fixed DnsDB data source

libsubfinder/engines/passive/passive.go

@@ -20,6 +20,7 @@ import (
 	"github.com/Ice3man543/subfinder/libsubfinder/sources/certdb"
 	"github.com/Ice3man543/subfinder/libsubfinder/sources/certspotter"
 	"github.com/Ice3man543/subfinder/libsubfinder/sources/crtsh"
+	"github.com/Ice3man543/subfinder/libsubfinder/sources/dnsdb"
 	"github.com/Ice3man543/subfinder/libsubfinder/sources/dnsdumpster"
 	"github.com/Ice3man543/subfinder/libsubfinder/sources/findsubdomains"
 	"github.com/Ice3man543/subfinder/libsubfinder/sources/hackertarget"
@@ -52,12 +53,13 @@ type Source struct {
 	Waybackarchive bool
 	Threatminer    bool
 	Riddler        bool
+	Dnsdb          bool
 
 	NoOfSources int
 }
 
 func PassiveDiscovery(state *helper.State) (finalPassiveSubdomains []string) {
-	sourceConfig := Source{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, 0}
+	sourceConfig := Source{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, 0}
 
 	fmt.Printf("\n")
 	if state.Sources == "all" {
@@ -78,10 +80,11 @@ func PassiveDiscovery(state *helper.State) (finalPassiveSubdomains []string) {
 			fmt.Printf("\n[-] Searching For Subdomains in WaybackArchive")
 			fmt.Printf("\n[-] Searching For Subdomains in ThreatMiner")
 			fmt.Printf("\n[-] Searching For Subdomains in Riddler")
-			fmt.Printf("\n[-] Searching For Subdomains in Netcraft\n")
+			fmt.Printf("\n[-] Searching For Subdomains in Netcraft")
+			fmt.Printf("\n[-] Searching For Subdomains in Dnsdb\n")			
 		}
 
-		sourceConfig = Source{true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, 15}
+		sourceConfig = Source{true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, 16}
 	} else {
 		// Check data sources and create a source configuration structure
 
@@ -177,6 +180,12 @@ func PassiveDiscovery(state *helper.State) (finalPassiveSubdomains []string) {
 				}
 				sourceConfig.Riddler = true
 				sourceConfig.NoOfSources = sourceConfig.NoOfSources + 1
+			} else if source == "dnsdb" {
+				if state.Silent != true {
+					fmt.Printf("\n[-] Searching For Subdomains in Dnsdb")
+				}
+				sourceConfig.Dnsdb = true
+				sourceConfig.NoOfSources = sourceConfig.NoOfSources +1
 			}
 		}
 	}
@@ -231,6 +240,9 @@ func PassiveDiscovery(state *helper.State) (finalPassiveSubdomains []string) {
 	if sourceConfig.Riddler == true {
 		go riddler.Query(state, ch)
 	}
+	if sourceConfig.Dnsdb == true {
+		go dnsdb.Query(state, ch)
+	}
 
 	// Recieve data from all goroutines running
 	for i := 0; i < sourceConfig.NoOfSources; i++ {

libsubfinder/sources/dnsdb/dnsdb.go

@@ -0,0 +1,63 @@
+//
+// Written By : @mehimansu (Himanshu Das)
+//
+// Distributed Under MIT License
+// Copyrights (C) 2018 Ice3man
+//
+
+// Golang driver from dnsdb.org
+package dnsdb
+
+import (
+	"fmt"
+	"io/ioutil"
+	"regexp"
+	"strings"
+
+	"github.com/Ice3man543/subfinder/libsubfinder/helper"
+)
+
+// all subdomains found
+var subdomains []string
+
+// Query function returns all subdomains found using the service.
+func Query(state *helper.State, ch chan helper.Result) {
+	var result helper.Result
+	result.Subdomains = subdomains
+
+	// Make a http request to DnsDB
+	resp, err := helper.GetHTTPResponse("http://www.dnsdb.org/f/"+state.Domain+".dnsdb.org/", state.Timeout)
+	if err != nil {
+		result.Error = err
+		ch <- result
+		return
+	}
+	// Get the response body
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		result.Error = err
+		ch <- result
+		return
+	}
+	src := string(body)
+	re := regexp.MustCompile("<a[^>]*?[^>]*>(.*?)</a>")
+	match := re.FindAllStringSubmatch(src, -1)
+	
+	for _, subdomain := range match {
+		string_split := strings.Split(subdomain[0], "\">")[1]
+		finishedSub := strings.TrimRight(string_split, "</a>")
+
+		if state.Verbose == true {
+			if state.Color == true {
+				fmt.Printf("\n[%sDNSDB%s] %s", helper.Red, helper.Reset, finishedSub)
+			} else {
+				fmt.Printf("\n[DNSDB] %s", finishedSub)
+			}
+		}
+
+		subdomains = append(subdomains, finishedSub)
+	}
+	result.Subdomains = subdomains
+	result.Error = nil
+	ch <- result
+}