1 files changed, 70 insertions, 0 deletions
diff --git a/pkg/server/utils/encode.go b/pkg/server/utils/encode.go
new file mode 100644
index 0000000..86e5500
--- /dev/null
+++ b/pkg/server/utils/encode.go
@@ -0,0 +1,70 @@
+// Copyright (C) 2021-2021 The Whirlsplash Collective
+// SPDX-License-Identifier: GPL-3.0-only
+
+package utils
+
+const (
+	AutoServer = iota
+	RoomServer
+)
+
+func EncodeSessionInitialization(username string, password string, serverType int) []byte {
+	data := ""
+
+	// Data length
+	if serverType == AutoServer {
+		data += "\x2b"
+	} else {
+		data += "\x2c"
+	}
+
+	// Command header and other stuff we don't need to worry about
+	data += "\x01\x06\x03\x02\x32\x34\x09\x0a\x32\x30\x32\x30\x30\x33\x31" +
+		"\x32\x30\x30"
+
+	if serverType == RoomServer {
+		data += "\x07\x02\x32\x34"
+	}
+
+	data +=
+		// Username
+		"\x02" + string(rune(len(username))) + ISO88591ToString(username) +
+
+			// Password
+			"\x06" + string(rune(len(password))) + ISO88591ToString(password)
+
+	if serverType == AutoServer {
+		data += "\x0c\x01\x31"
+	}
+
+	return []byte(data)
+}
+
+func EncodeBuddyListUpdate(buddy string) []byte {
+	// Command header
+	data := "\x01\x1d"
+
+	// Buddy UTF-8 length and UTF-8
+	data += string(rune(len(buddy))) + ISO88591ToString(buddy)
+
+	// Buddy "add"
+	data += "\x01"
+
+	// Data length
+	data = (string(rune(len(data) + 1))) + data
+
+	return []byte(data)
+}
+
+func EncodePropertyUpdate(avatar string) []byte {
+	// Command header and extra stuff we don't need to worry about
+	data := "\x01\x0f\x00\x05\x40\x01"
+
+	// Avatar UTF-8 length and UTF-8
+	data += string(rune(len("avatar:"+avatar))) + ISO88591ToString("avatar:"+avatar)
+
+	// Data length
+	data = (string(rune(len(data) + 1))) + data
+
+	return []byte(data)
+}