Added request methods

http.go

@@ -0,0 +1,47 @@
+package web
+
+import "strings"
+
+// header is used to store HTTP headers.
+type header struct {
+	Key   string
+	Value string
+}
+
+// isRequestMethod returns true if the given string is a valid HTTP request method.
+func isRequestMethod(method string) bool {
+	switch method {
+	case "GET", "HEAD", "POST", "PUT", "DELETE", "CONNECT", "OPTIONS", "TRACE", "PATCH":
+		return true
+	default:
+		return false
+	}
+}
+
+// parseURL parses a URL and returns the scheme, host, path and query.
+func parseURL(url string) (scheme string, host string, path string, query string) {
+	schemePos := strings.Index(url, "://")
+
+	if schemePos != -1 {
+		scheme = url[:schemePos]
+		url = url[schemePos+len("://"):]
+	}
+
+	pathPos := strings.IndexByte(url, '/')
+
+	if pathPos != -1 {
+		host = url[:pathPos]
+		url = url[pathPos:]
+	}
+
+	queryPos := strings.IndexByte(url, '?')
+
+	if queryPos != -1 {
+		path = url[:queryPos]
+		query = url[queryPos+1:]
+		return
+	}
+
+	path = url
+	return
+}