Added support for io.ReadAll on requests

Request.go

@@ -3,6 +3,8 @@ package web
 import (
 	"bufio"
 	"io"
+	"strconv"
+	"strings"
 
 	"git.urbach.dev/go/router"
 )
@@ -20,20 +22,22 @@ type Request interface {
 
 // request represents the HTTP request used in the given context.
 type request struct {
-	bufio.Reader
-	scheme  string
-	host    string
-	method  string
-	path    string
-	query   string
-	headers []Header
-	params  []router.Parameter
+	reader   bufio.Reader
+	scheme   string
+	host     string
+	method   string
+	path     string
+	query    string
+	headers  []Header
+	params   []router.Parameter
+	length   int
+	consumed int
 }
 
 // Header returns the header value for the given key.
 func (req *request) Header(key string) string {
 	for _, header := range req.headers {
-		if header.Key == key {
+		if strings.EqualFold(header.Key, key) {
 			return header.Value
 		}
 	}
@@ -69,6 +73,26 @@ func (req *request) Path() string {
 	return req.path
 }
 
+// Read implements the io.Reader interface.
+func (req *request) Read(p []byte) (n int, err error) {
+	if req.length == 0 {
+		req.length, _ = strconv.Atoi(req.Header("Content-Length"))
+
+		if req.length == 0 {
+			return 0, io.EOF
+		}
+	}
+
+	n, err = req.reader.Read(p)
+	req.consumed += n
+
+	if req.consumed < req.length {
+		return n, err
+	}
+
+	return n - (req.consumed - req.length), io.EOF
+}
+
 // Scheme returns either `http`, `https` or an empty string.
 func (req request) Scheme() string {
 	return req.scheme