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|
package main
import (
"bufio"
"bytes"
"fmt"
"io"
)
type RequestReader struct {
scanner *bufio.Scanner
lineBuf []byte
}
func (r *RequestReader) read() ([]byte, error) {
ok := r.scanner.Scan()
if !ok {
err := r.scanner.Err()
if err == nil {
err = io.EOF
}
return nil, err
}
return r.scanner.Bytes(), nil
}
func (r *RequestReader) line() ([]byte, error) {
if r.lineBuf == nil {
lineBuf, err := r.read()
if err != nil {
return nil, err
}
r.lineBuf = lineBuf
}
return r.lineBuf, nil
}
func (r *RequestReader) element(index int) ([]byte, error) {
line, err := r.line()
if err != nil {
return nil, err
}
return bytes.Split(line, []byte(" "))[index], nil
}
func (r *RequestReader) Method() (string, error) {
fmt.Println("Reading method...")
element, err := r.element(0)
if err != nil {
return "", err
}
return string(element), nil
}
func (r *RequestReader) Target() (string, error) {
fmt.Println("Reading target...")
element, err := r.element(1)
if err != nil {
return "", err
}
return string(element), nil
}
func NewRequestReader(reader io.Reader) *RequestReader {
return &RequestReader{
scanner: bufio.NewScanner(reader),
}
}
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