123 lines
2.9 KiB
Go

package middleware
import (
"net/http"
"strconv"
"strings"
"github.com/aerogo/aero"
"github.com/aerogo/http/client"
"github.com/akyoto/color"
"github.com/animenotifier/notify.moe/arn"
"github.com/mssola/user_agent"
)
// UserInfo updates user related information after each request.
func UserInfo(next aero.Handler) aero.Handler {
return func(ctx aero.Context) error {
err := next(ctx)
// Ignore non-HTML requests
contentType := ctx.Response().Header("Content-Type")
if !strings.HasPrefix(contentType, "text/html") {
return nil
}
user := arn.GetUserFromContext(ctx)
// When there's no user logged in, nothing to update
if user == nil {
return nil
}
// Bind local variables and start a coroutine
ip := ctx.IP()
userAgent := ctx.Request().Header("User-Agent")
go updateUserInfo(ip, userAgent, user)
return err
}
}
// Update browser and OS data
func updateUserInfo(ip string, userAgent string, user *arn.User) {
if user.UserAgent != userAgent {
user.UserAgent = userAgent
// Parse user agent
parsed := user_agent.New(user.UserAgent)
// Browser
user.Browser.Name, user.Browser.Version = parsed.Browser()
// OS
os := parsed.OSInfo()
user.OS.Name = os.Name
user.OS.Version = os.Version
}
user.LastSeen = arn.DateTimeUTC()
user.Save()
if user.IP == ip {
return
}
updateUserLocation(user, ip)
}
// Updates the location of the user.
func updateUserLocation(user *arn.User, newIP string) {
user.IP = newIP
if arn.APIKeys.IPInfoDB.ID == "" {
if arn.IsProduction() {
color.Red("IPInfoDB key not defined")
}
return
}
locationAPI := "https://api.ipinfodb.com/v3/ip-city/?key=" + arn.APIKeys.IPInfoDB.ID + "&ip=" + user.IP + "&format=json"
response, err := client.Get(locationAPI).End()
if err != nil {
color.Red("Couldn't fetch location data | Error: %s | IP: %s", err.Error(), user.IP)
return
}
if response.StatusCode() != http.StatusOK {
color.Red("Couldn't fetch location data | Status: %d | IP: %s", response.StatusCode, user.IP)
return
}
newLocation := arn.IPInfoDBLocation{}
err = response.Unmarshal(&newLocation)
if err != nil {
color.Red("Couldn't deserialize location data | Status: %d | IP: %s", response.StatusCode, user.IP)
return
}
if newLocation.CountryName == "" || newLocation.CountryName == "-" {
return
}
user.Location.CountryName = newLocation.CountryName
user.Location.CountryCode = newLocation.CountryCode
user.Location.Latitude, _ = strconv.ParseFloat(newLocation.Latitude, 64)
user.Location.Longitude, _ = strconv.ParseFloat(newLocation.Longitude, 64)
user.Location.CityName = newLocation.CityName
user.Location.RegionName = newLocation.RegionName
user.Location.TimeZone = newLocation.TimeZone
user.Location.ZipCode = newLocation.ZipCode
// Make South Korea easier to read
if user.Location.CountryName == "Korea, Republic of" {
user.Location.CountryName = "South Korea"
}
user.Save()
}