83 lines
1.8 KiB
Go
83 lines
1.8 KiB
Go
package telnet
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import (
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"log"
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"net"
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"strings"
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"time"
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"gitlab.crans.org/nounous/ghostream/stream"
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)
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func handleViewer(s net.Conn, streams map[string]*stream.Stream, textStreams map[string]*[]byte, cfg *Options) {
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// Prompt user about stream name
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if _, err := s.Write([]byte("[GHOSTREAM]\nEnter stream name: ")); err != nil {
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log.Printf("Error while writing to TCP socket: %s", err)
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s.Close()
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return
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}
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buff := make([]byte, 255)
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n, err := s.Read(buff)
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if err != nil {
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log.Printf("Error while requesting stream ID to telnet client: %s", err)
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s.Close()
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return
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}
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name := strings.TrimSpace(string(buff[:n]))
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if len(name) < 1 {
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// Too short, exit
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s.Close()
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return
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}
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// Wait a bit
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time.Sleep(time.Second)
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// Get requested stream
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st, ok := streams[name]
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if !ok {
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log.Println("Stream does not exist, kicking new Telnet viewer")
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if _, err := s.Write([]byte("This stream is inactive.\n")); err != nil {
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log.Printf("Error while writing to TCP socket: %s", err)
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}
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s.Close()
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return
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}
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// Register new client
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log.Printf("New Telnet viewer for stream %s", name)
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st.IncrementClientCount()
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// Hide terminal cursor
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if _, err = s.Write([]byte("\033[?25l")); err != nil {
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log.Printf("Error while writing to TCP socket: %s", err)
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s.Close()
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return
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}
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// Send stream
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for {
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text, ok := textStreams[name]
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if !ok {
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log.Println("Stream is not converted to text, kicking Telnet viewer")
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if _, err := s.Write([]byte("This stream cannot be opened.\n")); err != nil {
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log.Printf("Error while writing to TCP socket: %s", err)
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}
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break
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}
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// Send text to client
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n, err := s.Write(*text)
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if err != nil || n == 0 {
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log.Printf("Error while sending TCP data: %s", err)
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break
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}
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time.Sleep(time.Duration(cfg.Delay) * time.Millisecond)
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}
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// Close connection
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s.Close()
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st.DecrementClientCount()
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}
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