form: fix confirmation success page css

realized half the info from the signup form wasnt being stored in the JWT
used to create the account after email confirmation, and instead of
adding them, the -whole request- from the browser is stored temporarily
by the server, indexed by a smaller JWT that only includes the invite
code. Someone complained on reddit about me storing the password in the
JWT a while back, and although security-wise that isn't an issue (only
the server can decrypt the token), it doesn't happen anymore. Happy?

api-invites.go

@@ -16,7 +16,7 @@ func (app *appContext) checkInvites() {
 	currentTime := time.Now()
 	app.storage.loadInvites()
 	changed := false
-	for code, data := range app.storage.invites {
+	for code, data := range app.storage.GetInvites() {
 		expiry := data.ValidTill
 		if !currentTime.After(expiry) {
 			continue
@@ -54,7 +54,7 @@ func (app *appContext) checkInvites() {
 			wait.Wait()
 		}
 		changed = true
-		delete(app.storage.invites, code)
+		app.storage.DeleteInvitesKey(code)
 	}
 	if changed {
 		app.storage.storeInvites()
@@ -65,7 +65,7 @@ func (app *appContext) checkInvite(code string, used bool, username string) bool
 	currentTime := time.Now()
 	app.storage.loadInvites()
 	changed := false
-	inv, match := app.storage.invites[code]
+	inv, match := app.storage.GetInvitesKey(code)
 	if !match {
 		return false
 	}
@@ -105,21 +105,21 @@ func (app *appContext) checkInvite(code string, used bool, username string) bool
 		}
 		changed = true
 		match = false
-		delete(app.storage.invites, code)
+		app.storage.DeleteInvitesKey(code)
 	} else if used {
 		changed = true
 		del := false
 		newInv := inv
 		if newInv.RemainingUses == 1 {
 			del = true
-			delete(app.storage.invites, code)
+			app.storage.DeleteInvitesKey(code)
 		} else if newInv.RemainingUses != 0 {
 			// 0 means infinite i guess?
 			newInv.RemainingUses--
 		}
 		newInv.UsedBy = append(newInv.UsedBy, []string{username, strconv.FormatInt(currentTime.Unix(), 10)})
 		if !del {
-			app.storage.invites[code] = newInv
+			app.storage.SetInvitesKey(code, newInv)
 		}
 	}
 	if changed {
@@ -219,7 +219,7 @@ func (app *appContext) GenerateInvite(gc *gin.Context) {
 			invite.Profile = "Default"
 		}
 	}
-	app.storage.invites[inviteCode] = invite
+	app.storage.SetInvitesKey(inviteCode, invite)
 	app.storage.storeInvites()
 	respondBool(200, true, gc)
 }
@@ -236,7 +236,7 @@ func (app *appContext) GetInvites(gc *gin.Context) {
 	app.storage.loadInvites()
 	app.checkInvites()
 	var invites []inviteDTO
-	for code, inv := range app.storage.invites {
+	for code, inv := range app.storage.GetInvites() {
 		_, months, days, hours, minutes, _ := timeDiff(inv.ValidTill, currentTime)
 		invite := inviteDTO{
 			Code:        code,
@@ -335,9 +335,9 @@ func (app *appContext) SetProfile(gc *gin.Context) {
 		respond(500, "Profile not found", gc)
 		return
 	}
-	inv := app.storage.invites[req.Invite]
+	inv, _ := app.storage.GetInvitesKey(req.Invite)
 	inv.Profile = req.Profile
-	app.storage.invites[req.Invite] = inv
+	app.storage.SetInvitesKey(req.Invite, inv)
 	app.storage.storeInvites()
 	respondBool(200, true, gc)
 }
@@ -359,7 +359,7 @@ func (app *appContext) SetNotify(gc *gin.Context) {
 		app.debug.Printf("%s: Notification settings change requested", code)
 		app.storage.loadInvites()
 		app.storage.loadEmails()
-		invite, ok := app.storage.invites[code]
+		invite, ok := app.storage.GetInvitesKey(code)
 		if !ok {
 			app.err.Printf("%s Notification setting change failed: Invalid code", code)
 			respond(400, "Invalid invite code", gc)
@@ -398,7 +398,7 @@ func (app *appContext) SetNotify(gc *gin.Context) {
 			changed = true
 		}
 		if changed {
-			app.storage.invites[code] = invite
+			app.storage.SetInvitesKey(code, invite)
 		}
 	}
 	if changed {
@@ -419,9 +419,9 @@ func (app *appContext) DeleteInvite(gc *gin.Context) {
 	gc.BindJSON(&req)
 	app.debug.Printf("%s: Deletion requested", req.Code)
 	var ok bool
-	_, ok = app.storage.invites[req.Code]
+	_, ok = app.storage.GetInvitesKey(req.Code)
 	if ok {
-		delete(app.storage.invites, req.Code)
+		app.storage.DeleteInvitesKey(req.Code)
 		app.storage.storeInvites()
 		app.info.Printf("%s: Invite deleted", req.Code)
 		respondBool(200, true, gc)

