, err := sma.astConn.Call(aringo.HTTP_DELETE, fmt.Sprintf("http://%s/ari/channels/%s",
sma.cgrCfg.SMAsteriskCfg().AsteriskConns[sma.astConnIdx].Address, channelID), url.Values{"reason": {"congestion"}}); err != nil {
utils.Logger.Err(fmt.Sprintf("<SMAsterisk> Error: %s when attempting to disconnect channelID: %s", err.Error(), channelID))
return
}
}
if _, err := sma.astConn.Call(aringo.HTTP_POST, fmt.Sprintf("http://%s/ari/channels/%s/continue",
sma.cgrCfg.SMAsteriskCfg().AsteriskConns[sma.astConnIdx].Address, channelID), url.Values{"channelId": {channelID}}); err != nil {
}
}
// Called to shutdown the service
func (rls *SMAsterisk) ServiceShutdown() error {
return nil
}