initial commit

ip_api.go

@@ -0,0 +1,56 @@
+package main
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+// Build URL to query IP-API
+// https://ip-api.com/docs/api:json
+func buildURL(ip string) string {
+	return "http://ip-api.com/json/" + ip
+}
+
+func Lookup(ip string, properties []string) map[string]interface{} {
+	CheckValidIP(ip)
+	url := buildURL(ip)
+	resp, err := http.Get(url)
+
+	if err != nil {
+		debugOut(Error, err.Error())
+	}
+	defer resp.Body.Close()
+
+	var data map[string]interface{}
+	err = json.NewDecoder(resp.Body).Decode(&data)
+	if err != nil {
+		debugOut(Error, err.Error())
+	}
+	if data["status"] == "fail" {
+		debugOut(Error, data["message"].(string))
+	}
+	return data
+}
+
+func GetProperties(data map[string]interface{}) string {
+
+	var output string = ""
+
+	for _, property := range properties {
+		found := false
+		for key, value := range data {
+			if key == property {
+				if output != "" {
+					output += ","
+				}
+				output += value.(string)
+				found = true
+			}
+		}
+		if !found {
+			debugOut(Error, "Property '"+property+"' not found")
+		}
+	}
+
+	return output
+}