alfheim-website/cmd/web/handlers.go

566 lines
14 KiB
Go

//
// Created by vfs on 02.05.2024.
//
package main
import (
"encoding/json"
"errors"
"fmt"
"html/template"
"io"
"log"
"net/http"
"runtime/debug"
"strings"
"unicode/utf8"
"github.com/stripe/stripe-go/v83"
"github.com/stripe/stripe-go/v83/billingportal/session"
"github.com/stripe/stripe-go/v83/customer"
"github.com/stripe/stripe-go/v83/customersession"
"github.com/stripe/stripe-go/v83/price"
"github.com/stripe/stripe-go/v83/subscription"
"github.com/stripe/stripe-go/v83/webhook"
"alfheimgame.com/alfheim/pkg/models"
)
//import "strconv"
type TemplateData struct {
AuthenticatedUser int32
FormErrors map[string]string
Account models.Account
Prices []stripe.Price
ClientSecret string
ActiveSubscription bool
}
func favicon(w http.ResponseWriter, r *http.Request) {
http.ServeFile(w, r, "favicon.ico")
}
func authenticatedUser(w http.ResponseWriter, r *http.Request) int32 {
session, err := store.Get(r, "id")
if err != nil {
log.Println(err)
return 0
}
id, ok := session.Values["id"].(int32)
if !ok {
trace := fmt.Sprintf("%s\n%s", errors.New("type assertion to int32 failed").Error(), debug.Stack())
_ = trace
//log.Println(trace)
return 0
}
// check if the saved id exists in the database, otherwise it's a bad id and has to be removed from the cookies
exists := users.ExistsAccount(id)
if !exists {
session, _ := store.Get(r, "id")
session.Values["id"] = 0
session.Save(r, w)
return 0
}
return id
}
func home(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
id := authenticatedUser(w, r)
account, _ := users.GetAccount(id)
active_subscription := subscriptions.HasActiveSubscription(id)
text, err := template.ParseFiles("ui/html/base.html", "ui/html/index.html")
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Println(err)
}
switch r.Method {
case http.MethodGet:
err := text.Execute(w, TemplateData{AuthenticatedUser: id, Account: account, ActiveSubscription: active_subscription})
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
case http.MethodPost:
err := text.Execute(w, TemplateData{})
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
}
}
func login(w http.ResponseWriter, r *http.Request) {
text, err := template.ParseFiles("ui/html/base.html", "ui/html/login.html")
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Fatal(err)
}
switch r.Method {
case http.MethodGet:
err := text.Execute(w, TemplateData{})
if err != nil {
log.Fatal(err)
http.Error(w, "Internal Server Error", 500)
}
case http.MethodPost:
session, _ := store.Get(r, "id")
password := r.FormValue("password")
username := r.FormValue("username")
errors := make(map[string]string)
if strings.TrimSpace(username) == "" {
errors["username"] = "This field cannot be blank"
} else if utf8.RuneCountInString(username) > 20 {
errors["username"] = "This field is too long (the maximum is 20 characters)"
}
if strings.TrimSpace(password) == "" {
errors["password"] = "This field cannot be blank"
} else if utf8.RuneCountInString(password) < 8 {
errors["password"] = "This field is too short (the minimum is 8 characters)"
}
if len(errors) > 0 {
err := text.Execute(w, TemplateData{AuthenticatedUser: authenticatedUser(w, r), FormErrors: errors})
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
return
}
id, err := users.Authenticate(username, password)
if err == models.ErrInvalidCredentials {
errors["generic"] = "Email or Password is incorrect"
err := text.Execute(w, TemplateData{AuthenticatedUser: authenticatedUser(w, r), FormErrors: errors})
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
return
}
if id > 0 {
session.Values["id"] = id
//log.Println("Logged in with id:", id)
session.Save(r, w)
http.Redirect(w, r, "/account", http.StatusSeeOther)
}
}
}
func logout(w http.ResponseWriter, r *http.Request) {
text, err := template.ParseFiles("ui/html/base.html", "ui/html/logout.html")
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Println(err)
}
id := authenticatedUser(w, r)
account, err := users.GetAccount(id)
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Println(err)
}
activesubscription := subscriptions.HasActiveSubscription(id)
switch r.Method {
case http.MethodGet:
err := text.Execute(w, TemplateData{AuthenticatedUser: id, Account: account, ActiveSubscription: activesubscription})
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
case http.MethodPost:
session, _ := store.Get(r, "id")
session.Values["id"] = 0
