IP based geolocation using the IPInfoDB web service

scripts/ip-geolocation-ipinfodb.nse

@@ -0,0 +1,61 @@
+description = [[
+This script looks up the host's IP address using the IPInfoDB geolocation web 
+service. There is no limit on requests to this service. However, the API key 
+used is obtained through a free registration with the service.
+]]
+
+---
+-- @usage
+-- nmap --script ip-geolocation-ipinfodb <target>
+--
+-- @output
+-- | ip-geolocation-ipinfodb:
+-- | 74.207.244.221 (scanme.nmap.org)
+-- |   coordinates (lat,lon): 37.5384,-121.99
+-- |_  city: FREMONT, CALIFORNIA, UNITED STATES
+--
+
+author = "Gorjan Petrovski"
+license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
+categories = {"discovery","external","safe"}
+
+require "stdnse"
+require "ipOps"
+require "json"
+require "http"
+
+hostrule = function(host)
+	local is_private, err = ipOps.isPrivate( host.ip )
+    if is_private == nil then
+      stdnse.print_debug( "%s Error in Hostrule: %s.", SCRIPT_NAME, err )
+      return false
+    end
+    return not is_private
+end
+
+-- No limit on requests. A free registration for an API key is a prerequisite
+local ipinfodb = function(ip)
+	local api_key = "430ff90c5bf74d71db87f156837ffd7c67725927271c95f650a6ae994342b57f"
+	local response = http.get("api.ipinfodb.com", 80, "/v3/ip-city/?key="..api_key.."&format=json".."&ip="..ip, nil)
+	local stat, loc = json.parse(response.body)
+	if not stat then return nil end
+	
+	local output = {}
+ 	table.insert(output, "coordinates (lat,lon): "..loc.latitude..","..loc.longitude)
+	table.insert(output,"city: ".. loc.cityName..", ".. loc.regionName..", ".. loc.countryName)
+	
+	return output
+end
+
+action = function(host,port)
+	local output = ipinfodb(host.ip)
+	
+	if(#output~=0) then 
+		output.name = host.ip 
+		if host.targetname then
+			output.name = output.name.." ("..host.targetname..")" 
+		end
+	end
+	
+	return stdnse.format_output(true,output)
+end