websocket: move library files to root of module

vlib/net/websocket/utils.v

@@ -0,0 +1,55 @@
+module websocket
+
+import (
+	time
+	rand
+	math
+	crypto.sha1
+	encoding.base64
+)
+
+fn htonl64(payload_len u64) byteptr {
+	mut ret := malloc(8)
+
+	ret[0] = byte(((payload_len & (u64(0xff) << 56)) >> 56) & 0xff)
+	ret[1] = byte(((payload_len & (u64(0xff) << 48)) >> 48) & 0xff)
+	ret[2] = byte(((payload_len & (u64(0xff) << 40)) >> 40) & 0xff)
+	ret[3] = byte(((payload_len & (u64(0xff) << 32)) >> 32) & 0xff)
+	ret[4] = byte(((payload_len & (u64(0xff) << 24)) >> 24) & 0xff)
+	ret[5] = byte(((payload_len & (u64(0xff) << 16)) >> 16) & 0xff)
+	ret[6] = byte(((payload_len & (u64(0xff) << 8)) >> 8) & 0xff)
+	ret[7] = byte(((payload_len & (u64(0xff) << 0)) >> 0) & 0xff) 
+	return ret
+}
+
+fn create_masking_key() []byte {
+	t := time.ticks()
+	tseq := t % 23237671
+	mut rnd := rand.new_pcg32(u64(t), u64(tseq) )
+	mask_bit := byte(rnd.bounded_next(u32(math.max_i32)))
+	buf := [`0`].repeat(4)
+	C.memcpy(buf.data, &mask_bit, 4)
+	return buf
+}
+
+fn create_key_challenge_response(seckey string) string {
+	guid := "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
+	sha1buf := seckey + guid
+	hash := sha1.sum(sha1buf.bytes())
+	hashstr := string(byteptr(hash.data))
+	b64 := base64.encode(hashstr)
+	unsafe {
+		sha1buf.free()
+		hash.free()
+	}
+	return b64
+}
+
+fn get_nonce() string {
+	mut nonce := []byte
+	alphanum := "0123456789ABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvwxyz"
+	for i in 0..16 {
+		nonce << alphanum[rand.next(61)]
+	}
+	return string(byteptr(nonce.data))
+}