session.Save(r, w)
http.Redirect(w, r, "/", http.StatusSeeOther)
}
}
func register(w http.ResponseWriter, r *http.Request) {
text, err := template.ParseFiles("ui/html/base.html", "ui/html/register.html")
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Println(err)
}
id := authenticatedUser(w, r)
account, _ := users.GetAccount(id)
// if err != nil {
// http.Error(w, "Internal Server Error", 500)
// log.Println(err)
// }
switch r.Method {
case http.MethodGet:
err := text.Execute(w, TemplateData{AuthenticatedUser: id, Account: account})
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
case http.MethodPost:
account := models.Account{Username: r.FormValue("username"), Password: []byte(r.FormValue("password")), Firstname: r.FormValue("firstname"), Lastname: r.FormValue("lastname"), Email: r.FormValue("email")}
errors := make(map[string]string)
if strings.TrimSpace(account.Username) == "" {
errors["username"] = "This field cannot be blank"
} else if utf8.RuneCountInString(account.Username) > 20 {
errors["username"] = "This field is too long (the maximum is 20 characters)"
}
if strings.TrimSpace(string(account.Password)) == "" {
errors["password"] = "This field cannot be blank"
} else if utf8.RuneCountInString(string(account.Password)) < 8 {
errors["password"] = "This field is too short (the minimum is 8 characters)"
}
if len(errors) > 0 {
err := text.Execute(w, TemplateData{AuthenticatedUser: authenticatedUser(w, r), FormErrors: errors})
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
}
_, err := users.Insert(account.Username, string(account.Password), account.Firstname, account.Lastname, account.Email)
if err == models.ErrDuplicateEmail || err == models.ErrDuplicateUsername {
} else if err != nil {
}
http.Redirect(w, r, "/login", http.StatusSeeOther)
}
}
func account(w http.ResponseWriter, r *http.Request) {
//id, err := strconv.Atoi(r.URL.Query().Get("id"))
//if err != nil || id < 1 {
// http.NotFound(w, r)
// return
//}
//account, err := users.Get_account(int32(id))
//if err != nil {
// log.Fatal(err)
//}
id := authenticatedUser(w, r)
account, err := users.GetAccount(id)
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Println(err)
}
//log.Println(id, account)
text, err := template.ParseFiles("ui/html/base.html", "ui/html/account.html")
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Println(err)
}
switch r.Method {
case http.MethodGet:
err := text.Execute(w, TemplateData{AuthenticatedUser: id, Account: account})
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
}
//case http.MethodPost:
// text.Execute(w, false)
// if err != nil {
// log.Fatal(err)
// http.Error(w, "Internal Server Error", 500)
// }
}
func deleteAccount(w http.ResponseWriter, r *http.Request) {
id := authenticatedUser(w, r)
switch r.Method {
case http.MethodPost:
log.Println("Deleting account with id ", id)
users.Delete(id)
session, err := store.Get(r, "id")
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
session.Values["id"] = 0
session.Save(r, w)
http.Redirect(w, r, "/", http.StatusSeeOther)
}
}
func subscribe(w http.ResponseWriter, r *http.Request) {
id := authenticatedUser(w, r)
account, err := users.GetAccount(id)
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Println(err)
}
params := &stripe.PriceListParams{}
params.Limit = stripe.Int64(3)
params.AddExpand("data.product")
results := price.List(params)
prices := make([]stripe.Price, 0)
for results.Next() {
//log.Println(results.Current())
prices = append(prices, *results.Price())
}
fm := template.FuncMap{
"divide": func(a, b float64) float64 {
return a / b
},
}
text, err := template.New("base.html").Funcs(fm).ParseFiles("ui/html/base.html", "ui/html/subscribe.html")
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Println(err)
return
}
err = text.Execute(w, TemplateData{AuthenticatedUser: id, Account: account, Prices: prices})
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
}
func subscribeStripe(w http.ResponseWriter, r *http.Request) {
id := authenticatedUser(w, r)
account, err := users.GetAccount(id)
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Println(err)
}
params := &stripe.CustomerSessionParams{
Customer: stripe.String(account.StripeID),
Components: &stripe.CustomerSessionComponentsParams{
PricingTable: &stripe.CustomerSessionComponentsPricingTableParams{
Enabled: stripe.Bool(true),
},
},
}
result, err := customersession.New(params)
if err != nil {
