57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
|
package connections
|
||
|
|
|
||
|
|
import (
|
||
|
|
"cwtch.im/tapir"
|
||
|
|
"cwtch.im/tapir/applications"
|
||
|
|
"git.openprivacy.ca/openprivacy/libricochet-go/log"
|
||
|
|
)
|
||
|
|
|
||
|
|
// PeerApp encapsulates the behaviour of a Cwtch Peer
|
||
|
|
type PeerApp struct {
|
||
|
|
applications.AuthApp
|
||
|
|
connection *tapir.Connection
|
||
|
|
MessageHandler func(string, []byte)
|
||
|
|
OnAuth func(string)
|
||
|
|
OnClose func(string)
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewInstance should always return a new instantiation of the application.
|
||
|
|
func (pa PeerApp) NewInstance() tapir.Application {
|
||
|
|
newApp := new(PeerApp)
|
||
|
|
newApp.MessageHandler = pa.MessageHandler
|
||
|
|
newApp.OnAuth = pa.OnAuth
|
||
|
|
newApp.OnClose = pa.OnClose
|
||
|
|
return newApp
|
||
|
|
}
|
||
|
|
|
||
|
|
// Init is run when the connection is first started.
|
||
|
|
func (pa *PeerApp) Init(connection *tapir.Connection) {
|
||
|
|
// First run the Authentication App
|
||
|
|
pa.AuthApp.Init(connection)
|
||
|
|
|
||
|
|
if connection.HasCapability(applications.AuthCapability) {
|
||
|
|
pa.connection = connection
|
||
|
|
pa.OnAuth(connection.Hostname)
|
||
|
|
go pa.listen()
|
||
|
|
} else {
|
||
|
|
pa.OnClose(connection.Hostname)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (pa PeerApp) listen() {
|
||
|
|
for {
|
||
|
|
message := pa.connection.Expect()
|
||
|
|
if len(message) == 0 {
|
||
|
|
log.Errorf("0 byte read, socket has likely failed. Closing the listen goroutine")
|
||
|
|
return
|
||
|
|
}
|
||
|
|
pa.MessageHandler(pa.connection.Hostname, message)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// SendMessage sends the peer a preformatted message
|
||
|
|
// NOTE: This is a stub, we will likely want to extend this to better reflect the desired protocol
|
||
|
|
func (pa PeerApp) SendMessage(message []byte) {
|
||
|
|
pa.connection.Send(message)
|
||
|
|
}
|