allow for bare LF line endings in spartan

spartan/request.go

@@ -32,21 +32,19 @@ func ParseRequest(rdr io.Reader) (*types.Request, int, error) {
 	if err != io.EOF && err != nil {
 		return nil, 0, err
 	}
+	line = strings.TrimSuffix(line, "\n")
+	line = strings.TrimSuffix(line, "\r")
 
 	host, rest, ok := strings.Cut(line, " ")
 	if !ok {
 		return nil, 0, InvalidRequestLine
 	}
 	path, rest, ok := strings.Cut(rest, " ")
-	if !ok {
+	if !ok || len(rest) == 0 {
 		return nil, 0, InvalidRequestLine
 	}
 
-	if len(rest) < 2 || line[len(line)-2:] != "\r\n" {
-		return nil, 0, InvalidRequestLineEnding
-	}
-
-	contentlen, err := strconv.Atoi(rest[:len(rest)-2])
+	contentlen, err := strconv.Atoi(rest)
 	if err != nil {
 		return nil, 0, err
 	}