Added banners + ui

pkg/runner/banners.go

@@ -1,6 +1,9 @@
 package runner
 
-import "github.com/subfinder/subfinder/pkg/log"
+import (
+	"github.com/subfinder/subfinder/pkg/log"
+	"github.com/subfinder/subfinder/pkg/resolve"
+)
 
 const banner = `
         _     __ _         _         
@@ -39,12 +42,16 @@ func (options *Options) firstRunTasks() {
 
 	// Create the configuration file and display information
 	// about it to the user.
-	config := ConfigFile{}
+	config := ConfigFile{
+		// Use the default list of resolvers by marshalling it to the config
+		Resolvers: resolve.DefaultResolvers,
+	}
 
 	err := config.MarshalWrite(options.ConfigFile)
 	if err != nil {
 		log.Fatalf("Could not write configuration file to %s: %s\n", options.ConfigFile, err)
 	}
+	options.YAMLConfig = config
 
 	log.Infof("Configuration file saved to %s\n", options.ConfigFile)
 }

pkg/runner/options.go

@@ -23,11 +23,8 @@ type Options struct {
 	HostIP              bool   // HostIP specifies whether to write subdomains in host:ip format
 	Silent              bool   // Silent suppresses any extra text and only writes subdomains to screen
 	Sources             string // Sources contains a comma-separated list of sources to use for enumeration
-	sourcesSlice        []string // unmarshaled list of sources
 	ExcludeSources      string // ExcludeSources contains the comma-separated sources to not include in the enumeration process
-	excludeSourcesSlice []string // unmarshaled list of excluded sources
 	Resolvers           string // Resolvers is the comma-separated resolvers to use for enumeration
-	resolversSlice      []string // unmarshaled list of resolvers
 	ResolverList        string // ResolverList is a text file containing list of resolvers to use for enumeration
 	RemoveWildcard      bool   // RemoveWildcard specifies whether to remove potential wildcard or dead subdomains from the results.
 	UnauthenticatedOnly bool   // UnauthenticatedOnly specifies to run enumeration using only sources that do not require an API key
@@ -85,6 +82,13 @@ func ParseOptions() *Options {
 		options.normalRunTasks()
 	}
 
+	// Validate the options passed by the user and if any
+	// invalid options have been used, exit.
+	err = options.validateOptions()
+	if err != nil {
+		log.Fatalf("Program exiting: %s\n", err)
+	}
+
 	return options
 }