feat: upgrade terminal to xterm.js + WebSocket
- Rewrite terminal.js: xterm.js Terminal per tab, WebSocket per connection - Light theme terminal (Lumina: white bg, blue cursor, proper ANSI colors) - Alpine.js keeps tab management, xterm.js handles rendering - Each tab gets its own WebSocket to /terminal/ws/:hostID - Mock handler iterates chars (fixes multi-char xterm.js messages) - Sync mock commands with React template (help, ls, docker ps, etc.) - Add xterm.css custom scrollbar styles - terminal_content.html: xterm containers with Alpine show/hide per tab
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swanadiva
@@ -102,34 +102,34 @@ func mockTerminal(c *websocket.Conn, host string) {
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c.WriteMessage(websocket.TextMessage, []byte(welcome))
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prompt := fmt.Sprintf("\x1b[1;34m%s:~$\x1b[0m ", host)
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cwd := "~"
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c.WriteMessage(websocket.TextMessage, []byte(prompt))
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cwd := "~"
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buf := ""
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for {
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_, msg, err := c.ReadMessage()
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if err != nil {
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break
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}
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input := string(msg)
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switch {
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case input == "\r":
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output := handleCommand(buf, host, &cwd)
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c.WriteMessage(websocket.TextMessage, []byte(output+prompt))
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buf = ""
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case input == "\x7f":
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if len(buf) > 0 {
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buf = buf[:len(buf)-1]
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c.WriteMessage(websocket.TextMessage, []byte("\b \b"))
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}
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case input == "\x03":
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buf = ""
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c.WriteMessage(websocket.TextMessage, []byte("^C\r\n"+prompt))
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default:
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if input >= " " && input <= "~" {
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buf += input
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c.WriteMessage(websocket.TextMessage, []byte(input))
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for _, ch := range string(msg) {
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switch {
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case ch == '\r':
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output := handleCommand(buf, host, &cwd)
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c.WriteMessage(websocket.TextMessage, []byte(output+prompt))
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buf = ""
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case ch == '\x7f':
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if len(buf) > 0 {
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buf = buf[:len(buf)-1]
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c.WriteMessage(websocket.TextMessage, []byte("\b \b"))
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}
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case ch == '\x03':
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buf = ""
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c.WriteMessage(websocket.TextMessage, []byte("^C\r\n"+prompt))
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case ch >= ' ' && ch <= '~':
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buf += string(ch)
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c.WriteMessage(websocket.TextMessage, []byte(string(ch)))
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}
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}
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}
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@@ -148,41 +148,71 @@ func handleCommand(cmd, host string, cwd *string) string {
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return "\x1b[2J\x1b[H"
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case "exit", "logout":
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return "logout\r\n\x1b[2J\x1b[H\x1b[1;31mConnection closed.\x1b[0m\r\n"
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case "pwd":
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return *cwd + "\r\n"
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case "whoami":
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return "deploy\r\n"
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case "hostname":
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return host + "\r\n"
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case "date":
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return time.Now().Format("Mon Jan 2 15:04:05 MST 2006") + "\r\n"
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case "uptime":
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return fmt.Sprintf(" 13:42:17 up %d day, 1 user, load average: 0.08, 0.12, 0.10\r\n", 1+time.Now().Day()%30)
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case "uname":
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if len(parts) > 1 && parts[1] == "-a" {
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return fmt.Sprintf("Linux %s 6.8.0-45-generic #47-Ubuntu SMP PREEMPT x86_64 x86_64 x86_64 GNU/Linux\r\n", host)
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}
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return "Linux\r\n"
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case "help":
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return "HostKeeper Mock SSH Interactive Command Parser:\r\n" +
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" help - Display this support manifest list\r\n" +
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" ls - List contents of the current working directory\r\n" +
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" docker ps - List simulated running Docker containers on cluster\r\n" +
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" uname -a - Show operating system and machine kernel data\r\n" +
