- Included maps

- Modified main.go to use env.PORT if set

cmd/echoip/main.go

@@ -48,7 +48,7 @@ func main() {
 		log.Printf("Trusting header(s) %+v to contain correct remote IP", opts.IPHeaders)
 	}
 
-	log.Printf("Listening on http://%s", opts.Listen)
+	log.Printf("Listening on http://%s", process.env.PORT || opts.Listen)
 	if err := server.ListenAndServe(opts.Listen); err != nil {
 		log.Fatal(err)
 	}

http/http.go

@@ -98,15 +98,19 @@ func (s *Server) newResponse(r *http.Request) (Response, error) {
 		hostname, _ = s.LookupAddr(ip)
 	}
 	return Response{
-		IP:         ip,
-		IPDecimal:  ipDecimal,
-		Country:    country.Name,
-		CountryISO: country.ISO,
-		CountryEU:  country.IsEU,
-		City:       city.Name,
-		Hostname:   hostname,
-		Latitude:   city.Latitude,
-		Longitude:  city.Longitude,
+		IP:           ip,
+		IPDecimal:    ipDecimal,
+		Country:      country.Name,
+		CountryISO:   country.ISO,
+		CountryEU:    country.IsEU,
+		City:         city.Name,
+		Hostname:     hostname,
+		Latitude:     city.Latitude,
+		Longitude:    city.Longitude,
+        BoxLatTop:    city.Latitude + 0.10,
+        BoxLatBottom: city.Latitude - 0.10,
+        BoxLonLeft:   city.Longitude - 0.10,
+        BoxLonRight:  city.Longitude + 0.10,
 	}, nil
 }
 

index.html

@@ -97,6 +97,11 @@ $ http {{ .Host }}/port/8080
 }</pre>
 {{ end }}
       </div>
+{{ if .City }}      
+      <div class="pure-u-1 pure-u-md-1-1">
+          <iframe width="100%" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://www.openstreetmap.org/export/embed.html?bbox={{ .BoxLonLeft }}%2C{{ .BoxLatBottom }}%2C{{ .BoxLonRight }}%2C{{ .BoxLatTop }}&amp;layer=mapnik&amp;marker={{ .Latitude }}%2C{{ .Longitude }}" style="border: 1px solid black"></iframe>
+      </div>
+{{ end }}      
       <div class="pure-u-1 pure-u-md-1-2">
         <h2>FAQ</h2>
         <h3>How do I force IPv4 or IPv6 lookup?</h3>