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plugin_web.go
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plugin_web.go
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package premium
import (
"context"
"database/sql"
_ "embed"
"fmt"
"html"
"html/template"
"net/http"
"strconv"
"strings"
"time"
"github.com/botlabs-gg/yagpdb/v2/common"
"github.com/botlabs-gg/yagpdb/v2/premium/models"
"github.com/botlabs-gg/yagpdb/v2/web"
"github.com/didip/tollbooth"
"github.com/didip/tollbooth/limiter"
"github.com/volatiletech/sqlboiler/v4/queries/qm"
"goji.io"
"goji.io/pat"
)
//go:embed assets/premium.html
var PageHTML string
type CtxKey int
var (
CtxKeyIsPremium CtxKey = 1
CtxKeyPremiumTier CtxKey = 2
)
var _ web.Plugin = (*Plugin)(nil)
func (p *Plugin) InitWeb() {
web.AddHTMLTemplate("premium/assets/premium.html", PageHTML)
web.CPMux.Use(PremiumGuildMW)
web.ServerPublicMux.Use(PremiumGuildMW)
submux := goji.SubMux()
web.RootMux.Handle(pat.New("/premium"), submux)
web.RootMux.Handle(pat.New("/premium/*"), submux)
submux.Use(web.RequireSessionMiddleware)
mainHandler := web.ControllerHandler(HandleGetPremiumMainPage, "premium_user_setup")
submux.Handle(pat.Get("/"), mainHandler)
submux.Handle(pat.Get(""), mainHandler)
limiter := tollbooth.NewLimiter(1, &limiter.ExpirableOptions{DefaultExpirationTTL: time.Hour})
limiter.SetIPLookups([]string{"CF-Connecting-IP", "X-Forwarded-For", "RemoteAddr", "X-Real-IP"})
submux.Handle(pat.Post("/lookupcode"), tollbooth.LimitHandler(limiter, web.ControllerPostHandler(HandlePostLookupCode, mainHandler, nil)))
submux.Handle(pat.Post("/redeemcode"), tollbooth.LimitHandler(limiter, web.ControllerPostHandler(HandlePostRedeemCode, mainHandler, nil)))
submux.Handle(pat.Post("/updateslot/:slotID"), web.ControllerPostHandler(HandlePostUpdateSlot, mainHandler, UpdateData{}))
web.CPMux.Handle(pat.Post("/premium/detach"), web.ControllerPostHandler(HandlePostDetachGuildSlot, web.RenderHandler(nil, "cp_premium_detach"), nil))
}
// PremiumGuildMW adds premium data to context and tmpl vars
func PremiumGuildMW(inner http.Handler) http.Handler {
mw := func(w http.ResponseWriter, r *http.Request) {
guild, tmpl := web.GetBaseCPContextData(r.Context())
isPremium, err := IsGuildPremium(guild.ID)
if err != nil {
web.CtxLogger(r.Context()).WithError(err).Error("Failed checking if guild is premium")
}
ctx := r.Context()
ctx = context.WithValue(ctx, CtxKeyIsPremium, isPremium)
tmpl["IsGuildPremium"] = isPremium
if isPremium {
tier, err := GuildPremiumTier(guild.ID)
if err != nil {
web.CtxLogger(ctx).WithError(err).Error("Failed retrieving guild premium tier")
}
tmpl["GuildPremiumTier"] = tier
ctx = context.WithValue(ctx, CtxKeyPremiumTier, tier)
}
inner.ServeHTTP(w, r.WithContext(ctx))
}
return http.HandlerFunc(mw)
}
func HandleGetPremiumMainPage(w http.ResponseWriter, r *http.Request) (tmpl web.TemplateData, err error) {
_, tmpl = web.GetCreateTemplateData(r.Context())
user := web.ContextUser(r.Context())
slots, err := UserPremiumSlots(r.Context(), user.ID)
if err != nil {
return tmpl, err
}
guilds, _ := web.GetUserGuilds(r.Context())
tmpl["UserGuilds"] = guilds
tmpl["PremiumSlotDurationRemaining"] = SlotDurationLeft
tmpl["PremiumSlots"] = slots
return tmpl, nil
}
func HandlePostLookupCode(w http.ResponseWriter, r *http.Request) (tmpl web.TemplateData, err error) {
_, tmpl = web.GetCreateTemplateData(r.Context())
code := r.FormValue("code")
if code == "" {
return tmpl.AddAlerts(web.ErrorAlert("No code provided")), nil
}
codeModel, err := LookupCode(r.Context(), code)
if err != nil {
if err == ErrCodeNotFound {
return tmpl.AddAlerts(web.ErrorAlert("Code not found")), nil
}
return tmpl, err
}
if codeModel.UserID.Valid {
return tmpl.AddAlerts(web.ErrorAlert("That code is already redeemed")), nil
}
