Adding http request validation at compile time (#2193)

* Adding http request validation at compile time

* misc update

Co-authored-by: sandeep <sandeep@projectdiscovery.io>

v2/pkg/protocols/http/http.go

@@ -226,6 +226,10 @@ func (request *Request) isRaw() bool {
 
 // Compile compiles the protocol request for further execution.
 func (request *Request) Compile(options *protocols.ExecuterOptions) error {
+	if err := request.validate(); err != nil {
+		return errors.Wrap(err, "validation error")
+	}
+
 	connectionConfiguration := &httpclientpool.Configuration{
 		Threads:         request.Threads,
 		MaxRedirects:    request.MaxRedirects,

v2/pkg/protocols/http/validate.go

@@ -0,0 +1,11 @@
+package http
+
+import "github.com/pkg/errors"
+
+func (request *Request) validate() error {
+	if request.Race && request.ReqCondition {
+		return errors.New("'race' and 'req-condition' can't be used together")
+	}
+
+	return nil
+}