From aff3757618ab6c0739f2e1b7b118ef6360ae7321 Mon Sep 17 00:00:00 2001
From: exhq <exhqdev@proton.me>
Date: Sat, 8 Jun 2024 21:58:43 +0330
Subject: [PATCH] meow purrr :3

---
 go.mod                      |  3 +++
 src/helper/decorder.go      | 21 ++++++++++++++++++++
 src/helper/read.go          | 21 ++++++++++++++++++++
 src/helper/stringfuckery.go |  9 +++++++++
 src/main.go                 | 39 +++++++++++++++++++++++++++++++++++++
 5 files changed, 93 insertions(+)
 create mode 100644 go.mod
 create mode 100644 src/helper/decorder.go
 create mode 100644 src/helper/read.go
 create mode 100644 src/helper/stringfuckery.go
 create mode 100644 src/main.go

diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..93f7756
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module exhq.dev/mptp
+
+go 1.22.3
diff --git a/src/helper/decorder.go b/src/helper/decorder.go
new file mode 100644
index 0000000..412ebc6
--- /dev/null
+++ b/src/helper/decorder.go
@@ -0,0 +1,21 @@
+package helper
+
+import (
+	"regexp"
+	"strings"
+)
+
+func GetHeaders(rawMessage string) (map[string][]string, string) {
+	msgarr := strings.Split(rawMessage, "\n")
+	pattern := `^MPTP/\d\.\d HAIIII :3 (GIB|TAEK)$`
+	re := regexp.MustCompile(pattern)
+
+	// Check if msgarr[0] matches the pattern
+	if !re.MatchString(msgarr[0]) {
+		return nil, "wrong nuggets"
+	}
+
+	return map[string][]string{
+		"version": {strings.Split(msgarr[0], "HAIIII :3")[0]},
+	}, ""
+}
diff --git a/src/helper/read.go b/src/helper/read.go
new file mode 100644
index 0000000..a00d62e
--- /dev/null
+++ b/src/helper/read.go
@@ -0,0 +1,21 @@
+package helper
+
+import (
+	"bufio"
+	"bytes"
+)
+
+func ReadUntilNull(reader *bufio.Reader) ([]byte, error) {
+	var buf bytes.Buffer
+	for {
+		b, err := reader.ReadByte()
+		if err != nil {
+			return nil, err
+		}
+		if b == byte(rune(0)) {
+			break
+		}
+		buf.WriteByte(b)
+	}
+	return buf.Bytes(), nil
+}
diff --git a/src/helper/stringfuckery.go b/src/helper/stringfuckery.go
new file mode 100644
index 0000000..9663f2f
--- /dev/null
+++ b/src/helper/stringfuckery.go
@@ -0,0 +1,9 @@
+package helper
+
+func Ender() string {
+	return string(rune(0))
+}
+
+func ByteWithEnd(str string) []byte {
+	return append([]byte(str), byte(0))
+}
diff --git a/src/main.go b/src/main.go
new file mode 100644
index 0000000..c8d9413
--- /dev/null
+++ b/src/main.go
@@ -0,0 +1,39 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"net"
+	"strings"
+
+	"exhq.dev/mptp/src/helper"
+)
+
+func main() {
+	ln, err := net.Listen("tcp", ":8000")
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println("Listening on port 8000")
+	for {
+		conn, err := ln.Accept()
+		if err != nil {
+			log.Fatal(err)
+		}
+		message, err := helper.ReadUntilNull(bufio.NewReader(conn))
+		if err != nil {
+			log.Fatal(err)
+		}
+		header, er := helper.GetHeaders(string(message))
+		println("connected to: " + (conn.RemoteAddr().String()))
+		if er == "wrong nuggets" {
+			conn.Write(helper.ByteWithEnd("UR NUGGIES ARE INVALID >:3"))
+			continue
+		}
+		if strings.TrimSpace(strings.Join(header["version"], "")) != "MPTP/0.1" {
+			conn.Write(helper.ByteWithEnd("i... don know that language >M<"))
+		}
+		conn.Write([]byte("meoww :3\nhiiii" + string(rune(0))))
+	}
+}