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93 lines
2.0 KiB
Go
93 lines
2.0 KiB
Go
package telnet
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import (
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"bufio"
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"context"
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"log"
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"net"
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"github.com/ThreeDotsLabs/watermill"
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"github.com/ThreeDotsLabs/watermill/message"
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"github.com/ThreeDotsLabs/watermill/message/router/middleware"
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)
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type TELNETOption struct {
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Us, UsQ, Them, ThemQ bool
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}
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type TELNETOptions map[string]TELNETOption
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type TELNETParser struct {
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s message.Subscriber
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c context.Context
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logger watermill.LoggerAdapter
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to TELNETOptions
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}
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func (tp *TELNETParser) Handle() {
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messages, err := tp.s.Subscribe(tp.c, "telnet.raw")
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if err != nil {
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log.Fatalln("couldn't subscribe to telnet.raw")
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}
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for message := range messages {
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fields := make(watermill.LogFields)
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fields["body"] = string(message.Payload)
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fields["correlation_id"] = string(message.Metadata["correlation_id"])
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tp.logger.Trace("received raw TCP line", fields)
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message.Ack()
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}
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}
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func NewTELNETParser(c context.Context, s message.Subscriber, wml watermill.LoggerAdapter) *TELNETParser {
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return &TELNETParser{
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c: c,
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s: s,
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logger: wml,
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}
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}
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type TELNETServer struct {
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l net.Listener
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p message.Publisher
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c context.Context
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logger watermill.LoggerAdapter
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to TELNETOptions
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}
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func NewTELNETServer(c context.Context, l net.Listener, p message.Publisher, wml watermill.LoggerAdapter) *TELNETServer {
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ts := TELNETServer{
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c: c,
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l: l,
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p: p,
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logger: wml,
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}
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return &ts
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}
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func (ts *TELNETServer) Handle(conn net.Conn) {
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s := bufio.NewScanner(conn)
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defer conn.Close()
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// i need to create an ecs Renderer that targets a iw.Writer (net.Conn)
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// the renderer
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correlationID := watermill.NewUUID()
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ts.logger = ts.logger.With(
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watermill.LogFields{
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"correlation_id": correlationID},
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)
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for s.Scan() {
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t := s.Text()
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m := message.NewMessage(watermill.NewUUID(), []byte(t))
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middleware.SetCorrelationID(correlationID, m)
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err := ts.p.Publish("telnet.raw", m)
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if err != nil {
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log.Fatalln("couldn't write to telnet.raw")
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}
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ts.logger.Trace("received bytes over telnet", nil)
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}
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}
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