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" ping 8.8.8.8 - Probe network gateway performance\r\n" +
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" cat server.js - Output snippet of remote index server configuration\r\n" +
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" keychain - Query keychain credentials loaded for target session\r\n" +
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" clear - Wipe the terminal display buffer clean\r\n"
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case "ls":
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if *cwd == "~" || *cwd == "/home/deploy" {
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return "Documents Downloads projects config.yml README.md .env\r\n"
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return "drwxr-xr-x 3 root root 4096 Jul 6 12:00 controllers\r\n" +
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"drwxr-xr-x 2 root root 4096 Jul 6 12:00 models\r\n" +
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"drwxr-xr-x 2 root root 4096 Jul 6 12:00 routes\r\n" +
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"-rw-r--r-- 1 root root 280 Jul 6 11:34 .env\r\n" +
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"-rw-r--r-- 1 root root 1432 Jul 6 14:20 package.json\r\n" +
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"-rwxr-xr-x 1 root root 8412 Jul 6 15:43 server.js\r\n"
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}
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return "total 0\r\n"
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case "cd":
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if len(parts) > 1 { *cwd = parts[1] } else { *cwd = "~" }
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return ""
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case "docker ps":
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return "CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS\r\n" +
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"f87a2d12e9b0 node:18-alpine \"docker-entrypoint.s…\" 2 hours ago Up 2 hours 0.0.0.0:3000->3000/tcp\r\n" +
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"c23e84bf9211 postgres:15-alpine \"docker-entrypoint.s…\" 5 hours ago Up 5 hours 0.0.0.0:5432->5432/tcp\r\n" +
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"78da12b84e0c redis:7-alpine \"docker-entrypoint.s…\" 10 hours ago Up 10 hours 0.0.0.0:6379->6379/tcp\r\n"
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case "uname":
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if len(parts) > 1 && parts[1] == "-a" {
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return fmt.Sprintf("Linux %s 5.15.0-101-generic #111-Ubuntu SMP Wed Jul 6 21:27:00 UTC 2026 x86_64 GNU/Linux\r\n", host)
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}
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return "Linux\r\n"
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case "ping":
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return "64 bytes from 8.8.8.8: icmp_seq=1 ttl=116 time=12.4 ms\r\n" +
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"64 bytes from 8.8.8.8: icmp_seq=2 ttl=116 time=14.1 ms\r\n" +
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"64 bytes from 8.8.8.8: icmp_seq=3 ttl=116 time=11.8 ms\r\n" +
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"--- 8.8.8.8 ping statistics ---\r\n" +
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"3 packets transmitted, 3 received, 0% packet loss, rtt min/avg/max = 11.8/12.76/14.1 ms\r\n"
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case "cat":
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if len(parts) > 1 && parts[1] == "server.js" {
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return "const express = require(\"express\");\r\n" +
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"const app = express();\r\n" +
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"const PORT = process.env.PORT || 3000;\r\n" +
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"app.get(\"/api/health\", (req, res) => res.send({ status: \"healthy\" }));\r\n" +
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"app.listen(PORT, () => console.log(\"Server active on cluster ingress\"));\r\n"
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}
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if len(parts) > 1 {
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return fmt.Sprintf("\x1b[1;37m# Content of %s\x1b[0m\r\n(not implemented in mock shell)\r\n", parts[1])
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return fmt.Sprintf("# Content of %s\r\n(not implemented in mock shell)\r\n", parts[1])
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}
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return ""
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case "keychain":
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return "Keychain Credential Mapping Selected:\r\n" +
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" Active Key: id_ed25519_alex (ED25519 standard)\r\n" +
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" Encryption: AES-256 GCM cryptokey payload\r\n" +
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" Fingerprint: SHA256:7mP9K9+fVj5bW0vQ8zD1y2u3t4m5n6p7q8r9s0v1w2x\r\n"
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case "whoami":
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return "deploy\r\n"
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case "hostname":
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return host + "\r\n"
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case "pwd":
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return *cwd + "\r\n"
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case "echo":
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return strings.Join(parts[1:], " ") + "\r\n"
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case "ssh":
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return "\x1b[1;33mSSH forwarding not available in mock mode\x1b[0m\r\n"
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case "help":
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return "Available commands: clear, exit, pwd, whoami, hostname, date, uptime, uname, ls, cd, cat, echo, ssh, help\r\n"
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default:
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return fmt.Sprintf("\x1b[1;31m%s: command not found\x1b[0m\r\n", parts[0])
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return fmt.Sprintf("hostkeeper: command not found: \"%s\". Type \"help\" to view custom commands list.\r\n", parts[0])
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}
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}
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