whatismyip/router/geo.go

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2021-11-10 19:06:12 +00:00
package router
import (
"fmt"
"net"
"net/http"
"sort"
"strings"
"github.com/dcarrillo/whatismyip/models"
"github.com/dcarrillo/whatismyip/service"
"github.com/gin-gonic/gin"
)
type geoDataFormatter struct {
title string
format func(*models.GeoRecord) string
}
type asnDataFormatter struct {
title string
format func(*models.ASNRecord) string
}
var geoOutput = map[string]geoDataFormatter{
"country": {
title: "Country",
format: func(record *models.GeoRecord) string {
return record.Country.Names["en"]
},
},
"country_code": {
title: "Country Code",
format: func(record *models.GeoRecord) string {
return record.Country.ISOCode
},
},
"city": {
title: "City",
format: func(record *models.GeoRecord) string {
return record.City.Names["en"]
},
},
"latitude": {
title: "Latitude",
format: func(record *models.GeoRecord) string {
return fmt.Sprintf("%f", record.Location.Latitude)
},
},
"longitude": {
title: "Longitude",
format: func(record *models.GeoRecord) string {
return fmt.Sprintf("%f", record.Location.Longitude)
},
},
"postal_code": {
title: "Postal Code",
format: func(record *models.GeoRecord) string {
return record.Postal.Code
},
},
"time_zone": {
title: "Time Zone",
format: func(record *models.GeoRecord) string {
return record.Location.TimeZone
},
},
}
var asnOutput = map[string]asnDataFormatter{
"number": {
title: "ASN Number",
format: func(record *models.ASNRecord) string {
return fmt.Sprintf("%d", record.AutonomousSystemNumber)
},
},
"organization": {
title: "ASN Organization",
format: func(record *models.ASNRecord) string {
return record.AutonomousSystemOrganization
},
},
}
func getGeoAsString(ctx *gin.Context) {
field := strings.ToLower(ctx.Params.ByName("field"))
ip := service.Geo{IP: net.ParseIP(ctx.ClientIP())}
record := ip.LookUpCity()
if field == "" {
ctx.String(http.StatusOK, geoCityRecordToString(record))
} else if g, ok := geoOutput[field]; ok {
ctx.String(http.StatusOK, g.format(record))
} else {
ctx.String(http.StatusNotFound, http.StatusText(http.StatusNotFound))
}
}
func getASNAsString(ctx *gin.Context) {
field := strings.ToLower(ctx.Params.ByName("field"))
ip := service.Geo{IP: net.ParseIP(ctx.ClientIP())}
record := ip.LookUpASN()
if field == "" {
ctx.String(http.StatusOK, geoASNRecordToString(record))
} else if g, ok := asnOutput[field]; ok {
ctx.String(http.StatusOK, g.format(record))
} else {
ctx.String(http.StatusNotFound, http.StatusText(http.StatusNotFound))
}
}
func geoCityRecordToString(record *models.GeoRecord) string {
var output string
keys := make([]string, 0, len(geoOutput))
for k := range geoOutput {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
output += fmt.Sprintf("%s: %v\n", geoOutput[k].title, geoOutput[k].format(record))
}
return output
}
func geoASNRecordToString(record *models.ASNRecord) string {
var output string
keys := make([]string, 0, len(asnOutput))
for k := range asnOutput {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
output += fmt.Sprintf("%s: %v\n", asnOutput[k].title, asnOutput[k].format(record))
}
return output
}