api-messages.go

@@ -460,7 +460,7 @@ func (app *appContext) TelegramVerified(gc *gin.Context) {
 // @tags Other
 func (app *appContext) TelegramVerifiedInvite(gc *gin.Context) {
 	code := gc.Param("invCode")
-	if _, ok := app.storage.invites[code]; !ok {
+	if _, ok := app.storage.GetInvitesKey(code); !ok {
 		respondBool(401, false, gc)
 		return
 	}
@@ -484,7 +484,7 @@ func (app *appContext) TelegramVerifiedInvite(gc *gin.Context) {
 // @tags Other
 func (app *appContext) DiscordVerifiedInvite(gc *gin.Context) {
 	code := gc.Param("invCode")
-	if _, ok := app.storage.invites[code]; !ok {
+	if _, ok := app.storage.GetInvitesKey(code); !ok {
 		respondBool(401, false, gc)
 		return
 	}
@@ -513,7 +513,7 @@ func (app *appContext) DiscordServerInvite(gc *gin.Context) {
 		return
 	}
 	code := gc.Param("invCode")
-	if _, ok := app.storage.invites[code]; !ok {
+	if _, ok := app.storage.GetInvitesKey(code); !ok {
 		respondBool(401, false, gc)
 		return
 	}
@@ -537,7 +537,7 @@ func (app *appContext) DiscordServerInvite(gc *gin.Context) {
 // @tags Other
 func (app *appContext) MatrixSendPIN(gc *gin.Context) {
 	code := gc.Param("invCode")
-	if _, ok := app.storage.invites[code]; !ok {
+	if _, ok := app.storage.GetInvitesKey(code); !ok {
 		respondBool(401, false, gc)
 		return
 	}
@@ -575,7 +575,7 @@ func (app *appContext) MatrixSendPIN(gc *gin.Context) {
 // @tags Other
 func (app *appContext) MatrixCheckPIN(gc *gin.Context) {
 	code := gc.Param("invCode")
-	if _, ok := app.storage.invites[code]; !ok {
+	if _, ok := app.storage.GetInvitesKey(code); !ok {
 		app.debug.Println("Matrix: Invite code was invalid")
 		respondBool(401, false, gc)
 		return

