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connectionMethods.go
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connectionMethods.go
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package server
import (
"github.com/jeffjenkins/dispatchd/amqp"
"time"
)
func (channel *Channel) connectionRoute(conn *AMQPConnection, methodFrame amqp.MethodFrame) *amqp.AMQPError {
switch method := methodFrame.(type) {
case *amqp.ConnectionStartOk:
return channel.connectionStartOk(conn, method)
case *amqp.ConnectionTuneOk:
return channel.connectionTuneOk(conn, method)
case *amqp.ConnectionOpen:
return channel.connectionOpen(conn, method)
case *amqp.ConnectionClose:
return channel.connectionClose(conn, method)
case *amqp.ConnectionSecureOk:
return channel.connectionSecureOk(conn, method)
case *amqp.ConnectionCloseOk:
return channel.connectionCloseOk(conn, method)
case *amqp.ConnectionBlocked:
return channel.connectionBlocked(conn, method)
case *amqp.ConnectionUnblocked:
return channel.connectionUnblocked(conn, method)
}
var classId, methodId = methodFrame.MethodIdentifier()
return amqp.NewHardError(540, "Unable to route method frame", classId, methodId)
}
func (channel *Channel) connectionOpen(conn *AMQPConnection, method *amqp.ConnectionOpen) *amqp.AMQPError {
// TODO(MAY): Add support for virtual hosts. Check for access to the
// selected one
conn.connectStatus.open = true
channel.SendMethod(&amqp.ConnectionOpenOk{""})
conn.connectStatus.openOk = true
return nil
}
func (channel *Channel) connectionTuneOk(conn *AMQPConnection, method *amqp.ConnectionTuneOk) *amqp.AMQPError {
conn.connectStatus.tuneOk = true
if method.ChannelMax > conn.maxChannels || method.FrameMax > conn.maxFrameSize {
conn.hardClose()
return nil
}
conn.setMaxChannels(method.ChannelMax)
conn.setMaxFrameSize(method.FrameMax)
if method.Heartbeat > 0 {
// Start sending heartbeats to the client
conn.startSendHeartbeat(time.Duration(method.Heartbeat) * time.Second)
}
// Start listening for heartbeats from the client.
// We always ask for them since we want to shut down
// connections not in use
conn.handleClientHeartbeatTimeout()
return nil
}
func (channel *Channel) connectionStartOk(conn *AMQPConnection, method *amqp.ConnectionStartOk) *amqp.AMQPError {
// TODO(SHOULD): record product/version/platform/copyright/information
// TODO(MUST): assert mechanism, response, locale are not null
// TODO(MUST): if the auth is wrong, send 403 access-refused
conn.connectStatus.startOk = true
if method.Mechanism != "PLAIN" {
conn.hardClose()
}
if !conn.server.authenticate(method.Mechanism, method.Response) {
var classId, methodId = method.MethodIdentifier()
channel.sendError(&amqp.AMQPError{
Code: 530,
Class: classId,
Method: methodId,
Msg: "Authorization failed",
Soft: false,
})
}
conn.clientProperties = method.ClientProperties
// TODO(MUST): add support these being enforced at the connection level.
channel.SendMethod(&amqp.ConnectionTune{
conn.maxChannels,
conn.maxFrameSize,
uint16(conn.receiveHeartbeatInterval.Nanoseconds() / int64(time.Second)),
})
// TODO: Implement secure/secure-ok later if needed
conn.connectStatus.secure = true
conn.connectStatus.secureOk = true
conn.connectStatus.tune = true
return nil
}
func (channel *Channel) startConnection() *amqp.AMQPError {
// TODO(SHOULD): add fields: host, product, version, platform, copyright, information
var capabilities = amqp.NewTable()
capabilities.SetKey("publisher_confirms", false)
capabilities.SetKey("basic.nack", true)
var serverProps = amqp.NewTable()
// TODO: the java rabbitmq client I'm using for load testing doesn't like these string
// fields even though the go/python clients do. If they are set as longstr (bytes)
// instead they work, so I'm doing that for now
serverProps.SetKey("product", []byte("dispatchd"))
serverProps.SetKey("version", []byte("0.1"))
serverProps.SetKey("copyright", []byte("Jeffrey Jenkins, 2015"))
serverProps.SetKey("capabilities", capabilities)
serverProps.SetKey("platform", []byte("TODO"))
serverProps.SetKey("host", []byte("TODO"))
serverProps.SetKey("information", []byte("https://github.com/jeffjenkins/dispatchd"))
channel.SendMethod(&amqp.ConnectionStart{0, 9, serverProps, []byte("PLAIN"), []byte("en_US")})
return nil
}
func (channel *Channel) connectionClose(conn *AMQPConnection, method *amqp.ConnectionClose) *amqp.AMQPError {
channel.SendMethod(&amqp.ConnectionCloseOk{})
conn.hardClose()
return nil
}
func (channel *Channel) connectionCloseOk(conn *AMQPConnection, method *amqp.ConnectionCloseOk) *amqp.AMQPError {
conn.hardClose()
return nil
}
func (channel *Channel) connectionSecureOk(conn *AMQPConnection, method *amqp.ConnectionSecureOk) *amqp.AMQPError {
// TODO(MAY): If other security mechanisms are in place, handle this
conn.hardClose()
return nil
}
func (channel *Channel) connectionBlocked(conn *AMQPConnection, method *amqp.ConnectionBlocked) *amqp.AMQPError {
return amqp.NewHardError(540, "Not implemented", 10, 60)
}
func (channel *Channel) connectionUnblocked(conn *AMQPConnection, method *amqp.ConnectionUnblocked) *amqp.AMQPError {
return amqp.NewHardError(540, "Not implemented", 10, 61)
}