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package middleware
import (
"encoding/json"
"net/http"
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"strconv"
"strings"
"github.com/aerogo/aero"
"github.com/animenotifier/arn"
"github.com/animenotifier/notify.moe/utils"
"github.com/fatih/color"
"github.com/mssola/user_agent"
"github.com/parnurzeal/gorequest"
)
// UserInfo updates user related information after each request.
func UserInfo() aero.Middleware {
return func(ctx *aero.Context, next func()) {
next()
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// Ignore non-HTML requests
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if ctx.IsMediaResponse() {
return
}
// Ignore API requests
if strings.HasPrefix(ctx.URI(), "/api/") {
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return
}
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user := utils.GetUser(ctx)
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// When there's no user logged in, nothing to update
if user == nil {
return
}
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// This works asynchronously so it doesn't block the response
go updateUserInfo(ctx, user)
}
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}
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// Update browser and OS data
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func updateUserInfo(ctx *aero.Context, user *arn.User) {
newIP := ctx.RealIP()
newUserAgent := ctx.UserAgent()
if user.UserAgent != newUserAgent {
user.UserAgent = newUserAgent
// 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
}
if user.IP != newIP {
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updateUserLocation(user, newIP)
}
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user.LastSeen = arn.DateTimeUTC()
user.Save()
}
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// Updates the location of the user.
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func updateUserLocation(user *arn.User, newIP string) {
user.IP = newIP
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locationAPI := "https://api.ipinfodb.com/v3/ip-city/?key=" + arn.APIKeys.IPInfoDB.ID + "&ip=" + user.IP + "&format=json"
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response, data, err := gorequest.New().Get(locationAPI).EndBytes()
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if len(err) > 0 && err[0] != nil {
color.Red("Couldn't fetch location data | Error: %s | IP: %s", err[0].Error(), user.IP)
return
}
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if response.StatusCode != http.StatusOK {
color.Red("Couldn't fetch location data | Status: %d | IP: %s", response.StatusCode, user.IP)
return
}
newLocation := arn.IPInfoDBLocation{}
json.Unmarshal(data, &newLocation)
if newLocation.CountryName != "-" {
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
}
}