api-users.go

@@ -229,11 +229,7 @@ func (app *appContext) newUser(req newUserDTO, confirmed bool) (f errorFunc, suc
 		claims := jwt.MapClaims{
 			"valid":  true,
 			"invite": req.Code,
-			"email":       req.Email,
-			"username":    req.Username,
-			"password":    req.Password,
-			"telegramPIN": req.TelegramPIN,
-			"exp":         time.Now().Add(time.Hour * 12).Unix(),
+			"exp":    time.Now().Add(30 * time.Minute).Unix(),
 			"type":   "confirmation",
 		}
 		tk := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
@@ -246,10 +242,17 @@ func (app *appContext) newUser(req newUserDTO, confirmed bool) (f errorFunc, suc
 			success = false
 			return
 		}
-		inv := app.storage.invites[req.Code]
-		inv.Keys = append(inv.Keys, key)
-		app.storage.invites[req.Code] = inv
-		app.storage.storeInvites()
+		if app.ConfirmationKeys == nil {
+			app.ConfirmationKeys = map[string]map[string]newUserDTO{}
+		}
+		cKeys, ok := app.ConfirmationKeys[req.Code]
+		if !ok {
+			cKeys = map[string]newUserDTO{}
+		}
+		cKeys[key] = req
+		app.confirmationKeysLock.Lock()
+		app.ConfirmationKeys[req.Code] = cKeys
+		app.confirmationKeysLock.Unlock()
 		f = func(gc *gin.Context) {
 			app.debug.Printf("%s: Email confirmation required", req.Code)
 			respond(401, "confirmEmail", gc)
@@ -276,7 +279,7 @@ func (app *appContext) newUser(req newUserDTO, confirmed bool) (f errorFunc, suc
 		return
 	}
 	app.storage.loadProfiles()
-	invite := app.storage.invites[req.Code]
+	invite, _ := app.storage.GetInvitesKey(req.Code)
 	app.checkInvite(req.Code, true, req.Username)
 	if emailEnabled && app.config.Section("notifications").Key("enabled").MustBool(false) {
 		for address, settings := range invite.Notify {

html/invalidCode.html

@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html lang="en" class="{{ .cssClass }}">
     <head>
-        <link rel="stylesheet" type="text/css" href="css/{{ .cssVersion }}bundle.css">
+        <link rel="stylesheet" type="text/css" href="{{ .urlBase }}/css/{{ .cssVersion }}bundle.css">
         {{ template "header.html" . }}
         <title>Invalid Code - jfa-go</title>
     </head>

main.go

@@ -17,6 +17,7 @@ import (
 	"path/filepath"
 	"runtime"
 	"strings"
+	"sync"
 	"syscall"
 	"time"
 
@@ -111,6 +112,8 @@ type appContext struct {
 	tag                  Tag
 	update               Update
 	internalPWRs         map[string]InternalPWR
+	ConfirmationKeys     map[string]map[string]newUserDTO // Map of invite code to jwt to request
+	confirmationKeysLock sync.Mutex
 }
 
 func generateSecret(length int) (string, error) {

storage.go

@@ -167,6 +167,39 @@ func (st *Storage) DeleteMatrixKey(k string) {
 	st.matrixLock.Unlock()
 }
 
+// GetInvites returns a copy of the store.
+func (st *Storage) GetInvites() Invites {
+	if st.invites == nil {
+		st.invites = Invites{}
+	}
+	return st.invites
+}
+
+// GetInvitesKey returns the value stored in the store's key.
+func (st *Storage) GetInvitesKey(k string) (Invite, bool) {
+	v, ok := st.invites[k]
+	return v, ok
+}
+
+// SetInvitesKey stores value v in key k.
+func (st *Storage) SetInvitesKey(k string, v Invite) {
+	st.invitesLock.Lock()
+	if st.invites == nil {
+		st.invites = Invites{}
+	}
+	st.invites[k] = v
+	st.storeInvites()
+	st.invitesLock.Unlock()
+}
+
+// DeleteInvitesKey deletes value at key k.
+func (st *Storage) DeleteInvitesKey(k string) {
+	st.invitesLock.Lock()
+	delete(st.invites, k)
+	st.storeInvites()
+	st.invitesLock.Unlock()
+}
+
 type TelegramUser struct {
 	ChatID   int64
 	Username string
@@ -245,7 +278,6 @@ type Invite struct {
 	Notify   map[string]map[string]bool `json:"notify"`
 	Profile  string                     `json:"profile"`
 	Label    string                     `json:"label,omitempty"`
-	Keys     []string                   `json:"keys,omitempty"`
 	Captchas map[string]*captcha.Data   // Map of Captcha IDs to answers
 }
 
