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controllers.go
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controllers.go
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package main
import (
"fmt"
"log"
"strings"
"github.com/gorilla/websocket"
)
func (client *Client) broadcastMessage(message string) {
mutex.Lock()
defer mutex.Unlock()
for _, allClient := range clients {
if allClient.Conn == client.Conn {
continue
}
err := allClient.Conn.WriteMessage(websocket.TextMessage, []byte(message))
if err != nil {
log.Printf("Error broadcsting to %s: %s", client.Username, err)
client.Conn.Close()
delete(clients, client.Conn)
continue
}
}
}
func (client *Client) getUsernamePassword() {
paswd := white(bold("PASSWORD"))
if err := client.Conn.WriteMessage(websocket.TextMessage, []byte(paswd)); err != nil {
log.Println("Error sending the password prompt: ", err)
return
}
_, paswdBytes, err := client.Conn.ReadMessage()
if err != nil {
log.Println(err)
return
}
if strings.TrimSpace((string(paswdBytes))) != password {
client.Conn.WriteMessage(websocket.TextMessage, []byte(red(bold("WRONG PASSWORD"))))
log.Printf("FAILED LOGIN FROM %v", client.Conn.RemoteAddr())
client.Conn.Close()
return
}
username := white(bold("USERNAME"))
if err := client.Conn.WriteMessage(websocket.TextMessage, []byte(username)); err != nil {
log.Println("Error sending username promt: ", err)
return
}
_, usernameBytes, err := client.Conn.ReadMessage()
if err != nil {
log.Println(err)
return
}
client.Username = strings.TrimSpace(string(usernameBytes))
mutex.Lock()
clients[client.Conn] = client
mutex.Unlock()
msg := green(bold("CONNECTED TO THE FEED"))
client.Conn.WriteMessage(websocket.TextMessage, []byte(msg))
}
func (client *Client) welcome() {
welcomeMessage := fmt.Sprintf("[%s] has connected to the chat -%v\n", client.Username, client.Conn.RemoteAddr())
coloredWelcomeMessage := green(bold(welcomeMessage))
client.broadcastMessage(coloredWelcomeMessage)
log.Printf("A connection made from %v", client.Conn.RemoteAddr())
}
func (client *Client) handleMessages() {
defer func() {
exitMessage := (fmt.Sprintf("\n[%s] has disconnected %v\n", client.Username, client.Conn.RemoteAddr()))
coloredExitMessage := red(exitMessage)
client.Conn.Close()
mutex.Lock()
delete(clients, client.Conn)
mutex.Unlock()
client.broadcastMessage(bold(coloredExitMessage))
}()
for {
_, msg, err := client.Conn.ReadMessage()
if err != nil {
log.Println(err)
break
}
trimmedMsg := strings.TrimSpace(string(msg))
if trimmedMsg != "" {
exMessage := fmt.Sprintf("[%s]: %s", client.Username, msg)
coloredExMessage := client.msgColor.Sprintf(exMessage)
log.Println(bold(coloredExMessage))
client.broadcastMessage(bold(coloredExMessage))
}
}
}