diff --git a/adapters/local/util.go b/adapters/local/util.go index 37e47db..c0c86d1 100644 --- a/adapters/local/util.go +++ b/adapters/local/util.go @@ -1,8 +1,6 @@ package adapters import ( - "bufio" - "bytes" "net" "net/http" "strconv" @@ -71,76 +69,3 @@ func parseHTTPAddr(request *http.Request) *C.Addr { Port: port, } } - -// ParserHTTPHostHeader returns the HTTP Host header from br without -// consuming any of its bytes. It returns "" if it can't find one. -func ParserHTTPHostHeader(br *bufio.Reader) (method, host string) { - // br := bufio.NewReader(bytes.NewReader(data)) - const maxPeek = 4 << 10 - peekSize := 0 - for { - peekSize++ - if peekSize > maxPeek { - b, _ := br.Peek(br.Buffered()) - return method, httpHostHeaderFromBytes(b) - } - b, err := br.Peek(peekSize) - if n := br.Buffered(); n > peekSize { - b, _ = br.Peek(n) - peekSize = n - } - if len(b) > 0 { - if b[0] < 'A' || b[0] > 'Z' { - // Doesn't look like an HTTP verb - // (GET, POST, etc). - return - } - if bytes.Index(b, crlfcrlf) != -1 || bytes.Index(b, lflf) != -1 { - println(string(b)) - req, err := http.ReadRequest(bufio.NewReader(bytes.NewReader(b))) - if err != nil { - return - } - if len(req.Header["Host"]) > 1 { - // TODO(bradfitz): what does - // ReadRequest do if there are - // multiple Host headers? - return - } - println(req.Host) - return req.Method, req.Host - } - } - if err != nil { - return method, httpHostHeaderFromBytes(b) - } - } -} - -var ( - lfHostColon = []byte("\nHost:") - lfhostColon = []byte("\nhost:") - crlf = []byte("\r\n") - lf = []byte("\n") - crlfcrlf = []byte("\r\n\r\n") - lflf = []byte("\n\n") -) - -func httpHostHeaderFromBytes(b []byte) string { - if i := bytes.Index(b, lfHostColon); i != -1 { - return string(bytes.TrimSpace(untilEOL(b[i+len(lfHostColon):]))) - } - if i := bytes.Index(b, lfhostColon); i != -1 { - return string(bytes.TrimSpace(untilEOL(b[i+len(lfhostColon):]))) - } - return "" -} - -// untilEOL returns v, truncated before the first '\n' byte, if any. -// The returned slice may include a '\r' at the end. -func untilEOL(v []byte) []byte { - if i := bytes.IndexByte(v, '\n'); i != -1 { - return v[:i] - } - return v -}