tmpl["QueriedCode"] = codeModel
return tmpl, nil
}
func HandlePostRedeemCode(w http.ResponseWriter, r *http.Request) (tmpl web.TemplateData, err error) {
_, tmpl = web.GetCreateTemplateData(r.Context())
user := web.ContextUser(r.Context())
code := r.FormValue("code")
if code == "" {
return tmpl.AddAlerts(web.ErrorAlert("No code provided")), nil
}
err = RedeemCode(r.Context(), code, user.ID)
return tmpl, err
}
type UpdateData struct {
GuildID int64
}
func HandlePostUpdateSlot(w http.ResponseWriter, r *http.Request) (tmpl web.TemplateData, err error) {
_, tmpl = web.GetCreateTemplateData(r.Context())
data := r.Context().Value(common.ContextKeyParsedForm).(*UpdateData)
user := web.ContextUser(r.Context())
strSlotID := pat.Param(r, "slotID")
parsedSlotID, _ := strconv.ParseInt(strSlotID, 10, 64)
err = DetachSlotFromGuild(r.Context(), parsedSlotID, user.ID)
if err != nil {
return tmpl, err
}
if data.GuildID != 0 {
err = AttachSlotToGuild(r.Context(), parsedSlotID, user.ID, data.GuildID)
if err == ErrGuildAlreadyPremium {
tmpl.AddAlerts(web.ErrorAlert("Server already has premium from another slot (possibly from another user)"))
}
}
return tmpl, err
}
func ContextPremium(ctx context.Context) bool {
if v := ctx.Value(CtxKeyIsPremium); v != nil {
return v.(bool)
}
return false
}
func ContextPremiumTier(ctx context.Context) PremiumTier {
if v := ctx.Value(CtxKeyPremiumTier); v != nil {
return v.(PremiumTier)
}
return PremiumTierNone
}
var _ web.PluginWithServerHomeWidget = (*Plugin)(nil)
var _ web.ServerHomeWidgetWithOrder = (*Plugin)(nil)
func (p *Plugin) LoadServerHomeWidget(w http.ResponseWriter, r *http.Request) (web.TemplateData, error) {
ag, templateData := web.GetBaseCPContextData(r.Context())
templateData["WidgetTitle"] = "Premium Status"
footer := "<p><a href=\"/premium\">Manage your user premium slots</a></p>"
if ContextPremium(r.Context()) {
body := strings.Builder{}
for _, v := range GuildPremiumSources {
tier, status, err := v.GuildPremiumDetails(ag.ID)
if err != nil {
return nil, err
}
if tier <= PremiumTierNone {
continue
}
if _, ok := v.(*SlotGuildPremiumSource); ok {
// special handling for this since i was a bit lazy
username := ""
premiumBy, err := PremiumProvidedBy(ag.ID)
if err != nil {
return templateData, err
}
user, err := common.BotSession.User(premiumBy)
if err == nil {
username = user.String()
}
detForm := fmt.Sprintf(`<form data-async-form action="/manage/%d/premium/detach">
<button type="submit" class="btn btn-danger">Detach premium slot</button>
</form>`, ag.ID)
body.WriteString(fmt.Sprintf("<p>Premium tier <b>%s</b> active and provided by user <code>%s (%d)</p></code>\n\n%s", tier.String(), html.EscapeString(username), premiumBy, detForm))
} else {
body.WriteString(fmt.Sprintf("<p class=\"mt-3\">Premium tier <b>%s</b> active and provided by %s: %s</p>", tier.String(), v.Name(), status))
}
}
templateData["WidgetEnabled"] = true
templateData["WidgetBody"] = template.HTML(body.String() + footer)
return templateData, nil
} else {
templateData["WidgetDisabled"] = true
templateData["WidgetBody"] = template.HTML(fmt.Sprintf("<p>Premium not active on this server :(</p>\n\n%s", footer))
}
return templateData, nil
}
func (p *Plugin) ServerHomeWidgetOrder() int {
return 10
}
func HandlePostDetachGuildSlot(w http.ResponseWriter, r *http.Request) (tmpl web.TemplateData, err error) {
activeGuild, templateData := web.GetBaseCPContextData(r.Context())
slot, err := models.PremiumSlots(qm.Where("guild_id = ?", activeGuild.ID)).OneG(r.Context())
if err != nil {
if err == sql.ErrNoRows {
templateData.AddAlerts(web.ErrorAlert("No premium slot attached to this server"))
return templateData, nil
}
return templateData, err
}
err = DetachSlotFromGuild(r.Context(), slot.ID, slot.UserID)
return templateData, err
}