chore: Create a resolver package

cmd/cli.go

@@ -67,6 +67,12 @@ func main() {
 			Usage:       "Network class of the DNS record to be queried (IN, CH, HS etc)",
 			Destination: qFlags.QClasses,
 		},
+		&cli.BoolFlag{
+			Name:        "https",
+			Usage:       "Use the DNS-over-HTTPS protocol",
+			Destination: &qFlags.IsDOH,
+			DefaultText: "udp",
+		},
 		&cli.BoolFlag{
 			Name:        "verbose",
 			Usage:       "Enable verbose logging",

cmd/hub.go

@@ -2,7 +2,7 @@ package main
 
 import (
 	"github.com/miekg/dns"
-	"github.com/mr-karan/doggo/pkg/resolve"
+	"github.com/mr-karan/doggo/pkg/resolvers"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
 )
@@ -13,7 +13,7 @@ type Hub struct {
 	Version    string
 	QueryFlags QueryFlags
 	Questions  []dns.Question
-	Resolver   *resolve.Resolver
+	Resolver   resolvers.Resolver
 }
 
 // QueryFlags is used store the value of CLI flags.
@@ -22,6 +22,10 @@ type QueryFlags struct {
 	QTypes      *cli.StringSlice
 	QClasses    *cli.StringSlice
 	Nameservers *cli.StringSlice
+	IsDOH       bool
+	IsDOT       bool
+	IsUDP       bool
+	IsTLS       bool
 }
 
 // NewHub initializes an instance of Hub which holds app wide configuration.

cmd/parse.go

@@ -1,11 +1,9 @@
 package main
 
 import (
-	"runtime"
 	"strings"
 
 	"github.com/miekg/dns"
-	"github.com/mr-karan/doggo/pkg/resolve"
 	"github.com/urfave/cli/v2"
 )
 
@@ -55,22 +53,3 @@ func (hub *Hub) loadFallbacks(c *cli.Context) {
 		hub.QueryFlags.QClasses.Set("IN")
 	}
 }
-
-// loadResolver checks
-func (hub *Hub) loadResolver(c *cli.Context) error {
-	if len(hub.QueryFlags.Nameservers.Value()) == 0 {
-		if runtime.GOOS == "windows" {
-			// TODO: Add a method for reading system default nameserver in windows.
-		} else {
-			rslvr, err := resolve.NewResolverFromResolvFile(resolve.DefaultResolvConfPath)
-			if err != nil {
-				return err
-			}
-			hub.Resolver = rslvr
-		}
-	} else {
-		rslvr := resolve.NewResolver(hub.QueryFlags.Nameservers.Value())
-		hub.Resolver = rslvr
-	}
-	return nil
-}

cmd/resolver.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"runtime"
+
+	"github.com/mr-karan/doggo/pkg/resolvers"
+	"github.com/urfave/cli/v2"
+)
+
+// loadResolver checks
+func (hub *Hub) loadResolver(c *cli.Context) error {
+	if len(hub.QueryFlags.Nameservers.Value()) == 0 {
+		if runtime.GOOS == "windows" {
+			// TODO: Add a method for reading system default nameserver in windows.
+		} else {
+			rslvr, err := resolvers.NewResolverFromResolvFile(resolvers.DefaultResolvConfPath)
+			if err != nil {
+				return err
+			}
+			hub.Resolver = rslvr
+		}
+	} else {
+		rslvr := resolvers.NewResolver(hub.QueryFlags.Nameservers.Value())
+		hub.Resolver = rslvr
+	}
+	return nil
+}