ws/internal/http/upgrade/request/parser/header/public.go

41 lines
1.0 KiB
Go

package header
import (
// "regexp"
"fmt"
"strings"
"bytes"
)
// parse tries to return a 'T' (httpHeader) from a byte array
func Parse(b []byte) (*T, error) {
/* (1) Split by ':' */
parts := bytes.Split(b, []byte(": "))
if len(parts) != 2 {
return nil, fmt.Errorf("Invalid HTTP header format '%s'", b)
}
/* (2) Create instance */
inst := new(T)
/* (3) Check for header name */
switch strings.ToLower(string(parts[0])) {
case "host": inst.Name = HOST
case "upgrade": inst.Name = UPGRADE
case "connection": inst.Name = CONNECTION
case "origin": inst.Name = ORIGIN
case "sec-websocket-key": inst.Name = WSKEY
case "sec-websocket-protocol": inst.Name = WSPROTOCOL
case "sec-websocket-extensions": inst.Name = WSEXTENSIONS
case "sec-websocket-version": inst.Name = WSVERSION
default: inst.Name = UNKNOWN
}
/* (4) Split values */
inst.Values = bytes.Split(parts[1], []byte(", "))
return inst, nil
}