You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
itd/calls.go

151 lines
3.8 KiB
Go

package main
import (
"context"
"sync"
"github.com/godbus/dbus/v5"
"github.com/rs/zerolog/log"
"go.arsenm.dev/infinitime"
"go.arsenm.dev/itd/internal/utils"
)
func initCallNotifs(ctx context.Context, dev *infinitime.Device) error {
// Connect to system bus. This connection is for method calls.
conn, err := utils.NewSystemBusConn(ctx)
if err != nil {
return err
}
// Check if modem manager interface exists
exists, err := modemManagerExists(ctx, conn)
if err != nil {
return err
}
// If it does not exist, stop function
if !exists {
conn.Close()
return nil
}
// Connect to system bus. This connection is for monitoring.
monitorConn, err := utils.NewSystemBusConn(ctx)
if err != nil {
return err
}
// Add match for new calls to monitor connection
err = monitorConn.AddMatchSignal(
dbus.WithMatchSender("org.freedesktop.ModemManager1"),
dbus.WithMatchInterface("org.freedesktop.ModemManager1.Modem.Voice"),
dbus.WithMatchMember("CallAdded"),
)
if err != nil {
return err
}
// Create channel to receive calls
callCh := make(chan *dbus.Message, 5)
// Notify channel upon received message
monitorConn.Eavesdrop(callCh)
var respHandlerOnce sync.Once
var callObj dbus.BusObject
go func() {
// For every message received
for event := range callCh {
// Get path to call object
callPath := event.Body[0].(dbus.ObjectPath)
// Get call object
callObj = conn.Object("org.freedesktop.ModemManager1", callPath)
// Get phone number from call object using method call connection
phoneNum, err := getPhoneNum(conn, callObj)
if err != nil {
log.Error().Err(err).Msg("Error getting phone number")
continue
}
// Send call notification to InfiniTime
resCh, err := dev.NotifyCall(phoneNum)
if err != nil {
continue
}
go respHandlerOnce.Do(func() {
// Wait for PineTime response
for res := range resCh {
switch res {
case infinitime.CallStatusAccepted:
// Attempt to accept call
err = acceptCall(ctx, conn, callObj)
if err != nil {
log.Warn().Err(err).Msg("Error accepting call")
}
case infinitime.CallStatusDeclined:
// Attempt to decline call
err = declineCall(ctx, conn, callObj)
if err != nil {
log.Warn().Err(err).Msg("Error declining call")
}
case infinitime.CallStatusMuted:
// Warn about unimplemented muting
log.Warn().Msg("Muting calls is not implemented")
}
}
})
}
}()
log.Info().Msg("Relaying calls to InfiniTime")
return nil
}
func modemManagerExists(ctx context.Context, conn *dbus.Conn) (bool, error) {
var names []string
err := conn.BusObject().CallWithContext(
ctx, "org.freedesktop.DBus.ListNames", 0,
).Store(&names)
if err != nil {
return false, err
}
return strSlcContains(names, "org.freedesktop.ModemManager1"), nil
}
// getPhoneNum gets a phone number from a call object using a DBus connection
func getPhoneNum(conn *dbus.Conn, callObj dbus.BusObject) (string, error) {
var out string
// Get number property on DBus object and store return value in out
err := callObj.StoreProperty("org.freedesktop.ModemManager1.Call.Number", &out)
if err != nil {
return "", err
}
return out, nil
}
// getPhoneNum accepts a call using a DBus connection
func acceptCall(ctx context.Context, conn *dbus.Conn, callObj dbus.BusObject) error {
// Call Accept() method on DBus object
call := callObj.CallWithContext(
ctx, "org.freedesktop.ModemManager1.Call.Accept", 0,
)
if call.Err != nil {
return call.Err
}
return nil
}
// getPhoneNum declines a call using a DBus connection
func declineCall(ctx context.Context, conn *dbus.Conn, callObj dbus.BusObject) error {
// Call Hangup() method on DBus object
call := callObj.CallWithContext(
ctx, "org.freedesktop.ModemManager1.Call.Hangup", 0,
)
if call.Err != nil {
return call.Err
}
return nil
}