@@ -932,14 +964,10 @@ func (st *Storage) loadLangTelegram(filesystems ...fs.FS) error {
 type Invites map[string]Invite
 
 func (st *Storage) loadInvites() error {
-	st.invitesLock.Lock()
-	defer st.invitesLock.Unlock()
 	return loadJSON(st.invite_path, &st.invites)
 }
 
 func (st *Storage) storeInvites() error {
-	st.invitesLock.Lock()
-	defer st.invitesLock.Unlock()
 	return storeJSON(st.invite_path, st.invites)
 }
 

views.go

@@ -342,9 +342,10 @@ func (app *appContext) ResetPassword(gc *gin.Context) {
 func (app *appContext) GetCaptcha(gc *gin.Context) {
 	code := gc.Param("invCode")
 	captchaID := gc.Param("captchaID")
-	inv, ok := app.storage.invites[code]
+	inv, ok := app.storage.GetInvitesKey(code)
 	if !ok {
 		gcHTML(gc, 404, "invalidCode.html", gin.H{
+			"urlBase":        app.getURLBase(gc),
 			"cssClass":       app.cssClass,
 			"cssVersion":     cssVersion,
 			"contactMessage": app.config.Section("ui").Key("contact_message").String(),
@@ -376,9 +377,10 @@ func (app *appContext) GetCaptcha(gc *gin.Context) {
 // @tags Users
 func (app *appContext) GenCaptcha(gc *gin.Context) {
 	code := gc.Param("invCode")
-	inv, ok := app.storage.invites[code]
+	inv, ok := app.storage.GetInvitesKey(code)
 	if !ok {
 		gcHTML(gc, 404, "invalidCode.html", gin.H{
+			"urlBase":        app.getURLBase(gc),
 			"cssClass":       app.cssClass,
 			"cssVersion":     cssVersion,
 			"contactMessage": app.config.Section("ui").Key("contact_message").String(),
@@ -395,8 +397,7 @@ func (app *appContext) GenCaptcha(gc *gin.Context) {
 	}
 	captchaID := genAuthToken()
 	inv.Captchas[captchaID] = capt
-	app.storage.invites[code] = inv
-	app.storage.storeInvites()
+	app.storage.SetInvitesKey(code, inv)
 	gc.JSON(200, genCaptchaDTO{captchaID})
 	return
 }
@@ -405,7 +406,7 @@ func (app *appContext) verifyCaptcha(code, id, text string) bool {
 	reCAPTCHA := app.config.Section("captcha").Key("recaptcha").MustBool(false)
 	if !reCAPTCHA {
 		// internal CAPTCHA
-		inv, ok := app.storage.invites[code]
+		inv, ok := app.storage.GetInvitesKey(code)
 		if !ok || inv.Captchas == nil {
 			app.debug.Printf("Couldn't find invite \"%s\"", code)
 			return false
@@ -472,9 +473,10 @@ func (app *appContext) VerifyCaptcha(gc *gin.Context) {
 	code := gc.Param("invCode")
 	captchaID := gc.Param("captchaID")
 	text := gc.Param("text")
-	inv, ok := app.storage.invites[code]
+	inv, ok := app.storage.GetInvitesKey(code)
 	if !ok {
 		gcHTML(gc, 404, "invalidCode.html", gin.H{
+			"urlBase":        app.getURLBase(gc),
 			"cssClass":       app.cssClass,
 			"cssVersion":     cssVersion,
 			"contactMessage": app.config.Section("ui").Key("contact_message").String(),
@@ -503,9 +505,10 @@ func (app *appContext) InviteProxy(gc *gin.Context) {
 	lang := app.getLang(gc, FormPage, app.storage.lang.chosenUserLang)
 	/* Don't actually check if the invite is valid, just if it exists, just so the page loads quicker. Invite is actually checked on submit anyway. */
 	// if app.checkInvite(code, false, "") {
-	inv, ok := app.storage.invites[code]
+	inv, ok := app.storage.GetInvitesKey(code)
 	if !ok {
 		gcHTML(gc, 404, "invalidCode.html", gin.H{
+			"urlBase":        app.getURLBase(gc),
 			"cssClass":       app.cssClass,
 			"cssVersion":     cssVersion,
 			"contactMessage": app.config.Section("ui").Key("contact_message").String(),
@@ -513,23 +516,27 @@ func (app *appContext) InviteProxy(gc *gin.Context) {