log.Println(err)
}
text, err := template.ParseFiles("ui/html/base.html", "ui/html/subscribe_stripe.html")
if err != nil {
http.Error(w, "Internal Server Error", 500)
log.Println(err)
}
err = text.Execute(w, TemplateData{AuthenticatedUser: id, Account: account, ClientSecret: result.ClientSecret})
if err != nil {
log.Println(err)
http.Error(w, "Internal Server Error", 500)
}
}
func manageBilling(w http.ResponseWriter, r *http.Request) {
id := authenticatedUser(w, r)
account, err := users.GetAccount(id)
if err != nil {
log.Println(err)
}
params := &stripe.BillingPortalSessionParams{
Customer: stripe.String(account.StripeID),
ReturnURL: stripe.String("https://alfheimgame.com/account"),
}
result, err := session.New(params)
if err != nil {
log.Println(err)
}
http.Redirect(w, r, result.URL, http.StatusSeeOther)
}
func webhooks(w http.ResponseWriter, r *http.Request) {
const MaxBodyBytes = int64(65536)
r.Body = http.MaxBytesReader(w, r.Body, MaxBodyBytes)
payload, err := io.ReadAll(r.Body)
if err != nil {
log.Printf("Error reading request body: %v\n", err)
w.WriteHeader(http.StatusServiceUnavailable)
return
}
endpointsecret := "whsec_43420f280f7695d9aa411c17da9ffac9afcecc3d36687035a8cb26f7f892f1cf"
event, err := webhook.ConstructEvent(payload, r.Header.Get("Stripe-Signature"), endpointsecret)
if err != nil {
log.Printf("Error verifying webhook signature: %v\n", err)
w.WriteHeader(http.StatusBadRequest) // Return a 400 error on a bad signature
return
}
err = json.Unmarshal(payload, &event)
if err != nil {
log.Printf("Failed to parse webhook body json: %v\n", err.Error())
w.WriteHeader(http.StatusBadRequest)
return
}
// Unmarshal the event data into an appropriate struct depending on its Type
switch event.Type {
case "checkout.session.completed":
var checkoutSession stripe.CheckoutSession
err := json.Unmarshal(event.Data.Raw, &checkoutSession)
if err != nil {
log.Printf("Error parsing webhook JSON: %v\n", err)
w.WriteHeader(http.StatusBadRequest)
return
}
// Then define and call a func to handle the successful payment intent.
// handlePaymentIntentSucceeded(paymentIntent)
handle_checkout_session_completed(checkoutSession)
case "payment_intent.succeeded":
var paymentIntent stripe.PaymentIntent
err := json.Unmarshal(event.Data.Raw, &paymentIntent)
if err != nil {
log.Printf("Error parsing webhook JSON: %v\n", err)
w.WriteHeader(http.StatusBadRequest)
return
}
// Then define and call a func to handle the successful payment intent.
// handlePaymentIntentSucceeded(paymentIntent)
case "payment_method.attached":
var paymentMethod stripe.PaymentMethod
err := json.Unmarshal(event.Data.Raw, &paymentMethod)
if err != nil {
log.Printf("Error parsing webhook JSON: %v\n", err)
w.WriteHeader(http.StatusBadRequest)
return
}
case "setup_intent.succeeded":
var setupIntent stripe.SetupIntent
err := json.Unmarshal(event.Data.Raw, &setupIntent)
if err != nil {
log.Printf("Error parsing webhook JSON: %v\n", err)
w.WriteHeader(http.StatusBadRequest)
return
}
// ... handle other event types
default:
log.Printf("Unhandled event type: %s\n", event.Type)
}
w.WriteHeader(http.StatusOK)
}
func handle_checkout_session_completed(checkoutSession stripe.CheckoutSession) error {
//toprint, _ := json.MarshalIndent(checkoutSession, "", " ")
//log.Println(string(toprint))
subscription, err := subscription.Get(checkoutSession.Subscription.ID, nil)
if err != nil {
log.Println(err)
return err
}
//log.Println(subscription.Customer.ID)
//var status SubscriptionStatus
//switch subscription.Status {
// case "incomplete":
// status = incomplete
// case "incomplete_expired":
// status = incomplete_expired
// case "trialing":
// status = trialing
// case "active":
// status = active
// case "past_due":
// status = past_due
// case "canceled":
// status = canceled
// case "unpaid":
// status = unpaid
// case "paused":
// status = paused
//}
subscriptions.Insert(checkoutSession.Customer.ID, subscription.ID, checkoutSession.ID, subscription.Status)
return nil
}
func handlePaymentMethodAttached(paymentMethod stripe.PaymentMethod) error {
//toprint, _ := json.MarshalIndent(setupintent, "", " ")
//log.Println(string(toprint))
// make this the new customer's default payment method
params := &stripe.CustomerParams{}
params.DefaultSource = &paymentMethod.ID
/*result*/ _, err := customer.Update(paymentMethod.Customer.ID, params)
//log.Println(result)
if err != nil {
log.Println(err)
return err
}
return nil
}