 		return
 	}
 	if key := gc.Query("key"); key != "" && app.config.Section("email_confirmation").Key("enabled").MustBool(false) {
-		validKey := false
-		keyIndex := -1
-		for i, k := range inv.Keys {
-			if k == key {
-				validKey = true
-				keyIndex = i
-				break
-			}
-		}
 		fail := func() {
 			gcHTML(gc, 404, "404.html", gin.H{
+				"urlBase":        app.getURLBase(gc),
 				"cssClass":       app.cssClass,
 				"cssVersion":     cssVersion,
 				"contactMessage": app.config.Section("ui").Key("contact_message").String(),
 			})
 		}
-		if !validKey {
+		var req newUserDTO
+		if app.ConfirmationKeys == nil {
+			fail()
+			return
+		}
+
+		invKeys, ok := app.ConfirmationKeys[code]
+		if !ok {
+			fail()
+			return
+		}
+		req, ok = invKeys[key]
+		if !ok {
 			fail()
 			return
 		}
@@ -540,26 +547,17 @@ func (app *appContext) InviteProxy(gc *gin.Context) {
 			return
 		}
 		claims, ok := token.Claims.(jwt.MapClaims)
-		expiryUnix := int64(claims["exp"].(float64))
-		if err != nil {
-			fail()
-			app.err.Printf("Failed to parse key expiry: %s", err)
-			return
-		}
-		expiry := time.Unix(expiryUnix, 0)
+		expiry := time.Unix(int64(claims["exp"].(float64)), 0)
 		if !(ok && token.Valid && claims["invite"].(string) == code && claims["type"].(string) == "confirmation" && expiry.After(time.Now())) {
 			fail()
 			app.debug.Printf("Invalid key")
 			return
 		}
-		req := newUserDTO{
-			Email:    claims["email"].(string),
-			Username: claims["username"].(string),
-			Password: claims["password"].(string),
-			Code:     claims["invite"].(string),
-		}
-		_, success := app.newUser(req, true)
+		f, success := app.newUser(req, true)
 		if !success {
+			app.err.Printf("Failed to create new user")
+			// Not meant for us. Calling this will be a mess, but at least it might give us some information.
+			f(gc)
 			fail()
 			return
 		}
@@ -568,22 +566,25 @@ func (app *appContext) InviteProxy(gc *gin.Context) {
 			gc.Redirect(301, jfLink)
 		} else {
 			gcHTML(gc, http.StatusOK, "create-success.html", gin.H{
+				"urlBase":        app.getURLBase(gc),
 				"cssClass":       app.cssClass,
+				"cssVersion":     cssVersion,
 				"strings":        app.storage.lang.User[lang].Strings,
 				"successMessage": app.config.Section("ui").Key("success_message").String(),
 				"contactMessage": app.config.Section("ui").Key("contact_message").String(),
 				"jfLink":         jfLink,
 			})
 		}
-		inv, ok := app.storage.invites[code]
-		if ok {
-			l := len(inv.Keys)
-			inv.Keys[l-1], inv.Keys[keyIndex] = inv.Keys[keyIndex], inv.Keys[l-1]
-			app.storage.invites[code] = inv
-		}
+		delete(invKeys, key)
+		app.confirmationKeysLock.Lock()
+		app.ConfirmationKeys[code] = invKeys
+		app.confirmationKeysLock.Unlock()
 		return
 	}
-	email := app.storage.invites[code].SendTo
+	email := ""
+	if invite, ok := app.storage.GetInvitesKey(code); ok {
+		email = invite.SendTo
+	}
 	if strings.Contains(email, "Failed") || !strings.Contains(email, "@") {
 		email = ""
 	}
@@ -657,6 +658,7 @@ func (app *appContext) InviteProxy(gc *gin.Context) {
 func (app *appContext) NoRouteHandler(gc *gin.Context) {
 	app.pushResources(gc, OtherPage)
 	gcHTML(gc, 404, "404.html", gin.H{
+		"urlBase":        app.getURLBase(gc),
 		"cssClass":       app.cssClass,
 		"cssVersion":     cssVersion,
 		"contactMessage": app.config.Section("ui").Key("contact_message").String(),